| <!doctype html> |
| <html> |
| <head> |
| <title> |
| Test AudioWorklet AudioParam Warning Messages |
| </title> |
| <script src="../../imported/w3c/web-platform-tests/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/worklet-test.js"></script> |
| </head> |
| <body> |
| <script id="layout-test-code"> |
| let audit = Audit.createTaskRunner(); |
| |
| audit.define( |
| { |
| label: 'AudioWorklet AudioParam', |
| description: 'Generate warnings if outside nominal range' |
| }, |
| (task, should) => { |
| // Any reasonable sample rate will work |
| let sampleRate = 16000; |
| let renderTime = 1; |
| let renderLength = renderTime * sampleRate; |
| let context = |
| new OfflineAudioContext(1, renderLength, sampleRate); |
| context.audioWorklet.addModule(NoiseGenWorkletUrl).then(() => { |
| let noiseGenerator = |
| new AudioWorkletNode(context, 'noise-generator'); |
| noiseGenerator.connect(context.destination); |
| let param = noiseGenerator.parameters.get('amplitude'); |
| // Set the value inside the nominal range; no warning should be |
| // generated. |
| param.value = .1; |
| // Set the value outside the nominal range to generate a |
| // warning. |
| param.value = 99; |
| |
| // Set up automation outside the nominal range to generate a |
| // warning. |
| param.setValueAtTime(-1, renderTime / 4); |
| param.linearRampToValueAtTime(5, renderTime); |
| |
| // Render; we don't care what the generated result is. |
| context.startRendering() |
| .then(() => { |
| should(true, 'Rendering succeeded').beTrue(); |
| }) |
| .then(() => task.done()); |
| }); |
| }); |
| |
| audit.run(); |
| </script> |
| </body> |
| </html> |
