1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/media/webaudio/test/test_gainNodeInLoop.html Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,48 @@
1.4 +<!DOCTYPE HTML>
1.5 +<html>
1.6 +<head>
1.7 + <title>Test GainNode in presence of loops</title>
1.8 + <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
1.9 + <script type="text/javascript" src="webaudio.js"></script>
1.10 + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
1.11 +</head>
1.12 +<body>
1.13 +<pre id="test">
1.14 +<script class="testbody" type="text/javascript">
1.15 +
1.16 +var gTest = {
1.17 + length: 4096,
1.18 + numberOfChannels: 1,
1.19 + createGraph: function(context) {
1.20 + var sourceBuffer = context.createBuffer(1, 2048, context.sampleRate);
1.21 + for (var i = 0; i < 2048; ++i) {
1.22 + sourceBuffer.getChannelData(0)[i] = 1;
1.23 + }
1.24 +
1.25 + var source = context.createBufferSource();
1.26 + source.buffer = sourceBuffer;
1.27 + source.loop = true;
1.28 + source.start(0);
1.29 + source.stop(sourceBuffer.duration * 2);
1.30 +
1.31 + var gain = context.createGain();
1.32 + // Adjust the gain in a way that we don't just end up modifying AudioChunk::mVolume
1.33 + gain.gain.setValueAtTime(0.5, 0);
1.34 + source.connect(gain);
1.35 + return gain;
1.36 + },
1.37 + createExpectedBuffers: function(context) {
1.38 + var expectedBuffer = context.createBuffer(1, 4096, context.sampleRate);
1.39 + for (var i = 0; i < 4096; ++i) {
1.40 + expectedBuffer.getChannelData(0)[i] = 0.5;
1.41 + }
1.42 + return expectedBuffer;
1.43 + },
1.44 +};
1.45 +
1.46 +runTest();
1.47 +
1.48 +</script>
1.49 +</pre>
1.50 +</body>
1.51 +</html>
