gecko-dev/content/media/test/test_playback_rate.html
Andrea Marchesini eb3d295f7f Bug 841493 - Rename nsHTMLMediaElement to HTMLMediaElement, r=Ms2ger
--HG--
rename : content/html/content/public/nsHTMLMediaElement.h => content/html/content/public/HTMLMediaElement.h
rename : content/html/content/src/nsHTMLMediaElement.cpp => content/html/content/src/HTMLMediaElement.cpp
2013-03-19 13:23:54 +01:00

223 lines
7.1 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'>
if (navigator.platform.startsWith("Win")) {
SimpleTest.expectAssertions(0, 1);
} else if (navigator.platform.startsWith("Mac")) {
SimpleTest.expectAssertions(0, 2);
}
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;
if (t.gotEnded) {
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, "If we disable the pitch preservation, it should appear as such.");
t.bufferingTime = 0;
is(t.playbackRate, SLOW_RATE,
"The playback rate shoud be "+SLOW_RATE+"." + t.token);
ok(checkPlaybackRate(delta_wallclock, delta, SLOW_RATE, 0.25), "We are effectively slowing down playback. (" + delta_wallclock + ", " + delta + ") for " + t.token);
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;
t.testedForNull = true;
if (t.gotEnded) {
return;
}
// The currentTime won't be perfectly equal because of the latency
// compensation. We expect no more that 300ms difference.
let THRESHOLD = 0.3;
ok(rangeCheck(t.currentTime, t.oldCurrentTime, THRESHOLD), "Current time should not change when playbackRate is null (" + t.currentTime + " " + t.oldCurrentTime + ").");
ok(!t.paused, "The element should not be in paused state.");
t.removeEventListener("paused", onpaused);
is(t.pausedReceived, undefined, "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, "Playback rate should be clamped to " + FAST_RATE + ".");
}
function onended(e) {
var t = e.target,
playtime = (Date.now() - t.timestamp - t.bufferingTime) / 1000,
mediaTime = t.duration - t.oldCurrentTime;
if (!(t.testedForSlowdown && t.testedForNull)) {
t.gotEnded = true;
t.skippedFastPart = true;
}
t.bufferingTime = 0;
// We got "ended" too early, skip these tests.
if (t.testedForSlowdown && t.testedForNull) {
is(t.playbackRate, FAST_RATE, "The playback rate should still be "+FAST_RATE+".");
ok(!t.muted, "The audio should be muted when playing at high speed, but should not appear as such.");
is(t.currentTime, t.duration, "Current time should be equal to the duration (not change by playback rate).");
}
test_defaultPlaybackRate(e);
}
function test_defaultPlaybackRate(e) {
var t = e.target;
t.currentTime = 0.0;
t.defaultPlaybackRate = SLOW_RATE;
t.addEventListener("timeupdate", ontimeupdate_defaultPlaybackRate);
t.startTimestamp = Date.now();
t.play();
}
function ontimeupdate_defaultPlaybackRate(e) {
var t = e.target;
if (t.currentTime > t.duration / 10) {
t.oldCurrentTime = t.currentTime;
t.timestamp = Date.now();
var delta = t.oldCurrentTime,
delta_wallclock = (t.timestamp - t.startTimestamp - t.bufferingTime) / 1000;
t.bufferingTime = 0;
is(t.playbackRate, SLOW_RATE,
"The playback rate shoud be "+SLOW_RATE+"." + t.token + '\n');
is(t.defaultPlaybackRate, SLOW_RATE,
"The default playback rate shoud be "+SLOW_RATE+"." + t.token);
ok(delta_wallclock > delta , "We are effectively slowing down playback. (" + delta_wallclock + ", " + delta + ")");
if (t.skippedFastPart) {
is(t.ratechangecount, 7, "We should have received 7 \"ratechange\" events.");
} else {
is(t.ratechangecount, 8, "We should have received 8 \"ratechange\" events.");
}
finish_test(t);
}
}
function onratechange(e) {
if (!e.target.ratechangecount) {
e.target.ratechangecount = 0;
}
e.target.ratechangecount++;
}
function finish_test(element) {
if (element.parentNode)
element.parentNode.removeChild(element);
element.src="";
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, "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.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, "Pitch preservation should be enabled by default.");
element.addEventListener("loadedmetadata", function() {
is(element.playbackRate, 1.0, "playbackRate should be initially 1.0");
is(element.defaultPlaybackRate, 1.0, "defaultPlaybackRate should be initially 1.0");
element.playbackRate = VERY_SLOW_RATE;
is(element.playbackRate, SLOW_RATE, "PlaybackRate should be clamped to " + SLOW_RATE + ".");
element.play();
is(element.playbackRate, 1.0, "playbackRate should be reset to 1.0 on play() call");
element.playbackRate = SLOW_RATE;
});
}
manager.runTests(gPlayedTests, startTest);
</script>
</pre>
<div id="elements">
</div>
</body>
</html>