LayoutTests/webaudio/delaynode.html

   1 <!DOCTYPE html>
   2
   3 <html>
   4 <head>
   5 <script src="../fast/js/resources/js-test-pre.js"></script>
   6 <script src="resources/delay-testing.js"></script>
   7 </head>
   8
   9 <body>
  10
  11 <div id="description"></div>
  12 <div id="console"></div>
  13
  14 <script>
  15 description("Tests basic functionality of DelayNode.");
  16
  17 function runTest() {
  18     if (window.layoutTestController) {
  19         layoutTestController.overridePreference("WebKitWebAudioEnabled", "1");
  20         layoutTestController.dumpAsText();
  21         layoutTestController.waitUntilDone();
  22     }
  23
  24     window.jsTestIsAsync = true;
  25
  26     // Create offline audio context.
  27     var context = new webkitAudioContext(1, sampleRate * renderLengthSeconds, sampleRate);
  28     var toneBuffer = createToneBuffer(context, 20, 20 * toneLengthSeconds, sampleRate); // 20Hz tone
  29
  30     var bufferSource = context.createBufferSource();
  31     bufferSource.buffer = toneBuffer;
  32
  33     var delay = context.createDelayNode();
  34     delay.delayTime.value = delayTimeSeconds;
  35
  36     bufferSource.connect(delay);
  37     delay.connect(context.destination);
  38     bufferSource.noteOn(0);
  39
  40     context.oncomplete = checkDelayedResult(toneBuffer);
  41     context.startRendering();
  42 }
  43
  44 runTest();
  45
  46 </script>
  47
  48 <script src="../fast/js/resources/js-test-post.js"></script>
  49 </body>
  50 </html>