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| author | Kostya Shishkov <kostya.shishkov@gmail.com> | 2010-07-10 14:36:53 +0000 |
|---|---|---|
| committer | Kostya Shishkov <kostya.shishkov@gmail.com> | 2010-07-10 14:36:53 +0000 |
| commit | 42ff9d7a586c93bf145a11fe1d54410d8fe0fa1b (patch) | |
| tree | 548610fe88472351869da3e29ac8fae22a412f81 /libavcodec | |
| parent | 42d1e7a287f0395a7c00c6ff5b288e5324062dd1 (diff) | |
| download | ffmpeg-streaming-42ff9d7a586c93bf145a11fe1d54410d8fe0fa1b.zip ffmpeg-streaming-42ff9d7a586c93bf145a11fe1d54410d8fe0fa1b.tar.gz | |
Make WMV3 decoder print more errors when decoding beta WMV9 files.
As a side effect it will also decode a lot of P-frames from those.
Originally committed as revision 24161 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/vc1.c | 2 | ||||
| -rw-r--r-- | libavcodec/vc1dec.c | 9 |
2 files changed, 4 insertions, 7 deletions
diff --git a/libavcodec/vc1.c b/libavcodec/vc1.c index 7d00072..cca345d 100644 --- a/libavcodec/vc1.c +++ b/libavcodec/vc1.c @@ -388,7 +388,7 @@ int vc1_decode_sequence_header(AVCodecContext *avctx, VC1Context *v, GetBitConte // av_log(avctx, AV_LOG_ERROR, // "0 for reserved RES_RTM_FLAG is forbidden\n"); av_log(avctx, AV_LOG_ERROR, - "Old WMV3 version detected, only I-frames will be decoded\n"); + "Old WMV3 version detected, some frames may be decoded incorrectly\n"); //return -1; } //TODO: figure out what they mean (always 0x402F) diff --git a/libavcodec/vc1dec.c b/libavcodec/vc1dec.c index 3c596be..e547c26 100644 --- a/libavcodec/vc1dec.c +++ b/libavcodec/vc1dec.c @@ -1996,7 +1996,9 @@ static int vc1_decode_p_block(VC1Context *v, DCTELEM block[64], int n, int mquan if(ttblk == TT_4X4) { subblkpat = ~(get_vlc2(gb, ff_vc1_subblkpat_vlc[v->tt_index].table, VC1_SUBBLKPAT_VLC_BITS, 1) + 1); } - if((ttblk != TT_8X8 && ttblk != TT_4X4) && (v->ttmbf || (ttmb != -1 && (ttmb & 8) && !first_block))) { + if((ttblk != TT_8X8 && ttblk != TT_4X4) + && ((v->ttmbf || (ttmb != -1 && (ttmb & 8) && !first_block)) + || (!v->res_rtm_flag && !first_block))) { subblkpat = decode012(gb); if(subblkpat) subblkpat ^= 3; //swap decoded pattern bits if(ttblk == TT_8X4_TOP || ttblk == TT_8X4_BOTTOM) ttblk = TT_8X4; @@ -3212,11 +3214,6 @@ static int vc1_decode_frame(AVCodecContext *avctx, } } - if(s->pict_type != FF_I_TYPE && !v->res_rtm_flag){ - av_free(buf2); - return -1; - } - // for hurry_up==5 s->current_picture.pict_type= s->pict_type; s->current_picture.key_frame= s->pict_type == FF_I_TYPE; |
