I am getting the error callback (with the error message "setremotedescription failed") on setting the remote description. But it doens't give any additional info, such as which sdp line actually caused problem.
Pls find the SDP below. The ? marks are the result of copy paste from chromium.
sdp: "v=0
?o=mrelay 652149149 2 IN IP4 10.87.134.53
?s=
?t=0 0
?a=group:BUNDLE audio video
?m=audio 9188 RTP/AVPF 0 126
?c=IN IP4 10.87.134.53
?a=candidate:1 1 UDP 1 10.87.134.53 9188 typ host
?a=candidate:1 2 UDP 1 10.87.134.53 9189 typ host
?a=fmtp:126 0-15
?a=ice-pwd:abc
?a=ice-ufrag:def
?a=mid:audio
?a=rtcp:9189 IN IP4 10.87.134.53
?a=rtcp-mux
?a=rtpmap:0 PCMU/8000
?a=rtpmap:126 telephone-event/8000
?a=ssrc:
2704329135 label:Sc9oXeZFLbzHRo2WAzv0XjEvZqtFoBIa42DG00
?a=ssrc:
2704329135 mslabel:Sc9oXeZFLbzHRo2WAzv0XjEvZqtFoBIa42DG
?m=video 9190 RTP/AVPF 126
?c=IN IP4 10.87.134.53
?a=candidate:1 1 UDP 1 10.87.134.53 9190 typ host
?a=candidate:1 2 UDP 1 10.87.134.53 9191 typ host
?a=fmtp:126 profile-level-id=42400a;max-mbps=108000;max-fs=3600;packetization-mode=0
?a=ice-pwd:abc
?a=ice-ufrag:def
?a=mid:video
?a=rtcp:9191 IN IP4 10.87.134.53
?a=rtcp-mux
?a=rtpmap:126 H264/90000
?a=ssrc:1878062286 cname:aA8onKILWaEn3Z40
?a=ssrc:1878062286 label:Sc9oXeZFLbzHRo2WAzv0XjEvZqtFoBIa42DG10
?a=ssrc:1878062286 mslabel:Sc9oXeZFLbzHRo2WAzv0XjEvZqtFoBIa42DG
?"