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Issue 2777983002: Convert Analyser tests to use new Audit. (Closed)
Patch Set: Rebase Created 3 years, 8 months ago
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1 <!doctype html> 1 <!doctype html>
2 <html> 2 <html>
3 <head> 3 <head>
4 <script src="../../resources/testharness.js"></script> 4 <script src="../../resources/testharness.js"></script>
5 <script src="../../resources/testharnessreport.js"></script> 5 <script src="../../resources/testharnessreport.js"></script>
6 <script src="../resources/audit-util.js"></script> 6 <script src="../resources/audit-util.js"></script>
7 <script src="../resources/audio-testing.js"></script> 7 <script src="../resources/audit.js"></script>
8 <script src="../resources/realtimeanalyser-testing.js"></script> 8 <script src="../resources/realtimeanalyser-testing.js"></script>
9 <script src="../resources/fft.js"></script> 9 <script src="../resources/fft.js"></script>
10 <title>Test Analyser getFloatFrequencyData and getByteFrequencyData, Smoothi ng</title> 10 <title>Test Analyser getFloatFrequencyData and getByteFrequencyData, Smoothi ng</title>
11 11
12 </head> 12 </head>
13 13
14 <body> 14 <body>
15 <script> 15 <script>
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 times for
17 // context.suspend(). 17 // context.suspend().
18 var sampleRate = 32768; 18 var 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 longer than this so
21 // that we have at least one complete buffer of data of 32768 samples. 21 // that we have at least one complete buffer of data of 32768 samples.
22 var renderFrames = 2 * 32768; 22 var renderFrames = 2 * 32768;
23 var renderDuration = renderFrames / sampleRate; 23 var renderDuration = renderFrames / sampleRate;
24 24
25 var audit = Audit.createTaskRunner(); 25 var audit = Audit.createTaskRunner();
26 26
27 // Do one basic test of smoothing of the FFT data. 27 // Do one basic test of smoothing of the FFT data.
28 audit.defineTask("smoothing test", function (done) { 28 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 29 // Test only 512-point FFT. The size isn't too important as long as it' s greater than 128
30 // (a rendering quantum). 30 // (a rendering quantum).
31 var options = { 31 var options = {
32 order: 9, 32 order: 9,
33 smoothing: 0.5, 33 smoothing: 0.5,
34 floatRelError: 5.9207e-6 34 floatRelError: 5.9207e-6
35 }; 35 };
36 36
37 var success = true; 37 var success = true;
38 38
(...skipping 12 matching lines...) Expand all
51 var freqData = new Float32Array(analyser.frequencyBinCount); 51 var freqData = new Float32Array(analyser.frequencyBinCount);
52 analyser.getFloatTimeDomainData(timeData); 52 analyser.getFloatTimeDomainData(timeData);
53 analyser.getFloatFrequencyData(freqData); 53 analyser.getFloatFrequencyData(freqData);
54 54
55 var expectedFreq = computeFFTMagnitude(timeData, options.order); 55 var expectedFreq = computeFFTMagnitude(timeData, options.order);
56 smoothFFT(smoothedFloatResult, expectedFreq, options.smoothing); 56 smoothFFT(smoothedFloatResult, expectedFreq, options.smoothing);
57 57
58 var message = "First " + analyser.fftSize + "-point FFT at frame " + ( context.currentTime * 58 var message = "First " + analyser.fftSize + "-point FFT at frame " + ( context.currentTime *
59 sampleRate); 59 sampleRate);
60 var comparison = compareFloatFreq(message, freqData, smoothedFloatResu lt.map( 60 var comparison = compareFloatFreq(message, freqData, smoothedFloatResu lt.map(
61 linearToDb), options); 61 linearToDb), should, options);
62 success = success && comparison.success; 62 success = success && comparison.success;
63 63
64 // Test the byte frequency data. 64 // Test the byte frequency data.
65 var byteFreqData = new Uint8Array(analyser.frequencyBinCount); 65 var byteFreqData = new Uint8Array(analyser.frequencyBinCount);
66 var expectedByteData = new Float32Array(analyser.frequencyBinCount); 66 var expectedByteData = new Float32Array(analyser.frequencyBinCount);
67 analyser.getByteFrequencyData(byteFreqData); 67 analyser.getByteFrequencyData(byteFreqData);
68 68
69 // Convert the expected float frequency data to byte data. 69 // Convert the expected float frequency data to byte data.
70 var expectedByteData = convertFloatToByte(smoothedFloatResult.map(line arToDb), 70 var expectedByteData = convertFloatToByte(smoothedFloatResult.map(line arToDb),
71 analyser.minDecibels, analyser.maxDecibels); 71 analyser.minDecibels, analyser.maxDecibels);
72 72
73 success = Should(analyser.fftSize + "-point byte FFT", byteFreqData) 73 should(byteFreqData, analyser.fftSize + "-point byte FFT")
74 .beCloseToArray(expectedByteData, 0) && success; 74 .beCloseToArray(expectedByteData, 0);
75 75
76 }).then(context.resume.bind(context)); 76 }).then(context.resume.bind(context));
77 77
78 // 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 is done correctly.
79 suspendFrame += 2 * analyser.fftSize; 79 suspendFrame += 2 * analyser.fftSize;
80 context.suspend(suspendFrame / sampleRate).then(function () { 80 context.suspend(suspendFrame / sampleRate).then(function () {
81 var timeData = new Float32Array(analyser.fftSize); 81 var timeData = new Float32Array(analyser.fftSize);
82 var freqDataInDb = new Float32Array(analyser.frequencyBinCount); 82 var freqDataInDb = new Float32Array(analyser.frequencyBinCount);
83 83
84 // Grab the time domain and frequency domain data 84 // Grab the time domain and frequency domain data
85 analyser.getFloatTimeDomainData(timeData); 85 analyser.getFloatTimeDomainData(timeData);
86 analyser.getFloatFrequencyData(freqDataInDb); 86 analyser.getFloatFrequencyData(freqDataInDb);
87 87
88 var newFreqData = computeFFTMagnitude(timeData, options.order); 88 var newFreqData = computeFFTMagnitude(timeData, options.order);
89 // Smooth the data together 89 // Smooth the data together
90 90
91 smoothFFT(smoothedFloatResult, newFreqData, options.smoothing); 91 smoothFFT(smoothedFloatResult, newFreqData, options.smoothing);
92 var message = "Smoothed " + analyser.fftSize + "-point FFT at frame " + 92 var message = "Smoothed " + analyser.fftSize + "-point FFT at frame " +
93 (context.currentTime * sampleRate); 93 (context.currentTime * sampleRate);
94 var comparison = compareFloatFreq(message, 94 var comparison = compareFloatFreq(message,
95 freqDataInDb, smoothedFloatResult.map(linearToDb), { 95 freqDataInDb, smoothedFloatResult.map(linearToDb), should, {
96 order: options.order, 96 order: options.order,
97 smoothing: options.smoothing, 97 smoothing: options.smoothing,
98 floatRelError: 2.5332e-5 98 floatRelError: 2.5332e-5
99 }); 99 });
100 success = success && comparison.success; 100 success = success && comparison.success;
101 101
102 // Test the byte frequency data. 102 // Test the byte frequency data.
103 var byteFreqData = new Uint8Array(analyser.frequencyBinCount); 103 var byteFreqData = new Uint8Array(analyser.frequencyBinCount);
104 var expectedByteData = new Float32Array(analyser.frequencyBinCount); 104 var expectedByteData = new Float32Array(analyser.frequencyBinCount);
105 analyser.getByteFrequencyData(byteFreqData); 105 analyser.getByteFrequencyData(byteFreqData);
106 106
107 // Convert the expected float frequency data to byte data. 107 // Convert the expected float frequency data to byte data.
108 var expectedByteData = convertFloatToByte(smoothedFloatResult.map(line arToDb), 108 var expectedByteData = convertFloatToByte(smoothedFloatResult.map(line arToDb),
109 analyser.minDecibels, analyser.maxDecibels); 109 analyser.minDecibels, analyser.maxDecibels);
110 110
111 success = Should(analyser.fftSize + "-point byte FFT", byteFreqData) 111 should(byteFreqData, analyser.fftSize + "-point byte FFT")
112 .beCloseToArray(expectedByteData, 0) && success; 112 .beCloseToArray(expectedByteData, 0);
113 113
114 }).then(context.resume.bind(context)); 114 }).then(context.resume.bind(context));
115 115
116 context.startRendering().then(function (buffer) { 116 context.startRendering().then(() => task.done());
117 var prefix = "FFT smoothing performed";
118 var suffix = " with smoothing constant " + analyser.smoothingTimeConst ant;
119
120 Should(prefix, success)
121 .summarize("correctly" + suffix,
122 "incorrectly" + suffix);
123 }).then(done);
124 }); 117 });
125 118
126 audit.defineTask("finish", function (done) { 119 audit.run();
127 done();
128 });
129
130 audit.runTasks();
131 120
132 </script> 121 </script>
133 </body> 122 </body>
134 </html> 123 </html>
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