建立專案
建立專案。
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| npm create vite@latest
cd webrtc-example
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安裝 ESLint 套件。
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| npm i eslint eslint-config-airbnb -D
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在專案根目錄新增 .eslintrc.cjs 檔：
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| module.exports = {
extends: 'airbnb',
env: {
browser: true,
node: true,
},
rules: {
'no-new': 'off',
},
};
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實作
修改 main.js 檔。
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| import './style.css';
class Meeting {
constructor() {
this.streamButton = document.querySelector('#stream-button');
this.videoButton = document.querySelector('#video-button');
this.audioButton = document.querySelector('#audio-button');
this.mainVideo = document.querySelector('#main-video');
this.isVideoEnabled = true;
this.isAudioEnabled = true;
this.videoTracks = [];
this.audioTracks = [];
this.streamButton.addEventListener('click', this.toggleStream.bind(this));
this.videoButton.addEventListener('click', this.toggleVideo.bind(this));
this.audioButton.addEventListener('click', this.toggleAudio.bind(this));
}
async toggleStream() {
let stream = this.mainVideo.srcObject;
this.streamButton.textContent = stream ? '開始' : '結束';
if (stream) {
stream.getTracks().forEach((track) => track.stop());
this.mainVideo.srcObject = null;
return;
}
stream = await navigator.mediaDevices.getUserMedia({
audio: true,
video: { width: { ideal: 4096 }, height: { ideal: 2160 } },
});
this.videoTracks = stream.getVideoTracks();
this.audioTracks = stream.getAudioTracks();
this.videoTracks[0].enabled = this.isVideoEnabled;
this.audioTracks[0].enabled = this.isAudioEnabled;
this.mainVideo.srcObject = stream;
}
toggleVideo() {
this.isVideoEnabled = !this.isVideoEnabled;
this.videoButton.textContent = this.isVideoEnabled ? '關閉視訊' : '開啟視訊';
if (this.videoTracks.length > 0) {
this.videoTracks[0].enabled = this.isVideoEnabled;
}
}
toggleAudio() {
this.isAudioEnabled = !this.isAudioEnabled;
this.audioButton.textContent = this.isAudioEnabled ? '關閉音訊' : '開啟音訊';
if (this.audioTracks.length > 0) {
this.audioTracks[0].enabled = this.isAudioEnabled;
}
}
}
new Meeting();
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修改 index.html 檔。
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| <!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<link rel="icon" type="image/svg+xml" href="/vite.svg" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Vite App</title>
</head>
<body>
<div id="app">
<button id="stream-button">開始</button>
<button id="video-button">關閉視訊</button>
<button id="audio-button">關閉音訊</button>
<video id="main-video" width="100%" height="100%" autoplay playsinline></video>
</div>
<script type="module" src="/main.js"></script>
</body>
</html>
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修改 style.css 檔。
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| :root {
background-color: #242424;
}
body {
margin: 0;
}
#video {
transform: scaleX(-1);
}
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程式碼
參考資料