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/*! \file exif-entry.h
* \brief Handling EXIF entries
*
* Copyright (c) 2001 Lutz Mueller <lutz@users.sourceforge.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __EXIF_ENTRY_H__
#define __EXIF_ENTRY_H__
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
typedef struct _ExifEntry ExifEntry;
typedef struct _ExifEntryPrivate ExifEntryPrivate;
#include <libexif/exif-content.h>
#include <libexif/exif-format.h>
#include <libexif/exif-mem.h>
/*! */
struct _ExifEntry {
ExifTag tag;
ExifFormat format;
unsigned long components;
unsigned char *data;
unsigned int size;
/* Content containing this entry */
ExifContent *parent;
ExifEntryPrivate *priv;
};
/* Lifecycle */
/*! Reserve memory for and initialize new #ExifEntry* */
ExifEntry *exif_entry_new (void);
ExifEntry *exif_entry_new_mem (ExifMem *);
/*! Increase reference counter for #ExifEntry* */
void exif_entry_ref (ExifEntry *entry);
/*! Decrease reference counter for #ExifEntry* */
void exif_entry_unref (ExifEntry *entry);
/*! Actually free the #ExifEntry*
*
* \deprecated Should not be called directly. Use exif_entry_ref() and
* exif_entry_unref() instead.
*/
void exif_entry_free (ExifEntry *entry);
void exif_entry_initialize (ExifEntry *entry, ExifTag tag);
void exif_entry_fix (ExifEntry *entry);
/* For your convenience */
/*! Return the value of the EXIF entry
*
* CAUTION: The character set of the returned string is not defined.
* It may be UTF-8, latin1, the native encoding of the
* computer, or the native encoding of the camera.
*/
const char *exif_entry_get_value (ExifEntry *entry, char *val,
unsigned int maxlen);
/*! Dump text representation of #ExifEntry to stdout */
void exif_entry_dump (ExifEntry *entry, unsigned int indent);
#define exif_entry_get_ifd(e) ((e)?exif_content_get_ifd((e)->parent):EXIF_IFD_COUNT)
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __EXIF_ENTRY_H__ */
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