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Test Info:

<!DOCTYPE HTML>
<html>
<head>
<title>Test that reloading, pausing and seeking in a media element that's being captured behaves as expected</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
<script src="manifest.js"></script>
</head>
<body>
<video id="v"></video>
<video id="vout"></video>
<video id="vout_untilended"></video>
<pre id="test">
<script>
const v = document.getElementById('v');
const vout = document.getElementById('vout');
const vout_untilended = document.getElementById('vout_untilended');
function dumpEvent(event) {
const video = event.target;
info(
`${video.name}:${video.id} GOT EVENT ${event.type} ` +
`currentTime=${video.currentTime} paused=${video.paused} ` +
`ended=${video.ended} readyState=${video.readyState}`
);
}
function unexpected(event) {
ok(false, `${event.type} event received on ${event.target.id} unexpectedly`);
};
const events = ["timeupdate", "seeking", "seeked", "ended", "playing", "pause"];
for (const e of events) {
v.addEventListener(e, dumpEvent);
vout.addEventListener(e, dumpEvent);
vout_untilended.addEventListener(e, dumpEvent);
}
function isWithinEps(a, b, msg) {
ok(Math.abs(a - b) < 0.01,
"Got " + a + ", expected " + b + "; " + msg);
}
function isGreaterThanOrEqualEps(a, b, msg) {
ok(a >= b - 0.01,
"Got " + a + ", expected at least " + b + "; " + msg);
}
async function startTest(test) {
const seekTime = test.duration/2;
const contentDuration = test.contentDuration ?? test.duration;
v.src = test.name;
v.name = test.name;
vout.name = test.name;
vout_untilended.name = test.name;
v.preload = "metadata";
await new Promise(r => v.onloadedmetadata = r);
vout.srcObject = v.mozCaptureStream();
vout.play();
vout_untilended.srcObject = v.mozCaptureStreamUntilEnded();
vout_untilended.play();
for (const track of [
...vout.srcObject.getTracks(),
...vout_untilended.srcObject.getTracks(),
]) {
ok(track.muted, `${track.kind} track ${track.id} should be muted`);
}
v.play();
await Promise.all([
...vout.srcObject.getTracks(),
...vout_untilended.srcObject.getTracks()
].map(t => new Promise(r => t.onunmute = r)));
await new Promise(r => v.onended = r);
isGreaterThanOrEqualEps(v.currentTime, test.duration,
"checking v.currentTime at first 'ended' event");
await Promise.all([
new Promise(r => vout.onended = r),
new Promise(r => vout_untilended.onended = r),
]);
isGreaterThanOrEqualEps(vout.currentTime, contentDuration,
"checking vout.currentTime at first 'ended' event");
ok(vout.ended, "checking vout has actually ended");
ok(vout_untilended.ended, "checking vout_untilended has actually ended");
vout_untilended.srcObject.onaddtrack = unexpected;
vout_untilended.onplaying = unexpected;
vout_untilended.onended = unexpected;
const voutPreSeekCurrentTime = vout.currentTime;
v.currentTime = seekTime;
await new Promise(r => v.onseeked = r);
is(v.currentTime, seekTime, "Finished seeking");
is(vout.currentTime, voutPreSeekCurrentTime,
"checking vout.currentTime has not changed after seeking");
v.play();
vout.play();
await new Promise(r => v.onended = r);
isGreaterThanOrEqualEps(v.currentTime, test.duration,
"checking v.currentTime at second 'ended' event");
await new Promise(r => vout.onended = r);
isGreaterThanOrEqualEps(vout.currentTime,
(test.duration - seekTime) + contentDuration,
"checking vout.currentTime after seeking and playing through again");
v.src = test.name + "?1";
vout.play();
await v.play();
isnot(vout.srcObject.getTracks().length, 0, "There are some output tracks");
vout.onended = unexpected;
vout.srcObject.onremovetrack = unexpected;
v.pause();
await Promise.all(
vout.srcObject.getTracks().map(t => new Promise(r => t.onmute = r))
);
for (const track of vout.srcObject.getTracks()) {
track.onunmute = unexpected;
}
v.currentTime = 0;
await new Promise(r => v.onseeked = r);
v.play();
await Promise.all(
vout.srcObject.getTracks().map(t => new Promise(r => t.onunmute = r))
);
vout.srcObject.onremovetrack = null;
await new Promise(r => v.onended = r);
isGreaterThanOrEqualEps(v.currentTime, test.duration,
"checking v.currentTime at third 'ended' event");
await new Promise(r => vout.onended = r);
isGreaterThanOrEqualEps(vout.currentTime,
(test.duration - seekTime) + contentDuration*2,
"checking vout.currentTime after seeking, playing through and reloading");
}
(async () => {
SimpleTest.waitForExplicitFinish();
try {
const testVideo = getPlayableVideo(gSmallTests);
if (testVideo) {
await startTest(testVideo);
} else {
todo(false, "No playable video");
}
} catch(e) {
ok(false, `Error: ${e}`);
} finally {
SimpleTest.finish();
}
})();
</script>
</pre>
</body>
</html>