MrBesen/ffmpeg
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Merge remote-tracking branch 'qatar/master'

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* qatar/master:
  rtpdec: Send a valid "delay since SR" value in the RTCP RR packets

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-01-13 14:05:55 +01:00
commit 3bcf443f91
2 changed files with 4 additions and 2 deletions
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5
libavformat/rtpdec.c
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@ -135,6 +135,7 @@ static int rtcp_parse_packet(RTPDemuxContext *s, const unsigned char *buf,
return AVERROR_INVALIDDATA;
}
s->last_rtcp_reception_time = av_gettime();
s->last_rtcp_ntp_time = AV_RB64(buf + 8);
s->last_rtcp_timestamp = AV_RB32(buf + 16);
if (s->first_rtcp_ntp_time == AV_NOPTS_VALUE) {
@ -261,7 +262,6 @@ int ff_rtp_check_and_send_back_rr(RTPDemuxContext *s, URLContext *fd,
uint32_t lost_interval;
uint32_t expected;
uint32_t fraction;
uint64_t ntp_time = s->last_rtcp_ntp_time; // TODO: Get local ntp time?
if ((!fd && !avio) || (count < 1))
return -1;
@ -315,7 +315,8 @@ int ff_rtp_check_and_send_back_rr(RTPDemuxContext *s, URLContext *fd,
avio_wb32(pb, 0); /* delay since last SR */
} else {
uint32_t middle_32_bits = s->last_rtcp_ntp_time >> 16; // this is valid, right? do we need to handle 64 bit values special?
uint32_t delay_since_last = ntp_time - s->last_rtcp_ntp_time;
uint32_t delay_since_last = av_rescale(av_gettime() - s->last_rtcp_reception_time,
65536, AV_TIME_BASE);
avio_wb32(pb, middle_32_bits); /* last SR timestamp */
avio_wb32(pb, delay_since_last); /* delay since last SR */

1
libavformat/rtpdec.h
View File

@ -175,6 +175,7 @@ struct RTPDemuxContext {
/* rtcp sender statistics receive */
int64_t last_rtcp_ntp_time;
int64_t last_rtcp_reception_time;
int64_t first_rtcp_ntp_time;
uint32_t last_rtcp_timestamp;
int64_t rtcp_ts_offset;