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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_analyserNodeMinimum.html | |
| parent | Initial commit. (diff) | |
| download | firefox-esr-upstream.tar.xz firefox-esr-upstream.zip | |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
| -rw-r--r-- | dom/media/webaudio/test/test_analyserNodeMinimum.html | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/dom/media/webaudio/test/test_analyserNodeMinimum.html b/dom/media/webaudio/test/test_analyserNodeMinimum.html new file mode 100644 index 0000000000..950fd1812b --- /dev/null +++ b/dom/media/webaudio/test/test_analyserNodeMinimum.html @@ -0,0 +1,51 @@ +<!DOCTYPE HTML> +<html> +<head> + <title>Test AnalyserNode when the input is silent</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"> + +SimpleTest.waitForExplicitFinish(); +addLoadEvent(function() { + + var ac = new AudioContext(); + var analyser = ac.createAnalyser(); + var constant = ac.createConstantSource(); + var sp = ac.createScriptProcessor(2048, 1, 0); + + constant.offset.value = 0.0; + + constant.connect(analyser) + .connect(ac.destination); + + constant.connect(sp); + + var buf = new Float32Array(analyser.frequencyBinCount); + var iteration_count = 10; + sp.onaudioprocess = function() { + analyser.getFloatFrequencyData(buf); + var correct = true; + for (var i = 0; i < buf.length; i++) { + correct &= buf[i] == -Infinity; + } + ok(correct, "silent input process -Infinity in decibel bins"); + if(!(iteration_count--)) { + sp.onaudioprocess = null; + constant.stop(); + ac.close(); + SimpleTest.finish(); + } + } + + constant.start(); +}); + +</script> +</pre> +</body> +</html> |