}
static int rtp_set_prft(RTPDemuxContext *s, AVPacket *pkt, uint32_t timestamp) {
+ int64_t rtcp_time, delta_timestamp, delta_time;
+
AVProducerReferenceTime *prft =
(AVProducerReferenceTime *) av_packet_new_side_data(
pkt, AV_PKT_DATA_PRFT, sizeof(AVProducerReferenceTime));
if (!prft)
return AVERROR(ENOMEM);
- prft->wallclock = ff_parse_ntp_time(s->last_rtcp_ntp_time) - NTP_OFFSET_US +
- timestamp - s->last_rtcp_timestamp;
+ rtcp_time = ff_parse_ntp_time(s->last_rtcp_ntp_time) - NTP_OFFSET_US;
+ delta_timestamp = (int64_t)timestamp - (int64_t)s->last_rtcp_timestamp;
+ delta_time = av_rescale_q(delta_timestamp, s->st->time_base, AV_TIME_BASE_Q);
+
+ prft->wallclock = rtcp_time + delta_time;
prft->flags = 24;
return 0;
}