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avcodec/h264_mb: assert that frame waiting code actually references 2 fields/1 frame

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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Michael Niedermayer 2015-04-04 18:31:00 +02:00
parent 429de04320
commit 60e7d2d7b9
1 changed files with 1 additions and 0 deletions
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libavcodec/h264_mb.c
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@ -176,6 +176,7 @@ static void await_references(const H264Context *h, H264SliceContext *sl)
nrefs[list]--;
if (!FIELD_PICTURE(h) && ref_field_picture) { // frame referencing two fields
av_assert2((ref_pic->parent->reference & 3) == 3);
ff_thread_await_progress(&ref_pic->parent->tf,
FFMIN((row >> 1) - !(row & 1),
pic_height - 1),