audiobuffer-reuse.html

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This WPT test may be referenced by the following Test IDs:
- /webaudio/the-audio-api/the-audiobuffer-interface/audiobuffer-reuse.html - WPT Dashboard Interop Dashboard

<!doctype html>

<meta charset="utf-8">

<title>AudioBuffer can be reused between AudioBufferSourceNodes</title>

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

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

<script>

function render_audio_context() {

  let sampleRate = 44100;

  let context = new OfflineAudioContext(

      2, sampleRate *  0.1, sampleRate);

  let buf = context.createBuffer(1, 0.1 * sampleRate, context.sampleRate);

  let data = buf.getChannelData(0);

  data[0] = 0.5;

  data[1] = 0.25;

  let b1 = context.createBufferSource();

  b1.buffer = buf;

  b1.start();

  let b2 = context.createBufferSource();

  b2.buffer = buf;

  b2.start();

  let merger = context.createChannelMerger(2);

  b1.connect(merger, 0, 0);

  b2.connect(merger, 0, 1);

  merger.connect(context.destination);

  return context.startRendering();

promise_test(function() {

  return render_audio_context()

    .then(function(buffer) {

      assert_equals(buffer.getChannelData(0)[0], 0.5);

      assert_equals(buffer.getChannelData(1)[0], 0.5);

      assert_equals(buffer.getChannelData(0)[1], 0.25);

      assert_equals(buffer.getChannelData(1)[1], 0.25);

});

}, "AudioBuffer can be reused between AudioBufferSourceNodes");

</script>