RTCP port setup in SDP
Emmanuel Riou asked 8 years ago
Hi all,
I am trying to ingest a raw RTP stream by feeding pullstream with an SDP file like this:
pullStream uri=file:///tmp/test.sdp localStreamName=test
Here is my SDP:
v=0
o=- 0 0 IN IP4 127.0.0.1
s=No Name
t=0 0
m=video 56512 RTP/AVP 107
c=IN IP4 127.0.0.1
a=rtpmap:107 H264/90000
a=rtcp:56512 IN IP4 127.0.0.1
a=fmtp:107 profile-level-id=42e01f;packetization-mode=1;sprop-parameter-sets=Z0LAHw6MjUBQF7ywDwiEag==,aBIdOPI=
a=control:trackID=1
m=audio 56510 RTP/AVP 97
c=IN IP4 127.0.0.1
b=AS:128
a=rtpmap:97 MPEG4-GENERIC/48000/2
a=rtcp:56510 IN IP4 127.0.0.1
a=fmtp:97 profile-level-id=1;mode=AAC-hbr;sizelength=13;indexlength=3;indexdeltalength=3; config=119056E500
a=control:trackID=2 So I have 2 RTP streams, 1 audio and 1 video, and my source is forwarding RTCP packets on the same ports as the RTP ones. That\’s why I added those lines: a=rtcp:56512 IN IP4 127.0.0.1 for video and a=rtcp:56512 IN IP4 127.0.0.1 for audio It is unfortunately ignored by evostream with a message like this: /thelib/src/protocols/rtp/streaming/innetrtpstream.cpp:520 RTCP disabled on stream INP(3) with name `test` from protocol IRTP(46). A/V drifting may occur over long periods oftime. I am gonna have audio/video synchronization issues if evostream doesn\’t receive the RTCP Sender Reports from the source. How is RTCP handled by Evostream and how can I setup a RTCP port in my SDP (or is there a way to tell Evostream that RTP and RTCP are multiplexed on the same port?) Thanks! Emmanuel.
o=- 0 0 IN IP4 127.0.0.1
s=No Name
t=0 0
m=video 56512 RTP/AVP 107
c=IN IP4 127.0.0.1
a=rtpmap:107 H264/90000
a=rtcp:56512 IN IP4 127.0.0.1
a=fmtp:107 profile-level-id=42e01f;packetization-mode=1;sprop-parameter-sets=Z0LAHw6MjUBQF7ywDwiEag==,aBIdOPI=
a=control:trackID=1
m=audio 56510 RTP/AVP 97
c=IN IP4 127.0.0.1
b=AS:128
a=rtpmap:97 MPEG4-GENERIC/48000/2
a=rtcp:56510 IN IP4 127.0.0.1
a=fmtp:97 profile-level-id=1;mode=AAC-hbr;sizelength=13;indexlength=3;indexdeltalength=3; config=119056E500
a=control:trackID=2 So I have 2 RTP streams, 1 audio and 1 video, and my source is forwarding RTCP packets on the same ports as the RTP ones. That\’s why I added those lines: a=rtcp:56512 IN IP4 127.0.0.1 for video and a=rtcp:56512 IN IP4 127.0.0.1 for audio It is unfortunately ignored by evostream with a message like this: /thelib/src/protocols/rtp/streaming/innetrtpstream.cpp:520 RTCP disabled on stream INP(3) with name `test` from protocol IRTP(46). A/V drifting may occur over long periods oftime. I am gonna have audio/video synchronization issues if evostream doesn\’t receive the RTCP Sender Reports from the source. How is RTCP handled by Evostream and how can I setup a RTCP port in my SDP (or is there a way to tell Evostream that RTP and RTCP are multiplexed on the same port?) Thanks! Emmanuel.