third_party/WebKit/LayoutTests/webaudio/audiobuffersource-start.html - Issue 2581463002: Refactor WebAudio test directory

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Issue 2581463002: Refactor WebAudio test directory (Closed)

Patch Set: Use correct path for wav result files Created 3 years, 12 months ago

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1 <!DOCTYPE html>

2

3 <html>

4 <head>

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

6 <script src="resources/compatibility.js"></script>

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

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

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

10 </head>

11

12 <body>

13

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

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

16

17 <script>

18 description("Tests AudioBufferSourceNode start() with a variety of offsets and d urations.");

19

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

21

22 var tests = [

23

24 { description: "start(when): implicitly play whole buffer from beginning to end" ,

25 offsetFrame: "none", durationFrames: "none", renderFrames: 16, playbackRate: 1 , expected: [0,1,2,3,4,5,6,7,0,0,0,0,0,0,0,0] },

26

27 { description: "start(when, 0): play whole buffer from beginning to end explicit ly giving offset of 0",

28 offsetFrame: 0, durationFrames: "none", renderFrames: 16, playbackRate: 1, exp ected: [0,1,2,3,4,5,6,7,0,0,0,0,0,0,0,0] },

29

30 { description: "start(when, 0, 8_frames): play whole buffer from beginning to en d explicitly giving offset of 0 and duration of 8 frames",

31 offsetFrame: 0, durationFrames: 8, renderFrames: 16, playbackRate: 1, expected : [0,1,2,3,4,5,6,7,0,0,0,0,0,0,0,0] },

32

33 { description: "start(when, 4_frames): play with explicit non-zero offset",

34 offsetFrame: 4, durationFrames: "none", renderFrames: 16, playbackRate: 1, exp ected: [4,5,6,7,0,0,0,0,0,0,0,0,0,0,0,0] },

35

36 { description: "start(when, 4_frames, 4_frames): play with explicit non-zero off set and duration",

37 offsetFrame: 4, durationFrames: 4, renderFrames: 16, playbackRate: 1, expected : [4,5,6,7,0,0,0,0,0,0,0,0,0,0,0,0] },

38

39 { description: "start(when, 7_frames): play with explicit non-zero offset near e nd of buffer",

40 offsetFrame: 7, durationFrames: 1, renderFrames: 16, playbackRate: 1, expected : [7,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0] },

41

42 { description: "start(when, 8_frames): play with explicit offset at end of buffe r",

43 offsetFrame: 8, durationFrames: 0, renderFrames: 16, playbackRate: 1, expected : [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0] },

44

45 { description: "start(when, 9_frames): play with explicit offset past end of buf fer",

46 offsetFrame: 8, durationFrames: 0, renderFrames: 16, playbackRate: 1, expected : [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0] },

47

48 // When the duration exceeds the buffer, just play to the end of the buffer.

49 // (This is different from the case when we're looping, which is tested in loop- comprehensive.)

50 { description: "start(when, 0, 15_frames): play with whole buffer, with long dur ation (clipped)",

51 offsetFrame: 0, durationFrames: 15, renderFrames: 16, playbackRate: 1, expecte d: [0,1,2,3,4,5,6,7,0,0,0,0,0,0,0,0] },

52

53 // Enable test when AudioBufferSourceNode hack is fixed: https://bugs.webkit.org /show_bug.cgi?id=77224

54 // { description: "start(when, 3_frames, 3_frames): play a middle section with e xplicit offset and duration",

55 // offsetFrame: 3, durationFrames: 3, renderFrames: 16, playbackRate: 1, expec ted: [4,5,6,7,0,0,0,0,0,0,0,0,0,0,0,0] },

56

57 ];

58

59 var sampleRate = 44100;

60 var buffer;

61 var bufferFrameLength = 8;

62 var testSpacingFrames = 32;

63 var testSpacingSeconds = testSpacingFrames / sampleRate;

64 var totalRenderLengthFrames = tests.length * testSpacingFrames;

65

66 function runLoopTest(context, testNumber, test) {

67 var source = context.createBufferSource();

68

69 source.buffer = buffer;

70 source.playbackRate.value = test.playbackRate;

71

72 source.connect(context.destination);

73

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

75 var startTime = testNumber * testSpacingSeconds;

76

77 if (test.offsetFrame == "none" && test.durationFrames == "none") {

78 source.start(startTime);

79 } else if (test.durationFrames == "none") {

80 var offset = test.offsetFrame / context.sampleRate;

81 source.start(startTime, offset);

82 } else {

83 var offset = test.offsetFrame / context.sampleRate;

84 var duration = test.durationFrames / context.sampleRate;

85 source.start(startTime, offset, duration);

86 }

87 }

88

89 function runTest() {

90 if (window.testRunner) {

91 testRunner.dumpAsText();

92 testRunner.waitUntilDone();

93 }

94

95 window.jsTestIsAsync = true;

96

97 // Create offline audio context.

98 var context = new OfflineAudioContext(1, totalRenderLengthFrames, sampleRate );

99 buffer = createTestBuffer(context, bufferFrameLength);

100

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

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

103

104 context.oncomplete = checkAllTests;

105 context.startRendering();

106 }

107

108 runTest();

109 successfullyParsed = true;

110

111 </script>

112

113 </body>

114 </html>

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