| OLD | NEW |
|---|
| 1 <!doctype html> | 1 <!DOCTYPE html> |
| 2 <html> | 2 <html> |
| 3 <head> | 3 <head> |
| 4 <title> |
| 5 Test getFloatFrequencyData With Zero Inputs |
| 6 </title> |
| 4 <script src="../../resources/testharness.js"></script> | 7 <script src="../../resources/testharness.js"></script> |
| 5 <script src="../../resources/testharnessreport.js"></script> | 8 <script src="../../resources/testharnessreport.js"></script> |
| 6 <script src="../resources/audit-util.js"></script> | 9 <script src="../resources/audit-util.js"></script> |
| 7 <script src="../resources/audit.js"></script> | 10 <script src="../resources/audit.js"></script> |
| 8 <title>Test getFloatFrequencyData With Zero Inputs</title> | |
| 9 </head> | 11 </head> |
| 12 <body> |
| 13 <script id="layout-test-code"> |
| 14 let sampleRate = 48000; |
| 10 | 15 |
| 11 <body> | 16 // Render enough data to run the test. |
| 12 <script> | 17 let renderFrames = 2 * 1024; |
| 13 var sampleRate = 48000; | 18 let renderDuration = renderFrames / sampleRate; |
| 14 | 19 |
| 15 // Render enough data to run the test. | 20 let audit = Audit.createTaskRunner(); |
| 16 var renderFrames = 2*1024; | |
| 17 var renderDuration = renderFrames / sampleRate; | |
| 18 | |
| 19 var audit = Audit.createTaskRunner(); | |
| 20 | 21 |
| 21 | 22 |
| 22 // Test that getFloatFrequencyData returns -Infinity when the input is all
-zeroes. | 23 // Test that getFloatFrequencyData returns -Infinity when the input is |
| 23 audit.define("zero input", (task, should) => { | 24 // all-zeroes. |
| 24 var context = new OfflineAudioContext(1, renderFrames, sampleRate); | 25 audit.define('zero input', (task, should) => { |
| 26 let context = new OfflineAudioContext(1, renderFrames, sampleRate); |
| 25 | 27 |
| 26 // Constant source of 0's. | 28 // Constant source of 0's. |
| 27 var source = context.createBufferSource(); | 29 let source = context.createBufferSource(); |
| 28 source.buffer = createConstantBuffer(context, 1, 0); | 30 source.buffer = createConstantBuffer(context, 1, 0); |
| 29 source.loop = true; | 31 source.loop = true; |
| 30 | 32 |
| 31 // Create analyser and use some non-default minDecibels value. | 33 // Create analyser and use some non-default minDecibels value. |
| 32 var analyser = context.createAnalyser(); | 34 let analyser = context.createAnalyser(); |
| 33 analyser.minDecibels = -123; | 35 analyser.minDecibels = -123; |
| 34 | 36 |
| 35 source.connect(analyser); | 37 source.connect(analyser); |
| 36 analyser.connect(context.destination); | 38 analyser.connect(context.destination); |
| 37 | 39 |
| 38 source.start(); | 40 source.start(); |
| 39 | 41 |
| 40 // Suspend after some number of frames and grab the float frequency data
. | 42 // Suspend after some number of frames and grab the float frequency |
| 41 context.suspend(1024 / sampleRate).then(function () { | 43 // data. |
| 42 var f = new Float32Array(analyser.frequencyBinCount); | 44 context.suspend(1024 / sampleRate) |
| 43 analyser.getFloatFrequencyData(f); | 45 .then(function() { |
| 46 let f = new Float32Array(analyser.frequencyBinCount); |
| 47 analyser.getFloatFrequencyData(f); |
| 44 | 48 |
| 45 should(f, "getFloatFrequencyData() with zero-valued input") | 49 should(f, 'getFloatFrequencyData() with zero-valued input') |
| 46 .beConstantValueOf(-Infinity); | 50 .beConstantValueOf(-Infinity); |
| 47 }).then(context.resume.bind(context)); | 51 }) |
| 52 .then(context.resume.bind(context)); |
| 48 | 53 |
| 49 context.startRendering().then(() => task.done()); | 54 context.startRendering().then(() => task.done()); |
| 50 }); | 55 }); |
| 51 | 56 |
| 52 audit.run(); | 57 audit.run(); |
| 53 | |
| 54 </script> | 58 </script> |
| 55 </body> | 59 </body> |
| 56 </html> | 60 </html> |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2895963003:
Apply layout-test-tidy to LayoutTests/webaudio (Closed)
