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| author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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| committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
| commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
| tree | 10027f336435511475e392454359edea8e25895d /dom/media/webaudio/test/test_mediaStreamAudioSourceNodeNoGC.html | |
| parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
| download | UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip | |
Add m-esr52 at 52.6.0
Diffstat (limited to 'dom/media/webaudio/test/test_mediaStreamAudioSourceNodeNoGC.html')
| -rw-r--r-- | dom/media/webaudio/test/test_mediaStreamAudioSourceNodeNoGC.html | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/dom/media/webaudio/test/test_mediaStreamAudioSourceNodeNoGC.html b/dom/media/webaudio/test/test_mediaStreamAudioSourceNodeNoGC.html new file mode 100644 index 000000000..7a9b6c4a6 --- /dev/null +++ b/dom/media/webaudio/test/test_mediaStreamAudioSourceNodeNoGC.html @@ -0,0 +1,89 @@ +<!DOCTYPE HTML> +<html> +<meta charset="utf-8"> +<head> + <title>Test that MediaStreamAudioSourceNode and its input MediaStream stays alive while there are active tracks</title> + <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> +</head> +<body> +<pre id="test"> +<script class="testbody" type="text/javascript"> +SimpleTest.waitForExplicitFinish(); +SimpleTest.requestFlakyTimeout("gUM and WebAudio data is async to main thread. " + + "We need a timeout to see that something does " + + "NOT happen to data."); + +var context = new AudioContext(); +var analyser = context.createAnalyser(); + +function wait(millis, resolveWithThis) { + return new Promise(resolve => setTimeout(() => resolve(resolveWithThis), millis)); +} + +function binIndexForFrequency(frequency) { + return 1 + Math.round(frequency * analyser.fftSize / context.sampleRate); +} + +function waitForAudio(analysisFunction, cancelPromise) { + var data = new Uint8Array(analyser.frequencyBinCount); + var cancelled = false; + var cancelledMsg = ""; + cancelPromise.then(msg => { + cancelled = true; + cancelledMsg = msg; + }); + return new Promise((resolve, reject) => { + var loop = () => { + analyser.getByteFrequencyData(data); + if (cancelled) { + reject(new Error("waitForAudio cancelled: " + cancelledMsg)); + return; + } + if (analysisFunction(data)) { + resolve(); + return; + } + requestAnimationFrame(loop); + }; + loop(); + }); +} + +navigator.mediaDevices.getUserMedia({audio: true, fake: true}) + .then(stream => { + stream.onended = () => ended = true; + let source = context.createMediaStreamSource(stream); + source.connect(analyser); + analyser.connect(context.destination); + }) + .then(() => { + ok(true, "Waiting for audio to pass through the analyser") + return waitForAudio(arr => arr[binIndexForFrequency(1000)] > 200, + wait(60000, "Timeout waiting for audio")); + }) + .then(() => { + ok(true, "Audio was detected by the analyser. Forcing CC."); + SpecialPowers.forceCC(); + SpecialPowers.forceGC(); + SpecialPowers.forceCC(); + SpecialPowers.forceGC(); + + info("Checking that GC didn't destroy the stream or source node"); + return waitForAudio(arr => arr[binIndexForFrequency(1000)] < 50, + wait(5000, "Timeout waiting for GC (timeout OK)")) + .then(() => Promise.reject("Audio stopped unexpectedly"), + () => Promise.resolve()); + }) + .then(() => { + ok(true, "Audio is still flowing"); + SimpleTest.finish(); + }) + .catch(e => { + ok(false, "Error executing test: " + e + (e.stack ? "\n" + e.stack : "")); + SimpleTest.finish(); + }); +</script> +</pre> +</body> +</html> |