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/* exif-utils.h
*
* 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_UTILS_H__
#define __EXIF_UTILS_H__
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#include <libexif/exif-byte-order.h>
#include <libexif/exif-format.h>
#include <libexif/_stdint.h>
/* If these definitions don't work for you, please let us fix the
* macro generating _stdint.h */
typedef unsigned char ExifByte; /* 1 byte */
typedef signed char ExifSByte; /* 1 byte */
typedef char * ExifAscii;
typedef uint16_t ExifShort; /* 2 bytes */
typedef int16_t ExifSShort; /* 2 bytes */
typedef uint32_t ExifLong; /* 4 bytes */
/** EXIF Unsigned Rational */
typedef struct {ExifLong numerator; ExifLong denominator;} ExifRational;
typedef char ExifUndefined; /* 1 byte */
typedef int32_t ExifSLong; /* 4 bytes */
/** EXIF Signed Rational. */
typedef struct {ExifSLong numerator; ExifSLong denominator;} ExifSRational;
ExifShort exif_get_short (const unsigned char *b, ExifByteOrder order);
ExifSShort exif_get_sshort (const unsigned char *b, ExifByteOrder order);
ExifLong exif_get_long (const unsigned char *b, ExifByteOrder order);
ExifSLong exif_get_slong (const unsigned char *b, ExifByteOrder order);
ExifRational exif_get_rational (const unsigned char *b, ExifByteOrder order);
ExifSRational exif_get_srational (const unsigned char *b, ExifByteOrder order);
void exif_set_short (unsigned char *b, ExifByteOrder order,
ExifShort value);
void exif_set_sshort (unsigned char *b, ExifByteOrder order,
ExifSShort value);
void exif_set_long (unsigned char *b, ExifByteOrder order,
ExifLong value);
void exif_set_slong (unsigned char *b, ExifByteOrder order,
ExifSLong value);
void exif_set_rational (unsigned char *b, ExifByteOrder order,
ExifRational value);
void exif_set_srational (unsigned char *b, ExifByteOrder order,
ExifSRational value);
void exif_convert_utf16_to_utf8 (char *out, const unsigned short *in, int maxlen);
/* Please do not use this function outside of the library. */
void exif_array_set_byte_order (ExifFormat, unsigned char *, unsigned int,
ExifByteOrder o_orig, ExifByteOrder o_new);
#undef MIN
#define MIN(a, b) (((a) < (b)) ? (a) : (b))
#undef MAX
#define MAX(a, b) (((a) > (b)) ? (a) : (b))
/* For compatibility with older versions */
#define EXIF_TAG_SUBSEC_TIME EXIF_TAG_SUB_SEC_TIME
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __EXIF_UTILS_H__ */
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