2 * Copyright (c) 2001-2002, David Janssens
3 * Copyright (c) 2002-2003, Yannick Verschueren
4 * Copyright (c) 2002-2003, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
29 #define VERSION "0.0.8"
33 #define LIBJ2K_API __declspec(dllexport)
35 #define LIBJ2K_API __declspec(dllimport)
44 #define J2K_MAXRLVLS 33 /* Number of maximum resolution level authorized */
45 #define J2K_MAXBANDS (3*J2K_MAXRLVLS-2) /* Number of maximum sub-band linked to number of resolution level */
55 #define J2K_CP_CSTY_PRT 0x01
56 #define J2K_CP_CSTY_SOP 0x02
57 #define J2K_CP_CSTY_EPH 0x04
58 #define J2K_CCP_CSTY_PRT 0x01
59 #define J2K_CCP_CBLKSTY_LAZY 0x01
60 #define J2K_CCP_CBLKSTY_RESET 0x02
61 #define J2K_CCP_CBLKSTY_TERMALL 0x04
62 #define J2K_CCP_CBLKSTY_VSC 0x08
63 #define J2K_CCP_CBLKSTY_PTERM 0x10
64 #define J2K_CCP_CBLKSTY_SEGSYM 0x20
65 #define J2K_CCP_QNTSTY_NOQNT 0
66 #define J2K_CCP_QNTSTY_SIQNT 1
67 #define J2K_CCP_QNTSTY_SEQNT 2
70 int dx, dy; /* XRsiz, YRsiz */
71 int w, h; /* width and height of data */
72 int x0, y0; /* offset of the component compare to the whole image */
73 int prec; /* precision */
74 int bpp; /* deapth of image in bits */
75 int sgnd; /* signed */
76 int resno_decoded; /* number of decoded resolution */
77 int factor; /* number of division by 2 of the out image compare to the original size of image */
78 int *data; /* image-component data */
82 int x0, y0; /* XOsiz, YOsiz */
83 int x1, y1; /* Xsiz, Ysiz */
84 int numcomps; /* number of components */
85 int color_space; /* sRGB, Greyscale or YUV */
86 j2k_comp_t *comps; /* image-components */
90 int expn; /* exponent */
91 int mant; /* mantissa */
95 int csty; /* coding style */
96 int numresolutions; /* number of resolutions */
97 int cblkw; /* width of code-blocks */
98 int cblkh; /* height of code-blocks */
99 int cblksty; /* code-block coding style */
100 int qmfbid; /* discrete wavelet transform identifier */
101 int qntsty; /* quantisation style */
102 j2k_stepsize_t stepsizes[J2K_MAXBANDS]; /* stepsizes used for quantization */
103 int numgbits; /* number of guard bits */
104 int roishift; /* Region Of Interest shift */
105 int prcw[J2K_MAXRLVLS]; /* Precinct width */
106 int prch[J2K_MAXRLVLS]; /* Precinct height */
111 int layno1, resno1, compno1;
118 int first; /* 1 : first part-tile of a tile */
119 int csty; /* coding style */
120 int prg; /* progression order */
121 int numlayers; /* number of layers */
122 int mct; /* multi-component transform identifier */
123 int rates[100]; /* rates of layers */
124 int numpocs; /* number of progression order changes */
125 int POC; /* Precise if a POC marker has been used O:NO, 1:YES */
126 j2k_poc_t pocs[32]; /* progression order changes */
127 unsigned char *ppt_data; /* packet header store there for futur use in t2_decode_packet */
128 int ppt; /* If ppt == 1 --> there was a PPT marker for the present tile */
129 int ppt_store; /* Use in case of multiple marker PPT (number of info already store) */
130 int ppt_len; /* ppmbug1 */
131 float distoratio[100]; /* add fixed_quality */
132 j2k_tccp_t *tccps; /* tile-component coding parameters */
136 int intermed_file; /* 1: Store each encoded tile one by one in the output file (for mega-Images)*/
137 int decod_format; /* 0: PGX, 1: PxM, 2: BMP */
138 int cod_format; /* 0: J2K, 1: JP2, 2: JPT */
139 int disto_alloc; /* Allocation by rate/distortion */
140 int fixed_alloc; /* Allocation by fixed layer */
141 int fixed_quality; /* add fixed_quality */
142 int reduce; /* if != 0, then original dimension divided by 2^(reduce); if == 0 or not used, image is decoded to the full resolution */
143 int layer; /* if != 0, then only the first "layer" layers are decoded; if == 0 or not used, all the quality layers are decoded */
144 int index_on; /* 0 = no index || 1 = index */
145 int tx0, ty0; /* XTOsiz, YTOsiz */
146 int tdx, tdy; /* XTsiz, YTsiz */
147 char *comment; /* comment for coding */
148 int tw, th; /* number of tiles in width and heigth */
149 int *tileno; /* ID number of the tiles present in the codestream */
150 int tileno_size; /* size of the vector tileno */
151 unsigned char *ppm_data; /* packet header store there for futur use in t2_decode_packet */
152 int ppm; /* If ppm == 1 --> there was a PPM marker for the present tile */
153 int ppm_store; /* Use in case of multiple marker PPM (number of info already store) */
154 int ppm_previous; /* Use in case of multiple marker PPM (case on non-finished previous info) */
155 int ppm_len; /* ppmbug1 */
156 j2k_tcp_t *tcps; /* tile coding parameters */
157 int *matrice; /* Fixed layer */
161 int start_pos, end_pos; /* start and end position */
162 double disto; /* ADD for Marcela */
163 } info_packet; /* Index struct */
166 double *thresh; /* value of thresh for each layer by tile cfr. Marcela */
167 int num_tile; /* Number of Tile */
168 int start_pos; /* Start position */
169 int end_header; /* End position of the header */
170 int end_pos; /* End position */
171 int pw[33], ph[33]; /* precinct number for each resolution level */
173 int pdx[33], pdy[33]; /* precinct size (in power of 2), in X and Y for each resolution level */
174 info_packet *packet; /* information concerning packets inside tile */
175 int nbpix; /* add fixed_quality */
176 double distotile; /* add fixed_quality */
177 } info_tile; /* index struct */
181 double D_max; /* ADD for Marcela */
182 int num; /* numero of packet */
183 int index_write; /* writing the packet inthe index with t2_encode_packets */
184 int Im_w, Im_h; /* Image width and Height */
185 int Prog; /* progression order */
186 int Tile_x, Tile_y; /* Tile size in x and y */
187 int Tile_Ox, Tile_Oy;
188 int tw, th; /* Number of Tile in X and Y */
189 int Comp; /* Component numbers */
190 int Layer; /* number of layer */
191 int Decomposition; /* number of decomposition */
192 int Main_head_end; /* Main header position */
193 int codestream_size; /* codestream's size */
194 info_tile *tile; /* information concerning tiles inside image */
195 } info_image; /* index struct */
198 * Encode an image into a JPEG-2000 codestream
200 * cp: coding parameters
201 * output: destination buffer or name of the output file when cp->intermed_file==1
202 * len: length of destination buffer
203 * index : index file name
205 LIBJ2K_API int j2k_encode(j2k_image_t * i, j2k_cp_t * cp, char *output,
206 int len, char *index);
208 /* LIBJ2K_API int j2k_encode(j2k_image_t *i, j2k_cp_t *cp,unsigned char *dest, int len); */
210 * Decode an image from a JPEG-2000 codestream
212 * len: length of source buffer
214 * cp: coding parameters that were used to encode the image
217 LIBJ2K_API int j2k_decode(unsigned char *src, int len, j2k_image_t * img,
222 * Decode an image form a JPT-stream (JPEG 2000, JPIP)
224 * len: length of source buffer
226 * cp: coding parameters that were used to encode the image
229 int j2k_decode_jpt_stream(unsigned char *src, int len, j2k_image_t * img,
232 void j2k_dec_release();//antonin