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54 lines
1.3 KiB
HTML
54 lines
1.3 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<title>Test OscillatorNode lifetime and sine phase</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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<pre id="test">
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<script src="webaudio.js" type="text/javascript"></script>
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<script class="testbody" type="text/javascript">
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const signalLength = 2048;
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function createOscillator(context) {
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var osc = context.createOscillator();
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osc.start(0);
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osc.stop(signalLength/context.sampleRate);
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return osc;
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}
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function connectUnreferencedOscillator(context, destination) {
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var osc = createOscillator(context);
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osc.connect(destination);
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}
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var gTest = {
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length: signalLength,
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numberOfChannels: 1,
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createGraph: function(context) {
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var blend = context.createGain();
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connectUnreferencedOscillator(context, blend);
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// Test that the unreferenced oscillator remains alive until it has finished.
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SpecialPowers.forceGC();
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SpecialPowers.forceCC();
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// Create another sine wave oscillator in negative time, which should
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// cancel when mixed with the unreferenced oscillator.
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var oscillator = createOscillator(context);
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oscillator.frequency.value = -440;
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oscillator.connect(blend);
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return blend;
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},
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};
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runTest();
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</script>
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</pre>
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</body>
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</html>
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