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avutil/opt: Avoid division by 0 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-05-03 16:14:55 +02:00
parent a141948a8b
commit 52835cb8e1
1 changed files with 2 additions and 1 deletions
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3
libavutil/opt.c
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@ -85,8 +85,9 @@ static int write_number(void *obj, const AVOption *o, void *dst, double num, int
{
if (o->type != AV_OPT_TYPE_FLAGS &&
(o->max * den < num * intnum || o->min * den > num * intnum)) {
num = den ? num*intnum/den : (num*intnum ? INFINITY : NAN);
av_log(obj, AV_LOG_ERROR, "Value %f for parameter '%s' out of range [%g - %g]\n",
num*intnum/den, o->name, o->min, o->max);
num, o->name, o->min, o->max);
return AVERROR(ERANGE);
}
if (o->type == AV_OPT_TYPE_FLAGS) {