content/media/webaudio/test/test_offlineDestinationChannelCountMore.html@44a2da4a2ab2
content/media/webaudio/test/test_offlineDestinationChannelCountMore.html
Fri, 16 Jan 2015 04:50:19 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Fri, 16 Jan 2015 04:50:19 +0100
- branch
- TOR_BUG_9701
- changeset 13
- 44a2da4a2ab2
- permissions
- -rw-r--r--
Replace accessor implementation with direct member state manipulation, by
request https://trac.torproject.org/projects/tor/ticket/9701#comment:32
1 <!DOCTYPE HTML>
2 <html>
3 <head>
4 <title>Test OfflineAudioContext with a channel count less than the specified number</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 SimpleTest.waitForExplicitFinish();
14 addLoadEvent(function() {
15 var ctx = new OfflineAudioContext(6, 100, 22050);
17 var buf = ctx.createBuffer(2, 100, ctx.sampleRate);
18 for (var i = 0; i < 2; ++i) {
19 for (var j = 0; j < 100; ++j) {
20 buf.getChannelData(i)[j] = Math.sin(2 * Math.PI * 200 * j / ctx.sampleRate);
21 }
22 }
23 var emptyBuffer = ctx.createBuffer(1, 100, ctx.sampleRate);
25 var src = ctx.createBufferSource();
26 src.buffer = buf;
27 src.start(0);
28 src.connect(ctx.destination);
29 ctx.destination.channelCountMode = "max";
30 ctx.startRendering();
31 ctx.oncomplete = function(e) {
32 is(e.renderedBuffer.numberOfChannels, 6, "Correct expected number of buffers");
33 compareChannels(e.renderedBuffer.getChannelData(0), buf.getChannelData(0));
34 compareChannels(e.renderedBuffer.getChannelData(1), buf.getChannelData(1));
35 for (var i = 2; i < 6; ++i) {
36 compareChannels(e.renderedBuffer.getChannelData(i), emptyBuffer.getChannelData(0));
37 }
39 SimpleTest.finish();
40 };
41 });
43 </script>
44 </pre>
45 </body>
46 </html>
