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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
| commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
| tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /dom/media/webaudio/test/test_convolverNodeFiniteInfluence.html | |
| parent | Initial commit. (diff) | |
| download | thunderbird-upstream.tar.xz thunderbird-upstream.zip | |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/media/webaudio/test/test_convolverNodeFiniteInfluence.html')
| -rw-r--r-- | dom/media/webaudio/test/test_convolverNodeFiniteInfluence.html | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/dom/media/webaudio/test/test_convolverNodeFiniteInfluence.html b/dom/media/webaudio/test/test_convolverNodeFiniteInfluence.html new file mode 100644 index 0000000000..1cfb51ce8a --- /dev/null +++ b/dom/media/webaudio/test/test_convolverNodeFiniteInfluence.html @@ -0,0 +1,44 @@ +<!DOCTYPE html> +<title>Test convolution effect has finite duration</title> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script> +promise_test(function() { + + const responseLength = 256; + // Accept an influence period of twice the responseLength to accept FFT + // implementations. + const tolerancePeriod = 2 * responseLength; + const totalSize = tolerancePeriod + responseLength; + + var context = new OfflineAudioContext(1, totalSize, 48000); + + var responseBuffer = + context.createBuffer(1, responseLength, context.sampleRate); + var responseChannelData = responseBuffer.getChannelData(0); + responseChannelData[0] = 1; + responseChannelData[responseLength - 1] = 1; + var convolver = context.createConvolver(); + convolver.buffer = responseBuffer; + convolver.connect(context.destination); + + var sourceBuffer = context.createBuffer(1, totalSize, context.sampleRate); + sourceBuffer.getChannelData(0)[0] = NaN; + var source = context.createBufferSource(); + source.buffer = sourceBuffer; + source.connect(convolver); + source.start(); + + return context.startRendering(). + then((buffer) => { + var convolverOutput = buffer.getChannelData(0); + // There should be no non-zeros after the tolerance period. + var testIndex = tolerancePeriod; + for (; + testIndex < buffer.length - 1 && convolverOutput[testIndex] == 0; + ++testIndex) { + } + assert_equals(convolverOutput[testIndex], 0, "output at " + testIndex); + }); +}); +</script> |