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- #------------------------------------------------------------------------------
- # File: MakerNotes.pm
- #
- # Description: Read and write EXIF maker notes
- #
- # Revisions: 11/11/2004 - P. Harvey Created
- #------------------------------------------------------------------------------
- package Image::ExifTool::MakerNotes;
- use strict;
- use vars qw($VERSION);
- use Image::ExifTool qw(:DataAccess);
- use Image::ExifTool::Exif;
- sub ProcessUnknown($$$);
- sub ProcessUnknownOrPreview($$$);
- sub ProcessCanon($$$);
- sub ProcessGE2($$$);
- sub ProcessKodakPatch($$$);
- sub WriteUnknownOrPreview($$$);
- sub FixLeicaBase($$;$);
- $VERSION = '1.97';
- my $debug; # set to 1 to enable debugging code
- # conditional list of maker notes
- # Notes:
- # - This is NOT a normal tag table!
- # - All byte orders are now specified because we can now
- # write maker notes into a file with different byte ordering!
- # - Put these in alphabetical order to make TagNames documentation nicer.
- @Image::ExifTool::MakerNotes::Main = (
- # decide which MakerNotes to use (based on camera make/model)
- {
- Name => 'MakerNoteApple',
- Condition => '$$valPt =~ /^Apple iOS\0/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Apple::Main',
- ByteOrder => 'Unknown',
- Start => '$valuePtr + 14',
- Base => '$start - 14',
- },
- },
- {
- # this maker notes starts with a standard TIFF header at offset 0x0a
- # (must check Nikon signature first because Nikon Capture NX can generate
- # NEF images containing Nikon maker notes from JPEG images of any camera model)
- Name => 'MakerNoteNikon',
- Condition => '$$valPt=~/^Nikon\x00\x02/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Nikon::Main',
- Start => '$valuePtr + 18',
- Base => '$start - 8',
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteCanon',
- # (starts with an IFD)
- Condition => '$$self{Make} =~ /^Canon/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Canon::Main',
- ProcessProc => \&ProcessCanon,
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteCasio',
- # do negative lookahead assertion just to get tags
- # in a nice order for documentation
- # (starts with an IFD)
- Condition => '$$self{Make}=~/^CASIO/ and $$valPt!~/^(QVC|DCI)\0/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Casio::Main',
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteCasio2',
- # (starts with "QVC\0" [Casio] or "DCI\0" [Concord])
- # (also found in AVI and MOV videos)
- Condition => '$$valPt =~ /^(QVC|DCI)\0/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Casio::Type2',
- Start => '$valuePtr + 6',
- ByteOrder => 'Unknown',
- FixBase => 1, # necessary for AVI and MOV videos
- },
- },
- {
- Name => 'MakerNoteFLIR',
- # (starts with IFD, Make is 'FLIR Systems AB' or 'FLIR Systems')
- Condition => '$$self{Make} =~ /^FLIR Systems/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::FLIR::Main',
- Start => '$valuePtr',
- ByteOrder => 'Unknown',
- },
- },
- {
- # The Fuji maker notes use a structure similar to a self-contained
- # TIFF file, but with "FUJIFILM" instead of the standard TIFF header
- Name => 'MakerNoteFujiFilm',
- # (starts with "FUJIFILM" -- also used by some Leica, Minolta and Sharp models)
- # (GE FujiFilm models start with "GENERALE")
- Condition => '$$valPt =~ /^(FUJIFILM|GENERALE)/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::FujiFilm::Main',
- # there is an 8-byte maker tag (FUJIFILM) we must skip over
- OffsetPt => '$valuePtr+8',
- # the pointers are relative to the subdirectory start
- # (before adding the offsetPt) - PH
- Base => '$start',
- ByteOrder => 'LittleEndian',
- },
- },
- {
- Name => 'MakerNoteGE',
- Condition => '$$valPt =~ /^GE(\0\0|NIC\0)/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::GE::Main',
- Start => '$valuePtr + 18',
- FixBase => 1,
- AutoFix => 1,
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteGE2',
- Condition => '$$valPt =~ /^GE\x0c\0\0\0\x16\0\0\0/',
- # Note: we will get a "Maker notes could not be parsed" warning when writing
- # these maker notes because they aren't currently supported for writing
- SubDirectory => {
- TagTable => 'Image::ExifTool::FujiFilm::Main',
- ProcessProc => \&ProcessGE2,
- Start => '$valuePtr + 12',
- Base => '$start - 6',
- ByteOrder => 'LittleEndian',
- # hard patch for crazy offsets
- FixOffsets => '$valuePtr -= 210 if $tagID >= 0x1303',
- },
- },
- {
- Name => 'MakerNoteHasselblad',
- Condition => '$$self{Make} eq "Hasselblad"',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Unknown::Main',
- ByteOrder => 'Unknown',
- Start => '$valuePtr',
- Base => 0, # (avoids warnings since maker notes are not self-contained)
- },
- },
- # (the GE X5 has really messed up EXIF-like maker notes starting with
- # "GENIC\x0c\0" --> currently not decoded)
- {
- Name => 'MakerNoteHP', # PhotoSmart 720 (also Vivitar 3705, 3705B and 3715)
- Condition => '$$valPt =~ /^(Hewlett-Packard|Vivitar)/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::HP::Main',
- ProcessProc => \&ProcessUnknown,
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteHP2', # PhotoSmart E427
- # (this type of maker note also used by BenQ, Mustek, Sanyo, Traveler and Vivitar)
- Condition => '$$valPt =~ /^610[\0-\4]/',
- NotIFD => 1,
- SubDirectory => {
- TagTable => 'Image::ExifTool::HP::Type2',
- Start => '$valuePtr',
- ByteOrder => 'LittleEndian',
- },
- },
- {
- Name => 'MakerNoteHP4', # PhotoSmart M627
- Condition => '$$valPt =~ /^IIII\x04\0/',
- NotIFD => 1,
- SubDirectory => {
- TagTable => 'Image::ExifTool::HP::Type4',
- Start => '$valuePtr',
- ByteOrder => 'LittleEndian',
- },
- },
- {
- Name => 'MakerNoteHP6', # PhotoSmart M425, M525 and M527
- Condition => '$$valPt =~ /^IIII\x06\0/',
- NotIFD => 1,
- SubDirectory => {
- TagTable => 'Image::ExifTool::HP::Type6',
- Start => '$valuePtr',
- ByteOrder => 'LittleEndian',
- },
- },
- {
- Name => 'MakerNoteISL', # (used in Samsung GX20 samples)
- Condition => '$$valPt =~ /^ISLMAKERNOTE000\0/',
- # this maker notes starts with a TIFF-like header at offset 0x10
- SubDirectory => {
- TagTable => 'Image::ExifTool::Unknown::Main',
- Start => '$valuePtr + 24',
- Base => '$start - 8',
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteJVC',
- Condition => '$$valPt=~/^JVC /',
- SubDirectory => {
- TagTable => 'Image::ExifTool::JVC::Main',
- Start => '$valuePtr + 4',
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteJVCText',
- Condition => '$$self{Make}=~/^(JVC|Victor)/ and $$valPt=~/^VER:/',
- NotIFD => 1,
- SubDirectory => {
- TagTable => 'Image::ExifTool::JVC::Text',
- },
- },
- {
- Name => 'MakerNoteKodak1a',
- Condition => '$$self{Make}=~/^EASTMAN KODAK/ and $$valPt=~/^KDK INFO/',
- NotIFD => 1,
- SubDirectory => {
- TagTable => 'Image::ExifTool::Kodak::Main',
- Start => '$valuePtr + 8',
- ByteOrder => 'BigEndian',
- },
- },
- {
- Name => 'MakerNoteKodak1b',
- Condition => '$$self{Make}=~/^EASTMAN KODAK/ and $$valPt=~/^KDK/',
- NotIFD => 1,
- SubDirectory => {
- TagTable => 'Image::ExifTool::Kodak::Main',
- Start => '$valuePtr + 8',
- ByteOrder => 'LittleEndian',
- },
- },
- {
- # used by various Kodak, HP, Pentax and Minolta models
- Name => 'MakerNoteKodak2',
- Condition => q{
- $$valPt =~ /^.{8}Eastman Kodak/s or
- $$valPt =~ /^\x01\0[\0\x01]\0\0\0\x04\0[a-zA-Z]{4}/
- },
- NotIFD => 1,
- SubDirectory => {
- TagTable => 'Image::ExifTool::Kodak::Type2',
- ByteOrder => 'BigEndian',
- },
- },
- {
- # not much to key on here, but we know the
- # upper byte of the year should be 0x07:
- Name => 'MakerNoteKodak3',
- Condition => q{
- $$self{Make} =~ /^EASTMAN KODAK/ and
- $$valPt =~ /^(?!MM|II).{12}\x07/s and
- $$valPt !~ /^(MM|II|AOC)/
- },
- NotIFD => 1,
- SubDirectory => {
- TagTable => 'Image::ExifTool::Kodak::Type3',
- ByteOrder => 'BigEndian',
- },
- },
- {
- Name => 'MakerNoteKodak4',
- Condition => q{
- $$self{Make} =~ /^Eastman Kodak/ and
- $$valPt =~ /^.{41}JPG/s and
- $$valPt !~ /^(MM|II|AOC)/
- },
- NotIFD => 1,
- SubDirectory => {
- TagTable => 'Image::ExifTool::Kodak::Type4',
- ByteOrder => 'BigEndian',
- },
- },
- {
- Name => 'MakerNoteKodak5',
- Condition => q{
- $$self{Make}=~/^EASTMAN KODAK/ and
- ($$self{Model}=~/CX(4200|4230|4300|4310|6200|6230)/ or
- # try to pick up similar models we haven't tested yet
- $$valPt=~/^\0(\x1a\x18|\x3a\x08|\x59\xf8|\x14\x80)\0/)
- },
- NotIFD => 1,
- SubDirectory => {
- TagTable => 'Image::ExifTool::Kodak::Type5',
- ByteOrder => 'BigEndian',
- },
- },
- {
- Name => 'MakerNoteKodak6a',
- Condition => q{
- $$self{Make}=~/^EASTMAN KODAK/ and
- $$self{Model}=~/DX3215/
- },
- NotIFD => 1,
- SubDirectory => {
- TagTable => 'Image::ExifTool::Kodak::Type6',
- ByteOrder => 'BigEndian',
- },
- },
- {
- Name => 'MakerNoteKodak6b',
- Condition => q{
- $$self{Make}=~/^EASTMAN KODAK/ and
- $$self{Model}=~/DX3700/
- },
- NotIFD => 1,
- SubDirectory => {
- TagTable => 'Image::ExifTool::Kodak::Type6',
- ByteOrder => 'LittleEndian',
- },
- },
- {
- Name => 'MakerNoteKodak7',
- # look for something that looks like a serial number
- # (confirmed serial numbers have the format KXXXX########, but we also
- # accept other strings from sample images that may be serial numbers)
- Condition => q{
- $$self{Make}=~/Kodak/i and
- $$valPt =~ /^[CK][A-Z\d]{3} ?[A-Z\d]{1,2}\d{2}[A-Z\d]\d{4}[ \0]/
- },
- NotIFD => 1,
- SubDirectory => {
- TagTable => 'Image::ExifTool::Kodak::Type7',
- ByteOrder => 'LittleEndian',
- },
- },
- {
- Name => 'MakerNoteKodak8a',
- # IFD-format maker notes: look for reasonable number of
- # entries and check format and count of first IFD entry
- Condition => q{
- $$self{Make}=~/Kodak/i and
- ($$valPt =~ /^\0[\x02-\x7f]..\0[\x01-\x0c]\0\0/s or
- $$valPt =~ /^[\x02-\x7f]\0..[\x01-\x0c]\0..\0\0/s)
- },
- SubDirectory => {
- TagTable => 'Image::ExifTool::Kodak::Type8',
- ProcessProc => \&ProcessUnknown,
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteKodak8b',
- # these maker notes have an extra 2 bytes after the entry count
- # (this is handled by the patch). Also, the IFD uses a Format 13,
- # which is some 2-byte format (not Float, as decoded by ExifTool)
- # - written by the PixPro AZ251, AZ361, AZ262, AZ521
- Condition => q{
- $$self{Make}=~/Kodak/i and
- $$valPt =~ /^MM\0\x2a\0\0\0\x08\0.\0\0/
- },
- SubDirectory => {
- TagTable => 'Image::ExifTool::Kodak::Type8',
- ProcessProc => \&ProcessKodakPatch,
- ByteOrder => 'BigEndian',
- Start => '$valuePtr + 8',
- Base => '$start - 8',
- },
- },
- {
- Name => 'MakerNoteKodak8c',
- # TIFF-format maker notes
- Condition => q{
- $$self{Make}=~/Kodak/i and
- $$valPt =~ /^(MM\0\x2a\0\0\0\x08|II\x2a\0\x08\0\0\0)/
- },
- SubDirectory => {
- TagTable => 'Image::ExifTool::Kodak::Type8',
- ProcessProc => \&ProcessUnknown,
- ByteOrder => 'Unknown',
- Start => '$valuePtr + 8',
- Base => '$start - 8',
- },
- },
- {
- Name => 'MakerNoteKodak9',
- # test header and Kodak:DateTimeOriginal
- Condition => '$$valPt =~ m{^IIII[\x02\x03]\0.{14}\d{4}/\d{2}/\d{2} }s',
- NotIFD => 1,
- SubDirectory => {
- TagTable => 'Image::ExifTool::Kodak::Type9',
- ByteOrder => 'LittleEndian',
- },
- },
- {
- Name => 'MakerNoteKodak10',
- # yet another type of Kodak IFD-format maker notes:
- # this type begins with a byte order indicator,
- # followed immediately by the IFD
- Condition => q{
- $$self{Make}=~/Kodak/i and
- $$valPt =~ /^(MM\0[\x02-\x7f]|II[\x02-\x7f]\0)/
- },
- SubDirectory => {
- TagTable => 'Image::ExifTool::Kodak::Type10',
- ProcessProc => \&ProcessUnknown,
- ByteOrder => 'Unknown',
- Start => '$valuePtr + 2',
- },
- },
- {
- Name => 'MakerNoteKodak11',
- # these maker notes have an extra 2 bytes after the entry count
- # - written by the PixPro S-1 (Note: Make is "JK Imaging, Ltd.", so check Model for "Kodak")
- Condition => q{
- $$self{Model}=~/Kodak/i and
- $$valPt =~ /^II\x2a\0\x08\0\0\0.\0\0\0/
- },
- SubDirectory => {
- TagTable => 'Image::ExifTool::Kodak::Type11',
- ProcessProc => \&ProcessKodakPatch,
- ByteOrder => 'LittleEndian',
- Start => '$valuePtr + 8',
- Base => '$start - 8',
- },
- },
- {
- Name => 'MakerNoteKodakUnknown',
- Condition => '$$self{Make}=~/Kodak/i and $$valPt!~/^AOC\0/',
- NotIFD => 1,
- SubDirectory => {
- TagTable => 'Image::ExifTool::Kodak::Unknown',
- ByteOrder => 'BigEndian',
- },
- },
- {
- Name => 'MakerNoteKyocera',
- # (starts with "KYOCERA")
- Condition => '$$valPt =~ /^KYOCERA/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Unknown::Main',
- Start => '$valuePtr + 22',
- Base => '$start + 2',
- EntryBased => 1,
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteMinolta',
- Condition => q{
- $$self{Make}=~/^(Konica Minolta|Minolta)/i and
- $$valPt !~ /^(MINOL|CAMER|MLY0|KC|\+M\+M|\xd7)/
- },
- SubDirectory => {
- TagTable => 'Image::ExifTool::Minolta::Main',
- ByteOrder => 'Unknown',
- },
- },
- {
- # the DiMAGE E323 (MINOL) and E500 (CAMER), and some models
- # of Mustek, Pentax, Ricoh and Vivitar (CAMER).
- Name => 'MakerNoteMinolta2',
- Condition => '$$valPt =~ /^(MINOL|CAMER)\0/ and $$self{OlympusCAMER} = 1',
- SubDirectory => {
- # these models use Olympus tags in the range 0x200-0x221 plus 0xf00
- TagTable => 'Image::ExifTool::Olympus::Main',
- Start => '$valuePtr + 8',
- ByteOrder => 'Unknown',
- },
- },
- {
- # /^MLY0/ - DiMAGE G400, G500, G530, G600
- # /^KC/ - Revio KD-420Z, DiMAGE E203
- # /^+M+M/ - DiMAGE E201
- # /^\xd7/ - DiMAGE RD3000
- Name => 'MakerNoteMinolta3',
- Condition => '$$self{Make} =~ /^(Konica Minolta|Minolta)/i',
- Binary => 1,
- Notes => 'not EXIF-based',
- },
- {
- Name => 'MakerNoteMotorola',
- Condition => '$$valPt=~/^MOT\0/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Motorola::Main',
- Start => '$valuePtr + 8',
- Base => '$start - 8',
- ByteOrder => 'Unknown',
- },
- },
- {
- # older Nikon maker notes
- Name => 'MakerNoteNikon2',
- Condition => '$$valPt=~/^Nikon\x00\x01/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Nikon::Type2',
- Start => '$valuePtr + 8',
- ByteOrder => 'LittleEndian',
- },
- },
- {
- # headerless Nikon maker notes
- Name => 'MakerNoteNikon3',
- Condition => '$$self{Make}=~/^NIKON/i',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Nikon::Main',
- ByteOrder => 'Unknown', # most are little-endian, but D1 is big
- },
- },
- {
- Name => 'MakerNoteNintendo',
- # (starts with an IFD)
- Condition => '$$self{Make} eq "Nintendo"',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Nintendo::Main',
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteOlympus',
- # (if Make is 'SEIKO EPSON CORP.', starts with "EPSON\0")
- # (if Make is 'OLYMPUS OPTICAL CO.,LTD' or 'OLYMPUS CORPORATION',
- # starts with "OLYMP\0")
- Condition => '$$valPt =~ /^(OLYMP|EPSON)\0/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Olympus::Main',
- Start => '$valuePtr + 8',
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteOlympus2',
- # new Olympus maker notes start with "OLYMPUS\0"
- Condition => '$$valPt =~ /^OLYMPUS\0/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Olympus::Main',
- Start => '$valuePtr + 12',
- Base => '$start - 12',
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteLeica',
- # (starts with "LEICA\0\0\0")
- Condition => '$$self{Make} eq "LEICA"',
- SubDirectory => {
- # many Leica models use the same format as Panasonic
- TagTable => 'Image::ExifTool::Panasonic::Main',
- Start => '$valuePtr + 8',
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteLeica2', # used by the M8
- # (starts with "LEICA\0\0\0")
- Condition => '$$self{Make} =~ /^Leica Camera AG/ and $$valPt =~ /^LEICA\0\0\0/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Panasonic::Leica2',
- # (the offset base is different in JPEG and DNG images, but we
- # can copy makernotes from one to the other, so we need special
- # logic to decide which base to apply)
- ProcessProc => \&FixLeicaBase,
- Start => '$valuePtr + 8',
- Base => '$start', # (- 8 for DNG images!)
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteLeica3', # used by the R8 and R9
- # (starts with IFD)
- Condition => q{
- $$self{Make} =~ /^Leica Camera AG/ and $$valPt !~ /^LEICA/ and
- $$self{Model} ne "S2" and $$self{Model} ne "LEICA M (Typ 240)"
- },
- SubDirectory => {
- TagTable => 'Image::ExifTool::Panasonic::Leica3',
- Start => '$valuePtr',
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteLeica4', # used by the M9/M-Monochrom
- # (M9 and M Monochrom start with "LEICA0\x03\0")
- Condition => '$$self{Make} =~ /^Leica Camera AG/ and $$valPt =~ /^LEICA0/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Panasonic::Leica4',
- Start => '$valuePtr + 8',
- Base => '$start - 8', # (yay! Leica fixed the M8 problem)
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteLeica5', # used by the X1/X2/X VARIO/T
- # (X1 starts with "LEICA\0\x01\0", Make is "LEICA CAMERA AG")
- # (X2 starts with "LEICA\0\x05\0", Make is "LEICA CAMERA AG")
- # (X VARIO starts with "LEICA\0\x04\0", Make is "LEICA CAMERA AG")
- # (T (Typ 701) starts with "LEICA\0\0x6", Make is "LEICA CAMERA AG")
- # (X (Typ 113) starts with "LEICA\0\0x7", Make is "LEICA CAMERA AG")
- Condition => '$$valPt =~ /^LEICA\0[\x01\x04\x05\x06\x07]\0/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Panasonic::Leica5',
- Start => '$valuePtr + 8',
- Base => '$start - 8',
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteLeica6', # used by the S2, M (Typ 240) and S (Typ 006)
- # (starts with "LEICA\0\x02\xff", Make is "Leica Camera AG", but test the
- # model names separately because the maker notes data may not be loaded
- # at the time this is tested if they are in a JPEG trailer. Also, this
- # header is used by the M Monochrom (Type 246), with different offsets.)
- Condition => q{
- ($$self{Make} eq 'Leica Camera AG' and ($$self{Model} eq 'S2' or
- $$self{Model} eq 'LEICA M (Typ 240)' or $$self{Model} eq 'LEICA S (Typ 006)'))
- },
- DataTag => 'LeicaTrailer', # (generates fixup name for this tag)
- LeicaTrailer => 1, # flag to special-case this tag in the Exif code
- SubDirectory => {
- TagTable => 'Image::ExifTool::Panasonic::Leica6',
- Start => '$valuePtr + 8',
- ByteOrder => 'Unknown',
- # NOTE: Leica uses absolute file offsets when this maker note is stored
- # as a JPEG trailer -- this case is handled by ProcessLeicaTrailer in
- # Panasonic.pm, and any "Base" defined here is ignored for this case.
- # ExifTool may also create S2/M maker notes inside the APP1 segment when
- # copying from other files, and for this the normal EXIF offsets are used,
- # Base should not be defined!
- },
- },
- {
- Name => 'MakerNoteLeica7', # used by the M Monochrom (Typ 246)
- # (starts with "LEICA\0\x02\xff", Make is "Leica Camera AG")
- Condition => '$$valPt =~ /^LEICA\0\x02\xff/',
- DataTag => 'LeicaTrailer', # (generates fixup name for this tag)
- LeicaTrailer => 1, # flag to special-case this tag in the Exif code
- SubDirectory => {
- TagTable => 'Image::ExifTool::Panasonic::Leica6',
- Start => '$valuePtr + 8',
- ByteOrder => 'Unknown',
- Base => '-$base', # uses absolute file offsets
- },
- },
- {
- Name => 'MakerNoteLeica8', # used by the Q (Type 116)
- # (Q (Typ 116) starts with "LEICA\0\x08\0", Make is "LEICA CAMERA AG")
- # (SL (Typ 601) starts with "LEICA\0\x09\0", Make is "LEICA CAMERA AG")
- Condition => '$$valPt =~ /^LEICA\0[\x08\x09]\0/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Panasonic::Leica5',
- Start => '$valuePtr + 8',
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteLeica9', # used by the M9/M-Monochrom
- # (M9 and M Monochrom start with "LEICA0\x03\0")
- Condition => '$$self{Make} =~ /^Leica Camera AG/ and $$valPt =~ /^LEICA\0\x02\0/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Panasonic::Leica9',
- Start => '$valuePtr + 8',
- Base => '$start - 8',
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNotePanasonic',
- # (starts with "Panasonic\0")
- Condition => '$$valPt=~/^Panasonic/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Panasonic::Main',
- Start => '$valuePtr + 12',
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNotePanasonic2',
- # (starts with "Panasonic\0")
- Condition => '$$self{Make}=~/^Panasonic/ and $$valPt=~/^MKE/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Panasonic::Type2',
- ByteOrder => 'LittleEndian',
- },
- },
- {
- Name => 'MakerNotePentax',
- # (starts with "AOC\0", but so does MakerNotePentax3)
- # (also used by some Samsung models)
- Condition => q{
- $$valPt=~/^AOC\0/ and
- $$self{Model} !~ /^PENTAX Optio ?[34]30RS\s*$/
- },
- SubDirectory => {
- TagTable => 'Image::ExifTool::Pentax::Main',
- # process as Unknown maker notes because the start offset and
- # byte ordering are so variable
- ProcessProc => \&ProcessUnknown,
- # offsets can be totally whacky for Pentax maker notes,
- # so attempt to fix the offset base if possible
- FixBase => 1,
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNotePentax2',
- # (starts with an IFD)
- # Casio-like maker notes used only by the Optio 330 and 430
- Condition => '$$self{Make}=~/^Asahi/ and $$valPt!~/^AOC\0/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Pentax::Type2',
- ProcessProc => \&ProcessUnknown,
- FixBase => 1,
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNotePentax3',
- # (starts with "AOC\0", like the more common Pentax maker notes)
- # Casio maker notes used only by the Optio 330RS and 430RS
- Condition => '$$self{Make}=~/^Asahi/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Casio::Type2',
- ProcessProc => \&ProcessUnknown,
- FixBase => 1,
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNotePentax4',
- # (starts with 3 or 4 digits)
- # HP2-like text-based maker notes used by Optio E20
- Condition => '$$self{Make}=~/^PENTAX/ and $$valPt=~/^\d{3}/',
- NotIFD => 1,
- SubDirectory => {
- TagTable => 'Image::ExifTool::Pentax::Type4',
- Start => '$valuePtr',
- ByteOrder => 'LittleEndian',
- },
- },
- {
- Name => 'MakerNotePentax5',
- # (starts with "PENTAX \0")
- # used by cameras such as the Q, Optio S1, RS1500 and WG-1
- Condition => '$$valPt=~/^PENTAX \0/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Pentax::Main',
- Start => '$valuePtr + 10',
- Base => '$start - 10',
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNotePentax6',
- # (starts with "S1\0\0\0\0\0\0\x0c\0\0\0")
- Condition => '$$valPt=~/^S1\0{6}\x0c\0{3}/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Pentax::S1',
- Start => '$valuePtr + 12',
- Base => '$start - 12',
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNotePhaseOne',
- # Starts with: 'IIIITwaR' or 'IIIICwaR' (have seen both written by P25)
- # (have also seen code which expects 'MMMMRawT')
- Condition => q{
- return undef unless $$valPt =~ /^(IIII.waR|MMMMRaw.)/s;
- $self->OverrideFileType($$self{TIFF_TYPE} = 'IIQ') if $count > 1000000;
- return 1;
- },
- NotIFD => 1,
- SubDirectory => { TagTable => 'Image::ExifTool::PhaseOne::Main' },
- PutFirst => 1, # place immediately after TIFF header
- },
- {
- Name => 'MakerNoteReconyx',
- Condition => q{
- $$valPt =~ /^\x01\xf1([\x02\x03]\x00)?/ and
- ($1 or $$self{Make} eq "RECONYX")
- },
- SubDirectory => {
- TagTable => 'Image::ExifTool::Reconyx::Main',
- ByteOrder => 'Little-endian',
- },
- },
- {
- Name => 'MakerNoteRicoh',
- # (my test R50 image starts with " \x02\x01" - PH)
- Condition => q{
- $$self{Make} =~ /^(PENTAX )?RICOH/ and
- $$valPt =~ /^(Ricoh| |MM\0\x2a|II\x2a\0)/i and
- $$valPt !~ /^(MM\0\x2a\0\0\0\x08\0.\0\0|II\x2a\0\x08\0\0\0.\0\0\0)/s and
- $$self{Model} ne 'RICOH WG-M1'
- },
- SubDirectory => {
- TagTable => 'Image::ExifTool::Ricoh::Main',
- Start => '$valuePtr + 8',
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteRicoh2',
- # (the Ricoh HZ15 starts with "MM\0\x2a" and the Pentax XG-1 starts with "II\x2a\0",
- # but an extra 2 bytes of padding after the IFD entry count prevents these from
- # being processed as a standard IFD. Note that the offsets for the HZ15 are all
- # zeros, but they seem to be mostly OK for the XG-1)
- Condition => q{
- $$self{Make} =~ /^(PENTAX )?RICOH/ and ($$self{Model} eq 'RICOH WG-M1' or
- $$valPt =~ /^(MM\0\x2a\0\0\0\x08\0.\0\0|II\x2a\0\x08\0\0\0.\0\0\0)/s)
- },
- SubDirectory => {
- TagTable => 'Image::ExifTool::Ricoh::Type2',
- Start => '$valuePtr + 8',
- Base => '$start - 8',
- ByteOrder => 'Unknown',
- ProcessProc => \&ProcessKodakPatch,
- },
- },
- {
- Name => 'MakerNoteRicohText',
- Condition => '$$self{Make}=~/^RICOH/',
- NotIFD => 1,
- SubDirectory => {
- TagTable => 'Image::ExifTool::Ricoh::Text',
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteSamsung1a',
- # Samsung STMN maker notes WITHOUT PreviewImage
- Condition => '$$valPt =~ /^STMN\d{3}.\0{4}/s',
- Binary => 1,
- Notes => 'Samsung "STMN" maker notes without PreviewImage',
- },
- {
- Name => 'MakerNoteSamsung1b',
- # Samsung STMN maker notes WITH PreviewImage
- Condition => '$$valPt =~ /^STMN\d{3}/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Samsung::Main',
- },
- },
- {
- Name => 'MakerNoteSamsung2',
- # Samsung EXIF-format maker notes
- Condition => q{
- $$self{Make} eq 'SAMSUNG' and ($$self{TIFF_TYPE} eq 'SRW' or
- $$valPt=~/^(\0.\0\x01\0\x07\0{3}\x04|.\0\x01\0\x07\0\x04\0{3})0100/s)
- },
- SubDirectory => {
- TagTable => 'Image::ExifTool::Samsung::Type2',
- # Samsung is very inconsistent here, and uses absolute offsets for some
- # models and relative offsets for others, so process as Unknown
- ProcessProc => \&ProcessUnknown,
- FixBase => 1,
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteSanyo',
- # (starts with "SANYO\0")
- Condition => '$$self{Make}=~/^SANYO/ and $$self{Model}!~/^(C4|J\d|S\d)\b/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Sanyo::Main',
- Validate => '$val =~ /^SANYO/',
- Start => '$valuePtr + 8',
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteSanyoC4',
- # The C4 offsets are wrong by 12, so they must be fixed
- Condition => '$$self{Make}=~/^SANYO/ and $$self{Model}=~/^C4\b/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Sanyo::Main',
- Validate => '$val =~ /^SANYO/',
- Start => '$valuePtr + 8',
- FixBase => 1,
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteSanyoPatch',
- # The J1, J2, J4, S1, S3 and S4 offsets are completely screwy
- Condition => '$$self{Make}=~/^SANYO/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Sanyo::Main',
- Validate => '$val =~ /^SANYO/',
- Start => '$valuePtr + 8',
- ByteOrder => 'Unknown',
- FixOffsets => 'Image::ExifTool::Sanyo::FixOffsets($valuePtr, $valEnd, $size, $tagID, $wFlag)',
- },
- },
- {
- Name => 'MakerNoteSigma',
- # (starts with "SIGMA\0")
- Condition => '$$self{Make}=~/^(SIGMA|FOVEON)/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Sigma::Main',
- Validate => '$val =~ /^(SIGMA|FOVEON)/',
- Start => '$valuePtr + 10',
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteSony',
- # (starts with "SONY DSC \0" or "SONY CAM \0")
- # (TF1 starts with "\0\0SONY PIC\0")
- # (Hasselblad models start with "VHAB \0")
- Condition => '$$valPt=~/^(SONY (DSC|CAM|MOBILE)|\0\0SONY PIC\0|VHAB \0)/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Sony::Main',
- Start => '$valuePtr + 12',
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteSony2',
- # (starts with "SONY PI\0" -- DSC-S650/S700/S750)
- Condition => '$$valPt=~/^SONY PI\0/ and $$self{OlympusCAMER}=1',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Olympus::Main',
- Start => '$valuePtr + 12',
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteSony3',
- # (starts with "PREMI\0" -- DSC-S45/S500)
- Condition => '$$valPt=~/^(PREMI)\0/ and $$self{OlympusCAMER}=1',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Olympus::Main',
- Start => '$valuePtr + 8',
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteSony4',
- # (starts with "SONY PIC\0" -- DSC-H200/J20/W370/W510, MHS-TS20)
- Condition => '$$valPt=~/^SONY PIC\0/',
- SubDirectory => { TagTable => 'Image::ExifTool::Sony::PIC' },
- },
- {
- Name => 'MakerNoteSony5', # used in SR2 and ARW images
- Condition => '$$self{Make}=~/^SONY/ and $$valPt!~/^\x01\x00/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Sony::Main',
- Start => '$valuePtr',
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteSonyEricsson',
- Condition => '$$valPt =~ /^SEMC MS\0/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Sony::Ericsson',
- Start => '$valuePtr + 20',
- Base => '$start - 8',
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteSonySRF',
- Condition => '$$self{Make}=~/^SONY/',
- SubDirectory => {
- TagTable => 'Image::ExifTool::Sony::SRF',
- Start => '$valuePtr',
- ByteOrder => 'Unknown',
- },
- },
- {
- Name => 'MakerNoteUnknownText',
- Condition => '$$valPt =~ /^[\x09\x0d\x0a\x20-\x7e]+\0*$/',
- Notes => 'unknown text-based maker notes',
- # show as binary if it is too long
- ValueConv => 'length($val) > 64 ? \$val : $val',
- ValueConvInv => '$val',
- },
- {
- Name => 'MakerNoteUnknownBinary',
- # "LSI1\0" - SilverFast
- Condition => '$$valPt =~ /^LSI1\0/',
- Notes => 'unknown binary maker notes',
- Binary => 1,
- },
- {
- Name => 'MakerNoteUnknown',
- PossiblePreview => 1,
- SubDirectory => {
- TagTable => 'Image::ExifTool::Unknown::Main',
- ProcessProc => \&ProcessUnknownOrPreview,
- WriteProc => \&WriteUnknownOrPreview,
- ByteOrder => 'Unknown',
- FixBase => 2,
- },
- },
- );
- # insert writable properties so we can write our maker notes
- my $tagInfo;
- foreach $tagInfo (@Image::ExifTool::MakerNotes::Main) {
- $$tagInfo{Writable} = 'undef';
- $$tagInfo{Format} = 'undef', # (make sure we don't convert this when reading)
- $$tagInfo{WriteGroup} = 'ExifIFD';
- $$tagInfo{Groups} = { 1 => 'MakerNotes' };
- next unless $$tagInfo{SubDirectory};
- # make all SubDirectory tags block-writable
- $$tagInfo{Binary} = 1,
- $$tagInfo{MakerNotes} = 1;
- }
- #------------------------------------------------------------------------------
- # Get normal offset of value data from end of maker note IFD
- # Inputs: 0) ExifTool object reference
- # Returns: Array: 0) relative flag (undef for no change)
- # 1) normal offset from end of IFD to first value (empty if unknown)
- # 2-N) other possible offsets used by some models
- # Notes: Directory size should be validated before calling this routine
- sub GetMakerNoteOffset($)
- {
- my $et = shift;
- # figure out where we expect the value data based on camera type
- my $make = $$et{Make};
- my $model = $$et{Model};
- my ($relative, @offsets);
- # normally value data starts 4 bytes after end of directory, so this is the default.
- # offsets of 0 and 4 are always allowed even if not specified,
- # but the first offset specified is the one used when writing
- if ($make =~ /^Canon/) {
- push @offsets, ($model =~ /\b(20D|350D|REBEL XT|Kiss Digital N)\b/) ? 6 : 4;
- # some Canon models (FV-M30, Optura50, Optura60) leave 24 unused bytes
- # at the end of the IFD (2 spare IFD entries?)
- push @offsets, 28 if $model =~ /\b(FV\b|OPTURA)/;
- # some Canon PowerShot models leave 12 unused bytes
- push @offsets, 16 if $model =~ /(PowerShot|IXUS|IXY)/;
- } elsif ($make =~ /^CASIO/) {
- # Casio AVI and MOV images use no padding, and their JPEG's use 4,
- # except some models like the EX-S770,Z65,Z70,Z75 and Z700 which use 16,
- # and the EX-Z35 which uses 2 (grrrr...)
- push @offsets, $$et{FILE_TYPE} =~ /^(RIFF|MOV)$/ ? 0 : (4, 16, 2);
- } elsif ($make =~ /^(General Imaging Co.|GEDSC IMAGING CORP.)/i) {
- push @offsets, 0;
- } elsif ($make =~ /^KYOCERA/) {
- push @offsets, 12;
- } elsif ($make =~ /^Leica Camera AG/) {
- if ($model eq 'S2') {
- # lots of empty space before first value in S2 images
- push @offsets, 4, ($$et{FILE_TYPE} eq 'JPEG' ? 286 : 274);
- } elsif ($model eq 'LEICA M MONOCHROM (Typ 246)') {
- push @offsets, 4, 130;
- } elsif ($model eq 'LEICA M (Typ 240)') {
- push @offsets, 4, 118;
- } elsif ($model =~ /^(R8|R9|M8)\b/) {
- push @offsets, 6;
- } else {
- push @offsets, 4;
- }
- } elsif ($make =~ /^OLYMPUS/ and $model =~ /^E-(1|300|330)\b/) {
- push @offsets, 16;
- } elsif ($make =~ /^OLYMPUS/ and
- # these Olympus models are just weird
- $model =~ /^(C2500L|C-1Z?|C-5000Z|X-2|C720UZ|C725UZ|C150|C2Z|E-10|E-20|FerrariMODEL2003|u20D|u10D)\b/)
- {
- # no expected offset --> determine offset empirically via FixBase()
- } elsif ($make =~ /^(Panasonic|JVC)\b/) {
- push @offsets, 0;
- } elsif ($make =~ /^SONY/) {
- # earlier DSLR and "PREMI" models use an offset of 4
- if ($model =~ /^(DSLR-.*|SLT-A(33|35|55V)|NEX-(3|5|C3|VG10E))$/ or
- $$et{OlympusCAMER})
- {
- push @offsets, 4;
- } else {
- push @offsets, 0;
- }
- } elsif ($make eq 'FUJIFILM') {
- # some models have offset of 6, so allow that too (A345,A350,A360,A370)
- push @offsets, 4, 6;
- } elsif ($make =~ /^TOSHIBA/) {
- # similar to Canon, can also have 24 bytes of padding
- push @offsets, 0, 24;
- } elsif ($make =~ /^PENTAX/) {
- push @offsets, 4;
- # the Pentax addressing mode is determined automatically, but
- # sometimes the algorithm gets it wrong, but Pentax always uses
- # absolute addressing, so force it to be absolute
- $relative = 0;
- } elsif ($make =~ /^Konica Minolta/i) {
- # patch for DiMAGE X50, Xg, Z2 and Z10
- push @offsets, 4, -16;
- } elsif ($make =~ /^Minolta/) {
- # patch for DiMAGE 7, X20 and Z1
- push @offsets, 4, -8, -12;
- } else {
- push @offsets, 4; # the normal offset
- }
- return ($relative, @offsets);
- }
- #------------------------------------------------------------------------------
- # Get hash of value offsets / block sizes
- # Inputs: 0) Data pointer, 1) offset to start of directory,
- # 2) hash ref to return value pointers based on tag ID
- # Returns: 0) hash reference: keys are offsets, values are block sizes
- # 1) same thing, but with keys adjusted for value-based offsets
- # Notes: Directory size should be validated before calling this routine
- # - calculates MIN and MAX offsets in entry-based hash
- sub GetValueBlocks($$;$)
- {
- my ($dataPt, $dirStart, $tagPtr) = @_;
- my $numEntries = Get16u($dataPt, $dirStart);
- my ($index, $valPtr, %valBlock, %valBlkAdj, $end);
- for ($index=0; $index<$numEntries; ++$index) {
- my $entry = $dirStart + 2 + 12 * $index;
- my $format = Get16u($dataPt, $entry+2);
- last if $format < 1 or $format > 13;
- my $count = Get32u($dataPt, $entry+4);
- my $size = $count * $Image::ExifTool::Exif::formatSize[$format];
- next if $size <= 4;
- $valPtr = Get32u($dataPt, $entry+8);
- $tagPtr and $$tagPtr{Get16u($dataPt, $entry)} = $valPtr;
- # save location and size of longest block at this offset
- unless (defined $valBlock{$valPtr} and $valBlock{$valPtr} > $size) {
- $valBlock{$valPtr} = $size;
- }
- # adjust for case of value-based offsets
- $valPtr += 12 * $index;
- unless (defined $valBlkAdj{$valPtr} and $valBlkAdj{$valPtr} > $size) {
- $valBlkAdj{$valPtr} = $size;
- my $end = $valPtr + $size;
- if (defined $valBlkAdj{MIN}) {
- # save minimum only if it has a value of 12 or greater
- $valBlkAdj{MIN} = $valPtr if $valBlkAdj{MIN} < 12 or $valBlkAdj{MIN} > $valPtr;
- $valBlkAdj{MAX} = $end if $valBlkAdj{MAX} > $end;
- } else {
- $valBlkAdj{MIN} = $valPtr;
- $valBlkAdj{MAX} = $end;
- }
- }
- }
- return(\%valBlock, \%valBlkAdj);
- }
- #------------------------------------------------------------------------------
- # Fix base for value offsets in maker notes IFD (if necessary)
- # Inputs: 0) ExifTool object ref, 1) DirInfo hash ref
- # Return: amount of base shift (and $dirInfo Base and DataPos are updated,
- # FixedBy is set if offsets fixed, and Relative or EntryBased may be set)
- sub FixBase($$)
- {
- local $_;
- my ($et, $dirInfo) = @_;
- # don't fix base if fixing offsets individually or if we don't want to fix them
- return 0 if $$dirInfo{FixOffsets} or $$dirInfo{NoFixBase};
- my $dataPt = $$dirInfo{DataPt};
- my $dataPos = $$dirInfo{DataPos};
- my $dirStart = $$dirInfo{DirStart} || 0;
- my $entryBased = $$dirInfo{EntryBased};
- my $dirName = $$dirInfo{DirName};
- my $fixBase = $et->Options('FixBase');
- my $setBase = (defined $fixBase and $fixBase ne '') ? 1 : 0;
- my ($fix, $fixedBy, %tagPtr);
- # get hash of value block positions
- my ($valBlock, $valBlkAdj) = GetValueBlocks($dataPt, $dirStart, \%tagPtr);
- return 0 unless %$valBlock;
- # get sorted list of value offsets
- my @valPtrs = sort { $a <=> $b } keys %$valBlock;
- #
- # handle special case of Canon maker notes with TIFF footer containing original offset
- #
- if ($$et{Make} =~ /^Canon/ and $$dirInfo{DirLen} > 8) {
- my $footerPos = $dirStart + $$dirInfo{DirLen} - 8;
- my $footer = substr($$dataPt, $footerPos, 8);
- if ($footer =~ /^(II\x2a\0|MM\0\x2a)/ and # check for TIFF footer
- substr($footer,0,2) eq GetByteOrder()) # validate byte ordering
- {
- my $oldOffset = Get32u(\$footer, 4);
- my $newOffset = $dirStart + $dataPos;
- if ($setBase) {
- $fix = $fixBase;
- } else {
- $fix = $newOffset - $oldOffset;
- return 0 unless $fix;
- # Picasa and ACDSee have a bug where they update other offsets without
- # updating the TIFF footer (PH - 2009/02/25), so test for this case:
- # validate Canon maker note footer fix by checking offset of last value
- my $maxPt = $valPtrs[-1] + $$valBlock{$valPtrs[-1]};
- # compare to end of maker notes, taking 8-byte footer into account
- my $endDiff = $dirStart + $$dirInfo{DirLen} - ($maxPt - $dataPos) - 8;
- # ignore footer offset only if end difference is exactly correct
- # (allow for possible padding byte, although I have never seen this)
- if (not $endDiff or $endDiff == 1) {
- $et->Warn('Canon maker note footer may be invalid (ignored)',1);
- return 0;
- }
- }
- $et->Warn("Adjusted $dirName base by $fix",1);
- $$dirInfo{FixedBy} = $fix;
- $$dirInfo{Base} += $fix;
- $$dirInfo{DataPos} -= $fix;
- return $fix;
- }
- }
- #
- # analyze value offsets to see if they need fixing. The first task is to determine
- # the minimum valid offset used (this is tricky, because we have to weed out bad
- # offsets written by some cameras)
- #
- my $minPt = $$dirInfo{MinOffset} = $valPtrs[0]; # if life were simple, this would be it
- my $ifdLen = 2 + 12 * Get16u($$dirInfo{DataPt}, $dirStart);
- my $ifdEnd = $dirStart + $ifdLen;
- my ($relative, @offsets) = GetMakerNoteOffset($et);
- my $makeDiff = $offsets[0];
- my $verbose = $et->Options('Verbose');
- my ($diff, $shift);
- # calculate expected minimum value offset
- my $expected = $dataPos + $ifdEnd + (defined $makeDiff ? $makeDiff : 4);
- $debug and print "$expected expected\n";
- # zero our counters
- my ($countNeg12, $countZero, $countOverlap) = (0, 0, 0);
- my ($valPtr, $last);
- foreach $valPtr (@valPtrs) {
- printf("%d - %d (%d)\n", $valPtr, $valPtr + $$valBlock{$valPtr},
- $valPtr - ($last || 0)) if $debug;
- if (defined $last) {
- my $gap = $valPtr - $last;
- if ($gap == 0 or $gap == 1) {
- ++$countZero;
- } elsif ($gap == -12 and not $entryBased) {
- # you get this when value offsets are relative to the IFD entry
- ++$countNeg12;
- } elsif ($gap < 0) {
- # any other negative difference indicates overlapping values
- ++$countOverlap if $valPtr; # (but ignore zero value pointers)
- } elsif ($gap >= $ifdLen) {
- # ignore previous minimum if we took a jump to near the expected value
- # (some values can be stored before the IFD)
- $minPt = $valPtr if abs($valPtr - $expected) <= 4;
- }
- # an offset less than 12 is surely garbage, so ignore it
- $minPt = $valPtr if $minPt < 12;
- }
- $last = $valPtr + $$valBlock{$valPtr};
- }
- # could this IFD be using entry-based offsets?
- if ((($countNeg12 > $countZero and $$valBlkAdj{MIN} >= $ifdLen - 2) or
- ($$valBlkAdj{MIN} == $ifdLen - 2 or $$valBlkAdj{MIN} == $ifdLen + 2)
- ) and $$valBlkAdj{MAX} <= $$dirInfo{DirLen}-2)
- {
- # looks like these offsets are entry-based, so use the offsets
- # which have been correcting for individual entry position
- $entryBased = 1;
- $verbose and $et->Warn("$dirName offsets are entry-based",1);
- } else {
- # calculate offset difference from end of IFD to first value
- $diff = ($minPt - $dataPos) - $ifdEnd;
- $shift = 0;
- $countOverlap and $et->Warn("Overlapping $dirName values",1);
- if ($entryBased) {
- $et->Warn("$dirName offsets do NOT look entry-based",1);
- undef $entryBased;
- undef $relative;
- }
- # use PrintIM tag to do special check for correct absolute offsets
- if ($tagPtr{0xe00}) {
- my $ptr = $tagPtr{0xe00} - $dataPos;
- return 0 if $ptr > 0 and $ptr <= length($$dataPt) - 8 and
- substr($$dataPt, $ptr, 8) eq "PrintIM\0";
- }
- # allow a range of reasonable differences for Unknown maker notes
- if ($$dirInfo{FixBase} and $$dirInfo{FixBase} == 2) {
- return 0 if $diff >=0 and $diff <= 24;
- }
- # ******** (used for testing to extract differences) ********
- # $et->FoundTag('Diff', $diff);
- # $et->FoundTag('MakeDiff',$makeDiff);
- }
- #
- # handle entry-based offsets
- #
- if ($entryBased) {
- $debug and print "--> entry-based!\n";
- # most of my entry-based samples have first value immediately
- # after last IFD entry (ie. no padding or next IFD pointer)
- $makeDiff = 0;
- push @offsets, 4; # but some do have a next IFD pointer
- # corrected entry-based offsets are relative to start of first entry
- my $expected = 12 * Get16u($$dirInfo{DataPt}, $dirStart);
- $diff = $$valBlkAdj{MIN} - $expected;
- # set up directory to read values with entry-based offsets
- # (ignore everything and set base to start of first entry)
- $shift = $dataPos + $dirStart + 2;
- $$dirInfo{Base} += $shift;
- $$dirInfo{DataPos} -= $shift;
- $$dirInfo{EntryBased} = 1;
- $$dirInfo{Relative} = 1; # entry-based offsets are relative
- delete $$dirInfo{FixBase}; # no automatic base fix
- undef $fixBase unless $setBase;
- }
- #
- # return without doing shift if offsets look OK
- #
- unless ($setBase) {
- # don't try to fix offsets for whacky cameras
- return $shift unless defined $makeDiff;
- # normal value data starts 4 bytes after IFD, but allow 0 or 4...
- return $shift if $diff == 0 or $diff == 4;
- # also check for allowed make-specific differences
- foreach (@offsets) {
- return $shift if $diff == $_;
- }
- }
- #
- # apply the fix, or issue a warning
- #
- # use default padding of 4 bytes unless already specified
- $makeDiff = 4 unless defined $makeDiff;
- $fix = $makeDiff - $diff; # assume standard diff for this make
- if ($$dirInfo{FixBase}) {
- # set flag if offsets are relative (base is at or above directory start)
- if ($dataPos - $fix + $dirStart <= 0) {
- $$dirInfo{Relative} = (defined $relative) ? $relative : 1;
- }
- if ($setBase) {
- $fixedBy = $fixBase;
- $fix += $fixBase;
- }
- } elsif (defined $fixBase) {
- $fix = $fixBase if $fixBase ne '';
- $fixedBy = $fix;
- } else {
- # print warning unless difference looks reasonable
- if ($diff < 0 or $diff > 16 or ($diff & 0x01)) {
- $et->Warn("Possibly incorrect maker notes offsets (fix by $fix?)",1);
- }
- # don't do the fix (but we already adjusted base if entry-based)
- return $shift;
- }
- if (defined $fixedBy) {
- $et->Warn("Adjusted $dirName base by $fixedBy",1);
- $$dirInfo{FixedBy} = $fixedBy;
- }
- $$dirInfo{Base} += $fix;
- $$dirInfo{DataPos} -= $fix;
- return $fix + $shift;
- }
- #------------------------------------------------------------------------------
- # Find start of IFD in unknown maker notes
- # Inputs: 0) reference to directory information
- # Returns: offset to IFD on success, undefined otherwise
- # - dirInfo may contain TagInfo reference for tag associated with directory
- # - on success, updates DirStart, DirLen, Base and DataPos in dirInfo
- # - also sets Relative flag in dirInfo if offsets are relative to IFD
- # Note: Changes byte ordering!
- sub LocateIFD($$)
- {
- my ($et, $dirInfo) = @_;
- my $dataPt = $$dirInfo{DataPt};
- my $dirStart = $$dirInfo{DirStart} || 0;
- # (ignore MakerNotes DirLen since sometimes this is incorrect)
- my $size = $$dirInfo{DataLen} - $dirStart;
- my $dirLen = defined $$dirInfo{DirLen} ? $$dirInfo{DirLen} : $size;
- my $tagInfo = $$dirInfo{TagInfo};
- my $ifdOffsetPos;
- # the IFD should be within the first 32 bytes
- # (Kyocera sets the current record at 22 bytes)
- my ($firstTry, $lastTry) = (0, 32);
- # make sure Base and DataPos are defined
- $$dirInfo{Base} or $$dirInfo{Base} = 0;
- $$dirInfo{DataPos} or $$dirInfo{DataPos} = 0;
- #
- # use tag information (if provided) to determine directory location
- #
- if ($tagInfo and $$tagInfo{SubDirectory}) {
- my $subdir = $$tagInfo{SubDirectory};
- unless ($$subdir{ProcessProc} and
- ($$subdir{ProcessProc} eq \&ProcessUnknown or
- $$subdir{ProcessProc} eq \&ProcessUnknownOrPreview))
- {
- # look for the IFD at the "Start" specified in our SubDirectory information
- my $valuePtr = $dirStart;
- my $newStart = $dirStart;
- if (defined $$subdir{Start}) {
- #### eval Start ($valuePtr)
- $newStart = eval($$subdir{Start});
- }
- if ($$subdir{Base}) {
- # calculate subdirectory start relative to $base for eval
- my $start = $newStart + $$dirInfo{DataPos};
- my $base = $$dirInfo{Base} || 0;
- #### eval Base ($start,$base)
- my $baseShift = eval($$subdir{Base});
- # shift directory base (note: we may do this again below
- # if an OffsetPt is defined, but that doesn't matter since
- # the base shift is relative to DataPos, which we set too)
- $$dirInfo{Base} += $baseShift;
- $$dirInfo{DataPos} -= $baseShift;
- # this is a relative directory if Base depends on $start
- if ($$subdir{Base} =~ /\$start\b/) {
- $$dirInfo{Relative} = 1;
- # hack to fix Leica quirk
- if ($$subdir{ProcessProc} and $$subdir{ProcessProc} eq \&FixLeicaBase) {
- my $oldStart = $$dirInfo{DirStart};
- $$dirInfo{DirStart} = $newStart;
- FixLeicaBase($et, $dirInfo);
- $$dirInfo{DirStart} = $oldStart;
- }
- }
- }
- # add offset to the start of the directory if necessary
- if ($$subdir{OffsetPt}) {
- if ($$subdir{ByteOrder} =~ /^Little/i) {
- SetByteOrder('II');
- } elsif ($$subdir{ByteOrder} =~ /^Big/i) {
- SetByteOrder('MM');
- } else {
- warn "Can't have variable byte ordering for SubDirectories using OffsetPt\n";
- return undef;
- }
- #### eval OffsetPt ($valuePtr)
- $ifdOffsetPos = eval($$subdir{OffsetPt}) - $dirStart;
- }
- # pinpoint position to look for this IFD
- $firstTry = $lastTry = $newStart - $dirStart;
- }
- }
- #
- # scan for something that looks like an IFD
- #
- if ($dirLen >= 14 + $firstTry) { # minimum size for an IFD
- my $offset;
- IFD_TRY: for ($offset=$firstTry; $offset<=$lastTry; $offset+=2) {
- last if $offset + 14 > $dirLen; # 14 bytes is minimum size for an IFD
- my $pos = $dirStart + $offset;
- #
- # look for a standard TIFF header (Nikon uses it, others may as well),
- #
- if (SetByteOrder(substr($$dataPt, $pos, 2)) and
- Get16u($dataPt, $pos + 2) == 0x2a)
- {
- $ifdOffsetPos = 4;
- }
- if (defined $ifdOffsetPos) {
- # get pointer to IFD
- my $ptr = Get32u($dataPt, $pos + $ifdOffsetPos);
- if ($ptr >= $ifdOffsetPos + 4 and $ptr + $offset + 14 <= $dirLen) {
- # shift directory start and shorten dirLen accordingly
- $$dirInfo{DirStart} += $ptr + $offset;
- $$dirInfo{DirLen} -= $ptr + $offset;
- # shift pointer base to the start of the TIFF header
- my $shift = $$dirInfo{DataPos} + $dirStart + $offset;
- $$dirInfo{Base} += $shift;
- $$dirInfo{DataPos} -= $shift;
- $$dirInfo{Relative} = 1; # set "relative offsets" flag
- return $ptr + $offset;
- }
- undef $ifdOffsetPos;
- }
- #
- # look for a standard IFD (starts with 2-byte entry count)
- #
- my $num = Get16u($dataPt, $pos);
- next unless $num;
- # number of entries in an IFD should be between 1 and 255
- if (!($num & 0xff)) {
- # lower byte is zero -- byte order could be wrong
- ToggleByteOrder();
- $num >>= 8;
- } elsif ($num & 0xff00) {
- # upper byte isn't zero -- not an IFD
- next;
- }
- my $bytesFromEnd = $size - ($offset + 2 + 12 * $num);
- if ($bytesFromEnd < 4) {
- next unless $bytesFromEnd == 2 or $bytesFromEnd == 0;
- }
- # do a quick validation of all format types
- my $index;
- for ($index=0; $index<$num; ++$index) {
- my $entry = $pos + 2 + 12 * $index;
- my $format = Get16u($dataPt, $entry+2);
- my $count = Get32u($dataPt, $entry+4);
- unless ($format) {
- # patch for buggy Samsung NX200 JPEG MakerNotes entry count
- if ($num == 23 and $index == 21 and $$et{Make} eq 'SAMSUNG') {
- Set16u(21, $dataPt, $pos); # really 21 IFD entries!
- $et->Warn('Fixed incorrect Makernote entry count', 1);
- last;
- }
- # allow everything to be zero if not first entry
- # because some manufacturers pad with null entries
- next unless $count or $index == 0;
- # patch for Canon EOS 40D firmware 1.0.4 bug: allow zero format for last entry
- next if $index==$num-1 and $$et{Model}=~/EOS 40D/;
- }
- # patch for Sony cameras like the DSC-P10 that have invalid MakerNote entries
- next if $num == 12 and $$et{Make} eq 'SONY' and $index >= 8;
- # (would like to verify tag ID, but some manufactures don't
- # sort entries in order of tag ID so we don't have much of
- # a handle to verify this field)
- # verify format
- next IFD_TRY if $format < 1 or $format > 13;
- # count must be reasonable (can't test for zero count because
- # cameras like the 1DmkIII use this value)
- next IFD_TRY if $count & 0xff000000;
- # extra tests to avoid mis-identifying Samsung makernotes (GT-I9000, etc)
- next unless $num == 1;
- my $valueSize = $count * $Image::ExifTool::Exif::formatSize[$format];
- if ($valueSize > 4) {
- next IFD_TRY if $valueSize > $size;
- my $valuePtr = Get32u($dataPt, $entry+8);
- next IFD_TRY if $valuePtr > 0x10000;
- }
- }
- $$dirInfo{DirStart} += $offset; # update directory start
- $$dirInfo{DirLen} -= $offset;
- return $offset; # success!!
- }
- }
- return undef;
- }
- #------------------------------------------------------------------------------
- # Fix base offset for Leica maker notes
- # Inputs: 0) ExifTool object ref, 1) dirInfo ref, 2) tag table ref
- # Returns: 1 on success, and updates $dirInfo if necessary for new directory
- sub FixLeicaBase($$;$)
- {
- my ($et, $dirInfo, $tagTablePtr) = @_;
- my $dataPt = $$dirInfo{DataPt};
- my $dirStart = $$dirInfo{DirStart} || 0;
- # get hash of value block positions
- my ($valBlock, $valBlkAdj) = GetValueBlocks($dataPt, $dirStart);
- if (%$valBlock) {
- # get sorted list of value offsets
- my @valPtrs = sort { $a <=> $b } keys %$valBlock;
- my $numEntries = Get16u($dataPt, $dirStart);
- my $diff = $valPtrs[0] - ($numEntries * 12 + 4);
- if ($diff > 8) {
- $$dirInfo{Base} -= 8;
- $$dirInfo{DataPos} += 8;
- }
- }
- my $success = 1;
- if ($tagTablePtr) {
- $success = Image::ExifTool::Exif::ProcessExif($et, $dirInfo, $tagTablePtr);
- }
- return $success;
- }
- #------------------------------------------------------------------------------
- # Process Canon maker notes
- # Inputs: 0) ExifTool object ref, 1) dirInfo ref, 2) tag table ref
- # Returns: 1 on success
- sub ProcessCanon($$$)
- {
- my ($et, $dirInfo, $tagTablePtr) = @_;
- # identify Canon MakerNote footer in HtmlDump
- # (this code moved from FixBase so it also works for Adobe MakN in DNG images)
- if ($$et{HTML_DUMP} and $$dirInfo{DirLen} > 8) {
- my $dataPos = $$dirInfo{DataPos};
- my $dirStart = $$dirInfo{DirStart} || 0;
- my $footerPos = $dirStart + $$dirInfo{DirLen} - 8;
- my $footer = substr(${$$dirInfo{DataPt}}, $footerPos, 8);
- if ($footer =~ /^(II\x2a\0|MM\0\x2a)/ and substr($footer,0,2) eq GetByteOrder()) {
- my $oldOffset = Get32u(\$footer, 4);
- my $newOffset = $dirStart + $dataPos;
- my $str = sprintf('Original maker note offset: 0x%.4x', $oldOffset);
- if ($oldOffset != $newOffset) {
- $str .= sprintf("\nCurrent maker note offset: 0x%.4x", $newOffset);
- }
- my $filePos = ($$dirInfo{Base} || 0) + $dataPos + $footerPos;
- $et->HDump($filePos, 8, '[Canon MakerNotes footer]', $str);
- }
- }
- # process as normal
- return Image::ExifTool::Exif::ProcessExif($et, $dirInfo, $tagTablePtr);
- }
- #------------------------------------------------------------------------------
- # Process GE type 2 maker notes
- # Inputs: 0) ExifTool object ref, 1) DirInfo ref, 2) tag table ref
- # Returns: 1 on success
- sub ProcessGE2($$$)
- {
- my ($et, $dirInfo, $tagTablePtr) = @_;
- my $dataPt = $$dirInfo{DataPt} or return 0;
- my $dirStart = $$dirInfo{DirStart} || 0;
- # these maker notes are missing the IFD entry count, but they
- # always have 25 entries, so write the entry count manually
- Set16u(25, $dataPt, $dirStart);
- return Image::ExifTool::Exif::ProcessExif($et, $dirInfo, $tagTablePtr);
- }
- #------------------------------------------------------------------------------
- # Process broken Kodak type 8b maker notes
- # Inputs: 0) ExifTool object ref, 1) DirInfo ref, 2) tag table ref
- # Returns: 1 on success
- sub ProcessKodakPatch($$$)
- {
- my ($et, $dirInfo, $tagTablePtr) = @_;
- my $dataPt = $$dirInfo{DataPt} or return 0;
- my $dirStart = $$dirInfo{DirStart} || 0;
- # these maker notes have 2 extra bytes after the entry count, so fix this
- return 0 unless $$dirInfo{DirLen} > 2;
- Set16u(Get16u($dataPt,$dirStart), $dataPt, $dirStart+2);
- $$dirInfo{DirStart} += 2;
- return Image::ExifTool::Exif::ProcessExif($et, $dirInfo, $tagTablePtr);
- }
- #------------------------------------------------------------------------------
- # Process unknown maker notes or PreviewImage
- # Inputs: 0) ExifTool object ref, 1) dirInfo ref, 2) tag table ref
- # Returns: 1 on success, and updates $dirInfo if necessary for new directory
- sub ProcessUnknownOrPreview($$$)
- {
- my ($et, $dirInfo, $tagTablePtr) = @_;
- my $dataPt = $$dirInfo{DataPt};
- my $dirStart = $$dirInfo{DirStart};
- my $dirLen = $$dirInfo{DirLen};
- # check to see if this is a preview image
- if ($dirLen > 6 and substr($$dataPt, $dirStart, 3) eq "\xff\xd8\xff") {
- $et->VerboseDir('PreviewImage');
- if ($$et{HTML_DUMP}) {
- my $pos = $$dirInfo{DataPos} + $$dirInfo{Base} + $dirStart;
- $et->HDump($pos, $dirLen, '(MakerNotes:PreviewImage data)', "Size: $dirLen bytes")
- }
- $et->FoundTag('PreviewImage', substr($$dataPt, $dirStart, $dirLen));
- return 1;
- }
- return ProcessUnknown($et, $dirInfo, $tagTablePtr);
- }
- #------------------------------------------------------------------------------
- # Write unknown maker notes or PreviewImage
- # Inputs: 0) ExifTool object ref, 1) dirInfo ref, 2) tag table ref
- # Returns: directory data, '' to delete, or undef on error
- sub WriteUnknownOrPreview($$$)
- {
- my ($et, $dirInfo, $tagTablePtr) = @_;
- my $dataPt = $$dirInfo{DataPt};
- my $dirStart = $$dirInfo{DirStart};
- my $dirLen = $$dirInfo{DirLen};
- my $newVal;
- # check to see if this is a preview image
- if ($dirLen > 6 and substr($$dataPt, $dirStart, 3) eq "\xff\xd8\xff") {
- if ($$et{NEW_VALUE}{$Image::ExifTool::Extra{PreviewImage}}) {
- # write or delete new preview (if deleted, it can't currently be added back again)
- $newVal = $et->GetNewValue('PreviewImage') || '';
- if ($et->Options('Verbose') > 1) {
- $et->VerboseValue("- MakerNotes:PreviewImage", substr($$dataPt, $dirStart, $dirLen));
- $et->VerboseValue("+ MakerNotes:PreviewImage", $newVal) if $newVal;
- }
- ++$$et{CHANGED};
- } else {
- $newVal = substr($$dataPt, $dirStart, $dirLen);
- }
- } else {
- # rewrite MakerNote IFD
- $newVal = Image::ExifTool::Exif::WriteExif($et, $dirInfo, $tagTablePtr);
- }
- return $newVal;
- }
- #------------------------------------------------------------------------------
- # Process unknown maker notes assuming it is in EXIF IFD format
- # Inputs: 0) ExifTool object ref, 1) dirInfo ref, 2) tag table ref
- # Returns: 1 on success, and updates $dirInfo if necessary for new directory
- sub ProcessUnknown($$$)
- {
- my ($et, $dirInfo, $tagTablePtr) = @_;
- my $success = 0;
- my $loc = LocateIFD($et, $dirInfo);
- if (defined $loc) {
- $$et{UnknownByteOrder} = GetByteOrder();
- if ($et->Options('Verbose') > 1) {
- my $out = $et->Options('TextOut');
- my $indent = $$et{INDENT};
- $indent =~ s/\| $/ /;
- printf $out "${indent}Found IFD at offset 0x%.4x in maker notes:\n",
- $$dirInfo{DirStart} + $$dirInfo{DataPos} + $$dirInfo{Base};
- }
- $success = Image::ExifTool::Exif::ProcessExif($et, $dirInfo, $tagTablePtr);
- } else {
- $$et{UnknownByteOrder} = ''; # indicates we tried but didn't set byte order
- $et->Warn("Unrecognized $$dirInfo{DirName}", 1);
- }
- return $success;
- }
- 1; # end
- __END__
- =head1 NAME
- Image::ExifTool::MakerNotes - Read and write EXIF maker notes
- =head1 SYNOPSIS
- This module is required by Image::ExifTool.
- =head1 DESCRIPTION
- This module contains definitions required by Image::ExifTool to interpret
- maker notes in EXIF information.
- =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 SEE ALSO
- L<Image::ExifTool::TagNames(3pm)|Image::ExifTool::TagNames>,
- L<Image::ExifTool(3pm)|Image::ExifTool>
- =cut
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