After Effects Camera Parser

aeCameraParser.js

var aeCameraParser = function () {
    "use strict";
    
    var cameraAnimation = {};    
    var kLines = "<1br />";
    
    var kSplit = [
        {aeK : "Units Per Second", jsVar:"framerate"},   
        {aeK : "Source Width", jsVar:"viewportWidth"},   
        {aeK : "Source Height", jsVar:"viewportHeight"},   
        {aeK : "Orientation", jsVar:"rotation"}, 
        {aeK : "Z Rotation", jsVar:"rotationZ", opposite:true},
        {aeK : "Y Rotation", jsVar:"rotationY", opposite:true},
        {aeK : "X Rotation", jsVar:"rotationX", opposite:false},        
        {aeK : "Position", jsVar:"position"},
    ]
    
    var removeSpaces = function (nsText) {
        nsText = nsText.replace(/(\n\r|\n|\r)/gm, kLines);inve
        nsText = nsText.replace(/\t/g, " ");
        var re1 = /\s+/g;
        nsText = nsText.replace(re1, " ");
        var re2 = /\<1br \/>/gi;
        nsText = nsText.replace(re2, "\n");

        return nsText;
    }

    var getConfig = function(lines) {
       for(var i = 0; i<lines.length; i++){
            for(var j = 0; j<kSplit.length ; j++){
                var lineContent = lines[i];
                var kSearch = kSplit[j].aeK;
                if(lineContent.indexOf(kSearch) > -1){
                    var pos = lineContent.indexOf(kSearch);
                    var selectedJsObject = lineContent.slice(pos+kSearch.length);
                    var jsVar = kSplit[j].jsVar                    
                    cameraAnimation[jsVar] = parseInt(removeSpaces(selectedJsObject));
                }
            }
        }
    }
    
    var getTransform = function(lines, oppositeYZ) {
        var currentK = "";
        var factOpposite = oppositeYZ ? -1 : 1;
        var oppositeValue = false;
        for(var i = 0; i<lines.length; i++){
            var lineContent = lines[i];            
            for(var j = 0; j<kSplit.length ; j++){
                var kSearch = kSplit[j].aeK;
                if(isNaN(parseInt(lineContent))){
                    if(lineContent.indexOf(kSearch) > -1){
                        currentK = kSplit[j].jsVar;
                        oppositeValue = kSplit[j].opposite !== undefined ? kSplit[j].opposite : false;
                        cameraAnimation[currentK] = [];
                    }
                }
            }
            
            if(!isNaN(parseInt(lineContent)) && currentK != ""){
                lineContent = removeSpaces(lineContent);      
                var splitValues = lineContent.split(" ");                
                var objFrame;
                if(splitValues.length > 4){
                   objFrame = {
                        x : parseFloat(splitValues[2]),
                        y : parseFloat(splitValues[3])*factOpposite,
                        z : parseFloat(splitValues[4])*factOpposite
                    }
                }else {
                    factOpposite = oppositeValue ? -1 : 1
                
                    objFrame = parseFloat(splitValues[2]*factOpposite);
                }
                
                cameraAnimation[currentK].push(objFrame);
            }
        }        
    }

    return {     
        process: function (source, oppositeYZ) {
            var clean = source.replace("End of Keyframe Data", "");
            var split1 = clean.split("Transform");
            
            for(var i = 0; i< split1.length ;i++){
                var reline = split1[i].replace(/(\r\n|\n|\r)/gm, kLines);
                var splitLine = reline.split(kLines);                
                if(i == 0) {
                    getConfig(splitLine);
                } else {
                    getTransform(splitLine, oppositeYZ);
                }
            }

            cameraAnimation.totalFrames = cameraAnimation.position.length;
            return cameraAnimation;
        }
    }
}();