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| author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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| committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
| commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
| tree | 10027f336435511475e392454359edea8e25895d /testing/web-platform/tests/webaudio/the-audio-api/the-mediaelementaudiosourcenode-interface | |
| parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
| download | UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip | |
Add m-esr52 at 52.6.0
Diffstat (limited to 'testing/web-platform/tests/webaudio/the-audio-api/the-mediaelementaudiosourcenode-interface')
2 files changed, 124 insertions, 0 deletions
diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-mediaelementaudiosourcenode-interface/.gitkeep b/testing/web-platform/tests/webaudio/the-audio-api/the-mediaelementaudiosourcenode-interface/.gitkeep new file mode 100644 index 000000000..e69de29bb --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-mediaelementaudiosourcenode-interface/.gitkeep diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-mediaelementaudiosourcenode-interface/mediaElementAudioSourceToScriptProcessorTest.html b/testing/web-platform/tests/webaudio/the-audio-api/the-mediaelementaudiosourcenode-interface/mediaElementAudioSourceToScriptProcessorTest.html new file mode 100644 index 000000000..ba6eec668 --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-mediaelementaudiosourcenode-interface/mediaElementAudioSourceToScriptProcessorTest.html @@ -0,0 +1,124 @@ +<!doctype html> + +<!-- +Tests that a create MediaElementSourceNode that is passed through +a script processor passes the stream data. +The the script processor saves the input buffers it gets to a temporary +array, and after the playback has stopped, the contents are compared +to those of a loaded AudioBuffer with the same source. + +Somewhat similiar to a test from Mozilla: +(http://dxr.mozilla.org/mozilla-central/source/content/media/webaudio/test/test_mediaElementAudioSourceNode.html?force=1) +--> + +<html class="a"> + <head> + <title>MediaElementAudioSource interface test (to scriptProcessor)</title> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="/webaudio/js/lodash.js"></script> + <script src="/webaudio/js/vendor-prefixes.js"></script> + <script src="/webaudio/js/helpers.js"></script> + <script src="/webaudio/js/buffer-loader.js"></script> + </head> + <body class="a"> + <div id="log"></div> + <script> + var elementSourceTest = async_test("Element Source tests completed"); + + var src = '/webaudio/resources/sin_440Hz_-6dBFS_1s.wav'; + var BUFFER_SIZE = 2048; + var context = null; + var actualBufferArrayC0 = new Float32Array(0); + var actualBufferArrayC1 = new Float32Array(0); + var audio = null, source = null, processor = null + + function loadExpectedBuffer(event) { + bufferLoader = new BufferLoader( + context, + [src], + bufferLoadCompleted + ); + bufferLoader.load(); + }; + + function bufferLoadCompleted(buffer) { + runTests(buffer); + }; + + function concatTypedArray(arr1, arr2) { + var result = new Float32Array(arr1.length + arr2.length); + result.set(arr1); + result.set(arr2, arr1.length); + return result; + } + + // Create Audio context + context = new AudioContext(); + + // Create an audio element, and a media element source + audio = document.createElement('audio'); + audio.src = src; + source = context.createMediaElementSource(audio); + +function processListener (e) { + actualBufferArrayC0 = concatTypedArray(actualBufferArrayC0, e.inputBuffer.getChannelData(0)); + actualBufferArrayC1 = concatTypedArray(actualBufferArrayC1, e.inputBuffer.getChannelData(1)); +} + + // Create a processor node to copy the input to the actual buffer + processor = context.createScriptProcessor(BUFFER_SIZE); + source.connect(processor); + processor.connect(context.destination); + processor.addEventListener('audioprocess', processListener); + + // When media playback ended, save the begin to compare with expected buffer + audio.addEventListener("ended", function(e) { + // Setting a timeout since we need audioProcess event to run for all samples + window.setTimeout(loadExpectedBuffer, 50); + }); + + audio.play(); + + function runTests(expected) { + source.disconnect(); + processor.disconnect(); + + // firefox seems to process events after disconnect + processor.removeEventListener('audioprocess', processListener) + + var expectedBuffer = expected[0]; + + // Trim the actual elements because we don't have a fine-grained + // control over the start and end time of recording the data. + var actualTrimmedC0 = trimEmptyElements(actualBufferArrayC0); + var actualTrimmedC1 = trimEmptyElements(actualBufferArrayC1); + var expectedLength = trimEmptyElements(expectedBuffer.getChannelData(0)).length; + + // Test that there is some data. + test(function() { + assert_greater_than(actualTrimmedC0.length, 0, + "processed data array (C0) length greater than 0"); + assert_greater_than(actualTrimmedC1.length, 0, + "processed data array (C1) length greater than 0"); + }, "Channel 0 processed some data"); + + // Test the actual contents of the 1st and second channel. + test(function() { + assert_array_approx_equals( + actualTrimmedC0, + trimEmptyElements(expectedBuffer.getChannelData(0)), + 1e-4, + "comparing expected and rendered buffers (channel 0)"); + assert_array_approx_equals( + actualTrimmedC1, + trimEmptyElements(expectedBuffer.getChannelData(1)), + 1e-4, + "comparing expected and rendered buffers (channel 1)"); + }, "All data processed correctly"); + + elementSourceTest.done(); + }; + </script> + </body> +</html> |