| Index: third_party/WebKit/LayoutTests/webaudio/AudioParam/audioparam-setTargetAtTime-sampling.html
|
| diff --git a/third_party/WebKit/LayoutTests/webaudio/AudioParam/audioparam-setTargetAtTime-sampling.html b/third_party/WebKit/LayoutTests/webaudio/AudioParam/audioparam-setTargetAtTime-sampling.html
|
| index 50e000a0a56d85d1713717e4c2758720cfbe9eb4..1e0bd7fe0e043aa3001d422d13de667dc25abe41 100644
|
| --- a/third_party/WebKit/LayoutTests/webaudio/AudioParam/audioparam-setTargetAtTime-sampling.html
|
| +++ b/third_party/WebKit/LayoutTests/webaudio/AudioParam/audioparam-setTargetAtTime-sampling.html
|
| @@ -1,40 +1,43 @@
|
| -<!doctype html>
|
| +<!DOCTYPE html>
|
| <html>
|
| <head>
|
| + <title>
|
| + Test Sampling for SetTargetAtTime
|
| + </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/audioparam-testing.js"></script>
|
| - <title>Test Sampling for SetTargetAtTime</title>
|
| </head>
|
| -
|
| <body>
|
| - <script>
|
| -
|
| + <script id="layout-test-code">
|
| // Some slow sample rate, but otherwise arbitrary.
|
| - var sampleRate = 12800;
|
| -
|
| - // Time constant for setTargetValue. Make it short, but is otherwise arbitrary.
|
| - var timeConstant = 10 / sampleRate;
|
| -
|
| - // Defaut initial gain for test. Arbitrary, but we want it large so the changes look large,
|
| - // even if the relative change isn't.
|
| - var initialGain = 10000;
|
| -
|
| - var audit = Audit.createTaskRunner();
|
| -
|
| - // Test sampling of setTargetAtTime that starts at |startFrame|. A gain node is used for
|
| - // testing. |initializeGainFunction| initializes the gain value.
|
| - function doTest(should, message, startFrame, threshold, initializeGainFunction) {
|
| - var context = new OfflineAudioContext(1, 256, sampleRate);
|
| - var source = context.createBufferSource();
|
| - var b = context.createBuffer(1, 1, sampleRate);
|
| + let sampleRate = 12800;
|
| +
|
| + // Time constant for setTargetValue. Make it short, but is otherwise
|
| + // arbitrary.
|
| + let timeConstant = 10 / sampleRate;
|
| +
|
| + // Defaut initial gain for test. Arbitrary, but we want it large so the
|
| + // changes look large, even if the relative change isn't.
|
| + let initialGain = 10000;
|
| +
|
| + let audit = Audit.createTaskRunner();
|
| +
|
| + // Test sampling of setTargetAtTime that starts at |startFrame|. A gain
|
| + // node is used for testing. |initializeGainFunction| initializes the
|
| + // gain value.
|
| + function doTest(
|
| + should, message, startFrame, threshold, initializeGainFunction) {
|
| + let context = new OfflineAudioContext(1, 256, sampleRate);
|
| + let source = context.createBufferSource();
|
| + let b = context.createBuffer(1, 1, sampleRate);
|
| b.getChannelData(0)[0] = 1;
|
| source.buffer = b;
|
| source.loop = true;
|
|
|
| - var gain = context.createGain();
|
| + let gain = context.createGain();
|
| // Initialize the value of the gain node appropriately.
|
| initializeGainFunction(gain);
|
| gain.gain.setTargetAtTime(0, startFrame / sampleRate, timeConstant);
|
| @@ -44,62 +47,71 @@
|
|
|
| source.start();
|
|
|
| - return context.startRendering().then(function (resultBuffer) {
|
| - // Verify that the sampling of the setTargetAtTime automation was done correctly. We just
|
| - // look at the sample just past the start of the automation.
|
| - var resultData = resultBuffer.getChannelData(0);
|
| - // Compute the true result at the frame just past startFrame and verify that the actual
|
| - // rendered result is within |threshold| of the expected value.
|
| - var frame = Math.ceil(startFrame);
|
| - var v = 10000 * Math.exp(-(frame / sampleRate - startFrame / sampleRate) / timeConstant);
|
| - should(resultData[frame], message + ": Target value at frame " +
|
| - frame).beCloseTo(v, {
|
| - threshold: threshold
|
| - });
|
| + return context.startRendering().then(function(resultBuffer) {
|
| + // Verify that the sampling of the setTargetAtTime automation was done
|
| + // correctly. We just look at the sample just past the start of the
|
| + // automation.
|
| + let resultData = resultBuffer.getChannelData(0);
|
| + // Compute the true result at the frame just past startFrame and
|
| + // verify that the actual rendered result is within |threshold| of the
|
| + // expected value.
|
| + let frame = Math.ceil(startFrame);
|
| + let v = 10000 *
|
| + Math.exp(
|
| + -(frame / sampleRate - startFrame / sampleRate) /
|
| + timeConstant);
|
| + should(
|
| + resultData[frame], message + ': Target value at frame ' + frame)
|
| + .beCloseTo(v, {threshold: threshold});
|
| });
|
| }
|
|
|
| - function initializeGainBySetter (g) {
|
| + function initializeGainBySetter(g) {
|
| g.gain.value = initialGain;
|
| }
|
|
|
| - function initializeGainBySetValue (g) {
|
| + function initializeGainBySetValue(g) {
|
| g.gain.setValueAtTime(initialGain, 0);
|
| }
|
|
|
| - audit.define("setValue;128.1", (task, should) => {
|
| - doTest(should, "Initialize by setValueAtTime", 128.1, 3.6029e-8,
|
| + audit.define('setValue;128.1', (task, should) => {
|
| + doTest(
|
| + should, 'Initialize by setValueAtTime', 128.1, 3.6029e-8,
|
| initializeGainBySetValue)
|
| - .then(() => task.done());
|
| + .then(() => task.done());
|
| });
|
|
|
| - audit.define("setValue;0.1", (task, should) => {
|
| - doTest(should, "Initialize by setValueAtTime", 0.1, 3.6029e-8,
|
| + audit.define('setValue;0.1', (task, should) => {
|
| + doTest(
|
| + should, 'Initialize by setValueAtTime', 0.1, 3.6029e-8,
|
| initializeGainBySetValue)
|
| - .then(() => task.done());
|
| + .then(() => task.done());
|
| });
|
|
|
| - audit.define("setValue;0.0", (task, should) => {
|
| - doTest(should, "Initialize by setValueAtTime", 0, 3.6029e-8,
|
| + audit.define('setValue;0.0', (task, should) => {
|
| + doTest(
|
| + should, 'Initialize by setValueAtTime', 0, 3.6029e-8,
|
| initializeGainBySetValue)
|
| - .then(() => task.done());
|
| + .then(() => task.done());
|
| });
|
|
|
| - audit.define("setter;128.1", (task, should) => {
|
| - doTest(should, "Initialize by setter", 128.1, 3.6029e-8,
|
| + audit.define('setter;128.1', (task, should) => {
|
| + doTest(
|
| + should, 'Initialize by setter', 128.1, 3.6029e-8,
|
| initializeGainBySetter)
|
| - .then(() => task.done());
|
| + .then(() => task.done());
|
| });
|
|
|
| - audit.define("setter;0.1", (task, should) => {
|
| - doTest(should, "Initialize by setter", 0.1, 3.6029e-8,
|
| + audit.define('setter;0.1', (task, should) => {
|
| + doTest(
|
| + should, 'Initialize by setter', 0.1, 3.6029e-8,
|
| initializeGainBySetter)
|
| - .then(() => task.done());
|
| + .then(() => task.done());
|
| });
|
|
|
| - audit.define("setter;0.0", (task, should) => {
|
| - doTest(should, "Initialize by setter", 0, 0, initializeGainBySetter)
|
| - .then(() => task.done());
|
| + audit.define('setter;0.0', (task, should) => {
|
| + doTest(should, 'Initialize by setter', 0, 0, initializeGainBySetter)
|
| + .then(() => task.done());
|
| });
|
|
|
| audit.run();
|
|
|
Chromium Code Reviews
Issue 2895963003:
Apply layout-test-tidy to LayoutTests/webaudio (Closed)
