| Index: third_party/WebKit/LayoutTests/webaudio/AudioBufferSource/audiobuffersource-late-start.html
|
| diff --git a/third_party/WebKit/LayoutTests/webaudio/AudioBufferSource/audiobuffersource-late-start.html b/third_party/WebKit/LayoutTests/webaudio/AudioBufferSource/audiobuffersource-late-start.html
|
| index 8c0cc40893e3d57c27b965adbed6e204114fe290..604a9d661a1e010dc28784181cbc4f97694ef76c 100644
|
| --- a/third_party/WebKit/LayoutTests/webaudio/AudioBufferSource/audiobuffersource-late-start.html
|
| +++ b/third_party/WebKit/LayoutTests/webaudio/AudioBufferSource/audiobuffersource-late-start.html
|
| @@ -1,81 +1,84 @@
|
| <!DOCTYPE html>
|
| <html>
|
| + <head>
|
| + <title>
|
| + audiobuffersource-late-start.html
|
| + </title>
|
| + <script src="../../resources/testharness.js"></script>
|
| + <script src="../../resources/testharnessreport.js"></script>
|
| + <script src="../resources/audit-util.js"></script>
|
| + <script src="../resources/audit.js"></script>
|
| + </head>
|
| + <body>
|
| + <script id="layout-test-code">
|
| + let renderQuantum = 128;
|
|
|
| -<head>
|
| - <script src="../../resources/testharness.js"></script>
|
| - <script src="../../resources/testharnessreport.js"></script>
|
| - <script src="../resources/audit-util.js"></script>
|
| - <script src="../resources/audit.js"></script>
|
| -</head>
|
| + let sampleRate = 44100;
|
| + let renderDuration = 0.25;
|
| + let startTime = 0.5 * renderDuration;
|
|
|
| -<body>
|
| - <script>
|
| + let audit = Audit.createTaskRunner();
|
|
|
| - var renderQuantum = 128;
|
| + // Calculate the index for actual start time.
|
| + function getStartIndex(time) {
|
| + let startIndex = time * sampleRate;
|
| + return startIndex -= (startIndex) % renderQuantum;
|
| + }
|
|
|
| - var sampleRate = 44100;
|
| - var renderDuration = 0.25;
|
| - var startTime = 0.5 * renderDuration;
|
| + // Get the index of value change.
|
| + function getValueChangeIndex(array, targetValue) {
|
| + return array.findIndex(function(element, index) {
|
| + if (element === targetValue)
|
| + return true;
|
| + });
|
| + }
|
|
|
| - var audit = Audit.createTaskRunner();
|
| + audit.define('test-late-start', (task, should) => {
|
| + let context =
|
| + new OfflineAudioContext(1, renderDuration * sampleRate, sampleRate);
|
| + let dcOffsetbuffer = createConstantBuffer(context, 1, 1.0);
|
| + let source = context.createBufferSource();
|
| + source.buffer = dcOffsetbuffer;
|
| + source.loop = true;
|
| + source.connect(context.destination);
|
|
|
| - // Calculate the index for actual start time.
|
| - function getStartIndex(time) {
|
| - var startIndex = time * sampleRate;
|
| - return startIndex -= (startIndex) % renderQuantum;
|
| - }
|
| + // Schedule source.start(0) at 0.01 second. The specified timing of
|
| + // start() call is already passed in terms of the context time. So the
|
| + // argument |0| will be clamped to the current context time.
|
| + //
|
| + // With the sample rate of 44100, 0.01 second is 441 samples. Rounding
|
| + // it down to the render quantum gives 384 samples. This is clearly
|
| + // larger than a single render quantum.
|
| + //
|
| + // See issue: crbug.com/462167
|
| + context.suspend(startTime).then(function() {
|
| + source.start(0);
|
| + context.resume();
|
| + });
|
|
|
| - // Get the index of value change.
|
| - function getValueChangeIndex(array, targetValue) {
|
| - return array.findIndex(function (element, index) {
|
| - if (element === targetValue)
|
| - return true;
|
| - });
|
| - }
|
| -
|
| - audit.define('test-late-start', (task, should) => {
|
| - var context = new OfflineAudioContext(1, renderDuration * sampleRate, sampleRate);
|
| - var dcOffsetbuffer = createConstantBuffer(context, 1, 1.0);
|
| - var source = context.createBufferSource();
|
| - source.buffer = dcOffsetbuffer;
|
| - source.loop = true;
|
| - source.connect(context.destination);
|
| -
|
| - // Schedule source.start(0) at 0.01 second. The specified timing of
|
| - // start() call is already passed in terms of the context time. So the
|
| - // argument |0| will be clamped to the current context time.
|
| - //
|
| - // With the sample rate of 44100, 0.01 second is 441 samples. Rounding
|
| - // it down to the render quantum gives 384 samples. This is clearly larger
|
| - // than a single render quantum.
|
| - //
|
| - // See issue: crbug.com/462167
|
| - context.suspend(startTime).then(function () {
|
| - source.start(0);
|
| - context.resume();
|
| - });
|
| -
|
| - // Start rendering and verify result: this verifies if 1) the rendered
|
| - // buffer contains at least one non-zero value and 2) the non-zero value is
|
| - // found later than the first output sample.
|
| - context.startRendering().then(function (buffer) {
|
| + // Start rendering and verify result: this verifies if 1) the rendered
|
| + // buffer contains at least one non-zero value and 2) the non-zero value
|
| + // is found later than the first output sample.
|
| + context.startRendering()
|
| + .then(function(buffer) {
|
|
|
| - var channelData = buffer.getChannelData(0);
|
| - var startIndex = getStartIndex(startTime);
|
| - var nonZeroValueIndex = getValueChangeIndex(channelData, 1.0);
|
| + let channelData = buffer.getChannelData(0);
|
| + let startIndex = getStartIndex(startTime);
|
| + let nonZeroValueIndex = getValueChangeIndex(channelData, 1.0);
|
|
|
| - should(channelData, 'The output').containValues([0, 1]);
|
| - should(nonZeroValueIndex, 'The index of value change')
|
| - .beEqualTo(startIndex);
|
| + should(channelData, 'The output').containValues([0, 1]);
|
| + should(nonZeroValueIndex, 'The index of value change')
|
| + .beEqualTo(startIndex);
|
|
|
| - should(nonZeroValueIndex, 'The index of the first non-zero sample')
|
| - .notBeEqualTo(0)
|
| -
|
| - }).then(() => task.done());
|
| - });
|
| + should(
|
| + nonZeroValueIndex, 'The index of the first non-zero sample')
|
| + .notBeEqualTo(0)
|
|
|
| - audit.run();
|
| - </script>
|
| -</body>
|
| + })
|
| + .then(() => task.done());
|
| + });
|
|
|
| + audit.run();
|
| + </script>
|
| + </body>
|
| </html>
|
|
|
Chromium Code Reviews
Issue 2895963003:
Apply layout-test-tidy to LayoutTests/webaudio (Closed)
