GStreamer based webkit2gtk fails with `Incoming unhandled RTCP ssrc(...), on_track will not be fired` about webrtc

[rainliu]

Do you have code example? Peer connection should add track or transceiver before setRemoteDescription.

[tfoldi]

I have the same issue. I put together a client code where I can reproduce the issue, however, I do not access the server side.

the log and program are here:

https://gist.github.com/tfoldi/270ddfdf919bf035cd96652d4bb03622

(I found what my issue was. Even if answer offered video stream, it required some authentication on the data channel before it actually opened the connection)

[rainliu]

Just one unhandled RTCP doesn't mean an issue. Most likely remote accepted offer SDP, after sent back answer SDP, then immediately start to send RTCP packets before local receives answer SDP and setRemoteDescription.

webrtc/src/peer_connection/peer_connection_internal.rs:322 [WARN] 20:15:25.873716 - Incoming unhandled RTCP ssrc(305150496), on_track will not be fired