264 lines
8.0 KiB
Perl
264 lines
8.0 KiB
Perl
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#------------------------------------------------------------------------------
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# File: HP.pm
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#
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# Description: Hewlett-Packard maker notes tags
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#
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# Revisions: 2007-05-03 - P. Harvey Created
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#------------------------------------------------------------------------------
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package Image::ExifTool::HP;
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use strict;
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use vars qw($VERSION);
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use Image::ExifTool qw(:DataAccess :Utils);
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$VERSION = '1.04';
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sub ProcessHP($$$);
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sub ProcessTDHD($$$);
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# HP EXIF-format maker notes (or is it Vivitar?)
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%Image::ExifTool::HP::Main = (
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GROUPS => { 0 => 'MakerNotes', 2 => 'Camera' },
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NOTES => q{
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These tables list tags found in the maker notes of some Hewlett-Packard
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camera models.
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The first table lists tags found in the EXIF-format maker notes of the
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PhotoSmart 720 (also used by the Vivitar ViviCam 3705, 3705B and 3715).
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},
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0x0e00 => {
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Name => 'PrintIM',
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Description => 'Print Image Matching',
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SubDirectory => {
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TagTable => 'Image::ExifTool::PrintIM::Main',
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},
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},
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);
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# other types of HP maker notes
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%Image::ExifTool::HP::Type2 = (
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PROCESS_PROC => \&ProcessHP,
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GROUPS => { 0 => 'MakerNotes', 2 => 'Camera' },
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NOTES => 'These tags are used by the PhotoSmart E427.',
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'PreviewImage' => {
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Name => 'PreviewImage',
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Groups => { 2 => 'Preview' },
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RawConv => '$self->ValidateImage(\$val,$tag)',
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},
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'Serial Number' => 'SerialNumber',
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'Lens Shading' => 'LensShading',
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);
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%Image::ExifTool::HP::Type4 = (
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PROCESS_PROC => \&Image::ExifTool::ProcessBinaryData,
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GROUPS => { 0 => 'MakerNotes', 2 => 'Camera' },
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NOTES => 'These tags are used by the PhotoSmart M627.',
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0x0c => {
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Name => 'MaxAperture',
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Format => 'int16u',
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ValueConv => '$val / 10',
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},
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0x10 => {
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Name => 'ExposureTime',
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Format => 'int32u',
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ValueConv => '$val / 1e6',
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PrintConv => 'Image::ExifTool::Exif::PrintExposureTime($val)',
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},
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0x14 => {
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Name => 'CameraDateTime',
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Groups => { 2 => 'Time' },
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Format => 'string[20]',
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},
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0x34 => {
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Name => 'ISO',
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Format => 'int16u',
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},
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0x5c => {
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Name => 'SerialNumber',
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Format => 'string[26]',
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RawConv => '$val =~ s/^SERIAL NUMBER:// ? $val : undef',
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},
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);
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%Image::ExifTool::HP::Type6 = (
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PROCESS_PROC => \&Image::ExifTool::ProcessBinaryData,
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GROUPS => { 0 => 'MakerNotes', 2 => 'Camera' },
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NOTES => 'These tags are used by the PhotoSmart M425, M525 and M527.',
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0x0c => {
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Name => 'FNumber',
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Format => 'int16u',
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ValueConv => '$val / 10',
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},
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0x10 => {
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Name => 'ExposureTime',
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Format => 'int32u',
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ValueConv => '$val / 1e6',
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PrintConv => 'Image::ExifTool::Exif::PrintExposureTime($val)',
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},
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0x14 => {
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Name => 'CameraDateTime',
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Groups => { 2 => 'Time' },
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Format => 'string[20]',
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},
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0x34 => {
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Name => 'ISO',
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Format => 'int16u',
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},
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0x58 => {
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Name => 'SerialNumber',
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Format => 'string[26]',
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RawConv => '$val =~ s/^SERIAL NUMBER:// ? $val : undef',
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},
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);
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# proprietary format TDHD data written by Photosmart R837 (ref PH)
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%Image::ExifTool::HP::TDHD = (
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PROCESS_PROC => \&ProcessTDHD,
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GROUPS => { 0 => 'MakerNotes', 2 => 'Camera' },
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NOTES => q{
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These tags are extracted from the APP6 "TDHD" segment of Photosmart R837
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JPEG images. Many other unknown tags exist in is data, and can be seen with
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the Unknown (-u) option.
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},
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# (all subdirectories except TDHD and LSLV are automatically recognized
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# by their "type" word of 0x10001)
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TDHD => {
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Name => 'TDHD',
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SubDirectory => { TagTable => 'Image::ExifTool::HP::TDHD' },
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},
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LSLV => {
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Name => 'LSLV',
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SubDirectory => { TagTable => 'Image::ExifTool::HP::TDHD' },
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},
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FWRV => 'FirmwareVersion',
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CMSN => 'SerialNumber', # (unverified)
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# LTEM - some temperature?
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);
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#------------------------------------------------------------------------------
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# Process HP APP6 TDHD metadata (ref PH)
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# Inputs: 0) ExifTool object ref, 1) dirInfo ref, 2) tag table ref
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# Returns: 1 on success
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sub ProcessTDHD($$$)
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{
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my ($et, $dirInfo, $tagTablePtr) = @_;
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my $dataPt = $$dirInfo{DataPt};
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my $dataPos = $$dirInfo{DataPos};
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my $pos = $$dirInfo{DirStart};
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my $dirEnd = $pos + $$dirInfo{DirLen};
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my $unknown = $et->Options('Unknown') || $et->Options('Verbose');
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$et->VerboseDir('TDHD', undef, $$dirInfo{DirLen});
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SetByteOrder('II');
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while ($pos + 12 < $dirEnd) {
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my $tag = substr($$dataPt, $pos, 4);
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my $type = Get32u($dataPt, $pos + 4);
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my $size = Get32u($dataPt, $pos + 8);
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$pos += 12;
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last if $size < 0 or $pos + $size > $dirEnd;
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if ($type == 0x10001) {
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# this is a subdirectory containing more tags
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my %dirInfo = (
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DataPt => $dataPt,
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DataPos => $dataPos,
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DirStart => $pos,
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DirLen => $size,
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);
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$et->ProcessDirectory(\%dirInfo, $tagTablePtr);
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} else {
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if (not $$tagTablePtr{$tag} and $unknown) {
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my $name = $tag;
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$name =~ tr/-_A-Za-z0-9//dc; # remove invalid characters
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my %tagInfo = (
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Name => "HP_TDHD_$name",
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Unknown => 1,
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);
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# guess format based on data size
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if ($size == 1) {
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$tagInfo{Format} = 'int8u';
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} elsif ($size == 2) {
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$tagInfo{Format} = 'int16u';
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} elsif ($size == 4) {
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$tagInfo{Format} = 'int32s';
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} elsif ($size > 80) {
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$tagInfo{Binary} = 1;
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}
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AddTagToTable($tagTablePtr, $tag, \%tagInfo);
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}
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$et->HandleTag($tagTablePtr, $tag, undef,
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DataPt => $dataPt,
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DataPos => $dataPos,
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Start => $pos,
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Size => $size,
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);
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}
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$pos += $size;
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}
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return 1;
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}
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#------------------------------------------------------------------------------
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# Process HP maker notes
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# Inputs: 0) ExifTool object ref, 1) dirInfo ref, 2) tag table ref
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# Returns: 1 on success, otherwise returns 0 and sets a Warning
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sub ProcessHP($$$)
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{
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my ($et, $dirInfo, $tagTablePtr) = @_;
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my $dataPt = $$dirInfo{DataPt};
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my $dataLen = $$dirInfo{DataLen};
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my $dirStart = $$dirInfo{DirStart} || 0;
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my $dirLen = $$dirInfo{DirLen} || $dataLen - $dirStart;
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# look for known text-type tags
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if ($dirStart or $dirLen != length($$dataPt)) {
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my $buff = substr($$dataPt, $dirStart, $dirLen);
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$dataPt = \$buff;
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}
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my $tagID;
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# brute-force scan for PreviewImage
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if ($$tagTablePtr{PreviewImage} and $$dataPt =~ /(\xff\xd8\xff\xdb.*\xff\xd9)/gs) {
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$et->HandleTag($tagTablePtr, 'PreviewImage', $1);
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# truncate preview to speed subsequent tag scans
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my $buff = substr($$dataPt, 0, pos($$dataPt)-length($1));
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$dataPt = \$buff;
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}
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# scan for other tag ID's
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foreach $tagID (sort(TagTableKeys($tagTablePtr))) {
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next if $tagID eq 'PreviewImage';
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next unless $$dataPt =~ /$tagID:\s*([\x20-\x7f]+)/i;
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$et->HandleTag($tagTablePtr, $tagID, $1);
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}
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return 1;
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}
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1; # end
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__END__
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=head1 NAME
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Image::ExifTool::HP - Hewlett-Packard maker notes tags
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=head1 SYNOPSIS
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This module is loaded automatically by Image::ExifTool when required.
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=head1 DESCRIPTION
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This module contains definitions required by Image::ExifTool to interpret
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Hewlett-Packard maker notes.
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=head1 AUTHOR
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Copyright 2003-2018, Phil Harvey (phil at owl.phy.queensu.ca)
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This library is free software; you can redistribute it and/or modify it
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under the same terms as Perl itself.
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=head1 SEE ALSO
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L<Image::ExifTool::TagNames/HP Tags>,
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L<Image::ExifTool(3pm)|Image::ExifTool>
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=cut
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