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<!DOCTYPE html>
<html>
<head>
<title>
Test currentTime and currentFrame 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();
let sampleRate = 48000;
let renderLength = 512;
let context = new OfflineAudioContext(1, renderLength, sampleRate);
let filePath = 'processors/timing-info-processor.js';
audit.define(
'Check the timing information from AudioWorkletProcessor',
(task, should) => {
let portWorkletNode =
new AudioWorkletNode(context, 'timing-info-processor');
portWorkletNode.connect(context.destination);
// Suspend at render quantum boundary and check the timing
// information between the main thread and the rendering thread.
[0, 128, 256, 384].map((suspendFrame) => {
context.suspend(suspendFrame/sampleRate).then(() => {
portWorkletNode.port.onmessage = (event) => {
should(event.data.currentFrame,
'currentFrame from the processor at ' + suspendFrame)
.beEqualTo(suspendFrame);
should(event.data.currentTime,
'currentTime from the processor at '
+ context.currentTime)
.beEqualTo(context.currentTime);
context.resume();
};
portWorkletNode.port.postMessage('query-timing-info');
});
});
context.startRendering().then(() => {
task.done();
});
});
context.audioWorklet.addModule(filePath).then(() => {
audit.run();
});
</script>
</body>
</html>
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