get tiff compression type

[suresh0208]

Hi,

I want to a series of  TIFF files compression [LZW or NONE] in a folder.

Can anyone help me in this . . .

The Script goes here:

#target photoshop

var myInputFolder = Folder.selectDialog ("INPUT");

if(myInputFolder!=null){

    var myFiles = myInputFolder.getFiles(/\.(tif)$/i);

    for(var fileIndex=0;fileIndex<myFiles.length;fileIndex++)

    {

        var currentFile = myFiles[fileIndex];

        if(currentFile instanceof File)

        {

                if(currentFile.hidden) continue;

                    var doc = app.open(currentFile);

                    if(doc.encoding != TIFFEncoding.TIFFLZW)

                    {

                        //Here I want to write code for checking compression of TIFF.

                         alert("Compression should be NONE")

                     }

                    }

                }

            }

Thanks In Advance,

Suresh.N.

[I have gone]

Here is a function to get the compression.

#target photoshop;
var file = File("/j/testing/tifs/11.tif");

alert(getTifCompession(file));


function getTifCompession(file){
if (ExternalObject.AdobeXMPScript == undefined) ExternalObject.AdobeXMPScript = new ExternalObject('lib:AdobeXMPScript');
var xmpf = new XMPFile(file.fsName, XMPConst.UNKNOWN, XMPConst.OPEN_FOR_READ);
var xmp = xmpf.getXMP();
 try{
var comp = xmp.getProperty( XMPConst.NS_TIFF, "Compression" ).toString();
var result = '';
switch( Number(comp) ){  
     case 1:  result = "none"; break;  
     case 5:  result = "lzw";  break;
     case 7:  result = "jpg";  break;
     case 8:  result =  "zip";  break;
     default: result =  "unknown";  
} 
return result;
}catch(e){return undefined;}
};

[suresh0208]

Hi,

Thanks for the reply.

But I want to Check number of TIFF files in a folder (For E.g 100 files). If the TIFF compression not equal to NONE It should give Error. Script is Working with the single file.

I tried for Multiple files like this. But results nothing. Can you help you in this.

Code goes here:

#target photoshop

var myInputFolder = Folder.selectDialog ("INPUT");

if(myInputFolder!=null){

    var myFiles = myInputFolder.getFiles(/\.(tif)$/i);

    for(var fileIndex=0;fileIndex<myFiles.length;fileIndex++)

    {

        var currentFile = myFiles[fileIndex];

        if(currentFile instanceof File)

        {

                if(currentFile.hidden) continue;

                    var file = app.open(currentFile);

function getTifCompession(file){ 

if (ExternalObject.AdobeXMPScript == undefined) ExternalObject.AdobeXMPScript = new ExternalObject('lib:AdobeXMPScript'); 

var xmpf = new XMPFile(file.fsName, XMPConst.UNKNOWN, XMPConst.OPEN_FOR_READ); 

var xmp = xmpf.getXMP(); 

try{ 

var comp = xmp.getProperty( XMPConst.NS_TIFF, "Compression" ).toString(); 

var result = ''; 

switch( Number(comp) ){   

     case 1:  result = "none"; break;   

     case 5:  result = "lzw";  break; 

     case 7:  result = "jpg";  break; 

     case 8:  result =  "zip";  break; 

     default: result =  "unknown";   

}  

return result; 

}catch(e){return undefined;} 

}; 

alert(getTifCompession(file));

                    }

                }

            }

Thanks in Advance,

Regards,

Suresh.N.

[c.pfaffenbichler]

Does this help?

// tif compression check by philip cord;

// 2015, use it at your own risk;

#target photoshop

var files = selectTiffFile(true);

var theErrors = new Array;

for (var m = 0; m < files.length; m++) {

var thisFile = files;

if (getTifCompession(thisFile) != "none") {theErrors.push(thisFile)}

};

alert("these files are compressed\n"+theErrors.join("\n")); 

////////////////////////////////////

////// select file //////

function selectTiffFile (multi) {

if (multi == true) {var theString = "please select tiff files"}

else {var theString = "please select one file"};

if ($.os.search(/windows/i) != -1) {var theFiles = File.openDialog (theString, '*.tif;*.tiff', multi)}

else {var theFiles = File.openDialog (theString, getFiles, multi)};

////// filter files  for mac //////

function getFiles (theFile) {

    if (theFile.name.match(/\.(tif|tiff)$/i) || theFile.constructor.name == "Folder") {

        return true

        };

  };

return theFiles

};

// by philip cord;

function getTifCompession(file){ 

if (ExternalObject.AdobeXMPScript == undefined) ExternalObject.AdobeXMPScript = new ExternalObject('lib:AdobeXMPScript'); 

var xmpf = new XMPFile(file.fsName, XMPConst.UNKNOWN, XMPConst.OPEN_FOR_READ); 

var xmp = xmpf.getXMP(); 

try{ 

var comp = xmp.getProperty( XMPConst.NS_TIFF, "Compression" ).toString(); 

var result = ''; 

switch( Number(comp) ){   

     case 1:  result = "none"; break;   

     case 5:  result = "lzw";  break; 

     case 7:  result = "jpg";  break; 

     case 8:  result =  "zip";  break; 

     default: result =  "unknown";   

}  

return result; 

}catch(e){return undefined;} 

};