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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 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32#ifndef __J2K_H
33#define __J2K_H
34/**
35@file j2k.h
36@brief The JPEG-2000 Codestream Reader/Writer (J2K)
37
38The functions in J2K.C have for goal to read/write the several parts of the codestream: markers and data.
39*/
40
41/** @defgroup J2K J2K - JPEG-2000 codestream reader/writer */
42/*@{*/
43
44#define J2K_CP_CSTY_PRT 0x01
45#define J2K_CP_CSTY_SOP 0x02
46#define J2K_CP_CSTY_EPH 0x04
47#define J2K_CCP_CSTY_PRT 0x01
48#define J2K_CCP_CBLKSTY_LAZY 0x01
49#define J2K_CCP_CBLKSTY_RESET 0x02
50#define J2K_CCP_CBLKSTY_TERMALL 0x04
51#define J2K_CCP_CBLKSTY_VSC 0x08
52#define J2K_CCP_CBLKSTY_PTERM 0x10
53#define J2K_CCP_CBLKSTY_SEGSYM 0x20
54#define J2K_CCP_QNTSTY_NOQNT 0
55#define J2K_CCP_QNTSTY_SIQNT 1
56#define J2K_CCP_QNTSTY_SEQNT 2
57
58/* ----------------------------------------------------------------------- */
59
60#define J2K_MS_SOC 0xff4f /**< SOC marker value */
61#define J2K_MS_SOT 0xff90 /**< SOT marker value */
62#define J2K_MS_SOD 0xff93 /**< SOD marker value */
63#define J2K_MS_EOC 0xffd9 /**< EOC marker value */
64#define J2K_MS_SIZ 0xff51 /**< SIZ marker value */
65#define J2K_MS_COD 0xff52 /**< COD marker value */
66#define J2K_MS_COC 0xff53 /**< COC marker value */
67#define J2K_MS_RGN 0xff5e /**< RGN marker value */
68#define J2K_MS_QCD 0xff5c /**< QCD marker value */
69#define J2K_MS_QCC 0xff5d /**< QCC marker value */
70#define J2K_MS_POC 0xff5f /**< POC marker value */
71#define J2K_MS_TLM 0xff55 /**< TLM marker value */
72#define J2K_MS_PLM 0xff57 /**< PLM marker value */
73#define J2K_MS_PLT 0xff58 /**< PLT marker value */
74#define J2K_MS_PPM 0xff60 /**< PPM marker value */
75#define J2K_MS_PPT 0xff61 /**< PPT marker value */
76#define J2K_MS_SOP 0xff91 /**< SOP marker value */
77#define J2K_MS_EPH 0xff92 /**< EPH marker value */
78#define J2K_MS_CRG 0xff63 /**< CRG marker value */
79#define J2K_MS_COM 0xff64 /**< COM marker value */
80/* UniPG>> */
81#ifdef USE_JPWL
82#define J2K_MS_EPC 0xff68 /**< EPC marker value (Part11) */
83#define J2K_MS_EPB 0xff66 /**< EPB marker value (Part11) */
84#define J2K_MS_ESD 0xff67 /**< ESD marker value (Part11) */
85#define J2K_MS_RED 0xff69 /**< RED marker value (Part11) */
86#endif /* USE_JPWL */
87/* <<UniPG */
88
89/* ----------------------------------------------------------------------- */
90
91/**
92Values that specify the status of the decoding process when decoding the main header.
93These values may be combined with a | operator.
94*/
95typedef enum J2K_STATUS {
96 J2K_STATE_MHSOC = 0x0001, /**< a SOC marker is expected */
97 J2K_STATE_MHSIZ = 0x0002, /**< a SIZ marker is expected */
98 J2K_STATE_MH = 0x0004, /**< the decoding process is in the main header */
99 J2K_STATE_TPHSOT = 0x0008, /**< the decoding process is in a tile part header and expects a SOT marker */
100 J2K_STATE_TPH = 0x0010, /**< the decoding process is in a tile part header */
101 J2K_STATE_MT = 0x0020, /**< the EOC marker has just been read */
102 J2K_STATE_NEOC = 0x0040 /**< the decoding process must not expect a EOC marker because the codestream is truncated */
103} J2K_STATUS;
104
105/* ----------------------------------------------------------------------- */
106
107/**
108T2 encoding mode
109*/
110typedef enum T2_MODE {
111 THRESH_CALC = 0, /** Function called in Rate allocation process*/
112 FINAL_PASS = 1 /** Function called in Tier 2 process*/
113}J2K_T2_MODE;
114
115/**
116Quantization stepsize
117*/
118typedef struct opj_stepsize {
119 /** exponent */
120 int expn;
121 /** mantissa */
122 int mant;
123} opj_stepsize_t;
124
125/**
126Tile-component coding parameters
127*/
128typedef struct opj_tccp {
129 /** coding style */
130 int csty;
131 /** number of resolutions */
132 int numresolutions;
133 /** code-blocks width */
134 int cblkw;
135 /** code-blocks height */
136 int cblkh;
137 /** code-block coding style */
138 int cblksty;
139 /** discrete wavelet transform identifier */
140 int qmfbid;
141 /** quantisation style */
142 int qntsty;
143 /** stepsizes used for quantization */
144 opj_stepsize_t stepsizes[J2K_MAXBANDS];
145 /** number of guard bits */
146 int numgbits;
147 /** Region Of Interest shift */
148 int roishift;
149 /** precinct width */
150 int prcw[J2K_MAXRLVLS];
151 /** precinct height */
152 int prch[J2K_MAXRLVLS];
153} opj_tccp_t;
154
155/**
156Tile coding parameters :
157this structure is used to store coding/decoding parameters common to all
158tiles (information like COD, COC in main header)
159*/
160typedef struct opj_tcp {
161 /** 1 : first part-tile of a tile */
162 int first;
163 /** coding style */
164 int csty;
165 /** progression order */
166 OPJ_PROG_ORDER prg;
167 /** number of layers */
168 int numlayers;
169 /** multi-component transform identifier */
170 int mct;
171 /** rates of layers */
172 float rates[100];
173 /** number of progression order changes */
174 int numpocs;
175 /** indicates if a POC marker has been used O:NO, 1:YES */
176 int POC;
177 /** progression order changes */
178 opj_poc_t pocs[32];
179 /** packet header store there for futur use in t2_decode_packet */
180 unsigned char *ppt_data;
181 /** pointer remaining on the first byte of the first header if ppt is used */
182 unsigned char *ppt_data_first;
183 /** If ppt == 1 --> there was a PPT marker for the present tile */
184 int ppt;
185 /** used in case of multiple marker PPT (number of info already stored) */
186 int ppt_store;
187 /** ppmbug1 */
188 int ppt_len;
189 /** add fixed_quality */
190 float distoratio[100];
191 /** tile-component coding parameters */
192 opj_tccp_t *tccps;
193} opj_tcp_t;
194
195/**
196Coding parameters
197*/
198typedef struct opj_cp {
199 /** Digital cinema profile*/
200 OPJ_CINEMA_MODE cinema;
201 /** Maximum rate for each component. If == 0, component size limitation is not considered */
202 int max_comp_size;
203 /** Size of the image in bits*/
204 int img_size;
205 /** Rsiz*/
206 OPJ_RSIZ_CAPABILITIES rsiz;
207 /** Enabling Tile part generation*/
208 char tp_on;
209 /** Flag determining tile part generation*/
210 char tp_flag;
211 /** Position of tile part flag in progression order*/
212 int tp_pos;
213 /** allocation by rate/distortion */
214 int disto_alloc;
215 /** allocation by fixed layer */
216 int fixed_alloc;
217 /** add fixed_quality */
218 int fixed_quality;
219 /** if != 0, then original dimension divided by 2^(reduce); if == 0 or not used, image is decoded to the full resolution */
220 int reduce;
221 /** if != 0, then only the first "layer" layers are decoded; if == 0 or not used, all the quality layers are decoded */
222 int layer;
223 /** if == NO_LIMITATION, decode entire codestream; if == LIMIT_TO_MAIN_HEADER then only decode the main header */
224 OPJ_LIMIT_DECODING limit_decoding;
225 /** 0 = no index || 1 = index */
226 int index_on;
227 /** XTOsiz */
228 int tx0;
229 /** YTOsiz */
230 int ty0;
231 /** XTsiz */
232 int tdx;
233 /** YTsiz */
234 int tdy;
235 /** comment for coding */
236 char *comment;
237 /** number of tiles in width */
238 int tw;
239 /** number of tiles in heigth */
240 int th;
241 /** ID number of the tiles present in the codestream */
242 int *tileno;
243 /** size of the vector tileno */
244 int tileno_size;
245 /** packet header store there for futur use in t2_decode_packet */
246 unsigned char *ppm_data;
247 /** pointer remaining on the first byte of the first header if ppm is used */
248 unsigned char *ppm_data_first;
249 /** if ppm == 1 --> there was a PPM marker for the present tile */
250 int ppm;
251 /** use in case of multiple marker PPM (number of info already store) */
252 int ppm_store;
253 /** use in case of multiple marker PPM (case on non-finished previous info) */
254 int ppm_previous;
255 /** ppmbug1 */
256 int ppm_len;
257 /** tile coding parameters */
258 opj_tcp_t *tcps;
259 /** fixed layer */
260 int *matrice;
261/* UniPG>> */
262#ifdef USE_JPWL
263 /** enables writing of EPC in MH, thus activating JPWL */
264 bool epc_on;
265 /** enables writing of EPB, in case of activated JPWL */
266 bool epb_on;
267 /** enables writing of ESD, in case of activated JPWL */
268 bool esd_on;
269 /** enables writing of informative techniques of ESD, in case of activated JPWL */
270 bool info_on;
271 /** enables writing of RED, in case of activated JPWL */
272 bool red_on;
273 /** error protection method for MH (0,1,16,32,37-128) */
274 int hprot_MH;
275 /** tile number of header protection specification (>=0) */
276 int hprot_TPH_tileno[JPWL_MAX_NO_TILESPECS];
277 /** error protection methods for TPHs (0,1,16,32,37-128) */
278 int hprot_TPH[JPWL_MAX_NO_TILESPECS];
279 /** tile number of packet protection specification (>=0) */
280 int pprot_tileno[JPWL_MAX_NO_PACKSPECS];
281 /** packet number of packet protection specification (>=0) */
282 int pprot_packno[JPWL_MAX_NO_PACKSPECS];
283 /** error protection methods for packets (0,1,16,32,37-128) */
284 int pprot[JPWL_MAX_NO_PACKSPECS];
285 /** enables writing of ESD, (0/2/4 bytes) */
286 int sens_size;
287 /** sensitivity addressing size (0=auto/2/4 bytes) */
288 int sens_addr;
289 /** sensitivity range (0-3) */
290 int sens_range;
291 /** sensitivity method for MH (-1,0-7) */
292 int sens_MH;
293 /** tile number of sensitivity specification (>=0) */
294 int sens_TPH_tileno[JPWL_MAX_NO_TILESPECS];
295 /** sensitivity methods for TPHs (-1,0-7) */
296 int sens_TPH[JPWL_MAX_NO_TILESPECS];
297 /** enables JPWL correction at the decoder */
298 bool correct;
299 /** expected number of components at the decoder */
300 int exp_comps;
301 /** maximum number of tiles at the decoder */
302 int max_tiles;
303#endif /* USE_JPWL */
304/* <<UniPG */
305} opj_cp_t;
306
307/**
308Information concerning a packet inside tile
309*/
310typedef struct opj_packet_info {
311 /** start position */
312 int start_pos;
313 /** end position */
314 int end_pos;
315 /** ADD for Marcela */
316 double disto;
317} opj_packet_info_t;
318
319/**
320Index structure : information regarding tiles inside image
321*/
322typedef struct opj_tile_info {
323 /** value of thresh for each layer by tile cfr. Marcela */
324 double *thresh;
325 /** number of tile */
326 int num_tile;
327 /** start position */
328 int start_pos;
329 /** end position of the header */
330 int end_header;
331 /** end position */
332 int end_pos;
333 /** precinct number for each resolution level (width) */
334 int pw[33];
335 /** precinct number for each resolution level (height) */
336 int ph[33];
337 /** precinct size (in power of 2), in X for each resolution level */
338 int pdx[33];
339 /** precinct size (in power of 2), in Y for each resolution level */
340 int pdy[33];
341 /** information concerning packets inside tile */
342 opj_packet_info_t *packet;
343 /** add fixed_quality */
344 int nbpix;
345 /** add fixed_quality */
346 double distotile;
347} opj_tile_info_t;
348
349/**
350Index structure
351*/
352typedef struct opj_image_info {
353 /** 0 = no index || 1 = index */
354 int index_on;
355 /** maximum distortion reduction on the whole image (add for Marcela) */
356 double D_max;
357 /** packet number */
358 int num;
359 /** writing the packet in the index with t2_encode_packets */
360 int index_write;
361 /** image width */
362 int image_w;
363 /** image height */
364 int image_h;
365 /** progression order */
366 OPJ_PROG_ORDER prog;
367 /** tile size in x */
368 int tile_x;
369 /** tile size in y */
370 int tile_y;
371 /** */
372 int tile_Ox;
373 /** */
374 int tile_Oy;
375 /** number of tiles in X */
376 int tw;
377 /** number of tiles in Y */
378 int th;
379 /** component numbers */
380 int comp;
381 /** number of layer */
382 int layer;
383 /** number of decomposition */
384 int decomposition;
385 /** main header position */
386 int main_head_end;
387 /** codestream's size */
388 int codestream_size;
389 /** information regarding tiles inside image */
390 opj_tile_info_t *tile;
391} opj_image_info_t;
392
393/**
394JPEG-2000 codestream reader/writer
395*/
396typedef struct opj_j2k {
397 /** codec context */
398 opj_common_ptr cinfo;
399
400 /** locate in which part of the codestream the decoder is (main header, tile header, end) */
401 int state;
402 /** number of the tile curently concern by coding/decoding */
403 int curtileno;
404 /** Tile part number*/
405 int tp_num;
406 /** Tilepart number currently coding*/
407 int cur_tp_num;
408 /** Total number of tileparts of the current tile*/
409 int *cur_totnum_tp;
410 /**
411 locate the start position of the TLM marker
412 after encoding the tilepart, a jump (in j2k_write_sod) is done to the TLM marker to store the value of its length.
413 */
414 int tlm_start;
415 /** Total num of tile parts in whole image = num tiles* num tileparts in each tile*/
416 /** used in TLMmarker*/
417 int totnum_tp;
418 /**
419 locate the position of the end of the tile in the codestream,
420 used to detect a truncated codestream (in j2k_read_sod)
421 */
422 unsigned char *eot;
423 /**
424 locate the start position of the SOT marker of the current coded tile:
425 after encoding the tile, a jump (in j2k_write_sod) is done to the SOT marker to store the value of its length.
426 */
427 int sot_start;
428 int sod_start;
429 /**
430 as the J2K-file is written in several parts during encoding,
431 it enables to make the right correction in position return by cio_tell
432 */
433 int pos_correction;
434 /** array used to store the data of each tile */
435 unsigned char **tile_data;
436 /** array used to store the length of each tile */
437 int *tile_len;
438 /**
439 decompression only :
440 store decoding parameters common to all tiles (information like COD, COC in main header)
441 */
442 opj_tcp_t *default_tcp;
443 /** pointer to the encoded / decoded image */
444 opj_image_t *image;
445 /** pointer to the coding parameters */
446 opj_cp_t *cp;
447 /** helper used to write the index file */
448 opj_image_info_t *image_info;
449 /** pointer to the byte i/o stream */
450 opj_cio_t *cio;
451} opj_j2k_t;
452
453/** @name Exported functions */
454/*@{*/
455/* ----------------------------------------------------------------------- */
456/**
457Creates a J2K decompression structure
458@param cinfo Codec context info
459@return Returns a handle to a J2K decompressor if successful, returns NULL otherwise
460*/
461opj_j2k_t* j2k_create_decompress(opj_common_ptr cinfo);
462/**
463Destroy a J2K decompressor handle
464@param j2k J2K decompressor handle to destroy
465*/
466void j2k_destroy_decompress(opj_j2k_t *j2k);
467/**
468Setup the decoder decoding parameters using user parameters.
469Decoding parameters are returned in j2k->cp.
470@param j2k J2K decompressor handle
471@param parameters decompression parameters
472*/
473void j2k_setup_decoder(opj_j2k_t *j2k, opj_dparameters_t *parameters);
474/**
475Decode an image from a JPEG-2000 codestream
476@param j2k J2K decompressor handle
477@param cio Input buffer stream
478@return Returns a decoded image if successful, returns NULL otherwise
479*/
480opj_image_t* j2k_decode(opj_j2k_t *j2k, opj_cio_t *cio);
481/**
482Decode an image form a JPT-stream (JPEG 2000, JPIP)
483@param j2k J2K decompressor handle
484@param cio Input buffer stream
485@return Returns a decoded image if successful, returns NULL otherwise
486*/
487opj_image_t* j2k_decode_jpt_stream(opj_j2k_t *j2k, opj_cio_t *cio);
488/**
489Creates a J2K compression structure
490@param cinfo Codec context info
491@return Returns a handle to a J2K compressor if successful, returns NULL otherwise
492*/
493opj_j2k_t* j2k_create_compress(opj_common_ptr cinfo);
494/**
495Destroy a J2K compressor handle
496@param j2k J2K compressor handle to destroy
497*/
498void j2k_destroy_compress(opj_j2k_t *j2k);
499/**
500Setup the encoder parameters using the current image and using user parameters.
501Coding parameters are returned in j2k->cp.
502@param j2k J2K compressor handle
503@param parameters compression parameters
504@param image input filled image
505*/
506void j2k_setup_encoder(opj_j2k_t *j2k, opj_cparameters_t *parameters, opj_image_t *image);
507/**
508Converts an enum type progression order to string type
509*/
510char *j2k_convert_progression_order(OPJ_PROG_ORDER prg_order);
511/**
512Encode an image into a JPEG-2000 codestream
513@param j2k J2K compressor handle
514@param cio Output buffer stream
515@param image Image to encode
516@param index Name of the index file if required, NULL otherwise
517@return Returns true if successful, returns false otherwise
518*/
519bool j2k_encode(opj_j2k_t *j2k, opj_cio_t *cio, opj_image_t *image, char *index);
520/* ----------------------------------------------------------------------- */
521/*@}*/
522
523/*@}*/
524
525#endif /* __J2K_H */
generated by cgit v1.1 at 2024-11-02 05:49:26 +0000