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| 1 <!doctype html> | 1 <!doctype html> |
| 2 <html> | 2 <html> |
| 3 <head> | 3 <head> |
| 4 <title>Test AudioBufferSourceNode With Looping a Single-Sample Buffer</title
> | 4 <title>Test AudioBufferSourceNode With Looping a Single-Sample Buffer</title
> |
| 5 <script src="../../resources/js-test.js"></script> | 5 <script src="../../resources/testharness.js"></script> |
| 6 <script src="../../resources/testharnessreport.js"></script> |
| 6 <script src="../resources/audit-util.js"></script> | 7 <script src="../resources/audit-util.js"></script> |
| 7 <script src="../resources/audio-testing.js"></script> | 8 <script src="../resources/audit.js"></script> |
| 8 </head> | 9 </head> |
| 9 | 10 |
| 10 <body> | 11 <body> |
| 11 <script> | 12 <script> |
| 12 description("Test AudioBufferSourceNode With Looping a Single-Sample Buffe
r"); | 13 let audit = Audit.createTaskRunner(); |
| 13 | 14 |
| 14 var context; | 15 let sampleRate = 44100; |
| 15 var source; | 16 let testDurationSamples = 1000; |
| 16 var buffer; | |
| 17 var renderedData; | |
| 18 | 17 |
| 19 var sampleRate = 44100; | 18 audit.define("one-sample-loop", function (task, should) { |
| 20 var testDurationSamples = 1000; | 19 // Create the offline context for the test. |
| 20 let context = new OfflineAudioContext(1, testDurationSamples, |
| 21 sampleRate); |
| 21 | 22 |
| 22 function checkResult (event) { | 23 // Create the single sample buffer |
| 23 var success = true; | 24 let buffer = createConstantBuffer(context, 1, 1); |
| 24 | 25 |
| 25 renderedData = event.renderedBuffer.getChannelData(0); | 26 // Create the source and connect it to the destination |
| 26 // Check that the rendered data is all ones, like the buffer source. | 27 let source = context.createBufferSource(); |
| 27 for (k = 0; k < renderedData.length; ++k) { | 28 source.buffer = buffer; |
| 28 if (renderedData[k] != 1) { | 29 source.loop = true; |
| 29 success = false; | 30 source.connect(context.destination); |
| 30 testFailed("Expected all ones, but sample " + k + " is " + ren
deredData[k]); | 31 source.start(); |
| 31 break; | |
| 32 } | |
| 33 } | |
| 34 if (success) | |
| 35 testPassed("All samples equal to 1"); | |
| 36 finishJSTest(); | |
| 37 } | |
| 38 | 32 |
| 39 function runTest() { | 33 // Render it! |
| 40 window.jsTestIsAsync = true; | 34 context.startRendering() |
| 35 .then(function(audioBuffer) { |
| 36 should(audioBuffer.getChannelData(0), "Rendered data") |
| 37 .beConstantValueOf(1); |
| 38 }) |
| 39 .then(task.done.bind(task));; |
| 40 }); |
| 41 | 41 |
| 42 // Create the offline context for the test. | 42 audit.run(); |
| 43 context = new OfflineAudioContext(1, testDurationSamples, sampleRate); | |
| 44 context.oncomplete = checkResult; | |
| 45 | |
| 46 // Create the single sample buffer | |
| 47 buffer = createConstantBuffer(context, 1, 1); | |
| 48 | |
| 49 // Create the source and connect it to the destination | |
| 50 source = context.createBufferSource(); | |
| 51 source.buffer = buffer; | |
| 52 source.loop = true; | |
| 53 source.connect(context.destination); | |
| 54 source.start(); | |
| 55 | |
| 56 // Render it! | |
| 57 context.startRendering(); | |
| 58 } | |
| 59 | |
| 60 runTest(); | |
| 61 succesfullyParsed = true; | |
| 62 </script> | 43 </script> |
| 63 </body> | 44 </body> |
| 64 </html> | 45 </html> |
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Chromium Code Reviews
Issue 2591383002:
Convert audiobuffersource-one-sample-loop to testharness (Closed)
