test_decodeOpusTail.html

Enable keyboard shortcuts

<!DOCTYPE HTML>

<html>

<meta charset="utf-8">

<head>

  <title>Regression test to check that opus files don't have a tail at the end.</title>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

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

</head>

<body>

<pre id="test">

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

SimpleTest.waitForExplicitFinish();

// This gets a 1 second Opus file and decodes it to a buffer. The opus file is

// decoded at 48kHz, and the OfflineAudioContext is also at 48kHz, no resampling

// is taking place.

fetch('sweep-300-330-1sec.opus')

.then(function(response) { return response.arrayBuffer(); })

.then(function(buffer) {

  var off = new OfflineAudioContext(1, 128, 48000);

  off.decodeAudioData(buffer, function(decoded) {

    var pcm = decoded.getChannelData(0);

    is(pcm.length, 48000, "The length of the decoded file is correct.");

    SimpleTest.finish();

});

});

</script>