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<!DOCTYPE HTML>
<html>
<head>
<script type="application/javascript" src="mediaStreamPlayback.js"></script>
</head>
<body>
<pre id="test">
<script type="application/javascript">
"use strict";
createHTML({
title: "MediaStream.clone()",
bug: "1208371"
});
runTest(() => Promise.resolve()
.then(() => getUserMedia({audio: true, video: true})).then(stream => {
info("Test clone()ing an audio/video gUM stream");
var clone = stream.clone();
checkMediaStreamCloneAgainstOriginal(clone, stream);
checkMediaStreamTrackCloneAgainstOriginal(clone.getAudioTracks()[0],
stream.getAudioTracks()[0]);
checkMediaStreamTrackCloneAgainstOriginal(clone.getVideoTracks()[0],
stream.getVideoTracks()[0]);
isnot(clone.id.length, 0, "Stream clone should have an id string");
isnot(clone.getAudioTracks()[0].id.length, 0,
"Audio track clone should have an id string");
isnot(clone.getVideoTracks()[0].id.length, 0,
"Audio track clone should have an id string");
info("Stopping original tracks");
stream.getTracks().forEach(t => t.stop());
info("Playing from track clones");
var test = createMediaElement('video', 'testClonePlayback');
var playback = new MediaStreamPlayback(test, clone);
return playback.playMedia(false);
})
.then(() => getUserMedia({video: true})).then(stream =>
getUserMedia({video: true}).then(otherStream => {
info("Test addTrack()ing a video track to a stream without affecting its clone");
var track = stream.getTracks()[0];
var otherTrack = otherStream.getTracks()[0];
var streamClone = stream.clone();
var trackClone = streamClone.getTracks()[0];
checkMediaStreamContains(streamClone, [trackClone], "Initial clone");
stream.addTrack(otherTrack);
checkMediaStreamContains(stream, [track, otherTrack],
"Added video to original");
checkMediaStreamContains(streamClone, [trackClone],
"Clone not affected");
stream.removeTrack(track);
streamClone.addTrack(track);
checkMediaStreamContains(streamClone, [trackClone, track],
"Added video to clone");
checkMediaStreamContains(stream, [otherTrack],
"Original not affected");
// Not part of streamClone. Does not get stopped by the playback test.
otherTrack.stop();
otherStream.stop();
var test = createMediaElement('video', 'testClonePlayback');
var playback = new MediaStreamPlayback(test, streamClone);
return playback.playMedia(false)
.then(() => stream.getTracks().forEach(t => t.stop()))
.then(() => stream.stop());
}))
.then(() => getUserMedia({audio: true, video: true})).then(stream => {
info("Test cloning a stream into inception");
var clone = stream;
var clones = Array(10).fill().map(() => clone = clone.clone());
var inceptionClone = clones.pop();
checkMediaStreamCloneAgainstOriginal(inceptionClone, stream);
stream.getTracks().forEach(t => (stream.removeTrack(t),
inceptionClone.addTrack(t)));
is(inceptionClone.getAudioTracks().length, 2,
"The inception clone should contain the original audio track and a track clone");
is(inceptionClone.getVideoTracks().length, 2,
"The inception clone should contain the original video track and a track clone");
var test = createMediaElement('video', 'testClonePlayback');
var playback = new MediaStreamPlayback(test, inceptionClone);
return playback.playMedia(false)
.then(() => clones.forEach(c => c.getTracks().forEach(t => t.stop())));
})
.then(() => getUserMedia({audio: true, video: true})).then(stream => {
info("Test adding tracks from many stream clones to the original stream");
const LOOPS = 3;
for (var i = 0; i < LOOPS; i++) {
stream.clone().getTracks().forEach(t => stream.addTrack(t));
}
is(stream.getAudioTracks().length, Math.pow(2, LOOPS),
"The original track should contain the original audio track and all the audio clones");
is(stream.getVideoTracks().length, Math.pow(2, LOOPS),
"The original track should contain the original video track and all the video clones");
stream.getTracks().forEach(t1 => is(stream.getTracks()
.filter(t2 => t1.id == t2.id)
.length,
1, "Each track should be unique"));
var test = createMediaElement('video', 'testClonePlayback');
var playback = new MediaStreamPlayback(test, stream);
return playback.playMedia(false);
})
.then(() => {
info("Testing audio content routing with MediaStream.clone()");
var ac = new AudioContext();
var osc1kOriginal = createOscillatorStream(ac, 1000);
var audioTrack1kOriginal = osc1kOriginal.getTracks()[0];
var audioTrack1kClone = osc1kOriginal.clone().getTracks()[0];
var osc5kOriginal = createOscillatorStream(ac, 5000);
var audioTrack5kOriginal = osc5kOriginal.getTracks()[0];
var audioTrack5kClone = osc5kOriginal.clone().getTracks()[0];
return Promise.resolve().then(() => {
info("Analysing audio output of original stream (1k + 5k)");
var stream = new MediaStream();
stream.addTrack(audioTrack1kOriginal);
stream.addTrack(audioTrack5kOriginal);
var analyser = new AudioStreamAnalyser(ac, stream);
return analyser.waitForAnalysisSuccess(array =>
array[analyser.binIndexForFrequency(50)] < 50 &&
array[analyser.binIndexForFrequency(1000)] > 200 &&
array[analyser.binIndexForFrequency(3000)] < 50 &&
array[analyser.binIndexForFrequency(5000)] > 200 &&
array[analyser.binIndexForFrequency(10000)] < 50)
.then(() => {
info("Waiting for original tracks to stop");
stream.getTracks().forEach(t => t.stop());
return analyser.waitForAnalysisSuccess(array =>
array[analyser.binIndexForFrequency(50)] < 50 &&
// WebAudioDestination streams do not handle stop()
// XXX Should they? Plan to resolve that in bug 1208384.
// array[analyser.binIndexForFrequency(1000)] < 50 &&
array[analyser.binIndexForFrequency(3000)] < 50 &&
// array[analyser.binIndexForFrequency(5000)] < 50 &&
array[analyser.binIndexForFrequency(10000)] < 50);
})
.then(() => analyser.disconnect());
}).then(() => {
info("Analysing audio output of stream clone (1k + 5k)");
var stream = new MediaStream();
stream.addTrack(audioTrack1kClone);
stream.addTrack(audioTrack5kClone);
var analyser = new AudioStreamAnalyser(ac, stream);
return analyser.waitForAnalysisSuccess(array =>
array[analyser.binIndexForFrequency(50)] < 50 &&
array[analyser.binIndexForFrequency(1000)] > 200 &&
array[analyser.binIndexForFrequency(3000)] < 50 &&
array[analyser.binIndexForFrequency(5000)] > 200 &&
array[analyser.binIndexForFrequency(10000)] < 50)
.then(() => analyser.disconnect());
}).then(() => {
info("Analysing audio output of clone of clone (1k + 5k)");
var stream = new MediaStream([audioTrack1kClone, audioTrack5kClone]).clone();
var analyser = new AudioStreamAnalyser(ac, stream);
return analyser.waitForAnalysisSuccess(array =>
array[analyser.binIndexForFrequency(50)] < 50 &&
array[analyser.binIndexForFrequency(1000)] > 200 &&
array[analyser.binIndexForFrequency(3000)] < 50 &&
array[analyser.binIndexForFrequency(5000)] > 200 &&
array[analyser.binIndexForFrequency(10000)] < 50)
.then(() => analyser.disconnect());
}).then(() => {
info("Analysing audio output of clone() + addTrack()ed tracks (1k + 5k)");
var stream =
new MediaStream(new MediaStream([ audioTrack1kClone
, audioTrack5kClone
]).clone().getTracks());
var analyser = new AudioStreamAnalyser(ac, stream);
return analyser.waitForAnalysisSuccess(array =>
array[analyser.binIndexForFrequency(50)] < 50 &&
array[analyser.binIndexForFrequency(1000)] > 200 &&
array[analyser.binIndexForFrequency(3000)] < 50 &&
array[analyser.binIndexForFrequency(5000)] > 200 &&
array[analyser.binIndexForFrequency(10000)] < 50)
.then(() => analyser.disconnect());
}).then(() => {
info("Analysing audio output of clone()d tracks in original stream (1k) " +
"and clone()d tracks in stream clone (5k)");
var stream = new MediaStream([audioTrack1kClone, audioTrack5kClone]);
var streamClone = stream.clone();
stream.getTracks().forEach(t => stream.removeTrack(t));
stream.addTrack(streamClone.getTracks()[0]);
streamClone.removeTrack(streamClone.getTracks()[0]);
var analyser = new AudioStreamAnalyser(ac, stream);
return analyser.waitForAnalysisSuccess(array =>
array[analyser.binIndexForFrequency(50)] < 50 &&
array[analyser.binIndexForFrequency(1000)] > 200 &&
array[analyser.binIndexForFrequency(3000)] < 50 &&
array[analyser.binIndexForFrequency(5000)] < 50)
.then(() => {
analyser.disconnect();
var cloneAnalyser = new AudioStreamAnalyser(ac, streamClone);
return cloneAnalyser.waitForAnalysisSuccess(array =>
array[cloneAnalyser.binIndexForFrequency(1000)] < 50 &&
array[cloneAnalyser.binIndexForFrequency(3000)] < 50 &&
array[cloneAnalyser.binIndexForFrequency(5000)] > 200 &&
array[cloneAnalyser.binIndexForFrequency(10000)] < 50)
.then(() => cloneAnalyser.disconnect());
});
}).then(() => {
info("Analysing audio output enabled and disabled tracks that don't affect each other");
var stream = new MediaStream([audioTrack1kClone, audioTrack5kClone]);
var clone = stream.clone();
stream.getTracks()[0].enabled = true;
stream.getTracks()[1].enabled = false;
clone.getTracks()[0].enabled = false;
clone.getTracks()[1].enabled = true;
var analyser = new AudioStreamAnalyser(ac, stream);
return analyser.waitForAnalysisSuccess(array =>
array[analyser.binIndexForFrequency(50)] < 50 &&
array[analyser.binIndexForFrequency(1000)] > 200 &&
array[analyser.binIndexForFrequency(3000)] < 50 &&
array[analyser.binIndexForFrequency(5000)] < 50)
.then(() => {
analyser.disconnect();
var cloneAnalyser = new AudioStreamAnalyser(ac, clone);
return cloneAnalyser.waitForAnalysisSuccess(array =>
array[cloneAnalyser.binIndexForFrequency(1000)] < 50 &&
array[cloneAnalyser.binIndexForFrequency(3000)] < 50 &&
array[cloneAnalyser.binIndexForFrequency(5000)] > 200 &&
array[cloneAnalyser.binIndexForFrequency(10000)] < 50)
.then(() => cloneAnalyser.disconnect());
})
// Restore original tracks
.then(() => stream.getTracks().forEach(t => t.enabled = true));
});
}));
</script>
</pre>
</body>
</html>
|
