The Tor Browser / file comparison
comparison: content/media/webaudio/test/test_audioBufferSourceNodeLoopStartEnd.html
content/media/webaudio/test/test_audioBufferSourceNodeLoopStartEnd.html
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:14327c759359 |
|---|---|
| 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"> | |
| 12 | |
| 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 } | |
| 21 | |
| 22 var source = context.createBufferSource(); | |
| 23 source.buffer = buffer; | |
| 24 source.start(0); | |
| 25 source.loop = true; | |
| 26 source.loopStart = buffer.duration * 0.25; | |
| 27 source.loopEnd = buffer.duration * 0.75; | |
| 28 return source; | |
| 29 }, | |
| 30 createExpectedBuffers: function(context) { | |
| 31 var expectedBuffer = context.createBuffer(1, 2048 * 4, context.sampleRate); | |
| 32 for (var i = 0; i < 1536; ++i) { | |
| 33 expectedBuffer.getChannelData(0)[i] = Math.sin(440 * 2 * Math.PI * i / context.sampleRate); | |
| 34 } | |
| 35 for (var i = 0; i < 6; ++i) { | |
| 36 for (var j = 512; j < 1536; ++j) { | |
| 37 expectedBuffer.getChannelData(0)[1536 + i * 1024 + j - 512] = Math.sin(440 * 2 * Math.PI * j / context.sampleRate); | |
| 38 } | |
| 39 } | |
| 40 for (var j = 7680; j < 2048 * 4; ++j) { | |
| 41 expectedBuffer.getChannelData(0)[j] = Math.sin(440 * 2 * Math.PI * (j - 7168) / context.sampleRate); | |
| 42 } | |
| 43 return expectedBuffer; | |
| 44 }, | |
| 45 }; | |
| 46 | |
| 47 runTest(); | |
| 48 | |
| 49 </script> | |
| 50 </pre> | |
| 51 </body> | |
| 52 </html> |
