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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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Roy Tam 2018-01-19 03:59:58 +08:00
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dom/media/mediasource/test/test_TruncatedDuration_mp4.html Normal file
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<!DOCTYPE HTML>
<html>
<head>
<title>MSE: truncating the media seeks to end of media and update buffered range</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">
// This test append data to a mediasource and then seek to half the duration
// of the video.
// We then shorten the video to 1/3rd of its original size.
// We ensure that the buffered range immediately reflect the truncation
// and that we've seeked to the new end of the media as per W3C spec and
// video.currentTime got updated.
SimpleTest.waitForExplicitFinish();
function round(n) {
return Math.round(n * 1000) / 1000;
}
function do_seeking(e) {
var v = e.target;
v.removeEventListener("seeking", do_seeking, false);
SimpleTest.finish();
}
function do_seeked(e) {
var v = e.target;
v.removeEventListener("seeked", do_seeked, false);
var duration = round(v.duration / 3);
is(v._sb.updating, false, "sourcebuffer isn't updating");
v._sb.remove(duration, Infinity);
once(v._sb, "updateend", function() {
v._ms.duration = duration
// frames aren't truncated, so duration may be slightly more.
isfuzzy(v.duration, duration, 1/30, "element duration was updated");
v._sb.abort(); // this shouldn't abort updating the duration (bug 1130826).
ok(v.seeking, "seeking is true");
// test playback position was updated (bug 1130839).
is(v.currentTime, v.duration, "current time was updated");
is(v._sb.buffered.length, 1, "One buffered range");
// Truncated mediasource duration will cause the video element to seek.
v.addEventListener("seeking", do_seeking, false);
});
}
function do_loaded(e) {
var v = e.target;
v.removeEventListener("loadeddata", do_loaded, false);
// mp4 metadata states 10s when we only have 1.6s worth of video.
v._sb.remove(v._sb.buffered.end(0), Infinity);
once(v._sb, "updateend", function() {
v._ms.duration = v._sb.buffered.end(0);
is(v.duration, v._ms.duration, "current time updated with mediasource duration");
v.currentTime = v.duration / 2;
is(v.currentTime, v.duration / 2, "current time was updated");
ok(v.seeking, "seeking is true");
v.addEventListener("seeked", do_seeked, false);
});
}
runWithMSE(function (ms, v) {
ms.addEventListener("sourceopen", function () {
var sb = ms.addSourceBuffer("video/mp4");
v._sb = sb;
v._ms = ms;
fetchWithXHR("bipbop/bipbop2s.mp4", function (arrayBuffer) {
sb.appendBuffer(new Uint8Array(arrayBuffer));
v.addEventListener("loadeddata", do_loaded, false);
});
});
});
</script>
</pre>
</body>
</html>