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1 vero 1 /*
2 * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
3 * Copyright (c) 2002-2007, Professor Benoit Macq
4 * Copyright (c) 2001-2003, David Janssens
5 * Copyright (c) 2002-2003, Yannick Verschueren
6 * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
7 * Copyright (c) 2005, Herve Drolon, FreeImage Team
8 * Copyright (c) 2006-2007, Parvatha Elangovan
9 * Copyright (c) 2010-2011, Kaori Hagihara
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
25 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 */
33 #ifndef OPENJPEG_H
34 #define OPENJPEG_H
35  
36  
37 /*
38 ==========================================================
39 Compiler directives
40 ==========================================================
41 */
42  
43 #if defined(OPJ_STATIC) || !defined(_WIN32)
44 #define OPJ_API
45 #define OPJ_CALLCONV
46 #else
47 #define OPJ_CALLCONV __stdcall
48 /*
49 The following ifdef block is the standard way of creating macros which make exporting
50 from a DLL simpler. All files within this DLL are compiled with the OPJ_EXPORTS
51 symbol defined on the command line. this symbol should not be defined on any project
52 that uses this DLL. This way any other project whose source files include this file see
53 OPJ_API functions as being imported from a DLL, wheras this DLL sees symbols
54 defined with this macro as being exported.
55 */
56 #if defined(OPJ_EXPORTS) || defined(DLL_EXPORT)
57 #define OPJ_API __declspec(dllexport)
58 #else
59 #define OPJ_API __declspec(dllimport)
60 #endif /* OPJ_EXPORTS */
61 #endif /* !OPJ_STATIC || !_WIN32 */
62  
63 typedef int opj_bool;
64 #define OPJ_TRUE 1
65 #define OPJ_FALSE 0
66  
67 /* Avoid compile-time warning because parameter is not used */
68 #define OPJ_ARG_NOT_USED(x) (void)(x)
69 /*
70 ==========================================================
71 Useful constant definitions
72 ==========================================================
73 */
74  
75 #define OPJ_PATH_LEN 4096 /**< Maximum allowed size for filenames */
76  
77 #define J2K_MAXRLVLS 33 /**< Number of maximum resolution level authorized */
78 #define J2K_MAXBANDS (3*J2K_MAXRLVLS-2) /**< Number of maximum sub-band linked to number of resolution level */
79  
80 /* UniPG>> */
81 #define JPWL_MAX_NO_TILESPECS 16 /**< Maximum number of tile parts expected by JPWL: increase at your will */
82 #define JPWL_MAX_NO_PACKSPECS 16 /**< Maximum number of packet parts expected by JPWL: increase at your will */
83 #define JPWL_MAX_NO_MARKERS 512 /**< Maximum number of JPWL markers: increase at your will */
84 #define JPWL_PRIVATEINDEX_NAME "jpwl_index_privatefilename" /**< index file name used when JPWL is on */
85 #define JPWL_EXPECTED_COMPONENTS 3 /**< Expect this number of components, so you'll find better the first EPB */
86 #define JPWL_MAXIMUM_TILES 8192 /**< Expect this maximum number of tiles, to avoid some crashes */
87 #define JPWL_MAXIMUM_HAMMING 2 /**< Expect this maximum number of bit errors in marker id's */
88 #define JPWL_MAXIMUM_EPB_ROOM 65450 /**< Expect this maximum number of bytes for composition of EPBs */
89 /* <<UniPG */
90  
91 /*
92 ==========================================================
93 enum definitions
94 ==========================================================
95 */
96 /**
97 Rsiz Capabilities
98 */
99 typedef enum RSIZ_CAPABILITIES {
100 STD_RSIZ = 0, /** Standard JPEG2000 profile*/
101 CINEMA2K = 3, /** Profile name for a 2K image*/
102 CINEMA4K = 4 /** Profile name for a 4K image*/
103 } OPJ_RSIZ_CAPABILITIES;
104  
105 /**
106 Digital cinema operation mode
107 */
108 typedef enum CINEMA_MODE {
109 OFF = 0, /** Not Digital Cinema*/
110 CINEMA2K_24 = 1, /** 2K Digital Cinema at 24 fps*/
111 CINEMA2K_48 = 2, /** 2K Digital Cinema at 48 fps*/
112 CINEMA4K_24 = 3 /** 4K Digital Cinema at 24 fps*/
113 }OPJ_CINEMA_MODE;
114  
115 /**
116 Progression order
117 */
118 typedef enum PROG_ORDER {
119 PROG_UNKNOWN = -1, /**< place-holder */
120 LRCP = 0, /**< layer-resolution-component-precinct order */
121 RLCP = 1, /**< resolution-layer-component-precinct order */
122 RPCL = 2, /**< resolution-precinct-component-layer order */
123 PCRL = 3, /**< precinct-component-resolution-layer order */
124 CPRL = 4 /**< component-precinct-resolution-layer order */
125 } OPJ_PROG_ORDER;
126  
127 /**
128 Supported image color spaces
129 */
130 typedef enum COLOR_SPACE {
131 CLRSPC_UNKNOWN = -1, /**< not supported by the library */
132 CLRSPC_UNSPECIFIED = 0, /**< not specified in the codestream */
133 CLRSPC_SRGB = 1, /**< sRGB */
134 CLRSPC_GRAY = 2, /**< grayscale */
135 CLRSPC_SYCC = 3 /**< YUV */
136 } OPJ_COLOR_SPACE;
137  
138 /**
139 Supported codec
140 */
141 typedef enum CODEC_FORMAT {
142 CODEC_UNKNOWN = -1, /**< place-holder */
143 CODEC_J2K = 0, /**< JPEG-2000 codestream : read/write */
144 CODEC_JPT = 1, /**< JPT-stream (JPEG 2000, JPIP) : read only */
145 CODEC_JP2 = 2 /**< JPEG-2000 file format : read/write */
146 } OPJ_CODEC_FORMAT;
147  
148 /**
149 Limit decoding to certain portions of the codestream.
150 */
151 typedef enum LIMIT_DECODING {
152 NO_LIMITATION = 0, /**< No limitation for the decoding. The entire codestream will de decoded */
153 LIMIT_TO_MAIN_HEADER = 1, /**< The decoding is limited to the Main Header */
154 DECODE_ALL_BUT_PACKETS = 2 /**< Decode everything except the JPEG 2000 packets */
155 } OPJ_LIMIT_DECODING;
156  
157 /*
158 ==========================================================
159 event manager typedef definitions
160 ==========================================================
161 */
162  
163 /**
164 Callback function prototype for events
165 @param msg Event message
166 @param client_data
167 */
168 typedef void (*opj_msg_callback) (const char *msg, void *client_data);
169  
170 /**
171 Message handler object
172 used for
173 <ul>
174 <li>Error messages
175 <li>Warning messages
176 <li>Debugging messages
177 </ul>
178 */
179 typedef struct opj_event_mgr {
180 /** Error message callback if available, NULL otherwise */
181 opj_msg_callback error_handler;
182 /** Warning message callback if available, NULL otherwise */
183 opj_msg_callback warning_handler;
184 /** Debug message callback if available, NULL otherwise */
185 opj_msg_callback info_handler;
186 } opj_event_mgr_t;
187  
188  
189 /*
190 ==========================================================
191 codec typedef definitions
192 ==========================================================
193 */
194  
195 /**
196 Progression order changes
197 */
198 typedef struct opj_poc {
199 /** Resolution num start, Component num start, given by POC */
200 int resno0, compno0;
201 /** Layer num end,Resolution num end, Component num end, given by POC */
202 int layno1, resno1, compno1;
203 /** Layer num start,Precinct num start, Precinct num end */
204 int layno0, precno0, precno1;
205 /** Progression order enum*/
206 OPJ_PROG_ORDER prg1,prg;
207 /** Progression order string*/
208 char progorder[5];
209 /** Tile number */
210 int tile;
211 /** Start and end values for Tile width and height*/
212 int tx0,tx1,ty0,ty1;
213 /** Start value, initialised in pi_initialise_encode*/
214 int layS, resS, compS, prcS;
215 /** End value, initialised in pi_initialise_encode */
216 int layE, resE, compE, prcE;
217 /** Start and end values of Tile width and height, initialised in pi_initialise_encode*/
218 int txS,txE,tyS,tyE,dx,dy;
219 /** Temporary values for Tile parts, initialised in pi_create_encode */
220 int lay_t, res_t, comp_t, prc_t,tx0_t,ty0_t;
221 } opj_poc_t;
222  
223 /**
224 Compression parameters
225 */
226 typedef struct opj_cparameters {
227 /** size of tile: tile_size_on = false (not in argument) or = true (in argument) */
228 opj_bool tile_size_on;
229 /** XTOsiz */
230 int cp_tx0;
231 /** YTOsiz */
232 int cp_ty0;
233 /** XTsiz */
234 int cp_tdx;
235 /** YTsiz */
236 int cp_tdy;
237 /** allocation by rate/distortion */
238 int cp_disto_alloc;
239 /** allocation by fixed layer */
240 int cp_fixed_alloc;
241 /** add fixed_quality */
242 int cp_fixed_quality;
243 /** fixed layer */
244 int *cp_matrice;
245 /** comment for coding */
246 char *cp_comment;
247 /** csty : coding style */
248 int csty;
249 /** progression order (default LRCP) */
250 OPJ_PROG_ORDER prog_order;
251 /** progression order changes */
252 opj_poc_t POC[32];
253 /** number of progression order changes (POC), default to 0 */
254 int numpocs;
255 /** number of layers */
256 int tcp_numlayers;
257 /** rates of layers */
258 float tcp_rates[100];
259 /** different psnr for successive layers */
260 float tcp_distoratio[100];
261 /** number of resolutions */
262 int numresolution;
263 /** initial code block width, default to 64 */
264 int cblockw_init;
265 /** initial code block height, default to 64 */
266 int cblockh_init;
267 /** mode switch (cblk_style) */
268 int mode;
269 /** 1 : use the irreversible DWT 9-7, 0 : use lossless compression (default) */
270 int irreversible;
271 /** region of interest: affected component in [0..3], -1 means no ROI */
272 int roi_compno;
273 /** region of interest: upshift value */
274 int roi_shift;
275 /* number of precinct size specifications */
276 int res_spec;
277 /** initial precinct width */
278 int prcw_init[J2K_MAXRLVLS];
279 /** initial precinct height */
280 int prch_init[J2K_MAXRLVLS];
281  
282 /**@name command line encoder parameters (not used inside the library) */
283 /*@{*/
284 /** input file name */
285 char infile[OPJ_PATH_LEN];
286 /** output file name */
287 char outfile[OPJ_PATH_LEN];
288 /** DEPRECATED. Index generation is now handeld with the opj_encode_with_info() function. Set to NULL */
289 int index_on;
290 /** DEPRECATED. Index generation is now handeld with the opj_encode_with_info() function. Set to NULL */
291 char index[OPJ_PATH_LEN];
292 /** subimage encoding: origin image offset in x direction */
293 int image_offset_x0;
294 /** subimage encoding: origin image offset in y direction */
295 int image_offset_y0;
296 /** subsampling value for dx */
297 int subsampling_dx;
298 /** subsampling value for dy */
299 int subsampling_dy;
300 /** input file format 0: PGX, 1: PxM, 2: BMP 3:TIF*/
301 int decod_format;
302 /** output file format 0: J2K, 1: JP2, 2: JPT */
303 int cod_format;
304 /*@}*/
305  
306 /* UniPG>> */
307 /**@name JPWL encoding parameters */
308 /*@{*/
309 /** enables writing of EPC in MH, thus activating JPWL */
310 opj_bool jpwl_epc_on;
311 /** error protection method for MH (0,1,16,32,37-128) */
312 int jpwl_hprot_MH;
313 /** tile number of header protection specification (>=0) */
314 int jpwl_hprot_TPH_tileno[JPWL_MAX_NO_TILESPECS];
315 /** error protection methods for TPHs (0,1,16,32,37-128) */
316 int jpwl_hprot_TPH[JPWL_MAX_NO_TILESPECS];
317 /** tile number of packet protection specification (>=0) */
318 int jpwl_pprot_tileno[JPWL_MAX_NO_PACKSPECS];
319 /** packet number of packet protection specification (>=0) */
320 int jpwl_pprot_packno[JPWL_MAX_NO_PACKSPECS];
321 /** error protection methods for packets (0,1,16,32,37-128) */
322 int jpwl_pprot[JPWL_MAX_NO_PACKSPECS];
323 /** enables writing of ESD, (0=no/1/2 bytes) */
324 int jpwl_sens_size;
325 /** sensitivity addressing size (0=auto/2/4 bytes) */
326 int jpwl_sens_addr;
327 /** sensitivity range (0-3) */
328 int jpwl_sens_range;
329 /** sensitivity method for MH (-1=no,0-7) */
330 int jpwl_sens_MH;
331 /** tile number of sensitivity specification (>=0) */
332 int jpwl_sens_TPH_tileno[JPWL_MAX_NO_TILESPECS];
333 /** sensitivity methods for TPHs (-1=no,0-7) */
334 int jpwl_sens_TPH[JPWL_MAX_NO_TILESPECS];
335 /*@}*/
336 /* <<UniPG */
337  
338 /** Digital Cinema compliance 0-not compliant, 1-compliant*/
339 OPJ_CINEMA_MODE cp_cinema;
340 /** Maximum rate for each component. If == 0, component size limitation is not considered */
341 int max_comp_size;
342 /** Profile name*/
343 OPJ_RSIZ_CAPABILITIES cp_rsiz;
344 /** Tile part generation*/
345 char tp_on;
346 /** Flag for Tile part generation*/
347 char tp_flag;
348 /** MCT (multiple component transform) */
349 char tcp_mct;
350 /** Enable JPIP indexing*/
351 opj_bool jpip_on;
352 } opj_cparameters_t;
353  
354 #define OPJ_DPARAMETERS_IGNORE_PCLR_CMAP_CDEF_FLAG 0x0001
355  
356 /**
357 Decompression parameters
358 */
359 typedef struct opj_dparameters {
360 /**
361 Set the number of highest resolution levels to be discarded.
362 The image resolution is effectively divided by 2 to the power of the number of discarded levels.
363 The reduce factor is limited by the smallest total number of decomposition levels among tiles.
364 if != 0, then original dimension divided by 2^(reduce);
365 if == 0 or not used, image is decoded to the full resolution
366 */
367 int cp_reduce;
368 /**
369 Set the maximum number of quality layers to decode.
370 If there are less quality layers than the specified number, all the quality layers are decoded.
371 if != 0, then only the first "layer" layers are decoded;
372 if == 0 or not used, all the quality layers are decoded
373 */
374 int cp_layer;
375  
376 /**@name command line encoder parameters (not used inside the library) */
377 /*@{*/
378 /** input file name */
379 char infile[OPJ_PATH_LEN];
380 /** output file name */
381 char outfile[OPJ_PATH_LEN];
382 /** input file format 0: J2K, 1: JP2, 2: JPT */
383 int decod_format;
384 /** output file format 0: PGX, 1: PxM, 2: BMP */
385 int cod_format;
386 /*@}*/
387  
388 /* UniPG>> */
389 /**@name JPWL decoding parameters */
390 /*@{*/
391 /** activates the JPWL correction capabilities */
392 opj_bool jpwl_correct;
393 /** expected number of components */
394 int jpwl_exp_comps;
395 /** maximum number of tiles */
396 int jpwl_max_tiles;
397 /*@}*/
398 /* <<UniPG */
399  
400 /**
401 Specify whether the decoding should be done on the entire codestream, or be limited to the main header
402 Limiting the decoding to the main header makes it possible to extract the characteristics of the codestream
403 if == NO_LIMITATION, the entire codestream is decoded;
404 if == LIMIT_TO_MAIN_HEADER, only the main header is decoded;
405 */
406 OPJ_LIMIT_DECODING cp_limit_decoding;
407  
408 unsigned int flags;
409 } opj_dparameters_t;
410  
411 /** Common fields between JPEG-2000 compression and decompression master structs. */
412  
413 #define opj_common_fields \
414 opj_event_mgr_t *event_mgr; /**< pointer to the event manager */\
415 void * client_data; /**< Available for use by application */\
416 opj_bool is_decompressor; /**< So common code can tell which is which */\
417 OPJ_CODEC_FORMAT codec_format; /**< selected codec */\
418 void *j2k_handle; /**< pointer to the J2K codec */\
419 void *jp2_handle; /**< pointer to the JP2 codec */\
420 void *mj2_handle /**< pointer to the MJ2 codec */
421  
422 /* Routines that are to be used by both halves of the library are declared
423 * to receive a pointer to this structure. There are no actual instances of
424 * opj_common_struct_t, only of opj_cinfo_t and opj_dinfo_t.
425 */
426 typedef struct opj_common_struct {
427 opj_common_fields; /* Fields common to both master struct types */
428 /* Additional fields follow in an actual opj_cinfo_t or
429 * opj_dinfo_t. All three structs must agree on these
430 * initial fields! (This would be a lot cleaner in C++.)
431 */
432 } opj_common_struct_t;
433  
434 typedef opj_common_struct_t * opj_common_ptr;
435  
436 /**
437 Compression context info
438 */
439 typedef struct opj_cinfo {
440 /** Fields shared with opj_dinfo_t */
441 opj_common_fields;
442 /* other specific fields go here */
443 } opj_cinfo_t;
444  
445 /**
446 Decompression context info
447 */
448 typedef struct opj_dinfo {
449 /** Fields shared with opj_cinfo_t */
450 opj_common_fields;
451 /* other specific fields go here */
452 } opj_dinfo_t;
453  
454 /*
455 ==========================================================
456 I/O stream typedef definitions
457 ==========================================================
458 */
459  
460 /*
461 * Stream open flags.
462 */
463 /** The stream was opened for reading. */
464 #define OPJ_STREAM_READ 0x0001
465 /** The stream was opened for writing. */
466 #define OPJ_STREAM_WRITE 0x0002
467  
468 /**
469 Byte input-output stream (CIO)
470 */
471 typedef struct opj_cio {
472 /** codec context */
473 opj_common_ptr cinfo;
474  
475 /** open mode (read/write) either OPJ_STREAM_READ or OPJ_STREAM_WRITE */
476 int openmode;
477 /** pointer to the start of the buffer */
478 unsigned char *buffer;
479 /** buffer size in bytes */
480 int length;
481  
482 /** pointer to the start of the stream */
483 unsigned char *start;
484 /** pointer to the end of the stream */
485 unsigned char *end;
486 /** pointer to the current position */
487 unsigned char *bp;
488 } opj_cio_t;
489  
490 /*
491 ==========================================================
492 image typedef definitions
493 ==========================================================
494 */
495  
496 /**
497 Defines a single image component
498 */
499 typedef struct opj_image_comp {
500 /** XRsiz: horizontal separation of a sample of ith component with respect to the reference grid */
501 int dx;
502 /** YRsiz: vertical separation of a sample of ith component with respect to the reference grid */
503 int dy;
504 /** data width */
505 int w;
506 /** data height */
507 int h;
508 /** x component offset compared to the whole image */
509 int x0;
510 /** y component offset compared to the whole image */
511 int y0;
512 /** precision */
513 int prec;
514 /** image depth in bits */
515 int bpp;
516 /** signed (1) / unsigned (0) */
517 int sgnd;
518 /** number of decoded resolution */
519 int resno_decoded;
520 /** number of division by 2 of the out image compared to the original size of image */
521 int factor;
522 /** image component data */
523 int *data;
524 } opj_image_comp_t;
525  
526 /**
527 Defines image data and characteristics
528 */
529 typedef struct opj_image {
530 /** XOsiz: horizontal offset from the origin of the reference grid to the left side of the image area */
531 int x0;
532 /** YOsiz: vertical offset from the origin of the reference grid to the top side of the image area */
533 int y0;
534 /** Xsiz: width of the reference grid */
535 int x1;
536 /** Ysiz: height of the reference grid */
537 int y1;
538 /** number of components in the image */
539 int numcomps;
540 /** color space: sRGB, Greyscale or YUV */
541 OPJ_COLOR_SPACE color_space;
542 /** image components */
543 opj_image_comp_t *comps;
544 /** 'restricted' ICC profile */
545 unsigned char *icc_profile_buf;
546 /** size of ICC profile */
547 int icc_profile_len;
548 } opj_image_t;
549  
550 /**
551 Component parameters structure used by the opj_image_create function
552 */
553 typedef struct opj_image_comptparm {
554 /** XRsiz: horizontal separation of a sample of ith component with respect to the reference grid */
555 int dx;
556 /** YRsiz: vertical separation of a sample of ith component with respect to the reference grid */
557 int dy;
558 /** data width */
559 int w;
560 /** data height */
561 int h;
562 /** x component offset compared to the whole image */
563 int x0;
564 /** y component offset compared to the whole image */
565 int y0;
566 /** precision */
567 int prec;
568 /** image depth in bits */
569 int bpp;
570 /** signed (1) / unsigned (0) */
571 int sgnd;
572 } opj_image_cmptparm_t;
573  
574 /*
575 ==========================================================
576 Information on the JPEG 2000 codestream
577 ==========================================================
578 */
579  
580 /**
581 Index structure : Information concerning a packet inside tile
582 */
583 typedef struct opj_packet_info {
584 /** packet start position (including SOP marker if it exists) */
585 int start_pos;
586 /** end of packet header position (including EPH marker if it exists)*/
587 int end_ph_pos;
588 /** packet end position */
589 int end_pos;
590 /** packet distorsion */
591 double disto;
592 } opj_packet_info_t;
593  
594  
595 /* UniPG>> */
596 /**
597 Marker structure
598 */
599 typedef struct opj_marker_info_t {
600 /** marker type */
601 unsigned short int type;
602 /** position in codestream */
603 int pos;
604 /** length, marker val included */
605 int len;
606 } opj_marker_info_t;
607 /* <<UniPG */
608  
609 /**
610 Index structure : Information concerning tile-parts
611 */
612 typedef struct opj_tp_info {
613 /** start position of tile part */
614 int tp_start_pos;
615 /** end position of tile part header */
616 int tp_end_header;
617 /** end position of tile part */
618 int tp_end_pos;
619 /** start packet of tile part */
620 int tp_start_pack;
621 /** number of packets of tile part */
622 int tp_numpacks;
623 } opj_tp_info_t;
624  
625 /**
626 Index structure : information regarding tiles
627 */
628 typedef struct opj_tile_info {
629 /** value of thresh for each layer by tile cfr. Marcela */
630 double *thresh;
631 /** number of tile */
632 int tileno;
633 /** start position */
634 int start_pos;
635 /** end position of the header */
636 int end_header;
637 /** end position */
638 int end_pos;
639 /** precinct number for each resolution level (width) */
640 int pw[33];
641 /** precinct number for each resolution level (height) */
642 int ph[33];
643 /** precinct size (in power of 2), in X for each resolution level */
644 int pdx[33];
645 /** precinct size (in power of 2), in Y for each resolution level */
646 int pdy[33];
647 /** information concerning packets inside tile */
648 opj_packet_info_t *packet;
649 /** add fixed_quality */
650 int numpix;
651 /** add fixed_quality */
652 double distotile;
653 /** number of markers */
654 int marknum;
655 /** list of markers */
656 opj_marker_info_t *marker;
657 /** actual size of markers array */
658 int maxmarknum;
659 /** number of tile parts */
660 int num_tps;
661 /** information concerning tile parts */
662 opj_tp_info_t *tp;
663 } opj_tile_info_t;
664  
665 /**
666 Index structure of the codestream
667 */
668 typedef struct opj_codestream_info {
669 /** maximum distortion reduction on the whole image (add for Marcela) */
670 double D_max;
671 /** packet number */
672 int packno;
673 /** writing the packet in the index with t2_encode_packets */
674 int index_write;
675 /** image width */
676 int image_w;
677 /** image height */
678 int image_h;
679 /** progression order */
680 OPJ_PROG_ORDER prog;
681 /** tile size in x */
682 int tile_x;
683 /** tile size in y */
684 int tile_y;
685 /** */
686 int tile_Ox;
687 /** */
688 int tile_Oy;
689 /** number of tiles in X */
690 int tw;
691 /** number of tiles in Y */
692 int th;
693 /** component numbers */
694 int numcomps;
695 /** number of layer */
696 int numlayers;
697 /** number of decomposition for each component */
698 int *numdecompos;
699 /* UniPG>> */
700 /** number of markers */
701 int marknum;
702 /** list of markers */
703 opj_marker_info_t *marker;
704 /** actual size of markers array */
705 int maxmarknum;
706 /* <<UniPG */
707 /** main header position */
708 int main_head_start;
709 /** main header position */
710 int main_head_end;
711 /** codestream's size */
712 int codestream_size;
713 /** information regarding tiles inside image */
714 opj_tile_info_t *tile;
715 } opj_codestream_info_t;
716  
717 #ifdef __cplusplus
718 extern "C" {
719 #endif
720  
721  
722 /*
723 ==========================================================
724 openjpeg version
725 ==========================================================
726 */
727  
728 OPJ_API const char * OPJ_CALLCONV opj_version(void);
729  
730 /*
731 ==========================================================
732 image functions definitions
733 ==========================================================
734 */
735  
736 /**
737 Create an image
738 @param numcmpts number of components
739 @param cmptparms components parameters
740 @param clrspc image color space
741 @return returns a new image structure if successful, returns NULL otherwise
742 */
743 OPJ_API opj_image_t* OPJ_CALLCONV opj_image_create(int numcmpts, opj_image_cmptparm_t *cmptparms, OPJ_COLOR_SPACE clrspc);
744  
745 /**
746 Deallocate any resources associated with an image
747 @param image image to be destroyed
748 */
749 OPJ_API void OPJ_CALLCONV opj_image_destroy(opj_image_t *image);
750  
751 /*
752 ==========================================================
753 stream functions definitions
754 ==========================================================
755 */
756  
757 /**
758 Open and allocate a memory stream for read / write.
759 On reading, the user must provide a buffer containing encoded data. The buffer will be
760 wrapped by the returned CIO handle.
761 On writing, buffer parameters must be set to 0: a buffer will be allocated by the library
762 to contain encoded data.
763 @param cinfo Codec context info
764 @param buffer Reading: buffer address. Writing: NULL
765 @param length Reading: buffer length. Writing: 0
766 @return Returns a CIO handle if successful, returns NULL otherwise
767 */
768 OPJ_API opj_cio_t* OPJ_CALLCONV opj_cio_open(opj_common_ptr cinfo, unsigned char *buffer, int length);
769  
770 /**
771 Close and free a CIO handle
772 @param cio CIO handle to free
773 */
774 OPJ_API void OPJ_CALLCONV opj_cio_close(opj_cio_t *cio);
775  
776 /**
777 Get position in byte stream
778 @param cio CIO handle
779 @return Returns the position in bytes
780 */
781 OPJ_API int OPJ_CALLCONV cio_tell(opj_cio_t *cio);
782 /**
783 Set position in byte stream
784 @param cio CIO handle
785 @param pos Position, in number of bytes, from the beginning of the stream
786 */
787 OPJ_API void OPJ_CALLCONV cio_seek(opj_cio_t *cio, int pos);
788  
789 /*
790 ==========================================================
791 event manager functions definitions
792 ==========================================================
793 */
794  
795 OPJ_API opj_event_mgr_t* OPJ_CALLCONV opj_set_event_mgr(opj_common_ptr cinfo, opj_event_mgr_t *event_mgr, void *context);
796  
797 /*
798 ==========================================================
799 codec functions definitions
800 ==========================================================
801 */
802 /**
803 Creates a J2K/JPT/JP2 decompression structure
804 @param format Decoder to select
805 @return Returns a handle to a decompressor if successful, returns NULL otherwise
806 */
807 OPJ_API opj_dinfo_t* OPJ_CALLCONV opj_create_decompress(OPJ_CODEC_FORMAT format);
808 /**
809 Destroy a decompressor handle
810 @param dinfo decompressor handle to destroy
811 */
812 OPJ_API void OPJ_CALLCONV opj_destroy_decompress(opj_dinfo_t *dinfo);
813 /**
814 Set decoding parameters to default values
815 @param parameters Decompression parameters
816 */
817 OPJ_API void OPJ_CALLCONV opj_set_default_decoder_parameters(opj_dparameters_t *parameters);
818 /**
819 Setup the decoder decoding parameters using user parameters.
820 Decoding parameters are returned in j2k->cp.
821 @param dinfo decompressor handle
822 @param parameters decompression parameters
823 */
824 OPJ_API void OPJ_CALLCONV opj_setup_decoder(opj_dinfo_t *dinfo, opj_dparameters_t *parameters);
825 /**
826 Decode an image from a JPEG-2000 codestream
827 @param dinfo decompressor handle
828 @param cio Input buffer stream
829 @return Returns a decoded image if successful, returns NULL otherwise
830 */
831 OPJ_API opj_image_t* OPJ_CALLCONV opj_decode(opj_dinfo_t *dinfo, opj_cio_t *cio);
832  
833 /**
834 Decode an image from a JPEG-2000 codestream and extract the codestream information
835 @param dinfo decompressor handle
836 @param cio Input buffer stream
837 @param cstr_info Codestream information structure if needed afterwards, NULL otherwise
838 @return Returns a decoded image if successful, returns NULL otherwise
839 */
840 OPJ_API opj_image_t* OPJ_CALLCONV opj_decode_with_info(opj_dinfo_t *dinfo, opj_cio_t *cio, opj_codestream_info_t *cstr_info);
841 /**
842 Creates a J2K/JP2 compression structure
843 @param format Coder to select
844 @return Returns a handle to a compressor if successful, returns NULL otherwise
845 */
846 OPJ_API opj_cinfo_t* OPJ_CALLCONV opj_create_compress(OPJ_CODEC_FORMAT format);
847 /**
848 Destroy a compressor handle
849 @param cinfo compressor handle to destroy
850 */
851 OPJ_API void OPJ_CALLCONV opj_destroy_compress(opj_cinfo_t *cinfo);
852 /**
853 Set encoding parameters to default values, that means :
854 <ul>
855 <li>Lossless
856 <li>1 tile
857 <li>Size of precinct : 2^15 x 2^15 (means 1 precinct)
858 <li>Size of code-block : 64 x 64
859 <li>Number of resolutions: 6
860 <li>No SOP marker in the codestream
861 <li>No EPH marker in the codestream
862 <li>No sub-sampling in x or y direction
863 <li>No mode switch activated
864 <li>Progression order: LRCP
865 <li>No index file
866 <li>No ROI upshifted
867 <li>No offset of the origin of the image
868 <li>No offset of the origin of the tiles
869 <li>Reversible DWT 5-3
870 </ul>
871 @param parameters Compression parameters
872 */
873 OPJ_API void OPJ_CALLCONV opj_set_default_encoder_parameters(opj_cparameters_t *parameters);
874 /**
875 Setup the encoder parameters using the current image and using user parameters.
876 @param cinfo Compressor handle
877 @param parameters Compression parameters
878 @param image Input filled image
879 */
880 OPJ_API void OPJ_CALLCONV opj_setup_encoder(opj_cinfo_t *cinfo, opj_cparameters_t *parameters, opj_image_t *image);
881 /**
882 Encode an image into a JPEG-2000 codestream
883 3@param cinfo compressor handle
884 @param cio Output buffer stream
885 @param image Image to encode
886 @param index Depreacted -> Set to NULL. To extract index, used opj_encode_wci()
887 @return Returns true if successful, returns false otherwise
888 */
889 OPJ_API opj_bool OPJ_CALLCONV opj_encode(opj_cinfo_t *cinfo, opj_cio_t *cio, opj_image_t *image, char *index);
890 /**
891 Encode an image into a JPEG-2000 codestream and extract the codestream information
892 @param cinfo compressor handle
893 @param cio Output buffer stream
894 @param image Image to encode
895 @param cstr_info Codestream information structure if needed afterwards, NULL otherwise
896 @return Returns true if successful, returns false otherwise
897 */
898 OPJ_API opj_bool OPJ_CALLCONV opj_encode_with_info(opj_cinfo_t *cinfo, opj_cio_t *cio, opj_image_t *image, opj_codestream_info_t *cstr_info);
899 /**
900 Destroy Codestream information after compression or decompression
901 @param cstr_info Codestream information structure
902 */
903 OPJ_API void OPJ_CALLCONV opj_destroy_cstr_info(opj_codestream_info_t *cstr_info);
904  
905  
906 #ifdef __cplusplus
907 }
908 #endif
909  
910 #endif /* OPENJPEG_H */