239 lines
10 KiB
C
239 lines
10 KiB
C
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/*
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* Copyright (c) 2001-2002, David Janssens
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* Copyright (c) 2002-2003, Yannick Verschueren
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* Copyright (c) 2002-2003, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#define VERSION "0.0.8"
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//#include "jpw.h"
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#ifdef DAVID_WIN32
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#ifdef LIBJ2K_EXPORTS
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#define LIBJ2K_API __declspec(dllexport)
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#else
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#define LIBJ2K_API __declspec(dllimport)
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#endif
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#else
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#define LIBJ2K_API
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#endif
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#ifndef __J2K_H
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#define __J2K_H
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#define J2K_MAXRLVLS 33 /* Number of maximum resolution level authorized */
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#define J2K_MAXBANDS (3*J2K_MAXRLVLS-2) /* Number of maximum sub-band linked to number of resolution level */
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#define J2K_CP_CSTY_PRT 0x01
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#define J2K_CP_CSTY_SOP 0x02
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#define J2K_CP_CSTY_EPH 0x04
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#define J2K_CCP_CSTY_PRT 0x01
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#define J2K_CCP_CBLKSTY_LAZY 0x01
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#define J2K_CCP_CBLKSTY_RESET 0x02
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#define J2K_CCP_CBLKSTY_TERMALL 0x04
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#define J2K_CCP_CBLKSTY_VSC 0x08
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#define J2K_CCP_CBLKSTY_PTERM 0x10
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#define J2K_CCP_CBLKSTY_SEGSYM 0x20
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#define J2K_CCP_QNTSTY_NOQNT 0
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#define J2K_CCP_QNTSTY_SIQNT 1
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#define J2K_CCP_QNTSTY_SEQNT 2
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typedef struct {
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int dx, dy; /* XRsiz, YRsiz */
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int w, h; /* width and height of data */
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int x0, y0; /* offset of the component compare to the whole image */
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int prec; /* precision */
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int bpp; /* deapth of image in bits */
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int sgnd; /* signed */
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int resno_decoded; /* number of decoded resolution */
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int factor; /* number of division by 2 of the out image compare to the original size of image */
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int *data; /* image-component data */
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} j2k_comp_t;
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typedef struct {
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int x0, y0; /* XOsiz, YOsiz */
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int x1, y1; /* Xsiz, Ysiz */
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int numcomps; /* number of components */
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int color_space; /* sRGB, Greyscale or YUV */
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j2k_comp_t *comps; /* image-components */
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} j2k_image_t;
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typedef struct {
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int expn; /* exponent */
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int mant; /* mantissa */
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} j2k_stepsize_t;
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typedef struct {
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int csty; /* coding style */
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int numresolutions; /* number of resolutions */
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int cblkw; /* width of code-blocks */
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int cblkh; /* height of code-blocks */
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int cblksty; /* code-block coding style */
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int qmfbid; /* discrete wavelet transform identifier */
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int qntsty; /* quantisation style */
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j2k_stepsize_t stepsizes[J2K_MAXBANDS]; /* stepsizes used for quantization */
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int numgbits; /* number of guard bits */
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int roishift; /* Region Of Interest shift */
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int prcw[J2K_MAXRLVLS]; /* Precinct width */
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int prch[J2K_MAXRLVLS]; /* Precinct height */
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} j2k_tccp_t;
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typedef struct {
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int resno0, compno0;
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int layno1, resno1, compno1;
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int prg;
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int tile;
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char progorder[4];
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} j2k_poc_t;
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typedef struct {
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int first; /* 1 : first part-tile of a tile */
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int csty; /* coding style */
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int prg; /* progression order */
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int numlayers; /* number of layers */
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int mct; /* multi-component transform identifier */
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int rates[100]; /* rates of layers */
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int numpocs; /* number of progression order changes */
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int POC; /* Precise if a POC marker has been used O:NO, 1:YES */
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j2k_poc_t pocs[32]; /* progression order changes */
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unsigned char *ppt_data; /* packet header store there for futur use in t2_decode_packet */
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int ppt; /* If ppt == 1 --> there was a PPT marker for the present tile */
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int ppt_store; /* Use in case of multiple marker PPT (number of info already store) */
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int ppt_len; /* ppmbug1 */
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float distoratio[100]; /* add fixed_quality */
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j2k_tccp_t *tccps; /* tile-component coding parameters */
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} j2k_tcp_t;
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typedef struct {
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int JPEG2000_format; /* 0: J2K 1:JP2 */
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int intermed_file; /* 1: Store each encoded tile one by one in the output file (for mega-Images)*/
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int image_type; /* 0: PNM, PGM, PPM 1: PGX */
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int disto_alloc; /* Allocation by rate/distortion */
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int fixed_alloc; /* Allocation by fixed layer */
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int fixed_quality; /* add fixed_quality */
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int reduce_on; /* option reduce is used if reduce = 1 */
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int reduce_value; /* if option reduce is used -> original dimension divided by 2^value */
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int index_on; /* 0 = no index || 1 = index */
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int tx0, ty0; /* XTOsiz, YTOsiz */
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int tdx, tdy; /* XTsiz, YTsiz */
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char *comment; /* comment for coding */
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int tw, th; /* number of tiles in width and heigth */
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int *tileno; /* ID number of the tiles present in the codestream */
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int tileno_size; /* size of the vector tileno */
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unsigned char *ppm_data; /* packet header store there for futur use in t2_decode_packet */
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int ppm; /* If ppm == 1 --> there was a PPM marker for the present tile */
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int ppm_store; /* Use in case of multiple marker PPM (number of info already store) */
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int ppm_previous; /* Use in case of multiple marker PPM (case on non-finished previous info) */
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int ppm_len; /* ppmbug1 */
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j2k_tcp_t *tcps; /* tile coding parameters */
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int *matrice; /* Fixed layer */
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} j2k_cp_t;
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typedef struct {
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int start_pos, end_pos; /* start and end position */
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double disto; /* ADD for Marcela */
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} info_packet; /* Index struct */
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typedef struct {
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double *thresh; /* value of thresh for each layer by tile cfr. Marcela */
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int num_tile; /* Number of Tile */
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int start_pos; /* Start position */
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int end_header; /* End position of the header */
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int end_pos; /* End position */
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int pw[33], ph[33]; /* precinct number for each resolution level */
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int pdx[33], pdy[33]; /* precinct size (in power of 2), in X and Y for each resolution level */
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info_packet *packet; /* information concerning packets inside tile */
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int nbpix; /* add fixed_quality */
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double distotile; /* add fixed_quality */
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} info_tile; /* index struct */
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typedef struct {
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int index_on;
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double D_max; /* ADD for Marcela */
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int num; /* numero of packet */
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int index_write; /* writing the packet inthe index with t2_encode_packets */
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int Im_w, Im_h; /* Image width and Height */
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int Prog; /* progression order */
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int Tile_x, Tile_y; /* Tile size in x and y */
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int tw, th; /* Number of Tile in X and Y */
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int Comp; /* Component numbers */
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int Layer; /* number of layer */
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int Decomposition; /* number of decomposition */
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int Main_head_end; /* Main header position */
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int codestream_size; /* codestream's size */
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info_tile *tile; /* information concerning tiles inside image */
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} info_image; /* index struct */
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// index struct correction
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void pack_corr(unsigned long corr, int tileno);
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//write index file
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void write_index(char *index, unsigned long CL);
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void j2k_clean();
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void j2k_free_info();
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void j2k_free_tcd();
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/*
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* Encode an image into a JPEG-2000 codestream
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* i: image to encode
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* cp: coding parameters
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* output: destination buffer or name of the output file when cp->intermed_file==1
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* len: length of destination buffer
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* index : index file name
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*/
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LIBJ2K_API int j2k_encode(j2k_image_t * i, j2k_cp_t * cp, char *output,
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int len, char *index);
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/* LIBJ2K_API int j2k_encode(j2k_image_t *i, j2k_cp_t *cp,unsigned char *dest, int len); */
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/*
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* Decode an image from a JPEG-2000 codestream
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* src: source buffer
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* len: length of source buffer
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* i: decode image
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* cp: coding parameters that were used to encode the image
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*/
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LIBJ2K_API int j2k_decode(unsigned char *src, int len, j2k_image_t * img,
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j2k_cp_t * cp);
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/*
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* Decode an image form a JPT-stream (JPEG 2000, JPIP)
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* src: source buffer
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* len: length of source buffer
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* i: decode image
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* cp: coding parameters that were used to encode the image
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*
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*/
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int j2k_decode_jpt_stream(unsigned char *src, int len, j2k_image_t * img,
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j2k_cp_t * cp);
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#endif
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