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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
commit dcd9973243
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dom/media/test/test_VideoPlaybackQuality.html Normal file
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<!DOCTYPE HTML>
<html>
<head>
<title>Test basic functionality of VideoPlaybackQuality</title>
<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.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();
function test() {
var video = document.createElement("video");
ok(video.getVideoPlaybackQuality, "getVideoPlaybackQuality should be exposed with pref set");
var vpq = video.getVideoPlaybackQuality();
ok(vpq, "getVideoPlaybackQuality should return an object");
ok(vpq.creationTime <= performance.now(), "creationTime should be in the past");
is(vpq.totalVideoFrames, 0, "totalVideoFrames should be 0");
is(vpq.droppedVideoFrames, 0, "droppedVideoFrames should be 0");
is(vpq.corruptedVideoFrames, 0, "corruptedVideoFrames should be 0");
var vpq2 = video.getVideoPlaybackQuality();
ok(vpq !== vpq2, "getVideoPlaybackQuality should return a new object");
ok(vpq.creationTime <= vpq2.creationTime, "VideoPlaybackQuality objects should have increasing creationTime");
var audio = document.createElement("audio");
ok(!audio.getVideoPlaybackQuality, "getVideoPlaybackQuality should not be available on Audio elements");
video.src = "seek.webm";
video.play();
video.addEventListener("ended", function () {
vpq = video.getVideoPlaybackQuality();
ok(vpq.creationTime <= performance.now(), "creationTime should be in the past");
ok(vpq.totalVideoFrames > 0, "totalVideoFrames should be > 0");
ok(vpq.droppedVideoFrames >= 0, "droppedVideoFrames should be >= 0");
ok(vpq.droppedVideoFrames <= vpq.totalVideoFrames, "droppedVideoFrames should be <= totalVideoFrames");
ok(vpq.corruptedVideoFrames >= 0, "corruptedVideoFrames should be >= 0");
SpecialPowers.pushPrefEnv({"set": [["media.video_stats.enabled", false]]}, function () {
vpq = video.getVideoPlaybackQuality();
is(vpq.creationTime, 0, "creationTime should be 0");
is(vpq.totalVideoFrames, 0, "totalVideoFrames should be 0");
is(vpq.droppedVideoFrames, 0, "droppedVideoFrames should be 0");
is(vpq.corruptedVideoFrames, 0, "corruptedVideoFrames should be 0");
SimpleTest.finish();
});
});
}
addLoadEvent(function() {
SpecialPowers.pushPrefEnv({"set":
[
["media.mediasource.enabled", true],
]
}, test);
});
</script>
</pre>
</body>
</html>