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Issue 723823002: AudioBufferSourceNode loop duration should be the actual duration (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Created 5 years, 10 months ago
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1 <!DOCTYPE html> 1 <!DOCTYPE html>
2 2
3 <html> 3 <html>
4 <head> 4 <head>
5 <script src="resources/audio-testing.js"></script> 5 <script src="resources/audio-testing.js"></script>
6 <script src="resources/compatibility.js"></script> 6 <script src="resources/compatibility.js"></script>
7 <script src="resources/audiobuffersource-testing.js"></script> 7 <script src="resources/audiobuffersource-testing.js"></script>
8 <script src="../resources/js-test.js"></script> 8 <script src="../resources/js-test.js"></script>
9 </head> 9 </head>
10 10
(...skipping 69 matching lines...) Expand 10 before | Expand all | Expand 10 after
80 expected: [0,1,2,3,4,5,6,7,0,1,2,3,4,5,6,7] }, 80 expected: [0,1,2,3,4,5,6,7,0,1,2,3,4,5,6,7] },
81 81
82 { description: "illegal loop: loopStartFrame < 0", 82 { description: "illegal loop: loopStartFrame < 0",
83 loopStartFrame: -8, loopEndFrame: 3, renderFrames: 16, playbackRate: 1, 83 loopStartFrame: -8, loopEndFrame: 3, renderFrames: 16, playbackRate: 1,
84 expected: [0,1,2,3,4,5,6,7,0,1,2,3,4,5,6,7] }, 84 expected: [0,1,2,3,4,5,6,7,0,1,2,3,4,5,6,7] },
85 85
86 { description: "illegal loop: loopEndFrame > bufferLength", 86 { description: "illegal loop: loopEndFrame > bufferLength",
87 loopStartFrame: 0, loopEndFrame: 30000, renderFrames: 16, playbackRate: 1, 87 loopStartFrame: 0, loopEndFrame: 30000, renderFrames: 16, playbackRate: 1,
88 expected: [0,1,2,3,4,5,6,7,0,1,2,3,4,5,6,7] }, 88 expected: [0,1,2,3,4,5,6,7,0,1,2,3,4,5,6,7] },
89 89
90 // Start a loop with a duration longer than the buffer. The output should be th e data from frame 1
91 // to 6, and then looping from 3 to 5 until 30 frames have been played.
92 { description: "loop from 3 -> 6 with offset 1 for 31 frames",
93 loopStartFrame: 3, loopEndFrame: 6, playbackRate: 1,
94 offsetFrame: 1,
95 durationFrames: 30,
96 expected: [1, 2, 3, 4, 5, 3, 4, 5, 3, 4, 5, 3, 4, 5, 3, 4, 5, 3, 4, 5, 3, 4, 5 , 3, 4, 5, 3, 4, 5, 3] },
97
hongchan 2015/02/03 23:09:05 I understand there are so many objects and propert
Raymond Toy 2015/02/04 00:18:06 Done.
90 ]; 98 ];
91 99
92 var sampleRate = 44100; 100 var sampleRate = 44100;
93 var buffer; 101 var buffer;
94 var bufferFrameLength = 8; 102 var bufferFrameLength = 8;
95 var testSpacingFrames = 32; 103 var testSpacingFrames = 32;
96 var testSpacingSeconds = testSpacingFrames / sampleRate; 104 var testSpacingSeconds = testSpacingFrames / sampleRate;
97 var totalRenderLengthFrames = tests.length * testSpacingFrames; 105 var totalRenderLengthFrames = tests.length * testSpacingFrames;
98 106
99 function runLoopTest(context, testNumber, test) { 107 function runLoopTest(context, testNumber, test) {
100 var source = context.createBufferSource(); 108 var source = context.createBufferSource();
101 109
102 source.buffer = buffer; 110 source.buffer = buffer;
103 source.playbackRate.value = test.playbackRate; 111 source.playbackRate.value = test.playbackRate;
104 source.loop = true; 112 source.loop = true;
105 source.loopStart = test.loopStartFrame / context.sampleRate; 113 source.loopStart = test.loopStartFrame / context.sampleRate;
106 source.loopEnd = test.loopEndFrame / context.sampleRate; 114 source.loopEnd = test.loopEndFrame / context.sampleRate;
107 115
108 var offset = test.offsetFrame ? test.offsetFrame / context.sampleRate : 0; 116 var offset = test.offsetFrame ? test.offsetFrame / context.sampleRate : 0;
109 117
110 source.connect(context.destination); 118 source.connect(context.destination);
111 119
112 // Render each test one after the other, spaced apart by testSpacingSeconds. 120 // Render each test one after the other, spaced apart by testSpacingSeconds.
113 var startTime = testNumber * testSpacingSeconds; 121 var startTime = testNumber * testSpacingSeconds;
114 var duration = test.renderFrames / context.sampleRate; 122
115 source.start(startTime, offset); 123 if (test.renderFrames) {
116 source.stop(startTime + duration); 124 var duration = test.renderFrames / context.sampleRate;
125 if (test.renderFrames > testSpacingFrames || test.renderFrames < 0) {
126 testFailed("Test " + testNumber
127 + ": renderFrames (" + test.renderFrames + ") outside the range [0, "
128 + testSpacingFrames + "]");
129 }
130 source.start(startTime, offset);
131 source.stop(startTime + duration);
132 } else if (test.durationFrames) {
133 if (test.durationFrames > testSpacingFrames || test.durationFrames < 0) {
134 testFailed("Test " + testNumber
135 + ": durationFrames (" + test.durationFrames + ") outside the ra nge [0, "
136 + testSpacingFrames + "]");
137 }
138 source.start(startTime, offset, test.durationFrames / context.sampleRate );
139 } else {
140 testFailed("Test " + testNumber + " must specify one of renderFrames or durationFrames");
141 }
117 } 142 }
118 143
119 function runTest() { 144 function runTest() {
120 if (window.testRunner) { 145 if (window.testRunner) {
121 testRunner.dumpAsText(); 146 testRunner.dumpAsText();
122 testRunner.waitUntilDone(); 147 testRunner.waitUntilDone();
123 } 148 }
124 149
125 window.jsTestIsAsync = true; 150 window.jsTestIsAsync = true;
126 151
127 // Create offline audio context. 152 // Create offline audio context.
128 var context = new OfflineAudioContext(1, totalRenderLengthFrames, sampleRate ); 153 var context = new OfflineAudioContext(1, totalRenderLengthFrames, sampleRate );
129 buffer = createTestBuffer(context, bufferFrameLength); 154 buffer = createTestBuffer(context, bufferFrameLength);
130 155
131 for (var i = 0; i < tests.length; ++i) 156 for (var i = 0; i < tests.length; ++i)
132 runLoopTest(context, i, tests[i]); 157 runLoopTest(context, i, tests[i]);
133 158
134 context.oncomplete = checkAllTests; 159 context.oncomplete = checkAllTests;
135 context.startRendering(); 160 context.startRendering();
136 } 161 }
137 162
138 runTest(); 163 runTest();
139 successfullyParsed = true; 164 successfullyParsed = true;
140 165
141 </script> 166 </script>
142 167
143 </body> 168 </body>
144 </html> 169 </html>
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