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microsoft / MixedReality-WebRTC

MixedReality-WebRTC is a collection of components to help mixed reality app developers integrate audio and video real-time communication into their application and improve their collaborative experience
https://microsoft.github.io/MixedReality-WebRTC/
MIT License
913 stars 283 forks source link

answer always a=recvonly #776

Open fallingrust opened 3 years ago

fallingrust commented 3 years ago

I call CreateAnswer() after SetRemoteDescriptionAsync(),but my answer SDP always a=recvonly,even I set Transceiver.Direction.SendReceive; So if I want make a videoCall ,i should create two peerconnection for each side?

offer sdp: v=0 o=- 9080206870595600830 2 IN IP4 127.0.0.1 s=- t=0 0 a=group:BUNDLE 0 a=msid-semantic: WMS video1 m=video 9 UDP/TLS/RTP/SAVPF 96 97 98 99 100 101 127 124 125 c=IN IP4 0.0.0.0 a=rtcp:9 IN IP4 0.0.0.0 a=ice-ufrag:KH2h a=ice-pwd:0w5iJgUpEGYIcOXmfr5u4qLV a=ice-options:trickle a=fingerprint:sha-256 A3:CB:CA:B0:24:34:4A:1A:E2:7A:96:5D:26:84:A5:81:C8:5B:E3:C8:71:A6:25:E9:11:34:56:E4:7F:EC:F6:A6 a=setup:actpass a=mid:0 a=extmap:2 urn:ietf:params:rtp-hdrext:toffset a=extmap:3 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time a=extmap:4 urn:3gpp:video-orientation a=extmap:5 http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01 a=extmap:6 http://www.webrtc.org/experiments/rtp-hdrext/playout-delay a=extmap:7 http://www.webrtc.org/experiments/rtp-hdrext/video-content-type a=extmap:8 http://www.webrtc.org/experiments/rtp-hdrext/video-timing a=extmap:10 http://tools.ietf.org/html/draft-ietf-avtext-framemarking-07 a=extmap:9 urn:ietf:params:rtp-hdrext:sdes:mid a=sendrecv a=msid:video1 703d4d4c-8704-4702-840c-7aba196b0318 a=rtcp-mux a=rtcp-rsize a=rtpmap:96 VP8/90000 a=rtcp-fb:96 goog-remb a=rtcp-fb:96 transport-cc a=rtcp-fb:96 ccm fir a=rtcp-fb:96 nack a=rtcp-fb:96 nack pli a=rtpmap:97 rtx/90000 a=fmtp:97 apt=96 a=rtpmap:98 VP9/90000 a=rtcp-fb:98 goog-remb a=rtcp-fb:98 transport-cc a=rtcp-fb:98 ccm fir a=rtcp-fb:98 nack a=rtcp-fb:98 nack pli a=fmtp:98 x-google-profile-id=0 a=rtpmap:99 rtx/90000 a=fmtp:99 apt=98 a=rtpmap:100 multiplex/90000 a=rtcp-fb:100 goog-remb a=rtcp-fb:100 transport-cc a=rtcp-fb:100 ccm fir a=rtcp-fb:100 nack a=rtcp-fb:100 nack pli a=fmtp:100 acn=VP9;x-google-profile-id=0 a=rtpmap:101 rtx/90000 a=fmtp:101 apt=100 a=rtpmap:127 red/90000 a=rtpmap:124 rtx/90000 a=fmtp:124 apt=127 a=rtpmap:125 ulpfec/90000 a=ssrc-group:FID 2599355079 3350832190 a=ssrc:2599355079 cname:Of7hruHwgUV+1tvo a=ssrc:2599355079 msid:video1 703d4d4c-8704-4702-840c-7aba196b0318 a=ssrc:2599355079 mslabel:video1 a=ssrc:2599355079 label:703d4d4c-8704-4702-840c-7aba196b0318 a=ssrc:3350832190 cname:Of7hruHwgUV+1tvo a=ssrc:3350832190 msid:video1 703d4d4c-8704-4702-840c-7aba196b0318 a=ssrc:3350832190 mslabel:video1 a=ssrc:3350832190 label:703d4d4c-8704-4702-840c-7aba196b0318

anser sdp: v=0 o=- 8130015999155797231 2 IN IP4 127.0.0.1 s=- t=0 0 a=group:BUNDLE 0 a=msid-semantic: WMS m=video 9 UDP/TLS/RTP/SAVPF 96 97 98 99 100 101 127 124 125 c=IN IP4 0.0.0.0 a=rtcp:9 IN IP4 0.0.0.0 a=ice-ufrag:1Dc1 a=ice-pwd:1+Fp+XXNQuTIg/lApBIVGz20 a=ice-options:trickle a=fingerprint:sha-256 74:80:08:E9:6D:39:09:EC:8B:7F:00:36:EE:2A:5B:C5:D1:FF:F0:0C:BE:B9:21:2E:EE:A5:5D:6B:2A:5E:35:55 a=setup:active a=mid:0 a=extmap:2 urn:ietf:params:rtp-hdrext:toffset a=extmap:3 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time a=extmap:4 urn:3gpp:video-orientation a=extmap:5 http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01 a=extmap:6 http://www.webrtc.org/experiments/rtp-hdrext/playout-delay a=extmap:7 http://www.webrtc.org/experiments/rtp-hdrext/video-content-type a=extmap:8 http://www.webrtc.org/experiments/rtp-hdrext/video-timing a=extmap:10 http://tools.ietf.org/html/draft-ietf-avtext-framemarking-07 a=extmap:9 urn:ietf:params:rtp-hdrext:sdes:mid a=recvonly a=rtcp-mux a=rtcp-rsize a=rtpmap:96 VP8/90000 a=rtcp-fb:96 goog-remb a=rtcp-fb:96 transport-cc a=rtcp-fb:96 ccm fir a=rtcp-fb:96 nack a=rtcp-fb:96 nack pli a=rtpmap:97 rtx/90000 a=fmtp:97 apt=96 a=rtpmap:98 VP9/90000 a=rtcp-fb:98 goog-remb a=rtcp-fb:98 transport-cc a=rtcp-fb:98 ccm fir a=rtcp-fb:98 nack a=rtcp-fb:98 nack pli a=fmtp:98 x-google-profile-id=0 a=rtpmap:99 rtx/90000 a=fmtp:99 apt=98 a=rtpmap:100 multiplex/90000 a=rtcp-fb:100 goog-remb a=rtcp-fb:100 transport-cc a=rtcp-fb:100 ccm fir a=rtcp-fb:100 nack a=rtcp-fb:100 nack pli a=fmtp:100 acn=VP9;x-google-profile-id=0 a=rtpmap:101 rtx/90000 a=fmtp:101 apt=100 a=rtpmap:127 red/90000 a=rtpmap:124 rtx/90000 a=fmtp:124 apt=127 a=rtpmap:125 ulpfec/90000

fallingrust commented 3 years ago

if I use v1.0.3 lib offer and answer work well