On Wed, May 8, 2019, at 2:11 PM, Xiemin Chen wrote: > I add a stream instead of replace stream, I think the problem is caused > by the a=sendrecv created by WebRTC client, I will get deeper in to > this.
If it's not adding a stream but replacing like it seems to be, then I could certainly see things not working as bridge_softmix also does not expect to use a stream for both sending and receiving. > Can you point out where's the actual SDP negotiation? I will check it > too. Thanks for your help. Within Asterisk the handle_incoming_sdp function is what does the negotiation and handle_negotiated_sdp_session_media applies the result of that negotiation. The SDP negotiator itself otherwise is within PJSIP itself, specifically pjmedia/src/pjmedia/sdp_neg.c -- Joshua C. Colp Digium - A Sangoma Company | Senior Software Developer 445 Jan Davis Drive NW - Huntsville, AL 35806 - US Check us out at: www.digium.com & www.asterisk.org -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-dev mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-dev
