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ffmpeg.wasm-core
Commit 6c9b82b6 authored by Michael Niedermayer's avatar Michael Niedermayer
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avcodec/mpeg4videodec: move bug workaround code into seperate function 

Signed-off-by: 's avatarMichael Niedermayer <michaelni@gmx.at>
parent ee9d53e5
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Showing with 115 additions and 104 deletions
libavcodec/h263dec.c
View file @ 6c9b82b6
...@@ -491,111 +491,8 @@ retry: ...@@ -491,111 +491,8 @@ retry:
avctx->has_b_frames = !s->low_delay; avctx->has_b_frames = !s->low_delay;
if (s->xvid_build == -1 && s->divx_version == -1 && s->lavc_build == -1) { if (ff_mpeg4_workaround_bugs(avctx) == 1)
if (s->stream_codec_tag == AV_RL32("XVID") ||
s->codec_tag == AV_RL32("XVID") ||
s->codec_tag == AV_RL32("XVIX") ||
s->codec_tag == AV_RL32("RMP4") ||
s->codec_tag == AV_RL32("ZMP4") ||
s->codec_tag == AV_RL32("SIPP"))
s->xvid_build = 0;
}
if (s->xvid_build == -1 && s->divx_version == -1 && s->lavc_build == -1)
if (s->codec_tag == AV_RL32("DIVX") && s->vo_type == 0 &&
s->vol_control_parameters == 0)
s->divx_version = 400; // divx 4
if (s->xvid_build >= 0 && s->divx_version >= 0) {
s->divx_version =
s->divx_build = -1;
}
if (s->workaround_bugs & FF_BUG_AUTODETECT) {
if (s->codec_tag == AV_RL32("XVIX"))
s->workaround_bugs |= FF_BUG_XVID_ILACE;
if (s->codec_tag == AV_RL32("UMP4"))
s->workaround_bugs |= FF_BUG_UMP4;
if (s->divx_version >= 500 && s->divx_build < 1814)
s->workaround_bugs |= FF_BUG_QPEL_CHROMA;
if (s->divx_version > 502 && s->divx_build < 1814)
s->workaround_bugs |= FF_BUG_QPEL_CHROMA2;
if (s->xvid_build <= 3U)
s->padding_bug_score = 256 * 256 * 256 * 64;
if (s->xvid_build <= 1U)
s->workaround_bugs |= FF_BUG_QPEL_CHROMA;
if (s->xvid_build <= 12U)
s->workaround_bugs |= FF_BUG_EDGE;
if (s->xvid_build <= 32U)
s->workaround_bugs |= FF_BUG_DC_CLIP;
#define SET_QPEL_FUNC(postfix1, postfix2) \
s->dsp.put_ ## postfix1 = ff_put_ ## postfix2; \
s->dsp.put_no_rnd_ ## postfix1 = ff_put_no_rnd_ ## postfix2; \
s->dsp.avg_ ## postfix1 = ff_avg_ ## postfix2;
if (s->lavc_build < 4653U)
s->workaround_bugs |= FF_BUG_STD_QPEL;
if (s->lavc_build < 4655U)
s->workaround_bugs |= FF_BUG_DIRECT_BLOCKSIZE;
if (s->lavc_build < 4670U)
s->workaround_bugs |= FF_BUG_EDGE;
if (s->lavc_build <= 4712U)
s->workaround_bugs |= FF_BUG_DC_CLIP;
if (s->divx_version >= 0)
s->workaround_bugs |= FF_BUG_DIRECT_BLOCKSIZE;
if (s->divx_version == 501 && s->divx_build == 20020416)
s->padding_bug_score = 256 * 256 * 256 * 64;
if (s->divx_version < 500U)
s->workaround_bugs |= FF_BUG_EDGE;
if (s->divx_version >= 0)
s->workaround_bugs |= FF_BUG_HPEL_CHROMA;
}
if (s->workaround_bugs & FF_BUG_STD_QPEL) {
SET_QPEL_FUNC(qpel_pixels_tab[0][5], qpel16_mc11_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[0][7], qpel16_mc31_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[0][9], qpel16_mc12_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[0][11], qpel16_mc32_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[0][13], qpel16_mc13_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[0][15], qpel16_mc33_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[1][5], qpel8_mc11_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[1][7], qpel8_mc31_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[1][9], qpel8_mc12_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[1][11], qpel8_mc32_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[1][13], qpel8_mc13_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[1][15], qpel8_mc33_old_c)
}
if (avctx->debug & FF_DEBUG_BUGS)
av_log(s->avctx, AV_LOG_DEBUG,
"bugs: %X lavc_build:%d xvid_build:%d divx_version:%d divx_build:%d %s\n",
s->workaround_bugs, s->lavc_build, s->xvid_build,
s->divx_version, s->divx_build, s->divx_packed ? "p" : "");
#if HAVE_MMX
if (s->codec_id == AV_CODEC_ID_MPEG4 && s->xvid_build >= 0 &&
avctx->idct_algo == FF_IDCT_AUTO &&
(av_get_cpu_flags() & AV_CPU_FLAG_MMX)) {
avctx->idct_algo = FF_IDCT_XVIDMMX;
ff_dct_common_init(s);
goto retry; goto retry;
}
#endif
/* After H263 & mpeg4 header decode we have the height, width, /* After H263 & mpeg4 header decode we have the height, width,
* and other parameters. So then we could init the picture. * and other parameters. So then we could init the picture.
......
libavcodec/mpeg4video.h
View file @ 6c9b82b6
...@@ -119,6 +119,7 @@ int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s); ...@@ -119,6 +119,7 @@ int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s);
int ff_mpeg4_decode_video_packet_header(Mpeg4DecContext *ctx); int ff_mpeg4_decode_video_packet_header(Mpeg4DecContext *ctx);
void ff_mpeg4_init_direct_mv(MpegEncContext *s); void ff_mpeg4_init_direct_mv(MpegEncContext *s);
void ff_mpeg4videodec_static_init(void); void ff_mpeg4videodec_static_init(void);
int ff_mpeg4_workaround_bugs(AVCodecContext *avctx);
/** /**
* *
......
libavcodec/mpeg4videodec.c
View file @ 6c9b82b6
...@@ -2095,6 +2095,119 @@ static int decode_user_data(MpegEncContext *s, GetBitContext *gb) ...@@ -2095,6 +2095,119 @@ static int decode_user_data(MpegEncContext *s, GetBitContext *gb)
return 0; return 0;
} }
int ff_mpeg4_workaround_bugs(AVCodecContext *avctx)
{
Mpeg4DecContext *ctx = avctx->priv_data;
MpegEncContext *s = &ctx->m;
if (s->xvid_build == -1 && s->divx_version == -1 && s->lavc_build == -1) {
if (s->stream_codec_tag == AV_RL32("XVID") ||
s->codec_tag == AV_RL32("XVID") ||
s->codec_tag == AV_RL32("XVIX") ||
s->codec_tag == AV_RL32("RMP4") ||
s->codec_tag == AV_RL32("ZMP4") ||
s->codec_tag == AV_RL32("SIPP"))
s->xvid_build = 0;
}
if (s->xvid_build == -1 && s->divx_version == -1 && s->lavc_build == -1)
if (s->codec_tag == AV_RL32("DIVX") && s->vo_type == 0 &&
s->vol_control_parameters == 0)
s->divx_version = 400; // divx 4
if (s->xvid_build >= 0 && s->divx_version >= 0) {
s->divx_version =
s->divx_build = -1;
}
if (s->workaround_bugs & FF_BUG_AUTODETECT) {
if (s->codec_tag == AV_RL32("XVIX"))
s->workaround_bugs |= FF_BUG_XVID_ILACE;
if (s->codec_tag == AV_RL32("UMP4"))
s->workaround_bugs |= FF_BUG_UMP4;
if (s->divx_version >= 500 && s->divx_build < 1814)
s->workaround_bugs |= FF_BUG_QPEL_CHROMA;
if (s->divx_version > 502 && s->divx_build < 1814)
s->workaround_bugs |= FF_BUG_QPEL_CHROMA2;
if (s->xvid_build <= 3U)
s->padding_bug_score = 256 * 256 * 256 * 64;
if (s->xvid_build <= 1U)
s->workaround_bugs |= FF_BUG_QPEL_CHROMA;
if (s->xvid_build <= 12U)
s->workaround_bugs |= FF_BUG_EDGE;
if (s->xvid_build <= 32U)
s->workaround_bugs |= FF_BUG_DC_CLIP;
#define SET_QPEL_FUNC(postfix1, postfix2) \
s->dsp.put_ ## postfix1 = ff_put_ ## postfix2; \
s->dsp.put_no_rnd_ ## postfix1 = ff_put_no_rnd_ ## postfix2; \
s->dsp.avg_ ## postfix1 = ff_avg_ ## postfix2;
if (s->lavc_build < 4653U)
s->workaround_bugs |= FF_BUG_STD_QPEL;
if (s->lavc_build < 4655U)
s->workaround_bugs |= FF_BUG_DIRECT_BLOCKSIZE;
if (s->lavc_build < 4670U)
s->workaround_bugs |= FF_BUG_EDGE;
if (s->lavc_build <= 4712U)
s->workaround_bugs |= FF_BUG_DC_CLIP;
if (s->divx_version >= 0)
s->workaround_bugs |= FF_BUG_DIRECT_BLOCKSIZE;
if (s->divx_version == 501 && s->divx_build == 20020416)
s->padding_bug_score = 256 * 256 * 256 * 64;
if (s->divx_version < 500U)
s->workaround_bugs |= FF_BUG_EDGE;
if (s->divx_version >= 0)
s->workaround_bugs |= FF_BUG_HPEL_CHROMA;
}
if (s->workaround_bugs & FF_BUG_STD_QPEL) {
SET_QPEL_FUNC(qpel_pixels_tab[0][5], qpel16_mc11_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[0][7], qpel16_mc31_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[0][9], qpel16_mc12_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[0][11], qpel16_mc32_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[0][13], qpel16_mc13_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[0][15], qpel16_mc33_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[1][5], qpel8_mc11_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[1][7], qpel8_mc31_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[1][9], qpel8_mc12_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[1][11], qpel8_mc32_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[1][13], qpel8_mc13_old_c)
SET_QPEL_FUNC(qpel_pixels_tab[1][15], qpel8_mc33_old_c)
}
if (avctx->debug & FF_DEBUG_BUGS)
av_log(s->avctx, AV_LOG_DEBUG,
"bugs: %X lavc_build:%d xvid_build:%d divx_version:%d divx_build:%d %s\n",
s->workaround_bugs, s->lavc_build, s->xvid_build,
s->divx_version, s->divx_build, s->divx_packed ? "p" : "");
#if HAVE_MMX
if (s->codec_id == AV_CODEC_ID_MPEG4 && s->xvid_build >= 0 &&
avctx->idct_algo == FF_IDCT_AUTO &&
(av_get_cpu_flags() & AV_CPU_FLAG_MMX)) {
avctx->idct_algo = FF_IDCT_XVIDMMX;
ff_dct_common_init(s);
return 1;
}
#endif
return 0;
}
static int decode_vop_header(Mpeg4DecContext *ctx, GetBitContext *gb) static int decode_vop_header(Mpeg4DecContext *ctx, GetBitContext *gb)
{ {
MpegEncContext *s = &ctx->m; MpegEncContext *s = &ctx->m;
......
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