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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 AnalyserNode Downmixing
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/fft.js"></script> 11 <script src="../resources/fft.js"></script>
9 <script src="../resources/realtimeanalyser-testing.js"></script> 12 <script src="../resources/realtimeanalyser-testing.js"></script>
10 <title>Test AnalyserNode Downmixing</title>
11 </head> 13 </head>
12
13 <body> 14 <body>
14 <script> 15 <script id="layout-test-code">
15 let sampleRate = 44100; 16 let sampleRate = 44100;
16 let renderFrames = 2048; 17 let renderFrames = 2048;
17 18
18 let audit = Audit.createTaskRunner(); 19 let audit = Audit.createTaskRunner();
19 20
20 let testConfigs = [{ 21 let testConfigs = [
21 channelCount: 1, 22 {channelCount: 1, message: 'mono', floatRelError: 6.3283e-8},
22 message: "mono", 23 {channelCount: 2, message: 'stereo', floatRelError: 1.1681e-7},
23 floatRelError: 6.3283e-8 24 {channelCount: 4, message: 'quad', floatRelError: 4.9793e-7},
24 }, { 25 {channelCount: 6, message: '5.1', floatRelError: 2.0215e-7},
25 channelCount: 2, 26 {channelCount: 3, message: '3-channel', floatRelError: 6.3283e-8}
26 message: "stereo", 27 ];
27 floatRelError: 1.1681e-7
28 }, {
29 channelCount: 4,
30 message: "quad",
31 floatRelError: 4.9793e-7
32 }, {
33 channelCount: 6,
34 message: "5.1",
35 floatRelError: 2.0215e-7
36 }, {
37 channelCount: 3,
38 message: "3-channel",
39 floatRelError: 6.3283e-8
40 }];
41 28
42 // Create tasks for each entry in testConfigs 29 // Create tasks for each entry in testConfigs
43 for (k in testConfigs) { 30 for (k in testConfigs) {
44 audit.define(testConfigs[k].message, (function (config) { 31 audit.define(testConfigs[k].message, (function(config) {
45 return function(task, should) { 32 return function(task, should) {
46 runTest(config, should).then(() => task.done()); 33 runTest(config, should).then(() => task.done());
47 }; 34 };
48 })(testConfigs[k])); 35 })(testConfigs[k]));
49 } 36 }
50 37
51 audit.run(); 38 audit.run();
52 39
53 // Test downmixing of the AnalyserNode time data. We use the downmixing t hat automatically 40 // Test downmixing of the AnalyserNode time data. We use the downmixing
54 // happens in the destination node to generate the reference data which is compared to the 41 // that automatically happens in the destination node to generate the
55 // data that the Analyser node has captured. 42 // reference data which is compared to the data that the Analyser node has
43 // captured.
56 function runTest(options, should) { 44 function runTest(options, should) {
57 // Context MUST have exactly one channel so that we downmix the source t o mono to generate 45 // Context MUST have exactly one channel so that we downmix the source
58 // the reference. 46 // to mono to generate the reference.
59 let context = new OfflineAudioContext(1, renderFrames, sampleRate); 47 let context = new OfflineAudioContext(1, renderFrames, sampleRate);
60 48
61 let channels = options.channelCount || 1; 49 let channels = options.channelCount || 1;
62 let source = context.createBufferSource(); 50 let source = context.createBufferSource();
63 51
64 // The signals in each channel. Doesn't matter much what is in here, but it's best if the 52 // The signals in each channel. Doesn't matter much what is in here, but
65 // values aren't linearly increasing so that the average of the values i sn't one of the 53 // it's best if the values aren't linearly increasing so that the
66 // values (in case the implementation does something silly). Only need to support up to 6 54 // average of the values isn't one of the values (in case the
55 // implementation does something silly). Only need to support up to 6
67 // channels. 56 // channels.
68 let bufferValues = [1, 2, 3, 4, 5, 6].map(function (x) { 57 let bufferValues = [1, 2, 3, 4, 5, 6].map(function(x) {
69 return x * x 58 return x * x
70 });; 59 });
71 source.buffer = createConstantBuffer(context, renderFrames, bufferValues .slice(0, channels)); 60 ;
61 source.buffer = createConstantBuffer(
62 context, renderFrames, bufferValues.slice(0, channels));
72 63
73 let analyser = context.createAnalyser(); 64 let analyser = context.createAnalyser();
74 analyser.smoothingTimeConstant = 0; 65 analyser.smoothingTimeConstant = 0;
75 analyser.fftSize = 256; 66 analyser.fftSize = 256;
76 67
77 // Run analyser as an automatic pull node. Do NOT connect to the destina tion. We don't want 68 // Run analyser as an automatic pull node. Do NOT connect to the
78 // the output of the analyser to mix in with the source that is also dir ectly connected to 69 // destination. We don't want the output of the analyser to mix in with
79 // the destination. 70 // the source that is also directly connected to the destination.
80 source.connect(analyser); 71 source.connect(analyser);
81 source.connect(context.destination); 72 source.connect(context.destination);
82 73
83 let timeData = new Float32Array(analyser.fftSize); 74 let timeData = new Float32Array(analyser.fftSize);
84 let freqData = new Float32Array(analyser.frequencyBinCount); 75 let freqData = new Float32Array(analyser.frequencyBinCount);
85 76
86 let suspendFrame = analyser.fftSize; 77 let suspendFrame = analyser.fftSize;
87 context.suspend(suspendFrame / context.sampleRate).then(function () { 78 context.suspend(suspendFrame / context.sampleRate)
88 analyser.getFloatTimeDomainData(timeData); 79 .then(function() {
89 analyser.getFloatFrequencyData(freqData); 80 analyser.getFloatTimeDomainData(timeData);
90 }).then(context.resume.bind(context)); 81 analyser.getFloatFrequencyData(freqData);
82 })
83 .then(context.resume.bind(context));
91 84
92 source.start(); 85 source.start();
93 return context.startRendering().then(function (renderedBuffer) { 86 return context.startRendering().then(function(renderedBuffer) {
94 // Verify the time domain data is correct. 87 // Verify the time domain data is correct.
95 let prefix = "Analyser downmix " + options.message + " to mono" 88 let prefix = 'Analyser downmix ' + options.message + ' to mono'
96 should(timeData, prefix + " time data") 89 should(timeData, prefix + ' time data')
97 .beEqualToArray(renderedBuffer.getChannelData(0).subarray(0, analyse r.fftSize)); 90 .beEqualToArray(renderedBuffer.getChannelData(0).subarray(
91 0, analyser.fftSize));
98 92
99 let expectedTimeData = renderedBuffer.getChannelData(0).subarray(0, an alyser.fftSize); 93 let expectedTimeData =
94 renderedBuffer.getChannelData(0).subarray(0, analyser.fftSize);
100 let fftOrder = Math.floor(Math.log2(analyser.fftSize)); 95 let fftOrder = Math.floor(Math.log2(analyser.fftSize));
101 let expectedFreqData = computeFFTMagnitude(expectedTimeData, fftOrder) .map(linearToDb); 96 let expectedFreqData =
97 computeFFTMagnitude(expectedTimeData, fftOrder).map(linearToDb);
102 98
103 compareFloatFreq(prefix + " freq data", freqData, 99 compareFloatFreq(
104 expectedFreqData, should, { 100 prefix + ' freq data', freqData, expectedFreqData, should, {
105 precision: 6, 101 precision: 6,
106 floatRelError: options.floatRelError, 102 floatRelError: options.floatRelError,
107 }); 103 });
108 }); 104 });
109 } 105 }
110 </script> 106 </script>
111 </body> 107 </body>
112 </html> 108 </html>
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