diff options
| author | Michael Niedermayer <michaelni@gmx.at> | 2009-12-09 14:05:39 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2009-12-09 14:05:39 +0000 |
| commit | e4d1d920b097912ac423eee1bba28c8b68e89053 (patch) | |
| tree | 7b286190c8e1d5d6c592ad7961b56fe417b21b20 | |
| parent | 52255d17466e01aea5113a21f782efc76258b3f3 (diff) | |
| download | ffmpeg-e4d1d920b097912ac423eee1bba28c8b68e89053.tar.gz | |
Improve time_increment_bits guessing code.
Originally committed as revision 20785 to svn://svn.ffmpeg.org/ffmpeg/trunk
| -rw-r--r-- | libavcodec/h263.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/libavcodec/h263.c b/libavcodec/h263.c index 831e4c1697..de76792139 100644 --- a/libavcodec/h263.c +++ b/libavcodec/h263.c @@ -5903,7 +5903,11 @@ static int decode_vop_header(MpegEncContext *s, GetBitContext *gb){ av_log(s->avctx, AV_LOG_ERROR, "hmm, seems the headers are not complete, trying to guess time_increment_bits\n"); for(s->time_increment_bits=1 ;s->time_increment_bits<16; s->time_increment_bits++){ - if(show_bits(gb, s->time_increment_bits+1)&1) break; + if ( s->pict_type == FF_P_TYPE + || (s->pict_type == FF_S_TYPE && s->vol_sprite_usage==GMC_SPRITE)) { + if((show_bits(gb, s->time_increment_bits+6)&0x37) == 0x30) break; + }else + if((show_bits(gb, s->time_increment_bits+5)&0x1F) == 0x18) break; } av_log(s->avctx, AV_LOG_ERROR, "my guess is %d bits ;)\n",s->time_increment_bits); |