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msmpeg4dec: fix coeff index

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Fixes assertion failure

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-12-12 16:56:10 +01:00
parent 028cc42a16
commit 03b9d4a7dc
1 changed files with 1 additions and 0 deletions
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libavcodec/msmpeg4.c
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@ -1145,6 +1145,7 @@ int ff_msmpeg4_decode_block(MpegEncContext * s, DCTELEM * block,
const int left= get_bits_left(&s->gb);
if(((i+192 == 64 && level/qmul==-1) || !(s->err_recognition&(AV_EF_BITSTREAM|AV_EF_COMPLIANT))) && left>=0){
av_log(s->avctx, AV_LOG_ERROR, "ignoring overflow at %d %d\n", s->mb_x, s->mb_y);
i = 63;
break;
}else{
av_log(s->avctx, AV_LOG_ERROR, "ac-tex damaged at %d %d\n", s->mb_x, s->mb_y);