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author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
tree | 10027f336435511475e392454359edea8e25895d /dom/media/webaudio/test/test_audioParamSetCurveAtTime.html | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
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Add m-esr52 at 52.6.0
Diffstat (limited to 'dom/media/webaudio/test/test_audioParamSetCurveAtTime.html')
-rw-r--r-- | dom/media/webaudio/test/test_audioParamSetCurveAtTime.html | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/dom/media/webaudio/test/test_audioParamSetCurveAtTime.html b/dom/media/webaudio/test/test_audioParamSetCurveAtTime.html new file mode 100644 index 000000000..bcb655b52 --- /dev/null +++ b/dom/media/webaudio/test/test_audioParamSetCurveAtTime.html @@ -0,0 +1,54 @@ +<!DOCTYPE HTML> +<html> +<head> + <title>Test AudioParam.linearRampToValue</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 T0 = 0; + +var gTest = { + length: 2048, + numberOfChannels: 1, + createGraph: function(context) { + var source = context.createConstantSource(); + + var gain = context.createGain(); + gain.gain.setValueCurveAtTime(this.curve, T0, this.duration); + source.connect(gain); + + source.start(0); + return gain; + }, + createExpectedBuffers: function(context) { + this.duration = 1024 / context.sampleRate; + this.curve = new Float32Array([1.0, 0.5, 0.75, 0.25]); + var expectedBuffer = context.createBuffer(1, 2048, context.sampleRate); + var data = expectedBuffer.getChannelData(0); + var step = 1024 / 3; + for (var i = 0; i < 2048; ++i) { + if (i < step) { + data[i] = 1.0 - 0.5*i/step; + } else if (i < 2*step) { + data[i] = 0.5 + 0.25*(i - step)/step; + } else if (i < 3*step) { + data[i] = 0.75 - 0.5*(i - 2*step)/step; + } else { + data[i] = 0.25; + } + } + return expectedBuffer; + }, +}; + +runTest(); + +</script> +</pre> +</body> +</html> |