如何使用simple-peer添加和删除视频曲目

<script src="https://cdn.jsdelivr.net/npm/simple-peer@latest"></script>

<video id="localVideo" autoplay></video>
<video id="remoteVideo" autoplay></video>

const peer = new SimplePeer({
  initiator: true, // 设置为true表示作为信令的发起方
  stream: localStream, // 本地视频流
});

navigator.mediaDevices.getUserMedia({ video: true, audio: true })
  .then(stream => {
    localStream = stream;
    document.getElementById('localVideo').srcObject = stream;
    peer.addStream(stream);
  })
  .catch(error => {
    console.error('Error accessing media devices.', error);
  });

peer.on('signal', data => {
  // 将data发送给对方
});

// 假设通过某种方式接收到了对方的信令数据，并存储在receivedSignal变量中
peer.signal(receivedSignal);

peer.on('stream', stream => {
  document.getElementById('remoteVideo').srcObject = stream;
});

const videoTracks = localStream.getVideoTracks();
videoTracks[0].stop();