ReNamer:Scripts:Exiv2

Script integrates Exiv2 library in order to extract EXIF/IPTC/XMP tags from many types of images. CRW, CR2, RAW images are also supported.

Requirements

• exiv2.exe in ReNamer's folder

Download and extract Exiv2 package to a temporary location, locate the "bin" folder that contains "exiv2.exe", and copy everything from the "bin" folder into ReNamer's folder.

Note that Exiv2 comes in several different build packages, which have different run-time dependencies. If you are experiencing problems with the missing DLLs, it usually means that you are missing the required dependencies. For example, if you are using the Visual Studio variant (e.g. package named exiv2-0.26-msvc.tar.gz), then ensure that you have installed the necessary Microsoft Visual Studio / C++ Redistributables.

Script - Extract tag

Author: Denis Kozlov. Date: 2018-08-25.

Extract a particular tag and insert its content into the filename, as prefix. In this example "Exif.Image.Model" tag is used, see TAG constant.

You can check the list of all available tags by running exiv2.exe -pa <file> command. Also, see help via exiv2.exe --help for more options.

• Tested with ReNamer 6.9 and Exiv2 0.26.

const
  TAG = 'Exif.Image.Model';
  EXECUTABLE = 'exiv2.exe';
  PARAMETERS = '-Pt -K ' + TAG;
var
  Command, Output: String;
  UnicodeOutput: WideString;
begin
  Command := '"' + EXECUTABLE + '" ' + PARAMETERS + ' "' + FilePath + '"';
  if ExecConsoleApp(Command, Output) = 0 then
  begin
    UnicodeOutput := WideTrim(OemToWide(Output));
    if Length(UnicodeOutput) > 0 then
      FileName := UnicodeOutput + ' ' + FileName;
  end;
end.

Script - Extract tag alternative

Author: Denis Kozlov. Date: 2013-04-01.

Extract unformatted line out of the command line output of the exiv2.exe tool. This sample script extracts Image Timestamp, but you can adjust EXIV and TAG constants to extract other tags.

Hint: Image Timestamp value is usually formatted as "yyyy:mm:dd hh:mm:ss" which contains an illegal filename character ":". The illegal character can be easily replaced using an additional Replace rule.

• Tested with ReNamer 5.74.4 Beta.

const
  EXE = 'exiv2.exe';
  TAG = 'Image timestamp\s*\:\s*(.*?)[\r\n]';
 
var
  Command, Output: String;
  Matches: TWideStringArray;  
 
begin
  Command := EXE+' "'+FilePath+'"';
  if ExecConsoleApp(Command, Output) = 0 then
  begin
    Matches := SubMatchesRegEx(Output, TAG, False);
    if Length(Matches) > 0 then
      FileName := Matches[0] + WideExtractFileExt(FileName);
  end;
end.

To extract IPTC Headline tag, you would need to make following changes:

EXE = 'exiv2.exe -pi';
TAG = 'Iptc.Application2.Headline\s*\w*\s*\d*\s*(.*?)[\r\n]';

Script - Extract EXIF date and reformat

Author: Denis Kozlov. Date: 2015-11-25.

Extract EXIF date and reformat it according to user specification (DATE_FORMAT constant).

• Tested with ReNamer 6.3.

const
  EXIV = 'exiv2.exe';
  DATE_TAG = 'Image timestamp\s*\:\s*(.*?)[\r\n]';
  DATE_PARTS = '(.+)\:(.+)\:(.+)\ (.+)\:(.+)\:(.+)';
  DATE_FORMAT = 'YYYY-MM-DD HH.NN.SS';

var
  Command, Output: String;
  Matches, DateParts: TWideStringArray;
  Year, Month, Day, Hours, Minutes, Seconds: Integer;
  Date: TDateTime;
  DateOK: Boolean;

begin
  Command := EXIV + ' "' + FilePath + '"';
  if ExecConsoleApp(Command, Output) = 0 then
  begin
    Matches := SubMatchesRegEx(Output, DATE_TAG, False);
    if Length(Matches) > 0 then
    begin
      DateParts := SubMatchesRegEx(Matches[0], DATE_PARTS, False);
      if Length(DateParts) > 0 then
      begin
        DateOK :=
          TryStrToInt(DateParts[0], Year) and TryStrToInt(DateParts[1], Month) and
          TryStrToInt(DateParts[2], Day) and TryStrToInt(DateParts[3], Hours) and
          TryStrToInt(DateParts[4], Minutes) and TryStrToInt(DateParts[5], Seconds);
        if DateOK then
        begin
          Date := EncodeDateTime(Year, Month, Day, Hours, Minutes, Seconds, 0);
          FileName := FormatDateTime(DATE_FORMAT, Date) + WideExtractFileExt(FileName);
        end;
      end;
    end;
  end;
end.