forked from KolibriOS/kolibrios
165 lines
7.5 KiB
C
165 lines
7.5 KiB
C
/*
|
|
* H.26L/H.264/AVC/JVT/14496-10/... decoder
|
|
* Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
|
|
*
|
|
* 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 "h264.h"
|
|
|
|
#undef MCFUNC
|
|
|
|
#if CHROMA_IDC == 1
|
|
# define MCFUNC(n) FUNC(n ## _420)
|
|
#elif CHROMA_IDC == 2
|
|
# define MCFUNC(n) FUNC(n ## _422)
|
|
#elif CHROMA_IDC == 3
|
|
# define MCFUNC(n) FUNC(n ## _444)
|
|
#endif
|
|
|
|
#undef mc_part
|
|
#define mc_part MCFUNC(mc_part)
|
|
|
|
static void mc_part(const H264Context *h, H264SliceContext *sl,
|
|
int n, int square,
|
|
int height, int delta,
|
|
uint8_t *dest_y, uint8_t *dest_cb,
|
|
uint8_t *dest_cr,
|
|
int x_offset, int y_offset,
|
|
const qpel_mc_func *qpix_put,
|
|
h264_chroma_mc_func chroma_put,
|
|
const qpel_mc_func *qpix_avg,
|
|
h264_chroma_mc_func chroma_avg,
|
|
const h264_weight_func *weight_op,
|
|
const h264_biweight_func *weight_avg,
|
|
int list0, int list1)
|
|
{
|
|
if ((sl->use_weight == 2 && list0 && list1 &&
|
|
(sl->implicit_weight[sl->ref_cache[0][scan8[n]]][sl->ref_cache[1][scan8[n]]][sl->mb_y & 1] != 32)) ||
|
|
sl->use_weight == 1)
|
|
mc_part_weighted(h, sl, n, square, height, delta, dest_y, dest_cb, dest_cr,
|
|
x_offset, y_offset, qpix_put, chroma_put,
|
|
weight_op[0], weight_op[1], weight_avg[0],
|
|
weight_avg[1], list0, list1, PIXEL_SHIFT, CHROMA_IDC);
|
|
else
|
|
mc_part_std(h, sl, n, square, height, delta, dest_y, dest_cb, dest_cr,
|
|
x_offset, y_offset, qpix_put, chroma_put, qpix_avg,
|
|
chroma_avg, list0, list1, PIXEL_SHIFT, CHROMA_IDC);
|
|
}
|
|
|
|
static void MCFUNC(hl_motion)(const H264Context *h, H264SliceContext *sl,
|
|
uint8_t *dest_y,
|
|
uint8_t *dest_cb, uint8_t *dest_cr,
|
|
qpel_mc_func(*qpix_put)[16],
|
|
const h264_chroma_mc_func(*chroma_put),
|
|
qpel_mc_func(*qpix_avg)[16],
|
|
const h264_chroma_mc_func(*chroma_avg),
|
|
const h264_weight_func *weight_op,
|
|
const h264_biweight_func *weight_avg)
|
|
{
|
|
const int mb_xy = sl->mb_xy;
|
|
const int mb_type = h->cur_pic.mb_type[mb_xy];
|
|
|
|
av_assert2(IS_INTER(mb_type));
|
|
|
|
if (HAVE_THREADS && (h->avctx->active_thread_type & FF_THREAD_FRAME))
|
|
await_references(h, sl);
|
|
prefetch_motion(h, sl, 0, PIXEL_SHIFT, CHROMA_IDC);
|
|
|
|
if (IS_16X16(mb_type)) {
|
|
mc_part(h, sl, 0, 1, 16, 0, dest_y, dest_cb, dest_cr, 0, 0,
|
|
qpix_put[0], chroma_put[0], qpix_avg[0], chroma_avg[0],
|
|
weight_op, weight_avg,
|
|
IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
|
|
} else if (IS_16X8(mb_type)) {
|
|
mc_part(h, sl, 0, 0, 8, 8 << PIXEL_SHIFT, dest_y, dest_cb, dest_cr, 0, 0,
|
|
qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
|
|
weight_op, weight_avg,
|
|
IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
|
|
mc_part(h, sl, 8, 0, 8, 8 << PIXEL_SHIFT, dest_y, dest_cb, dest_cr, 0, 4,
|
|
qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
|
|
weight_op, weight_avg,
|
|
IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));
|
|
} else if (IS_8X16(mb_type)) {
|
|
mc_part(h, sl, 0, 0, 16, 8 * sl->mb_linesize, dest_y, dest_cb, dest_cr, 0, 0,
|
|
qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
|
|
&weight_op[1], &weight_avg[1],
|
|
IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
|
|
mc_part(h, sl, 4, 0, 16, 8 * sl->mb_linesize, dest_y, dest_cb, dest_cr, 4, 0,
|
|
qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
|
|
&weight_op[1], &weight_avg[1],
|
|
IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));
|
|
} else {
|
|
int i;
|
|
|
|
av_assert2(IS_8X8(mb_type));
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
const int sub_mb_type = sl->sub_mb_type[i];
|
|
const int n = 4 * i;
|
|
int x_offset = (i & 1) << 2;
|
|
int y_offset = (i & 2) << 1;
|
|
|
|
if (IS_SUB_8X8(sub_mb_type)) {
|
|
mc_part(h, sl, n, 1, 8, 0, dest_y, dest_cb, dest_cr,
|
|
x_offset, y_offset,
|
|
qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
|
|
&weight_op[1], &weight_avg[1],
|
|
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
|
|
} else if (IS_SUB_8X4(sub_mb_type)) {
|
|
mc_part(h, sl, n, 0, 4, 4 << PIXEL_SHIFT, dest_y, dest_cb, dest_cr,
|
|
x_offset, y_offset,
|
|
qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
|
|
&weight_op[1], &weight_avg[1],
|
|
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
|
|
mc_part(h, sl, n + 2, 0, 4, 4 << PIXEL_SHIFT,
|
|
dest_y, dest_cb, dest_cr, x_offset, y_offset + 2,
|
|
qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
|
|
&weight_op[1], &weight_avg[1],
|
|
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
|
|
} else if (IS_SUB_4X8(sub_mb_type)) {
|
|
mc_part(h, sl, n, 0, 8, 4 * sl->mb_linesize,
|
|
dest_y, dest_cb, dest_cr, x_offset, y_offset,
|
|
qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
|
|
&weight_op[2], &weight_avg[2],
|
|
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
|
|
mc_part(h, sl, n + 1, 0, 8, 4 * sl->mb_linesize,
|
|
dest_y, dest_cb, dest_cr, x_offset + 2, y_offset,
|
|
qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
|
|
&weight_op[2], &weight_avg[2],
|
|
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
|
|
} else {
|
|
int j;
|
|
av_assert2(IS_SUB_4X4(sub_mb_type));
|
|
for (j = 0; j < 4; j++) {
|
|
int sub_x_offset = x_offset + 2 * (j & 1);
|
|
int sub_y_offset = y_offset + (j & 2);
|
|
mc_part(h, sl, n + j, 1, 4, 0,
|
|
dest_y, dest_cb, dest_cr, sub_x_offset, sub_y_offset,
|
|
qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
|
|
&weight_op[2], &weight_avg[2],
|
|
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (USES_LIST(mb_type, 1))
|
|
prefetch_motion(h, sl, 1, PIXEL_SHIFT, CHROMA_IDC);
|
|
}
|
|
|