Quelle test_pannerNode.html Sprache: HTML

products/sources/formale Sprachen/C/Firefox/dom/media/webaudio/test/test_pannerNode.html

<!DOCTYPE HTML>
<html>
<head>
  <title>Test PannerNode</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">

function near(a, b, msg) {
  ok(Math.abs(a - b) < 1e-4, msg);
}

SimpleTest.waitForExplicitFinish();
addLoadEvent(function() {
  var context = new AudioContext();
  var buffer = context.createBuffer(1, 2048, context.sampleRate);
  for (var i = 0; i < 2048; ++i) {
    buffer.getChannelData(0)[i] = Math.sin(440 * 2 * Math.PI * i / context.sampleRate);
  }

  var destination = context.destination;

  var source = context.createBufferSource();

  var panner = new PannerNode(context);

  source.buffer = buffer;

  source.connect(panner);
  panner.connect(destination);

  // Verify default values
  is(panner.panningModel, "equalpower", "Correct default value for panning model");
  is(panner.distanceModel, "inverse", "Correct default value for distance model");
  near(panner.refDistance, 1, "Correct default value for ref distance");
  near(panner.maxDistance, 10000, "Correct default value for max distance");
  near(panner.rolloffFactor, 1, "Correct default value for rolloff factor");
  near(panner.coneInnerAngle, 360, "Correct default value for cone inner angle");
  near(panner.coneOuterAngle, 360, "Correct default value for cone outer angle");
  near(panner.coneOuterGain, 0, "Correct default value for cone outer gain");
  is(panner.channelCount, 2, "panner node has 2 input channels by default");
  is(panner.channelCountMode, "clamped-max", "Correct channelCountMode for the panner node");
  is(panner.channelInterpretation, "speakers", "Correct channelCountInterpretation for the panner node");

  panner.setPosition(1, 1, 1);
  near(panner.positionX.value, 1, "setPosition sets AudioParam properly");
  near(panner.positionY.value, 1, "setPosition sets AudioParam properly");
  near(panner.positionZ.value, 1, "setPosition sets AudioParam properly");

  panner.setOrientation(0, 1, 0);
  near(panner.orientationX.value, 0, "setOrientation sets AudioParam properly");
  near(panner.orientationY.value, 1, "setOrientation sets AudioParam properly");
  near(panner.orientationZ.value, 0, "setOrientation sets AudioParam properly");

  source.start(0);
  SimpleTest.executeSoon(function() {
    source.stop(0);
    source.disconnect();
    panner.disconnect();

    SimpleTest.finish();
  });
});

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

Messung V0.5

¤ Dauer der Verarbeitung: 0.12 Sekunden (vorverarbeitet) ¤

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