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Issue 2895963003: Apply layout-test-tidy to LayoutTests/webaudio (Closed)
Patch Set: Created 3 years, 7 months ago
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1 <!doctype html> 1 <!DOCTYPE html>
2 <html> 2 <html>
3 <head> 3 <head>
4 <title>
5 Test Analyser getFloatFrequencyData and getByteFrequencyData, Smoothing
6 </title>
4 <script src="../../resources/testharness.js"></script> 7 <script src="../../resources/testharness.js"></script>
5 <script src="../../resources/testharnessreport.js"></script> 8 <script src="../../resources/testharnessreport.js"></script>
6 <script src="../resources/audit-util.js"></script> 9 <script src="../resources/audit-util.js"></script>
7 <script src="../resources/audit.js"></script> 10 <script src="../resources/audit.js"></script>
8 <script src="../resources/realtimeanalyser-testing.js"></script> 11 <script src="../resources/realtimeanalyser-testing.js"></script>
9 <script src="../resources/fft.js"></script> 12 <script src="../resources/fft.js"></script>
10 <title>Test Analyser getFloatFrequencyData and getByteFrequencyData, Smoothi ng</title>
11
12 </head> 13 </head>
13
14 <body> 14 <body>
15 <script> 15 <script id="layout-test-code">
16 // Use a power of two to eliminate any round-off in the computation of the times for 16 // Use a power of two to eliminate any round-off in the computation of the
17 // context.suspend(). 17 // times for context.suspend().
18 let sampleRate = 32768; 18 let sampleRate = 32768;
19 19
20 // The largest FFT size for the analyser node is 32768. We want to render longer than this so 20 // The largest FFT size for the analyser node is 32768. We want to render
21 // that we have at least one complete buffer of data of 32768 samples. 21 // longer than this so that we have at least one complete buffer of data
22 // of 32768 samples.
22 let renderFrames = 2 * 32768; 23 let renderFrames = 2 * 32768;
23 let renderDuration = renderFrames / sampleRate; 24 let renderDuration = renderFrames / sampleRate;
24 25
25 let audit = Audit.createTaskRunner(); 26 let audit = Audit.createTaskRunner();
26 27
27 // Do one basic test of smoothing of the FFT data. 28 // Do one basic test of smoothing of the FFT data.
28 audit.define("smoothing test", (task, should) => { 29 audit.define('smoothing test', (task, should) => {
29 // Test only 512-point FFT. The size isn't too important as long as it' s greater than 128 30 // Test only 512-point FFT. The size isn't too important as long as
30 // (a rendering quantum). 31 // it's greater than 128 (a rendering quantum).
31 let options = { 32 let options = {order: 9, smoothing: 0.5, floatRelError: 5.9207e-6};
32 order: 9,
33 smoothing: 0.5,
34 floatRelError: 5.9207e-6
35 };
36 33
37 let success = true; 34 let success = true;
38 35
39 let graph = createGraph(options); 36 let graph = createGraph(options);
40 37
41 context = graph.context; 38 context = graph.context;
42 analyser = graph.analyser; 39 analyser = graph.analyser;
43 40
44 let smoothedFloatResult = new Float32Array(analyser.frequencyBinCount); 41 let smoothedFloatResult = new Float32Array(analyser.frequencyBinCount);
45 smoothedFloatResult.fill(0); 42 smoothedFloatResult.fill(0);
46 43
47 // Stop after one analyser frame to get the initial FFT 44 // Stop after one analyser frame to get the initial FFT
48 let suspendFrame = analyser.fftSize; 45 let suspendFrame = analyser.fftSize;
49 context.suspend(suspendFrame / sampleRate).then(function () { 46 context.suspend(suspendFrame / sampleRate)
50 let timeData = new Float32Array(analyser.fftSize); 47 .then(function() {
51 let freqData = new Float32Array(analyser.frequencyBinCount); 48 let timeData = new Float32Array(analyser.fftSize);
52 analyser.getFloatTimeDomainData(timeData); 49 let freqData = new Float32Array(analyser.frequencyBinCount);
53 analyser.getFloatFrequencyData(freqData); 50 analyser.getFloatTimeDomainData(timeData);
51 analyser.getFloatFrequencyData(freqData);
54 52
55 let expectedFreq = computeFFTMagnitude(timeData, options.order); 53 let expectedFreq = computeFFTMagnitude(timeData, options.order);
56 smoothFFT(smoothedFloatResult, expectedFreq, options.smoothing); 54 smoothFFT(smoothedFloatResult, expectedFreq, options.smoothing);
57 55
58 let message = "First " + analyser.fftSize + "-point FFT at frame " + ( context.currentTime * 56 let message = 'First ' + analyser.fftSize +
59 sampleRate); 57 '-point FFT at frame ' + (context.currentTime * sampleRate);
60 let comparison = compareFloatFreq(message, freqData, smoothedFloatResu lt.map( 58 let comparison = compareFloatFreq(
61 linearToDb), should, options); 59 message, freqData, smoothedFloatResult.map(linearToDb),
62 success = success && comparison.success; 60 should, options);
61 success = success && comparison.success;
63 62
64 // Test the byte frequency data. 63 // Test the byte frequency data.
65 let byteFreqData = new Uint8Array(analyser.frequencyBinCount); 64 let byteFreqData = new Uint8Array(analyser.frequencyBinCount);
66 analyser.getByteFrequencyData(byteFreqData); 65 analyser.getByteFrequencyData(byteFreqData);
67 66
68 // Convert the expected float frequency data to byte data. 67 // Convert the expected float frequency data to byte data.
69 let expectedByteData = convertFloatToByte(smoothedFloatResult.map(line arToDb), 68 let expectedByteData = convertFloatToByte(
70 analyser.minDecibels, analyser.maxDecibels); 69 smoothedFloatResult.map(linearToDb), analyser.minDecibels,
70 analyser.maxDecibels);
71 71
72 should(byteFreqData, analyser.fftSize + "-point byte FFT") 72 should(byteFreqData, analyser.fftSize + '-point byte FFT')
73 .beCloseToArray(expectedByteData, 0); 73 .beCloseToArray(expectedByteData, 0);
74 74
75 }).then(context.resume.bind(context)); 75 })
76 .then(context.resume.bind(context));
76 77
77 // Skip an analyser frame and grab another to verify that the smoothing is done correctly. 78 // Skip an analyser frame and grab another to verify that the smoothing
79 // is done correctly.
78 suspendFrame += 2 * analyser.fftSize; 80 suspendFrame += 2 * analyser.fftSize;
79 context.suspend(suspendFrame / sampleRate).then(function () { 81 context.suspend(suspendFrame / sampleRate)
80 let timeData = new Float32Array(analyser.fftSize); 82 .then(function() {
81 let freqDataInDb = new Float32Array(analyser.frequencyBinCount); 83 let timeData = new Float32Array(analyser.fftSize);
84 let freqDataInDb = new Float32Array(analyser.frequencyBinCount);
82 85
83 // Grab the time domain and frequency domain data 86 // Grab the time domain and frequency domain data
84 analyser.getFloatTimeDomainData(timeData); 87 analyser.getFloatTimeDomainData(timeData);
85 analyser.getFloatFrequencyData(freqDataInDb); 88 analyser.getFloatFrequencyData(freqDataInDb);
86 89
87 let newFreqData = computeFFTMagnitude(timeData, options.order); 90 let newFreqData = computeFFTMagnitude(timeData, options.order);
88 // Smooth the data together 91 // Smooth the data together
89 92
90 smoothFFT(smoothedFloatResult, newFreqData, options.smoothing); 93 smoothFFT(smoothedFloatResult, newFreqData, options.smoothing);
91 let message = "Smoothed " + analyser.fftSize + "-point FFT at frame " + 94 let message = 'Smoothed ' + analyser.fftSize +
92 (context.currentTime * sampleRate); 95 '-point FFT at frame ' + (context.currentTime * sampleRate);
93 let comparison = compareFloatFreq(message, 96 let comparison = compareFloatFreq(
94 freqDataInDb, smoothedFloatResult.map(linearToDb), should, { 97 message, freqDataInDb, smoothedFloatResult.map(linearToDb),
95 order: options.order, 98 should, {
96 smoothing: options.smoothing, 99 order: options.order,
97 floatRelError: 2.5332e-5 100 smoothing: options.smoothing,
98 }); 101 floatRelError: 2.5332e-5
99 success = success && comparison.success; 102 });
103 success = success && comparison.success;
100 104
101 // Test the byte frequency data. 105 // Test the byte frequency data.
102 let byteFreqData = new Uint8Array(analyser.frequencyBinCount); 106 let byteFreqData = new Uint8Array(analyser.frequencyBinCount);
103 analyser.getByteFrequencyData(byteFreqData); 107 analyser.getByteFrequencyData(byteFreqData);
104 108
105 // Convert the expected float frequency data to byte data. 109 // Convert the expected float frequency data to byte data.
106 let expectedByteData = convertFloatToByte(smoothedFloatResult.map(line arToDb), 110 let expectedByteData = convertFloatToByte(
107 analyser.minDecibels, analyser.maxDecibels); 111 smoothedFloatResult.map(linearToDb), analyser.minDecibels,
112 analyser.maxDecibels);
108 113
109 should(byteFreqData, analyser.fftSize + "-point byte FFT") 114 should(byteFreqData, analyser.fftSize + '-point byte FFT')
110 .beCloseToArray(expectedByteData, 0); 115 .beCloseToArray(expectedByteData, 0);
111 116
112 }).then(context.resume.bind(context)); 117 })
118 .then(context.resume.bind(context));
113 119
114 context.startRendering().then(() => task.done()); 120 context.startRendering().then(() => task.done());
115 }); 121 });
116 122
117 audit.run(); 123 audit.run();
118
119 </script> 124 </script>
120 </body> 125 </body>
121 </html> 126 </html>
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