webrtc_c.js

  const configuration = getSelectedSdpSemantics();
  console.log('RTCPeerConnection configuration:', configuration);
  pc1 = new RTCPeerConnection(configuration);
  console.log('Created local peer connection object pc1');
  pc1.addEventListener('icecandidate', e => onIceCandidate(pc1, e));
  pc2 = new RTCPeerConnection(configuration);
  console.log('Created remote peer connection object pc2');
  pc2.addEventListener('icecandidate', e => onIceCandidate(pc2, e));
  pc1.addEventListener('iceconnectionstatechange', e => onIceStateChange(pc1, e));
  pc2.addEventListener('iceconnectionstatechange', e => onIceStateChange(pc2, e));
  pc2.addEventListener('track', gotRemoteStream);
  pc1.addEventListener('track', gotRemoteStream);
  localStream.getTracks().forEach(track => {pc1.addTrack(track, localStream);pc2.addTrack(track, localStream);});
  console.log('Added local stream to pc1');