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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
| commit | 43a97878ce14b72f0981164f87f2e35e14151312 (patch) | |
| tree | 620249daf56c0258faa40cbdcf9cfba06de2a846 /testing/web-platform/tests/webaudio/the-audio-api/the-analysernode-interface/test-analyser-gain.html | |
| parent | Initial commit. (diff) | |
| download | firefox-43a97878ce14b72f0981164f87f2e35e14151312.tar.xz firefox-43a97878ce14b72f0981164f87f2e35e14151312.zip | |
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/webaudio/the-audio-api/the-analysernode-interface/test-analyser-gain.html')
| -rw-r--r-- | testing/web-platform/tests/webaudio/the-audio-api/the-analysernode-interface/test-analyser-gain.html | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-analysernode-interface/test-analyser-gain.html b/testing/web-platform/tests/webaudio/the-audio-api/the-analysernode-interface/test-analyser-gain.html new file mode 100644 index 0000000000..dff51a74c5 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-analysernode-interface/test-analyser-gain.html @@ -0,0 +1,50 @@ +<!DOCTYPE html> +<html> +<head> + <meta charset="utf-8"> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script> +promise_test(function() { + // fftSize <= bufferSize so that the time domain data is full of input after + // processing the buffer. + const fftSize = 32; + const bufferSize = 128; + + var context = new OfflineAudioContext(1, bufferSize, 48000); + + var analyser1 = context.createAnalyser(); + analyser1.fftSize = fftSize; + analyser1.connect(context.destination); + var analyser2 = context.createAnalyser(); + analyser2.fftSize = fftSize; + + var gain = context.createGain(); + gain.gain.value = 2.0; + gain.connect(analyser1); + gain.connect(analyser2); + + // Create a DC input to make getFloatTimeDomainData() output consistent at + // any time. + var buffer = context.createBuffer(1, 1, context.sampleRate); + buffer.getChannelData(0)[0] = 1.0 / gain.gain.value; + var source = context.createBufferSource(); + source.buffer = buffer; + source.loop = true; + source.connect(gain); + source.start(); + + return context.startRendering().then(function(buffer) { + assert_equals(buffer.getChannelData(0)[0], 1.0, "analyser1 output"); + + var data = new Float32Array(1); + analyser1.getFloatTimeDomainData(data); + assert_equals(data[0], 1.0, "analyser1 time domain data"); + analyser2.getFloatTimeDomainData(data); + assert_equals(data[0], 1.0, "analyser2 time domain data"); + }); +}, "Test effect of AnalyserNode on GainNode output"); + </script> +</head> +</body> +</html> |