| Index: third_party/WebKit/LayoutTests/webaudio/Analyser/realtimeanalyser-downmix.html
|
| diff --git a/third_party/WebKit/LayoutTests/webaudio/Analyser/realtimeanalyser-downmix.html b/third_party/WebKit/LayoutTests/webaudio/Analyser/realtimeanalyser-downmix.html
|
| index 69bf48fe7ce424633adbf10c16ab458dda949aaa..132046aaa63c793ae1e5e9fbc2c5f67f1ddf8295 100644
|
| --- a/third_party/WebKit/LayoutTests/webaudio/Analyser/realtimeanalyser-downmix.html
|
| +++ b/third_party/WebKit/LayoutTests/webaudio/Analyser/realtimeanalyser-downmix.html
|
| @@ -1,82 +1,73 @@
|
| -<!doctype html>
|
| +<!DOCTYPE html>
|
| <html>
|
| <head>
|
| + <title>
|
| + Test AnalyserNode Downmixing
|
| + </title>
|
| <script src="../../resources/testharness.js"></script>
|
| - <script src="../../resources/testharnessreport.js"></script>
|
| + <script src="../../resources/testharnessreport.js"></script>
|
| <script src="../resources/audit-util.js"></script>
|
| <script src="../resources/audit.js"></script>
|
| <script src="../resources/fft.js"></script>
|
| <script src="../resources/realtimeanalyser-testing.js"></script>
|
| - <title>Test AnalyserNode Downmixing</title>
|
| </head>
|
| -
|
| <body>
|
| - <script>
|
| + <script id="layout-test-code">
|
| let sampleRate = 44100;
|
| let renderFrames = 2048;
|
|
|
| let audit = Audit.createTaskRunner();
|
|
|
| - let testConfigs = [{
|
| - channelCount: 1,
|
| - message: "mono",
|
| - floatRelError: 6.3283e-8
|
| - }, {
|
| - channelCount: 2,
|
| - message: "stereo",
|
| - floatRelError: 1.1681e-7
|
| - }, {
|
| - channelCount: 4,
|
| - message: "quad",
|
| - floatRelError: 4.9793e-7
|
| - }, {
|
| - channelCount: 6,
|
| - message: "5.1",
|
| - floatRelError: 2.0215e-7
|
| - }, {
|
| - channelCount: 3,
|
| - message: "3-channel",
|
| - floatRelError: 6.3283e-8
|
| - }];
|
| + let testConfigs = [
|
| + {channelCount: 1, message: 'mono', floatRelError: 6.3283e-8},
|
| + {channelCount: 2, message: 'stereo', floatRelError: 1.1681e-7},
|
| + {channelCount: 4, message: 'quad', floatRelError: 4.9793e-7},
|
| + {channelCount: 6, message: '5.1', floatRelError: 2.0215e-7},
|
| + {channelCount: 3, message: '3-channel', floatRelError: 6.3283e-8}
|
| + ];
|
|
|
| // Create tasks for each entry in testConfigs
|
| for (k in testConfigs) {
|
| - audit.define(testConfigs[k].message, (function (config) {
|
| - return function(task, should) {
|
| - runTest(config, should).then(() => task.done());
|
| - };
|
| - })(testConfigs[k]));
|
| + audit.define(testConfigs[k].message, (function(config) {
|
| + return function(task, should) {
|
| + runTest(config, should).then(() => task.done());
|
| + };
|
| + })(testConfigs[k]));
|
| }
|
|
|
| audit.run();
|
|
|
| - // Test downmixing of the AnalyserNode time data. We use the downmixing that automatically
|
| - // happens in the destination node to generate the reference data which is compared to the
|
| - // data that the Analyser node has captured.
|
| + // Test downmixing of the AnalyserNode time data. We use the downmixing
|
| + // that automatically happens in the destination node to generate the
|
| + // reference data which is compared to the data that the Analyser node has
|
| + // captured.
|
| function runTest(options, should) {
|
| - // Context MUST have exactly one channel so that we downmix the source to mono to generate
|
| - // the reference.
|
| + // Context MUST have exactly one channel so that we downmix the source
|
| + // to mono to generate the reference.
|
| let context = new OfflineAudioContext(1, renderFrames, sampleRate);
|
|
|
| let channels = options.channelCount || 1;
|
| let source = context.createBufferSource();
|
|
|
| - // The signals in each channel. Doesn't matter much what is in here, but it's best if the
|
| - // values aren't linearly increasing so that the average of the values isn't one of the
|
| - // values (in case the implementation does something silly). Only need to support up to 6
|
| + // The signals in each channel. Doesn't matter much what is in here, but
|
| + // it's best if the values aren't linearly increasing so that the
|
| + // average of the values isn't one of the values (in case the
|
| + // implementation does something silly). Only need to support up to 6
|
| // channels.
|
| - let bufferValues = [1, 2, 3, 4, 5, 6].map(function (x) {
|
| + let bufferValues = [1, 2, 3, 4, 5, 6].map(function(x) {
|
| return x * x
|
| - });;
|
| - source.buffer = createConstantBuffer(context, renderFrames, bufferValues.slice(0, channels));
|
| + });
|
| + ;
|
| + source.buffer = createConstantBuffer(
|
| + context, renderFrames, bufferValues.slice(0, channels));
|
|
|
| let analyser = context.createAnalyser();
|
| analyser.smoothingTimeConstant = 0;
|
| analyser.fftSize = 256;
|
|
|
| - // Run analyser as an automatic pull node. Do NOT connect to the destination. We don't want
|
| - // the output of the analyser to mix in with the source that is also directly connected to
|
| - // the destination.
|
| + // Run analyser as an automatic pull node. Do NOT connect to the
|
| + // destination. We don't want the output of the analyser to mix in with
|
| + // the source that is also directly connected to the destination.
|
| source.connect(analyser);
|
| source.connect(context.destination);
|
|
|
| @@ -84,27 +75,32 @@
|
| let freqData = new Float32Array(analyser.frequencyBinCount);
|
|
|
| let suspendFrame = analyser.fftSize;
|
| - context.suspend(suspendFrame / context.sampleRate).then(function () {
|
| - analyser.getFloatTimeDomainData(timeData);
|
| - analyser.getFloatFrequencyData(freqData);
|
| - }).then(context.resume.bind(context));
|
| + context.suspend(suspendFrame / context.sampleRate)
|
| + .then(function() {
|
| + analyser.getFloatTimeDomainData(timeData);
|
| + analyser.getFloatFrequencyData(freqData);
|
| + })
|
| + .then(context.resume.bind(context));
|
|
|
| source.start();
|
| - return context.startRendering().then(function (renderedBuffer) {
|
| + return context.startRendering().then(function(renderedBuffer) {
|
| // Verify the time domain data is correct.
|
| - let prefix = "Analyser downmix " + options.message + " to mono"
|
| - should(timeData, prefix + " time data")
|
| - .beEqualToArray(renderedBuffer.getChannelData(0).subarray(0, analyser.fftSize));
|
| + let prefix = 'Analyser downmix ' + options.message + ' to mono'
|
| + should(timeData, prefix + ' time data')
|
| + .beEqualToArray(renderedBuffer.getChannelData(0).subarray(
|
| + 0, analyser.fftSize));
|
|
|
| - let expectedTimeData = renderedBuffer.getChannelData(0).subarray(0, analyser.fftSize);
|
| + let expectedTimeData =
|
| + renderedBuffer.getChannelData(0).subarray(0, analyser.fftSize);
|
| let fftOrder = Math.floor(Math.log2(analyser.fftSize));
|
| - let expectedFreqData = computeFFTMagnitude(expectedTimeData, fftOrder).map(linearToDb);
|
| + let expectedFreqData =
|
| + computeFFTMagnitude(expectedTimeData, fftOrder).map(linearToDb);
|
|
|
| - compareFloatFreq(prefix + " freq data", freqData,
|
| - expectedFreqData, should, {
|
| - precision: 6,
|
| - floatRelError: options.floatRelError,
|
| - });
|
| + compareFloatFreq(
|
| + prefix + ' freq data', freqData, expectedFreqData, should, {
|
| + precision: 6,
|
| + floatRelError: options.floatRelError,
|
| + });
|
| });
|
| }
|
| </script>
|
|
|