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webkit / WebKit / 8bbac28b3802624e189596f49ca6e313d24f34b5 / . / LayoutTests / webaudio / audiobuffersource-playbackState.html
blob: c32f996f479757599d9c987aa400b824d8709272 [file] [log] [blame]
commit-queue@webkit.org88d3c2e2012-03-19 20:54:50 +0000[diff] [blame]1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
2<html>
3<head>
4<script src="resources/audio-testing.js"></script>
5<script src="../fast/js/resources/js-test-pre.js"></script>
6</head>
7
8<body>
9<div id="description"></div>
10<div id="console"></div>
11
12<script>
13description("Test AudioContext activeSourceCount and AudioBufferSourceNode playbackState.");
14
15// Create a few sources that start and end playing at various times. After rendering, check that
16// each source is in the correct state and that the number of active sources is correct.
17
18var sampleRate = 44100;
19
20// Render for this long.
21var renderTime = 2;
22var renderLength = timeToSampleFrame(renderTime, sampleRate);
23
24var context;
25
26// List of AudioBufferSourceNodes sources.
27var sources = [];
28
29// List of messages that will be printed out on success (or failure). Messages are in the same
30// order as the sources list above.
31var sourceMessages = [];
32
33// List of the expected playback state for each source. In the same order a sources list above.
34var sourceExpectedStates = [];
35
36// Array mapping the playback state to a string.
37var playbackStateName = ["UNSCHEDULED_STATE ",
38 "SCHEDULED_STATE ",
39 "PLAYING_STATE ",
40 "FINISHED_STATE "];
41
42function checkResult(event)
43{
44 var success = true;
45
46 // For each source, verify that the playback state matches our expected playback state.
47 for (var k = 0; k < sources.length; ++k) {
48 var prefix = playbackStateName[sourceExpectedStates[k]] + sourceMessages[k];
49 if (sources[k].playbackState == sourceExpectedStates[k]) {
50 testPassed(prefix);
51 } else {
52 testFailed(prefix + ": Actual = " + playbackStateName[sources[k].playbackState]);
53 success = false;
54 }
55 }
56
57 // Figure out how many active sources there should be from the expected states.
58 var playingState = sources[0].PLAYING_STATE
59
60 var expectedActiveCount = 0;
61 for (k = 0; k < sourceExpectedStates.length; ++k) {
62 if (sourceExpectedStates[k] == playingState) {
63 ++expectedActiveCount;
64 }
65 }
66
67 if (context.activeSourceCount == expectedActiveCount) {
68 testPassed(context.activeSourceCount + " are currently playing as expected.");
69 } else {
70 testFailed(context.activeSourceCount + " are currently playing, but expected " + expectedActiveCount + ".");
71 success = false;
72 }
73
74 if (success) {
75 testPassed("activeSourceCount and playbackState tests succeeded.");
76 } else {
77 testFailed("activeSourceCount and playbackState tests did not succeed.");
78 }
79
80 finishJSTest();
81}
82
83// sourceLength - length of source in seconds
84// noteFunction - function to turn on source appropriately
85// expectedState - expected state of the source at the end of rendering
86// message - message to be displayed if test passes
87function createTest(sourceLength, noteFunction, expectedState, message)
88{
89 var s = context.createBufferSource();
90 s.buffer = createImpulseBuffer(context, timeToSampleFrame(sourceLength, sampleRate));
91 s.connect(context.destination);
92 noteFunction(s);
93 sources.push(s);
94 sourceMessages.push(message);
95 sourceExpectedStates.push(expectedState);
96}
97
98function runTest()
99{
rniwa@webkit.orgcc082ecd2012-06-16 03:42:58 +0000[diff] [blame]100 if (window.testRunner) {
101 testRunner.dumpAsText();
102 testRunner.waitUntilDone();
commit-queue@webkit.org88d3c2e2012-03-19 20:54:50 +0000[diff] [blame]103 }
104
105 window.jsTestIsAsync = true;
106
107 // Create offline audio context, rendering for renderTime seconds.
108 context = new webkitAudioContext(2, timeToSampleFrame(renderTime, sampleRate), sampleRate);
109
110 // This is only used so we can access the playback state constants.
111 var bufferSource = context.createBufferSource();
112
113 // Dummy message so we know how long we're rendering so we can interpret the pass/fail messages
114 // correctly.
115 testPassed("Rendering time is " + renderTime + " seconds.");
116
117 // Test unscheduled state. Create 3 second source, but don't schedule it.
118
119 createTest(3,
120 function(s) { },
121 bufferSource.UNSCHEDULED_STATE,
122 "Source has been created");
123
124 // Test noteOn.
125
126 createTest(3,
127 function(s) { s.noteOn(renderTime + 1); },
128 bufferSource.SCHEDULED_STATE,
129 "3 second source scheduled to start at time " + (renderTime + 1));
130
131 createTest(2,
132 function(s) { s.noteOn(1); },
133 bufferSource.PLAYING_STATE,
134 "2 second source starting at time 1");
135
136 createTest(1.25,
137 function(s) { s.noteOn(0); },
138 bufferSource.FINISHED_STATE,
139 "1.25 second source starting at time 0");
140
141 // Test noteGrainOn.
142
143 createTest(3,
144 function(s) { s.noteGrainOn(renderTime + 1, 0, 1); },
145 bufferSource.SCHEDULED_STATE,
146 "1 second grain scheduled to start at time " + (renderTime + 1));
147
148 createTest(3,
149 function(s) { s.noteGrainOn(0.5, 0, 2); },
150 bufferSource.PLAYING_STATE,
151 "2 second grain starting at time 0.5");
152
153 createTest(3,
154 function(s) { s.noteGrainOn(0.5, 0, 1); },
155 bufferSource.FINISHED_STATE,
156 "1 second grain starting at time 0.5");
157
158 // Test looping source
159
160 createTest(0.5,
161 function(s) { s.loop = true; s.noteOn(renderTime + 1); },
162 bufferSource.SCHEDULED_STATE,
163 "a looping 0.5 second source scheduled at time " + (renderTime + 1));
164
165 createTest(0.5,
166 function(s) { s.loop = true; s.noteOn(1.25); },
167 bufferSource.PLAYING_STATE,
168 "a looping 0.5 second source starting at time 1.25");
169
170 context.oncomplete = checkResult;
171 context.startRendering();
172}
173
174runTest();
175successfullyParsed = true;
176
177</script>
178
179<script src="../fast/js/resources/js-test-post.js"></script>
180</body>
181</html>