/*
* 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.
*/
#include "config.h"
#ifdef HAVE_EXIV2
#include <exiv2/image.hpp>
#include <exiv2/exif.hpp>
#include <iostream>
// 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 "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::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;
};
// 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;
}
};
extern "C" {
static void _ExifDataProcessed_update_xmp(gpointer key, gpointer value, gpointer data);
}
// This allows read-write access to the metadata
struct _ExifDataProcessed : public _ExifData
{
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);
}
};
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 {
return new _ExifDataProcessed(path, sidecar_path, modified_xmp);
}
catch (Exiv2::AnyError& e) {
debug_exception(e);
return NULL;
}
}
gboolean exif_write(ExifData *exif)
{
try {
exif->writeMetadata();
return TRUE;
}
catch (Exiv2::AnyError& e) {
debug_exception(e);
return FALSE;
}
}
gboolean exif_write_sidecar(ExifData *exif, gchar *path)
{
try {
exif->writeMetadata(path);
return TRUE;
}
catch (Exiv2::AnyError& e) {
debug_exception(e);
return FALSE;
}
}
void exif_free(ExifData *exif)
{
if (!exif) return;
g_assert(dynamic_cast<_ExifDataProcessed *>(exif)); // this should not be called on ExifDataOriginal
delete exif;
}
ExifData *exif_get_original(ExifData *exif)
{
return exif->original();
}
ExifItem *exif_get_item(ExifData *exif, const gchar *key)
{
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)
{
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)
{
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;
}
}
char *exif_item_get_tag_name(ExifItem *item)
{
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)
{
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)
{
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)
{
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;
}
}
/*
invalidTypeId, unsignedByte, asciiString, unsignedShort,
unsignedLong, unsignedRational, signedByte, undefined,
signedShort, signedLong, signedRational, string,
date, time, comment, directory,
xmpText, xmpAlt, xmpBag, xmpSeq,
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)
{
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, gboolean brief)
{
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)
{
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;
}
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;
}
static gint exif_update_metadata_simple(ExifData *exif, const gchar *key, const GList *values)
{
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 exif_update_metadata(ExifData *exif, const gchar *key, const GList *values)
{
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;
}
#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;
/* given image pathname, first do simple (and fast) file extension test */
gboolean is_raw = filter_file_class(exif->image()->io().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;
const char* path = exif->image()->io().path().c_str();
/* given image pathname, first do simple (and fast) file extension test */
if (!filter_file_class(path, 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, offset);
fd = open(path, 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: */