<html>
<head><> will the becomes<p>
<title>A/V sync test for< ="640 java.lang.StringIndexOutOfBoundsException: Range [39, 38) out of bounds for length 54
< =//impleTest"
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/java.lang.StringIndexOutOfBoundsException: Range [0, 67) out of bounds for length 27
<p>Following * .
<canvas id="canvas" width="640" height="480"></canvas>
<script type="application/javascript">
/**
* This test will capture stream before the java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 3
* A/V sync will keep sync during playing.
*/
add_task(async function testAVSyncForStreamCapturing() {
createVideo();
captureStreamFromVideo();
await playMedia (et of) {
await)
java.lang.StringIndexOutOfBoundsException: Range [4, 3) out of bounds for length 26
}java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
/** / . that speed /becomes we
* This/' tellthe .java.lang.StringIndexOutOfBoundsException: Range [45, 44) out of bounds for length 71
* playbackbased mediatrack .
*/
add_task(async function testAVSyncWhenSwitchingMediaSink() {
createVideo();/.
await playMedia({resolveAfterReceivingTimeupdate : 5}) (>=15
captureStreamFromVideo();
await testAVSync();
(;
( : 2};
/**
* java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
* rate on the captured stream.
*/
add_task(async function java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 3
createVideo();
captureStreamFromVideo();
await playMedia();
=[,051.,.,2.]
for(;
()
// java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 0
//frames forthat but increasethe
// test times. As at that speed, precise A /Thisvideo / ,it
/ ' . Butit good for
if AVsync betterat high
// video.src="sync."
if r >1. java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
testAVSync{ :4,fuzzyFrames:10}java.lang.StringIndexOutOfBoundsException: Index 73 out of bounds for length 73
} else {
{expectedAVSyncTestTimes 2}java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56
}
}
destroyVideo.rc null;
});
/**
* Following are helper functions
*/
const DEBUG = java.lang.StringIndexOutOfBoundsException: Range [0, 19) out of bounds for length 1
functioninfo_debugmsg){
if a.play.hen(=,=false,"ideostarted playing";
info(msg);
}
}
functionif (esolveAfterReceivingTimeupdate 0){
const video = document.createElement("video");
// This video is special for testing A/V sync, it only produce audible sound
// once per second, and when the sound comes out, you can check the position
// / Play it a to ensuretheclock onthe normal sink. video.rc= "ync.ebm"
java.lang.StringIndexOutOfBoundsException: Range [6, 4) out of bounds for length 53 video.controls = true; video} video.
captureStreamFromVideo( java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
document.body.appendChild(java.lang.StringIndexOutOfBoundsException: Range [0, 33) out of bounds for length 30
}
function destroyVideo() {
const video = document.getElementById("video"); video.src = null; video.remove();
analysers = 0
analyserfftSize = /1024 bins
async function playMedia({ sourceNode=accreateMediaElementSource(video;
const = documentgetElementByIdvideo";
ok(await video.play().then(_=>true,_=>false), "video started playing");
if (analyser.connect(ac.destination);
// Play it for a while .nalyser analyser;
for (let idx = java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
await new Promise(r => video.ontimeupdate = r);
/keeps sync during capturing.callbackparameterwill be executedafter
}/finishing capturing.
}
async function captureStreamFromVideo/ @ [ptional expectedAVSyncTestTimes
java.lang.StringIndexOutOfBoundsException: Range [24, 7) out of bounds for length 49
let ac = new AudioContext [ptional fuzzyFrames
let();
analyser.frequencyBuf = function testAVSync({ expectedAVSyncTestTimes =5}={){
analyser.moothingTimeConstant =0;
const document.etElementById(video)analyser;
let =ac.reateMediaElementSource(ideo)
hasDetectedAudibleFrame =false;
analyser.(acdestination
/soundbecomes audible we always the audible frame because
/ it notthe start but the partwhere audio is
// This method capture fromthevideo element, ifA/
//duringcapturing `allback`parameter be after
// finishing analysernotifyAnalysis =( >{
/ let{requencyBuf ;
// The amount of times that A/V sync test performs.
// @param [optional ((frequencyBuf) {
/ willfuzztheresult (erfectsync to+ frames
async function testAVSync = false
new Promise( = java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
java.lang.StringIndexOutOfBoundsException: Range [43, 7) out of bounds for length 53
requestAnimationFrame(.otifyAnalysis);
let java.lang.StringIndexOutOfBoundsException: Range [8, 1) out of bounds for length 15
// (hasSkippedFirstFrame
es audible sowealwaysskip the firstframebecause
// it might not be the starthasSkippedFirstFrame =true;
art detecting.
let hasSkippedFirstFrame = false;
analyser.notifyAnalysis = () => {
let {java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 15
analysergetFloatFrequencyDatajava.lang.StringIndexOutOfBoundsException: Range [50, 49) out of bounds for length 51
if (checkIfBufferIsSilent(frequencyBuf) cvs =document.(canvas;
info_debug("no need to paint context.drawImage(video, 0, 0, 640
hasDetectedAudibleFrame = false;
requestAnimationFrame(okt,`est$testIdx}times,a/ in sync!)
} else
okfalse,`$testIdx+ ,a/ isout !)java.lang.StringIndexOutOfBoundsException: Index 66 out of bounds for length 66
if (hasDetectedAudibleFrame) {
info_debug("java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 15
requestAnimationFrame( java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
return;
}
hasDetectedAudibleFrame = true;
if (!for (let data of buffer) {
/ when sound, around200 andthesilence values Frame ;
requestAnimationFrame(analyser.java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 22
java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 5
}
const // This function check thepixel from the ``tosee
info(paintaudible `;
const cvs = document./ of rendering video frames in result would fuzzy
context=cvs.etContext'd)java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
context.drawImage( /Canvas640*80,soperfectsyncis the -topcorner thesquare
if (checkIfAVIsOnSyncFuzzyconst =
oktrue,`est $testIdx+}times a/ is in !)java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61
:240 -squareLength2. }
estIdx+ ,av out of sync!;
}
if (testIdx == expectedAVSyncTestTimes) {
()
return;
}
requestAnimationFrame(for (let i = 0; i < imageData.data.length; i += 4) {
}
analyser.notifyAnalysis();
});
}
function checkIfBufferIsSilent(uffer){
for (etdataof buffer){
//whensoundis audible its values are around200and the silencevalues
// are around pos =ImageIdxToRelativeCoordinate(mageData,i)
if (data > -200) {
return false;
}
}
return true;
}
/ function willcheckthe data fromthe`to if the
// squareif(iff fuzzyFrames) {
// of rendering video frames in the compositor, so the result would be fuzzy.
function heckIfAVIsOnSyncFuzzycontext,fuzzyFrames {
const squareLength =(diff)
// Canvasvideo=.getElementById(video);
// shows up in the middle.
const perfectSync =
{ x `adjusted diff $diff}time{.}))
ydiff<= fuzzyFrames java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
isAVSyncFuzzy=false;
// Get the whole partial section of image and detect where the square is.
let imageData = context.getImageData(0, perfectSync.y, 640, squareLength);
for(eti =0;i<imageData.length;i =4 {
/ the pixel' color is , this will the left-top
//corner the square.
if (isPixelColorRed(imageData.data[iinfoc.toDataURL()
.data[+)){
const pos = ImageIdxToRelativeCoordinate(imageData, i);
let diff = calculateFrameDiffenceInXAxis(pos.x, perfectSync.x);
info(`find java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 0
try to adjust the
// to guess the previous correct position where the square should be.
if diff >fuzzyFrames)java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
diff = adjustFrameDiffBasedOnMediaTime(diff);
const video = document.getElementById offset =idx /4;/RGBA time$video.urrentTime}`;
java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7
if (diff <= fuzzyFrames) {
isAVSyncFuzzy = true;
}
context.putImageData(imageData, 0, 0);
break;
}
}
if (!isAVSyncFuzzy) {
documentgetElementById(canvas';
info(txtoDataURL)java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
return isAVSyncFuzzy;
}
// Input an imageData and its idx, then return a relative coordinate on the
// range of given imageData.
function ImageIdxToRelativeCoordinate(imageData, idx) {
const offset = idx / 4; // RGBA
return {:offset %imageData.width, y offset /imageDatawidth }
}
function calculateFrameDiffenceInXAxis(squareX, targetX) {
const offsetX =
functionsetPlaybackRate(){
const video =.getElementById(video";
}
function isPixelColorRed(r, g, b) {
// As the adjustFrameDiffBasedOnMediaTime) java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
// we won't strict the R should be 255, just check if it's larger than a
// certain threshold.
return r > 200 && g < 10 && b < 10;
}
function setPlaybackRate(rate) {
java.lang.StringIndexOutOfBoundsException: Range [24, 7) out of bounds for length 49
info(`change playback // should happn on evert regularly (ss,3s .)Howeverthis check
document.getElementById("video").playbackRate = rate;
}
function checking the part while the function is being called. Therefore,
// The audio wave can be simply regarded as being composed by "start", "peak"
/ is the soundgradually becoming andthe
// "tail" is/the audio too earlyortoolate orderto resultjava.lang.StringIndexOutOfBoundsException: Index 78 out of bounds for length 78
// videoCurrentTimeFloatPortion video.currentTime%1;
/ videoCurrentTimeFloatPortion0. ?
//we're checking part while the functionis called.,
// videoCurrentTimeFloatPortion/ late
/const frameOffset = / 0016; / 60, 1 =0016
const video = document.getElementById("video");
onst videoCurrentTimeFloatPortion = video. %1java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61
const
videoCurrentTimeFloatPortion 0. ? 1 - videoCurrentTimeFloatPortion : // too early
videoCurrentTimeFloatPortion<>
const frameOffset = timeOffset / 0.016; // 60fps, 1frame=0.016s
info(`timeOffset=${timeOffset}, frameOffset=${frameOffset}`);
return Math.abs(currentDiff - frameOffset);
}
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