gecko-dev/dom/media/mediasource/test/test_MultipleInitSegments.html

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<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=windows-1252">
<title>MSE: Append buffer with multiple init segments</title>
<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<script type="text/javascript" src="mediasource.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<pre id="test">
<script class="testbody" type="text/javascript">
SimpleTest.waitForExplicitFinish();
runWithMSE(async (ms, v) => {
await once(ms, "sourceopen");
const sb = ms.addSourceBuffer("video/webm");
const seek_lowres = await fetchWithXHR("seek_lowres.webm");
const seek = await fetchWithXHR("seek.webm");
const data = [
[seek_lowres, 0, 438], // lowres init segment
[seek_lowres, 438, 25950], // lowres media segment 0-1
[seek, 0, 318], // init segment
[seek, 46712, 67833], // media segment 0.8-1.201
];
const length = data.map(d => d[2] - d[1]).reduce((a, b) => a + b, 0);
const arrayBuffer = new Uint8Array(length);
let pos = 0;
for (const d of data) {
const buffer = new Uint8Array(d[0], d[1], d[2] - d[1]);
arrayBuffer.set(buffer, pos);
pos += buffer.byteLength;
}
await loadSegment(sb, arrayBuffer);
// Since we are passing multiple segments in one buffer,
// the first durationchange event from parsing the init
// segment will be fired before updateend.
const p = once(v, "durationchange");
ms.endOfStream();
await p;
ok(v.duration, 1.201);
SimpleTest.finish();
});
</script>
</pre>
</body>
</html>