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Diffstat (limited to 'libopenjpeg/j2k.h')
| -rw-r--r-- | libopenjpeg/j2k.h | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/libopenjpeg/j2k.h b/libopenjpeg/j2k.h new file mode 100644 index 00000000..3ad9cb00 --- /dev/null +++ b/libopenjpeg/j2k.h @@ -0,0 +1,185 @@ +/* + * Copyright (c) 2001-2002, David Janssens + * Copyright (c) 2002-2003, Yannick Verschueren + * Copyright (c) 2002-2003, 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. + */ + +#define VERSION "0.0.8" + +#ifdef DAVID_WIN32 +#ifdef LIBJ2K_EXPORTS +#define LIBJ2K_API __declspec(dllexport) +#else +#define LIBJ2K_API __declspec(dllimport) +#endif +#else +#define LIBJ2K_API +#endif + +#ifndef __J2K_H +#define __J2K_H + +#define J2K_MAXRLVLS 33 +#define J2K_MAXBANDS (3*J2K_MAXRLVLS+1) + +#define J2K_CP_CSTY_PRT 0x01 +#define J2K_CP_CSTY_SOP 0x02 +#define J2K_CP_CSTY_EPH 0x04 +#define J2K_CCP_CSTY_PRT 0x01 +#define J2K_CCP_CBLKSTY_LAZY 0x01 +#define J2K_CCP_CBLKSTY_RESET 0x02 +#define J2K_CCP_CBLKSTY_TERMALL 0x04 +#define J2K_CCP_CBLKSTY_VSC 0x08 +#define J2K_CCP_CBLKSTY_PTERM 0x10 +#define J2K_CCP_CBLKSTY_SEGSYM 0x20 +#define J2K_CCP_QNTSTY_NOQNT 0 +#define J2K_CCP_QNTSTY_SIQNT 1 +#define J2K_CCP_QNTSTY_SEQNT 2 + +typedef struct { + int dx, dy; /* XRsiz, YRsiz */ + int prec; /* precision */ + int bpp; /* deapth of image in bits */ + int sgnd; /* signed */ + int *data; /* image-component data */ +} j2k_comp_t; + +typedef struct { + int x0, y0; /* XOsiz, YOsiz */ + int x1, y1; /* Xsiz, Ysiz */ + int numcomps; /* number of components */ + int index_on; /* 0 = no index || 1 = index */ + /* int PPT; */ + j2k_comp_t *comps; /* image-components */ +} j2k_image_t; + +typedef struct { + int expn; /* exponent */ + int mant; /* mantissa */ +} j2k_stepsize_t; + +typedef struct { + int csty; /* coding style */ + int numresolutions; /* number of resolutions */ + int cblkw; /* width of code-blocks */ + int cblkh; /* height of code-blocks */ + int cblksty; /* code-block coding style */ + int qmfbid; /* discrete wavelet transform identifier */ + int qntsty; /* quantisation style */ + j2k_stepsize_t stepsizes[J2K_MAXBANDS]; /* stepsizes used for quantisation */ + int numgbits; /* number of guard bits */ + int roishift; /* Region Of Interest shift */ + int prcw[J2K_MAXRLVLS]; /* Precinct width */ + int prch[J2K_MAXRLVLS]; /* Precinct height */ +} j2k_tccp_t; + +typedef struct { + int resno0, compno0; + int layno1, resno1, compno1; + int prg; + int tile; + char progorder[4]; +} j2k_poc_t; + +typedef struct { + int csty; /* coding style */ + int prg; /* progression order */ + int numlayers; /* number of layers */ + int mct; /* multi-component transform identifier */ + int rates[100]; /* rates of layers */ + int numpocs; /* number of progression order changes */ + j2k_poc_t pocs[32]; /* progression order changes */ + j2k_tccp_t *tccps; /* tile-component coding parameters */ +} j2k_tcp_t; + +typedef struct { + int image_type; /* 0: PNM, PGM, PPM 1: PGX */ + int disto_alloc; /* Allocation by rate/distortion */ + int fixed_alloc; /* Allocation by fixed layer */ + int tx0, ty0; /* XTOsiz, YTOsiz */ + int tdx, tdy; /* XTsiz, YTsiz */ + char *comment; /* comment for coding */ + int tw, th; + j2k_tcp_t *tcps; /* tile coding parameters */ +} j2k_cp_t; + +typedef struct { + int start_pos, end_pos; /* start and end position */ + double disto; +} info_packet; /* Index struct */ + +typedef struct { + int num_tile; /* Number of Tile */ + int start_pos; /* Start position */ + int end_header; /* End position of the header */ + int end_pos; /* End position */ + int pw, ph; /* number of precinct by tile */ + info_packet *packet; /* information concerning packets inside tile */ +} info_tile; /* index struct */ + +typedef struct { + int index_on; + double D_max; /* ADD for Marcela */ + int num; /* numero of packet */ + int index_write; /* writing the packet inthe index with t2_encode_packets */ + int Im_w, Im_h; /* Image width and Height */ + int Prog; /* progression order */ + int Tile_x, Tile_y; /* Number of Tile in X and Y */ + int tw, th; + int Comp; /* Component numbers */ + int Layer; /* number of layer */ + int Decomposition; /* number of decomposition */ + int pw, ph; /* nombre precinct in X and Y */ + int pdx, pdy; /* size of precinct in X and Y */ + int Main_head_end; /* Main header position */ + int codestream_size; /* codestream's size */ + info_tile *tile; /* information concerning tiles inside image */ +} info_image; /* index struct */ + + + +/* + * Encode an image into a JPEG-2000 codestream + * i: image to encode + * cp: coding parameters + * dest: destination buffer + * len: length of destination buffer + * index : index file name + */ +LIBJ2K_API int j2k_encode(j2k_image_t * i, j2k_cp_t * cp, char *outfile, + int len, char *index); + +/* LIBJ2K_API int j2k_encode(j2k_image_t *i, j2k_cp_t *cp,unsigned char *dest, int len); */ +/* + * Decode an image from a JPEG-2000 codestream + * src: source buffer + * len: length of source buffer + * i: decode image + * cp: coding parameters that were used to encode the image + */ +LIBJ2K_API int j2k_decode(unsigned char *src, int len, j2k_image_t ** i, + j2k_cp_t ** cp); + +#endif |