ffmpeg-2.8.5

git-svn-id: svn://kolibrios.org@6147 a494cfbc-eb01-0410-851d-a64ba20cac60

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/012v.c

@@ -0,0 +1,155 @@
+/*
+ * 012v decoder
+ *
+ * Copyright (C) 2012 Carl Eugen Hoyos
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "avcodec.h"
+#include "internal.h"
+#include "libavutil/intreadwrite.h"
+
+static av_cold int zero12v_decode_init(AVCodecContext *avctx)
+{
+    avctx->pix_fmt             = AV_PIX_FMT_YUV422P16;
+    avctx->bits_per_raw_sample = 10;
+
+    if (avctx->codec_tag == MKTAG('a', '1', '2', 'v'))
+        avpriv_request_sample(avctx, "transparency");
+
+    return 0;
+}
+
+static int zero12v_decode_frame(AVCodecContext *avctx, void *data,
+                                int *got_frame, AVPacket *avpkt)
+{
+    int line, ret;
+    const int width = avctx->width;
+    AVFrame *pic = data;
+    uint16_t *y, *u, *v;
+    const uint8_t *line_end, *src = avpkt->data;
+    int stride = avctx->width * 8 / 3;
+
+    if (width <= 1 || avctx->height <= 0) {
+        av_log(avctx, AV_LOG_ERROR, "Dimensions %dx%d not supported.\n", width, avctx->height);
+        return AVERROR_INVALIDDATA;
+    }
+
+    if (   avctx->codec_tag == MKTAG('0', '1', '2', 'v')
+        && avpkt->size % avctx->height == 0
+        && avpkt->size / avctx->height * 3 >= width * 8)
+        stride = avpkt->size / avctx->height;
+
+    if (avpkt->size < avctx->height * stride) {
+        av_log(avctx, AV_LOG_ERROR, "Packet too small: %d instead of %d\n",
+               avpkt->size, avctx->height * stride);
+        return AVERROR_INVALIDDATA;
+    }
+
+    if ((ret = ff_get_buffer(avctx, pic, 0)) < 0)
+        return ret;
+
+    pic->pict_type = AV_PICTURE_TYPE_I;
+    pic->key_frame = 1;
+
+    line_end = avpkt->data + stride;
+    for (line = 0; line < avctx->height; line++) {
+        uint16_t y_temp[6] = {0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000};
+        uint16_t u_temp[3] = {0x8000, 0x8000, 0x8000};
+        uint16_t v_temp[3] = {0x8000, 0x8000, 0x8000};
+        int x;
+        y = (uint16_t *)(pic->data[0] + line * pic->linesize[0]);
+        u = (uint16_t *)(pic->data[1] + line * pic->linesize[1]);
+        v = (uint16_t *)(pic->data[2] + line * pic->linesize[2]);
+
+        for (x = 0; x < width; x += 6) {
+            uint32_t t;
+
+            if (width - x < 6 || line_end - src < 16) {
+                y = y_temp;
+                u = u_temp;
+                v = v_temp;
+            }
+
+            if (line_end - src < 4)
+                break;
+
+            t = AV_RL32(src);
+            src += 4;
+            *u++ = t <<  6 & 0xFFC0;
+            *y++ = t >>  4 & 0xFFC0;
+            *v++ = t >> 14 & 0xFFC0;
+
+            if (line_end - src < 4)
+                break;
+
+            t = AV_RL32(src);
+            src += 4;
+            *y++ = t <<  6 & 0xFFC0;
+            *u++ = t >>  4 & 0xFFC0;
+            *y++ = t >> 14 & 0xFFC0;
+
+            if (line_end - src < 4)
+                break;
+
+            t = AV_RL32(src);
+            src += 4;
+            *v++ = t <<  6 & 0xFFC0;
+            *y++ = t >>  4 & 0xFFC0;
+            *u++ = t >> 14 & 0xFFC0;
+
+            if (line_end - src < 4)
+                break;
+
+            t = AV_RL32(src);
+            src += 4;
+            *y++ = t <<  6 & 0xFFC0;
+            *v++ = t >>  4 & 0xFFC0;
+            *y++ = t >> 14 & 0xFFC0;
+
+            if (width - x < 6)
+                break;
+        }
+
+        if (x < width) {
+            y = x   + (uint16_t *)(pic->data[0] + line * pic->linesize[0]);
+            u = x/2 + (uint16_t *)(pic->data[1] + line * pic->linesize[1]);
+            v = x/2 + (uint16_t *)(pic->data[2] + line * pic->linesize[2]);
+            memcpy(y, y_temp, sizeof(*y) * (width - x));
+            memcpy(u, u_temp, sizeof(*u) * (width - x + 1) / 2);
+            memcpy(v, v_temp, sizeof(*v) * (width - x + 1) / 2);
+        }
+
+        line_end += stride;
+        src = line_end - stride;
+    }
+
+    *got_frame = 1;
+
+    return avpkt->size;
+}
+
+AVCodec ff_zero12v_decoder = {
+    .name           = "012v",
+    .long_name      = NULL_IF_CONFIG_SMALL("Uncompressed 4:2:2 10-bit"),
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = AV_CODEC_ID_012V,
+    .init           = zero12v_decode_init,
+    .decode         = zero12v_decode_frame,
+    .capabilities   = AV_CODEC_CAP_DR1,
+};

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/8bps.c

@@ -0,0 +1,188 @@
+/*
+ * Quicktime Planar RGB (8BPS) Video Decoder
+ * Copyright (C) 2003 Roberto Togni
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * QT 8BPS Video Decoder by Roberto Togni
+ * For more information about the 8BPS format, visit:
+ *   http://www.pcisys.net/~melanson/codecs/
+ *
+ * Supports: PAL8 (RGB 8bpp, paletted)
+ *         : BGR24 (RGB 24bpp) (can also output it as RGB32)
+ *         : RGB32 (RGB 32bpp, 4th plane is alpha)
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "libavutil/internal.h"
+#include "libavutil/intreadwrite.h"
+#include "avcodec.h"
+#include "internal.h"
+
+
+static const enum AVPixelFormat pixfmt_rgb24[] = {
+    AV_PIX_FMT_BGR24, AV_PIX_FMT_RGB32, AV_PIX_FMT_NONE };
+
+typedef struct EightBpsContext {
+    AVCodecContext *avctx;
+
+    unsigned char planes;
+    unsigned char planemap[4];
+
+    uint32_t pal[256];
+} EightBpsContext;
+
+static int decode_frame(AVCodecContext *avctx, void *data,
+                        int *got_frame, AVPacket *avpkt)
+{
+    AVFrame *frame = data;
+    const uint8_t *buf = avpkt->data;
+    int buf_size       = avpkt->size;
+    EightBpsContext * const c = avctx->priv_data;
+    const unsigned char *encoded = buf;
+    unsigned char *pixptr, *pixptr_end;
+    unsigned int height = avctx->height; // Real image height
+    unsigned int dlen, p, row;
+    const unsigned char *lp, *dp, *ep;
+    unsigned char count;
+    unsigned int planes     = c->planes;
+    unsigned char *planemap = c->planemap;
+    int ret;
+
+    if ((ret = ff_get_buffer(avctx, frame, 0)) < 0)
+        return ret;
+
+    ep = encoded + buf_size;
+
+    /* Set data pointer after line lengths */
+    dp = encoded + planes * (height << 1);
+
+    for (p = 0; p < planes; p++) {
+        /* Lines length pointer for this plane */
+        lp = encoded + p * (height << 1);
+
+        /* Decode a plane */
+        for (row = 0; row < height; row++) {
+            pixptr = frame->data[0] + row * frame->linesize[0] + planemap[p];
+            pixptr_end = pixptr + frame->linesize[0];
+            if (ep - lp < row * 2 + 2)
+                return AVERROR_INVALIDDATA;
+            dlen = av_be2ne16(*(const unsigned short *)(lp + row * 2));
+            /* Decode a row of this plane */
+            while (dlen > 0) {
+                if (ep - dp <= 1)
+                    return AVERROR_INVALIDDATA;
+                if ((count = *dp++) <= 127) {
+                    count++;
+                    dlen -= count + 1;
+                    if (pixptr_end - pixptr < count * planes)
+                        break;
+                    if (ep - dp < count)
+                        return AVERROR_INVALIDDATA;
+                    while (count--) {
+                        *pixptr = *dp++;
+                        pixptr += planes;
+                    }
+                } else {
+                    count = 257 - count;
+                    if (pixptr_end - pixptr < count * planes)
+                        break;
+                    while (count--) {
+                        *pixptr = *dp;
+                        pixptr += planes;
+                    }
+                    dp++;
+                    dlen -= 2;
+                }
+            }
+        }
+    }
+
+    if (avctx->bits_per_coded_sample <= 8) {
+        const uint8_t *pal = av_packet_get_side_data(avpkt,
+                                                     AV_PKT_DATA_PALETTE,
+                                                     NULL);
+        if (pal) {
+            frame->palette_has_changed = 1;
+            memcpy(c->pal, pal, AVPALETTE_SIZE);
+        }
+
+        memcpy (frame->data[1], c->pal, AVPALETTE_SIZE);
+    }
+
+    *got_frame = 1;
+
+    /* always report that the buffer was completely consumed */
+    return buf_size;
+}
+
+static av_cold int decode_init(AVCodecContext *avctx)
+{
+    EightBpsContext * const c = avctx->priv_data;
+
+    c->avctx       = avctx;
+
+    switch (avctx->bits_per_coded_sample) {
+    case 8:
+        avctx->pix_fmt = AV_PIX_FMT_PAL8;
+        c->planes      = 1;
+        c->planemap[0] = 0; // 1st plane is palette indexes
+        break;
+    case 24:
+        avctx->pix_fmt = ff_get_format(avctx, pixfmt_rgb24);
+        c->planes      = 3;
+        c->planemap[0] = 2; // 1st plane is red
+        c->planemap[1] = 1; // 2nd plane is green
+        c->planemap[2] = 0; // 3rd plane is blue
+        break;
+    case 32:
+        avctx->pix_fmt = AV_PIX_FMT_RGB32;
+        c->planes      = 4;
+        /* handle planemap setup later for decoding rgb24 data as rbg32 */
+        break;
+    default:
+        av_log(avctx, AV_LOG_ERROR, "Error: Unsupported color depth: %u.\n",
+               avctx->bits_per_coded_sample);
+        return AVERROR_INVALIDDATA;
+    }
+
+    if (avctx->pix_fmt == AV_PIX_FMT_RGB32) {
+        c->planemap[0] = HAVE_BIGENDIAN ? 1 : 2; // 1st plane is red
+        c->planemap[1] = HAVE_BIGENDIAN ? 2 : 1; // 2nd plane is green
+        c->planemap[2] = HAVE_BIGENDIAN ? 3 : 0; // 3rd plane is blue
+        c->planemap[3] = HAVE_BIGENDIAN ? 0 : 3; // 4th plane is alpha
+    }
+    return 0;
+}
+
+AVCodec ff_eightbps_decoder = {
+    .name           = "8bps",
+    .long_name      = NULL_IF_CONFIG_SMALL("QuickTime 8BPS video"),
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = AV_CODEC_ID_8BPS,
+    .priv_data_size = sizeof(EightBpsContext),
+    .init           = decode_init,
+    .decode         = decode_frame,
+    .capabilities   = AV_CODEC_CAP_DR1,
+};

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/8svx.c

@@ -0,0 +1,216 @@
+/*
+ * Copyright (C) 2008 Jaikrishnan Menon
+ * Copyright (C) 2011 Stefano Sabatini
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * 8svx audio decoder
+ * @author Jaikrishnan Menon
+ *
+ * supports: fibonacci delta encoding
+ *         : exponential encoding
+ *
+ * For more information about the 8SVX format:
+ * http://netghost.narod.ru/gff/vendspec/iff/iff.txt
+ * http://sox.sourceforge.net/AudioFormats-11.html
+ * http://aminet.net/package/mus/misc/wavepak
+ * http://amigan.1emu.net/reg/8SVX.txt
+ *
+ * Samples can be found here:
+ * http://aminet.net/mods/smpl/
+ */
+
+#include "libavutil/avassert.h"
+#include "avcodec.h"
+#include "internal.h"
+#include "libavutil/common.h"
+
+/** decoder context */
+typedef struct EightSvxContext {
+    uint8_t fib_acc[2];
+    const int8_t *table;
+
+    /* buffer used to store the whole first packet.
+       data is only sent as one large packet */
+    uint8_t *data[2];
+    int data_size;
+    int data_idx;
+} EightSvxContext;
+
+static const int8_t fibonacci[16]   = { -34,  -21, -13,  -8, -5, -3, -2, -1, 0, 1, 2, 3, 5, 8,  13, 21 };
+static const int8_t exponential[16] = { -128, -64, -32, -16, -8, -4, -2, -1, 0, 1, 2, 4, 8, 16, 32, 64 };
+
+#define MAX_FRAME_SIZE 2048
+
+/**
+ * Delta decode the compressed values in src, and put the resulting
+ * decoded samples in dst.
+ *
+ * @param[in,out] state starting value. it is saved for use in the next call.
+ * @param table delta sequence table
+ */
+static void delta_decode(uint8_t *dst, const uint8_t *src, int src_size,
+                         uint8_t *state, const int8_t *table)
+{
+    uint8_t val = *state;
+
+    while (src_size--) {
+        uint8_t d = *src++;
+        val = av_clip_uint8(val + table[d & 0xF]);
+        *dst++ = val;
+        val = av_clip_uint8(val + table[d >> 4]);
+        *dst++ = val;
+    }
+
+    *state = val;
+}
+
+/** decode a frame */
+static int eightsvx_decode_frame(AVCodecContext *avctx, void *data,
+                                 int *got_frame_ptr, AVPacket *avpkt)
+{
+    EightSvxContext *esc = avctx->priv_data;
+    AVFrame *frame       = data;
+    int buf_size;
+    int ch, ret;
+    int hdr_size = 2;
+
+    /* decode and interleave the first packet */
+    if (!esc->data[0] && avpkt) {
+        int chan_size = avpkt->size / avctx->channels - hdr_size;
+
+        if (avpkt->size % avctx->channels) {
+            av_log(avctx, AV_LOG_WARNING, "Packet with odd size, ignoring last byte\n");
+        }
+        if (avpkt->size < (hdr_size + 1) * avctx->channels) {
+            av_log(avctx, AV_LOG_ERROR, "packet size is too small\n");
+            return AVERROR_INVALIDDATA;
+        }
+
+        esc->fib_acc[0] = avpkt->data[1] + 128;
+        if (avctx->channels == 2)
+            esc->fib_acc[1] = avpkt->data[2+chan_size+1] + 128;
+
+        esc->data_idx  = 0;
+        esc->data_size = chan_size;
+        if (!(esc->data[0] = av_malloc(chan_size)))
+            return AVERROR(ENOMEM);
+        if (avctx->channels == 2) {
+            if (!(esc->data[1] = av_malloc(chan_size))) {
+                av_freep(&esc->data[0]);
+                return AVERROR(ENOMEM);
+            }
+        }
+        memcpy(esc->data[0], &avpkt->data[hdr_size], chan_size);
+        if (avctx->channels == 2)
+            memcpy(esc->data[1], &avpkt->data[2*hdr_size+chan_size], chan_size);
+    }
+    if (!esc->data[0]) {
+        av_log(avctx, AV_LOG_ERROR, "unexpected empty packet\n");
+        return AVERROR_INVALIDDATA;
+    }
+
+    /* decode next piece of data from the buffer */
+    buf_size = FFMIN(MAX_FRAME_SIZE, esc->data_size - esc->data_idx);
+    if (buf_size <= 0) {
+        *got_frame_ptr = 0;
+        return avpkt->size;
+    }
+
+    /* get output buffer */
+    frame->nb_samples = buf_size * 2;
+    if ((ret = ff_get_buffer(avctx, frame, 0)) < 0)
+        return ret;
+
+    for (ch = 0; ch < avctx->channels; ch++) {
+        delta_decode(frame->data[ch], &esc->data[ch][esc->data_idx],
+                     buf_size, &esc->fib_acc[ch], esc->table);
+    }
+
+    esc->data_idx += buf_size;
+
+    *got_frame_ptr = 1;
+
+    return ((avctx->frame_number == 0)*hdr_size + buf_size)*avctx->channels;
+}
+
+static av_cold int eightsvx_decode_init(AVCodecContext *avctx)
+{
+    EightSvxContext *esc = avctx->priv_data;
+
+    if (avctx->channels < 1 || avctx->channels > 2) {
+        av_log(avctx, AV_LOG_ERROR, "8SVX does not support more than 2 channels\n");
+        return AVERROR_INVALIDDATA;
+    }
+
+    switch (avctx->codec->id) {
+    case AV_CODEC_ID_8SVX_FIB: esc->table = fibonacci;    break;
+    case AV_CODEC_ID_8SVX_EXP: esc->table = exponential;  break;
+    default:
+        av_log(avctx, AV_LOG_ERROR, "Invalid codec id %d.\n", avctx->codec->id);
+        return AVERROR_INVALIDDATA;
+    }
+    avctx->sample_fmt = AV_SAMPLE_FMT_U8P;
+
+    return 0;
+}
+
+static av_cold int eightsvx_decode_close(AVCodecContext *avctx)
+{
+    EightSvxContext *esc = avctx->priv_data;
+
+    av_freep(&esc->data[0]);
+    av_freep(&esc->data[1]);
+    esc->data_size = 0;
+    esc->data_idx = 0;
+
+    return 0;
+}
+
+#if CONFIG_EIGHTSVX_FIB_DECODER
+AVCodec ff_eightsvx_fib_decoder = {
+  .name           = "8svx_fib",
+  .long_name      = NULL_IF_CONFIG_SMALL("8SVX fibonacci"),
+  .type           = AVMEDIA_TYPE_AUDIO,
+  .id             = AV_CODEC_ID_8SVX_FIB,
+  .priv_data_size = sizeof (EightSvxContext),
+  .init           = eightsvx_decode_init,
+  .decode         = eightsvx_decode_frame,
+  .close          = eightsvx_decode_close,
+  .capabilities   = AV_CODEC_CAP_DR1,
+  .sample_fmts    = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_U8P,
+                                                    AV_SAMPLE_FMT_NONE },
+};
+#endif
+#if CONFIG_EIGHTSVX_EXP_DECODER
+AVCodec ff_eightsvx_exp_decoder = {
+  .name           = "8svx_exp",
+  .long_name      = NULL_IF_CONFIG_SMALL("8SVX exponential"),
+  .type           = AVMEDIA_TYPE_AUDIO,
+  .id             = AV_CODEC_ID_8SVX_EXP,
+  .priv_data_size = sizeof (EightSvxContext),
+  .init           = eightsvx_decode_init,
+  .decode         = eightsvx_decode_frame,
+  .close          = eightsvx_decode_close,
+  .capabilities   = AV_CODEC_CAP_DR1,
+  .sample_fmts    = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_U8P,
+                                                    AV_SAMPLE_FMT_NONE },
+};
+#endif

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/a64colors.h

@@ -0,0 +1,52 @@
+/*
+ * a64 video encoder - c64 colors in rgb (Pepto)
+ * Copyright (c) 2009 Tobias Bindhammer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * a64 video encoder - c64 colors in rgb
+ */
+
+#ifndef AVCODEC_A64COLORS_H
+#define AVCODEC_A64COLORS_H
+
+#include <stdint.h>
+
+/* c64 palette in RGB */
+static const uint8_t a64_palette[16][3] = {
+    {0x00, 0x00, 0x00},
+    {0xff, 0xff, 0xff},
+    {0x68, 0x37, 0x2b},
+    {0x70, 0xa4, 0xb2},
+    {0x6f, 0x3d, 0x86},
+    {0x58, 0x8d, 0x43},
+    {0x35, 0x28, 0x79},
+    {0xb8, 0xc7, 0x6f},
+    {0x6f, 0x4f, 0x25},
+    {0x43, 0x39, 0x00},
+    {0x9a, 0x67, 0x59},
+    {0x44, 0x44, 0x44},
+    {0x6c, 0x6c, 0x6c},
+    {0x9a, 0xd2, 0x84},
+    {0x6c, 0x5e, 0xb5},
+    {0x95, 0x95, 0x95},
+};
+
+#endif /* AVCODEC_A64COLORS_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/a64multienc.c

@@ -0,0 +1,425 @@
+/*
+ * a64 video encoder - multicolor modes
+ * Copyright (c) 2009 Tobias Bindhammer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * a64 video encoder - multicolor modes
+ */
+
+#include "a64colors.h"
+#include "a64tables.h"
+#include "elbg.h"
+#include "internal.h"
+#include "libavutil/avassert.h"
+#include "libavutil/common.h"
+#include "libavutil/intreadwrite.h"
+
+#define DITHERSTEPS   8
+#define CHARSET_CHARS 256
+#define INTERLACED    1
+#define CROP_SCREENS  1
+
+#define C64XRES 320
+#define C64YRES 200
+
+typedef struct A64Context {
+    /* variables for multicolor modes */
+    AVLFG randctx;
+    int mc_lifetime;
+    int mc_use_5col;
+    unsigned mc_frame_counter;
+    int *mc_meta_charset;
+    int *mc_charmap;
+    int *mc_best_cb;
+    int mc_luma_vals[5];
+    uint8_t *mc_charset;
+    uint8_t *mc_colram;
+    uint8_t *mc_palette;
+    int mc_pal_size;
+
+    /* pts of the next packet that will be output */
+    int64_t next_pts;
+} A64Context;
+
+/* gray gradient */
+static const int mc_colors[5]={0x0,0xb,0xc,0xf,0x1};
+
+/* other possible gradients - to be tested */
+//static const int mc_colors[5]={0x0,0x8,0xa,0xf,0x7};
+//static const int mc_colors[5]={0x0,0x9,0x8,0xa,0x3};
+
+static void to_meta_with_crop(AVCodecContext *avctx,
+                              const AVFrame *p, int *dest)
+{
+    int blockx, blocky, x, y;
+    int luma = 0;
+    int height = FFMIN(avctx->height, C64YRES);
+    int width  = FFMIN(avctx->width , C64XRES);
+    uint8_t *src = p->data[0];
+
+    for (blocky = 0; blocky < C64YRES; blocky += 8) {
+        for (blockx = 0; blockx < C64XRES; blockx += 8) {
+            for (y = blocky; y < blocky + 8 && y < C64YRES; y++) {
+                for (x = blockx; x < blockx + 8 && x < C64XRES; x += 2) {
+                    if(x < width && y < height) {
+                        if (x + 1 < width) {
+                            /* build average over 2 pixels */
+                            luma = (src[(x + 0 + y * p->linesize[0])] +
+                                    src[(x + 1 + y * p->linesize[0])]) / 2;
+                        } else {
+                            luma = src[(x + y * p->linesize[0])];
+                        }
+                        /* write blocks as linear data now so they are suitable for elbg */
+                        dest[0] = luma;
+                    }
+                    dest++;
+                }
+            }
+        }
+    }
+}
+
+static void render_charset(AVCodecContext *avctx, uint8_t *charset,
+                           uint8_t *colrammap)
+{
+    A64Context *c = avctx->priv_data;
+    uint8_t row1, row2;
+    int charpos, x, y;
+    int a, b;
+    uint8_t pix;
+    int lowdiff, highdiff;
+    int *best_cb = c->mc_best_cb;
+    static uint8_t index1[256];
+    static uint8_t index2[256];
+    static uint8_t dither[256];
+    int i;
+    int distance;
+
+    /* generate lookup-tables for dither and index before looping */
+    i = 0;
+    for (a=0; a < 256; a++) {
+        if(i < c->mc_pal_size -1 && a == c->mc_luma_vals[i + 1]) {
+            distance = c->mc_luma_vals[i + 1] - c->mc_luma_vals[i];
+            for(b = 0; b <= distance; b++) {
+                  dither[c->mc_luma_vals[i] + b] = b * (DITHERSTEPS - 1) / distance;
+            }
+            i++;
+        }
+        if(i >= c->mc_pal_size - 1) dither[a] = 0;
+        index1[a] = i;
+        index2[a] = FFMIN(i + 1, c->mc_pal_size - 1);
+    }
+
+    /* and render charset */
+    for (charpos = 0; charpos < CHARSET_CHARS; charpos++) {
+        lowdiff  = 0;
+        highdiff = 0;
+        for (y = 0; y < 8; y++) {
+            row1 = 0; row2 = 0;
+            for (x = 0; x < 4; x++) {
+                pix = best_cb[y * 4 + x];
+
+                /* accumulate error for brightest/darkest color */
+                if (index1[pix] >= 3)
+                    highdiff += pix - c->mc_luma_vals[3];
+                if (index1[pix] < 1)
+                    lowdiff += c->mc_luma_vals[1] - pix;
+
+                row1 <<= 2;
+
+                if (INTERLACED) {
+                    row2 <<= 2;
+                    if (interlaced_dither_patterns[dither[pix]][(y & 3) * 2 + 0][x & 3])
+                        row1 |= 3-(index2[pix] & 3);
+                    else
+                        row1 |= 3-(index1[pix] & 3);
+
+                    if (interlaced_dither_patterns[dither[pix]][(y & 3) * 2 + 1][x & 3])
+                        row2 |= 3-(index2[pix] & 3);
+                    else
+                        row2 |= 3-(index1[pix] & 3);
+                }
+                else {
+                    if (multi_dither_patterns[dither[pix]][(y & 3)][x & 3])
+                        row1 |= 3-(index2[pix] & 3);
+                    else
+                        row1 |= 3-(index1[pix] & 3);
+                }
+            }
+            charset[y+0x000] = row1;
+            if (INTERLACED) charset[y+0x800] = row2;
+        }
+        /* do we need to adjust pixels? */
+        if (highdiff > 0 && lowdiff > 0 && c->mc_use_5col) {
+            if (lowdiff > highdiff) {
+                for (x = 0; x < 32; x++)
+                    best_cb[x] = FFMIN(c->mc_luma_vals[3], best_cb[x]);
+            } else {
+                for (x = 0; x < 32; x++)
+                    best_cb[x] = FFMAX(c->mc_luma_vals[1], best_cb[x]);
+            }
+            charpos--;          /* redo now adjusted char */
+        /* no adjustment needed, all fine */
+        } else {
+            /* advance pointers */
+            best_cb += 32;
+            charset += 8;
+
+            /* remember colorram value */
+            colrammap[charpos] = (highdiff > 0);
+        }
+    }
+}
+
+static av_cold int a64multi_close_encoder(AVCodecContext *avctx)
+{
+    A64Context *c = avctx->priv_data;
+    av_freep(&c->mc_meta_charset);
+    av_freep(&c->mc_best_cb);
+    av_freep(&c->mc_charset);
+    av_freep(&c->mc_charmap);
+    av_freep(&c->mc_colram);
+    return 0;
+}
+
+static av_cold int a64multi_encode_init(AVCodecContext *avctx)
+{
+    A64Context *c = avctx->priv_data;
+    int a;
+    av_lfg_init(&c->randctx, 1);
+
+    if (avctx->global_quality < 1) {
+        c->mc_lifetime = 4;
+    } else {
+        c->mc_lifetime = avctx->global_quality /= FF_QP2LAMBDA;
+    }
+
+    av_log(avctx, AV_LOG_INFO, "charset lifetime set to %d frame(s)\n", c->mc_lifetime);
+
+    c->mc_frame_counter = 0;
+    c->mc_use_5col      = avctx->codec->id == AV_CODEC_ID_A64_MULTI5;
+    c->mc_pal_size      = 4 + c->mc_use_5col;
+
+    /* precalc luma values for later use */
+    for (a = 0; a < c->mc_pal_size; a++) {
+        c->mc_luma_vals[a]=a64_palette[mc_colors[a]][0] * 0.30 +
+                           a64_palette[mc_colors[a]][1] * 0.59 +
+                           a64_palette[mc_colors[a]][2] * 0.11;
+    }
+
+    if (!(c->mc_meta_charset = av_mallocz_array(c->mc_lifetime, 32000 * sizeof(int))) ||
+       !(c->mc_best_cb       = av_malloc(CHARSET_CHARS * 32 * sizeof(int)))     ||
+       !(c->mc_charmap       = av_mallocz_array(c->mc_lifetime, 1000 * sizeof(int))) ||
+       !(c->mc_colram        = av_mallocz(CHARSET_CHARS * sizeof(uint8_t)))     ||
+       !(c->mc_charset       = av_malloc(0x800 * (INTERLACED+1) * sizeof(uint8_t)))) {
+        av_log(avctx, AV_LOG_ERROR, "Failed to allocate buffer memory.\n");
+        return AVERROR(ENOMEM);
+    }
+
+    /* set up extradata */
+    if (!(avctx->extradata = av_mallocz(8 * 4 + AV_INPUT_BUFFER_PADDING_SIZE))) {
+        av_log(avctx, AV_LOG_ERROR, "Failed to allocate memory for extradata.\n");
+        return AVERROR(ENOMEM);
+    }
+    avctx->extradata_size = 8 * 4;
+    AV_WB32(avctx->extradata, c->mc_lifetime);
+    AV_WB32(avctx->extradata + 16, INTERLACED);
+
+    if (!avctx->codec_tag)
+         avctx->codec_tag = AV_RL32("a64m");
+
+    c->next_pts = AV_NOPTS_VALUE;
+
+    return 0;
+}
+
+static void a64_compress_colram(unsigned char *buf, int *charmap, uint8_t *colram)
+{
+    int a;
+    uint8_t temp;
+    /* only needs to be done in 5col mode */
+    /* XXX could be squeezed to 0x80 bytes */
+    for (a = 0; a < 256; a++) {
+        temp  = colram[charmap[a + 0x000]] << 0;
+        temp |= colram[charmap[a + 0x100]] << 1;
+        temp |= colram[charmap[a + 0x200]] << 2;
+        if (a < 0xe8) temp |= colram[charmap[a + 0x300]] << 3;
+        buf[a] = temp << 2;
+    }
+}
+
+static int a64multi_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
+                                 const AVFrame *p, int *got_packet)
+{
+    A64Context *c = avctx->priv_data;
+
+    int frame;
+    int x, y;
+    int b_height;
+    int b_width;
+
+    int req_size, ret;
+    uint8_t *buf = NULL;
+
+    int *charmap     = c->mc_charmap;
+    uint8_t *colram  = c->mc_colram;
+    uint8_t *charset = c->mc_charset;
+    int *meta        = c->mc_meta_charset;
+    int *best_cb     = c->mc_best_cb;
+
+    int charset_size = 0x800 * (INTERLACED + 1);
+    int colram_size  = 0x100 * c->mc_use_5col;
+    int screen_size;
+
+    if(CROP_SCREENS) {
+        b_height = FFMIN(avctx->height,C64YRES) >> 3;
+        b_width  = FFMIN(avctx->width ,C64XRES) >> 3;
+        screen_size = b_width * b_height;
+    } else {
+        b_height = C64YRES >> 3;
+        b_width  = C64XRES >> 3;
+        screen_size = 0x400;
+    }
+
+    /* no data, means end encoding asap */
+    if (!p) {
+        /* all done, end encoding */
+        if (!c->mc_lifetime) return 0;
+        /* no more frames in queue, prepare to flush remaining frames */
+        if (!c->mc_frame_counter) {
+            c->mc_lifetime = 0;
+        }
+        /* still frames in queue so limit lifetime to remaining frames */
+        else c->mc_lifetime = c->mc_frame_counter;
+    /* still new data available */
+    } else {
+        /* fill up mc_meta_charset with data until lifetime exceeds */
+        if (c->mc_frame_counter < c->mc_lifetime) {
+            to_meta_with_crop(avctx, p, meta + 32000 * c->mc_frame_counter);
+            c->mc_frame_counter++;
+            if (c->next_pts == AV_NOPTS_VALUE)
+                c->next_pts = p->pts;
+            /* lifetime is not reached so wait for next frame first */
+            return 0;
+        }
+    }
+
+    /* lifetime reached so now convert X frames at once */
+    if (c->mc_frame_counter == c->mc_lifetime) {
+        req_size = 0;
+        /* any frames to encode? */
+        if (c->mc_lifetime) {
+            int alloc_size = charset_size + c->mc_lifetime*(screen_size + colram_size);
+            if ((ret = ff_alloc_packet2(avctx, pkt, alloc_size, 0)) < 0)
+                return ret;
+            buf = pkt->data;
+
+            /* calc optimal new charset + charmaps */
+            ret = avpriv_init_elbg(meta, 32, 1000 * c->mc_lifetime, best_cb,
+                               CHARSET_CHARS, 50, charmap, &c->randctx);
+            if (ret < 0)
+                return ret;
+            ret = avpriv_do_elbg(meta, 32, 1000 * c->mc_lifetime, best_cb,
+                             CHARSET_CHARS, 50, charmap, &c->randctx);
+            if (ret < 0)
+                return ret;
+
+            /* create colorram map and a c64 readable charset */
+            render_charset(avctx, charset, colram);
+
+            /* copy charset to buf */
+            memcpy(buf, charset, charset_size);
+
+            /* advance pointers */
+            buf      += charset_size;
+            req_size += charset_size;
+        }
+
+        /* write x frames to buf */
+        for (frame = 0; frame < c->mc_lifetime; frame++) {
+            /* copy charmap to buf. buf is uchar*, charmap is int*, so no memcpy here, sorry */
+            for (y = 0; y < b_height; y++) {
+                for (x = 0; x < b_width; x++) {
+                    buf[y * b_width + x] = charmap[y * b_width + x];
+                }
+            }
+            /* advance pointers */
+            buf += screen_size;
+            req_size += screen_size;
+
+            /* compress and copy colram to buf */
+            if (c->mc_use_5col) {
+                a64_compress_colram(buf, charmap, colram);
+                /* advance pointers */
+                buf += colram_size;
+                req_size += colram_size;
+            }
+
+            /* advance to next charmap */
+            charmap += 1000;
+        }
+
+        AV_WB32(avctx->extradata + 4,  c->mc_frame_counter);
+        AV_WB32(avctx->extradata + 8,  charset_size);
+        AV_WB32(avctx->extradata + 12, screen_size + colram_size);
+
+        /* reset counter */
+        c->mc_frame_counter = 0;
+
+        pkt->pts = pkt->dts = c->next_pts;
+        c->next_pts         = AV_NOPTS_VALUE;
+
+        av_assert0(pkt->size >= req_size);
+        pkt->size   = req_size;
+        pkt->flags |= AV_PKT_FLAG_KEY;
+        *got_packet = !!req_size;
+    }
+    return 0;
+}
+
+#if CONFIG_A64MULTI_ENCODER
+AVCodec ff_a64multi_encoder = {
+    .name           = "a64multi",
+    .long_name      = NULL_IF_CONFIG_SMALL("Multicolor charset for Commodore 64"),
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = AV_CODEC_ID_A64_MULTI,
+    .priv_data_size = sizeof(A64Context),
+    .init           = a64multi_encode_init,
+    .encode2        = a64multi_encode_frame,
+    .close          = a64multi_close_encoder,
+    .pix_fmts       = (const enum AVPixelFormat[]) {AV_PIX_FMT_GRAY8, AV_PIX_FMT_NONE},
+    .capabilities   = AV_CODEC_CAP_DELAY,
+};
+#endif
+#if CONFIG_A64MULTI5_ENCODER
+AVCodec ff_a64multi5_encoder = {
+    .name           = "a64multi5",
+    .long_name      = NULL_IF_CONFIG_SMALL("Multicolor charset for Commodore 64, extended with 5th color (colram)"),
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = AV_CODEC_ID_A64_MULTI5,
+    .priv_data_size = sizeof(A64Context),
+    .init           = a64multi_encode_init,
+    .encode2        = a64multi_encode_frame,
+    .close          = a64multi_close_encoder,
+    .pix_fmts       = (const enum AVPixelFormat[]) {AV_PIX_FMT_GRAY8, AV_PIX_FMT_NONE},
+    .capabilities   = AV_CODEC_CAP_DELAY,
+};
+#endif

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/a64tables.h

@@ -0,0 +1,150 @@
+/*
+ * a64 video encoder - tables used by a64 encoders
+ * Copyright (c) 2009 Tobias Bindhammer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * a64 video encoder - tables used by a64 encoders
+ */
+
+#ifndef AVCODEC_A64TABLES_H
+#define AVCODEC_A64TABLES_H
+
+#include <stdint.h>
+
+/**
+ * dither patterns used vor rendering the multicolor charset
+ */
+
+static const uint8_t multi_dither_patterns[9][4][4] = {
+    {
+     {0, 0, 0, 0},
+     {0, 0, 0, 0},
+     {0, 0, 0, 0},
+     {0, 0, 0, 0}
+     },
+    {
+     {1, 0, 0, 0},
+     {0, 0, 0, 0},
+     {0, 0, 1, 0},
+     {0, 0, 0, 0}
+     },
+    {
+     {1, 0, 0, 0},
+     {0, 0, 1, 0},
+     {0, 1, 0, 0},
+     {0, 0, 0, 1}
+     },
+    {
+     {1, 0, 0, 0},
+     {0, 1, 0, 1},
+     {0, 0, 1, 0},
+     {0, 1, 0, 1}
+     },
+    {
+     {1, 0, 1, 0},
+     {0, 1, 0, 1},
+     {1, 0, 1, 0},
+     {0, 1, 0, 1}
+     },
+    {
+     {1, 1, 1, 0},
+     {0, 1, 0, 1},
+     {1, 0, 1, 1},
+     {0, 1, 0, 1}
+     },
+    {
+     {0, 1, 1, 1},
+     {1, 1, 0, 1},
+     {1, 0, 1, 1},
+     {1, 1, 1, 0}
+     },
+    {
+     {0, 1, 1, 1},
+     {1, 1, 1, 1},
+     {1, 1, 0, 1},
+     {1, 1, 1, 1}
+     },
+    {
+     {1, 1, 1, 1},
+     {1, 1, 1, 1},
+     {1, 1, 1, 1},
+     {1, 1, 1, 1}
+     },
+};
+
+static const uint8_t interlaced_dither_patterns[9][8][4] = {
+    {
+     {0, 0, 0, 0}, {0, 0, 0, 0},
+     {0, 0, 0, 0}, {0, 0, 0, 0},
+     {0, 0, 0, 0}, {0, 0, 0, 0},
+     {0, 0, 0, 0}, {0, 0, 0, 0},
+     },
+    {
+     {1, 0, 1, 0}, {0, 0, 0, 0},
+     {0, 0, 0, 0}, {0, 0, 0, 0},
+     {1, 0, 1, 0}, {0, 0, 0, 0},
+     {0, 0, 0, 0}, {0, 0, 0, 0},
+     },
+    {
+     {1, 0, 1, 0}, {0, 0, 0, 0},
+     {0, 0, 0, 0}, {0, 1, 0, 1},
+     {1, 0, 1, 0}, {0, 0, 0, 0},
+     {0, 0, 0, 0}, {0, 1, 0, 1},
+     },
+    {
+     {1, 0, 1, 0}, {0, 1, 0, 1},
+     {0, 1, 0, 1}, {0, 0, 0, 0},
+     {1, 0, 1, 0}, {0, 1, 0, 1},
+     {0, 1, 0, 1}, {0, 0, 0, 0},
+     },
+    {
+     {1, 0, 1, 0}, {0, 1, 0, 1},
+     {0, 1, 0, 1}, {1, 0, 1, 0},
+     {1, 0, 1, 0}, {0, 1, 0, 1},
+     {0, 1, 0, 1}, {1, 0, 1, 0},
+     },
+    {
+     {1, 0, 1, 0}, {0, 1, 0, 1},
+     {1, 1, 1, 1}, {1, 0, 1, 0},
+     {1, 0, 1, 0}, {0, 1, 0, 1},
+     {1, 1, 1, 1}, {1, 0, 1, 0},
+     },
+    {
+     {1, 0, 1, 0}, {1, 1, 1, 1},
+     {1, 1, 1, 1}, {0, 1, 0, 1},
+     {1, 0, 1, 0}, {1, 1, 1, 1},
+     {1, 1, 1, 1}, {0, 1, 0, 1},
+     },
+    {
+     {1, 1, 1, 1}, {1, 1, 1, 1},
+     {1, 1, 1, 1}, {0, 1, 0, 1},
+     {1, 1, 1, 1}, {1, 1, 1, 1},
+     {1, 1, 1, 1}, {0, 1, 0, 1},
+     },
+    {
+     {1, 1, 1, 1}, {1, 1, 1, 1},
+     {1, 1, 1, 1}, {1, 1, 1, 1},
+     {1, 1, 1, 1}, {1, 1, 1, 1},
+     {1, 1, 1, 1}, {1, 1, 1, 1},
+     }
+};
+
+#endif /* AVCODEC_A64TABLES_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aac.h

@@ -0,0 +1,367 @@
+/*
+ * AAC definitions and structures
+ * Copyright (c) 2005-2006 Oded Shimon ( ods15 ods15 dyndns org )
+ * Copyright (c) 2006-2007 Maxim Gavrilov ( maxim.gavrilov gmail com )
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC definitions and structures
+ * @author Oded Shimon  ( ods15 ods15 dyndns org )
+ * @author Maxim Gavrilov ( maxim.gavrilov gmail com )
+ */
+
+#ifndef AVCODEC_AAC_H
+#define AVCODEC_AAC_H
+
+
+#include "aac_defines.h"
+#include "libavutil/float_dsp.h"
+#include "libavutil/fixed_dsp.h"
+#include "avcodec.h"
+#if !USE_FIXED
+#include "imdct15.h"
+#endif
+#include "fft.h"
+#include "mpeg4audio.h"
+#include "sbr.h"
+
+#include <stdint.h>
+
+#define MAX_CHANNELS 64
+#define MAX_ELEM_ID 16
+
+#define TNS_MAX_ORDER 20
+#define MAX_LTP_LONG_SFB 40
+
+#define CLIP_AVOIDANCE_FACTOR 0.95f
+
+enum RawDataBlockType {
+    TYPE_SCE,
+    TYPE_CPE,
+    TYPE_CCE,
+    TYPE_LFE,
+    TYPE_DSE,
+    TYPE_PCE,
+    TYPE_FIL,
+    TYPE_END,
+};
+
+enum ExtensionPayloadID {
+    EXT_FILL,
+    EXT_FILL_DATA,
+    EXT_DATA_ELEMENT,
+    EXT_DYNAMIC_RANGE = 0xb,
+    EXT_SBR_DATA      = 0xd,
+    EXT_SBR_DATA_CRC  = 0xe,
+};
+
+enum WindowSequence {
+    ONLY_LONG_SEQUENCE,
+    LONG_START_SEQUENCE,
+    EIGHT_SHORT_SEQUENCE,
+    LONG_STOP_SEQUENCE,
+};
+
+enum BandType {
+    ZERO_BT        = 0,     ///< Scalefactors and spectral data are all zero.
+    FIRST_PAIR_BT  = 5,     ///< This and later band types encode two values (rather than four) with one code word.
+    ESC_BT         = 11,    ///< Spectral data are coded with an escape sequence.
+    RESERVED_BT    = 12,    ///< Band types following are encoded differently from others.
+    NOISE_BT       = 13,    ///< Spectral data are scaled white noise not coded in the bitstream.
+    INTENSITY_BT2  = 14,    ///< Scalefactor data are intensity stereo positions (out of phase).
+    INTENSITY_BT   = 15,    ///< Scalefactor data are intensity stereo positions (in phase).
+};
+
+#define IS_CODEBOOK_UNSIGNED(x) (((x) - 1) & 10)
+
+enum ChannelPosition {
+    AAC_CHANNEL_OFF   = 0,
+    AAC_CHANNEL_FRONT = 1,
+    AAC_CHANNEL_SIDE  = 2,
+    AAC_CHANNEL_BACK  = 3,
+    AAC_CHANNEL_LFE   = 4,
+    AAC_CHANNEL_CC    = 5,
+};
+
+/**
+ * The point during decoding at which channel coupling is applied.
+ */
+enum CouplingPoint {
+    BEFORE_TNS,
+    BETWEEN_TNS_AND_IMDCT,
+    AFTER_IMDCT = 3,
+};
+
+/**
+ * Output configuration status
+ */
+enum OCStatus {
+    OC_NONE,        ///< Output unconfigured
+    OC_TRIAL_PCE,   ///< Output configuration under trial specified by an inband PCE
+    OC_TRIAL_FRAME, ///< Output configuration under trial specified by a frame header
+    OC_GLOBAL_HDR,  ///< Output configuration set in a global header but not yet locked
+    OC_LOCKED,      ///< Output configuration locked in place
+};
+
+typedef struct OutputConfiguration {
+    MPEG4AudioConfig m4ac;
+    uint8_t layout_map[MAX_ELEM_ID*4][3];
+    int layout_map_tags;
+    int channels;
+    uint64_t channel_layout;
+    enum OCStatus status;
+} OutputConfiguration;
+
+/**
+ * Predictor State
+ */
+typedef struct PredictorState {
+    AAC_FLOAT cor0;
+    AAC_FLOAT cor1;
+    AAC_FLOAT var0;
+    AAC_FLOAT var1;
+    AAC_FLOAT r0;
+    AAC_FLOAT r1;
+    AAC_FLOAT k1;
+    AAC_FLOAT x_est;
+} PredictorState;
+
+#define MAX_PREDICTORS 672
+
+#define SCALE_DIV_512    36    ///< scalefactor difference that corresponds to scale difference in 512 times
+#define SCALE_ONE_POS   140    ///< scalefactor index that corresponds to scale=1.0
+#define SCALE_MAX_POS   255    ///< scalefactor index maximum value
+#define SCALE_MAX_DIFF   60    ///< maximum scalefactor difference allowed by standard
+#define SCALE_DIFF_ZERO  60    ///< codebook index corresponding to zero scalefactor indices difference
+
+#define NOISE_PRE       256    ///< preamble for NOISE_BT, put in bitstream with the first noise band
+#define NOISE_PRE_BITS    9    ///< length of preamble
+#define NOISE_OFFSET     90    ///< subtracted from global gain, used as offset for the preamble
+
+/**
+ * Long Term Prediction
+ */
+typedef struct LongTermPrediction {
+    int8_t present;
+    int16_t lag;
+    INTFLOAT coef;
+    int8_t used[MAX_LTP_LONG_SFB];
+} LongTermPrediction;
+
+/**
+ * Individual Channel Stream
+ */
+typedef struct IndividualChannelStream {
+    uint8_t max_sfb;            ///< number of scalefactor bands per group
+    enum WindowSequence window_sequence[2];
+    uint8_t use_kb_window[2];   ///< If set, use Kaiser-Bessel window, otherwise use a sine window.
+    int num_window_groups;
+    uint8_t group_len[8];
+    LongTermPrediction ltp;
+    const uint16_t *swb_offset; ///< table of offsets to the lowest spectral coefficient of a scalefactor band, sfb, for a particular window
+    const uint8_t *swb_sizes;   ///< table of scalefactor band sizes for a particular window
+    int num_swb;                ///< number of scalefactor window bands
+    int num_windows;
+    int tns_max_bands;
+    int predictor_present;
+    int predictor_initialized;
+    int predictor_reset_group;
+    int predictor_reset_count[31];  ///< used by encoder to count prediction resets
+    uint8_t prediction_used[41];
+    uint8_t window_clipping[8]; ///< set if a certain window is near clipping
+    float clip_avoidance_factor; ///< set if any window is near clipping to the necessary atennuation factor to avoid it
+} IndividualChannelStream;
+
+/**
+ * Temporal Noise Shaping
+ */
+typedef struct TemporalNoiseShaping {
+    int present;
+    int n_filt[8];
+    int length[8][4];
+    int direction[8][4];
+    int order[8][4];
+    int coef_idx[8][4][TNS_MAX_ORDER];
+    INTFLOAT coef[8][4][TNS_MAX_ORDER];
+} TemporalNoiseShaping;
+
+/**
+ * Dynamic Range Control - decoded from the bitstream but not processed further.
+ */
+typedef struct DynamicRangeControl {
+    int pce_instance_tag;                           ///< Indicates with which program the DRC info is associated.
+    int dyn_rng_sgn[17];                            ///< DRC sign information; 0 - positive, 1 - negative
+    int dyn_rng_ctl[17];                            ///< DRC magnitude information
+    int exclude_mask[MAX_CHANNELS];                 ///< Channels to be excluded from DRC processing.
+    int band_incr;                                  ///< Number of DRC bands greater than 1 having DRC info.
+    int interpolation_scheme;                       ///< Indicates the interpolation scheme used in the SBR QMF domain.
+    int band_top[17];                               ///< Indicates the top of the i-th DRC band in units of 4 spectral lines.
+    int prog_ref_level;                             /**< A reference level for the long-term program audio level for all
+                                                     *   channels combined.
+                                                     */
+} DynamicRangeControl;
+
+typedef struct Pulse {
+    int num_pulse;
+    int start;
+    int pos[4];
+    int amp[4];
+} Pulse;
+
+/**
+ * coupling parameters
+ */
+typedef struct ChannelCoupling {
+    enum CouplingPoint coupling_point;  ///< The point during decoding at which coupling is applied.
+    int num_coupled;       ///< number of target elements
+    enum RawDataBlockType type[8];   ///< Type of channel element to be coupled - SCE or CPE.
+    int id_select[8];      ///< element id
+    int ch_select[8];      /**< [0] shared list of gains; [1] list of gains for right channel;
+                            *   [2] list of gains for left channel; [3] lists of gains for both channels
+                            */
+    INTFLOAT gain[16][120];
+} ChannelCoupling;
+
+/**
+ * Single Channel Element - used for both SCE and LFE elements.
+ */
+typedef struct SingleChannelElement {
+    IndividualChannelStream ics;
+    TemporalNoiseShaping tns;
+    Pulse pulse;
+    enum BandType band_type[128];                   ///< band types
+    enum BandType band_alt[128];                    ///< alternative band type (used by encoder)
+    int band_type_run_end[120];                     ///< band type run end points
+    INTFLOAT sf[120];                               ///< scalefactors
+    int sf_idx[128];                                ///< scalefactor indices (used by encoder)
+    uint8_t zeroes[128];                            ///< band is not coded (used by encoder)
+    float  is_ener[128];                            ///< Intensity stereo pos (used by encoder)
+    float pns_ener[128];                            ///< Noise energy values (used by encoder)
+    DECLARE_ALIGNED(32, INTFLOAT, pcoeffs)[1024];   ///< coefficients for IMDCT, pristine
+    DECLARE_ALIGNED(32, INTFLOAT, coeffs)[1024];    ///< coefficients for IMDCT, maybe processed
+    DECLARE_ALIGNED(32, INTFLOAT, saved)[1536];     ///< overlap
+    DECLARE_ALIGNED(32, INTFLOAT, ret_buf)[2048];   ///< PCM output buffer
+    DECLARE_ALIGNED(16, INTFLOAT, ltp_state)[3072]; ///< time signal for LTP
+    DECLARE_ALIGNED(32, AAC_FLOAT, prcoeffs)[1024]; ///< Main prediction coefs (used by encoder)
+    PredictorState predictor_state[MAX_PREDICTORS];
+    INTFLOAT *ret;                                  ///< PCM output
+} SingleChannelElement;
+
+/**
+ * channel element - generic struct for SCE/CPE/CCE/LFE
+ */
+typedef struct ChannelElement {
+    int present;
+    // CPE specific
+    int common_window;        ///< Set if channels share a common 'IndividualChannelStream' in bitstream.
+    int     ms_mode;          ///< Signals mid/side stereo flags coding mode (used by encoder)
+    uint8_t is_mode;          ///< Set if any bands have been encoded using intensity stereo (used by encoder)
+    uint8_t ms_mask[128];     ///< Set if mid/side stereo is used for each scalefactor window band
+    uint8_t is_mask[128];     ///< Set if intensity stereo is used (used by encoder)
+    // shared
+    SingleChannelElement ch[2];
+    // CCE specific
+    ChannelCoupling coup;
+    SpectralBandReplication sbr;
+} ChannelElement;
+
+/**
+ * main AAC context
+ */
+struct AACContext {
+    AVClass        *class;
+    AVCodecContext *avctx;
+    AVFrame *frame;
+
+    int is_saved;                 ///< Set if elements have stored overlap from previous frame.
+    DynamicRangeControl che_drc;
+
+    /**
+     * @name Channel element related data
+     * @{
+     */
+    ChannelElement          *che[4][MAX_ELEM_ID];
+    ChannelElement  *tag_che_map[4][MAX_ELEM_ID];
+    int tags_mapped;
+    int warned_remapping_once;
+    /** @} */
+
+    /**
+     * @name temporary aligned temporary buffers
+     * (We do not want to have these on the stack.)
+     * @{
+     */
+    DECLARE_ALIGNED(32, INTFLOAT, buf_mdct)[1024];
+    /** @} */
+
+    /**
+     * @name Computed / set up during initialization
+     * @{
+     */
+    FFTContext mdct;
+    FFTContext mdct_small;
+    FFTContext mdct_ld;
+    FFTContext mdct_ltp;
+#if USE_FIXED
+    AVFixedDSPContext *fdsp;
+#else
+    IMDCT15Context *mdct480;
+    AVFloatDSPContext *fdsp;
+#endif /* USE_FIXED */
+    int random_state;
+    /** @} */
+
+    /**
+     * @name Members used for output
+     * @{
+     */
+    SingleChannelElement *output_element[MAX_CHANNELS]; ///< Points to each SingleChannelElement
+    /** @} */
+
+
+    /**
+     * @name Japanese DTV specific extension
+     * @{
+     */
+    int force_dmono_mode;///< 0->not dmono, 1->use first channel, 2->use second channel
+    int dmono_mode;      ///< 0->not dmono, 1->use first channel, 2->use second channel
+    /** @} */
+
+    DECLARE_ALIGNED(32, INTFLOAT, temp)[128];
+
+    OutputConfiguration oc[2];
+    int warned_num_aac_frames;
+
+    /* aacdec functions pointers */
+    void (*imdct_and_windowing)(AACContext *ac, SingleChannelElement *sce);
+    void (*apply_ltp)(AACContext *ac, SingleChannelElement *sce);
+    void (*apply_tns)(INTFLOAT coef[1024], TemporalNoiseShaping *tns,
+                      IndividualChannelStream *ics, int decode);
+    void (*windowing_and_mdct_ltp)(AACContext *ac, INTFLOAT *out,
+                                   INTFLOAT *in, IndividualChannelStream *ics);
+    void (*update_ltp)(AACContext *ac, SingleChannelElement *sce);
+    void (*vector_pow43)(int *coefs, int len);
+    void (*subband_scale)(int *dst, int *src, int scale, int offset, int len);
+
+};
+
+void ff_aacdec_init_mips(AACContext *c);
+
+#endif /* AVCODEC_AAC_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aac_ac3_parser.c

@@ -0,0 +1,114 @@
+/*
+ * Common AAC and AC-3 parser
+ * Copyright (c) 2003 Fabrice Bellard
+ * Copyright (c) 2003 Michael Niedermayer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/channel_layout.h"
+#include "libavutil/common.h"
+#include "parser.h"
+#include "aac_ac3_parser.h"
+
+int ff_aac_ac3_parse(AVCodecParserContext *s1,
+                     AVCodecContext *avctx,
+                     const uint8_t **poutbuf, int *poutbuf_size,
+                     const uint8_t *buf, int buf_size)
+{
+    AACAC3ParseContext *s = s1->priv_data;
+    ParseContext *pc = &s->pc;
+    int len, i;
+    int new_frame_start;
+
+get_next:
+    i=END_NOT_FOUND;
+    if(s->remaining_size <= buf_size){
+        if(s->remaining_size && !s->need_next_header){
+            i= s->remaining_size;
+            s->remaining_size = 0;
+        }else{ //we need a header first
+            len=0;
+            for(i=s->remaining_size; i<buf_size; i++){
+                s->state = (s->state<<8) + buf[i];
+                if((len=s->sync(s->state, s, &s->need_next_header, &new_frame_start)))
+                    break;
+            }
+            if(len<=0){
+                i=END_NOT_FOUND;
+            }else{
+                s->state=0;
+                i-= s->header_size -1;
+                s->remaining_size = len;
+                if(!new_frame_start || pc->index+i<=0){
+                    s->remaining_size += i;
+                    goto get_next;
+                }
+            }
+        }
+    }
+
+    if(ff_combine_frame(pc, i, &buf, &buf_size)<0){
+        s->remaining_size -= FFMIN(s->remaining_size, buf_size);
+        *poutbuf = NULL;
+        *poutbuf_size = 0;
+        return buf_size;
+    }
+
+    *poutbuf = buf;
+    *poutbuf_size = buf_size;
+
+    /* update codec info */
+    if(s->codec_id)
+        avctx->codec_id = s->codec_id;
+
+    /* Due to backwards compatible HE-AAC the sample rate, channel count,
+       and total number of samples found in an AAC ADTS header are not
+       reliable. Bit rate is still accurate because the total frame duration in
+       seconds is still correct (as is the number of bits in the frame). */
+    if (avctx->codec_id != AV_CODEC_ID_AAC) {
+        avctx->sample_rate = s->sample_rate;
+
+        /* (E-)AC-3: allow downmixing to stereo or mono */
+#if FF_API_REQUEST_CHANNELS
+FF_DISABLE_DEPRECATION_WARNINGS
+        if (avctx->request_channels == 1)
+            avctx->request_channel_layout = AV_CH_LAYOUT_MONO;
+        else if (avctx->request_channels == 2)
+            avctx->request_channel_layout = AV_CH_LAYOUT_STEREO;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+        if (s->channels > 1 &&
+            avctx->request_channel_layout == AV_CH_LAYOUT_MONO) {
+            avctx->channels       = 1;
+            avctx->channel_layout = AV_CH_LAYOUT_MONO;
+        } else if (s->channels > 2 &&
+                   avctx->request_channel_layout == AV_CH_LAYOUT_STEREO) {
+            avctx->channels       = 2;
+            avctx->channel_layout = AV_CH_LAYOUT_STEREO;
+        } else {
+            avctx->channels = s->channels;
+            avctx->channel_layout = s->channel_layout;
+        }
+        s1->duration = s->samples;
+        avctx->audio_service_type = s->service_type;
+    }
+
+    avctx->bit_rate = s->bit_rate;
+
+    return i;
+}

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aac_ac3_parser.h

@@ -0,0 +1,66 @@
+/*
+ * Common AAC and AC-3 parser prototypes
+ * Copyright (c) 2003 Fabrice Bellard
+ * Copyright (c) 2003 Michael Niedermayer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AAC_AC3_PARSER_H
+#define AVCODEC_AAC_AC3_PARSER_H
+
+#include <stdint.h>
+#include "avcodec.h"
+#include "parser.h"
+
+typedef enum {
+    AAC_AC3_PARSE_ERROR_SYNC        = -0x1030c0a,
+    AAC_AC3_PARSE_ERROR_BSID        = -0x2030c0a,
+    AAC_AC3_PARSE_ERROR_SAMPLE_RATE = -0x3030c0a,
+    AAC_AC3_PARSE_ERROR_FRAME_SIZE  = -0x4030c0a,
+    AAC_AC3_PARSE_ERROR_FRAME_TYPE  = -0x5030c0a,
+    AAC_AC3_PARSE_ERROR_CRC         = -0x6030c0a,
+    AAC_AC3_PARSE_ERROR_CHANNEL_CFG = -0x7030c0a,
+} AACAC3ParseError;
+
+typedef struct AACAC3ParseContext {
+    ParseContext pc;
+    int frame_size;
+    int header_size;
+    int (*sync)(uint64_t state, struct AACAC3ParseContext *hdr_info,
+            int *need_next_header, int *new_frame_start);
+
+    int channels;
+    int sample_rate;
+    int bit_rate;
+    int samples;
+    uint64_t channel_layout;
+    int service_type;
+
+    int remaining_size;
+    uint64_t state;
+
+    int need_next_header;
+    enum AVCodecID codec_id;
+} AACAC3ParseContext;
+
+int ff_aac_ac3_parse(AVCodecParserContext *s1,
+                     AVCodecContext *avctx,
+                     const uint8_t **poutbuf, int *poutbuf_size,
+                     const uint8_t *buf, int buf_size);
+
+#endif /* AVCODEC_AAC_AC3_PARSER_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aac_adtstoasc_bsf.c

@@ -0,0 +1,123 @@
+/*
+ * MPEG-2/4 AAC ADTS to MPEG-4 Audio Specific Configuration bitstream filter
+ * Copyright (c) 2009 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "avcodec.h"
+#include "aacadtsdec.h"
+#include "put_bits.h"
+#include "get_bits.h"
+#include "mpeg4audio.h"
+#include "internal.h"
+
+typedef struct AACBSFContext {
+    int first_frame_done;
+} AACBSFContext;
+
+/**
+ * This filter creates an MPEG-4 AudioSpecificConfig from an MPEG-2/4
+ * ADTS header and removes the ADTS header.
+ */
+static int aac_adtstoasc_filter(AVBitStreamFilterContext *bsfc,
+                                AVCodecContext *avctx, const char *args,
+                                uint8_t  **poutbuf, int *poutbuf_size,
+                                const uint8_t *buf, int      buf_size,
+                                int keyframe)
+{
+    GetBitContext gb;
+    PutBitContext pb;
+    AACADTSHeaderInfo hdr;
+
+    AACBSFContext *ctx = bsfc->priv_data;
+
+    init_get_bits(&gb, buf, AAC_ADTS_HEADER_SIZE*8);
+
+    *poutbuf = (uint8_t*) buf;
+    *poutbuf_size = buf_size;
+
+    if (avctx->extradata)
+        if (show_bits(&gb, 12) != 0xfff)
+            return 0;
+
+    if (avpriv_aac_parse_header(&gb, &hdr) < 0) {
+        av_log(avctx, AV_LOG_ERROR, "Error parsing ADTS frame header!\n");
+        return AVERROR_INVALIDDATA;
+    }
+
+    if (!hdr.crc_absent && hdr.num_aac_frames > 1) {
+        avpriv_report_missing_feature(avctx,
+                                      "Multiple RDBs per frame with CRC");
+        return AVERROR_PATCHWELCOME;
+    }
+
+    buf      += AAC_ADTS_HEADER_SIZE + 2*!hdr.crc_absent;
+    buf_size -= AAC_ADTS_HEADER_SIZE + 2*!hdr.crc_absent;
+
+    if (!ctx->first_frame_done) {
+        int            pce_size = 0;
+        uint8_t        pce_data[MAX_PCE_SIZE];
+        if (!hdr.chan_config) {
+            init_get_bits(&gb, buf, buf_size * 8);
+            if (get_bits(&gb, 3) != 5) {
+                avpriv_report_missing_feature(avctx,
+                                              "PCE-based channel configuration "
+                                              "without PCE as first syntax "
+                                              "element");
+                return AVERROR_PATCHWELCOME;
+            }
+            init_put_bits(&pb, pce_data, MAX_PCE_SIZE);
+            pce_size = avpriv_copy_pce_data(&pb, &gb)/8;
+            flush_put_bits(&pb);
+            buf_size -= get_bits_count(&gb)/8;
+            buf      += get_bits_count(&gb)/8;
+        }
+        av_free(avctx->extradata);
+        avctx->extradata_size = 2 + pce_size;
+        avctx->extradata = av_mallocz(avctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
+        if (!avctx->extradata) {
+            avctx->extradata_size = 0;
+            return AVERROR(ENOMEM);
+        }
+
+        init_put_bits(&pb, avctx->extradata, avctx->extradata_size);
+        put_bits(&pb, 5, hdr.object_type);
+        put_bits(&pb, 4, hdr.sampling_index);
+        put_bits(&pb, 4, hdr.chan_config);
+        put_bits(&pb, 1, 0); //frame length - 1024 samples
+        put_bits(&pb, 1, 0); //does not depend on core coder
+        put_bits(&pb, 1, 0); //is not extension
+        flush_put_bits(&pb);
+        if (pce_size) {
+            memcpy(avctx->extradata + 2, pce_data, pce_size);
+        }
+
+        ctx->first_frame_done = 1;
+    }
+
+    *poutbuf = (uint8_t*) buf;
+    *poutbuf_size = buf_size;
+
+    return 0;
+}
+
+AVBitStreamFilter ff_aac_adtstoasc_bsf = {
+    .name           = "aac_adtstoasc",
+    .priv_data_size = sizeof(AACBSFContext),
+    .filter         = aac_adtstoasc_filter,
+};

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aac_defines.h

@@ -0,0 +1,114 @@
+/*
+ * AAC defines
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AAC_DEFINES_H
+#define AVCODEC_AAC_DEFINES_H
+
+#ifndef USE_FIXED
+#define USE_FIXED 0
+#endif
+
+#if USE_FIXED
+
+#include "libavutil/softfloat.h"
+
+#define FFT_FLOAT    0
+#define FFT_FIXED_32 1
+
+#define AAC_RENAME(x)       x ## _fixed
+#define AAC_RENAME_32(x)    x ## _fixed_32
+#define INTFLOAT int
+#define INT64FLOAT          int64_t
+#define SHORTFLOAT int16_t
+#define AAC_FLOAT SoftFloat
+#define AAC_SIGNE           int
+#define FIXR(a)             ((int)((a) * 1 + 0.5))
+#define FIXR10(a)           ((int)((a) * 1024.0 + 0.5))
+#define Q23(a)              (int)((a) * 8388608.0 + 0.5)
+#define Q30(x)              (int)((x)*1073741824.0 + 0.5)
+#define Q31(x)              (int)((x)*2147483648.0 + 0.5)
+#define RANGE15(x)          x
+#define GET_GAIN(x, y)      (-(y) << (x)) + 1024
+#define AAC_MUL16(x, y)     (int)(((int64_t)(x) * (y) + 0x8000) >> 16)
+#define AAC_MUL26(x, y)     (int)(((int64_t)(x) * (y) + 0x2000000) >> 26)
+#define AAC_MUL30(x, y)     (int)(((int64_t)(x) * (y) + 0x20000000) >> 30)
+#define AAC_MUL31(x, y)     (int)(((int64_t)(x) * (y) + 0x40000000) >> 31)
+#define AAC_MADD28(x, y, a, b) (int)((((int64_t)(x) * (y)) + \
+                                      ((int64_t)(a) * (b)) + \
+                                        0x8000000) >> 28)
+#define AAC_MADD30(x, y, a, b) (int)((((int64_t)(x) * (y)) + \
+                                      ((int64_t)(a) * (b)) + \
+                                        0x20000000) >> 30)
+#define AAC_MADD30_V8(x, y, a, b, c, d, e, f) (int)((((int64_t)(x) * (y)) + \
+                                                     ((int64_t)(a) * (b)) + \
+                                                     ((int64_t)(c) * (d)) + \
+                                                     ((int64_t)(e) * (f)) + \
+                                                       0x20000000) >> 30)
+#define AAC_MSUB30(x, y, a, b) (int)((((int64_t)(x) * (y)) - \
+                                      ((int64_t)(a) * (b)) + \
+                                        0x20000000) >> 30)
+#define AAC_MSUB30_V8(x, y, a, b, c, d, e, f) (int)((((int64_t)(x) * (y)) + \
+                                                     ((int64_t)(a) * (b)) - \
+                                                     ((int64_t)(c) * (d)) - \
+                                                     ((int64_t)(e) * (f)) + \
+                                                       0x20000000) >> 30)
+#define AAC_MSUB31_V3(x, y, z)    (int)((((int64_t)(x) * (z)) - \
+                                      ((int64_t)(y) * (z)) + \
+                                        0x40000000) >> 31)
+#define AAC_HALF_SUM(x, y)  (x) >> 1 + (y) >> 1
+#define AAC_SRA_R(x, y)     (int)(((x) + (1 << ((y) - 1))) >> (y))
+
+#else
+
+#define FFT_FLOAT    1
+#define FFT_FIXED_32 0
+
+#define AAC_RENAME(x)       x
+#define AAC_RENAME_32(x)    x
+#define INTFLOAT float
+#define INT64FLOAT          float
+#define SHORTFLOAT float
+#define AAC_FLOAT float
+#define AAC_SIGNE           unsigned
+#define FIXR(x)             ((float)(x))
+#define FIXR10(x)           ((float)(x))
+#define Q23(x)              x
+#define Q30(x)              x
+#define Q31(x)              x
+#define RANGE15(x)          (32768.0 * (x))
+#define GET_GAIN(x, y)      powf((x), -(y))
+#define AAC_MUL16(x, y)     ((x) * (y))
+#define AAC_MUL26(x, y)     ((x) * (y))
+#define AAC_MUL30(x, y)     ((x) * (y))
+#define AAC_MUL31(x, y)     ((x) * (y))
+#define AAC_MADD28(x, y, a, b) ((x) * (y) + (a) * (b))
+#define AAC_MADD30(x, y, a, b) ((x) * (y) + (a) * (b))
+#define AAC_MADD30_V8(x, y, a, b, c, d, e, f) ((x) * (y) + (a) * (b) + \
+                                               (c) * (d) + (e) * (f))
+#define AAC_MSUB30(x, y, a, b) ((x) * (y) - (a) * (b))
+#define AAC_MSUB30_V8(x, y, a, b, c, d, e, f) ((x) * (y) + (a) * (b) - \
+                                               (c) * (d) - (e) * (f))
+#define AAC_MSUB31_V3(x, y, z)    ((x) - (y)) * (z)
+#define AAC_HALF_SUM(x, y)  ((x) + (y)) * 0.5f
+#define AAC_SRA_R(x, y)     (x)
+
+#endif /* USE_FIXED */
+
+#endif /* AVCODEC_AAC_DEFINES_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aac_parser.c

@@ -0,0 +1,69 @@
+/*
+ * Audio and Video frame extraction
+ * Copyright (c) 2003 Fabrice Bellard
+ * Copyright (c) 2003 Michael Niedermayer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "parser.h"
+#include "aac_ac3_parser.h"
+#include "aacadtsdec.h"
+#include "get_bits.h"
+#include "mpeg4audio.h"
+
+static int aac_sync(uint64_t state, AACAC3ParseContext *hdr_info,
+        int *need_next_header, int *new_frame_start)
+{
+    GetBitContext bits;
+    AACADTSHeaderInfo hdr;
+    int size;
+    union {
+        uint64_t u64;
+        uint8_t  u8[8 + AV_INPUT_BUFFER_PADDING_SIZE];
+    } tmp;
+
+    tmp.u64 = av_be2ne64(state);
+    init_get_bits(&bits, tmp.u8+8-AAC_ADTS_HEADER_SIZE, AAC_ADTS_HEADER_SIZE * 8);
+
+    if ((size = avpriv_aac_parse_header(&bits, &hdr)) < 0)
+        return 0;
+    *need_next_header = 0;
+    *new_frame_start  = 1;
+    hdr_info->sample_rate = hdr.sample_rate;
+    hdr_info->channels    = ff_mpeg4audio_channels[hdr.chan_config];
+    hdr_info->samples     = hdr.samples;
+    hdr_info->bit_rate    = hdr.bit_rate;
+    return size;
+}
+
+static av_cold int aac_parse_init(AVCodecParserContext *s1)
+{
+    AACAC3ParseContext *s = s1->priv_data;
+    s->header_size = AAC_ADTS_HEADER_SIZE;
+    s->sync = aac_sync;
+    return 0;
+}
+
+
+AVCodecParser ff_aac_parser = {
+    .codec_ids      = { AV_CODEC_ID_AAC },
+    .priv_data_size = sizeof(AACAC3ParseContext),
+    .parser_init    = aac_parse_init,
+    .parser_parse   = ff_aac_ac3_parse,
+    .parser_close   = ff_parse_close,
+};

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aac_tablegen.c

@@ -0,0 +1,39 @@
+/*
+ * Generate a header file for hardcoded AAC tables
+ *
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdlib.h>
+#define CONFIG_HARDCODED_TABLES 0
+#include "aac_tablegen.h"
+#include "tableprint.h"
+
+int main(void)
+{
+    ff_aac_tableinit();
+
+    write_fileheader();
+
+    WRITE_ARRAY("const", float, ff_aac_pow2sf_tab);
+
+    WRITE_ARRAY("const", float, ff_aac_pow34sf_tab);
+
+    return 0;
+}

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aac_tablegen.h

@@ -0,0 +1,45 @@
+/*
+ * Header file for hardcoded AAC tables
+ *
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AAC_TABLEGEN_H
+#define AVCODEC_AAC_TABLEGEN_H
+
+#include "aac_tablegen_decl.h"
+
+#if CONFIG_HARDCODED_TABLES
+#include "libavcodec/aac_tables.h"
+#else
+#include "libavutil/mathematics.h"
+float ff_aac_pow2sf_tab[428];
+float ff_aac_pow34sf_tab[428];
+
+av_cold void ff_aac_tableinit(void)
+{
+    int i;
+    for (i = 0; i < 428; i++) {
+        ff_aac_pow2sf_tab[i] = pow(2, (i - POW_SF2_ZERO) / 4.0);
+        ff_aac_pow34sf_tab[i] = pow(ff_aac_pow2sf_tab[i], 3.0/4.0);
+    }
+}
+#endif /* CONFIG_HARDCODED_TABLES */
+
+#endif /* AVCODEC_AAC_TABLEGEN_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aac_tablegen_decl.h

@@ -0,0 +1,38 @@
+/*
+ * Header file for hardcoded AAC tables
+ *
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AAC_TABLEGEN_DECL_H
+#define AVCODEC_AAC_TABLEGEN_DECL_H
+
+#define POW_SF2_ZERO    200    ///< ff_aac_pow2sf_tab index corresponding to pow(2, 0);
+
+#if CONFIG_HARDCODED_TABLES
+#define ff_aac_tableinit()
+extern const float ff_aac_pow2sf_tab[428];
+extern const float ff_aac_pow34sf_tab[428];
+#else
+void ff_aac_tableinit(void);
+extern       float ff_aac_pow2sf_tab[428];
+extern       float ff_aac_pow34sf_tab[428];
+#endif /* CONFIG_HARDCODED_TABLES */
+
+#endif /* AVCODEC_AAC_TABLEGEN_DECL_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacadtsdec.c

@@ -0,0 +1,70 @@
+/*
+ * Audio and Video frame extraction
+ * Copyright (c) 2003 Fabrice Bellard
+ * Copyright (c) 2003 Michael Niedermayer
+ * Copyright (c) 2009 Alex Converse
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "aac_ac3_parser.h"
+#include "aacadtsdec.h"
+#include "get_bits.h"
+#include "mpeg4audio.h"
+
+int avpriv_aac_parse_header(GetBitContext *gbc, AACADTSHeaderInfo *hdr)
+{
+    int size, rdb, ch, sr;
+    int aot, crc_abs;
+
+    if (get_bits(gbc, 12) != 0xfff)
+        return AAC_AC3_PARSE_ERROR_SYNC;
+
+    skip_bits1(gbc);             /* id */
+    skip_bits(gbc, 2);           /* layer */
+    crc_abs = get_bits1(gbc);    /* protection_absent */
+    aot     = get_bits(gbc, 2);  /* profile_objecttype */
+    sr      = get_bits(gbc, 4);  /* sample_frequency_index */
+    if (!avpriv_mpeg4audio_sample_rates[sr])
+        return AAC_AC3_PARSE_ERROR_SAMPLE_RATE;
+    skip_bits1(gbc);             /* private_bit */
+    ch = get_bits(gbc, 3);       /* channel_configuration */
+
+    skip_bits1(gbc);             /* original/copy */
+    skip_bits1(gbc);             /* home */
+
+    /* adts_variable_header */
+    skip_bits1(gbc);             /* copyright_identification_bit */
+    skip_bits1(gbc);             /* copyright_identification_start */
+    size = get_bits(gbc, 13);    /* aac_frame_length */
+    if (size < AAC_ADTS_HEADER_SIZE)
+        return AAC_AC3_PARSE_ERROR_FRAME_SIZE;
+
+    skip_bits(gbc, 11);          /* adts_buffer_fullness */
+    rdb = get_bits(gbc, 2);      /* number_of_raw_data_blocks_in_frame */
+
+    hdr->object_type    = aot + 1;
+    hdr->chan_config    = ch;
+    hdr->crc_absent     = crc_abs;
+    hdr->num_aac_frames = rdb + 1;
+    hdr->sampling_index = sr;
+    hdr->sample_rate    = avpriv_mpeg4audio_sample_rates[sr];
+    hdr->samples        = (rdb + 1) * 1024;
+    hdr->bit_rate       = size * 8 * hdr->sample_rate / hdr->samples;
+
+    return size;
+}

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacadtsdec.h

@@ -0,0 +1,54 @@
+/*
+ * AAC ADTS header decoding prototypes and structures
+ * Copyright (c) 2003 Fabrice Bellard
+ * Copyright (c) 2003 Michael Niedermayer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AACADTSDEC_H
+#define AVCODEC_AACADTSDEC_H
+
+#include <stdint.h>
+#include "get_bits.h"
+
+#define AAC_ADTS_HEADER_SIZE 7
+
+typedef struct AACADTSHeaderInfo {
+    uint32_t sample_rate;
+    uint32_t samples;
+    uint32_t bit_rate;
+    uint8_t  crc_absent;
+    uint8_t  object_type;
+    uint8_t  sampling_index;
+    uint8_t  chan_config;
+    uint8_t  num_aac_frames;
+} AACADTSHeaderInfo;
+
+/**
+ * Parse AAC frame header.
+ * Parse the ADTS frame header to the end of the variable header, which is
+ * the first 54 bits.
+ * @param[in]  gbc BitContext containing the first 54 bits of the frame.
+ * @param[out] hdr Pointer to struct where header info is written.
+ * @return Returns 0 on success, -1 if there is a sync word mismatch,
+ * -2 if the version element is invalid, -3 if the sample rate
+ * element is invalid, or -4 if the bit rate element is invalid.
+ */
+int avpriv_aac_parse_header(GetBitContext *gbc, AACADTSHeaderInfo *hdr);
+
+#endif /* AVCODEC_AACADTSDEC_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacdec.c

@@ -0,0 +1,581 @@
+/*
+ * AAC decoder
+ * Copyright (c) 2005-2006 Oded Shimon ( ods15 ods15 dyndns org )
+ * Copyright (c) 2006-2007 Maxim Gavrilov ( maxim.gavrilov gmail com )
+ * Copyright (c) 2008-2013 Alex Converse <alex.converse@gmail.com>
+ *
+ * AAC LATM decoder
+ * Copyright (c) 2008-2010 Paul Kendall <paul@kcbbs.gen.nz>
+ * Copyright (c) 2010      Janne Grunau <janne-libav@jannau.net>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC decoder
+ * @author Oded Shimon  ( ods15 ods15 dyndns org )
+ * @author Maxim Gavrilov ( maxim.gavrilov gmail com )
+ */
+
+#define FFT_FLOAT 1
+#define FFT_FIXED_32 0
+#define USE_FIXED 0
+
+#include "libavutil/float_dsp.h"
+#include "libavutil/opt.h"
+#include "avcodec.h"
+#include "internal.h"
+#include "get_bits.h"
+#include "fft.h"
+#include "imdct15.h"
+#include "lpc.h"
+#include "kbdwin.h"
+#include "sinewin.h"
+
+#include "aac.h"
+#include "aactab.h"
+#include "aacdectab.h"
+#include "cbrt_tablegen.h"
+#include "sbr.h"
+#include "aacsbr.h"
+#include "mpeg4audio.h"
+#include "aacadtsdec.h"
+#include "libavutil/intfloat.h"
+
+#include <errno.h>
+#include <math.h>
+#include <stdint.h>
+#include <string.h>
+
+#if ARCH_ARM
+#   include "arm/aac.h"
+#elif ARCH_MIPS
+#   include "mips/aacdec_mips.h"
+#endif
+
+static av_always_inline void reset_predict_state(PredictorState *ps)
+{
+    ps->r0   = 0.0f;
+    ps->r1   = 0.0f;
+    ps->cor0 = 0.0f;
+    ps->cor1 = 0.0f;
+    ps->var0 = 1.0f;
+    ps->var1 = 1.0f;
+}
+
+#ifndef VMUL2
+static inline float *VMUL2(float *dst, const float *v, unsigned idx,
+                           const float *scale)
+{
+    float s = *scale;
+    *dst++ = v[idx    & 15] * s;
+    *dst++ = v[idx>>4 & 15] * s;
+    return dst;
+}
+#endif
+
+#ifndef VMUL4
+static inline float *VMUL4(float *dst, const float *v, unsigned idx,
+                           const float *scale)
+{
+    float s = *scale;
+    *dst++ = v[idx    & 3] * s;
+    *dst++ = v[idx>>2 & 3] * s;
+    *dst++ = v[idx>>4 & 3] * s;
+    *dst++ = v[idx>>6 & 3] * s;
+    return dst;
+}
+#endif
+
+#ifndef VMUL2S
+static inline float *VMUL2S(float *dst, const float *v, unsigned idx,
+                            unsigned sign, const float *scale)
+{
+    union av_intfloat32 s0, s1;
+
+    s0.f = s1.f = *scale;
+    s0.i ^= sign >> 1 << 31;
+    s1.i ^= sign      << 31;
+
+    *dst++ = v[idx    & 15] * s0.f;
+    *dst++ = v[idx>>4 & 15] * s1.f;
+
+    return dst;
+}
+#endif
+
+#ifndef VMUL4S
+static inline float *VMUL4S(float *dst, const float *v, unsigned idx,
+                            unsigned sign, const float *scale)
+{
+    unsigned nz = idx >> 12;
+    union av_intfloat32 s = { .f = *scale };
+    union av_intfloat32 t;
+
+    t.i = s.i ^ (sign & 1U<<31);
+    *dst++ = v[idx    & 3] * t.f;
+
+    sign <<= nz & 1; nz >>= 1;
+    t.i = s.i ^ (sign & 1U<<31);
+    *dst++ = v[idx>>2 & 3] * t.f;
+
+    sign <<= nz & 1; nz >>= 1;
+    t.i = s.i ^ (sign & 1U<<31);
+    *dst++ = v[idx>>4 & 3] * t.f;
+
+    sign <<= nz & 1;
+    t.i = s.i ^ (sign & 1U<<31);
+    *dst++ = v[idx>>6 & 3] * t.f;
+
+    return dst;
+}
+#endif
+
+static av_always_inline float flt16_round(float pf)
+{
+    union av_intfloat32 tmp;
+    tmp.f = pf;
+    tmp.i = (tmp.i + 0x00008000U) & 0xFFFF0000U;
+    return tmp.f;
+}
+
+static av_always_inline float flt16_even(float pf)
+{
+    union av_intfloat32 tmp;
+    tmp.f = pf;
+    tmp.i = (tmp.i + 0x00007FFFU + (tmp.i & 0x00010000U >> 16)) & 0xFFFF0000U;
+    return tmp.f;
+}
+
+static av_always_inline float flt16_trunc(float pf)
+{
+    union av_intfloat32 pun;
+    pun.f = pf;
+    pun.i &= 0xFFFF0000U;
+    return pun.f;
+}
+
+static av_always_inline void predict(PredictorState *ps, float *coef,
+                                     int output_enable)
+{
+    const float a     = 0.953125; // 61.0 / 64
+    const float alpha = 0.90625;  // 29.0 / 32
+    float e0, e1;
+    float pv;
+    float k1, k2;
+    float   r0 = ps->r0,     r1 = ps->r1;
+    float cor0 = ps->cor0, cor1 = ps->cor1;
+    float var0 = ps->var0, var1 = ps->var1;
+
+    k1 = var0 > 1 ? cor0 * flt16_even(a / var0) : 0;
+    k2 = var1 > 1 ? cor1 * flt16_even(a / var1) : 0;
+
+    pv = flt16_round(k1 * r0 + k2 * r1);
+    if (output_enable)
+        *coef += pv;
+
+    e0 = *coef;
+    e1 = e0 - k1 * r0;
+
+    ps->cor1 = flt16_trunc(alpha * cor1 + r1 * e1);
+    ps->var1 = flt16_trunc(alpha * var1 + 0.5f * (r1 * r1 + e1 * e1));
+    ps->cor0 = flt16_trunc(alpha * cor0 + r0 * e0);
+    ps->var0 = flt16_trunc(alpha * var0 + 0.5f * (r0 * r0 + e0 * e0));
+
+    ps->r1 = flt16_trunc(a * (r0 - k1 * e0));
+    ps->r0 = flt16_trunc(a * e0);
+}
+
+/**
+ * Apply dependent channel coupling (applied before IMDCT).
+ *
+ * @param   index   index into coupling gain array
+ */
+static void apply_dependent_coupling(AACContext *ac,
+                                     SingleChannelElement *target,
+                                     ChannelElement *cce, int index)
+{
+    IndividualChannelStream *ics = &cce->ch[0].ics;
+    const uint16_t *offsets = ics->swb_offset;
+    float *dest = target->coeffs;
+    const float *src = cce->ch[0].coeffs;
+    int g, i, group, k, idx = 0;
+    if (ac->oc[1].m4ac.object_type == AOT_AAC_LTP) {
+        av_log(ac->avctx, AV_LOG_ERROR,
+               "Dependent coupling is not supported together with LTP\n");
+        return;
+    }
+    for (g = 0; g < ics->num_window_groups; g++) {
+        for (i = 0; i < ics->max_sfb; i++, idx++) {
+            if (cce->ch[0].band_type[idx] != ZERO_BT) {
+                const float gain = cce->coup.gain[index][idx];
+                for (group = 0; group < ics->group_len[g]; group++) {
+                    for (k = offsets[i]; k < offsets[i + 1]; k++) {
+                        // FIXME: SIMDify
+                        dest[group * 128 + k] += gain * src[group * 128 + k];
+                    }
+                }
+            }
+        }
+        dest += ics->group_len[g] * 128;
+        src  += ics->group_len[g] * 128;
+    }
+}
+
+/**
+ * Apply independent channel coupling (applied after IMDCT).
+ *
+ * @param   index   index into coupling gain array
+ */
+static void apply_independent_coupling(AACContext *ac,
+                                       SingleChannelElement *target,
+                                       ChannelElement *cce, int index)
+{
+    int i;
+    const float gain = cce->coup.gain[index][0];
+    const float *src = cce->ch[0].ret;
+    float *dest = target->ret;
+    const int len = 1024 << (ac->oc[1].m4ac.sbr == 1);
+
+    for (i = 0; i < len; i++)
+        dest[i] += gain * src[i];
+}
+
+#include "aacdec_template.c"
+
+#define LOAS_SYNC_WORD   0x2b7       ///< 11 bits LOAS sync word
+
+struct LATMContext {
+    AACContext aac_ctx;     ///< containing AACContext
+    int initialized;        ///< initialized after a valid extradata was seen
+
+    // parser data
+    int audio_mux_version_A; ///< LATM syntax version
+    int frame_length_type;   ///< 0/1 variable/fixed frame length
+    int frame_length;        ///< frame length for fixed frame length
+};
+
+static inline uint32_t latm_get_value(GetBitContext *b)
+{
+    int length = get_bits(b, 2);
+
+    return get_bits_long(b, (length+1)*8);
+}
+
+static int latm_decode_audio_specific_config(struct LATMContext *latmctx,
+                                             GetBitContext *gb, int asclen)
+{
+    AACContext *ac        = &latmctx->aac_ctx;
+    AVCodecContext *avctx = ac->avctx;
+    MPEG4AudioConfig m4ac = { 0 };
+    int config_start_bit  = get_bits_count(gb);
+    int sync_extension    = 0;
+    int bits_consumed, esize;
+
+    if (asclen) {
+        sync_extension = 1;
+        asclen         = FFMIN(asclen, get_bits_left(gb));
+    } else
+        asclen         = get_bits_left(gb);
+
+    if (config_start_bit % 8) {
+        avpriv_request_sample(latmctx->aac_ctx.avctx,
+                              "Non-byte-aligned audio-specific config");
+        return AVERROR_PATCHWELCOME;
+    }
+    if (asclen <= 0)
+        return AVERROR_INVALIDDATA;
+    bits_consumed = decode_audio_specific_config(NULL, avctx, &m4ac,
+                                         gb->buffer + (config_start_bit / 8),
+                                         asclen, sync_extension);
+
+    if (bits_consumed < 0)
+        return AVERROR_INVALIDDATA;
+
+    if (!latmctx->initialized ||
+        ac->oc[1].m4ac.sample_rate != m4ac.sample_rate ||
+        ac->oc[1].m4ac.chan_config != m4ac.chan_config) {
+
+        if(latmctx->initialized) {
+            av_log(avctx, AV_LOG_INFO, "audio config changed\n");
+        } else {
+            av_log(avctx, AV_LOG_DEBUG, "initializing latmctx\n");
+        }
+        latmctx->initialized = 0;
+
+        esize = (bits_consumed+7) / 8;
+
+        if (avctx->extradata_size < esize) {
+            av_free(avctx->extradata);
+            avctx->extradata = av_malloc(esize + AV_INPUT_BUFFER_PADDING_SIZE);
+            if (!avctx->extradata)
+                return AVERROR(ENOMEM);
+        }
+
+        avctx->extradata_size = esize;
+        memcpy(avctx->extradata, gb->buffer + (config_start_bit/8), esize);
+        memset(avctx->extradata+esize, 0, AV_INPUT_BUFFER_PADDING_SIZE);
+    }
+    skip_bits_long(gb, bits_consumed);
+
+    return bits_consumed;
+}
+
+static int read_stream_mux_config(struct LATMContext *latmctx,
+                                  GetBitContext *gb)
+{
+    int ret, audio_mux_version = get_bits(gb, 1);
+
+    latmctx->audio_mux_version_A = 0;
+    if (audio_mux_version)
+        latmctx->audio_mux_version_A = get_bits(gb, 1);
+
+    if (!latmctx->audio_mux_version_A) {
+
+        if (audio_mux_version)
+            latm_get_value(gb);                 // taraFullness
+
+        skip_bits(gb, 1);                       // allStreamSameTimeFraming
+        skip_bits(gb, 6);                       // numSubFrames
+        // numPrograms
+        if (get_bits(gb, 4)) {                  // numPrograms
+            avpriv_request_sample(latmctx->aac_ctx.avctx, "Multiple programs");
+            return AVERROR_PATCHWELCOME;
+        }
+
+        // for each program (which there is only one in DVB)
+
+        // for each layer (which there is only one in DVB)
+        if (get_bits(gb, 3)) {                   // numLayer
+            avpriv_request_sample(latmctx->aac_ctx.avctx, "Multiple layers");
+            return AVERROR_PATCHWELCOME;
+        }
+
+        // for all but first stream: use_same_config = get_bits(gb, 1);
+        if (!audio_mux_version) {
+            if ((ret = latm_decode_audio_specific_config(latmctx, gb, 0)) < 0)
+                return ret;
+        } else {
+            int ascLen = latm_get_value(gb);
+            if ((ret = latm_decode_audio_specific_config(latmctx, gb, ascLen)) < 0)
+                return ret;
+            ascLen -= ret;
+            skip_bits_long(gb, ascLen);
+        }
+
+        latmctx->frame_length_type = get_bits(gb, 3);
+        switch (latmctx->frame_length_type) {
+        case 0:
+            skip_bits(gb, 8);       // latmBufferFullness
+            break;
+        case 1:
+            latmctx->frame_length = get_bits(gb, 9);
+            break;
+        case 3:
+        case 4:
+        case 5:
+            skip_bits(gb, 6);       // CELP frame length table index
+            break;
+        case 6:
+        case 7:
+            skip_bits(gb, 1);       // HVXC frame length table index
+            break;
+        }
+
+        if (get_bits(gb, 1)) {                  // other data
+            if (audio_mux_version) {
+                latm_get_value(gb);             // other_data_bits
+            } else {
+                int esc;
+                do {
+                    esc = get_bits(gb, 1);
+                    skip_bits(gb, 8);
+                } while (esc);
+            }
+        }
+
+        if (get_bits(gb, 1))                     // crc present
+            skip_bits(gb, 8);                    // config_crc
+    }
+
+    return 0;
+}
+
+static int read_payload_length_info(struct LATMContext *ctx, GetBitContext *gb)
+{
+    uint8_t tmp;
+
+    if (ctx->frame_length_type == 0) {
+        int mux_slot_length = 0;
+        do {
+            tmp = get_bits(gb, 8);
+            mux_slot_length += tmp;
+        } while (tmp == 255);
+        return mux_slot_length;
+    } else if (ctx->frame_length_type == 1) {
+        return ctx->frame_length;
+    } else if (ctx->frame_length_type == 3 ||
+               ctx->frame_length_type == 5 ||
+               ctx->frame_length_type == 7) {
+        skip_bits(gb, 2);          // mux_slot_length_coded
+    }
+    return 0;
+}
+
+static int read_audio_mux_element(struct LATMContext *latmctx,
+                                  GetBitContext *gb)
+{
+    int err;
+    uint8_t use_same_mux = get_bits(gb, 1);
+    if (!use_same_mux) {
+        if ((err = read_stream_mux_config(latmctx, gb)) < 0)
+            return err;
+    } else if (!latmctx->aac_ctx.avctx->extradata) {
+        av_log(latmctx->aac_ctx.avctx, AV_LOG_DEBUG,
+               "no decoder config found\n");
+        return AVERROR(EAGAIN);
+    }
+    if (latmctx->audio_mux_version_A == 0) {
+        int mux_slot_length_bytes = read_payload_length_info(latmctx, gb);
+        if (mux_slot_length_bytes * 8 > get_bits_left(gb)) {
+            av_log(latmctx->aac_ctx.avctx, AV_LOG_ERROR, "incomplete frame\n");
+            return AVERROR_INVALIDDATA;
+        } else if (mux_slot_length_bytes * 8 + 256 < get_bits_left(gb)) {
+            av_log(latmctx->aac_ctx.avctx, AV_LOG_ERROR,
+                   "frame length mismatch %d << %d\n",
+                   mux_slot_length_bytes * 8, get_bits_left(gb));
+            return AVERROR_INVALIDDATA;
+        }
+    }
+    return 0;
+}
+
+
+static int latm_decode_frame(AVCodecContext *avctx, void *out,
+                             int *got_frame_ptr, AVPacket *avpkt)
+{
+    struct LATMContext *latmctx = avctx->priv_data;
+    int                 muxlength, err;
+    GetBitContext       gb;
+
+    if ((err = init_get_bits8(&gb, avpkt->data, avpkt->size)) < 0)
+        return err;
+
+    // check for LOAS sync word
+    if (get_bits(&gb, 11) != LOAS_SYNC_WORD)
+        return AVERROR_INVALIDDATA;
+
+    muxlength = get_bits(&gb, 13) + 3;
+    // not enough data, the parser should have sorted this out
+    if (muxlength > avpkt->size)
+        return AVERROR_INVALIDDATA;
+
+    if ((err = read_audio_mux_element(latmctx, &gb)) < 0)
+        return err;
+
+    if (!latmctx->initialized) {
+        if (!avctx->extradata) {
+            *got_frame_ptr = 0;
+            return avpkt->size;
+        } else {
+            push_output_configuration(&latmctx->aac_ctx);
+            if ((err = decode_audio_specific_config(
+                    &latmctx->aac_ctx, avctx, &latmctx->aac_ctx.oc[1].m4ac,
+                    avctx->extradata, avctx->extradata_size*8LL, 1)) < 0) {
+                pop_output_configuration(&latmctx->aac_ctx);
+                return err;
+            }
+            latmctx->initialized = 1;
+        }
+    }
+
+    if (show_bits(&gb, 12) == 0xfff) {
+        av_log(latmctx->aac_ctx.avctx, AV_LOG_ERROR,
+               "ADTS header detected, probably as result of configuration "
+               "misparsing\n");
+        return AVERROR_INVALIDDATA;
+    }
+
+    switch (latmctx->aac_ctx.oc[1].m4ac.object_type) {
+    case AOT_ER_AAC_LC:
+    case AOT_ER_AAC_LTP:
+    case AOT_ER_AAC_LD:
+    case AOT_ER_AAC_ELD:
+        err = aac_decode_er_frame(avctx, out, got_frame_ptr, &gb);
+        break;
+    default:
+        err = aac_decode_frame_int(avctx, out, got_frame_ptr, &gb, avpkt);
+    }
+    if (err < 0)
+        return err;
+
+    return muxlength;
+}
+
+static av_cold int latm_decode_init(AVCodecContext *avctx)
+{
+    struct LATMContext *latmctx = avctx->priv_data;
+    int ret = aac_decode_init(avctx);
+
+    if (avctx->extradata_size > 0)
+        latmctx->initialized = !ret;
+
+    return ret;
+}
+
+AVCodec ff_aac_decoder = {
+    .name            = "aac",
+    .long_name       = NULL_IF_CONFIG_SMALL("AAC (Advanced Audio Coding)"),
+    .type            = AVMEDIA_TYPE_AUDIO,
+    .id              = AV_CODEC_ID_AAC,
+    .priv_data_size  = sizeof(AACContext),
+    .init            = aac_decode_init,
+    .close           = aac_decode_close,
+    .decode          = aac_decode_frame,
+    .sample_fmts     = (const enum AVSampleFormat[]) {
+        AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_NONE
+    },
+    .capabilities    = AV_CODEC_CAP_CHANNEL_CONF | AV_CODEC_CAP_DR1,
+    .channel_layouts = aac_channel_layout,
+    .flush = flush,
+    .priv_class      = &aac_decoder_class,
+    .profiles        = profiles,
+};
+
+/*
+    Note: This decoder filter is intended to decode LATM streams transferred
+    in MPEG transport streams which only contain one program.
+    To do a more complex LATM demuxing a separate LATM demuxer should be used.
+*/
+AVCodec ff_aac_latm_decoder = {
+    .name            = "aac_latm",
+    .long_name       = NULL_IF_CONFIG_SMALL("AAC LATM (Advanced Audio Coding LATM syntax)"),
+    .type            = AVMEDIA_TYPE_AUDIO,
+    .id              = AV_CODEC_ID_AAC_LATM,
+    .priv_data_size  = sizeof(struct LATMContext),
+    .init            = latm_decode_init,
+    .close           = aac_decode_close,
+    .decode          = latm_decode_frame,
+    .sample_fmts     = (const enum AVSampleFormat[]) {
+        AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_NONE
+    },
+    .capabilities    = AV_CODEC_CAP_CHANNEL_CONF | AV_CODEC_CAP_DR1,
+    .channel_layouts = aac_channel_layout,
+    .flush = flush,
+    .profiles        = profiles,
+};

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacdec_fixed.c

@@ -0,0 +1,443 @@
+/*
+ * Copyright (c) 2013
+ *      MIPS Technologies, Inc., California.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the MIPS Technologies, Inc., nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * AAC decoder fixed-point implementation
+ *
+ * Copyright (c) 2005-2006 Oded Shimon ( ods15 ods15 dyndns org )
+ * Copyright (c) 2006-2007 Maxim Gavrilov ( maxim.gavrilov gmail com )
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC decoder
+ * @author Oded Shimon  ( ods15 ods15 dyndns org )
+ * @author Maxim Gavrilov ( maxim.gavrilov gmail com )
+ *
+ * Fixed point implementation
+ * @author Stanislav Ocovaj ( stanislav.ocovaj imgtec com )
+ */
+
+#define FFT_FLOAT 0
+#define FFT_FIXED_32 1
+#define USE_FIXED 1
+
+#include "libavutil/fixed_dsp.h"
+#include "libavutil/opt.h"
+#include "avcodec.h"
+#include "internal.h"
+#include "get_bits.h"
+#include "fft.h"
+#include "lpc.h"
+#include "kbdwin.h"
+#include "sinewin.h"
+
+#include "aac.h"
+#include "aactab.h"
+#include "aacdectab.h"
+#include "cbrt_tablegen.h"
+#include "sbr.h"
+#include "aacsbr.h"
+#include "mpeg4audio.h"
+#include "aacadtsdec.h"
+#include "libavutil/intfloat.h"
+
+#include <math.h>
+#include <string.h>
+
+static av_always_inline void reset_predict_state(PredictorState *ps)
+{
+    ps->r0.mant   = 0;
+    ps->r0.exp   = 0;
+    ps->r1.mant   = 0;
+    ps->r1.exp   = 0;
+    ps->cor0.mant = 0;
+    ps->cor0.exp = 0;
+    ps->cor1.mant = 0;
+    ps->cor1.exp = 0;
+    ps->var0.mant = 0x20000000;
+    ps->var0.exp = 1;
+    ps->var1.mant = 0x20000000;
+    ps->var1.exp = 1;
+}
+
+static const int exp2tab[4] = { Q31(1.0000000000/2), Q31(1.1892071150/2), Q31(1.4142135624/2), Q31(1.6817928305/2) };  // 2^0, 2^0.25, 2^0.5, 2^0.75
+
+static inline int *DEC_SPAIR(int *dst, unsigned idx)
+{
+    dst[0] = (idx & 15) - 4;
+    dst[1] = (idx >> 4 & 15) - 4;
+
+    return dst + 2;
+}
+
+static inline int *DEC_SQUAD(int *dst, unsigned idx)
+{
+    dst[0] = (idx & 3) - 1;
+    dst[1] = (idx >> 2 & 3) - 1;
+    dst[2] = (idx >> 4 & 3) - 1;
+    dst[3] = (idx >> 6 & 3) - 1;
+
+    return dst + 4;
+}
+
+static inline int *DEC_UPAIR(int *dst, unsigned idx, unsigned sign)
+{
+    dst[0] = (idx & 15) * (1 - (sign & 0xFFFFFFFE));
+    dst[1] = (idx >> 4 & 15) * (1 - ((sign & 1) << 1));
+
+    return dst + 2;
+}
+
+static inline int *DEC_UQUAD(int *dst, unsigned idx, unsigned sign)
+{
+    unsigned nz = idx >> 12;
+
+    dst[0] = (idx & 3) * (1 + (((int)sign >> 31) << 1));
+    sign <<= nz & 1;
+    nz >>= 1;
+    dst[1] = (idx >> 2 & 3) * (1 + (((int)sign >> 31) << 1));
+    sign <<= nz & 1;
+    nz >>= 1;
+    dst[2] = (idx >> 4 & 3) * (1 + (((int)sign >> 31) << 1));
+    sign <<= nz & 1;
+    nz >>= 1;
+    dst[3] = (idx >> 6 & 3) * (1 + (((int)sign >> 31) << 1));
+
+    return dst + 4;
+}
+
+static void vector_pow43(int *coefs, int len)
+{
+    int i, coef;
+
+    for (i=0; i<len; i++) {
+        coef = coefs[i];
+        if (coef < 0)
+            coef = -(int)cbrt_tab[-coef];
+        else
+            coef = (int)cbrt_tab[coef];
+        coefs[i] = coef;
+    }
+}
+
+static void subband_scale(int *dst, int *src, int scale, int offset, int len)
+{
+    int ssign = scale < 0 ? -1 : 1;
+    int s = FFABS(scale);
+    unsigned int round;
+    int i, out, c = exp2tab[s & 3];
+
+    s = offset - (s >> 2);
+
+    if (s > 0) {
+        round = 1 << (s-1);
+        for (i=0; i<len; i++) {
+            out = (int)(((int64_t)src[i] * c) >> 32);
+            dst[i] = ((int)(out+round) >> s) * ssign;
+        }
+    }
+    else {
+        s = s + 32;
+        round = 1 << (s-1);
+        for (i=0; i<len; i++) {
+            out = (int)((int64_t)((int64_t)src[i] * c + round) >> s);
+            dst[i] = out * ssign;
+        }
+    }
+}
+
+static void noise_scale(int *coefs, int scale, int band_energy, int len)
+{
+    int ssign = scale < 0 ? -1 : 1;
+    int s = FFABS(scale);
+    unsigned int round;
+    int i, out, c = exp2tab[s & 3];
+    int nlz = 0;
+
+    while (band_energy > 0x7fff) {
+        band_energy >>= 1;
+        nlz++;
+    }
+    c /= band_energy;
+    s = 21 + nlz - (s >> 2);
+
+    if (s > 0) {
+        round = 1 << (s-1);
+        for (i=0; i<len; i++) {
+            out = (int)(((int64_t)coefs[i] * c) >> 32);
+            coefs[i] = ((int)(out+round) >> s) * ssign;
+        }
+    }
+    else {
+        s = s + 32;
+        round = 1 << (s-1);
+        for (i=0; i<len; i++) {
+            out = (int)((int64_t)((int64_t)coefs[i] * c + round) >> s);
+            coefs[i] = out * ssign;
+        }
+    }
+}
+
+static av_always_inline SoftFloat flt16_round(SoftFloat pf)
+{
+    SoftFloat tmp;
+    int s;
+
+    tmp.exp = pf.exp;
+    s = pf.mant >> 31;
+    tmp.mant = (pf.mant ^ s) - s;
+    tmp.mant = (tmp.mant + 0x00200000U) & 0xFFC00000U;
+    tmp.mant = (tmp.mant ^ s) - s;
+
+    return tmp;
+}
+
+static av_always_inline SoftFloat flt16_even(SoftFloat pf)
+{
+    SoftFloat tmp;
+    int s;
+
+    tmp.exp = pf.exp;
+    s = pf.mant >> 31;
+    tmp.mant = (pf.mant ^ s) - s;
+    tmp.mant = (tmp.mant + 0x001FFFFFU + (tmp.mant & 0x00400000U >> 16)) & 0xFFC00000U;
+    tmp.mant = (tmp.mant ^ s) - s;
+
+    return tmp;
+}
+
+static av_always_inline SoftFloat flt16_trunc(SoftFloat pf)
+{
+    SoftFloat pun;
+    int s;
+
+    pun.exp = pf.exp;
+    s = pf.mant >> 31;
+    pun.mant = (pf.mant ^ s) - s;
+    pun.mant = pun.mant & 0xFFC00000U;
+    pun.mant = (pun.mant ^ s) - s;
+
+    return pun;
+}
+
+static av_always_inline void predict(PredictorState *ps, int *coef,
+                                     int output_enable)
+{
+    const SoftFloat a     = { 1023410176, 0 };  // 61.0 / 64
+    const SoftFloat alpha = {  973078528, 0 };  // 29.0 / 32
+    SoftFloat e0, e1;
+    SoftFloat pv;
+    SoftFloat k1, k2;
+    SoftFloat   r0 = ps->r0,     r1 = ps->r1;
+    SoftFloat cor0 = ps->cor0, cor1 = ps->cor1;
+    SoftFloat var0 = ps->var0, var1 = ps->var1;
+    SoftFloat tmp;
+
+    if (var0.exp > 1 || (var0.exp == 1 && var0.mant > 0x20000000)) {
+        k1 = av_mul_sf(cor0, flt16_even(av_div_sf(a, var0)));
+    }
+    else {
+        k1.mant = 0;
+        k1.exp = 0;
+    }
+
+    if (var1.exp > 1 || (var1.exp == 1 && var1.mant > 0x20000000)) {
+        k2 = av_mul_sf(cor1, flt16_even(av_div_sf(a, var1)));
+    }
+    else {
+        k2.mant = 0;
+        k2.exp = 0;
+    }
+
+    tmp = av_mul_sf(k1, r0);
+    pv = flt16_round(av_add_sf(tmp, av_mul_sf(k2, r1)));
+    if (output_enable) {
+        int shift = 28 - pv.exp;
+
+        if (shift < 31)
+            *coef += (pv.mant + (1 << (shift - 1))) >> shift;
+    }
+
+    e0 = av_int2sf(*coef, 2);
+    e1 = av_sub_sf(e0, tmp);
+
+    ps->cor1 = flt16_trunc(av_add_sf(av_mul_sf(alpha, cor1), av_mul_sf(r1, e1)));
+    tmp = av_add_sf(av_mul_sf(r1, r1), av_mul_sf(e1, e1));
+    tmp.exp--;
+    ps->var1 = flt16_trunc(av_add_sf(av_mul_sf(alpha, var1), tmp));
+    ps->cor0 = flt16_trunc(av_add_sf(av_mul_sf(alpha, cor0), av_mul_sf(r0, e0)));
+    tmp = av_add_sf(av_mul_sf(r0, r0), av_mul_sf(e0, e0));
+    tmp.exp--;
+    ps->var0 = flt16_trunc(av_add_sf(av_mul_sf(alpha, var0), tmp));
+
+    ps->r1 = flt16_trunc(av_mul_sf(a, av_sub_sf(r0, av_mul_sf(k1, e0))));
+    ps->r0 = flt16_trunc(av_mul_sf(a, e0));
+}
+
+
+static const int cce_scale_fixed[8] = {
+    Q30(1.0),          //2^(0/8)
+    Q30(1.0905077327), //2^(1/8)
+    Q30(1.1892071150), //2^(2/8)
+    Q30(1.2968395547), //2^(3/8)
+    Q30(1.4142135624), //2^(4/8)
+    Q30(1.5422108254), //2^(5/8)
+    Q30(1.6817928305), //2^(6/8)
+    Q30(1.8340080864), //2^(7/8)
+};
+
+/**
+ * Apply dependent channel coupling (applied before IMDCT).
+ *
+ * @param   index   index into coupling gain array
+ */
+static void apply_dependent_coupling_fixed(AACContext *ac,
+                                     SingleChannelElement *target,
+                                     ChannelElement *cce, int index)
+{
+    IndividualChannelStream *ics = &cce->ch[0].ics;
+    const uint16_t *offsets = ics->swb_offset;
+    int *dest = target->coeffs;
+    const int *src = cce->ch[0].coeffs;
+    int g, i, group, k, idx = 0;
+    if (ac->oc[1].m4ac.object_type == AOT_AAC_LTP) {
+        av_log(ac->avctx, AV_LOG_ERROR,
+               "Dependent coupling is not supported together with LTP\n");
+        return;
+    }
+    for (g = 0; g < ics->num_window_groups; g++) {
+        for (i = 0; i < ics->max_sfb; i++, idx++) {
+            if (cce->ch[0].band_type[idx] != ZERO_BT) {
+                const int gain = cce->coup.gain[index][idx];
+                int shift, round, c, tmp;
+
+                if (gain < 0) {
+                    c = -cce_scale_fixed[-gain & 7];
+                    shift = (-gain-1024) >> 3;
+                }
+                else {
+                    c = cce_scale_fixed[gain & 7];
+                    shift = (gain-1024) >> 3;
+                }
+
+                if (shift < 0) {
+                    shift = -shift;
+                    round = 1 << (shift - 1);
+
+                    for (group = 0; group < ics->group_len[g]; group++) {
+                        for (k = offsets[i]; k < offsets[i + 1]; k++) {
+                            tmp = (int)(((int64_t)src[group * 128 + k] * c + \
+                                       (int64_t)0x1000000000) >> 37);
+                            dest[group * 128 + k] += (tmp + round) >> shift;
+                        }
+                    }
+                }
+                else {
+                    for (group = 0; group < ics->group_len[g]; group++) {
+                        for (k = offsets[i]; k < offsets[i + 1]; k++) {
+                            tmp = (int)(((int64_t)src[group * 128 + k] * c + \
+                                        (int64_t)0x1000000000) >> 37);
+                            dest[group * 128 + k] += tmp << shift;
+                        }
+                    }
+                }
+            }
+        }
+        dest += ics->group_len[g] * 128;
+        src  += ics->group_len[g] * 128;
+    }
+}
+
+/**
+ * Apply independent channel coupling (applied after IMDCT).
+ *
+ * @param   index   index into coupling gain array
+ */
+static void apply_independent_coupling_fixed(AACContext *ac,
+                                       SingleChannelElement *target,
+                                       ChannelElement *cce, int index)
+{
+    int i, c, shift, round, tmp;
+    const int gain = cce->coup.gain[index][0];
+    const int *src = cce->ch[0].ret;
+    int *dest = target->ret;
+    const int len = 1024 << (ac->oc[1].m4ac.sbr == 1);
+
+    c = cce_scale_fixed[gain & 7];
+    shift = (gain-1024) >> 3;
+    if (shift < 0) {
+        shift = -shift;
+        round = 1 << (shift - 1);
+
+        for (i = 0; i < len; i++) {
+            tmp = (int)(((int64_t)src[i] * c + (int64_t)0x1000000000) >> 37);
+            dest[i] += (tmp + round) >> shift;
+        }
+    }
+    else {
+      for (i = 0; i < len; i++) {
+          tmp = (int)(((int64_t)src[i] * c + (int64_t)0x1000000000) >> 37);
+          dest[i] += tmp << shift;
+      }
+    }
+}
+
+#include "aacdec_template.c"
+
+AVCodec ff_aac_fixed_decoder = {
+    .name            = "aac_fixed",
+    .long_name       = NULL_IF_CONFIG_SMALL("AAC (Advanced Audio Coding)"),
+    .type            = AVMEDIA_TYPE_AUDIO,
+    .id              = AV_CODEC_ID_AAC,
+    .priv_data_size  = sizeof(AACContext),
+    .init            = aac_decode_init,
+    .close           = aac_decode_close,
+    .decode          = aac_decode_frame,
+    .sample_fmts     = (const enum AVSampleFormat[]) {
+        AV_SAMPLE_FMT_S32P, AV_SAMPLE_FMT_NONE
+    },
+    .capabilities    = AV_CODEC_CAP_CHANNEL_CONF | AV_CODEC_CAP_DR1,
+    .channel_layouts = aac_channel_layout,
+    .flush = flush,
+};

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacdectab.h

@@ -0,0 +1,82 @@
+/*
+ * AAC decoder data
+ * Copyright (c) 2005-2006 Oded Shimon ( ods15 ods15 dyndns org )
+ * Copyright (c) 2006-2007 Maxim Gavrilov ( maxim.gavrilov gmail com )
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC decoder data
+ * @author Oded Shimon  ( ods15 ods15 dyndns org )
+ * @author Maxim Gavrilov ( maxim.gavrilov gmail com )
+ */
+
+#ifndef AVCODEC_AACDECTAB_H
+#define AVCODEC_AACDECTAB_H
+
+#include "libavutil/channel_layout.h"
+#include "aac.h"
+
+#include <stdint.h>
+
+/* @name ltp_coef
+ * Table of the LTP coefficients
+ */
+static const INTFLOAT ltp_coef[8] = {
+    Q30(0.570829f), Q30(0.696616f), Q30(0.813004f), Q30(0.911304f),
+    Q30(0.984900f), Q30(1.067894f), Q30(1.194601f), Q30(1.369533f),
+};
+
+static const int8_t tags_per_config[16] = { 0, 1, 1, 2, 3, 3, 4, 5, 0, 0, 0, 4, 5, 0, 5, 0 };
+
+static const uint8_t aac_channel_layout_map[16][5][3] = {
+    { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, },
+    { { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, },
+    { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, },
+    { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_SCE, 1, AAC_CHANNEL_BACK }, },
+    { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, },
+    { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE  }, },
+    { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_FRONT }, { TYPE_CPE, 2, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE  }, },
+    { { 0, } },
+    { { 0, } },
+    { { 0, } },
+    { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_BACK }, { TYPE_SCE, 1, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE  }, },
+    { { TYPE_SCE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 0, AAC_CHANNEL_FRONT }, { TYPE_CPE, 1, AAC_CHANNEL_SIDE }, { TYPE_CPE, 2, AAC_CHANNEL_BACK }, { TYPE_LFE, 0, AAC_CHANNEL_LFE  }, },
+    { { 0, } },
+    /* TODO: Add 7+1 TOP configuration */
+};
+
+static const uint64_t aac_channel_layout[16] = {
+    AV_CH_LAYOUT_MONO,
+    AV_CH_LAYOUT_STEREO,
+    AV_CH_LAYOUT_SURROUND,
+    AV_CH_LAYOUT_4POINT0,
+    AV_CH_LAYOUT_5POINT0_BACK,
+    AV_CH_LAYOUT_5POINT1_BACK,
+    AV_CH_LAYOUT_7POINT1_WIDE_BACK,
+    0,
+    0,
+    0,
+    AV_CH_LAYOUT_6POINT1,
+    AV_CH_LAYOUT_7POINT1,
+    0,
+    /* AV_CH_LAYOUT_7POINT1_TOP, */
+};
+
+#endif /* AVCODEC_AACDECTAB_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacenc.c

@@ -0,0 +1,925 @@
+/*
+ * AAC encoder
+ * Copyright (C) 2008 Konstantin Shishkov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC encoder
+ */
+
+/***********************************
+ *              TODOs:
+ * add sane pulse detection
+ ***********************************/
+
+#include "libavutil/float_dsp.h"
+#include "libavutil/opt.h"
+#include "avcodec.h"
+#include "put_bits.h"
+#include "internal.h"
+#include "mpeg4audio.h"
+#include "kbdwin.h"
+#include "sinewin.h"
+
+#include "aac.h"
+#include "aactab.h"
+#include "aacenc.h"
+#include "aacenctab.h"
+#include "aacenc_utils.h"
+
+#include "psymodel.h"
+
+/**
+ * Make AAC audio config object.
+ * @see 1.6.2.1 "Syntax - AudioSpecificConfig"
+ */
+static void put_audio_specific_config(AVCodecContext *avctx)
+{
+    PutBitContext pb;
+    AACEncContext *s = avctx->priv_data;
+
+    init_put_bits(&pb, avctx->extradata, avctx->extradata_size);
+    put_bits(&pb, 5, s->profile+1); //profile
+    put_bits(&pb, 4, s->samplerate_index); //sample rate index
+    put_bits(&pb, 4, s->channels);
+    //GASpecificConfig
+    put_bits(&pb, 1, 0); //frame length - 1024 samples
+    put_bits(&pb, 1, 0); //does not depend on core coder
+    put_bits(&pb, 1, 0); //is not extension
+
+    //Explicitly Mark SBR absent
+    put_bits(&pb, 11, 0x2b7); //sync extension
+    put_bits(&pb, 5,  AOT_SBR);
+    put_bits(&pb, 1,  0);
+    flush_put_bits(&pb);
+}
+
+#define WINDOW_FUNC(type) \
+static void apply_ ##type ##_window(AVFloatDSPContext *fdsp, \
+                                    SingleChannelElement *sce, \
+                                    const float *audio)
+
+WINDOW_FUNC(only_long)
+{
+    const float *lwindow = sce->ics.use_kb_window[0] ? ff_aac_kbd_long_1024 : ff_sine_1024;
+    const float *pwindow = sce->ics.use_kb_window[1] ? ff_aac_kbd_long_1024 : ff_sine_1024;
+    float *out = sce->ret_buf;
+
+    fdsp->vector_fmul        (out,        audio,        lwindow, 1024);
+    fdsp->vector_fmul_reverse(out + 1024, audio + 1024, pwindow, 1024);
+}
+
+WINDOW_FUNC(long_start)
+{
+    const float *lwindow = sce->ics.use_kb_window[1] ? ff_aac_kbd_long_1024 : ff_sine_1024;
+    const float *swindow = sce->ics.use_kb_window[0] ? ff_aac_kbd_short_128 : ff_sine_128;
+    float *out = sce->ret_buf;
+
+    fdsp->vector_fmul(out, audio, lwindow, 1024);
+    memcpy(out + 1024, audio + 1024, sizeof(out[0]) * 448);
+    fdsp->vector_fmul_reverse(out + 1024 + 448, audio + 1024 + 448, swindow, 128);
+    memset(out + 1024 + 576, 0, sizeof(out[0]) * 448);
+}
+
+WINDOW_FUNC(long_stop)
+{
+    const float *lwindow = sce->ics.use_kb_window[0] ? ff_aac_kbd_long_1024 : ff_sine_1024;
+    const float *swindow = sce->ics.use_kb_window[1] ? ff_aac_kbd_short_128 : ff_sine_128;
+    float *out = sce->ret_buf;
+
+    memset(out, 0, sizeof(out[0]) * 448);
+    fdsp->vector_fmul(out + 448, audio + 448, swindow, 128);
+    memcpy(out + 576, audio + 576, sizeof(out[0]) * 448);
+    fdsp->vector_fmul_reverse(out + 1024, audio + 1024, lwindow, 1024);
+}
+
+WINDOW_FUNC(eight_short)
+{
+    const float *swindow = sce->ics.use_kb_window[0] ? ff_aac_kbd_short_128 : ff_sine_128;
+    const float *pwindow = sce->ics.use_kb_window[1] ? ff_aac_kbd_short_128 : ff_sine_128;
+    const float *in = audio + 448;
+    float *out = sce->ret_buf;
+    int w;
+
+    for (w = 0; w < 8; w++) {
+        fdsp->vector_fmul        (out, in, w ? pwindow : swindow, 128);
+        out += 128;
+        in  += 128;
+        fdsp->vector_fmul_reverse(out, in, swindow, 128);
+        out += 128;
+    }
+}
+
+static void (*const apply_window[4])(AVFloatDSPContext *fdsp,
+                                     SingleChannelElement *sce,
+                                     const float *audio) = {
+    [ONLY_LONG_SEQUENCE]   = apply_only_long_window,
+    [LONG_START_SEQUENCE]  = apply_long_start_window,
+    [EIGHT_SHORT_SEQUENCE] = apply_eight_short_window,
+    [LONG_STOP_SEQUENCE]   = apply_long_stop_window
+};
+
+static void apply_window_and_mdct(AACEncContext *s, SingleChannelElement *sce,
+                                  float *audio)
+{
+    int i;
+    float *output = sce->ret_buf;
+
+    apply_window[sce->ics.window_sequence[0]](s->fdsp, sce, audio);
+
+    if (sce->ics.window_sequence[0] != EIGHT_SHORT_SEQUENCE)
+        s->mdct1024.mdct_calc(&s->mdct1024, sce->coeffs, output);
+    else
+        for (i = 0; i < 1024; i += 128)
+            s->mdct128.mdct_calc(&s->mdct128, &sce->coeffs[i], output + i*2);
+    memcpy(audio, audio + 1024, sizeof(audio[0]) * 1024);
+    memcpy(sce->pcoeffs, sce->coeffs, sizeof(sce->pcoeffs));
+}
+
+/**
+ * Encode ics_info element.
+ * @see Table 4.6 (syntax of ics_info)
+ */
+static void put_ics_info(AACEncContext *s, IndividualChannelStream *info)
+{
+    int w;
+
+    put_bits(&s->pb, 1, 0);                // ics_reserved bit
+    put_bits(&s->pb, 2, info->window_sequence[0]);
+    put_bits(&s->pb, 1, info->use_kb_window[0]);
+    if (info->window_sequence[0] != EIGHT_SHORT_SEQUENCE) {
+        put_bits(&s->pb, 6, info->max_sfb);
+        put_bits(&s->pb, 1, !!info->predictor_present);
+    } else {
+        put_bits(&s->pb, 4, info->max_sfb);
+        for (w = 1; w < 8; w++)
+            put_bits(&s->pb, 1, !info->group_len[w]);
+    }
+}
+
+/**
+ * Encode MS data.
+ * @see 4.6.8.1 "Joint Coding - M/S Stereo"
+ */
+static void encode_ms_info(PutBitContext *pb, ChannelElement *cpe)
+{
+    int i, w;
+
+    put_bits(pb, 2, cpe->ms_mode);
+    if (cpe->ms_mode == 1)
+        for (w = 0; w < cpe->ch[0].ics.num_windows; w += cpe->ch[0].ics.group_len[w])
+            for (i = 0; i < cpe->ch[0].ics.max_sfb; i++)
+                put_bits(pb, 1, cpe->ms_mask[w*16 + i]);
+}
+
+/**
+ * Produce integer coefficients from scalefactors provided by the model.
+ */
+static void adjust_frame_information(ChannelElement *cpe, int chans)
+{
+    int i, w, w2, g, ch;
+    int maxsfb, cmaxsfb;
+
+    for (ch = 0; ch < chans; ch++) {
+        IndividualChannelStream *ics = &cpe->ch[ch].ics;
+        maxsfb = 0;
+        cpe->ch[ch].pulse.num_pulse = 0;
+        for (w = 0; w < ics->num_windows; w += ics->group_len[w]) {
+            for (w2 =  0; w2 < ics->group_len[w]; w2++) {
+                for (cmaxsfb = ics->num_swb; cmaxsfb > 0 && cpe->ch[ch].zeroes[w*16+cmaxsfb-1]; cmaxsfb--)
+                    ;
+                maxsfb = FFMAX(maxsfb, cmaxsfb);
+            }
+        }
+        ics->max_sfb = maxsfb;
+
+        //adjust zero bands for window groups
+        for (w = 0; w < ics->num_windows; w += ics->group_len[w]) {
+            for (g = 0; g < ics->max_sfb; g++) {
+                i = 1;
+                for (w2 = w; w2 < w + ics->group_len[w]; w2++) {
+                    if (!cpe->ch[ch].zeroes[w2*16 + g]) {
+                        i = 0;
+                        break;
+                    }
+                }
+                cpe->ch[ch].zeroes[w*16 + g] = i;
+            }
+        }
+    }
+
+    if (chans > 1 && cpe->common_window) {
+        IndividualChannelStream *ics0 = &cpe->ch[0].ics;
+        IndividualChannelStream *ics1 = &cpe->ch[1].ics;
+        int msc = 0;
+        ics0->max_sfb = FFMAX(ics0->max_sfb, ics1->max_sfb);
+        ics1->max_sfb = ics0->max_sfb;
+        for (w = 0; w < ics0->num_windows*16; w += 16)
+            for (i = 0; i < ics0->max_sfb; i++)
+                if (cpe->ms_mask[w+i])
+                    msc++;
+        if (msc == 0 || ics0->max_sfb == 0)
+            cpe->ms_mode = 0;
+        else
+            cpe->ms_mode = msc < ics0->max_sfb * ics0->num_windows ? 1 : 2;
+    }
+}
+
+static void apply_intensity_stereo(ChannelElement *cpe)
+{
+    int w, w2, g, i;
+    IndividualChannelStream *ics = &cpe->ch[0].ics;
+    if (!cpe->common_window)
+        return;
+    for (w = 0; w < ics->num_windows; w += ics->group_len[w]) {
+        for (w2 =  0; w2 < ics->group_len[w]; w2++) {
+            int start = (w+w2) * 128;
+            for (g = 0; g < ics->num_swb; g++) {
+                int p  = -1 + 2 * (cpe->ch[1].band_type[w*16+g] - 14);
+                float scale = cpe->ch[0].is_ener[w*16+g];
+                if (!cpe->is_mask[w*16 + g]) {
+                    start += ics->swb_sizes[g];
+                    continue;
+                }
+                for (i = 0; i < ics->swb_sizes[g]; i++) {
+                    float sum = (cpe->ch[0].coeffs[start+i] + p*cpe->ch[1].coeffs[start+i])*scale;
+                    cpe->ch[0].coeffs[start+i] = sum;
+                    cpe->ch[1].coeffs[start+i] = 0.0f;
+                }
+                start += ics->swb_sizes[g];
+            }
+        }
+    }
+}
+
+static void apply_mid_side_stereo(ChannelElement *cpe)
+{
+    int w, w2, g, i;
+    IndividualChannelStream *ics = &cpe->ch[0].ics;
+    if (!cpe->common_window)
+        return;
+    for (w = 0; w < ics->num_windows; w += ics->group_len[w]) {
+        for (w2 =  0; w2 < ics->group_len[w]; w2++) {
+            int start = (w+w2) * 128;
+            for (g = 0; g < ics->num_swb; g++) {
+                if (!cpe->ms_mask[w*16 + g]) {
+                    start += ics->swb_sizes[g];
+                    continue;
+                }
+                for (i = 0; i < ics->swb_sizes[g]; i++) {
+                    float L = (cpe->ch[0].coeffs[start+i] + cpe->ch[1].coeffs[start+i]) * 0.5f;
+                    float R = L - cpe->ch[1].coeffs[start+i];
+                    cpe->ch[0].coeffs[start+i] = L;
+                    cpe->ch[1].coeffs[start+i] = R;
+                }
+                start += ics->swb_sizes[g];
+            }
+        }
+    }
+}
+
+/**
+ * Encode scalefactor band coding type.
+ */
+static void encode_band_info(AACEncContext *s, SingleChannelElement *sce)
+{
+    int w;
+
+    if (s->coder->set_special_band_scalefactors)
+        s->coder->set_special_band_scalefactors(s, sce);
+
+    for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w])
+        s->coder->encode_window_bands_info(s, sce, w, sce->ics.group_len[w], s->lambda);
+}
+
+/**
+ * Encode scalefactors.
+ */
+static void encode_scale_factors(AVCodecContext *avctx, AACEncContext *s,
+                                 SingleChannelElement *sce)
+{
+    int diff, off_sf = sce->sf_idx[0], off_pns = sce->sf_idx[0] - NOISE_OFFSET;
+    int off_is = 0, noise_flag = 1;
+    int i, w;
+
+    for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+        for (i = 0; i < sce->ics.max_sfb; i++) {
+            if (!sce->zeroes[w*16 + i]) {
+                if (sce->band_type[w*16 + i] == NOISE_BT) {
+                    diff = sce->sf_idx[w*16 + i] - off_pns;
+                    off_pns = sce->sf_idx[w*16 + i];
+                    if (noise_flag-- > 0) {
+                        put_bits(&s->pb, NOISE_PRE_BITS, diff + NOISE_PRE);
+                        continue;
+                    }
+                } else if (sce->band_type[w*16 + i] == INTENSITY_BT  ||
+                           sce->band_type[w*16 + i] == INTENSITY_BT2) {
+                    diff = sce->sf_idx[w*16 + i] - off_is;
+                    off_is = sce->sf_idx[w*16 + i];
+                } else {
+                    diff = sce->sf_idx[w*16 + i] - off_sf;
+                    off_sf = sce->sf_idx[w*16 + i];
+                }
+                diff += SCALE_DIFF_ZERO;
+                av_assert0(diff >= 0 && diff <= 120);
+                put_bits(&s->pb, ff_aac_scalefactor_bits[diff], ff_aac_scalefactor_code[diff]);
+            }
+        }
+    }
+}
+
+/**
+ * Encode pulse data.
+ */
+static void encode_pulses(AACEncContext *s, Pulse *pulse)
+{
+    int i;
+
+    put_bits(&s->pb, 1, !!pulse->num_pulse);
+    if (!pulse->num_pulse)
+        return;
+
+    put_bits(&s->pb, 2, pulse->num_pulse - 1);
+    put_bits(&s->pb, 6, pulse->start);
+    for (i = 0; i < pulse->num_pulse; i++) {
+        put_bits(&s->pb, 5, pulse->pos[i]);
+        put_bits(&s->pb, 4, pulse->amp[i]);
+    }
+}
+
+/**
+ * Encode spectral coefficients processed by psychoacoustic model.
+ */
+static void encode_spectral_coeffs(AACEncContext *s, SingleChannelElement *sce)
+{
+    int start, i, w, w2;
+
+    for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
+        start = 0;
+        for (i = 0; i < sce->ics.max_sfb; i++) {
+            if (sce->zeroes[w*16 + i]) {
+                start += sce->ics.swb_sizes[i];
+                continue;
+            }
+            for (w2 = w; w2 < w + sce->ics.group_len[w]; w2++) {
+                s->coder->quantize_and_encode_band(s, &s->pb,
+                                                   &sce->coeffs[start + w2*128],
+                                                   NULL, sce->ics.swb_sizes[i],
+                                                   sce->sf_idx[w*16 + i],
+                                                   sce->band_type[w*16 + i],
+                                                   s->lambda,
+                                                   sce->ics.window_clipping[w]);
+            }
+            start += sce->ics.swb_sizes[i];
+        }
+    }
+}
+
+/**
+ * Downscale spectral coefficients for near-clipping windows to avoid artifacts
+ */
+static void avoid_clipping(AACEncContext *s, SingleChannelElement *sce)
+{
+    int start, i, j, w;
+
+    if (sce->ics.clip_avoidance_factor < 1.0f) {
+        for (w = 0; w < sce->ics.num_windows; w++) {
+            start = 0;
+            for (i = 0; i < sce->ics.max_sfb; i++) {
+                float *swb_coeffs = &sce->coeffs[start + w*128];
+                for (j = 0; j < sce->ics.swb_sizes[i]; j++)
+                    swb_coeffs[j] *= sce->ics.clip_avoidance_factor;
+                start += sce->ics.swb_sizes[i];
+            }
+        }
+    }
+}
+
+/**
+ * Encode one channel of audio data.
+ */
+static int encode_individual_channel(AVCodecContext *avctx, AACEncContext *s,
+                                     SingleChannelElement *sce,
+                                     int common_window)
+{
+    put_bits(&s->pb, 8, sce->sf_idx[0]);
+    if (!common_window) {
+        put_ics_info(s, &sce->ics);
+        if (s->coder->encode_main_pred)
+            s->coder->encode_main_pred(s, sce);
+    }
+    encode_band_info(s, sce);
+    encode_scale_factors(avctx, s, sce);
+    encode_pulses(s, &sce->pulse);
+    put_bits(&s->pb, 1, !!sce->tns.present);
+    if (s->coder->encode_tns_info)
+        s->coder->encode_tns_info(s, sce);
+    put_bits(&s->pb, 1, 0); //ssr
+    encode_spectral_coeffs(s, sce);
+    return 0;
+}
+
+/**
+ * Write some auxiliary information about the created AAC file.
+ */
+static void put_bitstream_info(AACEncContext *s, const char *name)
+{
+    int i, namelen, padbits;
+
+    namelen = strlen(name) + 2;
+    put_bits(&s->pb, 3, TYPE_FIL);
+    put_bits(&s->pb, 4, FFMIN(namelen, 15));
+    if (namelen >= 15)
+        put_bits(&s->pb, 8, namelen - 14);
+    put_bits(&s->pb, 4, 0); //extension type - filler
+    padbits = -put_bits_count(&s->pb) & 7;
+    avpriv_align_put_bits(&s->pb);
+    for (i = 0; i < namelen - 2; i++)
+        put_bits(&s->pb, 8, name[i]);
+    put_bits(&s->pb, 12 - padbits, 0);
+}
+
+/*
+ * Copy input samples.
+ * Channels are reordered from libavcodec's default order to AAC order.
+ */
+static void copy_input_samples(AACEncContext *s, const AVFrame *frame)
+{
+    int ch;
+    int end = 2048 + (frame ? frame->nb_samples : 0);
+    const uint8_t *channel_map = aac_chan_maps[s->channels - 1];
+
+    /* copy and remap input samples */
+    for (ch = 0; ch < s->channels; ch++) {
+        /* copy last 1024 samples of previous frame to the start of the current frame */
+        memcpy(&s->planar_samples[ch][1024], &s->planar_samples[ch][2048], 1024 * sizeof(s->planar_samples[0][0]));
+
+        /* copy new samples and zero any remaining samples */
+        if (frame) {
+            memcpy(&s->planar_samples[ch][2048],
+                   frame->extended_data[channel_map[ch]],
+                   frame->nb_samples * sizeof(s->planar_samples[0][0]));
+        }
+        memset(&s->planar_samples[ch][end], 0,
+               (3072 - end) * sizeof(s->planar_samples[0][0]));
+    }
+}
+
+static int aac_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
+                            const AVFrame *frame, int *got_packet_ptr)
+{
+    AACEncContext *s = avctx->priv_data;
+    float **samples = s->planar_samples, *samples2, *la, *overlap;
+    ChannelElement *cpe;
+    SingleChannelElement *sce;
+    int i, ch, w, chans, tag, start_ch, ret;
+    int ms_mode = 0, is_mode = 0, tns_mode = 0, pred_mode = 0;
+    int chan_el_counter[4];
+    FFPsyWindowInfo windows[AAC_MAX_CHANNELS];
+
+    if (s->last_frame == 2)
+        return 0;
+
+    /* add current frame to queue */
+    if (frame) {
+        if ((ret = ff_af_queue_add(&s->afq, frame)) < 0)
+            return ret;
+    }
+
+    copy_input_samples(s, frame);
+    if (s->psypp)
+        ff_psy_preprocess(s->psypp, s->planar_samples, s->channels);
+
+    if (!avctx->frame_number)
+        return 0;
+
+    start_ch = 0;
+    for (i = 0; i < s->chan_map[0]; i++) {
+        FFPsyWindowInfo* wi = windows + start_ch;
+        tag      = s->chan_map[i+1];
+        chans    = tag == TYPE_CPE ? 2 : 1;
+        cpe      = &s->cpe[i];
+        for (ch = 0; ch < chans; ch++) {
+            IndividualChannelStream *ics = &cpe->ch[ch].ics;
+            int cur_channel = start_ch + ch;
+            float clip_avoidance_factor;
+            overlap  = &samples[cur_channel][0];
+            samples2 = overlap + 1024;
+            la       = samples2 + (448+64);
+            if (!frame)
+                la = NULL;
+            if (tag == TYPE_LFE) {
+                wi[ch].window_type[0] = ONLY_LONG_SEQUENCE;
+                wi[ch].window_shape   = 0;
+                wi[ch].num_windows    = 1;
+                wi[ch].grouping[0]    = 1;
+
+                /* Only the lowest 12 coefficients are used in a LFE channel.
+                 * The expression below results in only the bottom 8 coefficients
+                 * being used for 11.025kHz to 16kHz sample rates.
+                 */
+                ics->num_swb = s->samplerate_index >= 8 ? 1 : 3;
+            } else {
+                wi[ch] = s->psy.model->window(&s->psy, samples2, la, cur_channel,
+                                              ics->window_sequence[0]);
+            }
+            ics->window_sequence[1] = ics->window_sequence[0];
+            ics->window_sequence[0] = wi[ch].window_type[0];
+            ics->use_kb_window[1]   = ics->use_kb_window[0];
+            ics->use_kb_window[0]   = wi[ch].window_shape;
+            ics->num_windows        = wi[ch].num_windows;
+            ics->swb_sizes          = s->psy.bands    [ics->num_windows == 8];
+            ics->num_swb            = tag == TYPE_LFE ? ics->num_swb : s->psy.num_bands[ics->num_windows == 8];
+            ics->max_sfb            = FFMIN(ics->max_sfb, ics->num_swb);
+            ics->swb_offset         = wi[ch].window_type[0] == EIGHT_SHORT_SEQUENCE ?
+                                        ff_swb_offset_128 [s->samplerate_index]:
+                                        ff_swb_offset_1024[s->samplerate_index];
+            ics->tns_max_bands      = wi[ch].window_type[0] == EIGHT_SHORT_SEQUENCE ?
+                                        ff_tns_max_bands_128 [s->samplerate_index]:
+                                        ff_tns_max_bands_1024[s->samplerate_index];
+            clip_avoidance_factor = 0.0f;
+            for (w = 0; w < ics->num_windows; w++)
+                ics->group_len[w] = wi[ch].grouping[w];
+            for (w = 0; w < ics->num_windows; w++) {
+                if (wi[ch].clipping[w] > CLIP_AVOIDANCE_FACTOR) {
+                    ics->window_clipping[w] = 1;
+                    clip_avoidance_factor = FFMAX(clip_avoidance_factor, wi[ch].clipping[w]);
+                } else {
+                    ics->window_clipping[w] = 0;
+                }
+            }
+            if (clip_avoidance_factor > CLIP_AVOIDANCE_FACTOR) {
+                ics->clip_avoidance_factor = CLIP_AVOIDANCE_FACTOR / clip_avoidance_factor;
+            } else {
+                ics->clip_avoidance_factor = 1.0f;
+            }
+
+            apply_window_and_mdct(s, &cpe->ch[ch], overlap);
+            if (isnan(cpe->ch->coeffs[0])) {
+                av_log(avctx, AV_LOG_ERROR, "Input contains NaN\n");
+                return AVERROR(EINVAL);
+            }
+            avoid_clipping(s, &cpe->ch[ch]);
+        }
+        start_ch += chans;
+    }
+    if ((ret = ff_alloc_packet2(avctx, avpkt, 8192 * s->channels, 0)) < 0)
+        return ret;
+    do {
+        int frame_bits;
+
+        init_put_bits(&s->pb, avpkt->data, avpkt->size);
+
+        if ((avctx->frame_number & 0xFF)==1 && !(avctx->flags & AV_CODEC_FLAG_BITEXACT))
+            put_bitstream_info(s, LIBAVCODEC_IDENT);
+        start_ch = 0;
+        memset(chan_el_counter, 0, sizeof(chan_el_counter));
+        for (i = 0; i < s->chan_map[0]; i++) {
+            FFPsyWindowInfo* wi = windows + start_ch;
+            const float *coeffs[2];
+            tag      = s->chan_map[i+1];
+            chans    = tag == TYPE_CPE ? 2 : 1;
+            cpe      = &s->cpe[i];
+            cpe->common_window = 0;
+            memset(cpe->is_mask, 0, sizeof(cpe->is_mask));
+            memset(cpe->ms_mask, 0, sizeof(cpe->ms_mask));
+            put_bits(&s->pb, 3, tag);
+            put_bits(&s->pb, 4, chan_el_counter[tag]++);
+            for (ch = 0; ch < chans; ch++) {
+                sce = &cpe->ch[ch];
+                coeffs[ch] = sce->coeffs;
+                sce->ics.predictor_present = 0;
+                memset(&sce->ics.prediction_used, 0, sizeof(sce->ics.prediction_used));
+                memset(&sce->tns, 0, sizeof(TemporalNoiseShaping));
+                for (w = 0; w < 128; w++)
+                    if (sce->band_type[w] > RESERVED_BT)
+                        sce->band_type[w] = 0;
+            }
+            s->psy.model->analyze(&s->psy, start_ch, coeffs, wi);
+            for (ch = 0; ch < chans; ch++) {
+                s->cur_channel = start_ch + ch;
+                s->coder->search_for_quantizers(avctx, s, &cpe->ch[ch], s->lambda);
+            }
+            if (chans > 1
+                && wi[0].window_type[0] == wi[1].window_type[0]
+                && wi[0].window_shape   == wi[1].window_shape) {
+
+                cpe->common_window = 1;
+                for (w = 0; w < wi[0].num_windows; w++) {
+                    if (wi[0].grouping[w] != wi[1].grouping[w]) {
+                        cpe->common_window = 0;
+                        break;
+                    }
+                }
+            }
+            for (ch = 0; ch < chans; ch++) { /* TNS and PNS */
+                sce = &cpe->ch[ch];
+                s->cur_channel = start_ch + ch;
+                if (s->options.pns && s->coder->search_for_pns)
+                    s->coder->search_for_pns(s, avctx, sce);
+                if (s->options.tns && s->coder->search_for_tns)
+                    s->coder->search_for_tns(s, sce);
+                if (s->options.tns && s->coder->apply_tns_filt)
+                    s->coder->apply_tns_filt(s, sce);
+                if (sce->tns.present)
+                    tns_mode = 1;
+            }
+            s->cur_channel = start_ch;
+            if (s->options.intensity_stereo) { /* Intensity Stereo */
+                if (s->coder->search_for_is)
+                    s->coder->search_for_is(s, avctx, cpe);
+                if (cpe->is_mode) is_mode = 1;
+                apply_intensity_stereo(cpe);
+            }
+            if (s->options.pred) { /* Prediction */
+                for (ch = 0; ch < chans; ch++) {
+                    sce = &cpe->ch[ch];
+                    s->cur_channel = start_ch + ch;
+                    if (s->options.pred && s->coder->search_for_pred)
+                        s->coder->search_for_pred(s, sce);
+                    if (cpe->ch[ch].ics.predictor_present) pred_mode = 1;
+                }
+                if (s->coder->adjust_common_prediction)
+                    s->coder->adjust_common_prediction(s, cpe);
+                for (ch = 0; ch < chans; ch++) {
+                    sce = &cpe->ch[ch];
+                    s->cur_channel = start_ch + ch;
+                    if (s->options.pred && s->coder->apply_main_pred)
+                        s->coder->apply_main_pred(s, sce);
+                }
+                s->cur_channel = start_ch;
+            }
+            if (s->options.stereo_mode) { /* Mid/Side stereo */
+                if (s->options.stereo_mode == -1 && s->coder->search_for_ms)
+                    s->coder->search_for_ms(s, cpe);
+                else if (cpe->common_window)
+                    memset(cpe->ms_mask, 1, sizeof(cpe->ms_mask));
+                for (w = 0; w < 128; w++)
+                    cpe->ms_mask[w] = cpe->is_mask[w] ? 0 : cpe->ms_mask[w];
+                apply_mid_side_stereo(cpe);
+            }
+            adjust_frame_information(cpe, chans);
+            if (chans == 2) {
+                put_bits(&s->pb, 1, cpe->common_window);
+                if (cpe->common_window) {
+                    put_ics_info(s, &cpe->ch[0].ics);
+                    if (s->coder->encode_main_pred)
+                        s->coder->encode_main_pred(s, &cpe->ch[0]);
+                    encode_ms_info(&s->pb, cpe);
+                    if (cpe->ms_mode) ms_mode = 1;
+                }
+            }
+            for (ch = 0; ch < chans; ch++) {
+                s->cur_channel = start_ch + ch;
+                encode_individual_channel(avctx, s, &cpe->ch[ch], cpe->common_window);
+            }
+            start_ch += chans;
+        }
+
+        frame_bits = put_bits_count(&s->pb);
+        if (frame_bits <= 6144 * s->channels - 3) {
+            s->psy.bitres.bits = frame_bits / s->channels;
+            break;
+        }
+        if (is_mode || ms_mode || tns_mode || pred_mode) {
+            for (i = 0; i < s->chan_map[0]; i++) {
+                // Must restore coeffs
+                chans = tag == TYPE_CPE ? 2 : 1;
+                cpe = &s->cpe[i];
+                for (ch = 0; ch < chans; ch++)
+                    memcpy(cpe->ch[ch].coeffs, cpe->ch[ch].pcoeffs, sizeof(cpe->ch[ch].coeffs));
+            }
+        }
+
+        s->lambda *= avctx->bit_rate * 1024.0f / avctx->sample_rate / frame_bits;
+
+    } while (1);
+
+    put_bits(&s->pb, 3, TYPE_END);
+    flush_put_bits(&s->pb);
+    avctx->frame_bits = put_bits_count(&s->pb);
+
+    // rate control stuff
+    if (!(avctx->flags & AV_CODEC_FLAG_QSCALE)) {
+        float ratio = avctx->bit_rate * 1024.0f / avctx->sample_rate / avctx->frame_bits;
+        s->lambda *= ratio;
+        s->lambda = FFMIN(s->lambda, 65536.f);
+    }
+
+    if (!frame)
+        s->last_frame++;
+
+    ff_af_queue_remove(&s->afq, avctx->frame_size, &avpkt->pts,
+                       &avpkt->duration);
+
+    avpkt->size = put_bits_count(&s->pb) >> 3;
+    *got_packet_ptr = 1;
+    return 0;
+}
+
+static av_cold int aac_encode_end(AVCodecContext *avctx)
+{
+    AACEncContext *s = avctx->priv_data;
+
+    ff_mdct_end(&s->mdct1024);
+    ff_mdct_end(&s->mdct128);
+    ff_psy_end(&s->psy);
+    ff_lpc_end(&s->lpc);
+    if (s->psypp)
+        ff_psy_preprocess_end(s->psypp);
+    av_freep(&s->buffer.samples);
+    av_freep(&s->cpe);
+    av_freep(&s->fdsp);
+    ff_af_queue_close(&s->afq);
+    return 0;
+}
+
+static av_cold int dsp_init(AVCodecContext *avctx, AACEncContext *s)
+{
+    int ret = 0;
+
+    s->fdsp = avpriv_float_dsp_alloc(avctx->flags & AV_CODEC_FLAG_BITEXACT);
+    if (!s->fdsp)
+        return AVERROR(ENOMEM);
+
+    // window init
+    ff_kbd_window_init(ff_aac_kbd_long_1024, 4.0, 1024);
+    ff_kbd_window_init(ff_aac_kbd_short_128, 6.0, 128);
+    ff_init_ff_sine_windows(10);
+    ff_init_ff_sine_windows(7);
+
+    if ((ret = ff_mdct_init(&s->mdct1024, 11, 0, 32768.0)) < 0)
+        return ret;
+    if ((ret = ff_mdct_init(&s->mdct128,   8, 0, 32768.0)) < 0)
+        return ret;
+
+    return 0;
+}
+
+static av_cold int alloc_buffers(AVCodecContext *avctx, AACEncContext *s)
+{
+    int ch;
+    FF_ALLOCZ_ARRAY_OR_GOTO(avctx, s->buffer.samples, s->channels, 3 * 1024 * sizeof(s->buffer.samples[0]), alloc_fail);
+    FF_ALLOCZ_ARRAY_OR_GOTO(avctx, s->cpe, s->chan_map[0], sizeof(ChannelElement), alloc_fail);
+    FF_ALLOCZ_OR_GOTO(avctx, avctx->extradata, 5 + AV_INPUT_BUFFER_PADDING_SIZE, alloc_fail);
+
+    for(ch = 0; ch < s->channels; ch++)
+        s->planar_samples[ch] = s->buffer.samples + 3 * 1024 * ch;
+
+    return 0;
+alloc_fail:
+    return AVERROR(ENOMEM);
+}
+
+static av_cold int aac_encode_init(AVCodecContext *avctx)
+{
+    AACEncContext *s = avctx->priv_data;
+    int i, ret = 0;
+    const uint8_t *sizes[2];
+    uint8_t grouping[AAC_MAX_CHANNELS];
+    int lengths[2];
+
+    avctx->frame_size = 1024;
+
+    for (i = 0; i < 16; i++)
+        if (avctx->sample_rate == avpriv_mpeg4audio_sample_rates[i])
+            break;
+
+    s->channels = avctx->channels;
+
+    ERROR_IF(i == 16 || i >= ff_aac_swb_size_1024_len || i >= ff_aac_swb_size_128_len,
+             "Unsupported sample rate %d\n", avctx->sample_rate);
+    ERROR_IF(s->channels > AAC_MAX_CHANNELS,
+             "Unsupported number of channels: %d\n", s->channels);
+    WARN_IF(1024.0 * avctx->bit_rate / avctx->sample_rate > 6144 * s->channels,
+             "Too many bits per frame requested, clamping to max\n");
+    if (avctx->profile == FF_PROFILE_AAC_MAIN) {
+        s->options.pred = 1;
+    } else if ((avctx->profile == FF_PROFILE_AAC_LOW ||
+                avctx->profile == FF_PROFILE_UNKNOWN) && s->options.pred) {
+        s->profile = 0; /* Main */
+        WARN_IF(1, "Prediction requested, changing profile to AAC-Main\n");
+    } else if (avctx->profile == FF_PROFILE_AAC_LOW ||
+               avctx->profile == FF_PROFILE_UNKNOWN) {
+        s->profile = 1; /* Low */
+    } else {
+        ERROR_IF(1, "Unsupported profile %d\n", avctx->profile);
+    }
+
+    if (s->options.aac_coder != AAC_CODER_TWOLOOP) {
+        s->options.intensity_stereo = 0;
+        s->options.pns = 0;
+    }
+
+    avctx->bit_rate = (int)FFMIN(
+        6144 * s->channels / 1024.0 * avctx->sample_rate,
+        avctx->bit_rate);
+
+    s->samplerate_index = i;
+
+    s->chan_map = aac_chan_configs[s->channels-1];
+
+    if ((ret = dsp_init(avctx, s)) < 0)
+        goto fail;
+
+    if ((ret = alloc_buffers(avctx, s)) < 0)
+        goto fail;
+
+    avctx->extradata_size = 5;
+    put_audio_specific_config(avctx);
+
+    sizes[0]   = ff_aac_swb_size_1024[i];
+    sizes[1]   = ff_aac_swb_size_128[i];
+    lengths[0] = ff_aac_num_swb_1024[i];
+    lengths[1] = ff_aac_num_swb_128[i];
+    for (i = 0; i < s->chan_map[0]; i++)
+        grouping[i] = s->chan_map[i + 1] == TYPE_CPE;
+    if ((ret = ff_psy_init(&s->psy, avctx, 2, sizes, lengths,
+                           s->chan_map[0], grouping)) < 0)
+        goto fail;
+    s->psypp = ff_psy_preprocess_init(avctx);
+    s->coder = &ff_aac_coders[s->options.aac_coder];
+    ff_lpc_init(&s->lpc, 2*avctx->frame_size, TNS_MAX_ORDER, FF_LPC_TYPE_LEVINSON);
+
+    if (HAVE_MIPSDSPR1)
+        ff_aac_coder_init_mips(s);
+
+    s->lambda = avctx->global_quality > 0 ? avctx->global_quality : 120;
+
+    ff_aac_tableinit();
+
+    avctx->initial_padding = 1024;
+    ff_af_queue_init(avctx, &s->afq);
+
+    return 0;
+fail:
+    aac_encode_end(avctx);
+    return ret;
+}
+
+#define AACENC_FLAGS AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_AUDIO_PARAM
+static const AVOption aacenc_options[] = {
+    {"stereo_mode", "Stereo coding method", offsetof(AACEncContext, options.stereo_mode), AV_OPT_TYPE_INT, {.i64 = 0}, -1, 1, AACENC_FLAGS, "stereo_mode"},
+        {"auto",     "Selected by the Encoder", 0, AV_OPT_TYPE_CONST, {.i64 = -1 }, INT_MIN, INT_MAX, AACENC_FLAGS, "stereo_mode"},
+        {"ms_off",   "Disable Mid/Side coding", 0, AV_OPT_TYPE_CONST, {.i64 =  0 }, INT_MIN, INT_MAX, AACENC_FLAGS, "stereo_mode"},
+        {"ms_force", "Force Mid/Side for the whole frame if possible", 0, AV_OPT_TYPE_CONST, {.i64 =  1 }, INT_MIN, INT_MAX, AACENC_FLAGS, "stereo_mode"},
+    {"aac_coder", "Coding algorithm", offsetof(AACEncContext, options.aac_coder), AV_OPT_TYPE_INT, {.i64 = AAC_CODER_TWOLOOP}, 0, AAC_CODER_NB-1, AACENC_FLAGS, "aac_coder"},
+        {"faac",     "FAAC-inspired method",      0, AV_OPT_TYPE_CONST, {.i64 = AAC_CODER_FAAC},    INT_MIN, INT_MAX, AACENC_FLAGS, "aac_coder"},
+        {"anmr",     "ANMR method",               0, AV_OPT_TYPE_CONST, {.i64 = AAC_CODER_ANMR},    INT_MIN, INT_MAX, AACENC_FLAGS, "aac_coder"},
+        {"twoloop",  "Two loop searching method", 0, AV_OPT_TYPE_CONST, {.i64 = AAC_CODER_TWOLOOP}, INT_MIN, INT_MAX, AACENC_FLAGS, "aac_coder"},
+        {"fast",     "Constant quantizer",        0, AV_OPT_TYPE_CONST, {.i64 = AAC_CODER_FAST},    INT_MIN, INT_MAX, AACENC_FLAGS, "aac_coder"},
+    {"aac_pns", "Perceptual Noise Substitution", offsetof(AACEncContext, options.pns), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, AACENC_FLAGS, "aac_pns"},
+        {"disable",  "Disable perceptual noise substitution", 0, AV_OPT_TYPE_CONST, {.i64 =  0 }, INT_MIN, INT_MAX, AACENC_FLAGS, "aac_pns"},
+        {"enable",   "Enable perceptual noise substitution",  0, AV_OPT_TYPE_CONST, {.i64 =  1 }, INT_MIN, INT_MAX, AACENC_FLAGS, "aac_pns"},
+    {"aac_is", "Intensity stereo coding", offsetof(AACEncContext, options.intensity_stereo), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, AACENC_FLAGS, "intensity_stereo"},
+        {"disable",  "Disable intensity stereo coding", 0, AV_OPT_TYPE_CONST, {.i64 = 0}, INT_MIN, INT_MAX, AACENC_FLAGS, "intensity_stereo"},
+        {"enable",   "Enable intensity stereo coding", 0, AV_OPT_TYPE_CONST, {.i64 = 1}, INT_MIN, INT_MAX, AACENC_FLAGS, "intensity_stereo"},
+    {"aac_tns", "Temporal noise shaping", offsetof(AACEncContext, options.tns), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, AACENC_FLAGS, "aac_tns"},
+        {"disable",  "Disable temporal noise shaping", 0, AV_OPT_TYPE_CONST, {.i64 = 0}, INT_MIN, INT_MAX, AACENC_FLAGS, "aac_tns"},
+        {"enable",   "Enable temporal noise shaping", 0, AV_OPT_TYPE_CONST, {.i64 = 1}, INT_MIN, INT_MAX, AACENC_FLAGS, "aac_tns"},
+    {"aac_pred", "AAC-Main prediction", offsetof(AACEncContext, options.pred), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, AACENC_FLAGS, "aac_pred"},
+        {"disable",  "Disable AAC-Main prediction", 0, AV_OPT_TYPE_CONST, {.i64 = 0}, INT_MIN, INT_MAX, AACENC_FLAGS, "aac_pred"},
+        {"enable",   "Enable AAC-Main prediction", 0, AV_OPT_TYPE_CONST, {.i64 = 1}, INT_MIN, INT_MAX, AACENC_FLAGS, "aac_pred"},
+    {NULL}
+};
+
+static const AVClass aacenc_class = {
+    "AAC encoder",
+    av_default_item_name,
+    aacenc_options,
+    LIBAVUTIL_VERSION_INT,
+};
+
+AVCodec ff_aac_encoder = {
+    .name           = "aac",
+    .long_name      = NULL_IF_CONFIG_SMALL("AAC (Advanced Audio Coding)"),
+    .type           = AVMEDIA_TYPE_AUDIO,
+    .id             = AV_CODEC_ID_AAC,
+    .priv_data_size = sizeof(AACEncContext),
+    .init           = aac_encode_init,
+    .encode2        = aac_encode_frame,
+    .close          = aac_encode_end,
+    .supported_samplerates = mpeg4audio_sample_rates,
+    .capabilities   = AV_CODEC_CAP_SMALL_LAST_FRAME | AV_CODEC_CAP_DELAY |
+                      AV_CODEC_CAP_EXPERIMENTAL,
+    .sample_fmts    = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_FLTP,
+                                                     AV_SAMPLE_FMT_NONE },
+    .priv_class     = &aacenc_class,
+};

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacenc.h

@@ -0,0 +1,113 @@
+/*
+ * AAC encoder
+ * Copyright (C) 2008 Konstantin Shishkov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AACENC_H
+#define AVCODEC_AACENC_H
+
+#include "libavutil/float_dsp.h"
+#include "avcodec.h"
+#include "put_bits.h"
+
+#include "aac.h"
+#include "audio_frame_queue.h"
+#include "psymodel.h"
+
+#include "lpc.h"
+
+typedef enum AACCoder {
+    AAC_CODER_FAAC = 0,
+    AAC_CODER_ANMR,
+    AAC_CODER_TWOLOOP,
+    AAC_CODER_FAST,
+
+    AAC_CODER_NB,
+}AACCoder;
+
+typedef struct AACEncOptions {
+    int stereo_mode;
+    int aac_coder;
+    int pns;
+    int tns;
+    int pred;
+    int intensity_stereo;
+} AACEncOptions;
+
+struct AACEncContext;
+
+typedef struct AACCoefficientsEncoder {
+    void (*search_for_quantizers)(AVCodecContext *avctx, struct AACEncContext *s,
+                                  SingleChannelElement *sce, const float lambda);
+    void (*encode_window_bands_info)(struct AACEncContext *s, SingleChannelElement *sce,
+                                     int win, int group_len, const float lambda);
+    void (*quantize_and_encode_band)(struct AACEncContext *s, PutBitContext *pb, const float *in, float *out, int size,
+                                     int scale_idx, int cb, const float lambda, int rtz);
+    void (*encode_tns_info)(struct AACEncContext *s, SingleChannelElement *sce);
+    void (*encode_main_pred)(struct AACEncContext *s, SingleChannelElement *sce);
+    void (*adjust_common_prediction)(struct AACEncContext *s, ChannelElement *cpe);
+    void (*apply_main_pred)(struct AACEncContext *s, SingleChannelElement *sce);
+    void (*apply_tns_filt)(struct AACEncContext *s, SingleChannelElement *sce);
+    void (*set_special_band_scalefactors)(struct AACEncContext *s, SingleChannelElement *sce);
+    void (*search_for_pns)(struct AACEncContext *s, AVCodecContext *avctx, SingleChannelElement *sce);
+    void (*search_for_tns)(struct AACEncContext *s, SingleChannelElement *sce);
+    void (*search_for_ms)(struct AACEncContext *s, ChannelElement *cpe);
+    void (*search_for_is)(struct AACEncContext *s, AVCodecContext *avctx, ChannelElement *cpe);
+    void (*search_for_pred)(struct AACEncContext *s, SingleChannelElement *sce);
+} AACCoefficientsEncoder;
+
+extern AACCoefficientsEncoder ff_aac_coders[];
+
+/**
+ * AAC encoder context
+ */
+typedef struct AACEncContext {
+    AVClass *av_class;
+    AACEncOptions options;                       ///< encoding options
+    PutBitContext pb;
+    FFTContext mdct1024;                         ///< long (1024 samples) frame transform context
+    FFTContext mdct128;                          ///< short (128 samples) frame transform context
+    AVFloatDSPContext *fdsp;
+    float *planar_samples[6];                    ///< saved preprocessed input
+
+    int profile;                                 ///< copied from avctx
+    LPCContext lpc;                              ///< used by TNS
+    int samplerate_index;                        ///< MPEG-4 samplerate index
+    int channels;                                ///< channel count
+    const uint8_t *chan_map;                     ///< channel configuration map
+
+    ChannelElement *cpe;                         ///< channel elements
+    FFPsyContext psy;
+    struct FFPsyPreprocessContext* psypp;
+    AACCoefficientsEncoder *coder;
+    int cur_channel;
+    int last_frame;
+    float lambda;
+    AudioFrameQueue afq;
+    DECLARE_ALIGNED(16, int,   qcoefs)[96];      ///< quantized coefficients
+    DECLARE_ALIGNED(32, float, scoefs)[1024];    ///< scaled coefficients
+
+    struct {
+        float *samples;
+    } buffer;
+} AACEncContext;
+
+void ff_aac_coder_init_mips(AACEncContext *c);
+
+#endif /* AVCODEC_AACENC_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacenc_is.c

@@ -0,0 +1,136 @@
+/*
+ * AAC encoder intensity stereo
+ * Copyright (C) 2015 Rostislav Pehlivanov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC encoder Intensity Stereo
+ * @author Rostislav Pehlivanov ( atomnuker gmail com )
+ */
+
+#include "aacenc.h"
+#include "aacenc_utils.h"
+#include "aacenc_is.h"
+#include "aacenc_quantization.h"
+
+struct AACISError ff_aac_is_encoding_err(AACEncContext *s, ChannelElement *cpe,
+                                         int start, int w, int g, float ener0,
+                                         float ener1, float ener01,
+                                         int use_pcoeffs, int phase)
+{
+    int i, w2;
+    SingleChannelElement *sce0 = &cpe->ch[0];
+    SingleChannelElement *sce1 = &cpe->ch[1];
+    float *L = use_pcoeffs ? sce0->pcoeffs : sce0->coeffs;
+    float *R = use_pcoeffs ? sce1->pcoeffs : sce1->coeffs;
+    float *L34 = &s->scoefs[256*0], *R34 = &s->scoefs[256*1];
+    float *IS  = &s->scoefs[256*2], *I34 = &s->scoefs[256*3];
+    float dist1 = 0.0f, dist2 = 0.0f;
+    struct AACISError is_error = {0};
+
+    for (w2 = 0; w2 < sce0->ics.group_len[w]; w2++) {
+        FFPsyBand *band0 = &s->psy.ch[s->cur_channel+0].psy_bands[(w+w2)*16+g];
+        FFPsyBand *band1 = &s->psy.ch[s->cur_channel+1].psy_bands[(w+w2)*16+g];
+        int is_band_type, is_sf_idx = FFMAX(1, sce0->sf_idx[(w+w2)*16+g]-4);
+        float e01_34 = phase*pow(ener1/ener0, 3.0/4.0);
+        float maxval, dist_spec_err = 0.0f;
+        float minthr = FFMIN(band0->threshold, band1->threshold);
+        for (i = 0; i < sce0->ics.swb_sizes[g]; i++)
+            IS[i] = (L[start+(w+w2)*128+i] + phase*R[start+(w+w2)*128+i])*sqrt(ener0/ener01);
+        abs_pow34_v(L34, &L[start+(w+w2)*128], sce0->ics.swb_sizes[g]);
+        abs_pow34_v(R34, &R[start+(w+w2)*128], sce0->ics.swb_sizes[g]);
+        abs_pow34_v(I34, IS,                   sce0->ics.swb_sizes[g]);
+        maxval = find_max_val(1, sce0->ics.swb_sizes[g], I34);
+        is_band_type = find_min_book(maxval, is_sf_idx);
+        dist1 += quantize_band_cost(s, &L[start + (w+w2)*128], L34,
+                                    sce0->ics.swb_sizes[g],
+                                    sce0->sf_idx[(w+w2)*16+g],
+                                    sce0->band_type[(w+w2)*16+g],
+                                    s->lambda / band0->threshold, INFINITY, NULL, 0);
+        dist1 += quantize_band_cost(s, &R[start + (w+w2)*128], R34,
+                                    sce1->ics.swb_sizes[g],
+                                    sce1->sf_idx[(w+w2)*16+g],
+                                    sce1->band_type[(w+w2)*16+g],
+                                    s->lambda / band1->threshold, INFINITY, NULL, 0);
+        dist2 += quantize_band_cost(s, IS, I34, sce0->ics.swb_sizes[g],
+                                    is_sf_idx, is_band_type,
+                                    s->lambda / minthr, INFINITY, NULL, 0);
+        for (i = 0; i < sce0->ics.swb_sizes[g]; i++) {
+            dist_spec_err += (L34[i] - I34[i])*(L34[i] - I34[i]);
+            dist_spec_err += (R34[i] - I34[i]*e01_34)*(R34[i] - I34[i]*e01_34);
+        }
+        dist_spec_err *= s->lambda / minthr;
+        dist2 += dist_spec_err;
+    }
+
+    is_error.pass = dist2 <= dist1;
+    is_error.phase = phase;
+    is_error.error = fabsf(dist1 - dist2);
+    is_error.dist1 = dist1;
+    is_error.dist2 = dist2;
+
+    return is_error;
+}
+
+void ff_aac_search_for_is(AACEncContext *s, AVCodecContext *avctx, ChannelElement *cpe)
+{
+    SingleChannelElement *sce0 = &cpe->ch[0];
+    SingleChannelElement *sce1 = &cpe->ch[1];
+    int start = 0, count = 0, w, w2, g, i;
+    const float freq_mult = avctx->sample_rate/(1024.0f/sce0->ics.num_windows)/2.0f;
+
+    if (!cpe->common_window)
+        return;
+
+    for (w = 0; w < sce0->ics.num_windows; w += sce0->ics.group_len[w]) {
+        start = 0;
+        for (g = 0;  g < sce0->ics.num_swb; g++) {
+            if (start*freq_mult > INT_STEREO_LOW_LIMIT*(s->lambda/170.0f) &&
+                cpe->ch[0].band_type[w*16+g] != NOISE_BT && !cpe->ch[0].zeroes[w*16+g] &&
+                cpe->ch[1].band_type[w*16+g] != NOISE_BT && !cpe->ch[1].zeroes[w*16+g]) {
+                float ener0 = 0.0f, ener1 = 0.0f, ener01 = 0.0f;
+                struct AACISError ph_err1, ph_err2, *erf;
+                for (w2 = 0; w2 < sce0->ics.group_len[w]; w2++) {
+                    for (i = 0; i < sce0->ics.swb_sizes[g]; i++) {
+                        float coef0 = sce0->pcoeffs[start+(w+w2)*128+i];
+                        float coef1 = sce1->pcoeffs[start+(w+w2)*128+i];
+                        ener0  += coef0*coef0;
+                        ener1  += coef1*coef1;
+                        ener01 += (coef0 + coef1)*(coef0 + coef1);
+                    }
+                }
+                ph_err1 = ff_aac_is_encoding_err(s, cpe, start, w, g,
+                                                 ener0, ener1, ener01, 0, -1);
+                ph_err2 = ff_aac_is_encoding_err(s, cpe, start, w, g,
+                                                 ener0, ener1, ener01, 0, +1);
+                erf = ph_err1.error < ph_err2.error ? &ph_err1 : &ph_err2;
+                if (erf->pass) {
+                    cpe->is_mask[w*16+g] = 1;
+                    cpe->ch[0].is_ener[w*16+g] = sqrt(ener0/ener01);
+                    cpe->ch[1].is_ener[w*16+g] = ener0/ener1;
+                    cpe->ch[1].band_type[w*16+g] = erf->phase ? INTENSITY_BT : INTENSITY_BT2;
+                    count++;
+                }
+            }
+            start += sce0->ics.swb_sizes[g];
+        }
+    }
+    cpe->is_mode = !!count;
+}

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacenc_is.h

@@ -0,0 +1,50 @@
+/*
+ * AAC encoder intensity stereo
+ * Copyright (C) 2015 Rostislav Pehlivanov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC encoder Intensity Stereo
+ * @author Rostislav Pehlivanov ( atomnuker gmail com )
+ */
+
+#ifndef AVCODEC_AACENC_IS_H
+#define AVCODEC_AACENC_IS_H
+
+#include "aacenc.h"
+
+/** Frequency in Hz for lower limit of intensity stereo **/
+#define INT_STEREO_LOW_LIMIT 6100
+
+struct AACISError {
+    int pass;    /* 1 if dist2 <= dist1  */
+    int phase;   /* -1 or +1             */
+    float error; /* fabs(dist1 - dist2)  */
+    float dist1; /* From original coeffs */
+    float dist2; /* From IS'd coeffs     */
+};
+
+struct AACISError ff_aac_is_encoding_err(AACEncContext *s, ChannelElement *cpe,
+                                         int start, int w, int g, float ener0,
+                                         float ener1, float ener01,
+                                         int use_pcoeffs, int phase);
+void ff_aac_search_for_is(AACEncContext *s, AVCodecContext *avctx, ChannelElement *cpe);
+
+#endif /* AVCODEC_AACENC_IS_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacenc_pred.c

@@ -0,0 +1,342 @@
+/*
+ * AAC encoder main-type prediction
+ * Copyright (C) 2015 Rostislav Pehlivanov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC encoder Intensity Stereo
+ * @author Rostislav Pehlivanov ( atomnuker gmail com )
+ */
+
+#include "aactab.h"
+#include "aacenc_pred.h"
+#include "aacenc_utils.h"
+#include "aacenc_is.h"            /* <- Needed for common window distortions */
+#include "aacenc_quantization.h"
+
+#define RESTORE_PRED(sce, sfb) \
+        if (sce->ics.prediction_used[sfb]) {\
+            sce->ics.prediction_used[sfb] = 0;\
+            sce->band_type[sfb] = sce->band_alt[sfb];\
+        }
+
+static inline float flt16_round(float pf)
+{
+    union av_intfloat32 tmp;
+    tmp.f = pf;
+    tmp.i = (tmp.i + 0x00008000U) & 0xFFFF0000U;
+    return tmp.f;
+}
+
+static inline float flt16_even(float pf)
+{
+    union av_intfloat32 tmp;
+    tmp.f = pf;
+    tmp.i = (tmp.i + 0x00007FFFU + (tmp.i & 0x00010000U >> 16)) & 0xFFFF0000U;
+    return tmp.f;
+}
+
+static inline float flt16_trunc(float pf)
+{
+    union av_intfloat32 pun;
+    pun.f = pf;
+    pun.i &= 0xFFFF0000U;
+    return pun.f;
+}
+
+static inline void predict(PredictorState *ps, float *coef, float *rcoef, int set)
+{
+    float k2;
+    const float a     = 0.953125; // 61.0 / 64
+    const float alpha = 0.90625;  // 29.0 / 32
+    const float   k1 = ps->k1;
+    const float   r0 = ps->r0,     r1 = ps->r1;
+    const float cor0 = ps->cor0, cor1 = ps->cor1;
+    const float var0 = ps->var0, var1 = ps->var1;
+    const float e0 = *coef - ps->x_est;
+    const float e1 = e0 - k1 * r0;
+
+    if (set)
+        *coef = e0;
+
+    ps->cor1 = flt16_trunc(alpha * cor1 + r1 * e1);
+    ps->var1 = flt16_trunc(alpha * var1 + 0.5f * (r1 * r1 + e1 * e1));
+    ps->cor0 = flt16_trunc(alpha * cor0 + r0 * e0);
+    ps->var0 = flt16_trunc(alpha * var0 + 0.5f * (r0 * r0 + e0 * e0));
+    ps->r1   = flt16_trunc(a * (r0 - k1 * e0));
+    ps->r0   = flt16_trunc(a * e0);
+
+    /* Prediction for next frame */
+    ps->k1   = ps->var0 > 1 ? ps->cor0 * flt16_even(a / ps->var0) : 0;
+    k2       = ps->var1 > 1 ? ps->cor1 * flt16_even(a / ps->var1) : 0;
+    *rcoef   = ps->x_est = flt16_round(ps->k1*ps->r0 + k2*ps->r1);
+}
+
+static inline void reset_predict_state(PredictorState *ps)
+{
+    ps->r0    = 0.0f;
+    ps->r1    = 0.0f;
+    ps->k1    = 0.0f;
+    ps->cor0  = 0.0f;
+    ps->cor1  = 0.0f;
+    ps->var0  = 1.0f;
+    ps->var1  = 1.0f;
+    ps->x_est = 0.0f;
+}
+
+static inline void reset_all_predictors(PredictorState *ps)
+{
+    int i;
+    for (i = 0; i < MAX_PREDICTORS; i++)
+        reset_predict_state(&ps[i]);
+}
+
+static inline void reset_predictor_group(SingleChannelElement *sce, int group_num)
+{
+    int i;
+    PredictorState *ps = sce->predictor_state;
+    for (i = group_num - 1; i < MAX_PREDICTORS; i += 30)
+        reset_predict_state(&ps[i]);
+}
+
+void ff_aac_apply_main_pred(AACEncContext *s, SingleChannelElement *sce)
+{
+    int sfb, k;
+    const int pmax = FFMIN(sce->ics.max_sfb, ff_aac_pred_sfb_max[s->samplerate_index]);
+
+    if (sce->ics.window_sequence[0] != EIGHT_SHORT_SEQUENCE) {
+        for (sfb = 0; sfb < pmax; sfb++) {
+            for (k = sce->ics.swb_offset[sfb]; k < sce->ics.swb_offset[sfb + 1]; k++) {
+                predict(&sce->predictor_state[k], &sce->coeffs[k], &sce->prcoeffs[k],
+                        sce->ics.predictor_present && sce->ics.prediction_used[sfb]);
+            }
+        }
+        if (sce->ics.predictor_reset_group) {
+            reset_predictor_group(sce, sce->ics.predictor_reset_group);
+        }
+    } else {
+        reset_all_predictors(sce->predictor_state);
+    }
+}
+
+/* If inc = 0 you can check if this returns 0 to see if you can reset freely */
+static inline int update_counters(IndividualChannelStream *ics, int inc)
+{
+    int i;
+    for (i = 1; i < 31; i++) {
+        ics->predictor_reset_count[i] += inc;
+        if (ics->predictor_reset_count[i] > PRED_RESET_FRAME_MIN)
+            return i; /* Reset this immediately */
+    }
+    return 0;
+}
+
+void ff_aac_adjust_common_prediction(AACEncContext *s, ChannelElement *cpe)
+{
+    int start, w, w2, g, i, count = 0;
+    SingleChannelElement *sce0 = &cpe->ch[0];
+    SingleChannelElement *sce1 = &cpe->ch[1];
+    const int pmax0 = FFMIN(sce0->ics.max_sfb, ff_aac_pred_sfb_max[s->samplerate_index]);
+    const int pmax1 = FFMIN(sce1->ics.max_sfb, ff_aac_pred_sfb_max[s->samplerate_index]);
+    const int pmax  = FFMIN(pmax0, pmax1);
+
+    if (!cpe->common_window ||
+        sce0->ics.window_sequence[0] == EIGHT_SHORT_SEQUENCE ||
+        sce1->ics.window_sequence[0] == EIGHT_SHORT_SEQUENCE)
+        return;
+
+    for (w = 0; w < sce0->ics.num_windows; w += sce0->ics.group_len[w]) {
+        start = 0;
+        for (g = 0; g < sce0->ics.num_swb; g++) {
+            int sfb = w*16+g;
+            int sum = sce0->ics.prediction_used[sfb] + sce1->ics.prediction_used[sfb];
+            float ener0 = 0.0f, ener1 = 0.0f, ener01 = 0.0f;
+            struct AACISError ph_err1, ph_err2, *erf;
+            if (sfb < PRED_SFB_START || sfb > pmax || sum != 2) {
+                RESTORE_PRED(sce0, sfb);
+                RESTORE_PRED(sce1, sfb);
+                start += sce0->ics.swb_sizes[g];
+                continue;
+            }
+            for (w2 = 0; w2 < sce0->ics.group_len[w]; w2++) {
+                for (i = 0; i < sce0->ics.swb_sizes[g]; i++) {
+                    float coef0 = sce0->pcoeffs[start+(w+w2)*128+i];
+                    float coef1 = sce1->pcoeffs[start+(w+w2)*128+i];
+                    ener0  += coef0*coef0;
+                    ener1  += coef1*coef1;
+                    ener01 += (coef0 + coef1)*(coef0 + coef1);
+                }
+            }
+            ph_err1 = ff_aac_is_encoding_err(s, cpe, start, w, g,
+                                             ener0, ener1, ener01, 1, -1);
+            ph_err2 = ff_aac_is_encoding_err(s, cpe, start, w, g,
+                                             ener0, ener1, ener01, 1, +1);
+            erf = ph_err1.error < ph_err2.error ? &ph_err1 : &ph_err2;
+            if (erf->pass) {
+                sce0->ics.prediction_used[sfb] = 1;
+                sce1->ics.prediction_used[sfb] = 1;
+                count++;
+            } else {
+                RESTORE_PRED(sce0, sfb);
+                RESTORE_PRED(sce1, sfb);
+            }
+            start += sce0->ics.swb_sizes[g];
+        }
+    }
+
+    sce1->ics.predictor_present = sce0->ics.predictor_present = !!count;
+}
+
+static void update_pred_resets(SingleChannelElement *sce)
+{
+    int i, max_group_id_c, max_frame = 0;
+    float avg_frame = 0.0f;
+    IndividualChannelStream *ics = &sce->ics;
+
+    /* Update the counters and immediately update any frame behind schedule */
+    if ((ics->predictor_reset_group = update_counters(&sce->ics, 1)))
+        return;
+
+    for (i = 1; i < 31; i++) {
+        /* Count-based */
+        if (ics->predictor_reset_count[i] > max_frame) {
+            max_group_id_c = i;
+            max_frame = ics->predictor_reset_count[i];
+        }
+        avg_frame = (ics->predictor_reset_count[i] + avg_frame)/2;
+    }
+
+    if (max_frame > PRED_RESET_MIN) {
+        ics->predictor_reset_group = max_group_id_c;
+    } else {
+        ics->predictor_reset_group = 0;
+    }
+}
+
+void ff_aac_search_for_pred(AACEncContext *s, SingleChannelElement *sce)
+{
+    int sfb, i, count = 0, cost_coeffs = 0, cost_pred = 0;
+    const int pmax = FFMIN(sce->ics.max_sfb, ff_aac_pred_sfb_max[s->samplerate_index]);
+    float *O34  = &s->scoefs[128*0], *P34 = &s->scoefs[128*1];
+    float *SENT = &s->scoefs[128*2], *S34 = &s->scoefs[128*3];
+    float *QERR = &s->scoefs[128*4];
+
+    if (sce->ics.window_sequence[0] == EIGHT_SHORT_SEQUENCE) {
+        sce->ics.predictor_present = 0;
+        return;
+    }
+
+    if (!sce->ics.predictor_initialized) {
+        reset_all_predictors(sce->predictor_state);
+        sce->ics.predictor_initialized = 1;
+        memcpy(sce->prcoeffs, sce->coeffs, 1024*sizeof(float));
+        for (i = 1; i < 31; i++)
+            sce->ics.predictor_reset_count[i] = i;
+    }
+
+    update_pred_resets(sce);
+    memcpy(sce->band_alt, sce->band_type, sizeof(sce->band_type));
+
+    for (sfb = PRED_SFB_START; sfb < pmax; sfb++) {
+        int cost1, cost2, cb_p;
+        float dist1, dist2, dist_spec_err = 0.0f;
+        const int cb_n = sce->band_type[sfb];
+        const int start_coef = sce->ics.swb_offset[sfb];
+        const int num_coeffs = sce->ics.swb_offset[sfb + 1] - start_coef;
+        const FFPsyBand *band = &s->psy.ch[s->cur_channel].psy_bands[sfb];
+
+        if (start_coef + num_coeffs > MAX_PREDICTORS)
+            continue;
+
+        /* Normal coefficients */
+        abs_pow34_v(O34, &sce->coeffs[start_coef], num_coeffs);
+        dist1 = quantize_and_encode_band_cost(s, NULL, &sce->coeffs[start_coef], NULL,
+                                              O34, num_coeffs, sce->sf_idx[sfb],
+                                              cb_n, s->lambda / band->threshold, INFINITY, &cost1, 0);
+        cost_coeffs += cost1;
+
+        /* Encoded coefficients - needed for #bits, band type and quant. error */
+        for (i = 0; i < num_coeffs; i++)
+            SENT[i] = sce->coeffs[start_coef + i] - sce->prcoeffs[start_coef + i];
+        abs_pow34_v(S34, SENT, num_coeffs);
+        if (cb_n < RESERVED_BT)
+            cb_p = find_min_book(find_max_val(1, num_coeffs, S34), sce->sf_idx[sfb]);
+        else
+            cb_p = cb_n;
+        quantize_and_encode_band_cost(s, NULL, SENT, QERR, S34, num_coeffs,
+                                      sce->sf_idx[sfb], cb_p, s->lambda / band->threshold, INFINITY,
+                                      &cost2, 0);
+
+        /* Reconstructed coefficients - needed for distortion measurements */
+        for (i = 0; i < num_coeffs; i++)
+            sce->prcoeffs[start_coef + i] += QERR[i] != 0.0f ? (sce->prcoeffs[start_coef + i] - QERR[i]) : 0.0f;
+        abs_pow34_v(P34, &sce->prcoeffs[start_coef], num_coeffs);
+        if (cb_n < RESERVED_BT)
+            cb_p = find_min_book(find_max_val(1, num_coeffs, P34), sce->sf_idx[sfb]);
+        else
+            cb_p = cb_n;
+        dist2 = quantize_and_encode_band_cost(s, NULL, &sce->prcoeffs[start_coef], NULL,
+                                              P34, num_coeffs, sce->sf_idx[sfb],
+                                              cb_p, s->lambda / band->threshold, INFINITY, NULL, 0);
+        for (i = 0; i < num_coeffs; i++)
+            dist_spec_err += (O34[i] - P34[i])*(O34[i] - P34[i]);
+        dist_spec_err *= s->lambda / band->threshold;
+        dist2 += dist_spec_err;
+
+        if (dist2 <= dist1 && cb_p <= cb_n) {
+            cost_pred += cost2;
+            sce->ics.prediction_used[sfb] = 1;
+            sce->band_alt[sfb]  = cb_n;
+            sce->band_type[sfb] = cb_p;
+            count++;
+        } else {
+            cost_pred += cost1;
+            sce->band_alt[sfb] = cb_p;
+        }
+    }
+
+    if (count && cost_coeffs < cost_pred) {
+        count = 0;
+        for (sfb = PRED_SFB_START; sfb < pmax; sfb++)
+            RESTORE_PRED(sce, sfb);
+        memset(&sce->ics.prediction_used, 0, sizeof(sce->ics.prediction_used));
+    }
+
+    sce->ics.predictor_present = !!count;
+}
+
+/**
+ * Encoder predictors data.
+ */
+void ff_aac_encode_main_pred(AACEncContext *s, SingleChannelElement *sce)
+{
+    int sfb;
+    IndividualChannelStream *ics = &sce->ics;
+    const int pmax = FFMIN(ics->max_sfb, ff_aac_pred_sfb_max[s->samplerate_index]);
+
+    if (!ics->predictor_present)
+        return;
+
+    put_bits(&s->pb, 1, !!ics->predictor_reset_group);
+    if (ics->predictor_reset_group)
+        put_bits(&s->pb, 5, ics->predictor_reset_group);
+    for (sfb = 0; sfb < pmax; sfb++)
+        put_bits(&s->pb, 1, ics->prediction_used[sfb]);
+}

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacenc_pred.h

@@ -0,0 +1,47 @@
+/*
+ * AAC encoder main-type prediction
+ * Copyright (C) 2015 Rostislav Pehlivanov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC encoder main prediction
+ * @author Rostislav Pehlivanov ( atomnuker gmail com )
+ */
+
+#ifndef AVCODEC_AACENC_PRED_H
+#define AVCODEC_AACENC_PRED_H
+
+#include "aacenc.h"
+
+/* Every predictor group needs to get reset at least once in this many frames */
+#define PRED_RESET_FRAME_MIN 240
+
+/* Any frame with less than this amount of frames since last reset is ok */
+#define PRED_RESET_MIN 64
+
+/* Raise to filter any low frequency artifacts due to prediction */
+#define PRED_SFB_START 10
+
+void ff_aac_apply_main_pred(AACEncContext *s, SingleChannelElement *sce);
+void ff_aac_adjust_common_prediction(AACEncContext *s, ChannelElement *cpe);
+void ff_aac_search_for_pred(AACEncContext *s, SingleChannelElement *sce);
+void ff_aac_encode_main_pred(AACEncContext *s, SingleChannelElement *sce);
+
+#endif /* AVCODEC_AACENC_PRED_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacenc_quantization.h

@@ -0,0 +1,260 @@
+/*
+ * AAC encoder intensity stereo
+ * Copyright (C) 2015 Rostislav Pehlivanov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC encoder quantizer
+ * @author Rostislav Pehlivanov ( atomnuker gmail com )
+ */
+
+#ifndef AVCODEC_AACENC_QUANTIZATION_H
+#define AVCODEC_AACENC_QUANTIZATION_H
+
+#include "aactab.h"
+#include "aacenc.h"
+#include "aacenctab.h"
+#include "aacenc_utils.h"
+
+/**
+ * Calculate rate distortion cost for quantizing with given codebook
+ *
+ * @return quantization distortion
+ */
+static av_always_inline float quantize_and_encode_band_cost_template(
+                                struct AACEncContext *s,
+                                PutBitContext *pb, const float *in, float *out,
+                                const float *scaled, int size, int scale_idx,
+                                int cb, const float lambda, const float uplim,
+                                int *bits, int BT_ZERO, int BT_UNSIGNED,
+                                int BT_PAIR, int BT_ESC, int BT_NOISE, int BT_STEREO,
+                                const float ROUNDING)
+{
+    const int q_idx = POW_SF2_ZERO - scale_idx + SCALE_ONE_POS - SCALE_DIV_512;
+    const float Q   = ff_aac_pow2sf_tab [q_idx];
+    const float Q34 = ff_aac_pow34sf_tab[q_idx];
+    const float IQ  = ff_aac_pow2sf_tab [POW_SF2_ZERO + scale_idx - SCALE_ONE_POS + SCALE_DIV_512];
+    const float CLIPPED_ESCAPE = 165140.0f*IQ;
+    int i, j;
+    float cost = 0;
+    const int dim = BT_PAIR ? 2 : 4;
+    int resbits = 0;
+    int off;
+
+    if (BT_ZERO || BT_NOISE || BT_STEREO) {
+        for (i = 0; i < size; i++)
+            cost += in[i]*in[i];
+        if (bits)
+            *bits = 0;
+        if (out) {
+            for (i = 0; i < size; i += dim)
+                for (j = 0; j < dim; j++)
+                    out[i+j] = 0.0f;
+        }
+        return cost * lambda;
+    }
+    if (!scaled) {
+        abs_pow34_v(s->scoefs, in, size);
+        scaled = s->scoefs;
+    }
+    quantize_bands(s->qcoefs, in, scaled, size, Q34, !BT_UNSIGNED, aac_cb_maxval[cb], ROUNDING);
+    if (BT_UNSIGNED) {
+        off = 0;
+    } else {
+        off = aac_cb_maxval[cb];
+    }
+    for (i = 0; i < size; i += dim) {
+        const float *vec;
+        int *quants = s->qcoefs + i;
+        int curidx = 0;
+        int curbits;
+        float quantized, rd = 0.0f;
+        for (j = 0; j < dim; j++) {
+            curidx *= aac_cb_range[cb];
+            curidx += quants[j] + off;
+        }
+        curbits =  ff_aac_spectral_bits[cb-1][curidx];
+        vec     = &ff_aac_codebook_vectors[cb-1][curidx*dim];
+        if (BT_UNSIGNED) {
+            for (j = 0; j < dim; j++) {
+                float t = fabsf(in[i+j]);
+                float di;
+                if (BT_ESC && vec[j] == 64.0f) { //FIXME: slow
+                    if (t >= CLIPPED_ESCAPE) {
+                        quantized = CLIPPED_ESCAPE;
+                        curbits += 21;
+                    } else {
+                        int c = av_clip_uintp2(quant(t, Q, ROUNDING), 13);
+                        quantized = c*cbrtf(c)*IQ;
+                        curbits += av_log2(c)*2 - 4 + 1;
+                    }
+                } else {
+                    quantized = vec[j]*IQ;
+                }
+                di = t - quantized;
+                if (out)
+                    out[i+j] = in[i+j] >= 0 ? quantized : -quantized;
+                if (vec[j] != 0.0f)
+                    curbits++;
+                rd += di*di;
+            }
+        } else {
+            for (j = 0; j < dim; j++) {
+                quantized = vec[j]*IQ;
+                if (out)
+                    out[i+j] = quantized;
+                rd += (in[i+j] - quantized)*(in[i+j] - quantized);
+            }
+        }
+        cost    += rd * lambda + curbits;
+        resbits += curbits;
+        if (cost >= uplim)
+            return uplim;
+        if (pb) {
+            put_bits(pb, ff_aac_spectral_bits[cb-1][curidx], ff_aac_spectral_codes[cb-1][curidx]);
+            if (BT_UNSIGNED)
+                for (j = 0; j < dim; j++)
+                    if (ff_aac_codebook_vectors[cb-1][curidx*dim+j] != 0.0f)
+                        put_bits(pb, 1, in[i+j] < 0.0f);
+            if (BT_ESC) {
+                for (j = 0; j < 2; j++) {
+                    if (ff_aac_codebook_vectors[cb-1][curidx*2+j] == 64.0f) {
+                        int coef = av_clip_uintp2(quant(fabsf(in[i+j]), Q, ROUNDING), 13);
+                        int len = av_log2(coef);
+
+                        put_bits(pb, len - 4 + 1, (1 << (len - 4 + 1)) - 2);
+                        put_sbits(pb, len, coef);
+                    }
+                }
+            }
+        }
+    }
+
+    if (bits)
+        *bits = resbits;
+    return cost;
+}
+
+static inline float quantize_and_encode_band_cost_NONE(struct AACEncContext *s, PutBitContext *pb,
+                                                const float *in, float *quant, const float *scaled,
+                                                int size, int scale_idx, int cb,
+                                                const float lambda, const float uplim,
+                                                int *bits) {
+    av_assert0(0);
+    return 0.0f;
+}
+
+#define QUANTIZE_AND_ENCODE_BAND_COST_FUNC(NAME, BT_ZERO, BT_UNSIGNED, BT_PAIR, BT_ESC, BT_NOISE, BT_STEREO, ROUNDING) \
+static float quantize_and_encode_band_cost_ ## NAME(                                         \
+                                struct AACEncContext *s,                                     \
+                                PutBitContext *pb, const float *in, float *quant,            \
+                                const float *scaled, int size, int scale_idx,                \
+                                int cb, const float lambda, const float uplim,               \
+                                int *bits) {                                                 \
+    return quantize_and_encode_band_cost_template(                                           \
+                                s, pb, in, quant, scaled, size, scale_idx,                   \
+                                BT_ESC ? ESC_BT : cb, lambda, uplim, bits,                   \
+                                BT_ZERO, BT_UNSIGNED, BT_PAIR, BT_ESC, BT_NOISE, BT_STEREO,  \
+                                ROUNDING);                                                   \
+}
+
+QUANTIZE_AND_ENCODE_BAND_COST_FUNC(ZERO,  1, 0, 0, 0, 0, 0, ROUND_STANDARD)
+QUANTIZE_AND_ENCODE_BAND_COST_FUNC(SQUAD, 0, 0, 0, 0, 0, 0, ROUND_STANDARD)
+QUANTIZE_AND_ENCODE_BAND_COST_FUNC(UQUAD, 0, 1, 0, 0, 0, 0, ROUND_STANDARD)
+QUANTIZE_AND_ENCODE_BAND_COST_FUNC(SPAIR, 0, 0, 1, 0, 0, 0, ROUND_STANDARD)
+QUANTIZE_AND_ENCODE_BAND_COST_FUNC(UPAIR, 0, 1, 1, 0, 0, 0, ROUND_STANDARD)
+QUANTIZE_AND_ENCODE_BAND_COST_FUNC(ESC,   0, 1, 1, 1, 0, 0, ROUND_STANDARD)
+QUANTIZE_AND_ENCODE_BAND_COST_FUNC(ESC_RTZ, 0, 1, 1, 1, 0, 0, ROUND_TO_ZERO)
+QUANTIZE_AND_ENCODE_BAND_COST_FUNC(NOISE, 0, 0, 0, 0, 1, 0, ROUND_STANDARD)
+QUANTIZE_AND_ENCODE_BAND_COST_FUNC(STEREO,0, 0, 0, 0, 0, 1, ROUND_STANDARD)
+
+static float (*const quantize_and_encode_band_cost_arr[])(
+                                struct AACEncContext *s,
+                                PutBitContext *pb, const float *in, float *quant,
+                                const float *scaled, int size, int scale_idx,
+                                int cb, const float lambda, const float uplim,
+                                int *bits) = {
+    quantize_and_encode_band_cost_ZERO,
+    quantize_and_encode_band_cost_SQUAD,
+    quantize_and_encode_band_cost_SQUAD,
+    quantize_and_encode_band_cost_UQUAD,
+    quantize_and_encode_band_cost_UQUAD,
+    quantize_and_encode_band_cost_SPAIR,
+    quantize_and_encode_band_cost_SPAIR,
+    quantize_and_encode_band_cost_UPAIR,
+    quantize_and_encode_band_cost_UPAIR,
+    quantize_and_encode_band_cost_UPAIR,
+    quantize_and_encode_band_cost_UPAIR,
+    quantize_and_encode_band_cost_ESC,
+    quantize_and_encode_band_cost_NONE,     /* CB 12 doesn't exist */
+    quantize_and_encode_band_cost_NOISE,
+    quantize_and_encode_band_cost_STEREO,
+    quantize_and_encode_band_cost_STEREO,
+};
+
+static float (*const quantize_and_encode_band_cost_rtz_arr[])(
+                                struct AACEncContext *s,
+                                PutBitContext *pb, const float *in, float *quant,
+                                const float *scaled, int size, int scale_idx,
+                                int cb, const float lambda, const float uplim,
+                                int *bits) = {
+    quantize_and_encode_band_cost_ZERO,
+    quantize_and_encode_band_cost_SQUAD,
+    quantize_and_encode_band_cost_SQUAD,
+    quantize_and_encode_band_cost_UQUAD,
+    quantize_and_encode_band_cost_UQUAD,
+    quantize_and_encode_band_cost_SPAIR,
+    quantize_and_encode_band_cost_SPAIR,
+    quantize_and_encode_band_cost_UPAIR,
+    quantize_and_encode_band_cost_UPAIR,
+    quantize_and_encode_band_cost_UPAIR,
+    quantize_and_encode_band_cost_UPAIR,
+    quantize_and_encode_band_cost_ESC_RTZ,
+    quantize_and_encode_band_cost_NONE,     /* CB 12 doesn't exist */
+    quantize_and_encode_band_cost_NOISE,
+    quantize_and_encode_band_cost_STEREO,
+    quantize_and_encode_band_cost_STEREO,
+};
+
+#define quantize_and_encode_band_cost(                                  \
+                                s, pb, in, quant, scaled, size, scale_idx, cb, \
+                                lambda, uplim, bits, rtz)               \
+    ((rtz) ? quantize_and_encode_band_cost_rtz_arr : quantize_and_encode_band_cost_arr)[cb]( \
+                                s, pb, in, quant, scaled, size, scale_idx, cb, \
+                                lambda, uplim, bits)
+
+static inline float quantize_band_cost(struct AACEncContext *s, const float *in,
+                                const float *scaled, int size, int scale_idx,
+                                int cb, const float lambda, const float uplim,
+                                int *bits, int rtz)
+{
+    return quantize_and_encode_band_cost(s, NULL, in, NULL, scaled, size, scale_idx,
+                                         cb, lambda, uplim, bits, rtz);
+}
+
+static inline void quantize_and_encode_band(struct AACEncContext *s, PutBitContext *pb,
+                                            const float *in, float *out, int size, int scale_idx,
+                                            int cb, const float lambda, int rtz)
+{
+    quantize_and_encode_band_cost(s, pb, in, out, NULL, size, scale_idx, cb, lambda,
+                                  INFINITY, NULL, rtz);
+}
+
+#endif /* AVCODEC_AACENC_QUANTIZATION_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacenc_tns.c

@@ -0,0 +1,194 @@
+/*
+ * AAC encoder TNS
+ * Copyright (C) 2015 Rostislav Pehlivanov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC encoder temporal noise shaping
+ * @author Rostislav Pehlivanov ( atomnuker gmail com )
+ */
+
+#include "aacenc.h"
+#include "aacenc_tns.h"
+#include "aactab.h"
+#include "aacenc_utils.h"
+#include "aacenc_quantization.h"
+
+/**
+ * Encode TNS data.
+ * Coefficient compression saves a single bit per coefficient.
+ */
+void ff_aac_encode_tns_info(AACEncContext *s, SingleChannelElement *sce)
+{
+    uint8_t u_coef;
+    const uint8_t coef_res = TNS_Q_BITS == 4;
+    int i, w, filt, coef_len, coef_compress = 0;
+    const int is8 = sce->ics.window_sequence[0] == EIGHT_SHORT_SEQUENCE;
+    TemporalNoiseShaping *tns = &sce->tns;
+
+    if (!sce->tns.present)
+        return;
+
+    for (i = 0; i < sce->ics.num_windows; i++) {
+        put_bits(&s->pb, 2 - is8, sce->tns.n_filt[i]);
+        if (tns->n_filt[i]) {
+            put_bits(&s->pb, 1, coef_res);
+            for (filt = 0; filt < tns->n_filt[i]; filt++) {
+                put_bits(&s->pb, 6 - 2 * is8, tns->length[i][filt]);
+                put_bits(&s->pb, 5 - 2 * is8, tns->order[i][filt]);
+                if (tns->order[i][filt]) {
+                    put_bits(&s->pb, 1, !!tns->direction[i][filt]);
+                    put_bits(&s->pb, 1, !!coef_compress);
+                    coef_len = coef_res + 3 - coef_compress;
+                    for (w = 0; w < tns->order[i][filt]; w++) {
+                        u_coef = (tns->coef_idx[i][filt][w])&(~(~0<<coef_len));
+                        put_bits(&s->pb, coef_len, u_coef);
+                    }
+                }
+            }
+        }
+    }
+}
+
+static inline void quantize_coefs(double *coef, int *idx, float *lpc, int order)
+{
+    int i;
+    uint8_t u_coef;
+    const float *quant_arr = tns_tmp2_map[TNS_Q_BITS == 4];
+    const double iqfac_p = ((1 << (TNS_Q_BITS-1)) - 0.5)/(M_PI/2.0);
+    const double iqfac_m = ((1 << (TNS_Q_BITS-1)) + 0.5)/(M_PI/2.0);
+    for (i = 0; i < order; i++) {
+        idx[i] = ceilf(asin(coef[i])*((coef[i] >= 0) ? iqfac_p : iqfac_m));
+        u_coef = (idx[i])&(~(~0<<TNS_Q_BITS));
+        lpc[i] = quant_arr[u_coef];
+    }
+}
+
+/* Apply TNS filter */
+void ff_aac_apply_tns(AACEncContext *s, SingleChannelElement *sce)
+{
+    TemporalNoiseShaping *tns = &sce->tns;
+    IndividualChannelStream *ics = &sce->ics;
+    int w, filt, m, i, top, order, bottom, start, end, size, inc;
+    const int mmm = FFMIN(ics->tns_max_bands, ics->max_sfb);
+    float lpc[TNS_MAX_ORDER];
+
+    for (w = 0; w < ics->num_windows; w++) {
+        bottom = ics->num_swb;
+        for (filt = 0; filt < tns->n_filt[w]; filt++) {
+            top    = bottom;
+            bottom = FFMAX(0, top - tns->length[w][filt]);
+            order  = tns->order[w][filt];
+            if (order == 0)
+                continue;
+
+            // tns_decode_coef
+            compute_lpc_coefs(tns->coef[w][filt], order, lpc, 0, 0, 0);
+
+            start = ics->swb_offset[FFMIN(bottom, mmm)];
+            end   = ics->swb_offset[FFMIN(   top, mmm)];
+            if ((size = end - start) <= 0)
+                continue;
+            if (tns->direction[w][filt]) {
+                inc = -1;
+                start = end - 1;
+            } else {
+                inc = 1;
+            }
+            start += w * 128;
+
+            // ar filter
+            for (m = 0; m < size; m++, start += inc)
+                for (i = 1; i <= FFMIN(m, order); i++)
+                    sce->coeffs[start] += lpc[i-1]*sce->pcoeffs[start - i*inc];
+        }
+    }
+}
+
+void ff_aac_search_for_tns(AACEncContext *s, SingleChannelElement *sce)
+{
+    TemporalNoiseShaping *tns = &sce->tns;
+    int w, w2, g, count = 0;
+    const int mmm = FFMIN(sce->ics.tns_max_bands, sce->ics.max_sfb);
+    const int is8 = sce->ics.window_sequence[0] == EIGHT_SHORT_SEQUENCE;
+    const int order = is8 ? 7 : s->profile == FF_PROFILE_AAC_LOW ? 12 : TNS_MAX_ORDER;
+
+    int sfb_start = av_clip(tns_min_sfb[is8][s->samplerate_index], 0, mmm);
+    int sfb_end   = av_clip(sce->ics.num_swb, 0, mmm);
+
+    for (w = 0; w < sce->ics.num_windows; w++) {
+        float e_ratio = 0.0f, threshold = 0.0f, spread = 0.0f, en[2] = {0.0, 0.0f};
+        double gain = 0.0f, coefs[MAX_LPC_ORDER] = {0};
+        int coef_start = w*sce->ics.num_swb + sce->ics.swb_offset[sfb_start];
+        int coef_len = sce->ics.swb_offset[sfb_end] - sce->ics.swb_offset[sfb_start];
+
+        for (g = 0;  g < sce->ics.num_swb; g++) {
+            if (w*16+g < sfb_start || w*16+g > sfb_end)
+                continue;
+            for (w2 = 0; w2 < sce->ics.group_len[w]; w2++) {
+                FFPsyBand *band = &s->psy.ch[s->cur_channel].psy_bands[(w+w2)*16+g];
+                if ((w+w2)*16+g > sfb_start + ((sfb_end - sfb_start)/2))
+                    en[1] += band->energy;
+                else
+                    en[0] += band->energy;
+                threshold += band->threshold;
+                spread += band->spread;
+            }
+        }
+
+        if (coef_len <= 0 || (sfb_end - sfb_start) <= 0)
+            continue;
+        else
+            e_ratio = en[0]/en[1];
+
+        /* LPC */
+        gain = ff_lpc_calc_ref_coefs_f(&s->lpc, &sce->coeffs[coef_start],
+                                       coef_len, order, coefs);
+
+        if (gain > TNS_GAIN_THRESHOLD_LOW && gain < TNS_GAIN_THRESHOLD_HIGH &&
+            (en[0]+en[1]) > TNS_GAIN_THRESHOLD_LOW*threshold &&
+            spread < TNS_SPREAD_THRESHOLD && order) {
+            if (is8 || order < 2 || (e_ratio > TNS_E_RATIO_LOW && e_ratio < TNS_E_RATIO_HIGH)) {
+                tns->n_filt[w] = 1;
+                for (g = 0; g < tns->n_filt[w]; g++) {
+                    tns->length[w][g] = sfb_end - sfb_start;
+                    tns->direction[w][g] = en[0] < en[1];
+                    tns->order[w][g] = order;
+                    quantize_coefs(coefs, tns->coef_idx[w][g], tns->coef[w][g],
+                                   order);
+                }
+            } else {  /* 2 filters due to energy disbalance */
+                tns->n_filt[w] = 2;
+                for (g = 0; g < tns->n_filt[w]; g++) {
+                    tns->direction[w][g] = en[g] < en[!g];
+                    tns->order[w][g] = !g ? order/2 : order - tns->order[w][g-1];
+                    tns->length[w][g] = !g ? (sfb_end - sfb_start)/2 : \
+                                    (sfb_end - sfb_start) - tns->length[w][g-1];
+                    quantize_coefs(&coefs[!g ? 0 : order - tns->order[w][g-1]],
+                                   tns->coef_idx[w][g], tns->coef[w][g],
+                                   tns->order[w][g]);
+                }
+            }
+            count++;
+        }
+    }
+
+    sce->tns.present = !!count;
+}

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacenc_tns.h

@@ -0,0 +1,52 @@
+/*
+ * AAC encoder TNS
+ * Copyright (C) 2015 Rostislav Pehlivanov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC encoder temporal noise shaping
+ * @author Rostislav Pehlivanov ( atomnuker gmail com )
+ */
+
+#ifndef AVCODEC_AACENC_TNS_H
+#define AVCODEC_AACENC_TNS_H
+
+#include "aacenc.h"
+
+/* Could be set to 3 to save an additional bit at the cost of little quality */
+#define TNS_Q_BITS 4
+
+/* TNS will only be used if the LPC gain is within these margins */
+#define TNS_GAIN_THRESHOLD_LOW  1.395f
+#define TNS_GAIN_THRESHOLD_HIGH 11.19f
+
+/* If the energy ratio between the low SFBs vs the high SFBs is not between
+ * those two values, use 2 filters instead */
+#define TNS_E_RATIO_LOW  0.77
+#define TNS_E_RATIO_HIGH 1.23
+
+/* Do not use TNS if the psy band spread is below this value */
+#define TNS_SPREAD_THRESHOLD 37.081512f
+
+void ff_aac_encode_tns_info(AACEncContext *s, SingleChannelElement *sce);
+void ff_aac_apply_tns(AACEncContext *s, SingleChannelElement *sce);
+void ff_aac_search_for_tns(AACEncContext *s, SingleChannelElement *sce);
+
+#endif /* AVCODEC_AACENC_TNS_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacenc_utils.h

@@ -0,0 +1,143 @@
+/*
+ * AAC encoder utilities
+ * Copyright (C) 2015 Rostislav Pehlivanov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC encoder utilities
+ * @author Rostislav Pehlivanov ( atomnuker gmail com )
+ */
+
+#ifndef AVCODEC_AACENC_UTILS_H
+#define AVCODEC_AACENC_UTILS_H
+
+#include "aac.h"
+#include "aac_tablegen_decl.h"
+#include "aacenctab.h"
+
+#define ROUND_STANDARD 0.4054f
+#define ROUND_TO_ZERO 0.1054f
+#define C_QUANT 0.4054f
+
+static inline void abs_pow34_v(float *out, const float *in, const int size)
+{
+    int i;
+    for (i = 0; i < size; i++) {
+        float a = fabsf(in[i]);
+        out[i] = sqrtf(a * sqrtf(a));
+    }
+}
+
+/**
+ * Quantize one coefficient.
+ * @return absolute value of the quantized coefficient
+ * @see 3GPP TS26.403 5.6.2 "Scalefactor determination"
+ */
+static inline int quant(float coef, const float Q, const float rounding)
+{
+    float a = coef * Q;
+    return sqrtf(a * sqrtf(a)) + rounding;
+}
+
+static inline void quantize_bands(int *out, const float *in, const float *scaled,
+                                  int size, float Q34, int is_signed, int maxval,
+                                  const float rounding)
+{
+    int i;
+    double qc;
+    for (i = 0; i < size; i++) {
+        qc = scaled[i] * Q34;
+        out[i] = (int)FFMIN(qc + rounding, (double)maxval);
+        if (is_signed && in[i] < 0.0f) {
+            out[i] = -out[i];
+        }
+    }
+}
+
+static inline float find_max_val(int group_len, int swb_size, const float *scaled)
+{
+    float maxval = 0.0f;
+    int w2, i;
+    for (w2 = 0; w2 < group_len; w2++) {
+        for (i = 0; i < swb_size; i++) {
+            maxval = FFMAX(maxval, scaled[w2*128+i]);
+        }
+    }
+    return maxval;
+}
+
+static inline int find_min_book(float maxval, int sf)
+{
+    float Q = ff_aac_pow2sf_tab[POW_SF2_ZERO - sf + SCALE_ONE_POS - SCALE_DIV_512];
+    float Q34 = sqrtf(Q * sqrtf(Q));
+    int qmaxval, cb;
+    qmaxval = maxval * Q34 + C_QUANT;
+    if      (qmaxval ==  0) cb = 0;
+    else if (qmaxval ==  1) cb = 1;
+    else if (qmaxval ==  2) cb = 3;
+    else if (qmaxval <=  4) cb = 5;
+    else if (qmaxval <=  7) cb = 7;
+    else if (qmaxval <= 12) cb = 9;
+    else                    cb = 11;
+    return cb;
+}
+
+/** Return the minimum scalefactor where the quantized coef does not clip. */
+static inline uint8_t coef2minsf(float coef)
+{
+    return av_clip_uint8(log2f(coef)*4 - 69 + SCALE_ONE_POS - SCALE_DIV_512);
+}
+
+/** Return the maximum scalefactor where the quantized coef is not zero. */
+static inline uint8_t coef2maxsf(float coef)
+{
+    return av_clip_uint8(log2f(coef)*4 +  6 + SCALE_ONE_POS - SCALE_DIV_512);
+}
+
+/*
+ * Returns the closest possible index to an array of float values, given a value.
+ */
+static inline int quant_array_idx(const float val, const float *arr, const int num)
+{
+    int i, index = 0;
+    float quant_min_err = INFINITY;
+    for (i = 0; i < num; i++) {
+        float error = (val - arr[i])*(val - arr[i]);
+        if (error < quant_min_err) {
+            quant_min_err = error;
+            index = i;
+        }
+    }
+    return index;
+}
+
+#define ERROR_IF(cond, ...) \
+    if (cond) { \
+        av_log(avctx, AV_LOG_ERROR, __VA_ARGS__); \
+        return AVERROR(EINVAL); \
+    }
+
+#define WARN_IF(cond, ...) \
+    if (cond) { \
+        av_log(avctx, AV_LOG_WARNING, __VA_ARGS__); \
+    }
+
+
+#endif /* AVCODEC_AACENC_UTILS_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacenctab.c

@@ -0,0 +1,108 @@
+/*
+ * AAC encoder data
+ * Copyright (c) 2015 Rostislav Pehlivanov ( atomnuker gmail com )
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "aacenctab.h"
+
+static const uint8_t swb_size_128_96[] = {
+    4, 4, 4, 4, 4, 4, 8, 8, 8, 16, 28, 36
+};
+
+static const uint8_t swb_size_128_64[] = {
+    4, 4, 4, 4, 4, 4, 8, 8, 8, 16, 28, 36
+};
+
+static const uint8_t swb_size_128_48[] = {
+    4, 4, 4, 4, 4, 8, 8, 8, 12, 12, 12, 16, 16, 16
+};
+
+static const uint8_t swb_size_128_24[] = {
+    4, 4, 4, 4, 4, 4, 4, 8, 8, 8, 12, 12, 16, 16, 20
+};
+
+static const uint8_t swb_size_128_16[] = {
+    4, 4, 4, 4, 4, 4, 4, 4, 8, 8, 12, 12, 16, 20, 20
+};
+
+static const uint8_t swb_size_128_8[] = {
+    4, 4, 4, 4, 4, 4, 4, 8, 8, 8, 8, 12, 16, 20, 20
+};
+
+static const uint8_t swb_size_1024_96[] = {
+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 8, 8, 8, 8, 8,
+    12, 12, 12, 12, 12, 16, 16, 24, 28, 36, 44,
+    64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64
+};
+
+static const uint8_t swb_size_1024_64[] = {
+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 8, 8, 8, 8,
+    12, 12, 12, 16, 16, 16, 20, 24, 24, 28, 36,
+    40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40
+};
+
+static const uint8_t swb_size_1024_48[] = {
+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 8, 8, 8, 8, 8, 8, 8,
+    12, 12, 12, 12, 16, 16, 20, 20, 24, 24, 28, 28,
+    32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
+    96
+};
+
+static const uint8_t swb_size_1024_32[] = {
+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 8, 8, 8, 8, 8, 8, 8,
+    12, 12, 12, 12, 16, 16, 20, 20, 24, 24, 28, 28,
+    32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32
+};
+
+static const uint8_t swb_size_1024_24[] = {
+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
+    12, 12, 12, 12, 16, 16, 16, 20, 20, 24, 24, 28, 28,
+    32, 36, 36, 40, 44, 48, 52, 52, 64, 64, 64, 64, 64
+};
+
+static const uint8_t swb_size_1024_16[] = {
+    8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
+    12, 12, 12, 12, 12, 12, 12, 12, 12, 16, 16, 16, 16, 20, 20, 20, 24, 24, 28, 28,
+    32, 36, 40, 40, 44, 48, 52, 56, 60, 64, 64, 64
+};
+
+static const uint8_t swb_size_1024_8[] = {
+    12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
+    16, 16, 16, 16, 16, 16, 16, 20, 20, 20, 20, 24, 24, 24, 28, 28,
+    32, 36, 36, 40, 44, 48, 52, 56, 60, 64, 80
+};
+
+const uint8_t *ff_aac_swb_size_128[] = {
+    swb_size_128_96, swb_size_128_96, swb_size_128_64,
+    swb_size_128_48, swb_size_128_48, swb_size_128_48,
+    swb_size_128_24, swb_size_128_24, swb_size_128_16,
+    swb_size_128_16, swb_size_128_16, swb_size_128_8,
+    swb_size_128_8
+};
+
+const uint8_t *ff_aac_swb_size_1024[] = {
+    swb_size_1024_96, swb_size_1024_96, swb_size_1024_64,
+    swb_size_1024_48, swb_size_1024_48, swb_size_1024_32,
+    swb_size_1024_24, swb_size_1024_24, swb_size_1024_16,
+    swb_size_1024_16, swb_size_1024_16, swb_size_1024_8,
+    swb_size_1024_8
+};
+
+const int ff_aac_swb_size_128_len  = FF_ARRAY_ELEMS(ff_aac_swb_size_128);
+const int ff_aac_swb_size_1024_len = FF_ARRAY_ELEMS(ff_aac_swb_size_1024);

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacenctab.h

@@ -0,0 +1,113 @@
+/*
+ * AAC encoder data
+ * Copyright (c) 2015 Rostislav Pehlivanov ( atomnuker gmail com )
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC encoder data
+ * @author Rostislav Pehlivanov ( atomnuker gmail com )
+ */
+
+#ifndef AVCODEC_AACENCTAB_H
+#define AVCODEC_AACENCTAB_H
+
+#include "aac.h"
+
+/** Total number of usable codebooks **/
+#define CB_TOT 12
+
+/** Total number of codebooks, including special ones **/
+#define CB_TOT_ALL 15
+
+#define AAC_MAX_CHANNELS 6
+
+extern const uint8_t *ff_aac_swb_size_1024[];
+extern const int      ff_aac_swb_size_1024_len;
+extern const uint8_t *ff_aac_swb_size_128[];
+extern const int      ff_aac_swb_size_128_len;
+
+/** default channel configurations */
+static const uint8_t aac_chan_configs[6][5] = {
+    {1, TYPE_SCE},                               // 1 channel  - single channel element
+    {1, TYPE_CPE},                               // 2 channels - channel pair
+    {2, TYPE_SCE, TYPE_CPE},                     // 3 channels - center + stereo
+    {3, TYPE_SCE, TYPE_CPE, TYPE_SCE},           // 4 channels - front center + stereo + back center
+    {3, TYPE_SCE, TYPE_CPE, TYPE_CPE},           // 5 channels - front center + stereo + back stereo
+    {4, TYPE_SCE, TYPE_CPE, TYPE_CPE, TYPE_LFE}, // 6 channels - front center + stereo + back stereo + LFE
+};
+
+/**
+ * Table to remap channels from libavcodec's default order to AAC order.
+ */
+static const uint8_t aac_chan_maps[AAC_MAX_CHANNELS][AAC_MAX_CHANNELS] = {
+    { 0 },
+    { 0, 1 },
+    { 2, 0, 1 },
+    { 2, 0, 1, 3 },
+    { 2, 0, 1, 3, 4 },
+    { 2, 0, 1, 4, 5, 3 },
+};
+
+/* duplicated from avpriv_mpeg4audio_sample_rates to avoid shared build
+ * failures */
+static const int mpeg4audio_sample_rates[16] = {
+    96000, 88200, 64000, 48000, 44100, 32000,
+    24000, 22050, 16000, 12000, 11025, 8000, 7350
+};
+
+/** bits needed to code codebook run value for long windows */
+static const uint8_t run_value_bits_long[64] = {
+     5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,
+     5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5,  5, 10,
+    10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
+    10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 15
+};
+
+/** bits needed to code codebook run value for short windows */
+static const uint8_t run_value_bits_short[16] = {
+    3, 3, 3, 3, 3, 3, 3, 6, 6, 6, 6, 6, 6, 6, 6, 9
+};
+
+/* TNS starting SFBs for long and short windows */
+static const uint8_t tns_min_sfb_short[16] = {
+    2, 2, 2, 3, 3, 4, 6, 6, 8, 10, 10, 12, 12, 12, 12, 12
+};
+
+static const uint8_t tns_min_sfb_long[16] = {
+    12, 13, 15, 16, 17, 20, 25, 26, 24, 28, 30, 31, 31, 31, 31, 31
+};
+
+static const uint8_t * const tns_min_sfb[2] = {
+    tns_min_sfb_long, tns_min_sfb_short
+};
+
+static const uint8_t * const run_value_bits[2] = {
+    run_value_bits_long, run_value_bits_short
+};
+
+/** Map to convert values from BandCodingPath index to a codebook index **/
+static const uint8_t aac_cb_out_map[CB_TOT_ALL]  = {0,1,2,3,4,5,6,7,8,9,10,11,13,14,15};
+/** Inverse map to convert from codebooks to BandCodingPath indices **/
+static const uint8_t aac_cb_in_map[CB_TOT_ALL+1] = {0,1,2,3,4,5,6,7,8,9,10,11,0,12,13,14};
+
+static const uint8_t aac_cb_range [12] = {0, 3, 3, 3, 3, 9, 9, 8, 8, 13, 13, 17};
+static const uint8_t aac_cb_maxval[12] = {0, 1, 1, 2, 2, 4, 4, 7, 7, 12, 12, 16};
+
+#endif /* AVCODEC_AACENCTAB_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacps.h

@@ -0,0 +1,86 @@
+/*
+ * MPEG-4 Parametric Stereo definitions and declarations
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_PS_H
+#define AVCODEC_PS_H
+
+#include <stdint.h>
+
+#include "aacpsdsp.h"
+#include "avcodec.h"
+#include "get_bits.h"
+
+#define PS_MAX_NUM_ENV 5
+#define PS_MAX_NR_IIDICC 34
+#define PS_MAX_NR_IPDOPD 17
+#define PS_MAX_SSB 91
+#define PS_MAX_AP_BANDS 50
+#define PS_QMF_TIME_SLOTS 32
+#define PS_MAX_DELAY 14
+#define PS_AP_LINKS 3
+#define PS_MAX_AP_DELAY 5
+
+typedef struct PSContext {
+    int    start;
+    int    enable_iid;
+    int    iid_quant;
+    int    nr_iid_par;
+    int    nr_ipdopd_par;
+    int    enable_icc;
+    int    icc_mode;
+    int    nr_icc_par;
+    int    enable_ext;
+    int    frame_class;
+    int    num_env_old;
+    int    num_env;
+    int    enable_ipdopd;
+    int    border_position[PS_MAX_NUM_ENV+1];
+    int8_t iid_par[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]; ///< Inter-channel Intensity Difference Parameters
+    int8_t icc_par[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]; ///< Inter-Channel Coherence Parameters
+    /* ipd/opd is iid/icc sized so that the same functions can handle both */
+    int8_t ipd_par[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]; ///< Inter-channel Phase Difference Parameters
+    int8_t opd_par[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]; ///< Overall Phase Difference Parameters
+    int    is34bands;
+    int    is34bands_old;
+
+    DECLARE_ALIGNED(16, INTFLOAT, in_buf)[5][44][2];
+    DECLARE_ALIGNED(16, INTFLOAT, delay)[PS_MAX_SSB][PS_QMF_TIME_SLOTS + PS_MAX_DELAY][2];
+    DECLARE_ALIGNED(16, INTFLOAT, ap_delay)[PS_MAX_AP_BANDS][PS_AP_LINKS][PS_QMF_TIME_SLOTS + PS_MAX_AP_DELAY][2];
+    DECLARE_ALIGNED(16, INTFLOAT, peak_decay_nrg)[34];
+    DECLARE_ALIGNED(16, INTFLOAT, power_smooth)[34];
+    DECLARE_ALIGNED(16, INTFLOAT, peak_decay_diff_smooth)[34];
+    DECLARE_ALIGNED(16, INTFLOAT, H11)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC];
+    DECLARE_ALIGNED(16, INTFLOAT, H12)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC];
+    DECLARE_ALIGNED(16, INTFLOAT, H21)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC];
+    DECLARE_ALIGNED(16, INTFLOAT, H22)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC];
+    DECLARE_ALIGNED(16, INTFLOAT, Lbuf)[91][32][2];
+    DECLARE_ALIGNED(16, INTFLOAT, Rbuf)[91][32][2];
+    int8_t opd_hist[PS_MAX_NR_IIDICC];
+    int8_t ipd_hist[PS_MAX_NR_IIDICC];
+    PSDSPContext dsp;
+} PSContext;
+
+void AAC_RENAME(ff_ps_init)(void);
+void AAC_RENAME(ff_ps_ctx_init)(PSContext *ps);
+int AAC_RENAME(ff_ps_read_data)(AVCodecContext *avctx, GetBitContext *gb, PSContext *ps, int bits_left);
+int AAC_RENAME(ff_ps_apply)(AVCodecContext *avctx, PSContext *ps, INTFLOAT L[2][38][64], INTFLOAT R[2][38][64], int top);
+
+#endif /* AVCODEC_PS_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacps_fixed.c

@@ -0,0 +1,24 @@
+/*
+ * MPEG-4 Parametric Stereo decoding functions
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define USE_FIXED 1
+
+#include "aacps.c"

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacps_fixed_tablegen.c

@@ -0,0 +1,24 @@
+/*
+ * Generate a header file for hardcoded Parametric Stereo tables
+ *
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define USE_FIXED 1
+#include "aacps_tablegen_template.c"

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacps_fixed_tablegen.h

@@ -0,0 +1,403 @@
+/*
+ * Header file for hardcoded Parametric Stereo tables
+ *
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Note: Rounding-to-nearest used unless otherwise stated
+ *
+ */
+
+#ifndef AACPS_FIXED_TABLEGEN_H
+#define AACPS_FIXED_TABLEGEN_H
+
+#include <math.h>
+#include <stdint.h>
+
+#if CONFIG_HARDCODED_TABLES
+#define ps_tableinit()
+#define TABLE_CONST const
+#include "libavcodec/aacps_fixed_tables.h"
+#else
+#include "libavutil/common.h"
+#include "libavutil/mathematics.h"
+#include "libavutil/mem.h"
+
+#include "aac_defines.h"
+#include "libavutil/softfloat.h"
+#define NR_ALLPASS_BANDS20 30
+#define NR_ALLPASS_BANDS34 50
+#define PS_AP_LINKS 3
+#define TABLE_CONST
+static int pd_re_smooth[8*8*8];
+static int pd_im_smooth[8*8*8];
+static int HA[46][8][4];
+static int HB[46][8][4];
+static DECLARE_ALIGNED(16, int, f20_0_8) [ 8][8][2];
+static DECLARE_ALIGNED(16, int, f34_0_12)[12][8][2];
+static DECLARE_ALIGNED(16, int, f34_1_8) [ 8][8][2];
+static DECLARE_ALIGNED(16, int, f34_2_4) [ 4][8][2];
+static TABLE_CONST DECLARE_ALIGNED(16, int, Q_fract_allpass)[2][50][3][2];
+static DECLARE_ALIGNED(16, int, phi_fract)[2][50][2];
+
+static const int g0_Q8[] = {
+    Q31(0.00746082949812f), Q31(0.02270420949825f), Q31(0.04546865930473f), Q31(0.07266113929591f),
+    Q31(0.09885108575264f), Q31(0.11793710567217f), Q31(0.125f)
+};
+
+static const int g0_Q12[] = {
+    Q31(0.04081179924692f), Q31(0.03812810994926f), Q31(0.05144908135699f), Q31(0.06399831151592f),
+    Q31(0.07428313801106f), Q31(0.08100347892914f), Q31(0.08333333333333f)
+};
+
+static const int g1_Q8[] = {
+    Q31(0.01565675600122f), Q31(0.03752716391991f), Q31(0.05417891378782f), Q31(0.08417044116767f),
+    Q31(0.10307344158036f), Q31(0.12222452249753f), Q31(0.125f)
+};
+
+static const int g2_Q4[] = {
+    Q31(-0.05908211155639f), Q31(-0.04871498374946f), Q31(0.0f),   Q31(0.07778723915851f),
+    Q31( 0.16486303567403f), Q31( 0.23279856662996f), Q31(0.25f)
+};
+
+static const int sintbl_4[4]   = {           0,  1073741824,           0, -1073741824 };
+static const int costbl_4[4]   = {  1073741824,           0, -1073741824,           0 };
+static const int sintbl_8[8]   = {           0,   759250125,  1073741824,   759250125,
+                                             0,  -759250125, -1073741824,  -759250125 };
+static const int costbl_8[8]   = {  1073741824,   759250125,           0,  -759250125,
+                                   -1073741824,  -759250125,           0,   759250125 };
+static const int sintbl_12[12] = {           0,   536870912,   929887697,  1073741824,
+                                     929887697,   536870912,           0,  -536870912,
+                                    -929887697, -1073741824,  -929887697,  -536870912 };
+static const int costbl_12[12] = {  1073741824,   929887697,   536870912,           0,
+                                    -536870912,  -929887697, -1073741824,  -929887697,
+                                    -536870912,           0,   536870912,   929887697 };
+
+static void make_filters_from_proto(int (*filter)[8][2], const int *proto, int bands)
+{
+
+    const int *sinptr, *cosptr;
+    int s, c, sinhalf, coshalf;
+    int q, n;
+
+    if (bands == 4) {
+        sinptr = sintbl_4;
+        cosptr = costbl_4;
+        sinhalf = 759250125;
+        coshalf = 759250125;
+    } else if (bands == 8) {
+        sinptr = sintbl_8;
+        cosptr = costbl_8;
+        sinhalf = 410903207;
+        coshalf = 992008094;
+    } else {
+        sinptr = sintbl_12;
+        cosptr = costbl_12;
+        sinhalf = 277904834;
+        coshalf = 1037154959;
+    }
+
+    for (q = 0; q < bands; q++) {
+        for (n = 0; n < 7; n++) {
+            int theta = (q*(n-6) + (n>>1) - 3) % bands;
+
+            if (theta < 0)
+                theta += bands;
+            s = sinptr[theta];
+            c = cosptr[theta];
+
+            if (n & 1) {
+                theta = (int)(((int64_t)c * coshalf - (int64_t)s * sinhalf + 0x20000000) >> 30);
+                s = (int)(((int64_t)s * coshalf + (int64_t)c * sinhalf + 0x20000000) >> 30);
+                c = theta;
+            }
+            filter[q][n][0] = (int)(((int64_t)proto[n] * c + 0x20000000) >> 30);
+            filter[q][n][1] = -(int)(((int64_t)proto[n] * s + 0x20000000) >> 30);
+        }
+    }
+}
+
+static void ps_tableinit(void)
+{
+    static const int ipdopd_sin[] = { Q30(0), Q30(M_SQRT1_2), Q30(1), Q30( M_SQRT1_2), Q30( 0), Q30(-M_SQRT1_2), Q30(-1), Q30(-M_SQRT1_2) };
+    static const int ipdopd_cos[] = { Q30(1), Q30(M_SQRT1_2), Q30(0), Q30(-M_SQRT1_2), Q30(-1), Q30(-M_SQRT1_2), Q30( 0), Q30( M_SQRT1_2) };
+    int pd0, pd1, pd2;
+    int idx;
+
+    static const int alpha_tab[] =
+    {
+      Q30(1.5146213770f/M_PI), Q30(1.5181334019f/M_PI), Q30(1.5234849453f/M_PI), Q30(1.5369486809f/M_PI), Q30(1.5500687361f/M_PI), Q30(1.5679757595f/M_PI),
+      Q30(1.4455626011f/M_PI), Q30(1.4531552792f/M_PI), Q30(1.4648091793f/M_PI), Q30(1.4945238829f/M_PI), Q30(1.5239057541f/M_PI), Q30(1.5644006729f/M_PI),
+      Q30(1.3738563061f/M_PI), Q30(1.3851221800f/M_PI), Q30(1.4026404619f/M_PI), Q30(1.4484288692f/M_PI), Q30(1.4949874878f/M_PI), Q30(1.5604078770f/M_PI),
+      Q30(1.2645189762f/M_PI), Q30(1.2796478271f/M_PI), Q30(1.3038636446f/M_PI), Q30(1.3710125685f/M_PI), Q30(1.4443849325f/M_PI), Q30(1.5532352924f/M_PI),
+      Q30(1.1507037878f/M_PI), Q30(1.1669205427f/M_PI), Q30(1.1938756704f/M_PI), Q30(1.2754167318f/M_PI), Q30(1.3761177063f/M_PI), Q30(1.5429240465f/M_PI),
+      Q30(1.0079245567f/M_PI), Q30(1.0208238363f/M_PI), Q30(1.0433073044f/M_PI), Q30(1.1208510399f/M_PI), Q30(1.2424604893f/M_PI), Q30(1.5185726881f/M_PI),
+      Q30(0.8995233774f/M_PI), Q30(0.9069069624f/M_PI), Q30(0.9201194048f/M_PI), Q30(0.9698365927f/M_PI), Q30(1.0671583414f/M_PI), Q30(1.4647934437f/M_PI),
+      Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI),
+      Q30(0.6712729335f/M_PI), Q30(0.6638893485f/M_PI), Q30(0.6506769061f/M_PI), Q30(0.6009597182f/M_PI), Q30(0.5036380291f/M_PI), Q30(0.1060028747f/M_PI),
+      Q30(0.5628717542f/M_PI), Q30(0.5499725342f/M_PI), Q30(0.5274890065f/M_PI), Q30(0.4499453008f/M_PI), Q30(0.3283358216f/M_PI), Q30(0.0522236861f/M_PI),
+      Q30(0.4200925827f/M_PI), Q30(0.4038758278f/M_PI), Q30(0.3769206405f/M_PI), Q30(0.2953795493f/M_PI), Q30(0.1946786791f/M_PI), Q30(0.0278722942f/M_PI),
+      Q30(0.3062773645f/M_PI), Q30(0.2911485136f/M_PI), Q30(0.2669326365f/M_PI), Q30(0.1997837722f/M_PI), Q30(0.1264114529f/M_PI), Q30(0.0175609849f/M_PI),
+      Q30(0.1969399750f/M_PI), Q30(0.1856741160f/M_PI), Q30(0.1681558639f/M_PI), Q30(0.1223674342f/M_PI), Q30(0.0758088827f/M_PI), Q30(0.0103884479f/M_PI),
+      Q30(0.1252337098f/M_PI), Q30(0.1176410317f/M_PI), Q30(0.1059871912f/M_PI), Q30(0.0762724727f/M_PI), Q30(0.0468905345f/M_PI), Q30(0.0063956482f/M_PI),
+      Q30(0.0561749674f/M_PI), Q30(0.0526629239f/M_PI), Q30(0.0473113805f/M_PI), Q30(0.0338476151f/M_PI), Q30(0.0207276177f/M_PI), Q30(0.0028205961f/M_PI),
+      Q30(1.5676341057f/M_PI), Q30(1.5678333044f/M_PI), Q30(1.5681363344f/M_PI), Q30(1.5688960552f/M_PI), Q30(1.5696337223f/M_PI), Q30(1.5706381798f/M_PI),
+      Q30(1.5651730299f/M_PI), Q30(1.5655272007f/M_PI), Q30(1.5660660267f/M_PI), Q30(1.5674170256f/M_PI), Q30(1.5687289238f/M_PI), Q30(1.5705151558f/M_PI),
+      Q30(1.5607966185f/M_PI), Q30(1.5614265203f/M_PI), Q30(1.5623844862f/M_PI), Q30(1.5647867918f/M_PI), Q30(1.5671195984f/M_PI), Q30(1.5702962875f/M_PI),
+      Q30(1.5530153513f/M_PI), Q30(1.5541347265f/M_PI), Q30(1.5558375120f/M_PI), Q30(1.5601085424f/M_PI), Q30(1.5642569065f/M_PI), Q30(1.5699069500f/M_PI),
+      Q30(1.5391840935f/M_PI), Q30(1.5411708355f/M_PI), Q30(1.5441943407f/M_PI), Q30(1.5517836809f/M_PI), Q30(1.5591609478f/M_PI), Q30(1.5692136288f/M_PI),
+      Q30(1.5146213770f/M_PI), Q30(1.5181334019f/M_PI), Q30(1.5234849453f/M_PI), Q30(1.5369486809f/M_PI), Q30(1.5500687361f/M_PI), Q30(1.5679757595f/M_PI),
+      Q30(1.4915299416f/M_PI), Q30(1.4964480400f/M_PI), Q30(1.5039558411f/M_PI), Q30(1.5229074955f/M_PI), Q30(1.5414420366f/M_PI), Q30(1.5667995214f/M_PI),
+      Q30(1.4590617418f/M_PI), Q30(1.4658898115f/M_PI), Q30(1.4763505459f/M_PI), Q30(1.5029321909f/M_PI), Q30(1.5291173458f/M_PI), Q30(1.5651149750f/M_PI),
+      Q30(1.4136143923f/M_PI), Q30(1.4229322672f/M_PI), Q30(1.4373078346f/M_PI), Q30(1.4743183851f/M_PI), Q30(1.5113102198f/M_PI), Q30(1.5626684427f/M_PI),
+      Q30(1.3505556583f/M_PI), Q30(1.3628427982f/M_PI), Q30(1.3820509911f/M_PI), Q30(1.4327841997f/M_PI), Q30(1.4850014448f/M_PI), Q30(1.5590143204f/M_PI),
+      Q30(1.2645189762f/M_PI), Q30(1.2796478271f/M_PI), Q30(1.3038636446f/M_PI), Q30(1.3710125685f/M_PI), Q30(1.4443849325f/M_PI), Q30(1.5532352924f/M_PI),
+      Q30(1.1919227839f/M_PI), Q30(1.2081253529f/M_PI), Q30(1.2346779108f/M_PI), Q30(1.3123005629f/M_PI), Q30(1.4034168720f/M_PI), Q30(1.5471596718f/M_PI),
+      Q30(1.1061993837f/M_PI), Q30(1.1219338179f/M_PI), Q30(1.1484941244f/M_PI), Q30(1.2320860624f/M_PI), Q30(1.3421301842f/M_PI), Q30(1.5373806953f/M_PI),
+      Q30(1.0079245567f/M_PI), Q30(1.0208238363f/M_PI), Q30(1.0433073044f/M_PI), Q30(1.1208510399f/M_PI), Q30(1.2424604893f/M_PI), Q30(1.5185726881f/M_PI),
+      Q30(0.8995233774f/M_PI), Q30(0.9069069624f/M_PI), Q30(0.9201194048f/M_PI), Q30(0.9698365927f/M_PI), Q30(1.0671583414f/M_PI), Q30(1.4647934437f/M_PI),
+      Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI), Q30(0.7853981853f/M_PI),
+      Q30(0.6712729335f/M_PI), Q30(0.6638893485f/M_PI), Q30(0.6506769061f/M_PI), Q30(0.6009597182f/M_PI), Q30(0.5036380291f/M_PI), Q30(0.1060028747f/M_PI),
+      Q30(0.5628717542f/M_PI), Q30(0.5499725342f/M_PI), Q30(0.5274890065f/M_PI), Q30(0.4499453008f/M_PI), Q30(0.3283358216f/M_PI), Q30(0.0522236861f/M_PI),
+      Q30(0.4645969570f/M_PI), Q30(0.4488625824f/M_PI), Q30(0.4223022461f/M_PI), Q30(0.3387103081f/M_PI), Q30(0.2286661267f/M_PI), Q30(0.0334156826f/M_PI),
+      Q30(0.3788735867f/M_PI), Q30(0.3626709878f/M_PI), Q30(0.3361184299f/M_PI), Q30(0.2584958076f/M_PI), Q30(0.1673794836f/M_PI), Q30(0.0236366931f/M_PI),
+      Q30(0.3062773645f/M_PI), Q30(0.2911485136f/M_PI), Q30(0.2669326365f/M_PI), Q30(0.1997837722f/M_PI), Q30(0.1264114529f/M_PI), Q30(0.0175609849f/M_PI),
+      Q30(0.2202406377f/M_PI), Q30(0.2079535723f/M_PI), Q30(0.1887452900f/M_PI), Q30(0.1380121708f/M_PI), Q30(0.0857949182f/M_PI), Q30(0.0117820343f/M_PI),
+      Q30(0.1571819335f/M_PI), Q30(0.1478640437f/M_PI), Q30(0.1334884763f/M_PI), Q30(0.0964778885f/M_PI), Q30(0.0594860613f/M_PI), Q30(0.0081279324f/M_PI),
+      Q30(0.1117345318f/M_PI), Q30(0.1049065739f/M_PI), Q30(0.0944457650f/M_PI), Q30(0.0678641573f/M_PI), Q30(0.0416790098f/M_PI), Q30(0.0056813755f/M_PI),
+      Q30(0.0792663917f/M_PI), Q30(0.0743482932f/M_PI), Q30(0.0668405443f/M_PI), Q30(0.0478888862f/M_PI), Q30(0.0293543357f/M_PI), Q30(0.0039967746f/M_PI),
+      Q30(0.0561749674f/M_PI), Q30(0.0526629239f/M_PI), Q30(0.0473113805f/M_PI), Q30(0.0338476151f/M_PI), Q30(0.0207276177f/M_PI), Q30(0.0028205961f/M_PI),
+      Q30(0.0316122435f/M_PI), Q30(0.0296254847f/M_PI), Q30(0.0266019460f/M_PI), Q30(0.0190126132f/M_PI), Q30(0.0116353342f/M_PI), Q30(0.0015827164f/M_PI),
+      Q30(0.0177809205f/M_PI), Q30(0.0166615788f/M_PI), Q30(0.0149587989f/M_PI), Q30(0.0106877899f/M_PI), Q30(0.0065393616f/M_PI), Q30(0.0008894200f/M_PI),
+      Q30(0.0099996664f/M_PI), Q30(0.0093698399f/M_PI), Q30(0.0084118480f/M_PI), Q30(0.0060095116f/M_PI), Q30(0.0036767013f/M_PI), Q30(0.0005000498f/M_PI),
+      Q30(0.0056233541f/M_PI), Q30(0.0052691097f/M_PI), Q30(0.0047303112f/M_PI), Q30(0.0033792770f/M_PI), Q30(0.0020674451f/M_PI), Q30(0.0002811795f/M_PI),
+      Q30(0.0031622672f/M_PI), Q30(0.0029630491f/M_PI), Q30(0.0026600463f/M_PI), Q30(0.0019002859f/M_PI), Q30(0.0011625893f/M_PI), Q30(0.0001581155f/M_PI)
+    };
+
+    static const int gamma_tab[] =
+    {
+      Q30(0.0000000000f/M_PI), Q30(0.0195873566f/M_PI), Q30(0.0303316917f/M_PI), Q30(0.0448668823f/M_PI), Q30(0.0522258915f/M_PI), Q30(0.0561044961f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0433459543f/M_PI), Q30(0.0672172382f/M_PI), Q30(0.0997167900f/M_PI), Q30(0.1162951663f/M_PI), Q30(0.1250736862f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0672341362f/M_PI), Q30(0.1045235619f/M_PI), Q30(0.1558904350f/M_PI), Q30(0.1824723780f/M_PI), Q30(0.1966800541f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1011129096f/M_PI), Q30(0.1580764502f/M_PI), Q30(0.2387557179f/M_PI), Q30(0.2820728719f/M_PI), Q30(0.3058380187f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1315985769f/M_PI), Q30(0.2072522491f/M_PI), Q30(0.3188187480f/M_PI), Q30(0.3825501204f/M_PI), Q30(0.4193951190f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1603866369f/M_PI), Q30(0.2549437582f/M_PI), Q30(0.4029446840f/M_PI), Q30(0.4980689585f/M_PI), Q30(0.5615641475f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1736015975f/M_PI), Q30(0.2773745656f/M_PI), Q30(0.4461984038f/M_PI), Q30(0.5666890144f/M_PI), Q30(0.6686112881f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1784276664f/M_PI), Q30(0.2856673002f/M_PI), Q30(0.4630723596f/M_PI), Q30(0.5971632004f/M_PI), Q30(0.7603877187f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1736015975f/M_PI), Q30(0.2773745656f/M_PI), Q30(0.4461984038f/M_PI), Q30(0.5666890144f/M_PI), Q30(0.6686112881f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1603866369f/M_PI), Q30(0.2549437582f/M_PI), Q30(0.4029446840f/M_PI), Q30(0.4980689585f/M_PI), Q30(0.5615641475f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1315985769f/M_PI), Q30(0.2072522491f/M_PI), Q30(0.3188187480f/M_PI), Q30(0.3825501204f/M_PI), Q30(0.4193951190f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1011129096f/M_PI), Q30(0.1580764502f/M_PI), Q30(0.2387557179f/M_PI), Q30(0.2820728719f/M_PI), Q30(0.3058380187f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0672341362f/M_PI), Q30(0.1045235619f/M_PI), Q30(0.1558904350f/M_PI), Q30(0.1824723780f/M_PI), Q30(0.1966800541f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0433459543f/M_PI), Q30(0.0672172382f/M_PI), Q30(0.0997167900f/M_PI), Q30(0.1162951663f/M_PI), Q30(0.1250736862f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0195873566f/M_PI), Q30(0.0303316917f/M_PI), Q30(0.0448668823f/M_PI), Q30(0.0522258915f/M_PI), Q30(0.0561044961f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0011053939f/M_PI), Q30(0.0017089852f/M_PI), Q30(0.0025254129f/M_PI), Q30(0.0029398468f/M_PI), Q30(0.0031597170f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0019607407f/M_PI), Q30(0.0030395309f/M_PI), Q30(0.0044951206f/M_PI), Q30(0.0052305623f/M_PI), Q30(0.0056152637f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0034913034f/M_PI), Q30(0.0054070661f/M_PI), Q30(0.0079917293f/M_PI), Q30(0.0092999367f/M_PI), Q30(0.0099875759f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0062100487f/M_PI), Q30(0.0096135242f/M_PI), Q30(0.0142110568f/M_PI), Q30(0.0165348612f/M_PI), Q30(0.0177587029f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0110366223f/M_PI), Q30(0.0170863140f/M_PI), Q30(0.0252620988f/M_PI), Q30(0.0293955617f/M_PI), Q30(0.0315726399f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0195873566f/M_PI), Q30(0.0303316917f/M_PI), Q30(0.0448668823f/M_PI), Q30(0.0522258915f/M_PI), Q30(0.0561044961f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0275881495f/M_PI), Q30(0.0427365713f/M_PI), Q30(0.0632618815f/M_PI), Q30(0.0736731067f/M_PI), Q30(0.0791663304f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0387469754f/M_PI), Q30(0.0600636788f/M_PI), Q30(0.0890387669f/M_PI), Q30(0.1037906483f/M_PI), Q30(0.1115923747f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0541138873f/M_PI), Q30(0.0839984417f/M_PI), Q30(0.1248718798f/M_PI), Q30(0.1458375156f/M_PI), Q30(0.1569785923f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0747506917f/M_PI), Q30(0.1163287833f/M_PI), Q30(0.1738867164f/M_PI), Q30(0.2038587779f/M_PI), Q30(0.2199459076f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1011129096f/M_PI), Q30(0.1580764502f/M_PI), Q30(0.2387557179f/M_PI), Q30(0.2820728719f/M_PI), Q30(0.3058380187f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1212290376f/M_PI), Q30(0.1903949380f/M_PI), Q30(0.2907958031f/M_PI), Q30(0.3466993868f/M_PI), Q30(0.3782821596f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1418247074f/M_PI), Q30(0.2240308374f/M_PI), Q30(0.3474813402f/M_PI), Q30(0.4202919006f/M_PI), Q30(0.4637607038f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1603866369f/M_PI), Q30(0.2549437582f/M_PI), Q30(0.4029446840f/M_PI), Q30(0.4980689585f/M_PI), Q30(0.5615641475f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1736015975f/M_PI), Q30(0.2773745656f/M_PI), Q30(0.4461984038f/M_PI), Q30(0.5666890144f/M_PI), Q30(0.6686112881f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1784276664f/M_PI), Q30(0.2856673002f/M_PI), Q30(0.4630723596f/M_PI), Q30(0.5971632004f/M_PI), Q30(0.7603877187f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1736015975f/M_PI), Q30(0.2773745656f/M_PI), Q30(0.4461984038f/M_PI), Q30(0.5666890144f/M_PI), Q30(0.6686112881f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1603866369f/M_PI), Q30(0.2549437582f/M_PI), Q30(0.4029446840f/M_PI), Q30(0.4980689585f/M_PI), Q30(0.5615641475f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1418247074f/M_PI), Q30(0.2240308374f/M_PI), Q30(0.3474813402f/M_PI), Q30(0.4202919006f/M_PI), Q30(0.4637607038f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1212290376f/M_PI), Q30(0.1903949380f/M_PI), Q30(0.2907958031f/M_PI), Q30(0.3466993868f/M_PI), Q30(0.3782821596f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.1011129096f/M_PI), Q30(0.1580764502f/M_PI), Q30(0.2387557179f/M_PI), Q30(0.2820728719f/M_PI), Q30(0.3058380187f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0747506917f/M_PI), Q30(0.1163287833f/M_PI), Q30(0.1738867164f/M_PI), Q30(0.2038587779f/M_PI), Q30(0.2199459076f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0541138873f/M_PI), Q30(0.0839984417f/M_PI), Q30(0.1248718798f/M_PI), Q30(0.1458375156f/M_PI), Q30(0.1569785923f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0387469754f/M_PI), Q30(0.0600636788f/M_PI), Q30(0.0890387669f/M_PI), Q30(0.1037906483f/M_PI), Q30(0.1115923747f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0275881495f/M_PI), Q30(0.0427365713f/M_PI), Q30(0.0632618815f/M_PI), Q30(0.0736731067f/M_PI), Q30(0.0791663304f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0195873566f/M_PI), Q30(0.0303316917f/M_PI), Q30(0.0448668823f/M_PI), Q30(0.0522258915f/M_PI), Q30(0.0561044961f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0110366223f/M_PI), Q30(0.0170863140f/M_PI), Q30(0.0252620988f/M_PI), Q30(0.0293955617f/M_PI), Q30(0.0315726399f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0062100487f/M_PI), Q30(0.0096135242f/M_PI), Q30(0.0142110568f/M_PI), Q30(0.0165348612f/M_PI), Q30(0.0177587029f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0034913034f/M_PI), Q30(0.0054070661f/M_PI), Q30(0.0079917293f/M_PI), Q30(0.0092999367f/M_PI), Q30(0.0099875759f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0019607407f/M_PI), Q30(0.0030395309f/M_PI), Q30(0.0044951206f/M_PI), Q30(0.0052305623f/M_PI), Q30(0.0056152637f/M_PI),
+      Q30(0.0000000000f/M_PI), Q30(0.0011053939f/M_PI), Q30(0.0017089852f/M_PI), Q30(0.0025254129f/M_PI), Q30(0.0029398468f/M_PI), Q30(0.0031597170f/M_PI)
+    };
+
+    static const int iid_par_dequant_c1[] = {
+        //iid_par_dequant_default
+        Q30(1.41198278375959f), Q30(1.40313815268360f), Q30(1.38687670404960f), Q30(1.34839972492648f),
+        Q30(1.29124937110028f), Q30(1.19603741667993f), Q30(1.10737240362323f), Q30(1),
+        Q30(0.87961716655242f), Q30(0.75464859232732f), Q30(0.57677990744575f), Q30(0.42640143271122f),
+        Q30(0.27671828230984f), Q30(0.17664462766713f), Q30(0.07940162697653f),
+        //iid_par_dequant_fine
+        Q30(1.41420649135832f), Q30(1.41419120222364f), Q30(1.41414285699784f), Q30(1.41399000859438f),
+        Q30(1.41350698548044f), Q30(1.41198278375959f), Q30(1.40977302262355f), Q30(1.40539479488545f),
+        Q30(1.39677960498402f), Q30(1.38005309967827f), Q30(1.34839972492648f), Q30(1.31392017367631f),
+        Q30(1.26431008149654f), Q30(1.19603741667993f), Q30(1.10737240362323f), Q30(1),
+        Q30(0.87961716655242f), Q30(0.75464859232732f), Q30(0.63365607219232f), Q30(0.52308104267543f),
+        Q30(0.42640143271122f), Q30(0.30895540465965f), Q30(0.22137464873077f), Q30(0.15768788954414f),
+        Q30(0.11198225164225f), Q30(0.07940162697653f), Q30(0.04469901562677f), Q30(0.02514469318284f),
+        Q30(0.01414142856998f), Q30(0.00795258154731f), Q30(0.00447211359449f),
+    };
+
+    static const int acos_icc_invq[] = {
+        Q31(0), Q31(0.178427635f/M_PI), Q31(0.28566733f/M_PI), Q31(0.46307236f/M_PI), Q31(0.59716315f/M_PI), Q31(0.78539816f/M_PI), Q31(1.10030855f/M_PI), Q31(1.57079633f/M_PI)
+    };
+    int iid, icc;
+
+    int k, m;
+    static const int8_t f_center_20[] = {
+        -3, -1, 1, 3, 5, 7, 10, 14, 18, 22,
+    };
+    static const int32_t f_center_34[] = {
+      Q31(  2/768.0),Q31(  6/768.0),Q31(10/768.0),Q31(14/768.0),Q31( 18/768.0),Q31( 22/768.0),Q31( 26/768.0),Q31(30/768.0),
+      Q31( 34/768.0),Q31(-10/768.0),Q31(-6/768.0),Q31(-2/768.0),Q31( 51/768.0),Q31( 57/768.0),Q31( 15/768.0),Q31(21/768.0),
+      Q31( 27/768.0),Q31( 33/768.0),Q31(39/768.0),Q31(45/768.0),Q31( 54/768.0),Q31( 66/768.0),Q31( 78/768.0),Q31(42/768.0),
+      Q31(102/768.0),Q31( 66/768.0),Q31(78/768.0),Q31(90/768.0),Q31(102/768.0),Q31(114/768.0),Q31(126/768.0),Q31(90/768.0)
+    };
+    static const int fractional_delay_links[] = { Q31(0.43f), Q31(0.75f), Q31(0.347f) };
+    const int fractional_delay_gain = Q31(0.39f);
+
+    for (pd0 = 0; pd0 < 8; pd0++) {
+        int pd0_re = (ipdopd_cos[pd0]+2)>>2;
+        int pd0_im = (ipdopd_sin[pd0]+2)>>2;
+        for (pd1 = 0; pd1 < 8; pd1++) {
+            int pd1_re = ipdopd_cos[pd1] >> 1;
+            int pd1_im = ipdopd_sin[pd1] >> 1;
+            for (pd2 = 0; pd2 < 8; pd2++) {
+                int shift, round;
+                int pd2_re = ipdopd_cos[pd2];
+                int pd2_im = ipdopd_sin[pd2];
+                int re_smooth = pd0_re + pd1_re + pd2_re;
+                int im_smooth = pd0_im + pd1_im + pd2_im;
+
+                SoftFloat pd_mag = av_int2sf(((ipdopd_cos[(pd0-pd1)&7]+8)>>4) + ((ipdopd_cos[(pd0-pd2)&7]+4)>>3) +
+                                               ((ipdopd_cos[(pd1-pd2)&7]+2)>>2) + 0x15000000, 28);
+                pd_mag = av_div_sf(FLOAT_1, av_sqrt_sf(pd_mag));
+                shift = 30 - pd_mag.exp;
+                round = 1 << (shift-1);
+                pd_re_smooth[pd0*64+pd1*8+pd2] = (int)(((int64_t)re_smooth * pd_mag.mant + round) >> shift);
+                pd_im_smooth[pd0*64+pd1*8+pd2] = (int)(((int64_t)im_smooth * pd_mag.mant + round) >> shift);
+            }
+        }
+    }
+
+    idx = 0;
+    for (iid = 0; iid < 46; iid++) {
+        int c1, c2;
+
+        c1 = iid_par_dequant_c1[iid];
+        if (iid < 15)
+          c2 = iid_par_dequant_c1[14-iid];
+        else
+          c2 = iid_par_dequant_c1[60-iid];
+
+        for (icc = 0; icc < 8; icc++) {
+            /*if (PS_BASELINE || ps->icc_mode < 3)*/{
+                int alpha, beta;
+                int ca, sa, cb, sb;
+
+                alpha = acos_icc_invq[icc];
+                beta = (int)(((int64_t)alpha * 1518500250 + 0x40000000) >> 31);
+                alpha >>= 1;
+                beta = (int)(((int64_t)beta * (c1 - c2) + 0x40000000) >> 31);
+                av_sincos_sf(beta + alpha, &sa, &ca);
+                av_sincos_sf(beta - alpha, &sb, &cb);
+
+                HA[iid][icc][0] = (int)(((int64_t)c2 * ca + 0x20000000) >> 30);
+                HA[iid][icc][1] = (int)(((int64_t)c1 * cb + 0x20000000) >> 30);
+                HA[iid][icc][2] = (int)(((int64_t)c2 * sa + 0x20000000) >> 30);
+                HA[iid][icc][3] = (int)(((int64_t)c1 * sb + 0x20000000) >> 30);
+            } /* else */ {
+                int alpha_int, gamma_int;
+                int alpha_c_int, alpha_s_int, gamma_c_int, gamma_s_int;
+
+                alpha_int = alpha_tab[idx];
+                gamma_int = gamma_tab[idx];
+
+                av_sincos_sf(alpha_int, &alpha_s_int, &alpha_c_int);
+                av_sincos_sf(gamma_int, &gamma_s_int, &gamma_c_int);
+
+                alpha_c_int = (int)(((int64_t)alpha_c_int * 1518500250 + 0x20000000) >> 30);
+                alpha_s_int = (int)(((int64_t)alpha_s_int * 1518500250 + 0x20000000) >> 30);
+
+                HB[iid][icc][0] = (int)(((int64_t)alpha_c_int * gamma_c_int + 0x20000000) >> 30);
+                HB[iid][icc][1] = (int)(((int64_t)alpha_s_int * gamma_c_int + 0x20000000) >> 30);
+                HB[iid][icc][2] = -(int)(((int64_t)alpha_s_int * gamma_s_int + 0x20000000) >> 30);
+                HB[iid][icc][3] = (int)(((int64_t)alpha_c_int * gamma_s_int + 0x20000000) >> 30);
+            }
+
+            if (icc < 5 || icc > 6)
+              idx++;
+        }
+    }
+
+    for (k = 0; k < NR_ALLPASS_BANDS20; k++) {
+        int theta;
+        int64_t f_center;
+        int c, s;
+
+        if (k < FF_ARRAY_ELEMS(f_center_20))
+          f_center = f_center_20[k];
+        else
+          f_center = (k << 3) - 52;
+
+        for (m = 0; m < PS_AP_LINKS; m++) {
+            theta = (int)(((int64_t)fractional_delay_links[m] * f_center + 8) >> 4);
+            av_sincos_sf(-theta, &s, &c);
+            Q_fract_allpass[0][k][m][0] = c;
+            Q_fract_allpass[0][k][m][1] = s;
+        }
+
+        theta = (int)(((int64_t)fractional_delay_gain * f_center + 8) >> 4);
+        av_sincos_sf(-theta, &s, &c);
+        phi_fract[0][k][0] = c;
+        phi_fract[0][k][1] = s;
+    }
+
+    for (k = 0; k < NR_ALLPASS_BANDS34; k++) {
+        int theta, f_center;
+        int c, s;
+
+        if (k < FF_ARRAY_ELEMS(f_center_34))
+            f_center = f_center_34[k];
+        else
+            f_center = ((int64_t)k << 26) - (53 << 25);
+
+        for (m = 0; m < PS_AP_LINKS; m++) {
+            theta = (int)(((int64_t)fractional_delay_links[m] * f_center + 0x10000000) >> 27);
+            av_sincos_sf(-theta, &s, &c);
+            Q_fract_allpass[1][k][m][0] = c;
+            Q_fract_allpass[1][k][m][1] = s;
+        }
+
+        theta = (int)(((int64_t)fractional_delay_gain * f_center + 0x10000000) >> 27);
+        av_sincos_sf(-theta, &s, &c);
+        phi_fract[1][k][0] = c;
+        phi_fract[1][k][1] = s;
+    }
+
+    make_filters_from_proto(f20_0_8,  g0_Q8,   8);
+    make_filters_from_proto(f34_0_12, g0_Q12, 12);
+    make_filters_from_proto(f34_1_8,  g1_Q8,   8);
+    make_filters_from_proto(f34_2_4,  g2_Q4,   4);
+}
+#endif /* CONFIG_HARDCODED_TABLES */
+
+#endif /* AACPS_FIXED_TABLEGEN_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacps_float.c

@@ -0,0 +1,24 @@
+/*
+ * MPEG-4 Parametric Stereo decoding functions
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define USE_FIXED 0
+
+#include "aacps.c"

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacps_tablegen.c

@@ -0,0 +1,24 @@
+/*
+ * Generate a header file for hardcoded Parametric Stereo tables
+ *
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define USE_FIXED 0
+#include "aacps_tablegen_template.c"

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacps_tablegen.h

@@ -0,0 +1,217 @@
+/*
+ * Header file for hardcoded Parametric Stereo tables
+ *
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AACPS_TABLEGEN_H
+#define AACPS_TABLEGEN_H
+
+#include <math.h>
+#include <stdint.h>
+
+#if CONFIG_HARDCODED_TABLES
+#define ps_tableinit()
+#define TABLE_CONST const
+#include "libavcodec/aacps_tables.h"
+#else
+#include "libavutil/common.h"
+#include "libavutil/libm.h"
+#include "libavutil/mathematics.h"
+#include "libavutil/mem.h"
+#define NR_ALLPASS_BANDS20 30
+#define NR_ALLPASS_BANDS34 50
+#define PS_AP_LINKS 3
+#define TABLE_CONST
+static float pd_re_smooth[8*8*8];
+static float pd_im_smooth[8*8*8];
+static float HA[46][8][4];
+static float HB[46][8][4];
+static DECLARE_ALIGNED(16, float, f20_0_8) [ 8][8][2];
+static DECLARE_ALIGNED(16, float, f34_0_12)[12][8][2];
+static DECLARE_ALIGNED(16, float, f34_1_8) [ 8][8][2];
+static DECLARE_ALIGNED(16, float, f34_2_4) [ 4][8][2];
+static TABLE_CONST DECLARE_ALIGNED(16, float, Q_fract_allpass)[2][50][3][2];
+static DECLARE_ALIGNED(16, float, phi_fract)[2][50][2];
+
+static const float g0_Q8[] = {
+    0.00746082949812f, 0.02270420949825f, 0.04546865930473f, 0.07266113929591f,
+    0.09885108575264f, 0.11793710567217f, 0.125f
+};
+
+static const float g0_Q12[] = {
+    0.04081179924692f, 0.03812810994926f, 0.05144908135699f, 0.06399831151592f,
+    0.07428313801106f, 0.08100347892914f, 0.08333333333333f
+};
+
+static const float g1_Q8[] = {
+    0.01565675600122f, 0.03752716391991f, 0.05417891378782f, 0.08417044116767f,
+    0.10307344158036f, 0.12222452249753f, 0.125f
+};
+
+static const float g2_Q4[] = {
+    -0.05908211155639f, -0.04871498374946f, 0.0f,   0.07778723915851f,
+     0.16486303567403f,  0.23279856662996f, 0.25f
+};
+
+static av_cold void make_filters_from_proto(float (*filter)[8][2], const float *proto, int bands)
+{
+    int q, n;
+    for (q = 0; q < bands; q++) {
+        for (n = 0; n < 7; n++) {
+            double theta = 2 * M_PI * (q + 0.5) * (n - 6) / bands;
+            filter[q][n][0] = proto[n] *  cos(theta);
+            filter[q][n][1] = proto[n] * -sin(theta);
+        }
+    }
+}
+
+static av_cold void ps_tableinit(void)
+{
+    static const float ipdopd_sin[] = { 0, M_SQRT1_2, 1,  M_SQRT1_2,  0, -M_SQRT1_2, -1, -M_SQRT1_2 };
+    static const float ipdopd_cos[] = { 1, M_SQRT1_2, 0, -M_SQRT1_2, -1, -M_SQRT1_2,  0,  M_SQRT1_2 };
+    int pd0, pd1, pd2;
+
+    static const float iid_par_dequant[] = {
+        //iid_par_dequant_default
+        0.05623413251903, 0.12589254117942, 0.19952623149689, 0.31622776601684,
+        0.44668359215096, 0.63095734448019, 0.79432823472428, 1,
+        1.25892541179417, 1.58489319246111, 2.23872113856834, 3.16227766016838,
+        5.01187233627272, 7.94328234724282, 17.7827941003892,
+        //iid_par_dequant_fine
+        0.00316227766017, 0.00562341325190, 0.01,             0.01778279410039,
+        0.03162277660168, 0.05623413251903, 0.07943282347243, 0.11220184543020,
+        0.15848931924611, 0.22387211385683, 0.31622776601684, 0.39810717055350,
+        0.50118723362727, 0.63095734448019, 0.79432823472428, 1,
+        1.25892541179417, 1.58489319246111, 1.99526231496888, 2.51188643150958,
+        3.16227766016838, 4.46683592150963, 6.30957344480193, 8.91250938133745,
+        12.5892541179417, 17.7827941003892, 31.6227766016838, 56.2341325190349,
+        100,              177.827941003892, 316.227766016837,
+    };
+    static const float icc_invq[] = {
+        1, 0.937,      0.84118,    0.60092,    0.36764,   0,      -0.589,    -1
+    };
+    static const float acos_icc_invq[] = {
+        0, 0.35685527, 0.57133466, 0.92614472, 1.1943263, M_PI/2, 2.2006171, M_PI
+    };
+    int iid, icc;
+
+    int k, m;
+    static const int8_t f_center_20[] = {
+        -3, -1, 1, 3, 5, 7, 10, 14, 18, 22,
+    };
+    static const int8_t f_center_34[] = {
+         2,  6, 10, 14, 18, 22, 26, 30,
+        34,-10, -6, -2, 51, 57, 15, 21,
+        27, 33, 39, 45, 54, 66, 78, 42,
+       102, 66, 78, 90,102,114,126, 90,
+    };
+    static const float fractional_delay_links[] = { 0.43f, 0.75f, 0.347f };
+    const float fractional_delay_gain = 0.39f;
+
+    for (pd0 = 0; pd0 < 8; pd0++) {
+        float pd0_re = ipdopd_cos[pd0];
+        float pd0_im = ipdopd_sin[pd0];
+        for (pd1 = 0; pd1 < 8; pd1++) {
+            float pd1_re = ipdopd_cos[pd1];
+            float pd1_im = ipdopd_sin[pd1];
+            for (pd2 = 0; pd2 < 8; pd2++) {
+                float pd2_re = ipdopd_cos[pd2];
+                float pd2_im = ipdopd_sin[pd2];
+                float re_smooth = 0.25f * pd0_re + 0.5f * pd1_re + pd2_re;
+                float im_smooth = 0.25f * pd0_im + 0.5f * pd1_im + pd2_im;
+                float pd_mag = 1 / sqrt(im_smooth * im_smooth + re_smooth * re_smooth);
+                pd_re_smooth[pd0*64+pd1*8+pd2] = re_smooth * pd_mag;
+                pd_im_smooth[pd0*64+pd1*8+pd2] = im_smooth * pd_mag;
+            }
+        }
+    }
+
+    for (iid = 0; iid < 46; iid++) {
+        float c = iid_par_dequant[iid]; ///< Linear Inter-channel Intensity Difference
+        float c1 = (float)M_SQRT2 / sqrtf(1.0f + c*c);
+        float c2 = c * c1;
+        for (icc = 0; icc < 8; icc++) {
+            /*if (PS_BASELINE || ps->icc_mode < 3)*/ {
+                float alpha = 0.5f * acos_icc_invq[icc];
+                float beta  = alpha * (c1 - c2) * (float)M_SQRT1_2;
+                HA[iid][icc][0] = c2 * cosf(beta + alpha);
+                HA[iid][icc][1] = c1 * cosf(beta - alpha);
+                HA[iid][icc][2] = c2 * sinf(beta + alpha);
+                HA[iid][icc][3] = c1 * sinf(beta - alpha);
+            } /* else */ {
+                float alpha, gamma, mu, rho;
+                float alpha_c, alpha_s, gamma_c, gamma_s;
+                rho = FFMAX(icc_invq[icc], 0.05f);
+                alpha = 0.5f * atan2f(2.0f * c * rho, c*c - 1.0f);
+                mu = c + 1.0f / c;
+                mu = sqrtf(1 + (4 * rho * rho - 4)/(mu * mu));
+                gamma = atanf(sqrtf((1.0f - mu)/(1.0f + mu)));
+                if (alpha < 0) alpha += M_PI/2;
+                alpha_c = cosf(alpha);
+                alpha_s = sinf(alpha);
+                gamma_c = cosf(gamma);
+                gamma_s = sinf(gamma);
+                HB[iid][icc][0] =  M_SQRT2 * alpha_c * gamma_c;
+                HB[iid][icc][1] =  M_SQRT2 * alpha_s * gamma_c;
+                HB[iid][icc][2] = -M_SQRT2 * alpha_s * gamma_s;
+                HB[iid][icc][3] =  M_SQRT2 * alpha_c * gamma_s;
+            }
+        }
+    }
+
+    for (k = 0; k < NR_ALLPASS_BANDS20; k++) {
+        double f_center, theta;
+        if (k < FF_ARRAY_ELEMS(f_center_20))
+            f_center = f_center_20[k] * 0.125;
+        else
+            f_center = k - 6.5f;
+        for (m = 0; m < PS_AP_LINKS; m++) {
+            theta = -M_PI * fractional_delay_links[m] * f_center;
+            Q_fract_allpass[0][k][m][0] = cos(theta);
+            Q_fract_allpass[0][k][m][1] = sin(theta);
+        }
+        theta = -M_PI*fractional_delay_gain*f_center;
+        phi_fract[0][k][0] = cos(theta);
+        phi_fract[0][k][1] = sin(theta);
+    }
+    for (k = 0; k < NR_ALLPASS_BANDS34; k++) {
+        double f_center, theta;
+        if (k < FF_ARRAY_ELEMS(f_center_34))
+            f_center = f_center_34[k] / 24.0;
+        else
+            f_center = k - 26.5f;
+        for (m = 0; m < PS_AP_LINKS; m++) {
+            theta = -M_PI * fractional_delay_links[m] * f_center;
+            Q_fract_allpass[1][k][m][0] = cos(theta);
+            Q_fract_allpass[1][k][m][1] = sin(theta);
+        }
+        theta = -M_PI*fractional_delay_gain*f_center;
+        phi_fract[1][k][0] = cos(theta);
+        phi_fract[1][k][1] = sin(theta);
+    }
+
+    make_filters_from_proto(f20_0_8,  g0_Q8,   8);
+    make_filters_from_proto(f34_0_12, g0_Q12, 12);
+    make_filters_from_proto(f34_1_8,  g1_Q8,   8);
+    make_filters_from_proto(f34_2_4,  g2_Q4,   4);
+}
+#endif /* CONFIG_HARDCODED_TABLES */
+
+#endif /* AACPS_TABLEGEN_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacps_tablegen_template.c

@@ -0,0 +1,107 @@
+/*
+ * Generate a header file for hardcoded Parametric Stereo tables
+ *
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdlib.h>
+#define CONFIG_HARDCODED_TABLES 0
+#include "aac_defines.h"
+
+#if USE_FIXED
+#define TYPE_NAME "int32_t"
+#define INT32FLOAT int32_t
+#define ARRAY_RENAME(x) write_int32_t_ ## x
+#define ARRAY_URENAME(x) write_uint32_t_ ## x
+#include "aacps_fixed_tablegen.h"
+#else
+#define TYPE_NAME "float"
+#define INT32FLOAT float
+#define ARRAY_RENAME(x) write_float_ ## x
+#define ARRAY_URENAME(x) write_float_ ## x
+#include "aacps_tablegen.h"
+#endif /* USE_FIXED */
+#include "tableprint.h"
+
+void ARRAY_RENAME(3d_array) (const void *p, int b, int c, int d)
+{
+    int i;
+    const INT32FLOAT *f = p;
+    for (i = 0; i < b; i++) {
+        printf("{\n");
+        ARRAY_URENAME(2d_array)(f, c, d);
+        printf("},\n");
+        f += c * d;
+    }
+}
+
+void ARRAY_RENAME(4d_array) (const void *p, int a, int b, int c, int d)
+{
+    int i;
+    const INT32FLOAT *f = p;
+    for (i = 0; i < a; i++) {
+        printf("{\n");
+        ARRAY_RENAME(3d_array)(f, b, c, d);
+        printf("},\n");
+        f += b * c * d;
+    }
+}
+
+int main(void)
+{
+    ps_tableinit();
+
+    write_fileheader();
+
+    printf("static const %s pd_re_smooth[8*8*8] = {\n", TYPE_NAME);
+    ARRAY_RENAME(array)(pd_re_smooth, 8*8*8);
+    printf("};\n");
+    printf("static const %s pd_im_smooth[8*8*8] = {\n", TYPE_NAME);
+    ARRAY_RENAME(array)(pd_im_smooth, 8*8*8);
+    printf("};\n");
+
+    printf("static const %s HA[46][8][4] = {\n", TYPE_NAME);
+    ARRAY_RENAME(3d_array)(HA, 46, 8, 4);
+    printf("};\n");
+    printf("static const %s HB[46][8][4] = {\n", TYPE_NAME);
+    ARRAY_RENAME(3d_array)(HB, 46, 8, 4);
+    printf("};\n");
+
+    printf("static const DECLARE_ALIGNED(16, %s, f20_0_8)[8][8][2] = {\n", TYPE_NAME);
+    ARRAY_RENAME(3d_array)(f20_0_8, 8, 8, 2);
+    printf("};\n");
+    printf("static const DECLARE_ALIGNED(16, %s, f34_0_12)[12][8][2] = {\n", TYPE_NAME);
+    ARRAY_RENAME(3d_array)(f34_0_12, 12, 8, 2);
+    printf("};\n");
+    printf("static const DECLARE_ALIGNED(16, %s, f34_1_8)[8][8][2] = {\n", TYPE_NAME);
+    ARRAY_RENAME(3d_array)(f34_1_8, 8, 8, 2);
+    printf("};\n");
+    printf("static const DECLARE_ALIGNED(16, %s, f34_2_4)[4][8][2] = {\n", TYPE_NAME);
+    ARRAY_RENAME(3d_array)(f34_2_4, 4, 8, 2);
+    printf("};\n");
+
+    printf("static const DECLARE_ALIGNED(16, %s, Q_fract_allpass)[2][50][3][2] = {\n", TYPE_NAME);
+    ARRAY_RENAME(4d_array)(Q_fract_allpass, 2, 50, 3, 2);
+    printf("};\n");
+    printf("static const DECLARE_ALIGNED(16, %s, phi_fract)[2][50][2] = {\n", TYPE_NAME);
+    ARRAY_RENAME(3d_array)(phi_fract, 2, 50, 2);
+    printf("};\n");
+
+    return 0;
+}

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacpsdata.c

@@ -0,0 +1,163 @@
+/*
+ * MPEG-4 Parametric Stereo data tables
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+static const uint8_t huff_iid_df1_bits[] = {
+    18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 18, 17, 17, 16, 16, 15, 14, 14,
+    13, 12, 12, 11, 10, 10,  8,  7,  6,  5,  4,  3,  1,  3,  4,  5,  6,  7,
+     8,  9, 10, 11, 11, 12, 13, 14, 14, 15, 16, 16, 17, 17, 18, 17, 18, 18,
+    18, 18, 18, 18, 18, 18, 18,
+};
+
+static const uint32_t huff_iid_df1_codes[] = {
+    0x01FEB4, 0x01FEB5, 0x01FD76, 0x01FD77, 0x01FD74, 0x01FD75, 0x01FE8A,
+    0x01FE8B, 0x01FE88, 0x00FE80, 0x01FEB6, 0x00FE82, 0x00FEB8, 0x007F42,
+    0x007FAE, 0x003FAF, 0x001FD1, 0x001FE9, 0x000FE9, 0x0007EA, 0x0007FB,
+    0x0003FB, 0x0001FB, 0x0001FF, 0x00007C, 0x00003C, 0x00001C, 0x00000C,
+    0x000000, 0x000001, 0x000001, 0x000002, 0x000001, 0x00000D, 0x00001D,
+    0x00003D, 0x00007D, 0x0000FC, 0x0001FC, 0x0003FC, 0x0003F4, 0x0007EB,
+    0x000FEA, 0x001FEA, 0x001FD6, 0x003FD0, 0x007FAF, 0x007F43, 0x00FEB9,
+    0x00FE83, 0x01FEB7, 0x00FE81, 0x01FE89, 0x01FE8E, 0x01FE8F, 0x01FE8C,
+    0x01FE8D, 0x01FEB2, 0x01FEB3, 0x01FEB0, 0x01FEB1,
+};
+
+static const uint8_t huff_iid_dt1_bits[] = {
+    16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13,
+    13, 13, 12, 12, 11, 10,  9,  9,  7,  6,  5,  3,  1,  2,  5,  6,  7,  8,
+     9, 10, 11, 11, 12, 12, 13, 13, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16,
+    16, 16, 16, 16, 16, 16, 16,
+};
+
+static const uint16_t huff_iid_dt1_codes[] = {
+    0x004ED4, 0x004ED5, 0x004ECE, 0x004ECF, 0x004ECC, 0x004ED6, 0x004ED8,
+    0x004F46, 0x004F60, 0x002718, 0x002719, 0x002764, 0x002765, 0x00276D,
+    0x0027B1, 0x0013B7, 0x0013D6, 0x0009C7, 0x0009E9, 0x0009ED, 0x0004EE,
+    0x0004F7, 0x000278, 0x000139, 0x00009A, 0x00009F, 0x000020, 0x000011,
+    0x00000A, 0x000003, 0x000001, 0x000000, 0x00000B, 0x000012, 0x000021,
+    0x00004C, 0x00009B, 0x00013A, 0x000279, 0x000270, 0x0004EF, 0x0004E2,
+    0x0009EA, 0x0009D8, 0x0013D7, 0x0013D0, 0x0027B2, 0x0027A2, 0x00271A,
+    0x00271B, 0x004F66, 0x004F67, 0x004F61, 0x004F47, 0x004ED9, 0x004ED7,
+    0x004ECD, 0x004ED2, 0x004ED3, 0x004ED0, 0x004ED1,
+};
+
+static const uint8_t huff_iid_df0_bits[] = {
+    17, 17, 17, 17, 16, 15, 13, 10,  9,  7,  6,  5,  4,  3,  1,  3,  4,  5,
+     6,  6,  8, 11, 13, 14, 14, 15, 17, 18, 18,
+};
+
+static const uint32_t huff_iid_df0_codes[] = {
+    0x01FFFB, 0x01FFFC, 0x01FFFD, 0x01FFFA, 0x00FFFC, 0x007FFC, 0x001FFD,
+    0x0003FE, 0x0001FE, 0x00007E, 0x00003C, 0x00001D, 0x00000D, 0x000005,
+    0x000000, 0x000004, 0x00000C, 0x00001C, 0x00003D, 0x00003E, 0x0000FE,
+    0x0007FE, 0x001FFC, 0x003FFC, 0x003FFD, 0x007FFD, 0x01FFFE, 0x03FFFE,
+    0x03FFFF,
+};
+
+static const uint8_t huff_iid_dt0_bits[] = {
+    19, 19, 19, 20, 20, 20, 17, 15, 12, 10,  8,  6,  4,  2,  1,  3,  5,  7,
+     9, 11, 13, 14, 17, 19, 20, 20, 20, 20, 20,
+};
+
+static const uint32_t huff_iid_dt0_codes[] = {
+    0x07FFF9, 0x07FFFA, 0x07FFFB, 0x0FFFF8, 0x0FFFF9, 0x0FFFFA, 0x01FFFD,
+    0x007FFE, 0x000FFE, 0x0003FE, 0x0000FE, 0x00003E, 0x00000E, 0x000002,
+    0x000000, 0x000006, 0x00001E, 0x00007E, 0x0001FE, 0x0007FE, 0x001FFE,
+    0x003FFE, 0x01FFFC, 0x07FFF8, 0x0FFFFB, 0x0FFFFC, 0x0FFFFD, 0x0FFFFE,
+    0x0FFFFF,
+};
+
+static const uint8_t huff_icc_df_bits[] = {
+    14, 14, 12, 10, 7, 5, 3, 1, 2, 4, 6, 8, 9, 11, 13,
+};
+
+static const uint16_t huff_icc_df_codes[] = {
+    0x3FFF, 0x3FFE, 0x0FFE, 0x03FE, 0x007E, 0x001E, 0x0006, 0x0000,
+    0x0002, 0x000E, 0x003E, 0x00FE, 0x01FE, 0x07FE, 0x1FFE,
+};
+
+static const uint8_t huff_icc_dt_bits[] = {
+    14, 13, 11, 9, 7, 5, 3, 1, 2, 4, 6, 8, 10, 12, 14,
+};
+
+static const uint16_t huff_icc_dt_codes[] = {
+    0x3FFE, 0x1FFE, 0x07FE, 0x01FE, 0x007E, 0x001E, 0x0006, 0x0000,
+    0x0002, 0x000E, 0x003E, 0x00FE, 0x03FE, 0x0FFE, 0x3FFF,
+};
+
+static const uint8_t huff_ipd_df_bits[] = {
+    1, 3, 4, 4, 4, 4, 4, 4,
+};
+
+static const uint8_t huff_ipd_df_codes[] = {
+    0x01, 0x00, 0x06, 0x04, 0x02, 0x03, 0x05, 0x07,
+};
+
+static const uint8_t huff_ipd_dt_bits[] = {
+    1, 3, 4, 5, 5, 4, 4, 3,
+};
+
+static const uint8_t huff_ipd_dt_codes[] = {
+    0x01, 0x02, 0x02, 0x03, 0x02, 0x00, 0x03, 0x03,
+};
+
+static const uint8_t huff_opd_df_bits[] = {
+    1, 3, 4, 4, 5, 5, 4, 3,
+};
+
+static const uint8_t huff_opd_df_codes[] = {
+    0x01, 0x01, 0x06, 0x04, 0x0F, 0x0E, 0x05, 0x00,
+};
+
+static const uint8_t huff_opd_dt_bits[] = {
+    1, 3, 4, 5, 5, 4, 4, 3,
+};
+
+static const uint8_t huff_opd_dt_codes[] = {
+    0x01, 0x02, 0x01, 0x07, 0x06, 0x00, 0x02, 0x03,
+};
+
+static const int8_t huff_offset[] = {
+    30, 30,
+    14, 14,
+    7, 7,
+    0, 0,
+    0, 0,
+};
+
+///Table 8.48
+static const int8_t k_to_i_20[] = {
+     1,  0,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 14, 15,
+    15, 15, 16, 16, 16, 16, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18,
+    18, 18, 18, 18, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
+    19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19
+};
+///Table 8.49
+static const int8_t k_to_i_34[] = {
+     0,  1,  2,  3,  4,  5,  6,  6,  7,  2,  1,  0, 10, 10,  4,  5,  6,  7,  8,
+     9, 10, 11, 12,  9, 14, 11, 12, 13, 14, 15, 16, 13, 16, 17, 18, 19, 20, 21,
+    22, 22, 23, 23, 24, 24, 25, 25, 26, 26, 27, 27, 27, 28, 28, 28, 29, 29, 29,
+    30, 30, 30, 31, 31, 31, 31, 32, 32, 32, 32, 33, 33, 33, 33, 33, 33, 33, 33,
+    33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33
+};
+
+static const INTFLOAT g1_Q2[] = {
+    Q31(0.0f),  Q31(0.01899487526049f), Q31(0.0f), Q31(-0.07293139167538f),
+    Q31(0.0f),  Q31(0.30596630545168f), Q31(0.5f)
+};

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacpsdsp.h

@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2012 Mans Rullgard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef LIBAVCODEC_AACPSDSP_H
+#define LIBAVCODEC_AACPSDSP_H
+
+#include "aac_defines.h"
+
+#define PS_QMF_TIME_SLOTS 32
+#define PS_AP_LINKS 3
+#define PS_MAX_AP_DELAY 5
+
+typedef struct PSDSPContext {
+    void (*add_squares)(INTFLOAT *dst, const INTFLOAT (*src)[2], int n);
+    void (*mul_pair_single)(INTFLOAT (*dst)[2], INTFLOAT (*src0)[2], INTFLOAT *src1,
+                            int n);
+    void (*hybrid_analysis)(INTFLOAT (*out)[2], INTFLOAT (*in)[2],
+                            const INTFLOAT (*filter)[8][2],
+                            int stride, int n);
+    void (*hybrid_analysis_ileave)(INTFLOAT (*out)[32][2], INTFLOAT L[2][38][64],
+                                   int i, int len);
+    void (*hybrid_synthesis_deint)(INTFLOAT out[2][38][64], INTFLOAT (*in)[32][2],
+                                   int i, int len);
+    void (*decorrelate)(INTFLOAT (*out)[2], INTFLOAT (*delay)[2],
+                        INTFLOAT (*ap_delay)[PS_QMF_TIME_SLOTS+PS_MAX_AP_DELAY][2],
+                        const INTFLOAT phi_fract[2], const INTFLOAT (*Q_fract)[2],
+                        const INTFLOAT *transient_gain,
+                        INTFLOAT g_decay_slope,
+                        int len);
+    void (*stereo_interpolate[2])(INTFLOAT (*l)[2], INTFLOAT (*r)[2],
+                                  INTFLOAT h[2][4], INTFLOAT h_step[2][4],
+                                  int len);
+} PSDSPContext;
+
+void AAC_RENAME(ff_psdsp_init)(PSDSPContext *s);
+void ff_psdsp_init_arm(PSDSPContext *s);
+void ff_psdsp_init_mips(PSDSPContext *s);
+void ff_psdsp_init_x86(PSDSPContext *s);
+
+#endif /* LIBAVCODEC_AACPSDSP_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacpsdsp_fixed.c

@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define USE_FIXED 1
+
+#include "aacpsdsp_template.c"

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacpsdsp_float.c

@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define USE_FIXED 0
+
+#include "aacpsdsp_template.c"

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacpsdsp_template.c

@@ -0,0 +1,230 @@
+/*
+ * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Note: Rounding-to-nearest used unless otherwise stated
+ *
+ */
+#include <stdint.h>
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "aacpsdsp.h"
+
+static void ps_add_squares_c(INTFLOAT *dst, const INTFLOAT (*src)[2], int n)
+{
+    int i;
+    for (i = 0; i < n; i++)
+        dst[i] += AAC_MADD28(src[i][0], src[i][0], src[i][1], src[i][1]);
+}
+
+static void ps_mul_pair_single_c(INTFLOAT (*dst)[2], INTFLOAT (*src0)[2], INTFLOAT *src1,
+                                 int n)
+{
+    int i;
+    for (i = 0; i < n; i++) {
+        dst[i][0] = AAC_MUL16(src0[i][0], src1[i]);
+        dst[i][1] = AAC_MUL16(src0[i][1], src1[i]);
+    }
+}
+
+static void ps_hybrid_analysis_c(INTFLOAT (*out)[2], INTFLOAT (*in)[2],
+                                 const INTFLOAT (*filter)[8][2],
+                                 int stride, int n)
+{
+    int i, j;
+
+    for (i = 0; i < n; i++) {
+        INT64FLOAT sum_re = (INT64FLOAT)filter[i][6][0] * in[6][0];
+        INT64FLOAT sum_im = (INT64FLOAT)filter[i][6][0] * in[6][1];
+
+        for (j = 0; j < 6; j++) {
+            INTFLOAT in0_re = in[j][0];
+            INTFLOAT in0_im = in[j][1];
+            INTFLOAT in1_re = in[12-j][0];
+            INTFLOAT in1_im = in[12-j][1];
+            sum_re += (INT64FLOAT)filter[i][j][0] * (in0_re + in1_re) -
+                      (INT64FLOAT)filter[i][j][1] * (in0_im - in1_im);
+            sum_im += (INT64FLOAT)filter[i][j][0] * (in0_im + in1_im) +
+                      (INT64FLOAT)filter[i][j][1] * (in0_re - in1_re);
+        }
+#if USE_FIXED
+        out[i * stride][0] = (int)((sum_re + 0x40000000) >> 31);
+        out[i * stride][1] = (int)((sum_im + 0x40000000) >> 31);
+#else
+        out[i * stride][0] = sum_re;
+        out[i * stride][1] = sum_im;
+#endif /* USE_FIXED */
+    }
+}
+static void ps_hybrid_analysis_ileave_c(INTFLOAT (*out)[32][2], INTFLOAT L[2][38][64],
+                                      int i, int len)
+{
+    int j;
+
+    for (; i < 64; i++) {
+        for (j = 0; j < len; j++) {
+            out[i][j][0] = L[0][j][i];
+            out[i][j][1] = L[1][j][i];
+        }
+    }
+}
+
+static void ps_hybrid_synthesis_deint_c(INTFLOAT out[2][38][64],
+                                      INTFLOAT (*in)[32][2],
+                                      int i, int len)
+{
+    int n;
+
+    for (; i < 64; i++) {
+        for (n = 0; n < len; n++) {
+            out[0][n][i] = in[i][n][0];
+            out[1][n][i] = in[i][n][1];
+        }
+    }
+}
+
+static void ps_decorrelate_c(INTFLOAT (*out)[2], INTFLOAT (*delay)[2],
+                             INTFLOAT (*ap_delay)[PS_QMF_TIME_SLOTS + PS_MAX_AP_DELAY][2],
+                             const INTFLOAT phi_fract[2], const INTFLOAT (*Q_fract)[2],
+                             const INTFLOAT *transient_gain,
+                             INTFLOAT g_decay_slope,
+                             int len)
+{
+    static const INTFLOAT a[] = { Q31(0.65143905753106f),
+                               Q31(0.56471812200776f),
+                               Q31(0.48954165955695f) };
+    INTFLOAT ag[PS_AP_LINKS];
+    int m, n;
+
+    for (m = 0; m < PS_AP_LINKS; m++)
+        ag[m] = AAC_MUL30(a[m], g_decay_slope);
+
+    for (n = 0; n < len; n++) {
+        INTFLOAT in_re = AAC_MSUB30(delay[n][0], phi_fract[0], delay[n][1], phi_fract[1]);
+        INTFLOAT in_im = AAC_MADD30(delay[n][0], phi_fract[1], delay[n][1], phi_fract[0]);
+        for (m = 0; m < PS_AP_LINKS; m++) {
+            INTFLOAT a_re                = AAC_MUL31(ag[m], in_re);
+            INTFLOAT a_im                = AAC_MUL31(ag[m], in_im);
+            INTFLOAT link_delay_re       = ap_delay[m][n+2-m][0];
+            INTFLOAT link_delay_im       = ap_delay[m][n+2-m][1];
+            INTFLOAT fractional_delay_re = Q_fract[m][0];
+            INTFLOAT fractional_delay_im = Q_fract[m][1];
+            INTFLOAT apd_re = in_re;
+            INTFLOAT apd_im = in_im;
+            in_re = AAC_MSUB30(link_delay_re, fractional_delay_re,
+                    link_delay_im, fractional_delay_im);
+            in_re -= a_re;
+            in_im = AAC_MADD30(link_delay_re, fractional_delay_im,
+                    link_delay_im, fractional_delay_re);
+            in_im -= a_im;
+            ap_delay[m][n+5][0] = apd_re + AAC_MUL31(ag[m], in_re);
+            ap_delay[m][n+5][1] = apd_im + AAC_MUL31(ag[m], in_im);
+        }
+        out[n][0] = AAC_MUL16(transient_gain[n], in_re);
+        out[n][1] = AAC_MUL16(transient_gain[n], in_im);
+    }
+}
+
+static void ps_stereo_interpolate_c(INTFLOAT (*l)[2], INTFLOAT (*r)[2],
+                                    INTFLOAT h[2][4], INTFLOAT h_step[2][4],
+                                    int len)
+{
+    INTFLOAT h0 = h[0][0];
+    INTFLOAT h1 = h[0][1];
+    INTFLOAT h2 = h[0][2];
+    INTFLOAT h3 = h[0][3];
+    INTFLOAT hs0 = h_step[0][0];
+    INTFLOAT hs1 = h_step[0][1];
+    INTFLOAT hs2 = h_step[0][2];
+    INTFLOAT hs3 = h_step[0][3];
+    int n;
+
+    for (n = 0; n < len; n++) {
+        //l is s, r is d
+        INTFLOAT l_re = l[n][0];
+        INTFLOAT l_im = l[n][1];
+        INTFLOAT r_re = r[n][0];
+        INTFLOAT r_im = r[n][1];
+        h0 += hs0;
+        h1 += hs1;
+        h2 += hs2;
+        h3 += hs3;
+        l[n][0] = AAC_MADD30(h0,  l_re,  h2, r_re);
+        l[n][1] = AAC_MADD30(h0,  l_im,  h2,  r_im);
+        r[n][0] = AAC_MADD30(h1,  l_re,  h3,  r_re);
+        r[n][1] = AAC_MADD30(h1,  l_im,  h3,  r_im);
+    }
+}
+
+static void ps_stereo_interpolate_ipdopd_c(INTFLOAT (*l)[2], INTFLOAT (*r)[2],
+                                           INTFLOAT h[2][4], INTFLOAT h_step[2][4],
+                                           int len)
+{
+    INTFLOAT h00  = h[0][0],      h10  = h[1][0];
+    INTFLOAT h01  = h[0][1],      h11  = h[1][1];
+    INTFLOAT h02  = h[0][2],      h12  = h[1][2];
+    INTFLOAT h03  = h[0][3],      h13  = h[1][3];
+    INTFLOAT hs00 = h_step[0][0], hs10 = h_step[1][0];
+    INTFLOAT hs01 = h_step[0][1], hs11 = h_step[1][1];
+    INTFLOAT hs02 = h_step[0][2], hs12 = h_step[1][2];
+    INTFLOAT hs03 = h_step[0][3], hs13 = h_step[1][3];
+    int n;
+
+    for (n = 0; n < len; n++) {
+        //l is s, r is d
+        INTFLOAT l_re = l[n][0];
+        INTFLOAT l_im = l[n][1];
+        INTFLOAT r_re = r[n][0];
+        INTFLOAT r_im = r[n][1];
+        h00 += hs00;
+        h01 += hs01;
+        h02 += hs02;
+        h03 += hs03;
+        h10 += hs10;
+        h11 += hs11;
+        h12 += hs12;
+        h13 += hs13;
+
+        l[n][0] = AAC_MSUB30_V8(h00, l_re, h02, r_re, h10, l_im, h12, r_im);
+        l[n][1] = AAC_MADD30_V8(h00, l_im, h02, r_im, h10, l_re, h12, r_re);
+        r[n][0] = AAC_MSUB30_V8(h01, l_re, h03, r_re, h11, l_im, h13, r_im);
+        r[n][1] = AAC_MADD30_V8(h01, l_im, h03, r_im, h11, l_re, h13, r_re);
+    }
+}
+
+av_cold void AAC_RENAME(ff_psdsp_init)(PSDSPContext *s)
+{
+    s->add_squares            = ps_add_squares_c;
+    s->mul_pair_single        = ps_mul_pair_single_c;
+    s->hybrid_analysis        = ps_hybrid_analysis_c;
+    s->hybrid_analysis_ileave = ps_hybrid_analysis_ileave_c;
+    s->hybrid_synthesis_deint = ps_hybrid_synthesis_deint_c;
+    s->decorrelate            = ps_decorrelate_c;
+    s->stereo_interpolate[0]  = ps_stereo_interpolate_c;
+    s->stereo_interpolate[1]  = ps_stereo_interpolate_ipdopd_c;
+
+#if !USE_FIXED
+    if (ARCH_ARM)
+        ff_psdsp_init_arm(s);
+    if (ARCH_MIPS)
+        ff_psdsp_init_mips(s);
+    if (ARCH_X86)
+        ff_psdsp_init_x86(s);
+#endif /* !USE_FIXED */
+}

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacsbr.c

@@ -0,0 +1,362 @@
+/*
+ * AAC Spectral Band Replication decoding functions
+ * Copyright (c) 2008-2009 Robert Swain ( rob opendot cl )
+ * Copyright (c) 2009-2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC Spectral Band Replication decoding functions
+ * @author Robert Swain ( rob opendot cl )
+ */
+#define USE_FIXED 0
+
+#include "aac.h"
+#include "sbr.h"
+#include "aacsbr.h"
+#include "aacsbrdata.h"
+#include "aacsbr_tablegen.h"
+#include "fft.h"
+#include "aacps.h"
+#include "sbrdsp.h"
+#include "libavutil/internal.h"
+#include "libavutil/libm.h"
+#include "libavutil/avassert.h"
+
+#include <stdint.h>
+#include <float.h>
+#include <math.h>
+
+#if ARCH_MIPS
+#include "mips/aacsbr_mips.h"
+#endif /* ARCH_MIPS */
+
+static VLC vlc_sbr[10];
+static void aacsbr_func_ptr_init(AACSBRContext *c);
+
+static void make_bands(int16_t* bands, int start, int stop, int num_bands)
+{
+    int k, previous, present;
+    float base, prod;
+
+    base = powf((float)stop / start, 1.0f / num_bands);
+    prod = start;
+    previous = start;
+
+    for (k = 0; k < num_bands-1; k++) {
+        prod *= base;
+        present  = lrintf(prod);
+        bands[k] = present - previous;
+        previous = present;
+    }
+    bands[num_bands-1] = stop - previous;
+}
+
+/// Dequantization and stereo decoding (14496-3 sp04 p203)
+static void sbr_dequant(SpectralBandReplication *sbr, int id_aac)
+{
+    int k, e;
+    int ch;
+
+    if (id_aac == TYPE_CPE && sbr->bs_coupling) {
+        float alpha      = sbr->data[0].bs_amp_res ?  1.0f :  0.5f;
+        float pan_offset = sbr->data[0].bs_amp_res ? 12.0f : 24.0f;
+        for (e = 1; e <= sbr->data[0].bs_num_env; e++) {
+            for (k = 0; k < sbr->n[sbr->data[0].bs_freq_res[e]]; k++) {
+                float temp1 = exp2f(sbr->data[0].env_facs[e][k] * alpha + 7.0f);
+                float temp2 = exp2f((pan_offset - sbr->data[1].env_facs[e][k]) * alpha);
+                float fac;
+                if (temp1 > 1E20) {
+                    av_log(NULL, AV_LOG_ERROR, "envelope scalefactor overflow in dequant\n");
+                    temp1 = 1;
+                }
+                fac   = temp1 / (1.0f + temp2);
+                sbr->data[0].env_facs[e][k] = fac;
+                sbr->data[1].env_facs[e][k] = fac * temp2;
+            }
+        }
+        for (e = 1; e <= sbr->data[0].bs_num_noise; e++) {
+            for (k = 0; k < sbr->n_q; k++) {
+                float temp1 = exp2f(NOISE_FLOOR_OFFSET - sbr->data[0].noise_facs[e][k] + 1);
+                float temp2 = exp2f(12 - sbr->data[1].noise_facs[e][k]);
+                float fac;
+                if (temp1 > 1E20) {
+                    av_log(NULL, AV_LOG_ERROR, "envelope scalefactor overflow in dequant\n");
+                    temp1 = 1;
+                }
+                fac = temp1 / (1.0f + temp2);
+                sbr->data[0].noise_facs[e][k] = fac;
+                sbr->data[1].noise_facs[e][k] = fac * temp2;
+            }
+        }
+    } else { // SCE or one non-coupled CPE
+        for (ch = 0; ch < (id_aac == TYPE_CPE) + 1; ch++) {
+            float alpha = sbr->data[ch].bs_amp_res ? 1.0f : 0.5f;
+            for (e = 1; e <= sbr->data[ch].bs_num_env; e++)
+                for (k = 0; k < sbr->n[sbr->data[ch].bs_freq_res[e]]; k++){
+                    sbr->data[ch].env_facs[e][k] =
+                        exp2f(alpha * sbr->data[ch].env_facs[e][k] + 6.0f);
+                    if (sbr->data[ch].env_facs[e][k] > 1E20) {
+                        av_log(NULL, AV_LOG_ERROR, "envelope scalefactor overflow in dequant\n");
+                        sbr->data[ch].env_facs[e][k] = 1;
+                    }
+                }
+
+            for (e = 1; e <= sbr->data[ch].bs_num_noise; e++)
+                for (k = 0; k < sbr->n_q; k++)
+                    sbr->data[ch].noise_facs[e][k] =
+                        exp2f(NOISE_FLOOR_OFFSET - sbr->data[ch].noise_facs[e][k]);
+        }
+    }
+}
+
+/** High Frequency Generation (14496-3 sp04 p214+) and Inverse Filtering
+ * (14496-3 sp04 p214)
+ * Warning: This routine does not seem numerically stable.
+ */
+static void sbr_hf_inverse_filter(SBRDSPContext *dsp,
+                                  float (*alpha0)[2], float (*alpha1)[2],
+                                  const float X_low[32][40][2], int k0)
+{
+    int k;
+    for (k = 0; k < k0; k++) {
+        LOCAL_ALIGNED_16(float, phi, [3], [2][2]);
+        float dk;
+
+        dsp->autocorrelate(X_low[k], phi);
+
+        dk =  phi[2][1][0] * phi[1][0][0] -
+             (phi[1][1][0] * phi[1][1][0] + phi[1][1][1] * phi[1][1][1]) / 1.000001f;
+
+        if (!dk) {
+            alpha1[k][0] = 0;
+            alpha1[k][1] = 0;
+        } else {
+            float temp_real, temp_im;
+            temp_real = phi[0][0][0] * phi[1][1][0] -
+                        phi[0][0][1] * phi[1][1][1] -
+                        phi[0][1][0] * phi[1][0][0];
+            temp_im   = phi[0][0][0] * phi[1][1][1] +
+                        phi[0][0][1] * phi[1][1][0] -
+                        phi[0][1][1] * phi[1][0][0];
+
+            alpha1[k][0] = temp_real / dk;
+            alpha1[k][1] = temp_im   / dk;
+        }
+
+        if (!phi[1][0][0]) {
+            alpha0[k][0] = 0;
+            alpha0[k][1] = 0;
+        } else {
+            float temp_real, temp_im;
+            temp_real = phi[0][0][0] + alpha1[k][0] * phi[1][1][0] +
+                                       alpha1[k][1] * phi[1][1][1];
+            temp_im   = phi[0][0][1] + alpha1[k][1] * phi[1][1][0] -
+                                       alpha1[k][0] * phi[1][1][1];
+
+            alpha0[k][0] = -temp_real / phi[1][0][0];
+            alpha0[k][1] = -temp_im   / phi[1][0][0];
+        }
+
+        if (alpha1[k][0] * alpha1[k][0] + alpha1[k][1] * alpha1[k][1] >= 16.0f ||
+           alpha0[k][0] * alpha0[k][0] + alpha0[k][1] * alpha0[k][1] >= 16.0f) {
+            alpha1[k][0] = 0;
+            alpha1[k][1] = 0;
+            alpha0[k][0] = 0;
+            alpha0[k][1] = 0;
+        }
+    }
+}
+
+/// Chirp Factors (14496-3 sp04 p214)
+static void sbr_chirp(SpectralBandReplication *sbr, SBRData *ch_data)
+{
+    int i;
+    float new_bw;
+    static const float bw_tab[] = { 0.0f, 0.75f, 0.9f, 0.98f };
+
+    for (i = 0; i < sbr->n_q; i++) {
+        if (ch_data->bs_invf_mode[0][i] + ch_data->bs_invf_mode[1][i] == 1) {
+            new_bw = 0.6f;
+        } else
+            new_bw = bw_tab[ch_data->bs_invf_mode[0][i]];
+
+        if (new_bw < ch_data->bw_array[i]) {
+            new_bw = 0.75f    * new_bw + 0.25f    * ch_data->bw_array[i];
+        } else
+            new_bw = 0.90625f * new_bw + 0.09375f * ch_data->bw_array[i];
+        ch_data->bw_array[i] = new_bw < 0.015625f ? 0.0f : new_bw;
+    }
+}
+
+/**
+ * Calculation of levels of additional HF signal components (14496-3 sp04 p219)
+ * and Calculation of gain (14496-3 sp04 p219)
+ */
+static void sbr_gain_calc(AACContext *ac, SpectralBandReplication *sbr,
+                          SBRData *ch_data, const int e_a[2])
+{
+    int e, k, m;
+    // max gain limits : -3dB, 0dB, 3dB, inf dB (limiter off)
+    static const float limgain[4] = { 0.70795, 1.0, 1.41254, 10000000000 };
+
+    for (e = 0; e < ch_data->bs_num_env; e++) {
+        int delta = !((e == e_a[1]) || (e == e_a[0]));
+        for (k = 0; k < sbr->n_lim; k++) {
+            float gain_boost, gain_max;
+            float sum[2] = { 0.0f, 0.0f };
+            for (m = sbr->f_tablelim[k] - sbr->kx[1]; m < sbr->f_tablelim[k + 1] - sbr->kx[1]; m++) {
+                const float temp = sbr->e_origmapped[e][m] / (1.0f + sbr->q_mapped[e][m]);
+                sbr->q_m[e][m] = sqrtf(temp * sbr->q_mapped[e][m]);
+                sbr->s_m[e][m] = sqrtf(temp * ch_data->s_indexmapped[e + 1][m]);
+                if (!sbr->s_mapped[e][m]) {
+                    sbr->gain[e][m] = sqrtf(sbr->e_origmapped[e][m] /
+                                            ((1.0f + sbr->e_curr[e][m]) *
+                                             (1.0f + sbr->q_mapped[e][m] * delta)));
+                } else {
+                    sbr->gain[e][m] = sqrtf(sbr->e_origmapped[e][m] * sbr->q_mapped[e][m] /
+                                            ((1.0f + sbr->e_curr[e][m]) *
+                                             (1.0f + sbr->q_mapped[e][m])));
+                }
+            }
+            for (m = sbr->f_tablelim[k] - sbr->kx[1]; m < sbr->f_tablelim[k + 1] - sbr->kx[1]; m++) {
+                sum[0] += sbr->e_origmapped[e][m];
+                sum[1] += sbr->e_curr[e][m];
+            }
+            gain_max = limgain[sbr->bs_limiter_gains] * sqrtf((FLT_EPSILON + sum[0]) / (FLT_EPSILON + sum[1]));
+            gain_max = FFMIN(100000.f, gain_max);
+            for (m = sbr->f_tablelim[k] - sbr->kx[1]; m < sbr->f_tablelim[k + 1] - sbr->kx[1]; m++) {
+                float q_m_max   = sbr->q_m[e][m] * gain_max / sbr->gain[e][m];
+                sbr->q_m[e][m]  = FFMIN(sbr->q_m[e][m], q_m_max);
+                sbr->gain[e][m] = FFMIN(sbr->gain[e][m], gain_max);
+            }
+            sum[0] = sum[1] = 0.0f;
+            for (m = sbr->f_tablelim[k] - sbr->kx[1]; m < sbr->f_tablelim[k + 1] - sbr->kx[1]; m++) {
+                sum[0] += sbr->e_origmapped[e][m];
+                sum[1] += sbr->e_curr[e][m] * sbr->gain[e][m] * sbr->gain[e][m]
+                          + sbr->s_m[e][m] * sbr->s_m[e][m]
+                          + (delta && !sbr->s_m[e][m]) * sbr->q_m[e][m] * sbr->q_m[e][m];
+            }
+            gain_boost = sqrtf((FLT_EPSILON + sum[0]) / (FLT_EPSILON + sum[1]));
+            gain_boost = FFMIN(1.584893192f, gain_boost);
+            for (m = sbr->f_tablelim[k] - sbr->kx[1]; m < sbr->f_tablelim[k + 1] - sbr->kx[1]; m++) {
+                sbr->gain[e][m] *= gain_boost;
+                sbr->q_m[e][m]  *= gain_boost;
+                sbr->s_m[e][m]  *= gain_boost;
+            }
+        }
+    }
+}
+
+/// Assembling HF Signals (14496-3 sp04 p220)
+static void sbr_hf_assemble(float Y1[38][64][2],
+                            const float X_high[64][40][2],
+                            SpectralBandReplication *sbr, SBRData *ch_data,
+                            const int e_a[2])
+{
+    int e, i, j, m;
+    const int h_SL = 4 * !sbr->bs_smoothing_mode;
+    const int kx = sbr->kx[1];
+    const int m_max = sbr->m[1];
+    static const float h_smooth[5] = {
+        0.33333333333333,
+        0.30150283239582,
+        0.21816949906249,
+        0.11516383427084,
+        0.03183050093751,
+    };
+    float (*g_temp)[48] = ch_data->g_temp, (*q_temp)[48] = ch_data->q_temp;
+    int indexnoise = ch_data->f_indexnoise;
+    int indexsine  = ch_data->f_indexsine;
+
+    if (sbr->reset) {
+        for (i = 0; i < h_SL; i++) {
+            memcpy(g_temp[i + 2*ch_data->t_env[0]], sbr->gain[0], m_max * sizeof(sbr->gain[0][0]));
+            memcpy(q_temp[i + 2*ch_data->t_env[0]], sbr->q_m[0],  m_max * sizeof(sbr->q_m[0][0]));
+        }
+    } else if (h_SL) {
+        for (i = 0; i < 4; i++) {
+            memcpy(g_temp[i + 2 * ch_data->t_env[0]],
+                   g_temp[i + 2 * ch_data->t_env_num_env_old],
+                   sizeof(g_temp[0]));
+            memcpy(q_temp[i + 2 * ch_data->t_env[0]],
+                   q_temp[i + 2 * ch_data->t_env_num_env_old],
+                   sizeof(q_temp[0]));
+        }
+    }
+
+    for (e = 0; e < ch_data->bs_num_env; e++) {
+        for (i = 2 * ch_data->t_env[e]; i < 2 * ch_data->t_env[e + 1]; i++) {
+            memcpy(g_temp[h_SL + i], sbr->gain[e], m_max * sizeof(sbr->gain[0][0]));
+            memcpy(q_temp[h_SL + i], sbr->q_m[e],  m_max * sizeof(sbr->q_m[0][0]));
+        }
+    }
+
+    for (e = 0; e < ch_data->bs_num_env; e++) {
+        for (i = 2 * ch_data->t_env[e]; i < 2 * ch_data->t_env[e + 1]; i++) {
+            LOCAL_ALIGNED_16(float, g_filt_tab, [48]);
+            LOCAL_ALIGNED_16(float, q_filt_tab, [48]);
+            float *g_filt, *q_filt;
+
+            if (h_SL && e != e_a[0] && e != e_a[1]) {
+                g_filt = g_filt_tab;
+                q_filt = q_filt_tab;
+                for (m = 0; m < m_max; m++) {
+                    const int idx1 = i + h_SL;
+                    g_filt[m] = 0.0f;
+                    q_filt[m] = 0.0f;
+                    for (j = 0; j <= h_SL; j++) {
+                        g_filt[m] += g_temp[idx1 - j][m] * h_smooth[j];
+                        q_filt[m] += q_temp[idx1 - j][m] * h_smooth[j];
+                    }
+                }
+            } else {
+                g_filt = g_temp[i + h_SL];
+                q_filt = q_temp[i];
+            }
+
+            sbr->dsp.hf_g_filt(Y1[i] + kx, X_high + kx, g_filt, m_max,
+                               i + ENVELOPE_ADJUSTMENT_OFFSET);
+
+            if (e != e_a[0] && e != e_a[1]) {
+                sbr->dsp.hf_apply_noise[indexsine](Y1[i] + kx, sbr->s_m[e],
+                                                   q_filt, indexnoise,
+                                                   kx, m_max);
+            } else {
+                int idx = indexsine&1;
+                int A = (1-((indexsine+(kx & 1))&2));
+                int B = (A^(-idx)) + idx;
+                float *out = &Y1[i][kx][idx];
+                float *in  = sbr->s_m[e];
+                for (m = 0; m+1 < m_max; m+=2) {
+                    out[2*m  ] += in[m  ] * A;
+                    out[2*m+2] += in[m+1] * B;
+                }
+                if(m_max&1)
+                    out[2*m  ] += in[m  ] * A;
+            }
+            indexnoise = (indexnoise + m_max) & 0x1ff;
+            indexsine = (indexsine + 1) & 3;
+        }
+    }
+    ch_data->f_indexnoise = indexnoise;
+    ch_data->f_indexsine  = indexsine;
+}
+
+#include "aacsbr_template.c"

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacsbr.h

@@ -0,0 +1,96 @@
+/*
+ * AAC Spectral Band Replication function declarations
+ * Copyright (c) 2008-2009 Robert Swain ( rob opendot cl )
+ * Copyright (c) 2010      Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC Spectral Band Replication function declarations
+ * @author Robert Swain ( rob opendot cl )
+ */
+
+#ifndef AVCODEC_AACSBR_H
+#define AVCODEC_AACSBR_H
+
+#include "get_bits.h"
+#include "aac.h"
+#include "sbr.h"
+
+#define ENVELOPE_ADJUSTMENT_OFFSET 2
+#define NOISE_FLOOR_OFFSET FIXR(6.0f)
+
+/**
+ * SBR VLC tables
+ */
+enum {
+    T_HUFFMAN_ENV_1_5DB,
+    F_HUFFMAN_ENV_1_5DB,
+    T_HUFFMAN_ENV_BAL_1_5DB,
+    F_HUFFMAN_ENV_BAL_1_5DB,
+    T_HUFFMAN_ENV_3_0DB,
+    F_HUFFMAN_ENV_3_0DB,
+    T_HUFFMAN_ENV_BAL_3_0DB,
+    F_HUFFMAN_ENV_BAL_3_0DB,
+    T_HUFFMAN_NOISE_3_0DB,
+    T_HUFFMAN_NOISE_BAL_3_0DB,
+};
+
+/**
+ * bs_frame_class - frame class of current SBR frame (14496-3 sp04 p98)
+ */
+enum {
+    FIXFIX,
+    FIXVAR,
+    VARFIX,
+    VARVAR,
+};
+
+enum {
+    EXTENSION_ID_PS = 2,
+};
+
+static const int8_t vlc_sbr_lav[10] =
+    { 60, 60, 24, 24, 31, 31, 12, 12, 31, 12 };
+
+#define SBR_INIT_VLC_STATIC(num, size) \
+    INIT_VLC_STATIC(&vlc_sbr[num], 9, sbr_tmp[num].table_size / sbr_tmp[num].elem_size,     \
+                    sbr_tmp[num].sbr_bits ,                      1,                      1, \
+                    sbr_tmp[num].sbr_codes, sbr_tmp[num].elem_size, sbr_tmp[num].elem_size, \
+                    size)
+
+#define SBR_VLC_ROW(name) \
+    { name ## _codes, name ## _bits, sizeof(name ## _codes), sizeof(name ## _codes[0]) }
+
+/** Initialize SBR. */
+void AAC_RENAME(ff_aac_sbr_init)(void);
+/** Initialize one SBR context. */
+void AAC_RENAME(ff_aac_sbr_ctx_init)(AACContext *ac, SpectralBandReplication *sbr);
+/** Close one SBR context. */
+void AAC_RENAME(ff_aac_sbr_ctx_close)(SpectralBandReplication *sbr);
+/** Decode one SBR element. */
+int AAC_RENAME(ff_decode_sbr_extension)(AACContext *ac, SpectralBandReplication *sbr,
+                            GetBitContext *gb, int crc, int cnt, int id_aac);
+/** Apply one SBR element to one AAC element. */
+void AAC_RENAME(ff_sbr_apply)(AACContext *ac, SpectralBandReplication *sbr, int id_aac,
+                  INTFLOAT* L, INTFLOAT *R);
+
+void ff_aacsbr_func_ptr_init_mips(AACSBRContext *c);
+
+#endif /* AVCODEC_AACSBR_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacsbr_fixed.c

@@ -0,0 +1,597 @@
+/*
+ * Copyright (c) 2013
+ *      MIPS Technologies, Inc., California.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the MIPS Technologies, Inc., nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * AAC Spectral Band Replication decoding functions (fixed-point)
+ * Copyright (c) 2008-2009 Robert Swain ( rob opendot cl )
+ * Copyright (c) 2009-2010 Alex Converse <alex.converse@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC Spectral Band Replication decoding functions (fixed-point)
+ * Note: Rounding-to-nearest used unless otherwise stated
+ * @author Robert Swain ( rob opendot cl )
+ * @author Stanislav Ocovaj ( stanislav.ocovaj imgtec com )
+ */
+#define USE_FIXED 1
+
+#include "aac.h"
+#include "sbr.h"
+#include "aacsbr.h"
+#include "aacsbrdata.h"
+#include "aacsbr_fixed_tablegen.h"
+#include "fft.h"
+#include "aacps.h"
+#include "sbrdsp.h"
+#include "libavutil/internal.h"
+#include "libavutil/libm.h"
+#include "libavutil/avassert.h"
+
+#include <stdint.h>
+#include <float.h>
+#include <math.h>
+
+static VLC vlc_sbr[10];
+static void aacsbr_func_ptr_init(AACSBRContext *c);
+static const int CONST_LN2       = Q31(0.6931471806/256);  // ln(2)/256
+static const int CONST_RECIP_LN2 = Q31(0.7213475204);      // 0.5/ln(2)
+static const int CONST_076923    = Q31(0.76923076923076923077f);
+
+static const int fixed_log_table[10] =
+{
+    Q31(1.0/2), Q31(1.0/3), Q31(1.0/4), Q31(1.0/5), Q31(1.0/6),
+    Q31(1.0/7), Q31(1.0/8), Q31(1.0/9), Q31(1.0/10), Q31(1.0/11)
+};
+
+static int fixed_log(int x)
+{
+    int i, ret, xpow, tmp;
+
+    ret = x;
+    xpow = x;
+    for (i=0; i<10; i+=2){
+        xpow = (int)(((int64_t)xpow * x + 0x40000000) >> 31);
+        tmp = (int)(((int64_t)xpow * fixed_log_table[i] + 0x40000000) >> 31);
+        ret -= tmp;
+
+        xpow = (int)(((int64_t)xpow * x + 0x40000000) >> 31);
+        tmp = (int)(((int64_t)xpow * fixed_log_table[i+1] + 0x40000000) >> 31);
+        ret += tmp;
+    }
+
+    return ret;
+}
+
+static const int fixed_exp_table[7] =
+{
+    Q31(1.0/2), Q31(1.0/6), Q31(1.0/24), Q31(1.0/120),
+    Q31(1.0/720), Q31(1.0/5040), Q31(1.0/40320)
+};
+
+static int fixed_exp(int x)
+{
+    int i, ret, xpow, tmp;
+
+    ret = 0x800000 + x;
+    xpow = x;
+    for (i=0; i<7; i++){
+        xpow = (int)(((int64_t)xpow * x + 0x400000) >> 23);
+        tmp = (int)(((int64_t)xpow * fixed_exp_table[i] + 0x40000000) >> 31);
+        ret += tmp;
+    }
+
+    return ret;
+}
+
+static void make_bands(int16_t* bands, int start, int stop, int num_bands)
+{
+    int k, previous, present;
+    int base, prod, nz = 0;
+
+    base = (stop << 23) / start;
+    while (base < 0x40000000){
+        base <<= 1;
+        nz++;
+    }
+    base = fixed_log(base - 0x80000000);
+    base = (((base + 0x80) >> 8) + (8-nz)*CONST_LN2) / num_bands;
+    base = fixed_exp(base);
+
+    previous = start;
+    prod = start << 23;
+
+    for (k = 0; k < num_bands-1; k++) {
+        prod = (int)(((int64_t)prod * base + 0x400000) >> 23);
+        present = (prod + 0x400000) >> 23;
+        bands[k] = present - previous;
+        previous = present;
+    }
+    bands[num_bands-1] = stop - previous;
+}
+
+/// Dequantization and stereo decoding (14496-3 sp04 p203)
+static void sbr_dequant(SpectralBandReplication *sbr, int id_aac)
+{
+    int k, e;
+    int ch;
+
+    if (id_aac == TYPE_CPE && sbr->bs_coupling) {
+        int alpha      = sbr->data[0].bs_amp_res ?  2 :  1;
+        int pan_offset = sbr->data[0].bs_amp_res ? 12 : 24;
+        for (e = 1; e <= sbr->data[0].bs_num_env; e++) {
+            for (k = 0; k < sbr->n[sbr->data[0].bs_freq_res[e]]; k++) {
+                SoftFloat temp1, temp2, fac;
+
+                temp1.exp = sbr->data[0].env_facs[e][k].mant * alpha + 14;
+                if (temp1.exp & 1)
+                  temp1.mant = 759250125;
+                else
+                  temp1.mant = 0x20000000;
+                temp1.exp = (temp1.exp >> 1) + 1;
+                if (temp1.exp > 66) { // temp1 > 1E20
+                    av_log(NULL, AV_LOG_ERROR, "envelope scalefactor overflow in dequant\n");
+                    temp1 = FLOAT_1;
+                }
+
+                temp2.exp = (pan_offset - sbr->data[1].env_facs[e][k].mant) * alpha;
+                if (temp2.exp & 1)
+                  temp2.mant = 759250125;
+                else
+                  temp2.mant = 0x20000000;
+                temp2.exp = (temp2.exp >> 1) + 1;
+                fac   = av_div_sf(temp1, av_add_sf(FLOAT_1, temp2));
+                sbr->data[0].env_facs[e][k] = fac;
+                sbr->data[1].env_facs[e][k] = av_mul_sf(fac, temp2);
+            }
+        }
+        for (e = 1; e <= sbr->data[0].bs_num_noise; e++) {
+            for (k = 0; k < sbr->n_q; k++) {
+                SoftFloat temp1, temp2, fac;
+
+                temp1.exp = NOISE_FLOOR_OFFSET - \
+                    sbr->data[0].noise_facs[e][k].mant + 2;
+                temp1.mant = 0x20000000;
+                if (temp1.exp > 66) { // temp1 > 1E20
+                    av_log(NULL, AV_LOG_ERROR, "envelope scalefactor overflow in dequant\n");
+                    temp1 = FLOAT_1;
+                }
+                temp2.exp = 12 - sbr->data[1].noise_facs[e][k].mant + 1;
+                temp2.mant = 0x20000000;
+                fac   = av_div_sf(temp1, av_add_sf(FLOAT_1, temp2));
+                sbr->data[0].noise_facs[e][k] = fac;
+                sbr->data[1].noise_facs[e][k] = av_mul_sf(fac, temp2);
+            }
+        }
+    } else { // SCE or one non-coupled CPE
+        for (ch = 0; ch < (id_aac == TYPE_CPE) + 1; ch++) {
+            int alpha = sbr->data[ch].bs_amp_res ? 2 : 1;
+            for (e = 1; e <= sbr->data[ch].bs_num_env; e++)
+                for (k = 0; k < sbr->n[sbr->data[ch].bs_freq_res[e]]; k++){
+                    SoftFloat temp1;
+
+                    temp1.exp = alpha * sbr->data[ch].env_facs[e][k].mant + 12;
+                    if (temp1.exp & 1)
+                        temp1.mant = 759250125;
+                    else
+                        temp1.mant = 0x20000000;
+                    temp1.exp = (temp1.exp >> 1) + 1;
+                    if (temp1.exp > 66) { // temp1 > 1E20
+                        av_log(NULL, AV_LOG_ERROR, "envelope scalefactor overflow in dequant\n");
+                        temp1 = FLOAT_1;
+                    }
+                    sbr->data[ch].env_facs[e][k] = temp1;
+                }
+            for (e = 1; e <= sbr->data[ch].bs_num_noise; e++)
+                for (k = 0; k < sbr->n_q; k++){
+                    sbr->data[ch].noise_facs[e][k].exp = NOISE_FLOOR_OFFSET - \
+                        sbr->data[ch].noise_facs[e][k].mant + 1;
+                    sbr->data[ch].noise_facs[e][k].mant = 0x20000000;
+                }
+        }
+    }
+}
+
+/** High Frequency Generation (14496-3 sp04 p214+) and Inverse Filtering
+ * (14496-3 sp04 p214)
+ * Warning: This routine does not seem numerically stable.
+ */
+static void sbr_hf_inverse_filter(SBRDSPContext *dsp,
+                                  int (*alpha0)[2], int (*alpha1)[2],
+                                  const int X_low[32][40][2], int k0)
+{
+    int k;
+    int shift, round;
+
+    for (k = 0; k < k0; k++) {
+        SoftFloat phi[3][2][2];
+        SoftFloat a00, a01, a10, a11;
+        SoftFloat dk;
+
+        dsp->autocorrelate(X_low[k], phi);
+
+        dk = av_sub_sf(av_mul_sf(phi[2][1][0], phi[1][0][0]),
+             av_mul_sf(av_add_sf(av_mul_sf(phi[1][1][0], phi[1][1][0]),
+             av_mul_sf(phi[1][1][1], phi[1][1][1])), FLOAT_0999999));
+
+        if (!dk.mant) {
+            a10 = FLOAT_0;
+            a11 = FLOAT_0;
+        } else {
+            SoftFloat temp_real, temp_im;
+            temp_real = av_sub_sf(av_sub_sf(av_mul_sf(phi[0][0][0], phi[1][1][0]),
+                                            av_mul_sf(phi[0][0][1], phi[1][1][1])),
+                                  av_mul_sf(phi[0][1][0], phi[1][0][0]));
+            temp_im   = av_sub_sf(av_add_sf(av_mul_sf(phi[0][0][0], phi[1][1][1]),
+                                            av_mul_sf(phi[0][0][1], phi[1][1][0])),
+                                  av_mul_sf(phi[0][1][1], phi[1][0][0]));
+
+            a10 = av_div_sf(temp_real, dk);
+            a11 = av_div_sf(temp_im,   dk);
+        }
+
+        if (!phi[1][0][0].mant) {
+            a00 = FLOAT_0;
+            a01 = FLOAT_0;
+        } else {
+            SoftFloat temp_real, temp_im;
+            temp_real = av_add_sf(phi[0][0][0],
+                                  av_add_sf(av_mul_sf(a10, phi[1][1][0]),
+                                            av_mul_sf(a11, phi[1][1][1])));
+            temp_im   = av_add_sf(phi[0][0][1],
+                                  av_sub_sf(av_mul_sf(a11, phi[1][1][0]),
+                                            av_mul_sf(a10, phi[1][1][1])));
+
+            temp_real.mant = -temp_real.mant;
+            temp_im.mant   = -temp_im.mant;
+            a00 = av_div_sf(temp_real, phi[1][0][0]);
+            a01 = av_div_sf(temp_im,   phi[1][0][0]);
+        }
+
+        shift = a00.exp;
+        if (shift >= 3)
+            alpha0[k][0] = 0x7fffffff;
+        else {
+            a00.mant <<= 1;
+            shift = 2-shift;
+            if (shift == 0)
+                alpha0[k][0] = a00.mant;
+            else {
+                round = 1 << (shift-1);
+                alpha0[k][0] = (a00.mant + round) >> shift;
+            }
+        }
+
+        shift = a01.exp;
+        if (shift >= 3)
+            alpha0[k][1] = 0x7fffffff;
+        else {
+            a01.mant <<= 1;
+            shift = 2-shift;
+            if (shift == 0)
+                alpha0[k][1] = a01.mant;
+            else {
+                round = 1 << (shift-1);
+                alpha0[k][1] = (a01.mant + round) >> shift;
+            }
+        }
+        shift = a10.exp;
+        if (shift >= 3)
+            alpha1[k][0] = 0x7fffffff;
+        else {
+            a10.mant <<= 1;
+            shift = 2-shift;
+            if (shift == 0)
+                alpha1[k][0] = a10.mant;
+            else {
+                round = 1 << (shift-1);
+                alpha1[k][0] = (a10.mant + round) >> shift;
+            }
+        }
+
+        shift = a11.exp;
+        if (shift >= 3)
+            alpha1[k][1] = 0x7fffffff;
+        else {
+            a11.mant <<= 1;
+            shift = 2-shift;
+            if (shift == 0)
+                alpha1[k][1] = a11.mant;
+            else {
+                round = 1 << (shift-1);
+                alpha1[k][1] = (a11.mant + round) >> shift;
+            }
+        }
+
+        shift = (int)(((int64_t)(alpha1[k][0]>>1) * (alpha1[k][0]>>1) + \
+                       (int64_t)(alpha1[k][1]>>1) * (alpha1[k][1]>>1) + \
+                       0x40000000) >> 31);
+        if (shift >= 0x20000000){
+            alpha1[k][0] = 0;
+            alpha1[k][1] = 0;
+            alpha0[k][0] = 0;
+            alpha0[k][1] = 0;
+        }
+
+        shift = (int)(((int64_t)(alpha0[k][0]>>1) * (alpha0[k][0]>>1) + \
+                       (int64_t)(alpha0[k][1]>>1) * (alpha0[k][1]>>1) + \
+                       0x40000000) >> 31);
+        if (shift >= 0x20000000){
+            alpha1[k][0] = 0;
+            alpha1[k][1] = 0;
+            alpha0[k][0] = 0;
+            alpha0[k][1] = 0;
+        }
+    }
+}
+
+/// Chirp Factors (14496-3 sp04 p214)
+static void sbr_chirp(SpectralBandReplication *sbr, SBRData *ch_data)
+{
+    int i;
+    int new_bw;
+    static const int bw_tab[] = { 0, 1610612736, 1932735283, 2104533975 };
+    int64_t accu;
+
+    for (i = 0; i < sbr->n_q; i++) {
+        if (ch_data->bs_invf_mode[0][i] + ch_data->bs_invf_mode[1][i] == 1)
+            new_bw = 1288490189;
+        else
+            new_bw = bw_tab[ch_data->bs_invf_mode[0][i]];
+
+        if (new_bw < ch_data->bw_array[i]){
+            accu  = (int64_t)new_bw * 1610612736;
+            accu += (int64_t)ch_data->bw_array[i] * 0x20000000;
+            new_bw = (int)((accu + 0x40000000) >> 31);
+        } else {
+            accu  = (int64_t)new_bw * 1946157056;
+            accu += (int64_t)ch_data->bw_array[i] * 201326592;
+            new_bw = (int)((accu + 0x40000000) >> 31);
+        }
+        ch_data->bw_array[i] = new_bw < 0x2000000 ? 0 : new_bw;
+    }
+}
+
+/**
+ * Calculation of levels of additional HF signal components (14496-3 sp04 p219)
+ * and Calculation of gain (14496-3 sp04 p219)
+ */
+static void sbr_gain_calc(AACContext *ac, SpectralBandReplication *sbr,
+                          SBRData *ch_data, const int e_a[2])
+{
+    int e, k, m;
+    // max gain limits : -3dB, 0dB, 3dB, inf dB (limiter off)
+    static const SoftFloat limgain[4] = { { 760155524,  0 }, { 0x20000000,  1 },
+                                            { 758351638,  1 }, { 625000000, 34 } };
+
+    for (e = 0; e < ch_data->bs_num_env; e++) {
+        int delta = !((e == e_a[1]) || (e == e_a[0]));
+        for (k = 0; k < sbr->n_lim; k++) {
+            SoftFloat gain_boost, gain_max;
+            SoftFloat sum[2];
+            sum[0] = sum[1] = FLOAT_0;
+            for (m = sbr->f_tablelim[k] - sbr->kx[1]; m < sbr->f_tablelim[k + 1] - sbr->kx[1]; m++) {
+                const SoftFloat temp = av_div_sf(sbr->e_origmapped[e][m],
+                                            av_add_sf(FLOAT_1, sbr->q_mapped[e][m]));
+                sbr->q_m[e][m] = av_sqrt_sf(av_mul_sf(temp, sbr->q_mapped[e][m]));
+                sbr->s_m[e][m] = av_sqrt_sf(av_mul_sf(temp, av_int2sf(ch_data->s_indexmapped[e + 1][m], 0)));
+                if (!sbr->s_mapped[e][m]) {
+                    if (delta) {
+                      sbr->gain[e][m] = av_sqrt_sf(av_div_sf(sbr->e_origmapped[e][m],
+                                            av_mul_sf(av_add_sf(FLOAT_1, sbr->e_curr[e][m]),
+                                            av_add_sf(FLOAT_1, sbr->q_mapped[e][m]))));
+                    } else {
+                      sbr->gain[e][m] = av_sqrt_sf(av_div_sf(sbr->e_origmapped[e][m],
+                                            av_add_sf(FLOAT_1, sbr->e_curr[e][m])));
+                    }
+                } else {
+                    sbr->gain[e][m] = av_sqrt_sf(
+                                        av_div_sf(
+                                            av_mul_sf(sbr->e_origmapped[e][m], sbr->q_mapped[e][m]),
+                                            av_mul_sf(
+                                                av_add_sf(FLOAT_1, sbr->e_curr[e][m]),
+                                                av_add_sf(FLOAT_1, sbr->q_mapped[e][m]))));
+                }
+            }
+            for (m = sbr->f_tablelim[k] - sbr->kx[1]; m < sbr->f_tablelim[k + 1] - sbr->kx[1]; m++) {
+                sum[0] = av_add_sf(sum[0], sbr->e_origmapped[e][m]);
+                sum[1] = av_add_sf(sum[1], sbr->e_curr[e][m]);
+            }
+            gain_max = av_mul_sf(limgain[sbr->bs_limiter_gains],
+                            av_sqrt_sf(
+                                av_div_sf(
+                                    av_add_sf(FLOAT_EPSILON, sum[0]),
+                                    av_add_sf(FLOAT_EPSILON, sum[1]))));
+            if (av_gt_sf(gain_max, FLOAT_100000))
+              gain_max = FLOAT_100000;
+            for (m = sbr->f_tablelim[k] - sbr->kx[1]; m < sbr->f_tablelim[k + 1] - sbr->kx[1]; m++) {
+                SoftFloat q_m_max = av_div_sf(
+                                        av_mul_sf(sbr->q_m[e][m], gain_max),
+                                        sbr->gain[e][m]);
+                if (av_gt_sf(sbr->q_m[e][m], q_m_max))
+                  sbr->q_m[e][m] = q_m_max;
+                if (av_gt_sf(sbr->gain[e][m], gain_max))
+                  sbr->gain[e][m] = gain_max;
+            }
+            sum[0] = sum[1] = FLOAT_0;
+            for (m = sbr->f_tablelim[k] - sbr->kx[1]; m < sbr->f_tablelim[k + 1] - sbr->kx[1]; m++) {
+                sum[0] = av_add_sf(sum[0], sbr->e_origmapped[e][m]);
+                sum[1] = av_add_sf(sum[1],
+                            av_mul_sf(
+                                av_mul_sf(sbr->e_curr[e][m],
+                                          sbr->gain[e][m]),
+                                sbr->gain[e][m]));
+                sum[1] = av_add_sf(sum[1],
+                            av_mul_sf(sbr->s_m[e][m], sbr->s_m[e][m]));
+                if (delta && !sbr->s_m[e][m].mant)
+                  sum[1] = av_add_sf(sum[1],
+                                av_mul_sf(sbr->q_m[e][m], sbr->q_m[e][m]));
+            }
+            gain_boost = av_sqrt_sf(
+                            av_div_sf(
+                                av_add_sf(FLOAT_EPSILON, sum[0]),
+                                av_add_sf(FLOAT_EPSILON, sum[1])));
+            if (av_gt_sf(gain_boost, FLOAT_1584893192))
+              gain_boost = FLOAT_1584893192;
+
+            for (m = sbr->f_tablelim[k] - sbr->kx[1]; m < sbr->f_tablelim[k + 1] - sbr->kx[1]; m++) {
+                sbr->gain[e][m] = av_mul_sf(sbr->gain[e][m], gain_boost);
+                sbr->q_m[e][m]  = av_mul_sf(sbr->q_m[e][m], gain_boost);
+                sbr->s_m[e][m]  = av_mul_sf(sbr->s_m[e][m], gain_boost);
+            }
+        }
+    }
+}
+
+/// Assembling HF Signals (14496-3 sp04 p220)
+static void sbr_hf_assemble(int Y1[38][64][2],
+                            const int X_high[64][40][2],
+                            SpectralBandReplication *sbr, SBRData *ch_data,
+                            const int e_a[2])
+{
+    int e, i, j, m;
+    const int h_SL = 4 * !sbr->bs_smoothing_mode;
+    const int kx = sbr->kx[1];
+    const int m_max = sbr->m[1];
+    static const SoftFloat h_smooth[5] = {
+      { 715827883, -1 },
+      { 647472402, -1 },
+      { 937030863, -2 },
+      { 989249804, -3 },
+      { 546843842, -4 },
+    };
+    SoftFloat (*g_temp)[48] = ch_data->g_temp, (*q_temp)[48] = ch_data->q_temp;
+    int indexnoise = ch_data->f_indexnoise;
+    int indexsine  = ch_data->f_indexsine;
+
+    if (sbr->reset) {
+        for (i = 0; i < h_SL; i++) {
+            memcpy(g_temp[i + 2*ch_data->t_env[0]], sbr->gain[0], m_max * sizeof(sbr->gain[0][0]));
+            memcpy(q_temp[i + 2*ch_data->t_env[0]], sbr->q_m[0],  m_max * sizeof(sbr->q_m[0][0]));
+        }
+    } else if (h_SL) {
+        for (i = 0; i < 4; i++) {
+            memcpy(g_temp[i + 2 * ch_data->t_env[0]],
+                   g_temp[i + 2 * ch_data->t_env_num_env_old],
+                   sizeof(g_temp[0]));
+            memcpy(q_temp[i + 2 * ch_data->t_env[0]],
+                   q_temp[i + 2 * ch_data->t_env_num_env_old],
+                   sizeof(q_temp[0]));
+        }
+    }
+
+    for (e = 0; e < ch_data->bs_num_env; e++) {
+        for (i = 2 * ch_data->t_env[e]; i < 2 * ch_data->t_env[e + 1]; i++) {
+            memcpy(g_temp[h_SL + i], sbr->gain[e], m_max * sizeof(sbr->gain[0][0]));
+            memcpy(q_temp[h_SL + i], sbr->q_m[e],  m_max * sizeof(sbr->q_m[0][0]));
+        }
+    }
+
+    for (e = 0; e < ch_data->bs_num_env; e++) {
+        for (i = 2 * ch_data->t_env[e]; i < 2 * ch_data->t_env[e + 1]; i++) {
+            SoftFloat g_filt_tab[48];
+            SoftFloat q_filt_tab[48];
+            SoftFloat *g_filt, *q_filt;
+
+            if (h_SL && e != e_a[0] && e != e_a[1]) {
+                g_filt = g_filt_tab;
+                q_filt = q_filt_tab;
+                for (m = 0; m < m_max; m++) {
+                    const int idx1 = i + h_SL;
+                    g_filt[m].mant = g_filt[m].exp = 0;
+                    q_filt[m].mant = q_filt[m].exp = 0;
+                    for (j = 0; j <= h_SL; j++) {
+                        g_filt[m] = av_add_sf(g_filt[m],
+                                        av_mul_sf(g_temp[idx1 - j][m],
+                                            h_smooth[j]));
+                        q_filt[m] = av_add_sf(q_filt[m],
+                                        av_mul_sf(q_temp[idx1 - j][m],
+                                            h_smooth[j]));
+                    }
+                }
+            } else {
+                g_filt = g_temp[i + h_SL];
+                q_filt = q_temp[i];
+            }
+
+            sbr->dsp.hf_g_filt(Y1[i] + kx, X_high + kx, g_filt, m_max,
+                               i + ENVELOPE_ADJUSTMENT_OFFSET);
+
+            if (e != e_a[0] && e != e_a[1]) {
+                sbr->dsp.hf_apply_noise[indexsine](Y1[i] + kx, sbr->s_m[e],
+                                                   q_filt, indexnoise,
+                                                   kx, m_max);
+            } else {
+                int idx = indexsine&1;
+                int A = (1-((indexsine+(kx & 1))&2));
+                int B = (A^(-idx)) + idx;
+                int *out = &Y1[i][kx][idx];
+                int shift, round;
+
+                SoftFloat *in  = sbr->s_m[e];
+                for (m = 0; m+1 < m_max; m+=2) {
+                  shift = 22 - in[m  ].exp;
+                  round = 1 << (shift-1);
+                  out[2*m  ] += (in[m  ].mant * A + round) >> shift;
+
+                  shift = 22 - in[m+1].exp;
+                  round = 1 << (shift-1);
+                  out[2*m+2] += (in[m+1].mant * B + round) >> shift;
+                }
+                if(m_max&1)
+                {
+                  shift = 22 - in[m  ].exp;
+                  round = 1 << (shift-1);
+
+                  out[2*m  ] += (in[m  ].mant * A + round) >> shift;
+                }
+            }
+            indexnoise = (indexnoise + m_max) & 0x1ff;
+            indexsine = (indexsine + 1) & 3;
+        }
+    }
+    ch_data->f_indexnoise = indexnoise;
+    ch_data->f_indexsine  = indexsine;
+}
+
+#include "aacsbr_template.c"

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacsbr_fixed_tablegen.c

@@ -0,0 +1,42 @@
+/*
+ * Header file for hardcoded AAC SBR windows
+ *
+ * Copyright (c) 2014 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdlib.h>
+#include "libavutil/internal.h"
+#include "libavutil/common.h"
+#undef CONFIG_HARDCODED_TABLES
+#define CONFIG_HARDCODED_TABLES 0
+#define USE_FIXED 1
+#include "aacsbr_fixed_tablegen.h"
+#include "tableprint.h"
+
+int main(void)
+{
+    aacsbr_tableinit();
+
+    write_fileheader();
+
+    WRITE_ARRAY_ALIGNED("static const", 32, int32_t, sbr_qmf_window_ds);
+    WRITE_ARRAY_ALIGNED("static const", 32, int32_t, sbr_qmf_window_us);
+
+    return 0;
+}

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacsbr_fixed_tablegen.h

@@ -0,0 +1,32 @@
+/*
+ * Header file for hardcoded AAC SBR windows
+ *
+ * Copyright (c) 2014 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AACSBR_FIXED_TABLEGEN_H
+#define AVCODEC_AACSBR_FIXED_TABLEGEN_H
+
+#include "aacsbr_tablegen_common.h"
+
+#if CONFIG_HARDCODED_TABLES
+#include "libavcodec/aacsbr_fixed_tables.h"
+#endif /* CONFIG_HARDCODED_TABLES */
+
+#endif /* AVCODEC_AACSBR_FIXED_TABLEGEN_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacsbr_tablegen.c

@@ -0,0 +1,42 @@
+/*
+ * Header file for hardcoded AAC SBR windows
+ *
+ * Copyright (c) 2014 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdlib.h>
+#include "libavutil/internal.h"
+#include "libavutil/common.h"
+#undef CONFIG_HARDCODED_TABLES
+#define CONFIG_HARDCODED_TABLES 0
+#define USE_FIXED 0
+#include "aacsbr_tablegen.h"
+#include "tableprint.h"
+
+int main(void)
+{
+    aacsbr_tableinit();
+
+    write_fileheader();
+
+    WRITE_ARRAY_ALIGNED("static const", 32, float, sbr_qmf_window_ds);
+    WRITE_ARRAY_ALIGNED("static const", 32, float, sbr_qmf_window_us);
+
+    return 0;
+}

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacsbr_tablegen.h

@@ -0,0 +1,32 @@
+/*
+ * Header file for hardcoded AAC SBR windows
+ *
+ * Copyright (c) 2014 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AACSBR_TABLEGEN_H
+#define AVCODEC_AACSBR_TABLEGEN_H
+
+#include "aacsbr_tablegen_common.h"
+
+#if CONFIG_HARDCODED_TABLES
+#include "libavcodec/aacsbr_tables.h"
+#endif /* CONFIG_HARDCODED_TABLES */
+
+#endif /* AVCODEC_AACSBR_TABLEGEN_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacsbr_tablegen_common.h

@@ -0,0 +1,129 @@
+/*
+ * Header file for hardcoded AAC SBR windows
+ *
+ * Copyright (c) 2014 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AACSBR_TABLEGEN_COMMON_H
+#define AVCODEC_AACSBR_TABLEGEN_COMMON_H
+#include "aac.h"
+
+#if CONFIG_HARDCODED_TABLES
+#define aacsbr_tableinit()
+#else
+///< window coefficients for analysis/synthesis QMF banks
+static DECLARE_ALIGNED(32, INTFLOAT, sbr_qmf_window_ds)[320];
+static DECLARE_ALIGNED(32, INTFLOAT, sbr_qmf_window_us)[640] = {
+    Q31( 0.0000000000f), Q31(-0.0005525286f), Q31(-0.0005617692f), Q31(-0.0004947518f),
+    Q31(-0.0004875227f), Q31(-0.0004893791f), Q31(-0.0005040714f), Q31(-0.0005226564f),
+    Q31(-0.0005466565f), Q31(-0.0005677802f), Q31(-0.0005870930f), Q31(-0.0006132747f),
+    Q31(-0.0006312493f), Q31(-0.0006540333f), Q31(-0.0006777690f), Q31(-0.0006941614f),
+    Q31(-0.0007157736f), Q31(-0.0007255043f), Q31(-0.0007440941f), Q31(-0.0007490598f),
+    Q31(-0.0007681371f), Q31(-0.0007724848f), Q31(-0.0007834332f), Q31(-0.0007779869f),
+    Q31(-0.0007803664f), Q31(-0.0007801449f), Q31(-0.0007757977f), Q31(-0.0007630793f),
+    Q31(-0.0007530001f), Q31(-0.0007319357f), Q31(-0.0007215391f), Q31(-0.0006917937f),
+    Q31(-0.0006650415f), Q31(-0.0006341594f), Q31(-0.0005946118f), Q31(-0.0005564576f),
+    Q31(-0.0005145572f), Q31(-0.0004606325f), Q31(-0.0004095121f), Q31(-0.0003501175f),
+    Q31(-0.0002896981f), Q31(-0.0002098337f), Q31(-0.0001446380f), Q31(-0.0000617334f),
+    Q31( 0.0000134949f), Q31( 0.0001094383f), Q31( 0.0002043017f), Q31( 0.0002949531f),
+    Q31( 0.0004026540f), Q31( 0.0005107388f), Q31( 0.0006239376f), Q31( 0.0007458025f),
+    Q31( 0.0008608443f), Q31( 0.0009885988f), Q31( 0.0011250155f), Q31( 0.0012577884f),
+    Q31( 0.0013902494f), Q31( 0.0015443219f), Q31( 0.0016868083f), Q31( 0.0018348265f),
+    Q31( 0.0019841140f), Q31( 0.0021461583f), Q31( 0.0023017254f), Q31( 0.0024625616f),
+    Q31( 0.0026201758f), Q31( 0.0027870464f), Q31( 0.0029469447f), Q31( 0.0031125420f),
+    Q31( 0.0032739613f), Q31( 0.0034418874f), Q31( 0.0036008268f), Q31( 0.0037603922f),
+    Q31( 0.0039207432f), Q31( 0.0040819753f), Q31( 0.0042264269f), Q31( 0.0043730719f),
+    Q31( 0.0045209852f), Q31( 0.0046606460f), Q31( 0.0047932560f), Q31( 0.0049137603f),
+    Q31( 0.0050393022f), Q31( 0.0051407353f), Q31( 0.0052461166f), Q31( 0.0053471681f),
+    Q31( 0.0054196775f), Q31( 0.0054876040f), Q31( 0.0055475714f), Q31( 0.0055938023f),
+    Q31( 0.0056220643f), Q31( 0.0056455196f), Q31( 0.0056389199f), Q31( 0.0056266114f),
+    Q31( 0.0055917128f), Q31( 0.0055404363f), Q31( 0.0054753783f), Q31( 0.0053838975f),
+    Q31( 0.0052715758f), Q31( 0.0051382275f), Q31( 0.0049839687f), Q31( 0.0048109469f),
+    Q31( 0.0046039530f), Q31( 0.0043801861f), Q31( 0.0041251642f), Q31( 0.0038456408f),
+    Q31( 0.0035401246f), Q31( 0.0032091885f), Q31( 0.0028446757f), Q31( 0.0024508540f),
+    Q31( 0.0020274176f), Q31( 0.0015784682f), Q31( 0.0010902329f), Q31( 0.0005832264f),
+    Q31( 0.0000276045f), Q31(-0.0005464280f), Q31(-0.0011568135f), Q31(-0.0018039472f),
+    Q31(-0.0024826723f), Q31(-0.0031933778f), Q31(-0.0039401124f), Q31(-0.0047222596f),
+    Q31(-0.0055337211f), Q31(-0.0063792293f), Q31(-0.0072615816f), Q31(-0.0081798233f),
+    Q31(-0.0091325329f), Q31(-0.0101150215f), Q31(-0.0111315548f), Q31(-0.0121849995f),
+    Q31( 0.0132718220f), Q31( 0.0143904666f), Q31( 0.0155405553f), Q31( 0.0167324712f),
+    Q31( 0.0179433381f), Q31( 0.0191872431f), Q31( 0.0204531793f), Q31( 0.0217467550f),
+    Q31( 0.0230680169f), Q31( 0.0244160992f), Q31( 0.0257875847f), Q31( 0.0271859429f),
+    Q31( 0.0286072173f), Q31( 0.0300502657f), Q31( 0.0315017608f), Q31( 0.0329754081f),
+    Q31( 0.0344620948f), Q31( 0.0359697560f), Q31( 0.0374812850f), Q31( 0.0390053679f),
+    Q31( 0.0405349170f), Q31( 0.0420649094f), Q31( 0.0436097542f), Q31( 0.0451488405f),
+    Q31( 0.0466843027f), Q31( 0.0482165720f), Q31( 0.0497385755f), Q31( 0.0512556155f),
+    Q31( 0.0527630746f), Q31( 0.0542452768f), Q31( 0.0557173648f), Q31( 0.0571616450f),
+    Q31( 0.0585915683f), Q31( 0.0599837480f), Q31( 0.0613455171f), Q31( 0.0626857808f),
+    Q31( 0.0639715898f), Q31( 0.0652247106f), Q31( 0.0664367512f), Q31( 0.0676075985f),
+    Q31( 0.0687043828f), Q31( 0.0697630244f), Q31( 0.0707628710f), Q31( 0.0717002673f),
+    Q31( 0.0725682583f), Q31( 0.0733620255f), Q31( 0.0741003642f), Q31( 0.0747452558f),
+    Q31( 0.0753137336f), Q31( 0.0758008358f), Q31( 0.0761992479f), Q31( 0.0764992170f),
+    Q31( 0.0767093490f), Q31( 0.0768173975f), Q31( 0.0768230011f), Q31( 0.0767204924f),
+    Q31( 0.0765050718f), Q31( 0.0761748321f), Q31( 0.0757305756f), Q31( 0.0751576255f),
+    Q31( 0.0744664394f), Q31( 0.0736406005f), Q31( 0.0726774642f), Q31( 0.0715826364f),
+    Q31( 0.0703533073f), Q31( 0.0689664013f), Q31( 0.0674525021f), Q31( 0.0657690668f),
+    Q31( 0.0639444805f), Q31( 0.0619602779f), Q31( 0.0598166570f), Q31( 0.0575152691f),
+    Q31( 0.0550460034f), Q31( 0.0524093821f), Q31( 0.0495978676f), Q31( 0.0466303305f),
+    Q31( 0.0434768782f), Q31( 0.0401458278f), Q31( 0.0366418116f), Q31( 0.0329583930f),
+    Q31( 0.0290824006f), Q31( 0.0250307561f), Q31( 0.0207997072f), Q31( 0.0163701258f),
+    Q31( 0.0117623832f), Q31( 0.0069636862f), Q31( 0.0019765601f), Q31(-0.0032086896f),
+    Q31(-0.0085711749f), Q31(-0.0141288827f), Q31(-0.0198834129f), Q31(-0.0258227288f),
+    Q31(-0.0319531274f), Q31(-0.0382776572f), Q31(-0.0447806821f), Q31(-0.0514804176f),
+    Q31(-0.0583705326f), Q31(-0.0654409853f), Q31(-0.0726943300f), Q31(-0.0801372934f),
+    Q31(-0.0877547536f), Q31(-0.0955533352f), Q31(-0.1035329531f), Q31(-0.1116826931f),
+    Q31(-0.1200077984f), Q31(-0.1285002850f), Q31(-0.1371551761f), Q31(-0.1459766491f),
+    Q31(-0.1549607071f), Q31(-0.1640958855f), Q31(-0.1733808172f), Q31(-0.1828172548f),
+    Q31(-0.1923966745f), Q31(-0.2021250176f), Q31(-0.2119735853f), Q31(-0.2219652696f),
+    Q31(-0.2320690870f), Q31(-0.2423016884f), Q31(-0.2526480309f), Q31(-0.2631053299f),
+    Q31(-0.2736634040f), Q31(-0.2843214189f), Q31(-0.2950716717f), Q31(-0.3059098575f),
+    Q31(-0.3168278913f), Q31(-0.3278113727f), Q31(-0.3388722693f), Q31(-0.3499914122f),
+    Q31( 0.3611589903f), Q31( 0.3723795546f), Q31( 0.3836350013f), Q31( 0.3949211761f),
+    Q31( 0.4062317676f), Q31( 0.4175696896f), Q31( 0.4289119920f), Q31( 0.4402553754f),
+    Q31( 0.4515996535f), Q31( 0.4629308085f), Q31( 0.4742453214f), Q31( 0.4855253091f),
+    Q31( 0.4967708254f), Q31( 0.5079817500f), Q31( 0.5191234970f), Q31( 0.5302240895f),
+    Q31( 0.5412553448f), Q31( 0.5522051258f), Q31( 0.5630789140f), Q31( 0.5738524131f),
+    Q31( 0.5845403235f), Q31( 0.5951123086f), Q31( 0.6055783538f), Q31( 0.6159109932f),
+    Q31( 0.6261242695f), Q31( 0.6361980107f), Q31( 0.6461269695f), Q31( 0.6559016302f),
+    Q31( 0.6655139880f), Q31( 0.6749663190f), Q31( 0.6842353293f), Q31( 0.6933282376f),
+    Q31( 0.7022388719f), Q31( 0.7109410426f), Q31( 0.7194462634f), Q31( 0.7277448900f),
+    Q31( 0.7358211758f), Q31( 0.7436827863f), Q31( 0.7513137456f), Q31( 0.7587080760f),
+    Q31( 0.7658674865f), Q31( 0.7727780881f), Q31( 0.7794287519f), Q31( 0.7858353120f),
+    Q31( 0.7919735841f), Q31( 0.7978466413f), Q31( 0.8034485751f), Q31( 0.8087695004f),
+    Q31( 0.8138191270f), Q31( 0.8185776004f), Q31( 0.8230419890f), Q31( 0.8272275347f),
+    Q31( 0.8311038457f), Q31( 0.8346937361f), Q31( 0.8379717337f), Q31( 0.8409541392f),
+    Q31( 0.8436238281f), Q31( 0.8459818469f), Q31( 0.8480315777f), Q31( 0.8497805198f),
+    Q31( 0.8511971524f), Q31( 0.8523047035f), Q31( 0.8531020949f), Q31( 0.8535720573f),
+    Q31( 0.8537385600f),
+};
+
+static av_cold void aacsbr_tableinit(void)
+{
+    int n;
+    for (n = 1; n < 320; n++)
+        sbr_qmf_window_us[320 + n] = sbr_qmf_window_us[320 - n];
+    sbr_qmf_window_us[384] = -sbr_qmf_window_us[384];
+    sbr_qmf_window_us[512] = -sbr_qmf_window_us[512];
+
+    for (n = 0; n < 320; n++)
+        sbr_qmf_window_ds[n] = sbr_qmf_window_us[2*n];
+}
+#endif /* CONFIG_HARDCODED_TABLES */
+
+#endif /* AVCODEC_AACSBR_TABLEGEN_COMMON_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aacsbrdata.h

@@ -0,0 +1,535 @@
+/*
+ * AAC Spectral Band Replication decoding data
+ * Copyright (c) 2008-2009 Robert Swain ( rob opendot cl )
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC Spectral Band Replication decoding data
+ * @author Robert Swain ( rob opendot cl )
+ */
+
+#ifndef AVCODEC_AACSBRDATA_H
+#define AVCODEC_AACSBRDATA_H
+
+#include <stdint.h>
+#include "libavutil/mem.h"
+#include "aac_defines.h"
+
+///< Huffman tables for SBR
+
+static const uint8_t t_huffman_env_1_5dB_bits[121] = {
+    18, 18, 18, 18, 18, 18, 19, 19,
+    19, 19, 19, 19, 19, 19, 19, 19,
+    19, 19, 19, 19, 19, 19, 19, 19,
+    19, 19, 19, 19, 19, 19, 19, 19,
+    19, 19, 17, 18, 16, 17, 18, 17,
+    16, 16, 16, 16, 15, 14, 14, 13,
+    13, 12, 11, 10,  9,  8,  7,  6,
+     5,  4,  3,  2,  2,  3,  4,  5,
+     6,  7,  8,  9, 10, 12, 13, 14,
+    14, 15, 16, 17, 16, 19, 19, 19,
+    19, 19, 19, 19, 19, 19, 19, 19,
+    19, 19, 19, 19, 19, 19, 19, 19,
+    19, 19, 19, 19, 19, 19, 19, 19,
+    19, 19, 19, 19, 19, 19, 19, 19,
+    19, 19, 19, 19, 19, 19, 19, 19,
+    19,
+};
+
+static const uint32_t t_huffman_env_1_5dB_codes[121] = {
+    0x3ffd6, 0x3ffd7, 0x3ffd8, 0x3ffd9, 0x3ffda, 0x3ffdb, 0x7ffb8, 0x7ffb9,
+    0x7ffba, 0x7ffbb, 0x7ffbc, 0x7ffbd, 0x7ffbe, 0x7ffbf, 0x7ffc0, 0x7ffc1,
+    0x7ffc2, 0x7ffc3, 0x7ffc4, 0x7ffc5, 0x7ffc6, 0x7ffc7, 0x7ffc8, 0x7ffc9,
+    0x7ffca, 0x7ffcb, 0x7ffcc, 0x7ffcd, 0x7ffce, 0x7ffcf, 0x7ffd0, 0x7ffd1,
+    0x7ffd2, 0x7ffd3, 0x1ffe6, 0x3ffd4, 0x0fff0, 0x1ffe9, 0x3ffd5, 0x1ffe7,
+    0x0fff1, 0x0ffec, 0x0ffed, 0x0ffee, 0x07ff4, 0x03ff9, 0x03ff7, 0x01ffa,
+    0x01ff9, 0x00ffb, 0x007fc, 0x003fc, 0x001fd, 0x000fd, 0x0007d, 0x0003d,
+    0x0001d, 0x0000d, 0x00005, 0x00001, 0x00000, 0x00004, 0x0000c, 0x0001c,
+    0x0003c, 0x0007c, 0x000fc, 0x001fc, 0x003fd, 0x00ffa, 0x01ff8, 0x03ff6,
+    0x03ff8, 0x07ff5, 0x0ffef, 0x1ffe8, 0x0fff2, 0x7ffd4, 0x7ffd5, 0x7ffd6,
+    0x7ffd7, 0x7ffd8, 0x7ffd9, 0x7ffda, 0x7ffdb, 0x7ffdc, 0x7ffdd, 0x7ffde,
+    0x7ffdf, 0x7ffe0, 0x7ffe1, 0x7ffe2, 0x7ffe3, 0x7ffe4, 0x7ffe5, 0x7ffe6,
+    0x7ffe7, 0x7ffe8, 0x7ffe9, 0x7ffea, 0x7ffeb, 0x7ffec, 0x7ffed, 0x7ffee,
+    0x7ffef, 0x7fff0, 0x7fff1, 0x7fff2, 0x7fff3, 0x7fff4, 0x7fff5, 0x7fff6,
+    0x7fff7, 0x7fff8, 0x7fff9, 0x7fffa, 0x7fffb, 0x7fffc, 0x7fffd, 0x7fffe,
+    0x7ffff,
+};
+
+static const uint8_t f_huffman_env_1_5dB_bits[121] = {
+    19, 19, 20, 20, 20, 20, 20, 20,
+    20, 19, 20, 20, 20, 20, 19, 20,
+    19, 19, 20, 18, 20, 20, 20, 19,
+    20, 20, 20, 19, 20, 19, 18, 19,
+    18, 18, 17, 18, 17, 17, 17, 16,
+    16, 16, 15, 15, 14, 13, 13, 12,
+    12, 11, 10,  9,  9,  8,  7,  6,
+     5,  4,  3,  2,  2,  3,  4,  5,
+     6,  8,  8,  9, 10, 11, 11, 11,
+    12, 12, 13, 13, 14, 14, 16, 16,
+    17, 17, 18, 18, 18, 18, 18, 18,
+    18, 20, 19, 20, 20, 20, 20, 20,
+    20, 19, 20, 20, 20, 20, 19, 20,
+    18, 20, 20, 19, 19, 20, 20, 20,
+    20, 20, 20, 20, 20, 20, 20, 20,
+    20,
+};
+
+static const uint32_t f_huffman_env_1_5dB_codes[121] = {
+    0x7ffe7, 0x7ffe8, 0xfffd2, 0xfffd3, 0xfffd4, 0xfffd5, 0xfffd6, 0xfffd7,
+    0xfffd8, 0x7ffda, 0xfffd9, 0xfffda, 0xfffdb, 0xfffdc, 0x7ffdb, 0xfffdd,
+    0x7ffdc, 0x7ffdd, 0xfffde, 0x3ffe4, 0xfffdf, 0xfffe0, 0xfffe1, 0x7ffde,
+    0xfffe2, 0xfffe3, 0xfffe4, 0x7ffdf, 0xfffe5, 0x7ffe0, 0x3ffe8, 0x7ffe1,
+    0x3ffe0, 0x3ffe9, 0x1ffef, 0x3ffe5, 0x1ffec, 0x1ffed, 0x1ffee, 0x0fff4,
+    0x0fff3, 0x0fff0, 0x07ff7, 0x07ff6, 0x03ffa, 0x01ffa, 0x01ff9, 0x00ffa,
+    0x00ff8, 0x007f9, 0x003fb, 0x001fc, 0x001fa, 0x000fb, 0x0007c, 0x0003c,
+    0x0001c, 0x0000c, 0x00005, 0x00001, 0x00000, 0x00004, 0x0000d, 0x0001d,
+    0x0003d, 0x000fa, 0x000fc, 0x001fb, 0x003fa, 0x007f8, 0x007fa, 0x007fb,
+    0x00ff9, 0x00ffb, 0x01ff8, 0x01ffb, 0x03ff8, 0x03ff9, 0x0fff1, 0x0fff2,
+    0x1ffea, 0x1ffeb, 0x3ffe1, 0x3ffe2, 0x3ffea, 0x3ffe3, 0x3ffe6, 0x3ffe7,
+    0x3ffeb, 0xfffe6, 0x7ffe2, 0xfffe7, 0xfffe8, 0xfffe9, 0xfffea, 0xfffeb,
+    0xfffec, 0x7ffe3, 0xfffed, 0xfffee, 0xfffef, 0xffff0, 0x7ffe4, 0xffff1,
+    0x3ffec, 0xffff2, 0xffff3, 0x7ffe5, 0x7ffe6, 0xffff4, 0xffff5, 0xffff6,
+    0xffff7, 0xffff8, 0xffff9, 0xffffa, 0xffffb, 0xffffc, 0xffffd, 0xffffe,
+    0xfffff,
+};
+
+static const uint8_t t_huffman_env_bal_1_5dB_bits[49] = {
+    16, 16, 16, 16, 16, 16, 16, 16,
+    16, 16, 16, 16, 16, 16, 16, 16,
+    16, 16, 12, 11,  9,  7,  5,  3,
+     1,  2,  4,  6,  8, 11, 12, 15,
+    16, 16, 16, 16, 16, 16, 16, 17,
+    17, 17, 17, 17, 17, 17, 17, 17,
+    17,
+};
+
+static const uint32_t t_huffman_env_bal_1_5dB_codes[49] = {
+    0x0ffe4, 0x0ffe5, 0x0ffe6, 0x0ffe7, 0x0ffe8, 0x0ffe9, 0x0ffea, 0x0ffeb,
+    0x0ffec, 0x0ffed, 0x0ffee, 0x0ffef, 0x0fff0, 0x0fff1, 0x0fff2, 0x0fff3,
+    0x0fff4, 0x0ffe2, 0x00ffc, 0x007fc, 0x001fe, 0x0007e, 0x0001e, 0x00006,
+    0x00000, 0x00002, 0x0000e, 0x0003e, 0x000fe, 0x007fd, 0x00ffd, 0x07ff0,
+    0x0ffe3, 0x0fff5, 0x0fff6, 0x0fff7, 0x0fff8, 0x0fff9, 0x0fffa, 0x1fff6,
+    0x1fff7, 0x1fff8, 0x1fff9, 0x1fffa, 0x1fffb, 0x1fffc, 0x1fffd, 0x1fffe,
+    0x1ffff,
+};
+
+static const uint8_t f_huffman_env_bal_1_5dB_bits[49] = {
+    18, 18, 18, 18, 18, 18, 18, 18,
+    18, 18, 18, 18, 18, 18, 18, 16,
+    17, 14, 11, 11,  8,  7,  4,  2,
+     1,  3,  5,  6,  9, 11, 12, 15,
+    16, 18, 18, 18, 18, 18, 18, 18,
+    18, 18, 18, 18, 18, 18, 18, 19,
+    19,
+};
+
+static const uint32_t f_huffman_env_bal_1_5dB_codes[49] = {
+    0x3ffe2, 0x3ffe3, 0x3ffe4, 0x3ffe5, 0x3ffe6, 0x3ffe7, 0x3ffe8, 0x3ffe9,
+    0x3ffea, 0x3ffeb, 0x3ffec, 0x3ffed, 0x3ffee, 0x3ffef, 0x3fff0, 0x0fff7,
+    0x1fff0, 0x03ffc, 0x007fe, 0x007fc, 0x000fe, 0x0007e, 0x0000e, 0x00002,
+    0x00000, 0x00006, 0x0001e, 0x0003e, 0x001fe, 0x007fd, 0x00ffe, 0x07ffa,
+    0x0fff6, 0x3fff1, 0x3fff2, 0x3fff3, 0x3fff4, 0x3fff5, 0x3fff6, 0x3fff7,
+    0x3fff8, 0x3fff9, 0x3fffa, 0x3fffb, 0x3fffc, 0x3fffd, 0x3fffe, 0x7fffe,
+    0x7ffff,
+};
+
+static const uint8_t t_huffman_env_3_0dB_bits[63] = {
+    18, 18, 19, 19, 19, 19, 19, 19,
+    19, 19, 19, 19, 19, 19, 19, 19,
+    19, 17, 16, 16, 16, 14, 14, 14,
+    13, 12, 11,  8,  6,  4,  2,  1,
+     3,  5,  7,  9, 11, 13, 14, 14,
+    15, 16, 17, 18, 19, 19, 19, 19,
+    19, 19, 19, 19, 19, 19, 19, 19,
+    19, 19, 19, 19, 19, 19, 19,
+};
+
+static const uint32_t t_huffman_env_3_0dB_codes[63] = {
+    0x3ffed, 0x3ffee, 0x7ffde, 0x7ffdf, 0x7ffe0, 0x7ffe1, 0x7ffe2, 0x7ffe3,
+    0x7ffe4, 0x7ffe5, 0x7ffe6, 0x7ffe7, 0x7ffe8, 0x7ffe9, 0x7ffea, 0x7ffeb,
+    0x7ffec, 0x1fff4, 0x0fff7, 0x0fff9, 0x0fff8, 0x03ffb, 0x03ffa, 0x03ff8,
+    0x01ffa, 0x00ffc, 0x007fc, 0x000fe, 0x0003e, 0x0000e, 0x00002, 0x00000,
+    0x00006, 0x0001e, 0x0007e, 0x001fe, 0x007fd, 0x01ffb, 0x03ff9, 0x03ffc,
+    0x07ffa, 0x0fff6, 0x1fff5, 0x3ffec, 0x7ffed, 0x7ffee, 0x7ffef, 0x7fff0,
+    0x7fff1, 0x7fff2, 0x7fff3, 0x7fff4, 0x7fff5, 0x7fff6, 0x7fff7, 0x7fff8,
+    0x7fff9, 0x7fffa, 0x7fffb, 0x7fffc, 0x7fffd, 0x7fffe, 0x7ffff,
+};
+
+static const uint8_t f_huffman_env_3_0dB_bits[63] = {
+    20, 20, 20, 20, 20, 20, 20, 18,
+    19, 19, 19, 19, 18, 18, 20, 19,
+    17, 18, 17, 16, 16, 15, 14, 12,
+    11, 10,  9,  8,  6,  4,  2,  1,
+     3,  5,  8,  9, 10, 11, 12, 13,
+    14, 15, 15, 16, 16, 17, 17, 18,
+    18, 18, 20, 19, 19, 19, 20, 19,
+    19, 20, 20, 20, 20, 20, 20,
+};
+
+static const uint32_t f_huffman_env_3_0dB_codes[63] = {
+    0xffff0, 0xffff1, 0xffff2, 0xffff3, 0xffff4, 0xffff5, 0xffff6, 0x3fff3,
+    0x7fff5, 0x7ffee, 0x7ffef, 0x7fff6, 0x3fff4, 0x3fff2, 0xffff7, 0x7fff0,
+    0x1fff5, 0x3fff0, 0x1fff4, 0x0fff7, 0x0fff6, 0x07ff8, 0x03ffb, 0x00ffd,
+    0x007fd, 0x003fd, 0x001fd, 0x000fd, 0x0003e, 0x0000e, 0x00002, 0x00000,
+    0x00006, 0x0001e, 0x000fc, 0x001fc, 0x003fc, 0x007fc, 0x00ffc, 0x01ffc,
+    0x03ffa, 0x07ff9, 0x07ffa, 0x0fff8, 0x0fff9, 0x1fff6, 0x1fff7, 0x3fff5,
+    0x3fff6, 0x3fff1, 0xffff8, 0x7fff1, 0x7fff2, 0x7fff3, 0xffff9, 0x7fff7,
+    0x7fff4, 0xffffa, 0xffffb, 0xffffc, 0xffffd, 0xffffe, 0xfffff,
+};
+
+static const uint8_t t_huffman_env_bal_3_0dB_bits[25] = {
+    13, 13, 13, 13, 13, 13, 13, 12,
+     8,  7,  4,  3,  1,  2,  5,  6,
+     9, 13, 13, 13, 13, 13, 13, 14,
+    14,
+};
+
+static const uint16_t t_huffman_env_bal_3_0dB_codes[25] = {
+    0x1ff2, 0x1ff3, 0x1ff4, 0x1ff5, 0x1ff6, 0x1ff7, 0x1ff8, 0x0ff8,
+    0x00fe, 0x007e, 0x000e, 0x0006, 0x0000, 0x0002, 0x001e, 0x003e,
+    0x01fe, 0x1ff9, 0x1ffa, 0x1ffb, 0x1ffc, 0x1ffd, 0x1ffe, 0x3ffe,
+    0x3fff,
+};
+
+static const uint8_t f_huffman_env_bal_3_0dB_bits[25] = {
+    13, 13, 13, 13, 13, 14, 14, 11,
+     8,  7,  4,  2,  1,  3,  5,  6,
+     9, 12, 13, 14, 14, 14, 14, 14,
+    14,
+};
+
+static const uint16_t f_huffman_env_bal_3_0dB_codes[25] = {
+    0x1ff7, 0x1ff8, 0x1ff9, 0x1ffa, 0x1ffb, 0x3ff8, 0x3ff9, 0x07fc,
+    0x00fe, 0x007e, 0x000e, 0x0002, 0x0000, 0x0006, 0x001e, 0x003e,
+    0x01fe, 0x0ffa, 0x1ff6, 0x3ffa, 0x3ffb, 0x3ffc, 0x3ffd, 0x3ffe,
+    0x3fff,
+};
+
+static const uint8_t t_huffman_noise_3_0dB_bits[63] = {
+    13, 13, 13, 13, 13, 13, 13, 13,
+    13, 13, 13, 13, 13, 13, 13, 13,
+    13, 13, 13, 13, 13, 13, 13, 13,
+    13, 13, 11,  8,  6,  4,  3,  1,
+     2,  5,  8, 10, 13, 13, 13, 13,
+    13, 13, 13, 13, 13, 13, 13, 13,
+    13, 13, 13, 13, 13, 13, 13, 13,
+    13, 13, 13, 13, 13, 14, 14,
+};
+
+static const uint16_t t_huffman_noise_3_0dB_codes[63] = {
+    0x1fce, 0x1fcf, 0x1fd0, 0x1fd1, 0x1fd2, 0x1fd3, 0x1fd4, 0x1fd5,
+    0x1fd6, 0x1fd7, 0x1fd8, 0x1fd9, 0x1fda, 0x1fdb, 0x1fdc, 0x1fdd,
+    0x1fde, 0x1fdf, 0x1fe0, 0x1fe1, 0x1fe2, 0x1fe3, 0x1fe4, 0x1fe5,
+    0x1fe6, 0x1fe7, 0x07f2, 0x00fd, 0x003e, 0x000e, 0x0006, 0x0000,
+    0x0002, 0x001e, 0x00fc, 0x03f8, 0x1fcc, 0x1fe8, 0x1fe9, 0x1fea,
+    0x1feb, 0x1fec, 0x1fcd, 0x1fed, 0x1fee, 0x1fef, 0x1ff0, 0x1ff1,
+    0x1ff2, 0x1ff3, 0x1ff4, 0x1ff5, 0x1ff6, 0x1ff7, 0x1ff8, 0x1ff9,
+    0x1ffa, 0x1ffb, 0x1ffc, 0x1ffd, 0x1ffe, 0x3ffe, 0x3fff,
+};
+
+static const uint8_t t_huffman_noise_bal_3_0dB_bits[25] = {
+    8, 8, 8, 8, 8, 8, 8, 8,
+    8, 8, 5, 2, 1, 3, 6, 8,
+    8, 8, 8, 8, 8, 8, 8, 8,
+    8,
+};
+
+static const uint8_t t_huffman_noise_bal_3_0dB_codes[25] = {
+    0xec, 0xed, 0xee, 0xef, 0xf0, 0xf1, 0xf2, 0xf3,
+    0xf4, 0xf5, 0x1c, 0x02, 0x00, 0x06, 0x3a, 0xf6,
+    0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe,
+    0xff,
+};
+
+static const int8_t sbr_offset[6][16] = {
+    {-8, -7, -6, -5, -4, -3, -2, -1,  0,  1,  2,  3,  4,  5,  6,  7}, //             fs_sbr  = 16000 Hz
+    {-5, -4, -3, -2, -1,  0,  1,  2,  3,  4,  5,  6,  7,  9, 11, 13}, //             fs_sbr  = 22050 Hz
+    {-5, -3, -2, -1,  0,  1,  2,  3,  4,  5,  6,  7,  9, 11, 13, 16}, //             fs_sbr  = 24000 Hz
+    {-6, -4, -2, -1,  0,  1,  2,  3,  4,  5,  6,  7,  9, 11, 13, 16}, //             fs_sbr  = 32000 Hz
+    {-4, -2, -1,  0,  1,  2,  3,  4,  5,  6,  7,  9, 11, 13, 16, 20}, // 44100 Hz <= fs_sbr <= 64000 Hz
+    {-2, -1,  0,  1,  2,  3,  4,  5,  6,  7,  9, 11, 13, 16, 20, 24}, // 64000 Hz <  fs_sbr
+};
+
+/* First eight entries repeated at end to simplify SIMD implementations. */
+const DECLARE_ALIGNED(16, INTFLOAT, AAC_RENAME(ff_sbr_noise_table))[][2] = {
+{Q31(-0.99948153278296f), Q31(-0.59483417516607f)}, {Q31( 0.97113454393991f), Q31(-0.67528515225647f)},
+{Q31( 0.14130051758487f), Q31(-0.95090983575689f)}, {Q31(-0.47005496701697f), Q31(-0.37340549728647f)},
+{Q31( 0.80705063769351f), Q31( 0.29653668284408f)}, {Q31(-0.38981478896926f), Q31( 0.89572605717087f)},
+{Q31(-0.01053049862020f), Q31(-0.66959058036166f)}, {Q31(-0.91266367957293f), Q31(-0.11522938140034f)},
+{Q31( 0.54840422910309f), Q31( 0.75221367176302f)}, {Q31( 0.40009252867955f), Q31(-0.98929400334421f)},
+{Q31(-0.99867974711855f), Q31(-0.88147068645358f)}, {Q31(-0.95531076805040f), Q31( 0.90908757154593f)},
+{Q31(-0.45725933317144f), Q31(-0.56716323646760f)}, {Q31(-0.72929675029275f), Q31(-0.98008272727324f)},
+{Q31( 0.75622801399036f), Q31( 0.20950329995549f)}, {Q31( 0.07069442601050f), Q31(-0.78247898470706f)},
+{Q31( 0.74496252926055f), Q31(-0.91169004445807f)}, {Q31(-0.96440182703856f), Q31(-0.94739918296622f)},
+{Q31( 0.30424629369539f), Q31(-0.49438267012479f)}, {Q31( 0.66565033746925f), Q31( 0.64652935542491f)},
+{Q31( 0.91697008020594f), Q31( 0.17514097332009f)}, {Q31(-0.70774918760427f), Q31( 0.52548653416543f)},
+{Q31(-0.70051415345560f), Q31(-0.45340028808763f)}, {Q31(-0.99496513054797f), Q31(-0.90071908066973f)},
+{Q31( 0.98164490790123f), Q31(-0.77463155528697f)}, {Q31(-0.54671580548181f), Q31(-0.02570928536004f)},
+{Q31(-0.01689629065389f), Q31( 0.00287506445732f)}, {Q31(-0.86110349531986f), Q31( 0.42548583726477f)},
+{Q31(-0.98892980586032f), Q31(-0.87881132267556f)}, {Q31( 0.51756627678691f), Q31( 0.66926784710139f)},
+{Q31(-0.99635026409640f), Q31(-0.58107730574765f)}, {Q31(-0.99969370862163f), Q31( 0.98369989360250f)},
+{Q31( 0.55266258627194f), Q31( 0.59449057465591f)}, {Q31( 0.34581177741673f), Q31( 0.94879421061866f)},
+{Q31( 0.62664209577999f), Q31(-0.74402970906471f)}, {Q31(-0.77149701404973f), Q31(-0.33883658042801f)},
+{Q31(-0.91592244254432f), Q31( 0.03687901376713f)}, {Q31(-0.76285492357887f), Q31(-0.91371867919124f)},
+{Q31( 0.79788337195331f), Q31(-0.93180971199849f)}, {Q31( 0.54473080610200f), Q31(-0.11919206037186f)},
+{Q31(-0.85639281671058f), Q31( 0.42429854760451f)}, {Q31(-0.92882402971423f), Q31( 0.27871809078609f)},
+{Q31(-0.11708371046774f), Q31(-0.99800843444966f)}, {Q31( 0.21356749817493f), Q31(-0.90716295627033f)},
+{Q31(-0.76191692573909f), Q31( 0.99768118356265f)}, {Q31( 0.98111043100884f), Q31(-0.95854459734407f)},
+{Q31(-0.85913269895572f), Q31( 0.95766566168880f)}, {Q31(-0.93307242253692f), Q31( 0.49431757696466f)},
+{Q31( 0.30485754879632f), Q31(-0.70540034357529f)}, {Q31( 0.85289650925190f), Q31( 0.46766131791044f)},
+{Q31( 0.91328082618125f), Q31(-0.99839597361769f)}, {Q31(-0.05890199924154f), Q31( 0.70741827819497f)},
+{Q31( 0.28398686150148f), Q31( 0.34633555702188f)}, {Q31( 0.95258164539612f), Q31(-0.54893416026939f)},
+{Q31(-0.78566324168507f), Q31(-0.75568541079691f)}, {Q31(-0.95789495447877f), Q31(-0.20423194696966f)},
+{Q31( 0.82411158711197f), Q31( 0.96654618432562f)}, {Q31(-0.65185446735885f), Q31(-0.88734990773289f)},
+{Q31(-0.93643603134666f), Q31( 0.99870790442385f)}, {Q31( 0.91427159529618f), Q31(-0.98290505544444f)},
+{Q31(-0.70395684036886f), Q31( 0.58796798221039f)}, {Q31( 0.00563771969365f), Q31( 0.61768196727244f)},
+{Q31( 0.89065051931895f), Q31( 0.52783352697585f)}, {Q31(-0.68683707712762f), Q31( 0.80806944710339f)},
+{Q31( 0.72165342518718f), Q31(-0.69259857349564f)}, {Q31(-0.62928247730667f), Q31( 0.13627037407335f)},
+{Q31( 0.29938434065514f), Q31(-0.46051329682246f)}, {Q31(-0.91781958879280f), Q31(-0.74012716684186f)},
+{Q31( 0.99298717043688f), Q31( 0.40816610075661f)}, {Q31( 0.82368298622748f), Q31(-0.74036047190173f)},
+{Q31(-0.98512833386833f), Q31(-0.99972330709594f)}, {Q31(-0.95915368242257f), Q31(-0.99237800466040f)},
+{Q31(-0.21411126572790f), Q31(-0.93424819052545f)}, {Q31(-0.68821476106884f), Q31(-0.26892306315457f)},
+{Q31( 0.91851997982317f), Q31( 0.09358228901785f)}, {Q31(-0.96062769559127f), Q31( 0.36099095133739f)},
+{Q31( 0.51646184922287f), Q31(-0.71373332873917f)}, {Q31( 0.61130721139669f), Q31( 0.46950141175917f)},
+{Q31( 0.47336129371299f), Q31(-0.27333178296162f)}, {Q31( 0.90998308703519f), Q31( 0.96715662938132f)},
+{Q31( 0.44844799194357f), Q31( 0.99211574628306f)}, {Q31( 0.66614891079092f), Q31( 0.96590176169121f)},
+{Q31( 0.74922239129237f), Q31(-0.89879858826087f)}, {Q31(-0.99571588506485f), Q31( 0.52785521494349f)},
+{Q31( 0.97401082477563f), Q31(-0.16855870075190f)}, {Q31( 0.72683747733879f), Q31(-0.48060774432251f)},
+{Q31( 0.95432193457128f), Q31( 0.68849603408441f)}, {Q31(-0.72962208425191f), Q31(-0.76608443420917f)},
+{Q31(-0.85359479233537f), Q31( 0.88738125901579f)}, {Q31(-0.81412430338535f), Q31(-0.97480768049637f)},
+{Q31(-0.87930772356786f), Q31( 0.74748307690436f)}, {Q31(-0.71573331064977f), Q31(-0.98570608178923f)},
+{Q31( 0.83524300028228f), Q31( 0.83702537075163f)}, {Q31(-0.48086065601423f), Q31(-0.98848504923531f)},
+{Q31( 0.97139128574778f), Q31( 0.80093621198236f)}, {Q31( 0.51992825347895f), Q31( 0.80247631400510f)},
+{Q31(-0.00848591195325f), Q31(-0.76670128000486f)}, {Q31(-0.70294374303036f), Q31( 0.55359910445577f)},
+{Q31(-0.95894428168140f), Q31(-0.43265504344783f)}, {Q31( 0.97079252950321f), Q31( 0.09325857238682f)},
+{Q31(-0.92404293670797f), Q31( 0.85507704027855f)}, {Q31(-0.69506469500450f), Q31( 0.98633412625459f)},
+{Q31( 0.26559203620024f), Q31( 0.73314307966524f)}, {Q31( 0.28038443336943f), Q31( 0.14537913654427f)},
+{Q31(-0.74138124825523f), Q31( 0.99310339807762f)}, {Q31(-0.01752795995444f), Q31(-0.82616635284178f)},
+{Q31(-0.55126773094930f), Q31(-0.98898543862153f)}, {Q31( 0.97960898850996f), Q31(-0.94021446752851f)},
+{Q31(-0.99196309146936f), Q31( 0.67019017358456f)}, {Q31(-0.67684928085260f), Q31( 0.12631491649378f)},
+{Q31( 0.09140039465500f), Q31(-0.20537731453108f)}, {Q31(-0.71658965751996f), Q31(-0.97788200391224f)},
+{Q31( 0.81014640078925f), Q31( 0.53722648362443f)}, {Q31( 0.40616991671205f), Q31(-0.26469008598449f)},
+{Q31(-0.67680188682972f), Q31( 0.94502052337695f)}, {Q31( 0.86849774348749f), Q31(-0.18333598647899f)},
+{Q31(-0.99500381284851f), Q31(-0.02634122068550f)}, {Q31( 0.84329189340667f), Q31( 0.10406957462213f)},
+{Q31(-0.09215968531446f), Q31( 0.69540012101253f)}, {Q31( 0.99956173327206f), Q31(-0.12358542001404f)},
+{Q31(-0.79732779473535f), Q31(-0.91582524736159f)}, {Q31( 0.96349973642406f), Q31( 0.96640458041000f)},
+{Q31(-0.79942778496547f), Q31( 0.64323902822857f)}, {Q31(-0.11566039853896f), Q31( 0.28587846253726f)},
+{Q31(-0.39922954514662f), Q31( 0.94129601616966f)}, {Q31( 0.99089197565987f), Q31(-0.92062625581587f)},
+{Q31( 0.28631285179909f), Q31(-0.91035047143603f)}, {Q31(-0.83302725605608f), Q31(-0.67330410892084f)},
+{Q31( 0.95404443402072f), Q31( 0.49162765398743f)}, {Q31(-0.06449863579434f), Q31( 0.03250560813135f)},
+{Q31(-0.99575054486311f), Q31( 0.42389784469507f)}, {Q31(-0.65501142790847f), Q31( 0.82546114655624f)},
+{Q31(-0.81254441908887f), Q31(-0.51627234660629f)}, {Q31(-0.99646369485481f), Q31( 0.84490533520752f)},
+{Q31( 0.00287840603348f), Q31( 0.64768261158166f)}, {Q31( 0.70176989408455f), Q31(-0.20453028573322f)},
+{Q31( 0.96361882270190f), Q31( 0.40706967140989f)}, {Q31(-0.68883758192426f), Q31( 0.91338958840772f)},
+{Q31(-0.34875585502238f), Q31( 0.71472290693300f)}, {Q31( 0.91980081243087f), Q31( 0.66507455644919f)},
+{Q31(-0.99009048343881f), Q31( 0.85868021604848f)}, {Q31( 0.68865791458395f), Q31( 0.55660316809678f)},
+{Q31(-0.99484402129368f), Q31(-0.20052559254934f)}, {Q31( 0.94214511408023f), Q31(-0.99696425367461f)},
+{Q31(-0.67414626793544f), Q31( 0.49548221180078f)}, {Q31(-0.47339353684664f), Q31(-0.85904328834047f)},
+{Q31( 0.14323651387360f), Q31(-0.94145598222488f)}, {Q31(-0.29268293575672f), Q31( 0.05759224927952f)},
+{Q31( 0.43793861458754f), Q31(-0.78904969892724f)}, {Q31(-0.36345126374441f), Q31( 0.64874435357162f)},
+{Q31(-0.08750604656825f), Q31( 0.97686944362527f)}, {Q31(-0.96495267812511f), Q31(-0.53960305946511f)},
+{Q31( 0.55526940659947f), Q31( 0.78891523734774f)}, {Q31( 0.73538215752630f), Q31( 0.96452072373404f)},
+{Q31(-0.30889773919437f), Q31(-0.80664389776860f)}, {Q31( 0.03574995626194f), Q31(-0.97325616900959f)},
+{Q31( 0.98720684660488f), Q31( 0.48409133691962f)}, {Q31(-0.81689296271203f), Q31(-0.90827703628298f)},
+{Q31( 0.67866860118215f), Q31( 0.81284503870856f)}, {Q31(-0.15808569732583f), Q31( 0.85279555024382f)},
+{Q31( 0.80723395114371f), Q31(-0.24717418514605f)}, {Q31( 0.47788757329038f), Q31(-0.46333147839295f)},
+{Q31( 0.96367554763201f), Q31( 0.38486749303242f)}, {Q31(-0.99143875716818f), Q31(-0.24945277239809f)},
+{Q31( 0.83081876925833f), Q31(-0.94780851414763f)}, {Q31(-0.58753191905341f), Q31( 0.01290772389163f)},
+{Q31( 0.95538108220960f), Q31(-0.85557052096538f)}, {Q31(-0.96490920476211f), Q31(-0.64020970923102f)},
+{Q31(-0.97327101028521f), Q31( 0.12378128133110f)}, {Q31( 0.91400366022124f), Q31( 0.57972471346930f)},
+{Q31(-0.99925837363824f), Q31( 0.71084847864067f)}, {Q31(-0.86875903507313f), Q31(-0.20291699203564f)},
+{Q31(-0.26240034795124f), Q31(-0.68264554369108f)}, {Q31(-0.24664412953388f), Q31(-0.87642273115183f)},
+{Q31( 0.02416275806869f), Q31( 0.27192914288905f)}, {Q31( 0.82068619590515f), Q31(-0.85087787994476f)},
+{Q31( 0.88547373760759f), Q31(-0.89636802901469f)}, {Q31(-0.18173078152226f), Q31(-0.26152145156800f)},
+{Q31( 0.09355476558534f), Q31( 0.54845123045604f)}, {Q31(-0.54668414224090f), Q31( 0.95980774020221f)},
+{Q31( 0.37050990604091f), Q31(-0.59910140383171f)}, {Q31(-0.70373594262891f), Q31( 0.91227665827081f)},
+{Q31(-0.34600785879594f), Q31(-0.99441426144200f)}, {Q31(-0.68774481731008f), Q31(-0.30238837956299f)},
+{Q31(-0.26843291251234f), Q31( 0.83115668004362f)}, {Q31( 0.49072334613242f), Q31(-0.45359708737775f)},
+{Q31( 0.38975993093975f), Q31( 0.95515358099121f)}, {Q31(-0.97757125224150f), Q31( 0.05305894580606f)},
+{Q31(-0.17325552859616f), Q31(-0.92770672250494f)}, {Q31( 0.99948035025744f), Q31( 0.58285545563426f)},
+{Q31(-0.64946246527458f), Q31( 0.68645507104960f)}, {Q31(-0.12016920576437f), Q31(-0.57147322153312f)},
+{Q31(-0.58947456517751f), Q31(-0.34847132454388f)}, {Q31(-0.41815140454465f), Q31( 0.16276422358861f)},
+{Q31( 0.99885650204884f), Q31( 0.11136095490444f)}, {Q31(-0.56649614128386f), Q31(-0.90494866361587f)},
+{Q31( 0.94138021032330f), Q31( 0.35281916733018f)}, {Q31(-0.75725076534641f), Q31( 0.53650549640587f)},
+{Q31( 0.20541973692630f), Q31(-0.94435144369918f)}, {Q31( 0.99980371023351f), Q31( 0.79835913565599f)},
+{Q31( 0.29078277605775f), Q31( 0.35393777921520f)}, {Q31(-0.62858772103030f), Q31( 0.38765693387102f)},
+{Q31( 0.43440904467688f), Q31(-0.98546330463232f)}, {Q31(-0.98298583762390f), Q31( 0.21021524625209f)},
+{Q31( 0.19513029146934f), Q31(-0.94239832251867f)}, {Q31(-0.95476662400101f), Q31( 0.98364554179143f)},
+{Q31( 0.93379635304810f), Q31(-0.70881994583682f)}, {Q31(-0.85235410573336f), Q31(-0.08342347966410f)},
+{Q31(-0.86425093011245f), Q31(-0.45795025029466f)}, {Q31( 0.38879779059045f), Q31( 0.97274429344593f)},
+{Q31( 0.92045124735495f), Q31(-0.62433652524220f)}, {Q31( 0.89162532251878f), Q31( 0.54950955570563f)},
+{Q31(-0.36834336949252f), Q31( 0.96458298020975f)}, {Q31( 0.93891760988045f), Q31(-0.89968353740388f)},
+{Q31( 0.99267657565094f), Q31(-0.03757034316958f)}, {Q31(-0.94063471614176f), Q31( 0.41332338538963f)},
+{Q31( 0.99740224117019f), Q31(-0.16830494996370f)}, {Q31(-0.35899413170555f), Q31(-0.46633226649613f)},
+{Q31( 0.05237237274947f), Q31(-0.25640361602661f)}, {Q31( 0.36703583957424f), Q31(-0.38653265641875f)},
+{Q31( 0.91653180367913f), Q31(-0.30587628726597f)}, {Q31( 0.69000803499316f), Q31( 0.90952171386132f)},
+{Q31(-0.38658751133527f), Q31( 0.99501571208985f)}, {Q31(-0.29250814029851f), Q31( 0.37444994344615f)},
+{Q31(-0.60182204677608f), Q31( 0.86779651036123f)}, {Q31(-0.97418588163217f), Q31( 0.96468523666475f)},
+{Q31( 0.88461574003963f), Q31( 0.57508405276414f)}, {Q31( 0.05198933055162f), Q31( 0.21269661669964f)},
+{Q31(-0.53499621979720f), Q31( 0.97241553731237f)}, {Q31(-0.49429560226497f), Q31( 0.98183865291903f)},
+{Q31(-0.98935142339139f), Q31(-0.40249159006933f)}, {Q31(-0.98081380091130f), Q31(-0.72856895534041f)},
+{Q31(-0.27338148835532f), Q31( 0.99950922447209f)}, {Q31( 0.06310802338302f), Q31(-0.54539587529618f)},
+{Q31(-0.20461677199539f), Q31(-0.14209977628489f)}, {Q31( 0.66223843141647f), Q31( 0.72528579940326f)},
+{Q31(-0.84764345483665f), Q31( 0.02372316801261f)}, {Q31(-0.89039863483811f), Q31( 0.88866581484602f)},
+{Q31( 0.95903308477986f), Q31( 0.76744927173873f)}, {Q31( 0.73504123909879f), Q31(-0.03747203173192f)},
+{Q31(-0.31744434966056f), Q31(-0.36834111883652f)}, {Q31(-0.34110827591623f), Q31( 0.40211222807691f)},
+{Q31( 0.47803883714199f), Q31(-0.39423219786288f)}, {Q31( 0.98299195879514f), Q31( 0.01989791390047f)},
+{Q31(-0.30963073129751f), Q31(-0.18076720599336f)}, {Q31( 0.99992588229018f), Q31(-0.26281872094289f)},
+{Q31(-0.93149731080767f), Q31(-0.98313162570490f)}, {Q31( 0.99923472302773f), Q31(-0.80142993767554f)},
+{Q31(-0.26024169633417f), Q31(-0.75999759855752f)}, {Q31(-0.35712514743563f), Q31( 0.19298963768574f)},
+{Q31(-0.99899084509530f), Q31( 0.74645156992493f)}, {Q31( 0.86557171579452f), Q31( 0.55593866696299f)},
+{Q31( 0.33408042438752f), Q31( 0.86185953874709f)}, {Q31( 0.99010736374716f), Q31( 0.04602397576623f)},
+{Q31(-0.66694269691195f), Q31(-0.91643611810148f)}, {Q31( 0.64016792079480f), Q31( 0.15649530836856f)},
+{Q31( 0.99570534804836f), Q31( 0.45844586038111f)}, {Q31(-0.63431466947340f), Q31( 0.21079116459234f)},
+{Q31(-0.07706847005931f), Q31(-0.89581437101329f)}, {Q31( 0.98590090577724f), Q31( 0.88241721133981f)},
+{Q31( 0.80099335254678f), Q31(-0.36851896710853f)}, {Q31( 0.78368131392666f), Q31( 0.45506999802597f)},
+{Q31( 0.08707806671691f), Q31( 0.80938994918745f)}, {Q31(-0.86811883080712f), Q31( 0.39347308654705f)},
+{Q31(-0.39466529740375f), Q31(-0.66809432114456f)}, {Q31( 0.97875325649683f), Q31(-0.72467840967746f)},
+{Q31(-0.95038560288864f), Q31( 0.89563219587625f)}, {Q31( 0.17005239424212f), Q31( 0.54683053962658f)},
+{Q31(-0.76910792026848f), Q31(-0.96226617549298f)}, {Q31( 0.99743281016846f), Q31( 0.42697157037567f)},
+{Q31( 0.95437383549973f), Q31( 0.97002324109952f)}, {Q31( 0.99578905365569f), Q31(-0.54106826257356f)},
+{Q31( 0.28058259829990f), Q31(-0.85361420634036f)}, {Q31( 0.85256524470573f), Q31(-0.64567607735589f)},
+{Q31(-0.50608540105128f), Q31(-0.65846015480300f)}, {Q31(-0.97210735183243f), Q31(-0.23095213067791f)},
+{Q31( 0.95424048234441f), Q31(-0.99240147091219f)}, {Q31(-0.96926570524023f), Q31( 0.73775654896574f)},
+{Q31( 0.30872163214726f), Q31( 0.41514960556126f)}, {Q31(-0.24523839572639f), Q31( 0.63206633394807f)},
+{Q31(-0.33813265086024f), Q31(-0.38661779441897f)}, {Q31(-0.05826828420146f), Q31(-0.06940774188029f)},
+{Q31(-0.22898461455054f), Q31( 0.97054853316316f)}, {Q31(-0.18509915019881f), Q31( 0.47565762892084f)},
+{Q31(-0.10488238045009f), Q31(-0.87769947402394f)}, {Q31(-0.71886586182037f), Q31( 0.78030982480538f)},
+{Q31( 0.99793873738654f), Q31( 0.90041310491497f)}, {Q31( 0.57563307626120f), Q31(-0.91034337352097f)},
+{Q31( 0.28909646383717f), Q31( 0.96307783970534f)}, {Q31( 0.42188998312520f), Q31( 0.48148651230437f)},
+{Q31( 0.93335049681047f), Q31(-0.43537023883588f)}, {Q31(-0.97087374418267f), Q31( 0.86636445711364f)},
+{Q31( 0.36722871286923f), Q31( 0.65291654172961f)}, {Q31(-0.81093025665696f), Q31( 0.08778370229363f)},
+{Q31(-0.26240603062237f), Q31(-0.92774095379098f)}, {Q31( 0.83996497984604f), Q31( 0.55839849139647f)},
+{Q31(-0.99909615720225f), Q31(-0.96024605713970f)}, {Q31( 0.74649464155061f), Q31( 0.12144893606462f)},
+{Q31(-0.74774595569805f), Q31(-0.26898062008959f)}, {Q31( 0.95781667469567f), Q31(-0.79047927052628f)},
+{Q31( 0.95472308713099f), Q31(-0.08588776019550f)}, {Q31( 0.48708332746299f), Q31( 0.99999041579432f)},
+{Q31( 0.46332038247497f), Q31( 0.10964126185063f)}, {Q31(-0.76497004940162f), Q31( 0.89210929242238f)},
+{Q31( 0.57397389364339f), Q31( 0.35289703373760f)}, {Q31( 0.75374316974495f), Q31( 0.96705214651335f)},
+{Q31(-0.59174397685714f), Q31(-0.89405370422752f)}, {Q31( 0.75087906691890f), Q31(-0.29612672982396f)},
+{Q31(-0.98607857336230f), Q31( 0.25034911730023f)}, {Q31(-0.40761056640505f), Q31(-0.90045573444695f)},
+{Q31( 0.66929266740477f), Q31( 0.98629493401748f)}, {Q31(-0.97463695257310f), Q31(-0.00190223301301f)},
+{Q31( 0.90145509409859f), Q31( 0.99781390365446f)}, {Q31(-0.87259289048043f), Q31( 0.99233587353666f)},
+{Q31(-0.91529461447692f), Q31(-0.15698707534206f)}, {Q31(-0.03305738840705f), Q31(-0.37205262859764f)},
+{Q31( 0.07223051368337f), Q31(-0.88805001733626f)}, {Q31( 0.99498012188353f), Q31( 0.97094358113387f)},
+{Q31(-0.74904939500519f), Q31( 0.99985483641521f)}, {Q31( 0.04585228574211f), Q31( 0.99812337444082f)},
+{Q31(-0.89054954257993f), Q31(-0.31791913188064f)}, {Q31(-0.83782144651251f), Q31( 0.97637632547466f)},
+{Q31( 0.33454804933804f), Q31(-0.86231516800408f)}, {Q31(-0.99707579362824f), Q31( 0.93237990079441f)},
+{Q31(-0.22827527843994f), Q31( 0.18874759397997f)}, {Q31( 0.67248046289143f), Q31(-0.03646211390569f)},
+{Q31(-0.05146538187944f), Q31(-0.92599700120679f)}, {Q31( 0.99947295749905f), Q31( 0.93625229707912f)},
+{Q31( 0.66951124390363f), Q31( 0.98905825623893f)}, {Q31(-0.99602956559179f), Q31(-0.44654715757688f)},
+{Q31( 0.82104905483590f), Q31( 0.99540741724928f)}, {Q31( 0.99186510988782f), Q31( 0.72023001312947f)},
+{Q31(-0.65284592392918f), Q31( 0.52186723253637f)}, {Q31( 0.93885443798188f), Q31(-0.74895312615259f)},
+{Q31( 0.96735248738388f), Q31( 0.90891816978629f)}, {Q31(-0.22225968841114f), Q31( 0.57124029781228f)},
+{Q31(-0.44132783753414f), Q31(-0.92688840659280f)}, {Q31(-0.85694974219574f), Q31( 0.88844532719844f)},
+{Q31( 0.91783042091762f), Q31(-0.46356892383970f)}, {Q31( 0.72556974415690f), Q31(-0.99899555770747f)},
+{Q31(-0.99711581834508f), Q31( 0.58211560180426f)}, {Q31( 0.77638976371966f), Q31( 0.94321834873819f)},
+{Q31( 0.07717324253925f), Q31( 0.58638399856595f)}, {Q31(-0.56049829194163f), Q31( 0.82522301569036f)},
+{Q31( 0.98398893639988f), Q31( 0.39467440420569f)}, {Q31( 0.47546946844938f), Q31( 0.68613044836811f)},
+{Q31( 0.65675089314631f), Q31( 0.18331637134880f)}, {Q31( 0.03273375457980f), Q31(-0.74933109564108f)},
+{Q31(-0.38684144784738f), Q31( 0.51337349030406f)}, {Q31(-0.97346267944545f), Q31(-0.96549364384098f)},
+{Q31(-0.53282156061942f), Q31(-0.91423265091354f)}, {Q31( 0.99817310731176f), Q31( 0.61133572482148f)},
+{Q31(-0.50254500772635f), Q31(-0.88829338134294f)}, {Q31( 0.01995873238855f), Q31( 0.85223515096765f)},
+{Q31( 0.99930381973804f), Q31( 0.94578896296649f)}, {Q31( 0.82907767600783f), Q31(-0.06323442598128f)},
+{Q31(-0.58660709669728f), Q31( 0.96840773806582f)}, {Q31(-0.17573736667267f), Q31(-0.48166920859485f)},
+{Q31( 0.83434292401346f), Q31(-0.13023450646997f)}, {Q31( 0.05946491307025f), Q31( 0.20511047074866f)},
+{Q31( 0.81505484574602f), Q31(-0.94685947861369f)}, {Q31(-0.44976380954860f), Q31( 0.40894572671545f)},
+{Q31(-0.89746474625671f), Q31( 0.99846578838537f)}, {Q31( 0.39677256130792f), Q31(-0.74854668609359f)},
+{Q31(-0.07588948563079f), Q31( 0.74096214084170f)}, {Q31( 0.76343198951445f), Q31( 0.41746629422634f)},
+{Q31(-0.74490104699626f), Q31( 0.94725911744610f)}, {Q31( 0.64880119792759f), Q31( 0.41336660830571f)},
+{Q31( 0.62319537462542f), Q31(-0.93098313552599f)}, {Q31( 0.42215817594807f), Q31(-0.07712787385208f)},
+{Q31( 0.02704554141885f), Q31(-0.05417518053666f)}, {Q31( 0.80001773566818f), Q31( 0.91542195141039f)},
+{Q31(-0.79351832348816f), Q31(-0.36208897989136f)}, {Q31( 0.63872359151636f), Q31( 0.08128252493444f)},
+{Q31( 0.52890520960295f), Q31( 0.60048872455592f)}, {Q31( 0.74238552914587f), Q31( 0.04491915291044f)},
+{Q31( 0.99096131449250f), Q31(-0.19451182854402f)}, {Q31(-0.80412329643109f), Q31(-0.88513818199457f)},
+{Q31(-0.64612616129736f), Q31( 0.72198674804544f)}, {Q31( 0.11657770663191f), Q31(-0.83662833815041f)},
+{Q31(-0.95053182488101f), Q31(-0.96939905138082f)}, {Q31(-0.62228872928622f), Q31( 0.82767262846661f)},
+{Q31( 0.03004475787316f), Q31(-0.99738896333384f)}, {Q31(-0.97987214341034f), Q31( 0.36526129686425f)},
+{Q31(-0.99986980746200f), Q31(-0.36021610299715f)}, {Q31( 0.89110648599879f), Q31(-0.97894250343044f)},
+{Q31( 0.10407960510582f), Q31( 0.77357793811619f)}, {Q31( 0.95964737821728f), Q31(-0.35435818285502f)},
+{Q31( 0.50843233159162f), Q31( 0.96107691266205f)}, {Q31( 0.17006334670615f), Q31(-0.76854025314829f)},
+{Q31( 0.25872675063360f), Q31( 0.99893303933816f)}, {Q31(-0.01115998681937f), Q31( 0.98496019742444f)},
+{Q31(-0.79598702973261f), Q31( 0.97138411318894f)}, {Q31(-0.99264708948101f), Q31(-0.99542822402536f)},
+{Q31(-0.99829663752818f), Q31( 0.01877138824311f)}, {Q31(-0.70801016548184f), Q31( 0.33680685948117f)},
+{Q31(-0.70467057786826f), Q31( 0.93272777501857f)}, {Q31( 0.99846021905254f), Q31(-0.98725746254433f)},
+{Q31(-0.63364968534650f), Q31(-0.16473594423746f)}, {Q31(-0.16258217500792f), Q31(-0.95939125400802f)},
+{Q31(-0.43645594360633f), Q31(-0.94805030113284f)}, {Q31(-0.99848471702976f), Q31( 0.96245166923809f)},
+{Q31(-0.16796458968998f), Q31(-0.98987511890470f)}, {Q31(-0.87979225745213f), Q31(-0.71725725041680f)},
+{Q31( 0.44183099021786f), Q31(-0.93568974498761f)}, {Q31( 0.93310180125532f), Q31(-0.99913308068246f)},
+{Q31(-0.93941931782002f), Q31(-0.56409379640356f)}, {Q31(-0.88590003188677f), Q31( 0.47624600491382f)},
+{Q31( 0.99971463703691f), Q31(-0.83889954253462f)}, {Q31(-0.75376385639978f), Q31( 0.00814643438625f)},
+{Q31( 0.93887685615875f), Q31(-0.11284528204636f)}, {Q31( 0.85126435782309f), Q31( 0.52349251543547f)},
+{Q31( 0.39701421446381f), Q31( 0.81779634174316f)}, {Q31(-0.37024464187437f), Q31(-0.87071656222959f)},
+{Q31(-0.36024828242896f), Q31( 0.34655735648287f)}, {Q31(-0.93388812549209f), Q31(-0.84476541096429f)},
+{Q31(-0.65298804552119f), Q31(-0.18439575450921f)}, {Q31( 0.11960319006843f), Q31( 0.99899346780168f)},
+{Q31( 0.94292565553160f), Q31( 0.83163906518293f)}, {Q31( 0.75081145286948f), Q31(-0.35533223142265f)},
+{Q31( 0.56721979748394f), Q31(-0.24076836414499f)}, {Q31( 0.46857766746029f), Q31(-0.30140233457198f)},
+{Q31( 0.97312313923635f), Q31(-0.99548191630031f)}, {Q31(-0.38299976567017f), Q31( 0.98516909715427f)},
+{Q31( 0.41025800019463f), Q31( 0.02116736935734f)}, {Q31( 0.09638062008048f), Q31( 0.04411984381457f)},
+{Q31(-0.85283249275397f), Q31( 0.91475563922421f)}, {Q31( 0.88866808958124f), Q31(-0.99735267083226f)},
+{Q31(-0.48202429536989f), Q31(-0.96805608884164f)}, {Q31( 0.27572582416567f), Q31( 0.58634753335832f)},
+{Q31(-0.65889129659168f), Q31( 0.58835634138583f)}, {Q31( 0.98838086953732f), Q31( 0.99994349600236f)},
+{Q31(-0.20651349620689f), Q31( 0.54593044066355f)}, {Q31(-0.62126416356920f), Q31(-0.59893681700392f)},
+{Q31( 0.20320105410437f), Q31(-0.86879180355289f)}, {Q31(-0.97790548600584f), Q31( 0.96290806999242f)},
+{Q31( 0.11112534735126f), Q31( 0.21484763313301f)}, {Q31(-0.41368337314182f), Q31( 0.28216837680365f)},
+{Q31( 0.24133038992960f), Q31( 0.51294362630238f)}, {Q31(-0.66393410674885f), Q31(-0.08249679629081f)},
+{Q31(-0.53697829178752f), Q31(-0.97649903936228f)}, {Q31(-0.97224737889348f), Q31( 0.22081333579837f)},
+{Q31( 0.87392477144549f), Q31(-0.12796173740361f)}, {Q31( 0.19050361015753f), Q31( 0.01602615387195f)},
+{Q31(-0.46353441212724f), Q31(-0.95249041539006f)}, {Q31(-0.07064096339021f), Q31(-0.94479803205886f)},
+{Q31(-0.92444085484466f), Q31(-0.10457590187436f)}, {Q31(-0.83822593578728f), Q31(-0.01695043208885f)},
+{Q31( 0.75214681811150f), Q31(-0.99955681042665f)}, {Q31(-0.42102998829339f), Q31( 0.99720941999394f)},
+{Q31(-0.72094786237696f), Q31(-0.35008961934255f)}, {Q31( 0.78843311019251f), Q31( 0.52851398958271f)},
+{Q31( 0.97394027897442f), Q31(-0.26695944086561f)}, {Q31( 0.99206463477946f), Q31(-0.57010120849429f)},
+{Q31( 0.76789609461795f), Q31(-0.76519356730966f)}, {Q31(-0.82002421836409f), Q31(-0.73530179553767f)},
+{Q31( 0.81924990025724f), Q31( 0.99698425250579f)}, {Q31(-0.26719850873357f), Q31( 0.68903369776193f)},
+{Q31(-0.43311260380975f), Q31( 0.85321815947490f)}, {Q31( 0.99194979673836f), Q31( 0.91876249766422f)},
+{Q31(-0.80692001248487f), Q31(-0.32627540663214f)}, {Q31( 0.43080003649976f), Q31(-0.21919095636638f)},
+{Q31( 0.67709491937357f), Q31(-0.95478075822906f)}, {Q31( 0.56151770568316f), Q31(-0.70693811747778f)},
+{Q31( 0.10831862810749f), Q31(-0.08628837174592f)}, {Q31( 0.91229417540436f), Q31(-0.65987351408410f)},
+{Q31(-0.48972893932274f), Q31( 0.56289246362686f)}, {Q31(-0.89033658689697f), Q31(-0.71656563987082f)},
+{Q31( 0.65269447475094f), Q31( 0.65916004833932f)}, {Q31( 0.67439478141121f), Q31(-0.81684380846796f)},
+{Q31(-0.47770832416973f), Q31(-0.16789556203025f)}, {Q31(-0.99715979260878f), Q31(-0.93565784007648f)},
+{Q31(-0.90889593602546f), Q31( 0.62034397054380f)}, {Q31(-0.06618622548177f), Q31(-0.23812217221359f)},
+{Q31( 0.99430266919728f), Q31( 0.18812555317553f)}, {Q31( 0.97686402381843f), Q31(-0.28664534366620f)},
+{Q31( 0.94813650221268f), Q31(-0.97506640027128f)}, {Q31(-0.95434497492853f), Q31(-0.79607978501983f)},
+{Q31(-0.49104783137150f), Q31( 0.32895214359663f)}, {Q31( 0.99881175120751f), Q31( 0.88993983831354f)},
+{Q31( 0.50449166760303f), Q31(-0.85995072408434f)}, {Q31( 0.47162891065108f), Q31(-0.18680204049569f)},
+{Q31(-0.62081581361840f), Q31( 0.75000676218956f)}, {Q31(-0.43867015250812f), Q31( 0.99998069244322f)},
+{Q31( 0.98630563232075f), Q31(-0.53578899600662f)}, {Q31(-0.61510362277374f), Q31(-0.89515019899997f)},
+{Q31(-0.03841517601843f), Q31(-0.69888815681179f)}, {Q31(-0.30102157304644f), Q31(-0.07667808922205f)},
+{Q31( 0.41881284182683f), Q31( 0.02188098922282f)}, {Q31(-0.86135454941237f), Q31( 0.98947480909359f)},
+{Q31( 0.67226861393788f), Q31(-0.13494389011014f)}, {Q31(-0.70737398842068f), Q31(-0.76547349325992f)},
+{Q31( 0.94044946687963f), Q31( 0.09026201157416f)}, {Q31(-0.82386352534327f), Q31( 0.08924768823676f)},
+{Q31(-0.32070666698656f), Q31( 0.50143421908753f)}, {Q31( 0.57593163224487f), Q31(-0.98966422921509f)},
+{Q31(-0.36326018419965f), Q31( 0.07440243123228f)}, {Q31( 0.99979044674350f), Q31(-0.14130287347405f)},
+{Q31(-0.92366023326932f), Q31(-0.97979298068180f)}, {Q31(-0.44607178518598f), Q31(-0.54233252016394f)},
+{Q31( 0.44226800932956f), Q31( 0.71326756742752f)}, {Q31( 0.03671907158312f), Q31( 0.63606389366675f)},
+{Q31( 0.52175424682195f), Q31(-0.85396826735705f)}, {Q31(-0.94701139690956f), Q31(-0.01826348194255f)},
+{Q31(-0.98759606946049f), Q31( 0.82288714303073f)}, {Q31( 0.87434794743625f), Q31( 0.89399495655433f)},
+{Q31(-0.93412041758744f), Q31( 0.41374052024363f)}, {Q31( 0.96063943315511f), Q31( 0.93116709541280f)},
+{Q31( 0.97534253457837f), Q31( 0.86150930812689f)}, {Q31( 0.99642466504163f), Q31( 0.70190043427512f)},
+{Q31(-0.94705089665984f), Q31(-0.29580042814306f)}, {Q31( 0.91599807087376f), Q31(-0.98147830385781f)},
+// Start of duplicated table
+{Q31(-0.99948153278296f), Q31(-0.59483417516607f)}, {Q31( 0.97113454393991f), Q31(-0.67528515225647f)},
+{Q31( 0.14130051758487f), Q31(-0.95090983575689f)}, {Q31(-0.47005496701697f), Q31(-0.37340549728647f)},
+{Q31( 0.80705063769351f), Q31( 0.29653668284408f)}, {Q31(-0.38981478896926f), Q31( 0.89572605717087f)},
+{Q31(-0.01053049862020f), Q31(-0.66959058036166f)}, {Q31(-0.91266367957293f), Q31(-0.11522938140034f)},
+};
+
+#endif /* AVCODEC_AACSBRDATA_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aactab.h

@@ -0,0 +1,125 @@
+/*
+ * AAC data declarations
+ * Copyright (c) 2005-2006 Oded Shimon ( ods15 ods15 dyndns org )
+ * Copyright (c) 2006-2007 Maxim Gavrilov ( maxim.gavrilov gmail com )
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAC data declarations
+ * @author Oded Shimon  ( ods15 ods15 dyndns org )
+ * @author Maxim Gavrilov ( maxim.gavrilov gmail com )
+ */
+
+#ifndef AVCODEC_AACTAB_H
+#define AVCODEC_AACTAB_H
+
+#include "libavutil/mem.h"
+#include "aac.h"
+#include "aac_tablegen_decl.h"
+
+#include <stdint.h>
+
+/* NOTE:
+ * Tables in this file are used by the AAC decoder and will be used by the AAC
+ * encoder.
+ */
+
+/* @name tns_tmp2_map
+ * Tables of the tmp2[] arrays of LPC coefficients used for TNS.
+ * The suffix _M_N[] indicate the values of coef_compress and coef_res
+ * respectively.
+ * @{
+ */
+static const INTFLOAT tns_tmp2_map_1_3[4] = {
+    Q31(0.00000000f), Q31(-0.43388373f),  Q31(0.64278758f),  Q31(0.34202015f),
+};
+
+static const INTFLOAT tns_tmp2_map_0_3[8] = {
+    Q31(0.00000000f), Q31(-0.43388373f), Q31(-0.78183150f), Q31(-0.97492790f),
+    Q31(0.98480773f), Q31( 0.86602539f), Q31( 0.64278758f), Q31( 0.34202015f),
+};
+
+static const INTFLOAT tns_tmp2_map_1_4[8] = {
+    Q31(0.00000000f), Q31(-0.20791170f), Q31(-0.40673664f), Q31(-0.58778524f),
+    Q31(0.67369562f), Q31( 0.52643216f), Q31( 0.36124167f), Q31( 0.18374951f),
+};
+
+static const INTFLOAT tns_tmp2_map_0_4[16] = {
+    Q31( 0.00000000f), Q31(-0.20791170f), Q31(-0.40673664f), Q31(-0.58778524f),
+    Q31(-0.74314481f), Q31(-0.86602539f), Q31(-0.95105654f), Q31(-0.99452192f),
+    Q31( 0.99573416f), Q31( 0.96182561f), Q31( 0.89516330f), Q31( 0.79801720f),
+    Q31( 0.67369562f), Q31( 0.52643216f), Q31( 0.36124167f), Q31( 0.18374951f),
+};
+
+static const INTFLOAT * const tns_tmp2_map[4] = {
+    tns_tmp2_map_0_3,
+    tns_tmp2_map_0_4,
+    tns_tmp2_map_1_3,
+    tns_tmp2_map_1_4
+};
+// @}
+
+/* @name window coefficients
+ * @{
+ */
+DECLARE_ALIGNED(32, extern float,  ff_aac_kbd_long_1024)[1024];
+DECLARE_ALIGNED(32, extern float,  ff_aac_kbd_short_128)[128];
+DECLARE_ALIGNED(32, extern int,    ff_aac_kbd_long_1024_fixed)[1024];
+DECLARE_ALIGNED(32, extern int,    ff_aac_kbd_long_512_fixed)[512];
+DECLARE_ALIGNED(32, extern int,    ff_aac_kbd_short_128_fixed)[128];
+const DECLARE_ALIGNED(32, extern float, ff_aac_eld_window_512)[1920];
+const DECLARE_ALIGNED(32, extern int,   ff_aac_eld_window_512_fixed)[1920];
+const DECLARE_ALIGNED(32, extern float, ff_aac_eld_window_480)[1800];
+const DECLARE_ALIGNED(32, extern int,   ff_aac_eld_window_480_fixed)[1800];
+// @}
+
+/* @name number of scalefactor window bands for long and short transform windows respectively
+ * @{
+ */
+extern const uint8_t ff_aac_num_swb_1024[];
+extern const uint8_t ff_aac_num_swb_512 [];
+extern const uint8_t ff_aac_num_swb_480 [];
+extern const uint8_t ff_aac_num_swb_128 [];
+// @}
+
+extern const uint8_t ff_aac_pred_sfb_max [];
+
+extern const uint32_t ff_aac_scalefactor_code[121];
+extern const uint8_t  ff_aac_scalefactor_bits[121];
+
+extern const uint16_t * const ff_aac_spectral_codes[11];
+extern const uint8_t  * const ff_aac_spectral_bits [11];
+extern const uint16_t  ff_aac_spectral_sizes[11];
+
+extern const float *ff_aac_codebook_vectors[];
+extern const float *ff_aac_codebook_vector_vals[];
+extern const uint16_t *ff_aac_codebook_vector_idx[];
+
+extern const uint16_t * const ff_swb_offset_1024[13];
+extern const uint16_t * const ff_swb_offset_512 [13];
+extern const uint16_t * const ff_swb_offset_480 [13];
+extern const uint16_t * const ff_swb_offset_128 [13];
+
+extern const uint8_t ff_tns_max_bands_1024[13];
+extern const uint8_t ff_tns_max_bands_512 [13];
+extern const uint8_t ff_tns_max_bands_480 [13];
+extern const uint8_t ff_tns_max_bands_128 [13];
+
+#endif /* AVCODEC_AACTAB_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aandcttab.c

@@ -0,0 +1,47 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAN (Arai, Agui and Nakajima) (I)DCT tables
+ */
+
+#include <stdint.h>
+
+const uint16_t ff_aanscales[64] = {
+    /* precomputed values scaled up by 14 bits */
+    16384, 22725, 21407, 19266, 16384, 12873,  8867,  4520,
+    22725, 31521, 29692, 26722, 22725, 17855, 12299,  6270,
+    21407, 29692, 27969, 25172, 21407, 16819, 11585,  5906,
+    19266, 26722, 25172, 22654, 19266, 15137, 10426,  5315,
+    16384, 22725, 21407, 19266, 16384, 12873,  8867,  4520,
+    12873, 17855, 16819, 15137, 12873, 10114,  6967,  3552,
+    8867 , 12299, 11585, 10426,  8867,  6967,  4799,  2446,
+    4520 ,  6270,  5906,  5315,  4520,  3552,  2446,  1247
+};
+
+const uint16_t ff_inv_aanscales[64] = {
+  4096,  2953,  3135,  3483,  4096,  5213,  7568, 14846,
+  2953,  2129,  2260,  2511,  2953,  3759,  5457, 10703,
+  3135,  2260,  2399,  2666,  3135,  3990,  5793, 11363,
+  3483,  2511,  2666,  2962,  3483,  4433,  6436, 12625,
+  4096,  2953,  3135,  3483,  4096,  5213,  7568, 14846,
+  5213,  3759,  3990,  4433,  5213,  6635,  9633, 18895,
+  7568,  5457,  5793,  6436,  7568,  9633, 13985, 27432,
+ 14846, 10703, 11363, 12625, 14846, 18895, 27432, 53809,
+};

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aandcttab.h

@@ -0,0 +1,32 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AAN (Arai, Agui and Nakajima) (I)DCT tables
+ */
+
+#ifndef AVCODEC_AANDCTTAB_H
+#define AVCODEC_AANDCTTAB_H
+
+#include <stdint.h>
+
+extern const uint16_t ff_aanscales[64];
+extern const uint16_t ff_inv_aanscales[64];
+
+#endif /* AVCODEC_AANDCTTAB_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/Makefile

@@ -0,0 +1,30 @@
+OBJS-$(CONFIG_FFT)                      += aarch64/fft_init_aarch64.o
+OBJS-$(CONFIG_H264CHROMA)               += aarch64/h264chroma_init_aarch64.o
+OBJS-$(CONFIG_H264DSP)                  += aarch64/h264dsp_init_aarch64.o
+OBJS-$(CONFIG_H264PRED)                 += aarch64/h264pred_init.o
+OBJS-$(CONFIG_H264QPEL)                 += aarch64/h264qpel_init_aarch64.o
+OBJS-$(CONFIG_HPELDSP)                  += aarch64/hpeldsp_init_aarch64.o
+OBJS-$(CONFIG_IMDCT15)                  += aarch64/imdct15_init.o
+OBJS-$(CONFIG_MPEGAUDIODSP)             += aarch64/mpegaudiodsp_init.o
+OBJS-$(CONFIG_NEON_CLOBBER_TEST)        += aarch64/neontest.o
+OBJS-$(CONFIG_VIDEODSP)                 += aarch64/videodsp_init.o
+
+OBJS-$(CONFIG_RV40_DECODER)             += aarch64/rv40dsp_init_aarch64.o
+OBJS-$(CONFIG_VC1_DECODER)              += aarch64/vc1dsp_init_aarch64.o
+OBJS-$(CONFIG_VORBIS_DECODER)           += aarch64/vorbisdsp_init.o
+
+ARMV8-OBJS-$(CONFIG_VIDEODSP)           += aarch64/videodsp.o
+
+NEON-OBJS-$(CONFIG_FFT)                 += aarch64/fft_neon.o
+NEON-OBJS-$(CONFIG_H264CHROMA)          += aarch64/h264cmc_neon.o
+NEON-OBJS-$(CONFIG_H264DSP)             += aarch64/h264dsp_neon.o              \
+                                           aarch64/h264idct_neon.o
+NEON-OBJS-$(CONFIG_H264PRED)            += aarch64/h264pred_neon.o
+NEON-OBJS-$(CONFIG_H264QPEL)            += aarch64/h264qpel_neon.o             \
+                                           aarch64/hpeldsp_neon.o
+NEON-OBJS-$(CONFIG_HPELDSP)             += aarch64/hpeldsp_neon.o
+NEON-OBJS-$(CONFIG_IMDCT15)             += aarch64/imdct15_neon.o
+NEON-OBJS-$(CONFIG_MPEGAUDIODSP)        += aarch64/mpegaudiodsp_neon.o
+NEON-OBJS-$(CONFIG_MDCT)                += aarch64/mdct_neon.o
+
+NEON-OBJS-$(CONFIG_VORBIS_DECODER)      += aarch64/vorbisdsp_neon.o

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/asm-offsets.h

@@ -0,0 +1,30 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AARCH64_ASM_OFFSETS_H
+#define AVCODEC_AARCH64_ASM_OFFSETS_H
+
+/* CeltIMDCTContext */
+#define CELT_EXPTAB                     0x20
+#define CELT_FFT_N                      0x00
+#define CELT_LEN2                       0x04
+#define CELT_LEN4                       (CELT_LEN2 + 0x4)   // loaded as pair
+#define CELT_TMP                        0x10
+#define CELT_TWIDDLE                    (CELT_TMP + 0x8)    // loaded as pair
+
+#endif /* AVCODEC_AARCH64_ASM_OFFSETS_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/cabac.h

@@ -0,0 +1,104 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AARCH64_CABAC_H
+#define AVCODEC_AARCH64_CABAC_H
+
+#include "config.h"
+#if HAVE_INLINE_ASM
+
+#include "libavutil/attributes.h"
+#include "libavutil/internal.h"
+#include "libavcodec/cabac.h"
+
+#define get_cabac_inline get_cabac_inline_aarch64
+static av_always_inline int get_cabac_inline_aarch64(CABACContext *c,
+                                                     uint8_t *const state)
+{
+    int bit;
+    void *reg_a, *reg_b, *reg_c, *tmp;
+
+    __asm__ volatile(
+        "ldrb       %w[bit]       , [%[state]]                  \n\t"
+        "add        %[r_b]        , %[tables]   , %[lps_off]    \n\t"
+        "mov        %w[tmp]       , %w[range]                   \n\t"
+        "and        %w[range]     , %w[range]   , #0xC0         \n\t"
+        "lsl        %w[r_c]       , %w[range]   , #1            \n\t"
+        "add        %[r_b]        , %[r_b]      , %w[bit], UXTW \n\t"
+        "ldrb       %w[range]     , [%[r_b], %w[r_c], SXTW]     \n\t"
+        "sub        %w[r_c]       , %w[tmp]     , %w[range]     \n\t"
+        "lsl        %w[tmp]       , %w[r_c]     , #17           \n\t"
+        "cmp        %w[tmp]       , %w[low]                     \n\t"
+        "csel       %w[tmp]       , %w[tmp]     , wzr      , cc \n\t"
+        "csel       %w[range]     , %w[r_c]     , %w[range], gt \n\t"
+        "cinv       %w[bit]       , %w[bit]     , cc            \n\t"
+        "sub        %w[low]       , %w[low]     , %w[tmp]       \n\t"
+        "add        %[r_b]        , %[tables]   , %[norm_off]   \n\t"
+        "add        %[r_a]        , %[tables]   , %[mlps_off]   \n\t"
+        "ldrb       %w[tmp]       , [%[r_b], %w[range], SXTW]   \n\t"
+        "ldrb       %w[r_a]       , [%[r_a], %w[bit], SXTW]     \n\t"
+        "lsl        %w[low]       , %w[low]     , %w[tmp]       \n\t"
+        "lsl        %w[range]     , %w[range]   , %w[tmp]       \n\t"
+        "uxth       %w[r_c]       , %w[low]                     \n\t"
+        "strb       %w[r_a]       , [%[state]]                  \n\t"
+        "cbnz       %w[r_c]       , 2f                          \n\t"
+        "ldr        %[r_c]        , [%[c], %[byte]]             \n\t"
+        "ldr        %[r_a]        , [%[c], %[end]]              \n\t"
+        "ldrh       %w[tmp]       , [%[r_c]]                    \n\t"
+        "cmp        %[r_c]        , %[r_a]                      \n\t"
+        "b.ge       1f                                          \n\t"
+        "add        %[r_a]        , %[r_c]      , #2            \n\t"
+        "str        %[r_a]        , [%[c], %[byte]]             \n\t"
+        "1:                                                     \n\t"
+        "sub        %w[r_c]       , %w[low]     , #1            \n\t"
+        "eor        %w[r_c]       , %w[r_c]     , %w[low]       \n\t"
+        "rev        %w[tmp]       , %w[tmp]                     \n\t"
+        "lsr        %w[r_c]       , %w[r_c]     , #15           \n\t"
+        "lsr        %w[tmp]       , %w[tmp]     , #15           \n\t"
+        "ldrb       %w[r_c]       , [%[r_b], %w[r_c], SXTW]     \n\t"
+        "mov        %w[r_b]       , #0xFFFF                     \n\t"
+        "mov        %w[r_a]       , #7                          \n\t"
+        "sub        %w[tmp]       , %w[tmp]     , %w[r_b]       \n\t"
+        "sub        %w[r_c]       , %w[r_a]     , %w[r_c]       \n\t"
+        "lsl        %w[tmp]       , %w[tmp]     , %w[r_c]       \n\t"
+        "add        %w[low]       , %w[low]     , %w[tmp]       \n\t"
+        "2:                                                     \n\t"
+        :    [bit]"=&r"(bit),
+             [low]"+&r"(c->low),
+           [range]"+&r"(c->range),
+             [r_a]"=&r"(reg_a),
+             [r_b]"=&r"(reg_b),
+             [r_c]"=&r"(reg_c),
+             [tmp]"=&r"(tmp)
+        :        [c]"r"(c),
+             [state]"r"(state),
+            [tables]"r"(ff_h264_cabac_tables),
+              [byte]"i"(offsetof(CABACContext, bytestream)),
+               [end]"i"(offsetof(CABACContext, bytestream_end)),
+          [norm_off]"I"(H264_NORM_SHIFT_OFFSET),
+           [lps_off]"I"(H264_LPS_RANGE_OFFSET),
+          [mlps_off]"I"(H264_MLPS_STATE_OFFSET + 128)
+        : "memory", "cc"
+        );
+
+    return bit & 1;
+}
+
+#endif /* HAVE_INLINE_ASM */
+
+#endif /* AVCODEC_AARCH64_CABAC_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/fft_init_aarch64.c

@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include "libavutil/aarch64/cpu.h"
+#include "libavcodec/fft.h"
+
+void ff_fft_permute_neon(FFTContext *s, FFTComplex *z);
+void ff_fft_calc_neon(FFTContext *s, FFTComplex *z);
+
+void ff_imdct_calc_neon(FFTContext *s, FFTSample *output, const FFTSample *input);
+void ff_imdct_half_neon(FFTContext *s, FFTSample *output, const FFTSample *input);
+void ff_mdct_calc_neon(FFTContext *s, FFTSample *output, const FFTSample *input);
+
+av_cold void ff_fft_init_aarch64(FFTContext *s)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags)) {
+        s->fft_permute  = ff_fft_permute_neon;
+        s->fft_calc     = ff_fft_calc_neon;
+#if CONFIG_MDCT
+        s->imdct_calc   = ff_imdct_calc_neon;
+        s->imdct_half   = ff_imdct_half_neon;
+        s->mdct_calc    = ff_mdct_calc_neon;
+        s->mdct_permutation = FF_MDCT_PERM_INTERLEAVE;
+#endif
+    }
+}

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/fft_neon.S

@@ -0,0 +1,442 @@
+/*
+ * ARM NEON optimised FFT
+ *
+ * Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
+ * Copyright (c) 2009 Naotoshi Nojiri
+ * Copyright (c) 2014 Janne Grunau <janne-libav@jannau.net>
+ *
+ * This algorithm (though not any of the implementation details) is
+ * based on libdjbfft by D. J. Bernstein.
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/aarch64/asm.S"
+
+#define M_SQRT1_2 0.70710678118654752440
+
+.macro transpose d0, d1, s0, s1
+        trn1            \d0, \s0, \s1
+        trn2            \d1, \s0, \s1
+.endm
+
+
+function fft4_neon
+        ld1             {v0.2s,v1.2s,v2.2s,v3.2s}, [x0]
+
+        fadd            v4.2s,  v0.2s,  v1.2s   // r0+r1,i0+i1
+        fsub            v6.2s,  v0.2s,  v1.2s   // r0-r1,i0-i1
+
+        ext             v16.8b, v2.8b,  v3.8b,  #4
+        ext             v17.8b, v3.8b,  v2.8b,  #4
+
+        fadd            v5.2s,  v2.2s,  v3.2s   // i2+i3,r2+r3
+        fsub            v7.2s,  v16.2s, v17.2s  // r3-r2,i2-i3
+
+        fadd            v0.2s,  v4.2s,  v5.2s
+        fsub            v2.2s,  v4.2s,  v5.2s
+        fadd            v1.2s,  v6.2s,  v7.2s
+        fsub            v3.2s,  v6.2s,  v7.2s
+
+        st1             {v0.2s,v1.2s,v2.2s,v3.2s}, [x0]
+
+        ret
+endfunc
+
+function fft8_neon
+        mov             x1,  x0
+        ld1             {v0.2s, v1.2s, v2.2s, v3.2s},  [x0], #32
+        ld1             {v16.2s,v17.2s,v18.2s,v19.2s}, [x0]
+        ext             v22.8b, v2.8b,  v3.8b,  #4
+        ext             v23.8b, v3.8b,  v2.8b,  #4
+        fadd            v4.2s,  v16.2s, v17.2s           // r4+r5,i4+i5
+        fadd            v5.2s,  v18.2s, v19.2s           // r6+r7,i6+i7
+        fsub            v17.2s, v16.2s, v17.2s           // r4-r5,i4-i5
+        fsub            v19.2s, v18.2s, v19.2s           // r6-r7,i6-i7
+        rev64           v27.2s, v28.2s  // ???
+        fadd            v20.2s, v0.2s,  v1.2s            // r0+r1,i0+i1
+        fadd            v21.2s, v2.2s,  v3.2s            // r2+r3,i2+i3
+        fmul            v26.2s, v17.2s, v28.2s           // -a2r*w,a2i*w
+        ext             v6.8b,  v4.8b,  v5.8b,  #4
+        ext             v7.8b,  v5.8b,  v4.8b,  #4
+        fmul            v27.2s, v19.2s, v27.2s           // a3r*w,-a3i*w
+        fsub            v23.2s, v22.2s, v23.2s           // i2-i3,r3-r2
+        fsub            v22.2s, v0.2s,  v1.2s            // r0-r1,i0-i1
+        fmul            v24.2s, v17.2s, v28.s[1]         // a2r*w,a2i*w
+        fmul            v25.2s, v19.2s, v28.s[1]         // a3r*w,a3i*w
+        fadd            v0.2s,  v20.2s, v21.2s
+        fsub            v2.2s,  v20.2s, v21.2s
+        fadd            v1.2s,  v22.2s, v23.2s
+        rev64           v26.2s, v26.2s
+        rev64           v27.2s, v27.2s
+        fsub            v3.2s,  v22.2s, v23.2s
+        fsub            v6.2s,  v6.2s,  v7.2s
+        fadd            v24.2s, v24.2s, v26.2s  // a2r+a2i,a2i-a2r   t1,t2
+        fadd            v25.2s, v25.2s, v27.2s  // a3r-a3i,a3i+a3r   t5,t6
+        fadd            v7.2s,  v4.2s,  v5.2s
+        fsub            v18.2s, v2.2s,  v6.2s
+        ext             v26.8b, v24.8b, v25.8b, #4
+        ext             v27.8b, v25.8b, v24.8b, #4
+        fadd            v2.2s,  v2.2s,  v6.2s
+        fsub            v16.2s, v0.2s,  v7.2s
+        fadd            v5.2s,  v25.2s, v24.2s
+        fsub            v4.2s,  v26.2s, v27.2s
+        fadd            v0.2s,  v0.2s,  v7.2s
+        fsub            v17.2s, v1.2s,  v5.2s
+        fsub            v19.2s, v3.2s,  v4.2s
+        fadd            v3.2s,  v3.2s,  v4.2s
+        fadd            v1.2s,  v1.2s,  v5.2s
+
+        st1             {v16.2s,v17.2s,v18.2s,v19.2s}, [x0]
+        st1             {v0.2s, v1.2s, v2.2s, v3.2s},  [x1]
+
+        ret
+endfunc
+
+function fft16_neon
+        mov             x1,  x0
+        ld1             {v0.2s, v1.2s, v2.2s, v3.2s},  [x0], #32
+        ld1             {v16.2s,v17.2s,v18.2s,v19.2s}, [x0], #32
+        ext             v22.8b, v2.8b,  v3.8b,  #4
+        ext             v23.8b, v3.8b,  v2.8b,  #4
+        fadd            v4.2s,  v16.2s, v17.2s           // r4+r5,i4+i5
+        fadd            v5.2s,  v18.2s, v19.2s           // r6+r7,i6+i7
+        fsub            v17.2s, v16.2s, v17.2s           // r4-r5,i4-i5
+        fsub            v19.2s, v18.2s, v19.2s           // r6-r7,i6-i7
+        rev64           v27.2s, v28.2s  // ???
+        fadd            v20.2s, v0.2s,  v1.2s            // r0+r1,i0+i1
+        fadd            v21.2s, v2.2s,  v3.2s            // r2+r3,i2+i3
+        fmul            v26.2s, v17.2s, v28.2s           // -a2r*w,a2i*w
+        ext             v6.8b,  v4.8b,  v5.8b,  #4
+        ext             v7.8b,  v5.8b,  v4.8b,  #4
+        fmul            v27.2s, v19.2s, v27.2s           // a3r*w,-a3i*w
+        fsub            v23.2s, v22.2s, v23.2s           // i2-i3,r3-r2
+        fsub            v22.2s, v0.2s,  v1.2s            // r0-r1,i0-i1
+        fmul            v24.2s, v17.2s, v28.s[1]         // a2r*w,a2i*w
+        fmul            v25.2s, v19.2s, v28.s[1]         // a3r*w,a3i*w
+        fadd            v0.2s,  v20.2s, v21.2s
+        fsub            v2.2s,  v20.2s, v21.2s
+        fadd            v1.2s,  v22.2s, v23.2s
+        rev64           v26.2s, v26.2s
+        rev64           v27.2s, v27.2s
+        fsub            v3.2s,  v22.2s, v23.2s
+        fsub            v6.2s,  v6.2s,  v7.2s
+        fadd            v24.2s, v24.2s, v26.2s  // a2r+a2i,a2i-a2r   t1,t2
+        fadd            v25.2s, v25.2s, v27.2s  // a3r-a3i,a3i+a3r   t5,t6
+        fadd            v7.2s,  v4.2s,  v5.2s
+        fsub            v18.2s, v2.2s,  v6.2s
+        ld1             {v20.4s,v21.4s}, [x0], #32
+        ld1             {v22.4s,v23.4s}, [x0], #32
+        ext             v26.8b, v24.8b, v25.8b, #4
+        ext             v27.8b, v25.8b, v24.8b, #4
+        fadd            v2.2s,  v2.2s,  v6.2s
+        fsub            v16.2s, v0.2s,  v7.2s
+        fadd            v5.2s,  v25.2s, v24.2s
+        fsub            v4.2s,  v26.2s, v27.2s
+        transpose       v24.2d, v25.2d, v20.2d, v22.2d
+        transpose       v26.2d, v27.2d, v21.2d, v23.2d
+        fadd            v0.2s,  v0.2s,  v7.2s
+        fsub            v17.2s, v1.2s,  v5.2s
+        fsub            v19.2s, v3.2s,  v4.2s
+        fadd            v3.2s,  v3.2s,  v4.2s
+        fadd            v1.2s,  v1.2s,  v5.2s
+        ext             v20.16b, v21.16b, v21.16b,  #4
+        ext             v21.16b, v23.16b, v23.16b,  #4
+
+        zip1            v0.2d,  v0.2d,  v1.2d   // {z[0],   z[1]}
+        zip1            v1.2d,  v2.2d,  v3.2d   // {z[2],   z[3]}
+        zip1            v2.2d,  v16.2d, v17.2d  // {z[o1],  z[o1+1]}
+        zip1            v3.2d,  v18.2d, v19.2d  // {z[o1+2],z[o1+3]}
+
+        // 2 x fft4
+        transpose       v22.2d, v23.2d, v20.2d, v21.2d
+
+        fadd            v4.4s,  v24.4s, v25.4s
+        fadd            v5.4s,  v26.4s, v27.4s
+        fsub            v6.4s,  v24.4s, v25.4s
+        fsub            v7.4s,  v22.4s, v23.4s
+
+        ld1             {v23.4s},  [x14]
+
+        fadd            v24.4s, v4.4s,  v5.4s   // {z[o2+0],z[o2+1]}
+        fsub            v26.4s, v4.4s,  v5.4s   // {z[o2+2],z[o2+3]}
+        fadd            v25.4s, v6.4s,  v7.4s   // {z[o3+0],z[o3+1]}
+        fsub            v27.4s, v6.4s,  v7.4s   // {z[o3+2],z[o3+3]}
+
+        //fft_pass_neon_16
+        rev64           v7.4s,  v25.4s
+        fmul            v25.4s, v25.4s, v23.s[1]
+        fmul            v7.4s,  v7.4s,  v29.4s
+        fmla            v25.4s, v7.4s,  v23.s[3] // {t1a,t2a,t5a,t6a}
+
+        zip1            v20.4s, v24.4s, v25.4s
+        zip2            v21.4s, v24.4s, v25.4s
+        fneg            v22.4s, v20.4s
+        fadd            v4.4s,  v21.4s, v20.4s
+        fsub            v6.4s,  v20.4s, v21.4s  // just the second half
+        fadd            v5.4s,  v21.4s, v22.4s  // just the first half
+
+        tbl             v4.16b, {v4.16b},        v30.16b // trans4_float
+        tbl             v5.16b, {v5.16b,v6.16b}, v31.16b // trans8_float
+
+        fsub            v20.4s, v0.4s,  v4.4s   // {z[o2],z[o2+1]}
+        fadd            v16.4s, v0.4s,  v4.4s   // {z[0], z[1]}
+        fsub            v22.4s, v2.4s,  v5.4s   // {z[o3],z[o3+1]}
+        fadd            v18.4s, v2.4s,  v5.4s   // {z[o1],z[o1+1]}
+
+//second half
+        rev64           v6.4s,  v26.4s
+        fmul            v26.4s, v26.4s, v23.s[2]
+        rev64           v7.4s,  v27.4s
+        fmul            v27.4s, v27.4s, v23.s[3]
+        fmul            v6.4s,  v6.4s,  v29.4s
+        fmul            v7.4s,  v7.4s,  v29.4s
+        fmla            v26.4s, v6.4s,  v23.s[2] // {t1,t2,t5,t6}
+        fmla            v27.4s, v7.4s,  v23.s[1] // {t1a,t2a,t5a,t6a}
+
+        zip1            v24.4s, v26.4s, v27.4s
+        zip2            v25.4s, v26.4s, v27.4s
+        fneg            v26.4s, v24.4s
+        fadd            v4.4s,  v25.4s, v24.4s
+        fsub            v6.4s,  v24.4s, v25.4s  // just the second half
+        fadd            v5.4s,  v25.4s, v26.4s  // just the first half
+
+        tbl             v4.16b, {v4.16b},        v30.16b // trans4_float
+        tbl             v5.16b, {v5.16b,v6.16b}, v31.16b // trans8_float
+
+        fadd            v17.4s, v1.4s, v4.4s    // {z[2], z[3]}
+        fsub            v21.4s, v1.4s, v4.4s    // {z[o2+2],z[o2+3]}
+        fadd            v19.4s, v3.4s, v5.4s    // {z[o1+2],z[o1+3]}
+        fsub            v23.4s, v3.4s, v5.4s    // {z[o3+2],z[o3+3]}
+
+        st1             {v16.4s,v17.4s}, [x1], #32
+        st1             {v18.4s,v19.4s}, [x1], #32
+        st1             {v20.4s,v21.4s}, [x1], #32
+        st1             {v22.4s,v23.4s}, [x1], #32
+
+        ret
+endfunc
+
+
+const  trans4_float, align=4
+        .byte    0,  1,  2,  3
+        .byte    8,  9, 10, 11
+        .byte    4,  5,  6,  7
+        .byte   12, 13, 14, 15
+endconst
+
+const  trans8_float, align=4
+        .byte   24, 25, 26, 27
+        .byte    0,  1,  2,  3
+        .byte   28, 29, 30, 31
+        .byte    4,  5,  6,  7
+endconst
+
+function fft_pass_neon
+        sub             x6,  x2,  #1            // n - 1, loop counter
+        lsl             x5,  x2,  #3            // 2 * n * sizeof FFTSample
+        lsl             x1,  x2,  #4            // 2 * n * sizeof FFTComplex
+        add             x5,  x4,  x5            // wim
+        add             x3,  x1,  x2,  lsl #5   // 4 * n * sizeof FFTComplex
+        add             x2,  x0,  x2,  lsl #5   // &z[o2]
+        add             x3,  x0,  x3            // &z[o3]
+        add             x1,  x0,  x1            // &z[o1]
+        ld1             {v20.4s},[x2]           // {z[o2],z[o2+1]}
+        ld1             {v22.4s},[x3]           // {z[o3],z[o3+1]}
+        ld1             {v4.2s},  [x4], #8      // {wre[0],wre[1]}
+        trn2            v25.2d, v20.2d, v22.2d
+        sub             x5,  x5,  #4            // wim--
+        trn1            v24.2d, v20.2d, v22.2d
+        ld1             {v5.s}[0],  [x5], x7    // d5[0] = wim[-1]
+        rev64           v7.4s,  v25.4s
+        fmul            v25.4s, v25.4s, v4.s[1]
+        ld1             {v16.4s}, [x0]          // {z[0],z[1]}
+        fmul            v7.4s,  v7.4s,  v29.4s
+        ld1             {v17.4s}, [x1]          // {z[o1],z[o1+1]}
+        prfm            pldl1keep, [x2, #16]
+        prfm            pldl1keep, [x3, #16]
+        fmla            v25.4s, v7.4s,  v5.s[0] // {t1a,t2a,t5a,t6a}
+        prfm            pldl1keep, [x0, #16]
+        prfm            pldl1keep, [x1, #16]
+
+        zip1            v20.4s, v24.4s, v25.4s
+        zip2            v21.4s, v24.4s, v25.4s
+        fneg            v22.4s, v20.4s
+        fadd            v4.4s,  v21.4s, v20.4s
+        fsub            v6.4s,  v20.4s, v21.4s  // just the second half
+        fadd            v5.4s,  v21.4s, v22.4s  // just the first half
+
+        tbl             v4.16b, {v4.16b},        v30.16b // trans4_float
+        tbl             v5.16b, {v5.16b,v6.16b}, v31.16b // trans8_float
+
+        fadd            v20.4s, v16.4s, v4.4s
+        fsub            v22.4s, v16.4s, v4.4s
+        fadd            v21.4s, v17.4s, v5.4s
+        st1             {v20.4s}, [x0], #16     // {z[0], z[1]}
+        fsub            v23.4s, v17.4s, v5.4s
+
+        st1             {v21.4s}, [x1], #16     // {z[o1],z[o1+1]}
+        st1             {v22.4s}, [x2], #16     // {z[o2],z[o2+1]}
+        st1             {v23.4s}, [x3], #16     // {z[o3],z[o3+1]}
+1:
+        ld1             {v20.4s},[x2]    // {z[o2],z[o2+1]}
+        ld1             {v22.4s},[x3]    // {z[o3],z[o3+1]}
+        ld1             {v4.2s}, [x4], #8       // {wre[0],wre[1]}
+        transpose       v26.2d, v27.2d, v20.2d, v22.2d
+        ld1             {v5.2s}, [x5], x7       // {wim[-1],wim[0]}
+        rev64           v6.4s,  v26.4s
+        fmul            v26.4s, v26.4s, v4.s[0]
+        rev64           v7.4s,  v27.4s
+        fmul            v27.4s, v27.4s, v4.s[1]
+        fmul            v6.4s,  v6.4s,  v29.4s
+        fmul            v7.4s,  v7.4s,  v29.4s
+        ld1             {v16.4s},[x0]           // {z[0],z[1]}
+        fmla            v26.4s, v6.4s,  v5.s[1] // {t1,t2,t5,t6}
+        fmla            v27.4s, v7.4s,  v5.s[0] // {t1a,t2a,t5a,t6a}
+        ld1             {v17.4s},[x1]           // {z[o1],z[o1+1]}
+
+        subs            x6,  x6,  #1            // n--
+
+        zip1            v20.4s, v26.4s, v27.4s
+        zip2            v21.4s, v26.4s, v27.4s
+        fneg            v22.4s, v20.4s
+        fadd            v4.4s,  v21.4s, v20.4s
+        fsub            v6.4s,  v20.4s, v21.4s  // just the second half
+        fadd            v5.4s,  v21.4s, v22.4s  // just the first half
+
+        tbl             v4.16b, {v4.16b},        v30.16b // trans4_float
+        tbl             v5.16b, {v5.16b,v6.16b}, v31.16b // trans8_float
+
+        fadd            v20.4s, v16.4s, v4.4s
+        fsub            v22.4s, v16.4s, v4.4s
+        fadd            v21.4s, v17.4s, v5.4s
+        st1             {v20.4s}, [x0], #16     // {z[0], z[1]}
+        fsub            v23.4s, v17.4s, v5.4s
+
+        st1             {v21.4s}, [x1], #16     // {z[o1],z[o1+1]}
+        st1             {v22.4s}, [x2], #16     // {z[o2],z[o2+1]}
+        st1             {v23.4s}, [x3], #16     // {z[o3],z[o3+1]}
+        b.ne            1b
+
+        ret
+endfunc
+
+.macro  def_fft n, n2, n4
+function fft\n\()_neon, align=6
+        sub             sp,  sp,  #16
+        stp             x28, x30, [sp]
+        add             x28, x0,  #\n4*2*8
+        bl              fft\n2\()_neon
+        mov             x0,  x28
+        bl              fft\n4\()_neon
+        add             x0,  x28, #\n4*1*8
+        bl              fft\n4\()_neon
+        sub             x0,  x28, #\n4*2*8
+        ldp             x28, x30, [sp], #16
+        movrel          x4,  X(ff_cos_\n)
+        mov             x2,  #\n4>>1
+        b               fft_pass_neon
+endfunc
+.endm
+
+        def_fft    32,    16,     8
+        def_fft    64,    32,    16
+        def_fft   128,    64,    32
+        def_fft   256,   128,    64
+        def_fft   512,   256,   128
+        def_fft  1024,   512,   256
+        def_fft  2048,  1024,   512
+        def_fft  4096,  2048,  1024
+        def_fft  8192,  4096,  2048
+        def_fft 16384,  8192,  4096
+        def_fft 32768, 16384,  8192
+        def_fft 65536, 32768, 16384
+
+function ff_fft_calc_neon, export=1
+        prfm            pldl1keep, [x1]
+        movrel          x10, trans4_float
+        ldr             w2,  [x0]
+        movrel          x11, trans8_float
+        sub             w2,  w2,  #2
+        movrel          x3,  fft_tab_neon
+        ld1             {v30.16b}, [x10]
+        mov             x7,  #-8
+        movrel          x12, pmmp
+        ldr             x3,  [x3, x2, lsl #3]
+        movrel          x13, mppm
+        movrel          x14, X(ff_cos_16)
+        ld1             {v31.16b}, [x11]
+        mov             x0,  x1
+        ld1             {v29.4s},  [x12]         // pmmp
+        ld1             {v28.4s},  [x13]
+        br              x3
+endfunc
+
+function ff_fft_permute_neon, export=1
+        mov             x6,  #1
+        ldr             w2,  [x0]       // nbits
+        ldr             x3,  [x0, #16]  // tmp_buf
+        ldr             x0,  [x0, #8]   // revtab
+        lsl             x6,  x6, x2
+        mov             x2,  x6
+1:
+        ld1             {v0.2s,v1.2s}, [x1], #16
+        ldr             w4,  [x0], #4
+        uxth            w5,  w4
+        lsr             w4,  w4,  #16
+        add             x5,  x3,  x5,  lsl #3
+        add             x4,  x3,  x4,  lsl #3
+        st1             {v0.2s}, [x5]
+        st1             {v1.2s}, [x4]
+        subs            x6,  x6, #2
+        b.gt            1b
+
+        sub             x1,  x1,  x2,  lsl #3
+1:
+        ld1             {v0.4s,v1.4s}, [x3], #32
+        st1             {v0.4s,v1.4s}, [x1], #32
+        subs            x2,  x2,  #4
+        b.gt            1b
+
+        ret
+endfunc
+
+const   fft_tab_neon, relocate=1
+        .quad fft4_neon
+        .quad fft8_neon
+        .quad fft16_neon
+        .quad fft32_neon
+        .quad fft64_neon
+        .quad fft128_neon
+        .quad fft256_neon
+        .quad fft512_neon
+        .quad fft1024_neon
+        .quad fft2048_neon
+        .quad fft4096_neon
+        .quad fft8192_neon
+        .quad fft16384_neon
+        .quad fft32768_neon
+        .quad fft65536_neon
+endconst
+
+const   pmmp, align=4
+        .float          +1.0, -1.0, -1.0, +1.0
+endconst
+
+const   mppm, align=4
+        .float          -M_SQRT1_2, M_SQRT1_2, M_SQRT1_2, -M_SQRT1_2
+endconst

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/h264chroma_init_aarch64.c

@@ -0,0 +1,59 @@
+/*
+ * ARM NEON optimised H.264 chroma functions
+ * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/aarch64/cpu.h"
+#include "libavcodec/h264chroma.h"
+
+#include "config.h"
+
+void ff_put_h264_chroma_mc8_neon(uint8_t *dst, uint8_t *src, int stride,
+                                 int h, int x, int y);
+void ff_put_h264_chroma_mc4_neon(uint8_t *dst, uint8_t *src, int stride,
+                                 int h, int x, int y);
+void ff_put_h264_chroma_mc2_neon(uint8_t *dst, uint8_t *src, int stride,
+                                 int h, int x, int y);
+
+void ff_avg_h264_chroma_mc8_neon(uint8_t *dst, uint8_t *src, int stride,
+                                 int h, int x, int y);
+void ff_avg_h264_chroma_mc4_neon(uint8_t *dst, uint8_t *src, int stride,
+                                 int h, int x, int y);
+void ff_avg_h264_chroma_mc2_neon(uint8_t *dst, uint8_t *src, int stride,
+                                 int h, int x, int y);
+
+av_cold void ff_h264chroma_init_aarch64(H264ChromaContext *c, int bit_depth)
+{
+    const int high_bit_depth = bit_depth > 8;
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags) && !high_bit_depth) {
+        c->put_h264_chroma_pixels_tab[0] = ff_put_h264_chroma_mc8_neon;
+        c->put_h264_chroma_pixels_tab[1] = ff_put_h264_chroma_mc4_neon;
+        c->put_h264_chroma_pixels_tab[2] = ff_put_h264_chroma_mc2_neon;
+
+        c->avg_h264_chroma_pixels_tab[0] = ff_avg_h264_chroma_mc8_neon;
+        c->avg_h264_chroma_pixels_tab[1] = ff_avg_h264_chroma_mc4_neon;
+        c->avg_h264_chroma_pixels_tab[2] = ff_avg_h264_chroma_mc2_neon;
+    }
+}

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/h264cmc_neon.S

@@ -0,0 +1,453 @@
+/*
+ * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
+ * Copyright (c) 2013 Janne Grunau <janne-libav@jannau.net>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/aarch64/asm.S"
+
+/* chroma_mc8(uint8_t *dst, uint8_t *src, int stride, int h, int x, int y) */
+.macro  h264_chroma_mc8 type, codec=h264
+function ff_\type\()_\codec\()_chroma_mc8_neon, export=1
+        sxtw            x2,  w2
+  .ifc \type,avg
+        mov             x8,  x0
+  .endif
+        prfm            pldl1strm, [x1]
+        prfm            pldl1strm, [x1, x2]
+  .ifc \codec,rv40
+        movrel          x6,  rv40bias
+        lsr             w9,  w5,  #1
+        lsr             w10, w4,  #1
+        lsl             w9,  w9,  #3
+        lsl             w10, w10, #1
+        add             w9,  w9,  w10
+        add             x6,  x6,  w9, UXTW
+        ld1r            {v22.8H}, [x6]
+  .endif
+  .ifc \codec,vc1
+        movi            v22.8H,   #28
+  .endif
+        mul             w7,  w4,  w5
+        lsl             w14, w5,  #3
+        lsl             w13, w4,  #3
+        cmp             w7,  #0
+        sub             w6,  w14, w7
+        sub             w12, w13, w7
+        sub             w4,  w7,  w13
+        sub             w4,  w4,  w14
+        add             w4,  w4,  #64
+        b.eq            2f
+
+        dup             v0.8B,  w4
+        dup             v1.8B,  w12
+        ld1             {v4.8B, v5.8B}, [x1], x2
+        dup             v2.8B,  w6
+        dup             v3.8B,  w7
+        ext             v5.8B,  v4.8B,  v5.8B,  #1
+1:      ld1             {v6.8B, v7.8B}, [x1], x2
+        umull           v16.8H, v4.8B,  v0.8B
+        umlal           v16.8H, v5.8B,  v1.8B
+        ext             v7.8B,  v6.8B,  v7.8B,  #1
+        ld1             {v4.8B, v5.8B}, [x1], x2
+        umlal           v16.8H, v6.8B,  v2.8B
+        prfm            pldl1strm, [x1]
+        ext             v5.8B,  v4.8B,  v5.8B,  #1
+        umlal           v16.8H, v7.8B,  v3.8B
+        umull           v17.8H, v6.8B,  v0.8B
+        subs            w3,  w3,  #2
+        umlal           v17.8H, v7.8B, v1.8B
+        umlal           v17.8H, v4.8B, v2.8B
+        umlal           v17.8H, v5.8B, v3.8B
+        prfm            pldl1strm, [x1, x2]
+  .ifc \codec,h264
+        rshrn           v16.8B, v16.8H, #6
+        rshrn           v17.8B, v17.8H, #6
+  .else
+        add             v16.8H, v16.8H, v22.8H
+        add             v17.8H, v17.8H, v22.8H
+        shrn            v16.8B, v16.8H, #6
+        shrn            v17.8B, v17.8H, #6
+  .endif
+  .ifc \type,avg
+        ld1             {v20.8B}, [x8], x2
+        ld1             {v21.8B}, [x8], x2
+        urhadd          v16.8B, v16.8B, v20.8B
+        urhadd          v17.8B, v17.8B, v21.8B
+  .endif
+        st1             {v16.8B}, [x0], x2
+        st1             {v17.8B}, [x0], x2
+        b.gt            1b
+        ret
+
+2:      adds            w12, w12, w6
+        dup             v0.8B, w4
+        b.eq            5f
+        tst             w6,  w6
+        dup             v1.8B, w12
+        b.eq            4f
+
+        ld1             {v4.8B}, [x1], x2
+3:      ld1             {v6.8B}, [x1], x2
+        umull           v16.8H, v4.8B,  v0.8B
+        umlal           v16.8H, v6.8B,  v1.8B
+        ld1             {v4.8B}, [x1], x2
+        umull           v17.8H, v6.8B,  v0.8B
+        umlal           v17.8H, v4.8B,  v1.8B
+        prfm            pldl1strm, [x1]
+  .ifc \codec,h264
+        rshrn           v16.8B, v16.8H, #6
+        rshrn           v17.8B, v17.8H, #6
+  .else
+        add             v16.8H, v16.8H, v22.8H
+        add             v17.8H, v17.8H, v22.8H
+        shrn            v16.8B, v16.8H, #6
+        shrn            v17.8B, v17.8H, #6
+  .endif
+        prfm            pldl1strm, [x1, x2]
+  .ifc \type,avg
+        ld1             {v20.8B}, [x8], x2
+        ld1             {v21.8B}, [x8], x2
+        urhadd          v16.8B, v16.8B, v20.8B
+        urhadd          v17.8B, v17.8B, v21.8B
+  .endif
+        subs            w3,  w3,  #2
+        st1             {v16.8B}, [x0], x2
+        st1             {v17.8B}, [x0], x2
+        b.gt            3b
+        ret
+
+4:      ld1             {v4.8B, v5.8B}, [x1], x2
+        ld1             {v6.8B, v7.8B}, [x1], x2
+        ext             v5.8B,  v4.8B,  v5.8B,  #1
+        ext             v7.8B,  v6.8B,  v7.8B,  #1
+        prfm            pldl1strm, [x1]
+        subs            w3,  w3,  #2
+        umull           v16.8H, v4.8B, v0.8B
+        umlal           v16.8H, v5.8B, v1.8B
+        umull           v17.8H, v6.8B, v0.8B
+        umlal           v17.8H, v7.8B, v1.8B
+        prfm            pldl1strm, [x1, x2]
+  .ifc \codec,h264
+        rshrn           v16.8B, v16.8H, #6
+        rshrn           v17.8B, v17.8H, #6
+  .else
+        add             v16.8H, v16.8H, v22.8H
+        add             v17.8H, v17.8H, v22.8H
+        shrn            v16.8B, v16.8H, #6
+        shrn            v17.8B, v17.8H, #6
+  .endif
+  .ifc \type,avg
+        ld1             {v20.8B}, [x8], x2
+        ld1             {v21.8B}, [x8], x2
+        urhadd          v16.8B, v16.8B, v20.8B
+        urhadd          v17.8B, v17.8B, v21.8B
+  .endif
+        st1             {v16.8B}, [x0], x2
+        st1             {v17.8B}, [x0], x2
+        b.gt            4b
+        ret
+
+5:      ld1             {v4.8B}, [x1], x2
+        ld1             {v5.8B}, [x1], x2
+        prfm            pldl1strm, [x1]
+        subs            w3,  w3,  #2
+        umull           v16.8H, v4.8B, v0.8B
+        umull           v17.8H, v5.8B, v0.8B
+        prfm            pldl1strm, [x1, x2]
+  .ifc \codec,h264
+        rshrn           v16.8B, v16.8H, #6
+        rshrn           v17.8B, v17.8H, #6
+  .else
+        add             v16.8H, v16.8H, v22.8H
+        add             v17.8H, v17.8H, v22.8H
+        shrn            v16.8B, v16.8H, #6
+        shrn            v17.8B, v17.8H, #6
+  .endif
+  .ifc \type,avg
+        ld1             {v20.8B}, [x8], x2
+        ld1             {v21.8B}, [x8], x2
+        urhadd          v16.8B, v16.8B, v20.8B
+        urhadd          v17.8B, v17.8B, v21.8B
+  .endif
+        st1             {v16.8B}, [x0], x2
+        st1             {v17.8B}, [x0], x2
+        b.gt            5b
+        ret
+endfunc
+.endm
+
+/* chroma_mc4(uint8_t *dst, uint8_t *src, int stride, int h, int x, int y) */
+.macro  h264_chroma_mc4 type, codec=h264
+function ff_\type\()_\codec\()_chroma_mc4_neon, export=1
+        sxtw            x2,  w2
+  .ifc \type,avg
+        mov             x8,  x0
+  .endif
+        prfm            pldl1strm, [x1]
+        prfm            pldl1strm, [x1, x2]
+  .ifc \codec,rv40
+        movrel          x6,  rv40bias
+        lsr             w9,  w5,  #1
+        lsr             w10, w4,  #1
+        lsl             w9,  w9,  #3
+        lsl             w10, w10, #1
+        add             w9,  w9,  w10
+        add             x6,  x6,  w9, UXTW
+        ld1r            {v22.8H}, [x6]
+  .endif
+  .ifc \codec,vc1
+        movi            v22.8H,   #28
+  .endif
+        mul             w7,  w4,  w5
+        lsl             w14, w5,  #3
+        lsl             w13, w4,  #3
+        cmp             w7,  #0
+        sub             w6,  w14, w7
+        sub             w12, w13, w7
+        sub             w4,  w7,  w13
+        sub             w4,  w4,  w14
+        add             w4,  w4,  #64
+        b.eq            2f
+
+        dup             v24.8B,  w4
+        dup             v25.8B,  w12
+        ld1             {v4.8B}, [x1], x2
+        dup             v26.8B,  w6
+        dup             v27.8B,  w7
+        ext             v5.8B,  v4.8B,  v5.8B, #1
+        trn1            v0.2S,  v24.2S, v25.2S
+        trn1            v2.2S,  v26.2S, v27.2S
+        trn1            v4.2S,  v4.2S,  v5.2S
+1:      ld1             {v6.8B}, [x1], x2
+        ext             v7.8B,  v6.8B,  v7.8B, #1
+        trn1            v6.2S,  v6.2S,  v7.2S
+        umull           v18.8H, v4.8B,  v0.8B
+        umlal           v18.8H, v6.8B,  v2.8B
+        ld1             {v4.8B}, [x1], x2
+        ext             v5.8B,  v4.8B,  v5.8B, #1
+        trn1            v4.2S,  v4.2S,  v5.2S
+        prfm            pldl1strm, [x1]
+        umull           v19.8H, v6.8B,  v0.8B
+        umlal           v19.8H, v4.8B,  v2.8B
+        trn1            v30.2D, v18.2D, v19.2D
+        trn2            v31.2D, v18.2D, v19.2D
+        add             v18.8H, v30.8H, v31.8H
+  .ifc \codec,h264
+        rshrn           v16.8B, v18.8H, #6
+  .else
+        add             v18.8H, v18.8H, v22.8H
+        shrn            v16.8B, v18.8H, #6
+  .endif
+        subs            w3,  w3,  #2
+        prfm            pldl1strm, [x1, x2]
+  .ifc \type,avg
+        ld1             {v20.S}[0], [x8], x2
+        ld1             {v20.S}[1], [x8], x2
+        urhadd          v16.8B, v16.8B, v20.8B
+  .endif
+        st1             {v16.S}[0], [x0], x2
+        st1             {v16.S}[1], [x0], x2
+        b.gt            1b
+        ret
+
+2:      adds            w12, w12, w6
+        dup             v30.8B, w4
+        b.eq            5f
+        tst             w6,  w6
+        dup             v31.8B, w12
+        trn1            v0.2S,  v30.2S, v31.2S
+        trn2            v1.2S,  v30.2S, v31.2S
+        b.eq            4f
+
+        ext             v1.8B,  v0.8B,  v1.8B, #4
+        ld1             {v4.S}[0], [x1], x2
+3:      ld1             {v4.S}[1], [x1], x2
+        umull           v18.8H, v4.8B,  v0.8B
+        ld1             {v4.S}[0], [x1], x2
+        umull           v19.8H, v4.8B,  v1.8B
+        trn1            v30.2D, v18.2D, v19.2D
+        trn2            v31.2D, v18.2D, v19.2D
+        add             v18.8H, v30.8H, v31.8H
+        prfm            pldl1strm, [x1]
+  .ifc \codec,h264
+        rshrn           v16.8B, v18.8H, #6
+  .else
+        add             v18.8H, v18.8H, v22.8H
+        shrn            v16.8B, v18.8H, #6
+  .endif
+  .ifc \type,avg
+        ld1             {v20.S}[0], [x8], x2
+        ld1             {v20.S}[1], [x8], x2
+        urhadd          v16.8B, v16.8B, v20.8B
+  .endif
+        subs            w3,  w3,  #2
+        prfm            pldl1strm, [x1, x2]
+        st1             {v16.S}[0], [x0], x2
+        st1             {v16.S}[1], [x0], x2
+        b.gt            3b
+        ret
+
+4:      ld1             {v4.8B}, [x1], x2
+        ld1             {v6.8B}, [x1], x2
+        ext             v5.8B,  v4.8B,  v5.8B, #1
+        ext             v7.8B,  v6.8B,  v7.8B, #1
+        trn1            v4.2S,  v4.2S,  v5.2S
+        trn1            v6.2S,  v6.2S,  v7.2S
+        umull           v18.8H, v4.8B,  v0.8B
+        umull           v19.8H, v6.8B,  v0.8B
+        subs            w3,  w3,  #2
+        trn1            v30.2D, v18.2D, v19.2D
+        trn2            v31.2D, v18.2D, v19.2D
+        add             v18.8H, v30.8H, v31.8H
+        prfm            pldl1strm, [x1]
+  .ifc \codec,h264
+        rshrn           v16.8B, v18.8H, #6
+  .else
+        add             v18.8H, v18.8H, v22.8H
+        shrn            v16.8B, v18.8H, #6
+  .endif
+  .ifc \type,avg
+        ld1             {v20.S}[0], [x8], x2
+        ld1             {v20.S}[1], [x8], x2
+        urhadd          v16.8B, v16.8B, v20.8B
+  .endif
+        prfm            pldl1strm, [x1]
+        st1             {v16.S}[0], [x0], x2
+        st1             {v16.S}[1], [x0], x2
+        b.gt            4b
+        ret
+
+5:      ld1             {v4.S}[0], [x1], x2
+        ld1             {v4.S}[1], [x1], x2
+        umull           v18.8H, v4.8B,  v30.8B
+        subs            w3,  w3,  #2
+        prfm            pldl1strm, [x1]
+  .ifc \codec,h264
+        rshrn           v16.8B, v18.8H, #6
+  .else
+        add             v18.8H, v18.8H, v22.8H
+        shrn            v16.8B, v18.8H, #6
+  .endif
+  .ifc \type,avg
+        ld1             {v20.S}[0], [x8], x2
+        ld1             {v20.S}[1], [x8], x2
+        urhadd          v16.8B, v16.8B, v20.8B
+  .endif
+        prfm            pldl1strm, [x1]
+        st1             {v16.S}[0], [x0], x2
+        st1             {v16.S}[1], [x0], x2
+        b.gt            5b
+        ret
+endfunc
+.endm
+
+.macro  h264_chroma_mc2 type
+function ff_\type\()_h264_chroma_mc2_neon, export=1
+        sxtw            x2,  w2
+        prfm            pldl1strm, [x1]
+        prfm            pldl1strm, [x1, x2]
+        orr             w7,  w4,  w5
+        cbz             w7,  2f
+
+        mul             w7,  w4,  w5
+        lsl             w14, w5,  #3
+        lsl             w13, w4,  #3
+        sub             w6,  w14, w7
+        sub             w12, w13, w7
+        sub             w4,  w7,  w13
+        sub             w4,  w4,  w14
+        add             w4,  w4,  #64
+        dup             v0.8B,  w4
+        dup             v2.8B,  w12
+        dup             v1.8B,  w6
+        dup             v3.8B,  w7
+        trn1            v0.4H,  v0.4H,  v2.4H
+        trn1            v1.4H,  v1.4H,  v3.4H
+1:
+        ld1             {v4.S}[0],  [x1], x2
+        ld1             {v4.S}[1],  [x1], x2
+        rev64           v5.2S,  v4.2S
+        ld1             {v5.S}[1],  [x1]
+        ext             v6.8B,  v4.8B,  v5.8B,  #1
+        ext             v7.8B,  v5.8B,  v4.8B,  #1
+        trn1            v4.4H,  v4.4H,  v6.4H
+        trn1            v5.4H,  v5.4H,  v7.4H
+        umull           v16.8H, v4.8B,  v0.8B
+        umlal           v16.8H, v5.8B,  v1.8B
+  .ifc \type,avg
+        ld1             {v18.H}[0], [x0], x2
+        ld1             {v18.H}[2], [x0]
+        sub             x0,  x0,  x2
+  .endif
+        rev64           v17.4S, v16.4S
+        add             v16.8H, v16.8H, v17.8H
+        rshrn           v16.8B, v16.8H, #6
+  .ifc \type,avg
+        urhadd          v16.8B, v16.8B, v18.8B
+  .endif
+        st1             {v16.H}[0], [x0], x2
+        st1             {v16.H}[2], [x0], x2
+        subs            w3,  w3,  #2
+        b.gt            1b
+        ret
+
+2:
+        ld1             {v16.H}[0], [x1], x2
+        ld1             {v16.H}[1], [x1], x2
+  .ifc \type,avg
+        ld1             {v18.H}[0], [x0], x2
+        ld1             {v18.H}[1], [x0]
+        sub             x0,  x0,  x2
+        urhadd          v16.8B, v16.8B, v18.8B
+  .endif
+        st1             {v16.H}[0], [x0], x2
+        st1             {v16.H}[1], [x0], x2
+        subs            w3,  w3,  #2
+        b.gt            2b
+        ret
+endfunc
+.endm
+
+        h264_chroma_mc8 put
+        h264_chroma_mc8 avg
+        h264_chroma_mc4 put
+        h264_chroma_mc4 avg
+        h264_chroma_mc2 put
+        h264_chroma_mc2 avg
+
+#if CONFIG_RV40_DECODER
+const   rv40bias
+        .short           0, 16, 32, 16
+        .short          32, 28, 32, 28
+        .short           0, 32, 16, 32
+        .short          32, 28, 32, 28
+endconst
+
+        h264_chroma_mc8 put, rv40
+        h264_chroma_mc8 avg, rv40
+        h264_chroma_mc4 put, rv40
+        h264_chroma_mc4 avg, rv40
+#endif
+
+#if CONFIG_VC1_DECODER
+        h264_chroma_mc8 put, vc1
+        h264_chroma_mc8 avg, vc1
+        h264_chroma_mc4 put, vc1
+        h264_chroma_mc4 avg, vc1
+#endif

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/h264dsp_init_aarch64.c

@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) 2010 Mans Rullgard <mans@mansr.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/aarch64/cpu.h"
+#include "libavcodec/h264dsp.h"
+
+void ff_h264_v_loop_filter_luma_neon(uint8_t *pix, int stride, int alpha,
+                                     int beta, int8_t *tc0);
+void ff_h264_h_loop_filter_luma_neon(uint8_t *pix, int stride, int alpha,
+                                     int beta, int8_t *tc0);
+void ff_h264_v_loop_filter_chroma_neon(uint8_t *pix, int stride, int alpha,
+                                       int beta, int8_t *tc0);
+void ff_h264_h_loop_filter_chroma_neon(uint8_t *pix, int stride, int alpha,
+                                       int beta, int8_t *tc0);
+
+void ff_weight_h264_pixels_16_neon(uint8_t *dst, int stride, int height,
+                                   int log2_den, int weight, int offset);
+void ff_weight_h264_pixels_8_neon(uint8_t *dst, int stride, int height,
+                                  int log2_den, int weight, int offset);
+void ff_weight_h264_pixels_4_neon(uint8_t *dst, int stride, int height,
+                                  int log2_den, int weight, int offset);
+
+void ff_biweight_h264_pixels_16_neon(uint8_t *dst, uint8_t *src, int stride,
+                                     int height, int log2_den, int weightd,
+                                     int weights, int offset);
+void ff_biweight_h264_pixels_8_neon(uint8_t *dst, uint8_t *src, int stride,
+                                    int height, int log2_den, int weightd,
+                                    int weights, int offset);
+void ff_biweight_h264_pixels_4_neon(uint8_t *dst, uint8_t *src, int stride,
+                                    int height, int log2_den, int weightd,
+                                    int weights, int offset);
+
+void ff_h264_idct_add_neon(uint8_t *dst, int16_t *block, int stride);
+void ff_h264_idct_dc_add_neon(uint8_t *dst, int16_t *block, int stride);
+void ff_h264_idct_add16_neon(uint8_t *dst, const int *block_offset,
+                             int16_t *block, int stride,
+                             const uint8_t nnzc[6*8]);
+void ff_h264_idct_add16intra_neon(uint8_t *dst, const int *block_offset,
+                                  int16_t *block, int stride,
+                                  const uint8_t nnzc[6*8]);
+void ff_h264_idct_add8_neon(uint8_t **dest, const int *block_offset,
+                            int16_t *block, int stride,
+                            const uint8_t nnzc[6*8]);
+
+void ff_h264_idct8_add_neon(uint8_t *dst, int16_t *block, int stride);
+void ff_h264_idct8_dc_add_neon(uint8_t *dst, int16_t *block, int stride);
+void ff_h264_idct8_add4_neon(uint8_t *dst, const int *block_offset,
+                             int16_t *block, int stride,
+                             const uint8_t nnzc[6*8]);
+
+av_cold void ff_h264dsp_init_aarch64(H264DSPContext *c, const int bit_depth,
+                                     const int chroma_format_idc)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags) && bit_depth == 8) {
+        c->h264_v_loop_filter_luma   = ff_h264_v_loop_filter_luma_neon;
+        c->h264_h_loop_filter_luma   = ff_h264_h_loop_filter_luma_neon;
+        c->h264_v_loop_filter_chroma = ff_h264_v_loop_filter_chroma_neon;
+        if (chroma_format_idc <= 1)
+        c->h264_h_loop_filter_chroma = ff_h264_h_loop_filter_chroma_neon;
+
+        c->weight_h264_pixels_tab[0] = ff_weight_h264_pixels_16_neon;
+        c->weight_h264_pixels_tab[1] = ff_weight_h264_pixels_8_neon;
+        c->weight_h264_pixels_tab[2] = ff_weight_h264_pixels_4_neon;
+
+        c->biweight_h264_pixels_tab[0] = ff_biweight_h264_pixels_16_neon;
+        c->biweight_h264_pixels_tab[1] = ff_biweight_h264_pixels_8_neon;
+        c->biweight_h264_pixels_tab[2] = ff_biweight_h264_pixels_4_neon;
+
+        c->h264_idct_add        = ff_h264_idct_add_neon;
+        c->h264_idct_dc_add     = ff_h264_idct_dc_add_neon;
+        c->h264_idct_add16      = ff_h264_idct_add16_neon;
+        c->h264_idct_add16intra = ff_h264_idct_add16intra_neon;
+        if (chroma_format_idc <= 1)
+            c->h264_idct_add8   = ff_h264_idct_add8_neon;
+        c->h264_idct8_add       = ff_h264_idct8_add_neon;
+        c->h264_idct8_dc_add    = ff_h264_idct8_dc_add_neon;
+        c->h264_idct8_add4      = ff_h264_idct8_add4_neon;
+    }
+}

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/h264dsp_neon.S

@@ -0,0 +1,498 @@
+/*
+ * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
+ * Copyright (c) 2013 Janne Grunau <janne-libav@jannau.net>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/aarch64/asm.S"
+#include "neon.S"
+
+.macro  h264_loop_filter_start
+        cmp             w2,  #0
+        ldr             w6,  [x4]
+        ccmp            w3,  #0, #0, ne
+        mov             v24.S[0], w6
+        and             w6,  w6,  w6,  lsl #16
+        b.eq            1f
+        ands            w6,  w6,  w6,  lsl #8
+        b.ge            2f
+1:
+        ret
+2:
+.endm
+
+.macro  h264_loop_filter_luma
+        dup             v22.16B, w2                     // alpha
+        uxtl            v24.8H,  v24.8B
+        uabd            v21.16B, v16.16B, v0.16B        // abs(p0 - q0)
+        uxtl            v24.4S,  v24.4H
+        uabd            v28.16B, v18.16B, v16.16B       // abs(p1 - p0)
+        sli             v24.8H,  v24.8H,  #8
+        uabd            v30.16B, v2.16B,  v0.16B        // abs(q1 - q0)
+        sli             v24.4S,  v24.4S,  #16
+        cmhi            v21.16B, v22.16B, v21.16B       // < alpha
+        dup             v22.16B, w3                     // beta
+        cmlt            v23.16B, v24.16B, #0
+        cmhi            v28.16B, v22.16B, v28.16B       // < beta
+        cmhi            v30.16B, v22.16B, v30.16B       // < beta
+        bic             v21.16B, v21.16B, v23.16B
+        uabd            v17.16B, v20.16B, v16.16B       // abs(p2 - p0)
+        and             v21.16B, v21.16B, v28.16B
+        uabd            v19.16B,  v4.16B,  v0.16B       // abs(q2 - q0)
+        cmhi            v17.16B, v22.16B, v17.16B       // < beta
+        and             v21.16B, v21.16B, v30.16B
+        cmhi            v19.16B, v22.16B, v19.16B       // < beta
+        and             v17.16B, v17.16B, v21.16B
+        and             v19.16B, v19.16B, v21.16B
+        and             v24.16B, v24.16B, v21.16B
+        urhadd          v28.16B, v16.16B,  v0.16B
+        sub             v21.16B, v24.16B, v17.16B
+        uqadd           v23.16B, v18.16B, v24.16B
+        uhadd           v20.16B, v20.16B, v28.16B
+        sub             v21.16B, v21.16B, v19.16B
+        uhadd           v28.16B,  v4.16B, v28.16B
+        umin            v23.16B, v23.16B, v20.16B
+        uqsub           v22.16B, v18.16B, v24.16B
+        uqadd           v4.16B,   v2.16B, v24.16B
+        umax            v23.16B, v23.16B, v22.16B
+        uqsub           v22.16B,  v2.16B, v24.16B
+        umin            v28.16B,  v4.16B, v28.16B
+        uxtl            v4.8H,    v0.8B
+        umax            v28.16B, v28.16B, v22.16B
+        uxtl2           v20.8H,   v0.16B
+        usubw           v4.8H,    v4.8H,  v16.8B
+        usubw2          v20.8H,  v20.8H,  v16.16B
+        shl             v4.8H,    v4.8H,  #2
+        shl             v20.8H,  v20.8H,  #2
+        uaddw           v4.8H,    v4.8H,  v18.8B
+        uaddw2          v20.8H,  v20.8H,  v18.16B
+        usubw           v4.8H,    v4.8H,   v2.8B
+        usubw2          v20.8H,  v20.8H,   v2.16B
+        rshrn           v4.8B,    v4.8H,  #3
+        rshrn2          v4.16B,  v20.8H,  #3
+        bsl             v17.16B, v23.16B, v18.16B
+        bsl             v19.16B, v28.16B,  v2.16B
+        neg             v23.16B, v21.16B
+        uxtl            v28.8H,  v16.8B
+        smin            v4.16B,   v4.16B, v21.16B
+        uxtl2           v21.8H,  v16.16B
+        smax            v4.16B,   v4.16B, v23.16B
+        uxtl            v22.8H,   v0.8B
+        uxtl2           v24.8H,   v0.16B
+        saddw           v28.8H,  v28.8H,  v4.8B
+        saddw2          v21.8H,  v21.8H,  v4.16B
+        ssubw           v22.8H,  v22.8H,  v4.8B
+        ssubw2          v24.8H,  v24.8H,  v4.16B
+        sqxtun          v16.8B,  v28.8H
+        sqxtun2         v16.16B, v21.8H
+        sqxtun          v0.8B,   v22.8H
+        sqxtun2         v0.16B,  v24.8H
+.endm
+
+function ff_h264_v_loop_filter_luma_neon, export=1
+        h264_loop_filter_start
+        sxtw            x1,  w1
+
+        ld1             {v0.16B},  [x0], x1
+        ld1             {v2.16B},  [x0], x1
+        ld1             {v4.16B},  [x0], x1
+        sub             x0,  x0,  x1, lsl #2
+        sub             x0,  x0,  x1, lsl #1
+        ld1             {v20.16B},  [x0], x1
+        ld1             {v18.16B},  [x0], x1
+        ld1             {v16.16B},  [x0], x1
+
+        h264_loop_filter_luma
+
+        sub             x0,  x0,  x1, lsl #1
+        st1             {v17.16B},  [x0], x1
+        st1             {v16.16B}, [x0], x1
+        st1             {v0.16B},  [x0], x1
+        st1             {v19.16B}, [x0]
+
+        ret
+endfunc
+
+function ff_h264_h_loop_filter_luma_neon, export=1
+        h264_loop_filter_start
+
+        sub             x0,  x0,  #4
+        ld1             {v6.8B},  [x0], x1
+        ld1             {v20.8B}, [x0], x1
+        ld1             {v18.8B}, [x0], x1
+        ld1             {v16.8B}, [x0], x1
+        ld1             {v0.8B},  [x0], x1
+        ld1             {v2.8B},  [x0], x1
+        ld1             {v4.8B},  [x0], x1
+        ld1             {v26.8B}, [x0], x1
+        ld1             {v6.D}[1],  [x0], x1
+        ld1             {v20.D}[1], [x0], x1
+        ld1             {v18.D}[1], [x0], x1
+        ld1             {v16.D}[1], [x0], x1
+        ld1             {v0.D}[1],  [x0], x1
+        ld1             {v2.D}[1],  [x0], x1
+        ld1             {v4.D}[1],  [x0], x1
+        ld1             {v26.D}[1], [x0], x1
+
+        transpose_8x16B v6, v20, v18, v16, v0, v2, v4, v26, v21, v23
+
+        h264_loop_filter_luma
+
+        transpose_4x16B v17, v16, v0, v19, v21, v23, v25, v27
+
+        sub             x0,  x0,  x1, lsl #4
+        add             x0,  x0,  #2
+        st1             {v17.S}[0],  [x0], x1
+        st1             {v16.S}[0], [x0], x1
+        st1             {v0.S}[0],  [x0], x1
+        st1             {v19.S}[0], [x0], x1
+        st1             {v17.S}[1],  [x0], x1
+        st1             {v16.S}[1], [x0], x1
+        st1             {v0.S}[1],  [x0], x1
+        st1             {v19.S}[1], [x0], x1
+        st1             {v17.S}[2],  [x0], x1
+        st1             {v16.S}[2], [x0], x1
+        st1             {v0.S}[2],  [x0], x1
+        st1             {v19.S}[2], [x0], x1
+        st1             {v17.S}[3],  [x0], x1
+        st1             {v16.S}[3], [x0], x1
+        st1             {v0.S}[3],  [x0], x1
+        st1             {v19.S}[3], [x0], x1
+
+        ret
+endfunc
+
+.macro  h264_loop_filter_chroma
+        dup             v22.8B, w2              // alpha
+        uxtl            v24.8H, v24.8B
+        uabd            v26.8B, v16.8B, v0.8B   // abs(p0 - q0)
+        uxtl            v4.8H,  v0.8B
+        uabd            v28.8B, v18.8B, v16.8B  // abs(p1 - p0)
+        usubw           v4.8H,  v4.8H,  v16.8B
+        sli             v24.8H, v24.8H, #8
+        shl             v4.8H,  v4.8H,  #2
+        uabd            v30.8B, v2.8B,  v0.8B   // abs(q1 - q0)
+        uaddw           v4.8H,  v4.8H,  v18.8B
+        cmhi            v26.8B, v22.8B, v26.8B  // < alpha
+        usubw           v4.8H,  v4.8H,  v2.8B
+        dup             v22.8B, w3              // beta
+        rshrn           v4.8B,  v4.8H,  #3
+        cmhi            v28.8B, v22.8B, v28.8B  // < beta
+        cmhi            v30.8B, v22.8B, v30.8B  // < beta
+        smin            v4.8B,  v4.8B,  v24.8B
+        neg             v25.8B, v24.8B
+        and             v26.8B, v26.8B, v28.8B
+        smax            v4.8B,  v4.8B,  v25.8B
+        and             v26.8B, v26.8B, v30.8B
+        uxtl            v22.8H, v0.8B
+        and             v4.8B,  v4.8B,  v26.8B
+        uxtl            v28.8H, v16.8B
+        saddw           v28.8H, v28.8H, v4.8B
+        ssubw           v22.8H, v22.8H, v4.8B
+        sqxtun          v16.8B, v28.8H
+        sqxtun          v0.8B,  v22.8H
+.endm
+
+function ff_h264_v_loop_filter_chroma_neon, export=1
+        h264_loop_filter_start
+
+        sub             x0,  x0,  x1, lsl #1
+        ld1             {v18.8B}, [x0], x1
+        ld1             {v16.8B}, [x0], x1
+        ld1             {v0.8B},  [x0], x1
+        ld1             {v2.8B},  [x0]
+
+        h264_loop_filter_chroma
+
+        sub             x0,  x0,  x1, lsl #1
+        st1             {v16.8B}, [x0], x1
+        st1             {v0.8B},  [x0], x1
+
+        ret
+endfunc
+
+function ff_h264_h_loop_filter_chroma_neon, export=1
+        h264_loop_filter_start
+
+        sub             x0,  x0,  #2
+        ld1             {v18.S}[0], [x0], x1
+        ld1             {v16.S}[0], [x0], x1
+        ld1             {v0.S}[0],  [x0], x1
+        ld1             {v2.S}[0],  [x0], x1
+        ld1             {v18.S}[1], [x0], x1
+        ld1             {v16.S}[1], [x0], x1
+        ld1             {v0.S}[1],  [x0], x1
+        ld1             {v2.S}[1],  [x0], x1
+
+        transpose_4x8B  v18, v16, v0, v2, v28, v29, v30, v31
+
+        h264_loop_filter_chroma
+
+        transpose_4x8B  v18, v16, v0, v2, v28, v29, v30, v31
+
+        sub             x0,  x0,  x1, lsl #3
+        st1             {v18.S}[0], [x0], x1
+        st1             {v16.S}[0], [x0], x1
+        st1             {v0.S}[0],  [x0], x1
+        st1             {v2.S}[0],  [x0], x1
+        st1             {v18.S}[1], [x0], x1
+        st1             {v16.S}[1], [x0], x1
+        st1             {v0.S}[1],  [x0], x1
+        st1             {v2.S}[1],  [x0], x1
+
+        ret
+endfunc
+
+.macro  biweight_16     macs, macd
+        dup             v0.16B,  w5
+        dup             v1.16B,  w6
+        mov             v4.16B,  v16.16B
+        mov             v6.16B,  v16.16B
+1:      subs            w3,  w3,  #2
+        ld1             {v20.16B}, [x0], x2
+        \macd           v4.8H,   v0.8B,  v20.8B
+        \macd\()2       v6.8H,   v0.16B, v20.16B
+        ld1             {v22.16B}, [x1], x2
+        \macs           v4.8H,   v1.8B,  v22.8B
+        \macs\()2       v6.8H,   v1.16B, v22.16B
+        mov             v24.16B, v16.16B
+        ld1             {v28.16B}, [x0], x2
+        mov             v26.16B, v16.16B
+        \macd           v24.8H,  v0.8B,  v28.8B
+        \macd\()2       v26.8H,  v0.16B, v28.16B
+        ld1             {v30.16B}, [x1], x2
+        \macs           v24.8H,  v1.8B,  v30.8B
+        \macs\()2       v26.8H,  v1.16B, v30.16B
+        sshl            v4.8H,   v4.8H,  v18.8H
+        sshl            v6.8H,   v6.8H,  v18.8H
+        sqxtun          v4.8B,   v4.8H
+        sqxtun2         v4.16B,  v6.8H
+        sshl            v24.8H,  v24.8H, v18.8H
+        sshl            v26.8H,  v26.8H, v18.8H
+        sqxtun          v24.8B,  v24.8H
+        sqxtun2         v24.16B, v26.8H
+        mov             v6.16B,  v16.16B
+        st1             {v4.16B},  [x7], x2
+        mov             v4.16B,  v16.16B
+        st1             {v24.16B}, [x7], x2
+        b.ne            1b
+        ret
+.endm
+
+.macro  biweight_8      macs, macd
+        dup             v0.8B,  w5
+        dup             v1.8B,  w6
+        mov             v2.16B,  v16.16B
+        mov             v20.16B, v16.16B
+1:      subs            w3,  w3,  #2
+        ld1             {v4.8B}, [x0], x2
+        \macd           v2.8H,  v0.8B,  v4.8B
+        ld1             {v5.8B}, [x1], x2
+        \macs           v2.8H,  v1.8B,  v5.8B
+        ld1             {v6.8B}, [x0], x2
+        \macd           v20.8H, v0.8B,  v6.8B
+        ld1             {v7.8B}, [x1], x2
+        \macs           v20.8H, v1.8B,  v7.8B
+        sshl            v2.8H,  v2.8H,  v18.8H
+        sqxtun          v2.8B,  v2.8H
+        sshl            v20.8H, v20.8H, v18.8H
+        sqxtun          v4.8B,  v20.8H
+        mov             v20.16B, v16.16B
+        st1             {v2.8B}, [x7], x2
+        mov             v2.16B,  v16.16B
+        st1             {v4.8B}, [x7], x2
+        b.ne            1b
+        ret
+.endm
+
+.macro  biweight_4      macs, macd
+        dup             v0.8B,  w5
+        dup             v1.8B,  w6
+        mov             v2.16B, v16.16B
+        mov             v20.16B,v16.16B
+1:      subs            w3,  w3,  #4
+        ld1             {v4.S}[0], [x0], x2
+        ld1             {v4.S}[1], [x0], x2
+        \macd           v2.8H,  v0.8B,  v4.8B
+        ld1             {v5.S}[0], [x1], x2
+        ld1             {v5.S}[1], [x1], x2
+        \macs           v2.8H,  v1.8B,  v5.8B
+        b.lt            2f
+        ld1             {v6.S}[0], [x0], x2
+        ld1             {v6.S}[1], [x0], x2
+        \macd           v20.8H, v0.8B,  v6.8B
+        ld1             {v7.S}[0], [x1], x2
+        ld1             {v7.S}[1], [x1], x2
+        \macs           v20.8H, v1.8B,  v7.8B
+        sshl            v2.8H,  v2.8H,  v18.8H
+        sqxtun          v2.8B,  v2.8H
+        sshl            v20.8H, v20.8H, v18.8H
+        sqxtun          v4.8B,  v20.8H
+        mov             v20.16B, v16.16B
+        st1             {v2.S}[0], [x7], x2
+        st1             {v2.S}[1], [x7], x2
+        mov             v2.16B,  v16.16B
+        st1             {v4.S}[0], [x7], x2
+        st1             {v4.S}[1], [x7], x2
+        b.ne            1b
+        ret
+2:      sshl            v2.8H,  v2.8H,  v18.8H
+        sqxtun          v2.8B,  v2.8H
+        st1             {v2.S}[0], [x7], x2
+        st1             {v2.S}[1], [x7], x2
+        ret
+.endm
+
+.macro  biweight_func   w
+function ff_biweight_h264_pixels_\w\()_neon, export=1
+        sxtw            x2,  w2
+        lsr             w8,  w5,  #31
+        add             w7,  w7,  #1
+        eor             w8,  w8,  w6,  lsr #30
+        orr             w7,  w7,  #1
+        dup             v18.8H,   w4
+        lsl             w7,  w7,  w4
+        not             v18.16B,  v18.16B
+        dup             v16.8H,   w7
+        mov             x7,  x0
+        cbz             w8,  10f
+        subs            w8,  w8,  #1
+        b.eq            20f
+        subs            w8,  w8,  #1
+        b.eq            30f
+        b               40f
+10:     biweight_\w     umlal, umlal
+20:     neg             w5, w5
+        biweight_\w     umlal, umlsl
+30:     neg             w5, w5
+        neg             w6, w6
+        biweight_\w     umlsl, umlsl
+40:     neg             w6, w6
+        biweight_\w     umlsl, umlal
+endfunc
+.endm
+
+        biweight_func   16
+        biweight_func   8
+        biweight_func   4
+
+.macro  weight_16       add
+        dup             v0.16B,  w4
+1:      subs            w2,  w2,  #2
+        ld1             {v20.16B}, [x0], x1
+        umull           v4.8H,   v0.8B,  v20.8B
+        umull2          v6.8H,   v0.16B, v20.16B
+        ld1             {v28.16B}, [x0], x1
+        umull           v24.8H,  v0.8B,  v28.8B
+        umull2          v26.8H,  v0.16B, v28.16B
+        \add            v4.8H,   v16.8H, v4.8H
+        srshl           v4.8H,   v4.8H,  v18.8H
+        \add            v6.8H,   v16.8H, v6.8H
+        srshl           v6.8H,   v6.8H,  v18.8H
+        sqxtun          v4.8B,   v4.8H
+        sqxtun2         v4.16B,  v6.8H
+        \add            v24.8H,  v16.8H, v24.8H
+        srshl           v24.8H,  v24.8H, v18.8H
+        \add            v26.8H,  v16.8H, v26.8H
+        srshl           v26.8H,  v26.8H, v18.8H
+        sqxtun          v24.8B,  v24.8H
+        sqxtun2         v24.16B, v26.8H
+        st1             {v4.16B},  [x5], x1
+        st1             {v24.16B}, [x5], x1
+        b.ne            1b
+        ret
+.endm
+
+.macro  weight_8        add
+        dup             v0.8B,  w4
+1:      subs            w2,  w2,  #2
+        ld1             {v4.8B}, [x0], x1
+        umull           v2.8H,  v0.8B,  v4.8B
+        ld1             {v6.8B}, [x0], x1
+        umull           v20.8H, v0.8B,  v6.8B
+        \add            v2.8H,  v16.8H,  v2.8H
+        srshl           v2.8H,  v2.8H,  v18.8H
+        sqxtun          v2.8B,  v2.8H
+        \add            v20.8H, v16.8H,  v20.8H
+        srshl           v20.8H, v20.8H, v18.8H
+        sqxtun          v4.8B,  v20.8H
+        st1             {v2.8B}, [x5], x1
+        st1             {v4.8B}, [x5], x1
+        b.ne            1b
+        ret
+.endm
+
+.macro  weight_4        add
+        dup             v0.8B,  w4
+1:      subs            w2,  w2,  #4
+        ld1             {v4.S}[0], [x0], x1
+        ld1             {v4.S}[1], [x0], x1
+        umull           v2.8H,  v0.8B,  v4.8B
+        b.lt            2f
+        ld1             {v6.S}[0], [x0], x1
+        ld1             {v6.S}[1], [x0], x1
+        umull           v20.8H, v0.8B,  v6.8B
+        \add            v2.8H,  v16.8H,  v2.8H
+        srshl           v2.8H,  v2.8H,  v18.8H
+        sqxtun          v2.8B,  v2.8H
+        \add            v20.8H, v16.8H,  v20.8H
+        srshl           v20.8H, v20.8h, v18.8H
+        sqxtun          v4.8B,  v20.8H
+        st1             {v2.S}[0], [x5], x1
+        st1             {v2.S}[1], [x5], x1
+        st1             {v4.S}[0], [x5], x1
+        st1             {v4.S}[1], [x5], x1
+        b.ne            1b
+        ret
+2:      \add            v2.8H,  v16.8H,  v2.8H
+        srshl           v2.8H,  v2.8H,  v18.8H
+        sqxtun          v2.8B,  v2.8H
+        st1             {v2.S}[0], [x5], x1
+        st1             {v2.S}[1], [x5], x1
+        ret
+.endm
+
+.macro  weight_func     w
+function ff_weight_h264_pixels_\w\()_neon, export=1
+        sxtw            x1,  w1
+        cmp             w3,  #1
+        mov             w6,  #1
+        lsl             w5,  w5,  w3
+        dup             v16.8H,  w5
+        mov             x5,  x0
+        b.le            20f
+        sub             w6,  w6,  w3
+        dup             v18.8H,  w6
+        cmp             w4, #0
+        b.lt            10f
+        weight_\w       shadd
+10:     neg             w4,  w4
+        weight_\w       shsub
+20:     neg             w6,  w3
+        dup             v18.8H,  w6
+        cmp             w4,  #0
+        b.lt            10f
+        weight_\w       add
+10:     neg             w4,  w4
+        weight_\w       sub
+endfunc
+.endm
+
+        weight_func     16
+        weight_func     8
+        weight_func     4

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/h264idct_neon.S

@@ -0,0 +1,408 @@
+/*
+ * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
+ * Copyright (c) 2013 Janne Grunau <janne-libav@jannau.net>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/aarch64/asm.S"
+#include "neon.S"
+
+function ff_h264_idct_add_neon, export=1
+        ld1             {v0.4H, v1.4H, v2.4H, v3.4H},  [x1]
+        sxtw            x2,     w2
+        movi            v30.8H, #0
+
+        add             v4.4H,  v0.4H,  v2.4H
+        sshr            v16.4H, v1.4H,  #1
+        st1             {v30.8H},    [x1], #16
+        sshr            v17.4H, v3.4H,  #1
+        st1             {v30.8H},    [x1], #16
+        sub             v5.4H,  v0.4H,  v2.4H
+        add             v6.4H,  v1.4H,  v17.4H
+        sub             v7.4H,  v16.4H, v3.4H
+        add             v0.4H,  v4.4H,  v6.4H
+        add             v1.4H,  v5.4H,  v7.4H
+        sub             v2.4H,  v4.4H,  v6.4H
+        sub             v3.4H,  v5.4H,  v7.4H
+
+        transpose_4x4H  v0, v1, v2, v3, v4, v5, v6, v7
+
+        add             v4.4H,  v0.4H,  v3.4H
+        ld1             {v18.S}[0], [x0], x2
+        sshr            v16.4H,  v2.4H,  #1
+        sshr            v17.4H,  v1.4H,  #1
+        ld1             {v19.S}[1], [x0], x2
+        sub             v5.4H,  v0.4H,  v3.4H
+        ld1             {v18.S}[1], [x0], x2
+        add             v6.4H,  v16.4H, v1.4H
+        ins             v4.D[1],  v5.D[0]
+        sub             v7.4H,  v2.4H,  v17.4H
+        ld1             {v19.S}[0], [x0], x2
+        ins             v6.D[1],  v7.D[0]
+        sub             x0,  x0,  x2, lsl #2
+        add             v0.8H,  v4.8H,  v6.8H
+        sub             v1.8H,  v4.8H,  v6.8H
+
+        srshr           v0.8H,  v0.8H,  #6
+        srshr           v1.8H,  v1.8H,  #6
+
+        uaddw           v0.8H,  v0.8H,  v18.8B
+        uaddw           v1.8H,  v1.8H,  v19.8B
+
+        sqxtun          v0.8B, v0.8H
+        sqxtun          v1.8B, v1.8H
+
+        st1             {v0.S}[0],  [x0], x2
+        st1             {v1.S}[1],  [x0], x2
+        st1             {v0.S}[1],  [x0], x2
+        st1             {v1.S}[0],  [x0], x2
+
+        sub             x1,  x1,  #32
+        ret
+endfunc
+
+function ff_h264_idct_dc_add_neon, export=1
+        sxtw            x2,  w2
+        mov             w3,       #0
+        ld1r            {v2.8H},  [x1]
+        strh            w3,       [x1]
+        srshr           v2.8H,  v2.8H,  #6
+        ld1             {v0.S}[0],  [x0], x2
+        ld1             {v0.S}[1],  [x0], x2
+        uaddw           v3.8H,  v2.8H,  v0.8B
+        ld1             {v1.S}[0],  [x0], x2
+        ld1             {v1.S}[1],  [x0], x2
+        uaddw           v4.8H,  v2.8H,  v1.8B
+        sqxtun          v0.8B,  v3.8H
+        sqxtun          v1.8B,  v4.8H
+        sub             x0,  x0,  x2, lsl #2
+        st1             {v0.S}[0],  [x0], x2
+        st1             {v0.S}[1],  [x0], x2
+        st1             {v1.S}[0],  [x0], x2
+        st1             {v1.S}[1],  [x0], x2
+        ret
+endfunc
+
+function ff_h264_idct_add16_neon, export=1
+        mov             x12, x30
+        mov             x6,  x0         // dest
+        mov             x5,  x1         // block_offset
+        mov             x1,  x2         // block
+        mov             w9,  w3         // stride
+        movrel          x7,  scan8
+        mov             x10, #16
+        movrel          x13, X(ff_h264_idct_dc_add_neon)
+        movrel          x14, X(ff_h264_idct_add_neon)
+1:      mov             w2,  w9
+        ldrb            w3,  [x7], #1
+        ldrsw           x0,  [x5], #4
+        ldrb            w3,  [x4,  w3,  uxtw]
+        subs            w3,  w3,  #1
+        b.lt            2f
+        ldrsh           w3,  [x1]
+        add             x0,  x0,  x6
+        ccmp            w3,  #0,  #4,  eq
+        csel            x15, x13, x14, ne
+        blr             x15
+2:      subs            x10, x10, #1
+        add             x1,  x1,  #32
+        b.ne            1b
+        ret             x12
+endfunc
+
+function ff_h264_idct_add16intra_neon, export=1
+        mov             x12, x30
+        mov             x6,  x0         // dest
+        mov             x5,  x1         // block_offset
+        mov             x1,  x2         // block
+        mov             w9,  w3         // stride
+        movrel          x7,  scan8
+        mov             x10, #16
+        movrel          x13, X(ff_h264_idct_dc_add_neon)
+        movrel          x14, X(ff_h264_idct_add_neon)
+1:      mov             w2,  w9
+        ldrb            w3,  [x7], #1
+        ldrsw           x0,  [x5], #4
+        ldrb            w3,  [x4,  w3,  uxtw]
+        add             x0,  x0,  x6
+        cmp             w3,  #0
+        ldrsh           w3,  [x1]
+        csel            x15, x13, x14, eq
+        ccmp            w3,  #0,  #0,  eq
+        b.eq            2f
+        blr             x15
+2:      subs            x10, x10, #1
+        add             x1,  x1,  #32
+        b.ne            1b
+        ret             x12
+endfunc
+
+function ff_h264_idct_add8_neon, export=1
+        sub             sp,  sp, #0x40
+        stp             x19, x20, [sp]
+        mov             x12, x30
+        ldp             x6,  x15, [x0]          // dest[0], dest[1]
+        add             x5,  x1,  #16*4         // block_offset
+        add             x9,  x2,  #16*32        // block
+        mov             w19, w3                 // stride
+        movrel          x13, X(ff_h264_idct_dc_add_neon)
+        movrel          x14, X(ff_h264_idct_add_neon)
+        movrel          x7,  scan8+16
+        mov             x10, #0
+        mov             x11, #16
+1:      mov             w2,  w19
+        ldrb            w3,  [x7, x10]          // scan8[i]
+        ldrsw           x0,  [x5, x10, lsl #2]  // block_offset[i]
+        ldrb            w3,  [x4, w3,  uxtw]    // nnzc[ scan8[i] ]
+        add             x0,  x0,  x6            // block_offset[i] + dst[j-1]
+        add             x1,  x9,  x10, lsl #5   // block + i * 16
+        cmp             w3,  #0
+        ldrsh           w3,  [x1]               // block[i*16]
+        csel            x20, x13, x14, eq
+        ccmp            w3,  #0,  #0,  eq
+        b.eq            2f
+        blr             x20
+2:      add             x10, x10, #1
+        cmp             x10, #4
+        csel            x10, x11, x10, eq     // mov x10, #16
+        csel            x6,  x15, x6,  eq
+        cmp             x10, #20
+        b.lt            1b
+        ldp             x19, x20, [sp]
+        add             sp,  sp,  #0x40
+        ret             x12
+endfunc
+
+.macro  idct8x8_cols    pass
+  .if \pass == 0
+        va      .req    v18
+        vb      .req    v30
+        sshr            v18.8H, v26.8H, #1
+        add             v16.8H, v24.8H, v28.8H
+        ld1             {v30.8H, v31.8H}, [x1]
+        st1             {v19.8H}, [x1],  #16
+        st1             {v19.8H}, [x1],  #16
+        sub             v17.8H,  v24.8H, v28.8H
+        sshr            v19.8H,  v30.8H, #1
+        sub             v18.8H,  v18.8H,  v30.8H
+        add             v19.8H,  v19.8H,  v26.8H
+  .else
+        va      .req    v30
+        vb      .req    v18
+        sshr            v30.8H, v26.8H, #1
+        sshr            v19.8H, v18.8H, #1
+        add             v16.8H, v24.8H, v28.8H
+        sub             v17.8H, v24.8H, v28.8H
+        sub             v30.8H, v30.8H, v18.8H
+        add             v19.8H, v19.8H, v26.8H
+  .endif
+        add             v26.8H, v17.8H, va.8H
+        sub             v28.8H, v17.8H, va.8H
+        add             v24.8H, v16.8H, v19.8H
+        sub             vb.8H,  v16.8H, v19.8H
+        sub             v16.8H, v29.8H, v27.8H
+        add             v17.8H, v31.8H, v25.8H
+        sub             va.8H,  v31.8H, v25.8H
+        add             v19.8H, v29.8H, v27.8H
+        sub             v16.8H, v16.8H, v31.8H
+        sub             v17.8H, v17.8H, v27.8H
+        add             va.8H,  va.8H,  v29.8H
+        add             v19.8H, v19.8H, v25.8H
+        sshr            v25.8H, v25.8H, #1
+        sshr            v27.8H, v27.8H, #1
+        sshr            v29.8H, v29.8H, #1
+        sshr            v31.8H, v31.8H, #1
+        sub             v16.8H, v16.8H, v31.8H
+        sub             v17.8H, v17.8H, v27.8H
+        add             va.8H,  va.8H,  v29.8H
+        add             v19.8H, v19.8H, v25.8H
+        sshr            v25.8H, v16.8H, #2
+        sshr            v27.8H, v17.8H, #2
+        sshr            v29.8H, va.8H,  #2
+        sshr            v31.8H, v19.8H, #2
+        sub             v19.8H, v19.8H, v25.8H
+        sub             va.8H,  v27.8H, va.8H
+        add             v17.8H, v17.8H, v29.8H
+        add             v16.8H, v16.8H, v31.8H
+  .if \pass == 0
+        sub             v31.8H, v24.8H, v19.8H
+        add             v24.8H, v24.8H, v19.8H
+        add             v25.8H, v26.8H, v18.8H
+        sub             v18.8H, v26.8H, v18.8H
+        add             v26.8H, v28.8H, v17.8H
+        add             v27.8H, v30.8H, v16.8H
+        sub             v29.8H, v28.8H, v17.8H
+        sub             v28.8H, v30.8H, v16.8H
+  .else
+        sub             v31.8H, v24.8H, v19.8H
+        add             v24.8H, v24.8H, v19.8H
+        add             v25.8H, v26.8H, v30.8H
+        sub             v30.8H, v26.8H, v30.8H
+        add             v26.8H, v28.8H, v17.8H
+        sub             v29.8H, v28.8H, v17.8H
+        add             v27.8H, v18.8H, v16.8H
+        sub             v28.8H, v18.8H, v16.8H
+  .endif
+        .unreq          va
+        .unreq          vb
+.endm
+
+function ff_h264_idct8_add_neon, export=1
+        movi            v19.8H,   #0
+        ld1             {v24.8H, v25.8H}, [x1]
+        st1             {v19.8H},  [x1],   #16
+        st1             {v19.8H},  [x1],   #16
+        ld1             {v26.8H, v27.8H}, [x1]
+        st1             {v19.8H},  [x1],   #16
+        st1             {v19.8H},  [x1],   #16
+        ld1             {v28.8H, v29.8H}, [x1]
+        st1             {v19.8H},  [x1],   #16
+        st1             {v19.8H},  [x1],   #16
+
+        idct8x8_cols    0
+        transpose_8x8H  v24, v25, v26, v27, v28, v29, v18, v31, v6, v7
+        idct8x8_cols    1
+
+        mov             x3,  x0
+        srshr           v24.8H, v24.8H, #6
+        ld1             {v0.8B},     [x0], x2
+        srshr           v25.8H, v25.8H, #6
+        ld1             {v1.8B},     [x0], x2
+        srshr           v26.8H, v26.8H, #6
+        ld1             {v2.8B},     [x0], x2
+        srshr           v27.8H, v27.8H, #6
+        ld1             {v3.8B},     [x0], x2
+        srshr           v28.8H, v28.8H, #6
+        ld1             {v4.8B},     [x0], x2
+        srshr           v29.8H, v29.8H, #6
+        ld1             {v5.8B},     [x0], x2
+        srshr           v30.8H, v30.8H, #6
+        ld1             {v6.8B},     [x0], x2
+        srshr           v31.8H, v31.8H, #6
+        ld1             {v7.8B},     [x0], x2
+        uaddw           v24.8H, v24.8H, v0.8B
+        uaddw           v25.8H, v25.8H, v1.8B
+        uaddw           v26.8H, v26.8H, v2.8B
+        sqxtun          v0.8B,  v24.8H
+        uaddw           v27.8H, v27.8H, v3.8B
+        sqxtun          v1.8B,  v25.8H
+        uaddw           v28.8H, v28.8H, v4.8B
+        sqxtun          v2.8B,  v26.8H
+        st1             {v0.8B},     [x3], x2
+        uaddw           v29.8H, v29.8H, v5.8B
+        sqxtun          v3.8B,  v27.8H
+        st1             {v1.8B},     [x3], x2
+        uaddw           v30.8H, v30.8H, v6.8B
+        sqxtun          v4.8B,  v28.8H
+        st1             {v2.8B},     [x3], x2
+        uaddw           v31.8H, v31.8H, v7.8B
+        sqxtun          v5.8B,  v29.8H
+        st1             {v3.8B},     [x3], x2
+        sqxtun          v6.8B,  v30.8H
+        sqxtun          v7.8B,  v31.8H
+        st1             {v4.8B},     [x3], x2
+        st1             {v5.8B},     [x3], x2
+        st1             {v6.8B},     [x3], x2
+        st1             {v7.8B},     [x3], x2
+
+        sub             x1,  x1,  #128
+        ret
+endfunc
+
+function ff_h264_idct8_dc_add_neon, export=1
+        mov             w3,       #0
+        sxtw            x2,       w2
+        ld1r            {v31.8H}, [x1]
+        strh            w3,       [x1]
+        ld1             {v0.8B},  [x0], x2
+        srshr           v31.8H, v31.8H, #6
+        ld1             {v1.8B},     [x0], x2
+        ld1             {v2.8B},     [x0], x2
+        uaddw           v24.8H, v31.8H, v0.8B
+        ld1             {v3.8B},     [x0], x2
+        uaddw           v25.8H, v31.8H, v1.8B
+        ld1             {v4.8B},     [x0], x2
+        uaddw           v26.8H, v31.8H, v2.8B
+        ld1             {v5.8B},     [x0], x2
+        uaddw           v27.8H, v31.8H, v3.8B
+        ld1             {v6.8B},     [x0], x2
+        uaddw           v28.8H, v31.8H, v4.8B
+        ld1             {v7.8B},     [x0], x2
+        uaddw           v29.8H, v31.8H, v5.8B
+        uaddw           v30.8H, v31.8H, v6.8B
+        uaddw           v31.8H, v31.8H, v7.8B
+        sqxtun          v0.8B,  v24.8H
+        sqxtun          v1.8B,  v25.8H
+        sqxtun          v2.8B,  v26.8H
+        sqxtun          v3.8B,  v27.8H
+        sub             x0,  x0,  x2, lsl #3
+        st1             {v0.8B},     [x0], x2
+        sqxtun          v4.8B,  v28.8H
+        st1             {v1.8B},     [x0], x2
+        sqxtun          v5.8B,  v29.8H
+        st1             {v2.8B},     [x0], x2
+        sqxtun          v6.8B,  v30.8H
+        st1             {v3.8B},     [x0], x2
+        sqxtun          v7.8B,  v31.8H
+        st1             {v4.8B},     [x0], x2
+        st1             {v5.8B},     [x0], x2
+        st1             {v6.8B},     [x0], x2
+        st1             {v7.8B},     [x0], x2
+        ret
+endfunc
+
+function ff_h264_idct8_add4_neon, export=1
+        mov             x12, x30
+        mov             x6,  x0
+        mov             x5,  x1
+        mov             x1,  x2
+        mov             w2,  w3
+        movrel          x7,  scan8
+        mov             w10, #16
+        movrel          x13, X(ff_h264_idct8_dc_add_neon)
+        movrel          x14, X(ff_h264_idct8_add_neon)
+1:      ldrb            w9,  [x7], #4
+        ldrsw           x0,  [x5], #16
+        ldrb            w9,  [x4, w9, UXTW]
+        subs            w9,  w9,  #1
+        b.lt            2f
+        ldrsh           w11,  [x1]
+        add             x0,  x6,  x0
+        ccmp            w11, #0,  #4,  eq
+        csel            x15, x13, x14, ne
+        blr             x15
+2:      subs            w10, w10, #4
+        add             x1,  x1,  #128
+        b.ne            1b
+        ret             x12
+endfunc
+
+const   scan8
+        .byte           4+ 1*8, 5+ 1*8, 4+ 2*8, 5+ 2*8
+        .byte           6+ 1*8, 7+ 1*8, 6+ 2*8, 7+ 2*8
+        .byte           4+ 3*8, 5+ 3*8, 4+ 4*8, 5+ 4*8
+        .byte           6+ 3*8, 7+ 3*8, 6+ 4*8, 7+ 4*8
+        .byte           4+ 6*8, 5+ 6*8, 4+ 7*8, 5+ 7*8
+        .byte           6+ 6*8, 7+ 6*8, 6+ 7*8, 7+ 7*8
+        .byte           4+ 8*8, 5+ 8*8, 4+ 9*8, 5+ 9*8
+        .byte           6+ 8*8, 7+ 8*8, 6+ 9*8, 7+ 9*8
+        .byte           4+11*8, 5+11*8, 4+12*8, 5+12*8
+        .byte           6+11*8, 7+11*8, 6+12*8, 7+12*8
+        .byte           4+13*8, 5+13*8, 4+14*8, 5+14*8
+        .byte           6+13*8, 7+13*8, 6+14*8, 7+14*8
+endconst

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/h264pred_init.c

@@ -0,0 +1,93 @@
+/*
+ * Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/aarch64/cpu.h"
+#include "libavcodec/avcodec.h"
+#include "libavcodec/h264pred.h"
+
+void ff_pred16x16_vert_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred16x16_hor_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred16x16_plane_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred16x16_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred16x16_128_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred16x16_left_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred16x16_top_dc_neon(uint8_t *src, ptrdiff_t stride);
+
+void ff_pred8x8_vert_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_hor_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_plane_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_128_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_left_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_top_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_l0t_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_0lt_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_l00_dc_neon(uint8_t *src, ptrdiff_t stride);
+void ff_pred8x8_0l0_dc_neon(uint8_t *src, ptrdiff_t stride);
+
+static av_cold void h264_pred_init_neon(H264PredContext *h, int codec_id,
+                                        const int bit_depth,
+                                        const int chroma_format_idc)
+{
+    const int high_depth = bit_depth > 8;
+
+    if (high_depth)
+        return;
+
+    if (chroma_format_idc <= 1) {
+        h->pred8x8[VERT_PRED8x8     ] = ff_pred8x8_vert_neon;
+        h->pred8x8[HOR_PRED8x8      ] = ff_pred8x8_hor_neon;
+        if (codec_id != AV_CODEC_ID_VP7 && codec_id != AV_CODEC_ID_VP8)
+            h->pred8x8[PLANE_PRED8x8] = ff_pred8x8_plane_neon;
+        h->pred8x8[DC_128_PRED8x8   ] = ff_pred8x8_128_dc_neon;
+        if (codec_id != AV_CODEC_ID_RV40 && codec_id != AV_CODEC_ID_VP7 &&
+            codec_id != AV_CODEC_ID_VP8) {
+            h->pred8x8[DC_PRED8x8     ] = ff_pred8x8_dc_neon;
+            h->pred8x8[LEFT_DC_PRED8x8] = ff_pred8x8_left_dc_neon;
+            h->pred8x8[TOP_DC_PRED8x8 ] = ff_pred8x8_top_dc_neon;
+            h->pred8x8[ALZHEIMER_DC_L0T_PRED8x8] = ff_pred8x8_l0t_dc_neon;
+            h->pred8x8[ALZHEIMER_DC_0LT_PRED8x8] = ff_pred8x8_0lt_dc_neon;
+            h->pred8x8[ALZHEIMER_DC_L00_PRED8x8] = ff_pred8x8_l00_dc_neon;
+            h->pred8x8[ALZHEIMER_DC_0L0_PRED8x8] = ff_pred8x8_0l0_dc_neon;
+        }
+    }
+
+    h->pred16x16[DC_PRED8x8     ] = ff_pred16x16_dc_neon;
+    h->pred16x16[VERT_PRED8x8   ] = ff_pred16x16_vert_neon;
+    h->pred16x16[HOR_PRED8x8    ] = ff_pred16x16_hor_neon;
+    h->pred16x16[LEFT_DC_PRED8x8] = ff_pred16x16_left_dc_neon;
+    h->pred16x16[TOP_DC_PRED8x8 ] = ff_pred16x16_top_dc_neon;
+    h->pred16x16[DC_128_PRED8x8 ] = ff_pred16x16_128_dc_neon;
+    if (codec_id != AV_CODEC_ID_SVQ3 && codec_id != AV_CODEC_ID_RV40 &&
+        codec_id != AV_CODEC_ID_VP7 && codec_id != AV_CODEC_ID_VP8)
+        h->pred16x16[PLANE_PRED8x8  ] = ff_pred16x16_plane_neon;
+}
+
+av_cold void ff_h264_pred_init_aarch64(H264PredContext *h, int codec_id,
+                                       int bit_depth, const int chroma_format_idc)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags))
+        h264_pred_init_neon(h, codec_id, bit_depth, chroma_format_idc);
+}

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/h264pred_neon.S

@@ -0,0 +1,361 @@
+/*
+ * Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/aarch64/asm.S"
+
+.macro ldcol.8  rd,  rs,  rt,  n=8,  hi=0
+.if \n >= 8 || \hi == 0
+        ld1             {\rd\().b}[0],  [\rs], \rt
+        ld1             {\rd\().b}[1],  [\rs], \rt
+        ld1             {\rd\().b}[2],  [\rs], \rt
+        ld1             {\rd\().b}[3],  [\rs], \rt
+.endif
+.if \n >= 8 || \hi == 1
+        ld1             {\rd\().b}[4],  [\rs], \rt
+        ld1             {\rd\().b}[5],  [\rs], \rt
+        ld1             {\rd\().b}[6],  [\rs], \rt
+        ld1             {\rd\().b}[7],  [\rs], \rt
+.endif
+.if \n == 16
+        ld1             {\rd\().b}[8],  [\rs], \rt
+        ld1             {\rd\().b}[9],  [\rs], \rt
+        ld1             {\rd\().b}[10], [\rs], \rt
+        ld1             {\rd\().b}[11], [\rs], \rt
+        ld1             {\rd\().b}[12], [\rs], \rt
+        ld1             {\rd\().b}[13], [\rs], \rt
+        ld1             {\rd\().b}[14], [\rs], \rt
+        ld1             {\rd\().b}[15], [\rs], \rt
+.endif
+.endm
+
+function ff_pred16x16_128_dc_neon, export=1
+        movi            v0.16b,  #128
+        b               .L_pred16x16_dc_end
+endfunc
+
+function ff_pred16x16_top_dc_neon, export=1
+        sub             x2,  x0,  x1
+        ld1             {v0.16b},  [x2]
+        uaddlv          h0,  v0.16b
+        rshrn           v0.8b,  v0.8h,  #4
+        dup             v0.16b, v0.b[0]
+        b               .L_pred16x16_dc_end
+endfunc
+
+function ff_pred16x16_left_dc_neon, export=1
+        sub             x2,  x0,  #1
+        ldcol.8         v0,  x2,  x1, 16
+        uaddlv          h0,  v0.16b
+        rshrn           v0.8b,  v0.8h,  #4
+        dup             v0.16b, v0.b[0]
+        b               .L_pred16x16_dc_end
+endfunc
+
+function ff_pred16x16_dc_neon, export=1
+        sub             x2,  x0,  x1
+        sub             x3,  x0,  #1
+        ld1             {v0.16b}, [x2]
+        ldcol.8         v1,  x3,  x1, 16
+        uaddlv          h0,  v0.16b
+        uaddlv          h1,  v1.16b
+        add             v0.4h,  v0.4h,  v1.4h
+        rshrn           v0.8b,  v0.8h,  #5
+        dup             v0.16b, v0.b[0]
+.L_pred16x16_dc_end:
+        mov             w3,  #8
+6:      st1             {v0.16b}, [x0], x1
+        st1             {v0.16b}, [x0], x1
+        subs            w3,  w3,  #1
+        b.ne            6b
+        ret
+endfunc
+
+function ff_pred16x16_hor_neon, export=1
+        sub             x2,  x0,  #1
+        mov             w3,  #16
+1:      ld1r            {v0.16b}, [x2], x1
+        st1             {v0.16b}, [x0], x1
+        subs            w3,  w3,  #1
+        b.ne            1b
+        ret
+endfunc
+
+function ff_pred16x16_vert_neon, export=1
+        sub             x2,  x0,  x1
+        add             x1,  x1,  x1
+        ld1             {v0.16b}, [x2], x1
+        mov             w3,  #8
+1:      st1             {v0.16b}, [x0], x1
+        st1             {v0.16b}, [x2], x1
+        subs            w3,  w3,  #1
+        b.ne            1b
+        ret
+endfunc
+
+function ff_pred16x16_plane_neon, export=1
+        sub             x3,  x0,  x1
+        movrel          x4,  p16weight
+        add             x2,  x3,  #8
+        sub             x3,  x3,  #1
+        ld1             {v0.8b},  [x3]
+        ld1             {v2.8b},  [x2], x1
+        ldcol.8         v1,  x3,  x1
+        add             x3,  x3,  x1
+        ldcol.8         v3,  x3,  x1
+        rev64           v0.8b,  v0.8b
+        rev64           v1.8b,  v1.8b
+        uaddl           v7.8h,  v2.8b,  v3.8b
+        usubl           v2.8h,  v2.8b,  v0.8b
+        usubl           v3.8h,  v3.8b,  v1.8b
+        ld1             {v0.8h},     [x4]
+        mul             v2.8h,  v2.8h,  v0.8h
+        mul             v3.8h,  v3.8h,  v0.8h
+        addp            v2.8h,  v2.8h,  v3.8h
+        addp            v2.8h,  v2.8h,  v2.8h
+        addp            v2.4h,  v2.4h,  v2.4h
+        sshll           v3.4s,  v2.4h,  #2
+        saddw           v2.4s,  v3.4s,  v2.4h
+        rshrn           v4.4h,  v2.4s,  #6
+        trn2            v5.4h,  v4.4h,  v4.4h
+        add             v2.4h,  v4.4h,  v5.4h
+        shl             v3.4h,  v2.4h,  #3
+        ext             v7.16b, v7.16b, v7.16b, #14
+        sub             v3.4h,  v3.4h,  v2.4h   // 7 * (b + c)
+        add             v7.4h,  v7.4h,  v0.4h
+        shl             v2.4h,  v7.4h,  #4
+        sub             v2.4h,  v2.4h,  v3.4h
+        shl             v3.4h,  v4.4h,  #4
+        ext             v0.16b, v0.16b, v0.16b, #14
+        sub             v6.4h,  v5.4h,  v3.4h
+        mov             v0.h[0],  wzr
+        mul             v0.8h,  v0.8h,  v4.h[0]
+        dup             v1.8h,  v2.h[0]
+        dup             v2.8h,  v4.h[0]
+        dup             v3.8h,  v6.h[0]
+        shl             v2.8h,  v2.8h,  #3
+        add             v1.8h,  v1.8h,  v0.8h
+        add             v3.8h,  v3.8h,  v2.8h
+        mov             w3,  #16
+1:
+        sqshrun         v0.8b,  v1.8h,  #5
+        add             v1.8h,  v1.8h,  v2.8h
+        sqshrun2        v0.16b, v1.8h,  #5
+        add             v1.8h,  v1.8h,  v3.8h
+        st1             {v0.16b}, [x0], x1
+        subs            w3,  w3,  #1
+        b.ne            1b
+        ret
+endfunc
+
+const   p16weight, align=4
+        .short          1,2,3,4,5,6,7,8
+endconst
+const   p8weight, align=4
+        .short          1,2,3,4,1,2,3,4
+endconst
+
+function ff_pred8x8_hor_neon, export=1
+        sub             x2,  x0,  #1
+        mov             w3,  #8
+1:      ld1r            {v0.8b},  [x2], x1
+        st1             {v0.8b},  [x0], x1
+        subs            w3,  w3,  #1
+        b.ne            1b
+        ret
+endfunc
+
+function ff_pred8x8_vert_neon, export=1
+        sub             x2,  x0,  x1
+        lsl             x1,  x1,  #1
+        ld1             {v0.8b},  [x2], x1
+        mov             w3,  #4
+1:      st1             {v0.8b},  [x0], x1
+        st1             {v0.8b},  [x2], x1
+        subs            w3,  w3,  #1
+        b.ne            1b
+        ret
+endfunc
+
+function ff_pred8x8_plane_neon, export=1
+        sub             x3,  x0,  x1
+        movrel          x4,  p8weight
+        movrel          x5,  p16weight
+        add             x2,  x3,  #4
+        sub             x3,  x3,  #1
+        ld1             {v0.s}[0],  [x3]
+        ld1             {v2.s}[0],  [x2], x1
+        ldcol.8         v0,  x3,  x1,  4,  hi=1
+        add             x3,  x3,  x1
+        ldcol.8         v3,  x3,  x1,  4
+        uaddl           v7.8h,  v2.8b,  v3.8b
+        rev32           v0.8b,  v0.8b
+        trn1            v2.2s,  v2.2s,  v3.2s
+        usubl           v2.8h,  v2.8b,  v0.8b
+        ld1             {v6.8h},  [x4]
+        mul             v2.8h,  v2.8h,  v6.8h
+        ld1             {v0.8h},  [x5]
+        saddlp          v2.4s,  v2.8h
+        addp            v2.4s,  v2.4s,  v2.4s
+        shl             v3.4s,  v2.4s,  #4
+        add             v2.4s,  v3.4s,  v2.4s
+        rshrn           v5.4h,  v2.4s,  #5
+        addp            v2.4h,  v5.4h,  v5.4h
+        shl             v3.4h,  v2.4h,  #1
+        add             v3.4h,  v3.4h,  v2.4h
+        rev64           v7.4h,  v7.4h
+        add             v7.4h,  v7.4h,  v0.4h
+        shl             v2.4h,  v7.4h,  #4
+        sub             v2.4h,  v2.4h,  v3.4h
+        ext             v0.16b, v0.16b, v0.16b, #14
+        mov             v0.h[0],  wzr
+        mul             v0.8h,  v0.8h,  v5.h[0]
+        dup             v1.8h,  v2.h[0]
+        dup             v2.8h,  v5.h[1]
+        add             v1.8h,  v1.8h,  v0.8h
+        mov             w3,  #8
+1:
+        sqshrun         v0.8b,  v1.8h,  #5
+        add             v1.8h,  v1.8h,  v2.8h
+        st1             {v0.8b},  [x0], x1
+        subs            w3,  w3,  #1
+        b.ne            1b
+        ret
+endfunc
+
+function ff_pred8x8_128_dc_neon, export=1
+        movi            v0.8b,  #128
+        movi            v1.8b,  #128
+        b               .L_pred8x8_dc_end
+endfunc
+
+function ff_pred8x8_top_dc_neon, export=1
+        sub             x2,  x0,  x1
+        ld1             {v0.8b},  [x2]
+        uaddlp          v0.4h,  v0.8b
+        addp            v0.4h,  v0.4h,  v0.4h
+        zip1            v0.8h,  v0.8h,  v0.8h
+        rshrn           v2.8b,  v0.8h,  #2
+        zip1            v0.8b,  v2.8b,  v2.8b
+        zip1            v1.8b,  v2.8b,  v2.8b
+        b               .L_pred8x8_dc_end
+endfunc
+
+function ff_pred8x8_left_dc_neon, export=1
+        sub             x2,  x0,  #1
+        ldcol.8         v0,  x2,  x1
+        uaddlp          v0.4h,  v0.8b
+        addp            v0.4h,  v0.4h,  v0.4h
+        rshrn           v2.8b,  v0.8h,  #2
+        dup             v1.8b,  v2.b[1]
+        dup             v0.8b,  v2.b[0]
+        b               .L_pred8x8_dc_end
+endfunc
+
+function ff_pred8x8_dc_neon, export=1
+        sub             x2,  x0,  x1
+        sub             x3,  x0,  #1
+        ld1             {v0.8b}, [x2]
+        ldcol.8         v1,  x3,  x1
+        uaddlp          v0.4h,  v0.8b
+        uaddlp          v1.4h,  v1.8b
+        trn1            v2.2s,  v0.2s,  v1.2s
+        trn2            v3.2s,  v0.2s,  v1.2s
+        addp            v4.4h,  v2.4h,  v3.4h
+        addp            v5.4h,  v4.4h,  v4.4h
+        rshrn           v6.8b,  v5.8h,  #3
+        rshrn           v7.8b,  v4.8h,  #2
+        dup             v0.8b,  v6.b[0]
+        dup             v2.8b,  v7.b[2]
+        dup             v1.8b,  v7.b[3]
+        dup             v3.8b,  v6.b[1]
+        zip1            v0.2s,  v0.2s,  v2.2s
+        zip1            v1.2s,  v1.2s,  v3.2s
+.L_pred8x8_dc_end:
+        mov             w3,  #4
+        add             x2,  x0,  x1,  lsl #2
+6:      st1             {v0.8b},  [x0], x1
+        st1             {v1.8b},  [x2], x1
+        subs            w3,  w3,  #1
+        b.ne            6b
+        ret
+endfunc
+
+function ff_pred8x8_l0t_dc_neon, export=1
+        sub             x2,  x0,  x1
+        sub             x3,  x0,  #1
+        ld1             {v0.8b},  [x2]
+        ldcol.8         v1,  x3,  x1,  4
+        zip1            v0.4s,  v0.4s,  v1.4s
+        uaddlp          v0.8h,  v0.16b
+        addp            v0.8h,  v0.8h,  v0.8h
+        addp            v1.4h,  v0.4h,  v0.4h
+        rshrn           v2.8b,  v0.8h,  #2
+        rshrn           v3.8b,  v1.8h,  #3
+        dup             v4.8b,  v3.b[0]
+        dup             v6.8b,  v2.b[2]
+        dup             v5.8b,  v2.b[0]
+        zip1            v0.2s,  v4.2s,  v6.2s
+        zip1            v1.2s,  v5.2s,  v6.2s
+        b               .L_pred8x8_dc_end
+endfunc
+
+function ff_pred8x8_l00_dc_neon, export=1
+        sub             x2,  x0,  #1
+        ldcol.8         v0,  x2,  x1,  4
+        uaddlp          v0.4h,  v0.8b
+        addp            v0.4h,  v0.4h,  v0.4h
+        rshrn           v0.8b,  v0.8h,  #2
+        movi            v1.8b,  #128
+        dup             v0.8b,  v0.b[0]
+        b               .L_pred8x8_dc_end
+endfunc
+
+function ff_pred8x8_0lt_dc_neon, export=1
+        add             x3,  x0,  x1,  lsl #2
+        sub             x2,  x0,  x1
+        sub             x3,  x3,  #1
+        ld1             {v0.8b},  [x2]
+        ldcol.8         v1,  x3,  x1,  4,  hi=1
+        zip1            v0.4s,  v0.4s,  v1.4s
+        uaddlp          v0.8h,  v0.16b
+        addp            v0.8h,  v0.8h,  v0.8h
+        addp            v1.4h,  v0.4h,  v0.4h
+        rshrn           v2.8b,  v0.8h,  #2
+        rshrn           v3.8b,  v1.8h,  #3
+        dup             v4.8b,  v2.b[0]
+        dup             v5.8b,  v2.b[3]
+        dup             v6.8b,  v2.b[2]
+        dup             v7.8b,  v3.b[1]
+        zip1            v0.2s,  v4.2s,  v6.2s
+        zip1            v1.2s,  v5.2s,  v7.2s
+        b               .L_pred8x8_dc_end
+endfunc
+
+function ff_pred8x8_0l0_dc_neon, export=1
+        add             x2,  x0,  x1,  lsl #2
+        sub             x2,  x2,  #1
+        ldcol.8         v1,  x2,  x1,  4
+        uaddlp          v2.4h,  v1.8b
+        addp            v2.4h,  v2.4h,  v2.4h
+        rshrn           v1.8b,  v2.8h,  #2
+        movi            v0.8b,  #128
+        dup             v1.8b,  v1.b[0]
+        b               .L_pred8x8_dc_end
+endfunc

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/h264qpel_init_aarch64.c

@@ -0,0 +1,172 @@
+/*
+ * ARM NEON optimised DSP functions
+ * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/aarch64/cpu.h"
+#include "libavcodec/h264qpel.h"
+
+void ff_put_h264_qpel16_mc00_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc10_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc20_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc30_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc01_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc11_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc21_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc31_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc02_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc12_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc22_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc32_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc03_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc13_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc23_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel16_mc33_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+
+void ff_put_h264_qpel8_mc00_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc10_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc20_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc30_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc01_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc11_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc21_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc31_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc02_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc12_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc22_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc32_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc03_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc13_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc23_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_put_h264_qpel8_mc33_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+
+void ff_avg_h264_qpel16_mc00_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc10_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc20_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc30_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc01_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc11_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc21_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc31_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc02_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc12_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc22_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc32_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc03_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc13_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc23_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel16_mc33_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+
+void ff_avg_h264_qpel8_mc00_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc10_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc20_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc30_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc01_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc11_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc21_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc31_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc02_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc12_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc22_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc32_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc03_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc13_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc23_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+void ff_avg_h264_qpel8_mc33_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
+
+av_cold void ff_h264qpel_init_aarch64(H264QpelContext *c, int bit_depth)
+{
+    const int high_bit_depth = bit_depth > 8;
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags) && !high_bit_depth) {
+        c->put_h264_qpel_pixels_tab[0][ 0] = ff_put_h264_qpel16_mc00_neon;
+        c->put_h264_qpel_pixels_tab[0][ 1] = ff_put_h264_qpel16_mc10_neon;
+        c->put_h264_qpel_pixels_tab[0][ 2] = ff_put_h264_qpel16_mc20_neon;
+        c->put_h264_qpel_pixels_tab[0][ 3] = ff_put_h264_qpel16_mc30_neon;
+        c->put_h264_qpel_pixels_tab[0][ 4] = ff_put_h264_qpel16_mc01_neon;
+        c->put_h264_qpel_pixels_tab[0][ 5] = ff_put_h264_qpel16_mc11_neon;
+        c->put_h264_qpel_pixels_tab[0][ 6] = ff_put_h264_qpel16_mc21_neon;
+        c->put_h264_qpel_pixels_tab[0][ 7] = ff_put_h264_qpel16_mc31_neon;
+        c->put_h264_qpel_pixels_tab[0][ 8] = ff_put_h264_qpel16_mc02_neon;
+        c->put_h264_qpel_pixels_tab[0][ 9] = ff_put_h264_qpel16_mc12_neon;
+        c->put_h264_qpel_pixels_tab[0][10] = ff_put_h264_qpel16_mc22_neon;
+        c->put_h264_qpel_pixels_tab[0][11] = ff_put_h264_qpel16_mc32_neon;
+        c->put_h264_qpel_pixels_tab[0][12] = ff_put_h264_qpel16_mc03_neon;
+        c->put_h264_qpel_pixels_tab[0][13] = ff_put_h264_qpel16_mc13_neon;
+        c->put_h264_qpel_pixels_tab[0][14] = ff_put_h264_qpel16_mc23_neon;
+        c->put_h264_qpel_pixels_tab[0][15] = ff_put_h264_qpel16_mc33_neon;
+
+        c->put_h264_qpel_pixels_tab[1][ 0] = ff_put_h264_qpel8_mc00_neon;
+        c->put_h264_qpel_pixels_tab[1][ 1] = ff_put_h264_qpel8_mc10_neon;
+        c->put_h264_qpel_pixels_tab[1][ 2] = ff_put_h264_qpel8_mc20_neon;
+        c->put_h264_qpel_pixels_tab[1][ 3] = ff_put_h264_qpel8_mc30_neon;
+        c->put_h264_qpel_pixels_tab[1][ 4] = ff_put_h264_qpel8_mc01_neon;
+        c->put_h264_qpel_pixels_tab[1][ 5] = ff_put_h264_qpel8_mc11_neon;
+        c->put_h264_qpel_pixels_tab[1][ 6] = ff_put_h264_qpel8_mc21_neon;
+        c->put_h264_qpel_pixels_tab[1][ 7] = ff_put_h264_qpel8_mc31_neon;
+        c->put_h264_qpel_pixels_tab[1][ 8] = ff_put_h264_qpel8_mc02_neon;
+        c->put_h264_qpel_pixels_tab[1][ 9] = ff_put_h264_qpel8_mc12_neon;
+        c->put_h264_qpel_pixels_tab[1][10] = ff_put_h264_qpel8_mc22_neon;
+        c->put_h264_qpel_pixels_tab[1][11] = ff_put_h264_qpel8_mc32_neon;
+        c->put_h264_qpel_pixels_tab[1][12] = ff_put_h264_qpel8_mc03_neon;
+        c->put_h264_qpel_pixels_tab[1][13] = ff_put_h264_qpel8_mc13_neon;
+        c->put_h264_qpel_pixels_tab[1][14] = ff_put_h264_qpel8_mc23_neon;
+        c->put_h264_qpel_pixels_tab[1][15] = ff_put_h264_qpel8_mc33_neon;
+
+        c->avg_h264_qpel_pixels_tab[0][ 0] = ff_avg_h264_qpel16_mc00_neon;
+        c->avg_h264_qpel_pixels_tab[0][ 1] = ff_avg_h264_qpel16_mc10_neon;
+        c->avg_h264_qpel_pixels_tab[0][ 2] = ff_avg_h264_qpel16_mc20_neon;
+        c->avg_h264_qpel_pixels_tab[0][ 3] = ff_avg_h264_qpel16_mc30_neon;
+        c->avg_h264_qpel_pixels_tab[0][ 4] = ff_avg_h264_qpel16_mc01_neon;
+        c->avg_h264_qpel_pixels_tab[0][ 5] = ff_avg_h264_qpel16_mc11_neon;
+        c->avg_h264_qpel_pixels_tab[0][ 6] = ff_avg_h264_qpel16_mc21_neon;
+        c->avg_h264_qpel_pixels_tab[0][ 7] = ff_avg_h264_qpel16_mc31_neon;
+        c->avg_h264_qpel_pixels_tab[0][ 8] = ff_avg_h264_qpel16_mc02_neon;
+        c->avg_h264_qpel_pixels_tab[0][ 9] = ff_avg_h264_qpel16_mc12_neon;
+        c->avg_h264_qpel_pixels_tab[0][10] = ff_avg_h264_qpel16_mc22_neon;
+        c->avg_h264_qpel_pixels_tab[0][11] = ff_avg_h264_qpel16_mc32_neon;
+        c->avg_h264_qpel_pixels_tab[0][12] = ff_avg_h264_qpel16_mc03_neon;
+        c->avg_h264_qpel_pixels_tab[0][13] = ff_avg_h264_qpel16_mc13_neon;
+        c->avg_h264_qpel_pixels_tab[0][14] = ff_avg_h264_qpel16_mc23_neon;
+        c->avg_h264_qpel_pixels_tab[0][15] = ff_avg_h264_qpel16_mc33_neon;
+
+        c->avg_h264_qpel_pixels_tab[1][ 0] = ff_avg_h264_qpel8_mc00_neon;
+        c->avg_h264_qpel_pixels_tab[1][ 1] = ff_avg_h264_qpel8_mc10_neon;
+        c->avg_h264_qpel_pixels_tab[1][ 2] = ff_avg_h264_qpel8_mc20_neon;
+        c->avg_h264_qpel_pixels_tab[1][ 3] = ff_avg_h264_qpel8_mc30_neon;
+        c->avg_h264_qpel_pixels_tab[1][ 4] = ff_avg_h264_qpel8_mc01_neon;
+        c->avg_h264_qpel_pixels_tab[1][ 5] = ff_avg_h264_qpel8_mc11_neon;
+        c->avg_h264_qpel_pixels_tab[1][ 6] = ff_avg_h264_qpel8_mc21_neon;
+        c->avg_h264_qpel_pixels_tab[1][ 7] = ff_avg_h264_qpel8_mc31_neon;
+        c->avg_h264_qpel_pixels_tab[1][ 8] = ff_avg_h264_qpel8_mc02_neon;
+        c->avg_h264_qpel_pixels_tab[1][ 9] = ff_avg_h264_qpel8_mc12_neon;
+        c->avg_h264_qpel_pixels_tab[1][10] = ff_avg_h264_qpel8_mc22_neon;
+        c->avg_h264_qpel_pixels_tab[1][11] = ff_avg_h264_qpel8_mc32_neon;
+        c->avg_h264_qpel_pixels_tab[1][12] = ff_avg_h264_qpel8_mc03_neon;
+        c->avg_h264_qpel_pixels_tab[1][13] = ff_avg_h264_qpel8_mc13_neon;
+        c->avg_h264_qpel_pixels_tab[1][14] = ff_avg_h264_qpel8_mc23_neon;
+        c->avg_h264_qpel_pixels_tab[1][15] = ff_avg_h264_qpel8_mc33_neon;
+    }
+}

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/h264qpel_neon.S

@@ -0,0 +1,934 @@
+/*
+ * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
+ * Copyright (c) 2013 Janne Grunau <janne-libav@jannau.net>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/aarch64/asm.S"
+#include "neon.S"
+
+        /* H.264 qpel MC */
+
+.macro  lowpass_const   r
+        movz            \r, #20, lsl #16
+        movk            \r, #5
+        mov             v6.S[0], \r
+.endm
+
+//trashes v0-v5
+.macro  lowpass_8       r0,  r1,  r2,  r3,  d0,  d1,  narrow=1
+        ext             v2.8B,      \r0\().8B, \r1\().8B, #2
+        ext             v3.8B,      \r0\().8B, \r1\().8B, #3
+        uaddl           v2.8H,      v2.8B,     v3.8B
+        ext             v4.8B,      \r0\().8B, \r1\().8B, #1
+        ext             v5.8B,      \r0\().8B, \r1\().8B, #4
+        uaddl           v4.8H,      v4.8B,     v5.8B
+        ext             v1.8B,      \r0\().8B, \r1\().8B, #5
+        uaddl           \d0\().8H,  \r0\().8B, v1.8B
+        ext             v0.8B,      \r2\().8B, \r3\().8B, #2
+        mla             \d0\().8H,  v2.8H,     v6.H[1]
+        ext             v1.8B,      \r2\().8B, \r3\().8B, #3
+        uaddl           v0.8H,      v0.8B,     v1.8B
+        ext             v1.8B,      \r2\().8B, \r3\().8B, #1
+        mls             \d0\().8H,  v4.8H,     v6.H[0]
+        ext             v3.8B,      \r2\().8B, \r3\().8B, #4
+        uaddl           v1.8H,      v1.8B,     v3.8B
+        ext             v2.8B,      \r2\().8B, \r3\().8B, #5
+        uaddl           \d1\().8H,  \r2\().8B, v2.8B
+        mla             \d1\().8H,  v0.8H,     v6.H[1]
+        mls             \d1\().8H,  v1.8H,     v6.H[0]
+  .if \narrow
+        sqrshrun        \d0\().8B,  \d0\().8H, #5
+        sqrshrun        \d1\().8B,  \d1\().8H, #5
+  .endif
+.endm
+
+//trashes v0-v5, v7, v30-v31
+.macro  lowpass_8H      r0,  r1
+        ext             v0.16B,     \r0\().16B, \r0\().16B, #2
+        ext             v1.16B,     \r0\().16B, \r0\().16B, #3
+        uaddl           v0.8H,      v0.8B,      v1.8B
+        ext             v2.16B,     \r0\().16B, \r0\().16B, #1
+        ext             v3.16B,     \r0\().16B, \r0\().16B, #4
+        uaddl           v2.8H,      v2.8B,      v3.8B
+        ext             v30.16B,    \r0\().16B, \r0\().16B, #5
+        uaddl           \r0\().8H,  \r0\().8B,  v30.8B
+        ext             v4.16B,     \r1\().16B, \r1\().16B, #2
+        mla             \r0\().8H,  v0.8H,      v6.H[1]
+        ext             v5.16B,     \r1\().16B, \r1\().16B, #3
+        uaddl           v4.8H,      v4.8B,      v5.8B
+        ext             v7.16B,     \r1\().16B, \r1\().16B, #1
+        mls             \r0\().8H,  v2.8H,      v6.H[0]
+        ext             v0.16B,     \r1\().16B, \r1\().16B, #4
+        uaddl           v7.8H,      v7.8B,      v0.8B
+        ext             v31.16B,    \r1\().16B, \r1\().16B, #5
+        uaddl           \r1\().8H,  \r1\().8B,  v31.8B
+        mla             \r1\().8H,  v4.8H,      v6.H[1]
+        mls             \r1\().8H,  v7.8H,      v6.H[0]
+.endm
+
+// trashes v2-v5, v30
+.macro  lowpass_8_1     r0,  r1,  d0,  narrow=1
+        ext             v2.8B,     \r0\().8B, \r1\().8B, #2
+        ext             v3.8B,     \r0\().8B, \r1\().8B, #3
+        uaddl           v2.8H,     v2.8B,     v3.8B
+        ext             v4.8B,     \r0\().8B, \r1\().8B, #1
+        ext             v5.8B,     \r0\().8B, \r1\().8B, #4
+        uaddl           v4.8H,     v4.8B,     v5.8B
+        ext             v30.8B,    \r0\().8B, \r1\().8B, #5
+        uaddl           \d0\().8H, \r0\().8B, v30.8B
+        mla             \d0\().8H, v2.8H,     v6.H[1]
+        mls             \d0\().8H, v4.8H,     v6.H[0]
+  .if \narrow
+        sqrshrun        \d0\().8B, \d0\().8H, #5
+  .endif
+.endm
+
+// trashed v0-v7
+.macro  lowpass_8.16    r0,  r1,  r2
+        ext             v1.16B,     \r0\().16B, \r1\().16B, #4
+        ext             v0.16B,     \r0\().16B, \r1\().16B, #6
+        saddl           v5.4S,      v1.4H,      v0.4H
+        ext             v2.16B,     \r0\().16B, \r1\().16B, #2
+        saddl2          v1.4S,      v1.8H,      v0.8H
+        ext             v3.16B,     \r0\().16B, \r1\().16B, #8
+        saddl           v6.4S,      v2.4H,      v3.4H
+        ext             \r1\().16B, \r0\().16B, \r1\().16B, #10
+        saddl2          v2.4S,      v2.8H,      v3.8H
+        saddl           v0.4S,      \r0\().4H,  \r1\().4H
+        saddl2          v4.4S,      \r0\().8H,  \r1\().8H
+
+        shl             v3.4S,  v5.4S,  #4
+        shl             v5.4S,  v5.4S,  #2
+        shl             v7.4S,  v6.4S,  #2
+        add             v5.4S,  v5.4S,  v3.4S
+        add             v6.4S,  v6.4S,  v7.4S
+
+        shl             v3.4S,  v1.4S,  #4
+        shl             v1.4S,  v1.4S,  #2
+        shl             v7.4S,  v2.4S,  #2
+        add             v1.4S,  v1.4S,  v3.4S
+        add             v2.4S,  v2.4S,  v7.4S
+
+        add             v5.4S,  v5.4S,  v0.4S
+        sub             v5.4S,  v5.4S,  v6.4S
+
+        add             v1.4S,  v1.4S,  v4.4S
+        sub             v1.4S,  v1.4S,  v2.4S
+
+        rshrn           v5.4H,  v5.4S,  #10
+        rshrn2          v5.8H,  v1.4S,  #10
+
+        sqxtun          \r2\().8B,  v5.8H
+.endm
+
+function put_h264_qpel16_h_lowpass_neon_packed
+        mov             x4,  x30
+        mov             x12, #16
+        mov             x3,  #8
+        bl              put_h264_qpel8_h_lowpass_neon
+        sub             x1,  x1,  x2, lsl #4
+        add             x1,  x1,  #8
+        mov             x12, #16
+        mov             x30, x4
+        b               put_h264_qpel8_h_lowpass_neon
+endfunc
+
+.macro  h264_qpel_h_lowpass type
+function \type\()_h264_qpel16_h_lowpass_neon
+        mov             x13, x30
+        mov             x12, #16
+        bl              \type\()_h264_qpel8_h_lowpass_neon
+        sub             x0,  x0,  x3, lsl #4
+        sub             x1,  x1,  x2, lsl #4
+        add             x0,  x0,  #8
+        add             x1,  x1,  #8
+        mov             x12, #16
+        mov             x30, x13
+endfunc
+
+function \type\()_h264_qpel8_h_lowpass_neon
+1:      ld1             {v28.8B, v29.8B}, [x1], x2
+        ld1             {v16.8B, v17.8B}, [x1], x2
+        subs            x12, x12, #2
+        lowpass_8       v28, v29, v16, v17, v28, v16
+  .ifc \type,avg
+        ld1             {v2.8B},    [x0], x3
+        urhadd          v28.8B, v28.8B,  v2.8B
+        ld1             {v3.8B},    [x0]
+        urhadd          v16.8B, v16.8B, v3.8B
+        sub             x0,  x0,  x3
+  .endif
+        st1             {v28.8B},    [x0], x3
+        st1             {v16.8B},    [x0], x3
+        b.ne            1b
+        ret
+endfunc
+.endm
+
+        h264_qpel_h_lowpass put
+        h264_qpel_h_lowpass avg
+
+.macro  h264_qpel_h_lowpass_l2 type
+function \type\()_h264_qpel16_h_lowpass_l2_neon
+        mov             x13, x30
+        mov             x12, #16
+        bl              \type\()_h264_qpel8_h_lowpass_l2_neon
+        sub             x0,  x0,  x2, lsl #4
+        sub             x1,  x1,  x2, lsl #4
+        sub             x3,  x3,  x2, lsl #4
+        add             x0,  x0,  #8
+        add             x1,  x1,  #8
+        add             x3,  x3,  #8
+        mov             x12, #16
+        mov             x30, x13
+endfunc
+
+function \type\()_h264_qpel8_h_lowpass_l2_neon
+1:      ld1             {v26.8B, v27.8B}, [x1], x2
+        ld1             {v16.8B, v17.8B}, [x1], x2
+        ld1             {v28.8B},     [x3], x2
+        ld1             {v29.8B},     [x3], x2
+        subs            x12, x12, #2
+        lowpass_8       v26, v27, v16, v17, v26, v27
+        urhadd          v26.8B, v26.8B, v28.8B
+        urhadd          v27.8B, v27.8B, v29.8B
+  .ifc \type,avg
+        ld1             {v2.8B},      [x0], x2
+        urhadd          v26.8B, v26.8B, v2.8B
+        ld1             {v3.8B},      [x0]
+        urhadd          v27.8B, v27.8B, v3.8B
+        sub             x0,  x0,  x2
+  .endif
+        st1             {v26.8B},     [x0], x2
+        st1             {v27.8B},     [x0], x2
+        b.ne            1b
+        ret
+endfunc
+.endm
+
+        h264_qpel_h_lowpass_l2 put
+        h264_qpel_h_lowpass_l2 avg
+
+function put_h264_qpel16_v_lowpass_neon_packed
+        mov             x4,  x30
+        mov             x2,  #8
+        bl              put_h264_qpel8_v_lowpass_neon
+        sub             x1,  x1,  x3, lsl #2
+        bl              put_h264_qpel8_v_lowpass_neon
+        sub             x1,  x1,  x3, lsl #4
+        sub             x1,  x1,  x3, lsl #2
+        add             x1,  x1,  #8
+        bl              put_h264_qpel8_v_lowpass_neon
+        sub             x1,  x1,  x3, lsl #2
+        mov             x30, x4
+        b               put_h264_qpel8_v_lowpass_neon
+endfunc
+
+.macro  h264_qpel_v_lowpass type
+function \type\()_h264_qpel16_v_lowpass_neon
+        mov             x4,  x30
+        bl              \type\()_h264_qpel8_v_lowpass_neon
+        sub             x1,  x1,  x3, lsl #2
+        bl              \type\()_h264_qpel8_v_lowpass_neon
+        sub             x0,  x0,  x2, lsl #4
+        add             x0,  x0,  #8
+        sub             x1,  x1,  x3, lsl #4
+        sub             x1,  x1,  x3, lsl #2
+        add             x1,  x1,  #8
+        bl              \type\()_h264_qpel8_v_lowpass_neon
+        sub             x1,  x1,  x3, lsl #2
+        mov             x30, x4
+endfunc
+
+function \type\()_h264_qpel8_v_lowpass_neon
+        ld1             {v16.8B}, [x1], x3
+        ld1             {v18.8B}, [x1], x3
+        ld1             {v20.8B}, [x1], x3
+        ld1             {v22.8B}, [x1], x3
+        ld1             {v24.8B}, [x1], x3
+        ld1             {v26.8B}, [x1], x3
+        ld1             {v28.8B}, [x1], x3
+        ld1             {v30.8B}, [x1], x3
+        ld1             {v17.8B}, [x1], x3
+        ld1             {v19.8B}, [x1], x3
+        ld1             {v21.8B}, [x1], x3
+        ld1             {v23.8B}, [x1], x3
+        ld1             {v25.8B}, [x1]
+
+        transpose_8x8B  v16, v18, v20, v22, v24, v26, v28, v30, v0,  v1
+        transpose_8x8B  v17, v19, v21, v23, v25, v27, v29, v31, v0,  v1
+        lowpass_8       v16, v17, v18, v19, v16, v17
+        lowpass_8       v20, v21, v22, v23, v18, v19
+        lowpass_8       v24, v25, v26, v27, v20, v21
+        lowpass_8       v28, v29, v30, v31, v22, v23
+        transpose_8x8B  v16, v17, v18, v19, v20, v21, v22, v23, v0,  v1
+
+  .ifc \type,avg
+        ld1             {v24.8B},  [x0], x2
+        urhadd          v16.8B, v16.8B, v24.8B
+        ld1             {v25.8B}, [x0], x2
+        urhadd          v17.8B, v17.8B, v25.8B
+        ld1             {v26.8B}, [x0], x2
+        urhadd          v18.8B, v18.8B, v26.8B
+        ld1             {v27.8B}, [x0], x2
+        urhadd          v19.8B, v19.8B, v27.8B
+        ld1             {v28.8B}, [x0], x2
+        urhadd          v20.8B, v20.8B, v28.8B
+        ld1             {v29.8B}, [x0], x2
+        urhadd          v21.8B, v21.8B, v29.8B
+        ld1             {v30.8B}, [x0], x2
+        urhadd          v22.8B, v22.8B, v30.8B
+        ld1             {v31.8B}, [x0], x2
+        urhadd          v23.8B, v23.8B, v31.8B
+        sub             x0,  x0,  x2,  lsl #3
+  .endif
+
+        st1             {v16.8B}, [x0], x2
+        st1             {v17.8B}, [x0], x2
+        st1             {v18.8B}, [x0], x2
+        st1             {v19.8B}, [x0], x2
+        st1             {v20.8B}, [x0], x2
+        st1             {v21.8B}, [x0], x2
+        st1             {v22.8B}, [x0], x2
+        st1             {v23.8B}, [x0], x2
+
+        ret
+endfunc
+.endm
+
+        h264_qpel_v_lowpass put
+        h264_qpel_v_lowpass avg
+
+.macro  h264_qpel_v_lowpass_l2 type
+function \type\()_h264_qpel16_v_lowpass_l2_neon
+        mov             x4,  x30
+        bl              \type\()_h264_qpel8_v_lowpass_l2_neon
+        sub             x1,  x1,  x3, lsl #2
+        bl              \type\()_h264_qpel8_v_lowpass_l2_neon
+        sub             x0,  x0,  x3, lsl #4
+        sub             x12, x12, x2, lsl #4
+        add             x0,  x0,  #8
+        add             x12, x12, #8
+        sub             x1,  x1,  x3, lsl #4
+        sub             x1,  x1,  x3, lsl #2
+        add             x1,  x1,  #8
+        bl              \type\()_h264_qpel8_v_lowpass_l2_neon
+        sub             x1,  x1,  x3, lsl #2
+        mov             x30, x4
+endfunc
+
+function \type\()_h264_qpel8_v_lowpass_l2_neon
+        ld1             {v16.8B}, [x1], x3
+        ld1             {v18.8B}, [x1], x3
+        ld1             {v20.8B}, [x1], x3
+        ld1             {v22.8B}, [x1], x3
+        ld1             {v24.8B}, [x1], x3
+        ld1             {v26.8B}, [x1], x3
+        ld1             {v28.8B}, [x1], x3
+        ld1             {v30.8B}, [x1], x3
+        ld1             {v17.8B}, [x1], x3
+        ld1             {v19.8B}, [x1], x3
+        ld1             {v21.8B}, [x1], x3
+        ld1             {v23.8B}, [x1], x3
+        ld1             {v25.8B}, [x1]
+
+        transpose_8x8B  v16, v18, v20, v22, v24, v26, v28, v30, v0,  v1
+        transpose_8x8B  v17, v19, v21, v23, v25, v27, v29, v31, v0,  v1
+        lowpass_8       v16, v17, v18, v19, v16, v17
+        lowpass_8       v20, v21, v22, v23, v18, v19
+        lowpass_8       v24, v25, v26, v27, v20, v21
+        lowpass_8       v28, v29, v30, v31, v22, v23
+        transpose_8x8B  v16, v17, v18, v19, v20, v21, v22, v23, v0,  v1
+
+        ld1             {v24.8B},  [x12], x2
+        ld1             {v25.8B},  [x12], x2
+        ld1             {v26.8B},  [x12], x2
+        ld1             {v27.8B},  [x12], x2
+        ld1             {v28.8B},  [x12], x2
+        urhadd          v16.8B, v24.8B, v16.8B
+        urhadd          v17.8B, v25.8B, v17.8B
+        ld1             {v29.8B},  [x12], x2
+        urhadd          v18.8B, v26.8B, v18.8B
+        urhadd          v19.8B, v27.8B, v19.8B
+        ld1             {v30.8B}, [x12], x2
+        urhadd          v20.8B, v28.8B, v20.8B
+        urhadd          v21.8B, v29.8B, v21.8B
+        ld1             {v31.8B}, [x12], x2
+        urhadd          v22.8B, v30.8B, v22.8B
+        urhadd          v23.8B, v31.8B, v23.8B
+
+  .ifc \type,avg
+        ld1             {v24.8B}, [x0], x3
+        urhadd          v16.8B, v16.8B, v24.8B
+        ld1             {v25.8B}, [x0], x3
+        urhadd          v17.8B, v17.8B, v25.8B
+        ld1             {v26.8B}, [x0], x3
+        urhadd          v18.8B, v18.8B, v26.8B
+        ld1             {v27.8B}, [x0], x3
+        urhadd          v19.8B, v19.8B, v27.8B
+        ld1             {v28.8B}, [x0], x3
+        urhadd          v20.8B, v20.8B, v28.8B
+        ld1             {v29.8B}, [x0], x3
+        urhadd          v21.8B, v21.8B, v29.8B
+        ld1             {v30.8B}, [x0], x3
+        urhadd          v22.8B, v22.8B, v30.8B
+        ld1             {v31.8B}, [x0], x3
+        urhadd          v23.8B, v23.8B, v31.8B
+        sub             x0,  x0,  x3,  lsl #3
+  .endif
+
+        st1             {v16.8B}, [x0], x3
+        st1             {v17.8B}, [x0], x3
+        st1             {v18.8B}, [x0], x3
+        st1             {v19.8B}, [x0], x3
+        st1             {v20.8B}, [x0], x3
+        st1             {v21.8B}, [x0], x3
+        st1             {v22.8B}, [x0], x3
+        st1             {v23.8B}, [x0], x3
+
+        ret
+endfunc
+.endm
+
+        h264_qpel_v_lowpass_l2 put
+        h264_qpel_v_lowpass_l2 avg
+
+function put_h264_qpel8_hv_lowpass_neon_top
+        lowpass_const   w12
+        ld1             {v16.8H}, [x1], x3
+        ld1             {v17.8H}, [x1], x3
+        ld1             {v18.8H}, [x1], x3
+        ld1             {v19.8H}, [x1], x3
+        ld1             {v20.8H}, [x1], x3
+        ld1             {v21.8H}, [x1], x3
+        ld1             {v22.8H}, [x1], x3
+        ld1             {v23.8H}, [x1], x3
+        ld1             {v24.8H}, [x1], x3
+        ld1             {v25.8H}, [x1], x3
+        ld1             {v26.8H}, [x1], x3
+        ld1             {v27.8H}, [x1], x3
+        ld1             {v28.8H}, [x1]
+        lowpass_8H      v16, v17
+        lowpass_8H      v18, v19
+        lowpass_8H      v20, v21
+        lowpass_8H      v22, v23
+        lowpass_8H      v24, v25
+        lowpass_8H      v26, v27
+        lowpass_8H      v28, v29
+
+        transpose_8x8H  v16, v17, v18, v19, v20, v21, v22, v23, v0,  v1
+        transpose_8x8H  v24, v25, v26, v27, v28, v29, v30, v31, v0,  v1
+
+        lowpass_8.16    v16, v24, v16
+        lowpass_8.16    v17, v25, v17
+
+        lowpass_8.16    v18, v26, v18
+        lowpass_8.16    v19, v27, v19
+
+        lowpass_8.16    v20, v28, v20
+        lowpass_8.16    v21, v29, v21
+
+        lowpass_8.16    v22, v30, v22
+        lowpass_8.16    v23, v31, v23
+
+        transpose_8x8B v16, v17, v18, v19, v20, v21, v22, v23, v0,  v1
+
+        ret
+endfunc
+
+.macro  h264_qpel8_hv_lowpass type
+function \type\()_h264_qpel8_hv_lowpass_neon
+        mov             x10, x30
+        bl              put_h264_qpel8_hv_lowpass_neon_top
+  .ifc \type,avg
+        ld1             {v0.8B},      [x0], x2
+        urhadd          v16.8B, v16.8B, v0.8B
+        ld1             {v1.8B},      [x0], x2
+        urhadd          v17.8B, v17.8B, v1.8B
+        ld1             {v2.8B},      [x0], x2
+        urhadd          v18.8B, v18.8B, v2.8B
+        ld1             {v3.8B},      [x0], x2
+        urhadd          v19.8B, v19.8B, v3.8B
+        ld1             {v4.8B},      [x0], x2
+        urhadd          v20.8B, v20.8B, v4.8B
+        ld1             {v5.8B},      [x0], x2
+        urhadd          v21.8B, v21.8B, v5.8B
+        ld1             {v6.8B},      [x0], x2
+        urhadd          v22.8B, v22.8B, v6.8B
+        ld1             {v7.8B},      [x0], x2
+        urhadd          v23.8B, v23.8B, v7.8B
+        sub             x0,  x0,  x2,  lsl #3
+  .endif
+
+        st1             {v16.8B},     [x0], x2
+        st1             {v17.8B},     [x0], x2
+        st1             {v18.8B},     [x0], x2
+        st1             {v19.8B},     [x0], x2
+        st1             {v20.8B},     [x0], x2
+        st1             {v21.8B},     [x0], x2
+        st1             {v22.8B},     [x0], x2
+        st1             {v23.8B},     [x0], x2
+
+        ret             x10
+endfunc
+.endm
+
+        h264_qpel8_hv_lowpass put
+        h264_qpel8_hv_lowpass avg
+
+.macro  h264_qpel8_hv_lowpass_l2 type
+function \type\()_h264_qpel8_hv_lowpass_l2_neon
+        mov             x10, x30
+        bl              put_h264_qpel8_hv_lowpass_neon_top
+
+        ld1             {v0.8B, v1.8B},  [x2], #16
+        ld1             {v2.8B, v3.8B},  [x2], #16
+        urhadd          v0.8B,  v0.8B,  v16.8B
+        urhadd          v1.8B,  v1.8B,  v17.8B
+        ld1             {v4.8B, v5.8B},  [x2], #16
+        urhadd          v2.8B,  v2.8B,  v18.8B
+        urhadd          v3.8B,  v3.8B,  v19.8B
+        ld1             {v6.8B, v7.8B},  [x2], #16
+        urhadd          v4.8B,  v4.8B,  v20.8B
+        urhadd          v5.8B,  v5.8B,  v21.8B
+        urhadd          v6.8B,  v6.8B,  v22.8B
+        urhadd          v7.8B,  v7.8B,  v23.8B
+  .ifc \type,avg
+        ld1             {v16.8B},     [x0], x3
+        urhadd          v0.8B,  v0.8B,  v16.8B
+        ld1             {v17.8B},     [x0], x3
+        urhadd          v1.8B,  v1.8B,  v17.8B
+        ld1             {v18.8B},     [x0], x3
+        urhadd          v2.8B,  v2.8B,  v18.8B
+        ld1             {v19.8B},     [x0], x3
+        urhadd          v3.8B,  v3.8B,  v19.8B
+        ld1             {v20.8B},     [x0], x3
+        urhadd          v4.8B,  v4.8B,  v20.8B
+        ld1             {v21.8B},     [x0], x3
+        urhadd          v5.8B,  v5.8B,  v21.8B
+        ld1             {v22.8B},     [x0], x3
+        urhadd          v6.8B,  v6.8B,  v22.8B
+        ld1             {v23.8B},     [x0], x3
+        urhadd          v7.8B,  v7.8B,  v23.8B
+        sub             x0,  x0,  x3,  lsl #3
+  .endif
+        st1             {v0.8B},      [x0], x3
+        st1             {v1.8B},      [x0], x3
+        st1             {v2.8B},      [x0], x3
+        st1             {v3.8B},      [x0], x3
+        st1             {v4.8B},      [x0], x3
+        st1             {v5.8B},      [x0], x3
+        st1             {v6.8B},      [x0], x3
+        st1             {v7.8B},      [x0], x3
+
+        ret             x10
+endfunc
+.endm
+
+        h264_qpel8_hv_lowpass_l2 put
+        h264_qpel8_hv_lowpass_l2 avg
+
+.macro  h264_qpel16_hv  type
+function \type\()_h264_qpel16_hv_lowpass_neon
+        mov             x13, x30
+        bl              \type\()_h264_qpel8_hv_lowpass_neon
+        sub             x1,  x1,  x3, lsl #2
+        bl              \type\()_h264_qpel8_hv_lowpass_neon
+        sub             x1,  x1,  x3, lsl #4
+        sub             x1,  x1,  x3, lsl #2
+        add             x1,  x1,  #8
+        sub             x0,  x0,  x2, lsl #4
+        add             x0,  x0,  #8
+        bl              \type\()_h264_qpel8_hv_lowpass_neon
+        sub             x1,  x1,  x3, lsl #2
+        mov             x30, x13
+        b               \type\()_h264_qpel8_hv_lowpass_neon
+endfunc
+
+function \type\()_h264_qpel16_hv_lowpass_l2_neon
+        mov             x13, x30
+        sub             x2,  x4,  #256
+        bl              \type\()_h264_qpel8_hv_lowpass_l2_neon
+        sub             x1,  x1,  x3, lsl #2
+        bl              \type\()_h264_qpel8_hv_lowpass_l2_neon
+        sub             x1,  x1,  x3, lsl #4
+        sub             x1,  x1,  x3, lsl #2
+        add             x1,  x1,  #8
+        sub             x0,  x0,  x3, lsl #4
+        add             x0,  x0,  #8
+        bl              \type\()_h264_qpel8_hv_lowpass_l2_neon
+        sub             x1,  x1,  x3, lsl #2
+        mov             x30, x13
+        b               \type\()_h264_qpel8_hv_lowpass_l2_neon
+endfunc
+.endm
+
+        h264_qpel16_hv put
+        h264_qpel16_hv avg
+
+.macro  h264_qpel8      type
+function ff_\type\()_h264_qpel8_mc10_neon, export=1
+        lowpass_const   w3
+        mov             x3,  x1
+        sub             x1,  x1,  #2
+        mov             x12, #8
+        b               \type\()_h264_qpel8_h_lowpass_l2_neon
+endfunc
+
+function ff_\type\()_h264_qpel8_mc20_neon, export=1
+        lowpass_const   w3
+        sub             x1,  x1,  #2
+        mov             x3,  x2
+        mov             x12, #8
+        b               \type\()_h264_qpel8_h_lowpass_neon
+endfunc
+
+function ff_\type\()_h264_qpel8_mc30_neon, export=1
+        lowpass_const   w3
+        add             x3,  x1,  #1
+        sub             x1,  x1,  #2
+        mov             x12, #8
+        b               \type\()_h264_qpel8_h_lowpass_l2_neon
+endfunc
+
+function ff_\type\()_h264_qpel8_mc01_neon, export=1
+        mov             x14, x30
+        mov             x12, x1
+\type\()_h264_qpel8_mc01:
+        lowpass_const   w3
+        mov             x3,  x2
+        sub             x1,  x1,  x2, lsl #1
+        bl              \type\()_h264_qpel8_v_lowpass_l2_neon
+        ret             x14
+endfunc
+
+function ff_\type\()_h264_qpel8_mc11_neon, export=1
+        mov             x14, x30
+        mov             x8,  x0
+        mov             x9,  x1
+\type\()_h264_qpel8_mc11:
+        lowpass_const   w3
+        mov             x11, sp
+        sub             sp,  sp,  #64
+        mov             x0,  sp
+        sub             x1,  x1,  #2
+        mov             x3,  #8
+        mov             x12, #8
+        bl              put_h264_qpel8_h_lowpass_neon
+        mov             x0,  x8
+        mov             x3,  x2
+        mov             x12, sp
+        sub             x1,  x9,  x2, lsl #1
+        mov             x2,  #8
+        bl              \type\()_h264_qpel8_v_lowpass_l2_neon
+        mov             sp,  x11
+        ret             x14
+endfunc
+
+function ff_\type\()_h264_qpel8_mc21_neon, export=1
+        mov             x14, x30
+        mov             x8,  x0
+        mov             x9,  x1
+\type\()_h264_qpel8_mc21:
+        lowpass_const   w3
+        mov             x11, sp
+        sub             sp,  sp,  #(8*8+16*12)
+        sub             x1,  x1,  #2
+        mov             x3,  #8
+        mov             x0,  sp
+        mov             x12, #8
+        bl              put_h264_qpel8_h_lowpass_neon
+        mov             x4,  x0
+        mov             x0,  x8
+        sub             x1,  x9,  x2, lsl #1
+        sub             x1,  x1,  #2
+        mov             x3,  x2
+        sub             x2,  x4,  #64
+        bl              \type\()_h264_qpel8_hv_lowpass_l2_neon
+        mov             sp,  x11
+        ret             x14
+endfunc
+
+function ff_\type\()_h264_qpel8_mc31_neon, export=1
+        add             x1,  x1,  #1
+        mov             x14, x30
+        mov             x8,  x0
+        mov             x9,  x1
+        sub             x1,  x1,  #1
+        b               \type\()_h264_qpel8_mc11
+endfunc
+
+function ff_\type\()_h264_qpel8_mc02_neon, export=1
+        mov             x14, x30
+        lowpass_const   w3
+        sub             x1,  x1,  x2, lsl #1
+        mov             x3,  x2
+        bl              \type\()_h264_qpel8_v_lowpass_neon
+        ret             x14
+endfunc
+
+function ff_\type\()_h264_qpel8_mc12_neon, export=1
+        mov             x14, x30
+        mov             x8,  x0
+        mov             x9,  x1
+\type\()_h264_qpel8_mc12:
+        lowpass_const   w3
+        mov             x11, sp
+        sub             sp,  sp,  #(8*8+16*12)
+        sub             x1,  x1,  x2, lsl #1
+        mov             x3,  x2
+        mov             x2,  #8
+        mov             x0,  sp
+        bl              put_h264_qpel8_v_lowpass_neon
+        mov             x4,  x0
+        mov             x0,  x8
+        sub             x1,  x9,  x3, lsl #1
+        sub             x1,  x1,  #2
+        sub             x2,  x4,  #64
+        bl              \type\()_h264_qpel8_hv_lowpass_l2_neon
+        mov             sp,  x11
+        ret             x14
+endfunc
+
+function ff_\type\()_h264_qpel8_mc22_neon, export=1
+        mov             x14, x30
+        mov             x11, sp
+        sub             x1,  x1,  x2, lsl #1
+        sub             x1,  x1,  #2
+        mov             x3,  x2
+        bl              \type\()_h264_qpel8_hv_lowpass_neon
+        mov             sp,  x11
+        ret             x14
+endfunc
+
+function ff_\type\()_h264_qpel8_mc32_neon, export=1
+        mov             x14, x30
+        mov             x8,  x0
+        mov             x9,  x1
+        add             x1,  x1,  #1
+        b               \type\()_h264_qpel8_mc12
+endfunc
+
+function ff_\type\()_h264_qpel8_mc03_neon, export=1
+        mov             x14, x30
+        add             x12, x1,  x2
+        b               \type\()_h264_qpel8_mc01
+endfunc
+
+function ff_\type\()_h264_qpel8_mc13_neon, export=1
+        mov             x14, x30
+        mov             x8,  x0
+        mov             x9,  x1
+        add             x1,  x1,  x2
+        b               \type\()_h264_qpel8_mc11
+endfunc
+
+function ff_\type\()_h264_qpel8_mc23_neon, export=1
+        mov             x14, x30
+        mov             x8,  x0
+        mov             x9,  x1
+        add             x1,  x1,  x2
+        b               \type\()_h264_qpel8_mc21
+endfunc
+
+function ff_\type\()_h264_qpel8_mc33_neon, export=1
+        add             x1,  x1,  #1
+        mov             x14, x30
+        mov             x8,  x0
+        mov             x9,  x1
+        add             x1,  x1,  x2
+        sub             x1,  x1,  #1
+        b               \type\()_h264_qpel8_mc11
+endfunc
+.endm
+
+        h264_qpel8 put
+        h264_qpel8 avg
+
+.macro  h264_qpel16     type
+function ff_\type\()_h264_qpel16_mc10_neon, export=1
+        lowpass_const   w3
+        mov             x3,  x1
+        sub             x1,  x1,  #2
+        b               \type\()_h264_qpel16_h_lowpass_l2_neon
+endfunc
+
+function ff_\type\()_h264_qpel16_mc20_neon, export=1
+        lowpass_const   w3
+        sub             x1,  x1,  #2
+        mov             x3,  x2
+        b               \type\()_h264_qpel16_h_lowpass_neon
+endfunc
+
+function ff_\type\()_h264_qpel16_mc30_neon, export=1
+        lowpass_const   w3
+        add             x3,  x1,  #1
+        sub             x1,  x1,  #2
+        b               \type\()_h264_qpel16_h_lowpass_l2_neon
+endfunc
+
+function ff_\type\()_h264_qpel16_mc01_neon, export=1
+        mov             x14, x30
+        mov             x12, x1
+\type\()_h264_qpel16_mc01:
+        lowpass_const   w3
+        mov             x3,  x2
+        sub             x1,  x1,  x2, lsl #1
+        bl              \type\()_h264_qpel16_v_lowpass_l2_neon
+        ret             x14
+endfunc
+
+function ff_\type\()_h264_qpel16_mc11_neon, export=1
+        mov             x14, x30
+        mov             x8,  x0
+        mov             x9,  x1
+\type\()_h264_qpel16_mc11:
+        lowpass_const   w3
+        mov             x11, sp
+        sub             sp,  sp,  #256
+        mov             x0,  sp
+        sub             x1,  x1,  #2
+        mov             x3,  #16
+        bl              put_h264_qpel16_h_lowpass_neon
+        mov             x0,  x8
+        mov             x3,  x2
+        mov             x12, sp
+        sub             x1,  x9,  x2, lsl #1
+        mov             x2,  #16
+        bl              \type\()_h264_qpel16_v_lowpass_l2_neon
+        mov             sp,  x11
+        ret             x14
+endfunc
+
+function ff_\type\()_h264_qpel16_mc21_neon, export=1
+        mov             x14, x30
+        mov             x8,  x0
+        mov             x9,  x1
+\type\()_h264_qpel16_mc21:
+        lowpass_const   w3
+        mov             x11, sp
+        sub             sp,  sp,  #(16*16+16*12)
+        sub             x1,  x1,  #2
+        mov             x0,  sp
+        bl              put_h264_qpel16_h_lowpass_neon_packed
+        mov             x4,  x0
+        mov             x0,  x8
+        sub             x1,  x9,  x2, lsl #1
+        sub             x1,  x1,  #2
+        mov             x3,  x2
+        bl              \type\()_h264_qpel16_hv_lowpass_l2_neon
+        mov             sp,  x11
+        ret             x14
+endfunc
+
+function ff_\type\()_h264_qpel16_mc31_neon, export=1
+        add             x1,  x1,  #1
+        mov             x14, x30
+        mov             x8,  x0
+        mov             x9,  x1
+        sub             x1,  x1,  #1
+        b               \type\()_h264_qpel16_mc11
+endfunc
+
+function ff_\type\()_h264_qpel16_mc02_neon, export=1
+        mov             x14, x30
+        lowpass_const   w3
+        sub             x1,  x1,  x2, lsl #1
+        mov             x3,  x2
+        bl              \type\()_h264_qpel16_v_lowpass_neon
+        ret             x14
+endfunc
+
+function ff_\type\()_h264_qpel16_mc12_neon, export=1
+        mov             x14, x30
+        mov             x8,  x0
+        mov             x9,  x1
+\type\()_h264_qpel16_mc12:
+        lowpass_const   w3
+        mov             x11, sp
+        sub             sp,  sp,  #(16*16+16*12)
+        sub             x1,  x1,  x2, lsl #1
+        mov             x0,  sp
+        mov             x3,  x2
+        bl              put_h264_qpel16_v_lowpass_neon_packed
+        mov             x4,  x0
+        mov             x0,  x8
+        sub             x1,  x9,  x3, lsl #1
+        sub             x1,  x1,  #2
+        mov             x2,  x3
+        bl              \type\()_h264_qpel16_hv_lowpass_l2_neon
+        mov             sp,  x11
+        ret             x14
+endfunc
+
+function ff_\type\()_h264_qpel16_mc22_neon, export=1
+        mov             x14, x30
+        lowpass_const   w3
+        mov             x11, sp
+        sub             x1,  x1,  x2, lsl #1
+        sub             x1,  x1,  #2
+        mov             x3,  x2
+        bl              \type\()_h264_qpel16_hv_lowpass_neon
+        mov             sp,  x11 // restore stack
+        ret             x14
+endfunc
+
+function ff_\type\()_h264_qpel16_mc32_neon, export=1
+        mov             x14, x30
+        mov             x8,  x0
+        mov             x9,  x1
+        add             x1,  x1,  #1
+        b               \type\()_h264_qpel16_mc12
+endfunc
+
+function ff_\type\()_h264_qpel16_mc03_neon, export=1
+        mov             x14, x30
+        add             x12, x1,  x2
+        b               \type\()_h264_qpel16_mc01
+endfunc
+
+function ff_\type\()_h264_qpel16_mc13_neon, export=1
+        mov             x14, x30
+        mov             x8,  x0
+        mov             x9,  x1
+        add             x1,  x1,  x2
+        b               \type\()_h264_qpel16_mc11
+endfunc
+
+function ff_\type\()_h264_qpel16_mc23_neon, export=1
+        mov             x14, x30
+        mov             x8,  x0
+        mov             x9,  x1
+        add             x1,  x1,  x2
+        b               \type\()_h264_qpel16_mc21
+endfunc
+
+function ff_\type\()_h264_qpel16_mc33_neon, export=1
+        add             x1,  x1,  #1
+        mov             x14, x30
+        mov             x8,  x0
+        mov             x9,  x1
+        add             x1,  x1,  x2
+        sub             x1,  x1,  #1
+        b               \type\()_h264_qpel16_mc11
+endfunc
+.endm
+
+        h264_qpel16 put
+        h264_qpel16 avg

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/hpeldsp_init_aarch64.c

@@ -0,0 +1,123 @@
+/*
+ * ARM NEON optimised DSP functions
+ * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "config.h"
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/aarch64/cpu.h"
+#include "libavcodec/hpeldsp.h"
+
+void     ff_put_pixels16_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void  ff_put_pixels16_x2_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void  ff_put_pixels16_y2_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void ff_put_pixels16_xy2_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void      ff_put_pixels8_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void   ff_put_pixels8_x2_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void   ff_put_pixels8_y2_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void  ff_put_pixels8_xy2_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+
+void  ff_put_pixels16_x2_no_rnd_neon(uint8_t *block, const uint8_t *pixels,
+                                     ptrdiff_t line_size, int h);
+void  ff_put_pixels16_y2_no_rnd_neon(uint8_t *block, const uint8_t *pixels,
+                                     ptrdiff_t line_size, int h);
+void ff_put_pixels16_xy2_no_rnd_neon(uint8_t *block, const uint8_t *pixels,
+                                     ptrdiff_t line_size, int h);
+void   ff_put_pixels8_x2_no_rnd_neon(uint8_t *block, const uint8_t *pixels,
+                                     ptrdiff_t line_size, int h);
+void   ff_put_pixels8_y2_no_rnd_neon(uint8_t *block, const uint8_t *pixels,
+                                     ptrdiff_t line_size, int h);
+void  ff_put_pixels8_xy2_no_rnd_neon(uint8_t *block, const uint8_t *pixels,
+                                     ptrdiff_t line_size, int h);
+
+void     ff_avg_pixels16_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void  ff_avg_pixels16_x2_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void  ff_avg_pixels16_y2_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void ff_avg_pixels16_xy2_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void      ff_avg_pixels8_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void   ff_avg_pixels8_x2_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void   ff_avg_pixels8_y2_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+void  ff_avg_pixels8_xy2_neon(uint8_t *block, const uint8_t *pixels,
+                              ptrdiff_t line_size, int h);
+
+void  ff_avg_pixels16_x2_no_rnd_neon(uint8_t *block, const uint8_t *pixels,
+                                     ptrdiff_t line_size, int h);
+void  ff_avg_pixels16_y2_no_rnd_neon(uint8_t *block, const uint8_t *pixels,
+                                     ptrdiff_t line_size, int h);
+void ff_avg_pixels16_xy2_no_rnd_neon(uint8_t *block, const uint8_t *pixels,
+                                     ptrdiff_t line_size, int h);
+
+av_cold void ff_hpeldsp_init_aarch64(HpelDSPContext *c, int flags)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags)) {
+        c->put_pixels_tab[0][0] = ff_put_pixels16_neon;
+        c->put_pixels_tab[0][1] = ff_put_pixels16_x2_neon;
+        c->put_pixels_tab[0][2] = ff_put_pixels16_y2_neon;
+        c->put_pixels_tab[0][3] = ff_put_pixels16_xy2_neon;
+        c->put_pixels_tab[1][0] = ff_put_pixels8_neon;
+        c->put_pixels_tab[1][1] = ff_put_pixels8_x2_neon;
+        c->put_pixels_tab[1][2] = ff_put_pixels8_y2_neon;
+        c->put_pixels_tab[1][3] = ff_put_pixels8_xy2_neon;
+
+        c->put_no_rnd_pixels_tab[0][0] = ff_put_pixels16_neon;
+        c->put_no_rnd_pixels_tab[0][1] = ff_put_pixels16_x2_no_rnd_neon;
+        c->put_no_rnd_pixels_tab[0][2] = ff_put_pixels16_y2_no_rnd_neon;
+        c->put_no_rnd_pixels_tab[0][3] = ff_put_pixels16_xy2_no_rnd_neon;
+        c->put_no_rnd_pixels_tab[1][0] = ff_put_pixels8_neon;
+        c->put_no_rnd_pixels_tab[1][1] = ff_put_pixels8_x2_no_rnd_neon;
+        c->put_no_rnd_pixels_tab[1][2] = ff_put_pixels8_y2_no_rnd_neon;
+        c->put_no_rnd_pixels_tab[1][3] = ff_put_pixels8_xy2_no_rnd_neon;
+
+        c->avg_pixels_tab[0][0] = ff_avg_pixels16_neon;
+        c->avg_pixels_tab[0][1] = ff_avg_pixels16_x2_neon;
+        c->avg_pixels_tab[0][2] = ff_avg_pixels16_y2_neon;
+        c->avg_pixels_tab[0][3] = ff_avg_pixels16_xy2_neon;
+        c->avg_pixels_tab[1][0] = ff_avg_pixels8_neon;
+        c->avg_pixels_tab[1][1] = ff_avg_pixels8_x2_neon;
+        c->avg_pixels_tab[1][2] = ff_avg_pixels8_y2_neon;
+        c->avg_pixels_tab[1][3] = ff_avg_pixels8_xy2_neon;
+
+        c->avg_no_rnd_pixels_tab[0] = ff_avg_pixels16_neon;
+        c->avg_no_rnd_pixels_tab[1] = ff_avg_pixels16_x2_no_rnd_neon;
+        c->avg_no_rnd_pixels_tab[2] = ff_avg_pixels16_y2_no_rnd_neon;
+        c->avg_no_rnd_pixels_tab[3] = ff_avg_pixels16_xy2_no_rnd_neon;
+    }
+}

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/hpeldsp_neon.S

@@ -0,0 +1,397 @@
+/*
+ * ARM NEON optimised DSP functions
+ * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
+ * Copyright (c) 2013 Janne Grunau <janne-libav@jannau.net>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/aarch64/asm.S"
+
+.macro  pixels16        rnd=1, avg=0
+  .if \avg
+        mov             x12, x0
+  .endif
+1:      ld1             {v0.16B},  [x1], x2
+        ld1             {v1.16B},  [x1], x2
+        ld1             {v2.16B},  [x1], x2
+        ld1             {v3.16B},  [x1], x2
+  .if \avg
+        ld1             {v4.16B},  [x12], x2
+        urhadd          v0.16B,  v0.16B,  v4.16B
+        ld1             {v5.16B},  [x12], x2
+        urhadd          v1.16B,  v1.16B,  v5.16B
+        ld1             {v6.16B},  [x12], x2
+        urhadd          v2.16B,  v2.16B,  v6.16B
+        ld1             {v7.16B},  [x12], x2
+        urhadd          v3.16B,  v3.16B,  v7.16B
+  .endif
+        subs            w3,  w3,  #4
+        st1             {v0.16B},  [x0], x2
+        st1             {v1.16B},  [x0], x2
+        st1             {v2.16B},  [x0], x2
+        st1             {v3.16B},  [x0], x2
+        b.ne            1b
+        ret
+.endm
+
+.macro  pixels16_x2     rnd=1, avg=0
+1:      ld1             {v0.16B, v1.16B}, [x1], x2
+        ld1             {v2.16B, v3.16B}, [x1], x2
+        subs            w3,  w3,  #2
+        ext             v1.16B,  v0.16B,  v1.16B,  #1
+        avg             v0.16B,  v0.16B,  v1.16B
+        ext             v3.16B,  v2.16B,  v3.16B,  #1
+        avg             v2.16B,  v2.16B,  v3.16B
+  .if \avg
+        ld1             {v1.16B}, [x0], x2
+        ld1             {v3.16B}, [x0]
+        urhadd          v0.16B,  v0.16B,  v1.16B
+        urhadd          v2.16B,  v2.16B,  v3.16B
+        sub             x0,  x0,  x2
+  .endif
+        st1             {v0.16B}, [x0], x2
+        st1             {v2.16B}, [x0], x2
+        b.ne            1b
+        ret
+.endm
+
+.macro  pixels16_y2     rnd=1, avg=0
+        sub             w3,  w3,  #2
+        ld1             {v0.16B}, [x1], x2
+        ld1             {v1.16B}, [x1], x2
+1:      subs            w3,  w3,  #2
+        avg             v2.16B,  v0.16B,  v1.16B
+        ld1             {v0.16B}, [x1], x2
+        avg             v3.16B,  v0.16B,  v1.16B
+        ld1             {v1.16B}, [x1], x2
+  .if \avg
+        ld1             {v4.16B}, [x0], x2
+        ld1             {v5.16B}, [x0]
+        urhadd          v2.16B,  v2.16B,  v4.16B
+        urhadd          v3.16B,  v3.16B,  v5.16B
+        sub             x0,  x0,  x2
+  .endif
+        st1             {v2.16B}, [x0], x2
+        st1             {v3.16B}, [x0], x2
+        b.ne            1b
+
+        avg             v2.16B,  v0.16B,  v1.16B
+        ld1             {v0.16B}, [x1], x2
+        avg             v3.16B,  v0.16B,  v1.16B
+  .if \avg
+        ld1             {v4.16B}, [x0], x2
+        ld1             {v5.16B}, [x0]
+        urhadd          v2.16B,  v2.16B,  v4.16B
+        urhadd          v3.16B,  v3.16B,  v5.16B
+        sub             x0,  x0,  x2
+  .endif
+        st1             {v2.16B},     [x0], x2
+        st1             {v3.16B},     [x0], x2
+
+        ret
+.endm
+
+.macro  pixels16_xy2    rnd=1, avg=0
+        sub             w3,  w3,  #2
+        ld1             {v0.16B, v1.16B}, [x1], x2
+        ld1             {v4.16B, v5.16B}, [x1], x2
+NRND    movi            v26.8H, #1
+        ext             v1.16B,  v0.16B,  v1.16B,  #1
+        ext             v5.16B,  v4.16B,  v5.16B,  #1
+        uaddl           v16.8H,  v0.8B,   v1.8B
+        uaddl2          v20.8H,  v0.16B,  v1.16B
+        uaddl           v18.8H,  v4.8B,   v5.8B
+        uaddl2          v22.8H,  v4.16B,  v5.16B
+1:      subs            w3,  w3,  #2
+        ld1             {v0.16B, v1.16B}, [x1], x2
+        add             v24.8H,  v16.8H,  v18.8H
+NRND    add             v24.8H,  v24.8H,  v26.8H
+        ext             v30.16B, v0.16B,  v1.16B,  #1
+        add             v1.8H,   v20.8H,  v22.8H
+        mshrn           v28.8B,  v24.8H,  #2
+NRND    add             v1.8H,   v1.8H,   v26.8H
+        mshrn2          v28.16B, v1.8H,   #2
+  .if \avg
+        ld1             {v16.16B},        [x0]
+        urhadd          v28.16B, v28.16B, v16.16B
+  .endif
+        uaddl           v16.8H,  v0.8B,   v30.8B
+        ld1             {v2.16B, v3.16B}, [x1], x2
+        uaddl2          v20.8H,  v0.16B,  v30.16B
+        st1             {v28.16B},        [x0], x2
+        add             v24.8H,  v16.8H,  v18.8H
+NRND    add             v24.8H,  v24.8H,  v26.8H
+        ext             v3.16B,  v2.16B,  v3.16B,  #1
+        add             v0.8H,   v20.8H,  v22.8H
+        mshrn           v30.8B,  v24.8H,  #2
+NRND    add             v0.8H,   v0.8H,   v26.8H
+        mshrn2          v30.16B, v0.8H,   #2
+  .if \avg
+        ld1             {v18.16B},        [x0]
+        urhadd          v30.16B, v30.16B, v18.16B
+  .endif
+        uaddl           v18.8H,   v2.8B,  v3.8B
+        uaddl2          v22.8H,   v2.16B, v3.16B
+        st1             {v30.16B},        [x0], x2
+        b.gt            1b
+
+        ld1             {v0.16B, v1.16B}, [x1], x2
+        add             v24.8H,  v16.8H,  v18.8H
+NRND    add             v24.8H,  v24.8H,  v26.8H
+        ext             v30.16B, v0.16B,  v1.16B,  #1
+        add             v1.8H,   v20.8H,  v22.8H
+        mshrn           v28.8B,  v24.8H,  #2
+NRND    add             v1.8H,   v1.8H,   v26.8H
+        mshrn2          v28.16B, v1.8H,   #2
+  .if \avg
+        ld1             {v16.16B},        [x0]
+        urhadd          v28.16B, v28.16B, v16.16B
+  .endif
+        uaddl           v16.8H,  v0.8B,   v30.8B
+        uaddl2          v20.8H,  v0.16B,  v30.16B
+        st1             {v28.16B},        [x0], x2
+        add             v24.8H,  v16.8H,  v18.8H
+NRND    add             v24.8H,  v24.8H,  v26.8H
+        add             v0.8H,   v20.8H,  v22.8H
+        mshrn           v30.8B,  v24.8H,  #2
+NRND    add             v0.8H,   v0.8H,   v26.8H
+        mshrn2          v30.16B, v0.8H,   #2
+  .if \avg
+        ld1             {v18.16B},        [x0]
+        urhadd          v30.16B, v30.16B, v18.16B
+  .endif
+        st1             {v30.16B},        [x0], x2
+
+        ret
+.endm
+
+.macro  pixels8         rnd=1, avg=0
+1:      ld1             {v0.8B}, [x1], x2
+        ld1             {v1.8B}, [x1], x2
+        ld1             {v2.8B}, [x1], x2
+        ld1             {v3.8B}, [x1], x2
+  .if \avg
+        ld1             {v4.8B}, [x0], x2
+        urhadd          v0.8B,  v0.8B,  v4.8B
+        ld1             {v5.8B}, [x0], x2
+        urhadd          v1.8B,  v1.8B,  v5.8B
+        ld1             {v6.8B}, [x0], x2
+        urhadd          v2.8B,  v2.8B,  v6.8B
+        ld1             {v7.8B}, [x0], x2
+        urhadd          v3.8B,  v3.8B,  v7.8B
+        sub             x0,  x0,  x2,  lsl #2
+  .endif
+        subs            w3,  w3,  #4
+        st1             {v0.8B}, [x0], x2
+        st1             {v1.8B}, [x0], x2
+        st1             {v2.8B}, [x0], x2
+        st1             {v3.8B}, [x0], x2
+        b.ne            1b
+        ret
+.endm
+
+.macro  pixels8_x2      rnd=1, avg=0
+1:      ld1             {v0.8B, v1.8B}, [x1], x2
+        ext             v1.8B,  v0.8B,  v1.8B,  #1
+        ld1             {v2.8B, v3.8B}, [x1], x2
+        ext             v3.8B,  v2.8B,  v3.8B,  #1
+        subs            w3,  w3,  #2
+        avg             v0.8B,   v0.8B,   v1.8B
+        avg             v2.8B,   v2.8B,   v3.8B
+  .if \avg
+        ld1             {v4.8B},     [x0], x2
+        ld1             {v5.8B},     [x0]
+        urhadd          v0.8B,   v0.8B,   v4.8B
+        urhadd          v2.8B,   v2.8B,   v5.8B
+        sub             x0,  x0,  x2
+  .endif
+        st1             {v0.8B}, [x0], x2
+        st1             {v2.8B}, [x0], x2
+        b.ne            1b
+        ret
+.endm
+
+.macro  pixels8_y2      rnd=1, avg=0
+        sub             w3,  w3,  #2
+        ld1             {v0.8B},  [x1], x2
+        ld1             {v1.8B},  [x1], x2
+1:      subs            w3,  w3,  #2
+        avg             v4.8B,  v0.8B,  v1.8B
+        ld1             {v0.8B},  [x1], x2
+        avg             v5.8B,  v0.8B,  v1.8B
+        ld1             {v1.8B},  [x1], x2
+  .if \avg
+        ld1             {v2.8B},     [x0], x2
+        ld1             {v3.8B},     [x0]
+        urhadd          v4.8B,  v4.8B,  v2.8B
+        urhadd          v5.8B,  v5.8B,  v3.8B
+        sub             x0,  x0,  x2
+  .endif
+        st1             {v4.8B},     [x0], x2
+        st1             {v5.8B},     [x0], x2
+        b.ne            1b
+
+        avg             v4.8B,  v0.8B,  v1.8B
+        ld1             {v0.8B},  [x1], x2
+        avg             v5.8B,  v0.8B,  v1.8B
+  .if \avg
+        ld1             {v2.8B},     [x0], x2
+        ld1             {v3.8B},     [x0]
+        urhadd          v4.8B,  v4.8B,  v2.8B
+        urhadd          v5.8B,  v5.8B,  v3.8B
+        sub             x0,  x0,  x2
+  .endif
+        st1             {v4.8B},     [x0], x2
+        st1             {v5.8B},     [x0], x2
+
+        ret
+.endm
+
+.macro  pixels8_xy2     rnd=1, avg=0
+        sub             w3,  w3,  #2
+        ld1             {v0.16B},     [x1], x2
+        ld1             {v1.16B},     [x1], x2
+NRND    movi            v19.8H, #1
+        ext             v4.16B,  v0.16B,  v4.16B,  #1
+        ext             v6.16B,  v1.16B,  v6.16B,  #1
+        uaddl           v16.8H,  v0.8B,  v4.8B
+        uaddl           v17.8H,  v1.8B,  v6.8B
+1:      subs            w3,  w3,  #2
+        ld1             {v0.16B},     [x1], x2
+        add             v18.8H, v16.8H,  v17.8H
+        ext             v4.16B,  v0.16B,  v4.16B,  #1
+NRND    add             v18.8H, v18.8H, v19.8H
+        uaddl           v16.8H,  v0.8B,  v4.8B
+        mshrn           v5.8B,  v18.8H, #2
+        ld1             {v1.16B},     [x1], x2
+        add             v18.8H, v16.8H,  v17.8H
+  .if \avg
+        ld1             {v7.8B},     [x0]
+        urhadd          v5.8B,  v5.8B,  v7.8B
+  .endif
+NRND    add             v18.8H, v18.8H, v19.8H
+        st1             {v5.8B},     [x0], x2
+        mshrn           v7.8B,  v18.8H, #2
+  .if \avg
+        ld1             {v5.8B},     [x0]
+        urhadd          v7.8B,  v7.8B,  v5.8B
+  .endif
+        ext             v6.16B,  v1.16B,  v6.16B,  #1
+        uaddl           v17.8H,  v1.8B,   v6.8B
+        st1             {v7.8B},     [x0], x2
+        b.gt            1b
+
+        ld1             {v0.16B},     [x1], x2
+        add             v18.8H, v16.8H, v17.8H
+        ext             v4.16B, v0.16B, v4.16B,  #1
+NRND    add             v18.8H, v18.8H, v19.8H
+        uaddl           v16.8H,  v0.8B, v4.8B
+        mshrn           v5.8B,  v18.8H, #2
+        add             v18.8H, v16.8H, v17.8H
+  .if \avg
+        ld1             {v7.8B},     [x0]
+        urhadd          v5.8B,  v5.8B,  v7.8B
+  .endif
+NRND    add             v18.8H, v18.8H, v19.8H
+        st1             {v5.8B},     [x0], x2
+        mshrn           v7.8B,  v18.8H, #2
+  .if \avg
+        ld1             {v5.8B},     [x0]
+        urhadd          v7.8B,  v7.8B,  v5.8B
+  .endif
+        st1             {v7.8B},     [x0], x2
+
+        ret
+.endm
+
+.macro  pixfunc         pfx, name, suf, rnd=1, avg=0
+  .if \rnd
+    .macro avg  rd, rn, rm
+        urhadd          \rd, \rn, \rm
+    .endm
+    .macro mshrn rd, rn, rm
+        rshrn           \rd, \rn, \rm
+    .endm
+    .macro mshrn2 rd, rn, rm
+        rshrn2          \rd, \rn, \rm
+    .endm
+    .macro NRND insn:vararg
+    .endm
+  .else
+    .macro avg  rd, rn, rm
+        uhadd           \rd, \rn, \rm
+    .endm
+    .macro mshrn rd, rn, rm
+        shrn            \rd, \rn, \rm
+    .endm
+    .macro mshrn2 rd, rn, rm
+        shrn2           \rd, \rn, \rm
+    .endm
+    .macro NRND insn:vararg
+        \insn
+    .endm
+  .endif
+function ff_\pfx\name\suf\()_neon, export=1
+        \name           \rnd, \avg
+endfunc
+        .purgem         avg
+        .purgem         mshrn
+        .purgem         mshrn2
+        .purgem         NRND
+.endm
+
+.macro  pixfunc2        pfx, name, avg=0
+        pixfunc         \pfx, \name,          rnd=1, avg=\avg
+        pixfunc         \pfx, \name, _no_rnd, rnd=0, avg=\avg
+.endm
+
+function ff_put_h264_qpel16_mc00_neon, export=1
+        mov             w3,  #16
+endfunc
+
+        pixfunc         put_, pixels16,     avg=0
+        pixfunc2        put_, pixels16_x2,  avg=0
+        pixfunc2        put_, pixels16_y2,  avg=0
+        pixfunc2        put_, pixels16_xy2, avg=0
+
+function ff_avg_h264_qpel16_mc00_neon, export=1
+        mov             w3,  #16
+endfunc
+
+        pixfunc         avg_, pixels16,     avg=1
+        pixfunc2        avg_, pixels16_x2,  avg=1
+        pixfunc2        avg_, pixels16_y2,  avg=1
+        pixfunc2        avg_, pixels16_xy2, avg=1
+
+function ff_put_h264_qpel8_mc00_neon, export=1
+        mov             w3,  #8
+endfunc
+
+        pixfunc         put_, pixels8,     avg=0
+        pixfunc2        put_, pixels8_x2,  avg=0
+        pixfunc2        put_, pixels8_y2,  avg=0
+        pixfunc2        put_, pixels8_xy2, avg=0
+
+function ff_avg_h264_qpel8_mc00_neon, export=1
+        mov             w3,  #8
+endfunc
+
+        pixfunc         avg_, pixels8,     avg=1
+        pixfunc         avg_, pixels8_x2,  avg=1
+        pixfunc         avg_, pixels8_y2,  avg=1
+        pixfunc         avg_, pixels8_xy2, avg=1

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/imdct15_init.c

@@ -0,0 +1,46 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stddef.h>
+
+#include "libavutil/cpu.h"
+#include "libavutil/aarch64/cpu.h"
+#include "libavutil/internal.h"
+
+#include "libavcodec/imdct15.h"
+
+#include "asm-offsets.h"
+
+AV_CHECK_OFFSET(IMDCT15Context, exptab,         CELT_EXPTAB);
+AV_CHECK_OFFSET(IMDCT15Context, fft_n,          CELT_FFT_N);
+AV_CHECK_OFFSET(IMDCT15Context, len2,           CELT_LEN2);
+AV_CHECK_OFFSET(IMDCT15Context, len4,           CELT_LEN4);
+AV_CHECK_OFFSET(IMDCT15Context, tmp,            CELT_TMP);
+AV_CHECK_OFFSET(IMDCT15Context, twiddle_exptab, CELT_TWIDDLE);
+
+void ff_celt_imdct_half_neon(IMDCT15Context *s, float *dst, const float *src,
+                             ptrdiff_t stride, float scale);
+
+void ff_imdct15_init_aarch64(IMDCT15Context *s)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags)) {
+        s->imdct_half = ff_celt_imdct_half_neon;
+    }
+}

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/imdct15_neon.S

@@ -0,0 +1,647 @@
+/*
+ * Copyright (c) 2014 Janne Grunau <janne-libav@jannau.net>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/aarch64/asm.S"
+
+#include "asm-offsets.h"
+
+.macro shuffle a, b, c, d
+const shuffle_\a\b\c\d, align=4
+        .byte (\a * 4), (\a * 4 + 1), (\a * 4 + 2), (\a * 4 + 3)
+        .byte (\b * 4), (\b * 4 + 1), (\b * 4 + 2), (\b * 4 + 3)
+        .byte (\c * 4), (\c * 4 + 1), (\c * 4 + 2), (\c * 4 + 3)
+        .byte (\d * 4), (\d * 4 + 1), (\d * 4 + 2), (\d * 4 + 3)
+endconst
+.endm
+
+shuffle 0, 2, 1, 3
+shuffle 1, 0, 3, 2
+shuffle 2, 3, 0, 1
+shuffle 3, 1, 2, 0
+
+
+function fft5_neon
+        lsl             x2,  x2,  #3
+        ld1             {v24.2s},         [x1],  x2
+        ld2             {v25.s,v26.s}[0], [x1],  x2
+        ld2             {v25.s,v26.s}[1], [x1],  x2
+        ld2             {v25.s,v26.s}[2], [x1],  x2
+        ld2             {v25.s,v26.s}[3], [x1]
+        dup             v6.4s,  v24.s[0]
+        dup             v7.4s,  v24.s[1]
+
+        faddp           v0.4s,  v25.4s, v26.4s
+        // z[][0], z[][3]
+        fmul            v16.4s, v25.4s, v15.s[0] // rr
+        fmul            v17.4s, v25.4s, v15.s[1] // ri
+        fmul            v18.4s, v26.4s, v15.s[0] // ir
+        fmul            v19.4s, v26.4s, v15.s[1] // ii
+        faddp           v0.4s,  v0.4s,  v0.4s
+        // z[][1], z[][2]
+        fmul            v20.4s, v25.4s, v15.s[2] // rr
+        fmul            v21.4s, v25.4s, v15.s[3] // ri
+        fmul            v22.4s, v26.4s, v15.s[2] // ir
+        fmul            v23.4s, v26.4s, v15.s[3] // ii
+        fadd            v0.2s,  v24.2s, v0.2s   // out[0]
+
+        // z[0123][0], z[0123][3]
+        fsub            v24.4s, v16.4s, v19.4s  //    (c).re =  rr - ii;
+        fadd            v27.4s, v16.4s, v19.4s  //    (d).re =  rr + ii;
+        ld1             {v16.16b},  [x11]
+        ld1             {v19.16b},  [x14]
+        fadd            v28.4s, v17.4s, v18.4s  //    (c).im =  ri + ir;
+        fsub            v31.4s, v18.4s, v17.4s  //    (d).im = -ri + ir;
+        ld1             {v17.16b},  [x12]
+        // z[0123][1], z[0123][2]
+        fsub            v25.4s, v20.4s, v23.4s  //    (c).re =  rr - ii;
+        fadd            v26.4s, v20.4s, v23.4s  //    (d).re =  rr + ii;
+        ld1             {v18.16b},  [x13]
+        fadd            v29.4s, v21.4s, v22.4s  //    (c).im =  ri + ir;
+        fsub            v30.4s, v22.4s, v21.4s  //    (d).im = -ri + ir;
+
+        //real
+        tbl             v20.16b, {v24.16b}, v16.16b
+        tbl             v21.16b, {v25.16b}, v17.16b
+        tbl             v22.16b, {v26.16b}, v18.16b
+        tbl             v23.16b, {v27.16b}, v19.16b
+        //imag
+        tbl             v16.16b, {v28.16b}, v16.16b
+        tbl             v17.16b, {v29.16b}, v17.16b
+        tbl             v18.16b, {v30.16b}, v18.16b
+        tbl             v19.16b, {v31.16b}, v19.16b
+
+        fadd            v6.4s,  v6.4s,  v20.4s
+        fadd            v22.4s, v22.4s, v23.4s
+        fadd            v7.4s,  v7.4s,  v16.4s
+        fadd            v18.4s, v18.4s, v19.4s
+
+        fadd            v21.4s, v21.4s, v22.4s
+        fadd            v17.4s, v17.4s, v18.4s
+        fadd            v6.4s,  v6.4s,  v21.4s
+        fadd            v7.4s,  v7.4s,  v17.4s
+
+        ret
+endfunc
+
+function fft15_neon
+        mov             x8,  x1
+        mov             x9,  x30
+        add             x2,  x3,  x3,  lsl #1   // 3 * stride
+
+        add             x1,  x8,  x3,  lsl #3   // in + 1 * stride
+        bl              fft5_neon
+        mov             v1.8b,   v0.8b
+        mov             v2.16b,  v6.16b
+        mov             v3.16b,  v7.16b
+
+        add             x1,  x8,  x3,  lsl #4   // in + 2 * stride
+        add             x2,  x3,  x3,  lsl #1   // 3 * stride
+        bl              fft5_neon
+        zip1            v1.4s,   v1.4s,  v0.4s
+        mov             v4.16b,  v6.16b
+        mov             v5.16b,  v7.16b
+
+        mov             x1,  x8                 // in + 0 * stride
+        add             x2,  x3,  x3,  lsl #1   // 3 * stride
+        bl              fft5_neon
+
+        faddp           v20.4s, v1.4s,  v1.4s
+
+        ext             v18.16b, v8.16b,  v8.16b,  #4
+        ext             v19.16b, v9.16b,  v9.16b,  #4
+        mov             v16.16b, v6.16b
+        mov             v17.16b, v7.16b
+        fadd            v20.2s, v20.2s, v0.2s
+
+        uzp1            v18.4s, v18.4s, v10.4s  // exp[2,4,6,8].re
+        uzp1            v19.4s, v19.4s, v11.4s  // exp[2,4,6,8].im
+
+        st1             {v20.2s},  [x0], #8     // out[0]
+
+        fmla            v16.4s, v2.4s,  v8.4s
+        fmls            v16.4s, v3.4s,  v9.4s
+
+        fmla            v17.4s, v2.4s,  v9.4s
+        fmla            v17.4s, v3.4s,  v8.4s
+
+        fmla            v16.4s, v4.4s,  v18.4s
+        fmls            v16.4s, v5.4s,  v19.4s
+
+        fmla            v17.4s, v4.4s,  v19.4s
+        fmla            v17.4s, v5.4s,  v18.4s
+
+        zip1            v18.4s, v16.4s, v17.4s
+        zip2            v19.4s, v16.4s, v17.4s
+
+        rev64           v31.4s, v14.4s
+        trn1            v28.2d, v1.2d,  v1.2d
+        trn2            v29.2d, v1.2d,  v1.2d
+        zip1            v30.2d, v14.2d, v31.2d
+        zip2            v31.2d, v14.2d, v31.2d
+
+        st1             {v18.4s,v19.4s},  [x0], #32 // out[1-4]
+
+        fmul            v16.4s, v28.4s, v30.4s
+        fmul            v17.4s, v29.4s, v30.4s
+        fmls            v16.4s, v29.4s, v31.4s
+        fmla            v17.4s, v28.4s, v31.4s
+        faddp           v16.4s, v16.4s, v16.4s
+        faddp           v17.4s, v17.4s, v17.4s
+        zip1            v18.2s, v16.2s, v17.2s
+        zip2            v19.2s, v16.2s, v17.2s
+
+        fadd            v18.2s, v18.2s, v0.2s
+        fadd            v0.2s,  v19.2s, v0.2s
+
+        ext             v30.16b, v12.16b, v12.16b, #4
+        ext             v31.16b, v13.16b, v13.16b, #4
+        mov             v16.16b, v6.16b
+        mov             v17.16b, v7.16b
+
+        uzp1            v30.4s, v30.4s, v8.4s
+        uzp1            v31.4s, v31.4s, v9.4s
+
+        st1             {v18.2s},  [x0], #8     // out[5]
+
+        fmla            v16.4s, v2.4s,  v10.4s
+        fmls            v16.4s, v3.4s,  v11.4s
+
+        fmla            v17.4s, v2.4s,  v11.4s
+        fmla            v17.4s, v3.4s,  v10.4s
+
+        fmla            v16.4s, v4.4s,  v30.4s
+        fmls            v16.4s, v5.4s,  v31.4s
+
+        fmla            v17.4s, v4.4s,  v31.4s
+        fmla            v17.4s, v5.4s,  v30.4s
+
+        zip1            v18.4s, v16.4s, v17.4s
+        zip2            v19.4s, v16.4s, v17.4s
+
+        ext             v30.16b, v10.16b, v10.16b, #4
+        ext             v31.16b, v11.16b, v11.16b, #4
+
+        fmla            v6.4s,  v2.4s,  v12.4s
+        fmls            v6.4s,  v3.4s,  v13.4s
+
+        st1             {v18.4s,v19.4s},  [x0], #32 // out[6-9]
+
+        uzp1            v30.4s, v30.4s, v12.4s
+        uzp1            v31.4s, v31.4s, v13.4s
+
+        fmla            v7.4s,  v2.4s,  v13.4s
+        fmla            v7.4s,  v3.4s,  v12.4s
+
+        st1             {v0.2s},  [x0], #8     // out[10]
+
+        fmla            v6.4s,  v4.4s,  v30.4s
+        fmls            v6.4s,  v5.4s,  v31.4s
+
+        fmla            v7.4s,  v4.4s,  v31.4s
+        fmla            v7.4s,  v5.4s,  v30.4s
+
+        zip1            v18.4s, v6.4s,  v7.4s
+        zip2            v19.4s, v6.4s,  v7.4s
+
+        st1             {v18.4s,v19.4s},  [x0], #32 // out[11-14]
+
+        ret             x9
+endfunc
+
+// x0: out, x1: out+len2, x2: exptab, x3: len2
+function fft15_pass
+        ands            x6,  x3,  #3
+        mov             x4,  x0
+        mov             x5,  x1
+        b.eq            9f
+        ld1             {v0.2s},  [x0], #8
+        ld1             {v1.2s},  [x1], #8
+        sub             x3,  x3,  x6
+        subs            x6,  x6,  #1
+        fadd            v2.2s,  v0.2s,  v1.2s
+        fsub            v3.2s,  v0.2s,  v1.2s
+        add             x2,  x2,  #8
+        st1             {v2.2s},  [x4], #8
+        st1             {v3.2s},  [x5], #8
+        b.eq            9f
+1:
+        subs            x6,  x6,  #1
+        ldp             s4,  s5,  [x2], #8
+        ldp             s2,  s3,  [x1], #8
+        ldp             s0,  s1,  [x0], #8
+
+        fmul            s6,  s2,  s4
+        fmul            s7,  s2,  s5
+        fmls            s6,  s3,  v5.s[0]
+        fmla            s7,  s3,  v4.s[0]
+
+        fsub            s2,  s0,  s6
+        fsub            s3,  s1,  s7
+        fadd            s0,  s0,  s6
+        fadd            s1,  s1,  s7
+
+        stp             s2,  s3,  [x5], #8
+        stp             s0,  s1,  [x4], #8
+        b.gt            1b
+9:
+        ld1             {v4.4s,v5.4s}, [x2],  #32
+        ld2             {v2.4s,v3.4s}, [x1],  #32
+        uzp1            v6.4s,  v4.4s,  v5.4s
+        uzp2            v7.4s,  v4.4s,  v5.4s
+        ld2             {v0.4s,v1.4s}, [x0],  #32
+8:
+        subs            x3,  x3,  #8
+
+        fmul            v4.4s,  v2.4s,  v6.4s
+        fmul            v5.4s,  v2.4s,  v7.4s
+        b.lt            4f
+
+        ld1             {v18.4s,v19.4s}, [x2],  #32
+
+        fmls            v4.4s,  v3.4s,  v7.4s
+        fmla            v5.4s,  v3.4s,  v6.4s
+
+        ld2             {v22.4s,v23.4s}, [x1],  #32
+
+        fsub            v2.4s,  v0.4s,  v4.4s
+        fadd            v0.4s,  v0.4s,  v4.4s
+        fsub            v3.4s,  v1.4s,  v5.4s
+        fadd            v1.4s,  v1.4s,  v5.4s
+
+        uzp1            v16.4s, v18.4s, v19.4s
+        uzp2            v17.4s, v18.4s, v19.4s
+
+        st2             {v2.4s,v3.4s}, [x5],  #32
+        st2             {v0.4s,v1.4s}, [x4],  #32
+        ld2             {v20.4s,v21.4s}, [x0],  #32
+
+        fmul            v18.4s, v22.4s, v16.4s
+        fmul            v19.4s, v22.4s, v17.4s
+        b.eq            0f
+
+        ld1             {v4.4s,v5.4s}, [x2],  #32
+
+        fmls            v18.4s, v23.4s, v17.4s
+        fmla            v19.4s, v23.4s, v16.4s
+
+        ld2             {v2.4s,v3.4s}, [x1],  #32
+
+        fsub            v22.4s, v20.4s, v18.4s
+        fadd            v20.4s, v20.4s, v18.4s
+        fsub            v23.4s, v21.4s, v19.4s
+        fadd            v21.4s, v21.4s, v19.4s
+
+        uzp1            v6.4s,  v4.4s,  v5.4s
+        uzp2            v7.4s,  v4.4s,  v5.4s
+
+        st2             {v22.4s,v23.4s}, [x5],  #32
+        st2             {v20.4s,v21.4s}, [x4],  #32
+        ld2             {v0.4s,v1.4s}, [x0],  #32
+
+        b               8b
+4:
+        fmls            v4.4s,  v3.4s,  v7.4s
+        fmla            v5.4s,  v3.4s,  v6.4s
+
+        fsub            v2.4s,  v0.4s,  v4.4s
+        fadd            v0.4s,  v0.4s,  v4.4s
+        fsub            v3.4s,  v1.4s,  v5.4s
+        fadd            v1.4s,  v1.4s,  v5.4s
+
+        st2             {v2.4s,v3.4s}, [x5],  #32
+        st2             {v0.4s,v1.4s}, [x4],  #32
+
+        ret
+0:
+        fmls            v18.4s, v23.4s, v17.4s
+        fmla            v19.4s, v23.4s, v16.4s
+
+        fsub            v22.4s, v20.4s, v18.4s
+        fadd            v20.4s, v20.4s, v18.4s
+        fsub            v23.4s, v21.4s, v19.4s
+        fadd            v21.4s, v21.4s, v19.4s
+
+        st2             {v22.4s,v23.4s}, [x5],  #32
+        st2             {v20.4s,v21.4s}, [x4],  #32
+
+        ret
+endfunc
+
+function fft30_neon, align=6
+        sub             sp,  sp,  #0x20
+        stp             x20, x21, [sp]
+        stp             x22, x30, [sp, #0x10]
+        mov             x21, x1
+        mov             x22, x2
+        mov             x20, x4
+        mov             x0,  x21
+        mov             x1,  x22
+        lsl             x3,  x20, #1
+        bl              fft15_neon
+
+        add             x0,  x21, #15*8
+        add             x1,  x22, x20,  lsl #3
+        lsl             x3,  x20, #1
+        bl              fft15_neon
+
+        ldr             x2,  [x10, #(CELT_EXPTAB + 8)]  // s->exptab[1]
+        add             x0,  x21, #0
+        add             x1,  x21, #15*8
+        mov             x3,  #15
+        ldp             x20, x21, [sp]
+        ldp             x22, x30, [sp, #0x10]
+        add             sp,  sp,  #0x20
+        b               fft15_pass
+endfunc
+
+.macro  def_fft n, n2
+function fft\n\()_neon, align=6
+        sub             sp,  sp,  #0x30
+        stp             x20, x21, [sp]
+        stp             x22, x30, [sp, #0x10]
+        stp             x23, x24, [sp, #0x20]
+        mov             x21, x1
+        mov             x22, x2
+        mov             x23, x3
+        mov             x20, x4
+        sub             x3,  x3,  #1
+        lsl             x4,  x4,  #1
+        bl              fft\n2\()_neon
+
+        add             x1,  x21, #(\n2 * 8)
+        add             x2,  x22, x20, lsl #3
+        sub             x3,  x23, #1
+        lsl             x4,  x20, #1
+        bl              fft\n2\()_neon
+
+        add             x5,  x10, #CELT_EXPTAB
+        mov             x0,  x21
+        ldr             x2,  [x5,  x23, lsl #3] // s->exptab[N]
+        add             x1,  x21, #(\n2 * 8)
+        mov             x3,  #\n2
+        ldp             x20, x21, [sp]
+        ldp             x22, x30, [sp, #0x10]
+        ldp             x23, x24, [sp, #0x20]
+        add             sp,  sp,  #0x30
+        b               fft15_pass
+endfunc
+.endm
+
+        def_fft    60,  30
+        def_fft   120,  60
+        def_fft   240, 120
+        def_fft   480, 240
+        def_fft   960, 480
+
+function fft_b15_calc_neon
+        sub             sp,  sp,  #0x50
+        ldr             x8,  [x0,  #CELT_EXPTAB]    // s->exptab[0]
+        movrel          x6,  fact5
+        movrel          x11, shuffle_0213
+        movrel          x12, shuffle_1032
+        movrel          x13, shuffle_2301
+        movrel          x14, shuffle_3120
+        add             x8,  x8,  #8
+        movrel          x5,  fft_tab_neon
+        stp             x20, x30, [sp]
+        stp             d8,  d9,  [sp, #0x10]
+        stp             d10, d11, [sp, #0x20]
+        stp             d12, d13, [sp, #0x30]
+        stp             d14, d15, [sp, #0x40]
+        ld1             {v15.4s}, [x6]
+        ld1             {v0.4s,v1.4s},   [x8],  #32
+        ld1             {v6.2s},  [x8],  #8
+        ld1             {v2.4s,v3.4s},   [x8],  #32
+        ld1             {v7.2s},  [x8],  #8
+        ld1             {v4.4s,v5.4s},   [x8],  #32
+        uzp1            v8.4s,  v0.4s,  v1.4s   // exp[ 1 -  4].re
+        uzp2            v9.4s,  v0.4s,  v1.4s   // exp[ 1 -  4].im
+        uzp1            v10.4s, v2.4s,  v3.4s   // exp[ 6 -  9].re
+        uzp2            v11.4s, v2.4s,  v3.4s   // exp[ 6 -  9].im
+        uzp1            v12.4s, v4.4s,  v5.4s   // exp[11 - 14].re
+        uzp2            v13.4s, v4.4s,  v5.4s   // exp[11 - 14].im
+        zip1            v14.4s, v6.4s,  v7.4s   // exp[5,10].re/exp[5,10].im
+        add             x5,  x5,  x3,  lsl #3
+        ldr             x5,  [x5]
+        mov             x10, x0
+        blr             x5
+        ldp             x20, x30, [sp]
+        ldp             d8,  d9,  [sp, #0x10]
+        ldp             d10, d11, [sp, #0x20]
+        ldp             d12, d13, [sp, #0x30]
+        ldp             d14, d15, [sp, #0x40]
+        add             sp,  sp,  #0x50
+        ret
+endfunc
+
+const   fft_tab_neon, relocate=1
+        .quad fft15_neon
+        .quad fft30_neon
+        .quad fft60_neon
+        .quad fft120_neon
+        .quad fft240_neon
+        .quad fft480_neon
+        .quad fft960_neon
+endconst
+
+function ff_celt_imdct_half_neon, export=1
+        sub             sp,  sp,  #0x20
+        stp             x21, x30, [sp]
+        str             s0, [sp, #0x10]
+
+        ldp             w5,  w6,  [x0,  #CELT_LEN2] // CELT_LEN4
+        mov             x10, x0
+        mov             x21, x1
+        sub             w5,  w5,  #1
+        lsl             x7,  x3,  #3            //  2 * stride * sizeof(float)
+        sub             x8,  xzr, x3,  lsl #3   // -2 * stride * sizeof(float)
+        mul             x5,  x5,  x3
+        ldp             x9,  x10, [x0,  #CELT_TMP]  // CELT_TWIDDLE
+        ldr             w3,  [x0, #CELT_FFT_N]
+        add             x5,  x2,  x5,  lsl #2
+        mov             x11, x9
+
+        sub             w6,  w6,  #4
+        ld1             {v0.s}[0],  [x5], x8
+        ld1             {v1.s}[0],  [x2], x7
+        ld1             {v4.4s,v5.4s}, [x10], #32
+        ld1             {v0.s}[1],  [x5], x8
+        ld1             {v1.s}[1],  [x2], x7
+        uzp1            v2.4s,  v4.4s,  v5.4s
+        ld1             {v0.s}[2],  [x5], x8
+        ld1             {v1.s}[2],  [x2], x7
+        uzp2            v3.4s,  v4.4s,  v5.4s
+        ld1             {v0.s}[3],  [x5], x8
+        ld1             {v1.s}[3],  [x2], x7
+1:
+        subs            w6,  w6,  #4
+
+        ld1             {v20.s}[0], [x5], x8
+        ld1             {v21.s}[0], [x2], x7
+        ld1             {v4.4s,v5.4s}, [x10], #32
+
+        fmul            v6.4s,  v0.4s,  v2.4s
+        fmul            v7.4s,  v0.4s,  v3.4s
+
+        ld1             {v20.s}[1], [x5], x8
+        ld1             {v21.s}[1], [x2], x7
+
+        fmls            v6.4s,  v1.4s,  v3.4s
+        fmla            v7.4s,  v1.4s,  v2.4s
+
+        ld1             {v20.s}[2], [x5], x8
+        ld1             {v21.s}[2], [x2], x7
+
+        uzp1            v2.4s,  v4.4s,  v5.4s
+        uzp2            v3.4s,  v4.4s,  v5.4s
+        ld1             {v20.s}[3], [x5], x8
+        ld1             {v21.s}[3], [x2], x7
+
+        zip1            v4.4s,  v6.4s,  v7.4s
+        zip2            v5.4s,  v6.4s,  v7.4s
+
+        fmul            v6.4s,  v20.4s, v2.4s
+        fmul            v7.4s,  v20.4s, v3.4s
+
+        st1             {v4.4s,v5.4s}, [x9], #32
+
+        fmls            v6.4s,  v21.4s, v3.4s
+        fmla            v7.4s,  v21.4s, v2.4s
+
+        b.eq            3f
+
+        subs            w6,  w6,  #4
+        ld1             {v4.4s,v5.4s}, [x10], #32
+        ld1             {v0.s}[0],  [x5], x8
+        ld1             {v1.s}[0],  [x2], x7
+        uzp1            v2.4s,  v4.4s,  v5.4s
+        ld1             {v0.s}[1],  [x5], x8
+        ld1             {v1.s}[1],  [x2], x7
+        uzp2            v3.4s,  v4.4s,  v5.4s
+        ld1             {v0.s}[2],  [x5], x8
+        ld1             {v1.s}[2],  [x2], x7
+        zip1            v4.4s,  v6.4s,  v7.4s
+        zip2            v5.4s,  v6.4s,  v7.4s
+        ld1             {v0.s}[3],  [x5], x8
+        ld1             {v1.s}[3],  [x2], x7
+
+        st1             {v4.4s,v5.4s}, [x9], #32
+
+        b.gt            1b
+
+        fmul            v6.4s,  v0.4s,  v2.4s
+        fmul            v7.4s,  v0.4s,  v3.4s
+        fmls            v6.4s,  v1.4s,  v3.4s
+        fmla            v7.4s,  v1.4s,  v2.4s
+3:
+        zip1            v4.4s,  v6.4s,  v7.4s
+        zip2            v5.4s,  v6.4s,  v7.4s
+        st1             {v4.4s,v5.4s}, [x9], #32
+
+        mov             x2,  x11
+        mov             x4,  #1
+
+        bl              fft_b15_calc_neon
+
+        ldr             w5,  [x10, #CELT_LEN4]
+        ldr             x6,  [x10, #CELT_TWIDDLE]
+        ldr             s31, [sp, #0x10]
+
+        add             x1,  x21, x5,  lsl #2
+        add             x3,  x6,  x5,  lsl #2
+        sub             x0,  x1,  #16
+        sub             x2,  x3,  #16
+        mov             x8,  #-16
+        mov             x7,  #16
+        mov             x10, x0
+        mov             x11, x1
+
+        sub             w5,  w5,  #4
+
+        ld1             {v0.4s},  [x0], x8
+        ld1             {v1.4s},  [x1], x7
+        ld1             {v2.4s},  [x2], x8
+        ld1             {v3.4s},  [x3], x7
+
+        uzp1            v4.4s,  v0.4s,  v1.4s   // z[-i-2, -i-1, +i, i+1].re
+        uzp2            v6.4s,  v0.4s,  v1.4s   // z[-i-2, -i-1, +i, i+1].im
+
+        uzp1            v5.4s,  v2.4s,  v3.4s   // twidlle_exptab[-i-2, -i-1, +i, i+1].re
+        uzp2            v7.4s,  v2.4s,  v3.4s   // twidlle_exptab[-i-2, -i-1, +i, i+1].im
+
+        fmul            v1.4s,  v6.4s,  v5.4s
+        fmul            v0.4s,  v6.4s,  v7.4s
+2:
+        subs            w5,  w5,  #4
+
+        ld1             {v20.4s}, [x0], x8
+
+        fmla            v1.4s,  v4.4s,  v7.4s
+        fmls            v0.4s,  v4.4s,  v5.4s
+
+        ld1             {v21.4s}, [x1], x7
+
+        ext             v1.16b, v1.16b, v1.16b, #8
+        fmul            v0.4s,  v0.4s,  v31.s[0]
+
+        ld1             {v2.4s},  [x2], x8
+
+        rev64           v1.4s,  v1.4s
+        fmul            v1.4s,  v1.4s,  v31.s[0]
+
+        ld1             {v3.4s},  [x3], x7
+
+        zip1            v5.4s,  v0.4s,  v1.4s
+        zip2            v7.4s,  v0.4s,  v1.4s
+
+        uzp1            v4.4s,  v20.4s, v21.4s  // z[-i-2, -i-1, +i, i+1].re
+        uzp2            v6.4s,  v20.4s, v21.4s  // z[-i-2, -i-1, +i, i+1].im
+
+        st1             {v5.4s},  [x10], x8
+        st1             {v7.4s},  [x11], x7
+
+        uzp1            v5.4s,  v2.4s,  v3.4s   // twidlle_exptab[-i-2, -i-1, +i, i+1].re
+        uzp2            v7.4s,  v2.4s,  v3.4s   // twidlle_exptab[-i-2, -i-1, +i, i+1].im
+
+        fmul            v1.4s,  v6.4s,  v5.4s
+        fmul            v0.4s,  v6.4s,  v7.4s
+        b.gt            2b
+
+        fmla            v1.4s,  v4.4s,  v7.4s
+        fmls            v0.4s,  v4.4s,  v5.4s
+        ext             v1.16b, v1.16b, v1.16b, #8
+        fmul            v0.4s,  v0.4s,  v31.s[0]
+        rev64           v1.4s,  v1.4s
+        fmul            v1.4s,  v1.4s,  v31.s[0]
+        zip1            v5.4s,  v0.4s,  v1.4s
+        zip2            v7.4s,  v0.4s,  v1.4s
+        st1             {v5.4s},  [x10], x8
+        st1             {v7.4s},  [x11], x7
+
+        ldp             x21, x30, [sp]
+        add             sp,  sp,  #0x20
+        ret
+endfunc
+
+// [0] = exp(2 * i * pi / 5), [1] = exp(2 * i * pi * 2 / 5)
+const   fact5,          align=4
+        .float           0.30901699437494745, 0.95105651629515353
+        .float          -0.80901699437494734, 0.58778525229247325
+endconst

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/mdct_neon.S

@@ -0,0 +1,323 @@
+/*
+ * AArch64 NEON optimised MDCT
+ * Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
+ * Copyright (c) 2014 Janne Grunau <janne-libav@jannau.net>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/aarch64/asm.S"
+
+function ff_imdct_half_neon, export=1
+        sub             sp,  sp,  #32
+        stp             x19, x20, [sp]
+        str             x30, [sp, #16]
+        mov             x12, #1
+        ldr             w14, [x0, #28]          // mdct_bits
+        ldr             x4,  [x0, #32]          // tcos
+        ldr             x3,  [x0, #8]           // revtab
+        lsl             x12, x12, x14           // n  = 1 << nbits
+        lsr             x14, x12, #2            // n4 = n >> 2
+        add             x7,  x2,  x12,  lsl #1
+        mov             x12, #-16
+        sub             x7,  x7,  #16
+
+        ld2             {v16.2s,v17.2s}, [x7], x12 // d16=x,n1 d17=x,n0
+        ld2             {v0.2s,v1.2s},   [x2], #16 // d0 =m0,x d1 =m1,x
+        rev64           v17.2s, v17.2s
+        ld2             {v2.2s,v3.2s},   [x4], #16 // d2=c0,c1 d3=s0,s2
+        fmul            v6.2s,  v17.2s, v2.2s
+        fmul            v7.2s,  v0.2s,  v2.2s
+1:
+        subs            x14, x14, #2
+        ldr             w6,  [x3], #4
+        fmul            v4.2s,  v0.2s,  v3.2s
+        fmul            v5.2s,  v17.2s, v3.2s
+        fsub            v4.2s,  v6.2s,  v4.2s
+        fadd            v5.2s,  v5.2s,  v7.2s
+        ubfm            x8,  x6,  #16, #31
+        ubfm            x6,  x6,  #0,  #15
+        add             x8,  x1,  x8,  lsl #3
+        add             x6,  x1,  x6,  lsl #3
+        b.eq            2f
+        ld2             {v16.2s,v17.2s}, [x7], x12
+        ld2             {v0.2s,v1.2s},   [x2], #16
+        rev64           v17.2s, v17.2s
+        ld2             {v2.2s,v3.2s},   [x4], #16    // d2=c0,c1 d3=s0,s2
+        fmul            v6.2s,  v17.2s, v2.2s
+        fmul            v7.2s,  v0.2s,  v2.2s
+        st2             {v4.s,v5.s}[0], [x6]
+        st2             {v4.s,v5.s}[1], [x8]
+        b               1b
+2:
+        st2             {v4.s,v5.s}[0], [x6]
+        st2             {v4.s,v5.s}[1], [x8]
+
+        mov             x19, x0
+        mov             x20, x1
+        bl              X(ff_fft_calc_neon)
+
+        mov             x12, #1
+        ldr             w14, [x19, #28]          // mdct_bits
+        ldr             x4,  [x19, #32]          // tcos
+        lsl             x12, x12, x14            // n  = 1 << nbits
+        lsr             x14, x12, #3             // n8 = n >> 3
+
+        add             x4,  x4,  x14, lsl #3
+        add             x6,  x20, x14, lsl #3
+        sub             x1,  x4,  #16
+        sub             x3,  x6,  #16
+
+        mov             x7,  #-16
+        mov             x8,  x6
+        mov             x0,  x3
+
+        ld2             {v0.2s,v1.2s},  [x3], x7 // d0 =i1,r1 d1 =i0,r0
+        ld2             {v20.2s,v21.2s},[x6], #16 // d20=i2,r2 d21=i3,r3
+        ld2             {v16.2s,v17.2s},[x1], x7 // d16=c1,c0 d18=s1,s0
+3:
+        subs            x14, x14, #2
+        fmul            v7.2s,  v0.2s,  v17.2s
+        ld2             {v18.2s,v19.2s},[x4], #16    // d17=c2,c3 d19=s2,s3
+        fmul            v4.2s,  v1.2s,  v17.2s
+        fmul            v6.2s,  v21.2s, v19.2s
+        fmul            v5.2s,  v20.2s, v19.2s
+        fmul            v22.2s, v1.2s,  v16.2s
+        fmul            v23.2s, v21.2s, v18.2s
+        fmul            v24.2s, v0.2s,  v16.2s
+        fmul            v25.2s, v20.2s, v18.2s
+        fadd            v7.2s,  v7.2s,  v22.2s
+        fadd            v5.2s,  v5.2s,  v23.2s
+        fsub            v4.2s,  v4.2s,  v24.2s
+        fsub            v6.2s,  v6.2s,  v25.2s
+        b.eq            4f
+        ld2             {v0.2s,v1.2s},  [x3], x7
+        ld2             {v20.2s,v21.2s},[x6], #16
+        ld2             {v16.2s,v17.2s},[x1], x7 // d16=c1,c0 d18=s1,s0
+        rev64           v5.2s,  v5.2s
+        rev64           v7.2s,  v7.2s
+        st2             {v4.2s,v5.2s},  [x0], x7
+        st2             {v6.2s,v7.2s},  [x8], #16
+        b               3b
+4:
+        rev64           v5.2s,  v5.2s
+        rev64           v7.2s,  v7.2s
+        st2             {v4.2s,v5.2s},  [x0]
+        st2             {v6.2s,v7.2s},  [x8]
+
+        ldp             x19, x20, [sp]
+        ldr             x30, [sp, #16]
+        add             sp,  sp,  #32
+
+        ret
+endfunc
+
+function ff_imdct_calc_neon, export=1
+        sub             sp,  sp,  #32
+        stp             x19, x20, [sp]
+        str             x30, [sp, #16]
+        ldr             w3,  [x0, #28]          // mdct_bits
+        mov             x19, #1
+        mov             x20, x1
+        lsl             x19, x19, x3
+        add             x1,  x1,  x19
+
+        bl              X(ff_imdct_half_neon)
+
+        add             x0,  x20, x19,  lsl #2
+        add             x1,  x20, x19,  lsl #1
+        sub             x0,  x0,  #8
+        sub             x2,  x1,  #16
+        mov             x3,  #-16
+        mov             x6,  #-8
+1:
+        ld1             {v0.4s}, [x2], x3
+        prfum           pldl1keep, [x0, #-16]
+        rev64           v0.4s, v0.4s
+        ld1             {v2.2s,v3.2s}, [x1], #16
+        fneg            v4.4s,  v0.4s
+        prfum           pldl1keep, [x2, #-16]
+        rev64           v2.2s, v2.2s
+        rev64           v3.2s, v3.2s
+        ext             v4.16b, v4.16b, v4.16b, #8
+        st1             {v2.2s}, [x0], x6
+        st1             {v3.2s}, [x0], x6
+        st1             {v4.4s}, [x20], #16
+        subs            x19, x19,  #16
+        b.gt            1b
+
+        ldp             x19, x20, [sp], #16
+        ldr             x30, [sp], #16
+
+        ret
+endfunc
+
+
+function ff_mdct_calc_neon, export=1
+        sub             sp,  sp,  #32
+        stp             x19, x20, [sp]
+        str             x30, [sp, #16]
+
+        mov             x12, #1
+        ldr             w14, [x0, #28]          // mdct_bits
+        ldr             x4,  [x0, #32]          // tcos
+        ldr             x3,  [x0, #8]           // revtab
+        lsl             x14, x12, x14           // n  = 1 << nbits
+        add             x7,  x2,  x14           // in4u
+        sub             x9,  x7,  #16           // in4d
+        add             x2,  x7,  x14, lsl #1   // in3u
+        add             x8,  x9,  x14, lsl #1   // in3d
+        add             x5,  x4,  x14, lsl #1
+        sub             x5,  x5,  #16
+        sub             x3,  x3,  #4
+        mov             x12, #-16
+        lsr             x13, x14, #1
+
+        ld2             {v16.2s,v17.2s}, [x9], x12  // in0u0,in0u1 in4d1,in4d0
+        ld2             {v18.2s,v19.2s}, [x8], x12  // in2u0,in2u1 in3d1,in3d0
+        ld2             {v0.2s, v1.2s},  [x7], #16  // in4u0,in4u1 in2d1,in2d0
+        rev64           v17.2s, v17.2s              // in4d0,in4d1 in3d0,in3d1
+        rev64           v19.2s, v19.2s              // in4d0,in4d1 in3d0,in3d1
+        ld2             {v2.2s, v3.2s},  [x2], #16  // in3u0,in3u1 in1d1,in1d0
+        fsub            v0.2s,  v17.2s, v0.2s       // in4d-in4u      I
+        ld2             {v20.2s,v21.2s}, [x4], #16  // c0,c1 s0,s1
+        rev64           v1.2s,  v1.2s               // in2d0,in2d1 in1d0,in1d1
+        rev64           v3.2s,  v3.2s               // in2d0,in2d1 in1d0,in1d1
+        ld2             {v30.2s,v31.2s}, [x5], x12  // c2,c3 s2,s3
+        fadd            v2.2s,  v2.2s,  v19.2s      // in3u+in3d     -R
+        fsub            v16.2s, v16.2s, v1.2s       // in0u-in2d      R
+        fadd            v18.2s, v18.2s, v3.2s       // in2u+in1d     -I
+1:
+        fmul            v7.2s,  v0.2s,  v21.2s      //  I*s
+        ldr             w10, [x3, x13]
+        fmul            v6.2s,  v2.2s,  v20.2s      // -R*c
+        ldr             w6,  [x3, #4]!
+        fmul            v4.2s,  v2.2s,  v21.2s      // -R*s
+        fmul            v5.2s,  v0.2s,  v20.2s      //  I*c
+        fmul            v24.2s, v16.2s, v30.2s      //  R*c
+        fmul            v25.2s, v18.2s, v31.2s      // -I*s
+        fmul            v22.2s, v16.2s, v31.2s      //  R*s
+        fmul            v23.2s, v18.2s, v30.2s      //  I*c
+        subs            x14, x14, #16
+        subs            x13, x13, #8
+        fsub            v6.2s,  v6.2s,  v7.2s       // -R*c-I*s
+        fadd            v7.2s,  v4.2s,  v5.2s       // -R*s+I*c
+        fsub            v24.2s, v25.2s, v24.2s      // I*s-R*c
+        fadd            v25.2s, v22.2s, v23.2s      // R*s-I*c
+        b.eq            1f
+        mov             x12, #-16
+        ld2             {v16.2s,v17.2s}, [x9], x12  // in0u0,in0u1 in4d1,in4d0
+        ld2             {v18.2s,v19.2s}, [x8], x12  // in2u0,in2u1 in3d1,in3d0
+        fneg            v7.2s,  v7.2s               //  R*s-I*c
+        ld2             {v0.2s, v1.2s},  [x7], #16  // in4u0,in4u1 in2d1,in2d0
+        rev64           v17.2s, v17.2s              // in4d0,in4d1 in3d0,in3d1
+        rev64           v19.2s, v19.2s              // in4d0,in4d1 in3d0,in3d1
+        ld2             {v2.2s, v3.2s},  [x2], #16  // in3u0,in3u1 in1d1,in1d0
+        fsub            v0.2s,  v17.2s, v0.2s       // in4d-in4u      I
+        ld2             {v20.2s,v21.2s}, [x4], #16  // c0,c1 s0,s1
+        rev64           v1.2s,  v1.2s               // in2d0,in2d1 in1d0,in1d1
+        rev64           v3.2s,  v3.2s               // in2d0,in2d1 in1d0,in1d1
+        ld2             {v30.2s,v31.2s}, [x5], x12  // c2,c3 s2,s3
+        fadd            v2.2s,  v2.2s,  v19.2s      // in3u+in3d     -R
+        fsub            v16.2s, v16.2s, v1.2s       // in0u-in2d      R
+        fadd            v18.2s, v18.2s, v3.2s       // in2u+in1d     -I
+        ubfm            x12, x6,  #16, #31
+        ubfm            x6,  x6,  #0,  #15
+        add             x12, x1,  x12, lsl #3
+        add             x6,  x1,  x6,  lsl #3
+        st2             {v6.s,v7.s}[0],   [x6]
+        st2             {v6.s,v7.s}[1],   [x12]
+        ubfm            x6,  x10, #16, #31
+        ubfm            x10, x10, #0,  #15
+        add             x6 , x1,  x6,  lsl #3
+        add             x10, x1,  x10, lsl #3
+        st2             {v24.s,v25.s}[0], [x10]
+        st2             {v24.s,v25.s}[1], [x6]
+        b               1b
+1:
+        fneg            v7.2s,  v7.2s           //  R*s-I*c
+        ubfm            x12, x6,  #16, #31
+        ubfm            x6,  x6,  #0,  #15
+        add             x12, x1,  x12, lsl #3
+        add             x6,  x1,  x6,  lsl #3
+        st2             {v6.s,v7.s}[0],   [x6]
+        st2             {v6.s,v7.s}[1],   [x12]
+        ubfm            x6,  x10, #16, #31
+        ubfm            x10, x10, #0,  #15
+        add             x6 , x1,  x6,  lsl #3
+        add             x10, x1,  x10, lsl #3
+        st2             {v24.s,v25.s}[0], [x10]
+        st2             {v24.s,v25.s}[1], [x6]
+
+        mov             x19, x0
+        mov             x20, x1
+        bl              X(ff_fft_calc_neon)
+
+        mov             x12, #1
+        ldr             w14, [x19, #28]         // mdct_bits
+        ldr             x4,  [x19, #32]         // tcos
+        lsl             x12, x12, x14           // n  = 1 << nbits
+        lsr             x14, x12, #3            // n8 = n >> 3
+
+        add             x4,  x4,  x14, lsl #3
+        add             x6,  x20, x14, lsl #3
+        sub             x1,  x4,  #16
+        sub             x3,  x6,  #16
+
+        mov             x7,  #-16
+        mov             x8,  x6
+        mov             x0,  x3
+
+        ld2             {v0.2s,v1.2s},   [x3], x7   // d0 =r1,i1 d1 =r0,i0
+        ld2             {v20.2s,v21.2s}, [x6], #16  // d20=r2,i2 d21=r3,i3
+        ld2             {v16.2s,v17.2s}, [x1], x7   // c1,c0 s1,s0
+1:
+        subs            x14, x14, #2
+        fmul            v7.2s,  v0.2s,  v17.2s      // r1*s1,r0*s0
+        ld2             {v18.2s,v19.2s}, [x4], #16  // c2,c3 s2,s3
+        fmul            v4.2s,  v1.2s,  v17.2s      // i1*s1,i0*s0
+        fmul            v6.2s,  v21.2s, v19.2s      // i2*s2,i3*s3
+        fmul            v5.2s,  v20.2s, v19.2s      // r2*s2,r3*s3
+        fmul            v24.2s, v0.2s,  v16.2s      // r1*c1,r0*c0
+        fmul            v25.2s, v20.2s, v18.2s      // r2*c2,r3*c3
+        fmul            v22.2s, v21.2s, v18.2s      // i2*c2,i3*c3
+        fmul            v23.2s, v1.2s,  v16.2s      // i1*c1,i0*c0
+        fadd            v4.2s,  v4.2s,  v24.2s      // i1*s1+r1*c1,i0*s0+r0*c0
+        fadd            v6.2s,  v6.2s,  v25.2s      // i2*s2+r2*c2,i3*s3+r3*c3
+        fsub            v5.2s,  v22.2s, v5.2s       // i2*c2-r2*s2,i3*c3-r3*s3
+        fsub            v7.2s,  v23.2s, v7.2s       // i1*c1-r1*s1,i0*c0-r0*s0
+        fneg            v4.2s,  v4.2s
+        fneg            v6.2s,  v6.2s
+        b.eq            1f
+        ld2             {v0.2s, v1.2s},  [x3], x7
+        ld2             {v20.2s,v21.2s}, [x6], #16
+        ld2             {v16.2s,v17.2s}, [x1], x7   // c1,c0 s1,s0
+        rev64           v5.2s,  v5.2s
+        rev64           v7.2s,  v7.2s
+        st2             {v4.2s,v5.2s},  [x0], x7
+        st2             {v6.2s,v7.2s},  [x8], #16
+        b               1b
+1:
+        rev64           v5.2s,  v5.2s
+        rev64           v7.2s,  v7.2s
+        st2             {v4.2s,v5.2s},  [x0]
+        st2             {v6.2s,v7.2s},  [x8]
+
+        ldp             x19, x20, [sp], #16
+        ldr             x30, [sp], #16
+        ret
+endfunc

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/mpegaudiodsp_init.c

@@ -0,0 +1,39 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/aarch64/cpu.h"
+#include "libavcodec/mpegaudiodsp.h"
+#include "config.h"
+
+void ff_mpadsp_apply_window_fixed_neon(int32_t *synth_buf, int32_t *window,
+                                       int *dither, int16_t *samples, int incr);
+void ff_mpadsp_apply_window_float_neon(float *synth_buf, float *window,
+                                       int *dither, float *samples, int incr);
+
+av_cold void ff_mpadsp_init_aarch64(MPADSPContext *s)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags)) {
+        s->apply_window_fixed = ff_mpadsp_apply_window_fixed_neon;
+        s->apply_window_float = ff_mpadsp_apply_window_float_neon;
+    }
+}

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/mpegaudiodsp_neon.S

@@ -0,0 +1,226 @@
+/*
+ * Copyright (c) 2014 Janne Grunau <janne-libav@jannau.net>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/aarch64/asm.S"
+
+#define FRAC_BITS   23   // fractional bits for sb_samples and dct
+#define WFRAC_BITS  16   // fractional bits for window
+#define OUT_SHIFT (WFRAC_BITS + FRAC_BITS - 15)
+
+const   tbl_rev128.s, align=4
+        .byte           12, 13, 14, 15
+        .byte            8,  9, 10, 11
+        .byte            4,  5,  6,  7
+        .byte            0,  1,  2,  3
+endconst
+
+.macro   apply_window   type, st
+function ff_mpadsp_apply_window_\type\()_neon, export=1
+        mov             x7,  x0
+        sxtw            x4,  w4  // incr
+        add             x8,  x0,  #512<<2
+        ld1             {v0.4s,v1.4s,v2.4s,v3.4s},  [x7],  #64
+        ld1             {v4.4s,v5.4s,v6.4s,v7.4s},  [x7],  #64
+        st1             {v0.4s,v1.4s,v2.4s,v3.4s},  [x8],  #64
+        st1             {v4.4s,v5.4s,v6.4s,v7.4s},  [x8],  #64
+        movrel          x15, tbl_rev128.s
+        ld1             {v27.4s}, [x15]
+.ifc \type, fixed
+        lsl             x4,  x4,  #1
+.else
+        lsl             x4,  x4,  #2
+.endif
+        add             x10, x0,  #45<<2
+        add             x0,  x0,  #16<<2
+        add             x1,  x1,  #16<<2
+        add             x5,  x3,  x4,  lsl #5
+        sub             x5,  x5,  x4            // samples2
+        neg             x13, x4                 // -incr
+        mov             x9,  #64<<2
+.ifc \type, fixed
+        ld1r            {v16.2s}, [x2]          // dither_state
+        sxtl            v16.2d, v16.2s
+        movi            v29.2d, #0
+        movi            v30.2d, #(1<<OUT_SHIFT)-1
+        trn1            v31.2d, v29.2d, v30.2d
+        trn2            v30.2d, v30.2d, v29.2d
+        trn1            v16.2d, v16.2d, v29.2d
+.else
+        movi            v16.4s, #0
+        movi            v28.4s, #0
+.endif
+        mov             x14, #4
+1:
+        mov             x8,  x0
+        sub             x7,  x1,  #3<<2
+        sub             x6,  x1,  x14, lsl #4
+        add             x7,  x7,  x14, lsl #4
+        add             x11, x6, #(32)<<2      // w  + 32
+        add             x12, x7, #(32)<<2      // w2 + 32
+        mov             x15, #8
+        movi            v17.2d, #0
+        movi            v18.2d, #0
+        movi            v19.2d, #0
+2:
+        subs            x15, x15, #1
+        ld1             {v0.4s},  [x8],  x9
+        ld1             {v1.4s},  [x10], x9
+        ld1             {v2.4s},  [x6],  x9
+        ld1             {v3.4s},  [x7],  x9
+        tbl             v6.16b, {v0.16b}, v27.16b
+        tbl             v7.16b, {v1.16b}, v27.16b
+        ld1             {v4.4s},  [x11], x9
+        ld1             {v5.4s},  [x12], x9
+        MLA             v16, v2, v0
+        MLA2            v17, v2, v0
+        MLS             v18, v3, v6
+        MLS2            v19, v3, v6
+        MLS             v16, v4, v7
+        MLS2            v17, v4, v7
+        MLS             v18, v5, v1
+        MLS2            v19, v5, v1
+        b.gt            2b
+
+        cmp             x14, #4
+        sub             x10, x10, #64<<5        // 64 * 8 * sizeof(int32_t)
+
+.ifc \type, fixed
+        and             v28.16b, v16.16b, v30.16b
+        ext             v28.16b, v29.16b, v28.16b, #8
+
+        b.eq            4f
+        round_sample    v19, 1, 1
+4:
+        round_sample    v16, 1, 0
+        shrn            v16.2s, v16.2d,  #OUT_SHIFT
+        round_sample    v19, 0, 0
+        shrn            v19.2s, v19.2d,  #OUT_SHIFT
+        round_sample    v17, 0, 1
+        round_sample    v18, 1, 1
+        round_sample    v17, 1, 0
+        shrn2           v16.4s, v17.2d,  #OUT_SHIFT
+        round_sample    v18, 0, 0
+        shrn2           v19.4s, v18.2d,  #OUT_SHIFT
+        sqxtn           v16.4h, v16.4s
+        sqxtn           v18.4h, v19.4s
+.else
+        ext             v18.16b, v18.16b, v18.16b, #8
+.endif
+
+        st1             {v16.\st\()}[0], [x3], x4
+        b.eq            4f
+        st1             {v18.\st\()}[1], [x5], x13
+4:
+        st1             {v16.\st\()}[1], [x3], x4
+        st1             {v18.\st\()}[0], [x5], x13
+        st1             {v16.\st\()}[2], [x3], x4
+        st1             {v18.\st\()}[3], [x5], x13
+        st1             {v16.\st\()}[3], [x3], x4
+        st1             {v18.\st\()}[2], [x5], x13
+
+        mov             v16.16b, v28.16b
+
+        subs            x14, x14, #1
+        add             x0,  x0,  #4<<2
+        sub             x10, x10, #4<<2
+        b.gt            1b
+
+// comuting samples[16]
+        add             x6,  x1,  #32<<2
+        ld1             {v0.2s},  [x6],  x9
+        ld1             {v1.2s},  [x0],  x9
+.rept   3
+        ld1             {v2.2s},  [x6],  x9
+        ld1             {v3.2s},  [x0],  x9
+        MLS             v16, v0,  v1
+        ld1             {v0.2s},  [x6],  x9
+        ld1             {v1.2s},  [x0],  x9
+        MLS             v16, v2,  v3
+.endr
+        ld1             {v2.2s},  [x6],  x9
+        ld1             {v3.2s},  [x0],  x9
+        MLS             v16, v0,  v1
+        MLS             v16, v2,  v3
+
+.ifc \type, fixed
+        and             v28.16b, v16.16b, v30.16b
+        shrn            v20.2s,  v16.2d,  #OUT_SHIFT
+        xtn             v28.2s,  v28.2d
+        sqxtn           v20.4h,  v20.4s
+        st1             {v28.s}[0], [x2]        // save dither_state
+        st1             {v20.h}[0], [x3]
+.else
+        st1             {v16.s}[0], [x3]
+.endif
+
+        ret
+endfunc
+.purgem round_sample
+.purgem MLA
+.purgem MLA2
+.purgem MLS
+.purgem MLS2
+.endm
+
+
+.macro  round_sample    r, idx, next
+        add             \r\().2d, \r\().2d, v28.2d
+.if \idx == 0
+        and             v28.16b,  \r\().16b,  v30.16b
+.else // \idx == 1
+        and             v28.16b,  \r\().16b,  v31.16b
+.endif
+.if \idx != \next
+  .if \next == 0
+        ext             v28.16b, v28.16b, v29.16b, #8
+  .else
+        ext             v28.16b, v29.16b, v28.16b, #8
+  .endif
+.endif
+.endm
+.macro  MLA             d, s1, s2
+        smlal           \d\().2d, \s1\().2s, \s2\().2s
+.endm
+.macro  MLA2            d, s1, s2
+        smlal2          \d\().2d, \s1\().4s, \s2\().4s
+.endm
+.macro  MLS             d, s1, s2
+        smlsl           \d\().2d, \s1\().2s, \s2\().2s
+.endm
+.macro  MLS2            d, s1, s2
+        smlsl2          \d\().2d, \s1\().4s, \s2\().4s
+.endm
+apply_window fixed, h
+
+
+// nothing to do for round_sample and ML{A,S}2
+.macro  round_sample    r, idx, next
+.endm
+.macro  MLA2            d, s1, s2
+.endm
+.macro  MLS2            d, s1, s2
+.endm
+.macro  MLA             d, s1, s2
+        fmla            \d\().4s, \s1\().4s, \s2\().4s
+.endm
+.macro  MLS             d, s1, s2
+        fmls            \d\().4s, \s1\().4s, \s2\().4s
+.endm
+apply_window float, s

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/neon.S

@@ -0,0 +1,149 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+.macro  transpose_8x8B  r0, r1, r2, r3, r4, r5, r6, r7, r8, r9
+        trn1            \r8\().8B,  \r0\().8B,  \r1\().8B
+        trn2            \r9\().8B,  \r0\().8B,  \r1\().8B
+        trn1            \r1\().8B,  \r2\().8B,  \r3\().8B
+        trn2            \r3\().8B,  \r2\().8B,  \r3\().8B
+        trn1            \r0\().8B,  \r4\().8B,  \r5\().8B
+        trn2            \r5\().8B,  \r4\().8B,  \r5\().8B
+        trn1            \r2\().8B,  \r6\().8B,  \r7\().8B
+        trn2            \r7\().8B,  \r6\().8B,  \r7\().8B
+
+        trn1            \r4\().4H,  \r0\().4H,  \r2\().4H
+        trn2            \r2\().4H,  \r0\().4H,  \r2\().4H
+        trn1            \r6\().4H,  \r5\().4H,  \r7\().4H
+        trn2            \r7\().4H,  \r5\().4H,  \r7\().4H
+        trn1            \r5\().4H,  \r9\().4H,  \r3\().4H
+        trn2            \r9\().4H,  \r9\().4H,  \r3\().4H
+        trn1            \r3\().4H,  \r8\().4H,  \r1\().4H
+        trn2            \r8\().4H,  \r8\().4H,  \r1\().4H
+
+        trn1            \r0\().2S,  \r3\().2S,  \r4\().2S
+        trn2            \r4\().2S,  \r3\().2S,  \r4\().2S
+
+        trn1            \r1\().2S,  \r5\().2S,  \r6\().2S
+        trn2            \r5\().2S,  \r5\().2S,  \r6\().2S
+
+        trn2            \r6\().2S,  \r8\().2S,  \r2\().2S
+        trn1            \r2\().2S,  \r8\().2S,  \r2\().2S
+
+        trn1            \r3\().2S,  \r9\().2S,  \r7\().2S
+        trn2            \r7\().2S,  \r9\().2S,  \r7\().2S
+.endm
+
+.macro  transpose_8x16B r0, r1, r2, r3, r4, r5, r6, r7, t0, t1
+        trn1            \t0\().16B, \r0\().16B, \r1\().16B
+        trn2            \t1\().16B, \r0\().16B, \r1\().16B
+        trn1            \r1\().16B, \r2\().16B, \r3\().16B
+        trn2            \r3\().16B, \r2\().16B, \r3\().16B
+        trn1            \r0\().16B, \r4\().16B, \r5\().16B
+        trn2            \r5\().16B, \r4\().16B, \r5\().16B
+        trn1            \r2\().16B, \r6\().16B, \r7\().16B
+        trn2            \r7\().16B, \r6\().16B, \r7\().16B
+
+        trn1            \r4\().8H,  \r0\().8H,  \r2\().8H
+        trn2            \r2\().8H,  \r0\().8H,  \r2\().8H
+        trn1            \r6\().8H,  \r5\().8H,  \r7\().8H
+        trn2            \r7\().8H,  \r5\().8H,  \r7\().8H
+        trn1            \r5\().8H,  \t1\().8H,  \r3\().8H
+        trn2            \t1\().8H,  \t1\().8H,  \r3\().8H
+        trn1            \r3\().8H,  \t0\().8H,  \r1\().8H
+        trn2            \t0\().8H,  \t0\().8H,  \r1\().8H
+
+        trn1            \r0\().4S,  \r3\().4S,  \r4\().4S
+        trn2            \r4\().4S,  \r3\().4S,  \r4\().4S
+
+        trn1            \r1\().4S,  \r5\().4S,  \r6\().4S
+        trn2            \r5\().4S,  \r5\().4S,  \r6\().4S
+
+        trn2            \r6\().4S,  \t0\().4S,  \r2\().4S
+        trn1            \r2\().4S,  \t0\().4S,  \r2\().4S
+
+        trn1            \r3\().4S,  \t1\().4S,  \r7\().4S
+        trn2            \r7\().4S,  \t1\().4S,  \r7\().4S
+.endm
+
+.macro  transpose_4x16B r0, r1, r2, r3, t4, t5, t6, t7
+        trn1            \t4\().16B, \r0\().16B,  \r1\().16B
+        trn2            \t5\().16B, \r0\().16B,  \r1\().16B
+        trn1            \t6\().16B, \r2\().16B,  \r3\().16B
+        trn2            \t7\().16B, \r2\().16B,  \r3\().16B
+
+        trn1            \r0\().8H,  \t4\().8H,  \t6\().8H
+        trn2            \r2\().8H,  \t4\().8H,  \t6\().8H
+        trn1            \r1\().8H,  \t5\().8H,  \t7\().8H
+        trn2            \r3\().8H,  \t5\().8H,  \t7\().8H
+.endm
+
+.macro  transpose_4x8B  r0, r1, r2, r3, t4, t5, t6, t7
+        trn1            \t4\().8B,  \r0\().8B,  \r1\().8B
+        trn2            \t5\().8B,  \r0\().8B,  \r1\().8B
+        trn1            \t6\().8B,  \r2\().8B,  \r3\().8B
+        trn2            \t7\().8B,  \r2\().8B,  \r3\().8B
+
+        trn1            \r0\().4H,  \t4\().4H,  \t6\().4H
+        trn2            \r2\().4H,  \t4\().4H,  \t6\().4H
+        trn1            \r1\().4H,  \t5\().4H,  \t7\().4H
+        trn2            \r3\().4H,  \t5\().4H,  \t7\().4H
+.endm
+
+.macro  transpose_4x4H  r0, r1, r2, r3, r4, r5, r6, r7
+        trn1            \r4\().4H,  \r0\().4H,  \r1\().4H
+        trn2            \r5\().4H,  \r0\().4H,  \r1\().4H
+        trn1            \r7\().4H,  \r3\().4H,  \r2\().4H
+        trn2            \r6\().4H,  \r3\().4H,  \r2\().4H
+        trn1            \r0\().2S,  \r4\().2S,  \r7\().2S
+        trn2            \r3\().2S,  \r4\().2S,  \r7\().2S
+        trn1            \r1\().2S,  \r5\().2S,  \r6\().2S
+        trn2            \r2\().2S,  \r5\().2S,  \r6\().2S
+.endm
+
+.macro  transpose_8x8H  r0, r1, r2, r3, r4, r5, r6, r7, r8, r9
+        trn1            \r8\().8H,  \r0\().8H,  \r1\().8H
+        trn2            \r9\().8H,  \r0\().8H,  \r1\().8H
+        trn1            \r1\().8H,  \r2\().8H,  \r3\().8H
+        trn2            \r3\().8H,  \r2\().8H,  \r3\().8H
+        trn1            \r0\().8H,  \r4\().8H,  \r5\().8H
+        trn2            \r5\().8H,  \r4\().8H,  \r5\().8H
+        trn1            \r2\().8H,  \r6\().8H,  \r7\().8H
+        trn2            \r7\().8H,  \r6\().8H,  \r7\().8H
+
+        trn1            \r4\().4S,  \r0\().4S,  \r2\().4S
+        trn2            \r2\().4S,  \r0\().4S,  \r2\().4S
+        trn1            \r6\().4S,  \r5\().4S,  \r7\().4S
+        trn2            \r7\().4S,  \r5\().4S,  \r7\().4S
+        trn1            \r5\().4S,  \r9\().4S,  \r3\().4S
+        trn2            \r9\().4S,  \r9\().4S,  \r3\().4S
+        trn1            \r3\().4S,  \r8\().4S,  \r1\().4S
+        trn2            \r8\().4S,  \r8\().4S,  \r1\().4S
+
+        trn1            \r0\().2D,  \r3\().2D,  \r4\().2D
+        trn2            \r4\().2D,  \r3\().2D,  \r4\().2D
+
+        trn1            \r1\().2D,  \r5\().2D,  \r6\().2D
+        trn2            \r5\().2D,  \r5\().2D,  \r6\().2D
+
+        trn2            \r6\().2D,  \r8\().2D,  \r2\().2D
+        trn1            \r2\().2D,  \r8\().2D,  \r2\().2D
+
+        trn1            \r3\().2D,  \r9\().2D,  \r7\().2D
+        trn2            \r7\().2D,  \r9\().2D,  \r7\().2D
+
+.endm

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/neontest.c

@@ -0,0 +1,79 @@
+/*
+ * check NEON registers for clobbers
+ * Copyright (c) 2013 Martin Storsjo
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavcodec/avcodec.h"
+#include "libavutil/aarch64/neontest.h"
+
+wrap(avcodec_open2(AVCodecContext *avctx,
+                   AVCodec *codec,
+                   AVDictionary **options))
+{
+    testneonclobbers(avcodec_open2, avctx, codec, options);
+}
+
+wrap(avcodec_decode_audio4(AVCodecContext *avctx,
+                           AVFrame *frame,
+                           int *got_frame_ptr,
+                           AVPacket *avpkt))
+{
+    testneonclobbers(avcodec_decode_audio4, avctx, frame,
+                     got_frame_ptr, avpkt);
+}
+
+wrap(avcodec_decode_video2(AVCodecContext *avctx,
+                           AVFrame *picture,
+                           int *got_picture_ptr,
+                           AVPacket *avpkt))
+{
+    testneonclobbers(avcodec_decode_video2, avctx, picture,
+                     got_picture_ptr, avpkt);
+}
+
+wrap(avcodec_decode_subtitle2(AVCodecContext *avctx,
+                              AVSubtitle *sub,
+                              int *got_sub_ptr,
+                              AVPacket *avpkt))
+{
+    testneonclobbers(avcodec_decode_subtitle2, avctx, sub,
+                     got_sub_ptr, avpkt);
+}
+
+wrap(avcodec_encode_audio2(AVCodecContext *avctx,
+                           AVPacket *avpkt,
+                           const AVFrame *frame,
+                           int *got_packet_ptr))
+{
+    testneonclobbers(avcodec_encode_audio2, avctx, avpkt, frame,
+                     got_packet_ptr);
+}
+
+wrap(avcodec_encode_subtitle(AVCodecContext *avctx,
+                             uint8_t *buf, int buf_size,
+                             const AVSubtitle *sub))
+{
+    testneonclobbers(avcodec_encode_subtitle, avctx, buf, buf_size, sub);
+}
+
+wrap(avcodec_encode_video2(AVCodecContext *avctx, AVPacket *avpkt,
+                           const AVFrame *frame, int *got_packet_ptr))
+{
+    testneonclobbers(avcodec_encode_video2, avctx, avpkt, frame, got_packet_ptr);
+}

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/rv40dsp_init_aarch64.c

@@ -0,0 +1,48 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/aarch64/cpu.h"
+#include "libavcodec/rv34dsp.h"
+
+#include "config.h"
+
+void ff_put_rv40_chroma_mc8_neon(uint8_t *dst, uint8_t *src, int stride, int h,
+                                 int x, int y);
+void ff_put_rv40_chroma_mc4_neon(uint8_t *dst, uint8_t *src, int stride, int h,
+                                 int x, int y);
+
+void ff_avg_rv40_chroma_mc8_neon(uint8_t *dst, uint8_t *src, int stride, int h,
+                                 int x, int y);
+void ff_avg_rv40_chroma_mc4_neon(uint8_t *dst, uint8_t *src, int stride, int h,
+                                 int x, int y);
+
+av_cold void ff_rv40dsp_init_aarch64(RV34DSPContext *c)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags)) {
+        c->put_chroma_pixels_tab[0] = ff_put_rv40_chroma_mc8_neon;
+        c->put_chroma_pixels_tab[1] = ff_put_rv40_chroma_mc4_neon;
+        c->avg_chroma_pixels_tab[0] = ff_avg_rv40_chroma_mc8_neon;
+        c->avg_chroma_pixels_tab[1] = ff_avg_rv40_chroma_mc4_neon;
+    }
+}

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/vc1dsp_init_aarch64.c

@@ -0,0 +1,47 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/aarch64/cpu.h"
+#include "libavcodec/vc1dsp.h"
+
+#include "config.h"
+
+void ff_put_vc1_chroma_mc8_neon(uint8_t *dst, uint8_t *src, int stride, int h,
+                                int x, int y);
+void ff_avg_vc1_chroma_mc8_neon(uint8_t *dst, uint8_t *src, int stride, int h,
+                                int x, int y);
+void ff_put_vc1_chroma_mc4_neon(uint8_t *dst, uint8_t *src, int stride, int h,
+                                int x, int y);
+void ff_avg_vc1_chroma_mc4_neon(uint8_t *dst, uint8_t *src, int stride, int h,
+                                int x, int y);
+
+av_cold void ff_vc1dsp_init_aarch64(VC1DSPContext *dsp)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags)) {
+        dsp->put_no_rnd_vc1_chroma_pixels_tab[0] = ff_put_vc1_chroma_mc8_neon;
+        dsp->avg_no_rnd_vc1_chroma_pixels_tab[0] = ff_avg_vc1_chroma_mc8_neon;
+        dsp->put_no_rnd_vc1_chroma_pixels_tab[1] = ff_put_vc1_chroma_mc4_neon;
+        dsp->avg_no_rnd_vc1_chroma_pixels_tab[1] = ff_avg_vc1_chroma_mc4_neon;
+    }
+}

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/videodsp.S

@@ -0,0 +1,28 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/aarch64/asm.S"
+
+function ff_prefetch_aarch64, export=1
+        subs            w2,  w2,  #2
+        prfm            pldl1strm, [x0]
+        prfm            pldl1strm, [x0,  x1]
+        add             x0,  x0,  x1,  lsl #1
+        b.gt            X(ff_prefetch_aarch64)
+        ret
+endfunc

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/videodsp_init.c

@@ -0,0 +1,32 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/aarch64/cpu.h"
+#include "libavcodec/videodsp.h"
+
+void ff_prefetch_aarch64(uint8_t *mem, ptrdiff_t stride, int h);
+
+av_cold void ff_videodsp_init_aarch64(VideoDSPContext *ctx, int bpc)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_armv8(cpu_flags))
+        ctx->prefetch = ff_prefetch_aarch64;
+}

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/vorbisdsp_init.c

@@ -0,0 +1,34 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/aarch64/cpu.h"
+#include "libavcodec/vorbisdsp.h"
+
+void ff_vorbis_inverse_coupling_neon(float *mag, float *ang,
+                                     intptr_t blocksize);
+
+av_cold void ff_vorbisdsp_init_aarch64(VorbisDSPContext *c)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_neon(cpu_flags)) {
+        c->vorbis_inverse_coupling = ff_vorbis_inverse_coupling_neon;
+    }
+}

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/vorbisdsp_neon.S

@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/aarch64/asm.S"
+
+function ff_vorbis_inverse_coupling_neon, export=1
+        movi            v20.4s,  #1<<7, lsl #24
+        subs            x2,  x2,  #4
+        mov             x3,  x0
+        mov             x4,  x1
+        b.eq            3f
+
+        ld1             {v7.4s},  [x1], #16
+        ld1             {v6.4s},  [x0], #16
+        cmle            v4.4s,  v7.4s,  #0
+        and             v5.16b, v6.16b, v20.16b
+        eor             v7.16b, v7.16b, v5.16b
+        and             v2.16b, v7.16b, v4.16b
+        bic             v3.16b, v7.16b, v4.16b
+        fadd            v7.4s,  v6.4s,  v2.4s
+        fsub            v6.4s,  v6.4s,  v3.4s
+1:      ld1             {v1.4s},  [x1], #16
+        ld1             {v0.4s},  [x0], #16
+        cmle            v4.4s,  v1.4s,  #0
+        and             v5.16b, v0.16b, v20.16b
+        eor             v1.16b, v1.16b, v5.16b
+        st1             {v7.4s},  [x3], #16
+        st1             {v6.4s},  [x4], #16
+        and             v2.16b, v1.16b, v4.16b
+        bic             v3.16b, v1.16b, v4.16b
+        fadd            v1.4s,  v0.4s,  v2.4s
+        fsub            v0.4s,  v0.4s,  v3.4s
+        subs            x2,  x2,  #8
+        b.le            2f
+        ld1             {v7.4s},  [x1], #16
+        ld1             {v6.4s},  [x0], #16
+        cmle            v4.4s,  v7.4s,  #0
+        and             v5.16b, v6.16b, v20.16b
+        eor             v7.16b, v7.16b, v5.16b
+        st1             {v1.4s},  [x3], #16
+        st1             {v0.4s},  [x4], #16
+        and             v2.16b, v7.16b, v4.16b
+        bic             v3.16b, v7.16b, v4.16b
+        fadd            v7.4s,  v6.4s,  v2.4s
+        fsub            v6.4s,  v6.4s,  v3.4s
+        b               1b
+
+2:      st1             {v1.4s},  [x3], #16
+        st1             {v0.4s},  [x4], #16
+        b.lt            ret
+
+3:      ld1             {v1.4s},  [x1]
+        ld1             {v0.4s},  [x0]
+        cmle            v4.4s,  v1.4s,  #0
+        and             v5.16b, v0.16b, v20.16b
+        eor             v1.16b, v1.16b, v5.16b
+        and             v2.16b, v1.16b, v4.16b
+        bic             v3.16b, v1.16b, v4.16b
+        fadd            v1.4s,  v0.4s,  v2.4s
+        fsub            v0.4s,  v0.4s,  v3.4s
+        st1             {v1.4s},  [x0], #16
+        st1             {v0.4s},  [x1], #16
+ret:
+        ret
+endfunc

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aasc.c

@@ -0,0 +1,162 @@
+/*
+ * Autodesk RLE Decoder
+ * Copyright (c) 2005 The FFmpeg Project
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Autodesk RLE Video Decoder by Konstantin Shishkov
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "avcodec.h"
+#include "internal.h"
+#include "msrledec.h"
+
+typedef struct AascContext {
+    AVCodecContext *avctx;
+    GetByteContext gb;
+    AVFrame *frame;
+
+    uint32_t palette[AVPALETTE_COUNT];
+    int palette_size;
+} AascContext;
+
+static av_cold int aasc_decode_init(AVCodecContext *avctx)
+{
+    AascContext *s = avctx->priv_data;
+    uint8_t *ptr;
+    int i;
+
+    s->avctx = avctx;
+    switch (avctx->bits_per_coded_sample) {
+    case 8:
+        avctx->pix_fmt = AV_PIX_FMT_PAL8;
+
+        ptr = avctx->extradata;
+        s->palette_size = FFMIN(avctx->extradata_size, AVPALETTE_SIZE);
+        for (i = 0; i < s->palette_size / 4; i++) {
+            s->palette[i] = 0xFFU << 24 | AV_RL32(ptr);
+            ptr += 4;
+        }
+        break;
+    case 16:
+        avctx->pix_fmt = AV_PIX_FMT_RGB555LE;
+        break;
+    case 24:
+        avctx->pix_fmt = AV_PIX_FMT_BGR24;
+        break;
+    default:
+        av_log(avctx, AV_LOG_ERROR, "Unsupported bit depth: %d\n", avctx->bits_per_coded_sample);
+        return -1;
+    }
+
+    s->frame = av_frame_alloc();
+    if (!s->frame)
+        return AVERROR(ENOMEM);
+
+    return 0;
+}
+
+static int aasc_decode_frame(AVCodecContext *avctx,
+                              void *data, int *got_frame,
+                              AVPacket *avpkt)
+{
+    const uint8_t *buf = avpkt->data;
+    int buf_size       = avpkt->size;
+    AascContext *s     = avctx->priv_data;
+    int compr, i, stride, psize, ret;
+
+    if (buf_size < 4) {
+        av_log(avctx, AV_LOG_ERROR, "frame too short\n");
+        return AVERROR_INVALIDDATA;
+    }
+
+    if ((ret = ff_reget_buffer(avctx, s->frame)) < 0)
+        return ret;
+
+    compr     = AV_RL32(buf);
+    buf      += 4;
+    buf_size -= 4;
+    psize = avctx->bits_per_coded_sample / 8;
+    switch (avctx->codec_tag) {
+    case MKTAG('A', 'A', 'S', '4'):
+        bytestream2_init(&s->gb, buf - 4, buf_size + 4);
+        ff_msrle_decode(avctx, (AVPicture*)s->frame, 8, &s->gb);
+        break;
+    case MKTAG('A', 'A', 'S', 'C'):
+    switch (compr) {
+    case 0:
+        stride = (avctx->width * psize + psize) & ~psize;
+        if (buf_size < stride * avctx->height)
+            return AVERROR_INVALIDDATA;
+        for (i = avctx->height - 1; i >= 0; i--) {
+            memcpy(s->frame->data[0] + i * s->frame->linesize[0], buf, avctx->width * psize);
+            buf += stride;
+            buf_size -= stride;
+        }
+        break;
+    case 1:
+        bytestream2_init(&s->gb, buf, buf_size);
+        ff_msrle_decode(avctx, (AVPicture*)s->frame, 8, &s->gb);
+        break;
+    default:
+        av_log(avctx, AV_LOG_ERROR, "Unknown compression type %d\n", compr);
+        return AVERROR_INVALIDDATA;
+    }
+        break;
+    default:
+        av_log(avctx, AV_LOG_ERROR, "Unknown FourCC: %X\n", avctx->codec_tag);
+        return -1;
+    }
+
+    if (avctx->pix_fmt == AV_PIX_FMT_PAL8)
+        memcpy(s->frame->data[1], s->palette, s->palette_size);
+
+    *got_frame = 1;
+    if ((ret = av_frame_ref(data, s->frame)) < 0)
+        return ret;
+
+    /* report that the buffer was completely consumed */
+    return avpkt->size;
+}
+
+static av_cold int aasc_decode_end(AVCodecContext *avctx)
+{
+    AascContext *s = avctx->priv_data;
+
+    av_frame_free(&s->frame);
+
+    return 0;
+}
+
+AVCodec ff_aasc_decoder = {
+    .name           = "aasc",
+    .long_name      = NULL_IF_CONFIG_SMALL("Autodesk RLE"),
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = AV_CODEC_ID_AASC,
+    .priv_data_size = sizeof(AascContext),
+    .init           = aasc_decode_init,
+    .close          = aasc_decode_end,
+    .decode         = aasc_decode_frame,
+    .capabilities   = AV_CODEC_CAP_DR1,
+};

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/ac3.c

@@ -0,0 +1,234 @@
+/*
+ * Common code between the AC-3 encoder and decoder
+ * Copyright (c) 2000 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Common code between the AC-3 encoder and decoder.
+ */
+
+#include "avcodec.h"
+#include "ac3.h"
+#include "get_bits.h"
+
+/**
+ * Starting frequency coefficient bin for each critical band.
+ */
+const uint8_t ff_ac3_band_start_tab[AC3_CRITICAL_BANDS+1] = {
+      0,  1,   2,   3,   4,   5,   6,   7,   8,   9,
+     10,  11, 12,  13,  14,  15,  16,  17,  18,  19,
+     20,  21, 22,  23,  24,  25,  26,  27,  28,  31,
+     34,  37, 40,  43,  46,  49,  55,  61,  67,  73,
+     79,  85, 97, 109, 121, 133, 157, 181, 205, 229, 253
+};
+
+#if CONFIG_HARDCODED_TABLES
+
+/**
+ * Map each frequency coefficient bin to the critical band that contains it.
+ */
+const uint8_t ff_ac3_bin_to_band_tab[253] = {
+     0,
+     1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12,
+    13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
+    25, 26, 27, 28, 28, 28, 29, 29, 29, 30, 30, 30,
+    31, 31, 31, 32, 32, 32, 33, 33, 33, 34, 34, 34,
+    35, 35, 35, 35, 35, 35, 36, 36, 36, 36, 36, 36,
+    37, 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, 38,
+    39, 39, 39, 39, 39, 39, 40, 40, 40, 40, 40, 40,
+    41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41,
+    42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42,
+    43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43,
+    44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44,
+    45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45,
+    45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45,
+    46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46,
+    46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46,
+    47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+    47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47,
+    48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48,
+    48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48,
+    49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
+    49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
+};
+
+#else /* CONFIG_HARDCODED_TABLES */
+uint8_t ff_ac3_bin_to_band_tab[253];
+#endif
+
+static inline int calc_lowcomp1(int a, int b0, int b1, int c)
+{
+    if ((b0 + 256) == b1) {
+        a = c;
+    } else if (b0 > b1) {
+        a = FFMAX(a - 64, 0);
+    }
+    return a;
+}
+
+static inline int calc_lowcomp(int a, int b0, int b1, int bin)
+{
+    if (bin < 7) {
+        return calc_lowcomp1(a, b0, b1, 384);
+    } else if (bin < 20) {
+        return calc_lowcomp1(a, b0, b1, 320);
+    } else {
+        return FFMAX(a - 128, 0);
+    }
+}
+
+void ff_ac3_bit_alloc_calc_psd(int8_t *exp, int start, int end, int16_t *psd,
+                               int16_t *band_psd)
+{
+    int bin, band;
+
+    /* exponent mapping to PSD */
+    for (bin = start; bin < end; bin++) {
+        psd[bin]=(3072 - (exp[bin] << 7));
+    }
+
+    /* PSD integration */
+    bin  = start;
+    band = ff_ac3_bin_to_band_tab[start];
+    do {
+        int v = psd[bin++];
+        int band_end = FFMIN(ff_ac3_band_start_tab[band+1], end);
+        for (; bin < band_end; bin++) {
+            int max = FFMAX(v, psd[bin]);
+            /* logadd */
+            int adr = FFMIN(max - ((v + psd[bin] + 1) >> 1), 255);
+            v = max + ff_ac3_log_add_tab[adr];
+        }
+        band_psd[band++] = v;
+    } while (end > ff_ac3_band_start_tab[band]);
+}
+
+int ff_ac3_bit_alloc_calc_mask(AC3BitAllocParameters *s, int16_t *band_psd,
+                               int start, int end, int fast_gain, int is_lfe,
+                               int dba_mode, int dba_nsegs, uint8_t *dba_offsets,
+                               uint8_t *dba_lengths, uint8_t *dba_values,
+                               int16_t *mask)
+{
+    int16_t excite[AC3_CRITICAL_BANDS]; /* excitation */
+    int band;
+    int band_start, band_end, begin, end1;
+    int lowcomp, fastleak, slowleak;
+
+    if (end <= 0)
+        return AVERROR_INVALIDDATA;
+
+    /* excitation function */
+    band_start = ff_ac3_bin_to_band_tab[start];
+    band_end   = ff_ac3_bin_to_band_tab[end-1] + 1;
+
+    if (band_start == 0) {
+        lowcomp = 0;
+        lowcomp = calc_lowcomp1(lowcomp, band_psd[0], band_psd[1], 384);
+        excite[0] = band_psd[0] - fast_gain - lowcomp;
+        lowcomp = calc_lowcomp1(lowcomp, band_psd[1], band_psd[2], 384);
+        excite[1] = band_psd[1] - fast_gain - lowcomp;
+        begin = 7;
+        for (band = 2; band < 7; band++) {
+            if (!(is_lfe && band == 6))
+                lowcomp = calc_lowcomp1(lowcomp, band_psd[band], band_psd[band+1], 384);
+            fastleak = band_psd[band] - fast_gain;
+            slowleak = band_psd[band] - s->slow_gain;
+            excite[band] = fastleak - lowcomp;
+            if (!(is_lfe && band == 6)) {
+                if (band_psd[band] <= band_psd[band+1]) {
+                    begin = band + 1;
+                    break;
+                }
+            }
+        }
+
+        end1 = FFMIN(band_end, 22);
+        for (band = begin; band < end1; band++) {
+            if (!(is_lfe && band == 6))
+                lowcomp = calc_lowcomp(lowcomp, band_psd[band], band_psd[band+1], band);
+            fastleak = FFMAX(fastleak - s->fast_decay, band_psd[band] - fast_gain);
+            slowleak = FFMAX(slowleak - s->slow_decay, band_psd[band] - s->slow_gain);
+            excite[band] = FFMAX(fastleak - lowcomp, slowleak);
+        }
+        begin = 22;
+    } else {
+        /* coupling channel */
+        begin = band_start;
+        fastleak = (s->cpl_fast_leak << 8) + 768;
+        slowleak = (s->cpl_slow_leak << 8) + 768;
+    }
+
+    for (band = begin; band < band_end; band++) {
+        fastleak = FFMAX(fastleak - s->fast_decay, band_psd[band] - fast_gain);
+        slowleak = FFMAX(slowleak - s->slow_decay, band_psd[band] - s->slow_gain);
+        excite[band] = FFMAX(fastleak, slowleak);
+    }
+
+    /* compute masking curve */
+
+    for (band = band_start; band < band_end; band++) {
+        int tmp = s->db_per_bit - band_psd[band];
+        if (tmp > 0) {
+            excite[band] += tmp >> 2;
+        }
+        mask[band] = FFMAX(ff_ac3_hearing_threshold_tab[band >> s->sr_shift][s->sr_code], excite[band]);
+    }
+
+    /* delta bit allocation */
+
+    if (dba_mode == DBA_REUSE || dba_mode == DBA_NEW) {
+        int i, seg, delta;
+        if (dba_nsegs > 8)
+            return -1;
+        band = band_start;
+        for (seg = 0; seg < dba_nsegs; seg++) {
+            band += dba_offsets[seg];
+            if (band >= AC3_CRITICAL_BANDS || dba_lengths[seg] > AC3_CRITICAL_BANDS-band)
+                return -1;
+            if (dba_values[seg] >= 4) {
+                delta = (dba_values[seg] - 3) * 128;
+            } else {
+                delta = (dba_values[seg] - 4) * 128;
+            }
+            for (i = 0; i < dba_lengths[seg]; i++) {
+                mask[band++] += delta;
+            }
+        }
+    }
+    return 0;
+}
+
+/**
+ * Initialize some tables.
+ * note: This function must remain thread safe because it is called by the
+ *       AVParser init code.
+ */
+av_cold void ff_ac3_common_init(void)
+{
+#if !CONFIG_HARDCODED_TABLES
+    /* compute ff_ac3_bin_to_band_tab from ff_ac3_band_start_tab */
+    int bin = 0, band;
+    for (band = 0; band < AC3_CRITICAL_BANDS; band++) {
+        int band_end = ff_ac3_band_start_tab[band+1];
+        while (bin < band_end)
+            ff_ac3_bin_to_band_tab[bin++] = band;
+    }
+#endif /* !CONFIG_HARDCODED_TABLES */
+}

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/ac3.h

@@ -0,0 +1,267 @@
+/*
+ * Common code between the AC-3 encoder and decoder
+ * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Common code between the AC-3 encoder and decoder.
+ */
+
+#ifndef AVCODEC_AC3_H
+#define AVCODEC_AC3_H
+
+#define AC3_MAX_CODED_FRAME_SIZE 3840 /* in bytes */
+#define AC3_MAX_CHANNELS 7            /**< maximum number of channels, including coupling channel */
+#define CPL_CH 0                      /**< coupling channel index */
+
+#define AC3_MAX_COEFS   256
+#define AC3_BLOCK_SIZE  256
+#define AC3_MAX_BLOCKS    6
+#define AC3_FRAME_SIZE (AC3_MAX_BLOCKS * 256)
+#define AC3_WINDOW_SIZE (AC3_BLOCK_SIZE * 2)
+#define AC3_CRITICAL_BANDS 50
+#define AC3_MAX_CPL_BANDS  18
+
+#include "libavutil/opt.h"
+#include "avcodec.h"
+#include "ac3tab.h"
+
+/* exponent encoding strategy */
+#define EXP_REUSE 0
+#define EXP_NEW   1
+
+#define EXP_D15   1
+#define EXP_D25   2
+#define EXP_D45   3
+
+#ifndef USE_FIXED
+#define USE_FIXED 0
+#endif
+
+#if USE_FIXED
+
+#define FFT_FLOAT 0
+
+#define FIXR(a)                 ((int)((a) * 0 + 0.5))
+#define FIXR12(a)               ((int)((a) * 4096 + 0.5))
+#define FIXR15(a)               ((int)((a) * 32768 + 0.5))
+#define ROUND15(x)              ((x) + 16384) >> 15
+
+#define AC3_RENAME(x)           x ## _fixed
+#define AC3_NORM(norm)          (1<<24)/(norm)
+#define AC3_MUL(a,b)            ((((int64_t) (a)) * (b))>>12)
+#define AC3_RANGE(x)            ((x)|(((x)&128)<<1))
+#define AC3_HEAVY_RANGE(x)      ((x)<<1)
+#define AC3_DYNAMIC_RANGE(x)    (x)
+#define AC3_SPX_BLEND(x)        (x)
+#define AC3_DYNAMIC_RANGE1      0
+
+#define INTFLOAT                int
+#define SHORTFLOAT              int16_t
+
+#else /* USE_FIXED */
+
+#define FIXR(x)                 ((float)(x))
+#define FIXR12(x)               ((float)(x))
+#define FIXR15(x)               ((float)(x))
+#define ROUND15(x)              (x)
+
+#define AC3_RENAME(x)           x
+#define AC3_NORM(norm)          (1.0f/(norm))
+#define AC3_MUL(a,b)            ((a) * (b))
+#define AC3_RANGE(x)            (dynamic_range_tab[(x)])
+#define AC3_HEAVY_RANGE(x)      (heavy_dynamic_range_tab[(x)])
+#define AC3_DYNAMIC_RANGE(x)    (powf(x,  s->drc_scale))
+#define AC3_SPX_BLEND(x)        (x)* (1.0f/32)
+#define AC3_DYNAMIC_RANGE1      1.0f
+
+#define INTFLOAT                float
+#define SHORTFLOAT              float
+
+#endif /* USE_FIXED */
+
+#define AC3_LEVEL(x)            ROUND15((x) * FIXR15(0.7071067811865476))
+
+/* pre-defined gain values */
+#define LEVEL_PLUS_3DB          1.4142135623730950
+#define LEVEL_PLUS_1POINT5DB    1.1892071150027209
+#define LEVEL_MINUS_1POINT5DB   0.8408964152537145
+#define LEVEL_MINUS_3DB         0.7071067811865476
+#define LEVEL_MINUS_4POINT5DB   0.5946035575013605
+#define LEVEL_MINUS_6DB         0.5000000000000000
+#define LEVEL_MINUS_9DB         0.3535533905932738
+#define LEVEL_ZERO              0.0000000000000000
+#define LEVEL_ONE               1.0000000000000000
+
+/** Delta bit allocation strategy */
+typedef enum {
+    DBA_REUSE = 0,
+    DBA_NEW,
+    DBA_NONE,
+    DBA_RESERVED
+} AC3DeltaStrategy;
+
+/** Channel mode (audio coding mode) */
+typedef enum {
+    AC3_CHMODE_DUALMONO = 0,
+    AC3_CHMODE_MONO,
+    AC3_CHMODE_STEREO,
+    AC3_CHMODE_3F,
+    AC3_CHMODE_2F1R,
+    AC3_CHMODE_3F1R,
+    AC3_CHMODE_2F2R,
+    AC3_CHMODE_3F2R
+} AC3ChannelMode;
+
+/** Dolby Surround mode */
+typedef enum AC3DolbySurroundMode {
+    AC3_DSURMOD_NOTINDICATED = 0,
+    AC3_DSURMOD_OFF,
+    AC3_DSURMOD_ON,
+    AC3_DSURMOD_RESERVED
+} AC3DolbySurroundMode;
+
+/** Dolby Surround EX mode */
+typedef enum AC3DolbySurroundEXMode {
+    AC3_DSUREXMOD_NOTINDICATED = 0,
+    AC3_DSUREXMOD_OFF,
+    AC3_DSUREXMOD_ON,
+    AC3_DSUREXMOD_PLIIZ
+} AC3DolbySurroundEXMode;
+
+/** Dolby Headphone mode */
+typedef enum AC3DolbyHeadphoneMode {
+    AC3_DHEADPHONMOD_NOTINDICATED = 0,
+    AC3_DHEADPHONMOD_OFF,
+    AC3_DHEADPHONMOD_ON,
+    AC3_DHEADPHONMOD_RESERVED
+} AC3DolbyHeadphoneMode;
+
+/** Preferred Stereo Downmix mode */
+typedef enum AC3PreferredStereoDownmixMode {
+    AC3_DMIXMOD_NOTINDICATED = 0,
+    AC3_DMIXMOD_LTRT,
+    AC3_DMIXMOD_LORO,
+    AC3_DMIXMOD_DPLII // reserved value in A/52, but used by encoders to indicate DPL2
+} AC3PreferredStereoDownmixMode;
+
+typedef struct AC3BitAllocParameters {
+    int sr_code;
+    int sr_shift;
+    int slow_gain, slow_decay, fast_decay, db_per_bit, floor;
+    int cpl_fast_leak, cpl_slow_leak;
+} AC3BitAllocParameters;
+
+/**
+ * @struct AC3HeaderInfo
+ * Coded AC-3 header values up to the lfeon element, plus derived values.
+ */
+typedef struct AC3HeaderInfo {
+    /** @name Coded elements
+     * @{
+     */
+    uint16_t sync_word;
+    uint16_t crc1;
+    uint8_t sr_code;
+    uint8_t bitstream_id;
+    uint8_t bitstream_mode;
+    uint8_t channel_mode;
+    uint8_t lfe_on;
+    uint8_t frame_type;
+    int substreamid;                        ///< substream identification
+    int center_mix_level;                   ///< Center mix level index
+    int surround_mix_level;                 ///< Surround mix level index
+    uint16_t channel_map;
+    int num_blocks;                         ///< number of audio blocks
+#if AV_HAVE_INCOMPATIBLE_LIBAV_ABI
+    int dolby_surround_mode;
+#endif
+    /** @} */
+
+    /** @name Derived values
+     * @{
+     */
+    uint8_t sr_shift;
+    uint16_t sample_rate;
+    uint32_t bit_rate;
+    uint8_t channels;
+    uint16_t frame_size;
+    uint64_t channel_layout;
+    /** @} */
+#if !AV_HAVE_INCOMPATIBLE_LIBAV_ABI
+    int dolby_surround_mode;
+#endif
+} AC3HeaderInfo;
+
+typedef enum {
+    EAC3_FRAME_TYPE_INDEPENDENT = 0,
+    EAC3_FRAME_TYPE_DEPENDENT,
+    EAC3_FRAME_TYPE_AC3_CONVERT,
+    EAC3_FRAME_TYPE_RESERVED
+} EAC3FrameType;
+
+void ff_ac3_common_init(void);
+
+/**
+ * Calculate the log power-spectral density of the input signal.
+ * This gives a rough estimate of signal power in the frequency domain by using
+ * the spectral envelope (exponents).  The psd is also separately grouped
+ * into critical bands for use in the calculating the masking curve.
+ * 128 units in psd = -6 dB.  The dbknee parameter in AC3BitAllocParameters
+ * determines the reference level.
+ *
+ * @param[in]  exp        frequency coefficient exponents
+ * @param[in]  start      starting bin location
+ * @param[in]  end        ending bin location
+ * @param[out] psd        signal power for each frequency bin
+ * @param[out] band_psd   signal power for each critical band
+ */
+void ff_ac3_bit_alloc_calc_psd(int8_t *exp, int start, int end, int16_t *psd,
+                               int16_t *band_psd);
+
+/**
+ * Calculate the masking curve.
+ * First, the excitation is calculated using parameters in s and the signal
+ * power in each critical band.  The excitation is compared with a predefined
+ * hearing threshold table to produce the masking curve.  If delta bit
+ * allocation information is provided, it is used for adjusting the masking
+ * curve, usually to give a closer match to a better psychoacoustic model.
+ *
+ * @param[in]  s            adjustable bit allocation parameters
+ * @param[in]  band_psd     signal power for each critical band
+ * @param[in]  start        starting bin location
+ * @param[in]  end          ending bin location
+ * @param[in]  fast_gain    fast gain (estimated signal-to-mask ratio)
+ * @param[in]  is_lfe       whether or not the channel being processed is the LFE
+ * @param[in]  dba_mode     delta bit allocation mode (none, reuse, or new)
+ * @param[in]  dba_nsegs    number of delta segments
+ * @param[in]  dba_offsets  location offsets for each segment
+ * @param[in]  dba_lengths  length of each segment
+ * @param[in]  dba_values   delta bit allocation for each segment
+ * @param[out] mask         calculated masking curve
+ * @return returns 0 for success, non-zero for error
+ */
+int ff_ac3_bit_alloc_calc_mask(AC3BitAllocParameters *s, int16_t *band_psd,
+                               int start, int end, int fast_gain, int is_lfe,
+                               int dba_mode, int dba_nsegs, uint8_t *dba_offsets,
+                               uint8_t *dba_lengths, uint8_t *dba_values,
+                               int16_t *mask);
+
+#endif /* AVCODEC_AC3_H */

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/ac3_parser.c

@@ -0,0 +1,213 @@
+/*
+ * AC-3 parser
+ * Copyright (c) 2003 Fabrice Bellard
+ * Copyright (c) 2003 Michael Niedermayer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/channel_layout.h"
+#include "parser.h"
+#include "ac3_parser.h"
+#include "aac_ac3_parser.h"
+#include "get_bits.h"
+
+
+#define AC3_HEADER_SIZE 7
+
+
+static const uint8_t eac3_blocks[4] = {
+    1, 2, 3, 6
+};
+
+/**
+ * Table for center mix levels
+ * reference: Section 5.4.2.4 cmixlev
+ */
+static const uint8_t center_levels[4] = { 4, 5, 6, 5 };
+
+/**
+ * Table for surround mix levels
+ * reference: Section 5.4.2.5 surmixlev
+ */
+static const uint8_t surround_levels[4] = { 4, 6, 7, 6 };
+
+
+int avpriv_ac3_parse_header2(GetBitContext *gbc, AC3HeaderInfo **phdr)
+{
+    int frame_size_code;
+    AC3HeaderInfo *hdr;
+
+    if (!*phdr)
+        *phdr = av_mallocz(sizeof(AC3HeaderInfo));
+    if (!*phdr)
+        return AVERROR(ENOMEM);
+    hdr = *phdr;
+
+    memset(hdr, 0, sizeof(*hdr));
+
+    hdr->sync_word = get_bits(gbc, 16);
+    if(hdr->sync_word != 0x0B77)
+        return AAC_AC3_PARSE_ERROR_SYNC;
+
+    /* read ahead to bsid to distinguish between AC-3 and E-AC-3 */
+    hdr->bitstream_id = show_bits_long(gbc, 29) & 0x1F;
+    if(hdr->bitstream_id > 16)
+        return AAC_AC3_PARSE_ERROR_BSID;
+
+    hdr->num_blocks = 6;
+
+    /* set default mix levels */
+    hdr->center_mix_level   = 5;  // -4.5dB
+    hdr->surround_mix_level = 6;  // -6.0dB
+
+    /* set default dolby surround mode */
+    hdr->dolby_surround_mode = AC3_DSURMOD_NOTINDICATED;
+
+    if(hdr->bitstream_id <= 10) {
+        /* Normal AC-3 */
+        hdr->crc1 = get_bits(gbc, 16);
+        hdr->sr_code = get_bits(gbc, 2);
+        if(hdr->sr_code == 3)
+            return AAC_AC3_PARSE_ERROR_SAMPLE_RATE;
+
+        frame_size_code = get_bits(gbc, 6);
+        if(frame_size_code > 37)
+            return AAC_AC3_PARSE_ERROR_FRAME_SIZE;
+
+        skip_bits(gbc, 5); // skip bsid, already got it
+
+        hdr->bitstream_mode = get_bits(gbc, 3);
+        hdr->channel_mode = get_bits(gbc, 3);
+
+        if(hdr->channel_mode == AC3_CHMODE_STEREO) {
+            hdr->dolby_surround_mode = get_bits(gbc, 2);
+        } else {
+            if((hdr->channel_mode & 1) && hdr->channel_mode != AC3_CHMODE_MONO)
+                hdr->  center_mix_level =   center_levels[get_bits(gbc, 2)];
+            if(hdr->channel_mode & 4)
+                hdr->surround_mix_level = surround_levels[get_bits(gbc, 2)];
+        }
+        hdr->lfe_on = get_bits1(gbc);
+
+        hdr->sr_shift = FFMAX(hdr->bitstream_id, 8) - 8;
+        hdr->sample_rate = ff_ac3_sample_rate_tab[hdr->sr_code] >> hdr->sr_shift;
+        hdr->bit_rate = (ff_ac3_bitrate_tab[frame_size_code>>1] * 1000) >> hdr->sr_shift;
+        hdr->channels = ff_ac3_channels_tab[hdr->channel_mode] + hdr->lfe_on;
+        hdr->frame_size = ff_ac3_frame_size_tab[frame_size_code][hdr->sr_code] * 2;
+        hdr->frame_type = EAC3_FRAME_TYPE_AC3_CONVERT; //EAC3_FRAME_TYPE_INDEPENDENT;
+        hdr->substreamid = 0;
+    } else {
+        /* Enhanced AC-3 */
+        hdr->crc1 = 0;
+        hdr->frame_type = get_bits(gbc, 2);
+        if(hdr->frame_type == EAC3_FRAME_TYPE_RESERVED)
+            return AAC_AC3_PARSE_ERROR_FRAME_TYPE;
+
+        hdr->substreamid = get_bits(gbc, 3);
+
+        hdr->frame_size = (get_bits(gbc, 11) + 1) << 1;
+        if(hdr->frame_size < AC3_HEADER_SIZE)
+            return AAC_AC3_PARSE_ERROR_FRAME_SIZE;
+
+        hdr->sr_code = get_bits(gbc, 2);
+        if (hdr->sr_code == 3) {
+            int sr_code2 = get_bits(gbc, 2);
+            if(sr_code2 == 3)
+                return AAC_AC3_PARSE_ERROR_SAMPLE_RATE;
+            hdr->sample_rate = ff_ac3_sample_rate_tab[sr_code2] / 2;
+            hdr->sr_shift = 1;
+        } else {
+            hdr->num_blocks = eac3_blocks[get_bits(gbc, 2)];
+            hdr->sample_rate = ff_ac3_sample_rate_tab[hdr->sr_code];
+            hdr->sr_shift = 0;
+        }
+
+        hdr->channel_mode = get_bits(gbc, 3);
+        hdr->lfe_on = get_bits1(gbc);
+
+        hdr->bit_rate = 8LL * hdr->frame_size * hdr->sample_rate /
+                        (hdr->num_blocks * 256);
+        hdr->channels = ff_ac3_channels_tab[hdr->channel_mode] + hdr->lfe_on;
+    }
+    hdr->channel_layout = avpriv_ac3_channel_layout_tab[hdr->channel_mode];
+    if (hdr->lfe_on)
+        hdr->channel_layout |= AV_CH_LOW_FREQUENCY;
+
+    return 0;
+}
+
+int avpriv_ac3_parse_header(GetBitContext *gbc, AC3HeaderInfo *hdr)
+{
+    AC3HeaderInfo tmp, *ptmp = &tmp;
+    int ret = avpriv_ac3_parse_header2(gbc, &ptmp);
+
+    memcpy(hdr, ptmp, ((intptr_t)&tmp.channel_layout) - ((intptr_t)&tmp) + sizeof(uint64_t));
+    return ret;
+}
+
+static int ac3_sync(uint64_t state, AACAC3ParseContext *hdr_info,
+        int *need_next_header, int *new_frame_start)
+{
+    int err;
+    union {
+        uint64_t u64;
+        uint8_t  u8[8 + AV_INPUT_BUFFER_PADDING_SIZE];
+    } tmp = { av_be2ne64(state) };
+    AC3HeaderInfo hdr, *phdr = &hdr;
+    GetBitContext gbc;
+
+    init_get_bits(&gbc, tmp.u8+8-AC3_HEADER_SIZE, 54);
+    err = avpriv_ac3_parse_header2(&gbc, &phdr);
+
+    if(err < 0)
+        return 0;
+
+    hdr_info->sample_rate = hdr.sample_rate;
+    hdr_info->bit_rate = hdr.bit_rate;
+    hdr_info->channels = hdr.channels;
+    hdr_info->channel_layout = hdr.channel_layout;
+    hdr_info->samples = hdr.num_blocks * 256;
+    hdr_info->service_type = hdr.bitstream_mode;
+    if (hdr.bitstream_mode == 0x7 && hdr.channels > 1)
+        hdr_info->service_type = AV_AUDIO_SERVICE_TYPE_KARAOKE;
+    if(hdr.bitstream_id>10)
+        hdr_info->codec_id = AV_CODEC_ID_EAC3;
+    else if (hdr_info->codec_id == AV_CODEC_ID_NONE)
+        hdr_info->codec_id = AV_CODEC_ID_AC3;
+
+    *need_next_header = (hdr.frame_type != EAC3_FRAME_TYPE_AC3_CONVERT);
+    *new_frame_start  = (hdr.frame_type != EAC3_FRAME_TYPE_DEPENDENT);
+    return hdr.frame_size;
+}
+
+static av_cold int ac3_parse_init(AVCodecParserContext *s1)
+{
+    AACAC3ParseContext *s = s1->priv_data;
+    s->header_size = AC3_HEADER_SIZE;
+    s->sync = ac3_sync;
+    return 0;
+}
+
+
+AVCodecParser ff_ac3_parser = {
+    .codec_ids      = { AV_CODEC_ID_AC3, AV_CODEC_ID_EAC3 },
+    .priv_data_size = sizeof(AACAC3ParseContext),
+    .parser_init    = ac3_parse_init,
+    .parser_parse   = ff_aac_ac3_parse,
+    .parser_close   = ff_parse_close,
+};

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/ac3_parser.h

@@ -0,0 +1,44 @@
+/*
+ * AC-3 parser prototypes
+ * Copyright (c) 2003 Fabrice Bellard
+ * Copyright (c) 2003 Michael Niedermayer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AC3_PARSER_H
+#define AVCODEC_AC3_PARSER_H
+
+#include "ac3.h"
+#include "get_bits.h"
+
+/**
+ * Parse AC-3 frame header.
+ * Parse the header up to the lfeon element, which is the first 52 or 54 bits
+ * depending on the audio coding mode.
+ * @param[in]  gbc BitContext containing the first 54 bits of the frame.
+ * @param[out] hdr Pointer to Pointer to struct where header info is written.
+ *                 will be allocated if NULL
+ * @return Returns 0 on success, -1 if there is a sync word mismatch,
+ * -2 if the bsid (version) element is invalid, -3 if the fscod (sample rate)
+ * element is invalid, or -4 if the frmsizecod (bit rate) element is invalid.
+ */
+int avpriv_ac3_parse_header2(GetBitContext *gbc, AC3HeaderInfo **hdr);
+
+int avpriv_ac3_parse_header(GetBitContext *gbc, AC3HeaderInfo *hdr);
+
+#endif /* AVCODEC_AC3_PARSER_H */