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index.html
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/
index.html
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<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>WebRtc test</title>
<script src="https://unpkg.com/vconsole@latest/dist/vconsole.min.js"></script>
<script>
const vConsole = new window.VConsole();
</script>
<style>
#container {
width: 100vw;
height: 100vh;
position: relative;
overflow: hidden;
}
</style>
</head>
<body>
<div id="container">
<button id="start"> start </button>
</div>
<script>
const container = document.querySelector('#container')
const start = document.querySelector('#start')
let video;
let mediaStream = null;
const disconnect = () => {
if (mediaStream) {
// 停止轨道
mediaStream.getTracks().forEach(track => track.stop());
mediaStream = null;
}
}
const reconnect = () => {
console.log('Attempting to reconnect...');
disconnect();
connect();
}
const createVideo = () => {
video = document.createElement('video');
video.setAttribute('autoplay', '');
video.setAttribute('muted', '');
video.setAttribute('playsinline', '');
video.style.position = 'absolute'
video.style.top = '0px'
video.style.left = '0px'
video.style.zIndex = '-2'
container.appendChild(video);
}
const connect = () => {
if (!navigator.mediaDevices || !navigator.mediaDevices.getUserMedia) {
return;
}
navigator.mediaDevices.getUserMedia({
audio: false, video: {
facingMode: 'environment',
}
}).then((stream) => {
video.addEventListener('loadedmetadata', () => {
video.setAttribute('width', video.videoWidth);
video.setAttribute('height', video.videoHeight);
});
mediaStream = stream;
mediaStream.getTracks().forEach(track => {
track.onended = () => {
console.log('MediaStreamTrack has ended');
reconnect();
};
});
video.srcObject = stream;
}).catch((err) => {
console.log("getUserMedia error", err);
});
}
const startVideo = () => {
if (!video) {
createVideo();
}
connect();
}
start.addEventListener('click', () => {
startVideo()
});
</script>
</body>
</html>