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| author | Michael Niedermayer <michaelni@gmx.at> | 2012-03-12 18:26:50 -0700 |
|---|---|---|
| committer | Ronald S. Bultje <rsbultje@gmail.com> | 2012-03-13 10:04:23 -0700 |
| commit | 758ec111538ccd487686e8677aa754ee4d82beaa (patch) | |
| tree | 2f48d3a24e8c442c43b7b62ff11f5634097e4136 /libavcodec | |
| parent | 64334ddbbc7fce490c895c54106291d0b128e830 (diff) | |
| download | ffmpeg-streaming-758ec111538ccd487686e8677aa754ee4d82beaa.zip ffmpeg-streaming-758ec111538ccd487686e8677aa754ee4d82beaa.tar.gz | |
h264: Fix invalid interlaced/progressive MB combinations for direct mode prediction.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/h264_direct.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/libavcodec/h264_direct.c b/libavcodec/h264_direct.c index 9010cac..cc6e018 100644 --- a/libavcodec/h264_direct.c +++ b/libavcodec/h264_direct.c @@ -253,6 +253,10 @@ static void pred_spatial_direct_motion(H264Context * const h, int *mb_type){ mb_type_col[1] = h->ref_list[1][0].f.mb_type[mb_xy + s->mb_stride]; b8_stride = 2+4*s->mb_stride; b4_stride *= 6; + if (IS_INTERLACED(mb_type_col[0]) != IS_INTERLACED(mb_type_col[1])) { + mb_type_col[0] &= ~MB_TYPE_INTERLACED; + mb_type_col[1] &= ~MB_TYPE_INTERLACED; + } sub_mb_type |= MB_TYPE_16x16|MB_TYPE_DIRECT2; /* B_SUB_8x8 */ if( (mb_type_col[0] & MB_TYPE_16x16_OR_INTRA) @@ -439,6 +443,10 @@ static void pred_temp_direct_motion(H264Context * const h, int *mb_type){ mb_type_col[1] = h->ref_list[1][0].f.mb_type[mb_xy + s->mb_stride]; b8_stride = 2+4*s->mb_stride; b4_stride *= 6; + if (IS_INTERLACED(mb_type_col[0]) != IS_INTERLACED(mb_type_col[1])) { + mb_type_col[0] &= ~MB_TYPE_INTERLACED; + mb_type_col[1] &= ~MB_TYPE_INTERLACED; + } sub_mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_SUB_8x8 */ |
