konowebcodecs/examples/browser/concatDemux.html
2019-12-05 16:11:15 +05:30

54 lines
1.6 KiB
HTML

<html>
<head>
<script src="/dist/ffmpeg.dev.js"></script>
<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 File</h3>
<video id="output-video" controls></video><br />
<input type="file" id="uploader" />
<p id="message"></p>
<script>
const { createWorker } = FFmpeg;
const worker = createWorker({
corePath: "../../node_modules/@ffmpeg/core/ffmpeg-core.js",
logger: ({ message }) => console.log(message)
});
const transcode = async ({ target: { files } }) => {
const message = document.getElementById("message");
const { name } = files[0];
message.innerHTML = "Loading ffmpeg-core.js";
await worker.load();
message.innerHTML = "Start Concating";
await worker.write(name, files[0]);
const textFileName = "list.txt";
await worker.writeText(textFileName, `file ${name}\nfile ${name}`);
await worker.concatDemux(textFileName, "output.mp4");
message.innerHTML = "Complete Concating";
const { data } = await worker.read("output.mp4");
const video = document.getElementById("output-video");
video.src = URL.createObjectURL(
new Blob([data.buffer], { type: "video/mp4" })
);
};
const elm = document.getElementById("uploader");
elm.addEventListener("change", transcode);
</script>
</body>
</html>