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| 1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> | 1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> |
| 2 <html> | 2 <html> |
| 3 <head> | 3 <head> |
| 4 <script src="resources/compatibility.js"></script> | 4 <script src="resources/compatibility.js"></script> |
| 5 <script src="resources/audio-testing.js"></script> | 5 <script src="resources/audio-testing.js"></script> |
| 6 <script src="resources/audioparam-testing.js"></script> | 6 <script src="resources/audioparam-testing.js"></script> |
| 7 <script src="../resources/js-test.js"></script> | 7 <script src="../resources/js-test.js"></script> |
| 8 <title>Test AudioParam.setValueCurveAtTime</title> |
| 8 </head> | 9 </head> |
| 9 | 10 |
| 10 <body> | 11 <body> |
| 11 <div id="description"></div> | 12 <div id="description"></div> |
| 12 <div id="console"></div> | 13 <div id="console"></div> |
| 13 | 14 |
| 14 <script> | 15 <script> |
| 15 description("Test AudioParam setValueCurveAtTime() functionality."); | 16 description("Test AudioParam setValueCurveAtTime() functionality."); |
| 16 | 17 |
| 17 // Play a long DC signal out through an AudioGainNode and for each time interval
call | 18 // Play a long DC signal out through an AudioGainNode and for each time interval
call |
| (...skipping 17 matching lines...) Expand all Loading... |
| 35 | 36 |
| 36 // Curve to use for setValueCurveAtTime(). | 37 // Curve to use for setValueCurveAtTime(). |
| 37 var curve; | 38 var curve; |
| 38 | 39 |
| 39 // Sets the curve data for the entire time interval. | 40 // Sets the curve data for the entire time interval. |
| 40 function automation(value, startTime, endTime) | 41 function automation(value, startTime, endTime) |
| 41 { | 42 { |
| 42 gainNode.gain.setValueCurveAtTime(curve, startTime, endTime - startTime); | 43 gainNode.gain.setValueCurveAtTime(curve, startTime, endTime - startTime); |
| 43 } | 44 } |
| 44 | 45 |
| 45 // Create a sine wave of the specified duration. | |
| 46 function createReferenceSineArray(startTime, endTime, startValue, endValue, samp
leRate) | |
| 47 { | |
| 48 // Ignore |startValue| and |endValue| for the sine wave. | |
| 49 return createSineWaveArray(endTime - startTime, freqHz, sineAmplitude, sampl
eRate); | |
| 50 } | |
| 51 | |
| 52 function runTest() | 46 function runTest() |
| 53 { | 47 { |
| 54 // The curve of values to use. | 48 // The curve of values to use. |
| 55 curve = createSineWaveArray(timeInterval, freqHz, sineAmplitude, sampleRate)
; | 49 curve = createSineWaveArray(timeInterval, freqHz, sineAmplitude, sampleRate)
; |
| 56 | 50 |
| 57 createAudioGraphAndTest(numberOfTests, | 51 createAudioGraphAndTest(numberOfTests, |
| 58 sineAmplitude, | 52 sineAmplitude, |
| 59 function(k) { | 53 function(k) { |
| 60 // Don't need to set the value. | 54 // Don't need to set the value. |
| 61 }, | 55 }, |
| 62 automation, | 56 automation, |
| 63 "setValueCurveAtTime()", | 57 "setValueCurveAtTime()", |
| 64 maxAllowedError, | 58 maxAllowedError, |
| 65 createReferenceSineArray, | 59 createReferenceSineArray, |
| 66 2 * Math.PI * sineAmplitude * freqHz / sampleRate); | 60 2 * Math.PI * sineAmplitude * freqHz / sampleRate, |
| 61 differenceErrorMetric); |
| 67 } | 62 } |
| 68 | 63 |
| 69 runTest(); | 64 runTest(); |
| 70 successfullyParsed = true; | 65 successfullyParsed = true; |
| 71 | 66 |
| 72 </script> | 67 </script> |
| 73 | 68 |
| 74 </body> | 69 </body> |
| 75 </html> | 70 </html> |
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Chromium Code Reviews
Issue 1377903002:
Use frames instead of time for running AudioParam timelines. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master