The Tor Browser: content/media/webaudio/test/test_audioBufferSourceNodeNeutered.html@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 <!DOCTYPE HTML>

     2 <html>

     3 <head>

     4   <title>Test AudioBufferSourceNode when an AudioBuffer's getChanneData array is neutered</title>

     5   <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>

     6   <script type="text/javascript" src="webaudio.js"></script>

     7   <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />

     8 </head>

     9 <body>

    10 <pre id="test">

    11 <script class="testbody" type="text/javascript">

    13 function createGarbage() {

    14   var s = [];

    15   for (var i = 0; i < 10000000; ++i) {

    16     s.push(i);

    17   }

    18   var sum = 0;

    19   for (var i = 0; i < s.length; ++i) {

    20     sum += s[i];

    21   }

    22   return sum;

    23 }

    25 var worker = new Worker("audioBufferSourceNodeNeutered_worker.js");

    27 var gTest = {

    28   length: 2048,

    29   numberOfChannels: 1,

    30   createGraph: function(context) {

    31     var buffer = context.createBuffer(1, 10000000, context.sampleRate);

    32     var data = buffer.getChannelData(0);

    33     for (var i = 0; i < data.length; ++i) {

    34       data[i] = (i%100)/100 - 0.5;

    35     }

    37     // Neuter the buffer now

    38     var data = buffer.getChannelData(0).buffer;

    39     worker.postMessage(data, [data]);

    40     // Create garbage and GC to replace the buffer data with garbage

    41     SpecialPowers.gc();

    42     createGarbage();

    43     SpecialPowers.gc();

    45     var source = context.createBufferSource();

    46     source.buffer = buffer;

    47     source.start();

    48     // This should play silence

    49     return source;

    50   },

    51 };

    53 runTest();

    55 </script>

    56 </pre>

    57 </body>

    58 </html>

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