LayoutTests/webaudio/deprecated-audiobuffersource-looping.html - Issue 140973002: Remove AudioBufferSourceNode.looping

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Issue 140973002: Remove AudioBufferSourceNode.looping (Closed) Base URL: svn://svn.chromium.org/blink/trunk

Patch Set: remove looping test Created 6 years, 11 months ago

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1 <!DOCTYPE html>

2

3 <html>

4 <head>

5 <script src="resources/audio-testing.js"></script>

6 <script src="resources/audiobuffersource-testing.js"></script>

7 <script src="../resources/js-test.js"></script>

8 </head>

9

10 <body>

11

12 <div id="description"></div>

13 <div id="console"></div>

14

15 <script>

16 description("Tests AudioBufferSourceNode looping with a variety of loop points." );

17

18 // The following test cases assume an AudioBuffer of length 8 whose PCM data is a linear ramp, 0, 1, 2, 3,...

19

20 var tests = [

21

22 { description: "loop whole buffer by default with loopStart == loopEnd == 0",

23 loopStartFrame: 0, loopEndFrame: 0, renderFrames: 16, playbackRate: 1, expecte d: [0,1,2,3,4,5,6,7,0,1,2,3,4,5,6,7] },

24

25 { description: "loop whole buffer explicitly",

26 loopStartFrame: 0, loopEndFrame: 8, renderFrames: 16, playbackRate: 1, expecte d: [0,1,2,3,4,5,6,7,0,1,2,3,4,5,6,7] },

27

28 { description: "loop from middle to end of buffer",

29 loopStartFrame: 4, loopEndFrame: 8, renderFrames: 16, playbackRate: 1, expecte d: [0,1,2,3,4,5,6,7,4,5,6,7,4,5,6,7] },

30

31 { description: "loop from start to middle of buffer",

32 loopStartFrame: 0, loopEndFrame: 4, renderFrames: 16, playbackRate: 1, expecte d: [0,1,2,3,0,1,2,3,0,1,2,3,0,1,2,3] },

33

34 { description: "loop internally from 4 -> 6",

35 loopStartFrame: 4, loopEndFrame: 6, renderFrames: 16, playbackRate: 1, expecte d: [0,1,2,3,4,5,4,5,4,5,4,5,4,5,4,5] },

36

37 { description: "loop internally from 3 -> 7",

38 loopStartFrame: 3, loopEndFrame: 7, renderFrames: 16, playbackRate: 1, expecte d: [0,1,2,3,4,5,6,3,4,5,6,3,4,5,6,3] },

39

40 { description: "loop internally from 4 -> 6 with playbackRate of 0.5",

41 loopStartFrame: 4, loopEndFrame: 6, renderFrames: 16, playbackRate: 0.5, expec ted: [0, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 4, 4.5, 5, 5.5] },

42

43 { description: "loop internally from 4 -> 6 with playbackRate of 1.5",

44 loopStartFrame: 4, loopEndFrame: 6, renderFrames: 16, playbackRate: 1.5, expec ted: [0, 1.5, 3, 4.5, 4, 5.5, 5, 4.5, 4, 5.5, 5, 4.5, 4, 5.5, 5, 4.5] },

45

46 { description: "illegal playbackRate of 47 greater than loop length",

47 loopStartFrame: 4, loopEndFrame: 6, renderFrames: 16, playbackRate: 47, expect ed: [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0] },

48

49 // Try illegal loop-points - they should be ignored and we'll loop the whole buf fer.

50

51 { description: "illegal loop: loopStartFrame > loopEndFrame",

52 loopStartFrame: 7, loopEndFrame: 3, renderFrames: 16, playbackRate: 1, expecte d: [0,1,2,3,4,5,6,7,0,1,2,3,4,5,6,7] },

53

54 { description: "illegal loop: loopStartFrame == loopEndFrame",

55 loopStartFrame: 3, loopEndFrame: 3, renderFrames: 16, playbackRate: 1, expecte d: [0,1,2,3,4,5,6,7,0,1,2,3,4,5,6,7] },

56

57 { description: "illegal loop: loopStartFrame < 0",

58 loopStartFrame: -45, loopEndFrame: 3, renderFrames: 16, playbackRate: 1, expec ted: [0,1,2,3,4,5,6,7,0,1,2,3,4,5,6,7] },

59

60 { description: "illegal loop: loopEndFrame > bufferLength",

61 loopStartFrame: 0, loopEndFrame: 30000, renderFrames: 16, playbackRate: 1, exp ected: [0,1,2,3,4,5,6,7,0,1,2,3,4,5,6,7] },

62

63 ];

64

65 var sampleRate = 44100;

66 var buffer;

67 var bufferFrameLength = 8;

68 var testSpacingFrames = 32;

69 var testSpacingSeconds = testSpacingFrames / sampleRate;

70 var totalRenderLengthFrames = tests.length * testSpacingFrames;

71

72 function runLoopTest(context, testNumber, test) {

73 var source = context.createBufferSource();

74

75 source.buffer = buffer;

76 source.playbackRate.value = test.playbackRate;

77 source.looping = true;

78 source.loopStart = test.loopStartFrame / context.sampleRate;

79 source.loopEnd = test.loopEndFrame / context.sampleRate;

80

81 source.connect(context.destination);

82

83 // Render each test one after the other, spaced apart by testSpacingSeconds.

84 var startTime = testNumber * testSpacingSeconds;

85 var duration = test.renderFrames / context.sampleRate;

86 source.start(startTime);

87 source.stop(startTime + duration);

88 }

89

90 function runTest() {

91 if (window.testRunner) {

92 testRunner.dumpAsText();

93 testRunner.waitUntilDone();

94 }

95

96 window.jsTestIsAsync = true;

97

98 // Create offline audio context.

99 var context = new webkitOfflineAudioContext(1, totalRenderLengthFrames, samp leRate);

100 buffer = createTestBuffer(context, bufferFrameLength);

101

102 for (var i = 0; i < tests.length; ++i)

103 runLoopTest(context, i, tests[i]);

104

105 context.oncomplete = checkAllTests;

106 context.startRendering();

107 }

108

109 runTest();

110 successfullyParsed = true;

111

112 </script>

113

114 </body>

115 </html>

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