dom/media/webaudio/test/test_disconnectAudioParam.html
author Ting-Yu Lin <tlin@mozilla.com>
Sat, 01 Apr 2023 04:17:05 +0000
changeset 658805 7437637d0b5c2745440bfeba4adb64689d24044f
parent 491143 3b3c5e0e1bc4a58d8a7d5718745cc41153e06a76
permissions -rw-r--r--
Bug 1055894 - Add GetLogicalNormalRect() and adapt some callers of GetNormalRect(). r=emilio This patch makes the API nicer, and shouldn't change the behavior. Differential Revision: https://phabricator.services.mozilla.com/D174344

<!DOCTYPE HTML>
<html>
  <head>
    <title>Test whether we can disconnect an AudioParam</title>
    <script src="/tests/SimpleTest/SimpleTest.js"></script>
    <script type="text/javascript" src="webaudio.js"></script>
    <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
  </head>
  <body>
    <pre id="test">
      <script class="testbody" type="text/javascript">
      var gTest = {
        length: 256,
        numberOfChannels: 1,
        createGraph(context) {
    var sourceBuffer = context.createBuffer(1, 256, context.sampleRate);
    var data = sourceBuffer.getChannelData(0);
    for (var j = 0; j < data.length; j++) {
        data[j] = 1;
    }

    var source = context.createBufferSource();
    source.buffer = sourceBuffer;

    var half = context.createGain();
    var gain1 = context.createGain();
    var gain2 = context.createGain();

    half.gain.value = 0.5;

    source.connect(gain1);
    gain1.connect(gain2);
    source.connect(half);

    half.connect(gain1.gain);
    half.connect(gain2.gain);

    half.disconnect(gain2.gain);

    source.start();

    return gain2;
  },
        createExpectedBuffers(context) {
    expectedBuffer = context.createBuffer(1, 256, context.sampleRate);
    for (var i = 0; i < 256; ++i) {
      expectedBuffer.getChannelData(0)[i] = 1.5;
    }

    return expectedBuffer;
  }
      };

      runTest();
      </script>
    </pre>
  </body>
</html>