RTCPeerConnection事件未触发

Question

我不能让RTCPeerConnection工作。在我创建了一个RTCPeerConnection对象之后，什么也没有发生。事件不会被激发。这是创建连接的方法：

createPeerConnection() {
    console.log('new RtCPeerConnection with stun server.');
    this.myPeerConnection = new RTCPeerConnection({stunServer}]
    });

    console.log('PeerConnection is ', this.myPeerConnection);

    this.myPeerConnection.onicecandidate = this.handleICECandidateEvent;
    this.myPeerConnection.ontrack = this.handleAddTrackEvent;
    this.myPeerConnection.removeTrack = this.handleRemoveStreamEvent;
    this.myPeerConnection.oniceconnectionstatechange = this.handleICEConnectionStateChangeEvent;
    // this.myPeerConnection.onicegatheringstatechange = this.handleICEGatheringStateChangeEvent;
    // this.myPeerConnection.onsignalingstatechange = this.handleSignalingStateChangeEvent;
    this.myPeerConnection.onnegotiationneeded = this.handleNegotiationNeededEvent;
  }

我在控制台中没有错误。什么都没发生。当用户单击另一个用户进行连接时，将调用此方法：

connect() {
    console.log('Creating RTCPeerConnetion...');
    this.createPeerConnection();
    console.log('RTCPeerConnection created');
    console.log('Creating new local stream ...');
    navigator.mediaDevices.getUserMedia({ video: true, audio: true }).then((localStream) => {
      this.localVideo.nativeElement.srcObject = localStream;
      console.log('Local stream created', localStream);
    }).catch(this.handleGetUserMediaError);
  }

我使用了火狐和Angular2，并在本地主机上进行了测试。不知道这是不是原因。有什么想法吗？

Answer 1

我只是忘了像这样给peerConnection添加蒸汽：

navigator.mediaDevices.getUserMedia({ video: true, audio: true }).then((localStream) => {
      this.localVideo.nativeElement.srcObject = localStream;
      console.log('Local stream created', localStream);
      localStream.getTracks().forEach(track =>
        this.myPeerConnection.addTrack(track, localStream)
      );