gecko-dev/dom/media/webaudio/test/test_pannerNodeChannelCount...

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HTML

<!DOCTYPE HTML>
<html>
<head>
<title>Test PannerNode directly above</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 src="webaudio.js" type="text/javascript"></script>
<script class="testbody" type="text/javascript">
var gTest = {
length: 2048,
numberOfChannels: 2,
createGraph: function(context) {
var buffer = context.createBuffer(2, 2048, context.sampleRate);
for (var i = 0; i < 2048; ++i) {
var sample = Math.sin(440 * 2 * Math.PI * i / context.sampleRate);
// When mixed into a single channel, this produces silence
buffer.getChannelData(0)[i] = sample;
buffer.getChannelData(1)[i] = -sample;
}
var panner = context.createPanner();
panner.positionX.value = 1;
panner.positionY.value = 2;
panner.positionZ.value = 3;
panner.channelCount = 1;
expectException(function() { panner.channelCount = 3; },
DOMException.NOT_SUPPORTED_ERR);
panner.channelCountMode = "explicit";
expectException(function() { panner.channelCountMode = "max"; },
DOMException.NOT_SUPPORTED_ERR);
panner.channelInterpretation = "discrete";
panner.channelInterpretation = "speakers";
var source = context.createBufferSource();
source.buffer = buffer;
source.connect(panner);
source.start(0);
return panner;
},
};
runTest();
</script>
</pre>
</body>
</html>