ffmpeg-2.1.1: move directory

git-svn-id: svn://kolibrios.org@6148 a494cfbc-eb01-0410-851d-a64ba20cac60

contrib/sdk/sources/ffmpeg/ffmpeg-2.1/libavformat/rawdec.c

@@ -0,0 +1,177 @@
+/*
+ * RAW demuxers
+ * Copyright (c) 2001 Fabrice Bellard
+ * Copyright (c) 2005 Alex Beregszaszi
+ *
+ * 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 "avformat.h"
+#include "internal.h"
+#include "avio_internal.h"
+#include "rawdec.h"
+#include "libavutil/opt.h"
+#include "libavutil/parseutils.h"
+#include "libavutil/pixdesc.h"
+#include "libavutil/avassert.h"
+
+#define RAW_PACKET_SIZE 1024
+
+int ff_raw_read_partial_packet(AVFormatContext *s, AVPacket *pkt)
+{
+    int ret, size;
+
+    size = RAW_PACKET_SIZE;
+
+    if (av_new_packet(pkt, size) < 0)
+        return AVERROR(ENOMEM);
+
+    pkt->pos= avio_tell(s->pb);
+    pkt->stream_index = 0;
+    ret = ffio_read_partial(s->pb, pkt->data, size);
+    if (ret < 0) {
+        av_free_packet(pkt);
+        return ret;
+    }
+    av_shrink_packet(pkt, ret);
+    return ret;
+}
+
+int ff_raw_audio_read_header(AVFormatContext *s)
+{
+    AVStream *st = avformat_new_stream(s, NULL);
+    if (!st)
+        return AVERROR(ENOMEM);
+    st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
+    st->codec->codec_id = s->iformat->raw_codec_id;
+    st->need_parsing = AVSTREAM_PARSE_FULL_RAW;
+    st->start_time = 0;
+    /* the parameters will be extracted from the compressed bitstream */
+
+    return 0;
+}
+
+/* MPEG-1/H.263 input */
+int ff_raw_video_read_header(AVFormatContext *s)
+{
+    AVStream *st;
+    FFRawVideoDemuxerContext *s1 = s->priv_data;
+    int ret = 0;
+
+
+    st = avformat_new_stream(s, NULL);
+    if (!st) {
+        ret = AVERROR(ENOMEM);
+        goto fail;
+    }
+
+    st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
+    st->codec->codec_id = s->iformat->raw_codec_id;
+    st->need_parsing = AVSTREAM_PARSE_FULL_RAW;
+
+    st->codec->time_base = av_inv_q(s1->framerate);
+    avpriv_set_pts_info(st, 64, 1, 1200000);
+
+fail:
+    return ret;
+}
+
+static int ff_raw_data_read_header(AVFormatContext *s)
+{
+    AVStream *st = avformat_new_stream(s, NULL);
+    if (!st)
+        return AVERROR(ENOMEM);
+    st->codec->codec_type = AVMEDIA_TYPE_DATA;
+    st->codec->codec_id = s->iformat->raw_codec_id;
+    st->start_time = 0;
+    return 0;
+}
+
+/* Note: Do not forget to add new entries to the Makefile as well. */
+
+#define OFFSET(x) offsetof(FFRawVideoDemuxerContext, x)
+#define DEC AV_OPT_FLAG_DECODING_PARAM
+const AVOption ff_rawvideo_options[] = {
+    { "framerate", "", OFFSET(framerate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, 0, DEC},
+    { NULL },
+};
+
+#if CONFIG_DATA_DEMUXER
+AVInputFormat ff_data_demuxer = {
+    .name           = "data",
+    .long_name      = NULL_IF_CONFIG_SMALL("raw data"),
+    .read_header    = ff_raw_data_read_header,
+    .read_packet    = ff_raw_read_partial_packet,
+    .raw_codec_id   = AV_CODEC_ID_NONE,
+};
+#endif
+
+#if CONFIG_LATM_DEMUXER
+AVInputFormat ff_latm_demuxer = {
+    .name           = "latm",
+    .long_name      = NULL_IF_CONFIG_SMALL("raw LOAS/LATM"),
+    .read_header    = ff_raw_audio_read_header,
+    .read_packet    = ff_raw_read_partial_packet,
+    .flags          = AVFMT_GENERIC_INDEX,
+    .extensions     = "latm",
+    .raw_codec_id   = AV_CODEC_ID_AAC_LATM,
+};
+#endif
+
+#if CONFIG_MJPEG_DEMUXER
+FF_DEF_RAWVIDEO_DEMUXER(mjpeg, "raw MJPEG video", NULL, "mjpg,mjpeg,mpo", AV_CODEC_ID_MJPEG)
+#endif
+
+#if CONFIG_MLP_DEMUXER
+AVInputFormat ff_mlp_demuxer = {
+    .name           = "mlp",
+    .long_name      = NULL_IF_CONFIG_SMALL("raw MLP"),
+    .read_header    = ff_raw_audio_read_header,
+    .read_packet    = ff_raw_read_partial_packet,
+    .flags          = AVFMT_GENERIC_INDEX,
+    .extensions     = "mlp",
+    .raw_codec_id   = AV_CODEC_ID_MLP,
+};
+#endif
+
+#if CONFIG_TRUEHD_DEMUXER
+AVInputFormat ff_truehd_demuxer = {
+    .name           = "truehd",
+    .long_name      = NULL_IF_CONFIG_SMALL("raw TrueHD"),
+    .read_header    = ff_raw_audio_read_header,
+    .read_packet    = ff_raw_read_partial_packet,
+    .flags          = AVFMT_GENERIC_INDEX,
+    .extensions     = "thd",
+    .raw_codec_id   = AV_CODEC_ID_TRUEHD,
+};
+#endif
+
+#if CONFIG_SHORTEN_DEMUXER
+AVInputFormat ff_shorten_demuxer = {
+    .name           = "shn",
+    .long_name      = NULL_IF_CONFIG_SMALL("raw Shorten"),
+    .read_header    = ff_raw_audio_read_header,
+    .read_packet    = ff_raw_read_partial_packet,
+    .flags          = AVFMT_NOBINSEARCH | AVFMT_NOGENSEARCH | AVFMT_NO_BYTE_SEEK,
+    .extensions     = "shn",
+    .raw_codec_id   = AV_CODEC_ID_SHORTEN,
+};
+#endif
+
+#if CONFIG_VC1_DEMUXER
+FF_DEF_RAWVIDEO_DEMUXER(vc1, "raw VC-1", NULL, "vc1", AV_CODEC_ID_VC1)
+#endif