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| 1 <!DOCTYPE html> | 1 <!DOCTYPE html> |
| 2 | 2 |
| 3 <!-- | 3 <!-- |
| 4 Test AudioBufferSourceNode supports 5.1 channel. | 4 Test AudioBufferSourceNode supports 5.1 channel. |
| 5 --> | 5 --> |
| 6 | 6 |
| 7 <html> | 7 <html> |
| 8 <head> | 8 <head> |
| 9 <script src="../../resources/testharness.js"></script> |
| 10 <script src="../../resources/testharnessreport.js"></script> |
| 9 <script src="../resources/audit-util.js"></script> | 11 <script src="../resources/audit-util.js"></script> |
| 10 <script src="../resources/audio-testing.js"></script> | 12 <script src="../resources/audit.js"></script> |
| 11 <script type="text/javascript" src="../resources/mix-testing.js"></script> | 13 <script src="../resources/mix-testing.js"></script> |
| 12 </head> | 14 </head> |
| 13 <body> | 15 <body> |
| 14 | 16 |
| 15 <script> | 17 <script> |
| 18 let audit = Audit.createTaskRunner(); |
| 19 let context; |
| 20 let expectedAudio; |
| 21 |
| 22 audit.define('initialize', (task, should) => { |
| 23 // Create offline audio context |
| 24 let sampleRate = 44100.0; |
| 25 should(() => { |
| 26 context = |
| 27 new OfflineAudioContext(6, sampleRate * toneLengthSeconds, sampleRate); |
| 28 }, 'Creating context for testing').notThrow(); |
| 29 should( |
| 30 Audit.loadFileFromUrl('audiobuffersource-multi-channels-expected.wav') |
| 31 .then(arrayBuffer => { |
| 32 context.decodeAudioData(arrayBuffer).then(audioBuffer => { |
| 33 expectedAudio = audioBuffer; |
| 34 }); |
| 35 }), |
| 36 'Fetching expected audio') |
| 37 .beResolved() |
| 38 .then(() => task.done()); |
| 16 | 39 |
| 17 function runTest() { | 40 }); |
| 18 if (!window.testRunner) | |
| 19 return; | |
| 20 | 41 |
| 21 testRunner.waitUntilDone(); | 42 audit.define( |
| 43 {label: 'test', description: 'AudioBufferSource with 5.1 buffer'}, |
| 44 (task, should) => { |
| 45 let toneBuffer = createToneBuffer(context, 440, toneLengthSeconds, 6); |
| 22 | 46 |
| 23 window.jsTestAsync = true; | 47 let source = context.createBufferSource(); |
| 48 source.buffer = toneBuffer; |
| 24 | 49 |
| 25 // Create offline audio context | 50 source.connect(context.destination); |
| 26 var sampleRate = 44100.0; | 51 source.start(0); |
| 27 var context = new OfflineAudioContext(6, sampleRate * toneLengthSeconds, sam
pleRate); | |
| 28 var toneBuffer = createToneBuffer(context, 440, toneLengthSeconds, 6); | |
| 29 | 52 |
| 30 var source = context.createBufferSource(); | 53 context.startRendering() |
| 31 source.buffer = toneBuffer; | 54 .then(renderedAudio => { |
| 55 // Compute a threshold based on the maximum error, |maxUlp|, in ULP. |
| 56 // This is experimentally determined. Assuming that the reference |
| 57 // file is a 16-bit wav file, the max values in the wave file |
| 58 // are +/- 32768. |
| 59 let maxUlp = 1; |
| 60 let threshold = maxUlp / 32768; |
| 32 | 61 |
| 33 source.connect(context.destination); | 62 for (let k = 0; k < renderedAudio.numberOfChannels; ++k) { |
| 34 source.start(0); | 63 should( |
| 64 renderedAudio.getChannelData(k), |
| 65 'Rendered audio for channel ' + k) |
| 66 .beCloseToArray( |
| 67 expectedAudio.getChannelData(k), |
| 68 {absoluteThreshold: threshold}); |
| 69 } |
| 70 }) |
| 71 .then(() => task.done()); |
| 72 }); |
| 35 | 73 |
| 36 context.oncomplete = finishAudioTest; | 74 audit.run(); |
| 37 context.startRendering(); | |
| 38 } | |
| 39 | |
| 40 runTest(); | |
| 41 </script> | 75 </script> |
| 42 | 76 |
| 43 </body> | 77 </body> |
| 44 </html> | 78 </html> |
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Chromium Code Reviews
Issue 2714853005:
Convert remaining AudioBufferSource tests to testharness (Closed)
