FrameNumerToBinory

FrameNumberToBinary.jsx

{
	// Demo Palette.jsx
	// 
	// This script creates and shows a floating palette.
    
    //var bitLayers = new Array();
    var bitWidth = 5;   // width of the shape representing binary
    var bitHeight = 8; // height of the shape representing binary
    var bitSpacing = 7; // spacing between shapes
    var bitBGHeight = 0; // do not set, calculated below
    var bitColor = [1,0,0]; /// color of the shape [R,G,B] Use only full color values: [1,0,0] or [0,1,0] or [0,0,1]. Other values will not work.
    var fillColor = [0,0,0]; /// color of the bar [R,G,B]
     var bitOffsetFromTop = 3; // shape distance from the top of the bar
    var bitOffsetFromBottom = 3;  // shape distance from the bottom of the bar
   
	
	function FrameNumbering(thisObj)
	{
        
        bitBGHeight = bitOffsetFromTop+bitHeight+bitOffsetFromBottom; //calculate height of the bar
     
        var firstComp = app.project.item(1);

        firstComp.height = firstComp.height+bitBGHeight; //increase the height by the bar height

        if(!checkFrames(firstComp)){ // check if the there is enough space for the binary numbers. If shapes and spacing are wide, the numbers may not fit the video 
            return;
        };

       var bar = firstComp.layers.addSolid(fillColor,"bitBG", firstComp.width, bitBGHeight, 1) //create the bar
      // bitLayers.push(bar);
       resetAnchor(bar); // reset anchor for easier positioning
       
       setPosition(bar,0,firstComp.height-bitBGHeight,false); //position the bar to the bottom of the composition
   
       calcBits(firstComp,bitColor); //create shapes
       
        if(bitColor[0] == 1) bitColor = 0; // determine which color is used, and alert it for the AS3, 0=R, 1=G, 2=B. Only solid, full colors can be used
        else if(bitColor[1] == 1) bitColor = 1;
        else bitColor = 2;       
       
       var alertTxt = "Copy these values to the ActionScript file: \n";
       alertTxt +="_bitWidth="+bitWidth+";\n";
       alertTxt +="_bitHeight="+bitHeight+";\n";
       alertTxt +="_bitSpacing="+bitSpacing+";\n";
       alertTxt +="_bgHeight="+bitBGHeight+";\n";
       alertTxt +="_bitColor="+bitColor+";\n";
       alertTxt +="_bitOffsetFromBottom="+bitOffsetFromBottom+";\n";
       alertTxt +="_bitOffsetFromTop="+bitOffsetFromTop+";\n";
       alertTxt +="_frames="+(firstComp.frameRate*firstComp.duration)+";\n";
       
       alert(alertTxt); //alert used parameters so they can be copied to AS3
       
	}
	
    function setPosition(element,x,y,z){ //sets position of an element

    var pos =element.transform.position.value;
    if(x !== false) pos[0] = x;
    if(y !== false) pos[1] = y;
    if(z !== false) pos[2] = z;
    element.transform.position.setValue(pos)


    }  

    function resetAnchor(element){ // resets anchor to top left corner

    element.transform.anchorPoint.setValue([0,0,0])


    }  

     function checkFrames(comp){ //calculate wether the binary fits the video
        var fps = comp.frameRate*comp.duration;
        var bitSpace = bitWidth*bitSpacing;
        var binaryLen = fps.toString(2).split("").length;
        bitSpace = bitSpace*binaryLen;
        if(bitSpace > comp.width) {
            alert("The video is not wide enough for the bit size and spacing. Required width is "+bitSpace+"px and video is "+comp.width+"px wide.");
            return false;
         }
        return true;
         //timeToCurrentFormat(comp.duration,fps,true)
     }   
 
    function calcBits(comp,bitColor){ //create shapes
         var fps = comp.frameRate*comp.duration;
         var bin = "1"+fps.toString(2);
         var bit;
         for(var i =0; i<bin.length;i++){
             createBit(comp,bitColor,i) 
         }   
     } 
 
    function createBit(comp,bitColor,pos){ //create shapes
         var gfx = comp.layers.addSolid(bitColor,"bit"+pos, bitWidth, bitHeight, 1)
          resetAnchor(gfx);
         setPosition(gfx,comp.width-(bitWidth+bitSpacing)*(pos)-bitWidth,comp.height-bitHeight-bitOffsetFromBottom,false);
         //add the expression
        var expression = 'bitpos = '+pos+';frame = timeToFrames();frame = parseInt(frame,10).toString(2).split("").reverse().join("");if(frame.length < bitpos) bit = "0";else bit = frame.substr(bitpos,1);if(bit == "1") value = 100;else value = 0;';
         gfx.opacity.expression = expression;
    }    

	//run the code
	FrameNumbering(this);
    

}