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

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<!DOCTYPE HTML>
<html>
<head>
<title>MSE: check that duration change behaves properly</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(function (ms, v) {
ms.addEventListener("sourceopen", function () {
var sb = ms.addSourceBuffer("video/webm");
fetchWithXHR("seek.webm", function (arrayBuffer) {
sb.appendBuffer(new Uint8Array(arrayBuffer, 0, 318));
once(v, "loadedmetadata")
.then(function() {
is(v.duration, ms.duration, "video duration is mediasource one");
try {
ms.duration = 0;
} catch (e) { ok(false, "must not throw as operation is valid"); }
is(v.duration, 0, "reducing duration with no data buffered is valid");
sb.appendBuffer(new Uint8Array(arrayBuffer, 318));
// Adding more data will fire durationchange.
once(sb, "updateend")
.then(function() {
ok(true, "got updateend");
// XXX: Duration should be exactly 4.0, see bug 1065207.
ok(Math.abs(v.duration - 4) <= 0.002, "Video has correct duration");
var error = false;
try {
ms.duration = 0;
} catch (e) {
ok(true, "must use remove for range removal");
is(e.name, "InvalidStateError", "Error is InvalidStateError");
error = true;
}
ok(error, "got an error");
ok(Math.abs(v.duration - 4) <= 0.002, "Video has correct duration");
try {
ms.duration = 10;
} catch (e) { ok(false, "must not throw as setting duration past data is valid"); }
is(v.duration, 10, "extending duration is always valid");
// The last sample has a start time of 3.967000s and a end time of 4.001 (see bug 1065207).
try {
ms.duration = 3.967000;
} catch (e) { ok(false, "setting duration with >= highest frame presentation time is valid"); }
is(v.duration, sb.buffered.end(0), "duration is the highest end time reported by the buffered attribute ");
try {
ms.duration = 3.97;
} catch (e) { ok(false, "setting duration with >= highest frame presentation time is valid"); }
is(v.duration, sb.buffered.end(0), "duration is the highest end time reported by the buffered attribute ");
error = false;
try {
ms.duration = 3.96;
} catch (e) {
ok(true, "setting duration with < highest frame presentation time is not valid");
is(e.name, "InvalidStateError", "Error is InvalidStateError");
error = true;
}
ok(error, "got an error");
is(v.duration, sb.buffered.end(0), "duration is the highest end time reported by the buffered attribute ");
error = false;
try {
ms.duration = -1;
} catch (e) {
ok(true, "can't set a negative duration");
is(e.name, "TypeError", "Error is TypeError");
error = true;
}
ok(error, "got an error");
sb.remove(sb.buffered.end(0), Infinity);
is(sb.updating, true, "updating is true")
error = false;
try {
ms.duration = Infinity;
} catch (e) {
ok(true, "setting the duration while updating is not allowed");
is(e.name, "InvalidStateError", "Error is InvalidStateError");
error = true;
}
ok(error, "got an error");
error = false;
try {
sb.abort();
} catch (e) {
ok(true, "Can't use abort while range removal is in progress");
is(e.name, "InvalidStateError", "Error is InvalidStateError");
error = true;
}
ok(error, "got an error");
is(v.duration, sb.buffered.end(0), "duration is the highest end time reported by the buffered attribute ");
once(sb, "updateend", () => ms.endOfStream());
});
});
});
});
ms.addEventListener("sourceended", function () {
SimpleTest.finish();
});
});
</script>
</pre>
</body>
</html>