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comparison: content/media/webaudio/test/test_bug956489.html
content/media/webaudio/test/test_bug956489.html
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| -1:000000000000 | 0:a2760ebf4be6 |
|---|---|
| 1 <!DOCTYPE HTML> | |
| 2 <html> | |
| 3 <head> | |
| 4 <title>Test when and currentTime are in the same coordinate system</title> | |
| 5 <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> | |
| 6 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> | |
| 7 </head> | |
| 8 <body> | |
| 9 <pre id="test"> | |
| 10 <script class="testbody" type="text/javascript"> | |
| 11 | |
| 12 SimpleTest.waitForExplicitFinish(); | |
| 13 addLoadEvent(function() { | |
| 14 var freq = 330; | |
| 15 | |
| 16 var context = new AudioContext(); | |
| 17 | |
| 18 var buffer = context.createBuffer(1, context.sampleRate / freq, context.sampleRate); | |
| 19 for (var i = 0; i < buffer.length; ++i) { | |
| 20 buffer.getChannelData(0)[i] = Math.sin(2 * Math.PI * i / buffer.length); | |
| 21 } | |
| 22 | |
| 23 var source = context.createBufferSource(); | |
| 24 source.loop = true; | |
| 25 source.buffer = buffer; | |
| 26 | |
| 27 setTimeout(function () { | |
| 28 var finished = false; | |
| 29 | |
| 30 source.start(context.currentTime); | |
| 31 var processor = context.createScriptProcessor(256, 1, 1); | |
| 32 processor.onaudioprocess = function (e) { | |
| 33 if (finished) return; | |
| 34 var c = e.inputBuffer.getChannelData(0); | |
| 35 var result = true; | |
| 36 | |
| 37 for (var i = 0; i < buffer.length; ++i) { | |
| 38 if (Math.abs(c[i] - buffer.getChannelData(0)[i]) > 1e-9) { | |
| 39 result = false; | |
| 40 break; | |
| 41 } | |
| 42 } | |
| 43 finished = true; | |
| 44 ok(result, "when and currentTime are in same time coordinate system"); | |
| 45 SimpleTest.finish(); | |
| 46 } | |
| 47 processor.connect(context.destination); | |
| 48 source.connect(processor); | |
| 49 }, 500); | |
| 50 }); | |
| 51 | |
| 52 </script> | |
| 53 </pre> | |
| 54 </body> | |
| 55 </html> |
