mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-07 04:05:49 +00:00
3a03d6982c
--HG-- rename : content/media/webaudio/test/test_audioBufferSourceNodeLoop.html => content/media/webaudio/test/test_audioBufferSourceNodeEnded.html extra : rebase_source : 787d1d19b6463906ff9db8cbfb5e61d76a2ab667
61 lines
1.8 KiB
HTML
61 lines
1.8 KiB
HTML
<!DOCTYPE HTML>
|
|
<html>
|
|
<head>
|
|
<title>Test connecting an AudioNode to an AudioParam</title>
|
|
<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
|
|
<script type="text/javascript" src="webaudio.js"></script>
|
|
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
|
|
</head>
|
|
<body>
|
|
<pre id="test">
|
|
<script class="testbody" type="text/javascript">
|
|
|
|
var gTest = {
|
|
length: 2048,
|
|
createGraph: function(context) {
|
|
var sourceBuffer = context.createBuffer(2, 2048, context.sampleRate);
|
|
for (var i = 0; i < 2048; ++i) {
|
|
sourceBuffer.getChannelData(0)[i] = 1;
|
|
sourceBuffer.getChannelData(1)[i] = -1;
|
|
}
|
|
|
|
var destination = context.destination;
|
|
|
|
var paramSource = context.createBufferSource();
|
|
paramSource.buffer = this.buffer;
|
|
|
|
var source = context.createBufferSource();
|
|
source.buffer = sourceBuffer;
|
|
|
|
var gain = context.createGain();
|
|
|
|
paramSource.connect(gain.gain);
|
|
source.connect(gain);
|
|
|
|
paramSource.start(0);
|
|
source.start(0);
|
|
return gain;
|
|
},
|
|
createExpectedBuffers: function(context) {
|
|
this.buffer = context.createBuffer(2, 2048, context.sampleRate);
|
|
for (var i = 0; i < 2048; ++i) {
|
|
for (var j = 0; j < 2; ++j) {
|
|
this.buffer.getChannelData(j)[i] = Math.sin(440 * 2 * (j + 1) * Math.PI * i / context.sampleRate);
|
|
}
|
|
}
|
|
var expectedBuffer = context.createBuffer(2, 2048, context.sampleRate);
|
|
for (var i = 0; i < 2048; ++i) {
|
|
expectedBuffer.getChannelData(0)[i] = 1 + (this.buffer.getChannelData(0)[i] + this.buffer.getChannelData(1)[i]) / 2;
|
|
expectedBuffer.getChannelData(1)[i] = -(1 + (this.buffer.getChannelData(0)[i] + this.buffer.getChannelData(1)[i]) / 2);
|
|
}
|
|
return expectedBuffer;
|
|
},
|
|
};
|
|
|
|
runTest();
|
|
|
|
</script>
|
|
</pre>
|
|
</body>
|
|
</html>
|