audioworkletglobalscope-timing-info.https.html

Enable keyboard shortcuts

This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /webaudio/the-audio-api/the-audioworklet-interface/audioworkletglobalscope-timing-info.https.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

  <head>

    <title>

      Test currentTime and currentFrame in AudioWorkletGlobalScope

    </title>

    <script src="/resources/testharness.js"></script>

    <script src="/resources/testharnessreport.js"></script>

  </head>

  <body>

    <script>

      promise_test(async () => {

        const sampleRate = 48000;

        const renderLength = 512;

        const context = new OfflineAudioContext(1, renderLength, sampleRate);

        const filePath = 'processors/timing-info-processor.js';

        await context.audioWorklet.addModule(filePath);

        const 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].forEach(suspendFrame => {

          context.suspend(suspendFrame / sampleRate).then(() => {

            portWorkletNode.port.onmessage = (event) => {

              assert_equals(

                  event.data.currentFrame,

                  suspendFrame,

                  'currentFrame from the processor at ' + suspendFrame);

              assert_equals(

                  event.data.currentTime,

                  context.currentTime,

                  'currentTime from the processor at ' +

                      context.currentTime);

              context.resume();

};

            portWorkletNode.port.postMessage('query-timing-info');

});

});

        await context.startRendering();

      }, 'Check the timing information from AudioWorkletProcessor');

    </script>

  </body>

</html>