| <!DOCTYPE html> |
| <!-- |
| This is a very basic test to make sure testRunner.setAudioData() works correctly. |
| It generates a 2 seconds long stereo result @44.1KHz |
| The left channel will be a 880Hz tone, while the right will be 440Hz. |
| --> |
| <html> |
| <head> |
| <title> |
| test-basic.html |
| </title> |
| <script src="../resources/testharness.js"></script> |
| <script src="../resources/testharnessreport.js"></script> |
| <script src="resources/audit-util.js"></script> |
| <script src="resources/audit.js"></script> |
| <script src="resources/audio-file-utils.js"></script> |
| </head> |
| <body> |
| <script id="layout-test-code"> |
| let audit = Audit.createTaskRunner(); |
| |
| let sampleRate = 44100.0; |
| let lengthInSeconds = 2; |
| |
| function generateSinWave(audioBuffer) { |
| let n = audioBuffer.length; |
| let channelL = audioBuffer.getChannelData(0); |
| let channelR = audioBuffer.getChannelData(1); |
| let sampleRate = audioBuffer.sampleRate; |
| |
| for (let i = 0; i < n; ++i) { |
| channelL[i] = Math.sin(880.0 * 2.0 * Math.PI * i / sampleRate); |
| channelR[i] = Math.sin(440.0 * 2.0 * Math.PI * i / sampleRate); |
| } |
| } |
| |
| audit.define( |
| { |
| label: 'test', |
| description: |
| 'Basic audio test infrastructure: testRunner.setAudioData()' |
| }, |
| (task, should) => { |
| if (!window.testRunner) { |
| should(!window.testRunner, 'window.testRunner is defined') |
| .beTrue(); |
| task.done(); |
| return; |
| } |
| |
| let context = new AudioContext(); |
| let audioBuffer = context.createBuffer( |
| 2, lengthInSeconds * sampleRate, sampleRate); |
| |
| generateSinWave(audioBuffer); |
| |
| let audioData = createAudioData(audioBuffer); |
| testRunner.setAudioData(audioData); |
| |
| testRunner.notifyDone(); |
| task.done(); |
| }); |
| |
| audit.run(); |
| </script> |
| </body> |
| </html> |
