third_party/WebKit/LayoutTests/webaudio/note-grain-on-timing.html

   1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
   2 <html>
   3   <head>
   4     <script src="resources/compatibility.js"></script>
   5     <script src="resources/audio-testing.js"></script>
   6     <script src="resources/note-grain-on-testing.js"></script>
   7     <script src="../resources/js-test.js"></script>
   8   </head>
   9
  10   <body>
  11     <div id="description"></div>
  12     <div id="console"></div>
  13
  14     <script>
  15       description("Test timing of noteGrainOn.");
  16
  17       var squarePulseBuffer;
  18
  19       function checkResult(event) {
  20           var buffer = event.renderedBuffer;
  21           renderedData = buffer.getChannelData(0);
  22           var nSamples = renderedData.length;
  23
  24           var success = true;
  25
  26           var startEndFrames = findStartAndEndSamples(renderedData);
  27
  28           success = success && verifyStartAndEndFrames(startEndFrames);
  29
  30           if (success) {
  31               testPassed("noteGrainOn timing tests passed.");
  32           } else {
  33               testFailed("noteGrainOn timing tests failed.");
  34           }
  35
  36           finishJSTest();
  37       }
  38
  39       function runTest() {
  40           if (window.testRunner) {
  41               testRunner.dumpAsText();
  42               testRunner.waitUntilDone();
  43           }
  44
  45           window.jsTestIsAsync = true;
  46
  47           // Create offline audio context.
  48           context = new OfflineAudioContext(2, sampleRate * renderTime, sampleRate);
  49
  50           squarePulseBuffer = createSignalBuffer(context, function (k) { return 1 });
  51
  52           playAllGrains(context, squarePulseBuffer, numberOfTests);
  53
  54           context.oncomplete = checkResult;
  55           context.startRendering();
  56       }
  57
  58       runTest();
  59       successfullyParsed = true;
  60
  61     </script>
  62
  63   </body>
  64 </html>