Byte ordering

Byte ordering — functions for decoding integer types of different byte-orders

Synopsis




enum        IptcByteOrder;
typedef     IptcByte;
typedef     IptcShort;
typedef     IptcLong;
typedef     IptcSLong;
IptcShort   iptc_get_short                  (unsigned char *b,
                                             IptcByteOrder order);
IptcLong    iptc_get_long                   (unsigned char *b,
                                             IptcByteOrder order);
IptcSLong   iptc_get_slong                  (unsigned char *b,
                                             IptcByteOrder order);
void        iptc_set_short                  (unsigned char *b,
                                             IptcByteOrder order,
                                             IptcShort value);
void        iptc_set_long                   (unsigned char *b,
                                             IptcByteOrder order,
                                             IptcLong value);
void        iptc_set_slong                  (unsigned char *b,
                                             IptcByteOrder order,
                                             IptcSLong value);
#define     MIN                             (a, b)
#define     IPTC_TAG_SUBSEC_TIME

Description

Details

enum IptcByteOrder

typedef enum {
	IPTC_BYTE_ORDER_MOTOROLA,
	IPTC_BYTE_ORDER_INTEL
} IptcByteOrder;


IptcByte

typedef char		IptcByte;          /* 1 byte  */


IptcShort

typedef uint16_t	IptcShort;         /* 2 bytes */


IptcLong

typedef uint32_t	IptcLong;          /* 4 bytes */


IptcSLong

typedef int32_t		IptcSLong;         /* 4 bytes */


iptc_get_short ()

IptcShort   iptc_get_short                  (unsigned char *b,
                                             IptcByteOrder order);

b :
order :
Returns :

iptc_get_long ()

IptcLong    iptc_get_long                   (unsigned char *b,
                                             IptcByteOrder order);

b :
order :
Returns :

iptc_get_slong ()

IptcSLong   iptc_get_slong                  (unsigned char *b,
                                             IptcByteOrder order);

b :
order :
Returns :

iptc_set_short ()

void        iptc_set_short                  (unsigned char *b,
                                             IptcByteOrder order,
                                             IptcShort value);

b :
order :
value :

iptc_set_long ()

void        iptc_set_long                   (unsigned char *b,
                                             IptcByteOrder order,
                                             IptcLong value);

b :
order :
value :

iptc_set_slong ()

void        iptc_set_slong                  (unsigned char *b,
                                             IptcByteOrder order,
                                             IptcSLong value);

b :
order :
value :

MIN()

#define MIN(a, b)  (((a) < (b)) ? (a) : (b))

a :
b :

IPTC_TAG_SUBSEC_TIME

#define IPTC_TAG_SUBSEC_TIME IPTC_TAG_SUB_SEC_TIME