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javascript - 我想使用纯 javaScript 通过 webRTC 进行点对点视频聊天

转载 作者：行者123 更新时间：2023-11-28 03:15:04 25 4
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我是 webRTC 新手，我编写了一个视频聊天代码，它已成功执行，我不想使用scaledrone。我想使用纯 JavasCript。我该怎么做，请帮助我

html 和 CSS

<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <style>
    body {
      display: flex;
      height: 100vh;
      margin: 0;
      align-items: center;
      justify-content: center;
      padding: 0 50px;
      font-family: -apple-system, BlinkMacSystemFont, sans-serif;
    }
    video {
      max-width: calc(50% - 100px);
      margin: 0 50px;
      box-sizing: border-box;
      border-radius: 2px;
      padding: 0;
      box-shadow: rgba(156, 172, 172, 0.2) 0px 2px 2px, rgba(156, 172, 172, 0.2) 0px 4px 4px, rgba(156, 172, 172, 0.2) 0px 8px 8px, rgba(156, 172, 172, 0.2) 0px 16px 16px, rgba(156, 172, 172, 0.2) 0px 32px 32px, rgba(156, 172, 172, 0.2) 0px 64px 64px;
    }
    .copy {
      position: fixed;
      top: 10px;
      left: 50%;
      transform: translateX(-50%);
      font-size: 16px;
      color: rgba(0, 0, 0, 0.5);
    }
  </style>
</head>
<body>
  <div class="copy">Send your URL to a friend to start a video call</div>
  <video id="localVideo" autoplay muted></video>
  <video id="remoteVideo" autoplay></video>
</body>
</html>

scaledrone 脚本

  <script type='text/javascript' src='https://cdn.scaledrone.com/scaledrone.min.js'></script>

主要js

 <script>

      // Generate random room name if needed
if (!location.hash) {
  location.hash = Math.floor(Math.random() * 0xFFFFFF).toString(16);
}
const roomHash = location.hash.substring(1);

// TODO: Replace with your own channel ID
const drone = new ScaleDrone('yiS12Ts5RdNhebyM');
// Room name needs to be prefixed with 'observable-'
const roomName = 'observable-' + roomHash;
const configuration = {
  iceServers: [{
    urls: 'stun:stun.l.google.com:19302'
  }]
};
let room;
let pc;


function onSuccess() {};
function onError(error) {
  console.error(error);
};

drone.on('open', error => {
  if (error) {
    return console.error(error);
  }
  room = drone.subscribe(roomName);
  room.on('open', error => {
    if (error) {
      onError(error);
    }
  });
  // We're connected to the room and received an array of 'members'
  // connected to the room (including us). Signaling server is ready.
  room.on('members', members => {
    console.log('MEMBERS', members);
    // If we are the second user to connect to the room we will be creating the offer
    const isOfferer = members.length === 2;
    startWebRTC(isOfferer);
  });
});

// Send signaling data via Scaledrone
function sendMessage(message) {
  drone.publish({
    room: roomName,
    message
  });
}

function startWebRTC(isOfferer) {
  pc = new RTCPeerConnection(configuration);

  // 'onicecandidate' notifies us whenever an ICE agent needs to deliver a
  // message to the other peer through the signaling server
  pc.onicecandidate = event => {
    if (event.candidate) {
      sendMessage({'candidate': event.candidate});
    }
  };

  // If user is offerer let the 'negotiationneeded' event create the offer
  if (isOfferer) {
    pc.onnegotiationneeded = () => {
      pc.createOffer().then(localDescCreated).catch(onError);
    }
  }

  // When a remote stream arrives display it in the #remoteVideo element
  pc.ontrack = event => {
    const stream = event.streams[0];
    if (!remoteVideo.srcObject || remoteVideo.srcObject.id !== stream.id) {
      remoteVideo.srcObject = stream;
    }
  };

  navigator.mediaDevices.getUserMedia({
    audio: true,
    video: true,
  }).then(stream => {
    // Display your local video in #localVideo element
    localVideo.srcObject = stream;
    // Add your stream to be sent to the conneting peer
    stream.getTracks().forEach(track => pc.addTrack(track, stream));
  }, onError);

  // Listen to signaling data from Scaledrone
  room.on('data', (message, client) => {
    // Message was sent by us
    if (client.id === drone.clientId) {
      return;
    }

    if (message.sdp) {
      // This is called after receiving an offer or answer from another peer
      pc.setRemoteDescription(new RTCSessionDescription(message.sdp), () => {
        // When receiving an offer lets answer it
        if (pc.remoteDescription.type === 'offer') {
          pc.createAnswer().then(localDescCreated).catch(onError);
        }
      }, onError);
    } else if (message.candidate) {
      // Add the new ICE candidate to our connections remote description
      pc.addIceCandidate(
        new RTCIceCandidate(message.candidate), onSuccess, onError
      );
    }
  });
}

function localDescCreated(desc) {
  pc.setLocalDescription(
    desc,
    () => sendMessage({'sdp': pc.localDescription}),
    onError
  );
}

    </script>

请帮我看看如何使用纯js而不使用scaledrone来设置p2p连接。请帮帮我。提前致谢

最佳答案

关于javascript - 我想使用纯 javaScript 通过 webRTC 进行点对点视频聊天，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/59713933/

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