Index: third_party/WebKit/LayoutTests/webaudio/realtimeanalyser-freq-data.html |
diff --git a/third_party/WebKit/LayoutTests/webaudio/realtimeanalyser-freq-data.html b/third_party/WebKit/LayoutTests/webaudio/realtimeanalyser-freq-data.html |
deleted file mode 100644 |
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--- a/third_party/WebKit/LayoutTests/webaudio/realtimeanalyser-freq-data.html |
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-<!doctype html> |
-<html> |
- <head> |
- <script src="../resources/js-test.js"></script> |
- <script src="resources/compatibility.js"></script> |
- <script src="resources/audit-util.js"></script> |
- <script src="resources/audio-testing.js"></script> |
- <script src="resources/realtimeanalyser-testing.js"></script> |
- <script src="resources/fft.js"></script> |
- <title>Test Analyser getFloatFrequencyData and getByteFrequencyData, No Smoothing</title> |
- </head> |
- |
- <body> |
- <script> |
- description("Test AnalyserNode getFloatFrequencyData and getByteFrequencyData, no Smoothing"); |
- window.jsTestIsAsync = true; |
- |
- // Use a power of two to eliminate any round-off in the computation of the times for |
- // context.suspend(). |
- var sampleRate = 32768; |
- |
- // The largest FFT size for the analyser node is 32768. We want to render longer than this so |
- // that we have at least one complete buffer of data of 32768 samples. |
- var renderFrames = 2 * 32768; |
- var renderDuration = renderFrames / sampleRate; |
- |
- var audit = Audit.createTaskRunner(); |
- |
- // Options for basic tests of the AnalyserNode frequency domain data. The thresholds are |
- // experimentally determined. |
- var testConfig = [{ |
- order: 5, |
- // For this order, need to specify a higher minDecibels value for the analyser because the |
- // FFT doesn't get that small. This allows us to test that (a changed) minDecibels has an |
- // effect and that we properly clip the byte data. |
- minDecibels: -50, |
- floatRelError: 6.8964e-7, |
- }, { |
- order: 6, |
- floatRelError: 6.8366e-6 |
- }, { |
- order: 7, |
- floatRelError: 1.4602e-6 |
- }, { |
- order: 8, |
- floatRelError: 8.4828e-7 |
- }, { |
- order: 9, |
- floatRelError: 2.3906e-5 |
- }, { |
- order: 10, |
- floatRelError: 2.0483e-5 |
- }, { |
- order: 11, |
- floatRelError: 1.3456e-5 |
- }, { |
- order: 12, |
- floatRelError: 4.6116e-7 |
- }, { |
- order: 13, |
- floatRelError: 3.2106e-7 |
- }, { |
- order: 14, |
- floatRelError: 1.1756e-7 |
- }, { |
- order: 15, |
- floatRelError: 1.1756e-7 |
- }]; |
- |
- // True if all of the basic tests passed. |
- var basicTestsPassed = true; |
- |
- // Generate tests for each entry in testConfig. |
- for (var k = 0; k < testConfig.length; ++k) { |
- var name = testConfig[k].order + "-order FFT"; |
- (function (config) { |
- audit.defineTask(name, function (done) { |
- basicFFTTest(config).then(done); |
- }); |
- })(testConfig[k]); |
- } |
- |
- // Just print a summary of the result of the above tests. |
- audit.defineTask("summarize basic tests", function (done) { |
- if (basicTestsPassed) |
- testPassed("Basic frequency data computed correctly.\n"); |
- else |
- testFailed("Basic frequency data computed incorrectly.\n"); |
- done(); |
- }); |
- |
- // Test that smoothing isn't done and we have the expected data, calling getFloatFrequencyData |
- // twice at different times. |
- audit.defineTask("no smoothing", function (done) { |
- // Use 128-point FFT for the test. The actual order doesn't matter (but the error threshold |
- // depends on the order). |
- var options = { |
- order: 7, |
- smoothing: 0, |
- floatRelError: 1.2548e-6 |
- }; |
- var graph = createGraph(options); |
- var context = graph.context; |
- var analyser = graph.analyser; |
- |
- // Be sure to suspend after the analyser fftSize so we get a full buffer of data. We will |
- // grab the FFT data to prime the pump for smoothing. We don't need to check the results |
- // (because this is tested above in the basicFFTTests). |
- var suspendFrame = Math.max(128, analyser.fftSize); |
- context.suspend(suspendFrame / sampleRate).then(function () { |
- // Grab the time and frequency data. But we don't care what values we get now; we just |
- // want to prime the analyser. |
- var freqData = new Float32Array(analyser.frequencyBinCount); |
- |
- // Grab the frequency domain data |
- analyser.getFloatFrequencyData(freqData); |
- }).then(context.resume.bind(context)); |
- |
- // Grab another set of data after one rendering quantum. We will test this to make sure |
- // smoothing was not done. |
- suspendFrame += 128; |
- context.suspend(suspendFrame / sampleRate).then(function () { |
- var timeData = new Float32Array(analyser.fftSize); |
- var freqData = new Float32Array(analyser.frequencyBinCount); |
- |
- // Grab the time domain and frequency domain data |
- analyser.getFloatTimeDomainData(timeData); |
- analyser.getFloatFrequencyData(freqData); |
- |
- var expected = computeFFTMagnitude(timeData, options.order).map(linearToDb); |
- var comparison = compareFloatFreq(Math.pow(2, options.order) + "-point float FFT", |
- freqData, expected, options); |
- basicTestsPassed = basicTestsPassed && comparison.success; |
- |
- if (comparison.success) |
- testPassed("Smoothing constant of 0 correctly handled.\n"); |
- else |
- testFailed("Smoothing constant of 0 incorrectly handled.\n"); |
- }).then(context.resume.bind(context)); |
- |
- context.startRendering().then(done); |
- }); |
- |
- audit.defineTask("finish", function (done) { |
- finishJSTest(); |
- done(); |
- }); |
- |
- audit.runTasks(); |
- |
- // Run a simple test of the AnalyserNode's frequency domain data. Both the float and byte |
- // frequency data are tested. The byte tests depend on the float tests being correct. |
- // |
- // The parameters of the test are given by |options| which is a property bag consisting of the |
- // following: |
- // |
- // order: Order of the FFT to test. |
- // smoothing: smoothing time constant for the analyser. |
- // minDecibels: min decibels value for the analyser. |
- // floatRelError: max allowed relative error for the float FFT data |
- function basicFFTTest(options) { |
- var graph = createGraph(options); |
- var context = graph.context; |
- var analyser = graph.analyser; |
- |
- var suspendTime = Math.max(128, analyser.fftSize) / sampleRate; |
- context.suspend(suspendTime).then(function () { |
- var timeData = new Float32Array(analyser.fftSize); |
- var freqData = new Float32Array(analyser.frequencyBinCount); |
- |
- // Grab the time domain and frequency domain data |
- analyser.getFloatTimeDomainData(timeData); |
- analyser.getFloatFrequencyData(freqData); |
- |
- var expected = computeFFTMagnitude(timeData, options.order).map(linearToDb); |
- var comparison = compareFloatFreq(Math.pow(2, options.order) + "-point float FFT", |
- freqData, expected, options); |
- basicTestsPassed = basicTestsPassed && comparison.success; |
- var expected = comparison.expected; |
- |
- // For the byte test to be better, check that there are some samples that are outside the |
- // range of minDecibels and maxDecibels. If there aren't the test should update the |
- // minDecibels and maxDecibels values for the analyser. |
- |
- var minValue = Math.min(...expected); |
- var maxValue = Math.max(...expected); |
- |
- basicTestsPassed = Should("Min FFT value", minValue, { |
- brief: true |
- }) |
- .beLessThanOrEqualTo(analyser.minDecibels) && basicTestsPassed; |
- basicTestsPassed = Should("Max FFT value", maxValue, { |
- brief: true |
- }) |
- .beGreaterThanOrEqualTo(analyser.maxDecibels) && basicTestsPassed; |
- |
- // Test the byte frequency data. |
- var byteFreqData = new Uint8Array(analyser.frequencyBinCount); |
- var expectedByteData = new Float32Array(analyser.frequencyBinCount); |
- analyser.getByteFrequencyData(byteFreqData); |
- |
- // Convert the expected float frequency data to byte data. |
- var expectedByteData = convertFloatToByte(expected, analyser.minDecibels, |
- analyser.maxDecibels); |
- |
- basicTestsPassed = Should(analyser.fftSize + "-point byte FFT", byteFreqData) |
- .beCloseToArray(expectedByteData, 0) && basicTestsPassed; |
- |
- }).then(context.resume.bind(context)); |
- |
- return context.startRendering(); |
- } |
- </script> |
- </body> |
-</html> |