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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
| commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
| tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /dom/media/webaudio/test/test_bug1113634.html | |
| parent | Initial commit. (diff) | |
| download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip | |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/media/webaudio/test/test_bug1113634.html')
| -rw-r--r-- | dom/media/webaudio/test/test_bug1113634.html | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/dom/media/webaudio/test/test_bug1113634.html b/dom/media/webaudio/test/test_bug1113634.html new file mode 100644 index 0000000000..acdcba7c25 --- /dev/null +++ b/dom/media/webaudio/test/test_bug1113634.html @@ -0,0 +1,58 @@ +<!DOCTYPE HTML> +<html> +<head> + <title>Test AudioParam.setTargetAtTime where the target time is the same as the time of a previous event</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 = 0.9; +var V1 = 0.1; +var T0 = 0; +var TimeConstant = 0.1; + +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, T0); + gain.gain.setTargetAtTime(V1, T0, TimeConstant); + + source.connect(gain); + + source.start(0); + return gain; + }, + createExpectedBuffers(context) { + var expectedBuffer = context.createBuffer(1, 2048, context.sampleRate); + for (var i = 0; i < 2048; ++i) { + var t = i / context.sampleRate; + expectedBuffer.getChannelData(0)[i] = V1 + (V0 - V1) * Math.exp(-(t - T0) / TimeConstant); + } + return expectedBuffer; + }, +}; + +SimpleTest.waitForExplicitFinish(); +// Comparing different AudioContexts may result in different timing reated information being reported +// when we jitter time, as they are on different Relative Timelines. +SpecialPowers.pushPrefEnv({"set": [["privacy.resistFingerprinting.reduceTimerPrecision.jitter", false]]}, runTest); + + +</script> +</pre> +</body> +</html> |