third_party/WebKit/LayoutTests/webaudio/audioparam-exponentialRampToValueAtTime.html - Issue 1377903002: Use frames instead of time for running AudioParam timelines.

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Issue 1377903002: Use frames instead of time for running AudioParam timelines. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Created 5 years, 2 months ago

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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.exponentialRampToValueAtTime</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 exponentialRampToValueAtTime() functionality. ");	16 description("Test AudioParam exponentialRampToValueAtTime() functionality. ");

16	17

17 // Play a long DC signal out through an AudioGainNode, and call setValueAt Time() and	18 // Play a long DC signal out through an AudioGainNode, and call setValueAt Time() and

18 // exponentialRampToValueAtTime() at regular intervals to set the starting and ending values	19 // exponentialRampToValueAtTime() at regular intervals to set the starting and ending values

19 // for an exponential ramp. Each time interval has a ramp with a differen t starting and	20 // for an exponential ramp. Each time interval has a ramp with a differen t starting and

20 // ending value so that there is a discontinuity at each time interval bou ndary. The	21 // ending value so that there is a discontinuity at each time interval bou ndary. The

21 // discontinuity is for testing timing. Also, we alternate between an inc reasing and	22 // discontinuity is for testing timing. Also, we alternate between an inc reasing and

22 // decreasing ramp for each interval.	23 // decreasing ramp for each interval.

23	24

24 // Number of tests to run.	25 // Number of tests to run.

25 var numberOfTests = 100;	26 var numberOfTests = 100;

26	27

27 // Max allowed difference between the rendered data and the expected resul t.	28 // Max allowed difference between the rendered data and the expected resul t.

28 var maxAllowedError = 6.75e-4;	29 var maxAllowedError = 1.222e-5;

29	30

30 // The AudioGainNode starts with this value instead of the default value.	31 // The AudioGainNode starts with this value instead of the default value.

31 var initialValue = 100;	32 var initialValue = 100;

32	33

33 // Set the gain node value to the specified value at the specified time.	34 // Set the gain node value to the specified value at the specified time.

34 function setValue(value, time)	35 function setValue(value, time)

35 {	36 {

36 gainNode.gain.setValueAtTime(value, time);	37 gainNode.gain.setValueAtTime(value, time);

37 }	38 }

38	39

(...skipping 17 matching lines...) Expand all Loading...
56	57

57 }	58 }

58	59

59 runTest();	60 runTest();

60 successfullyParsed = true;	61 successfullyParsed = true;

61	62

62 </script>	63 </script>

63	64

64 </body>	65 </body>

65 </html>	66 </html>

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