st->last_IP_duration = pkt->duration;
if (pkt->dts != AV_NOPTS_VALUE)
st->cur_dts = pkt->dts + st->last_IP_duration;
+ if (pkt->dts != AV_NOPTS_VALUE &&
+ pkt->pts == AV_NOPTS_VALUE &&
+ st->last_IP_duration > 0 &&
+ (st->cur_dts - next_dts) <= 1 &&
+ next_dts != next_pts &&
+ next_pts != AV_NOPTS_VALUE)
+ pkt->pts = next_dts;
+
st->last_IP_duration = pkt->duration;
st->last_IP_pts = pkt->pts;
/* Cannot compute PTS if not present (we can compute it only