chrome/test/data/media/html/media_seek.html - Issue 9960063: CNS seek tests for <video>.

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Issue 9960063: CNS seek tests for <video>. (Closed) Base URL: http://git.chromium.org/chromium/src.git@master

Patch Set: Re comments. Created 8 years, 8 months ago

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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_key in CachedState) {

	37 seekRecords[cache_key] = [];

	38 for (seek_key in SeekTestCase) {

	39 seekRecords[cache_key][seek_key] = [];

	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 originalSrc = src;

	55 video.addEventListener("playing", playing);

	56 video.addEventListener("seeked", seeked);

	57 video.addEventListener("error",

	58 function() { end("Error loading media"); });

	59 log("Starting seek tests without browser caching:");

	60 cacheState = CachedState.UNCACHED;

	61 iteration = 0;

	62 IterationTest();

	63 }

	64

	65 function IterationTest() {

	66 if (iteration < ITERATIONS) {

	67 iteration++;

	68 log("Test iteration " + iteration);

	69 seekState = SeekTestCase.SHORT_SEEK;

	70 video.src = getVideoSrc();

	71 video.play();

	72 } else if (cacheState == CachedState.UNCACHED) {

	73 log("Starting seek tests with browser caching:");

	74 cacheState = CachedState.CACHED;

	75 iteration = 0;

	76 IterationTest();

	77 } else {

	78 endTest = true;

	79 }

	80 }

	81

	82 function getVideoSrc() {

	83 if (cacheState == CachedState.UNCACHED) {

	84 return GenerateUniqueURL(originalSrc);

	85 } else {

	86 return video.src;

	87 }

	88 }

	89

	90 function playing() {

	91 if (seekState == SeekTestCase.SHORT_SEEK) {

	92 timer.start();

	93 video.currentTime = 1;

	94 }

	95 }

	96

	97 function seeked() {

	98 delta = timer.stop();

	99 switch (seekState) {

	100 case SeekTestCase.SHORT_SEEK:

	101 seekRecords[cacheState][SeekTestCase.SHORT_SEEK].push(delta);

	102 log ("short seek in " + delta + "ms.")

	103 seekState = SeekTestCase.LONG_SEEK;

	104 timer.start();

	105 video.currentTime = video.duration - 1;

	106 break;

	107 // Seek to almost end of file (unbuffered area).

	108 case SeekTestCase.LONG_SEEK:

	109 seekRecords[cacheState][SeekTestCase.LONG_SEEK].push(delta);

	110 log("long seek in " + delta + "ms.")

	111 seekState = SeekTestCase.BUFFERED_SEEK;

	112 timer.start();

	113 video.currentTime = 1;

	114 break;

	115 case SeekTestCase.BUFFERED_SEEK:

	116 seekRecords[cacheState][SeekTestCase.BUFFERED_SEEK].push(delta);

	117 log("buffered seek in " + delta + "ms.")

	118 IterationTest();

	119 break;

	120 default:

	121 end("An un-expected seek occured.");

	122 }

	123 }

	124

	125 function end(msg) {

	126 errorMsg = msg;

	127 endTest = true;

	128 log(msg);

	129 }

	130 </script>

	131 </html>

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