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avcodec/aacdec_fixed: Fix runtime error: signed integer overflow: -2147483648 * -1 cannot be represented in type 'int'

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Fixes: 1825/clusterfuzz-testcase-minimized-6002833050566656

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 8e87d146d7)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-05-25 23:01:27 +02:00
parent a49743407b
commit f85a71527a
1 changed files with 1 additions and 1 deletions
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libavcodec/aacdec_fixed.c
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@ -187,7 +187,7 @@ static void subband_scale(int *dst, int *src, int scale, int offset, int len)
round = 1 << (s-1);
for (i=0; i<len; i++) {
out = (int)((int64_t)((int64_t)src[i] * c + round) >> s);
dst[i] = out * ssign;
dst[i] = out * (unsigned)ssign;
}
}
}