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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_convolverNode_mono_mono.html | |
| parent | Initial commit. (diff) | |
| download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip | |
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/media/webaudio/test/test_convolverNode_mono_mono.html')
| -rw-r--r-- | dom/media/webaudio/test/test_convolverNode_mono_mono.html | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/dom/media/webaudio/test/test_convolverNode_mono_mono.html b/dom/media/webaudio/test/test_convolverNode_mono_mono.html new file mode 100644 index 0000000000..1585e1b619 --- /dev/null +++ b/dom/media/webaudio/test/test_convolverNode_mono_mono.html @@ -0,0 +1,73 @@ +<!DOCTYPE html> + +<html> +<head> +<script src="/tests/SimpleTest/SimpleTest.js"></script> +<script type="text/javascript" src="webaudio.js"></script> +<script type="text/javascript" src="layouttest-glue.js"></script> +<script type="text/javascript" src="blink/audio-testing.js"></script> +<script type="text/javascript" src="blink/convolution-testing.js"></script> +<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> +</head> + +<body> + +<div id="description"></div> +<div id="console"></div> + +<script> +description("Tests ConvolverNode processing a mono channel with mono impulse response."); +SimpleTest.waitForExplicitFinish(); + +// To test the convolver, we convolve two square pulses together to +// produce a triangular pulse. To verify the result is correct we +// check several parts of the result. First, we make sure the initial +// part of the result is zero (due to the latency in the convolver). +// Next, the triangular pulse should match the theoretical result to +// within some roundoff. After the triangular pulse, the result +// should be exactly zero, but round-off prevents that. We make sure +// the part after the pulse is sufficiently close to zero. Finally, +// the result should be exactly zero because the inputs are exactly +// zero. +function runTest() { + if (window.testRunner) { + testRunner.dumpAsText(); + testRunner.waitUntilDone(); + } + + window.jsTestIsAsync = true; + + // Create offline audio context. + var context = new OfflineAudioContext(2, sampleRate * renderLengthSeconds, sampleRate); + + var squarePulse = createSquarePulseBuffer(context, pulseLengthFrames); + var trianglePulse = createTrianglePulseBuffer(context, 2 * pulseLengthFrames); + + var bufferSource = context.createBufferSource(); + bufferSource.buffer = squarePulse; + + var convolver = context.createConvolver(); + convolver.normalize = false; + convolver.buffer = squarePulse; + + bufferSource.connect(convolver); + convolver.connect(context.destination); + + bufferSource.start(0); + + context.oncomplete = checkConvolvedResult(trianglePulse); + context.startRendering(); +} + +function finishJSTest() { + SimpleTest.finish(); +} + +runTest(); +successfullyParsed = true; + +</script> + +<script src="../fast/js/resources/js-test-post.js"></script> +</body> +</html> |