diff options
Diffstat (limited to 'libavformat/rtpdec.c')
| -rw-r--r-- | libavformat/rtpdec.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/libavformat/rtpdec.c b/libavformat/rtpdec.c index d204187..bd3566e 100644 --- a/libavformat/rtpdec.c +++ b/libavformat/rtpdec.c @@ -80,6 +80,8 @@ static int rtcp_parse_packet(RTPDemuxContext *s, const unsigned char *buf, int l if (buf[1] != 200) return -1; s->last_rtcp_ntp_time = AV_RB64(buf + 8); + if (s->first_rtcp_ntp_time == AV_NOPTS_VALUE) + s->first_rtcp_ntp_time = s->last_rtcp_ntp_time; s->last_rtcp_timestamp = AV_RB32(buf + 16); return 0; } @@ -326,6 +328,7 @@ RTPDemuxContext *rtp_parse_open(AVFormatContext *s1, AVStream *st, URLContext *r return NULL; s->payload_type = payload_type; s->last_rtcp_ntp_time = AV_NOPTS_VALUE; + s->first_rtcp_ntp_time = AV_NOPTS_VALUE; s->ic = s1; s->st = st; s->rtp_payload_data = rtp_payload_data; @@ -433,7 +436,7 @@ static void finalize_packet(RTPDemuxContext *s, AVPacket *pkt, uint32_t timestam /* compute pts from timestamp with received ntp_time */ delta_timestamp = timestamp - s->last_rtcp_timestamp; /* convert to the PTS timebase */ - addend = av_rescale(s->last_rtcp_ntp_time, s->st->time_base.den, (uint64_t)s->st->time_base.num << 32); + addend = av_rescale(s->last_rtcp_ntp_time - s->first_rtcp_ntp_time, s->st->time_base.den, (uint64_t)s->st->time_base.num << 32); pkt->pts = addend + delta_timestamp; } } |
