<!DOCTYPE HTML>
<html>
<meta charset="utf-8">
<head>
  <title>Test MediaStreamAudioSourceNode doesn't get data from cross-origin media resources</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 class="testbody" type="text/javascript">
SimpleTest.waitForExplicitFinish();

var audio = new Audio("http://example.org:80/tests/dom/media/webaudio/test/small-shot.ogg");
audio.load();
var context = new AudioContext();
audio.onloadedmetadata = function() {
  var node = context.createMediaStreamSource(audio.mozCaptureStreamUntilEnded());
  var sp = context.createScriptProcessor(2048, 1);
  node.connect(sp);
  var nonzeroSampleCount = 0;
  var complete = false;
  var iterationCount = 0;

  // This test ensures we receive at least expectedSampleCount nonzero samples
  function processSamples(e) {
    if (complete) {
      return;
    }

    if (iterationCount == 0) {
      // Don't start playing the audio until the AudioContext stuff is connected
      // and running.
      audio.play();
    }
    ++iterationCount;

    var buf = e.inputBuffer.getChannelData(0);
    var nonzeroSamplesThisBuffer = 0;
    for (var i = 0; i < buf.length; ++i) {
      if (buf[i] != 0) {
        ++nonzeroSamplesThisBuffer;
      }
    }
    is(nonzeroSamplesThisBuffer, 0,
       "Checking all samples are zero");
    if (iterationCount >= 20) {
      SimpleTest.finish();
      complete = true;
    }
  }

  audio.oncanplaythrough = function() {
    sp.onaudioprocess = processSamples;
  };
}
</script>
</pre>
</body>
</html>
