2013-05-30 03:33:14 +04:00
|
|
|
<!DOCTYPE HTML>
|
|
|
|
|
<html>
|
|
|
|
|
<head>
|
|
|
|
|
<title>Test OfflineAudioContext with a channel count less than the specified number</title>
|
2019-04-16 06:53:28 +03:00
|
|
|
<script src="/tests/SimpleTest/SimpleTest.js"></script>
|
2013-05-30 03:33:14 +04:00
|
|
|
<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">
|
|
|
|
|
|
|
|
|
|
SimpleTest.waitForExplicitFinish();
|
|
|
|
|
addLoadEvent(function() {
|
|
|
|
|
var ctx = new OfflineAudioContext(6, 100, 22050);
|
|
|
|
|
|
|
|
|
|
var buf = ctx.createBuffer(2, 100, ctx.sampleRate);
|
|
|
|
|
for (var i = 0; i < 2; ++i) {
|
|
|
|
|
for (var j = 0; j < 100; ++j) {
|
|
|
|
|
buf.getChannelData(i)[j] = Math.sin(2 * Math.PI * 200 * j / ctx.sampleRate);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
var emptyBuffer = ctx.createBuffer(1, 100, ctx.sampleRate);
|
|
|
|
|
|
|
|
|
|
var src = ctx.createBufferSource();
|
|
|
|
|
src.buffer = buf;
|
|
|
|
|
src.start(0);
|
|
|
|
|
src.connect(ctx.destination);
|
|
|
|
|
ctx.destination.channelCountMode = "max";
|
|
|
|
|
ctx.startRendering();
|
|
|
|
|
ctx.oncomplete = function(e) {
|
|
|
|
|
is(e.renderedBuffer.numberOfChannels, 6, "Correct expected number of buffers");
|
2013-12-03 03:13:15 +04:00
|
|
|
compareChannels(e.renderedBuffer.getChannelData(0), buf.getChannelData(0));
|
|
|
|
|
compareChannels(e.renderedBuffer.getChannelData(1), buf.getChannelData(1));
|
2013-05-30 03:33:14 +04:00
|
|
|
for (var i = 2; i < 6; ++i) {
|
2013-12-03 03:13:15 +04:00
|
|
|
compareChannels(e.renderedBuffer.getChannelData(i), emptyBuffer.getChannelData(0));
|
2013-05-30 03:33:14 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
SimpleTest.finish();
|
|
|
|
|
};
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
</script>
|
|
|
|
|
</pre>
|
|
|
|
|
</body>
|
|
|
|
|
</html>
|
