685 lines
16 KiB
Perl
685 lines
16 KiB
Perl
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#------------------------------------------------------------------------------
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# File: MNG.pm
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#
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# Description: MNG and JNG meta information tags
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#
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# Revisions: 06/23/2005 - P. Harvey Created
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#
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# References: 1) http://www.libpng.org/pub/mng/
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#------------------------------------------------------------------------------
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package Image::ExifTool::MNG;
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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 = '1.00';
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# MNG chunks
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%Image::ExifTool::MNG::Main = (
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GROUPS => { 2 => 'Image' },
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NOTES => q{
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This table contains definitions for tags found in MNG and JNG images. MNG
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is a superset of PNG and JNG, so a MNG image may contain any of these tags
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as well as any PNG tags. Conversely, only some of these tags are valid for
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JNG images.
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},
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BACK => {
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Name => 'Background',
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SubDirectory => { TagTable => 'Image::ExifTool::MNG::Background' },
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},
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BASI => {
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Name => 'BasisObject',
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SubDirectory => { TagTable => 'Image::ExifTool::MNG::BasisObject' },
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},
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CLIP => {
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Name => 'ClipObjects',
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SubDirectory => { TagTable => 'Image::ExifTool::MNG::ClipObjects' },
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},
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CLON => {
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Name => 'CloneObject',
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SubDirectory => { TagTable => 'Image::ExifTool::MNG::CloneObject' },
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},
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DBYK => {
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Name => 'DropByKeyword',
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Binary => 1,
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},
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DEFI => {
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Name => 'DefineObject',
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SubDirectory => { TagTable => 'Image::ExifTool::MNG::DefineObject' },
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},
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DHDR => {
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Name => 'DeltaPNGHeader',
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SubDirectory => { TagTable => 'Image::ExifTool::MNG::DeltaPNGHeader' },
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},
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DISC => {
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Name => 'DiscardObjects',
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ValueConv => 'join(" ",unpack("n*",$val))',
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},
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DROP => {
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Name => 'DropChunks',
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ValueConv => 'join(" ",$val=~/..../g)',
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},
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# ENDL
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eXPi => {
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Name => 'ExportImage',
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SubDirectory => { TagTable => 'Image::ExifTool::MNG::ExportImage' },
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},
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fPRI => {
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Name => 'FramePriority',
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SubDirectory => { TagTable => 'Image::ExifTool::MNG::FramePriority' },
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},
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FRAM => {
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Name => 'Frame',
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Binary => 1,
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},
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# IJNG
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# IPNG
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# JDAA (JNG)
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# JDAT (JNG)
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JHDR => { # (JNG)
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Name => 'JNGHeader',
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SubDirectory => { TagTable => 'Image::ExifTool::MNG::JNGHeader' },
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},
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# JSEP (JNG)
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LOOP => {
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Name => 'Loop',
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SubDirectory => { TagTable => 'Image::ExifTool::MNG::Loop' },
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},
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MAGN => {
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Name => 'MagnifyObject',
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SubDirectory => { TagTable => 'Image::ExifTool::MNG::MagnifyObject' },
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},
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# MEND
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MHDR => {
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Name => 'MNGHeader',
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SubDirectory => { TagTable => 'Image::ExifTool::MNG::MNGHeader' },
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},
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MOVE => {
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Name => 'MoveObjects',
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SubDirectory => { TagTable => 'Image::ExifTool::MNG::MoveObjects' },
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},
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nEED => {
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Name => 'ResourcesNeeded',
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Binary => 1,
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},
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ORDR => {
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Name => 'OrderingRestrictions',
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Binary => 1,
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},
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PAST => {
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Name => 'PasteImage',
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SubDirectory => { TagTable => 'Image::ExifTool::MNG::PasteImage' },
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},
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pHYg => {
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Name => 'GlobalPixelSize',
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SubDirectory => { TagTable => 'Image::ExifTool::PNG::PhysicalPixel' },
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},
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PPLT => {
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Name => 'PartialPalette',
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Binary => 1,
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},
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PROM => {
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Name => 'PromoteParent',
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SubDirectory => { TagTable => 'Image::ExifTool::MNG::PromoteParent' },
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},
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SAVE => {
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Name => 'SaveObjects',
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Binary => 1,
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},
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SEEK => {
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Name => 'SeekPoint',
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ValueConv => '$val=~s/\0.*//s; $val',
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},
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SHOW => {
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Name => 'ShowObjects',
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SubDirectory => { TagTable => 'Image::ExifTool::MNG::ShowObjects' },
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},
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TERM => {
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Name => 'TerminationAction',
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SubDirectory => { TagTable => 'Image::ExifTool::MNG::TerminationAction' },
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},
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);
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# MNG MHDR chunk
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%Image::ExifTool::MNG::MNGHeader = (
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PROCESS_PROC => \&Image::ExifTool::ProcessBinaryData,
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GROUPS => { 2 => 'Image' },
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FORMAT => 'int32u',
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0 => 'ImageWidth',
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1 => 'ImageHeight',
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2 => 'TicksPerSecond',
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3 => 'NominalLayerCount',
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4 => 'NominalFrameCount',
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5 => 'NominalPlayTime',
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6 => {
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Name => 'SimplicityProfile',
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PrintConv => 'sprintf("0x%.8x", $val)',
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},
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);
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# MNG BASI chunk
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%Image::ExifTool::MNG::BasisObject = (
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PROCESS_PROC => \&Image::ExifTool::ProcessBinaryData,
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GROUPS => { 2 => 'Image' },
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0 => {
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Name => 'ImageWidth',
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Format => 'int32u',
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},
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4 => {
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Name => 'ImageHeight',
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Format => 'int32u',
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},
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8 => 'BitDepth',
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9 => {
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Name => 'ColorType',
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RawConv => '$Image::ExifTool::PNG::colorType = $val',
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PrintConv => {
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0 => 'Grayscale',
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2 => 'RGB',
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3 => 'Palette',
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4 => 'Grayscale with Alpha',
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6 => 'RGB with Alpha',
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},
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},
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10 => {
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Name => 'Compression',
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PrintConv => { 0 => 'Deflate/Inflate' },
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},
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11 => {
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Name => 'Filter',
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PrintConv => { 0 => 'Adaptive' },
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},
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12 => {
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Name => 'Interlace',
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PrintConv => { 0 => 'Noninterlaced', 1 => 'Adam7 Interlace' },
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},
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13 => {
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Name => 'RedSample',
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Format => 'int32u',
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},
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17 => {
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Name => 'GreenSample',
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Format => 'int32u',
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},
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21 => {
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Name => 'BlueSample',
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Format => 'int32u',
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},
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25 => {
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Name => 'AlphaSample',
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Format => 'int32u',
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},
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26 => 'Viewable',
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);
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# MNG LOOP chunk
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%Image::ExifTool::MNG::Loop = (
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PROCESS_PROC => \&Image::ExifTool::ProcessBinaryData,
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GROUPS => { 2 => 'Image' },
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0 => 'NestLevel',
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1 => {
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Name => 'IterationCount',
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Format => 'int32u',
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},
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5 => {
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Name => 'TerminationCondition',
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PrintConv => {
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0 => 'Deterministic, not cacheable',
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1 => 'Decoder discretion, not cacheable',
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2 => 'User discretion, not cacheable',
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3 => 'External signal, not cacheable',
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4 => 'Deterministic, cacheable',
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5 => 'Decoder discretion, cacheable',
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6 => 'User discretion, cacheable',
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7 => 'External signal, cacheable',
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},
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},
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6 => {
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Name => 'IterationMinMax',
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Format => 'int32u[2]',
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},
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14 => {
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Name => 'SignalNumber',
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Format => 'int32u',
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},
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);
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# MNG DEFI chunk
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%Image::ExifTool::MNG::DefineObject = (
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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 => 'ObjectID',
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Format => 'int16u',
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},
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2 => 'DoNotShow',
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3 => 'ConcreteFlag',
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4 => {
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Name => 'XYLocation',
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Format => 'int32u[2]',
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},
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12 => {
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Name => 'ClippingBoundary',
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Format => 'int32u[4]',
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},
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);
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# MNG CLON chunk
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%Image::ExifTool::MNG::CloneObject = (
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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 => 'SourceID',
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Format => 'int16u',
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},
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2 => {
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Name => 'CloneID',
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Format => 'int16u',
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},
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4 => {
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Name => 'CloneType',
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PrintConv => { 0 => 'Full', 1 => 'Parital', 2 => 'Renumber object' },
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},
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5 => 'DoNotShow',
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6 => 'ConcreteFlag',
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7 => {
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Name => 'LocalDeltaType',
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PrintConv => { 0 => 'Absolute', 1 => 'Relative' },
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},
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8 => {
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Name => 'DeltaXY',
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Format => 'int32u[2]',
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},
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);
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# MNG PAST chunk
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%Image::ExifTool::MNG::PasteImage = (
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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 => 'DestinationID',
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Format => 'int16u',
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},
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2 => {
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Name => 'TargetDeltaType',
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PrintConv => { 0 => 'Absolute', 1 => 'Relative' },
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},
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3 => {
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Name => 'TargetXY',
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Format => 'int32u[2]',
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},
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11 => {
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Name => 'SourceID',
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Format => 'int16u',
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},
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13 => {
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Name => 'CompositionMode',
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PrintConv => { 0 => 'Over', 1 => 'Replace', 2 => 'Under' },
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},
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14 => {
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Name => 'Orientation',
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PrintConv => {
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0 => 'Same as source',
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2 => 'Flipped left-right, then up-down',
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4 => 'Flipped left-right',
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6 => 'Flipped up-down',
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8 => 'Tiled',
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},
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},
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15 => {
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Name => 'OffsetOrigin',
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PrintConv => { 0 => 'Desination Origin', 1 => 'Target Origin' },
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},
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16 => {
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Name => 'OffsetXY',
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Format => 'int32u[2]',
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},
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24 => {
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Name => 'BoundaryOrigin',
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PrintConv => { 0 => 'Desination Origin', 1 => 'Target Origin' },
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},
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25 => {
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Name => 'PastClippingBoundary',
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Format => 'int32u[4]',
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},
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);
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my %magMethod = (
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0 => 'No Magnification',
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1 => 'Pixel Replication',
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2 => 'Linear Interpolation',
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3 => 'Closest Pixel',
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4 => 'Color Linear Interpolation and Alpha Closest Pixel',
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5 => 'Color Closest Pixel and Alpha Linear Interpolation',
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);
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# MNG MAGN chunk
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%Image::ExifTool::MNG::MagnifyObject = (
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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 => 'FirstObjectID',
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Format => 'int16u',
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},
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2 => {
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Name => 'LastObjectID',
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Format => 'int16u',
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},
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4 => {
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Name => 'XMethod',
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PrintConv => \%magMethod,
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},
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5 => {
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Name => 'XMag',
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Format => 'int16u',
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},
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7 => {
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Name => 'YMag',
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Format => 'int16u',
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},
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9 => {
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Name => 'LeftMag',
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Format => 'int16u',
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},
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11 => {
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Name => 'RightMag',
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Format => 'int16u',
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},
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13 => {
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Name => 'TopMag',
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Format => 'int16u',
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},
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15 => {
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Name => 'BottomMag',
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Format => 'int16u',
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},
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17 => {
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Name => 'YMethod',
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PrintConv => \%magMethod,
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},
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|
);
|
||
|
|
|
||
|
|
# MNG TERM chunk
|
||
|
|
%Image::ExifTool::MNG::TerminationAction = (
|
||
|
|
PROCESS_PROC => \&Image::ExifTool::ProcessBinaryData,
|
||
|
|
GROUPS => { 2 => 'Image' },
|
||
|
|
0 => {
|
||
|
|
Name => 'TerminationAction',
|
||
|
|
PrintConv => {
|
||
|
|
0 => 'Show Last Frame',
|
||
|
|
1 => 'Display Nothing',
|
||
|
|
2 => 'Show First Frame',
|
||
|
|
3 => 'Repeat Sequence',
|
||
|
|
},
|
||
|
|
},
|
||
|
|
1 => {
|
||
|
|
Name => 'IterationEndAction',
|
||
|
|
PrintConv => {
|
||
|
|
0 => 'Show Last Frame',
|
||
|
|
1 => 'Display Nothing',
|
||
|
|
2 => 'Show First Frame',
|
||
|
|
},
|
||
|
|
},
|
||
|
|
2 => {
|
||
|
|
Name => 'Delay',
|
||
|
|
Format => 'int32u',
|
||
|
|
},
|
||
|
|
6 => {
|
||
|
|
Name => 'IterationMax',
|
||
|
|
Format => 'int32u',
|
||
|
|
},
|
||
|
|
);
|
||
|
|
|
||
|
|
# MNG BACK chunk
|
||
|
|
%Image::ExifTool::MNG::Background = (
|
||
|
|
PROCESS_PROC => \&Image::ExifTool::ProcessBinaryData,
|
||
|
|
GROUPS => { 2 => 'Image' },
|
||
|
|
0 => {
|
||
|
|
Name => 'BackgroundColor',
|
||
|
|
Format => 'int16u[3]',
|
||
|
|
},
|
||
|
|
6 => {
|
||
|
|
Name => 'MandatoryBackground',
|
||
|
|
PrintConv => {
|
||
|
|
0 => 'Color and Image Advisory',
|
||
|
|
1 => 'Color Mandatory, Image Advisory',
|
||
|
|
2 => 'Color Advisory, Image Mandatory',
|
||
|
|
3 => 'Color and Image Mandatory',
|
||
|
|
},
|
||
|
|
},
|
||
|
|
7 => {
|
||
|
|
Name => 'BackgroundImageID',
|
||
|
|
Format => 'int16u',
|
||
|
|
},
|
||
|
|
9 => {
|
||
|
|
Name => 'BackgroundTiling',
|
||
|
|
PrintConv => { 0 => 'No', 1 => 'Yes' },
|
||
|
|
},
|
||
|
|
);
|
||
|
|
|
||
|
|
# MNG MOVE chunk
|
||
|
|
%Image::ExifTool::MNG::MoveObjects = (
|
||
|
|
PROCESS_PROC => \&Image::ExifTool::ProcessBinaryData,
|
||
|
|
GROUPS => { 2 => 'Image' },
|
||
|
|
0 => {
|
||
|
|
Name => 'FirstObject',
|
||
|
|
Format => 'int16u',
|
||
|
|
},
|
||
|
|
2 => {
|
||
|
|
Name => 'LastObject',
|
||
|
|
Format => 'int16u',
|
||
|
|
},
|
||
|
|
4 => {
|
||
|
|
Name => 'DeltaType',
|
||
|
|
PrintConv => { 0 => 'Absolute', 1 => 'Relative' },
|
||
|
|
},
|
||
|
|
5 => {
|
||
|
|
Name => 'DeltaXY',
|
||
|
|
Format => 'int32u[2]',
|
||
|
|
},
|
||
|
|
);
|
||
|
|
|
||
|
|
# MNG CLIP chunk
|
||
|
|
%Image::ExifTool::MNG::ClipObjects = (
|
||
|
|
PROCESS_PROC => \&Image::ExifTool::ProcessBinaryData,
|
||
|
|
GROUPS => { 2 => 'Image' },
|
||
|
|
0 => {
|
||
|
|
Name => 'FirstObject',
|
||
|
|
Format => 'int16u',
|
||
|
|
},
|
||
|
|
2 => {
|
||
|
|
Name => 'LastObject',
|
||
|
|
Format => 'int16u',
|
||
|
|
},
|
||
|
|
4 => {
|
||
|
|
Name => 'DeltaType',
|
||
|
|
PrintConv => { 0 => 'Absolute', 1 => 'Relative' },
|
||
|
|
},
|
||
|
|
5 => {
|
||
|
|
Name => 'ClipBoundary',
|
||
|
|
Format => 'int32u[4]',
|
||
|
|
},
|
||
|
|
);
|
||
|
|
|
||
|
|
# MNG SHOW chunk
|
||
|
|
%Image::ExifTool::MNG::ShowObjects = (
|
||
|
|
PROCESS_PROC => \&Image::ExifTool::ProcessBinaryData,
|
||
|
|
GROUPS => { 2 => 'Image' },
|
||
|
|
0 => {
|
||
|
|
Name => 'FirstObject',
|
||
|
|
Format => 'int16u',
|
||
|
|
},
|
||
|
|
2 => {
|
||
|
|
Name => 'LastObject',
|
||
|
|
Format => 'int16u',
|
||
|
|
},
|
||
|
|
4 => 'ShowMode',
|
||
|
|
);
|
||
|
|
|
||
|
|
# MNG eXPI chunk
|
||
|
|
%Image::ExifTool::MNG::ExportImage = (
|
||
|
|
PROCESS_PROC => \&Image::ExifTool::ProcessBinaryData,
|
||
|
|
GROUPS => { 2 => 'Image' },
|
||
|
|
0 => {
|
||
|
|
Name => 'SnapshotID',
|
||
|
|
Format => 'int16u',
|
||
|
|
},
|
||
|
|
2 => {
|
||
|
|
Name => 'SnapshotName',
|
||
|
|
Format => 'string',
|
||
|
|
},
|
||
|
|
);
|
||
|
|
|
||
|
|
# MNG fPRI chunk
|
||
|
|
%Image::ExifTool::MNG::FramePriority = (
|
||
|
|
PROCESS_PROC => \&Image::ExifTool::ProcessBinaryData,
|
||
|
|
GROUPS => { 2 => 'Image' },
|
||
|
|
0 => {
|
||
|
|
Name => 'DeltaType',
|
||
|
|
PrintConv => { 0 => 'Absolute', 1 => 'Relative' },
|
||
|
|
},
|
||
|
|
2 => 'Priority',
|
||
|
|
);
|
||
|
|
|
||
|
|
# MNG DHDR chunk
|
||
|
|
%Image::ExifTool::MNG::DeltaPNGHeader = (
|
||
|
|
PROCESS_PROC => \&Image::ExifTool::ProcessBinaryData,
|
||
|
|
GROUPS => { 2 => 'Image' },
|
||
|
|
0 => {
|
||
|
|
Name => 'ObjectID',
|
||
|
|
Format => 'int16u',
|
||
|
|
},
|
||
|
|
2 => {
|
||
|
|
Name => 'ImageType',
|
||
|
|
PrintConv => {
|
||
|
|
0 => 'Unspecified',
|
||
|
|
1 => 'PNG',
|
||
|
|
2 => 'JNG',
|
||
|
|
},
|
||
|
|
},
|
||
|
|
3 => {
|
||
|
|
Name => 'DeltaType',
|
||
|
|
PrintConv => {
|
||
|
|
0 => 'Full Replacement',
|
||
|
|
1 => 'Pixel Addition',
|
||
|
|
2 => 'Alpha Addition',
|
||
|
|
3 => 'Color Addition',
|
||
|
|
4 => 'Pixel Replacement',
|
||
|
|
5 => 'Alpha Replacement',
|
||
|
|
6 => 'Color Replacement',
|
||
|
|
7 => 'No Change',
|
||
|
|
},
|
||
|
|
},
|
||
|
|
4 => {
|
||
|
|
Name => 'BlockSize',
|
||
|
|
Format => 'int32u[2]',
|
||
|
|
},
|
||
|
|
12 => {
|
||
|
|
Name => 'BlockLocation',
|
||
|
|
Format => 'int32u[2]',
|
||
|
|
},
|
||
|
|
);
|
||
|
|
|
||
|
|
# MNG PROM chunk
|
||
|
|
%Image::ExifTool::MNG::PromoteParent = (
|
||
|
|
PROCESS_PROC => \&Image::ExifTool::ProcessBinaryData,
|
||
|
|
GROUPS => { 2 => 'Image' },
|
||
|
|
0 => 'NewColorType',
|
||
|
|
1 => 'NewBitDepth',
|
||
|
|
2 => {
|
||
|
|
Name => 'FillMethod',
|
||
|
|
PrintConv => { 0 => 'Bit Replication', 1 => 'Zero Fill' },
|
||
|
|
},
|
||
|
|
);
|
||
|
|
|
||
|
|
# JNG JHDR chunk
|
||
|
|
%Image::ExifTool::MNG::JNGHeader = (
|
||
|
|
PROCESS_PROC => \&Image::ExifTool::ProcessBinaryData,
|
||
|
|
GROUPS => { 2 => 'Image' },
|
||
|
|
0 => {
|
||
|
|
Name => 'ImageWidth',
|
||
|
|
Format => 'int32u',
|
||
|
|
},
|
||
|
|
4 => {
|
||
|
|
Name => 'ImageHeight',
|
||
|
|
Format => 'int32u',
|
||
|
|
},
|
||
|
|
8 => {
|
||
|
|
Name => 'ColorType',
|
||
|
|
PrintConv => {
|
||
|
|
8 => 'Gray',
|
||
|
|
10 => 'Color',
|
||
|
|
12 => 'Gray Alpha',
|
||
|
|
14 => 'Color Alpha',
|
||
|
|
},
|
||
|
|
},
|
||
|
|
9 => 'BitDepth',
|
||
|
|
10 => {
|
||
|
|
Name => 'Compression',
|
||
|
|
PrintConv => { 8 => 'Huffman-coded baseline JPEG' },
|
||
|
|
},
|
||
|
|
11 => {
|
||
|
|
Name => 'Interlace',
|
||
|
|
PrintConv => { 0 => 'Sequential', 8 => 'Progressive' },
|
||
|
|
},
|
||
|
|
12 => 'AlphaBitDepth',
|
||
|
|
13 => {
|
||
|
|
Name => 'AlphaCompression',
|
||
|
|
PrintConv => {
|
||
|
|
0 => 'MNG Grayscale IDAT',
|
||
|
|
8 => 'JNG 8-bit Grayscale JDAA',
|
||
|
|
},
|
||
|
|
},
|
||
|
|
14 => {
|
||
|
|
Name => 'AlphaFilter',
|
||
|
|
PrintConv => { 0 => 'Adaptive MNG (N/A for JPEG)' },
|
||
|
|
},
|
||
|
|
15 => {
|
||
|
|
Name => 'AlphaInterlace',
|
||
|
|
PrintConv => { 0 => 'Noninterlaced' },
|
||
|
|
},
|
||
|
|
);
|
||
|
|
|
||
|
|
1; # end
|
||
|
|
|
||
|
|
__END__
|
||
|
|
|
||
|
|
=head1 NAME
|
||
|
|
|
||
|
|
Image::ExifTool::MNG - MNG and JNG meta information tags
|
||
|
|
|
||
|
|
=head1 SYNOPSIS
|
||
|
|
|
||
|
|
This module is used by Image::ExifTool
|
||
|
|
|
||
|
|
=head1 DESCRIPTION
|
||
|
|
|
||
|
|
This module contains definitions required by Image::ExifTool to read MNG
|
||
|
|
(Multi-image Network Graphics) and JNG (JPEG Network Graphics) images.
|
||
|
|
|
||
|
|
=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.libpng.org/pub/mng/>
|
||
|
|
|
||
|
|
=back
|
||
|
|
|
||
|
|
=head1 SEE ALSO
|
||
|
|
|
||
|
|
L<Image::ExifTool::TagNames/MNG Tags>,
|
||
|
|
L<Image::ExifTool::TagNames/PNG Tags>,
|
||
|
|
L<Image::ExifTool(3pm)|Image::ExifTool>
|
||
|
|
|
||
|
|
=cut
|
||
|
|
|