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| 1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> | |
| 2 <html> | |
| 3 <head> | |
| 4 <script src="../resources/js-test.js"></script> | |
| 5 <script src="resources/compatibility.js"></script> | |
| 6 <script src="resources/audit-util.js"></script> | |
| 7 <script src="resources/audio-testing.js"></script> | |
| 8 <script src="resources/audioparam-testing.js"></script> | |
| 9 </head> | |
| 10 | |
| 11 <body> | |
| 12 <div id="description"></div> | |
| 13 <div id="console"></div> | |
| 14 | |
| 15 <script> | |
| 16 description("Test AudioParam setValueAtTime() functionality."); | |
| 17 | |
| 18 // Play a long DC signal out through an AudioGainNode, and call setValueAtTime()
at regular | |
| 19 // intervals to set the value for the duration of the interval. Each time inter
val has | |
| 20 // different value so that there is a discontinuity at each time interval bounda
ry. The | |
| 21 // discontinuity is for testing timing. | |
| 22 | |
| 23 // Number of tests to run. | |
| 24 var numberOfTests = 100; | |
| 25 | |
| 26 // Max allowed difference between the rendered data and the expected result. | |
| 27 var maxAllowedError = 6e-8; | |
| 28 | |
| 29 // Set the gain node value to the specified value at the specified time. | |
| 30 function setValue(value, time) | |
| 31 { | |
| 32 gainNode.gain.setValueAtTime(value, time); | |
| 33 } | |
| 34 | |
| 35 // For testing setValueAtTime(), we don't need to do anything for automation. be
cause the value at | |
| 36 // the beginning of the interval is set by setValue and it remains constant for
the duration, which | |
| 37 // is what we want. | |
| 38 function automation(value, startTime, endTime) | |
| 39 { | |
| 40 // Do nothing. | |
| 41 } | |
| 42 | |
| 43 function runTest() | |
| 44 { | |
| 45 createAudioGraphAndTest(numberOfTests, | |
| 46 1, | |
| 47 setValue, | |
| 48 automation, | |
| 49 "setValueAtTime()", | |
| 50 maxAllowedError, | |
| 51 createConstantArray); | |
| 52 } | |
| 53 | |
| 54 runTest(); | |
| 55 successfullyParsed = true; | |
| 56 | |
| 57 </script> | |
| 58 | |
| 59 </body> | |
| 60 </html> | |
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Chromium Code Reviews
Issue 2581463002:
Refactor WebAudio test directory (Closed)
