2 * Copyright (C) 2008 - 2016 The Geeqie Team
4 * Author: Vladimir Nadvornik
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License along
17 * with this program; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
25 // Don't include the <exiv2/version.hpp> file directly
26 // Early Exiv2 versions didn't have version.hpp and the macros.
27 #include <exiv2/exiv2.hpp>
31 // EXIV2_TEST_VERSION is defined in Exiv2 0.15 and newer.
33 #ifndef EXIV2_TEST_VERSION
34 #define EXIV2_TEST_VERSION(major,minor,patch) \
35 ( EXIV2_VERSION >= EXIV2_MAKE_VERSION(major,minor,patch) )
38 #define EXIV2_TEST_VERSION(major,minor,patch) (false)
41 #if EXIV2_TEST_VERSION(0,27,0)
42 #define HAVE_EXIV2_ERROR_CODE
45 #include <sys/types.h>
51 #if EXIV2_TEST_VERSION(0,27,0)
52 #define EXV_PACKAGE "exiv2"
61 #include "filefilter.h"
63 #include "ui-fileops.h"
65 #if EXIV2_TEST_VERSION(0,28,0)
66 #define AnyError Error
67 #define AutoPtr UniquePtr
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 constexpr AltKey alt_keys[] = {
79 {"Xmp.tiff.Orientation", "Exif.Image.Orientation", nullptr},
80 {"Xmp.dc.title", nullptr, "Iptc.Application2.ObjectName" },
81 {"Xmp.photoshop.Urgency", nullptr, "Iptc.Application2.Urgency" },
82 {"Xmp.photoshop.Category", nullptr, "Iptc.Application2.Category" },
83 {"Xmp.photoshop.SupplementalCategory", nullptr, "Iptc.Application2.SuppCategory" },
84 {"Xmp.dc.subject", nullptr, "Iptc.Application2.Keywords" },
85 {"Xmp.iptc.Location", nullptr, "Iptc.Application2.LocationName" },
86 {"Xmp.photoshop.Instruction", nullptr, "Iptc.Application2.SpecialInstructions" },
87 {"Xmp.photoshop.DateCreated", nullptr, "Iptc.Application2.DateCreated" },
88 {"Xmp.dc.creator", nullptr, "Iptc.Application2.Byline" },
89 {"Xmp.photoshop.AuthorsPosition", nullptr, "Iptc.Application2.BylineTitle" },
90 {"Xmp.photoshop.City", nullptr, "Iptc.Application2.City" },
91 {"Xmp.photoshop.State", nullptr, "Iptc.Application2.ProvinceState" },
92 {"Xmp.iptc.CountryCode", nullptr, "Iptc.Application2.CountryCode" },
93 {"Xmp.photoshop.Country", nullptr, "Iptc.Application2.CountryName" },
94 {"Xmp.photoshop.TransmissionReference", nullptr, "Iptc.Application2.TransmissionReference"},
95 {"Xmp.photoshop.Headline", nullptr, "Iptc.Application2.Headline" },
96 {"Xmp.photoshop.Credit", nullptr, "Iptc.Application2.Credit" },
97 {"Xmp.photoshop.Source", nullptr, "Iptc.Application2.Source" },
98 {"Xmp.dc.rights", nullptr, "Iptc.Application2.Copyright" },
99 {"Xmp.dc.description", nullptr, "Iptc.Application2.Caption" },
100 {"Xmp.photoshop.CaptionWriter", nullptr, "Iptc.Application2.Writer" },
103 static void _debug_exception(const char* file,
108 gchar *str = g_locale_from_utf8(e.what(), -1, nullptr, nullptr, nullptr);
109 DEBUG_1("%s:%d:%s:Exiv2: %s", file, line, func, str);
113 #define debug_exception(e) _debug_exception(__FILE__, __LINE__, __func__, e)
117 Exiv2::ExifData::const_iterator exifIter; /* for exif_get_next_item */
118 Exiv2::IptcData::const_iterator iptcIter; /* for exif_get_next_item */
119 #if EXIV2_TEST_VERSION(0,16,0)
120 Exiv2::XmpData::const_iterator xmpIter; /* for exif_get_next_item */
123 virtual ~ExifData() = default;
125 virtual void writeMetadata(gchar * = nullptr)
127 g_critical("Unsupported method of writing metadata");
130 virtual ExifData *original()
135 virtual Exiv2::Image *image() = 0;
137 virtual Exiv2::ExifData &exifData() = 0;
139 virtual Exiv2::IptcData &iptcData() = 0;
141 #if EXIV2_TEST_VERSION(0,16,0)
142 virtual Exiv2::XmpData &xmpData() = 0;
145 virtual void add_jpeg_color_profile(unsigned char *cp_data, guint cp_length) = 0;
147 virtual guchar *get_jpeg_color_profile(guint *data_len) = 0;
149 virtual std::string image_comment() const = 0;
151 virtual void set_image_comment(const std::string& comment) = 0;
154 // This allows read-only access to the original metadata
155 struct ExifDataOriginal : public ExifData
158 Exiv2::Image::AutoPtr image_;
160 /* the icc profile in jpeg is not technically exif - store it here */
161 unsigned char *cp_data_;
166 Exiv2::ExifData emptyExifData_;
167 Exiv2::IptcData emptyIptcData_;
168 #if EXIV2_TEST_VERSION(0,16,0)
169 Exiv2::XmpData emptyXmpData_;
173 ExifDataOriginal(Exiv2::Image::AutoPtr image)
177 image_ = std::move(image);
181 ExifDataOriginal(gchar *path)
187 pathl_ = path_from_utf8(path);
190 image_ = Exiv2::ImageFactory::open(pathl_);
191 image_->readMetadata();
193 #if EXIV2_TEST_VERSION(0,16,0)
194 if (image_->mimeType() == "application/rdf+xml")
196 //Exiv2 sidecar converts xmp to exif and iptc, we don't want it.
197 image_->clearExifData();
198 image_->clearIptcData();
202 #if EXIV2_TEST_VERSION(0,14,0)
203 if (image_->mimeType() == "image/jpeg")
205 /* try to get jpeg color profile */
206 Exiv2::BasicIo &io = image_->io();
207 gint open = io.isopen();
208 if (!open) io.open();
211 auto mapped = static_cast<unsigned char*>(io.mmap());
212 if (mapped) exif_jpeg_parse_color(this, mapped, io.size());
215 if (!open) io.close();
219 catch (Exiv2::AnyError& e)
225 ~ExifDataOriginal() override
227 if (cp_data_) g_free(cp_data_);
228 if (pathl_) g_free(pathl_);
231 Exiv2::Image *image() override
233 if (!valid_) return nullptr;
237 Exiv2::ExifData &exifData () override
239 if (!valid_) return emptyExifData_;
240 return image_->exifData();
243 Exiv2::IptcData &iptcData () override
245 if (!valid_) return emptyIptcData_;
246 return image_->iptcData();
249 #if EXIV2_TEST_VERSION(0,16,0)
250 Exiv2::XmpData &xmpData () override
252 if (!valid_) return emptyXmpData_;
253 return image_->xmpData();
257 void add_jpeg_color_profile(unsigned char *cp_data, guint cp_length) override
259 if (cp_data_) g_free(cp_data_);
261 cp_length_ = cp_length;
264 guchar *get_jpeg_color_profile(guint *data_len) override
268 if (data_len) *data_len = cp_length_;
269 #if GLIB_CHECK_VERSION(2,68,0)
270 return static_cast<unsigned char *>(g_memdup2(cp_data_, cp_length_));
272 return static_cast<unsigned char *>(g_memdup(cp_data_, cp_length_));
278 std::string image_comment() const override
280 return image_.get() ? image_->comment() : "";
283 void set_image_comment(const std::string& comment) override
286 image_->setComment(comment);
290 static void _ExifDataProcessed_update_xmp(gpointer key, gpointer value, gpointer data);
292 // This allows read-write access to the metadata
293 struct ExifDataProcessed : public ExifData
296 std::unique_ptr<ExifDataOriginal> imageData_;
297 std::unique_ptr<ExifDataOriginal> sidecarData_;
299 Exiv2::ExifData exifData_;
300 Exiv2::IptcData iptcData_;
301 #if EXIV2_TEST_VERSION(0,16,0)
302 Exiv2::XmpData xmpData_;
306 ExifDataProcessed(gchar *path, gchar *sidecar_path, GHashTable *modified_xmp)
308 imageData_ = std::make_unique<ExifDataOriginal>(path);
309 sidecarData_ = nullptr;
310 #if EXIV2_TEST_VERSION(0,16,0)
313 sidecarData_ = std::make_unique<ExifDataOriginal>(sidecar_path);
314 xmpData_ = sidecarData_->xmpData();
318 xmpData_ = imageData_->xmpData();
322 exifData_ = imageData_->exifData();
323 iptcData_ = imageData_->iptcData();
324 #if EXIV2_TEST_VERSION(0,17,0)
327 syncExifWithXmp(exifData_, xmpData_);
331 DEBUG_1("Exiv2: Catching bug\n");
336 g_hash_table_foreach(modified_xmp, _ExifDataProcessed_update_xmp, this);
340 ExifData *original() override
342 return imageData_.get();
345 void writeMetadata(gchar *path = nullptr) override
349 #if EXIV2_TEST_VERSION(0,17,0)
350 if (options->metadata.save_legacy_IPTC)
351 copyXmpToIptc(xmpData_, iptcData_);
355 copyXmpToExif(xmpData_, exifData_);
357 Exiv2::Image *image = imageData_->image();
359 #ifdef HAVE_EXIV2_ERROR_CODE
360 #if EXIV2_TEST_VERSION(0,28,0)
361 if (!image) throw Exiv2::Error(Exiv2::ErrorCode::kerInputDataReadFailed);
363 if (!image) throw Exiv2::Error(Exiv2::kerInputDataReadFailed);
366 if (!image) throw Exiv2::Error(21);
368 image->setExifData(exifData_);
369 image->setIptcData(iptcData_);
370 #if EXIV2_TEST_VERSION(0,16,0)
371 image->setXmpData(xmpData_);
373 image->writeMetadata();
377 #if EXIV2_TEST_VERSION(0,17,0)
378 gchar *pathl = path_from_utf8(path);;
380 auto sidecar = Exiv2::ImageFactory::create(Exiv2::ImageType::xmp, pathl);
384 sidecar->setXmpData(xmpData_);
385 sidecar->writeMetadata();
387 #ifdef HAVE_EXIV2_ERROR_CODE
388 throw Exiv2::Error(Exiv2::kerNotAnImage, "xmp");
390 throw Exiv2::Error(3, "xmp");
396 Exiv2::Image *image() override
398 return imageData_->image();
401 Exiv2::ExifData &exifData () override
406 Exiv2::IptcData &iptcData () override
411 #if EXIV2_TEST_VERSION(0,16,0)
412 Exiv2::XmpData &xmpData () override
418 void add_jpeg_color_profile(unsigned char *cp_data, guint cp_length) override
420 imageData_->add_jpeg_color_profile(cp_data, cp_length);
423 guchar *get_jpeg_color_profile(guint *data_len) override
425 return imageData_->get_jpeg_color_profile(data_len);
428 std::string image_comment() const override
430 return imageData_->image_comment();
433 void set_image_comment(const std::string& comment) override
435 imageData_->set_image_comment(comment);
446 #ifdef EXV_ENABLE_NLS
447 bind_textdomain_codeset (EXV_PACKAGE, "UTF-8");
450 #ifdef EXV_ENABLE_BMFF
451 Exiv2::enableBMFF(TRUE);
457 static void _ExifDataProcessed_update_xmp(gpointer key, gpointer value, gpointer data)
459 exif_update_metadata(static_cast<ExifData *>(data), static_cast<gchar *>(key), static_cast<GList *>(value));
462 ExifData *exif_read(gchar *path, gchar *sidecar_path, GHashTable *modified_xmp)
464 DEBUG_1("exif read %s, sidecar: %s", path, sidecar_path ? sidecar_path : "-");
466 return new ExifDataProcessed(path, sidecar_path, modified_xmp);
468 catch (Exiv2::AnyError& e) {
475 gboolean exif_write(ExifData *exif)
478 exif->writeMetadata();
481 catch (Exiv2::AnyError& e) {
487 gboolean exif_write_sidecar(ExifData *exif, gchar *path)
490 exif->writeMetadata(path);
493 catch (Exiv2::AnyError& e) {
501 void exif_free(ExifData *exif)
504 g_assert(dynamic_cast<ExifDataProcessed *>(exif)); // this should not be called on ExifDataOriginal
508 ExifData *exif_get_original(ExifData *exif)
510 return exif->original();
514 ExifItem *exif_get_item(ExifData *exif, const gchar *key)
517 Exiv2::Metadatum *item = nullptr;
519 Exiv2::ExifKey ekey(key);
520 auto pos = exif->exifData().findKey(ekey);
521 if (pos == exif->exifData().end()) return nullptr;
524 catch (Exiv2::AnyError& e) {
526 Exiv2::IptcKey ekey(key);
527 auto pos = exif->iptcData().findKey(ekey);
528 if (pos == exif->iptcData().end()) return nullptr;
531 catch (Exiv2::AnyError& e) {
532 #if EXIV2_TEST_VERSION(0,16,0)
533 Exiv2::XmpKey ekey(key);
534 auto pos = exif->xmpData().findKey(ekey);
535 if (pos == exif->xmpData().end()) return nullptr;
540 return reinterpret_cast<ExifItem *>(item);
542 catch (Exiv2::AnyError& e) {
548 ExifItem *exif_add_item(ExifData *exif, const gchar *key)
551 Exiv2::Metadatum *item = nullptr;
553 Exiv2::ExifKey ekey(key);
554 exif->exifData().add(ekey, nullptr);
555 auto pos = exif->exifData().end(); // a hack, there should be a better way to get the currently added item
559 catch (Exiv2::AnyError& e) {
561 Exiv2::IptcKey ekey(key);
562 exif->iptcData().add(ekey, nullptr);
563 auto pos = exif->iptcData().end();
567 catch (Exiv2::AnyError& e) {
568 #if EXIV2_TEST_VERSION(0,16,0)
569 Exiv2::XmpKey ekey(key);
570 exif->xmpData().add(ekey, nullptr);
571 auto pos = exif->xmpData().end();
577 return reinterpret_cast<ExifItem *>(item);
579 catch (Exiv2::AnyError& e) {
586 ExifItem *exif_get_first_item(ExifData *exif)
589 exif->exifIter = exif->exifData().begin();
590 exif->iptcIter = exif->iptcData().begin();
591 #if EXIV2_TEST_VERSION(0,16,0)
592 exif->xmpIter = exif->xmpData().begin();
594 if (exif->exifIter != exif->exifData().end())
596 const Exiv2::Metadatum *item = &*exif->exifIter;
598 return (ExifItem *)item;
600 if (exif->iptcIter != exif->iptcData().end())
602 const Exiv2::Metadatum *item = &*exif->iptcIter;
604 return (ExifItem *)item;
606 #if EXIV2_TEST_VERSION(0,16,0)
607 if (exif->xmpIter != exif->xmpData().end())
609 const Exiv2::Metadatum *item = &*exif->xmpIter;
611 return (ExifItem *)item;
617 catch (Exiv2::AnyError& e) {
623 ExifItem *exif_get_next_item(ExifData *exif)
626 if (exif->exifIter != exif->exifData().end())
628 const Exiv2::Metadatum *item = &*exif->exifIter;
630 return (ExifItem *)item;
632 if (exif->iptcIter != exif->iptcData().end())
634 const Exiv2::Metadatum *item = &*exif->iptcIter;
636 return (ExifItem *)item;
638 #if EXIV2_TEST_VERSION(0,16,0)
639 if (exif->xmpIter != exif->xmpData().end())
641 const Exiv2::Metadatum *item = &*exif->xmpIter;
643 return (ExifItem *)item;
648 catch (Exiv2::AnyError& e) {
654 char *exif_item_get_tag_name(ExifItem *item)
657 if (!item) return nullptr;
658 return g_strdup((reinterpret_cast<Exiv2::Metadatum *>(item))->key().c_str());
660 catch (Exiv2::AnyError& e) {
666 guint exif_item_get_tag_id(ExifItem *item)
670 return (reinterpret_cast<Exiv2::Metadatum *>(item))->tag();
672 catch (Exiv2::AnyError& e) {
678 guint exif_item_get_elements(ExifItem *item)
682 return (reinterpret_cast<Exiv2::Metadatum *>(item))->count();
684 catch (Exiv2::AnyError& e) {
690 char *exif_item_get_data(ExifItem *item, guint *data_len)
693 if (!item) return nullptr;
694 auto md = reinterpret_cast<Exiv2::Metadatum *>(item);
695 if (data_len) *data_len = md->size();
696 auto data = static_cast<char *>(g_malloc(md->size()));
697 long res = md->copy(reinterpret_cast<Exiv2::byte *>(data), Exiv2::littleEndian /* should not matter */);
698 g_assert(res == md->size());
701 catch (Exiv2::AnyError& e) {
707 char *exif_item_get_description(ExifItem *item)
710 if (!item) return nullptr;
711 return utf8_validate_or_convert((reinterpret_cast<Exiv2::Metadatum *>(item))->tagLabel().c_str());
713 catch (std::exception& e) {
719 invalidTypeId, unsignedByte, asciiString, unsignedShort,
720 unsignedLong, unsignedRational, signedByte, undefined,
721 signedShort, signedLong, signedRational, string,
722 date, time, comment, directory,
723 xmpText, xmpAlt, xmpBag, xmpSeq,
727 static guint format_id_trans_tbl [] = {
729 EXIF_FORMAT_BYTE_UNSIGNED,
731 EXIF_FORMAT_SHORT_UNSIGNED,
732 EXIF_FORMAT_LONG_UNSIGNED,
733 EXIF_FORMAT_RATIONAL_UNSIGNED,
735 EXIF_FORMAT_UNDEFINED,
738 EXIF_FORMAT_RATIONAL,
742 EXIF_FORMAT_UNDEFINED,
751 guint exif_item_get_format_id(ExifItem *item)
754 if (!item) return EXIF_FORMAT_UNKNOWN;
755 guint id = (reinterpret_cast<Exiv2::Metadatum *>(item))->typeId();
756 if (id >= (sizeof(format_id_trans_tbl) / sizeof(format_id_trans_tbl[0])) ) return EXIF_FORMAT_UNKNOWN;
757 return format_id_trans_tbl[id];
759 catch (Exiv2::AnyError& e) {
761 return EXIF_FORMAT_UNKNOWN;
765 const char *exif_item_get_format_name(ExifItem *item, gboolean)
768 if (!item) return nullptr;
769 return (reinterpret_cast<Exiv2::Metadatum *>(item))->typeName();
771 catch (Exiv2::AnyError& e) {
778 gchar *exif_item_get_data_as_text(ExifItem *item, ExifData *exif)
781 if (!item) return nullptr;
782 auto metadatum = reinterpret_cast<Exiv2::Metadatum *>(item);
783 #if EXIV2_TEST_VERSION(0,17,0)
784 return utf8_validate_or_convert(metadatum->print(&exif->exifData()).c_str());
786 std::stringstream str;
787 Exiv2::Exifdatum *exifdatum;
788 Exiv2::Iptcdatum *iptcdatum;
789 #if EXIV2_TEST_VERSION(0,16,0)
790 Exiv2::Xmpdatum *xmpdatum;
792 if ((exifdatum = dynamic_cast<Exiv2::Exifdatum *>(metadatum)))
794 else if ((iptcdatum = dynamic_cast<Exiv2::Iptcdatum *>(metadatum)))
796 #if EXIV2_TEST_VERSION(0,16,0)
797 else if ((xmpdatum = dynamic_cast<Exiv2::Xmpdatum *>(metadatum)))
801 return utf8_validate_or_convert(str.str().c_str());
804 catch (Exiv2::AnyError& e) {
809 gchar *exif_item_get_string(ExifItem *item, int idx)
812 if (!item) return nullptr;
813 auto em = reinterpret_cast<Exiv2::Metadatum *>(item);
814 #if EXIV2_TEST_VERSION(0,16,0)
815 std::string str = em->toString(idx);
817 std::string str = em->toString(); /**< @FIXME ?? */
819 if (idx == 0 && str.empty()) str = em->toString();
820 if (str.length() > 5 && str.substr(0, 5) == "lang=")
822 std::string::size_type pos = str.find_first_of(' ');
823 if (pos != std::string::npos) str = str.substr(pos+1);
826 return utf8_validate_or_convert(str.c_str());
828 catch (Exiv2::AnyError& e) {
834 gint exif_item_get_integer(ExifItem *item, gint *value)
837 if (!item || exif_item_get_elements(item) == 0) return 0;
839 #if EXIV2_TEST_VERSION(0,28,0)
840 *value = ((Exiv2::Metadatum *)item)->toInt64();
842 *value = (reinterpret_cast<Exiv2::Metadatum *>(item))->toLong();
846 catch (Exiv2::AnyError& e) {
852 ExifRational *exif_item_get_rational(ExifItem *item, gint *sign, guint n)
855 if (!item) return nullptr;
856 if (n >= exif_item_get_elements(item)) return nullptr;
857 Exiv2::Rational v = (reinterpret_cast<Exiv2::Metadatum *>(item))->toRational(n);
858 static ExifRational ret;
861 if (sign) *sign = ((reinterpret_cast<Exiv2::Metadatum *>(item))->typeId() == Exiv2::signedRational);
864 catch (Exiv2::AnyError& e) {
870 gchar *exif_get_tag_description_by_key(const gchar *key)
873 Exiv2::ExifKey ekey(key);
874 return utf8_validate_or_convert(ekey.tagLabel().c_str());
876 catch (Exiv2::AnyError& e) {
878 Exiv2::IptcKey ikey(key);
879 return utf8_validate_or_convert(ikey.tagLabel().c_str());
881 catch (Exiv2::AnyError& e) {
883 #if EXIV2_TEST_VERSION(0,16,0)
884 Exiv2::XmpKey xkey(key);
885 return utf8_validate_or_convert(xkey.tagLabel().c_str());
888 catch (Exiv2::AnyError& e) {
897 static const AltKey *find_alt_key(const gchar *xmp_key)
899 for (const auto& k : alt_keys)
900 if (strcmp(xmp_key, k.xmp_key) == 0) return &k;
904 static gint exif_update_metadata_simple(ExifData *exif, const gchar *key, const GList *values)
907 const GList *work = values;
910 Exiv2::ExifKey ekey(key);
912 auto pos = exif->exifData().findKey(ekey);
913 while (pos != exif->exifData().end())
915 exif->exifData().erase(pos);
916 pos = exif->exifData().findKey(ekey);
921 exif->exifData()[key] = static_cast<gchar *>(work->data);
925 catch (Exiv2::AnyError& e) {
926 #if EXIV2_TEST_VERSION(0,16,0)
930 Exiv2::IptcKey ekey(key);
931 auto pos = exif->iptcData().findKey(ekey);
932 while (pos != exif->iptcData().end())
934 exif->iptcData().erase(pos);
935 pos = exif->iptcData().findKey(ekey);
940 exif->iptcData()[key] = static_cast<gchar *>(work->data);
944 #if EXIV2_TEST_VERSION(0,16,0)
945 catch (Exiv2::AnyError& e) {
946 Exiv2::XmpKey ekey(key);
947 auto pos = exif->xmpData().findKey(ekey);
948 while (pos != exif->xmpData().end())
950 exif->xmpData().erase(pos);
951 pos = exif->xmpData().findKey(ekey);
956 exif->xmpData()[key] = static_cast<gchar *>(work->data);
964 catch (Exiv2::AnyError& e) {
970 gint exif_update_metadata(ExifData *exif, const gchar *key, const GList *values)
972 gint ret = exif_update_metadata_simple(exif, key, values);
975 #if !EXIV2_TEST_VERSION(0,17,0)
976 TRUE || /* no conversion support */
978 !values || /* deleting item */
979 !ret /* writing to the explicitly given xmp tag failed */
982 /* deleted xmp metadatum can't be converted, we have to delete also the corresponding legacy tag */
983 /* if we can't write xmp, update at least the legacy tag */
984 const AltKey *alt_key = find_alt_key(key);
985 if (alt_key && alt_key->iptc_key)
986 ret = exif_update_metadata_simple(exif, alt_key->iptc_key, values);
988 if (alt_key && alt_key->exif_key)
989 ret = exif_update_metadata_simple(exif, alt_key->exif_key, values);
995 static GList *exif_add_value_to_glist(GList *list, Exiv2::Metadatum &item, MetadataFormat format, const Exiv2::ExifData *metadata)
997 #if EXIV2_TEST_VERSION(0,16,0)
998 Exiv2::TypeId id = item.typeId();
999 if (format == METADATA_FORMATTED ||
1000 id == Exiv2::asciiString ||
1001 id == Exiv2::undefined ||
1002 id == Exiv2::string ||
1003 id == Exiv2::date ||
1004 id == Exiv2::time ||
1005 id == Exiv2::xmpText ||
1006 id == Exiv2::langAlt ||
1007 id == Exiv2::comment
1011 /* read as a single entry */
1014 if (format == METADATA_FORMATTED)
1016 #if EXIV2_TEST_VERSION(0,17,0)
1018 #if EXIV2_TEST_VERSION(0,18,0)
1023 std::stringstream stream;
1024 Exiv2::Exifdatum *exifdatum;
1025 Exiv2::Iptcdatum *iptcdatum;
1026 #if EXIV2_TEST_VERSION(0,16,0)
1027 Exiv2::Xmpdatum *xmpdatum;
1029 if ((exifdatum = dynamic_cast<Exiv2::Exifdatum *>(&item)))
1030 stream << *exifdatum;
1031 else if ((iptcdatum = dynamic_cast<Exiv2::Iptcdatum *>(&item)))
1032 stream << *iptcdatum;
1033 #if EXIV2_TEST_VERSION(0,16,0)
1034 else if ((xmpdatum = dynamic_cast<Exiv2::Xmpdatum *>(&item)))
1035 stream << *xmpdatum;
1039 if (str.length() > 1024)
1041 /* truncate very long strings, they cause problems in gui */
1048 str = item.toString();
1050 if (str.length() > 5 && str.substr(0, 5) == "lang=")
1052 std::string::size_type pos = str.find_first_of(' ');
1053 if (pos != std::string::npos) str = str.substr(pos+1);
1055 list = g_list_append(list, utf8_validate_or_convert(str.c_str()));
1056 #if EXIV2_TEST_VERSION(0,16,0)
1060 /* read as a list */
1062 for (i = 0; i < item.count(); i++)
1063 list = g_list_append(list, utf8_validate_or_convert(item.toString(i).c_str()));
1069 static GList *exif_get_metadata_simple(ExifData *exif, const gchar *key, MetadataFormat format)
1071 GList *list = nullptr;
1074 Exiv2::ExifKey ekey(key);
1075 auto pos = exif->exifData().findKey(ekey);
1076 if (pos != exif->exifData().end())
1077 list = exif_add_value_to_glist(list, *pos, format, &exif->exifData());
1080 catch (Exiv2::AnyError& e) {
1082 Exiv2::IptcKey ekey(key);
1083 auto pos = exif->iptcData().begin();
1084 while (pos != exif->iptcData().end())
1086 if (pos->key() == key)
1087 list = exif_add_value_to_glist(list, *pos, format, nullptr);
1092 catch (Exiv2::AnyError& e) {
1093 #if EXIV2_TEST_VERSION(0,16,0)
1094 Exiv2::XmpKey ekey(key);
1095 auto pos = exif->xmpData().findKey(ekey);
1096 if (pos != exif->xmpData().end())
1097 list = exif_add_value_to_glist(list, *pos, format, nullptr);
1102 catch (Exiv2::AnyError& e) {
1108 GList *exif_get_metadata(ExifData *exif, const gchar *key, MetadataFormat format)
1110 GList *list = nullptr;
1112 if (!key) return nullptr;
1114 if (format == METADATA_FORMATTED)
1118 text = exif_get_formatted_by_key(exif, key, &key_valid);
1119 if (key_valid) return g_list_append(nullptr, text);
1122 list = exif_get_metadata_simple(exif, key, format);
1124 /* the following code can be ifdefed out as soon as Exiv2 supports it */
1127 const AltKey *alt_key = find_alt_key(key);
1128 if (alt_key && alt_key->iptc_key)
1129 list = exif_get_metadata_simple(exif, alt_key->iptc_key, format);
1131 #if !EXIV2_TEST_VERSION(0,17,0)
1132 /* with older Exiv2 versions exif is not synced */
1133 if (!list && alt_key && alt_key->exif_key)
1134 list = exif_get_metadata_simple(exif, alt_key->exif_key, format);
1141 void exif_add_jpeg_color_profile(ExifData *exif, unsigned char *cp_data, guint cp_length)
1143 exif->add_jpeg_color_profile(cp_data, cp_length);
1146 guchar *exif_get_color_profile(ExifData *exif, guint *data_len)
1148 guchar *ret = exif->get_jpeg_color_profile(data_len);
1149 if (ret) return ret;
1151 ExifItem *prof_item = exif_get_item(exif, "Exif.Image.InterColorProfile");
1152 if (prof_item && exif_item_get_format_id(prof_item) == EXIF_FORMAT_UNDEFINED)
1153 ret = reinterpret_cast<guchar *>(exif_item_get_data(prof_item, data_len));
1157 gchar* exif_get_image_comment(FileData* fd)
1159 if (!fd || !fd->exif)
1160 return g_strdup("");
1162 return g_strdup(fd->exif->image_comment().c_str());
1165 void exif_set_image_comment(FileData* fd, const gchar* comment)
1167 if (!fd || !fd->exif)
1170 fd->exif->set_image_comment(comment ? comment : "");
1174 #if EXIV2_TEST_VERSION(0,17,90)
1176 guchar *exif_get_preview(ExifData *exif, guint *data_len, gint requested_width, gint requested_height)
1178 if (!exif) return nullptr;
1180 if (!exif->image()) return nullptr;
1182 std::string const path = exif->image()->io().path();
1183 /* given image pathname, first do simple (and fast) file extension test */
1184 gboolean is_raw = filter_file_class(path.c_str(), FORMAT_CLASS_RAWIMAGE);
1186 if (!is_raw && requested_width == 0) return nullptr;
1190 Exiv2::PreviewManager pm(*exif->image());
1192 Exiv2::PreviewPropertiesList list = pm.getPreviewProperties();
1196 Exiv2::PreviewPropertiesList::iterator pos;
1197 auto last = --list.end();
1199 if (requested_width == 0)
1201 pos = last; // the largest
1208 if (pos->width_ >= static_cast<uint32_t>(requested_width) &&
1209 pos->height_ >= static_cast<uint32_t>(requested_height)) break;
1213 // we are not interested in smaller thumbnails in normal image formats - we can use full image instead
1216 if (pos->width_ < static_cast<uint32_t>(requested_width) || pos->height_ < static_cast<uint32_t>(requested_height)) return nullptr;
1220 Exiv2::PreviewImage image = pm.getPreviewImage(*pos);
1222 // Let's not touch data_len until we finish copy.
1223 // Just in case we run into OOM.
1224 size_t img_sz = image.size();
1225 Exiv2::byte* b = new Exiv2::byte[img_sz];
1226 std::copy_n(image.pData(), img_sz, b);
1232 catch (Exiv2::AnyError& e) {
1238 void exif_free_preview(guchar *buf)
1240 delete[] static_cast<Exiv2::byte*>(buf);
1244 #if !EXIV2_TEST_VERSION(0,17,90)
1246 /* This is a dirty hack to support raw file preview, bassed on
1247 tiffparse.cpp from Exiv2 examples */
1252 RawFile(Exiv2::BasicIo &io);
1255 const Exiv2::Value *find(uint16_t tag, uint16_t group);
1257 unsigned long preview_offset();
1261 Exiv2::TiffComponent::AutoPtr rootDir;
1262 Exiv2::BasicIo &io_;
1263 const Exiv2::byte *map_data;
1265 unsigned long offset;
1275 static GList *exif_unmap_list = 0;
1277 guchar *exif_get_preview(ExifData *exif, guint *data_len, gint requested_width, gint requested_height)
1279 unsigned long offset;
1281 if (!exif) return NULL;
1282 if (!exif->image()) return NULL;
1284 std::string const path = exif->image()->io().path();
1286 /* given image pathname, first do simple (and fast) file extension test */
1287 if (!filter_file_class(path.c_str(), FORMAT_CLASS_RAWIMAGE)) return NULL;
1296 RawFile rf(exif->image()->io());
1297 offset = rf.preview_offset();
1298 DEBUG_1("%s: offset %lu", path.c_str(), offset);
1300 fd = open(path.c_str(), O_RDONLY);
1306 if (fstat(fd, &st) == -1)
1311 map_len = st.st_size;
1312 map_data = (guchar *) mmap(0, map_len, PROT_READ, MAP_PRIVATE, fd, 0);
1314 if (map_data == MAP_FAILED)
1318 *data_len = map_len - offset;
1319 ud = g_new(UnmapData, 1);
1320 ud->ptr = map_data + offset;
1321 ud->map_data = map_data;
1322 ud->map_len = map_len;
1324 exif_unmap_list = g_list_prepend(exif_unmap_list, ud);
1328 catch (Exiv2::AnyError& e) {
1335 void exif_free_preview(guchar *buf)
1337 GList *work = exif_unmap_list;
1341 UnmapData *ud = (UnmapData *)work->data;
1344 munmap(ud->map_data, ud->map_len);
1345 exif_unmap_list = g_list_remove_link(exif_unmap_list, work);
1351 g_assert_not_reached();
1354 using namespace Exiv2;
1356 RawFile::RawFile(BasicIo &io) : io_(io), map_data(NULL), map_len(0), offset(0)
1360 if (fstat(fd, &st) == -1)
1364 map_len = st.st_size;
1365 map_data = (Exiv2::byte *) mmap(0, map_len, PROT_READ, MAP_PRIVATE, fd, 0);
1366 if (map_data == MAP_FAILED)
1371 if (io.open() != 0) {
1372 throw Error(9, io.path(), strError());
1375 map_data = io.mmap();
1376 map_len = io.size();
1379 type = Exiv2::ImageFactory::getType(map_data, map_len);
1381 #if EXIV2_TEST_VERSION(0,16,0)
1382 std::unique_ptr<TiffHeaderBase> tiffHeader;
1384 std::unique_ptr<TiffHeade2> tiffHeader;
1386 std::unique_ptr<Cr2Header> cr2Header;
1389 case Exiv2::ImageType::tiff:
1390 tiffHeader = std::make_unique<TiffHeade2>();
1392 case Exiv2::ImageType::cr2:
1393 cr2Header = std::make_unique<Cr2Header>();
1395 #if EXIV2_TEST_VERSION(0,16,0)
1396 case Exiv2::ImageType::orf:
1397 tiffHeader = std::make_unique<OrfHeader>();
1400 #if EXIV2_TEST_VERSION(0,13,0)
1401 case Exiv2::ImageType::raf:
1402 if (map_len < 84 + 4) throw Error(14);
1403 offset = getULong(map_data + 84, bigEndian);
1406 case Exiv2::ImageType::crw:
1408 // Parse the image, starting with a CIFF header component
1409 auto parseTree = std::make_unique<Exiv2::CiffHeader>();
1410 parseTree->read(map_data, map_len);
1411 CiffComponent *entry = parseTree->findComponent(0x2007, 0);
1412 if (entry) offset = entry->pData() - map_data;
1417 throw Error(3, "RAW");
1420 // process tiff-like formats
1422 TiffCompFactoryFct createFct = TiffCreator::create;
1424 rootDir = createFct(Tag::root, Group::none);
1425 if (0 == rootDir.get()) {
1426 throw Error(1, "No root element defined in TIFF structure");
1431 if (!tiffHeader->read(map_data, map_len)) throw Error(3, "TIFF");
1432 #if EXIV2_TEST_VERSION(0,16,0)
1433 rootDir->setStart(map_data + tiffHeader->offset());
1435 rootDir->setStart(map_data + tiffHeader->ifdOffset());
1441 rootDir->setStart(map_data + cr2Header->offset());
1444 TiffRwState::AutoPtr state(new TiffRwState(tiffHeader ? tiffHeader->byteOrder() : littleEndian, 0, createFct));
1446 TiffReader reader(map_data,
1451 rootDir->accept(reader);
1454 RawFile::~RawFile(void)
1460 const Value * RawFile::find(uint16_t tag, uint16_t group)
1462 TiffFinder finder(tag, group);
1463 rootDir->accept(finder);
1464 TiffEntryBase* te = dynamic_cast<TiffEntryBase*>(finder.result());
1467 DEBUG_1("(tag: %04x %04x) ", tag, group);
1468 return te->pValue();
1474 unsigned long RawFile::preview_offset(void)
1477 if (offset) return offset;
1479 if (type == Exiv2::ImageType::cr2)
1481 val = find(0x111, Group::ifd0);
1482 #if EXIV2_TEST_VERSION(0,28,0)
1483 if (val) return val->toInt64();
1485 if (val) return val->tolong();
1490 val = find(0x201, Group::sub0_0);
1491 #if EXIV2_TEST_VERSION(0,28,0)
1492 if (val) return val->toInt64();
1494 if (val) return val->tolong();
1497 val = find(0x201, Group::ifd0);
1498 #if EXIV2_TEST_VERSION(0,28,0)
1499 if (val) return val->toInt64();
1501 if (val) return val->tolong();
1504 val = find(0x201, Group::ignr); // for PEF files, originally it was probably ifd2
1505 #if EXIV2_TEST_VERSION(0,28,0)
1506 if (val) return val->toInt64();
1508 if (val) return val->tolong();
1511 val = find(0x111, Group::sub0_1); // dng
1512 #if EXIV2_TEST_VERSION(0,28,0)
1513 if (val) return val->toInt64();
1515 if (val) return val->tolong();
1527 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */