dom/media/webaudio/test/test_delayNodePassThrough.html
author Jim Blandy <jimb@red-bean.com>
Thu, 30 Mar 2023 16:23:26 +0000
changeset 658645 9754c55103ef774188e1e813a3ef5d4f5487b35c
parent 491143 3b3c5e0e1bc4a58d8a7d5718745cc41153e06a76
permissions -rw-r--r--
Bug 1825449: Don't warn on mismatched WebGPU error scope push/pop. r=webgpu-reviewers,teoxoy In the graphics process, don't warn on receipt of mismatched DevicePushErrorScope/DevicePopErrorScope messages, since these can be easily caused by ordinary content and do not indicate anything wrong with Firefox. Differential Revision: https://phabricator.services.mozilla.com/D174045

<!DOCTYPE HTML>
<html>
<head>
  <title>Test DelayNode</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<pre id="test">
<script src="webaudio.js" type="text/javascript"></script>
<script class="testbody" type="text/javascript">

var gTest = {
  length: 4096,
  numberOfChannels: 1,
  createGraph(context) {
    var source = context.createBufferSource();

    var delay = context.createDelay();

    source.buffer = this.buffer;

    source.connect(delay);

    delay.delayTime.value = 0.5;

    // Delay the source stream by 2048 frames
    delay.delayTime.value = 2048 / context.sampleRate;

    var delayWrapped = SpecialPowers.wrap(delay);
    ok("passThrough" in delayWrapped, "DelayNode should support the passThrough API");
    delayWrapped.passThrough = true;

    source.start(0);
    return delay;
  },
  createExpectedBuffers(context) {
    this.buffer = context.createBuffer(1, 2048, context.sampleRate);
    for (var i = 0; i < 2048; ++i) {
      this.buffer.getChannelData(0)[i] = Math.sin(440 * 2 * Math.PI * i / context.sampleRate);
    }
    var silence = context.createBuffer(1, 2048, context.sampleRate);

    return [this.buffer, silence];
  },
};

runTest();

</script>
</pre>
</body>
</html>