summaryrefslogtreecommitdiffstats
path: root/dom/media/webaudio/test/test_analyserNodeOutput.html
blob: e6255fee006c935f994b50d81be1e9b501d0b2c7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
<!DOCTYPE HTML>
<html>
<head>
  <title>Test AnalyserNode</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,
  numberOfChannels: 1,
  createGraph: function(context) {
    var source = context.createBufferSource();

    var analyser = context.createAnalyser();

    source.buffer = this.buffer;

    source.connect(analyser);

    source.start(0);
    return analyser;
  },
  createExpectedBuffers: function(context) {
    this.buffer = context.createBuffer(1, 2048, context.sampleRate);
    for (var i = 0; i < 2048; ++i) {
      this.buffer.getChannelData(0)[i] = Math.sin(440 * 2 * Math.PI * i / context.sampleRate);
    }

    return [this.buffer];
  },
};

runTest();

</script>
</pre>
</body>
</html>