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| author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
|---|---|---|
| committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
| commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
| tree | 10027f336435511475e392454359edea8e25895d /dom/media/webaudio/test/test_audioBufferSourceNodeOffset.html | |
| parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
| download | UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip | |
Add m-esr52 at 52.6.0
Diffstat (limited to 'dom/media/webaudio/test/test_audioBufferSourceNodeOffset.html')
| -rw-r--r-- | dom/media/webaudio/test/test_audioBufferSourceNodeOffset.html | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/dom/media/webaudio/test/test_audioBufferSourceNodeOffset.html b/dom/media/webaudio/test/test_audioBufferSourceNodeOffset.html new file mode 100644 index 000000000..b7a16634e --- /dev/null +++ b/dom/media/webaudio/test/test_audioBufferSourceNodeOffset.html @@ -0,0 +1,55 @@ +<!DOCTYPE HTML> +<html> +<head> + <title>Test the offset property on AudioBufferSourceNode</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 fuzz = 0.3; + +if (navigator.platform.startsWith("Mac")) { + // bug 895720 + fuzz = 0.6; +} + +SimpleTest.waitForExplicitFinish(); +addLoadEvent(function() { + var samplesFromSource = 0; + var context = new AudioContext(); + var sp = context.createScriptProcessor(256); + + sp.onaudioprocess = function(e) { + samplesFromSource += e.inputBuffer.length; + } + + var buffer = context.createBuffer(1, context.sampleRate, context.sampleRate); + for (var i = 0; i < context.sampleRate; ++i) { + buffer.getChannelData(0)[i] = Math.sin(440 * 2 * Math.PI * i / context.sampleRate); + } + + var source = context.createBufferSource(); + + source.onended = function(e) { + // The timing at which the audioprocess and ended listeners are called can + // change, hence the fuzzy equal here. + var errorRatio = samplesFromSource / (0.5 * context.sampleRate); + ok(errorRatio > (1.0 - fuzz) && errorRatio < (1.0 + fuzz), + "Correct number of samples received (expected: " + + (0.5 * context.sampleRate) + ", actual: " + samplesFromSource + ")."); + SimpleTest.finish(); + }; + + source.buffer = buffer; + source.connect(sp); + source.start(0, 0.5); +}); + +</script> +</pre> +</body> +</html> |