codestream_manager.h File Reference

#include "byte_manager.h"

Go to the source code of this file.

Data Structures
struct	codestream_param
	codestream parameters More...

Typedefs
typedef struct codestream_param	codestream_param_t
	codestream parameters More...

Functions
codestream_param_t	set_codestream (int fd, OPJ_OFF_T offset, OPJ_SIZE_T length)
	set codestream parameters from inputs More...
Byte_t *	fetch_codestreambytes (codestream_param_t *cs, OPJ_OFF_T offset, OPJ_SIZE_T size)
	fetch Codestream bytes of data in file stream More...
Byte_t	fetch_codestream1byte (codestream_param_t *cs, OPJ_OFF_T offset)
	fetch Codestream 1-byte Byte code in file stream More...
Byte2_t	fetch_codestream2bytebigendian (codestream_param_t *cs, OPJ_OFF_T offset)
	fetch Codestream 2-byte big endian Byte codes in file stream More...
Byte4_t	fetch_codestream4bytebigendian (codestream_param_t *cs, OPJ_OFF_T offset)
	fetch Codestream 4-byte big endian Byte codes in file stream More...
void	print_codestream (codestream_param_t cs)
	print codestream parameters More...

Typedef Documentation

codestream_param_t

typedef struct codestream_param codestream_param_t

codestream parameters

Function Documentation

fetch_codestream1byte()

Byte_t fetch_codestream1byte	(	codestream_param_t *	cs,
		OPJ_OFF_T	offset
	)

fetch Codestream 1-byte Byte code in file stream

Parameters

[in]	cs	codestream pointer
[in]	offset	start Byte position in codestream

Returns

fetched code

References codestream_param::fd, fetch_1byte(), and codestream_param::offset.

Referenced by fetch_marker1byte().

fetch_codestream2bytebigendian()

Byte2_t fetch_codestream2bytebigendian	(	codestream_param_t *	cs,
		OPJ_OFF_T	offset
	)

fetch Codestream 2-byte big endian Byte codes in file stream

Parameters

[in]	cs	codestream pointer
[in]	offset	start Byte position in codestream

Returns

fetched code

References codestream_param::fd, fetch_2bytebigendian(), and codestream_param::offset.

Referenced by fetch_marker2bytebigendian().

fetch_codestream4bytebigendian()

Byte4_t fetch_codestream4bytebigendian	(	codestream_param_t *	cs,
		OPJ_OFF_T	offset
	)

fetch Codestream 4-byte big endian Byte codes in file stream

Parameters

[in]	cs	codestream pointer
[in]	offset	start Byte position in codestream

Returns

fetched code

References codestream_param::fd, fetch_4bytebigendian(), and codestream_param::offset.

Referenced by fetch_marker4bytebigendian().

fetch_codestreambytes()

Byte_t* fetch_codestreambytes	(	codestream_param_t *	cs,
		OPJ_OFF_T	offset,
		OPJ_SIZE_T	size
	)

fetch Codestream bytes of data in file stream

Parameters

[in]	cs	codestream pointer
[in]	offset	start Byte position in codestream
[in]	size	Byte length

Returns

pointer to the fetched data

References codestream_param::fd, fetch_bytes(), and codestream_param::offset.

print_codestream()

void print_codestream

(

codestream_param_t

cs

)

print codestream parameters

Parameters

[in]

cs

codestream

References codestream_param::fd, codestream_param::length, logstream, and codestream_param::offset.

set_codestream()

codestream_param_t set_codestream	(	int	fd,
		OPJ_OFF_T	offset,
		OPJ_SIZE_T	length
	)

set codestream parameters from inputs

Parameters

[in]	fd	file descriptor
[in]	offset	offset in the file
[in]	length	codestream length

Returns

structure of generated codestream parameters

References codestream_param::fd, codestream_param::length, and codestream_param::offset.

Referenced by set_cidxdata().