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| 1 <!-- Used by media_seek_perf to record seek perf metrics. --> |
| 2 <!DOCTYPE html> |
| 3 <html lang="en-US"> |
| 4 <head> |
| 5 <title>CNS Seek Tests</title> |
| 6 <script src="utils.js" type="text/javascript"></script> |
| 7 </head> |
| 8 |
| 9 <body> |
| 10 <video controls></video> |
| 11 <div></div> |
| 12 </body> |
| 13 |
| 14 <script type="text/javascript"> |
| 15 var video = document.querySelector("video"); |
| 16 var logDiv = document.querySelector("div"); |
| 17 var ITERATIONS = 3; |
| 18 |
| 19 var SeekTestCase = { |
| 20 SHORT_SEEK: 0, |
| 21 LONG_SEEK: 1, |
| 22 BUFFERED_SEEK: 2 |
| 23 } |
| 24 |
| 25 var CachedState = { |
| 26 UNCACHED: 0, |
| 27 CACHED: 1 |
| 28 } |
| 29 |
| 30 function log(text) { |
| 31 logDiv.innerText += text + "\n"; |
| 32 } |
| 33 |
| 34 function resetSeekRecords() { |
| 35 seekRecords = []; |
| 36 for (cache_index in Object.keys(CachedState)) { |
| 37 seekRecords[cache_index] = []; |
| 38 for (seek_index in Object.keys(SeekTestCase)) { |
| 39 seekRecords[cache_index][seek_index] = []; |
| 40 } |
| 41 } |
| 42 } |
| 43 |
| 44 // Called by the PyAuto controller to initiate testing. |
| 45 function startTest(src) { |
| 46 if (window.domAutomationController) |
| 47 window.domAutomationController.send(true); |
| 48 |
| 49 resetSeekRecords(); |
| 50 endTest = false; |
| 51 errorMsg = ""; |
| 52 timer = new Timer(); |
| 53 |
| 54 video.addEventListener("playing", playing); |
| 55 video.addEventListener("seeked", seeked); |
| 56 video.addEventListener("error", |
| 57 function() { end("Error loading media"); }); |
| 58 originalSrc = src; |
| 59 log("Running tests on " + originalSrc); |
| 60 log("Starting seek tests without browser caching:"); |
| 61 cacheState = CachedState.UNCACHED; |
| 62 iteration = 0; |
| 63 IterationTest(); |
| 64 } |
| 65 |
| 66 function IterationTest() { |
| 67 if (iteration < ITERATIONS) { |
| 68 iteration++; |
| 69 log("Test iteration " + iteration); |
| 70 seekState = SeekTestCase.SHORT_SEEK; |
| 71 video.src = getVideoSrc(); |
| 72 video.play(); |
| 73 } else if (cacheState == CachedState.UNCACHED) { |
| 74 log("Starting seek tests with browser caching:"); |
| 75 cacheState = CachedState.CACHED; |
| 76 iteration = 0; |
| 77 IterationTest(); |
| 78 } else { |
| 79 endTest = true; |
| 80 } |
| 81 } |
| 82 |
| 83 function getVideoSrc() { |
| 84 if (cacheState == CachedState.UNCACHED) { |
| 85 return GenerateUniqueURL(originalSrc); |
| 86 } else { |
| 87 return video.src; |
| 88 } |
| 89 } |
| 90 |
| 91 function playing() { |
| 92 if (seekState == SeekTestCase.SHORT_SEEK) { |
| 93 timer.start(); |
| 94 video.currentTime = 1; |
| 95 } |
| 96 } |
| 97 |
| 98 function seeked() { |
| 99 delta = timer.stop(); |
| 100 switch (seekState) { |
| 101 case SeekTestCase.SHORT_SEEK: |
| 102 seekRecords[cacheState][SeekTestCase.SHORT_SEEK].push(delta); |
| 103 log ("short seek in " + delta + "ms.") |
| 104 seekState = SeekTestCase.LONG_SEEK; |
| 105 timer.start(); |
| 106 video.currentTime = video.duration - 1; |
| 107 break; |
| 108 // Seek to almost end of file (unbuffered area). |
| 109 case SeekTestCase.LONG_SEEK: |
| 110 seekRecords[cacheState][SeekTestCase.LONG_SEEK].push(delta); |
| 111 log("long seek in " + delta + "ms.") |
| 112 seekState = SeekTestCase.BUFFERED_SEEK; |
| 113 timer.start(); |
| 114 video.currentTime = 1; |
| 115 break; |
| 116 case SeekTestCase.BUFFERED_SEEK: |
| 117 seekRecords[cacheState][SeekTestCase.BUFFERED_SEEK].push(delta); |
| 118 log("buffered seek in " + delta + "ms.") |
| 119 IterationTest(); |
| 120 break; |
| 121 default: |
| 122 end("An un-expected seek occured."); |
| 123 } |
| 124 } |
| 125 |
| 126 function end(msg) { |
| 127 errorMsg = msg; |
| 128 endTest = true; |
| 129 log(msg); |
| 130 } |
| 131 </script> |
| 132 </html> |
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Chromium Code Reviews
Issue 9960063:
CNS seek tests for <video>. (Closed)
Base URL: http://git.chromium.org/chromium/src.git@master