| Index: third_party/WebKit/LayoutTests/webaudio/ChannelMerger/audiochannelmerger-cycle.html
|
| diff --git a/third_party/WebKit/LayoutTests/webaudio/ChannelMerger/audiochannelmerger-cycle.html b/third_party/WebKit/LayoutTests/webaudio/ChannelMerger/audiochannelmerger-cycle.html
|
| index d6950f469d17867083534dfd2271e0ff3c165995..aecfef2bdd9ff8ac12b9b2a8aa02a0266cf3b13b 100644
|
| --- a/third_party/WebKit/LayoutTests/webaudio/ChannelMerger/audiochannelmerger-cycle.html
|
| +++ b/third_party/WebKit/LayoutTests/webaudio/ChannelMerger/audiochannelmerger-cycle.html
|
| @@ -1,87 +1,83 @@
|
| <!DOCTYPE html>
|
| <html>
|
| + <head>
|
| + <title>
|
| + audiochannelmerger-cycle.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">
|
| + // This specific sample rate is chosen to avoid the round/truncation error
|
| + // in delay time. See: crbug.com/448801
|
| + let sampleRate = 32768;
|
| +
|
| + // Web Audio API's rendering quantum.
|
| + let renderingQuantum = 128;
|
| +
|
| + // 4x of rendering quantum. This is to make the rendered result long
|
| + // enough so that we can observe the delayed output.
|
| + let renderLength = renderingQuantum * 4;
|
| +
|
| + // 1x rendering quantum of delay.
|
| + let delayTime = renderingQuantum / sampleRate;
|
| +
|
| + // Use 2 channels as a test case.
|
| + let numberOfChannels = 2;
|
| +
|
| + let audit = Audit.createTaskRunner();
|
| +
|
| + audit.define('merger-cyclic-graph', (task, should) => {
|
| +
|
| + let context =
|
| + new OfflineAudioContext(numberOfChannels, renderLength, sampleRate);
|
| + let merger = context.createChannelMerger(2);
|
| + let delay = context.createDelay();
|
| + let source = context.createBufferSource();
|
| +
|
| + // Create a mono source buffer filled with '1'.
|
| + source.buffer = createConstantBuffer(context, renderLength, [1]);
|
| +
|
| + delay.delayTime.value = delayTime;
|
| +
|
| + // Connect the source to input 0 of the merger. Connect the output of
|
| + // the merger to a delay node whose output is then connected to input 1
|
| + // of the merger. See: crbug.com/442925
|
| + source.connect(merger, 0, 0);
|
| + delay.connect(merger, 0, 1);
|
| + merger.connect(delay);
|
| + merger.connect(context.destination);
|
| + source.start();
|
| +
|
| + context.startRendering().then(function(buffer) {
|
| + // Expected output values: the output of delay node will be a stereo
|
| + // signal of [1, 0]. When it feeds back to the 2nd input of merger
|
| + // node, the stereo channel will be summed to mono resulting in 0.5.
|
| + let expected_left = [];
|
| + let expected_right = [];
|
| +
|
| + for (let i = 0; i < renderLength; i++) {
|
| + // Note that the delayed channel will be zero for the first 128
|
| + // samples due to the cyclic audio graph, the second 128 sample will
|
| + // be also zero because of 128 samples delay.
|
| + expected_left[i] = 1.0;
|
| + expected_right[i] = (i < renderingQuantum * 2) ? 0.0 : 0.5;
|
| + }
|
| +
|
| + let actual_left = buffer.getChannelData(0);
|
| + let actual_right = buffer.getChannelData(1);
|
| + should(actual_left, 'Left channel').beEqualToArray(expected_left);
|
| + should(actual_right, 'Right channel').beEqualToArray(expected_right);
|
| +
|
| + task.done();
|
| + });
|
|
|
| -<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>
|
| -
|
| -<body>
|
| - <script>
|
| -
|
| - // This specific sample rate is chosen to avoid the round/truncation error
|
| - // in delay time. See: crbug.com/448801
|
| - var sampleRate = 32768;
|
| -
|
| - // Web Audio API's rendering quantum.
|
| - var renderingQuantum = 128;
|
| -
|
| - // 4x of rendering quantum. This is to make the rendered result long enough
|
| - // so that we can observe the delayed output.
|
| - var renderLength = renderingQuantum * 4;
|
| -
|
| - // 1x rendering quantum of delay.
|
| - var delayTime = renderingQuantum / sampleRate;
|
| -
|
| - // Use 2 channels as a test case.
|
| - var numberOfChannels = 2;
|
| -
|
| - var audit = Audit.createTaskRunner();
|
| -
|
| - audit.define('merger-cyclic-graph', (task, should) => {
|
| -
|
| - var context = new OfflineAudioContext(
|
| - numberOfChannels, renderLength, sampleRate
|
| - );
|
| - var merger = context.createChannelMerger(2);
|
| - var delay = context.createDelay();
|
| - var source = context.createBufferSource();
|
| -
|
| - // Create a mono source buffer filled with '1'.
|
| - source.buffer = createConstantBuffer(context, renderLength, [1]);
|
| -
|
| - delay.delayTime.value = delayTime;
|
| -
|
| - // Connect the source to input 0 of the merger. Connect the output of
|
| - // the merger to a delay node whose output is then connected to input 1
|
| - // of the merger. See: crbug.com/442925
|
| - source.connect(merger, 0, 0);
|
| - delay.connect(merger, 0, 1);
|
| - merger.connect(delay);
|
| - merger.connect(context.destination);
|
| - source.start();
|
| -
|
| - context.startRendering().then(function (buffer) {
|
| - // Expected output values: the output of delay node will be a stereo
|
| - // signal of [1, 0]. When it feeds back to the 2nd input of merger node,
|
| - // the stereo channel will be summed to mono resulting in 0.5.
|
| - var expected_left = [];
|
| - var expected_right = [];
|
| -
|
| - for (var i = 0; i < renderLength; i++) {
|
| - // Note that the delayed channel will be zero for the first 128 samples
|
| - // due to the cyclic audio graph, the second 128 sample will be also
|
| - // zero because of 128 samples delay.
|
| - expected_left[i] = 1.0;
|
| - expected_right[i] = (i < renderingQuantum * 2) ? 0.0 : 0.5;
|
| - }
|
| -
|
| - var actual_left = buffer.getChannelData(0);
|
| - var actual_right = buffer.getChannelData(1);
|
| - should(actual_left, "Left channel")
|
| - .beEqualToArray(expected_left);
|
| - should(actual_right, "Right channel")
|
| - .beEqualToArray(expected_right);
|
| -
|
| - task.done();
|
| });
|
|
|
| - });
|
| -
|
| - audit.run();
|
| - </script>
|
| -</body>
|
| -
|
| + audit.run();
|
| + </script>
|
| + </body>
|
| </html>
|
|
|
Chromium Code Reviews
Issue 2895963003:
Apply layout-test-tidy to LayoutTests/webaudio (Closed)
