Re: [discuss-webrtc] confused about "rtcp-mux"

[Philipp Hancke]

2016-08-05 6:11 GMT+02:00 Chen Cong <zombi...@gmail.com>:

Hi,

I build a server to relay the video by libnice, and I am confused about  "rtcp-mux" in SDP.

 

As "RFC 5761" mentioned ,  "rtcp-mux" in the offer sdp means the answer should send both RTP and RTCP to one port.  And I found the sdp contains "rtcp-mux" in Chrome ,  but the  browser generated both RTP candidate and RTCP candidate (Is it a bug in Chrome ? ).

No, Chrome is behaving as it should:

https://tools.ietf.org/html/rfc5761#section-5.1.3

You might try setting http://w3c.github.io/webrtc-pc/#rtcrtcpmuxpolicy-enum to require since you know that your server will always support rtcp-mux.

[Chen Cong]

Thanks, it is very helpful. 

在 2016年8月5日星期五 UTC+8下午1:08:02，Philipp Hancke写道：