/
3D_Reconstruction_1.html
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3D_Reconstruction_1.html
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1.0, user-scalable=0" />
<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css"/>
<!-- TODO: Clean all these imports. Some day -->
<script language="javascript" src="js/jquery.min.js"></script>
<script language="javascript" src="js/bootstrap.min.js"></script>
<script language="javascript" src="js/jquery.mobile.touch.min.js"></script>
<script language="javascript" src="js/basic.js"></script>
<script language="javascript" src="js/three.min.js"></script>
<script language="javascript" src="js/stats.min.js"></script>
<script language="javascript" src="js/dat.gui.min.js"></script>
<script language="javascript" src="js/OrbitControls.js"></script>
<script language="javascript" src="js/PLYLoader.js"></script>
<script language="javascript" src="js/ImageUtils.js"></script>
<script language="javascript" src="js/popcorn-complete.js"></script>
<script language="javascript" src="js/tween.min.js"></script>
<!-- just for draggable -->
<script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.9.2/jquery-ui.min.js"></script>
<title>VERA 3D Event Reconstruction Interface by Junwei Liang</title>
</head>
<body>
<script type="text/javascript">
// Author: Junwei Liang
// 3D Reconstruction from Social Media Videos
// Currently this is just a web interface,
// with pre-computed video synchronization, Google Street View Point Cloud,
// and camera calibrations (intrinsic and extrinsic at each timestep).
// Basically, the recipe we need to get to this visualization is a bunch of
// synchronized videos (each with a global time offset), the scene point
// cloud (which we get from Google Street) and the camera extrinsic
// parameters at every time step (for example, you can use VisualSFM to get those).
// Point clouds from Google Street View, manually translated to the right position
var plyPath = "data/Boston.ply";
var video_data = [
{
"videoUrl": "data/v1.mp4",
"cameraParamFile": "data/processed_camera_params_1.txt",
"offset": 0.0,
"trackingFile": "data/3D_Tracking.txt",
"trackingImagePath": "data/3D_Tracking",
"initialParam": {
"cam_x": 2.21578329891,
"cam_y": -0.634912336143,
"cam_z": 1.28646818097,
"cam_look_x": 1.522345881342,
"cam_look_y": 0.082464033693,
"cam_look_z": 1.35366707916,
"focalLength": 1099.6685791,
"videoTime": 2.83672135706
},
"videoname": "v1"
},
{
"videoUrl": "data/v2.mp4",
"cameraParamFile": "data/processed_camera_params_2.txt",
"offset": 48.0,
"initialParam": {
"cam_x": 0.742089942232,
"cam_y": -0.896779140754,
"cam_z": 1.25434689738,
"cam_look_x": 0.540069298036,
"cam_look_y": 0.065158293585,
"cam_look_z": 1.438368721454,
"focalLength": 1230.15063477,
"videoTime": 47.2561484055
},
"videoname": "v2"
}
];
</script>
<style type="text/css">
body{
background-color:rgb(220,220,220);
font-family:"Microsoft YaHei",微软雅黑,宋体,Helvetica,arial;
}
#siteHeader{
position:fixed;
top:0;
left:0;
z-index:9999;
background-color:rgb(0,128,192);
height:30px;
padding:5px 0px;
width:100%;
}
#siteHeader > a.logo{
position:absolute;
left:50%;
width:300px;
text-align:center;
margin-left:-150px;
font-size:1.2em;
font-weight:bold;
padding-top:5px;
color:white;
text-decoration:none;
outline:none;
}
#siteHeader > a.logo:focus{
outline:none;
}
#cHtml3d{
background-color:white;
width:1400px;
margin:0px auto;
min-height:800px;
padding-top: 40px;
}
#cHtml3d input{margin:0px}
#cHtml3d > div.main > div.mainControls{
padding:10px 0;
}
#cHtml3d > div.main > div.mainControls > div.videoControl{
border-top:1px silver solid;
margin-bottom:20px;
}
#cHtml3d > div.main > div.mainControls > div.videoControl > div.block{
text-align:center;
border-left:5px green solid;
border-bottom:4px silver solid;
border-top:1px silver solid;
border-right:1px silver solid;
padding-top:5px;
margin-bottom:10px;
}
#cHtml3d > div.main > div.mainControls > div.videoControl > div.block > video{
width:100%;
}
#cHtml3d > div.main > div.mainControls > div.videoControl > div.block > div.controls{
display:none;
}
div.main > div.mainControls > div.videoControl > div.block > div.controls > i{cursor:pointer}
</style>
<script type="text/javascript">
function getVideoTexture(url)
{
var temp = {};
// create the video element
temp.video = document.createElement('video');
temp.video.width = 320;
temp.video.height = 200;
temp.video.autoplay = false;
temp.video.loop = false;
temp.video.src = url;
// create the texture
var texture = new THREE.Texture( temp.video );
// expose texture as this.texture
temp.texture = texture;
temp.texture.minFilter = THREE.LinearFilter;
temp.update = function(){
if( temp.video.readyState !== temp.video.HAVE_ENOUGH_DATA ) return;
texture.needsUpdate = true;
}
temp.destroy = function(){
temp.video.pause()
}
return temp;
}
function getVideoname(url)
{
var base = new String(url).substring(url.lastIndexOf('/') + 1);
if(base.lastIndexOf(".") != -1)
base = base.substring(0, base.lastIndexOf("."));
return base;
}
// return a group of human shape, its 0,0,0 is the feet
function makePerson(color,personId,pathToImg)
{
var radius=0.2,cheight=1.0; // this cheight+2*radius should be the person average height (after scaleFactor)
var cylinderGeo = new THREE.CylinderGeometry( radius, radius, cheight, 10 );
var cylinderMat = new THREE.MeshBasicMaterial({wireframe:true,color: color});
var cylinder = new THREE.Mesh( cylinderGeo, cylinderMat);
cylinder.position.set(0,cheight/2,0);
//put a sphere on top of the cylinder
var sphereGeo = new THREE.SphereGeometry( radius, 10, 10 );
var sphereMat = new THREE.MeshBasicMaterial( {wireframe:true,color: color} );
var sphere = new THREE.Mesh( sphereGeo, sphereMat );
sphere.position.set(0,cheight+radius,0);
// add a plane on infront and put the person pic on it
//console.log(pathToImg);
var imgTexture = new THREE.TextureLoader().load(pathToImg);
imgTexture.minFilter = THREE.LinearFilter;
imgTexture.repeat.set(1,1);
var imgMaterial = new THREE.MeshBasicMaterial({
map : imgTexture
});
var noneMaterial = new THREE.MeshBasicMaterial({color:color});
var materials = [
noneMaterial,
noneMaterial,
noneMaterial,
noneMaterial,
imgMaterial, // this is the back of that face
noneMaterial // this is the face for cube when using lookAt(point)
];
var cubeGeometry = new THREE.BoxGeometry(2*radius, cheight+2*radius, radius/4);
var cube = new THREE.Mesh( cubeGeometry, new THREE.MultiMaterial(materials));
cube.position.set(0,(cheight+2*radius)/2,radius);//
var group = new THREE.Object3D();
group.up = new THREE.Vector3(0,0,1);// important to keep the video correct
group.add(cylinder);
group.add(sphere);
group.add(cube);
group.name = personId;
return group;
}
// return a cube with the video and a cone
// var [group,video] = makeVideoGroup(url);
function makeVideoGroup(videoUrl,color)
{
var videoname = getVideoname(videoUrl);
// make 2D text material for the cube, for videoname
var canvasText = document.createElement("canvas");
var context1 = canvasText.getContext("2d");
context1.fillStyle="black";
context1.fillRect(0,0,canvasText.width,canvasText.height);
context1.font = "Bold 20px Arial";
context1.fillStyle = "rgba(255,0,0,1.0)";
context1.fillText(videoname,0,80);// y has to be 50 as the font size?
var textTexture = new THREE.Texture(canvasText);
textTexture.needsUpdate = true;
textTexture.minFilter = THREE.LinearFilter;
var textMaterial = new THREE.MeshBasicMaterial({map:textTexture,side:THREE.DoubleSide});
textMaterial.transparent = false;
// the video material
var videoTexture = getVideoTexture(videoUrl);
var cubeMaterial = new THREE.MeshBasicMaterial({
map : videoTexture.texture
});
// the other side of the cube
var noneMaterial = new THREE.MeshBasicMaterial({color:color});
var materials = [
noneMaterial,
noneMaterial,
noneMaterial,
noneMaterial,
textMaterial, // this is the back of that face
cubeMaterial // this is the face for cube when using lookAt(point)
];
// width, height, depth
var cubeGeometry = new THREE.BoxGeometry(2, 1.25, 0.4,1,1,1);
var cube = new THREE.Mesh( cubeGeometry, new THREE.MultiMaterial(materials));
cube.position.set(0,0,0);
// for degree (0-360)
//cube.rotation.set(degree*(Math.PI/180), 0, 0);
//rotate the Z so when the group lookAt, the TV is correct angle
// radius, height, faces
var cgeometry = new THREE.ConeGeometry( 8, 10, 20 );// radius can be changed independtly
var cmaterial = new THREE.MeshBasicMaterial( {color: "yellow"} );
cmaterial.transparent = true;
cmaterial.opacity = 0.1;
var cone = new THREE.Mesh( cgeometry, cmaterial );
cone.position.set(0,0,5);// the last position has to be half of the height
cone.rotateX(270 * (Math.PI/180));
var group = new THREE.Object3D();
group.up = new THREE.Vector3(0,0,1);// important to keep the video correct
// add cube number 2 as a projection
var noneMaterial2 = new THREE.MeshBasicMaterial({color:color,"transparent":true,"opacity":0.0});
var cubeMaterial2 = new THREE.MeshBasicMaterial({
map : videoTexture.texture,
"transparent":true,
"opacity":0.4,
});
var m = [
noneMaterial2,
noneMaterial2,
noneMaterial2,
noneMaterial2,
noneMaterial2, // this is the back of that face
cubeMaterial2 // this is the face for cube when using lookAt(point)
];
var cube2 = new THREE.Mesh( new THREE.BoxGeometry(24, 15, 0.2,1,1,1), new THREE.MultiMaterial(m));
cube2.position.set(0,0,10);// the height of the cone
cube2.name = "projectCube";
group.add(cube2);
group.add(cube);
group.add(cone);
group.name = videoname;
return [group,videoTexture]; // return the videoTexture so that we can update it, and control the video outside
}
function createBackgroundTexture(width, height){
function gauss(x, y){
return (1 / (2 * Math.PI)) * Math.exp( - (x*x + y*y) / 2);
};
var map = THREE.ImageUtils.generateDataTexture( width, height, new THREE.Color() );
map.magFilter = THREE.NearestFilter;
var data = map.image.data;
//var data = new Uint8Array(width*height*4);
var chroma = [1, 1.5, 1.7];
var max = gauss(0, 0);
for(var x = 0; x < width; x++){
for(var y = 0; y < height; y++){
var u = 2 * (x / width) - 1;
var v = 2 * (y / height) - 1;
var i = x + width*y;
var d = gauss(2*u, 2*v) / max;
var r = (Math.random() + Math.random() + Math.random()) / 3;
r = (d * 0.5 + 0.5) * r * 0.03;
r = r * 0.4;
//d = Math.pow(d, 0.6);
data[3*i+0] = 255 * (d / 15 + 0.05 + r) * chroma[0];
data[3*i+1] = 255 * (d / 15 + 0.05 + r) * chroma[1];
data[3*i+2] = 255 * (d / 15 + 0.05 + r) * chroma[2];
//data[4*i+3] = 255;
}
}
return map;
};
var timeTol = 0.0001;// this is the time Tolenrence for comparing the current time with video time
// also the cameraParam smaller than this timeTol will be ignored
function parseCameraParam(cameraParamStr)// the whole file as a str
{
// filterer out sudden changes of camera location
var use_camera_smoothing = true;
var data = new Array();
var lines = cameraParamStr.split("\n");
var lastTime = null;// remember current time for ignoring the camera param too close to the last one
var lastThing = null;// last valid points
var skipped = 0;
for(var i=0;i<lines.length;++i)
{
if($.trim(lines[i]) == "")
{
continue;
}
var things = lines[i].split(" ");
if(things.length != 8)
{
console.log("warning, param file format not right, line:"+i);
continue;
}
var videoTime = parseFloat(things[7])
if(lastTime==null)
{
lastTime = videoTime;
}
else
{
// check the current videotime with the last time
var curTime = videoTime;
if(Math.abs(curTime - lastTime) < timeTol)
{
continue;
}
else
{
lastTime = curTime;
}
}
var cam_x=parseFloat(things[0]);
var cam_y=parseFloat(things[1]);
var cam_z=parseFloat(things[2]);
var cam_look_x=parseFloat(things[3])+parseFloat(things[0]);
var cam_look_y=parseFloat(things[4])+parseFloat(things[1]);
var cam_look_z=parseFloat(things[5])+parseFloat(things[2]);
if(use_camera_smoothing)
{
// for smoothing
if(lastThing == null)
{
lastThing = [
cam_x,// cam_x
cam_y,//y
cam_z,
cam_look_x,
cam_look_y,
cam_look_z,
videoTime
];
}
else
{
var timeDiff = videoTime - lastThing[6];
var cam_pos_dist = calDist(lastThing[0],lastThing[1],lastThing[2],cam_x,cam_y,cam_z)/timeDiff;
var cam_look_dist = calDist(lastThing[3],lastThing[4],lastThing[5],cam_look_x,cam_look_y,cam_look_z)/timeDiff;
//console.log([cam_pos_dist,cam_look_dist,videoTime]);
lastThing = [
cam_x,// cam_x
cam_y,//y
cam_z,
cam_look_x,
cam_look_y,
cam_look_z,
videoTime
];
// before scaleFactor
if((cam_pos_dist > 0.2) || (cam_look_dist > 0.2))
{
skipped+=1;
continue;
}
}
}
data.push([
cam_x,// cam_x
cam_y,//y
cam_z,
cam_look_x,
cam_look_y,
cam_look_z,
videoTime,// videoTime in seconds
]);
}
/*
// assuming the original file is sorted based on time
data.sort(function(a,b){
if (a[6] < b[6]) return -1;
if (a[6] > b[6]) return 1;
return 0;
});*/
//console.log(data.length);
console.log("used camera smoothing, orignal data points:"+(data.length+skipped)+", skipped:"+skipped);
return data;
}
function calDist(x1,y1,z1,x2,y2,z2)
{
return (x1-x2)*(x1-x2)+(y1-y2)*(y1-y2)+(z1-z2)*(z1-z2);
}
function getCameraPos(paramList,currentTime)
{
// assuming the paramList is sorted,
// paramlist is array of 7 (cam_xyz,cam_look_xyz,videoTime)
// first check smallest and largest
if(currentTime <= paramList[0][6])
{
return [paramList[0][6],[
paramList[0][0],
paramList[0][1],
paramList[0][2],
paramList[0][3],
paramList[0][4],
paramList[0][5]
]];
}
var last = paramList.length-1;
if(currentTime > paramList[last][6])
{
return [paramList[last][6],[
paramList[last][0],
paramList[last][1],
paramList[last][2],
paramList[last][3],
paramList[last][4],
paramList[last][5]
]];
}
for(var i=0;i<paramList.length-1;++i)// not the last one
{
// when it is close to that one
if((currentTime > paramList[i][6]) && (currentTime <= paramList[i+1][6]))
{
return [paramList[i+1][6],[
paramList[i+1][0],
paramList[i+1][1],
paramList[i+1][2],
paramList[i+1][3],
paramList[i+1][4],
paramList[i+1][5]
]];
}
}
return [null,null];
}
// assuming the tracking is sorted timestamp ASC
function parseTracking(cameraParamStr)// the whole file as a str
{
// return the point list and videotime for each person
//timestamp person_id x y z
var data = {};
var lines = cameraParamStr.split("\n");
var loaded =0;
for(var i=0;i<lines.length;++i)
{
if($.trim(lines[i]) == "")
{
continue;
}
var things = lines[i].split(" ");
if(things.length != 5)
{
console.log("warning, param file format not right, line:"+i);
continue;
}
var personId=things[1],timestamp=parseFloat(things[0]),x=parseFloat(things[2]),y=parseFloat(things[3]),z=parseFloat(things[4]);
if(data[personId] == null)
data[personId] = {"posList":new Array(),"lastTarget":null};
// check whether the time interval is too small, then discard it
if(data[personId]['posList'][data[personId].length-1] != null)
{
if(Math.abs(timestamp - data[personId]['posList'][data[personId].length-1][3]) < timeTol)
{
continue;
}
}
data[personId]['posList'].push([
x,y,z,timestamp
]);
loaded++;
}
/*
// assuming the original file is sorted based on time
data.sort(function(a,b){
if (a[6] < b[6]) return -1;
if (a[6] > b[6]) return 1;
return 0;
});*/
//console.log(data);
//console.log(loaded);
return data;
}
function getTrackingPos(paramList,currentTime)
{
// assuming the paramList is sorted,
// paramlist is array of 4 (xyz,videoTime)
// first check smallest and largest
// this will return null as the position, since we won't show the position
// return (videoTime, newPos, lastPos)
if(currentTime <= paramList[0][3])
{
return [paramList[0][3],null,null];
}
var last = paramList.length-1;
if(currentTime > paramList[last][3])
{
return [paramList[last][3],null,null];
}
for(var i=0;i<paramList.length-1;++i)// not the last one
{
// when it is close to that one
if((currentTime > paramList[i][3]) && (currentTime <= paramList[i+1][3]))
{
return [paramList[i+1][3],[
paramList[i+1][0],
paramList[i+1][1],
paramList[i+1][2],
],[
paramList[i][0],
paramList[i][1],
paramList[i][2],
]];
}
}
return [null,null,null];
}
// plugin for globaltime to add video at a time
(function (Popcorn) {
Popcorn.plugin( "setupVideo", {
start: function( event, options ) {
// now the video should be played,
// video object is in the options
var timediff = options.globalTimeline.currentTime() - options.video.offset;
options.video.pp.currentTime(timediff);
//options.vid.showVid();
if (!options.globalTimeline.media.paused) {
options.video.pp.play();
}
},
end: function( event, options ) {
var timediff = options.globalTimeline.currentTime() - options.video.offset;
// console.log(timediff);
if (timediff < 0) {
options.video.pp.pause(0);
} else if (options.globalTimeline.currentTime() > options.video.offset) {
options.video.pp.pause(options.video.pp.duration());
}
}
});
})( Popcorn );
// set up the 3d thing
var personColors = ["red","azure","yellow","navy","white","orange","gray","silver","purple", "turquoise", "chocolate", "coral","ivory", "gold","green","blue"];
function init()
{
// camera as global for mouse click
var camera = null;
var raycaster = null; // global, so that in draw() loop it can be updated
var mouse = null;
var scene = null;
var scaleFactor = 10;// all cordinates scale to this for easier navigation
var videos = {};// video dictionary for global event [videoname => {}]
var colors = ["red","azure","yellow","navy","white","orange","gray","silver","purple", "turquoise", "chocolate", "coral","ivory", "gold","green","blue"];
var trackingVideoPerson2img = {};
var winHeight = $("#webgl").height();
var winWidth = $("#webgl").width();
raycaster = new THREE.Raycaster();// for selecting thing
scene = new THREE.Scene();
// (field of view,aspect ratio,near, far) // closer to near or further to far won't be randered
// fov is 0 -360, 60 is normal
camera = new THREE.PerspectiveCamera(60, winWidth/winHeight, 0.01, 1000);
// ------------------------------------------for the background ----------------------------------
var texture = createBackgroundTexture(512, 512);
texture.minFilter = texture.magFilter = THREE.LinearFilter;
var bg = new THREE.Mesh(
new THREE.PlaneBufferGeometry(2, 2, 0),
new THREE.MeshBasicMaterial({
map: texture
})
);
//bg.position.z = -1;
bg.material.depthTest = false;
bg.material.depthWrite = false;
var sceneBG = new THREE.Scene();
sceneBG.add(bg);
var backgroundCamera = new THREE.Camera();
//-----------------------------------------------------------------------------------------
var renderer = new THREE.WebGLRenderer();
//renderer.setClearColor(new THREE.Color("silver"));
renderer.setSize(winWidth,winHeight);
renderer.autoClear = false; // we need to render both background and foreground scene
// add a axis thing
//var axes = new THREE.AxisHelper( 10 );
//scene.add(axes);
// load the point cloud!
var plyLoaded = false;
var loader = new THREE.PLYLoader();
loader.load(plyPath,
// onLoad
function(geometry){
// geometry has position, color
//console.log(geometry.attributes.color);//{uuid: "0539B2BF-1596-43F2-A644-B32602AD51EC", array: Float32Array[108513], itemSize: 3, count: 36171, normalized: false…}
//console.log(geometry.attributes.color.count); //36171
//console.log(geometry.attributes.color.array.length); //108513
var material = new THREE.PointsMaterial({ vertexColors: true, size: 0.4 });
var mesh = new THREE.Points(geometry, material);//its position is 0,0,0
mesh.scale.set(1.0,1.0,1.0);
mesh.rotation.z-=1.5;
mesh.position.z+=12.0;
mesh.position.x+=32.0;
mesh.position.y-=5.0;
scene.add(mesh);
if(plyLoaded == false)//that means the progress cannot get it
{
$("#loadProgress").hide();
// when the ply loaded, check video loaded or not
plyLoaded = true;
if(plyLoaded && (readies == videoCount))
{
setupTimeline();
}
}
},
//onprogress
function ( event ) { //XMLHttpRequestProgressEvent {isTrusted: true, position: 3774, totalSize: 2296551, lengthComputable: true, loaded: 3774…}bubbles: falsecancelBubble: falsecancelable: falsecurrentTarget: XMLHttpRequestdefaultPrevented: falseeventPhase: 0isTrusted: trueisTrusted: truelengthComputable: trueloaded: 3774path: Array[0]position: 3774returnValue: truesrcElement: XMLHttpRequesttarget: XMLHttpRequesttimeStamp: 827.5500000000001total: 2296551totalSize: 2296551type: "progress"__proto__: ProgressEvent undefined undefined
// console.log( event );
//put the loading progress to a progress bar
if(event.lengthComputable == false)
{
var progress = 100;
}
else
{
var loaded = event.loaded/event.total;
var progress = parseFloat(loaded)*100;
}
//console.log(progress);
progress = progress.toFixed(3) + "%";
$("#loadProgress").children("div.bar").width(progress).html(progress);
if(event.loaded== event.total)
{
$("#loadProgress").hide();
// when the ply loaded, check video loaded or not
plyLoaded = true;
if(plyLoaded && (readies == videoCount))
{
setupTimeline();
}
}
},
function(){}//onError
);
var readies = 0;
var videoCount = video_data.length;
function readyVideo()
{
// when a video is "canplaythrough", this will be called
//console.log($(this)); // this is a popcorn object
readies+=1;
if((readies == videoCount) && plyLoaded)
{
// now we have the duration and offset, we can setup the control timeline
setupTimeline();
}
};
var globalTimeline = null;
var fulldur = 0.0;// the full duration of all videos (and some more)
function setupTimeline()
{
//console.log("video loaded, start setting up timeline");
// get the full duration of the global timeline
for(var videoname in videos)
{
var video = videos[videoname].video;
var offset = videos[videoname].offset;
var extend = video.duration + offset+1.0;
if(extend > fulldur)
{
fulldur = extend;
}
//remove some event listeners
//console.log(videos[videoname].pp.duration());
videos[videoname].pp.off("canplaythrough");
// only show the fist video
if(offset != 0.0)
{
var videogroup = scene.getObjectByName(videoname);
if(videogroup!=null)
{
videogroup.visible = false;
}
}
}
//console.log(fulldur);
// make a null video wrapper as the global timeline
var glpp = Popcorn.HTMLNullVideoElement("#videoTimeline");
glpp.src = "#t=,"+fulldur;
globalTimeline = Popcorn(glpp);
globalTimeline.currentTime(0);
// make the block in the timeline, add video to timeline trigger event
for(var videoname in videos)
{
var video = videos[videoname];
var temp = $("<div class='block'>"+
"<div class='video' title="+videoname+"></div>"+
"</div>");
temp.children("div.video").css({
"width":video.pp.duration()/fulldur * 100+"%",
"left":video.offset/fulldur * 100+ "%",
"backgroundColor":video.color,
});
//console.log(video.video.duration);
$("#videoTimeline > div.videos").append(temp);
//set up timeupdate listener for each video for fixing deplay
video.pp.on("timeupdate",function(){
var delay = (globalTimeline.currentTime() - (this.offset + this.currentTime()));
if (!globalTimeline.media.paused && (Math.abs(delay) > 1.5)) { // bigger than seconds
this.currentTime(globalTimeline.currentTime() - this.offset);
}
});
// set up an popcorn event for each video
globalTimeline.setupVideo({
"start":video.offset,
"end":video.offset+video.pp.duration(),
"globalTimeline":globalTimeline,
"video":video,
});
}
// setup event for playing the global timeline and not
globalTimeline.on("play",function(){
// toggle playback button
$("#playGlobal").hide();
$("#pauseGlobal").show();
// check each video whether they should play
for(var videoname in videos)
{
var video = videos[videoname];
var duration = video.pp.duration();
var offset = video.offset;
// >= because 0 and 0
if((globalTimeline.currentTime() >= offset) && (globalTimeline.currentTime() < offset+duration))
{
video.pp.play();
}
}
});
globalTimeline.on("pause",function(){
$("#playGlobal").show();
$("#pauseGlobal").hide();
for(var videoname in videos)
{
var video = videos[videoname];
video.pp.pause(globalTimeline.currentTime() - video.offset);
//video.video.pause();
}
});
//adjust the playback pin
globalTimeline.on("timeupdate",function(){
if (this.currentTime() > fulldur - 0.5) {
this.pause(fulldur - 0.5);
}
var pct = this.currentTime() / fulldur * 100;
$("#timeNow").html(cw.sec2time(this.currentTime()));
$("#timePos").css("left",pct+"%");
$("#timeNow").css("left",pct+"%");
// check all video and see whether they should be visible
// if the current global time is not in the with in this video, hide it
for(var videoname in videos)
{
var videogroup = scene.getObjectByName(videoname);
var video = videos[videoname];
if(videogroup!=null)
{
if((globalTimeline.currentTime() < video.offset) || (globalTimeline.currentTime() > video.offset+video.pp.duration()))
{
videogroup.visible = false;
}
else
{
videogroup.visible = true;
}
}
}
});
// bind the play and pasu button
cw.ec("#playGlobal",function(){
if(globalTimeline.currentTime() < fulldur)
{
globalTimeline.play();
}
});
cw.ec("#pauseGlobal",function(){
globalTimeline.pause();
});
// bind the space for pressing play or pause
// or seek
$(window).keypress(function(e){
var tag = e.target.tagName.toLowerCase();
if((tag != "input") && (tag != "textarea"))
{
if((e.charCode === 32) || (e.keyCode === 0) || (e.keyCode === 32))
{
e.preventDefault();
//console.log("space "+(new Date()));
// check should be play or not
if($("#playGlobal").is(":visible"))
{
$("#playGlobal").trigger(cw.ectype);
}
else
{
$("#pauseGlobal").trigger(cw.ectype);
}
}
else if((e.keyCode === 44) || (e.keyCode === 46))
{
// use < and > for seeking
$("#videoTimeline").trigger({
"type":"seek",
"goLeft":(e.keyCode === 44),
"go":0.01,
});
}
}
});
//setup events for draging the playback pin
var resume = false;// whether to resume after drag
$("#timePos").draggable({
"containment": "#videoTimeline",
"axis": "x",
"start": function (event, ui) {
if (globalTimeline.media.paused) {
resume = false;
}
else
{
resume = true;
}
//console.log(resume);
globalTimeline.pause();
},
"drag": function (event, ui) {
//console.log(ui.position.left);
$("#timeNow").css({
left: ui.position.left
});
var pct = ui.position.left / $('#videoTimeline').width();
$("#timeNow").html(cw.sec2time(fulldur * pct));
},
"stop": function (event, ui) {
var pct = $("#timePos").position().left / $('#videoTimeline').width();
globalTimeline.currentTime(fulldur * pct);
if (resume) {
globalTimeline.play();
} else {
// each video seek to here
for(var videoname in videos)
{
var video = videos[videoname];
video.pp.pause(globalTimeline.currentTime() - video.offset);
}
}
}
});
// click the time to seek
cw.ec("#videoTimeline",function(e){
console.log("this");
var clickleft = e.pageX - $('#videoTimeline').offset().left;
var pct = clickleft / $('#videoTimeline').width();
seekGlobal(pct);
});
$("#videoTimeline").on("seek",function(e){
var curPct = globalTimeline.currentTime()/fulldur;
var addOrMinusPct = e.go;
if(e.goLeft)
{
seekGlobal(curPct-addOrMinusPct);
}
else
{
seekGlobal(curPct+addOrMinusPct);
}
});
function seekGlobal(pct)
{
pct = pct<0?0.0:pct;
pct = pct>1?1.0:pct;
globalTimeline.currentTime(fulldur * pct);
if (globalTimeline.media.paused) {
for(var videoname in videos)
{
videos[videoname].pp.currentTime(globalTimeline.currentTime() - videos[videoname].offset);
}
}
}
}
var count=0;