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test_LiveSeekable.html
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test_LiveSeekable.html
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<!DOCTYPE HTML>
<html>
<head>
<title>MSE: live seekable range</title>
<script 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");
// Load data with a +2 offset so that we can distinguish buffered range start
// and seekable range start.
sb.timestampOffset = 2;
const p = once(v, "loadedmetadata");
await fetchAndLoad(sb, "seek", [""], ".webm");
await p;
ms.duration = Infinity;
sb.abort();
is(sb.buffered.length, 1, "continuous buffered range");
is(sb.buffered.start(0), 2, "buffered range start at timestamp offset");
is(sb.buffered.end(0), 6.001, "buffered range end at original duration + timestamp offset");
is(v.seekable.length, 1, "continuous seekable range");
is(v.seekable.start(0), 0, "seekable range start at 0");
is(v.seekable.end(0), sb.buffered.end(0), "seekable range end at buffered end");
// LiveSeekableRange.start < buffered.start
ms.setLiveSeekableRange(1, 5);
is(v.seekable.length, 1, "continuous seekable range");
is(v.seekable.start(0), 1, "seekable range start at live range start");
is(v.seekable.end(0), sb.buffered.end(0), "seekable range end at buffered end");
ms.clearLiveSeekableRange();
is(v.seekable.length, 1, "continuous seekable range");
is(v.seekable.start(0), 0, "seekable range start at 0");
is(v.seekable.end(0), sb.buffered.end(0), "seekable range end at buffered end");
// LiveSeekableRange.end > buffered.end
ms.setLiveSeekableRange(1, 8);
is(v.seekable.start(0), 1, "seekable range start at live range start");
is(v.seekable.end(0), 8, "seekable range end at live range end");
// LiveSeekableRange.start > buffered.start
// LiveSeekableRange.end < buffered.end
ms.setLiveSeekableRange(3, 5);
is(v.seekable.start(0), sb.buffered.start(0), "seekable range start at buffered start");
is(v.seekable.end(0), sb.buffered.end(0), "seekable range end at live range end");
// LiveSeekableRange.start > buffered.end
ms.setLiveSeekableRange(8, 10);
is(v.seekable.start(0), sb.buffered.start(0), "seekable range start at buffered start");
is(v.seekable.end(0), 10, "seekable range end at live range end");
// LiveSeekableRange.end < buffered.start
ms.setLiveSeekableRange(0, 2);
is(v.seekable.start(0), 0, "seekable range start at live range start");
is(v.seekable.end(0), sb.buffered.end(0), "seekable range end at buffered end");
must_throw(() => ms.setLiveSeekableRange(2, 0),
"must thow if start > end",
"TypeError");
SimpleTest.finish();
});
</script>
</pre>
</body>
</html>