konowebcodecs/apps/browser/transcode.worker.html
2022-09-23 17:11:48 +08:00

49 lines
1.5 KiB
HTML

<html>
<head>
<style>
html, body {
margin: 0;
width: 100%;
height: 100%
}
body {
display: flex;
flex-direction: column;
align-items: center;
}
</style>
</head>
<body>
<h3>Upload a video to transcode to mp4 (x264) and play!</h3>
<video id="output-video" controls></video><br/>
<input type="file" id="uploader">
<p id="message"></p>
<script type="module">
const worker = new Worker(new URL('./transcode.worker.js', import.meta.url).href);
worker.onmessage = (event) => {
const {data} = event;
message.innerHTML = 'Complete transcoding';
const video = document.getElementById('output-video');
video.src = URL.createObjectURL(new Blob([data.buffer], { type: 'video/mp4' }));
}
worker.onerror = (error) => console.log(error);
const transcode = async ({ target: { files } }) => {
const message = document.getElementById('message');
const [file] = files;
let name = file.name.split('.');
const inType = name.pop();
name = name.join();
const buffer = await file.arrayBuffer();
const outType = 'mp4';
worker.postMessage({name, inType, outType, buffer}, [buffer]);
message.innerHTML = 'Start transcoding';
}
const elm = document.getElementById('uploader');
elm.addEventListener('change', transcode);
</script>
</body>
</html>