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comparison: content/media/webaudio/test/test_bug972678.html
content/media/webaudio/test/test_bug972678.html
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:22331d4d998a |
|---|---|
| 1 <!DOCTYPE HTML> | |
| 2 <html> | |
| 3 <head> | |
| 4 <title>Test buffers do not interfere when scheduled in sequence</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 var OFFSETS = [0.005, 0.01, 0.02, 0.03]; | |
| 13 var LENGTH = 128; | |
| 14 | |
| 15 var gTest = { | |
| 16 length: 128 * OFFSETS.length, | |
| 17 numberOfChannels: 1, | |
| 18 | |
| 19 createGraph: function(context) { | |
| 20 var gain = context.createGain(); | |
| 21 | |
| 22 // create a repeating sample | |
| 23 var repeatingSample = context.createBuffer(1, 2, context.sampleRate); | |
| 24 var c = repeatingSample.getChannelData(0); | |
| 25 for (var i = 0; i < repeatingSample.length; ++i) { | |
| 26 c[i] = i % 2 == 0 ? 1 : -1; | |
| 27 } | |
| 28 | |
| 29 OFFSETS.forEach(function (offset, offsetIdx) { | |
| 30 // Schedule a set of nodes to repeat the sample. | |
| 31 for (var i = 0; i < LENGTH; i += repeatingSample.length) { | |
| 32 var source = context.createBufferSource(); | |
| 33 source.buffer = repeatingSample; | |
| 34 source.connect(gain); | |
| 35 source.start((offsetIdx * LENGTH + i + offset) / context.sampleRate); | |
| 36 } | |
| 37 | |
| 38 buffer = context.createBuffer(1, LENGTH, context.sampleRate); | |
| 39 c = buffer.getChannelData(0); | |
| 40 for (var i = 0; i < buffer.length; ++i) { | |
| 41 c[i] = i % 2 == 0 ? -1 : 1; | |
| 42 } | |
| 43 | |
| 44 var source = context.createBufferSource(); | |
| 45 source.buffer = buffer; | |
| 46 source.connect(gain); | |
| 47 source.start((offsetIdx * LENGTH + offset) / context.sampleRate); | |
| 48 }); | |
| 49 | |
| 50 return gain; | |
| 51 }, | |
| 52 | |
| 53 createExpectedBuffers: function(context) { | |
| 54 return context.createBuffer(1, gTest.length, context.sampleRate); | |
| 55 }, | |
| 56 }; | |
| 57 | |
| 58 runTest(); | |
| 59 </script> | |
| 60 </pre> | |
| 61 </body> | |
| 62 </html> |
