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-rw-r--r--libavformat/utils.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/utils.c b/libavformat/utils.c
index b5893de799..417e81c5d7 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -633,7 +633,7 @@ static void compute_pkt_fields(AVFormatContext *s, AVStream *st,
st->last_IP_pts= pkt->pts;
/* cannot compute PTS if not present (we can compute it only
by knowing the futur */
- } else {
+ } else if(pkt->pts != AV_NOPTS_VALUE || pkt->dts != AV_NOPTS_VALUE || pkt->duration){
if(pkt->pts != AV_NOPTS_VALUE && pkt->duration){
int64_t old_diff= FFABS(st->cur_dts - pkt->duration - pkt->pts);
int64_t new_diff= FFABS(st->cur_dts - pkt->pts);