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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 Multiple Calls to getFloatFrequencyData
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 <title>Test Multiple Calls to getFloatFrequencyData</title>
9 </head> 11 </head>
12 <body>
13 <script id="layout-test-code">
14 let sampleRate = 48000;
15 // Render enough data to run the test.
16 let renderFrames = 2 * 1024;
17 let renderDuration = renderFrames / sampleRate;
10 18
11 <body> 19 let audit = Audit.createTaskRunner();
12 <script>
13 var sampleRate = 48000;
14 // Render enough data to run the test.
15 var renderFrames = 2*1024;
16 var renderDuration = renderFrames / sampleRate;
17 20
18 var audit = Audit.createTaskRunner(); 21 audit.define('test', (task, should) => {
19 22
20 audit.define("test", (task, should) => { 23 let context = new OfflineAudioContext(1, renderFrames, sampleRate);
21 24
22 var context = new OfflineAudioContext(1, renderFrames, sampleRate); 25 // Use sawtooth oscillator as the source because it has quite a bit of
26 // harmonic content. Otherwise, the type doesn't really matter.
27 let osc = context.createOscillator();
28 osc.type = 'sawtooth';
23 29
24 // Use sawtooth oscillator as the source because it has quite a bit of h armonic content. 30 // Create an analyser with 256-point FFT. The FFT size doesn't really
25 // Otherwise, the type doesn't really matter. 31 // matter much.
26 var osc = context.createOscillator(); 32 let analyser = context.createAnalyser();
27 osc.type = "sawtooth";
28
29 // Create an analyser with 256-point FFT. The FFT size doesn't really m atter much.
30 var analyser = context.createAnalyser();
31 analyser.fftSize = 256; 33 analyser.fftSize = 256;
32 34
33 osc.connect(analyser); 35 osc.connect(analyser);
34 analyser.connect(context.destination); 36 analyser.connect(context.destination);
35 37
36 var success = true; 38 let success = true;
37 39
38 // Suspend after getting a full analyser frame. (Not really necessary, b ut it's nice that 40 // Suspend after getting a full analyser frame. (Not really necessary,
39 // the frame doesn't include any initial zeroes. 41 // but it's nice that the frame doesn't include any initial zeroes.
40 var suspendFrame = analyser.fftSize; 42 let suspendFrame = analyser.fftSize;
41 context.suspend(suspendFrame / sampleRate).then(function () { 43 context.suspend(suspendFrame / sampleRate)
42 // Test successive calls to getFloatFrequencyData in the same renderin g quantum. 44 .then(function() {
43 let f1 = new Float32Array(analyser.frequencyBinCount); 45 // Test successive calls to getFloatFrequencyData in the same
44 let f2 = new Float32Array(analyser.frequencyBinCount); 46 // rendering quantum.
47 let f1 = new Float32Array(analyser.frequencyBinCount);
48 let f2 = new Float32Array(analyser.frequencyBinCount);
45 49
46 analyser.getFloatFrequencyData(f1); 50 analyser.getFloatFrequencyData(f1);
47 analyser.getFloatFrequencyData(f2); 51 analyser.getFloatFrequencyData(f2);
48 should(f2, "Second call to getFloatFrequencyData") 52 should(f2, 'Second call to getFloatFrequencyData')
49 .beEqualToArray(f1); 53 .beEqualToArray(f1);
50 }).then(context.resume.bind(context)); 54 })
55 .then(context.resume.bind(context));
51 56
52 suspendFrame += 128; 57 suspendFrame += 128;
53 context.suspend(suspendFrame / sampleRate).then(function () { 58 context.suspend(suspendFrame / sampleRate)
54 // Test successive calls to getByteFrequencyData in the same rendering quantum. 59 .then(function() {
55 let f1 = new Uint8Array(analyser.frequencyBinCount); 60 // Test successive calls to getByteFrequencyData in the same
56 let f2 = new Uint8Array(analyser.frequencyBinCount); 61 // rendering quantum.
62 let f1 = new Uint8Array(analyser.frequencyBinCount);
63 let f2 = new Uint8Array(analyser.frequencyBinCount);
57 64
58 analyser.getByteFrequencyData(f1); 65 analyser.getByteFrequencyData(f1);
59 analyser.getByteFrequencyData(f2); 66 analyser.getByteFrequencyData(f2);
60 67
61 should(f2, "Second call to getByteFrequencyData") 68 should(f2, 'Second call to getByteFrequencyData')
62 .beEqualToArray(f1); 69 .beEqualToArray(f1);
63 }).then(context.resume.bind(context)); 70 })
71 .then(context.resume.bind(context));
64 72
65 suspendFrame += 128; 73 suspendFrame += 128;
66 context.suspend(suspendFrame / sampleRate).then(function () { 74 context.suspend(suspendFrame / sampleRate)
67 // Test calls to getFloatFrequencyData followed by getByteFrequencyDat a. The float data, 75 .then(function() {
68 // when converted to byte values should be identical to the result fro m 76 // Test calls to getFloatFrequencyData followed by
69 // getByteFrequencyData. 77 // getByteFrequencyData. The float data, when converted to byte
70 let f1 = new Float32Array(analyser.frequencyBinCount); 78 // values should be identical to the result from
71 let f2 = new Uint8Array(analyser.frequencyBinCount); 79 // getByteFrequencyData.
80 let f1 = new Float32Array(analyser.frequencyBinCount);
81 let f2 = new Uint8Array(analyser.frequencyBinCount);
72 82
73 analyser.getFloatFrequencyData(f1); 83 analyser.getFloatFrequencyData(f1);
74 analyser.getByteFrequencyData(f2); 84 analyser.getByteFrequencyData(f2);
75 85
76 var byteValuesFromFloat = convertFloatToByte(f1, analyser.minDecibels, analyser.maxDecibels); 86 let byteValuesFromFloat = convertFloatToByte(
77 should(byteValuesFromFloat, "Output of getByteFrequencyData after getF loatFrequencyData") 87 f1, analyser.minDecibels, analyser.maxDecibels);
78 .beEqualToArray(f2); 88 should(
79 }).then(context.resume.bind(context)); 89 byteValuesFromFloat,
90 'Output of getByteFrequencyData after getFloatFrequencyData')
91 .beEqualToArray(f2);
92 })
93 .then(context.resume.bind(context));
80 94
81 suspendFrame += 128; 95 suspendFrame += 128;
82 context.suspend(suspendFrame / sampleRate).then(function () { 96 context.suspend(suspendFrame / sampleRate)
83 // Test calls to getByteFrequencyData followed by getFloatFrequencyDat a. The float data, 97 .then(function() {
84 // when converted to byte values should be identical to the result fro m 98 // Test calls to getByteFrequencyData followed by
85 // getByteFrequencyData. 99 // getFloatFrequencyData. The float data, when converted to byte
86 var f1 = new Uint8Array(analyser.frequencyBinCount); 100 // values should be identical to the result from
87 var f2 = new Float32Array(analyser.frequencyBinCount); 101 // getByteFrequencyData.
102 let f1 = new Uint8Array(analyser.frequencyBinCount);
103 let f2 = new Float32Array(analyser.frequencyBinCount);
88 104
89 analyser.getByteFrequencyData(f1); 105 analyser.getByteFrequencyData(f1);
90 analyser.getFloatFrequencyData(f2); 106 analyser.getFloatFrequencyData(f2);
91 107
92 var byteValuesFromFloat = convertFloatToByte(f2, analyser.minDecibels, analyser.maxDecibels); 108 let byteValuesFromFloat = convertFloatToByte(
93 should(f1, 109 f2, analyser.minDecibels, analyser.maxDecibels);
94 "Output of getFloatFrequenycData (converted to byte) after getByte FrequencyData") 110 should(
95 .beEqualToArray(byteValuesFromFloat); 111 f1,
96 }).then(context.resume.bind(context)); 112 'Output of getFloatFrequenycData (converted to byte) after get ByteFrequencyData')
113 .beEqualToArray(byteValuesFromFloat);
114 })
115 .then(context.resume.bind(context));
97 116
98 osc.start(); 117 osc.start();
99 context.startRendering().then(() => task.done()); 118 context.startRendering().then(() => task.done());
100 }); 119 });
101 120
102 audit.run(); 121 audit.run();
103 122
104 // Convert the float frequency data (in dB), |floatFreqData|, to byte valu es using the dB 123 // Convert the float frequency data (in dB), |floatFreqData|, to byte
105 // limits |minDecibels| and |maxDecibels|. The new byte array is returned . 124 // values using the dB limits |minDecibels| and |maxDecibels|. The new
125 // byte array is returned.
106 function convertFloatToByte(floatFreqData, minDecibels, maxDecibels) { 126 function convertFloatToByte(floatFreqData, minDecibels, maxDecibels) {
107 var scale = 255 / (maxDecibels - minDecibels); 127 let scale = 255 / (maxDecibels - minDecibels);
108 128
109 return floatFreqData.map(function (x) { 129 return floatFreqData.map(function(x) {
110 var value = Math.floor(scale * (x - minDecibels)); 130 let value = Math.floor(scale * (x - minDecibels));
111 return Math.min(255, Math.max(0, value)); 131 return Math.min(255, Math.max(0, value));
112 }); 132 });
113 } 133 }
114 </script> 134 </script>
115 </body> 135 </body>
116 </html> 136 </html>
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