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 Exiv2::ExifData emptyExifData_;
135 Exiv2::IptcData emptyIptcData_;
136 #if EXIV2_TEST_VERSION(0,16,0)
137 Exiv2::XmpData emptyXmpData_;
141 _ExifDataOriginal(Exiv2::Image::AutoPtr image)
149 _ExifDataOriginal(gchar *path)
155 gchar *pathl = path_from_utf8(path);
158 image_ = Exiv2::ImageFactory::open(pathl);
159 // g_assert (image.get() != 0);
160 image_->readMetadata();
162 #if EXIV2_TEST_VERSION(0,16,0)
163 if (image_->mimeType() == "application/rdf+xml")
165 //Exiv2 sidecar converts xmp to exif and iptc, we don't want it.
166 image_->clearExifData();
167 image_->clearIptcData();
171 #if EXIV2_TEST_VERSION(0,14,0)
172 if (image_->mimeType() == "image/jpeg")
174 /* try to get jpeg color profile */
175 Exiv2::BasicIo &io = image_->io();
176 gint open = io.isopen();
177 if (!open) io.open();
180 unsigned char *mapped = (unsigned char*)io.mmap();
181 if (mapped) exif_jpeg_parse_color(this, mapped, io.size());
184 if (!open) io.close();
188 catch (Exiv2::AnyError& e)
195 virtual ~_ExifDataOriginal()
197 if (cp_data_) g_free(cp_data_);
200 virtual Exiv2::Image *image()
202 if (!valid_) return NULL;
206 virtual Exiv2::ExifData &exifData ()
208 if (!valid_) return emptyExifData_;
209 return image_->exifData();
212 virtual Exiv2::IptcData &iptcData ()
214 if (!valid_) return emptyIptcData_;
215 return image_->iptcData();
218 #if EXIV2_TEST_VERSION(0,16,0)
219 virtual Exiv2::XmpData &xmpData ()
221 if (!valid_) return emptyXmpData_;
222 return image_->xmpData();
226 virtual void add_jpeg_color_profile(unsigned char *cp_data, guint cp_length)
228 if (cp_data_) g_free(cp_data_);
230 cp_length_ = cp_length;
233 virtual guchar *get_jpeg_color_profile(guint *data_len)
237 if (data_len) *data_len = cp_length_;
238 return (unsigned char *) g_memdup(cp_data_, cp_length_);
245 static void _ExifDataProcessed_update_xmp(gpointer key, gpointer value, gpointer data);
248 // This allows read-write access to the metadata
249 struct _ExifDataProcessed : public _ExifData
252 _ExifDataOriginal *imageData_;
253 _ExifDataOriginal *sidecarData_;
255 Exiv2::ExifData exifData_;
256 Exiv2::IptcData iptcData_;
257 #if EXIV2_TEST_VERSION(0,16,0)
258 Exiv2::XmpData xmpData_;
262 _ExifDataProcessed(gchar *path, gchar *sidecar_path, GHashTable *modified_xmp)
264 imageData_ = new _ExifDataOriginal(path);
266 #if EXIV2_TEST_VERSION(0,16,0)
269 sidecarData_ = new _ExifDataOriginal(sidecar_path);
270 xmpData_ = sidecarData_->xmpData();
274 xmpData_ = imageData_->xmpData();
278 exifData_ = imageData_->exifData();
279 iptcData_ = imageData_->iptcData();
280 #if EXIV2_TEST_VERSION(0,17,0)
281 syncExifWithXmp(exifData_, xmpData_);
285 g_hash_table_foreach(modified_xmp, _ExifDataProcessed_update_xmp, this);
289 virtual ~_ExifDataProcessed()
291 if (imageData_) delete imageData_;
292 if (sidecarData_) delete sidecarData_;
295 virtual ExifData *original()
300 virtual void writeMetadata(gchar *path = NULL)
304 #if EXIV2_TEST_VERSION(0,17,0)
305 if (options->metadata.save_legacy_IPTC)
306 copyXmpToIptc(xmpData_, iptcData_);
310 copyXmpToExif(xmpData_, exifData_);
312 Exiv2::Image *image = imageData_->image();
314 if (!image) Exiv2::Error(21);
315 image->setExifData(exifData_);
316 image->setIptcData(iptcData_);
317 #if EXIV2_TEST_VERSION(0,16,0)
318 image->setXmpData(xmpData_);
320 image->writeMetadata();
324 #if EXIV2_TEST_VERSION(0,17,0)
325 gchar *pathl = path_from_utf8(path);;
327 Exiv2::Image::AutoPtr sidecar = Exiv2::ImageFactory::create(Exiv2::ImageType::xmp, pathl);
331 sidecar->setXmpData(xmpData_);
332 sidecar->writeMetadata();
334 throw Exiv2::Error(3, "xmp");
339 virtual Exiv2::Image *image()
341 return imageData_->image();
344 virtual Exiv2::ExifData &exifData ()
349 virtual Exiv2::IptcData &iptcData ()
354 #if EXIV2_TEST_VERSION(0,16,0)
355 virtual Exiv2::XmpData &xmpData ()
361 virtual void add_jpeg_color_profile(unsigned char *cp_data, guint cp_length)
363 imageData_->add_jpeg_color_profile(cp_data, cp_length);
366 virtual guchar *get_jpeg_color_profile(guint *data_len)
368 return imageData_->get_jpeg_color_profile(data_len);
380 #ifdef EXV_ENABLE_NLS
381 bind_textdomain_codeset (EXV_PACKAGE, "UTF-8");
387 static void _ExifDataProcessed_update_xmp(gpointer key, gpointer value, gpointer data)
389 exif_update_metadata((ExifData *)data, (gchar *)key, (GList *)value);
392 ExifData *exif_read(gchar *path, gchar *sidecar_path, GHashTable *modified_xmp)
394 DEBUG_1("exif read %s, sidecar: %s", path, sidecar_path ? sidecar_path : "-");
396 return new _ExifDataProcessed(path, sidecar_path, modified_xmp);
398 catch (Exiv2::AnyError& e) {
399 std::cout << "Caught Exiv2 exception '" << e << "'\n";
405 gboolean exif_write(ExifData *exif)
408 exif->writeMetadata();
411 catch (Exiv2::AnyError& e) {
412 std::cout << "Caught Exiv2 exception '" << e << "'\n";
417 gboolean exif_write_sidecar(ExifData *exif, gchar *path)
420 exif->writeMetadata(path);
423 catch (Exiv2::AnyError& e) {
424 std::cout << "Caught Exiv2 exception '" << e << "'\n";
431 void exif_free(ExifData *exif)
434 g_assert(dynamic_cast<_ExifDataProcessed *>(exif)); // this should not be called on ExifDataOriginal
438 ExifData *exif_get_original(ExifData *exif)
440 return exif->original();
444 ExifItem *exif_get_item(ExifData *exif, const gchar *key)
447 Exiv2::Metadatum *item = NULL;
449 Exiv2::ExifKey ekey(key);
450 Exiv2::ExifData::iterator pos = exif->exifData().findKey(ekey);
451 if (pos == exif->exifData().end()) return NULL;
454 catch (Exiv2::AnyError& e) {
456 Exiv2::IptcKey ekey(key);
457 Exiv2::IptcData::iterator pos = exif->iptcData().findKey(ekey);
458 if (pos == exif->iptcData().end()) return NULL;
461 catch (Exiv2::AnyError& e) {
462 #if EXIV2_TEST_VERSION(0,16,0)
463 Exiv2::XmpKey ekey(key);
464 Exiv2::XmpData::iterator pos = exif->xmpData().findKey(ekey);
465 if (pos == exif->xmpData().end()) return NULL;
470 return (ExifItem *)item;
472 catch (Exiv2::AnyError& e) {
473 std::cout << "Caught Exiv2 exception '" << e << "'\n";
478 ExifItem *exif_add_item(ExifData *exif, const gchar *key)
481 Exiv2::Metadatum *item = NULL;
483 Exiv2::ExifKey ekey(key);
484 exif->exifData().add(ekey, NULL);
485 Exiv2::ExifData::iterator pos = exif->exifData().end(); // a hack, there should be a better way to get the currently added item
489 catch (Exiv2::AnyError& e) {
491 Exiv2::IptcKey ekey(key);
492 exif->iptcData().add(ekey, NULL);
493 Exiv2::IptcData::iterator pos = exif->iptcData().end();
497 catch (Exiv2::AnyError& e) {
498 #if EXIV2_TEST_VERSION(0,16,0)
499 Exiv2::XmpKey ekey(key);
500 exif->xmpData().add(ekey, NULL);
501 Exiv2::XmpData::iterator pos = exif->xmpData().end();
507 return (ExifItem *)item;
509 catch (Exiv2::AnyError& e) {
510 std::cout << "Caught Exiv2 exception '" << e << "'\n";
516 ExifItem *exif_get_first_item(ExifData *exif)
519 exif->exifIter = exif->exifData().begin();
520 exif->iptcIter = exif->iptcData().begin();
521 #if EXIV2_TEST_VERSION(0,16,0)
522 exif->xmpIter = exif->xmpData().begin();
524 if (exif->exifIter != exif->exifData().end())
526 const Exiv2::Metadatum *item = &*exif->exifIter;
528 return (ExifItem *)item;
530 if (exif->iptcIter != exif->iptcData().end())
532 const Exiv2::Metadatum *item = &*exif->iptcIter;
534 return (ExifItem *)item;
536 #if EXIV2_TEST_VERSION(0,16,0)
537 if (exif->xmpIter != exif->xmpData().end())
539 const Exiv2::Metadatum *item = &*exif->xmpIter;
541 return (ExifItem *)item;
547 catch (Exiv2::AnyError& e) {
548 std::cout << "Caught Exiv2 exception '" << e << "'\n";
553 ExifItem *exif_get_next_item(ExifData *exif)
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;
578 catch (Exiv2::AnyError& e) {
579 std::cout << "Caught Exiv2 exception '" << e << "'\n";
584 char *exif_item_get_tag_name(ExifItem *item)
587 if (!item) return NULL;
588 return g_strdup(((Exiv2::Metadatum *)item)->key().c_str());
590 catch (Exiv2::AnyError& e) {
591 std::cout << "Caught Exiv2 exception '" << e << "'\n";
596 guint exif_item_get_tag_id(ExifItem *item)
600 return ((Exiv2::Metadatum *)item)->tag();
602 catch (Exiv2::AnyError& e) {
603 std::cout << "Caught Exiv2 exception '" << e << "'\n";
608 guint exif_item_get_elements(ExifItem *item)
612 return ((Exiv2::Metadatum *)item)->count();
614 catch (Exiv2::AnyError& e) {
615 std::cout << "Caught Exiv2 exception '" << e << "'\n";
620 char *exif_item_get_data(ExifItem *item, guint *data_len)
624 Exiv2::Metadatum *md = (Exiv2::Metadatum *)item;
625 if (data_len) *data_len = md->size();
626 char *data = (char *)g_malloc(md->size());
627 long res = md->copy((Exiv2::byte *)data, Exiv2::littleEndian /* should not matter */);
628 g_assert(res == md->size());
631 catch (Exiv2::AnyError& e) {
632 std::cout << "Caught Exiv2 exception '" << e << "'\n";
637 char *exif_item_get_description(ExifItem *item)
640 if (!item) return NULL;
641 return utf8_validate_or_convert(((Exiv2::Metadatum *)item)->tagLabel().c_str());
643 catch (std::exception& e) {
644 // std::cout << "Caught Exiv2 exception '" << e << "'\n";
650 invalidTypeId, unsignedByte, asciiString, unsignedShort,
651 unsignedLong, unsignedRational, signedByte, undefined,
652 signedShort, signedLong, signedRational, string,
653 date, time, comment, directory,
654 xmpText, xmpAlt, xmpBag, xmpSeq,
658 static guint format_id_trans_tbl [] = {
660 EXIF_FORMAT_BYTE_UNSIGNED,
662 EXIF_FORMAT_SHORT_UNSIGNED,
663 EXIF_FORMAT_LONG_UNSIGNED,
664 EXIF_FORMAT_RATIONAL_UNSIGNED,
666 EXIF_FORMAT_UNDEFINED,
669 EXIF_FORMAT_RATIONAL,
673 EXIF_FORMAT_UNDEFINED,
682 guint exif_item_get_format_id(ExifItem *item)
685 if (!item) return EXIF_FORMAT_UNKNOWN;
686 guint id = ((Exiv2::Metadatum *)item)->typeId();
687 if (id >= (sizeof(format_id_trans_tbl) / sizeof(format_id_trans_tbl[0])) ) return EXIF_FORMAT_UNKNOWN;
688 return format_id_trans_tbl[id];
690 catch (Exiv2::AnyError& e) {
691 std::cout << "Caught Exiv2 exception '" << e << "'\n";
692 return EXIF_FORMAT_UNKNOWN;
696 const char *exif_item_get_format_name(ExifItem *item, gboolean brief)
699 if (!item) return NULL;
700 return ((Exiv2::Metadatum *)item)->typeName();
702 catch (Exiv2::AnyError& e) {
703 std::cout << "Caught Exiv2 exception '" << e << "'\n";
709 gchar *exif_item_get_data_as_text(ExifItem *item)
712 if (!item) return NULL;
713 Exiv2::Metadatum *metadatum = (Exiv2::Metadatum *)item;
714 #if EXIV2_TEST_VERSION(0,17,0)
715 return utf8_validate_or_convert(metadatum->print().c_str());
717 std::stringstream str;
718 Exiv2::Exifdatum *exifdatum;
719 Exiv2::Iptcdatum *iptcdatum;
720 #if EXIV2_TEST_VERSION(0,16,0)
721 Exiv2::Xmpdatum *xmpdatum;
723 if ((exifdatum = dynamic_cast<Exiv2::Exifdatum *>(metadatum)))
725 else if ((iptcdatum = dynamic_cast<Exiv2::Iptcdatum *>(metadatum)))
727 #if EXIV2_TEST_VERSION(0,16,0)
728 else if ((xmpdatum = dynamic_cast<Exiv2::Xmpdatum *>(metadatum)))
732 return utf8_validate_or_convert(str.str().c_str());
735 catch (Exiv2::AnyError& e) {
740 gchar *exif_item_get_string(ExifItem *item, int idx)
743 if (!item) return NULL;
744 Exiv2::Metadatum *em = (Exiv2::Metadatum *)item;
745 #if EXIV2_TEST_VERSION(0,16,0)
746 std::string str = em->toString(idx);
748 std::string str = em->toString(); // FIXME
750 if (idx == 0 && str == "") str = em->toString();
751 if (str.length() > 5 && str.substr(0, 5) == "lang=")
753 std::string::size_type pos = str.find_first_of(' ');
754 if (pos != std::string::npos) str = str.substr(pos+1);
757 return utf8_validate_or_convert(str.c_str());
759 catch (Exiv2::AnyError& e) {
765 gint exif_item_get_integer(ExifItem *item, gint *value)
769 *value = ((Exiv2::Metadatum *)item)->toLong();
772 catch (Exiv2::AnyError& e) {
773 std::cout << "Caught Exiv2 exception '" << e << "'\n";
778 ExifRational *exif_item_get_rational(ExifItem *item, gint *sign, guint n)
781 if (!item) return NULL;
782 if (n >= exif_item_get_elements(item)) return NULL;
783 Exiv2::Rational v = ((Exiv2::Metadatum *)item)->toRational(n);
784 static ExifRational ret;
787 if (sign) *sign = (((Exiv2::Metadatum *)item)->typeId() == Exiv2::signedRational);
790 catch (Exiv2::AnyError& e) {
791 std::cout << "Caught Exiv2 exception '" << e << "'\n";
796 gchar *exif_get_tag_description_by_key(const gchar *key)
799 Exiv2::ExifKey ekey(key);
800 return utf8_validate_or_convert(Exiv2::ExifTags::tagLabel(ekey.tag(), ekey.ifdId ()));
802 catch (Exiv2::AnyError& e) {
803 std::cout << "Caught Exiv2 exception '" << e << "'\n";
808 static const AltKey *find_alt_key(const gchar *xmp_key)
812 while (alt_keys[i].xmp_key)
814 if (strcmp(xmp_key, alt_keys[i].xmp_key) == 0) return &alt_keys[i];
820 static gint exif_update_metadata_simple(ExifData *exif, const gchar *key, const GList *values)
823 const GList *work = values;
826 Exiv2::ExifKey ekey(key);
828 Exiv2::ExifData::iterator pos = exif->exifData().findKey(ekey);
829 while (pos != exif->exifData().end())
831 exif->exifData().erase(pos);
832 pos = exif->exifData().findKey(ekey);
837 exif->exifData()[key] = (gchar *)work->data;
841 catch (Exiv2::AnyError& e) {
842 #if EXIV2_TEST_VERSION(0,16,0)
846 Exiv2::IptcKey ekey(key);
847 Exiv2::IptcData::iterator pos = exif->iptcData().findKey(ekey);
848 while (pos != exif->iptcData().end())
850 exif->iptcData().erase(pos);
851 pos = exif->iptcData().findKey(ekey);
856 exif->iptcData()[key] = (gchar *)work->data;
860 #if EXIV2_TEST_VERSION(0,16,0)
861 catch (Exiv2::AnyError& e) {
862 Exiv2::XmpKey ekey(key);
863 Exiv2::XmpData::iterator pos = exif->xmpData().findKey(ekey);
864 while (pos != exif->xmpData().end())
866 exif->xmpData().erase(pos);
867 pos = exif->xmpData().findKey(ekey);
872 exif->xmpData()[key] = (gchar *)work->data;
880 catch (Exiv2::AnyError& e) {
881 std::cout << "Caught Exiv2 exception '" << e << "'\n";
886 gint exif_update_metadata(ExifData *exif, const gchar *key, const GList *values)
888 gint ret = exif_update_metadata_simple(exif, key, values);
891 #if !EXIV2_TEST_VERSION(0,17,0)
892 TRUE || /* no conversion support */
894 !values || /* deleting item */
895 !ret /* writing to the explicitely given xmp tag failed */
898 /* deleted xmp metadatum can't be converted, we have to delete also the corresponding legacy tag */
899 /* if we can't write xmp, update at least the legacy tag */
900 const AltKey *alt_key = find_alt_key(key);
901 if (alt_key && alt_key->iptc_key)
902 ret = exif_update_metadata_simple(exif, alt_key->iptc_key, values);
904 if (alt_key && alt_key->exif_key)
905 ret = exif_update_metadata_simple(exif, alt_key->exif_key, values);
911 static GList *exif_add_value_to_glist(GList *list, Exiv2::Metadatum &item, MetadataFormat format, const Exiv2::ExifData *metadata)
913 #if EXIV2_TEST_VERSION(0,16,0)
914 Exiv2::TypeId id = item.typeId();
915 if (format == METADATA_FORMATTED ||
916 id == Exiv2::asciiString ||
917 id == Exiv2::undefined ||
918 id == Exiv2::string ||
921 id == Exiv2::xmpText ||
922 id == Exiv2::langAlt ||
927 /* read as a single entry */
930 if (format == METADATA_FORMATTED)
932 #if EXIV2_TEST_VERSION(0,17,0)
934 #if EXIV2_TEST_VERSION(0,18,0)
939 std::stringstream stream;
940 Exiv2::Exifdatum *exifdatum;
941 Exiv2::Iptcdatum *iptcdatum;
942 #if EXIV2_TEST_VERSION(0,16,0)
943 Exiv2::Xmpdatum *xmpdatum;
945 if ((exifdatum = dynamic_cast<Exiv2::Exifdatum *>(metadatum)))
946 stream << *exifdatum;
947 else if ((iptcdatum = dynamic_cast<Exiv2::Iptcdatum *>(metadatum)))
948 stream << *iptcdatum;
949 #if EXIV2_TEST_VERSION(0,16,0)
950 else if ((xmpdatum = dynamic_cast<Exiv2::Xmpdatum *>(metadatum)))
955 if (str.length() > 1024)
957 /* truncate very long strings, they cause problems in gui */
964 str = item.toString();
965 if (str.length() > 5 && str.substr(0, 5) == "lang=")
967 std::string::size_type pos = str.find_first_of(' ');
968 if (pos != std::string::npos) str = str.substr(pos+1);
971 list = g_list_append(list, utf8_validate_or_convert(str.c_str()));
972 #if EXIV2_TEST_VERSION(0,16,0)
978 for (i = 0; i < item.count(); i++)
979 list = g_list_append(list, utf8_validate_or_convert(item.toString(i).c_str()));
985 static GList *exif_get_metadata_simple(ExifData *exif, const gchar *key, MetadataFormat format)
990 Exiv2::ExifKey ekey(key);
991 Exiv2::ExifData::iterator pos = exif->exifData().findKey(ekey);
992 if (pos != exif->exifData().end())
993 list = exif_add_value_to_glist(list, *pos, format, &exif->exifData());
996 catch (Exiv2::AnyError& e) {
998 Exiv2::IptcKey ekey(key);
999 Exiv2::IptcData::iterator pos = exif->iptcData().begin();
1000 while (pos != exif->iptcData().end())
1002 if (pos->key() == key)
1003 list = exif_add_value_to_glist(list, *pos, format, NULL);
1008 catch (Exiv2::AnyError& e) {
1009 #if EXIV2_TEST_VERSION(0,16,0)
1010 Exiv2::XmpKey ekey(key);
1011 Exiv2::XmpData::iterator pos = exif->xmpData().findKey(ekey);
1012 if (pos != exif->xmpData().end())
1013 list = exif_add_value_to_glist(list, *pos, format, NULL);
1018 catch (Exiv2::AnyError& e) {
1019 std::cout << "Caught Exiv2 exception '" << e << "'\n";
1024 GList *exif_get_metadata(ExifData *exif, const gchar *key, MetadataFormat format)
1028 if (!key) return NULL;
1030 if (format == METADATA_FORMATTED)
1034 text = exif_get_formatted_by_key(exif, key, &key_valid);
1035 if (key_valid) return g_list_append(NULL, text);
1038 list = exif_get_metadata_simple(exif, key, format);
1040 /* the following code can be ifdefed out as soon as Exiv2 supports it */
1043 const AltKey *alt_key = find_alt_key(key);
1044 if (alt_key && alt_key->iptc_key)
1045 list = exif_get_metadata_simple(exif, alt_key->iptc_key, format);
1047 #if !EXIV2_TEST_VERSION(0,17,0)
1048 /* with older Exiv2 versions exif is not synced */
1049 if (!list && alt_key && alt_key->exif_key)
1050 list = exif_get_metadata_simple(exif, alt_key->exif_key, format);
1057 void exif_add_jpeg_color_profile(ExifData *exif, unsigned char *cp_data, guint cp_length)
1059 exif->add_jpeg_color_profile(cp_data, cp_length);
1062 guchar *exif_get_color_profile(ExifData *exif, guint *data_len)
1064 guchar *ret = exif->get_jpeg_color_profile(data_len);
1065 if (ret) return ret;
1067 ExifItem *prof_item = exif_get_item(exif, "Exif.Image.InterColorProfile");
1068 if (prof_item && exif_item_get_format_id(prof_item) == EXIF_FORMAT_UNDEFINED)
1069 ret = (guchar *)exif_item_get_data(prof_item, data_len);
1073 #if EXIV2_TEST_VERSION(0,17,90)
1075 guchar *exif_get_preview(ExifData *exif, guint *data_len, gint requested_width, gint requested_height)
1077 if (!exif) return NULL;
1079 if (!exif->image()) return NULL;
1081 const char* path = exif->image()->io().path().c_str();
1082 /* given image pathname, first do simple (and fast) file extension test */
1083 gboolean is_raw = filter_file_class(path, FORMAT_CLASS_RAWIMAGE);
1085 if (!is_raw && requested_width == 0) return NULL;
1089 Exiv2::PreviewManager pm(*exif->image());
1091 Exiv2::PreviewPropertiesList list = pm.getPreviewProperties();
1095 Exiv2::PreviewPropertiesList::iterator pos;
1096 Exiv2::PreviewPropertiesList::iterator last = --list.end();
1098 if (requested_width == 0)
1100 pos = last; // the largest
1107 if (pos->width_ >= (uint32_t)requested_width &&
1108 pos->height_ >= (uint32_t)requested_height) break;
1112 // we are not interested in smaller thumbnails in normal image formats - we can use full image instead
1115 if (pos->width_ < (uint32_t)requested_width || pos->height_ < (uint32_t)requested_height) return NULL;
1119 Exiv2::PreviewImage image = pm.getPreviewImage(*pos);
1121 Exiv2::DataBuf buf = image.copy();
1122 std::pair<Exiv2::byte*, long> p = buf.release();
1124 *data_len = p.second;
1129 catch (Exiv2::AnyError& e) {
1130 std::cout << "Caught Exiv2 exception '" << e << "'\n";
1135 void exif_free_preview(guchar *buf)
1137 delete[] (Exiv2::byte*)buf;
1142 #if !EXIV2_TEST_VERSION(0,17,90)
1144 /* This is a dirty hack to support raw file preview, bassed on
1145 tiffparse.cpp from Exiv2 examples */
1150 RawFile(Exiv2::BasicIo &io);
1153 const Exiv2::Value *find(uint16_t tag, uint16_t group);
1155 unsigned long preview_offset();
1159 Exiv2::TiffComponent::AutoPtr rootDir;
1160 Exiv2::BasicIo &io_;
1161 const Exiv2::byte *map_data;
1163 unsigned long offset;
1166 typedef struct _UnmapData UnmapData;
1174 static GList *exif_unmap_list = 0;
1176 extern "C" guchar *exif_get_preview(ExifData *exif, guint *data_len, gint requested_width, gint requested_height)
1178 unsigned long offset;
1180 if (!exif) return NULL;
1181 if (!exif->image()) return NULL;
1183 const char* path = exif->image()->io().path().c_str();
1185 /* given image pathname, first do simple (and fast) file extension test */
1186 if (!filter_file_class(path, FORMAT_CLASS_RAWIMAGE)) return NULL;
1195 RawFile rf(exif->image()->io());
1196 offset = rf.preview_offset();
1197 DEBUG_1("%s: offset %lu", path, offset);
1199 fd = open(path, O_RDONLY);
1205 if (fstat(fd, &st) == -1)
1210 map_len = st.st_size;
1211 map_data = (guchar *) mmap(0, map_len, PROT_READ, MAP_PRIVATE, fd, 0);
1213 if (map_data == MAP_FAILED)
1217 *data_len = map_len - offset;
1218 ud = g_new(UnmapData, 1);
1219 ud->ptr = map_data + offset;
1220 ud->map_data = map_data;
1221 ud->map_len = map_len;
1223 exif_unmap_list = g_list_prepend(exif_unmap_list, ud);
1227 catch (Exiv2::AnyError& e) {
1228 std::cout << "Caught Exiv2 exception '" << e << "'\n";
1234 void exif_free_preview(guchar *buf)
1236 GList *work = exif_unmap_list;
1240 UnmapData *ud = (UnmapData *)work->data;
1243 munmap(ud->map_data, ud->map_len);
1244 exif_unmap_list = g_list_remove_link(exif_unmap_list, work);
1250 g_assert_not_reached();
1253 using namespace Exiv2;
1255 RawFile::RawFile(BasicIo &io) : io_(io), map_data(NULL), map_len(0), offset(0)
1259 if (fstat(fd, &st) == -1)
1263 map_len = st.st_size;
1264 map_data = (Exiv2::byte *) mmap(0, map_len, PROT_READ, MAP_PRIVATE, fd, 0);
1265 if (map_data == MAP_FAILED)
1270 if (io.open() != 0) {
1271 throw Error(9, io.path(), strError());
1274 map_data = io.mmap();
1275 map_len = io.size();
1278 type = Exiv2::ImageFactory::getType(map_data, map_len);
1280 #if EXIV2_TEST_VERSION(0,16,0)
1281 TiffHeaderBase *tiffHeader = NULL;
1283 TiffHeade2 *tiffHeader = NULL;
1285 Cr2Header *cr2Header = NULL;
1288 case Exiv2::ImageType::tiff:
1289 tiffHeader = new TiffHeade2();
1291 case Exiv2::ImageType::cr2:
1292 cr2Header = new Cr2Header();
1294 #if EXIV2_TEST_VERSION(0,16,0)
1295 case Exiv2::ImageType::orf:
1296 tiffHeader = new OrfHeader();
1299 #if EXIV2_TEST_VERSION(0,13,0)
1300 case Exiv2::ImageType::raf:
1301 if (map_len < 84 + 4) throw Error(14);
1302 offset = getULong(map_data + 84, bigEndian);
1305 case Exiv2::ImageType::crw:
1307 // Parse the image, starting with a CIFF header component
1308 Exiv2::CiffHeader::AutoPtr parseTree(new Exiv2::CiffHeader);
1309 parseTree->read(map_data, map_len);
1310 CiffComponent *entry = parseTree->findComponent(0x2007, 0);
1311 if (entry) offset = entry->pData() - map_data;
1316 throw Error(3, "RAW");
1319 // process tiff-like formats
1321 TiffCompFactoryFct createFct = TiffCreator::create;
1323 rootDir = createFct(Tag::root, Group::none);
1324 if (0 == rootDir.get()) {
1325 throw Error(1, "No root element defined in TIFF structure");
1330 if (!tiffHeader->read(map_data, map_len)) throw Error(3, "TIFF");
1331 #if EXIV2_TEST_VERSION(0,16,0)
1332 rootDir->setStart(map_data + tiffHeader->offset());
1334 rootDir->setStart(map_data + tiffHeader->ifdOffset());
1340 rootDir->setStart(map_data + cr2Header->offset());
1343 TiffRwState::AutoPtr state(new TiffRwState(tiffHeader ? tiffHeader->byteOrder() : littleEndian, 0, createFct));
1345 TiffReader reader(map_data,
1350 rootDir->accept(reader);
1358 RawFile::~RawFile(void)
1364 const Value * RawFile::find(uint16_t tag, uint16_t group)
1366 TiffFinder finder(tag, group);
1367 rootDir->accept(finder);
1368 TiffEntryBase* te = dynamic_cast<TiffEntryBase*>(finder.result());
1371 DEBUG_1("(tag: %04x %04x) ", tag, group);
1372 return te->pValue();
1378 unsigned long RawFile::preview_offset(void)
1381 if (offset) return offset;
1383 if (type == Exiv2::ImageType::cr2)
1385 val = find(0x111, Group::ifd0);
1386 if (val) return val->toLong();
1391 val = find(0x201, Group::sub0_0);
1392 if (val) return val->toLong();
1394 val = find(0x201, Group::ifd0);
1395 if (val) return val->toLong();
1397 val = find(0x201, Group::ignr); // for PEF files, originally it was probably ifd2
1398 if (val) return val->toLong();
1400 val = find(0x111, Group::sub0_1); // dng
1401 if (val) return val->toLong();
1412 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */