Running under latest Aurora (26 a2) I provide an offer containing rtcp-mux and a single candidate.
The answer that FF generates also contains rtcp-mux and completes the handshake, however, it also contains separate candidates for rtp and rtcp as you can see in the following answer candidates: a=candidate:0 1 UDP 2130182399 192.168.4.100 55249 typ host a=candidate:0 2 UDP 2130182398 192.168.4.100 61662 typ host So, why is FF still generating separate rtcp candidates even though rtcp-mux is negotiated? Thanks offer: v=0 o=- 1 2 IN IP4 0.0.0.0 s=- t=0 0 a=ice-ufrag:w/HHF2TlNbGZREl a=ice-pwd:efgUgfL1Q9B8d1+k6n5UnUj9 a=fingerprint:sha-256 28:AB:43:F1:A5:C3:98:9D:44:39:4E:DF:4A:04:E8:39:42:22:E8:E4:9D:35:D4:70:7F:87:77:B0:75:D8:88:AB m=audio 1 RTP/SAVPF 111 c=IN IP4 0.0.0.0 a=rtcp:1 a=rtcp-mux a=sendrecv a=candidate:0 1 udp 2130714367 192.168.4.101 6028 typ host a=rtpmap:111 opus/48000/2 a=fmtp:111 PROFILE=0;LEVEL=0;packetization-mode=0;level-asymmetry-allowed=1;parameter-add=1;maxaveragebitrate=18000;usedtx=0;stereo=0;useinbandfec=0;cbr=0 answer: v=0 o=Mozilla-SIPUA-26.0a2 19140 0 IN IP4 0.0.0.0 s=SIP Call t=0 0 a=ice-ufrag:ef806e02 a=ice-pwd:9d292b008cddbca8c38f2b3ca2f6c2f0 a=fingerprint:sha-256 64:9C:D6:C1:C8:7C:BD:C9:C5:9F:D5:26:13:30:55:4B:24:10:48:F5:06:B6:8A:BC:1A:FC:F1:74:65:98:48:F4 m=audio 55249 RTP/SAVPF 111 c=IN IP4 (redacted) a=rtpmap:111 opus/48000/2 a=ptime:20 a=sendrecv a=setup:active a=candidate:0 1 UDP 2130182399 192.168.4.100 55249 typ host a=candidate:1 1 UDP 1694040063 173.160.212.118 55249 typ srflx raddr 192.168.4.100 rport 55249 a=candidate:2 1 UDP 2128609535 10.211.55.2 63245 typ host a=candidate:4 1 UDP 2128543999 10.37.129.2 59790 typ host a=candidate:0 2 UDP 2130182398 192.168.4.100 61662 typ host a=candidate:1 2 UDP 1694040062 173.160.212.118 61662 typ srflx raddr 192.168.4.100 rport 61662 a=candidate:2 2 UDP 2128609534 10.211.55.2 52190 typ host a=candidate:4 2 UDP 2128543998 10.37.129.2 61460 typ host a=rtcp-mux _______________________________________________ dev-media mailing list [email protected] https://lists.mozilla.org/listinfo/dev-media

