third_party/WebKit/LayoutTests/webaudio/audiobuffersource-late-start.html

   1 <!DOCTYPE html>
   2 <html>
   3
   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/late-start-testing.js"></script>
   9 </head>
  10
  11 <body>
  12   <script>
  13     description('Test the late call of start(0) of BufferSource.');
  14     window.jsTestIsAsync = true;
  15
  16     var audit = Audit.createTaskRunner();
  17
  18     var sampleRate = 44100;
  19
  20     // The long render length (30 seconds) is to make sure the |onstatechange|
  21     // event gets fired to start the source, which can take quite a bit of time.
  22     var renderLength = 30;
  23
  24     var context = new OfflineAudioContext(1, sampleRate * renderLength, sampleRate);
  25     var dcOffsetbuffer = createConstantBuffer(context, 1000, 1.0);
  26     var source = context.createBufferSource();
  27     source.buffer = dcOffsetbuffer;
  28
  29     // Test the buffer node is rendered correctly when the start time of start()
  30     // call is in the past in terms of the context time.
  31     runLateStartTest(audit, context, source);
  32
  33     successfullyParsed = true;
  34   </script>
  35 </body>
  36
  37 </html>