#------------------------------------------------------------------------------
# File: PhaseOne.pm
#
# Description: Phase One maker notes tags
#
# Revisions: 2013-02-17 - P. Harvey Created
#
# References: 1) http://www.cybercom.net/~dcoffin/dcraw/
#------------------------------------------------------------------------------
package Image::ExifTool::PhaseOne;
use strict;
use vars qw($VERSION);
use Image::ExifTool qw(:DataAccess :Utils);
use Image::ExifTool::Exif;
$VERSION = '1.03';
sub WritePhaseOne($$$);
sub ProcessPhaseOne($$$);
# default formats based on PhaseOne format size
my @formatName = ( undef, 'string', 'int16s', undef, 'int32s' );
# Phase One maker notes (ref PH)
%Image::ExifTool::PhaseOne::Main = (
PROCESS_PROC => \&ProcessPhaseOne,
WRITE_PROC => \&WritePhaseOne,
CHECK_PROC => \&Image::ExifTool::Exif::CheckExif,
WRITABLE => '1',
FORMAT => 'int32s',
GROUPS => { 0 => 'MakerNotes', 2 => 'Camera' },
VARS => { ENTRY_SIZE => 16 }, # (entries contain a format field)
NOTES => 'These tags are extracted from the maker notes of Phase One images.',
0x0100 => { #1
Name => 'CameraOrientation',
ValueConv => '$val & 0x03', # ignore other bits for now
PrintConv => {
0 => 'Horizontal (normal)',
1 => 'Rotate 90 CW',
2 => 'Rotate 270 CW',
3 => 'Rotate 180',
},
},
# 0x0101 - int32u: 96,160,192,256,544 (same as 0x0213)
0x0102 => { Name => 'SerialNumber', Format => 'string' },
# 0x0103 - int32u: 19,20,59769034
# 0x0104 - int32u: 50,200
0x0105 => 'ISO',
0x0106 => {
Name => 'ColorMatrix1',
Format => 'float',
Count => 9,
PrintConv => q{
my @a = map { sprintf('%.3f', $_) } split ' ', $val;
return "@a";
},
PrintConvInv => '$val',
},
0x0107 => { Name => 'WB_RGBLevels', Format => 'float', Count => 3 },
0x0108 => 'SensorWidth',
0x0109 => 'SensorHeight',
0x010a => 'SensorLeftMargin', #1
0x010b => 'SensorTopMargin', #1
0x010c => 'ImageWidth',
0x010d => 'ImageHeight',
0x010e => { #1
Name => 'RawFormat',
# 1 = raw bit mask 0x5555 (>1 mask 0x1354)
# >2 = compressed
# 5 = non-linear
PrintConv => { #PH
1 => 'RAW 1', #? (encrypted)
2 => 'RAW 2', #? (encrypted)
3 => 'IIQ L',
# 4?
5 => 'IIQ S',
6 => 'IIQ Sv2',
},
},
0x010f => {
Name => 'RawData',
Format => 'undef', # (actually 2-byte integers, but don't convert)
Binary => 1,
PutFirst => 1,
Writable => 0,
},
0x0110 => { #1
Name => 'SensorCalibration',
SubDirectory => { TagTable => 'Image::ExifTool::PhaseOne::SensorCalibration' },
},
0x0112 => {
Name => 'DateTimeOriginal',
Description => 'Date/Time Original',
Format => 'int32u',
Writable => 0, # (don't write because this is an encryption key for RawFormat 1 and 2)
Priority => 0,
Shift => 'Time',
Groups => { 2 => 'Time' },
Notes => 'may be used as a key to encrypt the raw data', #1
ValueConv => 'ConvertUnixTime($val)',
ValueConvInv => 'GetUnixTime($val)',
PrintConv => '$self->ConvertDateTime($val)',
PrintConvInv => '$self->InverseDateTime($val)',
},
0x0113 => 'ImageNumber', # (NC)
0x0203 => { Name => 'Software', Format => 'string' },
0x0204 => { Name => 'System', Format => 'string' },
# 0x020b - int32u: 0,1
# 0x020c - int32u: 1,2
# 0x020e - int32u: 1,3
0x0210 => { # (NC) (used in linearization formula - ref 1)
Name => 'SensorTemperature',
Format => 'float',
PrintConv => 'sprintf("%.2f C",$val)',
PrintConvInv => '$val=~s/ ?C//; $val',
},
0x0211 => { # (NC)
Name => 'SensorTemperature2',
Format => 'float',
PrintConv => 'sprintf("%.2f C",$val)',
PrintConvInv => '$val=~s/ ?C//; $val',
},
0x0212 => {
Name => 'UnknownDate',
Format => 'int32u',
Groups => { 2 => 'Time' },
# (this time is within about 10 minutes before or after 0x0112)
Unknown => 1,
Shift => 'Time',
ValueConv => 'ConvertUnixTime($val)',
ValueConvInv => 'GetUnixTime($val)',
PrintConv => '$self->ConvertDateTime($val)',
PrintConvInv => '$self->InverseDateTime($val)',
},
# 0x0213 - int32u: 96,160,192,256,544 (same as 0x0101)
# 0x0215 - int32u: 4,5
# 0x021a - used by dcraw
0x021c => { Name => 'StripOffsets', Binary => 1, Writable => 0 },
0x021d => 'BlackLevel', #1
# 0x021e - int32u: 1
# 0x0220 - int32u: 32
# 0x0221 - float: 0-271
0x0222 => 'SplitColumn', #1
0x0223 => { Name => 'BlackLevelData', Format => 'int16u', Count => -1, Binary => 1 }, #1
# 0x0224 - int32u: 1688,2748,3372
0x0225 => {
Name => 'PhaseOne_0x0225',
Format => 'int16s',
Count => -1,
Flags => ['Unknown','Hidden'],
PrintConv => 'length($val) > 60 ? substr($val,0,55) . "[...]" : $val',
},
0x0226 => {
Name => 'ColorMatrix2',
Format => 'float',
Count => 9,
PrintConv => q{
my @a = map { sprintf('%.3f', $_) } split ' ', $val;
return "@a";
},
PrintConvInv => '$val',
},
# 0x0227 - int32u: 0,1
# 0x0228 - int32u: 1,2
# 0x0229 - int32s: -2,0
0x022b => { #PH
Name => 'PhaseOne_0x022b',
Format => 'float',
Flags => ['Unknown','Hidden'],
},
# 0x0242 - int32u: 55
# 0x0244 - int32u: 102
# 0x0245 - float: 1.2
0x0258 => { #PH
Name => 'PhaseOne_0x0258',
Format => 'int16s',
Flags => ['Unknown','Hidden'],
PrintConv => 'length($val) > 60 ? substr($val,0,55) . "[...]" : $val',
},
0x025a => { #PH
Name => 'PhaseOne_0x025a',
Format => 'int16s',
Flags => ['Unknown','Hidden'],
PrintConv => 'length($val) > 60 ? substr($val,0,55) . "[...]" : $val',
},
# 0x0300 - int32u: 100,101,102
0x0301 => { Name => 'FirmwareVersions', Format => 'string' },
# 0x0304 - int32u: 8,3073,3076
0x0400 => {
Name => 'ShutterSpeedValue',
Format => 'float',
ValueConv => 'abs($val)<100 ? 2**(-$val) : 0',
ValueConvInv => '$val>0 ? -log($val)/log(2) : -100',
PrintConv => 'Image::ExifTool::Exif::PrintExposureTime($val)',
PrintConvInv => 'Image::ExifTool::Exif::ConvertFraction($val)',
},
0x0401 => {
Name => 'ApertureValue',
Format => 'float',
ValueConv => '2 ** ($val / 2)',
ValueConvInv => '$val>0 ? 2*log($val)/log(2) : 0',
PrintConv => 'sprintf("%.1f",$val)',
PrintConvInv => '$val',
},
0x0402 => {
Name => 'ExposureCompensation',
Format => 'float',
PrintConv => 'sprintf("%.3f",$val)',
PrintConvInv => '$val',
},
0x0403 => {
Name => 'FocalLength',
Format => 'float',
PrintConv => 'sprintf("%.1f mm",$val)',
PrintConvInv => '$val=~s/\s*mm$//;$val',
},
# 0x0404 - int32u: 0,3
# 0x0405 - int32u? (big numbers)
# 0x0406 - int32u: 1
# 0x0407 - float: -0.333 (exposure compensation again?)
# 0x0408-0x0409 - int32u: 1
0x0410 => { Name => 'CameraModel', Format => 'string' },
# 0x0411 - int32u: 33556736
0x0412 => { Name => 'LensModel', Format => 'string' },
0x0414 => {
Name => 'MaxApertureValue',
Format => 'float',
ValueConv => '2 ** ($val / 2)',
ValueConvInv => '$val>0 ? 2*log($val)/log(2) : 0',
PrintConv => 'sprintf("%.1f",$val)',
PrintConvInv => '$val',
},
0x0415 => {
Name => 'MinApertureValue',
Format => 'float',
ValueConv => '2 ** ($val / 2)',
ValueConvInv => '$val>0 ? 2*log($val)/log(2) : 0',
PrintConv => 'sprintf("%.1f",$val)',
PrintConvInv => '$val',
},
# 0x0416 - float: (min focal length? ref LR, Credo50) (but looks more like an int32u date for the 645DF - PH)
# 0x0417 - float: 80 (max focal length? ref LR)
);
# Phase One metadata (ref 1)
%Image::ExifTool::PhaseOne::SensorCalibration = (
PROCESS_PROC => \&ProcessPhaseOne,
WRITE_PROC => \&WritePhaseOne,
CHECK_PROC => \&Image::ExifTool::Exif::CheckExif,
GROUPS => { 0 => 'MakerNotes', 2 => 'Camera' },
TAG_PREFIX => 'SensorCalibration',
VARS => { ENTRY_SIZE => 12 }, # (entries do not contain a format field)
0x0400 => {
Name => 'SensorDefects',
# list of defects. each defect is 4 x int16u values:
# 0=column, 1=row, 2=type (129=bad pixel, 131=bad column), 3=?
# (but it isn't really worth the time decoding this -- it can be a few hundred kB)
Format => 'undef',
Binary => 1,
},
0x0401 => {
Name => 'AllColorFlatField1',
Format => 'undef',
Flags => ['Unknown','Binary'],
},
0x0404 => { #PH
Name => 'SensorCalibration_0x0404',
Format => 'string',
Flags => ['Unknown','Hidden'],
},
0x0405 => { #PH
Name => 'SensorCalibration_0x0405',
Format => 'string',
Flags => ['Unknown','Hidden'],
},
0x0406 => { #PH
Name => 'SensorCalibration_0x0406',
Format => 'string',
Flags => ['Unknown','Hidden'],
},
0x0407 => { #PH
Name => 'SerialNumber',
Format => 'string',
Writable => 1,
},
0x0408 => { #PH
Name => 'SensorCalibration_0x0408',
Format => 'float',
Flags => ['Unknown','Hidden'],
},
0x040b => {
Name => 'RedBlueFlatField',
Format => 'undef',
Flags => ['Unknown','Binary'],
},
0x040f => { #PH
Name => 'SensorCalibration_0x040f',
Format => 'undef',
Flags => ['Unknown','Hidden'],
},
0x0410 => {
Name => 'AllColorFlatField2',
Format => 'undef',
Flags => ['Unknown','Binary'],
},
# 0x0412 - used by dcraw
0x0413 => { #PH
Name => 'SensorCalibration_0x0413',
Format => 'double',
Flags => ['Unknown','Hidden'],
},
0x0414 => { #PH
Name => 'SensorCalibration_0x0414',
Format => 'undef',
Flags => ['Unknown','Hidden'],
},
0x0416 => {
Name => 'AllColorFlatField3',
Format => 'undef',
Flags => ['Unknown','Binary'],
},
0x0418 => { #PH
Name => 'SensorCalibration_0x0418',
Format => 'undef',
Flags => ['Unknown','Hidden'],
},
0x0419 => {
Name => 'LinearizationCoefficients1',
Format => 'float',
PrintConv => 'my @a=split " ",$val;join " ", map { sprintf("%.5g",$_) } @a',
},
0x041a => {
Name => 'LinearizationCoefficients2',
Format => 'float',
PrintConv => 'my @a=split " ",$val;join " ", map { sprintf("%.5g",$_) } @a',
},
0x041c => { #PH
Name => 'SensorCalibration_0x041c',
Format => 'float',
Flags => ['Unknown','Hidden'],
},
0x041e => { #PH
Name => 'SensorCalibration_0x041e',
Format => 'undef',
Flags => ['Unknown','Hidden'],
ValueConv => q{
my $order = GetByteOrder();
if (length $val >= 8 and SetByteOrder(substr($val,0,2))) {
$val = ReadValue(\$val, 4, 'float', undef, length($val)-4);
SetByteOrder($order);
}
return $val;
},
},
);
#------------------------------------------------------------------------------
# Do HTML dump of an IFD entry
# Inputs: 0) ExifTool ref, 1) tag table ref, 3) tag ID, 4) tag value,
# 5) IFD entry offset, 6) IFD entry size, 7) parameter hash
sub HtmlDump($$$$$$%)
{
my ($et, $tagTablePtr, $tagID, $value, $entry, $entryLen, %parms) = @_;
my ($dirName, $index, $formatStr, $dataPos, $base, $size, $valuePtr) =
@parms{qw(DirName Index Format DataPos Base Size Start)};
my $tagInfo = $et->GetTagInfo($tagTablePtr, $tagID);
my ($tagName, $colName, $subdir);
my $count = $parms{Count} || $size;
$base = 0 unless defined $base;
if ($tagInfo) {
$tagName = $$tagInfo{Name};
$subdir = $$tagInfo{SubDirectory};
if ($$tagInfo{Format}) {
$formatStr = $$tagInfo{Format};
$count = $size / Image::ExifTool::FormatSize($formatStr);
}
} else {
$tagName = sprintf("Tag 0x%.4x", $tagID);
}
my $dname = sprintf("${dirName}-%.2d", $index);
# build our tool tip
my $fstr = "$formatStr\[$count]";
my $tip = sprintf("Tag ID: 0x%.4x\n", $tagID) .
"Format: $fstr\nSize: $size bytes\n";
if ($size > 4) {
$tip .= sprintf("Value offset: 0x%.4x\n", $valuePtr - $base);
$tip .= sprintf("Actual offset: 0x%.4x\n", $valuePtr + $dataPos);
$tip .= sprintf("Offset base: 0x%.4x\n", $dataPos + $base);
$colName = "<span class=F>$tagName</span>";
} else {
$colName = $tagName;
}
unless (ref $value) {
my $tval = length($value) > 32 ? substr($value,0,28) . '[...]' : $value;
$tval =~ tr/\x00-\x1f\x7f-\xff/./;
$tip .= "Value: $tval";
}
$et->HDump($entry+$dataPos, $entryLen, "$dname $colName", $tip, 1);
if ($size > 4) {
my $dumpPos = $valuePtr + $dataPos;
# add value data block
$et->HDump($dumpPos,$size,"$tagName value",'SAME', $subdir ? 0x04 : 0);
}
}
#------------------------------------------------------------------------------
# Write PhaseOne maker notes (both types of PhaseOne IFD)
# Inputs: 0) ExifTool object ref, 1) source dirInfo ref, 2) tag table ref
# Returns: data block or undef on error
sub WritePhaseOne($$$)
{
my ($et, $dirInfo, $tagTablePtr) = @_;
$et or return 1; # allow dummy access to autoload this package
# nothing to do if we aren't changing any PhaseOne tags
my $newTags = $et->GetNewTagInfoHash($tagTablePtr);
return undef unless %$newTags;
my $dataPt = $$dirInfo{DataPt};
my $dataPos = $$dirInfo{DataPos} || 0;
my $dirStart = $$dirInfo{DirStart} || 0;
my $dirLen = $$dirInfo{DirLen} || $$dirInfo{DataLen} - $dirStart;
my $dirName = $$dirInfo{DirName};
my $verbose = $et->Options('Verbose');
return undef if $dirLen < 12;
unless ($$tagTablePtr{VARS} and $$tagTablePtr{VARS}{ENTRY_SIZE}) {
$et->WarnOnce("No ENTRY_SIZE for $$tagTablePtr{TABLE_NAME}");
return undef;
}
my $entrySize = $$tagTablePtr{VARS}{ENTRY_SIZE};
my $ifdType = $$tagTablePtr{TAG_PREFIX} || 'PhaseOne';
my $hdr = substr($$dataPt, $dirStart, 12);
if ($entrySize == 16) {
return undef unless $hdr =~ /^(IIII.waR|MMMMRaw.)/s;
} elsif ($hdr !~ /^(IIII\x01\0\0\0|MMMM\0\0\0\x01)/s) {
$et->Warn("Unrecognized $ifdType directory version");
return undef;
}
SetByteOrder(substr($hdr, 0, 2));
# get offset to start of PhaseOne directory
my $ifdStart = Get32u(\$hdr, 8);
return undef if $ifdStart + 8 > $dirLen;
# initialize output directory buffer with (fixed) number of entries plus 4-byte padding
my $dirBuff = substr($$dataPt, $dirStart + $ifdStart, 8);
# get number of entries in PhaseOne directory
my $numEntries = Get32u(\$dirBuff, 0);
my $ifdEnd = $ifdStart + 8 + $entrySize * $numEntries;
return undef if $numEntries < 2 or $numEntries > 300 or $ifdEnd > $dirLen;
my $hdrBuff = $hdr;
my $valBuff = ''; # buffer for value data
my $fixup = new Image::ExifTool::Fixup;
my $index;
for ($index=0; $index<$numEntries; ++$index) {
my $entry = $dirStart + $ifdStart + 8 + $entrySize * $index;
my $tagID = Get32u($dataPt, $entry);
my $size = Get32u($dataPt, $entry+$entrySize-8);
my ($formatSize, $formatStr);
if ($entrySize == 16) {
$formatSize = Get32u($dataPt, $entry+4);
$formatStr = $formatName[$formatSize];
unless ($formatStr) {
$et->Warn("Possibly invalid $ifdType IFD entry $index",1);
delete $$newTags{$tagID}; # make sure we don't try to change this one
}
} else {
# (no format code for SensorCalibration IFD entries)
$formatSize = 1;
$formatStr = 'undef';
}
my $valuePtr = $entry + $entrySize - 4;
if ($size > 4) {
if ($size > 0x7fffffff) {
$et->Error("Invalid size for $ifdType IFD entry $index",1);
return undef;
}
$valuePtr = Get32u($dataPt, $valuePtr);
if ($valuePtr + $size > $dirLen) {
$et->Error(sprintf("Invalid offset 0x%.4x for $ifdType IFD entry $index",$valuePtr),1);
return undef;
}
$valuePtr += $dirStart;
}
my $value = substr($$dataPt, $valuePtr, $size);
my $tagInfo = $$newTags{$tagID} || $et->GetTagInfo($tagTablePtr, $tagID);
if ($$newTags{$tagID}) {
$formatStr = $$tagInfo{Format} if $$tagInfo{Format};
my $count = int($size / Image::ExifTool::FormatSize($formatStr));
my $val = ReadValue(\$value, 0, $formatStr, $count, $size);
my $nvHash = $et->GetNewValueHash($tagInfo);
if ($et->IsOverwriting($nvHash, $val)) {
my $newVal = $et->GetNewValue($nvHash);
# allow count to change for string and undef types only
undef $count if $formatStr eq 'string' or $formatStr eq 'undef';
my $newValue = WriteValue($newVal, $formatStr, $count);
if (defined $newValue) {
$value = $newValue;
$size = length $newValue;
$et->VerboseValue("- $dirName:$$tagInfo{Name}", $val);
$et->VerboseValue("+ $dirName:$$tagInfo{Name}", $newVal);
++$$et{CHANGED};
}
}
} elsif ($tagInfo and $$tagInfo{SubDirectory}) {
my $subTable = GetTagTable($$tagInfo{SubDirectory}{TagTable});
my %subdirInfo = (
DirName => $$tagInfo{Name},
DataPt => \$value,
DataLen => length $value,
);
my $newValue = $et->WriteDirectory(\%subdirInfo, $subTable);
if (defined $newValue and length($newValue)) {
$value = $newValue;
$size = length $newValue;
}
}
# add the tagID, possibly format size, and size to this directory entry
$dirBuff .= substr($$dataPt, $entry, $entrySize - 8) . Set32u($size);
# pad value to an even 4-byte boundary just in case
$value .= ("\0" x (4 - ($size & 0x03))) if $size & 0x03 or not $size;
if ($size <= 4) {
# store value in place of the IFD value pointer (already padded to 4 bytes)
$dirBuff .= $value;
} elsif ($tagInfo and $$tagInfo{PutFirst}) {
# store value immediately after header
$dirBuff .= Set32u(length $hdrBuff);
$hdrBuff .= $value;
} else {
# store value at end of value buffer
$fixup->AddFixup(length $dirBuff);
$dirBuff .= Set32u(length $valBuff);
$valBuff .= $value;
}
}
# apply necessary fixup to offsets in PhaseOne directory
$$fixup{Shift} = length $hdrBuff;
$fixup->ApplyFixup(\$dirBuff);
# set pointer to PhaseOneIFD in header
Set32u(length($hdrBuff) + length($valBuff), \$hdrBuff, 8);
return $hdrBuff . $valBuff . $dirBuff;
}
#------------------------------------------------------------------------------
# Read Phase One maker notes
# Inputs: 0) ExifTool object ref, 1) dirInfo ref, 2) tag table ref
# Returns: 1 on success
# Notes: This routine processes both the main PhaseOne IFD type (with 16 bytes
# per entry), and the SensorCalibration IFD type (12 bytes per entry)
sub ProcessPhaseOne($$$)
{
my ($et, $dirInfo, $tagTablePtr) = @_;
my $dataPt = $$dirInfo{DataPt};
my $dataPos = $$dirInfo{DataPos} || 0;
my $dirStart = $$dirInfo{DirStart} || 0;
my $dirLen = $$dirInfo{DirLen} || $$dirInfo{DataLen} - $dirStart;
my $binary = $et->Options('Binary');
my $verbose = $et->Options('Verbose');
my $htmlDump = $$et{HTML_DUMP};
return 0 if $dirLen < 12;
unless ($$tagTablePtr{VARS} and $$tagTablePtr{VARS}{ENTRY_SIZE}) {
$et->WarnOnce("No ENTRY_SIZE for $$tagTablePtr{TABLE_NAME}");
return undef;
}
my $entrySize = $$tagTablePtr{VARS}{ENTRY_SIZE};
my $ifdType = $$tagTablePtr{TAG_PREFIX} || 'PhaseOne';
my $hdr = substr($$dataPt, $dirStart, 12);
if ($entrySize == 16) {
return 0 unless $hdr =~ /^(IIII.waR|MMMMRaw.)/s;
} elsif ($hdr !~ /^(IIII\x01\0\0\0|MMMM\0\0\0\x01)/s) {
$et->Warn("Unrecognized $ifdType directory version");
return 0;
}
SetByteOrder(substr($hdr, 0, 2));
# get offset to start of PhaseOne directory
my $ifdStart = Get32u(\$hdr, 8);
return 0 if $ifdStart + 8 > $dirLen;
# get number of entries in PhaseOne directory
my $numEntries = Get32u($dataPt, $dirStart + $ifdStart);
my $ifdEnd = $ifdStart + 8 + $entrySize * $numEntries;
return 0 if $numEntries < 2 or $numEntries > 300 or $ifdEnd > $dirLen;
$et->VerboseDir($ifdType, $numEntries);
if ($htmlDump) {
$et->HDump($dirStart + $dataPos, 8, "$ifdType header");
$et->HDump($dirStart + $dataPos + 8, 4, "$ifdType IFD offset");
$et->HDump($dirStart + $dataPos + $ifdStart, 4, "$ifdType entries",
"Entry count: $numEntries");
$et->HDump($dirStart + $dataPos + $ifdStart + 4, 4, '[unused]');
}
my $index;
for ($index=0; $index<$numEntries; ++$index) {
my $entry = $dirStart + $ifdStart + 8 + $entrySize * $index;
my $tagID = Get32u($dataPt, $entry);
my $size = Get32u($dataPt, $entry+$entrySize-8);
my $valuePtr = $entry + $entrySize - 4;
my ($formatSize, $formatStr, $value);
if ($entrySize == 16) {
# (format code only for the 16-byte IFD entry)
$formatSize = Get32u($dataPt, $entry+4);
$formatStr = $formatName[$formatSize];
unless ($formatStr) {
$et->WarnOnce("Unrecognized $ifdType format size $formatSize",1);
$formatSize = 1;
$formatStr = 'undef';
}
} elsif ($size %4) {
$formatSize = 1;
$formatStr = 'undef';
} else {
$formatSize = 4;
$formatStr = 'int32s';
}
if ($size > 4) {
if ($size > 0x7fffffff) {
$et->Warn("Invalid size for $ifdType IFD entry $index");
return 0;
}
$valuePtr = Get32u($dataPt, $valuePtr);
if ($valuePtr + $size > $dirLen) {
$et->Warn(sprintf("Invalid offset 0x%.4x for $ifdType IFD entry $index",$valuePtr));
return 0;
}
$valuePtr += $dirStart;
}
my $tagInfo = $et->GetTagInfo($tagTablePtr, $tagID);
if ($tagInfo) {
$formatStr = $$tagInfo{Format} if $$tagInfo{Format};
} else {
next unless $verbose or $htmlDump;
}
my $count = int($size / Image::ExifTool::FormatSize($formatStr));
if ($count > 100000 and not $binary) {
$value = \ "Binary data $size bytes";
} else {
$value = ReadValue($dataPt,$valuePtr,$formatStr,$count,$size);
# try to distinguish between the various format types
if ($formatStr eq 'int32s') {
my ($val) = split ' ', $value;
if (defined $val) {
# get floating point exponent (has bias of 127)
my $exp = ($val & 0x7f800000) >> 23;
if ($exp > 120 and $exp < 140) {
$formatStr = 'float';
$value = ReadValue($dataPt,$valuePtr,$formatStr,$count,$size);
}
}
}
}
my %parms = (
DirName => $ifdType,
Index => $index,
DataPt => $dataPt,
DataPos => $dataPos,
Size => $size,
Start => $valuePtr,
Format => $formatStr,
Count => $count
);
$htmlDump and HtmlDump($et, $tagTablePtr, $tagID, $value, $entry, $entrySize,
%parms, Base => $dirStart);
$et->HandleTag($tagTablePtr, $tagID, $value, %parms);
}
return 1;
}
1; # end
__END__
=head1 NAME
Image::ExifTool::PhaseOne - Phase One 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 decode Phase
One 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 REFERENCES
=over 4
=item L<http://www.cybercom.net/~dcoffin/dcraw/>
=back
=head1 SEE ALSO
L<Image::ExifTool::TagNames/PhaseOne Tags>,
L<Image::ExifTool(3pm)|Image::ExifTool>
=cut