content/media/webaudio/test/test_audioBufferSourceNodeLoop.html@6474c204b198
content/media/webaudio/test/test_audioBufferSourceNodeLoop.html
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
1 <!DOCTYPE HTML>
2 <html>
3 <head>
4 <title>Test AudioBufferSourceNode looping</title>
5 <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
6 <script type="text/javascript" src="webaudio.js"></script>
7 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
8 </head>
9 <body>
10 <pre id="test">
11 <script class="testbody" type="text/javascript">
13 var gTest = {
14 length: 2048 * 4,
15 numberOfChannels: 1,
16 createGraph: function(context) {
17 var buffer = context.createBuffer(1, 2048, context.sampleRate);
18 for (var i = 0; i < 2048; ++i) {
19 buffer.getChannelData(0)[i] = Math.sin(440 * 2 * Math.PI * i / context.sampleRate);
20 }
22 var source = context.createBufferSource();
23 source.buffer = buffer;
25 source.start(0);
26 source.loop = true;
27 return source;
28 },
29 createExpectedBuffers: function(context) {
30 var expectedBuffer = context.createBuffer(1, 2048 * 4, context.sampleRate);
31 for (var i = 0; i < 4; ++i) {
32 for (var j = 0; j < 2048; ++j) {
33 expectedBuffer.getChannelData(0)[i * 2048 + j] = Math.sin(440 * 2 * Math.PI * j / context.sampleRate);
34 }
35 }
36 return expectedBuffer;
37 },
38 };
40 runTest();
42 </script>
43 </pre>
44 </body>
45 </html>
