#------------------------------------------------------------------------------ # File: PhotoMechanic.pm # # Description: Read/write Camera Bits Photo Mechanic information # # Revisions: 10/28/2006 - P. Harvey Created #------------------------------------------------------------------------------ package Image::ExifTool::PhotoMechanic; use strict; use vars qw($VERSION); use Image::ExifTool qw(:DataAccess :Utils); use Image::ExifTool::Exif; use Image::ExifTool::IPTC; use Image::ExifTool::XMP; $VERSION = '1.04'; sub ProcessPhotoMechanic($$); # color class names my %colorClasses = ( 0 => '0 (None)', 1 => '1 (Winner)', 2 => '2 (Winner alt)', 3 => '3 (Superior)', 4 => '4 (Superior alt)', 5 => '5 (Typical)', 6 => '6 (Typical alt)', 7 => '7 (Extras)', 8 => '8 (Trash)', ); # main tag table IPTC-format records in PhotoMechanic trailer %Image::ExifTool::PhotoMechanic::Main = ( GROUPS => { 2 => 'Image' }, PROCESS_PROC => \&Image::ExifTool::IPTC::ProcessIPTC, WRITE_PROC => \&Image::ExifTool::IPTC::WriteIPTC, NOTES => q{ The Photo Mechanic trailer contains data in an IPTC-format structure, with soft edit information stored under record number 2. }, 2 => { Name => 'SoftEdit', SubDirectory => { TagTable => 'Image::ExifTool::PhotoMechanic::SoftEdit', }, }, ); # raw/preview crop coordinate conversions my %rawCropConv = ( ValueConv => '$val / 655.36', ValueConvInv => 'int($val * 655.36 + 0.5)', PrintConv => 'sprintf("%.3f%%",$val)', PrintConvInv => '$val=~tr/ %//d; $val', ); # Record 2 -- PhotoMechanic soft edit information %Image::ExifTool::PhotoMechanic::SoftEdit = ( GROUPS => { 2 => 'Image' }, WRITE_PROC => \&Image::ExifTool::IPTC::WriteIPTC, CHECK_PROC => \&Image::ExifTool::IPTC::CheckIPTC, WRITABLE => 1, FORMAT => 'int32s', 209 => { Name => 'RawCropLeft', %rawCropConv }, 210 => { Name => 'RawCropTop', %rawCropConv }, 211 => { Name => 'RawCropRight', %rawCropConv }, 212 => { Name => 'RawCropBottom', %rawCropConv }, 213 => 'ConstrainedCropWidth', 214 => 'ConstrainedCropHeight', 215 => 'FrameNum', 216 => { Name => 'Rotation', PrintConv => { 0 => '0', 1 => '90', 2 => '180', 3 => '270', }, }, 217 => 'CropLeft', 218 => 'CropTop', 219 => 'CropRight', 220 => 'CropBottom', 221 => { Name => 'Tagged', PrintConv => { 0 => 'No', 1 => 'Yes' }, }, 222 => { Name => 'ColorClass', PrintConv => \%colorClasses, }, 223 => 'Rating', 236 => { Name => 'PreviewCropLeft', %rawCropConv }, 237 => { Name => 'PreviewCropTop', %rawCropConv }, 238 => { Name => 'PreviewCropRight', %rawCropConv }, 239 => { Name => 'PreviewCropBottom', %rawCropConv }, ); # PhotoMechanic XMP properties %Image::ExifTool::PhotoMechanic::XMP = ( GROUPS => { 0 => 'XMP', 1 => 'XMP-photomech', 2 => 'Image' }, NAMESPACE => { photomechanic => 'http://ns.camerabits.com/photomechanic/1.0/' }, WRITE_PROC => \&Image::ExifTool::XMP::WriteXMP, WRITABLE => 'string', NOTES => q{ Below is a list of the observed PhotoMechanic XMP tags. The actual namespace prefix is "photomechanic" but ExifTool shortens this in the "XMP-photomech" family 1 group name. }, ColorClass => { Writable => 'integer', PrintConv => \%colorClasses, }, CountryCode => { Avoid => 1, Groups => { 2 => 'Location' } }, EditStatus => { }, PMVersion => { }, Prefs => { Notes => 'format is "Tagged:0, ColorClass:1, Rating:2, FrameNum:3"', PrintConv => q{ $val =~ s[\s*(\d+):\s*(\d+):\s*(\d+):\s*(\S*)] [Tagged:$1, ColorClass:$2, Rating:$3, FrameNum:$4]; return $val; }, PrintConvInv => q{ $val =~ s[Tagged:\s*(\d+).*ColorClass:\s*(\d+).*Rating:\s*(\d+).*FrameNum:\s*(\S*)] [$1:$2:$3:$4]is; return $val; }, }, Tagged => { Writable => 'boolean', PrintConv => { False => 'No', True => 'Yes' } }, TimeCreated => { Avoid => 1, Groups => { 2 => 'Time' }, Shift => 'Time', ValueConv => 'Image::ExifTool::Exif::ExifTime($val)', ValueConvInv => 'Image::ExifTool::IPTC::IptcTime($val)', }, ); #------------------------------------------------------------------------------ # Read/write PhotoMechanic information in a file # Inputs: 0) ExifTool object reference, 1) dirInfo reference # Returns: 1 on success, 0 if this file didn't contain PhotoMechanic information # - updates DataPos to point to start of PhotoMechanic information # - updates DirLen to trailer length sub ProcessPhotoMechanic($$) { my ($et, $dirInfo) = @_; my $raf = $$dirInfo{RAF}; my $offset = $$dirInfo{Offset} || 0; my $outfile = $$dirInfo{OutFile}; my $verbose = $et->Options('Verbose'); my $out = $et->Options('TextOut'); my $rtnVal = 0; my ($buff, $footer); for (;;) { # read and validate trailer footer (last 12 bytes) last unless $raf->Seek(-12-$offset, 2) and $raf->Read($footer, 12) == 12; last unless $footer =~ /cbipcbbl$/; my $size = unpack('N', $footer); if ($size & 0x80000000 or not $raf->Seek(-$size-12, 1)) { $et->Warn('Bad PhotoMechanic trailer'); last; } unless ($raf->Read($buff, $size) == $size) { $et->Warn('Error reading PhotoMechanic trailer'); last; } $rtnVal = 1; # we read the trailer successfully # set variables returned in dirInfo hash $$dirInfo{DataPos} = $raf->Tell() - $size; $$dirInfo{DirLen} = $size + 12; my %dirInfo = ( DataPt => \$buff, DataPos => $$dirInfo{DataPos}, DirStart => 0, DirLen => $size, Parent => 'PhotoMechanic', ); my $tagTablePtr = GetTagTable('Image::ExifTool::PhotoMechanic::Main'); if (not $outfile) { # extract trailer information $et->DumpTrailer($dirInfo) if $verbose or $$et{HTML_DUMP}; $et->ProcessDirectory(\%dirInfo, $tagTablePtr); } elsif ($$et{DEL_GROUP}{PhotoMechanic}) { # delete the trailer $verbose and print $out " Deleting PhotoMechanic trailer\n"; ++$$et{CHANGED}; } else { # rewrite the trailer my $newPt; my $newBuff = $et->WriteDirectory(\%dirInfo, $tagTablePtr); if (defined $newBuff) { $newPt = \$newBuff; # write out the modified trailer my $pad = 0x800 - length($newBuff); if ($pad > 0 and not $et->Options('Compact')) { # pad out to 2kB like PhotoMechanic does $newBuff .= "\0" x $pad; } # generate new footer $footer = pack('N', length($$newPt)) . 'cbipcbbl'; } else { $newPt = \$buff; # just copy existing trailer } # write out the trailer Write($outfile, $$newPt, $footer) or $rtnVal = -1; } last; } return $rtnVal; } 1; # end __END__ =head1 NAME Image::ExifTool::PhotoMechanic - Read/write Photo Mechanic information =head1 SYNOPSIS This module is used by Image::ExifTool =head1 DESCRIPTION This module contains definitions required by Image::ExifTool to read and write information written by the Camera Bits Photo Mechanic software. =head1 AUTHOR Copyright 2003-2016, Phil Harvey (phil at owl.phy.queensu.ca) This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. =head1 ACKNOWLEDGEMENTS Many thanks to the great support provided by Camera Bits, and in particular for the valuable exchanges with Kirk Baker. Based on this experience, I can say that the technical support offered by Camera Bits is second to none. =head1 SEE ALSO L, L =cut