+/*
+ * Copyright (C) 2008 - 2016 The Geeqie Team
+ *
+ * Author: Vladimir Nadvornik
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
+#include "config.h"
#ifdef HAVE_EXIV2
#include <exiv2/image.hpp>
#include <exiv2/exif.hpp>
#include <iostream>
+#include <string>
+
+// EXIV2_TEST_VERSION is defined in Exiv2 0.15 and newer.
+#ifndef EXIV2_TEST_VERSION
+# define EXIV2_TEST_VERSION(major,minor,patch) \
+ ( EXIV2_VERSION >= EXIV2_MAKE_VERSION(major,minor,patch) )
+#endif
+
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+
+#if !EXIV2_TEST_VERSION(0,17,90)
+#include <exiv2/tiffparser.hpp>
+#include <exiv2/tiffcomposite.hpp>
+#include <exiv2/tiffvisitor.hpp>
+#include <exiv2/tiffimage.hpp>
+#include <exiv2/cr2image.hpp>
+#include <exiv2/crwimage.hpp>
+#if EXIV2_TEST_VERSION(0,16,0)
+#include <exiv2/orfimage.hpp>
+#endif
+#if EXIV2_TEST_VERSION(0,13,0)
+#include <exiv2/rafimage.hpp>
+#endif
+#include <exiv2/futils.hpp>
+#else
+#include <exiv2/preview.hpp>
+#endif
+
+#if EXIV2_TEST_VERSION(0,17,0)
+#include <exiv2/convert.hpp>
+#include <exiv2/xmpsidecar.hpp>
+#endif
extern "C" {
+#include <glib.h>
-#include <glib.h>
+#include "main.h"
#include "exif.h"
+#include "filefilter.h"
+#include "ui_fileops.h"
+
+#include "misc.h"
+}
+
+typedef struct _AltKey AltKey;
+
+struct _AltKey
+{
+ const gchar *xmp_key;
+ const gchar *exif_key;
+ const gchar *iptc_key;
+};
+
+/* this is a list of keys that should be converted, even with the older Exiv2 which does not support it directly */
+static const AltKey alt_keys[] = {
+ {"Xmp.tiff.Orientation", "Exif.Image.Orientation", NULL},
+ {"Xmp.dc.title", NULL, "Iptc.Application2.ObjectName" },
+ {"Xmp.photoshop.Urgency", NULL, "Iptc.Application2.Urgency" },
+ {"Xmp.photoshop.Category", NULL, "Iptc.Application2.Category" },
+ {"Xmp.photoshop.SupplementalCategory", NULL, "Iptc.Application2.SuppCategory" },
+ {"Xmp.dc.subject", NULL, "Iptc.Application2.Keywords" },
+ {"Xmp.iptc.Location", NULL, "Iptc.Application2.LocationName" },
+ {"Xmp.photoshop.Instruction", NULL, "Iptc.Application2.SpecialInstructions" },
+ {"Xmp.photoshop.DateCreated", NULL, "Iptc.Application2.DateCreated" },
+ {"Xmp.dc.creator", NULL, "Iptc.Application2.Byline" },
+ {"Xmp.photoshop.AuthorsPosition", NULL, "Iptc.Application2.BylineTitle" },
+ {"Xmp.photoshop.City", NULL, "Iptc.Application2.City" },
+ {"Xmp.photoshop.State", NULL, "Iptc.Application2.ProvinceState" },
+ {"Xmp.iptc.CountryCode", NULL, "Iptc.Application2.CountryCode" },
+ {"Xmp.photoshop.Country", NULL, "Iptc.Application2.CountryName" },
+ {"Xmp.photoshop.TransmissionReference", NULL, "Iptc.Application2.TransmissionReference"},
+ {"Xmp.photoshop.Headline", NULL, "Iptc.Application2.Headline" },
+ {"Xmp.photoshop.Credit", NULL, "Iptc.Application2.Credit" },
+ {"Xmp.photoshop.Source", NULL, "Iptc.Application2.Source" },
+ {"Xmp.dc.rights", NULL, "Iptc.Application2.Copyright" },
+ {"Xmp.dc.description", NULL, "Iptc.Application2.Caption" },
+ {"Xmp.photoshop.CaptionWriter", NULL, "Iptc.Application2.Writer" },
+ {NULL, NULL, NULL}
+ };
+
+static void _debug_exception(const char* file,
+ int line,
+ const char* func,
+ Exiv2::AnyError& e)
+{
+ gchar *str = g_locale_from_utf8(e.what(), -1, NULL, NULL, NULL);
+ DEBUG_1("%s:%d:%s:Exiv2: %s", file, line, func, str);
+ g_free(str);
+}
+
+#define debug_exception(e) _debug_exception(__FILE__, __LINE__, __func__, e)
struct _ExifData
{
- Exiv2::ExifData exifData;
- Exiv2::ExifData::const_iterator iter;
+ Exiv2::ExifData::const_iterator exifIter; /* for exif_get_next_item */
+ Exiv2::IptcData::const_iterator iptcIter; /* for exif_get_next_item */
+#if EXIV2_TEST_VERSION(0,16,0)
+ Exiv2::XmpData::const_iterator xmpIter; /* for exif_get_next_item */
+#endif
+
+ virtual ~_ExifData()
+ {
+ }
+
+ virtual void writeMetadata(gchar *path = NULL)
+ {
+ g_critical("Unsupported method of writing metadata");
+ }
+
+ virtual ExifData *original()
+ {
+ return NULL;
+ }
+
+ virtual Exiv2::Image *image() = 0;
+
+ virtual Exiv2::ExifData &exifData() = 0;
+
+ virtual Exiv2::IptcData &iptcData() = 0;
+
+#if EXIV2_TEST_VERSION(0,16,0)
+ virtual Exiv2::XmpData &xmpData() = 0;
+#endif
+
+ virtual void add_jpeg_color_profile(unsigned char *cp_data, guint cp_length) = 0;
+
+ virtual guchar *get_jpeg_color_profile(guint *data_len) = 0;
+
+ virtual std::string image_comment() const = 0;
+
+ virtual void set_image_comment(const std::string& comment) = 0;
+};
+
+// This allows read-only access to the original metadata
+struct _ExifDataOriginal : public _ExifData
+{
+protected:
+ Exiv2::Image::AutoPtr image_;
+
+ /* the icc profile in jpeg is not technically exif - store it here */
+ unsigned char *cp_data_;
+ guint cp_length_;
+ gboolean valid_;
+ gchar *pathl_;
+
+ Exiv2::ExifData emptyExifData_;
+ Exiv2::IptcData emptyIptcData_;
+#if EXIV2_TEST_VERSION(0,16,0)
+ Exiv2::XmpData emptyXmpData_;
+#endif
+
+public:
+ _ExifDataOriginal(Exiv2::Image::AutoPtr image)
+ {
+ cp_data_ = NULL;
+ cp_length_ = 0;
+ image_ = image;
+ valid_ = TRUE;
+ }
+
+ _ExifDataOriginal(gchar *path)
+ {
+ cp_data_ = NULL;
+ cp_length_ = 0;
+ valid_ = TRUE;
+
+ pathl_ = path_from_utf8(path);
+ try
+ {
+ image_ = Exiv2::ImageFactory::open(pathl_);
+// g_assert (image.get() != 0);
+ image_->readMetadata();
+
+#if EXIV2_TEST_VERSION(0,16,0)
+ if (image_->mimeType() == "application/rdf+xml")
+ {
+ //Exiv2 sidecar converts xmp to exif and iptc, we don't want it.
+ image_->clearExifData();
+ image_->clearIptcData();
+ }
+#endif
+
+#if EXIV2_TEST_VERSION(0,14,0)
+ if (image_->mimeType() == "image/jpeg")
+ {
+ /* try to get jpeg color profile */
+ Exiv2::BasicIo &io = image_->io();
+ gint open = io.isopen();
+ if (!open) io.open();
+ if (io.isopen())
+ {
+ unsigned char *mapped = (unsigned char*)io.mmap();
+ if (mapped) exif_jpeg_parse_color(this, mapped, io.size());
+ io.munmap();
+ }
+ if (!open) io.close();
+ }
+#endif
+ }
+ catch (Exiv2::AnyError& e)
+ {
+ valid_ = FALSE;
+ }
+ }
+
+ virtual ~_ExifDataOriginal()
+ {
+ if (cp_data_) g_free(cp_data_);
+ if (pathl_) g_free(pathl_);
+ }
+
+ virtual Exiv2::Image *image()
+ {
+ if (!valid_) return NULL;
+ return image_.get();
+ }
+
+ virtual Exiv2::ExifData &exifData ()
+ {
+ if (!valid_) return emptyExifData_;
+ return image_->exifData();
+ }
+
+ virtual Exiv2::IptcData &iptcData ()
+ {
+ if (!valid_) return emptyIptcData_;
+ return image_->iptcData();
+ }
+
+#if EXIV2_TEST_VERSION(0,16,0)
+ virtual Exiv2::XmpData &xmpData ()
+ {
+ if (!valid_) return emptyXmpData_;
+ return image_->xmpData();
+ }
+#endif
+
+ virtual void add_jpeg_color_profile(unsigned char *cp_data, guint cp_length)
+ {
+ if (cp_data_) g_free(cp_data_);
+ cp_data_ = cp_data;
+ cp_length_ = cp_length;
+ }
+
+ virtual guchar *get_jpeg_color_profile(guint *data_len)
+ {
+ if (cp_data_)
+ {
+ if (data_len) *data_len = cp_length_;
+ return (unsigned char *) g_memdup(cp_data_, cp_length_);
+ }
+ return NULL;
+ }
+
+ virtual std::string image_comment() const
+ {
+ return image_.get() ? image_->comment() : "";
+ }
+
+ virtual void set_image_comment(const std::string& comment)
+ {
+ if (image_.get())
+ image_->setComment(comment);
+ }
};
+extern "C" {
+static void _ExifDataProcessed_update_xmp(gpointer key, gpointer value, gpointer data);
+}
-ExifData *exif_read(gchar *path, gint parse_color_profile)
+// This allows read-write access to the metadata
+struct _ExifDataProcessed : public _ExifData
{
- printf("exif %s\n", path);
+protected:
+ _ExifDataOriginal *imageData_;
+ _ExifDataOriginal *sidecarData_;
+
+ Exiv2::ExifData exifData_;
+ Exiv2::IptcData iptcData_;
+#if EXIV2_TEST_VERSION(0,16,0)
+ Exiv2::XmpData xmpData_;
+#endif
+
+public:
+ _ExifDataProcessed(gchar *path, gchar *sidecar_path, GHashTable *modified_xmp)
+ {
+ imageData_ = new _ExifDataOriginal(path);
+ sidecarData_ = NULL;
+#if EXIV2_TEST_VERSION(0,16,0)
+ if (sidecar_path)
+ {
+ sidecarData_ = new _ExifDataOriginal(sidecar_path);
+ xmpData_ = sidecarData_->xmpData();
+ }
+ else
+ {
+ xmpData_ = imageData_->xmpData();
+ }
+
+#endif
+ exifData_ = imageData_->exifData();
+ iptcData_ = imageData_->iptcData();
+#if EXIV2_TEST_VERSION(0,17,0)
+ try
+ {
+ syncExifWithXmp(exifData_, xmpData_);
+ }
+ catch (...)
+ {
+ DEBUG_1("Exiv2: Catching bug\n");
+ }
+#endif
+ if (modified_xmp)
+ {
+ g_hash_table_foreach(modified_xmp, _ExifDataProcessed_update_xmp, this);
+ }
+ }
+
+ virtual ~_ExifDataProcessed()
+ {
+ if (imageData_) delete imageData_;
+ if (sidecarData_) delete sidecarData_;
+ }
+
+ virtual ExifData *original()
+ {
+ return imageData_;
+ }
+
+ virtual void writeMetadata(gchar *path = NULL)
+ {
+ if (!path)
+ {
+#if EXIV2_TEST_VERSION(0,17,0)
+ if (options->metadata.save_legacy_IPTC)
+ copyXmpToIptc(xmpData_, iptcData_);
+ else
+ iptcData_.clear();
+
+ copyXmpToExif(xmpData_, exifData_);
+#endif
+ Exiv2::Image *image = imageData_->image();
+
+ if (!image) Exiv2::Error(21);
+ image->setExifData(exifData_);
+ image->setIptcData(iptcData_);
+#if EXIV2_TEST_VERSION(0,16,0)
+ image->setXmpData(xmpData_);
+#endif
+ image->writeMetadata();
+ }
+ else
+ {
+#if EXIV2_TEST_VERSION(0,17,0)
+ gchar *pathl = path_from_utf8(path);;
+
+ Exiv2::Image::AutoPtr sidecar = Exiv2::ImageFactory::create(Exiv2::ImageType::xmp, pathl);
+
+ g_free(pathl);
+
+ sidecar->setXmpData(xmpData_);
+ sidecar->writeMetadata();
+#else
+ throw Exiv2::Error(3, "xmp");
+#endif
+ }
+ }
+
+ virtual Exiv2::Image *image()
+ {
+ return imageData_->image();
+ }
+
+ virtual Exiv2::ExifData &exifData ()
+ {
+ return exifData_;
+ }
+
+ virtual Exiv2::IptcData &iptcData ()
+ {
+ return iptcData_;
+ }
+
+#if EXIV2_TEST_VERSION(0,16,0)
+ virtual Exiv2::XmpData &xmpData ()
+ {
+ return xmpData_;
+ }
+#endif
+
+ virtual void add_jpeg_color_profile(unsigned char *cp_data, guint cp_length)
+ {
+ imageData_->add_jpeg_color_profile(cp_data, cp_length);
+ }
+
+ virtual guchar *get_jpeg_color_profile(guint *data_len)
+ {
+ return imageData_->get_jpeg_color_profile(data_len);
+ }
+
+ virtual std::string image_comment() const
+ {
+ return imageData_->image_comment();
+ }
+
+ virtual void set_image_comment(const std::string& comment)
+ {
+ imageData_->set_image_comment(comment);
+ }
+};
+
+
+
+
+extern "C" {
+
+
+void exif_init(void)
+{
+#ifdef EXV_ENABLE_NLS
+ bind_textdomain_codeset (EXV_PACKAGE, "UTF-8");
+#endif
+}
+
+
+
+static void _ExifDataProcessed_update_xmp(gpointer key, gpointer value, gpointer data)
+{
+ exif_update_metadata((ExifData *)data, (gchar *)key, (GList *)value);
+}
+
+ExifData *exif_read(gchar *path, gchar *sidecar_path, GHashTable *modified_xmp)
+{
+ DEBUG_1("exif read %s, sidecar: %s", path, sidecar_path ? sidecar_path : "-");
try {
- ExifData *exif = new ExifData;
-
- Exiv2::Image::AutoPtr image = Exiv2::ImageFactory::open(path);
- g_assert (image.get() != 0);
- image->readMetadata();
- exif->exifData = image->exifData();
- return exif;
+ return new _ExifDataProcessed(path, sidecar_path, modified_xmp);
}
catch (Exiv2::AnyError& e) {
- std::cout << "Caught Exiv2 exception '" << e << "'\n";
- return 0;
+ debug_exception(e);
+ return NULL;
}
-
+
}
-void exif_free(ExifData *exif)
+gboolean exif_write(ExifData *exif)
{
-
- delete exif;
+ try {
+ exif->writeMetadata();
+ return TRUE;
+ }
+ catch (Exiv2::AnyError& e) {
+ debug_exception(e);
+ return FALSE;
+ }
}
-
-gchar *exif_get_data_as_text(ExifData *exif, const gchar *key)
+gboolean exif_write_sidecar(ExifData *exif, gchar *path)
{
- gint key_valid;
- gchar *text = exif_get_formatted_by_key(exif, key, &key_valid);
- if (key_valid) return text;
+ try {
+ exif->writeMetadata(path);
+ return TRUE;
+ }
+ catch (Exiv2::AnyError& e) {
+ debug_exception(e);
+ return FALSE;
+ }
- return g_strdup(exif->exifData[key].toString().c_str());
}
-gint exif_get_integer(ExifData *exif, const gchar *key, gint *value)
+
+void exif_free(ExifData *exif)
{
- Exiv2::ExifKey ekey(key);
- Exiv2::ExifData::iterator pos = exif->exifData.findKey(ekey);
- if (pos == exif->exifData.end()) return 0;
- *value = pos->getValue()->toLong();
-
- return 1;
+ if (!exif) return;
+ g_assert(dynamic_cast<_ExifDataProcessed *>(exif)); // this should not be called on ExifDataOriginal
+ delete exif;
}
-ExifRational *exif_get_rational(ExifData *exif, const gchar *key, gint *sign)
+ExifData *exif_get_original(ExifData *exif)
{
-/* Exiv2::Rational v = exif->exifData[key];
- ExifRational *ret =
- return exif->exifData[key];
-*/
+ return exif->original();
}
+
ExifItem *exif_get_item(ExifData *exif, const gchar *key)
{
- Exiv2::Exifdatum *item = &exif->exifData[key];
- return (ExifItem *)item;
+ try {
+ Exiv2::Metadatum *item = NULL;
+ try {
+ Exiv2::ExifKey ekey(key);
+ Exiv2::ExifData::iterator pos = exif->exifData().findKey(ekey);
+ if (pos == exif->exifData().end()) return NULL;
+ item = &*pos;
+ }
+ catch (Exiv2::AnyError& e) {
+ try {
+ Exiv2::IptcKey ekey(key);
+ Exiv2::IptcData::iterator pos = exif->iptcData().findKey(ekey);
+ if (pos == exif->iptcData().end()) return NULL;
+ item = &*pos;
+ }
+ catch (Exiv2::AnyError& e) {
+#if EXIV2_TEST_VERSION(0,16,0)
+ Exiv2::XmpKey ekey(key);
+ Exiv2::XmpData::iterator pos = exif->xmpData().findKey(ekey);
+ if (pos == exif->xmpData().end()) return NULL;
+ item = &*pos;
+#endif
+ }
+ }
+ return (ExifItem *)item;
+ }
+ catch (Exiv2::AnyError& e) {
+ debug_exception(e);
+ return NULL;
+ }
}
+ExifItem *exif_add_item(ExifData *exif, const gchar *key)
+{
+ try {
+ Exiv2::Metadatum *item = NULL;
+ try {
+ Exiv2::ExifKey ekey(key);
+ exif->exifData().add(ekey, NULL);
+ Exiv2::ExifData::iterator pos = exif->exifData().end(); // a hack, there should be a better way to get the currently added item
+ pos--;
+ item = &*pos;
+ }
+ catch (Exiv2::AnyError& e) {
+ try {
+ Exiv2::IptcKey ekey(key);
+ exif->iptcData().add(ekey, NULL);
+ Exiv2::IptcData::iterator pos = exif->iptcData().end();
+ pos--;
+ item = &*pos;
+ }
+ catch (Exiv2::AnyError& e) {
+#if EXIV2_TEST_VERSION(0,16,0)
+ Exiv2::XmpKey ekey(key);
+ exif->xmpData().add(ekey, NULL);
+ Exiv2::XmpData::iterator pos = exif->xmpData().end();
+ pos--;
+ item = &*pos;
+#endif
+ }
+ }
+ return (ExifItem *)item;
+ }
+ catch (Exiv2::AnyError& e) {
+ debug_exception(e);
+ return NULL;
+ }
+}
+
+
ExifItem *exif_get_first_item(ExifData *exif)
{
- exif->iter = exif->exifData.begin();
- if (exif->iter == exif->exifData.end()) return NULL;
- const Exiv2::Exifdatum *item = &*exif->iter;
- return (ExifItem *)item;
+ try {
+ exif->exifIter = exif->exifData().begin();
+ exif->iptcIter = exif->iptcData().begin();
+#if EXIV2_TEST_VERSION(0,16,0)
+ exif->xmpIter = exif->xmpData().begin();
+#endif
+ if (exif->exifIter != exif->exifData().end())
+ {
+ const Exiv2::Metadatum *item = &*exif->exifIter;
+ exif->exifIter++;
+ return (ExifItem *)item;
+ }
+ if (exif->iptcIter != exif->iptcData().end())
+ {
+ const Exiv2::Metadatum *item = &*exif->iptcIter;
+ exif->iptcIter++;
+ return (ExifItem *)item;
+ }
+#if EXIV2_TEST_VERSION(0,16,0)
+ if (exif->xmpIter != exif->xmpData().end())
+ {
+ const Exiv2::Metadatum *item = &*exif->xmpIter;
+ exif->xmpIter++;
+ return (ExifItem *)item;
+ }
+#endif
+ return NULL;
+
+ }
+ catch (Exiv2::AnyError& e) {
+ debug_exception(e);
+ return NULL;
+ }
}
ExifItem *exif_get_next_item(ExifData *exif)
{
- exif->iter++;
- if (exif->iter == exif->exifData.end()) return NULL;
- const Exiv2::Exifdatum *item = &*exif->iter;
- return (ExifItem *)item;
+ try {
+ if (exif->exifIter != exif->exifData().end())
+ {
+ const Exiv2::Metadatum *item = &*exif->exifIter;
+ exif->exifIter++;
+ return (ExifItem *)item;
+ }
+ if (exif->iptcIter != exif->iptcData().end())
+ {
+ const Exiv2::Metadatum *item = &*exif->iptcIter;
+ exif->iptcIter++;
+ return (ExifItem *)item;
+ }
+#if EXIV2_TEST_VERSION(0,16,0)
+ if (exif->xmpIter != exif->xmpData().end())
+ {
+ const Exiv2::Metadatum *item = &*exif->xmpIter;
+ exif->xmpIter++;
+ return (ExifItem *)item;
+ }
+#endif
+ return NULL;
+ }
+ catch (Exiv2::AnyError& e) {
+ debug_exception(e);
+ return NULL;
+ }
}
-const char *exif_item_get_tag_name(ExifItem *item)
+char *exif_item_get_tag_name(ExifItem *item)
{
- return ((Exiv2::Exifdatum *)item)->key().c_str();
+ try {
+ if (!item) return NULL;
+ return g_strdup(((Exiv2::Metadatum *)item)->key().c_str());
+ }
+ catch (Exiv2::AnyError& e) {
+ debug_exception(e);
+ return NULL;
+ }
}
guint exif_item_get_tag_id(ExifItem *item)
{
- return ((Exiv2::Exifdatum *)item)->tag();
+ try {
+ if (!item) return 0;
+ return ((Exiv2::Metadatum *)item)->tag();
+ }
+ catch (Exiv2::AnyError& e) {
+ debug_exception(e);
+ return 0;
+ }
}
guint exif_item_get_elements(ExifItem *item)
{
- return ((Exiv2::Exifdatum *)item)->count();
+ try {
+ if (!item) return 0;
+ return ((Exiv2::Metadatum *)item)->count();
+ }
+ catch (Exiv2::AnyError& e) {
+ debug_exception(e);
+ return 0;
+ }
}
char *exif_item_get_data(ExifItem *item, guint *data_len)
{
+ try {
+ if (!item) return 0;
+ Exiv2::Metadatum *md = (Exiv2::Metadatum *)item;
+ if (data_len) *data_len = md->size();
+ char *data = (char *)g_malloc(md->size());
+ long res = md->copy((Exiv2::byte *)data, Exiv2::littleEndian /* should not matter */);
+ g_assert(res == md->size());
+ return data;
+ }
+ catch (Exiv2::AnyError& e) {
+ debug_exception(e);
+ return NULL;
+ }
}
char *exif_item_get_description(ExifItem *item)
{
- return g_strdup(((Exiv2::Exifdatum *)item)->tagLabel().c_str());
+ try {
+ if (!item) return NULL;
+ return utf8_validate_or_convert(((Exiv2::Metadatum *)item)->tagLabel().c_str());
+ }
+ catch (std::exception& e) {
+// debug_exception(e);
+ return NULL;
+ }
}
/*
signedShort, signedLong, signedRational, string,
date, time, comment, directory,
xmpText, xmpAlt, xmpBag, xmpSeq,
- langAlt, lastTypeId
-
- EXIF_FORMAT_UNKNOWN = 0,
- EXIF_FORMAT_BYTE_UNSIGNED = 1,
- EXIF_FORMAT_STRING = 2,
- EXIF_FORMAT_SHORT_UNSIGNED = 3,
- EXIF_FORMAT_LONG_UNSIGNED = 4,
- EXIF_FORMAT_RATIONAL_UNSIGNED = 5,
- EXIF_FORMAT_BYTE = 6,
- EXIF_FORMAT_UNDEFINED = 7,
- EXIF_FORMAT_SHORT = 8,
- EXIF_FORMAT_LONG = 9,
- EXIF_FORMAT_RATIONAL = 10,
- EXIF_FORMAT_FLOAT = 11,
- EXIF_FORMAT_DOUBLE = 12
+ langAlt, lastTypeId
*/
+static guint format_id_trans_tbl [] = {
+ EXIF_FORMAT_UNKNOWN,
+ EXIF_FORMAT_BYTE_UNSIGNED,
+ EXIF_FORMAT_STRING,
+ EXIF_FORMAT_SHORT_UNSIGNED,
+ EXIF_FORMAT_LONG_UNSIGNED,
+ EXIF_FORMAT_RATIONAL_UNSIGNED,
+ EXIF_FORMAT_BYTE,
+ EXIF_FORMAT_UNDEFINED,
+ EXIF_FORMAT_SHORT,
+ EXIF_FORMAT_LONG,
+ EXIF_FORMAT_RATIONAL,
+ EXIF_FORMAT_STRING,
+ EXIF_FORMAT_STRING,
+ EXIF_FORMAT_STRING,
+ EXIF_FORMAT_UNDEFINED,
+ EXIF_FORMAT_STRING,
+ EXIF_FORMAT_STRING,
+ EXIF_FORMAT_STRING,
+ EXIF_FORMAT_STRING
+ };
+
+
guint exif_item_get_format_id(ExifItem *item)
{
- return ((Exiv2::Exifdatum *)item)->typeId();
+ try {
+ if (!item) return EXIF_FORMAT_UNKNOWN;
+ guint id = ((Exiv2::Metadatum *)item)->typeId();
+ if (id >= (sizeof(format_id_trans_tbl) / sizeof(format_id_trans_tbl[0])) ) return EXIF_FORMAT_UNKNOWN;
+ return format_id_trans_tbl[id];
+ }
+ catch (Exiv2::AnyError& e) {
+ debug_exception(e);
+ return EXIF_FORMAT_UNKNOWN;
+ }
}
-const char *exif_item_get_format_name(ExifItem *item, gint brief)
+
+const char *exif_item_get_format_name(ExifItem *item, gboolean brief)
{
- return ((Exiv2::Exifdatum *)item)->typeName();
+ try {
+ if (!item) return NULL;
+ return ((Exiv2::Metadatum *)item)->typeName();
+ }
+ catch (Exiv2::AnyError& e) {
+ debug_exception(e);
+ return NULL;
+ }
}
gchar *exif_item_get_data_as_text(ExifItem *item)
{
- return g_strdup(((Exiv2::Exifdatum *)item)->toString().c_str());
+ try {
+ if (!item) return NULL;
+ Exiv2::Metadatum *metadatum = (Exiv2::Metadatum *)item;
+#if EXIV2_TEST_VERSION(0,17,0)
+ return utf8_validate_or_convert(metadatum->print().c_str());
+#else
+ std::stringstream str;
+ Exiv2::Exifdatum *exifdatum;
+ Exiv2::Iptcdatum *iptcdatum;
+#if EXIV2_TEST_VERSION(0,16,0)
+ Exiv2::Xmpdatum *xmpdatum;
+#endif
+ if ((exifdatum = dynamic_cast<Exiv2::Exifdatum *>(metadatum)))
+ str << *exifdatum;
+ else if ((iptcdatum = dynamic_cast<Exiv2::Iptcdatum *>(metadatum)))
+ str << *iptcdatum;
+#if EXIV2_TEST_VERSION(0,16,0)
+ else if ((xmpdatum = dynamic_cast<Exiv2::Xmpdatum *>(metadatum)))
+ str << *xmpdatum;
+#endif
+
+ return utf8_validate_or_convert(str.str().c_str());
+#endif
+ }
+ catch (Exiv2::AnyError& e) {
+ return NULL;
+ }
+}
+
+gchar *exif_item_get_string(ExifItem *item, int idx)
+{
+ try {
+ if (!item) return NULL;
+ Exiv2::Metadatum *em = (Exiv2::Metadatum *)item;
+#if EXIV2_TEST_VERSION(0,16,0)
+ std::string str = em->toString(idx);
+#else
+ std::string str = em->toString(); // FIXME
+#endif
+ if (idx == 0 && str == "") str = em->toString();
+ if (str.length() > 5 && str.substr(0, 5) == "lang=")
+ {
+ std::string::size_type pos = str.find_first_of(' ');
+ if (pos != std::string::npos) str = str.substr(pos+1);
+ }
+
+ return utf8_validate_or_convert(str.c_str());
+ }
+ catch (Exiv2::AnyError& e) {
+ return NULL;
+ }
}
gint exif_item_get_integer(ExifItem *item, gint *value)
{
+ try {
+ if (!item || exif_item_get_elements(item) == 0) return 0;
+ *value = ((Exiv2::Metadatum *)item)->toLong();
+ return 1;
+ }
+ catch (Exiv2::AnyError& e) {
+ debug_exception(e);
+ return 0;
+ }
+}
+
+ExifRational *exif_item_get_rational(ExifItem *item, gint *sign, guint n)
+{
+ try {
+ if (!item) return NULL;
+ if (n >= exif_item_get_elements(item)) return NULL;
+ Exiv2::Rational v = ((Exiv2::Metadatum *)item)->toRational(n);
+ static ExifRational ret;
+ ret.num = v.first;
+ ret.den = v.second;
+ if (sign) *sign = (((Exiv2::Metadatum *)item)->typeId() == Exiv2::signedRational);
+ return &ret;
+ }
+ catch (Exiv2::AnyError& e) {
+ debug_exception(e);
+ return NULL;
+ }
+}
+
+gchar *exif_get_tag_description_by_key(const gchar *key)
+{
+ try {
+ Exiv2::ExifKey ekey(key);
+ return utf8_validate_or_convert(ekey.tagLabel().c_str());
+ }
+ catch (Exiv2::AnyError& e) {
+ try {
+ Exiv2::IptcKey ikey(key);
+ return utf8_validate_or_convert(ikey.tagLabel().c_str());
+ }
+ catch (Exiv2::AnyError& e) {
+ try {
+#if EXIV2_TEST_VERSION(0,16,0)
+ Exiv2::XmpKey xkey(key);
+ return utf8_validate_or_convert(xkey.tagLabel().c_str());
+#endif
+ }
+ catch (Exiv2::AnyError& e) {
+ debug_exception(e);
+ return NULL;
+ }
+ }
+ }
+ return NULL;
}
-ExifRational *exif_item_get_rational(ExifItem *item, gint *sign)
+static const AltKey *find_alt_key(const gchar *xmp_key)
{
+ gint i = 0;
+
+ while (alt_keys[i].xmp_key)
+ {
+ if (strcmp(xmp_key, alt_keys[i].xmp_key) == 0) return &alt_keys[i];
+ i++;
+ }
+ return NULL;
}
-const gchar *exif_get_tag_description_by_key(const gchar *key)
+static gint exif_update_metadata_simple(ExifData *exif, const gchar *key, const GList *values)
{
- Exiv2::ExifKey ekey(key);
- return Exiv2::ExifTags::tagLabel(ekey.tag(), ekey.ifdId ());
+ try {
+ const GList *work = values;
+
+ try {
+ Exiv2::ExifKey ekey(key);
+
+ Exiv2::ExifData::iterator pos = exif->exifData().findKey(ekey);
+ while (pos != exif->exifData().end())
+ {
+ exif->exifData().erase(pos);
+ pos = exif->exifData().findKey(ekey);
+ }
+
+ while (work)
+ {
+ exif->exifData()[key] = (gchar *)work->data;
+ work = work->next;
+ }
+ }
+ catch (Exiv2::AnyError& e) {
+#if EXIV2_TEST_VERSION(0,16,0)
+ try
+#endif
+ {
+ Exiv2::IptcKey ekey(key);
+ Exiv2::IptcData::iterator pos = exif->iptcData().findKey(ekey);
+ while (pos != exif->iptcData().end())
+ {
+ exif->iptcData().erase(pos);
+ pos = exif->iptcData().findKey(ekey);
+ }
+
+ while (work)
+ {
+ exif->iptcData()[key] = (gchar *)work->data;
+ work = work->next;
+ }
+ }
+#if EXIV2_TEST_VERSION(0,16,0)
+ catch (Exiv2::AnyError& e) {
+ Exiv2::XmpKey ekey(key);
+ Exiv2::XmpData::iterator pos = exif->xmpData().findKey(ekey);
+ while (pos != exif->xmpData().end())
+ {
+ exif->xmpData().erase(pos);
+ pos = exif->xmpData().findKey(ekey);
+ }
+
+ while (work)
+ {
+ exif->xmpData()[key] = (gchar *)work->data;
+ work = work->next;
+ }
+ }
+#endif
+ }
+ return 1;
+ }
+ catch (Exiv2::AnyError& e) {
+ debug_exception(e);
+ return 0;
+ }
}
-gint format_raw_img_exif_offsets_fd(int fd, const gchar *path,
- unsigned char *header_data, const guint header_len,
- guint *image_offset, guint *exif_offset)
+gint exif_update_metadata(ExifData *exif, const gchar *key, const GList *values)
{
- return 0;
+ gint ret = exif_update_metadata_simple(exif, key, values);
+
+ if (
+#if !EXIV2_TEST_VERSION(0,17,0)
+ TRUE || /* no conversion support */
+#endif
+ !values || /* deleting item */
+ !ret /* writing to the explicitely given xmp tag failed */
+ )
+ {
+ /* deleted xmp metadatum can't be converted, we have to delete also the corresponding legacy tag */
+ /* if we can't write xmp, update at least the legacy tag */
+ const AltKey *alt_key = find_alt_key(key);
+ if (alt_key && alt_key->iptc_key)
+ ret = exif_update_metadata_simple(exif, alt_key->iptc_key, values);
+
+ if (alt_key && alt_key->exif_key)
+ ret = exif_update_metadata_simple(exif, alt_key->exif_key, values);
+ }
+ return ret;
+}
+
+
+static GList *exif_add_value_to_glist(GList *list, Exiv2::Metadatum &item, MetadataFormat format, const Exiv2::ExifData *metadata)
+{
+#if EXIV2_TEST_VERSION(0,16,0)
+ Exiv2::TypeId id = item.typeId();
+ if (format == METADATA_FORMATTED ||
+ id == Exiv2::asciiString ||
+ id == Exiv2::undefined ||
+ id == Exiv2::string ||
+ id == Exiv2::date ||
+ id == Exiv2::time ||
+ id == Exiv2::xmpText ||
+ id == Exiv2::langAlt ||
+ id == Exiv2::comment
+ )
+ {
+#endif
+ /* read as a single entry */
+ std::string str;
+
+ if (format == METADATA_FORMATTED)
+ {
+#if EXIV2_TEST_VERSION(0,17,0)
+ str = item.print(
+#if EXIV2_TEST_VERSION(0,18,0)
+ metadata
+#endif
+ );
+#else
+ std::stringstream stream;
+ Exiv2::Exifdatum *exifdatum;
+ Exiv2::Iptcdatum *iptcdatum;
+#if EXIV2_TEST_VERSION(0,16,0)
+ Exiv2::Xmpdatum *xmpdatum;
+#endif
+ if ((exifdatum = dynamic_cast<Exiv2::Exifdatum *>(&item)))
+ stream << *exifdatum;
+ else if ((iptcdatum = dynamic_cast<Exiv2::Iptcdatum *>(&item)))
+ stream << *iptcdatum;
+#if EXIV2_TEST_VERSION(0,16,0)
+ else if ((xmpdatum = dynamic_cast<Exiv2::Xmpdatum *>(&item)))
+ stream << *xmpdatum;
+#endif
+ str = stream.str();
+#endif
+ if (str.length() > 1024)
+ {
+ /* truncate very long strings, they cause problems in gui */
+ str.erase(1024);
+ str.append("...");
+ }
+ }
+ else
+ {
+ str = item.toString();
+ }
+ if (str.length() > 5 && str.substr(0, 5) == "lang=")
+ {
+ std::string::size_type pos = str.find_first_of(' ');
+ if (pos != std::string::npos) str = str.substr(pos+1);
+ }
+ list = g_list_append(list, utf8_validate_or_convert(str.c_str()));
+#if EXIV2_TEST_VERSION(0,16,0)
+ }
+ else
+ {
+ /* read as a list */
+ gint i;
+ for (i = 0; i < item.count(); i++)
+ list = g_list_append(list, utf8_validate_or_convert(item.toString(i).c_str()));
+ }
+#endif
+ return list;
+}
+
+static GList *exif_get_metadata_simple(ExifData *exif, const gchar *key, MetadataFormat format)
+{
+ GList *list = NULL;
+ try {
+ try {
+ Exiv2::ExifKey ekey(key);
+ Exiv2::ExifData::iterator pos = exif->exifData().findKey(ekey);
+ if (pos != exif->exifData().end())
+ list = exif_add_value_to_glist(list, *pos, format, &exif->exifData());
+
+ }
+ catch (Exiv2::AnyError& e) {
+ try {
+ Exiv2::IptcKey ekey(key);
+ Exiv2::IptcData::iterator pos = exif->iptcData().begin();
+ while (pos != exif->iptcData().end())
+ {
+ if (pos->key() == key)
+ list = exif_add_value_to_glist(list, *pos, format, NULL);
+ ++pos;
+ }
+
+ }
+ catch (Exiv2::AnyError& e) {
+#if EXIV2_TEST_VERSION(0,16,0)
+ Exiv2::XmpKey ekey(key);
+ Exiv2::XmpData::iterator pos = exif->xmpData().findKey(ekey);
+ if (pos != exif->xmpData().end())
+ list = exif_add_value_to_glist(list, *pos, format, NULL);
+#endif
+ }
+ }
+ }
+ catch (Exiv2::AnyError& e) {
+ debug_exception(e);
+ }
+ return list;
+}
+
+GList *exif_get_metadata(ExifData *exif, const gchar *key, MetadataFormat format)
+{
+ GList *list = NULL;
+
+ if (!key) return NULL;
+
+ if (format == METADATA_FORMATTED)
+ {
+ gchar *text;
+ gint key_valid;
+ text = exif_get_formatted_by_key(exif, key, &key_valid);
+ if (key_valid) return g_list_append(NULL, text);
+ }
+
+ list = exif_get_metadata_simple(exif, key, format);
+
+ /* the following code can be ifdefed out as soon as Exiv2 supports it */
+ if (!list)
+ {
+ const AltKey *alt_key = find_alt_key(key);
+ if (alt_key && alt_key->iptc_key)
+ list = exif_get_metadata_simple(exif, alt_key->iptc_key, format);
+
+#if !EXIV2_TEST_VERSION(0,17,0)
+ /* with older Exiv2 versions exif is not synced */
+ if (!list && alt_key && alt_key->exif_key)
+ list = exif_get_metadata_simple(exif, alt_key->exif_key, format);
+#endif
+ }
+ return list;
+}
+
+
+void exif_add_jpeg_color_profile(ExifData *exif, unsigned char *cp_data, guint cp_length)
+{
+ exif->add_jpeg_color_profile(cp_data, cp_length);
+}
+
+guchar *exif_get_color_profile(ExifData *exif, guint *data_len)
+{
+ guchar *ret = exif->get_jpeg_color_profile(data_len);
+ if (ret) return ret;
+
+ ExifItem *prof_item = exif_get_item(exif, "Exif.Image.InterColorProfile");
+ if (prof_item && exif_item_get_format_id(prof_item) == EXIF_FORMAT_UNDEFINED)
+ ret = (guchar *)exif_item_get_data(prof_item, data_len);
+ return ret;
}
+gchar* exif_get_image_comment(FileData* fd)
+{
+ if (!fd || !fd->exif)
+ return g_strdup("");
+
+ return g_strdup(fd->exif->image_comment().c_str());
+}
+
+void exif_set_image_comment(FileData* fd, const gchar* comment)
+{
+ if (!fd || !fd->exif)
+ return;
+
+ fd->exif->set_image_comment(comment ? comment : "");
}
-#endif
+
+#if EXIV2_TEST_VERSION(0,17,90)
+
+guchar *exif_get_preview(ExifData *exif, guint *data_len, gint requested_width, gint requested_height)
+{
+ if (!exif) return NULL;
+
+ if (!exif->image()) return NULL;
+
+ std::string const path = exif->image()->io().path();
+ /* given image pathname, first do simple (and fast) file extension test */
+ gboolean is_raw = filter_file_class(path.c_str(), FORMAT_CLASS_RAWIMAGE);
+
+ if (!is_raw && requested_width == 0) return NULL;
+
+ try {
+
+ Exiv2::PreviewManager pm(*exif->image());
+
+ Exiv2::PreviewPropertiesList list = pm.getPreviewProperties();
+
+ if (!list.empty())
+ {
+ Exiv2::PreviewPropertiesList::iterator pos;
+ Exiv2::PreviewPropertiesList::iterator last = --list.end();
+
+ if (requested_width == 0)
+ {
+ pos = last; // the largest
+ }
+ else
+ {
+ pos = list.begin();
+ while (pos != last)
+ {
+ if (pos->width_ >= (uint32_t)requested_width &&
+ pos->height_ >= (uint32_t)requested_height) break;
+ ++pos;
+ }
+
+ // we are not interested in smaller thumbnails in normal image formats - we can use full image instead
+ if (!is_raw)
+ {
+ if (pos->width_ < (uint32_t)requested_width || pos->height_ < (uint32_t)requested_height) return NULL;
+ }
+ }
+
+ Exiv2::PreviewImage image = pm.getPreviewImage(*pos);
+
+ Exiv2::DataBuf buf = image.copy();
+ std::pair<Exiv2::byte*, long> p = buf.release();
+
+ *data_len = p.second;
+ return p.first;
+ }
+ return NULL;
+ }
+ catch (Exiv2::AnyError& e) {
+ debug_exception(e);
+ return NULL;
+ }
+}
+
+void exif_free_preview(guchar *buf)
+{
+ delete[] (Exiv2::byte*)buf;
+}
+#endif
+
+}
+#if !EXIV2_TEST_VERSION(0,17,90)
+
+/* This is a dirty hack to support raw file preview, bassed on
+tiffparse.cpp from Exiv2 examples */
+
+class RawFile {
+ public:
+
+ RawFile(Exiv2::BasicIo &io);
+ ~RawFile();
+
+ const Exiv2::Value *find(uint16_t tag, uint16_t group);
+
+ unsigned long preview_offset();
+
+ private:
+ int type;
+ Exiv2::TiffComponent::AutoPtr rootDir;
+ Exiv2::BasicIo &io_;
+ const Exiv2::byte *map_data;
+ size_t map_len;
+ unsigned long offset;
+};
+
+typedef struct _UnmapData UnmapData;
+struct _UnmapData
+{
+ guchar *ptr;
+ guchar *map_data;
+ size_t map_len;
+};
+
+static GList *exif_unmap_list = 0;
+
+extern "C" guchar *exif_get_preview(ExifData *exif, guint *data_len, gint requested_width, gint requested_height)
+{
+ unsigned long offset;
+
+ if (!exif) return NULL;
+ if (!exif->image()) return NULL;
+
+ std::string const path = exif->image()->io().path();
+
+ /* given image pathname, first do simple (and fast) file extension test */
+ if (!filter_file_class(path.c_str(), FORMAT_CLASS_RAWIMAGE)) return NULL;
+
+ try {
+ struct stat st;
+ guchar *map_data;
+ size_t map_len;
+ UnmapData *ud;
+ int fd;
+
+ RawFile rf(exif->image()->io());
+ offset = rf.preview_offset();
+ DEBUG_1("%s: offset %lu", path.c_str(), offset);
+
+ fd = open(path.c_str(), O_RDONLY);
+ if (fd == -1)
+ {
+ return NULL;
+ }
+
+ if (fstat(fd, &st) == -1)
+ {
+ close(fd);
+ return NULL;
+ }
+ map_len = st.st_size;
+ map_data = (guchar *) mmap(0, map_len, PROT_READ, MAP_PRIVATE, fd, 0);
+ close(fd);
+ if (map_data == MAP_FAILED)
+ {
+ return NULL;
+ }
+ *data_len = map_len - offset;
+ ud = g_new(UnmapData, 1);
+ ud->ptr = map_data + offset;
+ ud->map_data = map_data;
+ ud->map_len = map_len;
+
+ exif_unmap_list = g_list_prepend(exif_unmap_list, ud);
+ return ud->ptr;
+
+ }
+ catch (Exiv2::AnyError& e) {
+ debug_exception(e);
+ }
+ return NULL;
+
+}
+
+void exif_free_preview(guchar *buf)
+{
+ GList *work = exif_unmap_list;
+
+ while (work)
+ {
+ UnmapData *ud = (UnmapData *)work->data;
+ if (ud->ptr == buf)
+ {
+ munmap(ud->map_data, ud->map_len);
+ exif_unmap_list = g_list_remove_link(exif_unmap_list, work);
+ g_free(ud);
+ return;
+ }
+ work = work->next;
+ }
+ g_assert_not_reached();
+}
+
+using namespace Exiv2;
+
+RawFile::RawFile(BasicIo &io) : io_(io), map_data(NULL), map_len(0), offset(0)
+{
+/*
+ struct stat st;
+ if (fstat(fd, &st) == -1)
+ {
+ throw Error(14);
+ }
+ map_len = st.st_size;
+ map_data = (Exiv2::byte *) mmap(0, map_len, PROT_READ, MAP_PRIVATE, fd, 0);
+ if (map_data == MAP_FAILED)
+ {
+ throw Error(14);
+ }
+*/
+ if (io.open() != 0) {
+ throw Error(9, io.path(), strError());
+ }
+
+ map_data = io.mmap();
+ map_len = io.size();
+
+
+ type = Exiv2::ImageFactory::getType(map_data, map_len);
+
+#if EXIV2_TEST_VERSION(0,16,0)
+ TiffHeaderBase *tiffHeader = NULL;
+#else
+ TiffHeade2 *tiffHeader = NULL;
+#endif
+ Cr2Header *cr2Header = NULL;
+
+ switch (type) {
+ case Exiv2::ImageType::tiff:
+ tiffHeader = new TiffHeade2();
+ break;
+ case Exiv2::ImageType::cr2:
+ cr2Header = new Cr2Header();
+ break;
+#if EXIV2_TEST_VERSION(0,16,0)
+ case Exiv2::ImageType::orf:
+ tiffHeader = new OrfHeader();
+ break;
+#endif
+#if EXIV2_TEST_VERSION(0,13,0)
+ case Exiv2::ImageType::raf:
+ if (map_len < 84 + 4) throw Error(14);
+ offset = getULong(map_data + 84, bigEndian);
+ return;
+#endif
+ case Exiv2::ImageType::crw:
+ {
+ // Parse the image, starting with a CIFF header component
+ Exiv2::CiffHeader::AutoPtr parseTree(new Exiv2::CiffHeader);
+ parseTree->read(map_data, map_len);
+ CiffComponent *entry = parseTree->findComponent(0x2007, 0);
+ if (entry) offset = entry->pData() - map_data;
+ return;
+ }
+
+ default:
+ throw Error(3, "RAW");
+ }
+
+ // process tiff-like formats
+
+ TiffCompFactoryFct createFct = TiffCreator::create;
+
+ rootDir = createFct(Tag::root, Group::none);
+ if (0 == rootDir.get()) {
+ throw Error(1, "No root element defined in TIFF structure");
+ }
+
+ if (tiffHeader)
+ {
+ if (!tiffHeader->read(map_data, map_len)) throw Error(3, "TIFF");
+#if EXIV2_TEST_VERSION(0,16,0)
+ rootDir->setStart(map_data + tiffHeader->offset());
+#else
+ rootDir->setStart(map_data + tiffHeader->ifdOffset());
+#endif
+ }
+
+ if (cr2Header)
+ {
+ rootDir->setStart(map_data + cr2Header->offset());
+ }
+
+ TiffRwState::AutoPtr state(new TiffRwState(tiffHeader ? tiffHeader->byteOrder() : littleEndian, 0, createFct));
+
+ TiffReader reader(map_data,
+ map_len,
+ rootDir.get(),
+ state);
+
+ rootDir->accept(reader);
+
+ if (tiffHeader)
+ delete tiffHeader;
+ if (cr2Header)
+ delete cr2Header;
+}
+
+RawFile::~RawFile(void)
+{
+ io_.munmap();
+ io_.close();
+}
+
+const Value * RawFile::find(uint16_t tag, uint16_t group)
+{
+ TiffFinder finder(tag, group);
+ rootDir->accept(finder);
+ TiffEntryBase* te = dynamic_cast<TiffEntryBase*>(finder.result());
+ if (te)
+ {
+ DEBUG_1("(tag: %04x %04x) ", tag, group);
+ return te->pValue();
+ }
+ else
+ return NULL;
+}
+
+unsigned long RawFile::preview_offset(void)
+{
+ const Value *val;
+ if (offset) return offset;
+
+ if (type == Exiv2::ImageType::cr2)
+ {
+ val = find(0x111, Group::ifd0);
+ if (val) return val->toLong();
+
+ return 0;
+ }
+
+ val = find(0x201, Group::sub0_0);
+ if (val) return val->toLong();
+
+ val = find(0x201, Group::ifd0);
+ if (val) return val->toLong();
+
+ val = find(0x201, Group::ignr); // for PEF files, originally it was probably ifd2
+ if (val) return val->toLong();
+
+ val = find(0x111, Group::sub0_1); // dng
+ if (val) return val->toLong();
+
+ return 0;
+}
+
+
+#endif
+
+
+#endif
/* HAVE_EXIV2 */
+/* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */
projects / geeqie.git / blobdiff