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comparison: content/media/webaudio/test/test_gainNodeInLoop.html
content/media/webaudio/test/test_gainNodeInLoop.html
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:8390e35d446c |
|---|---|
| 1 <!DOCTYPE HTML> | |
| 2 <html> | |
| 3 <head> | |
| 4 <title>Test GainNode in presence of loops</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"> | |
| 12 | |
| 13 var gTest = { | |
| 14 length: 4096, | |
| 15 numberOfChannels: 1, | |
| 16 createGraph: function(context) { | |
| 17 var sourceBuffer = context.createBuffer(1, 2048, context.sampleRate); | |
| 18 for (var i = 0; i < 2048; ++i) { | |
| 19 sourceBuffer.getChannelData(0)[i] = 1; | |
| 20 } | |
| 21 | |
| 22 var source = context.createBufferSource(); | |
| 23 source.buffer = sourceBuffer; | |
| 24 source.loop = true; | |
| 25 source.start(0); | |
| 26 source.stop(sourceBuffer.duration * 2); | |
| 27 | |
| 28 var gain = context.createGain(); | |
| 29 // Adjust the gain in a way that we don't just end up modifying AudioChunk::mVolume | |
| 30 gain.gain.setValueAtTime(0.5, 0); | |
| 31 source.connect(gain); | |
| 32 return gain; | |
| 33 }, | |
| 34 createExpectedBuffers: function(context) { | |
| 35 var expectedBuffer = context.createBuffer(1, 4096, context.sampleRate); | |
| 36 for (var i = 0; i < 4096; ++i) { | |
| 37 expectedBuffer.getChannelData(0)[i] = 0.5; | |
| 38 } | |
| 39 return expectedBuffer; | |
| 40 }, | |
| 41 }; | |
| 42 | |
| 43 runTest(); | |
| 44 | |
| 45 </script> | |
| 46 </pre> | |
| 47 </body> | |
| 48 </html> |
