The Tor Browser: content/media/webaudio/test/test_audioBufferSourceNodeLoop.html@6474c204b198 (annotated)

content/media/webaudio/test/test_audioBufferSourceNodeLoop.html@6474c204b198 (annotated)

Wed, 31 Dec 2014 06:09:35 +0100

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 <!DOCTYPE HTML>
 <html>
 <head>
   <title>Test AudioBufferSourceNode looping</title>
   <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
   <script type="text/javascript" src="webaudio.js"></script>
   <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
 </head>
 <body>
 <pre id="test">
 <script class="testbody" type="text/javascript">
 var gTest = {
   length: 2048 * 4,
   numberOfChannels: 1,
   createGraph: function(context) {
     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 source = context.createBufferSource();
     source.buffer = buffer;
     source.start(0);
     source.loop = true;
     return source;
   },
   createExpectedBuffers: function(context) {
     var expectedBuffer = context.createBuffer(1, 2048 * 4, context.sampleRate);
     for (var i = 0; i < 4; ++i) {
       for (var j = 0; j < 2048; ++j) {
         expectedBuffer.getChannelData(0)[i * 2048 + j] = Math.sin(440 * 2 * Math.PI * j / context.sampleRate);
       }
     }
     return expectedBuffer;
   },
 };
 runTest();
 </script>
 </pre>
 </body>
 </html>