content/media/webaudio/test/test_audioParamSetValueAtTime.html

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

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 06:09:35 +0100
changeset 0
6474c204b198
permissions
-rw-r--r--

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

michael@0 1 <!DOCTYPE HTML>
michael@0 2 <html>
michael@0 3 <head>
michael@0 4 <title>Test AudioParam.linearRampToValue</title>
michael@0 5 <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
michael@0 6 <script type="text/javascript" src="webaudio.js"></script>
michael@0 7 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
michael@0 8 </head>
michael@0 9 <body>
michael@0 10 <pre id="test">
michael@0 11 <script class="testbody" type="text/javascript">
michael@0 12
michael@0 13 var V0 = 0.1;
michael@0 14 var V1 = 0.9;
michael@0 15 var T0 = 0;
michael@0 16
michael@0 17 var gTest = {
michael@0 18 length: 2048,
michael@0 19 numberOfChannels: 1,
michael@0 20 createGraph: function(context) {
michael@0 21 var sourceBuffer = context.createBuffer(1, 2048, context.sampleRate);
michael@0 22 for (var i = 0; i < 2048; ++i) {
michael@0 23 sourceBuffer.getChannelData(0)[i] = 1;
michael@0 24 }
michael@0 25
michael@0 26 var source = context.createBufferSource();
michael@0 27 source.buffer = sourceBuffer;
michael@0 28
michael@0 29 var gain = context.createGain();
michael@0 30 gain.gain.value = 0;
michael@0 31 gain.gain.setValueAtTime(V0, 1024/context.sampleRate);
michael@0 32
michael@0 33 source.connect(gain);
michael@0 34
michael@0 35 source.start(0);
michael@0 36 return gain;
michael@0 37 },
michael@0 38 createExpectedBuffers: function(context) {
michael@0 39 var expectedBuffer = context.createBuffer(1, 2048, context.sampleRate);
michael@0 40 for (var i = 1024; i < 2048; ++i) {
michael@0 41 expectedBuffer.getChannelData(0)[i] = 0.1;
michael@0 42 }
michael@0 43 return expectedBuffer;
michael@0 44 },
michael@0 45 };
michael@0 46
michael@0 47 runTest();
michael@0 48
michael@0 49 </script>
michael@0 50 </pre>
michael@0 51 </body>
michael@0 52 </html>

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