Signed-off-by: Andreas Cadhalpun <andreas.cadhal...@googlemail.com>
---
 libavutil/opt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavutil/opt.c b/libavutil/opt.c
index f855ccb..6ae2af6 100644
--- a/libavutil/opt.c
+++ b/libavutil/opt.c
@@ -97,7 +97,7 @@ static int read_number(const AVOption *o, const void *dst, 
double *num, int *den
 static int write_number(void *obj, const AVOption *o, void *dst, double num, 
int den, int64_t intnum)
 {
     if (o->type != AV_OPT_TYPE_FLAGS &&
-        (o->max * den < num * intnum || o->min * den > num * intnum)) {
+        (!den || 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, o->name, o->min, o->max);
-- 
2.10.2
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