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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_streams_element_capture_createObjectURL.html Normal file
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<!DOCTYPE HTML>
<html>
<head>
<title>Test that a MediaStream captured from one element plays back in another</title>
<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
<script type="text/javascript" src="manifest.js"></script>
</head>
<body>
<pre id="test">
<script class="testbody" type="text/javascript">
SimpleTest.waitForExplicitFinish();
var manager = new MediaTestManager;
function checkDrawImage(vout) {
var canvas = document.createElement("canvas");
var ctx = canvas.getContext("2d");
ctx.drawImage(vout, 0, 0);
var imgData = ctx.getImageData(0, 0, 1, 1);
is(imgData.data[3], 255, "Check video frame pixel has been drawn");
}
function isGreaterThanOrEqualEps(a, b, msg) {
ok(a >= b - 0.01,
"Got " + a + ", expected at least " + b + "; " + msg);
}
function startTest(test, token) {
manager.started(token);
var v = document.createElement('video');
var vout = document.createElement('video');
vout.token = token;
v.src = test.name;
v.preload = "metadata"
var stream;
var checkEnded = function() {
is(stream.currentTime, vout.currentTime, test.name + " stream final currentTime");
if (test.duration) {
isGreaterThanOrEqualEps(vout.currentTime, test.duration,
test.name + " current time at end");
}
is(vout.readyState, vout.HAVE_CURRENT_DATA, test.name + " checking readyState");
ok(vout.ended, test.name + " checking playback has ended");
if (test.type.match(/^video/)) {
checkDrawImage(vout);
}
vout.parentNode.removeChild(vout);
URL.revokeObjectURL(vout.src);
manager.finished(vout.token);
};
vout.addEventListener("ended", checkEnded, false);
document.body.appendChild(vout);
v.onloadedmetadata = function () {
stream = v.mozCaptureStreamUntilEnded();
is(stream.currentTime, 0, test.name + " stream initial currentTime");
vout.src = URL.createObjectURL(stream);
v.play();
vout.play();
};
}
manager.runTests([getPlayableVideo(gSmallTests)], startTest);
</script>
</pre>
</body>
</html>