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/*
* Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
* Copyright (c) 2002-2007, Professor Benoit Macq
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2005, Herve Drolon, FreeImage Team
* 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
/**
@file jp2.h
@brief The JPEG-2000 file format Reader/Writer (JP2)
*/
/** @defgroup JP2 JP2 - JPEG-2000 file format reader/writer */
/*@{*/
#define JPIP_JPIP 0x6a706970
#define JP2_JP 0x6a502020 /**< JPEG 2000 signature box */
#define JP2_FTYP 0x66747970 /**< File type box */
#define JP2_JP2H 0x6a703268 /**< JP2 header box */
#define JP2_IHDR 0x69686472 /**< Image header box */
#define JP2_COLR 0x636f6c72 /**< Colour specification box */
#define JP2_JP2C 0x6a703263 /**< Contiguous codestream box */
#define JP2_URL 0x75726c20 /**< URL box */
#define JP2_DTBL 0x6474626c /**< Data Reference box */
#define JP2_BPCC 0x62706363 /**< Bits per component box */
#define JP2_JP2 0x6a703220 /**< File type fields */
#define JP2_PCLR 0x70636c72 /**< Palette box */
#define JP2_CMAP 0x636d6170 /**< Component Mapping box */
#define JP2_CDEF 0x63646566 /**< Channel Definition box */
/* ----------------------------------------------------------------------- */
/**
Channel description: channel index, type, assocation
*/
typedef struct opj_jp2_cdef_info
{
unsigned short cn, typ, asoc;
} opj_jp2_cdef_info_t;
/**
Channel descriptions and number of descriptions
*/
typedef struct opj_jp2_cdef
{
opj_jp2_cdef_info_t *info;
unsigned short n;
} opj_jp2_cdef_t;
/**
Component mappings: channel index, mapping type, palette index
*/
typedef struct opj_jp2_cmap_comp
{
unsigned short cmp;
unsigned char mtyp, pcol;
} opj_jp2_cmap_comp_t;
/**
Palette data: table entries, palette columns
*/
typedef struct opj_jp2_pclr
{
unsigned int *entries;
unsigned char *channel_sign;
unsigned char *channel_size;
opj_jp2_cmap_comp_t *cmap;
unsigned short nr_entries, nr_channels;
} opj_jp2_pclr_t;
/**
Collector for ICC profile, palette, component mapping, channel description
*/
typedef struct opj_jp2_color
{
unsigned char *icc_profile_buf;
int icc_profile_len;
opj_jp2_cdef_t *jp2_cdef;
opj_jp2_pclr_t *jp2_pclr;
unsigned char jp2_has_colr;
} opj_jp2_color_t;
/**
JP2 component
*/
typedef struct opj_jp2_comps {
int depth;
int sgnd;
int bpcc;
} opj_jp2_comps_t;
/**
JPEG-2000 file format reader/writer
*/
typedef struct opj_jp2 {
/** codec context */
opj_common_ptr cinfo;
/** handle to the J2K codec */
opj_j2k_t *j2k;
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;
opj_jp2_comps_t *comps;
unsigned int j2k_codestream_offset;
unsigned int j2k_codestream_length;
} opj_jp2_t;
/**
JP2 Box
*/
typedef struct opj_jp2_box {
int length;
int type;
int init_pos;
} opj_jp2_box_t;
/** @name Exported functions */
/*@{*/
/* ----------------------------------------------------------------------- */
/**
Write the JP2H box - JP2 Header box (used in MJ2)
@param jp2 JP2 handle
@param cio Output buffer stream
*/
void jp2_write_jp2h(opj_jp2_t *jp2, opj_cio_t *cio);
/**
Read the JP2H box - JP2 Header box (used in MJ2)
@param jp2 JP2 handle
@param cio Input buffer stream
@param ext Collector for profile, cdef and pclr data
@return Returns true if successful, returns false otherwise
*/
bool jp2_read_jp2h(opj_jp2_t *jp2, opj_cio_t *cio, opj_jp2_color_t *color);
/**
Creates a JP2 decompression structure
@param cinfo Codec context info
@return Returns a handle to a JP2 decompressor if successful, returns NULL otherwise
*/
opj_jp2_t* jp2_create_decompress(opj_common_ptr cinfo);
/**
Destroy a JP2 decompressor handle
@param jp2 JP2 decompressor handle to destroy
*/
void jp2_destroy_decompress(opj_jp2_t *jp2);
/**
Setup the decoder decoding parameters using user parameters.
Decoding parameters are returned in jp2->j2k->cp.
@param jp2 JP2 decompressor handle
@param parameters decompression parameters
*/
void jp2_setup_decoder(opj_jp2_t *jp2, opj_dparameters_t *parameters);
/**
Decode an image from a JPEG-2000 file stream
@param jp2 JP2 decompressor handle
@param cio Input buffer stream
@param cstr_info Codestream information structure if required, NULL otherwise
@return Returns a decoded image if successful, returns NULL otherwise
*/
opj_image_t* jp2_decode(opj_jp2_t *jp2, opj_cio_t *cio, opj_codestream_info_t *cstr_info);
/**
Creates a JP2 compression structure
@param cinfo Codec context info
@return Returns a handle to a JP2 compressor if successful, returns NULL otherwise
*/
opj_jp2_t* jp2_create_compress(opj_common_ptr cinfo);
/**
Destroy a JP2 compressor handle
@param jp2 JP2 compressor handle to destroy
*/
void jp2_destroy_compress(opj_jp2_t *jp2);
/**
Setup the encoder parameters using the current image and using user parameters.
Coding parameters are returned in jp2->j2k->cp.
@param jp2 JP2 compressor handle
@param parameters compression parameters
@param image input filled image
*/
void jp2_setup_encoder(opj_jp2_t *jp2, opj_cparameters_t *parameters, opj_image_t *image);
/**
Encode an image into a JPEG-2000 file stream
@param jp2 JP2 compressor handle
@param cio Output buffer stream
@param image Image to encode
@param cstr_info Codestream information structure if required, NULL otherwise
@return Returns true if successful, returns false otherwise
*/
bool jp2_encode(opj_jp2_t *jp2, opj_cio_t *cio, opj_image_t *image, opj_codestream_info_t *cstr_info);
/* ----------------------------------------------------------------------- */
/*@}*/
/*@}*/
#endif /* __JP2_H */
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