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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 */
30 /** Get the items array
31 * @return array XMP item configuration array.
32 */
35 // This is for if someone makes a custom metadata extension.
36 // For example, a medical wiki might want to decode DICOM xmp properties.
39 }
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
58 * all values).
59 * * validate - Method to validate input. Could also post-process the
60 * input. A string value is assumed to be a static method of
61 * XMPValidate. Can also take a array( 'className', 'methodName' ).
62 * * choices - Array of potential values (format of 'value' => true ).
63 * Only used with validateClosed.
64 * * rangeLow and rangeHigh - Alternative to choices for numeric ranges.
65 * Again for validateClosed only.
66 * * children - For MODE_STRUCT items, allowed children.
67 * * structPart - Indicates that this element can only appear as a member
68 * of a structure.
69 *
70 * Currently this just has a bunch of EXIF values as this class is only half-done.
71 */
78 ),
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163 ),
168 ),
173 ),
178 ),
183 ),
184 /* Flash */
193 ),
196 ),
202 ),
208 ),
216 ),
224 ),
230 ),
231 /* End Flash */
236 ),
237 /* end rational things */
243 ),
250 ),
256 ),
262 ),
267 ),
272 ),
273 /* todo: there might be interesting information in
274 * exif:DeviceSettingDescription, but need to find an
275 * example
276 */
280 ),
287 ),
294 ),
300 ),
304 ),
309 ),
315 ),
322 ),
323 /* this value is post-processed out later */
329 ),
333 ),
339 ),
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368 ),
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378 ),
382 ),
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392 ),
396 ),
403 ),
409 ),
412 // Note: in exif, GPSDateStamp does not include
413 // the time, where here it does.
417 ),
423 ),
427 ),
431 ),
436 /* can't use a range, as it skips... */
447 ),
448 ),
456 ),
457 /* Pixel(X|Y)Dimension are rather useless, but for
458 * completeness since we do it with exif.
459 */
464 ),
469 ),
476 ),
483 ),
489 ),
490 // Note, 6 is not valid SensingMethod.
498 ),
505 ),
509 ),
510 // This tag should perhaps be displayed to user better.
515 ),
522 ),
527 ),
531 ),
537 ),
538 ),
543 ),
548 ),
554 ),
555 /* this prop should not be used in XMP. dc:rights is the correct prop */
559 ),
564 ),
568 ),
573 ),
578 ),
582 ),
586 ),
587 /**** Do not extract this property
588 * It interferes with auto exif rotation.
589 * 'Orientation' => array(
590 * 'map_group' => 'exif',
591 * 'mode' => XMPReader::MODE_SIMPLE,
592 * 'validate' => 'validateClosed',
593 * 'choices' => array( '1' => true, '2' => true, '3' => true, '4' => true, 5 => true,
594 * '6' => true, '7' => true, '8' => true ),
595 *),
596 ******/
602 ),
608 ),
613 ),
618 ),
624 ),
629 ),
633 ),
634 /* ignore TransferFunction */
639 ),
644 ),
649 ),
654 ),
660 ),
661 /********
662 * Disable extracting this property (bug 31944)
663 * Several files have a string instead of a Seq
664 * for this property. XMPReader doesn't handle
665 * mismatched types very gracefully (it marks
666 * the entire file as invalid, instead of just
667 * the relavent prop). Since this prop
668 * doesn't communicate all that useful information
669 * just disable this prop for now, until such
670 * XMPReader is more graceful (bug 32172)
671 * 'YCbCrSubSampling' => array(
672 * 'map_group' => 'exif',
673 * 'mode' => XMPReader::MODE_SEQ,
674 * 'validate' => 'validateClosed',
675 * 'choices' => array( '1' => true, '2' => true ),
676 * ),
677 */
678 ),
683 ),
687 ),
692 ),
693 ),
699 ),
704 ),
709 ),
714 ),
719 ),
722 // Note, not mapped with other date properties, as this type of date is
723 // non-specific: "A point or period of time associated with an event in
724 // the lifecycle of the resource"
728 ),
729 /* Do not extract dc:format, as we've got better ways to determine MIME type */
734 ),
740 ),
745 ),
746 // for related images/resources
751 ),
756 ),
757 // Note: source is not mapped with iptc source, since iptc
758 // source describes the source of the image in terms of a person
759 // who provided the image, where this is to describe an image that the
760 // current one is based on.
765 ),
770 ),
775 ),
776 ),
783 ),
788 ),
792 ),
796 ),
802 ),
806 // map_name to be consistent with other date names.
809 ),
813 ),
818 ),
819 ),
825 ),
831 ),
836 ),
837 // this seems similar to dc:rights.
841 ),
845 ),
846 ),
847 // XMP media management.
849 // if we extract the exif UniqueImageID, might
850 // as well do this too.
854 ),
855 // It might also be useful to do xmpMM:LastURL
856 // and xmpMM:DerivedFrom as you can potentially,
857 // get the url of this document/source for this
858 // document. However whats more likely is you'd
859 // get a file:// url for the path of the doc,
860 // which is somewhat of a privacy issue.
861 ),
867 ),
872 ),
877 ),
882 ),
883 ),
884 //Note, this property affects how jpeg metadata is extracted.
889 ),
890 ),
891 /* Note, in iptc schemas, the legacy properties are denoted
892 * as deprecated, since other properties should used instead,
893 * and properties marked as deprecated in the standard are
894 * are marked as general here as they don't have replacements
895 */
901 ),
906 ),
911 ),
914 // marking as deprecated as the xmp prop preferred
918 // note this prop is an XMP, not IPTC date
919 ),
924 ),
929 ),
934 ),
936 /* This corresponds with 2:85
937 * By-line Title, which needs to be
938 * handled weirdly to correspond
939 * with iptc/exif. */
942 ),
946 ),
950 ),
954 ),
956 // Note, this prop is deprecated, but in general
957 // group since it doesn't have a replacement.
961 ),
966 ),
970 ),
971 ),
977 ),
981 ),
982 // Note, this is a six digit code.
983 // See: http://cv.iptc.org/newscodes/scene/
984 // Since these aren't really all that common,
985 // we just show the number.
991 ),
992 /* Note: SubjectCode should be an 8 ascii digits.
993 * it is not really an integer (has leading 0's,
994 * cannot have a +/- sign), but validateInteger
995 * will let it through.
996 */
1002 ),
1007 ),
1009 /* Note this maps to 2:118 in iim
1010 * (Contact) field. However those field
1011 * types are slightly different - 2:118
1012 * is free form text field, where this
1013 * is more structured.
1014 */
1027 ),
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1058 ),
1063 ),
1068 ),
1069 /* End contact info struct properties */
1070 ),
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1080 ),
1084 ),
1090 ),
1096 ),
1097 // LocationShown and LocationCreated are handled
1098 // specially because they are hierarchical, but we
1099 // also want to merge with the old non-hierarchical.
1110 ),
1111 ),
1122 ),
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1128 ),
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1139 ),
1145 ),
1150 ),
1155 ),
1157 /* Other props that might be interesting but
1158 * Not currently extracted:
1159 * ArtworkOrObject, (info about objects in picture)
1160 * DigitalSourceType
1161 * RegistryId
1162 */
1163 ),
1165 /* Plus props we might want to consider:
1166 * (Note: some of these have unclear/incomplete definitions
1167 * from the iptc4xmp standard).
1168 * ImageSupplier (kind of like iptc source field)
1169 * ImageSupplierId (id code for image from supplier)
1170 * CopyrightOwner
1171 * ImageCreator
1172 * Licensor
1173 * Various model release fields
1174 * Property release fields.
1175 */
1176 );
1177 }