зеркало из https://github.com/mozilla/gecko-dev.git
176 строки
5.7 KiB
HTML
176 строки
5.7 KiB
HTML
<!DOCTYPE HTML>
|
|
<html>
|
|
<head>
|
|
<title>Test for the playbackRate property </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='application/javascript;version=1.8'>
|
|
|
|
let manager = new MediaTestManager;
|
|
|
|
function rangeCheck(lhs, rhs, threshold) {
|
|
var diff = Math.abs(lhs - rhs);
|
|
if (diff < threshold) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
function checkPlaybackRate(wallclock, media, expected, threshold) {
|
|
if (rangeCheck(media / wallclock, expected, threshold)) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// Those value are expected to match those at the top of HTMLMediaElement.cpp.
|
|
let VERY_SLOW_RATE = 0.1,
|
|
SLOW_RATE = 0.25,
|
|
FAST_RATE = 5,
|
|
VERY_FAST_RATE = 20,
|
|
NULL_RATE = 0.0;
|
|
|
|
function ontimeupdate(e) {
|
|
var t = e.target;
|
|
// Skip short files for SoundTouch doesn't work well on small number of samples.
|
|
if (t.gotEnded || t.duration < 2) {
|
|
return;
|
|
}
|
|
t.testedForSlowdown = true;
|
|
if (t.currentTime > t.duration / 2) {
|
|
t.oldCurrentTime = t.currentTime;
|
|
t.timestamp = Date.now();
|
|
var delta = t.oldCurrentTime,
|
|
delta_wallclock = (t.timestamp - t.startTimestamp - t.bufferingTime) / 1000;
|
|
|
|
t.mozPreservesPitch = false;
|
|
is(t.mozPreservesPitch, false, t.name + ": If we disable the pitch preservation, it should appear as such.");
|
|
|
|
t.bufferingTime = 0;
|
|
|
|
is(t.playbackRate, SLOW_RATE, t.name + ": The playback rate shoud be "+SLOW_RATE+".");
|
|
ok(checkPlaybackRate(delta_wallclock, delta, SLOW_RATE, 0.25), t.name + ": We are effectively slowing down playback. (" + delta_wallclock + ", " + delta + ")");
|
|
t.removeEventListener("timeupdate", ontimeupdate);
|
|
t.addEventListener("pause", onpaused);
|
|
t.playbackRate = NULL_RATE;
|
|
t.oldCurrentTime = t.currentTime;
|
|
setTimeout(function() {
|
|
afterNullPlaybackRate(e);
|
|
}, 100);
|
|
}
|
|
}
|
|
|
|
function onpaused(e) {
|
|
var t = e.target;
|
|
t.pausedReceived = true;
|
|
}
|
|
|
|
function afterNullPlaybackRate(e) {
|
|
var t = e.target;
|
|
|
|
// skip if we have received 'ended' event or 'ended' event is pending.
|
|
if (t.gotEnded || t.ended) {
|
|
return;
|
|
}
|
|
|
|
t.testedForNull = true;
|
|
|
|
ok(t.currentTime == t.oldCurrentTime, t.name + ": Current time should not change when playbackRate is null (" + t.currentTime + " " + t.oldCurrentTime + ").");
|
|
ok(!t.paused, t.name + ": The element should not be in paused state.");
|
|
t.removeEventListener("paused", onpaused);
|
|
is(t.pausedReceived, undefined, t.name + ": Paused event should not have been received.");
|
|
t.timestamp = Date.now();
|
|
t.oldCurrentTime = t.currentTime;
|
|
t.playbackRate = VERY_FAST_RATE;
|
|
is(t.playbackRate, FAST_RATE, t.name + ": Playback rate should be clamped to " + FAST_RATE + ".");
|
|
}
|
|
|
|
function onended(e) {
|
|
var t = e.target;
|
|
t.gotEnded = true;
|
|
|
|
t.bufferingTime = 0;
|
|
// If we got "ended" too early, skip these tests.
|
|
if (t.testedForSlowdown && t.testedForNull) {
|
|
is(t.playbackRate, FAST_RATE, t.name + ": The playback rate should still be "+FAST_RATE+".");
|
|
ok(!t.muted, t.name + ": The audio should be muted when playing at high speed, but should not appear as such.");
|
|
is(t.currentTime, t.duration, t.name + ": Current time should be equal to the duration (not change by playback rate).");
|
|
}
|
|
finish_test(t);
|
|
}
|
|
|
|
function onratechange(e) {
|
|
if (!e.target.ratechangecount) {
|
|
e.target.ratechangecount = 0;
|
|
}
|
|
e.target.ratechangecount++;
|
|
}
|
|
|
|
function finish_test(element) {
|
|
removeNodeAndSource(element);
|
|
manager.finished(element.token);
|
|
}
|
|
|
|
// These two functions handle the case when the playback pauses for buffering. It
|
|
// adjusts the timestamps to be accurate. Despite the fact that the web servers
|
|
// is supposed to be on the same machine, buffering pauses can occur (rarely,
|
|
// but still).
|
|
function onplaying(e) {
|
|
var t = e.target;
|
|
if (t.bufferingTimestamp != undefined) {
|
|
t.bufferingTime += (Date.now() - t.bufferingTimestamp);
|
|
t.bufferingTimestamp = undefined;
|
|
}
|
|
}
|
|
|
|
function onwaiting(e) {
|
|
var t = e.target;
|
|
t.bufferingTimestamp = Date.now();
|
|
}
|
|
|
|
function onvolumechange(e) {
|
|
ok(false, e.target.name + ": We should not receive a volumechange event when changing the playback rate.");
|
|
}
|
|
|
|
function startTest(test, token) {
|
|
let elemType = /^audio/.test(test.type) ? "audio" : "video";
|
|
let element = document.createElement(elemType);
|
|
element.src = test.name;
|
|
element.name = test.name;
|
|
element.preload = "metadata";
|
|
element.token = token;
|
|
element.controls = true;
|
|
element.bufferingTime = 0;
|
|
document.body.appendChild(element);
|
|
element.addEventListener("ratechange", onratechange);
|
|
element.addEventListener("timeupdate", ontimeupdate);
|
|
element.addEventListener("ended", onended);
|
|
element.addEventListener("waiting", onwaiting);
|
|
element.addEventListener("playing", onplaying);
|
|
element.addEventListener("volumechange", onvolumechange);
|
|
manager.started(token);
|
|
element.startTimestamp = Date.now();
|
|
is(element.mozPreservesPitch, true, test.name + ": Pitch preservation should be enabled by default.");
|
|
element.addEventListener("loadedmetadata", function() {
|
|
is(element.playbackRate, 1.0, test.name + ": playbackRate should be initially 1.0");
|
|
is(element.defaultPlaybackRate, 1.0, test.name + ": defaultPlaybackRate should be initially 1.0");
|
|
element.playbackRate = VERY_SLOW_RATE;
|
|
is(element.playbackRate, SLOW_RATE, test.name + ": PlaybackRate should be clamped to " + SLOW_RATE + ".");
|
|
element.play();
|
|
element.playbackRate = SLOW_RATE;
|
|
});
|
|
}
|
|
|
|
manager.runTests(gPlayedTests, startTest);
|
|
|
|
</script>
|
|
</pre>
|
|
<div id="elements">
|
|
</div>
|
|
</body>
|
|
</html>
|