2010-08-25 13:10:00 +00:00
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<!DOCTYPE HTML>
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<html>
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<!--
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https://bugzilla.mozilla.org/show_bug.cgi?id=490705
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-->
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<head>
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<title>Media test: simple audio write checks</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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</head>
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<body>
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<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=490705">Mozilla Bug 490705</a>
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<pre id="test">
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<script class="testbody" type="text/javascript">
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var channels = 2;
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var rate = 44100;
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function runTests() {
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var a1 = new Audio();
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2013-04-21 06:41:21 +00:00
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ok("mozSetup" in a1, "mozSetup should be supported");
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ok("mozWriteAudio" in a1, "mozWriteAudio should be supported");
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ok("mozCurrentSampleOffset" in a1, "mozCurrentSampleOffset should be supported");
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2010-08-30 03:19:48 +00:00
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try {
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a1.mozSetup(channels, rate);
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} catch (ex) {
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todo(false, "Audio hardware is disabled, can't test audio write API");
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SimpleTest.finish();
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return;
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}
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2010-08-25 13:10:00 +00:00
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is(a1.mozChannels, channels, "mozChannels should be " + channels + ".");
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is(a1.mozSampleRate, rate, "mozSampleRate should be " + rate + ".");
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is(a1.volume, 1.0, "volume should be 1.0 by default.");
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// Make sure changing volume on audio changes write audio stream.
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a1.volume = 0.5;
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is(a1.volume, 0.5, "volume should have been changed to 0.5.");
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a1.muted = true;
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ok(a1.muted, "volume should be muted.");
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is(a1.mozCurrentSampleOffset(), 0, "mozCurrentSampleOffset() not working.");
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// Test writing with js array
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var samples1 = [.5, .5];
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var written = sampleOffset = a1.mozWriteAudio(samples1);
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is(written, samples1.length, "Not all samples in JS Array written.");
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// Test writing with Float32Array
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var samples2 = Float32Array([.2, .3, .2, .3]);
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written = a1.mozWriteAudio(samples2);
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is(written, samples2.length, "Not all samples in Float32Array written.");
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// Test passing the wrong arguments to mozWriteAudio.
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var writeArgsOK = false;
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try {
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// incorrect, should throw
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written = a1.mozWriteAudio(samples2.length, samples2);
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} catch(e) {
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writeArgsOK = true;
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}
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ok(writeArgsOK, "mozWriteAudio args test failed.");
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SimpleTest.finish();
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}
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window.addEventListener("load", function(e) {
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runTests();
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}, false);
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SimpleTest.waitForExplicitFinish();
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</script>
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</pre>
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</body>
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</html>
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