883 lines
30 KiB
Perl
883 lines
30 KiB
Perl
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#------------------------------------------------------------------------------
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# File: Jpeg2000.pm
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#
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# Description: Read JPEG 2000 meta information
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#
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# Revisions: 02/11/2005 - P. Harvey Created
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# 06/22/2007 - PH Added write support (EXIF, IPTC and XMP only)
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#
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# References: 1) http://www.jpeg.org/public/fcd15444-2.pdf
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# 2) ftp://ftp.remotesensing.org/jpeg2000/fcd15444-1.pdf
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#------------------------------------------------------------------------------
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package Image::ExifTool::Jpeg2000;
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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 = '1.25';
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sub ProcessJpeg2000Box($$$);
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my %resolutionUnit = (
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-3 => 'km',
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-2 => '100 m',
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-1 => '10 m',
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0 => 'm',
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1 => '10 cm',
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2 => 'cm',
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3 => 'mm',
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4 => '0.1 mm',
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5 => '0.01 mm',
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6 => 'um',
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);
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# map of where information is written in JPEG2000 image
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my %jp2Map = (
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IPTC => 'UUID-IPTC',
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IFD0 => 'UUID-EXIF',
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XMP => 'UUID-XMP',
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'UUID-IPTC' => 'JP2',
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'UUID-EXIF' => 'JP2',
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'UUID-XMP' => 'JP2',
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# jp2h => 'JP2', (not yet functional)
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# ICC_Profile => 'jp2h', (not yet functional)
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IFD1 => 'IFD0',
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EXIF => 'IFD0', # to write EXIF as a block
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ExifIFD => 'IFD0',
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GPS => 'IFD0',
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SubIFD => 'IFD0',
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GlobParamIFD => 'IFD0',
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PrintIM => 'IFD0',
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InteropIFD => 'ExifIFD',
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MakerNotes => 'ExifIFD',
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);
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# UUID's for writable UUID directories (by tag name)
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my %uuid = (
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'UUID-EXIF' => 'JpgTiffExif->JP2',
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'UUID-IPTC' => "\x33\xc7\xa4\xd2\xb8\x1d\x47\x23\xa0\xba\xf1\xa3\xe0\x97\xad\x38",
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'UUID-XMP' => "\xbe\x7a\xcf\xcb\x97\xa9\x42\xe8\x9c\x71\x99\x94\x91\xe3\xaf\xac",
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# (can't yet write GeoJP2 information)
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# 'UUID-GeoJP2' => "\xb1\x4b\xf8\xbd\x08\x3d\x4b\x43\xa5\xae\x8c\xd7\xd5\xa6\xce\x03",
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);
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# JPEG2000 codestream markers (ref ISO/IEC FCD15444-1/2)
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my %j2cMarker = (
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0x4f => 'SOC', # start of codestream
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0x51 => 'SIZ', # image and tile size
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0x52 => 'COD', # coding style default
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0x53 => 'COC', # coding style component
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0x55 => 'TLM', # tile-part lengths
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0x57 => 'PLM', # packet length, main header
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0x58 => 'PLT', # packet length, tile-part header
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0x5c => 'QCD', # quantization default
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0x5d => 'QCC', # quantization component
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0x5e => 'RGN', # region of interest
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0x5f => 'POD', # progression order default
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0x60 => 'PPM', # packed packet headers, main
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0x61 => 'PPT', # packed packet headers, tile-part
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0x63 => 'CRG', # component registration
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0x64 => 'CME', # comment and extension
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0x90 => 'SOT', # start of tile-part
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0x91 => 'SOP', # start of packet
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0x92 => 'EPH', # end of packet header
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0x93 => 'SOD', # start of data
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# extensions (ref ISO/IEC FCD15444-2)
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0x70 => 'DCO', # variable DC offset
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0x71 => 'VMS', # visual masking
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0x72 => 'DFS', # downsampling factor style
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0x73 => 'ADS', # arbitrary decomposition style
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# 0x72 => 'ATK', # arbitrary transformation kernels ?
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0x78 => 'CBD', # component bit depth
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0x74 => 'MCT', # multiple component transformation definition
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0x75 => 'MCC', # multiple component collection
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0x77 => 'MIC', # multiple component intermediate collection
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0x76 => 'NLT', # non-linearity point transformation
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);
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# JPEG 2000 "box" (ie. atom) names
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# Note: only tags with a defined "Format" are extracted
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%Image::ExifTool::Jpeg2000::Main = (
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GROUPS => { 2 => 'Image' },
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PROCESS_PROC => \&ProcessJpeg2000Box,
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WRITE_PROC => \&ProcessJpeg2000Box,
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PREFERRED => 1, # always add these tags when writing
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NOTES => q{
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The tags below are extracted from JPEG 2000 images, however ExifTool
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currently writes only EXIF, IPTC and XMP tags in these images.
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},
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'jP ' => 'JP2Signature', # (ref 1)
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"jP\x1a\x1a" => 'JP2Signature', # (ref 2)
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prfl => 'Profile',
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ftyp => {
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Name => 'FileType',
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SubDirectory => { TagTable => 'Image::ExifTool::Jpeg2000::FileType' },
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},
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rreq => 'ReaderRequirements',
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jp2h => {
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Name => 'JP2Header',
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SubDirectory => { },
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},
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# JP2Header sub boxes...
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ihdr => {
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Name => 'ImageHeader',
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SubDirectory => {
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TagTable => 'Image::ExifTool::Jpeg2000::ImageHeader',
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},
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},
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bpcc => 'BitsPerComponent',
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colr => {
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Name => 'ColorSpecification',
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SubDirectory => {
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TagTable => 'Image::ExifTool::Jpeg2000::ColorSpec',
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},
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},
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pclr => 'Palette',
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cdef => 'ComponentDefinition',
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'res '=> {
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Name => 'Resolution',
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SubDirectory => { },
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},
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# Resolution sub boxes...
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resc => {
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Name => 'CaptureResolution',
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SubDirectory => {
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TagTable => 'Image::ExifTool::Jpeg2000::CaptureResolution',
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},
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},
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resd => {
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Name => 'DisplayResolution',
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SubDirectory => {
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TagTable => 'Image::ExifTool::Jpeg2000::DisplayResolution',
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},
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},
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jpch => {
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Name => 'CodestreamHeader',
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SubDirectory => { },
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},
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# CodestreamHeader sub boxes...
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'lbl '=> {
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Name => 'Label',
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Format => 'string',
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},
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cmap => 'ComponentMapping',
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roid => 'ROIDescription',
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jplh => {
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Name => 'CompositingLayerHeader',
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SubDirectory => { },
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},
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# CompositingLayerHeader sub boxes...
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cgrp => 'ColorGroup',
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opct => 'Opacity',
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creg => 'CodestreamRegistration',
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dtbl => 'DataReference',
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ftbl => {
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Name => 'FragmentTable',
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Subdirectory => { },
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},
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# FragmentTable sub boxes...
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flst => 'FragmentList',
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cref => 'Cross-Reference',
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mdat => 'MediaData',
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comp => 'Composition',
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copt => 'CompositionOptions',
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inst => 'InstructionSet',
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asoc => 'Association',
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nlst => 'NumberList',
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bfil => 'BinaryFilter',
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drep => 'DesiredReproductions',
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# DesiredReproductions sub boxes...
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gtso => 'GraphicsTechnologyStandardOutput',
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chck => 'DigitalSignature',
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mp7b => 'MPEG7Binary',
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free => 'Free',
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jp2c => 'ContiguousCodestream',
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jp2i => {
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Name => 'IntellectualProperty',
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SubDirectory => { TagTable => 'Image::ExifTool::XMP::Main' },
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},
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'xml '=> {
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Name => 'XML',
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Writable => 'undef',
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Flags => [ 'Binary', 'Protected', 'BlockExtract' ],
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List => 1,
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Notes => q{
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by default, the XML data in this tag is parsed using the ExifTool XMP module
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to to allow individual tags to be accessed when reading, but it may also be
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extracted as a block via the "XML" tag, which is also how this tag is
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written and copied. This is a List-type tag because multiple XML blocks may
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exist
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},
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SubDirectory => { TagTable => 'Image::ExifTool::XMP::Main' },
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},
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uuid => [
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{
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Name => 'UUID-EXIF',
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# (this is the EXIF that we create)
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Condition => '$$valPt=~/^JpgTiffExif->JP2/',
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SubDirectory => {
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TagTable => 'Image::ExifTool::Exif::Main',
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ProcessProc => \&Image::ExifTool::ProcessTIFF,
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WriteProc => \&Image::ExifTool::WriteTIFF,
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DirName => 'EXIF',
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Start => '$valuePtr + 16',
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},
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},
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{
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Name => 'UUID-EXIF2',
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# written by Photoshop 7.01+Adobe JPEG2000-plugin v1.5
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Condition => '$$valPt=~/^\x05\x37\xcd\xab\x9d\x0c\x44\x31\xa7\x2a\xfa\x56\x1f\x2a\x11\x3e/',
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SubDirectory => {
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TagTable => 'Image::ExifTool::Exif::Main',
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ProcessProc => \&Image::ExifTool::ProcessTIFF,
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WriteProc => \&Image::ExifTool::WriteTIFF,
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DirName => 'EXIF',
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Start => '$valuePtr + 16',
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},
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},
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{
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Name => 'UUID-IPTC',
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# (this is the IPTC that we create)
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Condition => '$$valPt=~/^\x33\xc7\xa4\xd2\xb8\x1d\x47\x23\xa0\xba\xf1\xa3\xe0\x97\xad\x38/',
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SubDirectory => {
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TagTable => 'Image::ExifTool::IPTC::Main',
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Start => '$valuePtr + 16',
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},
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},
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{
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Name => 'UUID-IPTC2',
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# written by Photoshop 7.01+Adobe JPEG2000-plugin v1.5
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Condition => '$$valPt=~/^\x09\xa1\x4e\x97\xc0\xb4\x42\xe0\xbe\xbf\x36\xdf\x6f\x0c\xe3\x6f/',
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SubDirectory => {
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TagTable => 'Image::ExifTool::IPTC::Main',
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Start => '$valuePtr + 16',
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},
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},
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{
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Name => 'UUID-XMP',
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# ref http://www.adobe.com/products/xmp/pdfs/xmpspec.pdf
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Condition => '$$valPt=~/^\xbe\x7a\xcf\xcb\x97\xa9\x42\xe8\x9c\x71\x99\x94\x91\xe3\xaf\xac/',
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SubDirectory => {
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TagTable => 'Image::ExifTool::XMP::Main',
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Start => '$valuePtr + 16',
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},
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},
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{
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Name => 'UUID-GeoJP2',
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# ref http://www.remotesensing.org/jpeg2000/
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Condition => '$$valPt=~/^\xb1\x4b\xf8\xbd\x08\x3d\x4b\x43\xa5\xae\x8c\xd7\xd5\xa6\xce\x03/',
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SubDirectory => {
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TagTable => 'Image::ExifTool::Exif::Main',
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ProcessProc => \&Image::ExifTool::ProcessTIFF,
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Start => '$valuePtr + 16',
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},
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},
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{
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Name => 'UUID-Photoshop',
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# written by Photoshop 7.01+Adobe JPEG2000-plugin v1.5
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Condition => '$$valPt=~/^\x2c\x4c\x01\x00\x85\x04\x40\xb9\xa0\x3e\x56\x21\x48\xd6\xdf\xeb/',
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SubDirectory => {
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TagTable => 'Image::ExifTool::Photoshop::Main',
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Start => '$valuePtr + 16',
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},
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},
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{
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Name => 'UUID-Unknown',
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},
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# also written by Adobe JPEG2000 plugin v1.5:
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# 3a 0d 02 18 0a e9 41 15 b3 76 4b ca 41 ce 0e 71 - 1 byte (01)
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# 47 c9 2c cc d1 a1 45 81 b9 04 38 bb 54 67 71 3b - 1 byte (01)
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# bc 45 a7 74 dd 50 4e c6 a9 f6 f3 a1 37 f4 7e 90 - 4 bytes (00 00 00 32)
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# d7 c8 c5 ef 95 1f 43 b2 87 57 04 25 00 f5 38 e8 - 4 bytes (00 00 00 32)
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],
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uinf => {
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Name => 'UUIDInfo',
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SubDirectory => { },
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},
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# UUIDInfo sub boxes...
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ulst => 'UUIDList',
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'url '=> {
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Name => 'URL',
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Format => 'string',
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},
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);
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%Image::ExifTool::Jpeg2000::ImageHeader = (
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PROCESS_PROC => \&Image::ExifTool::ProcessBinaryData,
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GROUPS => { 2 => 'Image' },
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0 => {
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Name => 'ImageHeight',
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Format => 'int32u',
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},
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4 => {
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Name => 'ImageWidth',
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Format => 'int32u',
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},
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8 => {
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Name => 'NumberOfComponents',
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Format => 'int16u',
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},
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10 => {
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Name => 'BitsPerComponent',
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PrintConv => q{
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$val == 0xff and return 'Variable';
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my $sign = ($val & 0x80) ? 'Signed' : 'Unsigned';
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return (($val & 0x7f) + 1) . " Bits, $sign";
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},
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},
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11 => {
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Name => 'Compression',
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PrintConv => {
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0 => 'Uncompressed',
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1 => 'Modified Huffman',
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2 => 'Modified READ',
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3 => 'Modified Modified READ',
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4 => 'JBIG',
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5 => 'JPEG',
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6 => 'JPEG-LS',
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7 => 'JPEG 2000',
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8 => 'JBIG2',
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},
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},
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);
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# (ref fcd15444-1/2/6.pdf)
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# (also see http://developer.apple.com/mac/library/documentation/QuickTime/QTFF/QTFFChap1/qtff1.html)
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|
|
%Image::ExifTool::Jpeg2000::FileType = (
|
||
|
|
PROCESS_PROC => \&Image::ExifTool::ProcessBinaryData,
|
||
|
|
GROUPS => { 2 => 'Video' },
|
||
|
|
FORMAT => 'int32u',
|
||
|
|
0 => {
|
||
|
|
Name => 'MajorBrand',
|
||
|
|
Format => 'undef[4]',
|
||
|
|
PrintConv => {
|
||
|
|
'jp2 ' => 'JPEG 2000 Image (.JP2)', # image/jp2
|
||
|
|
'jpm ' => 'JPEG 2000 Compound Image (.JPM)', # image/jpm
|
||
|
|
'jpx ' => 'JPEG 2000 with extensions (.JPX)', # image/jpx
|
||
|
|
},
|
||
|
|
},
|
||
|
|
1 => {
|
||
|
|
Name => 'MinorVersion',
|
||
|
|
Format => 'undef[4]',
|
||
|
|
ValueConv => 'sprintf("%x.%x.%x", unpack("nCC", $val))',
|
||
|
|
},
|
||
|
|
2 => {
|
||
|
|
Name => 'CompatibleBrands',
|
||
|
|
Format => 'undef[$size-8]',
|
||
|
|
# ignore any entry with a null, and return others as a list
|
||
|
|
ValueConv => 'my @a=($val=~/.{4}/sg); @a=grep(!/\0/,@a); \@a',
|
||
|
|
},
|
||
|
|
);
|
||
|
|
|
||
|
|
%Image::ExifTool::Jpeg2000::CaptureResolution = (
|
||
|
|
PROCESS_PROC => \&Image::ExifTool::ProcessBinaryData,
|
||
|
|
GROUPS => { 2 => 'Image' },
|
||
|
|
FORMAT => 'int8s',
|
||
|
|
0 => {
|
||
|
|
Name => 'CaptureYResolution',
|
||
|
|
Format => 'rational32u',
|
||
|
|
},
|
||
|
|
4 => {
|
||
|
|
Name => 'CaptureXResolution',
|
||
|
|
Format => 'rational32u',
|
||
|
|
},
|
||
|
|
8 => {
|
||
|
|
Name => 'CaptureYResolutionUnit',
|
||
|
|
SeparateTable => 'ResolutionUnit',
|
||
|
|
PrintConv => \%resolutionUnit,
|
||
|
|
},
|
||
|
|
9 => {
|
||
|
|
Name => 'CaptureXResolutionUnit',
|
||
|
|
SeparateTable => 'ResolutionUnit',
|
||
|
|
PrintConv => \%resolutionUnit,
|
||
|
|
},
|
||
|
|
);
|
||
|
|
|
||
|
|
%Image::ExifTool::Jpeg2000::DisplayResolution = (
|
||
|
|
PROCESS_PROC => \&Image::ExifTool::ProcessBinaryData,
|
||
|
|
GROUPS => { 2 => 'Image' },
|
||
|
|
FORMAT => 'int8s',
|
||
|
|
0 => {
|
||
|
|
Name => 'DisplayYResolution',
|
||
|
|
Format => 'rational32u',
|
||
|
|
},
|
||
|
|
4 => {
|
||
|
|
Name => 'DisplayXResolution',
|
||
|
|
Format => 'rational32u',
|
||
|
|
},
|
||
|
|
8 => {
|
||
|
|
Name => 'DisplayYResolutionUnit',
|
||
|
|
SeparateTable => 'ResolutionUnit',
|
||
|
|
PrintConv => \%resolutionUnit,
|
||
|
|
},
|
||
|
|
9 => {
|
||
|
|
Name => 'DisplayXResolutionUnit',
|
||
|
|
SeparateTable => 'ResolutionUnit',
|
||
|
|
PrintConv => \%resolutionUnit,
|
||
|
|
},
|
||
|
|
);
|
||
|
|
|
||
|
|
%Image::ExifTool::Jpeg2000::ColorSpec = (
|
||
|
|
PROCESS_PROC => \&Image::ExifTool::ProcessBinaryData,
|
||
|
|
GROUPS => { 2 => 'Image' },
|
||
|
|
FORMAT => 'int8s',
|
||
|
|
0 => {
|
||
|
|
Name => 'ColorSpecMethod',
|
||
|
|
RawConv => '$$self{ColorSpecMethod} = $val',
|
||
|
|
PrintConv => {
|
||
|
|
1 => 'Enumerated',
|
||
|
|
2 => 'Restricted ICC',
|
||
|
|
3 => 'Any ICC',
|
||
|
|
4 => 'Vendor Color',
|
||
|
|
},
|
||
|
|
},
|
||
|
|
1 => 'ColorSpecPrecedence',
|
||
|
|
2 => {
|
||
|
|
Name => 'ColorSpecApproximation',
|
||
|
|
PrintConv => {
|
||
|
|
0 => 'Not Specified',
|
||
|
|
1 => 'Accurate',
|
||
|
|
2 => 'Exceptional Quality',
|
||
|
|
3 => 'Reasonable Quality',
|
||
|
|
4 => 'Poor Quality',
|
||
|
|
},
|
||
|
|
},
|
||
|
|
3 => [
|
||
|
|
{
|
||
|
|
Name => 'ICC_Profile',
|
||
|
|
Condition => q{
|
||
|
|
$$self{ColorSpecMethod} == 2 or
|
||
|
|
$$self{ColorSpecMethod} == 3
|
||
|
|
},
|
||
|
|
Format => 'undef[$size-3]',
|
||
|
|
SubDirectory => {
|
||
|
|
TagTable => 'Image::ExifTool::ICC_Profile::Main',
|
||
|
|
},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
Name => 'ColorSpace',
|
||
|
|
Condition => '$$self{ColorSpecMethod} == 1',
|
||
|
|
Format => 'int32u',
|
||
|
|
PrintConv => { # ref 15444-2 2002-05-15
|
||
|
|
0 => 'Bi-level',
|
||
|
|
1 => 'YCbCr(1)',
|
||
|
|
3 => 'YCbCr(2)',
|
||
|
|
4 => 'YCbCr(3)',
|
||
|
|
9 => 'PhotoYCC',
|
||
|
|
11 => 'CMY',
|
||
|
|
12 => 'CMYK',
|
||
|
|
13 => 'YCCK',
|
||
|
|
14 => 'CIELab',
|
||
|
|
15 => 'Bi-level(2)', # (incorrectly listed as 18 in 15444-2 2000-12-07)
|
||
|
|
16 => 'sRGB',
|
||
|
|
17 => 'Grayscale',
|
||
|
|
18 => 'sYCC',
|
||
|
|
19 => 'CIEJab',
|
||
|
|
20 => 'e-sRGB',
|
||
|
|
21 => 'ROMM-RGB',
|
||
|
|
# incorrect in 15444-2 2000-12-07
|
||
|
|
#22 => 'sRGB based YCbCr',
|
||
|
|
#23 => 'YPbPr(1125/60)',
|
||
|
|
#24 => 'YPbPr(1250/50)',
|
||
|
|
22 => 'YPbPr(1125/60)',
|
||
|
|
23 => 'YPbPr(1250/50)',
|
||
|
|
24 => 'e-sYCC',
|
||
|
|
},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
Name => 'ColorSpecData',
|
||
|
|
Format => 'undef[$size-3]',
|
||
|
|
Binary => 1,
|
||
|
|
},
|
||
|
|
],
|
||
|
|
);
|
||
|
|
|
||
|
|
#------------------------------------------------------------------------------
|
||
|
|
# Create new JPEG 2000 boxes when writing
|
||
|
|
# (Currently only supports adding top-level Writable JPEG2000 tags and certain UUID boxes)
|
||
|
|
# Inputs: 0) ExifTool object ref, 1) Output file or scalar ref
|
||
|
|
# Returns: 1 on success
|
||
|
|
sub CreateNewBoxes($$)
|
||
|
|
{
|
||
|
|
my ($et, $outfile) = @_;
|
||
|
|
my $addTags = $$et{AddJp2Tags};
|
||
|
|
my $addDirs = $$et{AddJp2Dirs};
|
||
|
|
delete $$et{AddJp2Tags};
|
||
|
|
delete $$et{AddJp2Dirs};
|
||
|
|
my ($tag, $dirName);
|
||
|
|
# add JPEG2000 tags
|
||
|
|
foreach $tag (sort keys %$addTags) {
|
||
|
|
my $tagInfo = $$addTags{$tag};
|
||
|
|
my $nvHash = $et->GetNewValueHash($tagInfo);
|
||
|
|
# (native JPEG2000 information is always preferred, so don't check IsCreating)
|
||
|
|
next unless $$tagInfo{List} or $et->IsOverwriting($nvHash) > 0;
|
||
|
|
next if $$nvHash{EditOnly};
|
||
|
|
my @vals = $et->GetNewValue($nvHash);
|
||
|
|
my $val;
|
||
|
|
foreach $val (@vals) {
|
||
|
|
my $boxhdr = pack('N', length($val) + 8) . $$tagInfo{TagID};
|
||
|
|
Write($outfile, $boxhdr, $val) or return 0;
|
||
|
|
++$$et{CHANGED};
|
||
|
|
$et->VerboseValue("+ Jpeg2000:$$tagInfo{Name}", $val);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
# add UUID boxes
|
||
|
|
foreach $dirName (sort keys %$addDirs) {
|
||
|
|
next unless $uuid{$dirName};
|
||
|
|
my $tagInfo;
|
||
|
|
foreach $tagInfo (@{$Image::ExifTool::Jpeg2000::Main{uuid}}) {
|
||
|
|
next unless $$tagInfo{Name} eq $dirName;
|
||
|
|
my $subdir = $$tagInfo{SubDirectory};
|
||
|
|
my $tagTable = GetTagTable($$subdir{TagTable});
|
||
|
|
my %dirInfo = (
|
||
|
|
DirName => $$subdir{DirName} || $dirName,
|
||
|
|
Parent => 'JP2',
|
||
|
|
);
|
||
|
|
# remove "UUID-" from start of directory name to allow appropriate
|
||
|
|
# directories to be written as a block
|
||
|
|
$dirInfo{DirName} =~ s/^UUID-//;
|
||
|
|
my $newdir = $et->WriteDirectory(\%dirInfo, $tagTable, $$subdir{WriteProc});
|
||
|
|
if (defined $newdir and length $newdir) {
|
||
|
|
my $boxhdr = pack('N', length($newdir) + 24) . 'uuid' . $uuid{$dirName};
|
||
|
|
Write($outfile, $boxhdr, $newdir) or return 0;
|
||
|
|
last;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
#------------------------------------------------------------------------------
|
||
|
|
# Process JPEG 2000 box
|
||
|
|
# Inputs: 0) ExifTool object reference, 1) dirInfo reference, 2) Pointer to tag table
|
||
|
|
# Returns: 1 on success when reading, or -1 on write error
|
||
|
|
# (or JP2 box or undef when writing from buffer)
|
||
|
|
sub ProcessJpeg2000Box($$$)
|
||
|
|
{
|
||
|
|
my ($et, $dirInfo, $tagTablePtr) = @_;
|
||
|
|
my $dataPt = $$dirInfo{DataPt};
|
||
|
|
my $dataLen = $$dirInfo{DataLen};
|
||
|
|
my $dataPos = $$dirInfo{DataPos};
|
||
|
|
my $dirLen = $$dirInfo{DirLen} || 0;
|
||
|
|
my $dirStart = $$dirInfo{DirStart} || 0;
|
||
|
|
my $base = $$dirInfo{Base} || 0;
|
||
|
|
my $raf = $$dirInfo{RAF};
|
||
|
|
my $outfile = $$dirInfo{OutFile};
|
||
|
|
my $dirEnd = $dirStart + $dirLen;
|
||
|
|
my ($err, $outBuff, $verbose);
|
||
|
|
|
||
|
|
if ($outfile) {
|
||
|
|
unless ($raf) {
|
||
|
|
# buffer output to be used for return value
|
||
|
|
$outBuff = '';
|
||
|
|
$outfile = \$outBuff;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
# (must not set verbose flag when writing!)
|
||
|
|
$verbose = $$et{OPTIONS}{Verbose};
|
||
|
|
$et->VerboseDir($$dirInfo{DirName}) if $verbose;
|
||
|
|
}
|
||
|
|
# loop through all contained boxes
|
||
|
|
my ($pos, $boxLen);
|
||
|
|
for ($pos=$dirStart; ; $pos+=$boxLen) {
|
||
|
|
my ($boxID, $buff, $valuePtr);
|
||
|
|
my $hdrLen = 8; # the box header length
|
||
|
|
if ($raf) {
|
||
|
|
$dataPos = $raf->Tell() - $base;
|
||
|
|
my $n = $raf->Read($buff,$hdrLen);
|
||
|
|
unless ($n == $hdrLen) {
|
||
|
|
$n and $err = '', last;
|
||
|
|
if ($outfile) {
|
||
|
|
CreateNewBoxes($et, $outfile) or $err = 1;
|
||
|
|
}
|
||
|
|
last;
|
||
|
|
}
|
||
|
|
$dataPt = \$buff;
|
||
|
|
$dirLen = $dirEnd = $hdrLen;
|
||
|
|
$pos = 0;
|
||
|
|
} elsif ($pos >= $dirEnd - $hdrLen) {
|
||
|
|
$err = '' unless $pos == $dirEnd;
|
||
|
|
last;
|
||
|
|
}
|
||
|
|
$boxLen = unpack("x$pos N",$$dataPt); # (length includes header and data)
|
||
|
|
$boxID = substr($$dataPt, $pos+4, 4);
|
||
|
|
$pos += $hdrLen; # move to end of box header
|
||
|
|
if ($boxLen == 1) {
|
||
|
|
# box header contains an additional 8-byte integer for length
|
||
|
|
$hdrLen += 8;
|
||
|
|
if ($raf) {
|
||
|
|
my $buf2;
|
||
|
|
if ($raf->Read($buf2,8) == 8) {
|
||
|
|
$buff .= $buf2;
|
||
|
|
$dirLen = $dirEnd = $hdrLen;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$pos > $dirEnd - 8 and $err = '', last;
|
||
|
|
my ($hi, $lo) = unpack("x$pos N2",$$dataPt);
|
||
|
|
$hi and $err = "Can't currently handle JPEG 2000 boxes > 4 GB", last;
|
||
|
|
$pos += 8; # move to end of extended-length box header
|
||
|
|
$boxLen = $lo - $hdrLen; # length of remaining box data
|
||
|
|
} elsif ($boxLen == 0) {
|
||
|
|
if ($raf) {
|
||
|
|
if ($outfile) {
|
||
|
|
CreateNewBoxes($et, $outfile) or $err = 1;
|
||
|
|
# copy over the rest of the file
|
||
|
|
Write($outfile, $$dataPt) or $err = 1;
|
||
|
|
while ($raf->Read($buff, 65536)) {
|
||
|
|
Write($outfile, $buff) or $err = 1;
|
||
|
|
}
|
||
|
|
} elsif ($verbose) {
|
||
|
|
my $msg = sprintf("offset 0x%.4x to end of file", $dataPos + $base + $pos);
|
||
|
|
$et->VPrint(0, "$$et{INDENT}- Tag '$boxID' ($msg)\n");
|
||
|
|
}
|
||
|
|
last; # (ignore the rest of the file when reading)
|
||
|
|
}
|
||
|
|
$boxLen = $dirEnd - $pos; # data runs to end of file
|
||
|
|
} else {
|
||
|
|
$boxLen -= $hdrLen; # length of remaining box data
|
||
|
|
}
|
||
|
|
$boxLen < 0 and $err = 'Invalid JPEG 2000 box length', last;
|
||
|
|
my $tagInfo = $et->GetTagInfo($tagTablePtr, $boxID);
|
||
|
|
unless (defined $tagInfo or $verbose) {
|
||
|
|
# no need to process this box
|
||
|
|
if ($raf) {
|
||
|
|
if ($outfile) {
|
||
|
|
Write($outfile, $$dataPt) or $err = 1;
|
||
|
|
$raf->Read($buff,$boxLen) == $boxLen or $err = '', last;
|
||
|
|
Write($outfile, $buff) or $err = 1;
|
||
|
|
} else {
|
||
|
|
$raf->Seek($boxLen, 1) or $err = 'Seek error', last;
|
||
|
|
}
|
||
|
|
} elsif ($outfile) {
|
||
|
|
Write($outfile, substr($$dataPt, $pos-$hdrLen, $boxLen+$hdrLen)) or $err = '', last;
|
||
|
|
}
|
||
|
|
next;
|
||
|
|
}
|
||
|
|
if ($raf) {
|
||
|
|
# read the box data
|
||
|
|
$dataPos = $raf->Tell() - $base;
|
||
|
|
$raf->Read($buff,$boxLen) == $boxLen or $err = '', last;
|
||
|
|
$valuePtr = 0;
|
||
|
|
$dataLen = $boxLen;
|
||
|
|
} elsif ($pos + $boxLen > $dirEnd) {
|
||
|
|
$err = '';
|
||
|
|
last;
|
||
|
|
} else {
|
||
|
|
$valuePtr = $pos;
|
||
|
|
}
|
||
|
|
if (defined $tagInfo and not $tagInfo) {
|
||
|
|
# GetTagInfo() required the value for a Condition
|
||
|
|
my $tmpVal = substr($$dataPt, $valuePtr, $boxLen < 128 ? $boxLen : 128);
|
||
|
|
$tagInfo = $et->GetTagInfo($tagTablePtr, $boxID, \$tmpVal);
|
||
|
|
}
|
||
|
|
# delete all UUID boxes and any writable box if deleting all information
|
||
|
|
if ($outfile and $tagInfo) {
|
||
|
|
if ($boxID eq 'uuid' and $$et{DEL_GROUP}{'*'}) {
|
||
|
|
$et->VPrint(0, " Deleting $$tagInfo{Name}\n");
|
||
|
|
++$$et{CHANGED};
|
||
|
|
next;
|
||
|
|
} elsif ($$tagInfo{Writable}) {
|
||
|
|
my $isOverwriting;
|
||
|
|
if ($$et{DEL_GROUP}{Jpeg2000}) {
|
||
|
|
$isOverwriting = 1;
|
||
|
|
} else {
|
||
|
|
my $nvHash = $et->GetNewValueHash($tagInfo);
|
||
|
|
$isOverwriting = $et->IsOverwriting($nvHash);
|
||
|
|
}
|
||
|
|
if ($isOverwriting) {
|
||
|
|
my $val = substr($$dataPt, $valuePtr, $boxLen);
|
||
|
|
$et->VerboseValue("- Jpeg2000:$$tagInfo{Name}", $val);
|
||
|
|
++$$et{CHANGED};
|
||
|
|
next;
|
||
|
|
} elsif (not $$tagInfo{List}) {
|
||
|
|
delete $$et{AddJp2Tags}{$boxID};
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ($verbose) {
|
||
|
|
$et->VerboseInfo($boxID, $tagInfo,
|
||
|
|
Table => $tagTablePtr,
|
||
|
|
DataPt => $dataPt,
|
||
|
|
Size => $boxLen,
|
||
|
|
Start => $valuePtr,
|
||
|
|
Addr => $valuePtr + $dataPos + $base,
|
||
|
|
);
|
||
|
|
next unless $tagInfo;
|
||
|
|
}
|
||
|
|
if ($$tagInfo{SubDirectory}) {
|
||
|
|
my $subdir = $$tagInfo{SubDirectory};
|
||
|
|
my $subdirStart = $valuePtr;
|
||
|
|
if (defined $$subdir{Start}) {
|
||
|
|
#### eval Start ($valuePtr)
|
||
|
|
$subdirStart = eval($$subdir{Start});
|
||
|
|
}
|
||
|
|
my $subdirLen = $boxLen - ($subdirStart - $valuePtr);
|
||
|
|
my %subdirInfo = (
|
||
|
|
Parent => 'JP2',
|
||
|
|
DataPt => $dataPt,
|
||
|
|
DataPos => -$subdirStart, # (relative to Base)
|
||
|
|
DataLen => $dataLen,
|
||
|
|
DirStart => $subdirStart,
|
||
|
|
DirLen => $subdirLen,
|
||
|
|
DirName => $$subdir{DirName} || $$tagInfo{Name},
|
||
|
|
OutFile => $outfile,
|
||
|
|
Base => $base + $dataPos + $subdirStart,
|
||
|
|
);
|
||
|
|
# remove "UUID-" prefix to allow appropriate directories to be written as a block
|
||
|
|
$subdirInfo{DirName} =~ s/^UUID-//;
|
||
|
|
my $subTable = GetTagTable($$subdir{TagTable}) || $tagTablePtr;
|
||
|
|
if ($outfile) {
|
||
|
|
# remove this directory from our create list
|
||
|
|
delete $$et{AddJp2Dirs}{$$tagInfo{Name}};
|
||
|
|
my $newdir;
|
||
|
|
# only edit writable UUID boxes
|
||
|
|
if ($uuid{$$tagInfo{Name}}) {
|
||
|
|
$newdir = $et->WriteDirectory(\%subdirInfo, $subTable, $$subdir{WriteProc});
|
||
|
|
next if defined $newdir and not length $newdir; # next if deleting the box
|
||
|
|
}
|
||
|
|
# use old box data if not changed
|
||
|
|
defined $newdir or $newdir = substr($$dataPt, $subdirStart, $subdirLen);
|
||
|
|
my $prefixLen = $subdirStart - $valuePtr;
|
||
|
|
my $boxhdr = pack('N', length($newdir) + 8 + $prefixLen) . $boxID;
|
||
|
|
$boxhdr .= substr($$dataPt, $valuePtr, $prefixLen) if $prefixLen;
|
||
|
|
Write($outfile, $boxhdr, $newdir) or $err = 1;
|
||
|
|
} else {
|
||
|
|
# extract as a block if specified
|
||
|
|
$subdirInfo{BlockInfo} = $tagInfo if $$tagInfo{BlockExtract};
|
||
|
|
unless ($et->ProcessDirectory(\%subdirInfo, $subTable, $$subdir{ProcessProc})) {
|
||
|
|
if ($subTable eq $tagTablePtr) {
|
||
|
|
$err = 'JPEG 2000 format error';
|
||
|
|
} else {
|
||
|
|
$err = "Unrecognized $$tagInfo{Name} box";
|
||
|
|
next if $$tagInfo{Name} eq 'XML';
|
||
|
|
}
|
||
|
|
last;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} elsif ($$tagInfo{Format} and not $outfile) {
|
||
|
|
# only save tag values if Format was specified
|
||
|
|
my $rational;
|
||
|
|
my $val = ReadValue($dataPt, $valuePtr, $$tagInfo{Format}, undef, $boxLen, \$rational);
|
||
|
|
if (defined $val) {
|
||
|
|
my $key = $et->FoundTag($tagInfo, $val);
|
||
|
|
# save Rational value
|
||
|
|
$$et{RATIONAL}{$key} = $rational if defined $rational and defined $key;
|
||
|
|
}
|
||
|
|
} elsif ($outfile) {
|
||
|
|
my $boxhdr = pack('N', $boxLen + 8) . $boxID;
|
||
|
|
Write($outfile, $boxhdr, substr($$dataPt, $valuePtr, $boxLen)) or $err = 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (defined $err) {
|
||
|
|
$err or $err = 'Truncated JPEG 2000 box';
|
||
|
|
if ($outfile) {
|
||
|
|
$et->Error($err) unless $err eq '1';
|
||
|
|
return $raf ? -1 : undef;
|
||
|
|
}
|
||
|
|
$et->Warn($err);
|
||
|
|
}
|
||
|
|
return $outBuff if $outfile and not $raf;
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
#------------------------------------------------------------------------------
|
||
|
|
# Read/write meta information from a JPEG 2000 image
|
||
|
|
# Inputs: 0) ExifTool object reference, 1) dirInfo reference
|
||
|
|
# Returns: 1 on success, 0 if this wasn't a valid JPEG 2000 file, or -1 on write error
|
||
|
|
sub ProcessJP2($$)
|
||
|
|
{
|
||
|
|
local $_;
|
||
|
|
my ($et, $dirInfo) = @_;
|
||
|
|
my $raf = $$dirInfo{RAF};
|
||
|
|
my $outfile = $$dirInfo{OutFile};
|
||
|
|
my $hdr;
|
||
|
|
|
||
|
|
# check to be sure this is a valid JPG2000 file
|
||
|
|
return 0 unless $raf->Read($hdr,12) == 12;
|
||
|
|
unless ($hdr eq "\x00\x00\x00\x0cjP \x0d\x0a\x87\x0a" or # (ref 1)
|
||
|
|
$hdr eq "\x00\x00\x00\x0cjP\x1a\x1a\x0d\x0a\x87\x0a") # (ref 2)
|
||
|
|
{
|
||
|
|
return 0 unless $hdr =~ /^\xff\x4f\xff\x51\0/; # check for JP2 codestream format
|
||
|
|
if ($outfile) {
|
||
|
|
$et->Error('Writing of J2C files is not yet supported');
|
||
|
|
return 0
|
||
|
|
}
|
||
|
|
# add J2C markers if not done already
|
||
|
|
unless ($Image::ExifTool::jpegMarker{0x4f}) {
|
||
|
|
$Image::ExifTool::jpegMarker{$_} = $j2cMarker{$_} foreach keys %j2cMarker;
|
||
|
|
}
|
||
|
|
$et->SetFileType('J2C');
|
||
|
|
$raf->Seek(0,0);
|
||
|
|
return $et->ProcessJPEG($dirInfo); # decode with JPEG processor
|
||
|
|
}
|
||
|
|
if ($outfile) {
|
||
|
|
Write($outfile, $hdr) or return -1;
|
||
|
|
$et->InitWriteDirs(\%jp2Map);
|
||
|
|
# save list of directories to create
|
||
|
|
my %addDirs = %{$$et{ADD_DIRS}};
|
||
|
|
$$et{AddJp2Dirs} = \%addDirs;
|
||
|
|
$$et{AddJp2Tags} = $et->GetNewTagInfoHash(\%Image::ExifTool::Jpeg2000::Main);
|
||
|
|
} else {
|
||
|
|
my ($buff, $fileType);
|
||
|
|
# recognize JPX and JPM as unique types of JP2
|
||
|
|
if ($raf->Read($buff, 12) == 12 and $buff =~ /^.{4}ftyp(.{4})/s) {
|
||
|
|
$fileType = 'JPX' if $1 eq 'jpx ';
|
||
|
|
$fileType = 'JPM' if $1 eq 'jpm ';
|
||
|
|
}
|
||
|
|
$raf->Seek(-length($buff), 1) if defined $buff;
|
||
|
|
$et->SetFileType($fileType);
|
||
|
|
}
|
||
|
|
SetByteOrder('MM'); # JPEG 2000 files are big-endian
|
||
|
|
my %dirInfo = (
|
||
|
|
RAF => $raf,
|
||
|
|
DirName => 'JP2',
|
||
|
|
OutFile => $$dirInfo{OutFile},
|
||
|
|
);
|
||
|
|
my $tagTablePtr = GetTagTable('Image::ExifTool::Jpeg2000::Main');
|
||
|
|
return $et->ProcessDirectory(\%dirInfo, $tagTablePtr);
|
||
|
|
}
|
||
|
|
|
||
|
|
1; # end
|
||
|
|
|
||
|
|
__END__
|
||
|
|
|
||
|
|
=head1 NAME
|
||
|
|
|
||
|
|
Image::ExifTool::Jpeg2000 - Read JPEG 2000 meta information
|
||
|
|
|
||
|
|
=head1 SYNOPSIS
|
||
|
|
|
||
|
|
This module is used by Image::ExifTool
|
||
|
|
|
||
|
|
=head1 DESCRIPTION
|
||
|
|
|
||
|
|
This module contains routines required by Image::ExifTool to read JPEG 2000
|
||
|
|
files.
|
||
|
|
|
||
|
|
=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.jpeg.org/public/fcd15444-2.pdf>
|
||
|
|
|
||
|
|
=item L<ftp://ftp.remotesensing.org/jpeg2000/fcd15444-1.pdf>
|
||
|
|
|
||
|
|
=back
|
||
|
|
|
||
|
|
=head1 SEE ALSO
|
||
|
|
|
||
|
|
L<Image::ExifTool::TagNames/Jpeg2000 Tags>,
|
||
|
|
L<Image::ExifTool(3pm)|Image::ExifTool>
|
||
|
|
|
||
|
|
=cut
|
||
|
|
|