test_analyserNodePassThrough.html

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<html>

<head>

  <title>Test AnalyserNode with passthrough</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: 2048,

  numberOfChannels: 1,

  createGraph(context) {

    var source = context.createBufferSource();

    var analyser = context.createAnalyser();

    source.buffer = this.buffer;

    source.connect(analyser);

    var analyserWrapped = SpecialPowers.wrap(analyser);

    ok("passThrough" in analyserWrapped, "AnalyserNode should support the passThrough API");

    analyserWrapped.passThrough = true;

    source.start(0);

    return analyser;

},

  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);

    return [this.buffer];

},

};

runTest();

</script>

</pre>

</body>

</html>