j2kheader_manager.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <assert.h>
#include "j2kheader_manager.h"

Macros
#define	FCGI_stdout   stdout
#define	FCGI_stderr   stderr
#define	logstream   stderr

Functions
SIZmarker_param_t	get_SIZmkrdata_from_j2kstream (Byte_t *SIZstream)
CODmarker_param_t	get_CODmkrdata_from_j2kstream (Byte_t *CODstream)
OPJ_BOOL	get_mainheader_from_j2kstream (Byte_t *j2kstream, SIZmarker_param_t *SIZ, CODmarker_param_t *COD)
	get main header information from j2k codestream More...
OPJ_BOOL	modify_SIZmkrstream (SIZmarker_param_t SIZ, int difOfdecomplev, Byte_t *SIZstream)
Byte2_t	modify_CODmkrstream (CODmarker_param_t COD, int numOfdecomp, Byte_t *CODstream)
OPJ_BOOL	modify_mainheader (Byte_t *j2kstream, int numOfdecomp, SIZmarker_param_t SIZ, CODmarker_param_t COD, Byte8_t *j2klen)
	modify main header in j2k codestream to fit with the new number of decompositions More...
OPJ_BOOL	modify_COCmkrstream (int numOfdecomp, Byte_t *COCstream, Byte2_t Csiz, Byte2_t *oldLcoc, Byte2_t *newLcoc)
OPJ_BOOL	modify_tileheader (Byte_t *j2kstream, Byte8_t SOToffset, int numOfdecomp, Byte2_t Csiz, Byte8_t *j2klen)
	modify tile header in j2k codestream to fit with the tile part length, and new number of decompositions for multi-componet images More...

Macro Definition Documentation

FCGI_stderr

#define FCGI_stderr   stderr

FCGI_stdout

#define FCGI_stdout   stdout

logstream

#define logstream   stderr

Function Documentation

get_CODmkrdata_from_j2kstream()

CODmarker_param_t get_CODmkrdata_from_j2kstream

(

Byte_t *

CODstream

)

References big2(), FCGI_stderr, CODmarker_param::Lcod, CODmarker_param::numOfdecomp, CODmarker_param::numOflayers, opj_malloc(), CODmarker_param::prog_order, CODmarker_param::Scod, CODmarker_param::XPsiz, and CODmarker_param::YPsiz.

Referenced by get_mainheader_from_j2kstream().

get_mainheader_from_j2kstream()

OPJ_BOOL get_mainheader_from_j2kstream	(	Byte_t *	j2kstream,
		SIZmarker_param_t *	SIZ,
		CODmarker_param_t *	COD
	)

get main header information from j2k codestream

Parameters

[in]	j2kstream	j2k codestream
[out]	SIZ	SIZ marker pointer
[out]	COD	COD marker pointer

Returns

if succeeded (true) or failed (false)

References big2(), FCGI_stderr, get_CODmkrdata_from_j2kstream(), get_SIZmkrdata_from_j2kstream(), CODmarker_param::Lcod, SIZmarker_param::Lsiz, OPJ_FALSE, and OPJ_TRUE.

Referenced by get_SIZ_from_jpipstream(), recons_codestream_from_JPPstream(), and recons_codestream_from_JPTstream().

get_SIZmkrdata_from_j2kstream()

SIZmarker_param_t get_SIZmkrdata_from_j2kstream

(

Byte_t *

SIZstream

)

References big2(), big4(), SIZmarker_param::Csiz, FCGI_stderr, SIZmarker_param::Lsiz, SIZmarker_param::Rsiz, SIZmarker_param::Ssiz, SIZmarker_param::XOsiz, SIZmarker_param::XRsiz, SIZmarker_param::Xsiz, SIZmarker_param::XTnum, SIZmarker_param::XTOsiz, SIZmarker_param::XTsiz, SIZmarker_param::YOsiz, SIZmarker_param::YRsiz, SIZmarker_param::Ysiz, SIZmarker_param::YTnum, SIZmarker_param::YTOsiz, and SIZmarker_param::YTsiz.

Referenced by get_mainheader_from_j2kstream().

modify_COCmkrstream()

OPJ_BOOL modify_COCmkrstream	(	int	numOfdecomp,
		Byte_t *	COCstream,
		Byte2_t	Csiz,
		Byte2_t *	oldLcoc,
		Byte2_t *	newLcoc
	)

References big2(), FCGI_stderr, OPJ_FALSE, and OPJ_TRUE.

Referenced by modify_tileheader().

modify_CODmkrstream()

Byte2_t modify_CODmkrstream	(	CODmarker_param_t	COD,
		int	numOfdecomp,
		Byte_t *	CODstream
	)

References FCGI_stderr, CODmarker_param::Lcod, and CODmarker_param::Scod.

Referenced by modify_mainheader().

modify_mainheader()

OPJ_BOOL modify_mainheader	(	Byte_t *	j2kstream,
		int	numOfdecomp,
		SIZmarker_param_t	SIZ,
		CODmarker_param_t	COD,
		Byte8_t *	j2klen
	)

modify main header in j2k codestream to fit with the new number of decompositions

Parameters

[in]	j2kstream	j2k codestream
[in]	numOfdecomp	the New number of decompositions
[in]	SIZ	original SIZ marker information
[in]	COD	original COD marker information
[out]	j2klen	pointer to the length of j2k code stream

Returns

if succeeded (true) or failed (false)

References FCGI_stderr, CODmarker_param::Lcod, SIZmarker_param::Lsiz, modify_CODmkrstream(), modify_SIZmkrstream(), CODmarker_param::numOfdecomp, OPJ_FALSE, and OPJ_TRUE.

Referenced by recons_codestream_from_JPPstream().

modify_SIZmkrstream()

OPJ_BOOL modify_SIZmkrstream	(	SIZmarker_param_t	SIZ,
		int	difOfdecomplev,
		Byte_t *	SIZstream
	)

References FCGI_stderr, modify_4Bytecode(), OPJ_FALSE, OPJ_TRUE, SIZmarker_param::XOsiz, SIZmarker_param::Xsiz, SIZmarker_param::XTOsiz, SIZmarker_param::XTsiz, SIZmarker_param::YOsiz, SIZmarker_param::Ysiz, SIZmarker_param::YTOsiz, and SIZmarker_param::YTsiz.

Referenced by modify_mainheader().

modify_tileheader()

OPJ_BOOL modify_tileheader	(	Byte_t *	j2kstream,
		Byte8_t	SOToffset,
		int	numOfdecomp,
		Byte2_t	Csiz,
		Byte8_t *	j2klen
	)

modify tile header in j2k codestream to fit with the tile part length, and new number of decompositions for multi-componet images

Parameters

[in]	j2kstream	j2k codestream
[in]	SOToffset	offset of SOT marker from the beginning of j2kstream
[in]	numOfdecomp	the New number of decompositions, -1 if the same as original
[in]	Csiz	number of components
[out]	j2klen	pointer to the length of j2k code stream

Returns

if succeeded (true) or failed (false)

References FCGI_stderr, modify_4Bytecode(), modify_COCmkrstream(), OPJ_FALSE, and OPJ_TRUE.

Referenced by recons_codestream_from_JPPstream().