| Index: third_party/WebKit/LayoutTests/webaudio/AudioBufferSource/audiobuffersource-playbackrate-zero.html
|
| diff --git a/third_party/WebKit/LayoutTests/webaudio/AudioBufferSource/audiobuffersource-playbackrate-zero.html b/third_party/WebKit/LayoutTests/webaudio/AudioBufferSource/audiobuffersource-playbackrate-zero.html
|
| index b4b92dfe712f91cba1986417430860d565cef4b7..cf60ca4a6dc5ebfe2b2d4bf6f62c3c160154aae0 100644
|
| --- a/third_party/WebKit/LayoutTests/webaudio/AudioBufferSource/audiobuffersource-playbackrate-zero.html
|
| +++ b/third_party/WebKit/LayoutTests/webaudio/AudioBufferSource/audiobuffersource-playbackrate-zero.html
|
| @@ -1,78 +1,80 @@
|
| <!DOCTYPE html>
|
| <html>
|
| + <head>
|
| + <title>
|
| + audiobuffersource-playbackrate-zero.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">
|
| + // Sample rate should be power of 128 to observe the change of AudioParam
|
| + // at the beginning of rendering quantum. (playbackRate is k-rate) This is
|
| + // the minimum sample rate in the valid sample rate range.
|
| + let sampleRate = 4096;
|
|
|
| -<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>
|
| + // The render duration in seconds, and the length in samples.
|
| + let renderDuration = 1.0;
|
| + let renderLength = renderDuration * sampleRate;
|
|
|
| -<body>
|
| - <script>
|
| + let context = new OfflineAudioContext(1, renderLength, sampleRate);
|
| + let audit = Audit.createTaskRunner();
|
|
|
| - // Sample rate should be power of 128 to observe the change of AudioParam at
|
| - // the beginning of rendering quantum. (playbackRate is k-rate) This is the
|
| - // minimum sample rate in the valid sample rate range.
|
| - let sampleRate = 4096;
|
|
|
| - // The render duration in seconds, and the length in samples.
|
| - let renderDuration = 1.0;
|
| - let renderLength = renderDuration * sampleRate;
|
| + // Task: Render the actual buffer and compare with the reference.
|
| + audit.define('synthesize-verify', (task, should) => {
|
| + let ramp = context.createBufferSource();
|
| + let rampBuffer = createLinearRampBuffer(context, renderLength);
|
| + ramp.buffer = rampBuffer;
|
|
|
| - let context = new OfflineAudioContext(1, renderLength, sampleRate);
|
| - let audit = Audit.createTaskRunner();
|
| + ramp.connect(context.destination);
|
| + ramp.start();
|
|
|
| + // Leave the playbackRate as 1 for the first half, then change it
|
| + // to zero at the exact half. The zero playback rate should hold the
|
| + // sample value of the buffer index at the moment. (sample-and-hold)
|
| + ramp.playbackRate.setValueAtTime(1.0, 0.0);
|
| + ramp.playbackRate.setValueAtTime(0.0, renderDuration / 2);
|
|
|
| - // Task: Render the actual buffer and compare with the reference.
|
| - audit.define('synthesize-verify', (task, should) => {
|
| - let ramp = context.createBufferSource();
|
| - let rampBuffer = createLinearRampBuffer(context, renderLength);
|
| - ramp.buffer = rampBuffer;
|
| + context.startRendering()
|
| + .then(function(renderedBuffer) {
|
| + let data = renderedBuffer.getChannelData(0);
|
| + let rampData = rampBuffer.getChannelData(0);
|
| + let half = rampData.length / 2;
|
| + let passed = true;
|
| + let i;
|
|
|
| - ramp.connect(context.destination);
|
| - ramp.start();
|
| + for (i = 1; i < rampData.length; i++) {
|
| + if (i < half) {
|
| + // Before the half position, the actual should match with the
|
| + // original ramp data.
|
| + if (data[i] !== rampData[i]) {
|
| + passed = false;
|
| + break;
|
| + }
|
| + } else {
|
| + // From the half position, the actual value should not change.
|
| + if (data[i] !== rampData[half]) {
|
| + passed = false;
|
| + break;
|
| + }
|
| + }
|
| + }
|
|
|
| - // Leave the playbackRate as 1 for the first half, then change it
|
| - // to zero at the exact half. The zero playback rate should hold the
|
| - // sample value of the buffer index at the moment. (sample-and-hold)
|
| - ramp.playbackRate.setValueAtTime(1.0, 0.0);
|
| - ramp.playbackRate.setValueAtTime(0.0, renderDuration / 2);
|
| -
|
| - context.startRendering().then(function (renderedBuffer) {
|
| - let data = renderedBuffer.getChannelData(0);
|
| - let rampData = rampBuffer.getChannelData(0);
|
| - let half = rampData.length / 2;
|
| - let passed = true;
|
| - let i;
|
| -
|
| - for (i = 1; i < rampData.length; i++) {
|
| - if (i < half) {
|
| - // Before the half position, the actual should match with the
|
| - // original ramp data.
|
| - if (data[i] !== rampData[i]) {
|
| - passed = false;
|
| - break;
|
| - }
|
| - } else {
|
| - // From the half position, the actual value should not change.
|
| - if (data[i] !== rampData[half]) {
|
| - passed = false;
|
| - break;
|
| - }
|
| - }
|
| - }
|
| -
|
| - should(passed, 'The zero playbackRate')
|
| - .message(
|
| - 'held the sample value correctly',
|
| - 'should hold the sample value. ' + 'Expected ' + rampData[half] +
|
| - ' but got ' + data[i] + ' at the index ' + i);
|
| - }).then(() => task.done());
|
| - });
|
| -
|
| - audit.run();
|
| - </script>
|
| -</body>
|
| + should(passed, 'The zero playbackRate')
|
| + .message(
|
| + 'held the sample value correctly',
|
| + 'should hold the sample value. ' +
|
| + 'Expected ' + rampData[half] + ' but got ' + data[i] +
|
| + ' at the index ' + i);
|
| + })
|
| + .then(() => task.done());
|
| + });
|
|
|
| + audit.run();
|
| + </script>
|
| + </body>
|
| </html>
|
|
|
Chromium Code Reviews
Issue 2895963003:
Apply layout-test-tidy to LayoutTests/webaudio (Closed)
