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* test_playback_rate.html In the patch2, we would honestly return the value of playback rate. * test_info_leak.html/test_load.html According to [1], we should only dispatch event "ratechange" when playbackRate or defaultPlaybackRate attribute has just been updated. In these tests, they didn't change the playbackRate or defaultPlaybackRate, we should not expect for the "ratechange" event. [1] https://html.spec.whatwg.org/multipage/media.html#event-media-ratechange MozReview-Commit-ID: LjVDNnf4YX4 --HG-- extra : rebase_source : 3b58649212c24ccd5e17a64c3dc7fce8a9600207
176 lines
5.7 KiB
HTML
176 lines
5.7 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<title>Test for the playbackRate property </title>
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<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
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<script type="text/javascript" src="manifest.js"></script>
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</head>
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<body>
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<pre id="test">
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<script class="testbody" type='application/javascript'>
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let manager = new MediaTestManager;
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function rangeCheck(lhs, rhs, threshold) {
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var diff = Math.abs(lhs - rhs);
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if (diff < threshold) {
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return true;
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}
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return false;
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}
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function checkPlaybackRate(wallclock, media, expected, threshold) {
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if (rangeCheck(media / wallclock, expected, threshold)) {
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return true;
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}
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return false;
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}
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// Those value are expected to match those at the top of HTMLMediaElement.cpp.
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let VERY_SLOW_RATE = 1 / 32,
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SLOW_RATE = 1 / 16,
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FAST_RATE = 16,
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VERY_FAST_RATE = 20,
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NULL_RATE = 0.0;
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function ontimeupdate(e) {
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var t = e.target;
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// Skip short files for SoundTouch doesn't work well on small number of samples.
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if (t.gotEnded || t.duration < 2) {
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return;
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}
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t.testedForSlowdown = true;
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if (t.currentTime > t.duration / 2) {
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t.oldCurrentTime = t.currentTime;
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t.timestamp = Date.now();
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var delta = t.oldCurrentTime,
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delta_wallclock = (t.timestamp - t.startTimestamp - t.bufferingTime) / 1000;
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t.mozPreservesPitch = false;
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is(t.mozPreservesPitch, false, t.name + ": If we disable the pitch preservation, it should appear as such.");
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t.bufferingTime = 0;
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is(t.playbackRate, SLOW_RATE, t.name + ": The playback rate shoud be "+SLOW_RATE+".");
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ok(checkPlaybackRate(delta_wallclock, delta, SLOW_RATE, 0.25), t.name + ": We are effectively slowing down playback. (" + delta_wallclock + ", " + delta + ")");
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t.removeEventListener("timeupdate", ontimeupdate);
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t.addEventListener("pause", onpaused);
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t.playbackRate = NULL_RATE;
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t.oldCurrentTime = t.currentTime;
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setTimeout(function() {
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afterNullPlaybackRate(e);
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}, 100);
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}
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}
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function onpaused(e) {
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var t = e.target;
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t.pausedReceived = true;
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}
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function afterNullPlaybackRate(e) {
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var t = e.target;
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// skip if we have received 'ended' event or 'ended' event is pending.
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if (t.gotEnded || t.ended) {
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return;
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}
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t.testedForNull = true;
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ok(t.currentTime == t.oldCurrentTime, t.name + ": Current time should not change when playbackRate is null (" + t.currentTime + " " + t.oldCurrentTime + ").");
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ok(!t.paused, t.name + ": The element should not be in paused state.");
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t.removeEventListener("paused", onpaused);
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is(t.pausedReceived, undefined, t.name + ": Paused event should not have been received.");
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t.timestamp = Date.now();
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t.oldCurrentTime = t.currentTime;
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t.playbackRate = VERY_FAST_RATE;
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is(t.playbackRate, VERY_FAST_RATE, t.name + ": Playback rate should be clamped to " + VERY_FAST_RATE + ".");
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}
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function onended(e) {
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var t = e.target;
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t.gotEnded = true;
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t.bufferingTime = 0;
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// If we got "ended" too early, skip these tests.
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if (t.testedForSlowdown && t.testedForNull) {
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is(t.playbackRate, FAST_RATE, t.name + ": The playback rate should still be "+FAST_RATE+".");
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ok(!t.muted, t.name + ": The audio should be muted when playing at high speed, but should not appear as such.");
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is(t.currentTime, t.duration, t.name + ": Current time should be equal to the duration (not change by playback rate).");
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}
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finish_test(t);
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}
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function onratechange(e) {
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if (!e.target.ratechangecount) {
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e.target.ratechangecount = 0;
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}
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e.target.ratechangecount++;
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}
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function finish_test(element) {
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removeNodeAndSource(element);
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manager.finished(element.token);
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}
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// These two functions handle the case when the playback pauses for buffering. It
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// adjusts the timestamps to be accurate. Despite the fact that the web servers
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// is supposed to be on the same machine, buffering pauses can occur (rarely,
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// but still).
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function onplaying(e) {
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var t = e.target;
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if (t.bufferingTimestamp != undefined) {
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t.bufferingTime += (Date.now() - t.bufferingTimestamp);
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t.bufferingTimestamp = undefined;
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}
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}
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function onwaiting(e) {
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var t = e.target;
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t.bufferingTimestamp = Date.now();
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}
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function onvolumechange(e) {
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ok(false, e.target.name + ": We should not receive a volumechange event when changing the playback rate.");
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}
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function startTest(test, token) {
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let elemType = /^audio/.test(test.type) ? "audio" : "video";
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let element = document.createElement(elemType);
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element.src = test.name;
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element.name = test.name;
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element.preload = "metadata";
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element.token = token;
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element.controls = true;
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element.bufferingTime = 0;
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document.body.appendChild(element);
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element.addEventListener("ratechange", onratechange);
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element.addEventListener("timeupdate", ontimeupdate);
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element.addEventListener("ended", onended);
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element.addEventListener("waiting", onwaiting);
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element.addEventListener("playing", onplaying);
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element.addEventListener("volumechange", onvolumechange);
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manager.started(token);
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element.startTimestamp = Date.now();
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is(element.mozPreservesPitch, true, test.name + ": Pitch preservation should be enabled by default.");
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element.addEventListener("loadedmetadata", function() {
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is(element.playbackRate, 1.0, test.name + ": playbackRate should be initially 1.0");
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is(element.defaultPlaybackRate, 1.0, test.name + ": defaultPlaybackRate should be initially 1.0");
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element.playbackRate = VERY_SLOW_RATE;
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is(element.playbackRate, VERY_SLOW_RATE, test.name + ": PlaybackRate should be " + VERY_SLOW_RATE + ".");
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element.play();
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element.playbackRate = SLOW_RATE;
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});
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}
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manager.runTests(gPlayedTests, startTest);
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</script>
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</pre>
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<div id="elements">
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</div>
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</body>
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</html>
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