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| 1 <!DOCTYPE html> | 1 <!DOCTYPE html> |
| 2 <html> | 2 <html> |
| 3 <head> |
| 4 <title> |
| 5 audiobuffersource-playbackrate-modulation.html |
| 6 </title> |
| 7 <script src="../../resources/testharness.js"></script> |
| 8 <script src="../../resources/testharnessreport.js"></script> |
| 9 <script src="../resources/audit-util.js"></script> |
| 10 <script src="../resources/audit.js"></script> |
| 11 <script src="../resources/audiobuffersource-testing.js"></script> |
| 12 <script src="../resources/buffer-loader.js"></script> |
| 13 </head> |
| 14 <body> |
| 15 <script id="layout-test-code"> |
| 16 let sampleRate = 44100; |
| 17 let duration = 0.25; |
| 3 | 18 |
| 4 <head> | 19 let context = |
| 5 <script src="../../resources/testharness.js"></script> | 20 new OfflineAudioContext(1, sampleRate * duration, sampleRate); |
| 6 <script src="../../resources/testharnessreport.js"></script> | 21 let referenceBuffer; |
| 7 <script src="../resources/audit-util.js"></script> | |
| 8 <script src="../resources/audit.js"></script> | |
| 9 <script src="../resources/audiobuffersource-testing.js"></script> | |
| 10 <script src="../resources/buffer-loader.js"></script> | |
| 11 </head> | |
| 12 | 22 |
| 13 <body> | 23 let audit = Audit.createTaskRunner(); |
| 14 <script> | |
| 15 | 24 |
| 16 var sampleRate = 44100; | 25 // Task: Load the reference file asynchronously. In order to create a new |
| 17 var duration = 0.25; | 26 // reference file, use the task 'generate-reference' below. |
| 27 audit.define('load-reference', (task, should) => { |
| 28 let loader = new BufferLoader( |
| 29 context, ['audiobuffersource-playbackrate-modulation-expected.wav'], |
| 30 function(bufferList) { |
| 31 referenceBuffer = bufferList[0]; |
| 32 should(true, 'Loaded reference file').beTrue(); |
| 33 task.done(); |
| 34 }); |
| 18 | 35 |
| 19 var context = new OfflineAudioContext(1, sampleRate * duration, sampleRate); | 36 loader.load(); |
| 20 var referenceBuffer; | 37 }); |
| 21 | |
| 22 var audit = Audit.createTaskRunner(); | |
| 23 | |
| 24 // Task: Load the reference file asynchronously. In order to create a new | |
| 25 // reference file, use the task 'generate-reference' below. | |
| 26 audit.define('load-reference', (task, should) => { | |
| 27 var loader = new BufferLoader(context, [ | |
| 28 'audiobuffersource-playbackrate-modulation-expected.wav' | |
| 29 ], function (bufferList) { | |
| 30 referenceBuffer = bufferList[0]; | |
| 31 should(true, "Loaded reference file").beTrue(); | |
| 32 task.done(); | |
| 33 }); | |
| 34 | |
| 35 loader.load(); | |
| 36 }); | |
| 37 | 38 |
| 38 | 39 |
| 39 // Task: Render the actual buffer and compare with the reference. | 40 // Task: Render the actual buffer and compare with the reference. |
| 40 audit.define('generate-verify', (task, should) => { | 41 audit.define('generate-verify', (task, should) => { |
| 41 | |
| 42 // With this setting, the playback rate will be changing continuously and | |
| 43 // repeatedly within the range of [0, 200] around 100Hz, based on the | |
| 44 // input from the oscillator. | |
| 45 createSawtoothWithModulation(context, 'playbackRate', 100, 100); | |
| 46 | 42 |
| 47 context.startRendering().then(function (renderedBuffer) { | 43 // With this setting, the playback rate will be changing continuously |
| 48 var actual = renderedBuffer.getChannelData(0); | 44 // and repeatedly within the range of [0, 200] around 100Hz, based on |
| 49 var expected = referenceBuffer.getChannelData(0); | 45 // the input from the oscillator. |
| 46 createSawtoothWithModulation(context, 'playbackRate', 100, 100); |
| 50 | 47 |
| 51 // Compare two buffers with arbitrary (yet reasonable) constraints. | 48 context.startRendering() |
| 52 // There parameters are determined by try bot experiments. | 49 .then(function(renderedBuffer) { |
| 53 compareBuffersWithConstraints(should, actual, expected, { | 50 let actual = renderedBuffer.getChannelData(0); |
| 54 prefix: "Verify", | 51 let expected = referenceBuffer.getChannelData(0); |
| 55 thresholdSNR: 92.72, | |
| 56 thresholdDiffULP: 0.985, | |
| 57 thresholdDiffCount: 0, | |
| 58 bitDepth: 16 | |
| 59 }); | |
| 60 | 52 |
| 61 var filename = 'audiobuffersource-playbackrate-modulation-actual.wav'; | 53 // Compare two buffers with arbitrary (yet reasonable) |
| 62 if (downloadAudioBuffer(renderedBuffer, filename)) | 54 // constraints. There parameters are determined by try bot |
| 63 should(true, "Saved reference file").message(filename, ""); | 55 // experiments. |
| 64 }).then(() => task.done()); | 56 compareBuffersWithConstraints(should, actual, expected, { |
| 65 }); | 57 prefix: 'Verify', |
| 58 thresholdSNR: 92.72, |
| 59 thresholdDiffULP: 0.985, |
| 60 thresholdDiffCount: 0, |
| 61 bitDepth: 16 |
| 62 }); |
| 66 | 63 |
| 67 audit.run(); | 64 let filename = |
| 68 </script> | 65 'audiobuffersource-playbackrate-modulation-actual.wav'; |
| 69 </body> | 66 if (downloadAudioBuffer(renderedBuffer, filename)) |
| 67 should(true, 'Saved reference file').message(filename, ''); |
| 68 }) |
| 69 .then(() => task.done()); |
| 70 }); |
| 70 | 71 |
| 72 audit.run(); |
| 73 </script> |
| 74 </body> |
| 71 </html> | 75 </html> |
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Chromium Code Reviews
Issue 2895963003:
Apply layout-test-tidy to LayoutTests/webaudio (Closed)
