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-rw-r--r--libavformat/utils.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/libavformat/utils.c b/libavformat/utils.c
index d6bee908b5..851df6b2d9 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -3152,9 +3152,13 @@ void url_split(char *proto, int proto_size,
void av_set_pts_info(AVStream *s, int pts_wrap_bits,
int pts_num, int pts_den)
{
+ unsigned int gcd= ff_gcd(pts_num, pts_den);
s->pts_wrap_bits = pts_wrap_bits;
- s->time_base.num = pts_num;
- s->time_base.den = pts_den;
+ s->time_base.num = pts_num/gcd;
+ s->time_base.den = pts_den/gcd;
+
+ if(gcd>1)
+ av_log(NULL, AV_LOG_DEBUG, "st:%d removing common factor %d from timebase\n", s->index, gcd);
}
/* fraction handling */