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h264: only assign H264Picture::mbaff for first slice.

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The value must be identical between slices, since mbaff depends on
picture_structure and sps, both of which are checked to be identical
to the first slice before this point.

In practice, this silences some tsan warnings in fate-h264.
This commit is contained in:
Ronald S. Bultje 2017-03-29 09:33:47 -04:00
parent b5300c8ad8
commit 1ddc37051f
1 changed files with 5 additions and 1 deletions
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6
libavcodec/h264_direct.c
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@ -138,7 +138,11 @@ void ff_h264_direct_ref_list_init(const H264Context *const h, H264SliceContext *
memcpy(cur->ref_poc[1], cur->ref_poc[0], sizeof(cur->ref_poc[0]));
}
cur->mbaff = FRAME_MBAFF(h);
if (h->current_slice == 0) {
cur->mbaff = FRAME_MBAFF(h);
} else {
av_assert0(cur->mbaff == FRAME_MBAFF(h));
}
sl->col_fieldoff = 0;