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Diffstat (limited to 'dom/media/webaudio/test/test_bug972678.html')
-rw-r--r-- | dom/media/webaudio/test/test_bug972678.html | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/dom/media/webaudio/test/test_bug972678.html b/dom/media/webaudio/test/test_bug972678.html new file mode 100644 index 000000000..d0cb4e419 --- /dev/null +++ b/dom/media/webaudio/test/test_bug972678.html @@ -0,0 +1,62 @@ +<!DOCTYPE HTML> +<html> +<head> + <title>Test buffers do not interfere when scheduled in sequence</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 OFFSETS = [0.005, 0.01, 0.02, 0.03]; +var LENGTH = 128; + +var gTest = { + length: 128 * OFFSETS.length, + numberOfChannels: 1, + + createGraph: function(context) { + var gain = context.createGain(); + + // create a repeating sample + var repeatingSample = context.createBuffer(1, 2, context.sampleRate); + var c = repeatingSample.getChannelData(0); + for (var i = 0; i < repeatingSample.length; ++i) { + c[i] = i % 2 == 0 ? 1 : -1; + } + + OFFSETS.forEach(function (offset, offsetIdx) { + // Schedule a set of nodes to repeat the sample. + for (var i = 0; i < LENGTH; i += repeatingSample.length) { + var source = context.createBufferSource(); + source.buffer = repeatingSample; + source.connect(gain); + source.start((offsetIdx * LENGTH + i + offset) / context.sampleRate); + } + + buffer = context.createBuffer(1, LENGTH, context.sampleRate); + c = buffer.getChannelData(0); + for (var i = 0; i < buffer.length; ++i) { + c[i] = i % 2 == 0 ? -1 : 1; + } + + var source = context.createBufferSource(); + source.buffer = buffer; + source.connect(gain); + source.start((offsetIdx * LENGTH + offset) / context.sampleRate); + }); + + return gain; + }, + + createExpectedBuffers: function(context) { + return context.createBuffer(1, gTest.length, context.sampleRate); + }, +}; + +runTest(); +</script> +</pre> +</body> +</html> |