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-rw-r--r--libavutil/mathematics.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/libavutil/mathematics.c b/libavutil/mathematics.c
index 48373bf759..c8f1e1cd89 100644
--- a/libavutil/mathematics.c
+++ b/libavutil/mathematics.c
@@ -188,7 +188,8 @@ simple_round:
int64_t av_add_stable(AVRational ts_tb, int64_t ts, AVRational inc_tb, int64_t inc)
{
- inc_tb = av_mul_q(inc_tb, (AVRational) {inc, 1});
+ if (inc != 1)
+ inc_tb = av_mul_q(inc_tb, (AVRational) {inc, 1});
if (av_cmp_q(inc_tb, ts_tb) < 0) {
//increase step is too small for even 1 step to be representable