182 lines
7.1 KiB
Perl
182 lines
7.1 KiB
Perl
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#------------------------------------------------------------------------------
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# File: DPX.pm
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#
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# Description: Read DPX meta information
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#
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# Revisions: 2013-09-19 - P. Harvey created
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#
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# References: 1) http://www.cineon.com/ff_draft.php
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#------------------------------------------------------------------------------
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package Image::ExifTool::DPX;
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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 = '1.02';
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# DPX tags
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%Image::ExifTool::DPX::Main = (
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PROCESS_PROC => \&Image::ExifTool::ProcessBinaryData,
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GROUPS => { 0 => 'File', 1 => 'File', 2 => 'Image' },
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NOTES => 'Tags extracted from DPX (Digital Picture Exchange) images.',
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0 => { Name => 'ByteOrder', Format => 'undef[4]', PrintConv => { SDPX => 'Big-endian', XPDS => 'Little-endian' } },
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8 => { Name => 'HeaderVersion', Format => 'string[8]' },
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# 24 => { Name => 'GenericHeaderSize', Format => 'int32u' }, # = 1664
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# 28 => { Name => 'IndustryStandardHeaderSize', Format => 'int32u' }, # = 384
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16 => { Name => 'DPXFileSize', Format => 'int32u' },
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20 => { Name => 'DittoKey', Format => 'int32u', PrintConv => { 0 => 'Same', 1 => 'New' } },
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36 => { Name => 'ImageFileName', Format => 'string[100]' },
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136 => {
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Name => 'CreateDate',
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Format => 'string[24]',
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Groups => { 2 => 'Time' },
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ValueConv => '$val =~ s/(\d{4}:\d{2}:\d{2}):/$1 /; $val',
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PrintConv => '$self->ConvertDateTime($val)',
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},
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160 => { Name => 'Creator', Format => 'string[100]', Groups => { 2 => 'Author' } },
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260 => { Name => 'Project', Format => 'string[200]' },
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460 => { Name => 'Copyright', Format => 'string[200]', Groups => { 2 => 'Author' } },
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660 => { Name => 'EncryptionKey', Format => 'int32u', PrintConv => 'sprintf("%.8x",$val)' },
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768 => {
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Name => 'Orientation',
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Format => 'int16u',
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PrintConv => {
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0 => 'Horizontal (normal)',
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1 => 'Mirror vertical',
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2 => 'Mirror horizontal',
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3 => 'Rotate 180',
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4 => 'Mirror horizontal and rotate 270 CW',
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5 => 'Rotate 90 CW',
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6 => 'Rotate 270 CW',
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7 => 'Mirror horizontal and rotate 90 CW',
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},
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},
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770 => { Name => 'ImageElements', Format => 'int16u' },
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772 => { Name => 'ImageWidth', Format => 'int32u' },
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776 => { Name => 'ImageHeight', Format => 'int32u' },
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780 => { Name => 'DataSign', Format => 'int32u', PrintConv => { 0 => 'Unsigned', 1 => 'Signed' } },
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800 => {
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Name => 'ComponentsConfiguration',
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Format => 'int8u',
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PrintConv => {
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0 => 'User-defined single component',
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1 => 'Red (R)',
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2 => 'Green (G)',
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3 => 'Blue (B)',
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4 => 'Alpha (matte)',
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6 => 'Luminance (Y)',
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7 => 'Chrominance (Cb, Cr, subsampled by two)',
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8 => 'Depth (Z)',
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9 => 'Composite video',
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50 => 'R, G, B',
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51 => 'R, G, B, Alpha',
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52 => 'Alpha, B, G, R',
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100 => 'Cb, Y, Cr, Y (4:2:2)',
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101 => 'Cb, Y, A, Cr, Y, A (4:2:2:4)',
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102 => 'Cb, Y, Cr (4:4:4)',
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103 => 'Cb, Y, Cr, A (4:4:4:4)',
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150 => 'User-defined 2 component element',
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151 => 'User-defined 3 component element',
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152 => 'User-defined 4 component element',
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153 => 'User-defined 5 component element',
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154 => 'User-defined 6 component element',
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155 => 'User-defined 7 component element',
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156 => 'User-defined 8 component element',
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},
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},
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803 => { Name => 'BitDepth', Format => 'int8u' },
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820 => { Name => 'ImageDescription', Format => 'string[32]' },
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892 => { Name => 'Image2Description', Format => 'string[32]', RawConv => '$val=~/[^\xff]/ ? $val : undef' },
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964 => { Name => 'Image3Description', Format => 'string[32]', RawConv => '$val=~/[^\xff]/ ? $val : undef' },
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1036=> { Name => 'Image4Description', Format => 'string[32]', RawConv => '$val=~/[^\xff]/ ? $val : undef' },
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1108=> { Name => 'Image5Description', Format => 'string[32]', RawConv => '$val=~/[^\xff]/ ? $val : undef' },
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1180=> { Name => 'Image6Description', Format => 'string[32]', RawConv => '$val=~/[^\xff]/ ? $val : undef' },
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1252=> { Name => 'Image7Description', Format => 'string[32]', RawConv => '$val=~/[^\xff]/ ? $val : undef' },
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1324=> { Name => 'Image8Description', Format => 'string[32]', RawConv => '$val=~/[^\xff]/ ? $val : undef' },
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# 1408=> { Name => 'XOffset', Format => 'int32u' },
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# 1412=> { Name => 'YOffset', Format => 'int32u' },
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# 1416=> { Name => 'XCenter', Format => 'float' },
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# 1420=> { Name => 'YCenter', Format => 'float' },
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# 1424=> { Name => 'XOriginalSize', Format => 'int32u' },
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# 1428=> { Name => 'YOriginalSize', Format => 'int32u' },
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1432=> { Name => 'SourceFileName', Format => 'string[100]' },
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1532=> { Name => 'SourceCreateDate', Format => 'string[24]' },
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1556=> { Name => 'InputDeviceName', Format => 'string[32]' },
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1588=> { Name => 'InputDeviceSerialNumber', Format => 'string[32]' },
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# 1620=> { Name => 'AspectRatio', Format => 'int32u' },
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1724 => { Name => 'FrameRate', Format => 'float' },
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1732 => { Name => 'FrameID', Format => 'string[32]' },
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1764 => { Name => 'SlateInformation', Format => 'string[100]' },
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2048 => { Name => 'UserID', Format => 'string[32]' },
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);
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#------------------------------------------------------------------------------
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# Extract EXIF information from a DPX image
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# Inputs: 0) ExifTool object reference, 1) dirInfo reference
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# Returns: 1 on success, 0 if this wasn't a valid DPX file
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sub ProcessDPX($$)
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{
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my ($et, $dirInfo) = @_;
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my $raf = $$dirInfo{RAF};
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my $buff;
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# verify this is a valid DPX file
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return 0 unless $raf->Read($buff, 2080) == 2080;
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return 0 unless $buff =~ /^(SDPX|XPDS)/;
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SetByteOrder($1 eq 'SDPX' ? 'MM' : 'II');
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$et->SetFileType(); # set the FileType tag
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my $hdrLen = Get32u(\$buff,24) + Get32u(\$buff,28);
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$hdrLen == 2048 or $et->Warn("Unexpected DPX header length ($hdrLen)");
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my %dirInfo = (
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DataPt => \$buff,
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DirStart => 0,
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DirLen => length($buff),
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);
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my $tagTablePtr = GetTagTable('Image::ExifTool::DPX::Main');
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$et->ProcessDirectory(\%dirInfo, $tagTablePtr);
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return 1;
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}
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1; # end
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__END__
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=head1 NAME
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Image::ExifTool::DPX - Read DPX meta information
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=head1 SYNOPSIS
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This module is used by Image::ExifTool
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=head1 DESCRIPTION
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This module contains definitions required by Image::ExifTool to read
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metadata from DPX (Digital Picture Exchange) images.
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=head1 AUTHOR
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Copyright 2003-2016, Phil Harvey (phil at owl.phy.queensu.ca)
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This library is free software; you can redistribute it and/or modify it
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under the same terms as Perl itself.
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=head1 REFERENCES
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=over 4
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=item L<http://www.cineon.com/ff_draft.php>
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=back
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=head1 SEE ALSO
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L<Image::ExifTool::TagNames/DPX Tags>,
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L<Image::ExifTool(3pm)|Image::ExifTool>
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=cut
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