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avcodec/takdec: Fix runtime error: left shift of negative value -360

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Fixes: 1739/clusterfuzz-testcase-minimized-5399237707694080

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-05-22 21:43:01 +02:00
parent 64d0dad93c
commit 0ce7cf0c86
1 changed files with 1 additions and 1 deletions
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2
libavcodec/takdec.c
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@ -653,7 +653,7 @@ static int decorrelate(TAKDecContext *s, int c1, int c2, int length)
s->residues[i ] * s->filter[0];
}
v = (av_clip_intp2(v >> 10, 13) << dshift) - *p1;
v = av_clip_intp2(v >> 10, 13) * (1 << dshift) - *p1;
*p1++ = v;
}