1 /*
2 * The copyright in this software is being made available under the 2-clauses
3 * BSD License, included below. This software may be subject to other third
4 * party and contributor rights, including patent rights, and no such rights
5 * are granted under this license.
6 *
7 * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
8 * Copyright (c) 2002-2014, Professor Benoit Macq
9 * Copyright (c) 2001-2003, David Janssens
10 * Copyright (c) 2002-2003, Yannick Verschueren
11 * Copyright (c) 2003-2007, Francois-Olivier Devaux
12 * Copyright (c) 2003-2014, Antonin Descampe
13 * Copyright (c) 2005, Herve Drolon, FreeImage Team
14 * Copyright (c) 2010-2011, Kaori Hagihara
15 * Copyright (c) 2008, 2011-2012, Centre National d'Etudes Spatiales (CNES), FR
16 * Copyright (c) 2012, CS Systemes d'Information, France
17 * All rights reserved.
18 *
19 * Redistribution and use in source and binary forms, with or without
20 * modification, are permitted provided that the following conditions
21 * are met:
22 * 1. Redistributions of source code must retain the above copyright
23 * notice, this list of conditions and the following disclaimer.
24 * 2. Redistributions in binary form must reproduce the above copyright
25 * notice, this list of conditions and the following disclaimer in the
26 * documentation and/or other materials provided with the distribution.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
29 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
32 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
38 * POSSIBILITY OF SUCH DAMAGE.
39 */
40 #include "opj_includes.h"
41
42 /** @defgroup JP2 JP2 - JPEG-2000 file format reader/writer */
43 /*@{*/
44
45 #define OPJ_BOX_SIZE 1024
46
47 /** @name Local static functions */
48 /*@{*/
49
50 /*static void jp2_write_url(opj_cio_t *cio, char *Idx_file);*/
51
52 /**
53 * Reads a IHDR box - Image Header box
54 *
55 * @param p_image_header_data pointer to actual data (already read from file)
56 * @param jp2 the jpeg2000 file codec.
57 * @param p_image_header_size the size of the image header
58 * @param p_manager the user event manager.
59 *
60 * @return true if the image header is valid, false else.
61 */
62 static OPJ_BOOL opj_jp2_read_ihdr( opj_jp2_t *jp2,
63 OPJ_BYTE *p_image_header_data,
64 OPJ_UINT32 p_image_header_size,
65 opj_event_mgr_t * p_manager );
66
67 /**
68 * Writes the Image Header box - Image Header box.
69 *
70 * @param jp2 jpeg2000 file codec.
71 * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
72 *
73 * @return the data being copied.
74 */
75 static OPJ_BYTE * opj_jp2_write_ihdr(opj_jp2_t *jp2,
76 OPJ_UINT32 * p_nb_bytes_written );
77
78 /**
79 * Writes the Bit per Component box.
80 *
81 * @param jp2 jpeg2000 file codec.
82 * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
83 *
84 * @return the data being copied.
85 */
86 static OPJ_BYTE * opj_jp2_write_bpcc( opj_jp2_t *jp2,
87 OPJ_UINT32 * p_nb_bytes_written );
88
89 /**
90 * Reads a Bit per Component box.
91 *
92 * @param p_bpc_header_data pointer to actual data (already read from file)
93 * @param jp2 the jpeg2000 file codec.
94 * @param p_bpc_header_size the size of the bpc header
95 * @param p_manager the user event manager.
96 *
97 * @return true if the bpc header is valid, fale else.
98 */
99 static OPJ_BOOL opj_jp2_read_bpcc( opj_jp2_t *jp2,
100 OPJ_BYTE * p_bpc_header_data,
101 OPJ_UINT32 p_bpc_header_size,
102 opj_event_mgr_t * p_manager );
103
104 static OPJ_BOOL opj_jp2_read_cdef( opj_jp2_t * jp2,
105 OPJ_BYTE * p_cdef_header_data,
106 OPJ_UINT32 p_cdef_header_size,
107 opj_event_mgr_t * p_manager );
108
109 static void opj_jp2_apply_cdef(opj_image_t *image, opj_jp2_color_t *color);
110
111 /**
112 * Writes the Colour Specification box.
113 *
114 * @param jp2 jpeg2000 file codec.
115 * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
116 *
117 * @return the data being copied.
118 */
119 static OPJ_BYTE * opj_jp2_write_colr( opj_jp2_t *jp2,
120 OPJ_UINT32 * p_nb_bytes_written );
121
122 /**
123 * Writes a FTYP box - File type box
124 *
125 * @param cio the stream to write data to.
126 * @param jp2 the jpeg2000 file codec.
127 * @param p_manager the user event manager.
128 *
129 * @return true if writing was successful.
130 */
131 static OPJ_BOOL opj_jp2_write_ftyp( opj_jp2_t *jp2,
132 opj_stream_private_t *cio,
133 opj_event_mgr_t * p_manager );
134
135 /**
136 * Reads a a FTYP box - File type box
137 *
138 * @param p_header_data the data contained in the FTYP box.
139 * @param jp2 the jpeg2000 file codec.
140 * @param p_header_size the size of the data contained in the FTYP box.
141 * @param p_manager the user event manager.
142 *
143 * @return true if the FTYP box is valid.
144 */
145 static OPJ_BOOL opj_jp2_read_ftyp( opj_jp2_t *jp2,
146 OPJ_BYTE * p_header_data,
147 OPJ_UINT32 p_header_size,
148 opj_event_mgr_t * p_manager );
149
150 OPJ_BOOL opj_jp2_skip_jp2c( opj_jp2_t *jp2,
151 opj_stream_private_t *cio,
152 opj_event_mgr_t * p_manager );
153
154 /**
155 * Reads the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box).
156 *
157 * @param p_header_data the data contained in the file header box.
158 * @param jp2 the jpeg2000 file codec.
159 * @param p_header_size the size of the data contained in the file header box.
160 * @param p_manager the user event manager.
161 *
162 * @return true if the JP2 Header box was successfully reconized.
163 */
164 static OPJ_BOOL opj_jp2_read_jp2h( opj_jp2_t *jp2,
165 OPJ_BYTE *p_header_data,
166 OPJ_UINT32 p_header_size,
167 opj_event_mgr_t * p_manager );
168
169 /**
170 * Writes the Jpeg2000 codestream Header box - JP2C Header box. This function must be called AFTER the coding has been done.
171 *
172 * @param cio the stream to write data to.
173 * @param jp2 the jpeg2000 file codec.
174 * @param p_manager user event manager.
175 *
176 * @return true if writing was successful.
177 */
178 static OPJ_BOOL opj_jp2_write_jp2c( opj_jp2_t *jp2,
179 opj_stream_private_t *cio,
180 opj_event_mgr_t * p_manager );
181
182 #ifdef USE_JPIP
183 /**
184 * Write index Finder box
185 * @param cio the stream to write to.
186 * @param jp2 the jpeg2000 file codec.
187 * @param p_manager user event manager.
188 */
189 static OPJ_BOOL opj_jpip_write_iptr( opj_jp2_t *jp2,
190 opj_stream_private_t *cio,
191 opj_event_mgr_t * p_manager );
192
193 /**
194 * Write index Finder box
195 * @param cio the stream to write to.
196 * @param jp2 the jpeg2000 file codec.
197 * @param p_manager user event manager.
198 */
199 static OPJ_BOOL opj_jpip_write_cidx(opj_jp2_t *jp2,
200 opj_stream_private_t *cio,
201 opj_event_mgr_t * p_manager );
202
203 /**
204 * Write file Index (superbox)
205 * @param cio the stream to write to.
206 * @param jp2 the jpeg2000 file codec.
207 * @param p_manager user event manager.
208 */
209 static OPJ_BOOL opj_jpip_write_fidx(opj_jp2_t *jp2,
210 opj_stream_private_t *cio,
211 opj_event_mgr_t * p_manager );
212 #endif /* USE_JPIP */
213
214 /**
215 * Reads a jpeg2000 file signature box.
216 *
217 * @param p_header_data the data contained in the signature box.
218 * @param jp2 the jpeg2000 file codec.
219 * @param p_header_size the size of the data contained in the signature box.
220 * @param p_manager the user event manager.
221 *
222 * @return true if the file signature box is valid.
223 */
224 static OPJ_BOOL opj_jp2_read_jp(opj_jp2_t *jp2,
225 OPJ_BYTE * p_header_data,
226 OPJ_UINT32 p_header_size,
227 opj_event_mgr_t * p_manager);
228
229 /**
230 * Writes a jpeg2000 file signature box.
231 *
232 * @param cio the stream to write data to.
233 * @param jp2 the jpeg2000 file codec.
234 * @param p_manager the user event manager.
235 *
236 * @return true if writing was successful.
237 */
238 static OPJ_BOOL opj_jp2_write_jp( opj_jp2_t *jp2,
239 opj_stream_private_t *cio,
240 opj_event_mgr_t * p_manager );
241
242 /**
243 Apply collected palette data
244 @param color Collector for profile, cdef and pclr data
245 @param image
246 */
247 static void opj_jp2_apply_pclr(opj_image_t *image, opj_jp2_color_t *color);
248
249 static void opj_jp2_free_pclr(opj_jp2_color_t *color);
250
251 /**
252 * Collect palette data
253 *
254 * @param jp2 JP2 handle
255 * @param p_pclr_header_data FIXME DOC
256 * @param p_pclr_header_size FIXME DOC
257 * @param p_manager
258 *
259 * @return Returns true if successful, returns false otherwise
260 */
261 static OPJ_BOOL opj_jp2_read_pclr( opj_jp2_t *jp2,
262 OPJ_BYTE * p_pclr_header_data,
263 OPJ_UINT32 p_pclr_header_size,
264 opj_event_mgr_t * p_manager );
265
266 /**
267 * Collect component mapping data
268 *
269 * @param jp2 JP2 handle
270 * @param p_cmap_header_data FIXME DOC
271 * @param p_cmap_header_size FIXME DOC
272 * @param p_manager FIXME DOC
273 *
274 * @return Returns true if successful, returns false otherwise
275 */
276
277 static OPJ_BOOL opj_jp2_read_cmap( opj_jp2_t * jp2,
278 OPJ_BYTE * p_cmap_header_data,
279 OPJ_UINT32 p_cmap_header_size,
280 opj_event_mgr_t * p_manager );
281
282 /**
283 * Reads the Color Specification box.
284 *
285 * @param p_colr_header_data pointer to actual data (already read from file)
286 * @param jp2 the jpeg2000 file codec.
287 * @param p_colr_header_size the size of the color header
288 * @param p_manager the user event manager.
289 *
290 * @return true if the bpc header is valid, fale else.
291 */
292 static OPJ_BOOL opj_jp2_read_colr( opj_jp2_t *jp2,
293 OPJ_BYTE * p_colr_header_data,
294 OPJ_UINT32 p_colr_header_size,
295 opj_event_mgr_t * p_manager );
296
297 /*@}*/
298
299 /*@}*/
300
301 /**
302 * Sets up the procedures to do on writing header after the codestream.
303 * Developpers wanting to extend the library can add their own writing procedures.
304 */
305 static void opj_jp2_setup_end_header_writing (opj_jp2_t *jp2);
306
307 /**
308 * Sets up the procedures to do on reading header after the codestream.
309 * Developpers wanting to extend the library can add their own writing procedures.
310 */
311 static void opj_jp2_setup_end_header_reading (opj_jp2_t *jp2);
312
313 /**
314 * Reads a jpeg2000 file header structure.
315 *
316 * @param jp2 the jpeg2000 file header structure.
317 * @param stream the stream to read data from.
318 * @param p_manager the user event manager.
319 *
320 * @return true if the box is valid.
321 */
322 static OPJ_BOOL opj_jp2_read_header_procedure( opj_jp2_t *jp2,
323 opj_stream_private_t *stream,
324 opj_event_mgr_t * p_manager );
325
326 /**
327 * Excutes the given procedures on the given codec.
328 *
329 * @param p_procedure_list the list of procedures to execute
330 * @param jp2 the jpeg2000 file codec to execute the procedures on.
331 * @param stream the stream to execute the procedures on.
332 * @param p_manager the user manager.
333 *
334 * @return true if all the procedures were successfully executed.
335 */
336 static OPJ_BOOL opj_jp2_exec ( opj_jp2_t * jp2,
337 opj_procedure_list_t * p_procedure_list,
338 opj_stream_private_t *stream,
339 opj_event_mgr_t * p_manager );
340
341 /**
342 * Reads a box header. The box is the way data is packed inside a jpeg2000 file structure.
343 *
344 * @param cio the input stream to read data from.
345 * @param box the box structure to fill.
346 * @param p_number_bytes_read pointer to an int that will store the number of bytes read from the stream (shoul usually be 2).
347 * @param p_manager user event manager.
348 *
349 * @return true if the box is reconized, false otherwise
350 */
351 static OPJ_BOOL opj_jp2_read_boxhdr(opj_jp2_box_t *box,
352 OPJ_UINT32 * p_number_bytes_read,
353 opj_stream_private_t *cio,
354 opj_event_mgr_t * p_manager);
355
356 /**
357 * Sets up the validation ,i.e. adds the procedures to lauch to make sure the codec parameters
358 * are valid. Developpers wanting to extend the library can add their own validation procedures.
359 */
360 static void opj_jp2_setup_encoding_validation (opj_jp2_t *jp2);
361
362 /**
363 * Sets up the procedures to do on writing header. Developpers wanting to extend the library can add their own writing procedures.
364 */
365 static void opj_jp2_setup_header_writing (opj_jp2_t *jp2);
366
367 OPJ_BOOL opj_jp2_default_validation ( opj_jp2_t * jp2,
368 opj_stream_private_t *cio,
369 opj_event_mgr_t * p_manager );
370
371 /**
372 * Finds the image execution function related to the given box id.
373 *
374 * @param p_id the id of the handler to fetch.
375 *
376 * @return the given handler or NULL if it could not be found.
377 */
378 static const opj_jp2_header_handler_t * opj_jp2_img_find_handler (OPJ_UINT32 p_id);
379
380 /**
381 * Finds the execution function related to the given box id.
382 *
383 * @param p_id the id of the handler to fetch.
384 *
385 * @return the given handler or NULL if it could not be found.
386 */
387 static const opj_jp2_header_handler_t * opj_jp2_find_handler (OPJ_UINT32 p_id );
388
389 const opj_jp2_header_handler_t jp2_header [] =
390 {
391 {JP2_JP,opj_jp2_read_jp},
392 {JP2_FTYP,opj_jp2_read_ftyp},
393 {JP2_JP2H,opj_jp2_read_jp2h}
394 };
395
396 const opj_jp2_header_handler_t jp2_img_header [] =
397 {
398 {JP2_IHDR,opj_jp2_read_ihdr},
399 {JP2_COLR,opj_jp2_read_colr},
400 {JP2_BPCC,opj_jp2_read_bpcc},
401 {JP2_PCLR,opj_jp2_read_pclr},
402 {JP2_CMAP,opj_jp2_read_cmap},
403 {JP2_CDEF,opj_jp2_read_cdef}
404
405 };
406
407 /**
408 * Reads a box header. The box is the way data is packed inside a jpeg2000 file structure. Data is read from a character string
409 *
410 * @param box the box structure to fill.
411 * @param p_data the character string to read data from.
412 * @param p_number_bytes_read pointer to an int that will store the number of bytes read from the stream (shoul usually be 2).
413 * @param p_box_max_size the maximum number of bytes in the box.
414 * @param p_manager FIXME DOC
415 *
416 * @return true if the box is reconized, false otherwise
417 */
418 static OPJ_BOOL opj_jp2_read_boxhdr_char( opj_jp2_box_t *box,
419 OPJ_BYTE * p_data,
420 OPJ_UINT32 * p_number_bytes_read,
421 OPJ_UINT32 p_box_max_size,
422 opj_event_mgr_t * p_manager );
423
424 /**
425 * Sets up the validation ,i.e. adds the procedures to lauch to make sure the codec parameters
426 * are valid. Developpers wanting to extend the library can add their own validation procedures.
427 */
428 static void opj_jp2_setup_decoding_validation (opj_jp2_t *jp2);
429
430 /**
431 * Sets up the procedures to do on reading header.
432 * Developpers wanting to extend the library can add their own writing procedures.
433 */
434 static void opj_jp2_setup_header_reading (opj_jp2_t *jp2);
435
436 /* ----------------------------------------------------------------------- */
opj_jp2_read_boxhdr(opj_jp2_box_t * box,OPJ_UINT32 * p_number_bytes_read,opj_stream_private_t * cio,opj_event_mgr_t * p_manager)437 OPJ_BOOL opj_jp2_read_boxhdr(opj_jp2_box_t *box,
438 OPJ_UINT32 * p_number_bytes_read,
439 opj_stream_private_t *cio,
440 opj_event_mgr_t * p_manager )
441 {
442 /* read header from file */
443 OPJ_BYTE l_data_header [8];
444
445 /* preconditions */
446 assert(cio != 00);
447 assert(box != 00);
448 assert(p_number_bytes_read != 00);
449 assert(p_manager != 00);
450
451 *p_number_bytes_read = (OPJ_UINT32)opj_stream_read_data(cio,l_data_header,8,p_manager);
452 if (*p_number_bytes_read != 8) {
453 return OPJ_FALSE;
454 }
455
456 /* process read data */
457 opj_read_bytes(l_data_header,&(box->length), 4);
458 opj_read_bytes(l_data_header+4,&(box->type), 4);
459
460 if(box->length == 0)/* last box */
461 {
462 const OPJ_OFF_T bleft = opj_stream_get_number_byte_left(cio);
463 box->length = (OPJ_UINT32)bleft;
464 assert( (OPJ_OFF_T)box->length == bleft );
465 return OPJ_TRUE;
466 }
467
468 /* do we have a "special very large box ?" */
469 /* read then the XLBox */
470 if (box->length == 1) {
471 OPJ_UINT32 l_xl_part_size;
472
473 OPJ_UINT32 l_nb_bytes_read = (OPJ_UINT32)opj_stream_read_data(cio,l_data_header,8,p_manager);
474 if (l_nb_bytes_read != 8) {
475 if (l_nb_bytes_read > 0) {
476 *p_number_bytes_read += l_nb_bytes_read;
477 }
478
479 return OPJ_FALSE;
480 }
481
482 *p_number_bytes_read = 16;
483 opj_read_bytes(l_data_header,&l_xl_part_size, 4);
484 if (l_xl_part_size != 0) {
485 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box sizes higher than 2^32\n");
486 return OPJ_FALSE;
487 }
488 opj_read_bytes(l_data_header+4,&(box->length), 4);
489 }
490 return OPJ_TRUE;
491 }
492
493 #if 0
494 static void jp2_write_url(opj_cio_t *cio, char *Idx_file) {
495 OPJ_UINT32 i;
496 opj_jp2_box_t box;
497
498 box.init_pos = cio_tell(cio);
499 cio_skip(cio, 4);
500 cio_write(cio, JP2_URL, 4); /* DBTL */
501 cio_write(cio, 0, 1); /* VERS */
502 cio_write(cio, 0, 3); /* FLAG */
503
504 if(Idx_file) {
505 for (i = 0; i < strlen(Idx_file); i++) {
506 cio_write(cio, Idx_file[i], 1);
507 }
508 }
509
510 box.length = cio_tell(cio) - box.init_pos;
511 cio_seek(cio, box.init_pos);
512 cio_write(cio, box.length, 4); /* L */
513 cio_seek(cio, box.init_pos + box.length);
514 }
515 #endif
516
opj_jp2_read_ihdr(opj_jp2_t * jp2,OPJ_BYTE * p_image_header_data,OPJ_UINT32 p_image_header_size,opj_event_mgr_t * p_manager)517 OPJ_BOOL opj_jp2_read_ihdr( opj_jp2_t *jp2,
518 OPJ_BYTE *p_image_header_data,
519 OPJ_UINT32 p_image_header_size,
520 opj_event_mgr_t * p_manager )
521 {
522 /* preconditions */
523 assert(p_image_header_data != 00);
524 assert(jp2 != 00);
525 assert(p_manager != 00);
526
527 if (p_image_header_size != 14) {
528 opj_event_msg(p_manager, EVT_ERROR, "Bad image header box (bad size)\n");
529 return OPJ_FALSE;
530 }
531
532 opj_read_bytes(p_image_header_data,&(jp2->h),4); /* HEIGHT */
533 p_image_header_data += 4;
534 opj_read_bytes(p_image_header_data,&(jp2->w),4); /* WIDTH */
535 p_image_header_data += 4;
536 opj_read_bytes(p_image_header_data,&(jp2->numcomps),2); /* NC */
537 p_image_header_data += 2;
538
539 /* allocate memory for components */
540 jp2->comps = (opj_jp2_comps_t*) opj_malloc(jp2->numcomps * sizeof(opj_jp2_comps_t));
541 if (jp2->comps == 0) {
542 opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to handle image header (ihdr)\n");
543 return OPJ_FALSE;
544 }
545 memset(jp2->comps,0,jp2->numcomps * sizeof(opj_jp2_comps_t));
546
547 opj_read_bytes(p_image_header_data,&(jp2->bpc),1); /* BPC */
548 ++ p_image_header_data;
549
550 opj_read_bytes(p_image_header_data,&(jp2->C),1); /* C */
551 ++ p_image_header_data;
552
553 /* Should be equal to 7 cf. chapter about image header box of the norm */
554 if (jp2->C != 7){
555 opj_event_msg(p_manager, EVT_INFO, "JP2 IHDR box: compression type indicate that the file is not a conforming JP2 file (%d) \n", jp2->C);
556 }
557
558 opj_read_bytes(p_image_header_data,&(jp2->UnkC),1); /* UnkC */
559 ++ p_image_header_data;
560 opj_read_bytes(p_image_header_data,&(jp2->IPR),1); /* IPR */
561 ++ p_image_header_data;
562
563 return OPJ_TRUE;
564 }
565
opj_jp2_write_ihdr(opj_jp2_t * jp2,OPJ_UINT32 * p_nb_bytes_written)566 OPJ_BYTE * opj_jp2_write_ihdr(opj_jp2_t *jp2,
567 OPJ_UINT32 * p_nb_bytes_written
568 )
569 {
570 OPJ_BYTE * l_ihdr_data,* l_current_ihdr_ptr;
571
572 /* preconditions */
573 assert(jp2 != 00);
574 assert(p_nb_bytes_written != 00);
575
576 /* default image header is 22 bytes wide */
577 l_ihdr_data = (OPJ_BYTE *) opj_malloc(22);
578 if (l_ihdr_data == 00) {
579 return 00;
580 }
581 memset(l_ihdr_data,0,22);
582
583 l_current_ihdr_ptr = l_ihdr_data;
584
585 opj_write_bytes(l_current_ihdr_ptr,22,4); /* write box size */
586 l_current_ihdr_ptr+=4;
587
588 opj_write_bytes(l_current_ihdr_ptr,JP2_IHDR, 4); /* IHDR */
589 l_current_ihdr_ptr+=4;
590
591 opj_write_bytes(l_current_ihdr_ptr,jp2->h, 4); /* HEIGHT */
592 l_current_ihdr_ptr+=4;
593
594 opj_write_bytes(l_current_ihdr_ptr, jp2->w, 4); /* WIDTH */
595 l_current_ihdr_ptr+=4;
596
597 opj_write_bytes(l_current_ihdr_ptr, jp2->numcomps, 2); /* NC */
598 l_current_ihdr_ptr+=2;
599
600 opj_write_bytes(l_current_ihdr_ptr, jp2->bpc, 1); /* BPC */
601 ++l_current_ihdr_ptr;
602
603 opj_write_bytes(l_current_ihdr_ptr, jp2->C, 1); /* C : Always 7 */
604 ++l_current_ihdr_ptr;
605
606 opj_write_bytes(l_current_ihdr_ptr, jp2->UnkC, 1); /* UnkC, colorspace unknown */
607 ++l_current_ihdr_ptr;
608
609 opj_write_bytes(l_current_ihdr_ptr, jp2->IPR, 1); /* IPR, no intellectual property */
610 ++l_current_ihdr_ptr;
611
612 *p_nb_bytes_written = 22;
613
614 return l_ihdr_data;
615 }
616
opj_jp2_write_bpcc(opj_jp2_t * jp2,OPJ_UINT32 * p_nb_bytes_written)617 OPJ_BYTE * opj_jp2_write_bpcc( opj_jp2_t *jp2,
618 OPJ_UINT32 * p_nb_bytes_written
619 )
620 {
621 OPJ_UINT32 i;
622 /* room for 8 bytes for box and 1 byte for each component */
623 OPJ_UINT32 l_bpcc_size = 8 + jp2->numcomps;
624 OPJ_BYTE * l_bpcc_data,* l_current_bpcc_ptr;
625
626 /* preconditions */
627 assert(jp2 != 00);
628 assert(p_nb_bytes_written != 00);
629
630 l_bpcc_data = (OPJ_BYTE *) opj_malloc(l_bpcc_size);
631 if (l_bpcc_data == 00) {
632 return 00;
633 }
634 memset(l_bpcc_data,0,l_bpcc_size);
635
636 l_current_bpcc_ptr = l_bpcc_data;
637
638 opj_write_bytes(l_current_bpcc_ptr,l_bpcc_size,4); /* write box size */
639 l_current_bpcc_ptr += 4;
640
641 opj_write_bytes(l_current_bpcc_ptr,JP2_BPCC,4); /* BPCC */
642 l_current_bpcc_ptr += 4;
643
644 for (i = 0; i < jp2->numcomps; ++i) {
645 opj_write_bytes(l_current_bpcc_ptr, jp2->comps[i].bpcc, 1); /* write each component information */
646 ++l_current_bpcc_ptr;
647 }
648
649 *p_nb_bytes_written = l_bpcc_size;
650
651 return l_bpcc_data;
652 }
653
opj_jp2_read_bpcc(opj_jp2_t * jp2,OPJ_BYTE * p_bpc_header_data,OPJ_UINT32 p_bpc_header_size,opj_event_mgr_t * p_manager)654 OPJ_BOOL opj_jp2_read_bpcc( opj_jp2_t *jp2,
655 OPJ_BYTE * p_bpc_header_data,
656 OPJ_UINT32 p_bpc_header_size,
657 opj_event_mgr_t * p_manager
658 )
659 {
660 OPJ_UINT32 i;
661
662 /* preconditions */
663 assert(p_bpc_header_data != 00);
664 assert(jp2 != 00);
665 assert(p_manager != 00);
666
667
668 if (jp2->bpc != 255 ){
669 opj_event_msg(p_manager, EVT_WARNING, "A BPCC header box is available although BPC given by the IHDR box (%d) indicate components bit depth is constant\n",jp2->bpc);
670 }
671
672 /* and length is relevant */
673 if (p_bpc_header_size != jp2->numcomps) {
674 opj_event_msg(p_manager, EVT_ERROR, "Bad BPCC header box (bad size)\n");
675 return OPJ_FALSE;
676 }
677
678 /* read info for each component */
679 for (i = 0; i < jp2->numcomps; ++i) {
680 opj_read_bytes(p_bpc_header_data,&jp2->comps[i].bpcc ,1); /* read each BPCC component */
681 ++p_bpc_header_data;
682 }
683
684 return OPJ_TRUE;
685 }
686
opj_jp2_write_colr(opj_jp2_t * jp2,OPJ_UINT32 * p_nb_bytes_written)687 OPJ_BYTE * opj_jp2_write_colr( opj_jp2_t *jp2,
688 OPJ_UINT32 * p_nb_bytes_written
689 )
690 {
691 /* room for 8 bytes for box 3 for common data and variable upon profile*/
692 OPJ_UINT32 l_colr_size = 11;
693 OPJ_BYTE * l_colr_data,* l_current_colr_ptr;
694
695 /* preconditions */
696 assert(jp2 != 00);
697 assert(p_nb_bytes_written != 00);
698 assert(jp2->meth == 1 || jp2->meth == 2);
699
700 switch (jp2->meth) {
701 case 1 :
702 l_colr_size += 4; /* EnumCS */
703 break;
704 case 2 :
705 assert(jp2->color.icc_profile_len); /* ICC profile */
706 l_colr_size += jp2->color.icc_profile_len;
707 break;
708 default :
709 return 00;
710 }
711
712 l_colr_data = (OPJ_BYTE *) opj_malloc(l_colr_size);
713 if (l_colr_data == 00) {
714 return 00;
715 }
716 memset(l_colr_data,0,l_colr_size);
717
718 l_current_colr_ptr = l_colr_data;
719
720 opj_write_bytes(l_current_colr_ptr,l_colr_size,4); /* write box size */
721 l_current_colr_ptr += 4;
722
723 opj_write_bytes(l_current_colr_ptr,JP2_COLR,4); /* BPCC */
724 l_current_colr_ptr += 4;
725
726 opj_write_bytes(l_current_colr_ptr, jp2->meth,1); /* METH */
727 ++l_current_colr_ptr;
728
729 opj_write_bytes(l_current_colr_ptr, jp2->precedence,1); /* PRECEDENCE */
730 ++l_current_colr_ptr;
731
732 opj_write_bytes(l_current_colr_ptr, jp2->approx,1); /* APPROX */
733 ++l_current_colr_ptr;
734
735 if (jp2->meth == 1) { /* Meth value is restricted to 1 or 2 (Table I.9 of part 1) */
736 opj_write_bytes(l_current_colr_ptr, jp2->enumcs,4); } /* EnumCS */
737 else {
738 if (jp2->meth == 2) { /* ICC profile */
739 OPJ_UINT32 i;
740 for(i = 0; i < jp2->color.icc_profile_len; ++i) {
741 opj_write_bytes(l_current_colr_ptr, jp2->color.icc_profile_buf[i], 1);
742 ++l_current_colr_ptr;
743 }
744 }
745 }
746
747 *p_nb_bytes_written = l_colr_size;
748
749 return l_colr_data;
750 }
751
opj_jp2_free_pclr(opj_jp2_color_t * color)752 void opj_jp2_free_pclr(opj_jp2_color_t *color)
753 {
754 opj_free(color->jp2_pclr->channel_sign);
755 opj_free(color->jp2_pclr->channel_size);
756 opj_free(color->jp2_pclr->entries);
757
758 if(color->jp2_pclr->cmap) opj_free(color->jp2_pclr->cmap);
759
760 opj_free(color->jp2_pclr); color->jp2_pclr = NULL;
761 }
762
opj_jp2_check_color(opj_image_t * image,opj_jp2_color_t * color,opj_event_mgr_t * p_manager)763 static OPJ_BOOL opj_jp2_check_color(opj_image_t *image, opj_jp2_color_t *color, opj_event_mgr_t *p_manager)
764 {
765 OPJ_UINT16 i;
766
767 /* testcase 4149.pdf.SIGSEGV.cf7.3501 */
768 if (color->jp2_cdef) {
769 opj_jp2_cdef_info_t *info = color->jp2_cdef->info;
770 OPJ_UINT16 n = color->jp2_cdef->n;
771
772 for (i = 0; i < n; i++) {
773 if (info[i].cn >= image->numcomps) {
774 opj_event_msg(p_manager, EVT_ERROR, "Invalid component index %d (>= %d).\n", info[i].cn, image->numcomps);
775 return OPJ_FALSE;
776 }
777 if (info[i].asoc > 0 && (OPJ_UINT32)(info[i].asoc - 1) >= image->numcomps) {
778 opj_event_msg(p_manager, EVT_ERROR, "Invalid component index %d (>= %d).\n", info[i].asoc - 1, image->numcomps);
779 return OPJ_FALSE;
780 }
781 }
782 }
783
784 /* testcases 451.pdf.SIGSEGV.f4c.3723, 451.pdf.SIGSEGV.5b5.3723 and
785 66ea31acbb0f23a2bbc91f64d69a03f5_signal_sigsegv_13937c0_7030_5725.pdf */
786 if (color->jp2_pclr && color->jp2_pclr->cmap) {
787 OPJ_UINT16 nr_channels = color->jp2_pclr->nr_channels;
788 opj_jp2_cmap_comp_t *cmap = color->jp2_pclr->cmap;
789 OPJ_BOOL *pcol_usage, is_sane = OPJ_TRUE;
790
791 /* verify that all original components match an existing one */
792 for (i = 0; i < nr_channels; i++) {
793 if (cmap[i].cmp >= image->numcomps) {
794 opj_event_msg(p_manager, EVT_ERROR, "Invalid component index %d (>= %d).\n", cmap[i].cmp, image->numcomps);
795 is_sane = OPJ_FALSE;
796 }
797 }
798
799 pcol_usage = opj_calloc(nr_channels, sizeof(OPJ_BOOL));
800 if (!pcol_usage) {
801 opj_event_msg(p_manager, EVT_ERROR, "Unexpected OOM.\n");
802 return OPJ_FALSE;
803 }
804 /* verify that no component is targeted more than once */
805 for (i = 0; i < nr_channels; i++) {
806 OPJ_UINT16 pcol = cmap[i].pcol;
807 assert(cmap[i].mtyp == 0 || cmap[i].mtyp == 1);
808 if (pcol >= nr_channels) {
809 opj_event_msg(p_manager, EVT_ERROR, "Invalid component/palette index for direct mapping %d.\n", pcol);
810 is_sane = OPJ_FALSE;
811 }
812 else if (pcol_usage[pcol] && cmap[i].mtyp == 1) {
813 opj_event_msg(p_manager, EVT_ERROR, "Component %d is mapped twice.\n", pcol);
814 is_sane = OPJ_FALSE;
815 }
816 else if (cmap[i].mtyp == 0 && cmap[i].pcol != 0) {
817 /* I.5.3.5 PCOL: If the value of the MTYP field for this channel is 0, then
818 * the value of this field shall be 0. */
819 opj_event_msg(p_manager, EVT_ERROR, "Direct use at #%d however pcol=%d.\n", i, pcol);
820 is_sane = OPJ_FALSE;
821 }
822 else
823 pcol_usage[pcol] = OPJ_TRUE;
824 }
825 /* verify that all components are targeted at least once */
826 for (i = 0; i < nr_channels; i++) {
827 if (!pcol_usage[i] && cmap[i].mtyp != 0) {
828 opj_event_msg(p_manager, EVT_ERROR, "Component %d doesn't have a mapping.\n", i);
829 is_sane = OPJ_FALSE;
830 }
831 }
832 opj_free(pcol_usage);
833 if (!is_sane) {
834 return OPJ_FALSE;
835 }
836 }
837
838 return OPJ_TRUE;
839 }
840
841 /* file9.jp2 */
opj_jp2_apply_pclr(opj_image_t * image,opj_jp2_color_t * color)842 void opj_jp2_apply_pclr(opj_image_t *image, opj_jp2_color_t *color)
843 {
844 opj_image_comp_t *old_comps, *new_comps;
845 OPJ_BYTE *channel_size, *channel_sign;
846 OPJ_UINT32 *entries;
847 opj_jp2_cmap_comp_t *cmap;
848 OPJ_INT32 *src, *dst;
849 OPJ_UINT32 j, max;
850 OPJ_UINT16 i, nr_channels, cmp, pcol;
851 OPJ_INT32 k, top_k;
852
853 channel_size = color->jp2_pclr->channel_size;
854 channel_sign = color->jp2_pclr->channel_sign;
855 entries = color->jp2_pclr->entries;
856 cmap = color->jp2_pclr->cmap;
857 nr_channels = color->jp2_pclr->nr_channels;
858
859 old_comps = image->comps;
860 new_comps = (opj_image_comp_t*)
861 opj_malloc(nr_channels * sizeof(opj_image_comp_t));
862
863 for(i = 0; i < nr_channels; ++i) {
864 pcol = cmap[i].pcol; cmp = cmap[i].cmp;
865
866 /* Direct use */
867 if(cmap[i].mtyp == 0){
868 assert( pcol == 0 );
869 new_comps[i] = old_comps[cmp];
870 } else {
871 assert( i == pcol );
872 new_comps[pcol] = old_comps[cmp];
873 }
874
875 /* Palette mapping: */
876 new_comps[i].data = (OPJ_INT32*)
877 opj_malloc(old_comps[cmp].w * old_comps[cmp].h * sizeof(OPJ_INT32));
878 new_comps[i].prec = channel_size[i];
879 new_comps[i].sgnd = channel_sign[i];
880 }
881
882 top_k = color->jp2_pclr->nr_entries - 1;
883
884 for(i = 0; i < nr_channels; ++i) {
885 /* Palette mapping: */
886 cmp = cmap[i].cmp; pcol = cmap[i].pcol;
887 src = old_comps[cmp].data;
888 assert( src );
889 max = new_comps[pcol].w * new_comps[pcol].h;
890
891 /* Direct use: */
892 if(cmap[i].mtyp == 0) {
893 assert( cmp == 0 );
894 dst = new_comps[i].data;
895 assert( dst );
896 for(j = 0; j < max; ++j) {
897 dst[j] = src[j];
898 }
899 }
900 else {
901 assert( i == pcol );
902 dst = new_comps[pcol].data;
903 assert( dst );
904 for(j = 0; j < max; ++j) {
905 /* The index */
906 if((k = src[j]) < 0) k = 0; else if(k > top_k) k = top_k;
907
908 /* The colour */
909 dst[j] = (OPJ_INT32)entries[k * nr_channels + pcol];
910 }
911 }
912 }
913
914 max = image->numcomps;
915 for(i = 0; i < max; ++i) {
916 if(old_comps[i].data) opj_free(old_comps[i].data);
917 }
918
919 opj_free(old_comps);
920 image->comps = new_comps;
921 image->numcomps = nr_channels;
922
923 opj_jp2_free_pclr(color);
924
925 }/* apply_pclr() */
926
opj_jp2_read_pclr(opj_jp2_t * jp2,OPJ_BYTE * p_pclr_header_data,OPJ_UINT32 p_pclr_header_size,opj_event_mgr_t * p_manager)927 OPJ_BOOL opj_jp2_read_pclr( opj_jp2_t *jp2,
928 OPJ_BYTE * p_pclr_header_data,
929 OPJ_UINT32 p_pclr_header_size,
930 opj_event_mgr_t * p_manager
931 )
932 {
933 opj_jp2_pclr_t *jp2_pclr;
934 OPJ_BYTE *channel_size, *channel_sign;
935 OPJ_UINT32 *entries;
936 OPJ_UINT16 nr_entries,nr_channels;
937 OPJ_UINT16 i, j;
938 OPJ_UINT32 l_value;
939 OPJ_BYTE *orig_header_data = p_pclr_header_data;
940
941 /* preconditions */
942 assert(p_pclr_header_data != 00);
943 assert(jp2 != 00);
944 assert(p_manager != 00);
945 (void)p_pclr_header_size;
946
947 if(jp2->color.jp2_pclr)
948 return OPJ_FALSE;
949
950 if (p_pclr_header_size < 3)
951 return OPJ_FALSE;
952
953 opj_read_bytes(p_pclr_header_data, &l_value , 2); /* NE */
954 p_pclr_header_data += 2;
955 nr_entries = (OPJ_UINT16) l_value;
956
957 opj_read_bytes(p_pclr_header_data, &l_value , 1); /* NPC */
958 ++p_pclr_header_data;
959 nr_channels = (OPJ_UINT16) l_value;
960
961 if (p_pclr_header_size < 3 + (OPJ_UINT32)nr_channels || nr_channels == 0 || nr_entries >= (OPJ_UINT32)-1 / nr_channels)
962 return OPJ_FALSE;
963
964 entries = (OPJ_UINT32*) opj_malloc((size_t)nr_channels * nr_entries * sizeof(OPJ_UINT32));
965 if (!entries)
966 return OPJ_FALSE;
967 channel_size = (OPJ_BYTE*) opj_malloc(nr_channels);
968 if (!channel_size)
969 {
970 opj_free(entries);
971 return OPJ_FALSE;
972 }
973 channel_sign = (OPJ_BYTE*) opj_malloc(nr_channels);
974 if (!channel_sign)
975 {
976 opj_free(entries);
977 opj_free(channel_size);
978 return OPJ_FALSE;
979 }
980
981 jp2_pclr = (opj_jp2_pclr_t*)opj_malloc(sizeof(opj_jp2_pclr_t));
982 if (!jp2_pclr)
983 {
984 opj_free(entries);
985 opj_free(channel_size);
986 opj_free(channel_sign);
987 return OPJ_FALSE;
988 }
989
990 jp2_pclr->channel_sign = channel_sign;
991 jp2_pclr->channel_size = channel_size;
992 jp2_pclr->entries = entries;
993 jp2_pclr->nr_entries = nr_entries;
994 jp2_pclr->nr_channels = (OPJ_BYTE) l_value;
995 jp2_pclr->cmap = NULL;
996
997 jp2->color.jp2_pclr = jp2_pclr;
998
999 for(i = 0; i < nr_channels; ++i) {
1000 opj_read_bytes(p_pclr_header_data, &l_value , 1); /* Bi */
1001 ++p_pclr_header_data;
1002
1003 channel_size[i] = (OPJ_BYTE)((l_value & 0x7f) + 1);
1004 channel_sign[i] = (l_value & 0x80) ? 1 : 0;
1005 }
1006
1007 for(j = 0; j < nr_entries; ++j) {
1008 for(i = 0; i < nr_channels; ++i) {
1009 OPJ_UINT32 bytes_to_read = (OPJ_UINT32)((channel_size[i]+7)>>3);
1010
1011 if (bytes_to_read > sizeof(OPJ_UINT32))
1012 bytes_to_read = sizeof(OPJ_UINT32);
1013 if ((ptrdiff_t)p_pclr_header_size < p_pclr_header_data - orig_header_data + (ptrdiff_t)bytes_to_read)
1014 return OPJ_FALSE;
1015
1016 opj_read_bytes(p_pclr_header_data, &l_value , bytes_to_read); /* Cji */
1017 p_pclr_header_data += bytes_to_read;
1018 *entries = (OPJ_UINT32) l_value;
1019 entries++;
1020 }
1021 }
1022
1023 return OPJ_TRUE;
1024 }
1025
opj_jp2_read_cmap(opj_jp2_t * jp2,OPJ_BYTE * p_cmap_header_data,OPJ_UINT32 p_cmap_header_size,opj_event_mgr_t * p_manager)1026 OPJ_BOOL opj_jp2_read_cmap( opj_jp2_t * jp2,
1027 OPJ_BYTE * p_cmap_header_data,
1028 OPJ_UINT32 p_cmap_header_size,
1029 opj_event_mgr_t * p_manager
1030 )
1031 {
1032 opj_jp2_cmap_comp_t *cmap;
1033 OPJ_BYTE i, nr_channels;
1034 OPJ_UINT32 l_value;
1035
1036 /* preconditions */
1037 assert(jp2 != 00);
1038 assert(p_cmap_header_data != 00);
1039 assert(p_manager != 00);
1040 (void)p_cmap_header_size;
1041
1042 /* Need nr_channels: */
1043 if(jp2->color.jp2_pclr == NULL) {
1044 opj_event_msg(p_manager, EVT_ERROR, "Need to read a PCLR box before the CMAP box.\n");
1045 return OPJ_FALSE;
1046 }
1047
1048 /* Part 1, I.5.3.5: 'There shall be at most one Component Mapping box
1049 * inside a JP2 Header box' :
1050 */
1051 if(jp2->color.jp2_pclr->cmap) {
1052 opj_event_msg(p_manager, EVT_ERROR, "Only one CMAP box is allowed.\n");
1053 return OPJ_FALSE;
1054 }
1055
1056 nr_channels = jp2->color.jp2_pclr->nr_channels;
1057 if (p_cmap_header_size < (OPJ_UINT32)nr_channels * 4) {
1058 opj_event_msg(p_manager, EVT_ERROR, "Insufficient data for CMAP box.\n");
1059 return OPJ_FALSE;
1060 }
1061
1062 cmap = (opj_jp2_cmap_comp_t*) opj_malloc(nr_channels * sizeof(opj_jp2_cmap_comp_t));
1063 if (!cmap)
1064 return OPJ_FALSE;
1065
1066
1067 for(i = 0; i < nr_channels; ++i) {
1068 opj_read_bytes(p_cmap_header_data, &l_value, 2); /* CMP^i */
1069 p_cmap_header_data +=2;
1070 cmap[i].cmp = (OPJ_UINT16) l_value;
1071
1072 opj_read_bytes(p_cmap_header_data, &l_value, 1); /* MTYP^i */
1073 ++p_cmap_header_data;
1074 cmap[i].mtyp = (OPJ_BYTE) l_value;
1075
1076 opj_read_bytes(p_cmap_header_data, &l_value, 1); /* PCOL^i */
1077 ++p_cmap_header_data;
1078 cmap[i].pcol = (OPJ_BYTE) l_value;
1079 }
1080
1081 jp2->color.jp2_pclr->cmap = cmap;
1082
1083 return OPJ_TRUE;
1084 }
1085
opj_jp2_apply_cdef(opj_image_t * image,opj_jp2_color_t * color)1086 void opj_jp2_apply_cdef(opj_image_t *image, opj_jp2_color_t *color)
1087 {
1088 opj_jp2_cdef_info_t *info;
1089 OPJ_UINT16 i, n, cn, asoc, acn;
1090
1091 info = color->jp2_cdef->info;
1092 n = color->jp2_cdef->n;
1093
1094 for(i = 0; i < n; ++i)
1095 {
1096 /* WATCH: acn = asoc - 1 ! */
1097 asoc = info[i].asoc;
1098 if(asoc == 0 || asoc == 65535)
1099 {
1100 if (i < image->numcomps)
1101 image->comps[i].alpha = info[i].typ;
1102 continue;
1103 }
1104
1105 cn = info[i].cn;
1106 acn = (OPJ_UINT16)(asoc - 1);
1107 if( cn >= image->numcomps || acn >= image->numcomps )
1108 {
1109 fprintf(stderr, "cn=%d, acn=%d, numcomps=%d\n", cn, acn, image->numcomps);
1110 continue;
1111 }
1112
1113 if(cn != acn)
1114 {
1115 opj_image_comp_t saved;
1116
1117 memcpy(&saved, &image->comps[cn], sizeof(opj_image_comp_t));
1118 memcpy(&image->comps[cn], &image->comps[acn], sizeof(opj_image_comp_t));
1119 memcpy(&image->comps[acn], &saved, sizeof(opj_image_comp_t));
1120
1121 info[i].asoc = (OPJ_UINT16)(cn + 1);
1122 info[acn].asoc = (OPJ_UINT16)(info[acn].cn + 1);
1123 }
1124
1125 image->comps[cn].alpha = info[i].typ;
1126 }
1127
1128 if(color->jp2_cdef->info) opj_free(color->jp2_cdef->info);
1129
1130 opj_free(color->jp2_cdef); color->jp2_cdef = NULL;
1131
1132 }/* jp2_apply_cdef() */
1133
opj_jp2_read_cdef(opj_jp2_t * jp2,OPJ_BYTE * p_cdef_header_data,OPJ_UINT32 p_cdef_header_size,opj_event_mgr_t * p_manager)1134 OPJ_BOOL opj_jp2_read_cdef( opj_jp2_t * jp2,
1135 OPJ_BYTE * p_cdef_header_data,
1136 OPJ_UINT32 p_cdef_header_size,
1137 opj_event_mgr_t * p_manager
1138 )
1139 {
1140 opj_jp2_cdef_info_t *cdef_info;
1141 OPJ_UINT16 i;
1142 OPJ_UINT32 l_value;
1143
1144 /* preconditions */
1145 assert(jp2 != 00);
1146 assert(p_cdef_header_data != 00);
1147 assert(p_manager != 00);
1148 (void)p_cdef_header_size;
1149
1150 /* Part 1, I.5.3.6: 'The shall be at most one Channel Definition box
1151 * inside a JP2 Header box.'*/
1152 if(jp2->color.jp2_cdef) return OPJ_FALSE;
1153
1154 if (p_cdef_header_size < 2) {
1155 opj_event_msg(p_manager, EVT_ERROR, "Insufficient data for CDEF box.\n");
1156 return OPJ_FALSE;
1157 }
1158
1159 opj_read_bytes(p_cdef_header_data,&l_value ,2); /* N */
1160 p_cdef_header_data+= 2;
1161
1162 if ( (OPJ_UINT16)l_value == 0){ /* szukw000: FIXME */
1163 opj_event_msg(p_manager, EVT_ERROR, "Number of channel description is equal to zero in CDEF box.\n");
1164 return OPJ_FALSE;
1165 }
1166
1167 if (p_cdef_header_size < 2 + (OPJ_UINT32)(OPJ_UINT16)l_value * 6) {
1168 opj_event_msg(p_manager, EVT_ERROR, "Insufficient data for CDEF box.\n");
1169 return OPJ_FALSE;
1170 }
1171
1172 cdef_info = (opj_jp2_cdef_info_t*) opj_malloc(l_value * sizeof(opj_jp2_cdef_info_t));
1173 if (!cdef_info)
1174 return OPJ_FALSE;
1175
1176 jp2->color.jp2_cdef = (opj_jp2_cdef_t*)opj_malloc(sizeof(opj_jp2_cdef_t));
1177 if(!jp2->color.jp2_cdef)
1178 {
1179 opj_free(cdef_info);
1180 return OPJ_FALSE;
1181 }
1182 jp2->color.jp2_cdef->info = cdef_info;
1183 jp2->color.jp2_cdef->n = (OPJ_UINT16) l_value;
1184
1185 for(i = 0; i < jp2->color.jp2_cdef->n; ++i) {
1186 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Cn^i */
1187 p_cdef_header_data +=2;
1188 cdef_info[i].cn = (OPJ_UINT16) l_value;
1189
1190 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Typ^i */
1191 p_cdef_header_data +=2;
1192 cdef_info[i].typ = (OPJ_UINT16) l_value;
1193
1194 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Asoc^i */
1195 p_cdef_header_data +=2;
1196 cdef_info[i].asoc = (OPJ_UINT16) l_value;
1197 }
1198
1199 return OPJ_TRUE;
1200 }
1201
opj_jp2_read_colr(opj_jp2_t * jp2,OPJ_BYTE * p_colr_header_data,OPJ_UINT32 p_colr_header_size,opj_event_mgr_t * p_manager)1202 OPJ_BOOL opj_jp2_read_colr( opj_jp2_t *jp2,
1203 OPJ_BYTE * p_colr_header_data,
1204 OPJ_UINT32 p_colr_header_size,
1205 opj_event_mgr_t * p_manager
1206 )
1207 {
1208 OPJ_UINT32 l_value;
1209
1210 /* preconditions */
1211 assert(jp2 != 00);
1212 assert(p_colr_header_data != 00);
1213 assert(p_manager != 00);
1214
1215 if (p_colr_header_size < 3) {
1216 opj_event_msg(p_manager, EVT_ERROR, "Bad COLR header box (bad size)\n");
1217 return OPJ_FALSE;
1218 }
1219
1220 /* Part 1, I.5.3.3 : 'A conforming JP2 reader shall ignore all Colour
1221 * Specification boxes after the first.'
1222 */
1223 if(jp2->color.jp2_has_colr) {
1224 opj_event_msg(p_manager, EVT_INFO, "A conforming JP2 reader shall ignore all Colour Specification boxes after the first, so we ignore this one.\n");
1225 p_colr_header_data += p_colr_header_size;
1226 return OPJ_TRUE;
1227 }
1228
1229 opj_read_bytes(p_colr_header_data,&jp2->meth ,1); /* METH */
1230 ++p_colr_header_data;
1231
1232 opj_read_bytes(p_colr_header_data,&jp2->precedence ,1); /* PRECEDENCE */
1233 ++p_colr_header_data;
1234
1235 opj_read_bytes(p_colr_header_data,&jp2->approx ,1); /* APPROX */
1236 ++p_colr_header_data;
1237
1238 if (jp2->meth == 1) {
1239 if (p_colr_header_size > 7) {
1240 /* testcase Altona_Technical_v20_x4.pdf */
1241 opj_event_msg(p_manager, EVT_WARNING, "Bad COLR header box (bad size: %d)\n", p_colr_header_size);
1242 }
1243
1244 opj_read_bytes(p_colr_header_data,&jp2->enumcs ,4); /* EnumCS */
1245
1246 p_colr_header_data += 4;
1247
1248 if(jp2->enumcs == 14)/* CIELab */
1249 {
1250 OPJ_UINT32 *cielab;
1251 OPJ_UINT32 rl, ol, ra, oa, rb, ob, il;
1252
1253 cielab = (OPJ_UINT32*)opj_malloc(9 * sizeof(OPJ_UINT32));
1254 cielab[0] = 14; /* enumcs */
1255
1256 if(p_colr_header_size == 7)/* default values */
1257 {
1258 rl = ra = rb = ol = oa = ob = 0;
1259 il = 0x00443530; /* D50 */
1260 cielab[1] = 0x44454600;/* DEF */
1261 }
1262 else if(p_colr_header_size == 35)
1263 {
1264 opj_read_bytes(p_colr_header_data, &rl, 4);
1265 p_colr_header_data += 4;
1266 opj_read_bytes(p_colr_header_data, &ol, 4);
1267 p_colr_header_data += 4;
1268 opj_read_bytes(p_colr_header_data, &ra, 4);
1269 p_colr_header_data += 4;
1270 opj_read_bytes(p_colr_header_data, &oa, 4);
1271 p_colr_header_data += 4;
1272 opj_read_bytes(p_colr_header_data, &rb, 4);
1273 p_colr_header_data += 4;
1274 opj_read_bytes(p_colr_header_data, &ob, 4);
1275 p_colr_header_data += 4;
1276 opj_read_bytes(p_colr_header_data, &il, 4);
1277 p_colr_header_data += 4;
1278 cielab[1] = 0;
1279 }
1280 cielab[2] = rl; cielab[4] = ra; cielab[6] = rb;
1281 cielab[3] = ol; cielab[5] = oa; cielab[7] = ob;
1282 cielab[8] = il;
1283
1284 jp2->color.icc_profile_buf = (unsigned char*)cielab;
1285 jp2->color.icc_profile_len = 0;
1286 }
1287
1288 jp2->color.jp2_has_colr = 1;
1289 }
1290 else if (jp2->meth == 2) {
1291 /* ICC profile */
1292 OPJ_INT32 it_icc_value = 0;
1293 OPJ_INT32 icc_len = (OPJ_INT32)p_colr_header_size - 3;
1294
1295 jp2->color.icc_profile_len = (OPJ_UINT32)icc_len;
1296 jp2->color.icc_profile_buf = (OPJ_BYTE*) opj_malloc((size_t)icc_len);
1297 if (!jp2->color.icc_profile_buf)
1298 {
1299 jp2->color.icc_profile_len = 0;
1300 return OPJ_FALSE;
1301 }
1302 memset(jp2->color.icc_profile_buf, 0, (size_t)icc_len * sizeof(OPJ_BYTE));
1303
1304 for (it_icc_value = 0; it_icc_value < icc_len; ++it_icc_value)
1305 {
1306 opj_read_bytes(p_colr_header_data,&l_value,1); /* icc values */
1307 ++p_colr_header_data;
1308 jp2->color.icc_profile_buf[it_icc_value] = (OPJ_BYTE) l_value;
1309 }
1310
1311 jp2->color.jp2_has_colr = 1;
1312 }
1313 else if (jp2->meth > 2)
1314 {
1315 /* ISO/IEC 15444-1:2004 (E), Table I.9 ?Legal METH values:
1316 conforming JP2 reader shall ignore the entire Colour Specification box.*/
1317 opj_event_msg(p_manager, EVT_INFO, "COLR BOX meth value is not a regular value (%d), "
1318 "so we will ignore the entire Colour Specification box. \n", jp2->meth);
1319 }
1320 return OPJ_TRUE;
1321 }
1322
opj_jp2_decode(opj_jp2_t * jp2,opj_stream_private_t * p_stream,opj_image_t * p_image,opj_event_mgr_t * p_manager)1323 OPJ_BOOL opj_jp2_decode(opj_jp2_t *jp2,
1324 opj_stream_private_t *p_stream,
1325 opj_image_t* p_image,
1326 opj_event_mgr_t * p_manager)
1327 {
1328 if (!p_image)
1329 return OPJ_FALSE;
1330
1331 /* J2K decoding */
1332 if( ! opj_j2k_decode(jp2->j2k, p_stream, p_image, p_manager) ) {
1333 opj_event_msg(p_manager, EVT_ERROR, "Failed to decode the codestream in the JP2 file\n");
1334 return OPJ_FALSE;
1335 }
1336
1337 if (!jp2->ignore_pclr_cmap_cdef){
1338 if (!opj_jp2_check_color(p_image, &(jp2->color), p_manager)) {
1339 return OPJ_FALSE;
1340 }
1341
1342 /* Set Image Color Space */
1343 if (jp2->enumcs == 16)
1344 p_image->color_space = OPJ_CLRSPC_SRGB;
1345 else if (jp2->enumcs == 17)
1346 p_image->color_space = OPJ_CLRSPC_GRAY;
1347 else if (jp2->enumcs == 18)
1348 p_image->color_space = OPJ_CLRSPC_SYCC;
1349 else if (jp2->enumcs == 24)
1350 p_image->color_space = OPJ_CLRSPC_EYCC;
1351 else
1352 p_image->color_space = OPJ_CLRSPC_UNKNOWN;
1353
1354 /* Apply the color space if needed */
1355 if(jp2->color.jp2_cdef) {
1356 opj_jp2_apply_cdef(p_image, &(jp2->color));
1357 }
1358
1359 if(jp2->color.jp2_pclr) {
1360 /* Part 1, I.5.3.4: Either both or none : */
1361 if( !jp2->color.jp2_pclr->cmap)
1362 opj_jp2_free_pclr(&(jp2->color));
1363 else
1364 if(!p_image->useColorSpace)
1365 opj_jp2_apply_pclr(p_image, &(jp2->color));
1366 }
1367
1368 if(jp2->color.icc_profile_buf) {
1369 p_image->icc_profile_buf = jp2->color.icc_profile_buf;
1370 p_image->icc_profile_len = jp2->color.icc_profile_len;
1371 jp2->color.icc_profile_buf = NULL;
1372 }
1373 }
1374
1375 return OPJ_TRUE;
1376 }
1377
opj_jp2_write_jp2h(opj_jp2_t * jp2,opj_stream_private_t * stream,opj_event_mgr_t * p_manager)1378 OPJ_BOOL opj_jp2_write_jp2h(opj_jp2_t *jp2,
1379 opj_stream_private_t *stream,
1380 opj_event_mgr_t * p_manager
1381 )
1382 {
1383 opj_jp2_img_header_writer_handler_t l_writers [3];
1384 opj_jp2_img_header_writer_handler_t * l_current_writer;
1385
1386 OPJ_INT32 i, l_nb_pass;
1387 /* size of data for super box*/
1388 OPJ_UINT32 l_jp2h_size = 8;
1389 OPJ_BOOL l_result = OPJ_TRUE;
1390
1391 /* to store the data of the super box */
1392 OPJ_BYTE l_jp2h_data [8];
1393
1394 /* preconditions */
1395 assert(stream != 00);
1396 assert(jp2 != 00);
1397 assert(p_manager != 00);
1398
1399 memset(l_writers,0,sizeof(l_writers));
1400
1401 if (jp2->bpc == 255) {
1402 l_nb_pass = 3;
1403 l_writers[0].handler = opj_jp2_write_ihdr;
1404 l_writers[1].handler = opj_jp2_write_bpcc;
1405 l_writers[2].handler = opj_jp2_write_colr;
1406 }
1407 else {
1408 l_nb_pass = 2;
1409 l_writers[0].handler = opj_jp2_write_ihdr;
1410 l_writers[1].handler = opj_jp2_write_colr;
1411 }
1412
1413 /* write box header */
1414 /* write JP2H type */
1415 opj_write_bytes(l_jp2h_data+4,JP2_JP2H,4);
1416
1417 l_current_writer = l_writers;
1418 for (i=0;i<l_nb_pass;++i) {
1419 l_current_writer->m_data = l_current_writer->handler(jp2,&(l_current_writer->m_size));
1420 if (l_current_writer->m_data == 00) {
1421 opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to hold JP2 Header data\n");
1422 l_result = OPJ_FALSE;
1423 break;
1424 }
1425
1426 l_jp2h_size += l_current_writer->m_size;
1427 ++l_current_writer;
1428 }
1429
1430 if (! l_result) {
1431 l_current_writer = l_writers;
1432 for (i=0;i<l_nb_pass;++i) {
1433 if (l_current_writer->m_data != 00) {
1434 opj_free(l_current_writer->m_data );
1435 }
1436 ++l_current_writer;
1437 }
1438
1439 return OPJ_FALSE;
1440 }
1441
1442 /* write super box size */
1443 opj_write_bytes(l_jp2h_data,l_jp2h_size,4);
1444
1445 /* write super box data on stream */
1446 if (opj_stream_write_data(stream,l_jp2h_data,8,p_manager) != 8) {
1447 opj_event_msg(p_manager, EVT_ERROR, "Stream error while writing JP2 Header box\n");
1448 l_result = OPJ_FALSE;
1449 }
1450
1451 if (l_result) {
1452 l_current_writer = l_writers;
1453 for (i=0;i<l_nb_pass;++i) {
1454 if (opj_stream_write_data(stream,l_current_writer->m_data,l_current_writer->m_size,p_manager) != l_current_writer->m_size) {
1455 opj_event_msg(p_manager, EVT_ERROR, "Stream error while writing JP2 Header box\n");
1456 l_result = OPJ_FALSE;
1457 break;
1458 }
1459 ++l_current_writer;
1460 }
1461 }
1462
1463 l_current_writer = l_writers;
1464
1465 /* cleanup */
1466 for (i=0;i<l_nb_pass;++i) {
1467 if (l_current_writer->m_data != 00) {
1468 opj_free(l_current_writer->m_data );
1469 }
1470 ++l_current_writer;
1471 }
1472
1473 return l_result;
1474 }
1475
opj_jp2_write_ftyp(opj_jp2_t * jp2,opj_stream_private_t * cio,opj_event_mgr_t * p_manager)1476 OPJ_BOOL opj_jp2_write_ftyp(opj_jp2_t *jp2,
1477 opj_stream_private_t *cio,
1478 opj_event_mgr_t * p_manager )
1479 {
1480 OPJ_UINT32 i;
1481 OPJ_UINT32 l_ftyp_size = 16 + 4 * jp2->numcl;
1482 OPJ_BYTE * l_ftyp_data, * l_current_data_ptr;
1483 OPJ_BOOL l_result;
1484
1485 /* preconditions */
1486 assert(cio != 00);
1487 assert(jp2 != 00);
1488 assert(p_manager != 00);
1489
1490 l_ftyp_data = (OPJ_BYTE *) opj_malloc(l_ftyp_size);
1491
1492 if (l_ftyp_data == 00) {
1493 opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to handle ftyp data\n");
1494 return OPJ_FALSE;
1495 }
1496
1497 memset(l_ftyp_data,0,l_ftyp_size);
1498
1499 l_current_data_ptr = l_ftyp_data;
1500
1501 opj_write_bytes(l_current_data_ptr, l_ftyp_size,4); /* box size */
1502 l_current_data_ptr += 4;
1503
1504 opj_write_bytes(l_current_data_ptr, JP2_FTYP,4); /* FTYP */
1505 l_current_data_ptr += 4;
1506
1507 opj_write_bytes(l_current_data_ptr, jp2->brand,4); /* BR */
1508 l_current_data_ptr += 4;
1509
1510 opj_write_bytes(l_current_data_ptr, jp2->minversion,4); /* MinV */
1511 l_current_data_ptr += 4;
1512
1513 for (i = 0; i < jp2->numcl; i++) {
1514 opj_write_bytes(l_current_data_ptr, jp2->cl[i],4); /* CL */
1515 }
1516
1517 l_result = (opj_stream_write_data(cio,l_ftyp_data,l_ftyp_size,p_manager) == l_ftyp_size);
1518 if (! l_result)
1519 {
1520 opj_event_msg(p_manager, EVT_ERROR, "Error while writing ftyp data to stream\n");
1521 }
1522
1523 opj_free(l_ftyp_data);
1524
1525 return l_result;
1526 }
1527
opj_jp2_write_jp2c(opj_jp2_t * jp2,opj_stream_private_t * cio,opj_event_mgr_t * p_manager)1528 OPJ_BOOL opj_jp2_write_jp2c(opj_jp2_t *jp2,
1529 opj_stream_private_t *cio,
1530 opj_event_mgr_t * p_manager )
1531 {
1532 OPJ_OFF_T j2k_codestream_exit;
1533 OPJ_BYTE l_data_header [8];
1534
1535 /* preconditions */
1536 assert(jp2 != 00);
1537 assert(cio != 00);
1538 assert(p_manager != 00);
1539 assert(opj_stream_has_seek(cio));
1540
1541 j2k_codestream_exit = opj_stream_tell(cio);
1542 opj_write_bytes(l_data_header,
1543 (OPJ_UINT32) (j2k_codestream_exit - jp2->j2k_codestream_offset),
1544 4); /* size of codestream */
1545 opj_write_bytes(l_data_header + 4,JP2_JP2C,4); /* JP2C */
1546
1547 if (! opj_stream_seek(cio,jp2->j2k_codestream_offset,p_manager)) {
1548 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
1549 return OPJ_FALSE;
1550 }
1551
1552 if (opj_stream_write_data(cio,l_data_header,8,p_manager) != 8) {
1553 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
1554 return OPJ_FALSE;
1555 }
1556
1557 if (! opj_stream_seek(cio,j2k_codestream_exit,p_manager)) {
1558 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
1559 return OPJ_FALSE;
1560 }
1561
1562 return OPJ_TRUE;
1563 }
1564
opj_jp2_write_jp(opj_jp2_t * jp2,opj_stream_private_t * cio,opj_event_mgr_t * p_manager)1565 OPJ_BOOL opj_jp2_write_jp( opj_jp2_t *jp2,
1566 opj_stream_private_t *cio,
1567 opj_event_mgr_t * p_manager )
1568 {
1569 /* 12 bytes will be read */
1570 OPJ_BYTE l_signature_data [12];
1571
1572 /* preconditions */
1573 assert(cio != 00);
1574 assert(jp2 != 00);
1575 assert(p_manager != 00);
1576
1577 /* write box length */
1578 opj_write_bytes(l_signature_data,12,4);
1579 /* writes box type */
1580 opj_write_bytes(l_signature_data+4,JP2_JP,4);
1581 /* writes magic number*/
1582 opj_write_bytes(l_signature_data+8,0x0d0a870a,4);
1583
1584 if (opj_stream_write_data(cio,l_signature_data,12,p_manager) != 12) {
1585 return OPJ_FALSE;
1586 }
1587
1588 return OPJ_TRUE;
1589 }
1590
1591 /* ----------------------------------------------------------------------- */
1592 /* JP2 decoder interface */
1593 /* ----------------------------------------------------------------------- */
1594
opj_jp2_setup_decoder(opj_jp2_t * jp2,opj_dparameters_t * parameters)1595 void opj_jp2_setup_decoder(opj_jp2_t *jp2, opj_dparameters_t *parameters)
1596 {
1597 /* setup the J2K codec */
1598 opj_j2k_setup_decoder(jp2->j2k, parameters);
1599
1600 /* further JP2 initializations go here */
1601 jp2->color.jp2_has_colr = 0;
1602 jp2->ignore_pclr_cmap_cdef = parameters->flags & OPJ_DPARAMETERS_IGNORE_PCLR_CMAP_CDEF_FLAG;
1603 }
1604
1605 /* ----------------------------------------------------------------------- */
1606 /* JP2 encoder interface */
1607 /* ----------------------------------------------------------------------- */
1608
opj_jp2_setup_encoder(opj_jp2_t * jp2,opj_cparameters_t * parameters,opj_image_t * image,opj_event_mgr_t * p_manager)1609 void opj_jp2_setup_encoder( opj_jp2_t *jp2,
1610 opj_cparameters_t *parameters,
1611 opj_image_t *image,
1612 opj_event_mgr_t * p_manager)
1613 {
1614 OPJ_UINT32 i;
1615 OPJ_UINT32 depth_0;
1616 OPJ_UINT32 sign;
1617
1618 if(!jp2 || !parameters || !image)
1619 return;
1620
1621 /* setup the J2K codec */
1622 /* ------------------- */
1623
1624 /* Check if number of components respects standard */
1625 if (image->numcomps < 1 || image->numcomps > 16384) {
1626 opj_event_msg(p_manager, EVT_ERROR, "Invalid number of components specified while setting up JP2 encoder\n");
1627 return;
1628 }
1629
1630 opj_j2k_setup_encoder(jp2->j2k, parameters, image, p_manager );
1631
1632 /* setup the JP2 codec */
1633 /* ------------------- */
1634
1635 /* Profile box */
1636
1637 jp2->brand = JP2_JP2; /* BR */
1638 jp2->minversion = 0; /* MinV */
1639 jp2->numcl = 1;
1640 jp2->cl = (OPJ_UINT32*) opj_malloc(jp2->numcl * sizeof(OPJ_UINT32));
1641 if (!jp2->cl){
1642 jp2->cl = NULL;
1643 opj_event_msg(p_manager, EVT_ERROR, "Not enough memory when setup the JP2 encoder\n");
1644 return;
1645 }
1646 jp2->cl[0] = JP2_JP2; /* CL0 : JP2 */
1647
1648 /* Image Header box */
1649
1650 jp2->numcomps = image->numcomps; /* NC */
1651 jp2->comps = (opj_jp2_comps_t*) opj_malloc(jp2->numcomps * sizeof(opj_jp2_comps_t));
1652 if (!jp2->comps) {
1653 jp2->comps = NULL;
1654 opj_event_msg(p_manager, EVT_ERROR, "Not enough memory when setup the JP2 encoder\n");
1655 return;
1656 }
1657
1658 jp2->h = image->y1 - image->y0; /* HEIGHT */
1659 jp2->w = image->x1 - image->x0; /* WIDTH */
1660 /* BPC */
1661 depth_0 = image->comps[0].prec - 1;
1662 sign = image->comps[0].sgnd;
1663 jp2->bpc = depth_0 + (sign << 7);
1664 for (i = 1; i < image->numcomps; i++) {
1665 OPJ_UINT32 depth = image->comps[i].prec - 1;
1666 sign = image->comps[i].sgnd;
1667 if (depth_0 != depth)
1668 jp2->bpc = 255;
1669 }
1670 jp2->C = 7; /* C : Always 7 */
1671 jp2->UnkC = 0; /* UnkC, colorspace specified in colr box */
1672 jp2->IPR = 0; /* IPR, no intellectual property */
1673
1674 /* BitsPerComponent box */
1675 for (i = 0; i < image->numcomps; i++) {
1676 jp2->comps[i].bpcc = image->comps[i].prec - 1 + (image->comps[i].sgnd << 7);
1677 }
1678
1679 /* Colour Specification box */
1680 if(image->icc_profile_len) {
1681 jp2->meth = 2;
1682 jp2->enumcs = 0;
1683 }
1684 else {
1685 jp2->meth = 1;
1686 if (image->color_space == 1)
1687 jp2->enumcs = 16; /* sRGB as defined by IEC 61966-2-1 */
1688 else if (image->color_space == 2)
1689 jp2->enumcs = 17; /* greyscale */
1690 else if (image->color_space == 3)
1691 jp2->enumcs = 18; /* YUV */
1692 }
1693
1694
1695 jp2->precedence = 0; /* PRECEDENCE */
1696 jp2->approx = 0; /* APPROX */
1697
1698 jp2->jpip_on = parameters->jpip_on;
1699 }
1700
opj_jp2_encode(opj_jp2_t * jp2,opj_stream_private_t * stream,opj_event_mgr_t * p_manager)1701 OPJ_BOOL opj_jp2_encode(opj_jp2_t *jp2,
1702 opj_stream_private_t *stream,
1703 opj_event_mgr_t * p_manager)
1704 {
1705 return opj_j2k_encode(jp2->j2k, stream, p_manager);
1706 }
1707
opj_jp2_end_decompress(opj_jp2_t * jp2,opj_stream_private_t * cio,opj_event_mgr_t * p_manager)1708 OPJ_BOOL opj_jp2_end_decompress(opj_jp2_t *jp2,
1709 opj_stream_private_t *cio,
1710 opj_event_mgr_t * p_manager
1711 )
1712 {
1713 /* preconditions */
1714 assert(jp2 != 00);
1715 assert(cio != 00);
1716 assert(p_manager != 00);
1717
1718 /* customization of the end encoding */
1719 opj_jp2_setup_end_header_reading(jp2);
1720
1721 /* write header */
1722 if (! opj_jp2_exec (jp2,jp2->m_procedure_list,cio,p_manager)) {
1723 return OPJ_FALSE;
1724 }
1725
1726 return opj_j2k_end_decompress(jp2->j2k, cio, p_manager);
1727 }
1728
opj_jp2_end_compress(opj_jp2_t * jp2,opj_stream_private_t * cio,opj_event_mgr_t * p_manager)1729 OPJ_BOOL opj_jp2_end_compress( opj_jp2_t *jp2,
1730 opj_stream_private_t *cio,
1731 opj_event_mgr_t * p_manager
1732 )
1733 {
1734 /* preconditions */
1735 assert(jp2 != 00);
1736 assert(cio != 00);
1737 assert(p_manager != 00);
1738
1739 /* customization of the end encoding */
1740 opj_jp2_setup_end_header_writing(jp2);
1741
1742 if (! opj_j2k_end_compress(jp2->j2k,cio,p_manager)) {
1743 return OPJ_FALSE;
1744 }
1745
1746 /* write header */
1747 return opj_jp2_exec(jp2,jp2->m_procedure_list,cio,p_manager);
1748 }
1749
opj_jp2_setup_end_header_writing(opj_jp2_t * jp2)1750 void opj_jp2_setup_end_header_writing (opj_jp2_t *jp2)
1751 {
1752 /* preconditions */
1753 assert(jp2 != 00);
1754
1755 #ifdef USE_JPIP
1756 if( jp2->jpip_on )
1757 opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jpip_write_iptr );
1758 #endif
1759 opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_write_jp2c );
1760 /* DEVELOPER CORNER, add your custom procedures */
1761 #ifdef USE_JPIP
1762 if( jp2->jpip_on )
1763 {
1764 opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jpip_write_cidx );
1765 opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jpip_write_fidx );
1766 }
1767 #endif
1768 }
1769
opj_jp2_setup_end_header_reading(opj_jp2_t * jp2)1770 void opj_jp2_setup_end_header_reading (opj_jp2_t *jp2)
1771 {
1772 /* preconditions */
1773 assert(jp2 != 00);
1774 opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_read_header_procedure );
1775 /* DEVELOPER CORNER, add your custom procedures */
1776 }
1777
opj_jp2_default_validation(opj_jp2_t * jp2,opj_stream_private_t * cio,opj_event_mgr_t * p_manager)1778 OPJ_BOOL opj_jp2_default_validation ( opj_jp2_t * jp2,
1779 opj_stream_private_t *cio,
1780 opj_event_mgr_t * p_manager
1781 )
1782 {
1783 OPJ_BOOL l_is_valid = OPJ_TRUE;
1784 OPJ_UINT32 i;
1785
1786 /* preconditions */
1787 assert(jp2 != 00);
1788 assert(cio != 00);
1789 assert(p_manager != 00);
1790
1791 /* JPEG2000 codec validation */
1792
1793 /* STATE checking */
1794 /* make sure the state is at 0 */
1795 l_is_valid &= (jp2->jp2_state == JP2_STATE_NONE);
1796
1797 /* make sure not reading a jp2h ???? WEIRD */
1798 l_is_valid &= (jp2->jp2_img_state == JP2_IMG_STATE_NONE);
1799
1800 /* POINTER validation */
1801 /* make sure a j2k codec is present */
1802 l_is_valid &= (jp2->j2k != 00);
1803
1804 /* make sure a procedure list is present */
1805 l_is_valid &= (jp2->m_procedure_list != 00);
1806
1807 /* make sure a validation list is present */
1808 l_is_valid &= (jp2->m_validation_list != 00);
1809
1810 /* PARAMETER VALIDATION */
1811 /* number of components */
1812 l_is_valid &= (jp2->numcl > 0);
1813 /* width */
1814 l_is_valid &= (jp2->h > 0);
1815 /* height */
1816 l_is_valid &= (jp2->w > 0);
1817 /* precision */
1818 for (i = 0; i < jp2->numcomps; ++i) {
1819 l_is_valid &= (jp2->comps[i].bpcc > 0);
1820 }
1821
1822 /* METH */
1823 l_is_valid &= ((jp2->meth > 0) && (jp2->meth < 3));
1824
1825 /* stream validation */
1826 /* back and forth is needed */
1827 l_is_valid &= opj_stream_has_seek(cio);
1828
1829 return l_is_valid;
1830 }
1831
opj_jp2_read_header_procedure(opj_jp2_t * jp2,opj_stream_private_t * stream,opj_event_mgr_t * p_manager)1832 OPJ_BOOL opj_jp2_read_header_procedure( opj_jp2_t *jp2,
1833 opj_stream_private_t *stream,
1834 opj_event_mgr_t * p_manager
1835 )
1836 {
1837 opj_jp2_box_t box;
1838 OPJ_UINT32 l_nb_bytes_read;
1839 const opj_jp2_header_handler_t * l_current_handler;
1840 OPJ_UINT32 l_last_data_size = OPJ_BOX_SIZE;
1841 OPJ_UINT32 l_current_data_size;
1842 OPJ_BYTE * l_current_data = 00;
1843
1844 /* preconditions */
1845 assert(stream != 00);
1846 assert(jp2 != 00);
1847 assert(p_manager != 00);
1848
1849 l_current_data = (OPJ_BYTE*)opj_malloc(l_last_data_size);
1850
1851 if (l_current_data == 00) {
1852 opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to handle jpeg2000 file header\n");
1853 return OPJ_FALSE;
1854 }
1855 memset(l_current_data, 0 , l_last_data_size);
1856
1857 while (opj_jp2_read_boxhdr(&box,&l_nb_bytes_read,stream,p_manager)) {
1858 /* is it the codestream box ? */
1859 if (box.type == JP2_JP2C) {
1860 if (jp2->jp2_state & JP2_STATE_HEADER) {
1861 jp2->jp2_state |= JP2_STATE_CODESTREAM;
1862 opj_free(l_current_data);
1863 return OPJ_TRUE;
1864 }
1865 else {
1866 opj_event_msg(p_manager, EVT_ERROR, "bad placed jpeg codestream\n");
1867 opj_free(l_current_data);
1868 return OPJ_FALSE;
1869 }
1870 }
1871 else if (box.length == 0) {
1872 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
1873 opj_free(l_current_data);
1874 return OPJ_FALSE;
1875 }
1876 /* testcase 1851.pdf.SIGSEGV.ce9.948 */
1877 /* testcase K-5787457125613568 */
1878 else if (box.length < l_nb_bytes_read || box.length > opj_stream_get_number_byte_left(stream)) {
1879 opj_event_msg(p_manager, EVT_ERROR, "invalid box size %d (%x)\n", box.length, box.type);
1880 opj_free(l_current_data);
1881 return OPJ_FALSE;
1882 }
1883
1884 l_current_handler = opj_jp2_find_handler(box.type);
1885 l_current_data_size = box.length - l_nb_bytes_read;
1886
1887 if (l_current_handler != 00) {
1888 if (l_current_data_size > l_last_data_size) {
1889 OPJ_BYTE* new_current_data = (OPJ_BYTE*)opj_realloc(l_current_data,l_current_data_size);
1890 if (!new_current_data) {
1891 opj_free(l_current_data);
1892 opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to handle jpeg2000 box\n");
1893 return OPJ_FALSE;
1894 }
1895 l_current_data = new_current_data;
1896 l_last_data_size = l_current_data_size;
1897 }
1898
1899 l_nb_bytes_read = (OPJ_UINT32)opj_stream_read_data(stream,l_current_data,l_current_data_size,p_manager);
1900 if (l_nb_bytes_read != l_current_data_size) {
1901 opj_event_msg(p_manager, EVT_ERROR, "Problem with reading JPEG2000 box, stream error\n");
1902 opj_free(l_current_data);
1903 return OPJ_FALSE;
1904 }
1905
1906 if (! l_current_handler->handler(jp2,l_current_data,l_current_data_size,p_manager)) {
1907 opj_free(l_current_data);
1908 return OPJ_FALSE;
1909 }
1910 }
1911 else {
1912 jp2->jp2_state |= JP2_STATE_UNKNOWN;
1913 if (opj_stream_skip(stream,l_current_data_size,p_manager) != l_current_data_size) {
1914 opj_event_msg(p_manager, EVT_ERROR, "Problem with skipping JPEG2000 box, stream error\n");
1915 opj_free(l_current_data);
1916 return OPJ_FALSE;
1917 }
1918 }
1919 }
1920
1921 opj_free(l_current_data);
1922
1923 return OPJ_TRUE;
1924 }
1925
1926 /**
1927 * Excutes the given procedures on the given codec.
1928 *
1929 * @param p_procedure_list the list of procedures to execute
1930 * @param jp2 the jpeg2000 file codec to execute the procedures on.
1931 * @param stream the stream to execute the procedures on.
1932 * @param p_manager the user manager.
1933 *
1934 * @return true if all the procedures were successfully executed.
1935 */
opj_jp2_exec(opj_jp2_t * jp2,opj_procedure_list_t * p_procedure_list,opj_stream_private_t * stream,opj_event_mgr_t * p_manager)1936 static OPJ_BOOL opj_jp2_exec ( opj_jp2_t * jp2,
1937 opj_procedure_list_t * p_procedure_list,
1938 opj_stream_private_t *stream,
1939 opj_event_mgr_t * p_manager
1940 )
1941
1942 {
1943 OPJ_BOOL (** l_procedure) (opj_jp2_t * jp2, opj_stream_private_t *, opj_event_mgr_t *) = 00;
1944 OPJ_BOOL l_result = OPJ_TRUE;
1945 OPJ_UINT32 l_nb_proc, i;
1946
1947 /* preconditions */
1948 assert(p_procedure_list != 00);
1949 assert(jp2 != 00);
1950 assert(stream != 00);
1951 assert(p_manager != 00);
1952
1953 l_nb_proc = opj_procedure_list_get_nb_procedures(p_procedure_list);
1954 l_procedure = (OPJ_BOOL (**) (opj_jp2_t * jp2, opj_stream_private_t *, opj_event_mgr_t *)) opj_procedure_list_get_first_procedure(p_procedure_list);
1955
1956 for (i=0;i<l_nb_proc;++i) {
1957 l_result = l_result && (*l_procedure) (jp2,stream,p_manager);
1958 ++l_procedure;
1959 }
1960
1961 /* and clear the procedure list at the end. */
1962 opj_procedure_list_clear(p_procedure_list);
1963 return l_result;
1964 }
1965
opj_jp2_start_compress(opj_jp2_t * jp2,opj_stream_private_t * stream,opj_image_t * p_image,opj_event_mgr_t * p_manager)1966 OPJ_BOOL opj_jp2_start_compress(opj_jp2_t *jp2,
1967 opj_stream_private_t *stream,
1968 opj_image_t * p_image,
1969 opj_event_mgr_t * p_manager
1970 )
1971 {
1972 /* preconditions */
1973 assert(jp2 != 00);
1974 assert(stream != 00);
1975 assert(p_manager != 00);
1976
1977 /* customization of the validation */
1978 opj_jp2_setup_encoding_validation (jp2);
1979
1980 /* validation of the parameters codec */
1981 if (! opj_jp2_exec(jp2,jp2->m_validation_list,stream,p_manager)) {
1982 return OPJ_FALSE;
1983 }
1984
1985 /* customization of the encoding */
1986 opj_jp2_setup_header_writing(jp2);
1987
1988 /* write header */
1989 if (! opj_jp2_exec (jp2,jp2->m_procedure_list,stream,p_manager)) {
1990 return OPJ_FALSE;
1991 }
1992
1993 return opj_j2k_start_compress(jp2->j2k,stream,p_image,p_manager);
1994 }
1995
opj_jp2_find_handler(OPJ_UINT32 p_id)1996 const opj_jp2_header_handler_t * opj_jp2_find_handler (OPJ_UINT32 p_id)
1997 {
1998 OPJ_UINT32 i, l_handler_size = sizeof(jp2_header) / sizeof(opj_jp2_header_handler_t);
1999
2000 for (i=0;i<l_handler_size;++i) {
2001 if (jp2_header[i].id == p_id) {
2002 return &jp2_header[i];
2003 }
2004 }
2005 return NULL;
2006 }
2007
2008 /**
2009 * Finds the image execution function related to the given box id.
2010 *
2011 * @param p_id the id of the handler to fetch.
2012 *
2013 * @return the given handler or 00 if it could not be found.
2014 */
opj_jp2_img_find_handler(OPJ_UINT32 p_id)2015 static const opj_jp2_header_handler_t * opj_jp2_img_find_handler (OPJ_UINT32 p_id)
2016 {
2017 OPJ_UINT32 i, l_handler_size = sizeof(jp2_img_header) / sizeof(opj_jp2_header_handler_t);
2018 for (i=0;i<l_handler_size;++i)
2019 {
2020 if (jp2_img_header[i].id == p_id) {
2021 return &jp2_img_header[i];
2022 }
2023 }
2024
2025 return NULL;
2026 }
2027
2028 /**
2029 * Reads a jpeg2000 file signature box.
2030 *
2031 * @param p_header_data the data contained in the signature box.
2032 * @param jp2 the jpeg2000 file codec.
2033 * @param p_header_size the size of the data contained in the signature box.
2034 * @param p_manager the user event manager.
2035 *
2036 * @return true if the file signature box is valid.
2037 */
opj_jp2_read_jp(opj_jp2_t * jp2,OPJ_BYTE * p_header_data,OPJ_UINT32 p_header_size,opj_event_mgr_t * p_manager)2038 static OPJ_BOOL opj_jp2_read_jp(opj_jp2_t *jp2,
2039 OPJ_BYTE * p_header_data,
2040 OPJ_UINT32 p_header_size,
2041 opj_event_mgr_t * p_manager
2042 )
2043
2044 {
2045 OPJ_UINT32 l_magic_number;
2046
2047 /* preconditions */
2048 assert(p_header_data != 00);
2049 assert(jp2 != 00);
2050 assert(p_manager != 00);
2051
2052 if (jp2->jp2_state != JP2_STATE_NONE) {
2053 opj_event_msg(p_manager, EVT_ERROR, "The signature box must be the first box in the file.\n");
2054 return OPJ_FALSE;
2055 }
2056
2057 /* assure length of data is correct (4 -> magic number) */
2058 if (p_header_size != 4) {
2059 opj_event_msg(p_manager, EVT_ERROR, "Error with JP signature Box size\n");
2060 return OPJ_FALSE;
2061 }
2062
2063 /* rearrange data */
2064 opj_read_bytes(p_header_data,&l_magic_number,4);
2065 if (l_magic_number != 0x0d0a870a ) {
2066 opj_event_msg(p_manager, EVT_ERROR, "Error with JP Signature : bad magic number\n");
2067 return OPJ_FALSE;
2068 }
2069
2070 jp2->jp2_state |= JP2_STATE_SIGNATURE;
2071
2072 return OPJ_TRUE;
2073 }
2074
2075 /**
2076 * Reads a a FTYP box - File type box
2077 *
2078 * @param p_header_data the data contained in the FTYP box.
2079 * @param jp2 the jpeg2000 file codec.
2080 * @param p_header_size the size of the data contained in the FTYP box.
2081 * @param p_manager the user event manager.
2082 *
2083 * @return true if the FTYP box is valid.
2084 */
opj_jp2_read_ftyp(opj_jp2_t * jp2,OPJ_BYTE * p_header_data,OPJ_UINT32 p_header_size,opj_event_mgr_t * p_manager)2085 static OPJ_BOOL opj_jp2_read_ftyp( opj_jp2_t *jp2,
2086 OPJ_BYTE * p_header_data,
2087 OPJ_UINT32 p_header_size,
2088 opj_event_mgr_t * p_manager
2089 )
2090 {
2091 OPJ_UINT32 i, l_remaining_bytes;
2092
2093 /* preconditions */
2094 assert(p_header_data != 00);
2095 assert(jp2 != 00);
2096 assert(p_manager != 00);
2097
2098 if (jp2->jp2_state != JP2_STATE_SIGNATURE) {
2099 opj_event_msg(p_manager, EVT_ERROR, "The ftyp box must be the second box in the file.\n");
2100 return OPJ_FALSE;
2101 }
2102
2103 /* assure length of data is correct */
2104 if (p_header_size < 8) {
2105 opj_event_msg(p_manager, EVT_ERROR, "Error with FTYP signature Box size\n");
2106 return OPJ_FALSE;
2107 }
2108
2109 opj_read_bytes(p_header_data,&jp2->brand,4); /* BR */
2110 p_header_data += 4;
2111
2112 opj_read_bytes(p_header_data,&jp2->minversion,4); /* MinV */
2113 p_header_data += 4;
2114
2115 l_remaining_bytes = p_header_size - 8;
2116
2117 /* the number of remaining bytes should be a multiple of 4 */
2118 if ((l_remaining_bytes & 0x3) != 0) {
2119 opj_event_msg(p_manager, EVT_ERROR, "Error with FTYP signature Box size\n");
2120 return OPJ_FALSE;
2121 }
2122
2123 /* div by 4 */
2124 jp2->numcl = l_remaining_bytes >> 2;
2125 if (jp2->numcl) {
2126 jp2->cl = (OPJ_UINT32 *) opj_malloc(jp2->numcl * sizeof(OPJ_UINT32));
2127 if (jp2->cl == 00) {
2128 opj_event_msg(p_manager, EVT_ERROR, "Not enough memory with FTYP Box\n");
2129 return OPJ_FALSE;
2130 }
2131 memset(jp2->cl,0,jp2->numcl * sizeof(OPJ_UINT32));
2132 }
2133
2134 for (i = 0; i < jp2->numcl; ++i)
2135 {
2136 opj_read_bytes(p_header_data,&jp2->cl[i],4); /* CLi */
2137 p_header_data += 4;
2138 }
2139
2140 jp2->jp2_state |= JP2_STATE_FILE_TYPE;
2141
2142 return OPJ_TRUE;
2143 }
2144
opj_jp2_skip_jp2c(opj_jp2_t * jp2,opj_stream_private_t * stream,opj_event_mgr_t * p_manager)2145 OPJ_BOOL opj_jp2_skip_jp2c( opj_jp2_t *jp2,
2146 opj_stream_private_t *stream,
2147 opj_event_mgr_t * p_manager )
2148 {
2149 /* preconditions */
2150 assert(jp2 != 00);
2151 assert(stream != 00);
2152 assert(p_manager != 00);
2153
2154 jp2->j2k_codestream_offset = opj_stream_tell(stream);
2155
2156 if (opj_stream_skip(stream,8,p_manager) != 8) {
2157 return OPJ_FALSE;
2158 }
2159
2160 return OPJ_TRUE;
2161 }
2162
opj_jpip_skip_iptr(opj_jp2_t * jp2,opj_stream_private_t * stream,opj_event_mgr_t * p_manager)2163 static OPJ_BOOL opj_jpip_skip_iptr( opj_jp2_t *jp2,
2164 opj_stream_private_t *stream,
2165 opj_event_mgr_t * p_manager )
2166 {
2167 /* preconditions */
2168 assert(jp2 != 00);
2169 assert(stream != 00);
2170 assert(p_manager != 00);
2171
2172 jp2->jpip_iptr_offset = opj_stream_tell(stream);
2173
2174 if (opj_stream_skip(stream,24,p_manager) != 24) {
2175 return OPJ_FALSE;
2176 }
2177
2178 return OPJ_TRUE;
2179 }
2180
2181 /**
2182 * Reads the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box).
2183 *
2184 * @param p_header_data the data contained in the file header box.
2185 * @param jp2 the jpeg2000 file codec.
2186 * @param p_header_size the size of the data contained in the file header box.
2187 * @param p_manager the user event manager.
2188 *
2189 * @return true if the JP2 Header box was successfully reconized.
2190 */
opj_jp2_read_jp2h(opj_jp2_t * jp2,OPJ_BYTE * p_header_data,OPJ_UINT32 p_header_size,opj_event_mgr_t * p_manager)2191 static OPJ_BOOL opj_jp2_read_jp2h( opj_jp2_t *jp2,
2192 OPJ_BYTE *p_header_data,
2193 OPJ_UINT32 p_header_size,
2194 opj_event_mgr_t * p_manager
2195 )
2196 {
2197 OPJ_UINT32 l_box_size=0, l_current_data_size = 0;
2198 opj_jp2_box_t box;
2199 const opj_jp2_header_handler_t * l_current_handler;
2200
2201 /* preconditions */
2202 assert(p_header_data != 00);
2203 assert(jp2 != 00);
2204 assert(p_manager != 00);
2205
2206 /* make sure the box is well placed */
2207 if ((jp2->jp2_state & JP2_STATE_FILE_TYPE) != JP2_STATE_FILE_TYPE ) {
2208 opj_event_msg(p_manager, EVT_ERROR, "The box must be the first box in the file.\n");
2209 return OPJ_FALSE;
2210 }
2211
2212 jp2->jp2_img_state = JP2_IMG_STATE_NONE;
2213
2214 /* iterate while remaining data */
2215 while (p_header_size > 0) {
2216
2217 if (! opj_jp2_read_boxhdr_char(&box,p_header_data,&l_box_size,p_header_size, p_manager)) {
2218 opj_event_msg(p_manager, EVT_ERROR, "Stream error while reading JP2 Header box\n");
2219 return OPJ_FALSE;
2220 }
2221
2222 if (box.length > p_header_size) {
2223 opj_event_msg(p_manager, EVT_ERROR, "Stream error while reading JP2 Header box: box length is inconsistent.\n");
2224 return OPJ_FALSE;
2225 }
2226
2227 l_current_handler = opj_jp2_img_find_handler(box.type);
2228 //BUGID:0055999
2229 //test file: fuzz-signal_sigsegv_6b88de_1123_2509.pdf
2230 if (box.length < l_box_size) return OPJ_FALSE;
2231 l_current_data_size = box.length - l_box_size;
2232 p_header_data += l_box_size;
2233
2234 if (l_current_handler != 00) {
2235 if (! l_current_handler->handler(jp2,p_header_data,l_current_data_size,p_manager)) {
2236 return OPJ_FALSE;
2237 }
2238 }
2239 else {
2240 jp2->jp2_img_state |= JP2_IMG_STATE_UNKNOWN;
2241 }
2242
2243 p_header_data += l_current_data_size;
2244 p_header_size -= box.length;
2245 }
2246
2247 jp2->jp2_state |= JP2_STATE_HEADER;
2248
2249 return OPJ_TRUE;
2250 }
2251
opj_jp2_read_boxhdr_char(opj_jp2_box_t * box,OPJ_BYTE * p_data,OPJ_UINT32 * p_number_bytes_read,OPJ_UINT32 p_box_max_size,opj_event_mgr_t * p_manager)2252 OPJ_BOOL opj_jp2_read_boxhdr_char( opj_jp2_box_t *box,
2253 OPJ_BYTE * p_data,
2254 OPJ_UINT32 * p_number_bytes_read,
2255 OPJ_UINT32 p_box_max_size,
2256 opj_event_mgr_t * p_manager
2257 )
2258 {
2259 OPJ_UINT32 l_value;
2260
2261 /* preconditions */
2262 assert(p_data != 00);
2263 assert(box != 00);
2264 assert(p_number_bytes_read != 00);
2265 assert(p_manager != 00);
2266
2267 if (p_box_max_size < 8) {
2268 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of less than 8 bytes\n");
2269 return OPJ_FALSE;
2270 }
2271
2272 /* process read data */
2273 opj_read_bytes(p_data, &l_value, 4);
2274 p_data += 4;
2275 box->length = (OPJ_UINT32)(l_value);
2276
2277 opj_read_bytes(p_data, &l_value, 4);
2278 p_data += 4;
2279 box->type = (OPJ_UINT32)(l_value);
2280
2281 *p_number_bytes_read = 8;
2282
2283 /* do we have a "special very large box ?" */
2284 /* read then the XLBox */
2285 if (box->length == 1) {
2286 OPJ_UINT32 l_xl_part_size;
2287
2288 if (p_box_max_size < 16) {
2289 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle XL box of less than 16 bytes\n");
2290 return OPJ_FALSE;
2291 }
2292
2293 opj_read_bytes(p_data,&l_xl_part_size, 4);
2294 p_data += 4;
2295 *p_number_bytes_read += 4;
2296
2297 if (l_xl_part_size != 0) {
2298 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box sizes higher than 2^32\n");
2299 return OPJ_FALSE;
2300 }
2301
2302 opj_read_bytes(p_data, &l_value, 4);
2303 *p_number_bytes_read += 4;
2304 box->length = (OPJ_UINT32)(l_value);
2305
2306 if (box->length == 0) {
2307 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
2308 return OPJ_FALSE;
2309 }
2310 }
2311 else if (box->length == 0) {
2312 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
2313 return OPJ_FALSE;
2314 }
2315
2316 return OPJ_TRUE;
2317 }
2318
opj_jp2_read_header(opj_stream_private_t * p_stream,opj_jp2_t * jp2,opj_image_t ** p_image,opj_event_mgr_t * p_manager)2319 OPJ_BOOL opj_jp2_read_header( opj_stream_private_t *p_stream,
2320 opj_jp2_t *jp2,
2321 opj_image_t ** p_image,
2322 opj_event_mgr_t * p_manager
2323 )
2324 {
2325 /* preconditions */
2326 assert(jp2 != 00);
2327 assert(p_stream != 00);
2328 assert(p_manager != 00);
2329
2330 /* customization of the validation */
2331 opj_jp2_setup_decoding_validation (jp2);
2332
2333 /* customization of the encoding */
2334 opj_jp2_setup_header_reading(jp2);
2335
2336 /* validation of the parameters codec */
2337 if (! opj_jp2_exec(jp2,jp2->m_validation_list,p_stream,p_manager)) {
2338 return OPJ_FALSE;
2339 }
2340
2341 /* read header */
2342 if (! opj_jp2_exec (jp2,jp2->m_procedure_list,p_stream,p_manager)) {
2343 return OPJ_FALSE;
2344 }
2345
2346 return opj_j2k_read_header( p_stream,
2347 jp2->j2k,
2348 p_image,
2349 p_manager);
2350 }
2351
opj_jp2_setup_encoding_validation(opj_jp2_t * jp2)2352 void opj_jp2_setup_encoding_validation (opj_jp2_t *jp2)
2353 {
2354 /* preconditions */
2355 assert(jp2 != 00);
2356
2357 opj_procedure_list_add_procedure(jp2->m_validation_list, (opj_procedure)opj_jp2_default_validation);
2358 /* DEVELOPER CORNER, add your custom validation procedure */
2359 }
2360
opj_jp2_setup_decoding_validation(opj_jp2_t * jp2)2361 void opj_jp2_setup_decoding_validation (opj_jp2_t *jp2)
2362 {
2363 /* preconditions */
2364 assert(jp2 != 00);
2365 /* DEVELOPER CORNER, add your custom validation procedure */
2366 }
2367
opj_jp2_setup_header_writing(opj_jp2_t * jp2)2368 void opj_jp2_setup_header_writing (opj_jp2_t *jp2)
2369 {
2370 /* preconditions */
2371 assert(jp2 != 00);
2372
2373 opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_write_jp );
2374 opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_write_ftyp );
2375 opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_write_jp2h );
2376 if( jp2->jpip_on )
2377 opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jpip_skip_iptr );
2378 opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_skip_jp2c );
2379
2380 /* DEVELOPER CORNER, insert your custom procedures */
2381
2382 }
2383
opj_jp2_setup_header_reading(opj_jp2_t * jp2)2384 void opj_jp2_setup_header_reading (opj_jp2_t *jp2)
2385 {
2386 /* preconditions */
2387 assert(jp2 != 00);
2388
2389 opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_read_header_procedure );
2390 /* DEVELOPER CORNER, add your custom procedures */
2391 }
2392
opj_jp2_read_tile_header(opj_jp2_t * p_jp2,OPJ_UINT32 * p_tile_index,OPJ_UINT32 * p_data_size,OPJ_INT32 * p_tile_x0,OPJ_INT32 * p_tile_y0,OPJ_INT32 * p_tile_x1,OPJ_INT32 * p_tile_y1,OPJ_UINT32 * p_nb_comps,OPJ_BOOL * p_go_on,opj_stream_private_t * p_stream,opj_event_mgr_t * p_manager)2393 OPJ_BOOL opj_jp2_read_tile_header ( opj_jp2_t * p_jp2,
2394 OPJ_UINT32 * p_tile_index,
2395 OPJ_UINT32 * p_data_size,
2396 OPJ_INT32 * p_tile_x0,
2397 OPJ_INT32 * p_tile_y0,
2398 OPJ_INT32 * p_tile_x1,
2399 OPJ_INT32 * p_tile_y1,
2400 OPJ_UINT32 * p_nb_comps,
2401 OPJ_BOOL * p_go_on,
2402 opj_stream_private_t *p_stream,
2403 opj_event_mgr_t * p_manager
2404 )
2405 {
2406 return opj_j2k_read_tile_header(p_jp2->j2k,
2407 p_tile_index,
2408 p_data_size,
2409 p_tile_x0, p_tile_y0,
2410 p_tile_x1, p_tile_y1,
2411 p_nb_comps,
2412 p_go_on,
2413 p_stream,
2414 p_manager);
2415 }
2416
opj_jp2_write_tile(opj_jp2_t * p_jp2,OPJ_UINT32 p_tile_index,OPJ_BYTE * p_data,OPJ_UINT32 p_data_size,opj_stream_private_t * p_stream,opj_event_mgr_t * p_manager)2417 OPJ_BOOL opj_jp2_write_tile ( opj_jp2_t *p_jp2,
2418 OPJ_UINT32 p_tile_index,
2419 OPJ_BYTE * p_data,
2420 OPJ_UINT32 p_data_size,
2421 opj_stream_private_t *p_stream,
2422 opj_event_mgr_t * p_manager
2423 )
2424
2425 {
2426 return opj_j2k_write_tile (p_jp2->j2k,p_tile_index,p_data,p_data_size,p_stream,p_manager);
2427 }
2428
opj_jp2_decode_tile(opj_jp2_t * p_jp2,OPJ_UINT32 p_tile_index,OPJ_BYTE * p_data,OPJ_UINT32 p_data_size,opj_stream_private_t * p_stream,opj_event_mgr_t * p_manager)2429 OPJ_BOOL opj_jp2_decode_tile ( opj_jp2_t * p_jp2,
2430 OPJ_UINT32 p_tile_index,
2431 OPJ_BYTE * p_data,
2432 OPJ_UINT32 p_data_size,
2433 opj_stream_private_t *p_stream,
2434 opj_event_mgr_t * p_manager
2435 )
2436 {
2437 return opj_j2k_decode_tile (p_jp2->j2k,p_tile_index,p_data,p_data_size,p_stream,p_manager);
2438 }
2439
opj_jp2_destroy(opj_jp2_t * jp2)2440 void opj_jp2_destroy(opj_jp2_t *jp2)
2441 {
2442 if (jp2) {
2443 /* destroy the J2K codec */
2444 opj_j2k_destroy(jp2->j2k);
2445 jp2->j2k = 00;
2446
2447 if (jp2->comps) {
2448 opj_free(jp2->comps);
2449 jp2->comps = 00;
2450 }
2451
2452 if (jp2->cl) {
2453 opj_free(jp2->cl);
2454 jp2->cl = 00;
2455 }
2456
2457 if (jp2->color.icc_profile_buf) {
2458 opj_free(jp2->color.icc_profile_buf);
2459 jp2->color.icc_profile_buf = 00;
2460 }
2461
2462 if (jp2->color.jp2_cdef) {
2463 if (jp2->color.jp2_cdef->info) {
2464 opj_free(jp2->color.jp2_cdef->info);
2465 jp2->color.jp2_cdef->info = NULL;
2466 }
2467
2468 opj_free(jp2->color.jp2_cdef);
2469 jp2->color.jp2_cdef = 00;
2470 }
2471
2472 if (jp2->color.jp2_pclr) {
2473 if (jp2->color.jp2_pclr->cmap) {
2474 opj_free(jp2->color.jp2_pclr->cmap);
2475 jp2->color.jp2_pclr->cmap = NULL;
2476 }
2477 if (jp2->color.jp2_pclr->channel_sign) {
2478 opj_free(jp2->color.jp2_pclr->channel_sign);
2479 jp2->color.jp2_pclr->channel_sign = NULL;
2480 }
2481 if (jp2->color.jp2_pclr->channel_size) {
2482 opj_free(jp2->color.jp2_pclr->channel_size);
2483 jp2->color.jp2_pclr->channel_size = NULL;
2484 }
2485 if (jp2->color.jp2_pclr->entries) {
2486 opj_free(jp2->color.jp2_pclr->entries);
2487 jp2->color.jp2_pclr->entries = NULL;
2488 }
2489
2490 opj_free(jp2->color.jp2_pclr);
2491 jp2->color.jp2_pclr = 00;
2492 }
2493
2494 if (jp2->m_validation_list) {
2495 opj_procedure_list_destroy(jp2->m_validation_list);
2496 jp2->m_validation_list = 00;
2497 }
2498
2499 if (jp2->m_procedure_list) {
2500 opj_procedure_list_destroy(jp2->m_procedure_list);
2501 jp2->m_procedure_list = 00;
2502 }
2503
2504 opj_free(jp2);
2505 }
2506 }
2507
opj_jp2_set_decode_area(opj_jp2_t * p_jp2,opj_image_t * p_image,OPJ_INT32 p_start_x,OPJ_INT32 p_start_y,OPJ_INT32 p_end_x,OPJ_INT32 p_end_y,opj_event_mgr_t * p_manager)2508 OPJ_BOOL opj_jp2_set_decode_area( opj_jp2_t *p_jp2,
2509 opj_image_t* p_image,
2510 OPJ_INT32 p_start_x, OPJ_INT32 p_start_y,
2511 OPJ_INT32 p_end_x, OPJ_INT32 p_end_y,
2512 opj_event_mgr_t * p_manager
2513 )
2514 {
2515 return opj_j2k_set_decode_area(p_jp2->j2k, p_image, p_start_x, p_start_y, p_end_x, p_end_y, p_manager);
2516 }
2517
opj_jp2_get_tile(opj_jp2_t * p_jp2,opj_stream_private_t * p_stream,opj_image_t * p_image,opj_event_mgr_t * p_manager,OPJ_UINT32 tile_index)2518 OPJ_BOOL opj_jp2_get_tile( opj_jp2_t *p_jp2,
2519 opj_stream_private_t *p_stream,
2520 opj_image_t* p_image,
2521 opj_event_mgr_t * p_manager,
2522 OPJ_UINT32 tile_index
2523 )
2524 {
2525 if (!p_image)
2526 return OPJ_FALSE;
2527
2528 opj_event_msg(p_manager, EVT_WARNING, "JP2 box which are after the codestream will not be read by this function.\n");
2529
2530 if (! opj_j2k_get_tile(p_jp2->j2k, p_stream, p_image, p_manager, tile_index) ){
2531 opj_event_msg(p_manager, EVT_ERROR, "Failed to decode the codestream in the JP2 file\n");
2532 return OPJ_FALSE;
2533 }
2534
2535 if (!opj_jp2_check_color(p_image, &(p_jp2->color), p_manager)) {
2536 return OPJ_FALSE;
2537 }
2538
2539 /* Set Image Color Space */
2540 if (p_jp2->enumcs == 16)
2541 p_image->color_space = OPJ_CLRSPC_SRGB;
2542 else if (p_jp2->enumcs == 17)
2543 p_image->color_space = OPJ_CLRSPC_GRAY;
2544 else if (p_jp2->enumcs == 18)
2545 p_image->color_space = OPJ_CLRSPC_SYCC;
2546 else
2547 p_image->color_space = OPJ_CLRSPC_UNKNOWN;
2548
2549 /* Apply the color space if needed */
2550 if(p_jp2->color.jp2_cdef) {
2551 opj_jp2_apply_cdef(p_image, &(p_jp2->color));
2552 }
2553
2554 if(p_jp2->color.jp2_pclr) {
2555 /* Part 1, I.5.3.4: Either both or none : */
2556 if( !p_jp2->color.jp2_pclr->cmap)
2557 opj_jp2_free_pclr(&(p_jp2->color));
2558 else
2559 opj_jp2_apply_pclr(p_image, &(p_jp2->color));
2560 }
2561
2562 if(p_jp2->color.icc_profile_buf) {
2563 p_image->icc_profile_buf = p_jp2->color.icc_profile_buf;
2564 p_image->icc_profile_len = p_jp2->color.icc_profile_len;
2565 p_jp2->color.icc_profile_buf = NULL;
2566 }
2567
2568 return OPJ_TRUE;
2569 }
2570
2571 /* ----------------------------------------------------------------------- */
2572 /* JP2 encoder interface */
2573 /* ----------------------------------------------------------------------- */
2574
opj_jp2_create(OPJ_BOOL p_is_decoder)2575 opj_jp2_t* opj_jp2_create(OPJ_BOOL p_is_decoder)
2576 {
2577 opj_jp2_t *jp2 = (opj_jp2_t*)opj_malloc(sizeof(opj_jp2_t));
2578 if (jp2) {
2579 memset(jp2,0,sizeof(opj_jp2_t));
2580
2581 /* create the J2K codec */
2582 if (! p_is_decoder) {
2583 jp2->j2k = opj_j2k_create_compress();
2584 }
2585 else {
2586 jp2->j2k = opj_j2k_create_decompress();
2587 }
2588
2589 if (jp2->j2k == 00) {
2590 opj_jp2_destroy(jp2);
2591 return 00;
2592 }
2593
2594 /* Color structure */
2595 jp2->color.icc_profile_buf = NULL;
2596 jp2->color.icc_profile_len = 0;
2597 jp2->color.jp2_cdef = NULL;
2598 jp2->color.jp2_pclr = NULL;
2599 jp2->color.jp2_has_colr = 0;
2600
2601 /* validation list creation */
2602 jp2->m_validation_list = opj_procedure_list_create();
2603 if (! jp2->m_validation_list) {
2604 opj_jp2_destroy(jp2);
2605 return 00;
2606 }
2607
2608 /* execution list creation */
2609 jp2->m_procedure_list = opj_procedure_list_create();
2610 if (! jp2->m_procedure_list) {
2611 opj_jp2_destroy(jp2);
2612 return 00;
2613 }
2614 }
2615
2616 return jp2;
2617 }
2618
jp2_dump(opj_jp2_t * p_jp2,OPJ_INT32 flag,FILE * out_stream)2619 void jp2_dump(opj_jp2_t* p_jp2, OPJ_INT32 flag, FILE* out_stream)
2620 {
2621 /* preconditions */
2622 assert(p_jp2 != 00);
2623
2624 j2k_dump(p_jp2->j2k,
2625 flag,
2626 out_stream);
2627 }
2628
jp2_get_cstr_index(opj_jp2_t * p_jp2)2629 opj_codestream_index_t* jp2_get_cstr_index(opj_jp2_t* p_jp2)
2630 {
2631 return j2k_get_cstr_index(p_jp2->j2k);
2632 }
2633
jp2_get_cstr_info(opj_jp2_t * p_jp2)2634 opj_codestream_info_v2_t* jp2_get_cstr_info(opj_jp2_t* p_jp2)
2635 {
2636 return j2k_get_cstr_info(p_jp2->j2k);
2637 }
2638
opj_jp2_set_decoded_resolution_factor(opj_jp2_t * p_jp2,OPJ_UINT32 res_factor,opj_event_mgr_t * p_manager)2639 OPJ_BOOL opj_jp2_set_decoded_resolution_factor(opj_jp2_t *p_jp2,
2640 OPJ_UINT32 res_factor,
2641 opj_event_mgr_t * p_manager)
2642 {
2643 return opj_j2k_set_decoded_resolution_factor(p_jp2->j2k, res_factor, p_manager);
2644 }
2645
2646 /* JPIP specific */
2647
2648 #ifdef USE_JPIP
opj_jpip_write_iptr(opj_jp2_t * jp2,opj_stream_private_t * cio,opj_event_mgr_t * p_manager)2649 static OPJ_BOOL opj_jpip_write_iptr(opj_jp2_t *jp2,
2650 opj_stream_private_t *cio,
2651 opj_event_mgr_t * p_manager )
2652 {
2653 OPJ_OFF_T j2k_codestream_exit;
2654 OPJ_BYTE l_data_header [24];
2655
2656 /* preconditions */
2657 assert(jp2 != 00);
2658 assert(cio != 00);
2659 assert(p_manager != 00);
2660 assert(opj_stream_has_seek(cio));
2661
2662 j2k_codestream_exit = opj_stream_tell(cio);
2663 opj_write_bytes(l_data_header, 24, 4); /* size of iptr */
2664 opj_write_bytes(l_data_header + 4,JPIP_IPTR,4); /* IPTR */
2665 #if 0
2666 opj_write_bytes(l_data_header + 4 + 4, 0, 8); /* offset */
2667 opj_write_bytes(l_data_header + 8 + 8, 0, 8); /* length */
2668 #else
2669 opj_write_double(l_data_header + 4 + 4, 0); /* offset */
2670 opj_write_double(l_data_header + 8 + 8, 0); /* length */
2671 #endif
2672
2673 if (! opj_stream_seek(cio,jp2->jpip_iptr_offset,p_manager)) {
2674 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
2675 return OPJ_FALSE;
2676 }
2677
2678 if (opj_stream_write_data(cio,l_data_header,24,p_manager) != 24) {
2679 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
2680 return OPJ_FALSE;
2681 }
2682
2683 if (! opj_stream_seek(cio,j2k_codestream_exit,p_manager)) {
2684 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
2685 return OPJ_FALSE;
2686 }
2687
2688 return OPJ_TRUE;
2689 }
2690
opj_jpip_write_fidx(opj_jp2_t * jp2,opj_stream_private_t * cio,opj_event_mgr_t * p_manager)2691 static OPJ_BOOL opj_jpip_write_fidx(opj_jp2_t *jp2,
2692 opj_stream_private_t *cio,
2693 opj_event_mgr_t * p_manager )
2694 {
2695 OPJ_OFF_T j2k_codestream_exit;
2696 OPJ_BYTE l_data_header [24];
2697
2698 /* preconditions */
2699 assert(jp2 != 00);
2700 assert(cio != 00);
2701 assert(p_manager != 00);
2702 assert(opj_stream_has_seek(cio));
2703
2704 opj_write_bytes(l_data_header, 24, 4); /* size of iptr */
2705 opj_write_bytes(l_data_header + 4,JPIP_FIDX,4); /* IPTR */
2706 opj_write_double(l_data_header + 4 + 4, 0); /* offset */
2707 opj_write_double(l_data_header + 8 + 8, 0); /* length */
2708
2709 if (opj_stream_write_data(cio,l_data_header,24,p_manager) != 24) {
2710 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
2711 return OPJ_FALSE;
2712 }
2713
2714 j2k_codestream_exit = opj_stream_tell(cio);
2715 if (! opj_stream_seek(cio,j2k_codestream_exit,p_manager)) {
2716 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
2717 return OPJ_FALSE;
2718 }
2719
2720 return OPJ_TRUE;
2721 }
2722
opj_jpip_write_cidx(opj_jp2_t * jp2,opj_stream_private_t * cio,opj_event_mgr_t * p_manager)2723 static OPJ_BOOL opj_jpip_write_cidx(opj_jp2_t *jp2,
2724 opj_stream_private_t *cio,
2725 opj_event_mgr_t * p_manager )
2726 {
2727 OPJ_OFF_T j2k_codestream_exit;
2728 OPJ_BYTE l_data_header [24];
2729
2730 /* preconditions */
2731 assert(jp2 != 00);
2732 assert(cio != 00);
2733 assert(p_manager != 00);
2734 assert(opj_stream_has_seek(cio));
2735
2736 j2k_codestream_exit = opj_stream_tell(cio);
2737 opj_write_bytes(l_data_header, 24, 4); /* size of iptr */
2738 opj_write_bytes(l_data_header + 4,JPIP_CIDX,4); /* IPTR */
2739 #if 0
2740 opj_write_bytes(l_data_header + 4 + 4, 0, 8); /* offset */
2741 opj_write_bytes(l_data_header + 8 + 8, 0, 8); /* length */
2742 #else
2743 opj_write_double(l_data_header + 4 + 4, 0); /* offset */
2744 opj_write_double(l_data_header + 8 + 8, 0); /* length */
2745 #endif
2746
2747 if (! opj_stream_seek(cio,j2k_codestream_exit,p_manager)) {
2748 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
2749 return OPJ_FALSE;
2750 }
2751
2752 if (opj_stream_write_data(cio,l_data_header,24,p_manager) != 24) {
2753 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
2754 return OPJ_FALSE;
2755 }
2756
2757 j2k_codestream_exit = opj_stream_tell(cio);
2758 if (! opj_stream_seek(cio,j2k_codestream_exit,p_manager)) {
2759 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
2760 return OPJ_FALSE;
2761 }
2762
2763 return OPJ_TRUE;
2764 }
2765
2766 #if 0
2767 static void write_prxy( int offset_jp2c, int length_jp2c, int offset_idx, int length_idx, opj_stream_private_t *cio,
2768 opj_event_mgr_t * p_manager )
2769 {
2770 OPJ_BYTE l_data_header [8];
2771 OPJ_OFF_T len, lenp;
2772
2773 lenp = opj_stream_tell(cio);
2774 opj_stream_skip(cio, 4, p_manager); /* L [at the end] */
2775 opj_write_bytes(l_data_header,JPIP_PRXY,4); /* IPTR */
2776 opj_stream_write_data(cio,l_data_header,4,p_manager);
2777
2778 opj_write_bytes( l_data_header, offset_jp2c, 8); /* OOFF */
2779 opj_stream_write_data(cio,l_data_header,8,p_manager);
2780 opj_write_bytes( l_data_header, length_jp2c, 4); /* OBH part 1 */
2781 opj_write_bytes( l_data_header+4, JP2_JP2C, 4); /* OBH part 2 */
2782 opj_stream_write_data(cio,l_data_header,8,p_manager);
2783
2784 opj_write_bytes( l_data_header, 1, 1);/* NI */
2785 opj_stream_write_data(cio,l_data_header,1,p_manager);
2786
2787 opj_write_bytes( l_data_header, offset_idx, 8); /* IOFF */
2788 opj_stream_write_data(cio,l_data_header,8,p_manager);
2789 opj_write_bytes( l_data_header, length_idx, 4); /* IBH part 1 */
2790 opj_write_bytes( l_data_header+4, JPIP_CIDX, 4); /* IBH part 2 */
2791 opj_stream_write_data(cio,l_data_header,8,p_manager);
2792
2793 len = opj_stream_tell(cio)-lenp;
2794 opj_stream_skip(cio, lenp, p_manager);
2795 opj_write_bytes(l_data_header,len,4);/* L */
2796 opj_stream_write_data(cio,l_data_header,4,p_manager);
2797 opj_stream_seek(cio, lenp+len,p_manager);
2798 }
2799 #endif
2800
2801
2802 #if 0
2803 static int write_fidx( int offset_jp2c, int length_jp2c, int offset_idx, int length_idx, opj_stream_private_t *cio,
2804 opj_event_mgr_t * p_manager )
2805 {
2806 OPJ_BYTE l_data_header [4];
2807 OPJ_OFF_T len, lenp;
2808
2809 lenp = opj_stream_tell(cio);
2810 opj_stream_skip(cio, 4, p_manager);
2811 opj_write_bytes(l_data_header,JPIP_FIDX,4); /* FIDX */
2812 opj_stream_write_data(cio,l_data_header,4,p_manager);
2813
2814 write_prxy( offset_jp2c, length_jp2c, offset_idx, length_idx, cio,p_manager);
2815
2816 len = opj_stream_tell(cio)-lenp;
2817 opj_stream_skip(cio, lenp, p_manager);
2818 opj_write_bytes(l_data_header,len,4);/* L */
2819 opj_stream_write_data(cio,l_data_header,4,p_manager);
2820 opj_stream_seek(cio, lenp+len,p_manager);
2821
2822 return len;
2823 }
2824 #endif
2825 #endif /* USE_JPIP */
2826