The Tor Browser: content/media/webaudio/test/test_mediaStreamAudioSourceNodeCrossOrigin.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 <meta charset="utf-8">

     4 <head>

     5   <title>Test MediaStreamAudioSourceNode doesn't get data from cross-origin media resources</title>

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

    12 SimpleTest.waitForExplicitFinish();

    14 var audio = new Audio("http://example.org:80/tests/content/media/webaudio/test/small-shot.ogg");

    15 var context = new AudioContext();

    16 var node = context.createMediaStreamSource(audio.mozCaptureStreamUntilEnded());

    17 var sp = context.createScriptProcessor(2048, 1);

    18 node.connect(sp);

    19 var nonzeroSampleCount = 0;

    20 var complete = false;

    21 var iterationCount = 0;

    23 // This test ensures we receive at least expectedSampleCount nonzero samples

    24 function processSamples(e) {

    25   if (complete) {

    26     return;

    27   }

    29   if (iterationCount == 0) {

    30     // Don't start playing the audio until the AudioContext stuff is connected

    31     // and running.

    32     audio.play();

    33   }

    34   ++iterationCount;

    36   var buf = e.inputBuffer.getChannelData(0);

    37   var nonzeroSamplesThisBuffer = 0;

    38   for (var i = 0; i < buf.length; ++i) {

    39     if (buf[i] != 0) {

    40       ++nonzeroSamplesThisBuffer;

    41     }

    42   }

    43   is(nonzeroSamplesThisBuffer, 0,

    44      "Checking all samples are zero");

    45   if (iterationCount >= 20) {

    46     SimpleTest.finish();

    47     complete = true;

    48   }

    49 }

    51 audio.oncanplaythrough = function() {

    52   sp.onaudioprocess = processSamples;

    53 };

    54 </script>

    55 </pre>

    56 </body>

    57 </html>

The Tor Browser / file revision