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avformat/matroskadec: fix integer overflow

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Fixes fate-mkv with ekopath 4

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-05-19 23:38:01 +02:00
parent 1a5f1bcff0
commit 729fa55b8f
1 changed files with 1 additions and 1 deletions
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2
libavformat/matroskadec.c
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@ -2284,7 +2284,7 @@ static int matroska_parse_block(MatroskaDemuxContext *matroska, uint8_t *data,
return res;
av_assert1(block_duration != AV_NOPTS_VALUE);
block_time = AV_RB16(data);
block_time = sign_extend(AV_RB16(data), 16);
data += 2;
flags = *data++;
size -= 3;