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avcodec/ituh263dec: Fix undefined left shift of negative number 

Fixes ticket #8160.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 324487b596)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2019-09-28 04:26:07 +02:00
parent ab3b008dad
commit ceed3603e1
1 changed files with 1 additions and 1 deletions
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libavcodec/ituh263dec.c
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@ -1286,7 +1286,7 @@ int ff_h263_decode_picture_header(MpegEncContext *s)
for(i=0; i<13; i++){
for(j=0; j<3; j++){
int v= get_bits(&s->gb, 8);
v |= get_sbits(&s->gb, 8)<<8;
v |= get_sbits(&s->gb, 8) * (1 << 8);
av_log(s->avctx, AV_LOG_DEBUG, " %5d", v);
}
av_log(s->avctx, AV_LOG_DEBUG, "\n");