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1 <?php
2 /**
3 * Definitions for XMPReader class.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 * http://www.gnu.org/copyleft/gpl.html
19 *
20 * @file
21 * @ingroup Media
22 */
24 /**
25 * This class is just a container for a big array
26 * used by XMPReader to determine which XMP items to
27 * extract.
28 */
31 /** get the items array
32 * @return Array XMP item configuration array.
33 */
36 // This is for if someone makes a custom metadata extension.
37 // For example, a medical wiki might want to decode DICOM xmp properties.
40 }
42 }
46 /**
47 * XMPInfo::$items keeps a list of all the items
48 * we are interested to extract, as well as
49 * information about the item like what type
50 * it is.
51 *
52 * Format is an array of namespaces,
53 * each containing an array of tags
54 * each tag is an array of information about the
55 * tag, including:
56 * * map_group - what group (used for precedence during conflicts)
57 * * mode - What type of item (self::MODE_SIMPLE usually, see above for all values)
58 * * validate - method to validate input. Could also post-process the input. A string value is assumed to be a static method of XMPValidate. Can also take a array( 'className', 'methodName' ).
59 * * choices - array of potential values (format of 'value' => true ). Only used with validateClosed
60 * * rangeLow and rangeHigh - alternative to choices for numeric ranges. Again for validateClosed only.
61 * * children - for MODE_STRUCT items, allowed children.
62 * * structPart - Indicates that this element can only appear as a member of a structure.
63 *
64 * currently this just has a bunch of exif values as this class is only half-done
65 */
72 ),
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162 ),
167 ),
172 ),
177 ),
178 /* Flash */
187 ),
190 ),
196 ),
202 ),
210 ),
218 ),
224 ),
225 /* End Flash */
230 ),
231 /* end rational things */
237 ),
244 ),
250 ),
256 ),
261 ),
266 ),
267 /* todo: there might be interesting information in
268 * exif:DeviceSettingDescription, but need to find an
269 * example
270 */
274 ),
281 ),
288 ),
294 ),
298 ),
303 ),
309 ),
316 ),
317 /* this value is post-processed out later */
323 ),
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367 ),
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386 ),
390 ),
397 ),
403 ),
406 // Note: in exif, GPSDateStamp does not include
407 // the time, where here it does.
411 ),
417 ),
421 ),
425 ),
430 /* can't use a range, as it skips... */
441 ),
442 ),
450 ),
451 /* Pixel(X|Y)Dimension are rather useless, but for
452 * completeness since we do it with exif.
453 */
458 ),
463 ),
470 ),
477 ),
483 ),
484 // Note, 6 is not valid SensingMethod.
492 ),
499 ),
503 ),
504 // This tag should perhaps be displayed to user better.
509 ),
516 ),
521 ),
525 ),
531 ),
532 ),
537 ),
542 ),
548 ),
549 /* this prop should not be used in XMP. dc:rights is the correct prop */
553 ),
558 ),
562 ),
567 ),
572 ),
576 ),
580 ),
581 /**** Do not extract this property
582 * It interferes with auto exif rotation.
583 * 'Orientation' => array(
584 * 'map_group' => 'exif',
585 * 'mode' => XMPReader::MODE_SIMPLE,
586 * 'validate' => 'validateClosed',
587 * 'choices' => array( '1' => true, '2' => true, '3' => true, '4' => true, 5 => true,
588 * '6' => true, '7' => true, '8' => true ),
589 *),
590 ******/
596 ),
602 ),
607 ),
612 ),
618 ),
623 ),
627 ),
628 /* ignore TransferFunction */
633 ),
638 ),
643 ),
648 ),
654 ),
655 /********
656 * Disable extracting this property (bug 31944)
657 * Several files have a string instead of a Seq
658 * for this property. XMPReader doesn't handle
659 * mismatched types very gracefully (it marks
660 * the entire file as invalid, instead of just
661 * the relavent prop). Since this prop
662 * doesn't communicate all that useful information
663 * just disable this prop for now, until such
664 * XMPReader is more graceful (bug 32172)
665 * 'YCbCrSubSampling' => array(
666 * 'map_group' => 'exif',
667 * 'mode' => XMPReader::MODE_SEQ,
668 * 'validate' => 'validateClosed',
669 * 'choices' => array( '1' => true, '2' => true ),
670 * ),
671 */
672 ),
677 ),
681 ),
686 ),
687 ),
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698 ),
703 ),
708 ),
713 ),
716 // Note, not mapped with other date properties, as this type of date is
717 // non-specific: "A point or period of time associated with an event in
718 // the lifecycle of the resource"
722 ),
723 /* Do not extract dc:format, as we've got better ways to determine mimetype */
728 ),
734 ),
739 ),
740 // for related images/resources
745 ),
750 ),
751 // Note: source is not mapped with iptc source, since iptc
752 // source describes the source of the image in terms of a person
753 // who provided the image, where this is to describe an image that the
754 // current one is based on.
759 ),
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796 ),
800 // map_name to be consistent with other date names.
803 ),
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813 ),
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825 ),
830 ),
831 // this seems similar to dc:rights.
835 ),
839 ),
840 ),
841 // XMP media management.
843 // if we extract the exif UniqueImageID, might
844 // as well do this too.
848 ),
849 // It might also be useful to do xmpMM:LastURL
850 // and xmpMM:DerivedFrom as you can potentially,
851 // get the url of this document/source for this
852 // document. However whats more likely is you'd
853 // get a file:// url for the path of the doc,
854 // which is somewhat of a privacy issue.
855 ),
861 ),
866 ),
871 ),
876 ),
877 ),
878 //Note, this property affects how jpeg metadata is extracted.
883 ),
884 ),
885 /* Note, in iptc schemas, the legacy properties are denoted
886 * as deprecated, since other properties should used instead,
887 * and properties marked as deprecated in the standard are
888 * are marked as general here as they don't have replacements
889 */
895 ),
900 ),
905 ),
908 // marking as deprecated as the xmp prop preferred
912 // note this prop is an XMP, not IPTC date
913 ),
918 ),
923 ),
928 ),
930 /* This corresponds with 2:85
931 * By-line Title, which needs to be
932 * handled weirdly to correspond
933 * with iptc/exif. */
936 ),
940 ),
944 ),
948 ),
950 // Note, this prop is deprecated, but in general
951 // group since it doesn't have a replacement.
955 ),
960 ),
964 ),
965 ),
971 ),
975 ),
976 // Note, this is a six digit code.
977 // See: http://cv.iptc.org/newscodes/scene/
978 // Since these aren't really all that common,
979 // we just show the number.
985 ),
986 /* Note: SubjectCode should be an 8 ascii digits.
987 * it is not really an integer (has leading 0's,
988 * cannot have a +/- sign), but validateInteger
989 * will let it through.
990 */
996 ),
1001 ),
1003 /* Note this maps to 2:118 in iim
1004 * (Contact) field. However those field
1005 * types are slightly different - 2:118
1006 * is free form text field, where this
1007 * is more structured.
1008 */
1021 ),
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1052 ),
1057 ),
1062 ),
1063 /* End contact info struct properties */
1064 ),
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1084 ),
1090 ),
1091 // LocationShown and LocationCreated are handled
1092 // specially because they are hierarchical, but we
1093 // also want to merge with the old non-hierarchical.
1104 ),
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1139 ),
1144 ),
1149 ),
1151 /* Other props that might be interesting but
1152 * Not currently extracted:
1153 * ArtworkOrObject, (info about objects in picture)
1154 * DigitalSourceType
1155 * RegistryId
1156 */
1157 ),
1159 /* Plus props we might want to consider:
1160 * (Note: some of these have unclear/incomplete definitions
1161 * from the iptc4xmp standard).
1162 * ImageSupplier (kind of like iptc source field)
1163 * ImageSupplierId (id code for image from supplier)
1164 * CopyrightOwner
1165 * ImageCreator
1166 * Licensor
1167 * Various model release fields
1168 * Property release fields.
1169 */
1170 );
1171 }