third_party/WebKit/LayoutTests/webaudio/delaynode-maxdelay.html

   1 <!DOCTYPE html>
   2
   3 <html>
   4 <head>
   5 <script src="../resources/js-test.js"></script>
   6 <script src="resources/compatibility.js"></script>
   7 <script src="resources/audio-testing.js"></script>
   8 <script src="resources/delay-testing.js"></script>
   9 </head>
  10
  11 <body>
  12
  13 <div id="description"></div>
  14 <div id="console"></div>
  15
  16 <script>
  17 description("Tests basic functionality of DelayNode with a non-default max delay time.");
  18
  19 function runTest() {
  20     if (window.testRunner) {
  21         testRunner.dumpAsText();
  22         testRunner.waitUntilDone();
  23     }
  24
  25     window.jsTestIsAsync = true;
  26
  27     // Create offline audio context.
  28     var context = new OfflineAudioContext(1, sampleRate * renderLengthSeconds, sampleRate);
  29     var toneBuffer = createToneBuffer(context, 20, 20 * toneLengthSeconds, sampleRate); // 20Hz tone
  30
  31     var bufferSource = context.createBufferSource();
  32     bufferSource.buffer = toneBuffer;
  33
  34     // Create a delay node with an explicit max delay time (greater than the default of 1 second).
  35     var delay = context.createDelay(2);
  36     // Set the delay time to a value greater than the default max delay so we can verify the delay
  37     // is working for this case.
  38     delayTimeSeconds = 1.5;
  39     delay.delayTime.value = delayTimeSeconds;
  40
  41     bufferSource.connect(delay);
  42     delay.connect(context.destination);
  43     bufferSource.start(0);
  44
  45     context.oncomplete = checkDelayedResult(toneBuffer);
  46     context.startRendering();
  47 }
  48
  49 runTest();
  50
  51 </script>
  52
  53 </body>
  54 </html>