#------------------------------------------------------------------------------
# File: PanasonicRaw.pm
#
# Description: Read/write Panasonic/Leica RAW/RW2/RWL meta information
#
# Revisions: 2009/03/24 - P. Harvey Created
# 2009/05/12 - PH Added RWL file type (same format as RW2)
#
# References: 1) CPAN forum post by 'hardloaf' (http://www.cpanforum.com/threads/2183)
# 2) http://www.cybercom.net/~dcoffin/dcraw/
# 3) http://syscall.eu/#pana
# 4) Klaus Homeister private communication
# IB) Iliah Borg private communication (LibRaw)
# JD) Jens Duttke private communication (TZ3,FZ30,FZ50)
#------------------------------------------------------------------------------
package Image::ExifTool::PanasonicRaw;
use strict;
use vars qw($VERSION);
use Image::ExifTool qw(:DataAccess :Utils);
use Image::ExifTool::Exif;
$VERSION = '1.14';
sub ProcessJpgFromRaw($$$);
sub WriteJpgFromRaw($$$);
sub WriteDistortionInfo($$$);
sub ProcessDistortionInfo($$$);
my %jpgFromRawMap = (
IFD1 => 'IFD0',
EXIF => 'IFD0', # to write EXIF as a block
ExifIFD => 'IFD0',
GPS => 'IFD0',
SubIFD => 'IFD0',
GlobParamIFD => 'IFD0',
PrintIM => 'IFD0',
InteropIFD => 'ExifIFD',
MakerNotes => 'ExifIFD',
IFD0 => 'APP1',
MakerNotes => 'ExifIFD',
Comment => 'COM',
);
my %wbTypeInfo = (
PrintConv => \%Image::ExifTool::Exif::lightSource,
SeparateTable => 'EXIF LightSource',
);
# Tags found in Panasonic RAW/RW2/RWL images (ref PH)
%Image::ExifTool::PanasonicRaw::Main = (
GROUPS => { 0 => 'EXIF', 1 => 'IFD0', 2 => 'Image'},
WRITE_PROC => \&Image::ExifTool::Exif::WriteExif,
CHECK_PROC => \&Image::ExifTool::Exif::CheckExif,
WRITE_GROUP => 'IFD0', # default write group
NOTES => 'These tags are found in IFD0 of Panasonic/Leica RAW, RW2 and RWL images.',
0x01 => {
Name => 'PanasonicRawVersion',
Writable => 'undef',
},
0x02 => 'SensorWidth', #1/PH
0x03 => 'SensorHeight', #1/PH
0x04 => 'SensorTopBorder', #JD
0x05 => 'SensorLeftBorder', #JD
0x06 => 'SensorBottomBorder', #PH
0x07 => 'SensorRightBorder', #PH
# observed values for unknown tags - PH
# 0x08: 1
# 0x09: 1,3,4
# 0x0a: 12
# (IB gave 0x08-0x0a as BlackLevel tags, but Klaus' decoding makes more sense)
0x08 => { Name => 'SamplesPerPixel', Writable => 'int16u', Protected => 1 }, #4
0x09 => { #4
Name => 'CFAPattern',
Writable => 'int16u',
Protected => 1,
PrintConv => {
0 => 'n/a',
1 => '[Red,Green][Green,Blue]', # (CM-1, FZ70)
2 => '[Green,Red][Blue,Green]', # (LX-7)
3 => '[Green,Blue][Red,Green]', # (ZS100, FZ2500, FZ1000, ...)
4 => '[Blue,Green][Green,Red]', # (LC-100, G-7, V-LUX1, ...)
},
},
0x0a => { Name => 'BitsPerSample', Writable => 'int16u', Protected => 1 }, #4
0x0b => { #4
Name => 'Compression',
Writable => 'int16u',
Protected => 1,
PrintConv => {
34316 => 'Panasonic RAW 1', # (most models - RAW/RW2/RWL)
34826 => 'Panasonic RAW 2', # (DIGILUX 2 - RAW)
34828 => 'Panasonic RAW 3', # (D-LUX2,D-LUX3,FZ30,LX1 - RAW)
},
},
# 0x0c: 2 (only Leica Digilux 2)
# 0x0d: 0,1
# 0x0e,0x0f,0x10: 4095
0x0e => { Name => 'LinearityLimitRed', Writable => 'int16u' }, #IB
0x0f => { Name => 'LinearityLimitGreen', Writable => 'int16u' }, #IB
0x10 => { Name => 'LinearityLimitBlue', Writable => 'int16u' }, #IB
0x11 => { #JD
Name => 'RedBalance',
Writable => 'int16u',
ValueConv => '$val / 256',
ValueConvInv => 'int($val * 256 + 0.5)',
Notes => 'found in Digilux 2 RAW images',
},
0x12 => { #JD
Name => 'BlueBalance',
Writable => 'int16u',
ValueConv => '$val / 256',
ValueConvInv => 'int($val * 256 + 0.5)',
},
0x13 => { #IB
Name => 'WBInfo',
SubDirectory => { TagTable => 'Image::ExifTool::PanasonicRaw::WBInfo' },
},
0x17 => { #1
Name => 'ISO',
Writable => 'int16u',
},
# 0x18,0x19,0x1a: 0
0x18 => { #IB
Name => 'HighISOMultiplierRed',
Writable => 'int16u',
ValueConv => '$val / 256',
ValueConvInv => 'int($val * 256 + 0.5)',
},
0x19 => { #IB
Name => 'HighISOMultiplierGreen',
Writable => 'int16u',
ValueConv => '$val / 256',
ValueConvInv => 'int($val * 256 + 0.5)',
},
0x1a => { #IB
Name => 'HighISOMultiplierBlue',
Writable => 'int16u',
ValueConv => '$val / 256',
ValueConvInv => 'int($val * 256 + 0.5)',
},
# 0x1b: [binary data] (something to do with the camera ISO cababilities: int16u count N,
# followed by table of N entries: int16u ISO, int16u[3] RGB gains - ref IB)
0x1c => { Name => 'BlackLevelRed', Writable => 'int16u' }, #IB
0x1d => { Name => 'BlackLevelGreen', Writable => 'int16u' }, #IB
0x1e => { Name => 'BlackLevelBlue', Writable => 'int16u' }, #IB
0x24 => { #2
Name => 'WBRedLevel',
Writable => 'int16u',
},
0x25 => { #2
Name => 'WBGreenLevel',
Writable => 'int16u',
},
0x26 => { #2
Name => 'WBBlueLevel',
Writable => 'int16u',
},
0x27 => { #IB
Name => 'WBInfo2',
SubDirectory => { TagTable => 'Image::ExifTool::PanasonicRaw::WBInfo2' },
},
# 0x27,0x29,0x2a,0x2b,0x2c: [binary data]
0x2d => { #IB
Name => 'RawFormat',
Writable => 'int16u',
Protected => 1,
# 2 - RAW DMC-FZ8/FZ18
# 3 - RAW DMC-L10
# 4 - RW2 for most other models, including G9 normal resolution and YUNEEC CGO4
# (must add 15 to black levels for RawFormat == 4)
# 5 - RW2 DC-GH5s and G9 HiRes
# missing - DMC-LX1/FZ30/FZ50/L1/LX1/LX2
},
0x2e => { #JD
Name => 'JpgFromRaw', # (writable directory!)
Groups => { 2 => 'Preview' },
Writable => 'undef',
# protect this tag because it contains all the metadata
Flags => [ 'Binary', 'Protected', 'NestedHtmlDump', 'BlockExtract' ],
Notes => 'processed as an embedded document because it contains full EXIF',
WriteCheck => '$val eq "none" ? undef : $self->CheckImage(\$val)',
DataTag => 'JpgFromRaw',
RawConv => '$self->ValidateImage(\$val,$tag)',
SubDirectory => {
# extract information from embedded image since it is metadata-rich,
# unless HtmlDump option set (note that the offsets will be relative,
# not absolute like they should be in verbose mode)
TagTable => 'Image::ExifTool::JPEG::Main',
WriteProc => \&WriteJpgFromRaw,
ProcessProc => \&ProcessJpgFromRaw,
},
},
0x2f => { Name => 'CropTop', Writable => 'int16u' },
0x30 => { Name => 'CropLeft', Writable => 'int16u' },
0x31 => { Name => 'CropBottom', Writable => 'int16u' },
0x32 => { Name => 'CropRight', Writable => 'int16u' },
0x10f => {
Name => 'Make',
Groups => { 2 => 'Camera' },
Writable => 'string',
DataMember => 'Make',
# save this value as an ExifTool member variable
RawConv => '$self->{Make} = $val',
},
0x110 => {
Name => 'Model',
Description => 'Camera Model Name',
Groups => { 2 => 'Camera' },
Writable => 'string',
DataMember => 'Model',
# save this value as an ExifTool member variable
RawConv => '$self->{Model} = $val',
},
0x111 => {
Name => 'StripOffsets',
# (this value is 0xffffffff for some models, and RawDataOffset must be used)
Flags => [ 'IsOffset', 'PanasonicHack' ],
OffsetPair => 0x117, # point to associated byte counts
ValueConv => 'length($val) > 32 ? \$val : $val',
},
0x112 => {
Name => 'Orientation',
Writable => 'int16u',
PrintConv => \%Image::ExifTool::Exif::orientation,
Priority => 0, # so IFD1 doesn't take precedence
},
0x116 => {
Name => 'RowsPerStrip',
Priority => 0,
},
0x117 => {
Name => 'StripByteCounts',
# (note that this value may represent something like uncompressed byte count
# for RAW/RW2/RWL images from some models, and is zero for some other models)
OffsetPair => 0x111, # point to associated offset
ValueConv => 'length($val) > 32 ? \$val : $val',
},
0x118 => {
Name => 'RawDataOffset', #PH (RW2/RWL)
IsOffset => '$$et{TIFF_TYPE} =~ /^(RW2|RWL)$/', # (invalid in DNG-converted files)
PanasonicHack => 1,
OffsetPair => 0x117, # (use StripByteCounts as the offset pair)
},
0x119 => {
Name => 'DistortionInfo',
SubDirectory => { TagTable => 'Image::ExifTool::PanasonicRaw::DistortionInfo' },
},
# 0x11b - chromatic aberration correction (ref 3)
0x120 => {
Name => 'CameraIFD',
SubDirectory => {
TagTable => 'Image::ExifTool::PanasonicRaw::CameraIFD',
Base => '$start',
ProcessProc => \&Image::ExifTool::ProcessTIFF,
},
},
0x2bc => { # PH Extension!!
Name => 'ApplicationNotes', # (writable directory!)
Writable => 'int8u',
Format => 'undef',
Flags => [ 'Binary', 'Protected' ],
SubDirectory => {
DirName => 'XMP',
TagTable => 'Image::ExifTool::XMP::Main',
},
},
0x83bb => { # PH Extension!!
Name => 'IPTC-NAA', # (writable directory!)
Format => 'undef', # convert binary values as undef
Writable => 'int32u', # but write int32u format code in IFD
WriteGroup => 'IFD0',
Flags => [ 'Binary', 'Protected' ],
SubDirectory => {
DirName => 'IPTC',
TagTable => 'Image::ExifTool::IPTC::Main',
},
},
0x8769 => {
Name => 'ExifOffset',
Groups => { 1 => 'ExifIFD' },
Flags => 'SubIFD',
SubDirectory => {
TagTable => 'Image::ExifTool::Exif::Main',
DirName => 'ExifIFD',
Start => '$val',
},
},
0x8825 => {
Name => 'GPSInfo',
Groups => { 1 => 'GPS' },
Flags => 'SubIFD',
SubDirectory => {
DirName => 'GPS',
TagTable => 'Image::ExifTool::GPS::Main',
Start => '$val',
},
},
# 0xffff => 'DCSHueShiftValues', #exifprobe (NC)
);
# white balance information (ref IB)
# (PanasonicRawVersion<200: Digilux 2)
%Image::ExifTool::PanasonicRaw::WBInfo = (
PROCESS_PROC => \&Image::ExifTool::ProcessBinaryData,
WRITE_PROC => \&Image::ExifTool::WriteBinaryData,
CHECK_PROC => \&Image::ExifTool::CheckBinaryData,
WRITABLE => 1,
FORMAT => 'int16u',
FIRST_ENTRY => 0,
0 => 'NumWBEntries',
1 => { Name => 'WBType1', %wbTypeInfo },
2 => { Name => 'WB_RBLevels1', Format => 'int16u[2]' },
4 => { Name => 'WBType2', %wbTypeInfo },
5 => { Name => 'WB_RBLevels2', Format => 'int16u[2]' },
7 => { Name => 'WBType3', %wbTypeInfo },
8 => { Name => 'WB_RBLevels3', Format => 'int16u[2]' },
10 => { Name => 'WBType4', %wbTypeInfo },
11 => { Name => 'WB_RBLevels4', Format => 'int16u[2]' },
13 => { Name => 'WBType5', %wbTypeInfo },
14 => { Name => 'WB_RBLevels5', Format => 'int16u[2]' },
16 => { Name => 'WBType6', %wbTypeInfo },
17 => { Name => 'WB_RBLevels6', Format => 'int16u[2]' },
19 => { Name => 'WBType7', %wbTypeInfo },
20 => { Name => 'WB_RBLevels7', Format => 'int16u[2]' },
);
# white balance information (ref IB)
# (PanasonicRawVersion>=200: D-Lux2, D-Lux3, DMC-FZ18/FZ30/LX1/L10)
%Image::ExifTool::PanasonicRaw::WBInfo2 = (
PROCESS_PROC => \&Image::ExifTool::ProcessBinaryData,
WRITE_PROC => \&Image::ExifTool::WriteBinaryData,
CHECK_PROC => \&Image::ExifTool::CheckBinaryData,
WRITABLE => 1,
FORMAT => 'int16u',
FIRST_ENTRY => 0,
0 => 'NumWBEntries',
1 => { Name => 'WBType1', %wbTypeInfo },
2 => { Name => 'WB_RGBLevels1', Format => 'int16u[3]' },
5 => { Name => 'WBType2', %wbTypeInfo },
6 => { Name => 'WB_RGBLevels2', Format => 'int16u[3]' },
9 => { Name => 'WBType3', %wbTypeInfo },
10 => { Name => 'WB_RGBLevels3', Format => 'int16u[3]' },
13 => { Name => 'WBType4', %wbTypeInfo },
14 => { Name => 'WB_RGBLevels4', Format => 'int16u[3]' },
17 => { Name => 'WBType5', %wbTypeInfo },
18 => { Name => 'WB_RGBLevels5', Format => 'int16u[3]' },
21 => { Name => 'WBType6', %wbTypeInfo },
22 => { Name => 'WB_RGBLevels6', Format => 'int16u[3]' },
25 => { Name => 'WBType7', %wbTypeInfo },
26 => { Name => 'WB_RGBLevels7', Format => 'int16u[3]' },
);
# lens distortion information (ref 3)
# (distortion correction equation: Ru = scale*(Rd + a*Rd^3 + b*Rd^5 + c*Rd^7), ref 3)
%Image::ExifTool::PanasonicRaw::DistortionInfo = (
PROCESS_PROC => \&ProcessDistortionInfo,
WRITE_PROC => \&WriteDistortionInfo,
CHECK_PROC => \&Image::ExifTool::CheckBinaryData,
# (don't make this family 0 MakerNotes because we don't want it to be a deletable group)
GROUPS => { 0 => 'PanasonicRaw', 1 => 'PanasonicRaw', 2 => 'Image'},
WRITABLE => 1,
FORMAT => 'int16s',
FIRST_ENTRY => 0,
NOTES => 'Lens distortion correction information.',
# 0,1 - checksums
2 => {
Name => 'DistortionParam02',
ValueConv => '$val / 32768',
ValueConvInv => '$val * 32768',
},
# 3 - usually 0, but seen 0x026b when value 5 is non-zero
4 => {
Name => 'DistortionParam04',
ValueConv => '$val / 32768',
ValueConvInv => '$val * 32768',
},
5 => {
Name => 'DistortionScale',
ValueConv => '1 / (1 + $val/32768)',
ValueConvInv => '(1/$val - 1) * 32768',
},
# 6 - seen 0x0000-0x027f
7.1 => {
Name => 'DistortionCorrection',
Mask => 0x0f,
# (have seen the upper 4 bits set for GF5 and GX1, giving a value of -4095 - PH)
PrintConv => { 0 => 'Off', 1 => 'On' },
},
8 => {
Name => 'DistortionParam08',
ValueConv => '$val / 32768',
ValueConvInv => '$val * 32768',
},
9 => {
Name => 'DistortionParam09',
ValueConv => '$val / 32768',
ValueConvInv => '$val * 32768',
},
# 10 - seen 0xfc,0x0101,0x01f4,0x021d,0x0256
11 => {
Name => 'DistortionParam11',
ValueConv => '$val / 32768',
ValueConvInv => '$val * 32768',
},
12 => {
Name => 'DistortionN',
Unknown => 1,
},
# 13 - seen 0x0000,0x01f9-0x02b2
# 14,15 - checksums
);
# Panasonic RW2 camera IFD written by GH5 (ref PH)
# (doesn't seem to be valid for the GF7 or GM5 -- encrypted?)
%Image::ExifTool::PanasonicRaw::CameraIFD = (
GROUPS => { 0 => 'PanasonicRaw', 1 => 'CameraIFD', 2 => 'Camera'},
# (don't know what format codes 0x101 and 0x102 are for, so just
# map them into 4 = int32u for now)
VARS => { MAP_FORMAT => { 0x101 => 4, 0x102 => 4 } },
0x1101 => { #forum8484 (Metabones EF-M43-BT2 adapter with Canon lenses)
Name => 'FocusDistance',
Writable => 'int16u',
ValueConv => '$val / 200',
PrintConv => '$val > 65534.5/200 ? "inf" : "$val m"',
},
);
# PanasonicRaw composite tags
%Image::ExifTool::PanasonicRaw::Composite = (
ImageWidth => {
Require => {
0 => 'IFD0:SensorLeftBorder',
1 => 'IFD0:SensorRightBorder',
},
ValueConv => '$val[1] - $val[0]',
},
ImageHeight => {
Require => {
0 => 'IFD0:SensorTopBorder',
1 => 'IFD0:SensorBottomBorder',
},
ValueConv => '$val[1] - $val[0]',
},
);
# add our composite tags
Image::ExifTool::AddCompositeTags('Image::ExifTool::PanasonicRaw');
#------------------------------------------------------------------------------
# checksum algorithm for lens distortion correction information (ref 3)
# Inputs: 0) data ref, 1) start position, 2) number of bytes, 3) incement
# Returns: checksum value
sub Checksum($$$$)
{
my ($dataPt, $start, $num, $inc) = @_;
my $csum = 0;
my $i;
for ($i=0; $i<$num; ++$i) {
$csum = (73 * $csum + Get8u($dataPt, $start + $i * $inc)) % 0xffef;
}
return $csum;
}
#------------------------------------------------------------------------------
# Read lens distortion information
# Inputs: 0) ExifTool ref, 1) dirInfo ref, 2) tag table ref
# Returns: 1 on success
sub ProcessDistortionInfo($$$)
{
my ($et, $dirInfo, $tagTablePtr) = @_;
my $dataPt = $$dirInfo{DataPt};
my $start = $$dirInfo{DirStart} || 0;
my $size = $$dirInfo{DirLen} || (length($$dataPt) - $start);
if ($size == 32) {
# verify the checksums (ref 3)
my $csum1 = Checksum($dataPt, $start + 4, 12, 1);
my $csum2 = Checksum($dataPt, $start + 16, 12, 1);
my $csum3 = Checksum($dataPt, $start + 2, 14, 2);
my $csum4 = Checksum($dataPt, $start + 3, 14, 2);
my $res = $csum1 ^ Get16u($dataPt, $start + 2) ^
$csum2 ^ Get16u($dataPt, $start + 28) ^
$csum3 ^ Get16u($dataPt, $start + 0) ^
$csum4 ^ Get16u($dataPt, $start + 30);
$et->Warn('Invalid DistortionInfo checksum',1) if $res;
} else {
$et->Warn('Invalid DistortionInfo',1);
}
return $et->ProcessBinaryData($dirInfo, $tagTablePtr);
}
#------------------------------------------------------------------------------
# Write lens distortion information
# Inputs: 0) ExifTool ref, 1) dirInfo ref, 2) tag table ref
# Returns: updated distortion information or undef on error
sub WriteDistortionInfo($$$)
{
my ($et, $dirInfo, $tagTablePtr) = @_;
$et or return 1; # (allow dummy access)
my $dat = $et->WriteBinaryData($dirInfo, $tagTablePtr);
if (defined $dat and length($dat) == 32) {
# fix checksums (ref 3)
Set16u(Checksum(\$dat, 4, 12, 1), \$dat, 2);
Set16u(Checksum(\$dat, 16, 12, 1), \$dat, 28);
Set16u(Checksum(\$dat, 2, 14, 2), \$dat, 0);
Set16u(Checksum(\$dat, 3, 14, 2), \$dat, 30);
} else {
$et->Warn('Error wriing DistortionInfo',1);
}
return $dat;
}
#------------------------------------------------------------------------------
# Patch for writing non-standard Panasonic RAW/RW2/RWL raw data
# Inputs: 0) offset info ref, 1) raf ref, 2) IFD number
# Returns: error string, or undef on success
# OffsetInfo is a hash by tag ID of lists with the following elements:
# 0 - tag info ref
# 1 - pointer to int32u offset in IFD or value data
# 2 - value count
# 3 - reference to list of original offset values
# 4 - IFD format number
sub PatchRawDataOffset($$$)
{
my ($offsetInfo, $raf, $ifd) = @_;
my $stripOffsets = $$offsetInfo{0x111};
my $stripByteCounts = $$offsetInfo{0x117};
my $rawDataOffset = $$offsetInfo{0x118};
my $err;
$err = 1 unless $ifd == 0;
$err = 1 unless $stripOffsets and $stripByteCounts and $$stripOffsets[2] == 1;
if ($rawDataOffset) {
$err = 1 unless $$rawDataOffset[2] == 1;
$err = 1 unless $$stripOffsets[3][0] == 0xffffffff or $$stripByteCounts[3][0] == 0;
}
$err and return 'Unsupported Panasonic/Leica RAW variant';
if ($rawDataOffset) {
# update StripOffsets along with this tag if it contains a reasonable value
unless ($$stripOffsets[3][0] == 0xffffffff) {
# save pointer to StripOffsets value for updating later
push @$rawDataOffset, $$stripOffsets[1];
}
# handle via RawDataOffset instead of StripOffsets
$stripOffsets = $$offsetInfo{0x111} = $rawDataOffset;
delete $$offsetInfo{0x118};
}
# determine the length of the raw data
my $pos = $raf->Tell();
$raf->Seek(0, 2) or $err = 1; # seek to end of file
my $len = $raf->Tell() - $$stripOffsets[3][0];
$raf->Seek($pos, 0);
# quick check to be sure the raw data length isn't unreasonable
# (the 22-byte length is for '<Dummy raw image data>' in our tests)
$err = 1 if ($len < 1000 and $len != 22) or $len & 0x80000000;
$err and return 'Error reading Panasonic raw data';
# update StripByteCounts info with raw data length
# (note that the original value is maintained in the file)
$$stripByteCounts[3][0] = $len;
return undef;
}
#------------------------------------------------------------------------------
# Write meta information to Panasonic JpgFromRaw in RAW/RW2/RWL image
# Inputs: 0) ExifTool object ref, 1) dirInfo ref, 2) tag table ref
# Returns: updated image data, or undef if nothing changed
sub WriteJpgFromRaw($$$)
{
my ($et, $dirInfo, $tagTablePtr) = @_;
my $dataPt = $$dirInfo{DataPt};
my $byteOrder = GetByteOrder();
my $fileType = $$et{TIFF_TYPE}; # RAW, RW2 or RWL
my $dirStart = $$dirInfo{DirStart};
if ($dirStart) { # DirStart is non-zero in DNG-converted RW2/RWL
my $dirLen = $$dirInfo{DirLen} | length($$dataPt) - $dirStart;
my $buff = substr($$dataPt, $dirStart, $dirLen);
$dataPt = \$buff;
}
my $raf = new File::RandomAccess($dataPt);
my $outbuff;
my %dirInfo = (
RAF => $raf,
OutFile => \$outbuff,
);
$$et{BASE} = $$dirInfo{DataPos};
$$et{FILE_TYPE} = $$et{TIFF_TYPE} = 'JPEG';
# use a specialized map so we don't write XMP or IPTC (or other junk) into the JPEG
my $editDirs = $$et{EDIT_DIRS};
my $addDirs = $$et{ADD_DIRS};
$et->InitWriteDirs(\%jpgFromRawMap);
# don't add XMP segment (IPTC won't get added because it is in Photoshop record)
delete $$et{ADD_DIRS}{XMP};
my $result = $et->WriteJPEG(\%dirInfo);
# restore variables we changed
$$et{BASE} = 0;
$$et{FILE_TYPE} = 'TIFF';
$$et{TIFF_TYPE} = $fileType;
$$et{EDIT_DIRS} = $editDirs;
$$et{ADD_DIRS} = $addDirs;
SetByteOrder($byteOrder);
return $result > 0 ? $outbuff : $$dataPt;
}
#------------------------------------------------------------------------------
# Extract meta information from an Panasonic JpgFromRaw
# Inputs: 0) ExifTool object reference, 1) dirInfo reference
# Returns: 1 on success, 0 if this wasn't a valid JpgFromRaw image
sub ProcessJpgFromRaw($$$)
{
my ($et, $dirInfo, $tagTablePtr) = @_;
my $dataPt = $$dirInfo{DataPt};
my $byteOrder = GetByteOrder();
my $fileType = $$et{TIFF_TYPE}; # RAW, RW2 or RWL
my $tagInfo = $$dirInfo{TagInfo};
my $verbose = $et->Options('Verbose');
my ($indent, $out);
$tagInfo or $et->Warn('No tag info for Panasonic JpgFromRaw'), return 0;
my $dirStart = $$dirInfo{DirStart};
if ($dirStart) { # DirStart is non-zero in DNG-converted RW2/RWL
my $dirLen = $$dirInfo{DirLen} | length($$dataPt) - $dirStart;
my $buff = substr($$dataPt, $dirStart, $dirLen);
$dataPt = \$buff;
}
$$et{BASE} = $$dirInfo{DataPos} + ($dirStart || 0);
$$et{FILE_TYPE} = $$et{TIFF_TYPE} = 'JPEG';
$$et{DOC_NUM} = 1;
# extract information from embedded JPEG
my %dirInfo = (
Parent => 'RAF',
RAF => new File::RandomAccess($dataPt),
);
if ($verbose) {
my $indent = $$et{INDENT};
$$et{INDENT} = ' ';
$out = $et->Options('TextOut');
print $out '--- DOC1:JpgFromRaw ',('-'x56),"\n";
}
my $rtnVal = $et->ProcessJPEG(\%dirInfo);
# restore necessary variables for continued RW2/RWL processing
$$et{BASE} = 0;
$$et{FILE_TYPE} = 'TIFF';
$$et{TIFF_TYPE} = $fileType;
delete $$et{DOC_NUM};
SetByteOrder($byteOrder);
if ($verbose) {
$$et{INDENT} = $indent;
print $out ('-'x76),"\n";
}
return $rtnVal;
}
1; # end
__END__
=head1 NAME
Image::ExifTool::PanasonicRaw - Read/write Panasonic/Leica RAW/RW2/RWL meta information
=head1 SYNOPSIS
This module is loaded automatically by Image::ExifTool when required.
=head1 DESCRIPTION
This module contains definitions required by Image::ExifTool to read and
write meta information in Panasonic/Leica RAW, RW2 and RWL images.
=head1 AUTHOR
Copyright 2003-2018, 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/PanasonicRaw Tags>,
L<Image::ExifTool(3pm)|Image::ExifTool>
=cut