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<!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' >
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if (navigator.platform.startsWith("Win")) {
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SimpleTest.expectAssertions(0, 1);
}
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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 nsHTMLMediaElement.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) {
Backout b3a8618f901c (bug 829042), 34a9ef8f929d (bug 822933), 4c1215cefbab (bug 826349), 70bb7f775178 (bug 825325), e9c8447fb197 (bug 828713), eb6ebf01eafe (bug 828901), f1f3ef647920 (bug 825329), f9d7b5722d4f (bug 825329), 5add564d4546 (bug 819377), 55e93d1fa972 (bug 804875), f14639a3461e (bug 804875), 23456fc21052 (bug 814308) for Windows pgo-only mochitest-1 media test timeouts on a CLOSED TREE
2013-01-16 15:16:23 +00:00
is(t.ratechangecount, 7, "We should have received 7 \"ratechange\" events.");
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} else {
Backout b3a8618f901c (bug 829042), 34a9ef8f929d (bug 822933), 4c1215cefbab (bug 826349), 70bb7f775178 (bug 825325), e9c8447fb197 (bug 828713), eb6ebf01eafe (bug 828901), f1f3ef647920 (bug 825329), f9d7b5722d4f (bug 825329), 5add564d4546 (bug 819377), 55e93d1fa972 (bug 804875), f14639a3461e (bug 804875), 23456fc21052 (bug 814308) for Windows pgo-only mochitest-1 media test timeouts on a CLOSED TREE
2013-01-16 15:16:23 +00:00
is(t.ratechangecount, 8, "We should have received 8 \"ratechange\" events.");
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}
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 >
