openjpeg/libopenjpeg/jp2.h

119 lines
3.9 KiB
C

/*
* Copyright (c) 2003, Yannick Verschueren
* Copyright (c) 2003, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __JP2_H
#define __JP2_H
#include "j2k.h"
typedef struct {
int depth;
int sgnd;
int bpcc;
} jp2_comps_t;
typedef struct {
unsigned int w;
unsigned int h;
unsigned int numcomps;
unsigned int bpc;
unsigned int C;
unsigned int UnkC;
unsigned int IPR;
unsigned int meth;
unsigned int approx;
unsigned int enumcs;
unsigned int precedence;
unsigned int brand;
unsigned int minversion;
unsigned int numcl;
unsigned int *cl;
jp2_comps_t *comps;
j2k_image_t *image;
unsigned int j2k_codestream_offset;
unsigned int j2k_codestream_len;
} jp2_struct_t;
typedef struct {
int length;
int type;
int init_pos;
} jp2_box_t;
/* int jp2_init_stdjp2(jp2_struct_t * jp2_struct, j2k_image_t * img);
*
* Create a standard jp2_structure
* jp2_struct: the structure you are creating
* img: a j2k_image_t wich will help you to create the jp2_structure
*/
int jp2_init_stdjp2(jp2_struct_t * jp2_struct);
/* int jp2_write_jp2c(int j2k_len, int *j2k_codestream_offset, char *j2k_codestream)
*
* Write the jp2c codestream box
* j2k_len: the j2k codestream length
* j2k_codestream_offset: the function will return the j2k codestream offset
* j2k_codestream: the j2k codestream to include in jp2 file
*/
int jp2_write_jp2c(int j2k_len, int *j2k_codestream_offset, char *j2k_codestream);
/* int jp2_write_jp2h(jp2_struct_t * jp2_struct);
*
* Write the jp2h header box
* jp2_struct: the jp2 structure you are working with
*/
void jp2_write_jp2h(jp2_struct_t * jp2_struct);
/* int jp2_read_jp2h(jp2_struct_t * jp2_struct);
*
* Read the jp2h header box
* jp2_struct: the jp2 structure you are working with
*/
int jp2_read_jp2h(jp2_struct_t * jp2_struct);
/* int jp2_wrap_j2k(jp2_struct_t * jp2_struct, char *j2k_codestream,
int j2k_len, char *output)
*
* Wrap a J2K codestream in a JP2 file
* jp2_struct: the jp2 structure used to create jp2 boxes
* j2k_codestream: the j2k codestream to include in jp2 file
* output: pointer to jp2 codestream that will be created
*/
int jp2_wrap_j2k(jp2_struct_t * jp2_struct, char *j2k_codestream,
char *output);
/* int jp2_read_struct(unsigned char *src, jp2_struct_t * jp2_struct);
*
* Decode the structure of a JP2 file
* src: pointer to memory where compressed data is stored
* jp2_struct: the jp2 structure that will be created
* len: length of jp2 codestream
*/
int jp2_read_struct(unsigned char *src, jp2_struct_t * jp2_struct, int len);
#endif