3 * Copyright (C) 2008 - 2009 The Geeqie Team
5 * Author: Vladimir Nadvornik
7 * This software is released under the GNU General Public License (GNU GPL).
8 * Please read the included file COPYING for more information.
9 * This software comes with no warranty of any kind, use at your own risk!
16 #include <exiv2/image.hpp>
17 #include <exiv2/exif.hpp>
20 // EXIV2_TEST_VERSION is defined in Exiv2 0.15 and newer.
21 #ifndef EXIV2_TEST_VERSION
22 # define EXIV2_TEST_VERSION(major,minor,patch) \
23 ( EXIV2_VERSION >= EXIV2_MAKE_VERSION(major,minor,patch) )
27 #include <sys/types.h>
33 #if !EXIV2_TEST_VERSION(0,17,90)
34 #include <exiv2/tiffparser.hpp>
35 #include <exiv2/tiffcomposite.hpp>
36 #include <exiv2/tiffvisitor.hpp>
37 #include <exiv2/tiffimage.hpp>
38 #include <exiv2/cr2image.hpp>
39 #include <exiv2/crwimage.hpp>
40 #if EXIV2_TEST_VERSION(0,16,0)
41 #include <exiv2/orfimage.hpp>
43 #if EXIV2_TEST_VERSION(0,13,0)
44 #include <exiv2/rafimage.hpp>
46 #include <exiv2/futils.hpp>
48 #include <exiv2/preview.hpp>
51 #if EXIV2_TEST_VERSION(0,17,0)
52 #include <exiv2/convert.hpp>
53 #include <exiv2/xmpsidecar.hpp>
62 #include "filefilter.h"
63 #include "ui_fileops.h"
68 typedef struct _AltKey AltKey;
73 const gchar *exif_key;
74 const gchar *iptc_key;
77 /* this is a list of keys that should be converted, even with the older Exiv2 which does not support it directly */
78 static const AltKey alt_keys[] = {
79 {"Xmp.tiff.Orientation", "Exif.Image.Orientation", NULL},
80 {"Xmp.dc.title", NULL, "Iptc.Application2.ObjectName" },
81 {"Xmp.photoshop.Urgency", NULL, "Iptc.Application2.Urgency" },
82 {"Xmp.photoshop.Category", NULL, "Iptc.Application2.Category" },
83 {"Xmp.photoshop.SupplementalCategory", NULL, "Iptc.Application2.SuppCategory" },
84 {"Xmp.dc.subject", NULL, "Iptc.Application2.Keywords" },
85 {"Xmp.iptc.Location", NULL, "Iptc.Application2.LocationName" },
86 {"Xmp.photoshop.Instruction", NULL, "Iptc.Application2.SpecialInstructions" },
87 {"Xmp.photoshop.DateCreated", NULL, "Iptc.Application2.DateCreated" },
88 {"Xmp.dc.creator", NULL, "Iptc.Application2.Byline" },
89 {"Xmp.photoshop.AuthorsPosition", NULL, "Iptc.Application2.BylineTitle" },
90 {"Xmp.photoshop.City", NULL, "Iptc.Application2.City" },
91 {"Xmp.photoshop.State", NULL, "Iptc.Application2.ProvinceState" },
92 {"Xmp.iptc.CountryCode", NULL, "Iptc.Application2.CountryCode" },
93 {"Xmp.photoshop.Country", NULL, "Iptc.Application2.CountryName" },
94 {"Xmp.photoshop.TransmissionReference", NULL, "Iptc.Application2.TransmissionReference"},
95 {"Xmp.photoshop.Headline", NULL, "Iptc.Application2.Headline" },
96 {"Xmp.photoshop.Credit", NULL, "Iptc.Application2.Credit" },
97 {"Xmp.photoshop.Source", NULL, "Iptc.Application2.Source" },
98 {"Xmp.dc.rights", NULL, "Iptc.Application2.Copyright" },
99 {"Xmp.dc.description", NULL, "Iptc.Application2.Caption" },
100 {"Xmp.photoshop.CaptionWriter", NULL, "Iptc.Application2.Writer" },
104 static void debug_exception(Exiv2::AnyError& e)
106 gchar *str = g_locale_from_utf8(e.what(), -1, NULL, NULL, NULL);
107 DEBUG_1("Exiv2: %s", str);
113 Exiv2::ExifData::const_iterator exifIter; /* for exif_get_next_item */
114 Exiv2::IptcData::const_iterator iptcIter; /* for exif_get_next_item */
115 #if EXIV2_TEST_VERSION(0,16,0)
116 Exiv2::XmpData::const_iterator xmpIter; /* for exif_get_next_item */
123 virtual void writeMetadata(gchar *path = NULL)
125 g_critical("Unsupported method of writing metadata");
128 virtual ExifData *original()
133 virtual Exiv2::Image *image() = 0;
135 virtual Exiv2::ExifData &exifData() = 0;
137 virtual Exiv2::IptcData &iptcData() = 0;
139 #if EXIV2_TEST_VERSION(0,16,0)
140 virtual Exiv2::XmpData &xmpData() = 0;
143 virtual void add_jpeg_color_profile(unsigned char *cp_data, guint cp_length) = 0;
145 virtual guchar *get_jpeg_color_profile(guint *data_len) = 0;
148 // This allows read-only access to the original metadata
149 struct _ExifDataOriginal : public _ExifData
152 Exiv2::Image::AutoPtr image_;
154 /* the icc profile in jpeg is not technically exif - store it here */
155 unsigned char *cp_data_;
159 Exiv2::ExifData emptyExifData_;
160 Exiv2::IptcData emptyIptcData_;
161 #if EXIV2_TEST_VERSION(0,16,0)
162 Exiv2::XmpData emptyXmpData_;
166 _ExifDataOriginal(Exiv2::Image::AutoPtr image)
174 _ExifDataOriginal(gchar *path)
180 gchar *pathl = path_from_utf8(path);
183 image_ = Exiv2::ImageFactory::open(pathl);
184 // g_assert (image.get() != 0);
185 image_->readMetadata();
187 #if EXIV2_TEST_VERSION(0,16,0)
188 if (image_->mimeType() == "application/rdf+xml")
190 //Exiv2 sidecar converts xmp to exif and iptc, we don't want it.
191 image_->clearExifData();
192 image_->clearIptcData();
196 #if EXIV2_TEST_VERSION(0,14,0)
197 if (image_->mimeType() == "image/jpeg")
199 /* try to get jpeg color profile */
200 Exiv2::BasicIo &io = image_->io();
201 gint open = io.isopen();
202 if (!open) io.open();
205 unsigned char *mapped = (unsigned char*)io.mmap();
206 if (mapped) exif_jpeg_parse_color(this, mapped, io.size());
209 if (!open) io.close();
213 catch (Exiv2::AnyError& e)
220 virtual ~_ExifDataOriginal()
222 if (cp_data_) g_free(cp_data_);
225 virtual Exiv2::Image *image()
227 if (!valid_) return NULL;
231 virtual Exiv2::ExifData &exifData ()
233 if (!valid_) return emptyExifData_;
234 return image_->exifData();
237 virtual Exiv2::IptcData &iptcData ()
239 if (!valid_) return emptyIptcData_;
240 return image_->iptcData();
243 #if EXIV2_TEST_VERSION(0,16,0)
244 virtual Exiv2::XmpData &xmpData ()
246 if (!valid_) return emptyXmpData_;
247 return image_->xmpData();
251 virtual void add_jpeg_color_profile(unsigned char *cp_data, guint cp_length)
253 if (cp_data_) g_free(cp_data_);
255 cp_length_ = cp_length;
258 virtual guchar *get_jpeg_color_profile(guint *data_len)
262 if (data_len) *data_len = cp_length_;
263 return (unsigned char *) g_memdup(cp_data_, cp_length_);
270 static void _ExifDataProcessed_update_xmp(gpointer key, gpointer value, gpointer data);
273 // This allows read-write access to the metadata
274 struct _ExifDataProcessed : public _ExifData
277 _ExifDataOriginal *imageData_;
278 _ExifDataOriginal *sidecarData_;
280 Exiv2::ExifData exifData_;
281 Exiv2::IptcData iptcData_;
282 #if EXIV2_TEST_VERSION(0,16,0)
283 Exiv2::XmpData xmpData_;
287 _ExifDataProcessed(gchar *path, gchar *sidecar_path, GHashTable *modified_xmp)
289 imageData_ = new _ExifDataOriginal(path);
291 #if EXIV2_TEST_VERSION(0,16,0)
294 sidecarData_ = new _ExifDataOriginal(sidecar_path);
295 xmpData_ = sidecarData_->xmpData();
299 xmpData_ = imageData_->xmpData();
303 exifData_ = imageData_->exifData();
304 iptcData_ = imageData_->iptcData();
305 #if EXIV2_TEST_VERSION(0,17,0)
308 syncExifWithXmp(exifData_, xmpData_);
312 DEBUG_1("Exiv2: Catching bug\n");
317 g_hash_table_foreach(modified_xmp, _ExifDataProcessed_update_xmp, this);
321 virtual ~_ExifDataProcessed()
323 if (imageData_) delete imageData_;
324 if (sidecarData_) delete sidecarData_;
327 virtual ExifData *original()
332 virtual void writeMetadata(gchar *path = NULL)
336 #if EXIV2_TEST_VERSION(0,17,0)
337 if (options->metadata.save_legacy_IPTC)
338 copyXmpToIptc(xmpData_, iptcData_);
342 copyXmpToExif(xmpData_, exifData_);
344 Exiv2::Image *image = imageData_->image();
346 if (!image) Exiv2::Error(21);
347 image->setExifData(exifData_);
348 image->setIptcData(iptcData_);
349 #if EXIV2_TEST_VERSION(0,16,0)
350 image->setXmpData(xmpData_);
352 image->writeMetadata();
356 #if EXIV2_TEST_VERSION(0,17,0)
357 gchar *pathl = path_from_utf8(path);;
359 Exiv2::Image::AutoPtr sidecar = Exiv2::ImageFactory::create(Exiv2::ImageType::xmp, pathl);
363 sidecar->setXmpData(xmpData_);
364 sidecar->writeMetadata();
366 throw Exiv2::Error(3, "xmp");
371 virtual Exiv2::Image *image()
373 return imageData_->image();
376 virtual Exiv2::ExifData &exifData ()
381 virtual Exiv2::IptcData &iptcData ()
386 #if EXIV2_TEST_VERSION(0,16,0)
387 virtual Exiv2::XmpData &xmpData ()
393 virtual void add_jpeg_color_profile(unsigned char *cp_data, guint cp_length)
395 imageData_->add_jpeg_color_profile(cp_data, cp_length);
398 virtual guchar *get_jpeg_color_profile(guint *data_len)
400 return imageData_->get_jpeg_color_profile(data_len);
412 #ifdef EXV_ENABLE_NLS
413 bind_textdomain_codeset (EXV_PACKAGE, "UTF-8");
419 static void _ExifDataProcessed_update_xmp(gpointer key, gpointer value, gpointer data)
421 exif_update_metadata((ExifData *)data, (gchar *)key, (GList *)value);
424 ExifData *exif_read(gchar *path, gchar *sidecar_path, GHashTable *modified_xmp)
426 DEBUG_1("exif read %s, sidecar: %s", path, sidecar_path ? sidecar_path : "-");
428 return new _ExifDataProcessed(path, sidecar_path, modified_xmp);
430 catch (Exiv2::AnyError& e) {
437 gboolean exif_write(ExifData *exif)
440 exif->writeMetadata();
443 catch (Exiv2::AnyError& e) {
449 gboolean exif_write_sidecar(ExifData *exif, gchar *path)
452 exif->writeMetadata(path);
455 catch (Exiv2::AnyError& e) {
463 void exif_free(ExifData *exif)
466 g_assert(dynamic_cast<_ExifDataProcessed *>(exif)); // this should not be called on ExifDataOriginal
470 ExifData *exif_get_original(ExifData *exif)
472 return exif->original();
476 ExifItem *exif_get_item(ExifData *exif, const gchar *key)
479 Exiv2::Metadatum *item = NULL;
481 Exiv2::ExifKey ekey(key);
482 Exiv2::ExifData::iterator pos = exif->exifData().findKey(ekey);
483 if (pos == exif->exifData().end()) return NULL;
486 catch (Exiv2::AnyError& e) {
488 Exiv2::IptcKey ekey(key);
489 Exiv2::IptcData::iterator pos = exif->iptcData().findKey(ekey);
490 if (pos == exif->iptcData().end()) return NULL;
493 catch (Exiv2::AnyError& e) {
494 #if EXIV2_TEST_VERSION(0,16,0)
495 Exiv2::XmpKey ekey(key);
496 Exiv2::XmpData::iterator pos = exif->xmpData().findKey(ekey);
497 if (pos == exif->xmpData().end()) return NULL;
502 return (ExifItem *)item;
504 catch (Exiv2::AnyError& e) {
510 ExifItem *exif_add_item(ExifData *exif, const gchar *key)
513 Exiv2::Metadatum *item = NULL;
515 Exiv2::ExifKey ekey(key);
516 exif->exifData().add(ekey, NULL);
517 Exiv2::ExifData::iterator pos = exif->exifData().end(); // a hack, there should be a better way to get the currently added item
521 catch (Exiv2::AnyError& e) {
523 Exiv2::IptcKey ekey(key);
524 exif->iptcData().add(ekey, NULL);
525 Exiv2::IptcData::iterator pos = exif->iptcData().end();
529 catch (Exiv2::AnyError& e) {
530 #if EXIV2_TEST_VERSION(0,16,0)
531 Exiv2::XmpKey ekey(key);
532 exif->xmpData().add(ekey, NULL);
533 Exiv2::XmpData::iterator pos = exif->xmpData().end();
539 return (ExifItem *)item;
541 catch (Exiv2::AnyError& e) {
548 ExifItem *exif_get_first_item(ExifData *exif)
551 exif->exifIter = exif->exifData().begin();
552 exif->iptcIter = exif->iptcData().begin();
553 #if EXIV2_TEST_VERSION(0,16,0)
554 exif->xmpIter = exif->xmpData().begin();
556 if (exif->exifIter != exif->exifData().end())
558 const Exiv2::Metadatum *item = &*exif->exifIter;
560 return (ExifItem *)item;
562 if (exif->iptcIter != exif->iptcData().end())
564 const Exiv2::Metadatum *item = &*exif->iptcIter;
566 return (ExifItem *)item;
568 #if EXIV2_TEST_VERSION(0,16,0)
569 if (exif->xmpIter != exif->xmpData().end())
571 const Exiv2::Metadatum *item = &*exif->xmpIter;
573 return (ExifItem *)item;
579 catch (Exiv2::AnyError& e) {
585 ExifItem *exif_get_next_item(ExifData *exif)
588 if (exif->exifIter != exif->exifData().end())
590 const Exiv2::Metadatum *item = &*exif->exifIter;
592 return (ExifItem *)item;
594 if (exif->iptcIter != exif->iptcData().end())
596 const Exiv2::Metadatum *item = &*exif->iptcIter;
598 return (ExifItem *)item;
600 #if EXIV2_TEST_VERSION(0,16,0)
601 if (exif->xmpIter != exif->xmpData().end())
603 const Exiv2::Metadatum *item = &*exif->xmpIter;
605 return (ExifItem *)item;
610 catch (Exiv2::AnyError& e) {
616 char *exif_item_get_tag_name(ExifItem *item)
619 if (!item) return NULL;
620 return g_strdup(((Exiv2::Metadatum *)item)->key().c_str());
622 catch (Exiv2::AnyError& e) {
628 guint exif_item_get_tag_id(ExifItem *item)
632 return ((Exiv2::Metadatum *)item)->tag();
634 catch (Exiv2::AnyError& e) {
640 guint exif_item_get_elements(ExifItem *item)
644 return ((Exiv2::Metadatum *)item)->count();
646 catch (Exiv2::AnyError& e) {
652 char *exif_item_get_data(ExifItem *item, guint *data_len)
656 Exiv2::Metadatum *md = (Exiv2::Metadatum *)item;
657 if (data_len) *data_len = md->size();
658 char *data = (char *)g_malloc(md->size());
659 long res = md->copy((Exiv2::byte *)data, Exiv2::littleEndian /* should not matter */);
660 g_assert(res == md->size());
663 catch (Exiv2::AnyError& e) {
669 char *exif_item_get_description(ExifItem *item)
672 if (!item) return NULL;
673 return utf8_validate_or_convert(((Exiv2::Metadatum *)item)->tagLabel().c_str());
675 catch (std::exception& e) {
676 // debug_exception(e);
682 invalidTypeId, unsignedByte, asciiString, unsignedShort,
683 unsignedLong, unsignedRational, signedByte, undefined,
684 signedShort, signedLong, signedRational, string,
685 date, time, comment, directory,
686 xmpText, xmpAlt, xmpBag, xmpSeq,
690 static guint format_id_trans_tbl [] = {
692 EXIF_FORMAT_BYTE_UNSIGNED,
694 EXIF_FORMAT_SHORT_UNSIGNED,
695 EXIF_FORMAT_LONG_UNSIGNED,
696 EXIF_FORMAT_RATIONAL_UNSIGNED,
698 EXIF_FORMAT_UNDEFINED,
701 EXIF_FORMAT_RATIONAL,
705 EXIF_FORMAT_UNDEFINED,
714 guint exif_item_get_format_id(ExifItem *item)
717 if (!item) return EXIF_FORMAT_UNKNOWN;
718 guint id = ((Exiv2::Metadatum *)item)->typeId();
719 if (id >= (sizeof(format_id_trans_tbl) / sizeof(format_id_trans_tbl[0])) ) return EXIF_FORMAT_UNKNOWN;
720 return format_id_trans_tbl[id];
722 catch (Exiv2::AnyError& e) {
724 return EXIF_FORMAT_UNKNOWN;
728 const char *exif_item_get_format_name(ExifItem *item, gboolean brief)
731 if (!item) return NULL;
732 return ((Exiv2::Metadatum *)item)->typeName();
734 catch (Exiv2::AnyError& e) {
741 gchar *exif_item_get_data_as_text(ExifItem *item)
744 if (!item) return NULL;
745 Exiv2::Metadatum *metadatum = (Exiv2::Metadatum *)item;
746 #if EXIV2_TEST_VERSION(0,17,0)
747 return utf8_validate_or_convert(metadatum->print().c_str());
749 std::stringstream str;
750 Exiv2::Exifdatum *exifdatum;
751 Exiv2::Iptcdatum *iptcdatum;
752 #if EXIV2_TEST_VERSION(0,16,0)
753 Exiv2::Xmpdatum *xmpdatum;
755 if ((exifdatum = dynamic_cast<Exiv2::Exifdatum *>(metadatum)))
757 else if ((iptcdatum = dynamic_cast<Exiv2::Iptcdatum *>(metadatum)))
759 #if EXIV2_TEST_VERSION(0,16,0)
760 else if ((xmpdatum = dynamic_cast<Exiv2::Xmpdatum *>(metadatum)))
764 return utf8_validate_or_convert(str.str().c_str());
767 catch (Exiv2::AnyError& e) {
772 gchar *exif_item_get_string(ExifItem *item, int idx)
775 if (!item) return NULL;
776 Exiv2::Metadatum *em = (Exiv2::Metadatum *)item;
777 #if EXIV2_TEST_VERSION(0,16,0)
778 std::string str = em->toString(idx);
780 std::string str = em->toString(); // FIXME
782 if (idx == 0 && str == "") str = em->toString();
783 if (str.length() > 5 && str.substr(0, 5) == "lang=")
785 std::string::size_type pos = str.find_first_of(' ');
786 if (pos != std::string::npos) str = str.substr(pos+1);
789 return utf8_validate_or_convert(str.c_str());
791 catch (Exiv2::AnyError& e) {
797 gint exif_item_get_integer(ExifItem *item, gint *value)
800 if (!item || exif_item_get_elements(item) == 0) return 0;
801 *value = ((Exiv2::Metadatum *)item)->toLong();
804 catch (Exiv2::AnyError& e) {
810 ExifRational *exif_item_get_rational(ExifItem *item, gint *sign, guint n)
813 if (!item) return NULL;
814 if (n >= exif_item_get_elements(item)) return NULL;
815 Exiv2::Rational v = ((Exiv2::Metadatum *)item)->toRational(n);
816 static ExifRational ret;
819 if (sign) *sign = (((Exiv2::Metadatum *)item)->typeId() == Exiv2::signedRational);
822 catch (Exiv2::AnyError& e) {
828 gchar *exif_get_tag_description_by_key(const gchar *key)
831 Exiv2::ExifKey ekey(key);
832 return utf8_validate_or_convert(ekey.tagLabel().c_str());
834 catch (Exiv2::AnyError& e) {
836 Exiv2::IptcKey ikey(key);
837 return utf8_validate_or_convert(ikey.tagLabel().c_str());
839 catch (Exiv2::AnyError& e) {
841 #if EXIV2_TEST_VERSION(0,16,0)
842 Exiv2::XmpKey xkey(key);
843 return utf8_validate_or_convert(xkey.tagLabel().c_str());
846 catch (Exiv2::AnyError& e) {
855 static const AltKey *find_alt_key(const gchar *xmp_key)
859 while (alt_keys[i].xmp_key)
861 if (strcmp(xmp_key, alt_keys[i].xmp_key) == 0) return &alt_keys[i];
867 static gint exif_update_metadata_simple(ExifData *exif, const gchar *key, const GList *values)
870 const GList *work = values;
873 Exiv2::ExifKey ekey(key);
875 Exiv2::ExifData::iterator pos = exif->exifData().findKey(ekey);
876 while (pos != exif->exifData().end())
878 exif->exifData().erase(pos);
879 pos = exif->exifData().findKey(ekey);
884 exif->exifData()[key] = (gchar *)work->data;
888 catch (Exiv2::AnyError& e) {
889 #if EXIV2_TEST_VERSION(0,16,0)
893 Exiv2::IptcKey ekey(key);
894 Exiv2::IptcData::iterator pos = exif->iptcData().findKey(ekey);
895 while (pos != exif->iptcData().end())
897 exif->iptcData().erase(pos);
898 pos = exif->iptcData().findKey(ekey);
903 exif->iptcData()[key] = (gchar *)work->data;
907 #if EXIV2_TEST_VERSION(0,16,0)
908 catch (Exiv2::AnyError& e) {
909 Exiv2::XmpKey ekey(key);
910 Exiv2::XmpData::iterator pos = exif->xmpData().findKey(ekey);
911 while (pos != exif->xmpData().end())
913 exif->xmpData().erase(pos);
914 pos = exif->xmpData().findKey(ekey);
919 exif->xmpData()[key] = (gchar *)work->data;
927 catch (Exiv2::AnyError& e) {
933 gint exif_update_metadata(ExifData *exif, const gchar *key, const GList *values)
935 gint ret = exif_update_metadata_simple(exif, key, values);
938 #if !EXIV2_TEST_VERSION(0,17,0)
939 TRUE || /* no conversion support */
941 !values || /* deleting item */
942 !ret /* writing to the explicitely given xmp tag failed */
945 /* deleted xmp metadatum can't be converted, we have to delete also the corresponding legacy tag */
946 /* if we can't write xmp, update at least the legacy tag */
947 const AltKey *alt_key = find_alt_key(key);
948 if (alt_key && alt_key->iptc_key)
949 ret = exif_update_metadata_simple(exif, alt_key->iptc_key, values);
951 if (alt_key && alt_key->exif_key)
952 ret = exif_update_metadata_simple(exif, alt_key->exif_key, values);
958 static GList *exif_add_value_to_glist(GList *list, Exiv2::Metadatum &item, MetadataFormat format, const Exiv2::ExifData *metadata)
960 #if EXIV2_TEST_VERSION(0,16,0)
961 Exiv2::TypeId id = item.typeId();
962 if (format == METADATA_FORMATTED ||
963 id == Exiv2::asciiString ||
964 id == Exiv2::undefined ||
965 id == Exiv2::string ||
968 id == Exiv2::xmpText ||
969 id == Exiv2::langAlt ||
974 /* read as a single entry */
977 if (format == METADATA_FORMATTED)
979 #if EXIV2_TEST_VERSION(0,17,0)
981 #if EXIV2_TEST_VERSION(0,18,0)
986 std::stringstream stream;
987 Exiv2::Exifdatum *exifdatum;
988 Exiv2::Iptcdatum *iptcdatum;
989 #if EXIV2_TEST_VERSION(0,16,0)
990 Exiv2::Xmpdatum *xmpdatum;
992 if ((exifdatum = dynamic_cast<Exiv2::Exifdatum *>(&item)))
993 stream << *exifdatum;
994 else if ((iptcdatum = dynamic_cast<Exiv2::Iptcdatum *>(&item)))
995 stream << *iptcdatum;
996 #if EXIV2_TEST_VERSION(0,16,0)
997 else if ((xmpdatum = dynamic_cast<Exiv2::Xmpdatum *>(&item)))
1002 if (str.length() > 1024)
1004 /* truncate very long strings, they cause problems in gui */
1011 str = item.toString();
1012 if (str.length() > 5 && str.substr(0, 5) == "lang=")
1014 std::string::size_type pos = str.find_first_of(' ');
1015 if (pos != std::string::npos) str = str.substr(pos+1);
1018 list = g_list_append(list, utf8_validate_or_convert(str.c_str()));
1019 #if EXIV2_TEST_VERSION(0,16,0)
1023 /* read as a list */
1025 for (i = 0; i < item.count(); i++)
1026 list = g_list_append(list, utf8_validate_or_convert(item.toString(i).c_str()));
1032 static GList *exif_get_metadata_simple(ExifData *exif, const gchar *key, MetadataFormat format)
1037 Exiv2::ExifKey ekey(key);
1038 Exiv2::ExifData::iterator pos = exif->exifData().findKey(ekey);
1039 if (pos != exif->exifData().end())
1040 list = exif_add_value_to_glist(list, *pos, format, &exif->exifData());
1043 catch (Exiv2::AnyError& e) {
1045 Exiv2::IptcKey ekey(key);
1046 Exiv2::IptcData::iterator pos = exif->iptcData().begin();
1047 while (pos != exif->iptcData().end())
1049 if (pos->key() == key)
1050 list = exif_add_value_to_glist(list, *pos, format, NULL);
1055 catch (Exiv2::AnyError& e) {
1056 #if EXIV2_TEST_VERSION(0,16,0)
1057 Exiv2::XmpKey ekey(key);
1058 Exiv2::XmpData::iterator pos = exif->xmpData().findKey(ekey);
1059 if (pos != exif->xmpData().end())
1060 list = exif_add_value_to_glist(list, *pos, format, NULL);
1065 catch (Exiv2::AnyError& e) {
1071 GList *exif_get_metadata(ExifData *exif, const gchar *key, MetadataFormat format)
1075 if (!key) return NULL;
1077 if (format == METADATA_FORMATTED)
1081 text = exif_get_formatted_by_key(exif, key, &key_valid);
1082 if (key_valid) return g_list_append(NULL, text);
1085 list = exif_get_metadata_simple(exif, key, format);
1087 /* the following code can be ifdefed out as soon as Exiv2 supports it */
1090 const AltKey *alt_key = find_alt_key(key);
1091 if (alt_key && alt_key->iptc_key)
1092 list = exif_get_metadata_simple(exif, alt_key->iptc_key, format);
1094 #if !EXIV2_TEST_VERSION(0,17,0)
1095 /* with older Exiv2 versions exif is not synced */
1096 if (!list && alt_key && alt_key->exif_key)
1097 list = exif_get_metadata_simple(exif, alt_key->exif_key, format);
1104 void exif_add_jpeg_color_profile(ExifData *exif, unsigned char *cp_data, guint cp_length)
1106 exif->add_jpeg_color_profile(cp_data, cp_length);
1109 guchar *exif_get_color_profile(ExifData *exif, guint *data_len)
1111 guchar *ret = exif->get_jpeg_color_profile(data_len);
1112 if (ret) return ret;
1114 ExifItem *prof_item = exif_get_item(exif, "Exif.Image.InterColorProfile");
1115 if (prof_item && exif_item_get_format_id(prof_item) == EXIF_FORMAT_UNDEFINED)
1116 ret = (guchar *)exif_item_get_data(prof_item, data_len);
1120 #if EXIV2_TEST_VERSION(0,17,90)
1122 guchar *exif_get_preview(ExifData *exif, guint *data_len, gint requested_width, gint requested_height)
1124 if (!exif) return NULL;
1126 if (!exif->image()) return NULL;
1128 const char* path = exif->image()->io().path().c_str();
1129 /* given image pathname, first do simple (and fast) file extension test */
1130 gboolean is_raw = filter_file_class(path, FORMAT_CLASS_RAWIMAGE);
1132 if (!is_raw && requested_width == 0) return NULL;
1136 Exiv2::PreviewManager pm(*exif->image());
1138 Exiv2::PreviewPropertiesList list = pm.getPreviewProperties();
1142 Exiv2::PreviewPropertiesList::iterator pos;
1143 Exiv2::PreviewPropertiesList::iterator last = --list.end();
1145 if (requested_width == 0)
1147 pos = last; // the largest
1154 if (pos->width_ >= (uint32_t)requested_width &&
1155 pos->height_ >= (uint32_t)requested_height) break;
1159 // we are not interested in smaller thumbnails in normal image formats - we can use full image instead
1162 if (pos->width_ < (uint32_t)requested_width || pos->height_ < (uint32_t)requested_height) return NULL;
1166 Exiv2::PreviewImage image = pm.getPreviewImage(*pos);
1168 Exiv2::DataBuf buf = image.copy();
1169 std::pair<Exiv2::byte*, long> p = buf.release();
1171 *data_len = p.second;
1176 catch (Exiv2::AnyError& e) {
1182 void exif_free_preview(guchar *buf)
1184 delete[] (Exiv2::byte*)buf;
1189 #if !EXIV2_TEST_VERSION(0,17,90)
1191 /* This is a dirty hack to support raw file preview, bassed on
1192 tiffparse.cpp from Exiv2 examples */
1197 RawFile(Exiv2::BasicIo &io);
1200 const Exiv2::Value *find(uint16_t tag, uint16_t group);
1202 unsigned long preview_offset();
1206 Exiv2::TiffComponent::AutoPtr rootDir;
1207 Exiv2::BasicIo &io_;
1208 const Exiv2::byte *map_data;
1210 unsigned long offset;
1213 typedef struct _UnmapData UnmapData;
1221 static GList *exif_unmap_list = 0;
1223 extern "C" guchar *exif_get_preview(ExifData *exif, guint *data_len, gint requested_width, gint requested_height)
1225 unsigned long offset;
1227 if (!exif) return NULL;
1228 if (!exif->image()) return NULL;
1230 const char* path = exif->image()->io().path().c_str();
1232 /* given image pathname, first do simple (and fast) file extension test */
1233 if (!filter_file_class(path, FORMAT_CLASS_RAWIMAGE)) return NULL;
1242 RawFile rf(exif->image()->io());
1243 offset = rf.preview_offset();
1244 DEBUG_1("%s: offset %lu", path, offset);
1246 fd = open(path, O_RDONLY);
1252 if (fstat(fd, &st) == -1)
1257 map_len = st.st_size;
1258 map_data = (guchar *) mmap(0, map_len, PROT_READ, MAP_PRIVATE, fd, 0);
1260 if (map_data == MAP_FAILED)
1264 *data_len = map_len - offset;
1265 ud = g_new(UnmapData, 1);
1266 ud->ptr = map_data + offset;
1267 ud->map_data = map_data;
1268 ud->map_len = map_len;
1270 exif_unmap_list = g_list_prepend(exif_unmap_list, ud);
1274 catch (Exiv2::AnyError& e) {
1281 void exif_free_preview(guchar *buf)
1283 GList *work = exif_unmap_list;
1287 UnmapData *ud = (UnmapData *)work->data;
1290 munmap(ud->map_data, ud->map_len);
1291 exif_unmap_list = g_list_remove_link(exif_unmap_list, work);
1297 g_assert_not_reached();
1300 using namespace Exiv2;
1302 RawFile::RawFile(BasicIo &io) : io_(io), map_data(NULL), map_len(0), offset(0)
1306 if (fstat(fd, &st) == -1)
1310 map_len = st.st_size;
1311 map_data = (Exiv2::byte *) mmap(0, map_len, PROT_READ, MAP_PRIVATE, fd, 0);
1312 if (map_data == MAP_FAILED)
1317 if (io.open() != 0) {
1318 throw Error(9, io.path(), strError());
1321 map_data = io.mmap();
1322 map_len = io.size();
1325 type = Exiv2::ImageFactory::getType(map_data, map_len);
1327 #if EXIV2_TEST_VERSION(0,16,0)
1328 TiffHeaderBase *tiffHeader = NULL;
1330 TiffHeade2 *tiffHeader = NULL;
1332 Cr2Header *cr2Header = NULL;
1335 case Exiv2::ImageType::tiff:
1336 tiffHeader = new TiffHeade2();
1338 case Exiv2::ImageType::cr2:
1339 cr2Header = new Cr2Header();
1341 #if EXIV2_TEST_VERSION(0,16,0)
1342 case Exiv2::ImageType::orf:
1343 tiffHeader = new OrfHeader();
1346 #if EXIV2_TEST_VERSION(0,13,0)
1347 case Exiv2::ImageType::raf:
1348 if (map_len < 84 + 4) throw Error(14);
1349 offset = getULong(map_data + 84, bigEndian);
1352 case Exiv2::ImageType::crw:
1354 // Parse the image, starting with a CIFF header component
1355 Exiv2::CiffHeader::AutoPtr parseTree(new Exiv2::CiffHeader);
1356 parseTree->read(map_data, map_len);
1357 CiffComponent *entry = parseTree->findComponent(0x2007, 0);
1358 if (entry) offset = entry->pData() - map_data;
1363 throw Error(3, "RAW");
1366 // process tiff-like formats
1368 TiffCompFactoryFct createFct = TiffCreator::create;
1370 rootDir = createFct(Tag::root, Group::none);
1371 if (0 == rootDir.get()) {
1372 throw Error(1, "No root element defined in TIFF structure");
1377 if (!tiffHeader->read(map_data, map_len)) throw Error(3, "TIFF");
1378 #if EXIV2_TEST_VERSION(0,16,0)
1379 rootDir->setStart(map_data + tiffHeader->offset());
1381 rootDir->setStart(map_data + tiffHeader->ifdOffset());
1387 rootDir->setStart(map_data + cr2Header->offset());
1390 TiffRwState::AutoPtr state(new TiffRwState(tiffHeader ? tiffHeader->byteOrder() : littleEndian, 0, createFct));
1392 TiffReader reader(map_data,
1397 rootDir->accept(reader);
1405 RawFile::~RawFile(void)
1411 const Value * RawFile::find(uint16_t tag, uint16_t group)
1413 TiffFinder finder(tag, group);
1414 rootDir->accept(finder);
1415 TiffEntryBase* te = dynamic_cast<TiffEntryBase*>(finder.result());
1418 DEBUG_1("(tag: %04x %04x) ", tag, group);
1419 return te->pValue();
1425 unsigned long RawFile::preview_offset(void)
1428 if (offset) return offset;
1430 if (type == Exiv2::ImageType::cr2)
1432 val = find(0x111, Group::ifd0);
1433 if (val) return val->toLong();
1438 val = find(0x201, Group::sub0_0);
1439 if (val) return val->toLong();
1441 val = find(0x201, Group::ifd0);
1442 if (val) return val->toLong();
1444 val = find(0x201, Group::ignr); // for PEF files, originally it was probably ifd2
1445 if (val) return val->toLong();
1447 val = find(0x111, Group::sub0_1); // dng
1448 if (val) return val->toLong();
1459 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */