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| author | Michael Niedermayer <michaelni@gmx.at> | 2009-12-01 02:07:46 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2009-12-01 02:07:46 +0000 |
| commit | 483aad717e898c265fde51e1a837e51bedff6faa (patch) | |
| tree | 9739193f277068d0f24bf8e72fce8f4401047cdf /libavcodec/mpeg12.c | |
| parent | f40a7fd3162222e1cc8af3b43d4d47033558278b (diff) | |
slif aka "SoftLab MPEG-2 I-frames Codec" support.
Flipping one bit still is popular it seems as a means to create a new codec.
fixes issue1469.
Originally committed as revision 20679 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/mpeg12.c')
| -rw-r--r-- | libavcodec/mpeg12.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libavcodec/mpeg12.c b/libavcodec/mpeg12.c index 6680db2328..b9896aeb0d 100644 --- a/libavcodec/mpeg12.c +++ b/libavcodec/mpeg12.c @@ -1694,6 +1694,9 @@ static int mpeg_decode_slice(Mpeg1Context *s1, int mb_y, s->mb_x=0; + if(mb_y==0 && s->codec_tag == AV_RL32("SLIF")){ + skip_bits1(&s->gb); + }else{ for(;;) { int code = get_vlc2(&s->gb, mbincr_vlc.table, MBINCR_VLC_BITS, 2); if (code < 0){ @@ -1710,6 +1713,8 @@ static int mpeg_decode_slice(Mpeg1Context *s1, int mb_y, break; } } + } + if(s->mb_x >= (unsigned)s->mb_width){ av_log(s->avctx, AV_LOG_ERROR, "initial skip overflow\n"); return -1; |