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.subject", NULL, "Iptc.Application2.Keywords"},
81 {"Xmp.dc.description", NULL, "Iptc.Application2.Caption"},
88 Exiv2::ExifData::const_iterator exifIter; /* for exif_get_next_item */
89 Exiv2::IptcData::const_iterator iptcIter; /* for exif_get_next_item */
90 #if EXIV2_TEST_VERSION(0,16,0)
91 Exiv2::XmpData::const_iterator xmpIter; /* for exif_get_next_item */
98 virtual void writeMetadata(gchar *path = NULL)
100 g_critical("Unsupported method of writing metadata");
103 virtual ExifData *original()
108 virtual Exiv2::Image *image() = 0;
110 virtual Exiv2::ExifData &exifData() = 0;
112 virtual Exiv2::IptcData &iptcData() = 0;
114 #if EXIV2_TEST_VERSION(0,16,0)
115 virtual Exiv2::XmpData &xmpData() = 0;
118 virtual void add_jpeg_color_profile(unsigned char *cp_data, guint cp_length) = 0;
120 virtual guchar *get_jpeg_color_profile(guint *data_len) = 0;
123 // This allows read-only access to the original metadata
124 struct _ExifDataOriginal : public _ExifData
127 Exiv2::Image::AutoPtr image_;
129 /* the icc profile in jpeg is not technically exif - store it here */
130 unsigned char *cp_data_;
134 _ExifDataOriginal(Exiv2::Image::AutoPtr image)
141 _ExifDataOriginal(gchar *path)
145 gchar *pathl = path_from_utf8(path);
146 image_ = Exiv2::ImageFactory::open(pathl);
148 // g_assert (image.get() != 0);
149 image_->readMetadata();
151 #if EXIV2_TEST_VERSION(0,16,0)
152 if (image_->mimeType() == "application/rdf+xml")
154 //Exiv2 sidecar converts xmp to exif and iptc, we don't want it.
155 image_->clearExifData();
156 image_->clearIptcData();
160 #if EXIV2_TEST_VERSION(0,14,0)
161 if (image_->mimeType() == "image/jpeg")
163 /* try to get jpeg color profile */
164 Exiv2::BasicIo &io = image_->io();
165 gint open = io.isopen();
166 if (!open) io.open();
169 unsigned char *mapped = (unsigned char*)io.mmap();
170 if (mapped) exif_jpeg_parse_color(this, mapped, io.size());
173 if (!open) io.close();
178 virtual ~_ExifDataOriginal()
180 if (cp_data_) g_free(cp_data_);
183 virtual Exiv2::Image *image()
188 virtual Exiv2::ExifData &exifData ()
190 return image_->exifData();
193 virtual Exiv2::IptcData &iptcData ()
195 return image_->iptcData();
198 #if EXIV2_TEST_VERSION(0,16,0)
199 virtual Exiv2::XmpData &xmpData ()
201 return image_->xmpData();
205 virtual void add_jpeg_color_profile(unsigned char *cp_data, guint cp_length)
207 if (cp_data_) g_free(cp_data_);
209 cp_length_ = cp_length;
212 virtual guchar *get_jpeg_color_profile(guint *data_len)
216 if (data_len) *data_len = cp_length_;
217 return (unsigned char *) g_memdup(cp_data_, cp_length_);
224 static void _ExifDataProcessed_update_xmp(gpointer key, gpointer value, gpointer data);
227 // This allows read-write access to the metadata
228 struct _ExifDataProcessed : public _ExifData
231 _ExifDataOriginal *imageData_;
232 _ExifDataOriginal *sidecarData_;
234 Exiv2::ExifData exifData_;
235 Exiv2::IptcData iptcData_;
236 #if EXIV2_TEST_VERSION(0,16,0)
237 Exiv2::XmpData xmpData_;
241 _ExifDataProcessed(gchar *path, gchar *sidecar_path, GHashTable *modified_xmp)
243 imageData_ = new _ExifDataOriginal(path);
245 #if EXIV2_TEST_VERSION(0,16,0)
248 sidecarData_ = new _ExifDataOriginal(sidecar_path);
249 xmpData_ = sidecarData_->xmpData();
253 xmpData_ = imageData_->xmpData();
257 exifData_ = imageData_->exifData();
258 iptcData_ = imageData_->iptcData();
259 #if EXIV2_TEST_VERSION(0,17,0)
260 syncExifWithXmp(exifData_, xmpData_);
264 g_hash_table_foreach(modified_xmp, _ExifDataProcessed_update_xmp, this);
268 virtual ~_ExifDataProcessed()
270 if (imageData_) delete imageData_;
271 if (sidecarData_) delete sidecarData_;
274 virtual ExifData *original()
279 virtual void writeMetadata(gchar *path = NULL)
283 #if EXIV2_TEST_VERSION(0,17,0)
284 if (options->metadata.save_legacy_IPTC)
285 copyXmpToIptc(xmpData_, iptcData_);
289 copyXmpToExif(xmpData_, exifData_);
291 imageData_->image()->setExifData(exifData_);
292 imageData_->image()->setIptcData(iptcData_);
293 #if EXIV2_TEST_VERSION(0,16,0)
294 imageData_->image()->setXmpData(xmpData_);
296 imageData_->image()->writeMetadata();
300 #if EXIV2_TEST_VERSION(0,17,0)
301 gchar *pathl = path_from_utf8(path);;
303 Exiv2::Image::AutoPtr sidecar = Exiv2::ImageFactory::create(Exiv2::ImageType::xmp, pathl);
307 sidecar->setXmpData(xmpData_);
308 sidecar->writeMetadata();
310 throw Exiv2::Error(3, "xmp");
315 virtual Exiv2::Image *image()
317 return imageData_->image();
320 virtual Exiv2::ExifData &exifData ()
325 virtual Exiv2::IptcData &iptcData ()
330 #if EXIV2_TEST_VERSION(0,16,0)
331 virtual Exiv2::XmpData &xmpData ()
337 virtual void add_jpeg_color_profile(unsigned char *cp_data, guint cp_length)
339 imageData_->add_jpeg_color_profile(cp_data, cp_length);
342 virtual guchar *get_jpeg_color_profile(guint *data_len)
344 return imageData_->get_jpeg_color_profile(data_len);
356 #ifdef EXV_ENABLE_NLS
357 bind_textdomain_codeset (EXV_PACKAGE, "UTF-8");
363 static void _ExifDataProcessed_update_xmp(gpointer key, gpointer value, gpointer data)
365 exif_update_metadata((ExifData *)data, (gchar *)key, (GList *)value);
368 ExifData *exif_read(gchar *path, gchar *sidecar_path, GHashTable *modified_xmp)
370 DEBUG_1("exif read %s, sidecar: %s", path, sidecar_path ? sidecar_path : "-");
372 return new _ExifDataProcessed(path, sidecar_path, modified_xmp);
374 catch (Exiv2::AnyError& e) {
375 std::cout << "Caught Exiv2 exception '" << e << "'\n";
381 gboolean exif_write(ExifData *exif)
384 exif->writeMetadata();
387 catch (Exiv2::AnyError& e) {
388 std::cout << "Caught Exiv2 exception '" << e << "'\n";
393 gboolean exif_write_sidecar(ExifData *exif, gchar *path)
396 exif->writeMetadata(path);
399 catch (Exiv2::AnyError& e) {
400 std::cout << "Caught Exiv2 exception '" << e << "'\n";
407 void exif_free(ExifData *exif)
410 g_assert(dynamic_cast<_ExifDataProcessed *>(exif)); // this should not be called on ExifDataOriginal
414 ExifData *exif_get_original(ExifData *exif)
416 return exif->original();
420 ExifItem *exif_get_item(ExifData *exif, const gchar *key)
423 Exiv2::Metadatum *item = NULL;
425 Exiv2::ExifKey ekey(key);
426 Exiv2::ExifData::iterator pos = exif->exifData().findKey(ekey);
427 if (pos == exif->exifData().end()) return NULL;
430 catch (Exiv2::AnyError& e) {
432 Exiv2::IptcKey ekey(key);
433 Exiv2::IptcData::iterator pos = exif->iptcData().findKey(ekey);
434 if (pos == exif->iptcData().end()) return NULL;
437 catch (Exiv2::AnyError& e) {
438 #if EXIV2_TEST_VERSION(0,16,0)
439 Exiv2::XmpKey ekey(key);
440 Exiv2::XmpData::iterator pos = exif->xmpData().findKey(ekey);
441 if (pos == exif->xmpData().end()) return NULL;
446 return (ExifItem *)item;
448 catch (Exiv2::AnyError& e) {
449 std::cout << "Caught Exiv2 exception '" << e << "'\n";
454 ExifItem *exif_add_item(ExifData *exif, const gchar *key)
457 Exiv2::Metadatum *item = NULL;
459 Exiv2::ExifKey ekey(key);
460 exif->exifData().add(ekey, NULL);
461 Exiv2::ExifData::iterator pos = exif->exifData().end(); // a hack, there should be a better way to get the currently added item
465 catch (Exiv2::AnyError& e) {
467 Exiv2::IptcKey ekey(key);
468 exif->iptcData().add(ekey, NULL);
469 Exiv2::IptcData::iterator pos = exif->iptcData().end();
473 catch (Exiv2::AnyError& e) {
474 #if EXIV2_TEST_VERSION(0,16,0)
475 Exiv2::XmpKey ekey(key);
476 exif->xmpData().add(ekey, NULL);
477 Exiv2::XmpData::iterator pos = exif->xmpData().end();
483 return (ExifItem *)item;
485 catch (Exiv2::AnyError& e) {
486 std::cout << "Caught Exiv2 exception '" << e << "'\n";
492 ExifItem *exif_get_first_item(ExifData *exif)
495 exif->exifIter = exif->exifData().begin();
496 exif->iptcIter = exif->iptcData().begin();
497 #if EXIV2_TEST_VERSION(0,16,0)
498 exif->xmpIter = exif->xmpData().begin();
500 if (exif->exifIter != exif->exifData().end())
502 const Exiv2::Metadatum *item = &*exif->exifIter;
504 return (ExifItem *)item;
506 if (exif->iptcIter != exif->iptcData().end())
508 const Exiv2::Metadatum *item = &*exif->iptcIter;
510 return (ExifItem *)item;
512 #if EXIV2_TEST_VERSION(0,16,0)
513 if (exif->xmpIter != exif->xmpData().end())
515 const Exiv2::Metadatum *item = &*exif->xmpIter;
517 return (ExifItem *)item;
523 catch (Exiv2::AnyError& e) {
524 std::cout << "Caught Exiv2 exception '" << e << "'\n";
529 ExifItem *exif_get_next_item(ExifData *exif)
532 if (exif->exifIter != exif->exifData().end())
534 const Exiv2::Metadatum *item = &*exif->exifIter;
536 return (ExifItem *)item;
538 if (exif->iptcIter != exif->iptcData().end())
540 const Exiv2::Metadatum *item = &*exif->iptcIter;
542 return (ExifItem *)item;
544 #if EXIV2_TEST_VERSION(0,16,0)
545 if (exif->xmpIter != exif->xmpData().end())
547 const Exiv2::Metadatum *item = &*exif->xmpIter;
549 return (ExifItem *)item;
554 catch (Exiv2::AnyError& e) {
555 std::cout << "Caught Exiv2 exception '" << e << "'\n";
560 char *exif_item_get_tag_name(ExifItem *item)
563 if (!item) return NULL;
564 return g_strdup(((Exiv2::Metadatum *)item)->key().c_str());
566 catch (Exiv2::AnyError& e) {
567 std::cout << "Caught Exiv2 exception '" << e << "'\n";
572 guint exif_item_get_tag_id(ExifItem *item)
576 return ((Exiv2::Metadatum *)item)->tag();
578 catch (Exiv2::AnyError& e) {
579 std::cout << "Caught Exiv2 exception '" << e << "'\n";
584 guint exif_item_get_elements(ExifItem *item)
588 return ((Exiv2::Metadatum *)item)->count();
590 catch (Exiv2::AnyError& e) {
591 std::cout << "Caught Exiv2 exception '" << e << "'\n";
596 char *exif_item_get_data(ExifItem *item, guint *data_len)
600 Exiv2::Metadatum *md = (Exiv2::Metadatum *)item;
601 if (data_len) *data_len = md->size();
602 char *data = (char *)g_malloc(md->size());
603 long res = md->copy((Exiv2::byte *)data, Exiv2::littleEndian /* should not matter */);
604 g_assert(res == md->size());
607 catch (Exiv2::AnyError& e) {
608 std::cout << "Caught Exiv2 exception '" << e << "'\n";
613 char *exif_item_get_description(ExifItem *item)
616 if (!item) return NULL;
617 return utf8_validate_or_convert(((Exiv2::Metadatum *)item)->tagLabel().c_str());
619 catch (std::exception& e) {
620 // std::cout << "Caught Exiv2 exception '" << e << "'\n";
626 invalidTypeId, unsignedByte, asciiString, unsignedShort,
627 unsignedLong, unsignedRational, signedByte, undefined,
628 signedShort, signedLong, signedRational, string,
629 date, time, comment, directory,
630 xmpText, xmpAlt, xmpBag, xmpSeq,
634 static guint format_id_trans_tbl [] = {
636 EXIF_FORMAT_BYTE_UNSIGNED,
638 EXIF_FORMAT_SHORT_UNSIGNED,
639 EXIF_FORMAT_LONG_UNSIGNED,
640 EXIF_FORMAT_RATIONAL_UNSIGNED,
642 EXIF_FORMAT_UNDEFINED,
645 EXIF_FORMAT_RATIONAL,
649 EXIF_FORMAT_UNDEFINED,
658 guint exif_item_get_format_id(ExifItem *item)
661 if (!item) return EXIF_FORMAT_UNKNOWN;
662 guint id = ((Exiv2::Metadatum *)item)->typeId();
663 if (id >= (sizeof(format_id_trans_tbl) / sizeof(format_id_trans_tbl[0])) ) return EXIF_FORMAT_UNKNOWN;
664 return format_id_trans_tbl[id];
666 catch (Exiv2::AnyError& e) {
667 std::cout << "Caught Exiv2 exception '" << e << "'\n";
668 return EXIF_FORMAT_UNKNOWN;
672 const char *exif_item_get_format_name(ExifItem *item, gboolean brief)
675 if (!item) return NULL;
676 return ((Exiv2::Metadatum *)item)->typeName();
678 catch (Exiv2::AnyError& e) {
679 std::cout << "Caught Exiv2 exception '" << e << "'\n";
685 gchar *exif_item_get_data_as_text(ExifItem *item)
688 if (!item) return NULL;
689 Exiv2::Metadatum *metadatum = (Exiv2::Metadatum *)item;
690 #if EXIV2_TEST_VERSION(0,17,0)
691 return utf8_validate_or_convert(metadatum->print().c_str());
693 std::stringstream str;
694 Exiv2::Exifdatum *exifdatum;
695 Exiv2::Iptcdatum *iptcdatum;
696 #if EXIV2_TEST_VERSION(0,16,0)
697 Exiv2::Xmpdatum *xmpdatum;
699 if ((exifdatum = dynamic_cast<Exiv2::Exifdatum *>(metadatum)))
701 else if ((iptcdatum = dynamic_cast<Exiv2::Iptcdatum *>(metadatum)))
703 #if EXIV2_TEST_VERSION(0,16,0)
704 else if ((xmpdatum = dynamic_cast<Exiv2::Xmpdatum *>(metadatum)))
708 return utf8_validate_or_convert(str.str().c_str());
711 catch (Exiv2::AnyError& e) {
716 gchar *exif_item_get_string(ExifItem *item, int idx)
719 if (!item) return NULL;
720 Exiv2::Metadatum *em = (Exiv2::Metadatum *)item;
721 #if EXIV2_TEST_VERSION(0,16,0)
722 std::string str = em->toString(idx);
724 std::string str = em->toString(); // FIXME
726 if (idx == 0 && str == "") str = em->toString();
727 if (str.length() > 5 && str.substr(0, 5) == "lang=")
729 std::string::size_type pos = str.find_first_of(' ');
730 if (pos != std::string::npos) str = str.substr(pos+1);
733 return utf8_validate_or_convert(str.c_str());
735 catch (Exiv2::AnyError& e) {
741 gint exif_item_get_integer(ExifItem *item, gint *value)
745 *value = ((Exiv2::Metadatum *)item)->toLong();
748 catch (Exiv2::AnyError& e) {
749 std::cout << "Caught Exiv2 exception '" << e << "'\n";
754 ExifRational *exif_item_get_rational(ExifItem *item, gint *sign, guint n)
757 if (!item) return NULL;
758 if (n >= exif_item_get_elements(item)) return NULL;
759 Exiv2::Rational v = ((Exiv2::Metadatum *)item)->toRational(n);
760 static ExifRational ret;
763 if (sign) *sign = (((Exiv2::Metadatum *)item)->typeId() == Exiv2::signedRational);
766 catch (Exiv2::AnyError& e) {
767 std::cout << "Caught Exiv2 exception '" << e << "'\n";
772 gchar *exif_get_tag_description_by_key(const gchar *key)
775 Exiv2::ExifKey ekey(key);
776 return utf8_validate_or_convert(Exiv2::ExifTags::tagLabel(ekey.tag(), ekey.ifdId ()));
778 catch (Exiv2::AnyError& e) {
779 std::cout << "Caught Exiv2 exception '" << e << "'\n";
784 static const AltKey *find_alt_key(const gchar *xmp_key)
788 while (alt_keys[i].xmp_key)
790 if (strcmp(xmp_key, alt_keys[i].xmp_key) == 0) return &alt_keys[i];
796 static gint exif_update_metadata_simple(ExifData *exif, const gchar *key, const GList *values)
799 const GList *work = values;
802 Exiv2::ExifKey ekey(key);
804 Exiv2::ExifData::iterator pos = exif->exifData().findKey(ekey);
805 while (pos != exif->exifData().end())
807 exif->exifData().erase(pos);
808 pos = exif->exifData().findKey(ekey);
813 exif->exifData()[key] = (gchar *)work->data;
817 catch (Exiv2::AnyError& e) {
818 #if EXIV2_TEST_VERSION(0,16,0)
822 Exiv2::IptcKey ekey(key);
823 Exiv2::IptcData::iterator pos = exif->iptcData().findKey(ekey);
824 while (pos != exif->iptcData().end())
826 exif->iptcData().erase(pos);
827 pos = exif->iptcData().findKey(ekey);
832 exif->iptcData()[key] = (gchar *)work->data;
836 #if EXIV2_TEST_VERSION(0,16,0)
837 catch (Exiv2::AnyError& e) {
838 Exiv2::XmpKey ekey(key);
839 Exiv2::XmpData::iterator pos = exif->xmpData().findKey(ekey);
840 while (pos != exif->xmpData().end())
842 exif->xmpData().erase(pos);
843 pos = exif->xmpData().findKey(ekey);
848 exif->xmpData()[key] = (gchar *)work->data;
856 catch (Exiv2::AnyError& e) {
857 std::cout << "Caught Exiv2 exception '" << e << "'\n";
862 gint exif_update_metadata(ExifData *exif, const gchar *key, const GList *values)
864 gint ret = exif_update_metadata_simple(exif, key, values);
867 #if !EXIV2_TEST_VERSION(0,17,0)
868 TRUE || /* no conversion support */
870 !values || /* deleting item */
871 !ret /* writing to the explicitely given xmp tag failed */
874 /* deleted xmp metadatum can't be converted, we have to delete also the corresponding legacy tag */
875 /* if we can't write xmp, update at least the legacy tag */
876 const AltKey *alt_key = find_alt_key(key);
877 if (alt_key && alt_key->iptc_key)
878 ret = exif_update_metadata_simple(exif, alt_key->iptc_key, values);
880 if (alt_key && alt_key->exif_key)
881 ret = exif_update_metadata_simple(exif, alt_key->exif_key, values);
887 static GList *exif_add_value_to_glist(GList *list, Exiv2::Metadatum &item, MetadataFormat format, const Exiv2::ExifData *metadata)
889 #if EXIV2_TEST_VERSION(0,16,0)
890 Exiv2::TypeId id = item.typeId();
891 if (format == METADATA_FORMATTED ||
892 id == Exiv2::asciiString ||
893 id == Exiv2::undefined ||
894 id == Exiv2::string ||
897 id == Exiv2::xmpText ||
898 id == Exiv2::langAlt ||
903 /* read as a single entry */
906 if (format == METADATA_FORMATTED)
908 #if EXIV2_TEST_VERSION(0,17,0)
910 #if EXIV2_TEST_VERSION(0,18,0)
915 std::stringstream stream;
916 Exiv2::Exifdatum *exifdatum;
917 Exiv2::Iptcdatum *iptcdatum;
918 #if EXIV2_TEST_VERSION(0,16,0)
919 Exiv2::Xmpdatum *xmpdatum;
921 if ((exifdatum = dynamic_cast<Exiv2::Exifdatum *>(metadatum)))
922 stream << *exifdatum;
923 else if ((iptcdatum = dynamic_cast<Exiv2::Iptcdatum *>(metadatum)))
924 stream << *iptcdatum;
925 #if EXIV2_TEST_VERSION(0,16,0)
926 else if ((xmpdatum = dynamic_cast<Exiv2::Xmpdatum *>(metadatum)))
931 if (str.length() > 1024)
933 /* truncate very long strings, they cause problems in gui */
940 str = item.toString();
941 if (str.length() > 5 && str.substr(0, 5) == "lang=")
943 std::string::size_type pos = str.find_first_of(' ');
944 if (pos != std::string::npos) str = str.substr(pos+1);
947 list = g_list_append(list, utf8_validate_or_convert(str.c_str()));
948 #if EXIV2_TEST_VERSION(0,16,0)
954 for (i = 0; i < item.count(); i++)
955 list = g_list_append(list, utf8_validate_or_convert(item.toString(i).c_str()));
961 static GList *exif_get_metadata_simple(ExifData *exif, const gchar *key, MetadataFormat format)
966 Exiv2::ExifKey ekey(key);
967 Exiv2::ExifData::iterator pos = exif->exifData().findKey(ekey);
968 if (pos != exif->exifData().end())
969 list = exif_add_value_to_glist(list, *pos, format, &exif->exifData());
972 catch (Exiv2::AnyError& e) {
974 Exiv2::IptcKey ekey(key);
975 Exiv2::IptcData::iterator pos = exif->iptcData().begin();
976 while (pos != exif->iptcData().end())
978 if (pos->key() == key)
979 list = exif_add_value_to_glist(list, *pos, format, NULL);
984 catch (Exiv2::AnyError& e) {
985 #if EXIV2_TEST_VERSION(0,16,0)
986 Exiv2::XmpKey ekey(key);
987 Exiv2::XmpData::iterator pos = exif->xmpData().findKey(ekey);
988 if (pos != exif->xmpData().end())
989 list = exif_add_value_to_glist(list, *pos, format, NULL);
994 catch (Exiv2::AnyError& e) {
995 std::cout << "Caught Exiv2 exception '" << e << "'\n";
1000 GList *exif_get_metadata(ExifData *exif, const gchar *key, MetadataFormat format)
1004 if (!key) return NULL;
1006 if (format == METADATA_FORMATTED)
1010 text = exif_get_formatted_by_key(exif, key, &key_valid);
1011 if (key_valid) return g_list_append(NULL, text);
1014 list = exif_get_metadata_simple(exif, key, format);
1016 /* the following code can be ifdefed out as soon as Exiv2 supports it */
1019 const AltKey *alt_key = find_alt_key(key);
1020 if (alt_key && alt_key->iptc_key)
1021 list = exif_get_metadata_simple(exif, alt_key->iptc_key, format);
1023 #if !EXIV2_TEST_VERSION(0,17,0)
1024 /* with older Exiv2 versions exif is not synced */
1025 if (!list && alt_key && alt_key->exif_key)
1026 list = exif_get_metadata_simple(exif, alt_key->exif_key, format);
1033 void exif_add_jpeg_color_profile(ExifData *exif, unsigned char *cp_data, guint cp_length)
1035 exif->add_jpeg_color_profile(cp_data, cp_length);
1038 guchar *exif_get_color_profile(ExifData *exif, guint *data_len)
1040 guchar *ret = exif->get_jpeg_color_profile(data_len);
1041 if (ret) return ret;
1043 ExifItem *prof_item = exif_get_item(exif, "Exif.Image.InterColorProfile");
1044 if (prof_item && exif_item_get_format_id(prof_item) == EXIF_FORMAT_UNDEFINED)
1045 ret = (guchar *)exif_item_get_data(prof_item, data_len);
1049 #if EXIV2_TEST_VERSION(0,17,90)
1051 guchar *exif_get_preview(ExifData *exif, guint *data_len, gint requested_width, gint requested_height)
1053 if (!exif) return NULL;
1055 const char* path = exif->image()->io().path().c_str();
1056 /* given image pathname, first do simple (and fast) file extension test */
1057 gboolean is_raw = filter_file_class(path, FORMAT_CLASS_RAWIMAGE);
1059 if (!is_raw && requested_width == 0) return NULL;
1063 Exiv2::PreviewManager pm(*exif->image());
1065 Exiv2::PreviewPropertiesList list = pm.getPreviewProperties();
1069 Exiv2::PreviewPropertiesList::iterator pos;
1070 Exiv2::PreviewPropertiesList::iterator last = --list.end();
1072 if (requested_width == 0)
1074 pos = last; // the largest
1081 if (pos->width_ >= (uint32_t)requested_width &&
1082 pos->height_ >= (uint32_t)requested_height) break;
1086 // we are not interested in smaller thumbnails in normal image formats - we can use full image instead
1089 if (pos->width_ < (uint32_t)requested_width || pos->height_ < (uint32_t)requested_height) return NULL;
1093 Exiv2::PreviewImage image = pm.getPreviewImage(*pos);
1095 Exiv2::DataBuf buf = image.copy();
1096 std::pair<Exiv2::byte*, long> p = buf.release();
1098 *data_len = p.second;
1103 catch (Exiv2::AnyError& e) {
1104 std::cout << "Caught Exiv2 exception '" << e << "'\n";
1109 void exif_free_preview(guchar *buf)
1111 delete[] (Exiv2::byte*)buf;
1116 #if !EXIV2_TEST_VERSION(0,17,90)
1118 /* This is a dirty hack to support raw file preview, bassed on
1119 tiffparse.cpp from Exiv2 examples */
1124 RawFile(Exiv2::BasicIo &io);
1127 const Exiv2::Value *find(uint16_t tag, uint16_t group);
1129 unsigned long preview_offset();
1133 Exiv2::TiffComponent::AutoPtr rootDir;
1134 Exiv2::BasicIo &io_;
1135 const Exiv2::byte *map_data;
1137 unsigned long offset;
1140 typedef struct _UnmapData UnmapData;
1148 static GList *exif_unmap_list = 0;
1150 extern "C" guchar *exif_get_preview(ExifData *exif, guint *data_len, gint requested_width, gint requested_height)
1152 unsigned long offset;
1154 if (!exif) return NULL;
1155 const char* path = exif->image()->io().path().c_str();
1157 /* given image pathname, first do simple (and fast) file extension test */
1158 if (!filter_file_class(path, FORMAT_CLASS_RAWIMAGE)) return NULL;
1167 RawFile rf(exif->image()->io());
1168 offset = rf.preview_offset();
1169 DEBUG_1("%s: offset %lu", path, offset);
1171 fd = open(path, O_RDONLY);
1177 if (fstat(fd, &st) == -1)
1182 map_len = st.st_size;
1183 map_data = (guchar *) mmap(0, map_len, PROT_READ, MAP_PRIVATE, fd, 0);
1185 if (map_data == MAP_FAILED)
1189 *data_len = map_len - offset;
1190 ud = g_new(UnmapData, 1);
1191 ud->ptr = map_data + offset;
1192 ud->map_data = map_data;
1193 ud->map_len = map_len;
1195 exif_unmap_list = g_list_prepend(exif_unmap_list, ud);
1199 catch (Exiv2::AnyError& e) {
1200 std::cout << "Caught Exiv2 exception '" << e << "'\n";
1206 void exif_free_preview(guchar *buf)
1208 GList *work = exif_unmap_list;
1212 UnmapData *ud = (UnmapData *)work->data;
1215 munmap(ud->map_data, ud->map_len);
1216 exif_unmap_list = g_list_remove_link(exif_unmap_list, work);
1222 g_assert_not_reached();
1225 using namespace Exiv2;
1227 RawFile::RawFile(BasicIo &io) : io_(io), map_data(NULL), map_len(0), offset(0)
1231 if (fstat(fd, &st) == -1)
1235 map_len = st.st_size;
1236 map_data = (Exiv2::byte *) mmap(0, map_len, PROT_READ, MAP_PRIVATE, fd, 0);
1237 if (map_data == MAP_FAILED)
1242 if (io.open() != 0) {
1243 throw Error(9, io.path(), strError());
1246 map_data = io.mmap();
1247 map_len = io.size();
1250 type = Exiv2::ImageFactory::getType(map_data, map_len);
1252 #if EXIV2_TEST_VERSION(0,16,0)
1253 TiffHeaderBase *tiffHeader = NULL;
1255 TiffHeade2 *tiffHeader = NULL;
1257 Cr2Header *cr2Header = NULL;
1260 case Exiv2::ImageType::tiff:
1261 tiffHeader = new TiffHeade2();
1263 case Exiv2::ImageType::cr2:
1264 cr2Header = new Cr2Header();
1266 #if EXIV2_TEST_VERSION(0,16,0)
1267 case Exiv2::ImageType::orf:
1268 tiffHeader = new OrfHeader();
1271 #if EXIV2_TEST_VERSION(0,13,0)
1272 case Exiv2::ImageType::raf:
1273 if (map_len < 84 + 4) throw Error(14);
1274 offset = getULong(map_data + 84, bigEndian);
1277 case Exiv2::ImageType::crw:
1279 // Parse the image, starting with a CIFF header component
1280 Exiv2::CiffHeader::AutoPtr parseTree(new Exiv2::CiffHeader);
1281 parseTree->read(map_data, map_len);
1282 CiffComponent *entry = parseTree->findComponent(0x2007, 0);
1283 if (entry) offset = entry->pData() - map_data;
1288 throw Error(3, "RAW");
1291 // process tiff-like formats
1293 TiffCompFactoryFct createFct = TiffCreator::create;
1295 rootDir = createFct(Tag::root, Group::none);
1296 if (0 == rootDir.get()) {
1297 throw Error(1, "No root element defined in TIFF structure");
1302 if (!tiffHeader->read(map_data, map_len)) throw Error(3, "TIFF");
1303 #if EXIV2_TEST_VERSION(0,16,0)
1304 rootDir->setStart(map_data + tiffHeader->offset());
1306 rootDir->setStart(map_data + tiffHeader->ifdOffset());
1312 rootDir->setStart(map_data + cr2Header->offset());
1315 TiffRwState::AutoPtr state(new TiffRwState(tiffHeader ? tiffHeader->byteOrder() : littleEndian, 0, createFct));
1317 TiffReader reader(map_data,
1322 rootDir->accept(reader);
1330 RawFile::~RawFile(void)
1336 const Value * RawFile::find(uint16_t tag, uint16_t group)
1338 TiffFinder finder(tag, group);
1339 rootDir->accept(finder);
1340 TiffEntryBase* te = dynamic_cast<TiffEntryBase*>(finder.result());
1343 DEBUG_1("(tag: %04x %04x) ", tag, group);
1344 return te->pValue();
1350 unsigned long RawFile::preview_offset(void)
1353 if (offset) return offset;
1355 if (type == Exiv2::ImageType::cr2)
1357 val = find(0x111, Group::ifd0);
1358 if (val) return val->toLong();
1363 val = find(0x201, Group::sub0_0);
1364 if (val) return val->toLong();
1366 val = find(0x201, Group::ifd0);
1367 if (val) return val->toLong();
1369 val = find(0x201, Group::ignr); // for PEF files, originally it was probably ifd2
1370 if (val) return val->toLong();
1372 val = find(0x111, Group::sub0_1); // dng
1373 if (val) return val->toLong();
1384 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */