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| 1 <!DOCTYPE html> | 1 <!DOCTYPE html> |
| 2 | 2 |
| 3 <html> | 3 <html> |
| 4 <head> | 4 <head> |
| 5 <script src="../../resources/js-test.js"></script> | 5 <script src="../../resources/testharness.js"></script> |
| 6 <script src="../../resources/testharnessreport.js"></script> |
| 6 <script src="../resources/audit-util.js"></script> | 7 <script src="../resources/audit-util.js"></script> |
| 7 <script src="../resources/audio-testing.js"></script> | 8 <script src="../resources/audit.js"></script> |
| 8 <script src="../resources/convolution-testing.js"></script> | 9 <script src="../resources/convolution-testing.js"></script> |
| 9 </head> | 10 </head> |
| 10 | 11 |
| 11 <body> | 12 <body> |
| 13 <script> |
| 14 let audit = Audit.createTaskRunner(); |
| 12 | 15 |
| 13 <div id="description"></div> | 16 //description("Tests ConvolverNode processing a mono channel with mono impulse r
esponse."); |
| 14 <div id="console"></div> | |
| 15 | |
| 16 <script> | |
| 17 description("Tests ConvolverNode processing a mono channel with mono impulse res
ponse."); | |
| 18 | 17 |
| 19 // To test the convolver, we convolve two square pulses together to | 18 // To test the convolver, we convolve two square pulses together to |
| 20 // produce a triangular pulse. To verify the result is correct we | 19 // produce a triangular pulse. To verify the result is correct we |
| 21 // check several parts of the result. First, we make sure the initial | 20 // check several parts of the result. First, we make sure the initial |
| 22 // part of the result is zero (due to the latency in the convolver). | 21 // part of the result is zero (due to the latency in the convolver). |
| 23 // Next, the triangular pulse should match the theoretical result to | 22 // Next, the triangular pulse should match the theoretical result to |
| 24 // within some roundoff. After the triangular pulse, the result | 23 // within some roundoff. After the triangular pulse, the result |
| 25 // should be exactly zero, but round-off prevents that. We make sure | 24 // should be exactly zero, but round-off prevents that. We make sure |
| 26 // the part after the pulse is sufficiently close to zero. Finally, | 25 // the part after the pulse is sufficiently close to zero. Finally, |
| 27 // the result should be exactly zero because the inputs are exactly | 26 // the result should be exactly zero because the inputs are exactly |
| 28 // zero. | 27 // zero. |
| 29 function runTest() { | 28 audit.define("test", function (task, should) { |
| 30 if (window.testRunner) { | |
| 31 testRunner.dumpAsText(); | |
| 32 testRunner.waitUntilDone(); | |
| 33 } | |
| 34 | |
| 35 window.jsTestIsAsync = true; | |
| 36 | |
| 37 // Create offline audio context. | 29 // Create offline audio context. |
| 38 var context = new OfflineAudioContext(2, sampleRate * renderLengthSeconds, s
ampleRate); | 30 var context = new OfflineAudioContext(2, sampleRate * renderLengthSeconds, s
ampleRate); |
| 39 | 31 |
| 40 var squarePulse = createSquarePulseBuffer(context, pulseLengthFrames); | 32 var squarePulse = createSquarePulseBuffer(context, pulseLengthFrames); |
| 41 var trianglePulse = createTrianglePulseBuffer(context, 2 * pulseLengthFrames
); | 33 var trianglePulse = createTrianglePulseBuffer(context, 2 * pulseLengthFrames
); |
| 42 | 34 |
| 43 var bufferSource = context.createBufferSource(); | 35 var bufferSource = context.createBufferSource(); |
| 44 bufferSource.buffer = squarePulse; | 36 bufferSource.buffer = squarePulse; |
| 45 | 37 |
| 46 var convolver = context.createConvolver(); | 38 var convolver = context.createConvolver(); |
| 47 convolver.normalize = false; | 39 convolver.normalize = false; |
| 48 convolver.buffer = squarePulse; | 40 convolver.buffer = squarePulse; |
| 49 | 41 |
| 50 bufferSource.connect(convolver); | 42 bufferSource.connect(convolver); |
| 51 convolver.connect(context.destination); | 43 convolver.connect(context.destination); |
| 52 | 44 |
| 53 bufferSource.start(0); | 45 bufferSource.start(0); |
| 54 | 46 |
| 55 context.oncomplete = checkConvolvedResult(trianglePulse); | 47 context.startRendering() |
| 56 context.startRendering(); | 48 .then(buffer => { |
| 57 } | 49 checkConvolvedResult(buffer, trianglePulse, should); |
| 50 }) |
| 51 .then(task.done.bind(task));; |
| 52 }); |
| 58 | 53 |
| 59 runTest(); | 54 audit.run(); |
| 60 successfullyParsed = true; | |
| 61 | |
| 62 </script> | 55 </script> |
| 63 | 56 |
| 64 </body> | 57 </body> |
| 65 </html> | 58 </html> |
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Chromium Code Reviews
Issue 2669293002:
Convert ConvolverNode tests to testharness (Closed)
