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avutil/mathematics: Fix division by 0

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Fixes: CID1341571

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2015-12-09 17:39:38 +01:00
parent 8cfa912e25
commit bc8b1e694c
1 changed files with 1 additions and 1 deletions
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libavutil/mathematics.c
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@ -85,7 +85,7 @@ int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding rnd)
else {
int64_t ad = a / c;
int64_t a2 = (a % c * b + r) / c;
if (ad >= INT32_MAX && ad > (INT64_MAX - a2) / b)
if (ad >= INT32_MAX && b && ad > (INT64_MAX - a2) / b)
return INT64_MIN;
return ad * b + a2;
}