зеркало из https://github.com/mozilla/gecko-dev.git
74 строки
2.8 KiB
HTML
74 строки
2.8 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<title>MSE: data gap detection</title>
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<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
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<script type="text/javascript" src="mediasource.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
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</head>
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<body>
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<pre id="test">
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<script class="testbody" type="text/javascript">
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SimpleTest.waitForExplicitFinish();
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runWithMSE(async (ms, el) => {
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const threshold = 0.5; // gap threshold in seconds.
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const fuzz = 0.000001; // fuzz when comparing double.
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await once(ms, "sourceopen");
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ok(true, "Receive a sourceopen event");
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const videosb = ms.addSourceBuffer("video/mp4");
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const vchunks = [{start: 0, end: 3.203333}, { start: 3.203333, end: 6.406666}];
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await fetchAndLoad(videosb, "bipbop/bipbop_video", ["init"], ".mp4");
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await fetchAndLoad(videosb, "bipbop/bipbop_video", range(1, 5), ".m4s");
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// We will insert a gap of threshold
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videosb.timestampOffset = threshold;
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await fetchAndLoad(videosb, "bipbop/bipbop_video", range(5, 9), ".m4s");
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// HTMLMediaElement fires 'waiting' if somebody invokes |play()| before the MDSM
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// has notified it of available data. Make sure that we get 'playing' before
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// we starting waiting for 'waiting'.
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info("Invoking play()");
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let p = once(el, "playing");
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el.play();
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await p;
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await once(el, "waiting");
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// We're waiting for data after the start of the last frame.
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// 0.033333 is the duration of the last frame.
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ok((el.currentTime >= vchunks[1].end - 0.033333 + threshold - fuzz &&
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el.currentTime <= vchunks[1].end + threshold + fuzz),
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`skipped the gap properly: ${el.currentTime} ${vchunks[1].end + threshold}`);
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is(el.buffered.length, 2, "buffered range has right length");
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// Now we test that seeking will succeed despite the gap.
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el.currentTime = el.buffered.end(0) + (threshold / 2);
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await once(el, "seeked");
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// Now we test that we don't pass the gap.
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// Clean up our sourcebuffer by removing all data.
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videosb.timestampOffset = 0;
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videosb.remove(0, Infinity);
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el.currentTime = 0;
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el.pause();
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await once(videosb, "updateend");
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await fetchAndLoad(videosb, "bipbop/bipbop_video", range(1, 5), ".m4s");
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// We will insert a gap of threshold + 1ms
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videosb.timestampOffset = threshold + 1 / 1000;
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await fetchAndLoad(videosb, "bipbop/bipbop_video", range(5, 9), ".m4s");
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info("Invoking play()");
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p = once(el, "playing");
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el.play();
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await p;
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await once(el, "waiting");
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// We're waiting for data after the start of the last frame.
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// 0.033333 is the duration of the last frame.
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ok((el.currentTime >= vchunks[0].end - 0.033333 - fuzz &&
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el.currentTime <= vchunks[0].end + fuzz),
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`stopped at the gap properly: ${el.currentTime} ${vchunks[0].end}`);
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SimpleTest.finish();
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});
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</script>
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</pre>
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</body>
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</html>
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