openjpeg/libopenjpeg/jp2.h
Francois-Olivier Devaux cc42bfbaaa Comments added
2004-07-16 13:39:09 +00:00

123 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;
} 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, j2k_image_t * img);
/* int jp2_write_jp2c(j2k_image_t * img, j2k_cp_t * cp, char *jp2_buffer,
* char *index);
*
* Write the jp2c codestream box
* img: the j2k_image that will be compressed
* jp2_buffer: the buffer that will recieve the compressed data
* index: the name of the index file
*/
int jp2_write_jp2c(j2k_image_t * img, j2k_cp_t * cp, char *jp2_buffer,
char *index);
/* 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_encode(jp2_struct_t * jp2_struct, j2k_cp_t * cp, char *output,
* char *index);
*
* Encode a JP2 file
* jp2_buffer: the buffer containing the pointer to the image to encode
* cp: coding parameters of the image
* outbuf: pointer to memory where compressed data will be written
* index: the name of the index file
*/
int jp2_encode(jp2_struct_t * jp2_struct, j2k_cp_t * cp, char *output,
char *index);
/* int jp2_decode(unsigned char *src, int len, jp2_struct_t * jp2_struct,
* j2k_cp_t * cp);
*
* Decode a JP2 file
* src: pointer to memory where compressed data is stored
* len: length of src buffer
* jp2_struct: the jp2 structure that will be created
* cp: coding parameters of the image
*/
int jp2_decode(unsigned char *src, int len, jp2_struct_t * jp2_struct,
j2k_cp_t * cp);
#endif