tikiwiki/packages/tiki-pkg-mediaalchemyst/phpexiftool/exiftool/lib/Image/ExifTool/HP.pm

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#------------------------------------------------------------------------------
# File: HP.pm
#
# Description: Hewlett-Packard maker notes tags
#
# Revisions: 2007-05-03 - P. Harvey Created
#------------------------------------------------------------------------------
package Image::ExifTool::HP;
use strict;
use vars qw($VERSION);
use Image::ExifTool qw(:DataAccess :Utils);
$VERSION = '1.04';
sub ProcessHP($$$);
sub ProcessTDHD($$$);
# HP EXIF-format maker notes (or is it Vivitar?)
%Image::ExifTool::HP::Main = (
GROUPS => { 0 => 'MakerNotes', 2 => 'Camera' },
NOTES => q{
These tables list tags found in the maker notes of some Hewlett-Packard
camera models.
The first table lists tags found in the EXIF-format maker notes of the
PhotoSmart 720 (also used by the Vivitar ViviCam 3705, 3705B and 3715).
},
0x0e00 => {
Name => 'PrintIM',
Description => 'Print Image Matching',
SubDirectory => {
TagTable => 'Image::ExifTool::PrintIM::Main',
},
},
);
# other types of HP maker notes
%Image::ExifTool::HP::Type2 = (
PROCESS_PROC => \&ProcessHP,
GROUPS => { 0 => 'MakerNotes', 2 => 'Camera' },
NOTES => 'These tags are used by the PhotoSmart E427.',
'PreviewImage' => {
Name => 'PreviewImage',
Groups => { 2 => 'Preview' },
RawConv => '$self->ValidateImage(\$val,$tag)',
},
'Serial Number' => 'SerialNumber',
'Lens Shading' => 'LensShading',
);
%Image::ExifTool::HP::Type4 = (
PROCESS_PROC => \&Image::ExifTool::ProcessBinaryData,
GROUPS => { 0 => 'MakerNotes', 2 => 'Camera' },
NOTES => 'These tags are used by the PhotoSmart M627.',
0x0c => {
Name => 'MaxAperture',
Format => 'int16u',
ValueConv => '$val / 10',
},
0x10 => {
Name => 'ExposureTime',
Format => 'int32u',
ValueConv => '$val / 1e6',
PrintConv => 'Image::ExifTool::Exif::PrintExposureTime($val)',
},
0x14 => {
Name => 'CameraDateTime',
Groups => { 2 => 'Time' },
Format => 'string[20]',
},
0x34 => {
Name => 'ISO',
Format => 'int16u',
},
0x5c => {
Name => 'SerialNumber',
Format => 'string[26]',
RawConv => '$val =~ s/^SERIAL NUMBER:// ? $val : undef',
},
);
%Image::ExifTool::HP::Type6 = (
PROCESS_PROC => \&Image::ExifTool::ProcessBinaryData,
GROUPS => { 0 => 'MakerNotes', 2 => 'Camera' },
NOTES => 'These tags are used by the PhotoSmart M425, M525 and M527.',
0x0c => {
Name => 'FNumber',
Format => 'int16u',
ValueConv => '$val / 10',
},
0x10 => {
Name => 'ExposureTime',
Format => 'int32u',
ValueConv => '$val / 1e6',
PrintConv => 'Image::ExifTool::Exif::PrintExposureTime($val)',
},
0x14 => {
Name => 'CameraDateTime',
Groups => { 2 => 'Time' },
Format => 'string[20]',
},
0x34 => {
Name => 'ISO',
Format => 'int16u',
},
0x58 => {
Name => 'SerialNumber',
Format => 'string[26]',
RawConv => '$val =~ s/^SERIAL NUMBER:// ? $val : undef',
},
);
# proprietary format TDHD data written by Photosmart R837 (ref PH)
%Image::ExifTool::HP::TDHD = (
PROCESS_PROC => \&ProcessTDHD,
GROUPS => { 0 => 'MakerNotes', 2 => 'Camera' },
NOTES => q{
These tags are extracted from the APP6 "TDHD" segment of Photosmart R837
JPEG images. Many other unknown tags exist in is data, and can be seen with
the Unknown (-u) option.
},
# (all subdirectories except TDHD and LSLV are automatically recognized
# by their "type" word of 0x10001)
TDHD => {
Name => 'TDHD',
SubDirectory => { TagTable => 'Image::ExifTool::HP::TDHD' },
},
LSLV => {
Name => 'LSLV',
SubDirectory => { TagTable => 'Image::ExifTool::HP::TDHD' },
},
FWRV => 'FirmwareVersion',
CMSN => 'SerialNumber', # (unverified)
# LTEM - some temperature?
);
#------------------------------------------------------------------------------
# Process HP APP6 TDHD metadata (ref PH)
# Inputs: 0) ExifTool object ref, 1) dirInfo ref, 2) tag table ref
# Returns: 1 on success
sub ProcessTDHD($$$)
{
my ($et, $dirInfo, $tagTablePtr) = @_;
my $dataPt = $$dirInfo{DataPt};
my $dataPos = $$dirInfo{DataPos};
my $pos = $$dirInfo{DirStart};
my $dirEnd = $pos + $$dirInfo{DirLen};
my $unknown = $et->Options('Unknown') || $et->Options('Verbose');
$et->VerboseDir('TDHD', undef, $$dirInfo{DirLen});
SetByteOrder('II');
while ($pos + 12 < $dirEnd) {
my $tag = substr($$dataPt, $pos, 4);
my $type = Get32u($dataPt, $pos + 4);
my $size = Get32u($dataPt, $pos + 8);
$pos += 12;
last if $size < 0 or $pos + $size > $dirEnd;
if ($type == 0x10001) {
# this is a subdirectory containing more tags
my %dirInfo = (
DataPt => $dataPt,
DataPos => $dataPos,
DirStart => $pos,
DirLen => $size,
);
$et->ProcessDirectory(\%dirInfo, $tagTablePtr);
} else {
if (not $$tagTablePtr{$tag} and $unknown) {
my $name = $tag;
$name =~ tr/-_A-Za-z0-9//dc; # remove invalid characters
my %tagInfo = (
Name => "HP_TDHD_$name",
Unknown => 1,
);
# guess format based on data size
if ($size == 1) {
$tagInfo{Format} = 'int8u';
} elsif ($size == 2) {
$tagInfo{Format} = 'int16u';
} elsif ($size == 4) {
$tagInfo{Format} = 'int32s';
} elsif ($size > 80) {
$tagInfo{Binary} = 1;
}
AddTagToTable($tagTablePtr, $tag, \%tagInfo);
}
$et->HandleTag($tagTablePtr, $tag, undef,
DataPt => $dataPt,
DataPos => $dataPos,
Start => $pos,
Size => $size,
);
}
$pos += $size;
}
return 1;
}
#------------------------------------------------------------------------------
# Process HP maker notes
# Inputs: 0) ExifTool object ref, 1) dirInfo ref, 2) tag table ref
# Returns: 1 on success, otherwise returns 0 and sets a Warning
sub ProcessHP($$$)
{
my ($et, $dirInfo, $tagTablePtr) = @_;
my $dataPt = $$dirInfo{DataPt};
my $dataLen = $$dirInfo{DataLen};
my $dirStart = $$dirInfo{DirStart} || 0;
my $dirLen = $$dirInfo{DirLen} || $dataLen - $dirStart;
# look for known text-type tags
if ($dirStart or $dirLen != length($$dataPt)) {
my $buff = substr($$dataPt, $dirStart, $dirLen);
$dataPt = \$buff;
}
my $tagID;
# brute-force scan for PreviewImage
if ($$tagTablePtr{PreviewImage} and $$dataPt =~ /(\xff\xd8\xff\xdb.*\xff\xd9)/gs) {
$et->HandleTag($tagTablePtr, 'PreviewImage', $1);
# truncate preview to speed subsequent tag scans
my $buff = substr($$dataPt, 0, pos($$dataPt)-length($1));
$dataPt = \$buff;
}
# scan for other tag ID's
foreach $tagID (sort(TagTableKeys($tagTablePtr))) {
next if $tagID eq 'PreviewImage';
next unless $$dataPt =~ /$tagID:\s*([\x20-\x7f]+)/i;
$et->HandleTag($tagTablePtr, $tagID, $1);
}
return 1;
}
1; # end
__END__
=head1 NAME
Image::ExifTool::HP - Hewlett-Packard maker notes tags
=head1 SYNOPSIS
This module is loaded automatically by Image::ExifTool when required.
=head1 DESCRIPTION
This module contains definitions required by Image::ExifTool to interpret
Hewlett-Packard maker notes.
=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/HP Tags>,
L<Image::ExifTool(3pm)|Image::ExifTool>
=cut