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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
| commit | 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch) | |
| tree | a31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /dom/media/webaudio/test/test_audioParamLinearRamp.html | |
| parent | Initial commit. (diff) | |
| download | firefox-esr-upstream/115.8.0esr.tar.xz firefox-esr-upstream/115.8.0esr.zip | |
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/media/webaudio/test/test_audioParamLinearRamp.html')
| -rw-r--r-- | dom/media/webaudio/test/test_audioParamLinearRamp.html | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/dom/media/webaudio/test/test_audioParamLinearRamp.html b/dom/media/webaudio/test/test_audioParamLinearRamp.html new file mode 100644 index 0000000000..5ec26467e8 --- /dev/null +++ b/dom/media/webaudio/test/test_audioParamLinearRamp.html @@ -0,0 +1,54 @@ +<!DOCTYPE HTML> +<html> +<head> + <title>Test AudioParam.linearRampToValue</title> + <script 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 V0 = 0.1; +var V1 = 0.9; +var T0 = 0; + +var gTest = { + length: 2048, + numberOfChannels: 1, + createGraph(context) { + var sourceBuffer = context.createBuffer(1, 2048, context.sampleRate); + for (var i = 0; i < 2048; ++i) { + sourceBuffer.getChannelData(0)[i] = 1; + } + + var source = context.createBufferSource(); + source.buffer = sourceBuffer; + + var gain = context.createGain(); + gain.gain.setValueAtTime(V0, 0); + gain.gain.linearRampToValueAtTime(V1, 2048/context.sampleRate); + + source.connect(gain); + + source.start(0); + return gain; + }, + createExpectedBuffers(context) { + var T1 = 2048 / context.sampleRate; + var expectedBuffer = context.createBuffer(1, 2048, context.sampleRate); + for (var i = 0; i < 2048; ++i) { + var t = i / context.sampleRate; + expectedBuffer.getChannelData(0)[i] = V0 + (V1 - V0) * ((t - T0) / (T1 - T0)); + } + return expectedBuffer; + }, +}; + +runTest(); + +</script> +</pre> +</body> +</html> |