| Index: third_party/WebKit/LayoutTests/webaudio/realtimeanalyser-byte-data.html
|
| diff --git a/third_party/WebKit/LayoutTests/webaudio/realtimeanalyser-byte-data.html b/third_party/WebKit/LayoutTests/webaudio/realtimeanalyser-byte-data.html
|
| deleted file mode 100644
|
| index 9adbf37ca5c18c6dd79a4024af1130a92b61fba3..0000000000000000000000000000000000000000
|
| --- a/third_party/WebKit/LayoutTests/webaudio/realtimeanalyser-byte-data.html
|
| +++ /dev/null
|
| @@ -1,104 +0,0 @@
|
| -<!doctype html>
|
| -<html>
|
| - <head>
|
| - <script src="../resources/js-test.js"></script>
|
| - <script src="resources/compatibility.js"></script>
|
| - <script src="resources/audit-util.js"></script>
|
| - <script src="resources/audio-testing.js"></script>
|
| - <title>Test Analyser.getByteTimeDomainData()</title>
|
| - </head>
|
| -
|
| - <body>
|
| - <script>
|
| - description("Test AnalyserNode getByteTimeDomainData");
|
| - window.jsTestIsAsync = true;
|
| -
|
| - var sampleRate = 48000;
|
| - // The size of the analyser frame. Anything larger than 128 is ok, but should be long enough
|
| - // to capture the peaks of the oscillator waveform.
|
| - var fftSize = 256;
|
| - // Number of frames to render. Should be greater than the fftSize, but is otherwise
|
| - // arbitrary.
|
| - var renderFrames = 2 * fftSize;
|
| -
|
| - var audit = Audit.createTaskRunner();
|
| -
|
| - // Test that getByteTimeDomainData returns the correct values. This test depends on
|
| - // getFloatTimeDomainData returning the correct data (for which there is already a test).
|
| - audit.defineTask("byte-data", function (done) {
|
| - var context = new OfflineAudioContext(1, renderFrames, sampleRate);
|
| -
|
| - // Create a sawtooth as the signal under test. A sine wave or triangle wave would probably
|
| - // also work.
|
| - var src = context.createOscillator();
|
| - src.type = "sawtooth";
|
| - // Choose a frequency high enough that we get at least a full period in one analyser fftSize
|
| - // frame. Otherwise, the frequency is arbitrary.
|
| - src.frequency.value = 440;
|
| -
|
| - // Gain node to make sure the signal goes somewhat above 1, for testing clipping.
|
| - var gain = context.createGain();
|
| - gain.gain.value = 1.5;
|
| -
|
| - // The analyser node to test
|
| - var analyser = context.createAnalyser();
|
| - analyser.fftSize = fftSize;
|
| -
|
| - // Connect the graph.
|
| - src.connect(gain);
|
| - gain.connect(analyser);
|
| - analyser.connect(context.destination);
|
| -
|
| - // Stop rendering after one analyser frame so we can grab the data.
|
| - context.suspend(fftSize / sampleRate).then(function () {
|
| - var floatData = new Float32Array(fftSize);
|
| - var byteData = new Uint8Array(fftSize);
|
| -
|
| - analyser.getFloatTimeDomainData(floatData);
|
| - analyser.getByteTimeDomainData(byteData);
|
| -
|
| - // Use the float data to compute the expected value for the byte data.
|
| - var expected = new Float32Array(fftSize);
|
| - for (var k = 0; k < fftSize; ++k) {
|
| - // It's important to do Math.fround to match the single-precision float in the
|
| - // implementation!
|
| - var value = Math.fround(128 * Math.fround(1 + floatData[k]));
|
| - // Clip the result to lie in the range [0, 255].
|
| - expected[k] = Math.floor(Math.min(255, Math.max(0, value)));
|
| - }
|
| -
|
| - // Find the first index of the first sample that exceeds +1 or -1. The test MUST have at
|
| - // least one such value.
|
| - var indexMax = floatData.findIndex(function (x) { return x > 1; });
|
| - var indexMin = floatData.findIndex(function (x) { return x < -1; });
|
| -
|
| - Should("Index of first sample greater than +1", indexMax, {
|
| - brief: true
|
| - }).beGreaterThanOrEqualTo(0);
|
| - Should("Index of first sample less than -1", indexMin, {
|
| - brief: true
|
| - }).beGreaterThanOrEqualTo(0);
|
| -
|
| - // Verify explicitly that clipping happened correctly at the above indices.
|
| - Should("Clip " + floatData[indexMax].toPrecision(6) + ": byteData[" + indexMax + "]",
|
| - byteData[indexMax]).beEqualTo(255);
|
| - Should("Clip " + floatData[indexMin].toPrecision(6) + ": byteData[" + indexMin + "]",
|
| - byteData[indexMin]).beEqualTo(0);
|
| -
|
| - // Verify that all other samples are computed correctly.
|
| - Should("Byte data", byteData).beEqualToArray(expected);
|
| - }).then(context.resume.bind(context))
|
| -
|
| - src.start();
|
| - context.startRendering().then(done);
|
| - });
|
| -
|
| - audit.defineTask("finish", function (done) {
|
| - finishJSTest();
|
| - done();
|
| - });
|
| -
|
| - audit.runTasks();
|
| - </script>
|
| - </body>
|
| -</html>
|
|
|
Chromium Code Reviews
Issue 2581463002:
Refactor WebAudio test directory (Closed)
