dom/media/webaudio/test/test_disconnectAudioParamFromOutput.html
author Itiel <itiel_yn8@walla.com>
Sat, 01 Apr 2023 16:53:46 +0000
changeset 658822 e7000d363b5a18e09f21286292287cddd4f79b3a
parent 491143 3b3c5e0e1bc4a58d8a7d5718745cc41153e06a76
permissions -rw-r--r--
Bug 1823513 - Adjust "Destination" dropdown arrow position on the print dialog r=julienw,sfoster Differential Revision: https://phabricator.services.mozilla.com/D173074

<!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: 2,
        createGraph(context) {
    var sourceBuffer = context.createBuffer(2, 256, context.sampleRate);
    for (var i = 1; i <= 2; i++) {
      var data = sourceBuffer.getChannelData(i-1);
      for (var j = 0; j < data.length; j++) {
          data[j] = i;
      }
    }

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

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

    var half = context.createGain();
    var gain1 = context.createGain();
    var gain2 = context.createGain();
    var splitter = context.createChannelSplitter(2);

    half.gain.value = 0.5;

    source.connect(gain1);
    gain1.connect(gain2);
    source.connect(half);
    half.connect(splitter);
    splitter.connect(gain1.gain, 0);
    splitter.connect(gain2.gain, 1);

    splitter.disconnect(gain2.gain, 1);

    source.start();

    return gain2;
  },
        createExpectedBuffers(context) {
    var expectedBuffer = context.createBuffer(2, 256, context.sampleRate);
    for (var i = 1; i <= 2; i++) {
      var data = expectedBuffer.getChannelData(i-1);
      for (var j = 0; j < data.length; j++) {
        data[j] = (i == 1) ? 1.5 : 3.0;
      }
    }

    return expectedBuffer;
  }
      };

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