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demo.html
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demo.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
</head>
<body>
<div>
<video controls></video>
</div>
<div>
<input id="fileItem" type="file" multiple>
</div>
<script>
document.querySelector("#fileItem").onchange = upload;
let video = document.querySelector('video');
function upload() {
let files = document.querySelector('#fileItem').files;
let mediaSource
if ('MediaSource' in window) {
mediaSource = new MediaSource;
video.src = URL.createObjectURL(mediaSource);
} else {
console.error('unsupport MediaSource');
}
for (let i = 0; i < files.length; i++) {
const mimeCodec = files[i].type
const freader = new FileReader()
freader.readAsArrayBuffer(files[i])
freader.addEventListener("loadend", () => {
if (freader.readyState !== 2) {
console.log("wrond readState")
return;
}
feedSource(mediaSource, freader.result, mimeCodec, i, files.length);
})
}
}
function feedSource(ms, buf, mimeCodec, i, totalLen) {
if (!MediaSource.isTypeSupported(mimeCodec)) {
console.error('unsupport mimeCodec: ' + mimeCodec)
}
let sourceBuffer = ms.addSourceBuffer(mimeCodec);
sourceBuffer.addEventListener('updateend', function () {
if (i === totalLen - 1) {
ms.endOfStream();
}
});
sourceBuffer.appendBuffer(buf);
};
</script>
</body>
</html>