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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 </head> | |
| 10 | |
| 11 <body> | |
| 12 | |
| 13 <div id="description"></div> | |
| 14 <div id="console"></div> | |
| 15 | |
| 16 <script> | |
| 17 description("This test verifies that the AudioBasicInspectorNode based nodes wor
k correctly."); | |
| 18 | |
| 19 var sampleRate = 44100.0; | |
| 20 // We carefully arrange the renderLengthInFrames to be a multiple of the AudioNo
de rendering quantum (AudioNode::ProcessingSizeInFrames) | |
| 21 // so that AudioSourceNode will not feed tailing zeroes into the context and fai
l this test. | |
| 22 var renderLengthInFrames = 256; | |
| 23 var fftSize = 64; | |
| 24 | |
| 25 var audioDataOne = 255; // Audio data 1.0 in Uint8 format will be 255. | |
| 26 var audioDataZero = 128; // Audio data 0 in Uint8 format will be 128. | |
| 27 | |
| 28 var context; | |
| 29 var constantBuffer; | |
| 30 var bufferSource; | |
| 31 var analyser; | |
| 32 | |
| 33 function constructCommonGraph() { | |
| 34 // Create offline audio context. | |
| 35 context = new OfflineAudioContext(1, renderLengthInFrames, sampleRate); | |
| 36 constantBuffer = createConstantBuffer(context, renderLengthInFrames, 1); | |
| 37 | |
| 38 bufferSource = context.createBufferSource(); | |
| 39 bufferSource.buffer = constantBuffer; | |
| 40 | |
| 41 analyser = context.createAnalyser(); | |
| 42 analyser.fftSize = fftSize; | |
| 43 | |
| 44 bufferSource.connect(analyser); | |
| 45 } | |
| 46 | |
| 47 function test1Finished() { | |
| 48 var timeDomainData = new Uint8Array(fftSize); | |
| 49 analyser.getByteTimeDomainData(timeDomainData); | |
| 50 | |
| 51 if (timeDomainData[0] >= audioDataOne) | |
| 52 testPassed("RealtimeAnalyserNode got pulled when connected from upstream
node but not to downstream node."); | |
| 53 else | |
| 54 testFailed("RealtimeAnalyserNode failed to get pulled when connected fro
m upstream node but not to downstream node."); | |
| 55 | |
| 56 test2(); | |
| 57 } | |
| 58 | |
| 59 // To verify the realtimeAnalyser can pull data when there is an upstream node c
onnected to it | |
| 60 // but it's not connected to a downstream node. | |
| 61 function test1() { | |
| 62 constructCommonGraph(); | |
| 63 | |
| 64 bufferSource.start(0); | |
| 65 | |
| 66 context.oncomplete = test1Finished; | |
| 67 context.startRendering(); | |
| 68 } | |
| 69 | |
| 70 function test2Finished() { | |
| 71 var timeDomainData = new Uint8Array(fftSize); | |
| 72 analyser.getByteTimeDomainData(timeDomainData); | |
| 73 | |
| 74 if (timeDomainData[0] >= audioDataOne) | |
| 75 testPassed("RealtimeAnalyserNode got pulled when connected from upstream
node and to destination node."); | |
| 76 else | |
| 77 testFailed("RealtimeAnalyserNode failed to be pulled when connected by u
pstream node and to destination node."); | |
| 78 | |
| 79 test3(); | |
| 80 } | |
| 81 | |
| 82 // To verify the realtimeAnalyser can process normally when there is an upstream
node connected to it | |
| 83 // and it's also connected to a downstream node which ultimately connect to audi
o destination. | |
| 84 function test2() { | |
| 85 constructCommonGraph(); | |
| 86 | |
| 87 analyser.connect(context.destination); | |
| 88 | |
| 89 bufferSource.start(0); | |
| 90 | |
| 91 context.oncomplete = test2Finished; | |
| 92 context.startRendering(); | |
| 93 } | |
| 94 | |
| 95 function test3Finished() { | |
| 96 var timeDomainData = new Uint8Array(fftSize); | |
| 97 analyser.getByteTimeDomainData(timeDomainData); | |
| 98 | |
| 99 // If realtimeAnalyser hasn't pulled any data, the data in buffer will be 0. | |
| 100 if (timeDomainData[0] == audioDataZero) | |
| 101 testPassed("RealtimeAnalyserNode didn't get pulled when it should not.")
; | |
| 102 else | |
| 103 testFailed("RealtimeAnalyserNode been pulled when it should not."); | |
| 104 | |
| 105 finishJSTest(); | |
| 106 } | |
| 107 | |
| 108 // To verify the realtimeAnalyser will stop pulling if it is connected to a down
stream node | |
| 109 // which is not ultimatly connected to any audio destination. | |
| 110 function test3() { | |
| 111 constructCommonGraph(); | |
| 112 | |
| 113 var gain = context.createGain(); | |
| 114 analyser.connect(gain); | |
| 115 | |
| 116 bufferSource.start(0); | |
| 117 | |
| 118 context.oncomplete = test3Finished; | |
| 119 context.startRendering(); | |
| 120 } | |
| 121 | |
| 122 function runTest() { | |
| 123 if (window.testRunner) { | |
| 124 testRunner.dumpAsText(); | |
| 125 testRunner.waitUntilDone(); | |
| 126 } | |
| 127 | |
| 128 window.jsTestIsAsync = true; | |
| 129 | |
| 130 test1(); | |
| 131 } | |
| 132 | |
| 133 runTest(); | |
| 134 | |
| 135 </script> | |
| 136 | |
| 137 </body> | |
| 138 </html> | |
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Chromium Code Reviews
Issue 2581463002:
Refactor WebAudio test directory (Closed)
