| <!DOCTYPE html> |
| <html> |
| <head> |
| <title> |
| Test sampleRate in AudioWorkletGlobalScope |
| </title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/webaudio/resources/audit.js"></script> |
| </head> |
| <body> |
| <script id="layout-test-code"> |
| let audit = Audit.createTaskRunner(); |
| |
| setup(() => { |
| let sampleRate = 48000; |
| let renderLength = 512; |
| let context = new OfflineAudioContext(1, renderLength, sampleRate); |
| |
| let filePath = 'processors/one-pole-processor.js'; |
| |
| // Without rendering the context, attempt to access |sampleRate| in the |
| // global scope as soon as it is created. |
| audit.define( |
| 'Query |sampleRate| upon AudioWorkletGlobalScope construction', |
| (task, should) => { |
| let onePoleFilterNode = |
| new AudioWorkletNode(context, 'one-pole-filter'); |
| let frequencyParam = onePoleFilterNode.parameters.get('frequency'); |
| |
| should(frequencyParam.maxValue, |
| 'frequencyParam.maxValue') |
| .beEqualTo(0.5 * context.sampleRate); |
| |
| task.done(); |
| }); |
| |
| context.audioWorklet.addModule(filePath).then(() => { |
| audit.run(); |
| }); |
| }); |
| </script> |
| </body> |
| </html> |
