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 #define OPJ_UNUSED(x) (void)x
48
49 /** @name Local static functions */
50 /*@{*/
51
52 /*static void jp2_write_url(opj_cio_t *cio, char *Idx_file);*/
53
54 /**
55 * Reads a IHDR box - Image Header box
56 *
57 * @param p_image_header_data pointer to actual data (already read from file)
58 * @param jp2 the jpeg2000 file codec.
59 * @param p_image_header_size the size of the image header
60 * @param p_manager the user event manager.
61 *
62 * @return true if the image header is valid, false else.
63 */
64 static OPJ_BOOL opj_jp2_read_ihdr(opj_jp2_t *jp2,
65 OPJ_BYTE *p_image_header_data,
66 OPJ_UINT32 p_image_header_size,
67 opj_event_mgr_t * p_manager);
68
69 /**
70 * Writes the Image Header box - Image Header box.
71 *
72 * @param jp2 jpeg2000 file codec.
73 * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
74 *
75 * @return the data being copied.
76 */
77 static OPJ_BYTE * opj_jp2_write_ihdr(opj_jp2_t *jp2,
78 OPJ_UINT32 * p_nb_bytes_written);
79
80 /**
81 * Writes the Bit per Component box.
82 *
83 * @param jp2 jpeg2000 file codec.
84 * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
85 *
86 * @return the data being copied.
87 */
88 static OPJ_BYTE * opj_jp2_write_bpcc(opj_jp2_t *jp2,
89 OPJ_UINT32 * p_nb_bytes_written);
90
91 /**
92 * Reads a Bit per Component box.
93 *
94 * @param p_bpc_header_data pointer to actual data (already read from file)
95 * @param jp2 the jpeg2000 file codec.
96 * @param p_bpc_header_size the size of the bpc header
97 * @param p_manager the user event manager.
98 *
99 * @return true if the bpc header is valid, false else.
100 */
101 static OPJ_BOOL opj_jp2_read_bpcc(opj_jp2_t *jp2,
102 OPJ_BYTE * p_bpc_header_data,
103 OPJ_UINT32 p_bpc_header_size,
104 opj_event_mgr_t * p_manager);
105
106 static OPJ_BOOL opj_jp2_read_cdef(opj_jp2_t * jp2,
107 OPJ_BYTE * p_cdef_header_data,
108 OPJ_UINT32 p_cdef_header_size,
109 opj_event_mgr_t * p_manager);
110
111 static void opj_jp2_apply_cdef(opj_image_t *image, opj_jp2_color_t *color,
112 opj_event_mgr_t *);
113
114 /**
115 * Writes the Channel Definition box.
116 *
117 * @param jp2 jpeg2000 file codec.
118 * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
119 *
120 * @return the data being copied.
121 */
122 static OPJ_BYTE * opj_jp2_write_cdef(opj_jp2_t *jp2,
123 OPJ_UINT32 * p_nb_bytes_written);
124
125 /**
126 * Writes the Colour Specification box.
127 *
128 * @param jp2 jpeg2000 file codec.
129 * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
130 *
131 * @return the data being copied.
132 */
133 static OPJ_BYTE * opj_jp2_write_colr(opj_jp2_t *jp2,
134 OPJ_UINT32 * p_nb_bytes_written);
135
136 /**
137 * Writes a FTYP box - File type box
138 *
139 * @param cio the stream to write data to.
140 * @param jp2 the jpeg2000 file codec.
141 * @param p_manager the user event manager.
142 *
143 * @return true if writing was successful.
144 */
145 static OPJ_BOOL opj_jp2_write_ftyp(opj_jp2_t *jp2,
146 opj_stream_private_t *cio,
147 opj_event_mgr_t * p_manager);
148
149 /**
150 * Reads a a FTYP box - File type box
151 *
152 * @param p_header_data the data contained in the FTYP box.
153 * @param jp2 the jpeg2000 file codec.
154 * @param p_header_size the size of the data contained in the FTYP box.
155 * @param p_manager the user event manager.
156 *
157 * @return true if the FTYP box is valid.
158 */
159 static OPJ_BOOL opj_jp2_read_ftyp(opj_jp2_t *jp2,
160 OPJ_BYTE * p_header_data,
161 OPJ_UINT32 p_header_size,
162 opj_event_mgr_t * p_manager);
163
164 static OPJ_BOOL opj_jp2_skip_jp2c(opj_jp2_t *jp2,
165 opj_stream_private_t *stream,
166 opj_event_mgr_t * p_manager);
167
168 /**
169 * Reads the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box).
170 *
171 * @param p_header_data the data contained in the file header box.
172 * @param jp2 the jpeg2000 file codec.
173 * @param p_header_size the size of the data contained in the file header box.
174 * @param p_manager the user event manager.
175 *
176 * @return true if the JP2 Header box was successfully recognized.
177 */
178 static OPJ_BOOL opj_jp2_read_jp2h(opj_jp2_t *jp2,
179 OPJ_BYTE *p_header_data,
180 OPJ_UINT32 p_header_size,
181 opj_event_mgr_t * p_manager);
182
183 /**
184 * Writes the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box).
185 *
186 * @param jp2 the jpeg2000 file codec.
187 * @param stream the stream to write data to.
188 * @param p_manager user event manager.
189 *
190 * @return true if writing was successful.
191 */
192 static OPJ_BOOL opj_jp2_write_jp2h(opj_jp2_t *jp2,
193 opj_stream_private_t *stream,
194 opj_event_mgr_t * p_manager);
195
196 /**
197 * Writes the Jpeg2000 codestream Header box - JP2C Header box. This function must be called AFTER the coding has been done.
198 *
199 * @param cio the stream to write data to.
200 * @param jp2 the jpeg2000 file codec.
201 * @param p_manager user event manager.
202 *
203 * @return true if writing was successful.
204 */
205 static OPJ_BOOL opj_jp2_write_jp2c(opj_jp2_t *jp2,
206 opj_stream_private_t *cio,
207 opj_event_mgr_t * p_manager);
208
209 #ifdef USE_JPIP
210 /**
211 * Write index Finder box
212 * @param cio the stream to write to.
213 * @param jp2 the jpeg2000 file codec.
214 * @param p_manager user event manager.
215 */
216 static OPJ_BOOL opj_jpip_write_iptr(opj_jp2_t *jp2,
217 opj_stream_private_t *cio,
218 opj_event_mgr_t * p_manager);
219
220 /**
221 * Write index Finder box
222 * @param cio the stream to write to.
223 * @param jp2 the jpeg2000 file codec.
224 * @param p_manager user event manager.
225 */
226 static OPJ_BOOL opj_jpip_write_cidx(opj_jp2_t *jp2,
227 opj_stream_private_t *cio,
228 opj_event_mgr_t * p_manager);
229
230 /**
231 * Write file Index (superbox)
232 * @param cio the stream to write to.
233 * @param jp2 the jpeg2000 file codec.
234 * @param p_manager user event manager.
235 */
236 static OPJ_BOOL opj_jpip_write_fidx(opj_jp2_t *jp2,
237 opj_stream_private_t *cio,
238 opj_event_mgr_t * p_manager);
239 #endif /* USE_JPIP */
240
241 /**
242 * Reads a jpeg2000 file signature box.
243 *
244 * @param p_header_data the data contained in the signature box.
245 * @param jp2 the jpeg2000 file codec.
246 * @param p_header_size the size of the data contained in the signature box.
247 * @param p_manager the user event manager.
248 *
249 * @return true if the file signature box is valid.
250 */
251 static OPJ_BOOL opj_jp2_read_jp(opj_jp2_t *jp2,
252 OPJ_BYTE * p_header_data,
253 OPJ_UINT32 p_header_size,
254 opj_event_mgr_t * p_manager);
255
256 /**
257 * Writes a jpeg2000 file signature box.
258 *
259 * @param cio the stream to write data to.
260 * @param jp2 the jpeg2000 file codec.
261 * @param p_manager the user event manager.
262 *
263 * @return true if writing was successful.
264 */
265 static OPJ_BOOL opj_jp2_write_jp(opj_jp2_t *jp2,
266 opj_stream_private_t *cio,
267 opj_event_mgr_t * p_manager);
268
269 /**
270 Apply collected palette data
271 @param image Image.
272 @param color Collector for profile, cdef and pclr data.
273 @param p_manager the user event manager.
274 @return true in case of success
275 */
276 static OPJ_BOOL opj_jp2_apply_pclr(opj_image_t *image,
277 opj_jp2_color_t *color,
278 opj_event_mgr_t * p_manager);
279
280 static void opj_jp2_free_pclr(opj_jp2_color_t *color);
281
282 /**
283 * Collect palette data
284 *
285 * @param jp2 JP2 handle
286 * @param p_pclr_header_data FIXME DOC
287 * @param p_pclr_header_size FIXME DOC
288 * @param p_manager
289 *
290 * @return Returns true if successful, returns false otherwise
291 */
292 static OPJ_BOOL opj_jp2_read_pclr(opj_jp2_t *jp2,
293 OPJ_BYTE * p_pclr_header_data,
294 OPJ_UINT32 p_pclr_header_size,
295 opj_event_mgr_t * p_manager);
296
297 /**
298 * Collect component mapping data
299 *
300 * @param jp2 JP2 handle
301 * @param p_cmap_header_data FIXME DOC
302 * @param p_cmap_header_size FIXME DOC
303 * @param p_manager FIXME DOC
304 *
305 * @return Returns true if successful, returns false otherwise
306 */
307
308 static OPJ_BOOL opj_jp2_read_cmap(opj_jp2_t * jp2,
309 OPJ_BYTE * p_cmap_header_data,
310 OPJ_UINT32 p_cmap_header_size,
311 opj_event_mgr_t * p_manager);
312
313 /**
314 * Reads the Color Specification box.
315 *
316 * @param p_colr_header_data pointer to actual data (already read from file)
317 * @param jp2 the jpeg2000 file codec.
318 * @param p_colr_header_size the size of the color header
319 * @param p_manager the user event manager.
320 *
321 * @return true if the bpc header is valid, false else.
322 */
323 static OPJ_BOOL opj_jp2_read_colr(opj_jp2_t *jp2,
324 OPJ_BYTE * p_colr_header_data,
325 OPJ_UINT32 p_colr_header_size,
326 opj_event_mgr_t * p_manager);
327
328 /*@}*/
329
330 /*@}*/
331
332 /**
333 * Sets up the procedures to do on writing header after the codestream.
334 * Developers wanting to extend the library can add their own writing procedures.
335 */
336 static OPJ_BOOL opj_jp2_setup_end_header_writing(opj_jp2_t *jp2,
337 opj_event_mgr_t * p_manager);
338
339 /**
340 * Sets up the procedures to do on reading header after the codestream.
341 * Developers wanting to extend the library can add their own writing procedures.
342 */
343 static OPJ_BOOL opj_jp2_setup_end_header_reading(opj_jp2_t *jp2,
344 opj_event_mgr_t * p_manager);
345
346 /**
347 * Reads a jpeg2000 file header structure.
348 *
349 * @param jp2 the jpeg2000 file header structure.
350 * @param stream the stream to read data from.
351 * @param p_manager the user event manager.
352 *
353 * @return true if the box is valid.
354 */
355 static OPJ_BOOL opj_jp2_read_header_procedure(opj_jp2_t *jp2,
356 opj_stream_private_t *stream,
357 opj_event_mgr_t * p_manager);
358
359 /**
360 * Executes the given procedures on the given codec.
361 *
362 * @param p_procedure_list the list of procedures to execute
363 * @param jp2 the jpeg2000 file codec to execute the procedures on.
364 * @param stream the stream to execute the procedures on.
365 * @param p_manager the user manager.
366 *
367 * @return true if all the procedures were successfully executed.
368 */
369 static OPJ_BOOL opj_jp2_exec(opj_jp2_t * jp2,
370 opj_procedure_list_t * p_procedure_list,
371 opj_stream_private_t *stream,
372 opj_event_mgr_t * p_manager);
373
374 /**
375 * Reads a box header. The box is the way data is packed inside a jpeg2000 file structure.
376 *
377 * @param cio the input stream to read data from.
378 * @param box the box structure to fill.
379 * @param p_number_bytes_read pointer to an int that will store the number of bytes read from the stream (shoul usually be 2).
380 * @param p_manager user event manager.
381 *
382 * @return true if the box is recognized, false otherwise
383 */
384 static OPJ_BOOL opj_jp2_read_boxhdr(opj_jp2_box_t *box,
385 OPJ_UINT32 * p_number_bytes_read,
386 opj_stream_private_t *cio,
387 opj_event_mgr_t * p_manager);
388
389 /**
390 * Sets up the validation ,i.e. adds the procedures to launch to make sure the codec parameters
391 * are valid. Developers wanting to extend the library can add their own validation procedures.
392 */
393 static OPJ_BOOL opj_jp2_setup_encoding_validation(opj_jp2_t *jp2,
394 opj_event_mgr_t * p_manager);
395
396 /**
397 * Sets up the procedures to do on writing header. Developers wanting to extend the library can add their own writing procedures.
398 */
399 static OPJ_BOOL opj_jp2_setup_header_writing(opj_jp2_t *jp2,
400 opj_event_mgr_t * p_manager);
401
402 static OPJ_BOOL opj_jp2_default_validation(opj_jp2_t * jp2,
403 opj_stream_private_t *cio,
404 opj_event_mgr_t * p_manager);
405
406 /**
407 * Finds the image execution function related to the given box id.
408 *
409 * @param p_id the id of the handler to fetch.
410 *
411 * @return the given handler or NULL if it could not be found.
412 */
413 static const opj_jp2_header_handler_t * opj_jp2_img_find_handler(
414 OPJ_UINT32 p_id);
415
416 /**
417 * Finds the execution function related to the given box id.
418 *
419 * @param p_id the id of the handler to fetch.
420 *
421 * @return the given handler or NULL if it could not be found.
422 */
423 static const opj_jp2_header_handler_t * opj_jp2_find_handler(OPJ_UINT32 p_id);
424
425 static const opj_jp2_header_handler_t jp2_header [] = {
426 {JP2_JP, opj_jp2_read_jp},
427 {JP2_FTYP, opj_jp2_read_ftyp},
428 {JP2_JP2H, opj_jp2_read_jp2h}
429 };
430
431 static const opj_jp2_header_handler_t jp2_img_header [] = {
432 {JP2_IHDR, opj_jp2_read_ihdr},
433 {JP2_COLR, opj_jp2_read_colr},
434 {JP2_BPCC, opj_jp2_read_bpcc},
435 {JP2_PCLR, opj_jp2_read_pclr},
436 {JP2_CMAP, opj_jp2_read_cmap},
437 {JP2_CDEF, opj_jp2_read_cdef}
438
439 };
440
441 /**
442 * Reads a box header. The box is the way data is packed inside a jpeg2000 file structure. Data is read from a character string
443 *
444 * @param box the box structure to fill.
445 * @param p_data the character string to read data from.
446 * @param p_number_bytes_read pointer to an int that will store the number of bytes read from the stream (shoul usually be 2).
447 * @param p_box_max_size the maximum number of bytes in the box.
448 * @param p_manager FIXME DOC
449 *
450 * @return true if the box is recognized, false otherwise
451 */
452 static OPJ_BOOL opj_jp2_read_boxhdr_char(opj_jp2_box_t *box,
453 OPJ_BYTE * p_data,
454 OPJ_UINT32 * p_number_bytes_read,
455 OPJ_UINT32 p_box_max_size,
456 opj_event_mgr_t * p_manager);
457
458 /**
459 * Sets up the validation ,i.e. adds the procedures to launch to make sure the codec parameters
460 * are valid. Developers wanting to extend the library can add their own validation procedures.
461 */
462 static OPJ_BOOL opj_jp2_setup_decoding_validation(opj_jp2_t *jp2,
463 opj_event_mgr_t * p_manager);
464
465 /**
466 * Sets up the procedures to do on reading header.
467 * Developers wanting to extend the library can add their own writing procedures.
468 */
469 static OPJ_BOOL opj_jp2_setup_header_reading(opj_jp2_t *jp2,
470 opj_event_mgr_t * p_manager);
471
472 /* ----------------------------------------------------------------------- */
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)473 static OPJ_BOOL opj_jp2_read_boxhdr(opj_jp2_box_t *box,
474 OPJ_UINT32 * p_number_bytes_read,
475 opj_stream_private_t *cio,
476 opj_event_mgr_t * p_manager)
477 {
478 /* read header from file */
479 OPJ_BYTE l_data_header [8];
480
481 /* preconditions */
482 assert(cio != 00);
483 assert(box != 00);
484 assert(p_number_bytes_read != 00);
485 assert(p_manager != 00);
486
487 *p_number_bytes_read = (OPJ_UINT32)opj_stream_read_data(cio, l_data_header, 8,
488 p_manager);
489 if (*p_number_bytes_read != 8) {
490 return OPJ_FALSE;
491 }
492
493 /* process read data */
494 opj_read_bytes(l_data_header, &(box->length), 4);
495 opj_read_bytes(l_data_header + 4, &(box->type), 4);
496
497 if (box->length == 0) { /* last box */
498 const OPJ_OFF_T bleft = opj_stream_get_number_byte_left(cio);
499 if (bleft > (OPJ_OFF_T)(0xFFFFFFFFU - 8U)) {
500 opj_event_msg(p_manager, EVT_ERROR,
501 "Cannot handle box sizes higher than 2^32\n");
502 return OPJ_FALSE;
503 }
504 box->length = (OPJ_UINT32)bleft + 8U;
505 assert((OPJ_OFF_T)box->length == bleft + 8);
506 return OPJ_TRUE;
507 }
508
509 /* do we have a "special very large box ?" */
510 /* read then the XLBox */
511 if (box->length == 1) {
512 OPJ_UINT32 l_xl_part_size;
513
514 OPJ_UINT32 l_nb_bytes_read = (OPJ_UINT32)opj_stream_read_data(cio,
515 l_data_header, 8, p_manager);
516 if (l_nb_bytes_read != 8) {
517 if (l_nb_bytes_read > 0) {
518 *p_number_bytes_read += l_nb_bytes_read;
519 }
520
521 return OPJ_FALSE;
522 }
523
524 *p_number_bytes_read = 16;
525 opj_read_bytes(l_data_header, &l_xl_part_size, 4);
526 if (l_xl_part_size != 0) {
527 opj_event_msg(p_manager, EVT_ERROR,
528 "Cannot handle box sizes higher than 2^32\n");
529 return OPJ_FALSE;
530 }
531 opj_read_bytes(l_data_header + 4, &(box->length), 4);
532 }
533 return OPJ_TRUE;
534 }
535
536 #if 0
537 static void jp2_write_url(opj_cio_t *cio, char *Idx_file)
538 {
539 OPJ_UINT32 i;
540 opj_jp2_box_t box;
541
542 box.init_pos = cio_tell(cio);
543 cio_skip(cio, 4);
544 cio_write(cio, JP2_URL, 4); /* DBTL */
545 cio_write(cio, 0, 1); /* VERS */
546 cio_write(cio, 0, 3); /* FLAG */
547
548 if (Idx_file) {
549 for (i = 0; i < strlen(Idx_file); i++) {
550 cio_write(cio, Idx_file[i], 1);
551 }
552 }
553
554 box.length = cio_tell(cio) - box.init_pos;
555 cio_seek(cio, box.init_pos);
556 cio_write(cio, box.length, 4); /* L */
557 cio_seek(cio, box.init_pos + box.length);
558 }
559 #endif
560
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)561 static OPJ_BOOL opj_jp2_read_ihdr(opj_jp2_t *jp2,
562 OPJ_BYTE *p_image_header_data,
563 OPJ_UINT32 p_image_header_size,
564 opj_event_mgr_t * p_manager)
565 {
566 /* preconditions */
567 assert(p_image_header_data != 00);
568 assert(jp2 != 00);
569 assert(p_manager != 00);
570
571 if (jp2->comps != NULL) {
572 opj_event_msg(p_manager, EVT_WARNING,
573 "Ignoring ihdr box. First ihdr box already read\n");
574 return OPJ_TRUE;
575 }
576
577 if (p_image_header_size != 14) {
578 opj_event_msg(p_manager, EVT_ERROR, "Bad image header box (bad size)\n");
579 return OPJ_FALSE;
580 }
581
582 opj_read_bytes(p_image_header_data, &(jp2->h), 4); /* HEIGHT */
583 p_image_header_data += 4;
584 opj_read_bytes(p_image_header_data, &(jp2->w), 4); /* WIDTH */
585 p_image_header_data += 4;
586 opj_read_bytes(p_image_header_data, &(jp2->numcomps), 2); /* NC */
587 p_image_header_data += 2;
588
589 if (jp2->h < 1 || jp2->w < 1 || jp2->numcomps < 1) {
590 opj_event_msg(p_manager, EVT_ERROR,
591 "Wrong values for: w(%d) h(%d) numcomps(%d) (ihdr)\n",
592 jp2->w, jp2->h, jp2->numcomps);
593 return OPJ_FALSE;
594 }
595 if ((jp2->numcomps - 1U) >=
596 16384U) { /* unsigned underflow is well defined: 1U <= jp2->numcomps <= 16384U */
597 opj_event_msg(p_manager, EVT_ERROR, "Invalid number of components (ihdr)\n");
598 return OPJ_FALSE;
599 }
600
601 /* allocate memory for components */
602 opj_free(jp2->comps);
603 jp2->comps = (opj_jp2_comps_t*) opj_calloc(jp2->numcomps,
604 sizeof(opj_jp2_comps_t));
605 if (jp2->comps == 0) {
606 opj_event_msg(p_manager, EVT_ERROR,
607 "Not enough memory to handle image header (ihdr)\n");
608 return OPJ_FALSE;
609 }
610
611 opj_read_bytes(p_image_header_data, &(jp2->bpc), 1); /* BPC */
612 ++ p_image_header_data;
613
614 opj_read_bytes(p_image_header_data, &(jp2->C), 1); /* C */
615 ++ p_image_header_data;
616
617 /* Should be equal to 7 cf. chapter about image header box of the norm */
618 if (jp2->C != 7) {
619 opj_event_msg(p_manager, EVT_INFO,
620 "JP2 IHDR box: compression type indicate that the file is not a conforming JP2 file (%d) \n",
621 jp2->C);
622 }
623
624 opj_read_bytes(p_image_header_data, &(jp2->UnkC), 1); /* UnkC */
625 ++ p_image_header_data;
626 opj_read_bytes(p_image_header_data, &(jp2->IPR), 1); /* IPR */
627 ++ p_image_header_data;
628
629 jp2->j2k->m_cp.allow_different_bit_depth_sign = (jp2->bpc == 255);
630 jp2->j2k->ihdr_w = jp2->w;
631 jp2->j2k->ihdr_h = jp2->h;
632 jp2->has_ihdr = 1;
633
634 return OPJ_TRUE;
635 }
636
opj_jp2_write_ihdr(opj_jp2_t * jp2,OPJ_UINT32 * p_nb_bytes_written)637 static OPJ_BYTE * opj_jp2_write_ihdr(opj_jp2_t *jp2,
638 OPJ_UINT32 * p_nb_bytes_written
639 )
640 {
641 OPJ_BYTE * l_ihdr_data, * l_current_ihdr_ptr;
642
643 /* preconditions */
644 assert(jp2 != 00);
645 assert(p_nb_bytes_written != 00);
646
647 /* default image header is 22 bytes wide */
648 l_ihdr_data = (OPJ_BYTE *) opj_calloc(1, 22);
649 if (l_ihdr_data == 00) {
650 return 00;
651 }
652
653 l_current_ihdr_ptr = l_ihdr_data;
654
655 opj_write_bytes(l_current_ihdr_ptr, 22, 4); /* write box size */
656 l_current_ihdr_ptr += 4;
657
658 opj_write_bytes(l_current_ihdr_ptr, JP2_IHDR, 4); /* IHDR */
659 l_current_ihdr_ptr += 4;
660
661 opj_write_bytes(l_current_ihdr_ptr, jp2->h, 4); /* HEIGHT */
662 l_current_ihdr_ptr += 4;
663
664 opj_write_bytes(l_current_ihdr_ptr, jp2->w, 4); /* WIDTH */
665 l_current_ihdr_ptr += 4;
666
667 opj_write_bytes(l_current_ihdr_ptr, jp2->numcomps, 2); /* NC */
668 l_current_ihdr_ptr += 2;
669
670 opj_write_bytes(l_current_ihdr_ptr, jp2->bpc, 1); /* BPC */
671 ++l_current_ihdr_ptr;
672
673 opj_write_bytes(l_current_ihdr_ptr, jp2->C, 1); /* C : Always 7 */
674 ++l_current_ihdr_ptr;
675
676 opj_write_bytes(l_current_ihdr_ptr, jp2->UnkC,
677 1); /* UnkC, colorspace unknown */
678 ++l_current_ihdr_ptr;
679
680 opj_write_bytes(l_current_ihdr_ptr, jp2->IPR,
681 1); /* IPR, no intellectual property */
682 ++l_current_ihdr_ptr;
683
684 *p_nb_bytes_written = 22;
685
686 return l_ihdr_data;
687 }
688
opj_jp2_write_bpcc(opj_jp2_t * jp2,OPJ_UINT32 * p_nb_bytes_written)689 static OPJ_BYTE * opj_jp2_write_bpcc(opj_jp2_t *jp2,
690 OPJ_UINT32 * p_nb_bytes_written
691 )
692 {
693 OPJ_UINT32 i;
694 /* room for 8 bytes for box and 1 byte for each component */
695 OPJ_UINT32 l_bpcc_size;
696 OPJ_BYTE * l_bpcc_data, * l_current_bpcc_ptr;
697
698 /* preconditions */
699 assert(jp2 != 00);
700 assert(p_nb_bytes_written != 00);
701 l_bpcc_size = 8 + jp2->numcomps;
702
703 l_bpcc_data = (OPJ_BYTE *) opj_calloc(1, l_bpcc_size);
704 if (l_bpcc_data == 00) {
705 return 00;
706 }
707
708 l_current_bpcc_ptr = l_bpcc_data;
709
710 opj_write_bytes(l_current_bpcc_ptr, l_bpcc_size,
711 4); /* write box size */
712 l_current_bpcc_ptr += 4;
713
714 opj_write_bytes(l_current_bpcc_ptr, JP2_BPCC, 4); /* BPCC */
715 l_current_bpcc_ptr += 4;
716
717 for (i = 0; i < jp2->numcomps; ++i) {
718 opj_write_bytes(l_current_bpcc_ptr, jp2->comps[i].bpcc,
719 1); /* write each component information */
720 ++l_current_bpcc_ptr;
721 }
722
723 *p_nb_bytes_written = l_bpcc_size;
724
725 return l_bpcc_data;
726 }
727
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)728 static OPJ_BOOL opj_jp2_read_bpcc(opj_jp2_t *jp2,
729 OPJ_BYTE * p_bpc_header_data,
730 OPJ_UINT32 p_bpc_header_size,
731 opj_event_mgr_t * p_manager
732 )
733 {
734 OPJ_UINT32 i;
735
736 /* preconditions */
737 assert(p_bpc_header_data != 00);
738 assert(jp2 != 00);
739 assert(p_manager != 00);
740
741
742 if (jp2->bpc != 255) {
743 opj_event_msg(p_manager, EVT_WARNING,
744 "A BPCC header box is available although BPC given by the IHDR box (%d) indicate components bit depth is constant\n",
745 jp2->bpc);
746 }
747
748 /* and length is relevant */
749 if (p_bpc_header_size != jp2->numcomps) {
750 opj_event_msg(p_manager, EVT_ERROR, "Bad BPCC header box (bad size)\n");
751 return OPJ_FALSE;
752 }
753
754 /* read info for each component */
755 for (i = 0; i < jp2->numcomps; ++i) {
756 opj_read_bytes(p_bpc_header_data, &jp2->comps[i].bpcc,
757 1); /* read each BPCC component */
758 ++p_bpc_header_data;
759 }
760
761 return OPJ_TRUE;
762 }
opj_jp2_write_cdef(opj_jp2_t * jp2,OPJ_UINT32 * p_nb_bytes_written)763 static OPJ_BYTE * opj_jp2_write_cdef(opj_jp2_t *jp2,
764 OPJ_UINT32 * p_nb_bytes_written)
765 {
766 /* room for 8 bytes for box, 2 for n */
767 OPJ_UINT32 l_cdef_size = 10;
768 OPJ_BYTE * l_cdef_data, * l_current_cdef_ptr;
769 OPJ_UINT32 l_value;
770 OPJ_UINT16 i;
771
772 /* preconditions */
773 assert(jp2 != 00);
774 assert(p_nb_bytes_written != 00);
775 assert(jp2->color.jp2_cdef != 00);
776 assert(jp2->color.jp2_cdef->info != 00);
777 assert(jp2->color.jp2_cdef->n > 0U);
778
779 l_cdef_size += 6U * jp2->color.jp2_cdef->n;
780
781 l_cdef_data = (OPJ_BYTE *) opj_malloc(l_cdef_size);
782 if (l_cdef_data == 00) {
783 return 00;
784 }
785
786 l_current_cdef_ptr = l_cdef_data;
787
788 opj_write_bytes(l_current_cdef_ptr, l_cdef_size, 4); /* write box size */
789 l_current_cdef_ptr += 4;
790
791 opj_write_bytes(l_current_cdef_ptr, JP2_CDEF, 4); /* BPCC */
792 l_current_cdef_ptr += 4;
793
794 l_value = jp2->color.jp2_cdef->n;
795 opj_write_bytes(l_current_cdef_ptr, l_value, 2); /* N */
796 l_current_cdef_ptr += 2;
797
798 for (i = 0U; i < jp2->color.jp2_cdef->n; ++i) {
799 l_value = jp2->color.jp2_cdef->info[i].cn;
800 opj_write_bytes(l_current_cdef_ptr, l_value, 2); /* Cni */
801 l_current_cdef_ptr += 2;
802 l_value = jp2->color.jp2_cdef->info[i].typ;
803 opj_write_bytes(l_current_cdef_ptr, l_value, 2); /* Typi */
804 l_current_cdef_ptr += 2;
805 l_value = jp2->color.jp2_cdef->info[i].asoc;
806 opj_write_bytes(l_current_cdef_ptr, l_value, 2); /* Asoci */
807 l_current_cdef_ptr += 2;
808 }
809 *p_nb_bytes_written = l_cdef_size;
810
811 return l_cdef_data;
812 }
813
opj_jp2_write_colr(opj_jp2_t * jp2,OPJ_UINT32 * p_nb_bytes_written)814 static OPJ_BYTE * opj_jp2_write_colr(opj_jp2_t *jp2,
815 OPJ_UINT32 * p_nb_bytes_written
816 )
817 {
818 /* room for 8 bytes for box 3 for common data and variable upon profile*/
819 OPJ_UINT32 l_colr_size = 11;
820 OPJ_BYTE * l_colr_data, * l_current_colr_ptr;
821
822 /* preconditions */
823 assert(jp2 != 00);
824 assert(p_nb_bytes_written != 00);
825 assert(jp2->meth == 1 || jp2->meth == 2);
826
827 switch (jp2->meth) {
828 case 1 :
829 l_colr_size += 4; /* EnumCS */
830 break;
831 case 2 :
832 assert(jp2->color.icc_profile_len); /* ICC profile */
833 l_colr_size += jp2->color.icc_profile_len;
834 break;
835 default :
836 return 00;
837 }
838
839 l_colr_data = (OPJ_BYTE *) opj_calloc(1, l_colr_size);
840 if (l_colr_data == 00) {
841 return 00;
842 }
843
844 l_current_colr_ptr = l_colr_data;
845
846 opj_write_bytes(l_current_colr_ptr, l_colr_size,
847 4); /* write box size */
848 l_current_colr_ptr += 4;
849
850 opj_write_bytes(l_current_colr_ptr, JP2_COLR, 4); /* BPCC */
851 l_current_colr_ptr += 4;
852
853 opj_write_bytes(l_current_colr_ptr, jp2->meth, 1); /* METH */
854 ++l_current_colr_ptr;
855
856 opj_write_bytes(l_current_colr_ptr, jp2->precedence, 1); /* PRECEDENCE */
857 ++l_current_colr_ptr;
858
859 opj_write_bytes(l_current_colr_ptr, jp2->approx, 1); /* APPROX */
860 ++l_current_colr_ptr;
861
862 if (jp2->meth ==
863 1) { /* Meth value is restricted to 1 or 2 (Table I.9 of part 1) */
864 opj_write_bytes(l_current_colr_ptr, jp2->enumcs, 4);
865 } /* EnumCS */
866 else {
867 if (jp2->meth == 2) { /* ICC profile */
868 OPJ_UINT32 i;
869 for (i = 0; i < jp2->color.icc_profile_len; ++i) {
870 opj_write_bytes(l_current_colr_ptr, jp2->color.icc_profile_buf[i], 1);
871 ++l_current_colr_ptr;
872 }
873 }
874 }
875
876 *p_nb_bytes_written = l_colr_size;
877
878 return l_colr_data;
879 }
880
opj_jp2_free_pclr(opj_jp2_color_t * color)881 static void opj_jp2_free_pclr(opj_jp2_color_t *color)
882 {
883 opj_free(color->jp2_pclr->channel_sign);
884 opj_free(color->jp2_pclr->channel_size);
885 opj_free(color->jp2_pclr->entries);
886
887 if (color->jp2_pclr->cmap) {
888 opj_free(color->jp2_pclr->cmap);
889 }
890
891 opj_free(color->jp2_pclr);
892 color->jp2_pclr = NULL;
893 }
894
opj_jp2_check_color(opj_image_t * image,opj_jp2_color_t * color,opj_event_mgr_t * p_manager)895 static OPJ_BOOL opj_jp2_check_color(opj_image_t *image, opj_jp2_color_t *color,
896 opj_event_mgr_t *p_manager)
897 {
898 OPJ_UINT16 i;
899
900 /* testcase 4149.pdf.SIGSEGV.cf7.3501 */
901 if (color->jp2_cdef) {
902 opj_jp2_cdef_info_t *info = color->jp2_cdef->info;
903 OPJ_UINT16 n = color->jp2_cdef->n;
904 OPJ_UINT32 nr_channels =
905 image->numcomps; /* FIXME image->numcomps == jp2->numcomps before color is applied ??? */
906
907 /* cdef applies to cmap channels if any */
908 if (color->jp2_pclr && color->jp2_pclr->cmap) {
909 nr_channels = (OPJ_UINT32)color->jp2_pclr->nr_channels;
910 }
911
912 for (i = 0; i < n; i++) {
913 if (info[i].cn >= nr_channels) {
914 opj_event_msg(p_manager, EVT_ERROR, "Invalid component index %d (>= %d).\n",
915 info[i].cn, nr_channels);
916 return OPJ_FALSE;
917 }
918 if (info[i].asoc == 65535U) {
919 continue;
920 }
921
922 if (info[i].asoc > 0 && (OPJ_UINT32)(info[i].asoc - 1) >= nr_channels) {
923 opj_event_msg(p_manager, EVT_ERROR, "Invalid component index %d (>= %d).\n",
924 info[i].asoc - 1, nr_channels);
925 return OPJ_FALSE;
926 }
927 }
928
929 /* issue 397 */
930 /* ISO 15444-1 states that if cdef is present, it shall contain a complete list of channel definitions. */
931 while (nr_channels > 0) {
932 for (i = 0; i < n; ++i) {
933 if ((OPJ_UINT32)info[i].cn == (nr_channels - 1U)) {
934 break;
935 }
936 }
937 if (i == n) {
938 opj_event_msg(p_manager, EVT_ERROR, "Incomplete channel definitions.\n");
939 return OPJ_FALSE;
940 }
941 --nr_channels;
942 }
943 }
944
945 /* testcases 451.pdf.SIGSEGV.f4c.3723, 451.pdf.SIGSEGV.5b5.3723 and
946 66ea31acbb0f23a2bbc91f64d69a03f5_signal_sigsegv_13937c0_7030_5725.pdf */
947 if (color->jp2_pclr && color->jp2_pclr->cmap) {
948 OPJ_UINT16 nr_channels = color->jp2_pclr->nr_channels;
949 opj_jp2_cmap_comp_t *cmap = color->jp2_pclr->cmap;
950 OPJ_BOOL *pcol_usage, is_sane = OPJ_TRUE;
951
952 /* verify that all original components match an existing one */
953 for (i = 0; i < nr_channels; i++) {
954 if (cmap[i].cmp >= image->numcomps) {
955 opj_event_msg(p_manager, EVT_ERROR, "Invalid component index %d (>= %d).\n",
956 cmap[i].cmp, image->numcomps);
957 is_sane = OPJ_FALSE;
958 }
959 }
960
961 pcol_usage = (OPJ_BOOL *) opj_calloc(nr_channels, sizeof(OPJ_BOOL));
962 if (!pcol_usage) {
963 opj_event_msg(p_manager, EVT_ERROR, "Unexpected OOM.\n");
964 return OPJ_FALSE;
965 }
966 /* verify that no component is targeted more than once */
967 for (i = 0; i < nr_channels; i++) {
968 OPJ_BYTE mtyp = cmap[i].mtyp;
969 OPJ_BYTE pcol = cmap[i].pcol;
970 /* See ISO 15444-1 Table I.14 – MTYPi field values */
971 if (mtyp != 0 && mtyp != 1) {
972 opj_event_msg(p_manager, EVT_ERROR,
973 "Invalid value for cmap[%d].mtyp = %d.\n", i,
974 mtyp);
975 is_sane = OPJ_FALSE;
976 } else if (pcol >= nr_channels) {
977 opj_event_msg(p_manager, EVT_ERROR,
978 "Invalid component/palette index for direct mapping %d.\n", pcol);
979 is_sane = OPJ_FALSE;
980 } else if (pcol_usage[pcol] && mtyp == 1) {
981 opj_event_msg(p_manager, EVT_ERROR, "Component %d is mapped twice.\n", pcol);
982 is_sane = OPJ_FALSE;
983 } else if (mtyp == 0 && pcol != 0) {
984 /* I.5.3.5 PCOL: If the value of the MTYP field for this channel is 0, then
985 * the value of this field shall be 0. */
986 opj_event_msg(p_manager, EVT_ERROR, "Direct use at #%d however pcol=%d.\n", i,
987 pcol);
988 is_sane = OPJ_FALSE;
989 } else if (mtyp == 1 && pcol != i) {
990 /* OpenJPEG implementation limitation. See assert(i == pcol); */
991 /* in opj_jp2_apply_pclr() */
992 opj_event_msg(p_manager, EVT_ERROR,
993 "Implementation limitation: for palette mapping, "
994 "pcol[%d] should be equal to %d, but is equal "
995 "to %d.\n", i, i, pcol);
996 is_sane = OPJ_FALSE;
997 } else {
998 pcol_usage[pcol] = OPJ_TRUE;
999 }
1000 }
1001 /* verify that all components are targeted at least once */
1002 for (i = 0; i < nr_channels; i++) {
1003 if (!pcol_usage[i] && cmap[i].mtyp != 0) {
1004 opj_event_msg(p_manager, EVT_ERROR, "Component %d doesn't have a mapping.\n",
1005 i);
1006 is_sane = OPJ_FALSE;
1007 }
1008 }
1009 /* Issue 235/447 weird cmap */
1010 if (1 && is_sane && (image->numcomps == 1U)) {
1011 for (i = 0; i < nr_channels; i++) {
1012 if (!pcol_usage[i]) {
1013 is_sane = 0U;
1014 opj_event_msg(p_manager, EVT_WARNING,
1015 "Component mapping seems wrong. Trying to correct.\n");
1016 break;
1017 }
1018 }
1019 if (!is_sane) {
1020 is_sane = OPJ_TRUE;
1021 for (i = 0; i < nr_channels; i++) {
1022 cmap[i].mtyp = 1U;
1023 cmap[i].pcol = (OPJ_BYTE) i;
1024 }
1025 }
1026 }
1027 opj_free(pcol_usage);
1028 if (!is_sane) {
1029 return OPJ_FALSE;
1030 }
1031 }
1032
1033 return OPJ_TRUE;
1034 }
1035
1036 /* file9.jp2 */
opj_jp2_apply_pclr(opj_image_t * image,opj_jp2_color_t * color,opj_event_mgr_t * p_manager)1037 static OPJ_BOOL opj_jp2_apply_pclr(opj_image_t *image,
1038 opj_jp2_color_t *color,
1039 opj_event_mgr_t * p_manager)
1040 {
1041 opj_image_comp_t *old_comps, *new_comps;
1042 OPJ_BYTE *channel_size, *channel_sign;
1043 OPJ_UINT32 *entries;
1044 opj_jp2_cmap_comp_t *cmap;
1045 OPJ_INT32 *src, *dst;
1046 OPJ_UINT32 j, max;
1047 OPJ_UINT16 i, nr_channels, cmp, pcol;
1048 OPJ_INT32 k, top_k;
1049
1050 channel_size = color->jp2_pclr->channel_size;
1051 channel_sign = color->jp2_pclr->channel_sign;
1052 entries = color->jp2_pclr->entries;
1053 cmap = color->jp2_pclr->cmap;
1054 nr_channels = color->jp2_pclr->nr_channels;
1055
1056 for (i = 0; i < nr_channels; ++i) {
1057 /* Palette mapping: */
1058 cmp = cmap[i].cmp;
1059 if (image->comps[cmp].data == NULL) {
1060 opj_event_msg(p_manager, EVT_ERROR,
1061 "image->comps[%d].data == NULL in opj_jp2_apply_pclr().\n", i);
1062 return OPJ_FALSE;
1063 }
1064 }
1065
1066 old_comps = image->comps;
1067 /* Overflow check: prevent integer overflow */
1068 for (i = 0; i < nr_channels; ++i) {
1069 cmp = cmap[i].cmp;
1070 if (old_comps[cmp].h == 0 || old_comps[cmp].w > ((OPJ_UINT32)-1) / sizeof(OPJ_INT32) / old_comps[cmp].h) {
1071 return OPJ_FALSE;
1072 }
1073 }
1074
1075 new_comps = (opj_image_comp_t*)
1076 opj_malloc(nr_channels * sizeof(opj_image_comp_t));
1077 if (!new_comps) {
1078 opj_event_msg(p_manager, EVT_ERROR,
1079 "Memory allocation failure in opj_jp2_apply_pclr().\n");
1080 return OPJ_FALSE;
1081 }
1082 for (i = 0; i < nr_channels; ++i) {
1083 pcol = cmap[i].pcol;
1084 cmp = cmap[i].cmp;
1085
1086 /* Direct use */
1087 if (cmap[i].mtyp == 0) {
1088 assert(pcol == 0);
1089 new_comps[i] = old_comps[cmp];
1090 } else {
1091 assert( i == pcol ); // probably wrong?
1092 new_comps[i] = old_comps[cmp];
1093 }
1094
1095 /* Palette mapping: */
1096 new_comps[i].data = (OPJ_INT32*)
1097 opj_image_data_alloc(sizeof(OPJ_INT32) * old_comps[cmp].w * old_comps[cmp].h);
1098 if (!new_comps[i].data) {
1099 while (i > 0) {
1100 -- i;
1101 opj_image_data_free(new_comps[i].data);
1102 }
1103 opj_free(new_comps);
1104 opj_event_msg(p_manager, EVT_ERROR,
1105 "Memory allocation failure in opj_jp2_apply_pclr().\n");
1106 return OPJ_FALSE;
1107 }
1108 new_comps[i].prec = channel_size[i];
1109 new_comps[i].sgnd = channel_sign[i];
1110 }
1111
1112 top_k = color->jp2_pclr->nr_entries - 1;
1113
1114 for (i = 0; i < nr_channels; ++i) {
1115 /* Palette mapping: */
1116 cmp = cmap[i].cmp;
1117 pcol = cmap[i].pcol;
1118 src = old_comps[cmp].data;
1119 dst = new_comps[i].data;
1120 max = new_comps[i].w * new_comps[i].h;
1121
1122 /* Prevent null pointer access */
1123 if (!src || !dst) {
1124 for (j = 0; j < nr_channels; ++j) {
1125 opj_image_data_free(new_comps[j].data);
1126 }
1127 opj_free(new_comps);
1128 new_comps = NULL;
1129 return OPJ_FALSE;
1130 }
1131
1132 /* Direct use: */
1133 if (cmap[i].mtyp == 0) {
1134 for (j = 0; j < max; ++j) {
1135 dst[j] = src[j];
1136 }
1137 } else {
1138 assert( i == pcol ); // probably wrong?
1139 for (j = 0; j < max; ++j) {
1140 /* The index */
1141 if ((k = src[j]) < 0) {
1142 k = 0;
1143 } else if (k > top_k) {
1144 k = top_k;
1145 }
1146
1147 /* The colour */
1148 dst[j] = (OPJ_INT32)entries[k * nr_channels + pcol];
1149 }
1150 }
1151 }
1152
1153 max = image->numcomps;
1154 for (j = 0; j < max; ++j) {
1155 if (old_comps[j].data) {
1156 opj_image_data_free(old_comps[j].data);
1157 }
1158 }
1159
1160 opj_free(old_comps);
1161 image->comps = new_comps;
1162 image->numcomps = nr_channels;
1163
1164 return OPJ_TRUE;
1165 }/* apply_pclr() */
1166
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)1167 static OPJ_BOOL opj_jp2_read_pclr(opj_jp2_t *jp2,
1168 OPJ_BYTE * p_pclr_header_data,
1169 OPJ_UINT32 p_pclr_header_size,
1170 opj_event_mgr_t * p_manager
1171 )
1172 {
1173 opj_jp2_pclr_t *jp2_pclr;
1174 OPJ_BYTE *channel_size, *channel_sign;
1175 OPJ_UINT32 *entries;
1176 OPJ_UINT16 nr_entries, nr_channels;
1177 OPJ_UINT16 i, j;
1178 OPJ_UINT32 l_value;
1179 OPJ_BYTE *orig_header_data = p_pclr_header_data;
1180
1181 /* preconditions */
1182 assert(p_pclr_header_data != 00);
1183 assert(jp2 != 00);
1184 assert(p_manager != 00);
1185 (void)p_pclr_header_size;
1186
1187 if (jp2->color.jp2_pclr) {
1188 return OPJ_FALSE;
1189 }
1190
1191 if (p_pclr_header_size < 3) {
1192 return OPJ_FALSE;
1193 }
1194
1195 opj_read_bytes(p_pclr_header_data, &l_value, 2); /* NE */
1196 p_pclr_header_data += 2;
1197 nr_entries = (OPJ_UINT16) l_value;
1198 if ((nr_entries == 0U) || (nr_entries > 1024U)) {
1199 opj_event_msg(p_manager, EVT_ERROR, "Invalid PCLR box. Reports %d entries\n",
1200 (int)nr_entries);
1201 return OPJ_FALSE;
1202 }
1203
1204 opj_read_bytes(p_pclr_header_data, &l_value, 1); /* NPC */
1205 ++p_pclr_header_data;
1206 nr_channels = (OPJ_UINT16) l_value;
1207 if (nr_channels == 0U) {
1208 opj_event_msg(p_manager, EVT_ERROR,
1209 "Invalid PCLR box. Reports 0 palette columns\n");
1210 return OPJ_FALSE;
1211 }
1212
1213 if (p_pclr_header_size < 3 + (OPJ_UINT32)nr_channels) {
1214 return OPJ_FALSE;
1215 }
1216
1217 entries = (OPJ_UINT32*) opj_malloc(sizeof(OPJ_UINT32) * nr_channels *
1218 nr_entries);
1219 if (!entries) {
1220 return OPJ_FALSE;
1221 }
1222 channel_size = (OPJ_BYTE*) opj_malloc(nr_channels);
1223 if (!channel_size) {
1224 opj_free(entries);
1225 return OPJ_FALSE;
1226 }
1227 channel_sign = (OPJ_BYTE*) opj_malloc(nr_channels);
1228 if (!channel_sign) {
1229 opj_free(entries);
1230 opj_free(channel_size);
1231 return OPJ_FALSE;
1232 }
1233
1234 jp2_pclr = (opj_jp2_pclr_t*)opj_malloc(sizeof(opj_jp2_pclr_t));
1235 if (!jp2_pclr) {
1236 opj_free(entries);
1237 opj_free(channel_size);
1238 opj_free(channel_sign);
1239 return OPJ_FALSE;
1240 }
1241
1242 jp2_pclr->channel_sign = channel_sign;
1243 jp2_pclr->channel_size = channel_size;
1244 jp2_pclr->entries = entries;
1245 jp2_pclr->nr_entries = nr_entries;
1246 jp2_pclr->nr_channels = (OPJ_BYTE) l_value;
1247 jp2_pclr->cmap = NULL;
1248
1249 jp2->color.jp2_pclr = jp2_pclr;
1250
1251 for (i = 0; i < nr_channels; ++i) {
1252 opj_read_bytes(p_pclr_header_data, &l_value, 1); /* Bi */
1253 ++p_pclr_header_data;
1254
1255 channel_size[i] = (OPJ_BYTE)((l_value & 0x7f) + 1);
1256 channel_sign[i] = (l_value & 0x80) ? 1 : 0;
1257 }
1258
1259 for (j = 0; j < nr_entries; ++j) {
1260 for (i = 0; i < nr_channels; ++i) {
1261 OPJ_UINT32 bytes_to_read = (OPJ_UINT32)((channel_size[i] + 7) >> 3);
1262
1263 if (bytes_to_read > sizeof(OPJ_UINT32)) {
1264 bytes_to_read = sizeof(OPJ_UINT32);
1265 }
1266 if ((ptrdiff_t)p_pclr_header_size < (ptrdiff_t)(p_pclr_header_data -
1267 orig_header_data) + (ptrdiff_t)bytes_to_read) {
1268 return OPJ_FALSE;
1269 }
1270
1271 opj_read_bytes(p_pclr_header_data, &l_value, bytes_to_read); /* Cji */
1272 p_pclr_header_data += bytes_to_read;
1273 *entries = (OPJ_UINT32) l_value;
1274 entries++;
1275 }
1276 }
1277
1278 return OPJ_TRUE;
1279 }
1280
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)1281 static OPJ_BOOL opj_jp2_read_cmap(opj_jp2_t * jp2,
1282 OPJ_BYTE * p_cmap_header_data,
1283 OPJ_UINT32 p_cmap_header_size,
1284 opj_event_mgr_t * p_manager
1285 )
1286 {
1287 opj_jp2_cmap_comp_t *cmap;
1288 OPJ_BYTE i, nr_channels;
1289 OPJ_UINT32 l_value;
1290
1291 /* preconditions */
1292 assert(jp2 != 00);
1293 assert(p_cmap_header_data != 00);
1294 assert(p_manager != 00);
1295 (void)p_cmap_header_size;
1296
1297 /* Need nr_channels: */
1298 if (jp2->color.jp2_pclr == NULL) {
1299 opj_event_msg(p_manager, EVT_ERROR,
1300 "Need to read a PCLR box before the CMAP box.\n");
1301 return OPJ_FALSE;
1302 }
1303
1304 /* Part 1, I.5.3.5: 'There shall be at most one Component Mapping box
1305 * inside a JP2 Header box' :
1306 */
1307 if (jp2->color.jp2_pclr->cmap) {
1308 opj_event_msg(p_manager, EVT_ERROR, "Only one CMAP box is allowed.\n");
1309 return OPJ_FALSE;
1310 }
1311
1312 nr_channels = jp2->color.jp2_pclr->nr_channels;
1313 if (p_cmap_header_size < (OPJ_UINT32)nr_channels * 4) {
1314 opj_event_msg(p_manager, EVT_ERROR, "Insufficient data for CMAP box.\n");
1315 return OPJ_FALSE;
1316 }
1317
1318 cmap = (opj_jp2_cmap_comp_t*) opj_malloc(nr_channels * sizeof(
1319 opj_jp2_cmap_comp_t));
1320 if (!cmap) {
1321 return OPJ_FALSE;
1322 }
1323
1324
1325 for (i = 0; i < nr_channels; ++i) {
1326 opj_read_bytes_BE(p_cmap_header_data, &l_value, 2); /* CMP^i */
1327 p_cmap_header_data += 2;
1328 cmap[i].cmp = (OPJ_UINT16) l_value;
1329
1330 opj_read_bytes(p_cmap_header_data, &l_value, 1); /* MTYP^i */
1331 ++p_cmap_header_data;
1332 cmap[i].mtyp = (OPJ_BYTE) l_value;
1333
1334 opj_read_bytes(p_cmap_header_data, &l_value, 1); /* PCOL^i */
1335 ++p_cmap_header_data;
1336 cmap[i].pcol = (OPJ_BYTE) l_value;
1337 }
1338
1339 jp2->color.jp2_pclr->cmap = cmap;
1340
1341 return OPJ_TRUE;
1342 }
1343
opj_jp2_apply_cdef(opj_image_t * image,opj_jp2_color_t * color,opj_event_mgr_t * manager)1344 static void opj_jp2_apply_cdef(opj_image_t *image, opj_jp2_color_t *color,
1345 opj_event_mgr_t *manager)
1346 {
1347 opj_jp2_cdef_info_t *info;
1348 OPJ_UINT16 i, n, cn, asoc, acn;
1349
1350 info = color->jp2_cdef->info;
1351 n = color->jp2_cdef->n;
1352
1353 for (i = 0; i < n; ++i) {
1354 /* WATCH: acn = asoc - 1 ! */
1355 asoc = info[i].asoc;
1356 cn = info[i].cn;
1357
1358 if (cn >= image->numcomps) {
1359 opj_event_msg(manager, EVT_WARNING, "opj_jp2_apply_cdef: cn=%d, numcomps=%d\n",
1360 cn, image->numcomps);
1361 continue;
1362 }
1363 if (asoc == 0 || asoc == 65535) {
1364 image->comps[cn].alpha = info[i].typ;
1365 continue;
1366 }
1367
1368 acn = (OPJ_UINT16)(asoc - 1);
1369 if (acn >= image->numcomps) {
1370 opj_event_msg(manager, EVT_WARNING, "opj_jp2_apply_cdef: acn=%d, numcomps=%d\n",
1371 acn, image->numcomps);
1372 continue;
1373 }
1374
1375 /* Swap only if color channel */
1376 if ((cn != acn) && (info[i].typ == 0)) {
1377 opj_image_comp_t saved;
1378 OPJ_UINT16 j;
1379
1380 memcpy(&saved, &image->comps[cn], sizeof(opj_image_comp_t));
1381 memcpy(&image->comps[cn], &image->comps[acn], sizeof(opj_image_comp_t));
1382 memcpy(&image->comps[acn], &saved, sizeof(opj_image_comp_t));
1383
1384 /* Swap channels in following channel definitions, don't bother with j <= i that are already processed */
1385 for (j = (OPJ_UINT16)(i + 1U); j < n ; ++j) {
1386 if (info[j].cn == cn) {
1387 info[j].cn = acn;
1388 } else if (info[j].cn == acn) {
1389 info[j].cn = cn;
1390 }
1391 /* asoc is related to color index. Do not update. */
1392 }
1393 }
1394
1395 image->comps[cn].alpha = info[i].typ;
1396 }
1397
1398 if (color->jp2_cdef->info) {
1399 opj_free(color->jp2_cdef->info);
1400 }
1401
1402 opj_free(color->jp2_cdef);
1403 color->jp2_cdef = NULL;
1404
1405 }/* jp2_apply_cdef() */
1406
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)1407 static OPJ_BOOL opj_jp2_read_cdef(opj_jp2_t * jp2,
1408 OPJ_BYTE * p_cdef_header_data,
1409 OPJ_UINT32 p_cdef_header_size,
1410 opj_event_mgr_t * p_manager
1411 )
1412 {
1413 opj_jp2_cdef_info_t *cdef_info;
1414 OPJ_UINT16 i;
1415 OPJ_UINT32 l_value;
1416
1417 /* preconditions */
1418 assert(jp2 != 00);
1419 assert(p_cdef_header_data != 00);
1420 assert(p_manager != 00);
1421 (void)p_cdef_header_size;
1422
1423 /* Part 1, I.5.3.6: 'The shall be at most one Channel Definition box
1424 * inside a JP2 Header box.'*/
1425 if (jp2->color.jp2_cdef) {
1426 return OPJ_FALSE;
1427 }
1428
1429 if (p_cdef_header_size < 2) {
1430 opj_event_msg(p_manager, EVT_ERROR, "Insufficient data for CDEF box.\n");
1431 return OPJ_FALSE;
1432 }
1433
1434 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* N */
1435 p_cdef_header_data += 2;
1436
1437 if ((OPJ_UINT16)l_value == 0) { /* szukw000: FIXME */
1438 opj_event_msg(p_manager, EVT_ERROR,
1439 "Number of channel description is equal to zero in CDEF box.\n");
1440 return OPJ_FALSE;
1441 }
1442
1443 if (p_cdef_header_size < 2 + (OPJ_UINT32)(OPJ_UINT16)l_value * 6) {
1444 opj_event_msg(p_manager, EVT_ERROR, "Insufficient data for CDEF box.\n");
1445 return OPJ_FALSE;
1446 }
1447
1448 cdef_info = (opj_jp2_cdef_info_t*) opj_malloc(l_value * sizeof(
1449 opj_jp2_cdef_info_t));
1450 if (!cdef_info) {
1451 return OPJ_FALSE;
1452 }
1453
1454 jp2->color.jp2_cdef = (opj_jp2_cdef_t*)opj_malloc(sizeof(opj_jp2_cdef_t));
1455 if (!jp2->color.jp2_cdef) {
1456 opj_free(cdef_info);
1457 return OPJ_FALSE;
1458 }
1459 jp2->color.jp2_cdef->info = cdef_info;
1460 jp2->color.jp2_cdef->n = (OPJ_UINT16) l_value;
1461
1462 for (i = 0; i < jp2->color.jp2_cdef->n; ++i) {
1463 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Cn^i */
1464 p_cdef_header_data += 2;
1465 cdef_info[i].cn = (OPJ_UINT16) l_value;
1466
1467 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Typ^i */
1468 p_cdef_header_data += 2;
1469 cdef_info[i].typ = (OPJ_UINT16) l_value;
1470
1471 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Asoc^i */
1472 p_cdef_header_data += 2;
1473 cdef_info[i].asoc = (OPJ_UINT16) l_value;
1474 }
1475
1476 return OPJ_TRUE;
1477 }
1478
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)1479 static OPJ_BOOL opj_jp2_read_colr(opj_jp2_t *jp2,
1480 OPJ_BYTE * p_colr_header_data,
1481 OPJ_UINT32 p_colr_header_size,
1482 opj_event_mgr_t * p_manager
1483 )
1484 {
1485 OPJ_UINT32 l_value;
1486
1487 /* preconditions */
1488 assert(jp2 != 00);
1489 assert(p_colr_header_data != 00);
1490 assert(p_manager != 00);
1491
1492 if (p_colr_header_size < 3) {
1493 opj_event_msg(p_manager, EVT_ERROR, "Bad COLR header box (bad size)\n");
1494 return OPJ_FALSE;
1495 }
1496
1497 /* Part 1, I.5.3.3 : 'A conforming JP2 reader shall ignore all Colour
1498 * Specification boxes after the first.'
1499 */
1500 if (jp2->color.jp2_has_colr) {
1501 opj_event_msg(p_manager, EVT_INFO,
1502 "A conforming JP2 reader shall ignore all Colour Specification boxes after the first, so we ignore this one.\n");
1503 p_colr_header_data += p_colr_header_size;
1504 return OPJ_TRUE;
1505 }
1506
1507 opj_read_bytes(p_colr_header_data, &jp2->meth, 1); /* METH */
1508 ++p_colr_header_data;
1509
1510 opj_read_bytes(p_colr_header_data, &jp2->precedence, 1); /* PRECEDENCE */
1511 ++p_colr_header_data;
1512
1513 opj_read_bytes(p_colr_header_data, &jp2->approx, 1); /* APPROX */
1514 ++p_colr_header_data;
1515
1516 if (jp2->meth == 1) {
1517 if (p_colr_header_size < 7) {
1518 opj_event_msg(p_manager, EVT_ERROR, "Bad COLR header box (bad size: %d)\n",
1519 p_colr_header_size);
1520 return OPJ_FALSE;
1521 }
1522 if ((p_colr_header_size > 7) &&
1523 (jp2->enumcs != 14)) { /* handled below for CIELab) */
1524 /* testcase Altona_Technical_v20_x4.pdf */
1525 opj_event_msg(p_manager, EVT_WARNING, "Bad COLR header box (bad size: %d)\n",
1526 p_colr_header_size);
1527 }
1528
1529 opj_read_bytes(p_colr_header_data, &jp2->enumcs, 4); /* EnumCS */
1530
1531 p_colr_header_data += 4;
1532
1533 if (jp2->enumcs == 14) { /* CIELab */
1534 OPJ_UINT32 *cielab;
1535 OPJ_UINT32 rl, ol, ra, oa, rb, ob, il;
1536
1537 cielab = (OPJ_UINT32*)opj_malloc(9 * sizeof(OPJ_UINT32));
1538 if (cielab == NULL) {
1539 opj_event_msg(p_manager, EVT_ERROR, "Not enough memory for cielab\n");
1540 return OPJ_FALSE;
1541 }
1542 cielab[0] = 14; /* enumcs */
1543
1544 /* default values */
1545 rl = ra = rb = ol = oa = ob = 0;
1546 il = 0x00443530; /* D50 */
1547 cielab[1] = 0x44454600;/* DEF */
1548
1549 if (p_colr_header_size == 35) {
1550 opj_read_bytes(p_colr_header_data, &rl, 4);
1551 p_colr_header_data += 4;
1552 opj_read_bytes(p_colr_header_data, &ol, 4);
1553 p_colr_header_data += 4;
1554 opj_read_bytes(p_colr_header_data, &ra, 4);
1555 p_colr_header_data += 4;
1556 opj_read_bytes(p_colr_header_data, &oa, 4);
1557 p_colr_header_data += 4;
1558 opj_read_bytes(p_colr_header_data, &rb, 4);
1559 p_colr_header_data += 4;
1560 opj_read_bytes(p_colr_header_data, &ob, 4);
1561 p_colr_header_data += 4;
1562 opj_read_bytes(p_colr_header_data, &il, 4);
1563 p_colr_header_data += 4;
1564
1565 cielab[1] = 0;
1566 } else if (p_colr_header_size != 7) {
1567 opj_event_msg(p_manager, EVT_WARNING,
1568 "Bad COLR header box (CIELab, bad size: %d)\n", p_colr_header_size);
1569 }
1570 cielab[2] = rl;
1571 cielab[4] = ra;
1572 cielab[6] = rb;
1573 cielab[3] = ol;
1574 cielab[5] = oa;
1575 cielab[7] = ob;
1576 cielab[8] = il;
1577
1578 jp2->color.icc_profile_buf = (OPJ_BYTE*)cielab;
1579 jp2->color.icc_profile_len = 0;
1580 }
1581 jp2->color.jp2_has_colr = 1;
1582 } else if (jp2->meth == 2) {
1583 /* ICC profile */
1584 OPJ_INT32 it_icc_value = 0;
1585 OPJ_INT32 icc_len = (OPJ_INT32)p_colr_header_size - 3;
1586
1587 jp2->color.icc_profile_len = (OPJ_UINT32)icc_len;
1588 jp2->color.icc_profile_buf = (OPJ_BYTE*) opj_calloc(1, (size_t)icc_len);
1589 if (!jp2->color.icc_profile_buf) {
1590 jp2->color.icc_profile_len = 0;
1591 return OPJ_FALSE;
1592 }
1593
1594 for (it_icc_value = 0; it_icc_value < icc_len; ++it_icc_value) {
1595 opj_read_bytes(p_colr_header_data, &l_value, 1); /* icc values */
1596 ++p_colr_header_data;
1597 jp2->color.icc_profile_buf[it_icc_value] = (OPJ_BYTE) l_value;
1598 }
1599
1600 jp2->color.jp2_has_colr = 1;
1601 } else if (jp2->meth > 2) {
1602 /* ISO/IEC 15444-1:2004 (E), Table I.9 Legal METH values:
1603 conforming JP2 reader shall ignore the entire Colour Specification box.*/
1604 opj_event_msg(p_manager, EVT_INFO,
1605 "COLR BOX meth value is not a regular value (%d), "
1606 "so we will ignore the entire Colour Specification box. \n", jp2->meth);
1607 }
1608
1609 return OPJ_TRUE;
1610 }
1611
opj_jp2_decode(opj_jp2_t * jp2,opj_stream_private_t * p_stream,opj_image_t * p_image,opj_event_mgr_t * p_manager)1612 OPJ_BOOL opj_jp2_decode(opj_jp2_t *jp2,
1613 opj_stream_private_t *p_stream,
1614 opj_image_t* p_image,
1615 opj_event_mgr_t * p_manager)
1616 {
1617 if (!p_image) {
1618 return OPJ_FALSE;
1619 }
1620
1621 /* J2K decoding */
1622 if (! opj_j2k_decode(jp2->j2k, p_stream, p_image, p_manager)) {
1623 opj_event_msg(p_manager, EVT_ERROR,
1624 "Failed to decode the codestream in the JP2 file\n");
1625 return OPJ_FALSE;
1626 }
1627
1628 if (jp2->j2k->m_specific_param.m_decoder.m_numcomps_to_decode) {
1629 /* Bypass all JP2 component transforms */
1630 return OPJ_TRUE;
1631 }
1632
1633 if (!jp2->ignore_pclr_cmap_cdef) {
1634 if (!opj_jp2_check_color(p_image, &(jp2->color), p_manager)) {
1635 return OPJ_FALSE;
1636 }
1637
1638 /* Set Image Color Space */
1639 if (jp2->enumcs == 16) {
1640 p_image->color_space = OPJ_CLRSPC_SRGB;
1641 } else if (jp2->enumcs == 17) {
1642 p_image->color_space = OPJ_CLRSPC_GRAY;
1643 } else if (jp2->enumcs == 18) {
1644 p_image->color_space = OPJ_CLRSPC_SYCC;
1645 } else if (jp2->enumcs == 24) {
1646 p_image->color_space = OPJ_CLRSPC_EYCC;
1647 } else if (jp2->enumcs == 12) {
1648 p_image->color_space = OPJ_CLRSPC_CMYK;
1649 } else {
1650 p_image->color_space = OPJ_CLRSPC_UNKNOWN;
1651 }
1652
1653 if (jp2->color.jp2_pclr) {
1654 /* Part 1, I.5.3.4: Either both or none : */
1655 if (!jp2->color.jp2_pclr->cmap) {
1656 opj_jp2_free_pclr(&(jp2->color));
1657 } else {
1658 if (!opj_jp2_apply_pclr(p_image, &(jp2->color), p_manager)) {
1659 return OPJ_FALSE;
1660 }
1661 }
1662 }
1663
1664 /* Apply the color space if needed */
1665 if (jp2->color.jp2_cdef) {
1666 opj_jp2_apply_cdef(p_image, &(jp2->color), p_manager);
1667 }
1668
1669 if (jp2->color.icc_profile_buf) {
1670 p_image->icc_profile_buf = jp2->color.icc_profile_buf;
1671 p_image->icc_profile_len = jp2->color.icc_profile_len;
1672 jp2->color.icc_profile_buf = NULL;
1673 }
1674 }
1675
1676 return OPJ_TRUE;
1677 }
1678
opj_jp2_write_jp2h(opj_jp2_t * jp2,opj_stream_private_t * stream,opj_event_mgr_t * p_manager)1679 static OPJ_BOOL opj_jp2_write_jp2h(opj_jp2_t *jp2,
1680 opj_stream_private_t *stream,
1681 opj_event_mgr_t * p_manager
1682 )
1683 {
1684 opj_jp2_img_header_writer_handler_t l_writers [4];
1685 opj_jp2_img_header_writer_handler_t * l_current_writer;
1686
1687 OPJ_INT32 i, l_nb_pass;
1688 /* size of data for super box*/
1689 OPJ_UINT32 l_jp2h_size = 8;
1690 OPJ_BOOL l_result = OPJ_TRUE;
1691
1692 /* to store the data of the super box */
1693 OPJ_BYTE l_jp2h_data [8];
1694
1695 /* preconditions */
1696 assert(stream != 00);
1697 assert(jp2 != 00);
1698 assert(p_manager != 00);
1699
1700 memset(l_writers, 0, sizeof(l_writers));
1701
1702 if (jp2->bpc == 255) {
1703 l_nb_pass = 3;
1704 l_writers[0].handler = opj_jp2_write_ihdr;
1705 l_writers[1].handler = opj_jp2_write_bpcc;
1706 l_writers[2].handler = opj_jp2_write_colr;
1707 } else {
1708 l_nb_pass = 2;
1709 l_writers[0].handler = opj_jp2_write_ihdr;
1710 l_writers[1].handler = opj_jp2_write_colr;
1711 }
1712
1713 if (jp2->color.jp2_cdef != NULL) {
1714 l_writers[l_nb_pass].handler = opj_jp2_write_cdef;
1715 l_nb_pass++;
1716 }
1717
1718 /* write box header */
1719 /* write JP2H type */
1720 opj_write_bytes(l_jp2h_data + 4, JP2_JP2H, 4);
1721
1722 l_current_writer = l_writers;
1723 for (i = 0; i < l_nb_pass; ++i) {
1724 l_current_writer->m_data = l_current_writer->handler(jp2,
1725 &(l_current_writer->m_size));
1726 if (l_current_writer->m_data == 00) {
1727 opj_event_msg(p_manager, EVT_ERROR,
1728 "Not enough memory to hold JP2 Header data\n");
1729 l_result = OPJ_FALSE;
1730 break;
1731 }
1732
1733 l_jp2h_size += l_current_writer->m_size;
1734 ++l_current_writer;
1735 }
1736
1737 if (! l_result) {
1738 l_current_writer = l_writers;
1739 for (i = 0; i < l_nb_pass; ++i) {
1740 if (l_current_writer->m_data != 00) {
1741 opj_free(l_current_writer->m_data);
1742 }
1743 ++l_current_writer;
1744 }
1745
1746 return OPJ_FALSE;
1747 }
1748
1749 /* write super box size */
1750 opj_write_bytes(l_jp2h_data, l_jp2h_size, 4);
1751
1752 /* write super box data on stream */
1753 if (opj_stream_write_data(stream, l_jp2h_data, 8, p_manager) != 8) {
1754 opj_event_msg(p_manager, EVT_ERROR,
1755 "Stream error while writing JP2 Header box\n");
1756 l_result = OPJ_FALSE;
1757 }
1758
1759 if (l_result) {
1760 l_current_writer = l_writers;
1761 for (i = 0; i < l_nb_pass; ++i) {
1762 if (opj_stream_write_data(stream, l_current_writer->m_data,
1763 l_current_writer->m_size, p_manager) != l_current_writer->m_size) {
1764 opj_event_msg(p_manager, EVT_ERROR,
1765 "Stream error while writing JP2 Header box\n");
1766 l_result = OPJ_FALSE;
1767 break;
1768 }
1769 ++l_current_writer;
1770 }
1771 }
1772
1773 l_current_writer = l_writers;
1774
1775 /* cleanup */
1776 for (i = 0; i < l_nb_pass; ++i) {
1777 if (l_current_writer->m_data != 00) {
1778 opj_free(l_current_writer->m_data);
1779 }
1780 ++l_current_writer;
1781 }
1782
1783 return l_result;
1784 }
1785
opj_jp2_write_ftyp(opj_jp2_t * jp2,opj_stream_private_t * cio,opj_event_mgr_t * p_manager)1786 static OPJ_BOOL opj_jp2_write_ftyp(opj_jp2_t *jp2,
1787 opj_stream_private_t *cio,
1788 opj_event_mgr_t * p_manager)
1789 {
1790 OPJ_UINT32 i;
1791 OPJ_UINT32 l_ftyp_size;
1792 OPJ_BYTE * l_ftyp_data, * l_current_data_ptr;
1793 OPJ_BOOL l_result;
1794
1795 /* preconditions */
1796 assert(cio != 00);
1797 assert(jp2 != 00);
1798 assert(p_manager != 00);
1799 l_ftyp_size = 16 + 4 * jp2->numcl;
1800
1801 l_ftyp_data = (OPJ_BYTE *) opj_calloc(1, l_ftyp_size);
1802
1803 if (l_ftyp_data == 00) {
1804 opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to handle ftyp data\n");
1805 return OPJ_FALSE;
1806 }
1807
1808 l_current_data_ptr = l_ftyp_data;
1809
1810 opj_write_bytes(l_current_data_ptr, l_ftyp_size, 4); /* box size */
1811 l_current_data_ptr += 4;
1812
1813 opj_write_bytes(l_current_data_ptr, JP2_FTYP, 4); /* FTYP */
1814 l_current_data_ptr += 4;
1815
1816 opj_write_bytes(l_current_data_ptr, jp2->brand, 4); /* BR */
1817 l_current_data_ptr += 4;
1818
1819 opj_write_bytes(l_current_data_ptr, jp2->minversion, 4); /* MinV */
1820 l_current_data_ptr += 4;
1821
1822 for (i = 0; i < jp2->numcl; i++) {
1823 opj_write_bytes(l_current_data_ptr, jp2->cl[i], 4); /* CL */
1824 }
1825
1826 l_result = (opj_stream_write_data(cio, l_ftyp_data, l_ftyp_size,
1827 p_manager) == l_ftyp_size);
1828 if (! l_result) {
1829 opj_event_msg(p_manager, EVT_ERROR,
1830 "Error while writing ftyp data to stream\n");
1831 }
1832
1833 opj_free(l_ftyp_data);
1834
1835 return l_result;
1836 }
1837
opj_jp2_write_jp2c(opj_jp2_t * jp2,opj_stream_private_t * cio,opj_event_mgr_t * p_manager)1838 static OPJ_BOOL opj_jp2_write_jp2c(opj_jp2_t *jp2,
1839 opj_stream_private_t *cio,
1840 opj_event_mgr_t * p_manager)
1841 {
1842 OPJ_OFF_T j2k_codestream_exit;
1843 OPJ_BYTE l_data_header [8];
1844
1845 /* preconditions */
1846 assert(jp2 != 00);
1847 assert(cio != 00);
1848 assert(p_manager != 00);
1849 assert(opj_stream_has_seek(cio));
1850
1851 j2k_codestream_exit = opj_stream_tell(cio);
1852 opj_write_bytes(l_data_header,
1853 (OPJ_UINT32)(j2k_codestream_exit - jp2->j2k_codestream_offset),
1854 4); /* size of codestream */
1855 opj_write_bytes(l_data_header + 4, JP2_JP2C,
1856 4); /* JP2C */
1857
1858 if (! opj_stream_seek(cio, jp2->j2k_codestream_offset, p_manager)) {
1859 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
1860 return OPJ_FALSE;
1861 }
1862
1863 if (opj_stream_write_data(cio, l_data_header, 8, p_manager) != 8) {
1864 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
1865 return OPJ_FALSE;
1866 }
1867
1868 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
1869 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
1870 return OPJ_FALSE;
1871 }
1872
1873 return OPJ_TRUE;
1874 }
1875
opj_jp2_write_jp(opj_jp2_t * jp2,opj_stream_private_t * cio,opj_event_mgr_t * p_manager)1876 static OPJ_BOOL opj_jp2_write_jp(opj_jp2_t *jp2,
1877 opj_stream_private_t *cio,
1878 opj_event_mgr_t * p_manager)
1879 {
1880 /* 12 bytes will be read */
1881 OPJ_BYTE l_signature_data [12];
1882
1883 /* preconditions */
1884 assert(cio != 00);
1885 assert(jp2 != 00);
1886 assert(p_manager != 00);
1887
1888 OPJ_UNUSED(jp2);
1889
1890 /* write box length */
1891 opj_write_bytes(l_signature_data, 12, 4);
1892 /* writes box type */
1893 opj_write_bytes(l_signature_data + 4, JP2_JP, 4);
1894 /* writes magic number*/
1895 opj_write_bytes(l_signature_data + 8, 0x0d0a870a, 4);
1896
1897 if (opj_stream_write_data(cio, l_signature_data, 12, p_manager) != 12) {
1898 return OPJ_FALSE;
1899 }
1900
1901 return OPJ_TRUE;
1902 }
1903
1904 /* ----------------------------------------------------------------------- */
1905 /* JP2 decoder interface */
1906 /* ----------------------------------------------------------------------- */
1907
opj_jp2_setup_decoder(opj_jp2_t * jp2,opj_dparameters_t * parameters)1908 void opj_jp2_setup_decoder(opj_jp2_t *jp2, opj_dparameters_t *parameters)
1909 {
1910 /* setup the J2K codec */
1911 opj_j2k_setup_decoder(jp2->j2k, parameters);
1912
1913 /* further JP2 initializations go here */
1914 jp2->color.jp2_has_colr = 0;
1915 jp2->comps = NULL;
1916 jp2->ignore_pclr_cmap_cdef = parameters->flags &
1917 OPJ_DPARAMETERS_IGNORE_PCLR_CMAP_CDEF_FLAG;
1918 }
1919
opj_jp2_decoder_set_strict_mode(opj_jp2_t * jp2,OPJ_BOOL strict)1920 void opj_jp2_decoder_set_strict_mode(opj_jp2_t *jp2, OPJ_BOOL strict)
1921 {
1922 opj_j2k_decoder_set_strict_mode(jp2->j2k, strict);
1923 }
1924
opj_jp2_set_threads(opj_jp2_t * jp2,OPJ_UINT32 num_threads)1925 OPJ_BOOL opj_jp2_set_threads(opj_jp2_t *jp2, OPJ_UINT32 num_threads)
1926 {
1927 return opj_j2k_set_threads(jp2->j2k, num_threads);
1928 }
1929
1930 /* ----------------------------------------------------------------------- */
1931 /* JP2 encoder interface */
1932 /* ----------------------------------------------------------------------- */
1933
opj_jp2_setup_encoder(opj_jp2_t * jp2,opj_cparameters_t * parameters,opj_image_t * image,opj_event_mgr_t * p_manager)1934 OPJ_BOOL opj_jp2_setup_encoder(opj_jp2_t *jp2,
1935 opj_cparameters_t *parameters,
1936 opj_image_t *image,
1937 opj_event_mgr_t * p_manager)
1938 {
1939 OPJ_UINT32 i;
1940 OPJ_UINT32 depth_0;
1941 OPJ_UINT32 sign;
1942 OPJ_UINT32 alpha_count;
1943 OPJ_UINT32 color_channels = 0U;
1944 OPJ_UINT32 alpha_channel = 0U;
1945
1946
1947 if (!jp2 || !parameters || !image) {
1948 return OPJ_FALSE;
1949 }
1950
1951 /* setup the J2K codec */
1952 /* ------------------- */
1953
1954 /* Check if number of components respects standard */
1955 if (image->numcomps < 1 || image->numcomps > 16384) {
1956 opj_event_msg(p_manager, EVT_ERROR,
1957 "Invalid number of components specified while setting up JP2 encoder\n");
1958 return OPJ_FALSE;
1959 }
1960
1961 if (opj_j2k_setup_encoder(jp2->j2k, parameters, image,
1962 p_manager) == OPJ_FALSE) {
1963 return OPJ_FALSE;
1964 }
1965
1966 /* setup the JP2 codec */
1967 /* ------------------- */
1968
1969 /* Profile box */
1970
1971 jp2->brand = JP2_JP2; /* BR */
1972 jp2->minversion = 0; /* MinV */
1973 jp2->numcl = 1;
1974 jp2->cl = (OPJ_UINT32*) opj_malloc(jp2->numcl * sizeof(OPJ_UINT32));
1975 if (!jp2->cl) {
1976 opj_event_msg(p_manager, EVT_ERROR,
1977 "Not enough memory when setup the JP2 encoder\n");
1978 return OPJ_FALSE;
1979 }
1980 jp2->cl[0] = JP2_JP2; /* CL0 : JP2 */
1981
1982 /* Image Header box */
1983
1984 jp2->numcomps = image->numcomps; /* NC */
1985 jp2->comps = (opj_jp2_comps_t*) opj_malloc(jp2->numcomps * sizeof(
1986 opj_jp2_comps_t));
1987 if (!jp2->comps) {
1988 opj_event_msg(p_manager, EVT_ERROR,
1989 "Not enough memory when setup the JP2 encoder\n");
1990 /* Memory of jp2->cl will be freed by opj_jp2_destroy */
1991 return OPJ_FALSE;
1992 }
1993
1994 jp2->h = image->y1 - image->y0; /* HEIGHT */
1995 jp2->w = image->x1 - image->x0; /* WIDTH */
1996 /* BPC */
1997 depth_0 = image->comps[0].prec - 1;
1998 sign = image->comps[0].sgnd;
1999 jp2->bpc = depth_0 + (sign << 7);
2000 for (i = 1; i < image->numcomps; i++) {
2001 OPJ_UINT32 depth = image->comps[i].prec - 1;
2002 sign = image->comps[i].sgnd;
2003 if (depth_0 != depth) {
2004 jp2->bpc = 255;
2005 }
2006 }
2007 jp2->C = 7; /* C : Always 7 */
2008 jp2->UnkC = 0; /* UnkC, colorspace specified in colr box */
2009 jp2->IPR = 0; /* IPR, no intellectual property */
2010
2011 /* BitsPerComponent box */
2012 for (i = 0; i < image->numcomps; i++) {
2013 jp2->comps[i].bpcc = image->comps[i].prec - 1 + (image->comps[i].sgnd << 7);
2014 }
2015
2016 /* Colour Specification box */
2017 if (image->icc_profile_len) {
2018 jp2->meth = 2;
2019 jp2->enumcs = 0;
2020 } else {
2021 jp2->meth = 1;
2022 if (image->color_space == 1) {
2023 jp2->enumcs = 16; /* sRGB as defined by IEC 61966-2-1 */
2024 } else if (image->color_space == 2) {
2025 jp2->enumcs = 17; /* greyscale */
2026 } else if (image->color_space == 3) {
2027 jp2->enumcs = 18; /* YUV */
2028 }
2029 }
2030
2031 /* Channel Definition box */
2032 /* FIXME not provided by parameters */
2033 /* We try to do what we can... */
2034 alpha_count = 0U;
2035 for (i = 0; i < image->numcomps; i++) {
2036 if (image->comps[i].alpha != 0) {
2037 alpha_count++;
2038 alpha_channel = i;
2039 }
2040 }
2041 if (alpha_count == 1U) { /* no way to deal with more than 1 alpha channel */
2042 switch (jp2->enumcs) {
2043 case 16:
2044 case 18:
2045 color_channels = 3;
2046 break;
2047 case 17:
2048 color_channels = 1;
2049 break;
2050 default:
2051 alpha_count = 0U;
2052 break;
2053 }
2054 if (alpha_count == 0U) {
2055 opj_event_msg(p_manager, EVT_WARNING,
2056 "Alpha channel specified but unknown enumcs. No cdef box will be created.\n");
2057 } else if (image->numcomps < (color_channels + 1)) {
2058 opj_event_msg(p_manager, EVT_WARNING,
2059 "Alpha channel specified but not enough image components for an automatic cdef box creation.\n");
2060 alpha_count = 0U;
2061 } else if ((OPJ_UINT32)alpha_channel < color_channels) {
2062 opj_event_msg(p_manager, EVT_WARNING,
2063 "Alpha channel position conflicts with color channel. No cdef box will be created.\n");
2064 alpha_count = 0U;
2065 }
2066 } else if (alpha_count > 1) {
2067 opj_event_msg(p_manager, EVT_WARNING,
2068 "Multiple alpha channels specified. No cdef box will be created.\n");
2069 }
2070 if (alpha_count == 1U) { /* if here, we know what we can do */
2071 jp2->color.jp2_cdef = (opj_jp2_cdef_t*)opj_malloc(sizeof(opj_jp2_cdef_t));
2072 if (!jp2->color.jp2_cdef) {
2073 opj_event_msg(p_manager, EVT_ERROR,
2074 "Not enough memory to setup the JP2 encoder\n");
2075 return OPJ_FALSE;
2076 }
2077 /* no memset needed, all values will be overwritten except if jp2->color.jp2_cdef->info allocation fails, */
2078 /* in which case jp2->color.jp2_cdef->info will be NULL => valid for destruction */
2079 jp2->color.jp2_cdef->info = (opj_jp2_cdef_info_t*) opj_malloc(
2080 image->numcomps * sizeof(opj_jp2_cdef_info_t));
2081 if (!jp2->color.jp2_cdef->info) {
2082 /* memory will be freed by opj_jp2_destroy */
2083 opj_event_msg(p_manager, EVT_ERROR,
2084 "Not enough memory to setup the JP2 encoder\n");
2085 return OPJ_FALSE;
2086 }
2087 jp2->color.jp2_cdef->n = (OPJ_UINT16)
2088 image->numcomps; /* cast is valid : image->numcomps [1,16384] */
2089 for (i = 0U; i < color_channels; i++) {
2090 jp2->color.jp2_cdef->info[i].cn = (OPJ_UINT16)
2091 i; /* cast is valid : image->numcomps [1,16384] */
2092 jp2->color.jp2_cdef->info[i].typ = 0U;
2093 jp2->color.jp2_cdef->info[i].asoc = (OPJ_UINT16)(i +
2094 1U); /* No overflow + cast is valid : image->numcomps [1,16384] */
2095 }
2096 for (; i < image->numcomps; i++) {
2097 if (image->comps[i].alpha != 0) { /* we'll be here exactly once */
2098 jp2->color.jp2_cdef->info[i].cn = (OPJ_UINT16)
2099 i; /* cast is valid : image->numcomps [1,16384] */
2100 jp2->color.jp2_cdef->info[i].typ = 1U; /* Opacity channel */
2101 jp2->color.jp2_cdef->info[i].asoc =
2102 0U; /* Apply alpha channel to the whole image */
2103 } else {
2104 /* Unknown channel */
2105 jp2->color.jp2_cdef->info[i].cn = (OPJ_UINT16)
2106 i; /* cast is valid : image->numcomps [1,16384] */
2107 jp2->color.jp2_cdef->info[i].typ = 65535U;
2108 jp2->color.jp2_cdef->info[i].asoc = 65535U;
2109 }
2110 }
2111 }
2112
2113 jp2->precedence = 0; /* PRECEDENCE */
2114 jp2->approx = 0; /* APPROX */
2115
2116 jp2->jpip_on = parameters->jpip_on;
2117
2118 return OPJ_TRUE;
2119 }
2120
opj_jp2_encode(opj_jp2_t * jp2,opj_stream_private_t * stream,opj_event_mgr_t * p_manager)2121 OPJ_BOOL opj_jp2_encode(opj_jp2_t *jp2,
2122 opj_stream_private_t *stream,
2123 opj_event_mgr_t * p_manager)
2124 {
2125 return opj_j2k_encode(jp2->j2k, stream, p_manager);
2126 }
2127
opj_jp2_end_decompress(opj_jp2_t * jp2,opj_stream_private_t * cio,opj_event_mgr_t * p_manager)2128 OPJ_BOOL opj_jp2_end_decompress(opj_jp2_t *jp2,
2129 opj_stream_private_t *cio,
2130 opj_event_mgr_t * p_manager
2131 )
2132 {
2133 /* preconditions */
2134 assert(jp2 != 00);
2135 assert(cio != 00);
2136 assert(p_manager != 00);
2137
2138 /* customization of the end encoding */
2139 if (! opj_jp2_setup_end_header_reading(jp2, p_manager)) {
2140 return OPJ_FALSE;
2141 }
2142
2143 /* write header */
2144 if (! opj_jp2_exec(jp2, jp2->m_procedure_list, cio, p_manager)) {
2145 return OPJ_FALSE;
2146 }
2147
2148 return opj_j2k_end_decompress(jp2->j2k, cio, p_manager);
2149 }
2150
opj_jp2_end_compress(opj_jp2_t * jp2,opj_stream_private_t * cio,opj_event_mgr_t * p_manager)2151 OPJ_BOOL opj_jp2_end_compress(opj_jp2_t *jp2,
2152 opj_stream_private_t *cio,
2153 opj_event_mgr_t * p_manager
2154 )
2155 {
2156 /* preconditions */
2157 assert(jp2 != 00);
2158 assert(cio != 00);
2159 assert(p_manager != 00);
2160
2161 /* customization of the end encoding */
2162 if (! opj_jp2_setup_end_header_writing(jp2, p_manager)) {
2163 return OPJ_FALSE;
2164 }
2165
2166 if (! opj_j2k_end_compress(jp2->j2k, cio, p_manager)) {
2167 return OPJ_FALSE;
2168 }
2169
2170 /* write header */
2171 return opj_jp2_exec(jp2, jp2->m_procedure_list, cio, p_manager);
2172 }
2173
opj_jp2_setup_end_header_writing(opj_jp2_t * jp2,opj_event_mgr_t * p_manager)2174 static OPJ_BOOL opj_jp2_setup_end_header_writing(opj_jp2_t *jp2,
2175 opj_event_mgr_t * p_manager)
2176 {
2177 /* preconditions */
2178 assert(jp2 != 00);
2179 assert(p_manager != 00);
2180
2181 #ifdef USE_JPIP
2182 if (jp2->jpip_on) {
2183 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2184 (opj_procedure)opj_jpip_write_iptr, p_manager)) {
2185 return OPJ_FALSE;
2186 }
2187 }
2188 #endif
2189 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2190 (opj_procedure)opj_jp2_write_jp2c, p_manager)) {
2191 return OPJ_FALSE;
2192 }
2193 /* DEVELOPER CORNER, add your custom procedures */
2194 #ifdef USE_JPIP
2195 if (jp2->jpip_on) {
2196 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2197 (opj_procedure)opj_jpip_write_cidx, p_manager)) {
2198 return OPJ_FALSE;
2199 }
2200 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2201 (opj_procedure)opj_jpip_write_fidx, p_manager)) {
2202 return OPJ_FALSE;
2203 }
2204 }
2205 #endif
2206 return OPJ_TRUE;
2207 }
2208
opj_jp2_setup_end_header_reading(opj_jp2_t * jp2,opj_event_mgr_t * p_manager)2209 static OPJ_BOOL opj_jp2_setup_end_header_reading(opj_jp2_t *jp2,
2210 opj_event_mgr_t * p_manager)
2211 {
2212 /* preconditions */
2213 assert(jp2 != 00);
2214 assert(p_manager != 00);
2215
2216 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2217 (opj_procedure)opj_jp2_read_header_procedure, p_manager)) {
2218 return OPJ_FALSE;
2219 }
2220 /* DEVELOPER CORNER, add your custom procedures */
2221
2222 return OPJ_TRUE;
2223 }
2224
opj_jp2_default_validation(opj_jp2_t * jp2,opj_stream_private_t * cio,opj_event_mgr_t * p_manager)2225 static OPJ_BOOL opj_jp2_default_validation(opj_jp2_t * jp2,
2226 opj_stream_private_t *cio,
2227 opj_event_mgr_t * p_manager
2228 )
2229 {
2230 OPJ_BOOL l_is_valid = OPJ_TRUE;
2231 OPJ_UINT32 i;
2232
2233 /* preconditions */
2234 assert(jp2 != 00);
2235 assert(cio != 00);
2236 assert(p_manager != 00);
2237
2238 OPJ_UNUSED(p_manager);
2239
2240 /* JPEG2000 codec validation */
2241
2242 /* STATE checking */
2243 /* make sure the state is at 0 */
2244 l_is_valid &= (jp2->jp2_state == JP2_STATE_NONE);
2245
2246 /* make sure not reading a jp2h ???? WEIRD */
2247 l_is_valid &= (jp2->jp2_img_state == JP2_IMG_STATE_NONE);
2248
2249 /* POINTER validation */
2250 /* make sure a j2k codec is present */
2251 l_is_valid &= (jp2->j2k != 00);
2252
2253 /* make sure a procedure list is present */
2254 l_is_valid &= (jp2->m_procedure_list != 00);
2255
2256 /* make sure a validation list is present */
2257 l_is_valid &= (jp2->m_validation_list != 00);
2258
2259 /* PARAMETER VALIDATION */
2260 /* number of components */
2261 l_is_valid &= (jp2->numcl > 0);
2262 /* width */
2263 l_is_valid &= (jp2->h > 0);
2264 /* height */
2265 l_is_valid &= (jp2->w > 0);
2266 /* precision */
2267 for (i = 0; i < jp2->numcomps; ++i) {
2268 l_is_valid &= ((jp2->comps[i].bpcc & 0x7FU) <
2269 38U); /* 0 is valid, ignore sign for check */
2270 }
2271
2272 /* METH */
2273 l_is_valid &= ((jp2->meth > 0) && (jp2->meth < 3));
2274
2275 /* stream validation */
2276 /* back and forth is needed */
2277 l_is_valid &= opj_stream_has_seek(cio);
2278
2279 return l_is_valid;
2280 }
2281
opj_jp2_read_header_procedure(opj_jp2_t * jp2,opj_stream_private_t * stream,opj_event_mgr_t * p_manager)2282 static OPJ_BOOL opj_jp2_read_header_procedure(opj_jp2_t *jp2,
2283 opj_stream_private_t *stream,
2284 opj_event_mgr_t * p_manager
2285 )
2286 {
2287 opj_jp2_box_t box;
2288 OPJ_UINT32 l_nb_bytes_read;
2289 const opj_jp2_header_handler_t * l_current_handler;
2290 const opj_jp2_header_handler_t * l_current_handler_misplaced;
2291 OPJ_UINT32 l_last_data_size = OPJ_BOX_SIZE;
2292 OPJ_UINT32 l_current_data_size;
2293 OPJ_BYTE * l_current_data = 00;
2294
2295 /* preconditions */
2296 assert(stream != 00);
2297 assert(jp2 != 00);
2298 assert(p_manager != 00);
2299
2300 l_current_data = (OPJ_BYTE*)opj_calloc(1, l_last_data_size);
2301
2302 if (l_current_data == 00) {
2303 opj_event_msg(p_manager, EVT_ERROR,
2304 "Not enough memory to handle jpeg2000 file header\n");
2305 return OPJ_FALSE;
2306 }
2307
2308 while (opj_jp2_read_boxhdr(&box, &l_nb_bytes_read, stream, p_manager)) {
2309 /* is it the codestream box ? */
2310 if (box.type == JP2_JP2C) {
2311 if (jp2->jp2_state & JP2_STATE_HEADER) {
2312 jp2->jp2_state |= JP2_STATE_CODESTREAM;
2313 opj_free(l_current_data);
2314 return OPJ_TRUE;
2315 } else {
2316 opj_event_msg(p_manager, EVT_ERROR, "bad placed jpeg codestream\n");
2317 opj_free(l_current_data);
2318 return OPJ_FALSE;
2319 }
2320 } else if (box.length == 0) {
2321 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
2322 opj_free(l_current_data);
2323 return OPJ_FALSE;
2324 }
2325 /* testcase 1851.pdf.SIGSEGV.ce9.948 */
2326 else if (box.length < l_nb_bytes_read) {
2327 opj_event_msg(p_manager, EVT_ERROR, "invalid box size %d (%x)\n", box.length,
2328 box.type);
2329 opj_free(l_current_data);
2330 return OPJ_FALSE;
2331 }
2332
2333 l_current_handler = opj_jp2_find_handler(box.type);
2334 l_current_handler_misplaced = opj_jp2_img_find_handler(box.type);
2335 l_current_data_size = box.length - l_nb_bytes_read;
2336
2337 if ((l_current_handler != 00) || (l_current_handler_misplaced != 00)) {
2338 if (l_current_handler == 00) {
2339 opj_event_msg(p_manager, EVT_WARNING,
2340 "Found a misplaced '%c%c%c%c' box outside jp2h box\n",
2341 (OPJ_BYTE)(box.type >> 24), (OPJ_BYTE)(box.type >> 16),
2342 (OPJ_BYTE)(box.type >> 8), (OPJ_BYTE)(box.type >> 0));
2343 if (jp2->jp2_state & JP2_STATE_HEADER) {
2344 /* read anyway, we already have jp2h */
2345 l_current_handler = l_current_handler_misplaced;
2346 } else {
2347 opj_event_msg(p_manager, EVT_WARNING,
2348 "JPEG2000 Header box not read yet, '%c%c%c%c' box will be ignored\n",
2349 (OPJ_BYTE)(box.type >> 24), (OPJ_BYTE)(box.type >> 16),
2350 (OPJ_BYTE)(box.type >> 8), (OPJ_BYTE)(box.type >> 0));
2351 jp2->jp2_state |= JP2_STATE_UNKNOWN;
2352 if (opj_stream_skip(stream, l_current_data_size,
2353 p_manager) != l_current_data_size) {
2354 opj_event_msg(p_manager, EVT_ERROR,
2355 "Problem with skipping JPEG2000 box, stream error\n");
2356 opj_free(l_current_data);
2357 return OPJ_FALSE;
2358 }
2359 continue;
2360 }
2361 }
2362 if ((OPJ_OFF_T)l_current_data_size > opj_stream_get_number_byte_left(stream)) {
2363 /* do not even try to malloc if we can't read */
2364 opj_event_msg(p_manager, EVT_ERROR,
2365 "Invalid box size %d for box '%c%c%c%c'. Need %d bytes, %d bytes remaining \n",
2366 box.length, (OPJ_BYTE)(box.type >> 24), (OPJ_BYTE)(box.type >> 16),
2367 (OPJ_BYTE)(box.type >> 8), (OPJ_BYTE)(box.type >> 0), l_current_data_size,
2368 (OPJ_UINT32)opj_stream_get_number_byte_left(stream));
2369 opj_free(l_current_data);
2370 return OPJ_FALSE;
2371 }
2372 if (l_current_data_size > l_last_data_size) {
2373 OPJ_BYTE* new_current_data = (OPJ_BYTE*)opj_realloc(l_current_data,
2374 l_current_data_size);
2375 if (!new_current_data) {
2376 opj_free(l_current_data);
2377 opj_event_msg(p_manager, EVT_ERROR,
2378 "Not enough memory to handle jpeg2000 box\n");
2379 return OPJ_FALSE;
2380 }
2381 l_current_data = new_current_data;
2382 l_last_data_size = l_current_data_size;
2383 }
2384
2385 l_nb_bytes_read = (OPJ_UINT32)opj_stream_read_data(stream, l_current_data,
2386 l_current_data_size, p_manager);
2387 if (l_nb_bytes_read != l_current_data_size) {
2388 opj_event_msg(p_manager, EVT_ERROR,
2389 "Problem with reading JPEG2000 box, stream error\n");
2390 opj_free(l_current_data);
2391 return OPJ_FALSE;
2392 }
2393
2394 if (! l_current_handler->handler(jp2, l_current_data, l_current_data_size,
2395 p_manager)) {
2396 opj_free(l_current_data);
2397 return OPJ_FALSE;
2398 }
2399 } else {
2400 if (!(jp2->jp2_state & JP2_STATE_SIGNATURE)) {
2401 opj_event_msg(p_manager, EVT_ERROR,
2402 "Malformed JP2 file format: first box must be JPEG 2000 signature box\n");
2403 opj_free(l_current_data);
2404 return OPJ_FALSE;
2405 }
2406 if (!(jp2->jp2_state & JP2_STATE_FILE_TYPE)) {
2407 opj_event_msg(p_manager, EVT_ERROR,
2408 "Malformed JP2 file format: second box must be file type box\n");
2409 opj_free(l_current_data);
2410 return OPJ_FALSE;
2411 }
2412 jp2->jp2_state |= JP2_STATE_UNKNOWN;
2413 if (opj_stream_skip(stream, l_current_data_size,
2414 p_manager) != l_current_data_size) {
2415 if (jp2->jp2_state & JP2_STATE_CODESTREAM) {
2416 /* If we already read the codestream, do not error out */
2417 /* Needed for data/input/nonregression/issue254.jp2 */
2418 opj_event_msg(p_manager, EVT_WARNING,
2419 "Problem with skipping JPEG2000 box, stream error\n");
2420 opj_free(l_current_data);
2421 return OPJ_TRUE;
2422 } else {
2423 opj_event_msg(p_manager, EVT_ERROR,
2424 "Problem with skipping JPEG2000 box, stream error\n");
2425 opj_free(l_current_data);
2426 return OPJ_FALSE;
2427 }
2428 }
2429 }
2430 }
2431
2432 opj_free(l_current_data);
2433
2434 return OPJ_TRUE;
2435 }
2436
2437 /**
2438 * Executes the given procedures on the given codec.
2439 *
2440 * @param p_procedure_list the list of procedures to execute
2441 * @param jp2 the jpeg2000 file codec to execute the procedures on.
2442 * @param stream the stream to execute the procedures on.
2443 * @param p_manager the user manager.
2444 *
2445 * @return true if all the procedures were successfully executed.
2446 */
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)2447 static OPJ_BOOL opj_jp2_exec(opj_jp2_t * jp2,
2448 opj_procedure_list_t * p_procedure_list,
2449 opj_stream_private_t *stream,
2450 opj_event_mgr_t * p_manager
2451 )
2452
2453 {
2454 OPJ_BOOL(** l_procedure)(opj_jp2_t * jp2, opj_stream_private_t *,
2455 opj_event_mgr_t *) = 00;
2456 OPJ_BOOL l_result = OPJ_TRUE;
2457 OPJ_UINT32 l_nb_proc, i;
2458
2459 /* preconditions */
2460 assert(p_procedure_list != 00);
2461 assert(jp2 != 00);
2462 assert(stream != 00);
2463 assert(p_manager != 00);
2464
2465 l_nb_proc = opj_procedure_list_get_nb_procedures(p_procedure_list);
2466 l_procedure = (OPJ_BOOL(**)(opj_jp2_t * jp2, opj_stream_private_t *,
2467 opj_event_mgr_t *)) opj_procedure_list_get_first_procedure(p_procedure_list);
2468
2469 for (i = 0; i < l_nb_proc; ++i) {
2470 l_result = l_result && (*l_procedure)(jp2, stream, p_manager);
2471 ++l_procedure;
2472 }
2473
2474 /* and clear the procedure list at the end. */
2475 opj_procedure_list_clear(p_procedure_list);
2476 return l_result;
2477 }
2478
opj_jp2_start_compress(opj_jp2_t * jp2,opj_stream_private_t * stream,opj_image_t * p_image,opj_event_mgr_t * p_manager)2479 OPJ_BOOL opj_jp2_start_compress(opj_jp2_t *jp2,
2480 opj_stream_private_t *stream,
2481 opj_image_t * p_image,
2482 opj_event_mgr_t * p_manager
2483 )
2484 {
2485 /* preconditions */
2486 assert(jp2 != 00);
2487 assert(stream != 00);
2488 assert(p_manager != 00);
2489
2490 /* customization of the validation */
2491 if (! opj_jp2_setup_encoding_validation(jp2, p_manager)) {
2492 return OPJ_FALSE;
2493 }
2494
2495 /* validation of the parameters codec */
2496 if (! opj_jp2_exec(jp2, jp2->m_validation_list, stream, p_manager)) {
2497 return OPJ_FALSE;
2498 }
2499
2500 /* customization of the encoding */
2501 if (! opj_jp2_setup_header_writing(jp2, p_manager)) {
2502 return OPJ_FALSE;
2503 }
2504
2505 /* write header */
2506 if (! opj_jp2_exec(jp2, jp2->m_procedure_list, stream, p_manager)) {
2507 return OPJ_FALSE;
2508 }
2509
2510 return opj_j2k_start_compress(jp2->j2k, stream, p_image, p_manager);
2511 }
2512
opj_jp2_find_handler(OPJ_UINT32 p_id)2513 static const opj_jp2_header_handler_t * opj_jp2_find_handler(OPJ_UINT32 p_id)
2514 {
2515 OPJ_UINT32 i, l_handler_size = sizeof(jp2_header) / sizeof(
2516 opj_jp2_header_handler_t);
2517
2518 for (i = 0; i < l_handler_size; ++i) {
2519 if (jp2_header[i].id == p_id) {
2520 return &jp2_header[i];
2521 }
2522 }
2523 return NULL;
2524 }
2525
2526 /**
2527 * Finds the image execution function related to the given box id.
2528 *
2529 * @param p_id the id of the handler to fetch.
2530 *
2531 * @return the given handler or 00 if it could not be found.
2532 */
opj_jp2_img_find_handler(OPJ_UINT32 p_id)2533 static const opj_jp2_header_handler_t * opj_jp2_img_find_handler(
2534 OPJ_UINT32 p_id)
2535 {
2536 OPJ_UINT32 i, l_handler_size = sizeof(jp2_img_header) / sizeof(
2537 opj_jp2_header_handler_t);
2538 for (i = 0; i < l_handler_size; ++i) {
2539 if (jp2_img_header[i].id == p_id) {
2540 return &jp2_img_header[i];
2541 }
2542 }
2543
2544 return NULL;
2545 }
2546
2547 /**
2548 * Reads a jpeg2000 file signature box.
2549 *
2550 * @param p_header_data the data contained in the signature box.
2551 * @param jp2 the jpeg2000 file codec.
2552 * @param p_header_size the size of the data contained in the signature box.
2553 * @param p_manager the user event manager.
2554 *
2555 * @return true if the file signature box is valid.
2556 */
opj_jp2_read_jp(opj_jp2_t * jp2,OPJ_BYTE * p_header_data,OPJ_UINT32 p_header_size,opj_event_mgr_t * p_manager)2557 static OPJ_BOOL opj_jp2_read_jp(opj_jp2_t *jp2,
2558 OPJ_BYTE * p_header_data,
2559 OPJ_UINT32 p_header_size,
2560 opj_event_mgr_t * p_manager
2561 )
2562
2563 {
2564 OPJ_UINT32 l_magic_number;
2565
2566 /* preconditions */
2567 assert(p_header_data != 00);
2568 assert(jp2 != 00);
2569 assert(p_manager != 00);
2570
2571 if (jp2->jp2_state != JP2_STATE_NONE) {
2572 opj_event_msg(p_manager, EVT_ERROR,
2573 "The signature box must be the first box in the file.\n");
2574 return OPJ_FALSE;
2575 }
2576
2577 /* assure length of data is correct (4 -> magic number) */
2578 if (p_header_size != 4) {
2579 opj_event_msg(p_manager, EVT_ERROR, "Error with JP signature Box size\n");
2580 return OPJ_FALSE;
2581 }
2582
2583 /* rearrange data */
2584 opj_read_bytes(p_header_data, &l_magic_number, 4);
2585 if (l_magic_number != 0x0d0a870a) {
2586 opj_event_msg(p_manager, EVT_ERROR,
2587 "Error with JP Signature : bad magic number\n");
2588 return OPJ_FALSE;
2589 }
2590
2591 jp2->jp2_state |= JP2_STATE_SIGNATURE;
2592
2593 return OPJ_TRUE;
2594 }
2595
2596 /**
2597 * Reads a a FTYP box - File type box
2598 *
2599 * @param p_header_data the data contained in the FTYP box.
2600 * @param jp2 the jpeg2000 file codec.
2601 * @param p_header_size the size of the data contained in the FTYP box.
2602 * @param p_manager the user event manager.
2603 *
2604 * @return true if the FTYP box is valid.
2605 */
opj_jp2_read_ftyp(opj_jp2_t * jp2,OPJ_BYTE * p_header_data,OPJ_UINT32 p_header_size,opj_event_mgr_t * p_manager)2606 static OPJ_BOOL opj_jp2_read_ftyp(opj_jp2_t *jp2,
2607 OPJ_BYTE * p_header_data,
2608 OPJ_UINT32 p_header_size,
2609 opj_event_mgr_t * p_manager
2610 )
2611 {
2612 OPJ_UINT32 i, l_remaining_bytes;
2613
2614 /* preconditions */
2615 assert(p_header_data != 00);
2616 assert(jp2 != 00);
2617 assert(p_manager != 00);
2618
2619 if (jp2->jp2_state != JP2_STATE_SIGNATURE) {
2620 opj_event_msg(p_manager, EVT_ERROR,
2621 "The ftyp box must be the second box in the file.\n");
2622 return OPJ_FALSE;
2623 }
2624
2625 /* assure length of data is correct */
2626 if (p_header_size < 8) {
2627 opj_event_msg(p_manager, EVT_ERROR, "Error with FTYP signature Box size\n");
2628 return OPJ_FALSE;
2629 }
2630
2631 opj_read_bytes(p_header_data, &jp2->brand, 4); /* BR */
2632 p_header_data += 4;
2633
2634 opj_read_bytes(p_header_data, &jp2->minversion, 4); /* MinV */
2635 p_header_data += 4;
2636
2637 l_remaining_bytes = p_header_size - 8;
2638
2639 /* the number of remaining bytes should be a multiple of 4 */
2640 if ((l_remaining_bytes & 0x3) != 0) {
2641 opj_event_msg(p_manager, EVT_ERROR, "Error with FTYP signature Box size\n");
2642 return OPJ_FALSE;
2643 }
2644
2645 /* div by 4 */
2646 jp2->numcl = l_remaining_bytes >> 2;
2647 if (jp2->numcl) {
2648 jp2->cl = (OPJ_UINT32 *) opj_calloc(jp2->numcl, sizeof(OPJ_UINT32));
2649 if (jp2->cl == 00) {
2650 opj_event_msg(p_manager, EVT_ERROR, "Not enough memory with FTYP Box\n");
2651 return OPJ_FALSE;
2652 }
2653 }
2654
2655 for (i = 0; i < jp2->numcl; ++i) {
2656 opj_read_bytes(p_header_data, &jp2->cl[i], 4); /* CLi */
2657 p_header_data += 4;
2658 }
2659
2660 jp2->jp2_state |= JP2_STATE_FILE_TYPE;
2661
2662 return OPJ_TRUE;
2663 }
2664
opj_jp2_skip_jp2c(opj_jp2_t * jp2,opj_stream_private_t * stream,opj_event_mgr_t * p_manager)2665 static OPJ_BOOL opj_jp2_skip_jp2c(opj_jp2_t *jp2,
2666 opj_stream_private_t *stream,
2667 opj_event_mgr_t * p_manager)
2668 {
2669 /* preconditions */
2670 assert(jp2 != 00);
2671 assert(stream != 00);
2672 assert(p_manager != 00);
2673
2674 jp2->j2k_codestream_offset = opj_stream_tell(stream);
2675
2676 if (opj_stream_skip(stream, 8, p_manager) != 8) {
2677 return OPJ_FALSE;
2678 }
2679
2680 return OPJ_TRUE;
2681 }
2682
opj_jpip_skip_iptr(opj_jp2_t * jp2,opj_stream_private_t * stream,opj_event_mgr_t * p_manager)2683 static OPJ_BOOL opj_jpip_skip_iptr(opj_jp2_t *jp2,
2684 opj_stream_private_t *stream,
2685 opj_event_mgr_t * p_manager)
2686 {
2687 /* preconditions */
2688 assert(jp2 != 00);
2689 assert(stream != 00);
2690 assert(p_manager != 00);
2691
2692 jp2->jpip_iptr_offset = opj_stream_tell(stream);
2693
2694 if (opj_stream_skip(stream, 24, p_manager) != 24) {
2695 return OPJ_FALSE;
2696 }
2697
2698 return OPJ_TRUE;
2699 }
2700
2701 /**
2702 * Reads the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box).
2703 *
2704 * @param p_header_data the data contained in the file header box.
2705 * @param jp2 the jpeg2000 file codec.
2706 * @param p_header_size the size of the data contained in the file header box.
2707 * @param p_manager the user event manager.
2708 *
2709 * @return true if the JP2 Header box was successfully recognized.
2710 */
opj_jp2_read_jp2h(opj_jp2_t * jp2,OPJ_BYTE * p_header_data,OPJ_UINT32 p_header_size,opj_event_mgr_t * p_manager)2711 static OPJ_BOOL opj_jp2_read_jp2h(opj_jp2_t *jp2,
2712 OPJ_BYTE *p_header_data,
2713 OPJ_UINT32 p_header_size,
2714 opj_event_mgr_t * p_manager
2715 )
2716 {
2717 OPJ_UINT32 l_box_size = 0, l_current_data_size = 0;
2718 opj_jp2_box_t box;
2719 const opj_jp2_header_handler_t * l_current_handler;
2720 OPJ_BOOL l_has_ihdr = 0;
2721
2722 /* preconditions */
2723 assert(p_header_data != 00);
2724 assert(jp2 != 00);
2725 assert(p_manager != 00);
2726
2727 /* make sure the box is well placed */
2728 if ((jp2->jp2_state & JP2_STATE_FILE_TYPE) != JP2_STATE_FILE_TYPE) {
2729 opj_event_msg(p_manager, EVT_ERROR,
2730 "The box must be the first box in the file.\n");
2731 return OPJ_FALSE;
2732 }
2733
2734 jp2->jp2_img_state = JP2_IMG_STATE_NONE;
2735
2736 /* iterate while remaining data */
2737 while (p_header_size > 0) {
2738
2739 if (! opj_jp2_read_boxhdr_char(&box, p_header_data, &l_box_size, p_header_size,
2740 p_manager)) {
2741 opj_event_msg(p_manager, EVT_ERROR,
2742 "Stream error while reading JP2 Header box\n");
2743 return OPJ_FALSE;
2744 }
2745
2746 if (box.length > p_header_size) {
2747 opj_event_msg(p_manager, EVT_ERROR,
2748 "Stream error while reading JP2 Header box: box length is inconsistent.\n");
2749 return OPJ_FALSE;
2750 }
2751
2752 l_current_handler = opj_jp2_img_find_handler(box.type);
2753 l_current_data_size = box.length - l_box_size;
2754 p_header_data += l_box_size;
2755
2756 if (l_current_handler != 00) {
2757 if (! l_current_handler->handler(jp2, p_header_data, l_current_data_size,
2758 p_manager)) {
2759 return OPJ_FALSE;
2760 }
2761 } else {
2762 jp2->jp2_img_state |= JP2_IMG_STATE_UNKNOWN;
2763 }
2764
2765 if (box.type == JP2_IHDR) {
2766 l_has_ihdr = 1;
2767 }
2768
2769 p_header_data += l_current_data_size;
2770 p_header_size -= box.length;
2771 }
2772
2773 if (l_has_ihdr == 0) {
2774 opj_event_msg(p_manager, EVT_ERROR,
2775 "Stream error while reading JP2 Header box: no 'ihdr' box.\n");
2776 return OPJ_FALSE;
2777 }
2778
2779 jp2->jp2_state |= JP2_STATE_HEADER;
2780 jp2->has_jp2h = 1;
2781
2782 return OPJ_TRUE;
2783 }
2784
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)2785 static OPJ_BOOL opj_jp2_read_boxhdr_char(opj_jp2_box_t *box,
2786 OPJ_BYTE * p_data,
2787 OPJ_UINT32 * p_number_bytes_read,
2788 OPJ_UINT32 p_box_max_size,
2789 opj_event_mgr_t * p_manager
2790 )
2791 {
2792 OPJ_UINT32 l_value;
2793
2794 /* preconditions */
2795 assert(p_data != 00);
2796 assert(box != 00);
2797 assert(p_number_bytes_read != 00);
2798 assert(p_manager != 00);
2799
2800 if (p_box_max_size < 8) {
2801 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of less than 8 bytes\n");
2802 return OPJ_FALSE;
2803 }
2804
2805 /* process read data */
2806 opj_read_bytes(p_data, &l_value, 4);
2807 p_data += 4;
2808 box->length = (OPJ_UINT32)(l_value);
2809
2810 opj_read_bytes(p_data, &l_value, 4);
2811 p_data += 4;
2812 box->type = (OPJ_UINT32)(l_value);
2813
2814 *p_number_bytes_read = 8;
2815
2816 /* do we have a "special very large box ?" */
2817 /* read then the XLBox */
2818 if (box->length == 1) {
2819 OPJ_UINT32 l_xl_part_size;
2820
2821 if (p_box_max_size < 16) {
2822 opj_event_msg(p_manager, EVT_ERROR,
2823 "Cannot handle XL box of less than 16 bytes\n");
2824 return OPJ_FALSE;
2825 }
2826
2827 opj_read_bytes(p_data, &l_xl_part_size, 4);
2828 p_data += 4;
2829 *p_number_bytes_read += 4;
2830
2831 if (l_xl_part_size != 0) {
2832 opj_event_msg(p_manager, EVT_ERROR,
2833 "Cannot handle box sizes higher than 2^32\n");
2834 return OPJ_FALSE;
2835 }
2836
2837 opj_read_bytes(p_data, &l_value, 4);
2838 *p_number_bytes_read += 4;
2839 box->length = (OPJ_UINT32)(l_value);
2840
2841 if (box->length == 0) {
2842 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
2843 return OPJ_FALSE;
2844 }
2845 } else if (box->length == 0) {
2846 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
2847 return OPJ_FALSE;
2848 }
2849 if (box->length < *p_number_bytes_read) {
2850 opj_event_msg(p_manager, EVT_ERROR, "Box length is inconsistent.\n");
2851 return OPJ_FALSE;
2852 }
2853 return OPJ_TRUE;
2854 }
2855
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)2856 OPJ_BOOL opj_jp2_read_header(opj_stream_private_t *p_stream,
2857 opj_jp2_t *jp2,
2858 opj_image_t ** p_image,
2859 opj_event_mgr_t * p_manager
2860 )
2861 {
2862 /* preconditions */
2863 assert(jp2 != 00);
2864 assert(p_stream != 00);
2865 assert(p_manager != 00);
2866
2867 /* customization of the validation */
2868 if (! opj_jp2_setup_decoding_validation(jp2, p_manager)) {
2869 return OPJ_FALSE;
2870 }
2871
2872 /* customization of the encoding */
2873 if (! opj_jp2_setup_header_reading(jp2, p_manager)) {
2874 return OPJ_FALSE;
2875 }
2876
2877 /* validation of the parameters codec */
2878 if (! opj_jp2_exec(jp2, jp2->m_validation_list, p_stream, p_manager)) {
2879 return OPJ_FALSE;
2880 }
2881
2882 /* read header */
2883 if (! opj_jp2_exec(jp2, jp2->m_procedure_list, p_stream, p_manager)) {
2884 return OPJ_FALSE;
2885 }
2886 if (jp2->has_jp2h == 0) {
2887 opj_event_msg(p_manager, EVT_ERROR, "JP2H box missing. Required.\n");
2888 return OPJ_FALSE;
2889 }
2890 if (jp2->has_ihdr == 0) {
2891 opj_event_msg(p_manager, EVT_ERROR, "IHDR box_missing. Required.\n");
2892 return OPJ_FALSE;
2893 }
2894
2895 return opj_j2k_read_header(p_stream,
2896 jp2->j2k,
2897 p_image,
2898 p_manager);
2899 }
2900
opj_jp2_setup_encoding_validation(opj_jp2_t * jp2,opj_event_mgr_t * p_manager)2901 static OPJ_BOOL opj_jp2_setup_encoding_validation(opj_jp2_t *jp2,
2902 opj_event_mgr_t * p_manager)
2903 {
2904 /* preconditions */
2905 assert(jp2 != 00);
2906 assert(p_manager != 00);
2907
2908 if (! opj_procedure_list_add_procedure(jp2->m_validation_list,
2909 (opj_procedure)opj_jp2_default_validation, p_manager)) {
2910 return OPJ_FALSE;
2911 }
2912 /* DEVELOPER CORNER, add your custom validation procedure */
2913
2914 return OPJ_TRUE;
2915 }
2916
opj_jp2_setup_decoding_validation(opj_jp2_t * jp2,opj_event_mgr_t * p_manager)2917 static OPJ_BOOL opj_jp2_setup_decoding_validation(opj_jp2_t *jp2,
2918 opj_event_mgr_t * p_manager)
2919 {
2920 /* preconditions */
2921 assert(jp2 != 00);
2922 assert(p_manager != 00);
2923
2924 OPJ_UNUSED(jp2);
2925 OPJ_UNUSED(p_manager);
2926
2927 /* DEVELOPER CORNER, add your custom validation procedure */
2928
2929 return OPJ_TRUE;
2930 }
2931
opj_jp2_setup_header_writing(opj_jp2_t * jp2,opj_event_mgr_t * p_manager)2932 static OPJ_BOOL opj_jp2_setup_header_writing(opj_jp2_t *jp2,
2933 opj_event_mgr_t * p_manager)
2934 {
2935 /* preconditions */
2936 assert(jp2 != 00);
2937 assert(p_manager != 00);
2938
2939 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2940 (opj_procedure)opj_jp2_write_jp, p_manager)) {
2941 return OPJ_FALSE;
2942 }
2943 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2944 (opj_procedure)opj_jp2_write_ftyp, p_manager)) {
2945 return OPJ_FALSE;
2946 }
2947 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2948 (opj_procedure)opj_jp2_write_jp2h, p_manager)) {
2949 return OPJ_FALSE;
2950 }
2951 if (jp2->jpip_on) {
2952 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2953 (opj_procedure)opj_jpip_skip_iptr, p_manager)) {
2954 return OPJ_FALSE;
2955 }
2956 }
2957 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2958 (opj_procedure)opj_jp2_skip_jp2c, p_manager)) {
2959 return OPJ_FALSE;
2960 }
2961
2962 /* DEVELOPER CORNER, insert your custom procedures */
2963
2964 return OPJ_TRUE;
2965 }
2966
opj_jp2_setup_header_reading(opj_jp2_t * jp2,opj_event_mgr_t * p_manager)2967 static OPJ_BOOL opj_jp2_setup_header_reading(opj_jp2_t *jp2,
2968 opj_event_mgr_t * p_manager)
2969 {
2970 /* preconditions */
2971 assert(jp2 != 00);
2972 assert(p_manager != 00);
2973
2974 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2975 (opj_procedure)opj_jp2_read_header_procedure, p_manager)) {
2976 return OPJ_FALSE;
2977 }
2978
2979 /* DEVELOPER CORNER, add your custom procedures */
2980
2981 return OPJ_TRUE;
2982 }
2983
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)2984 OPJ_BOOL opj_jp2_read_tile_header(opj_jp2_t * p_jp2,
2985 OPJ_UINT32 * p_tile_index,
2986 OPJ_UINT32 * p_data_size,
2987 OPJ_INT32 * p_tile_x0,
2988 OPJ_INT32 * p_tile_y0,
2989 OPJ_INT32 * p_tile_x1,
2990 OPJ_INT32 * p_tile_y1,
2991 OPJ_UINT32 * p_nb_comps,
2992 OPJ_BOOL * p_go_on,
2993 opj_stream_private_t *p_stream,
2994 opj_event_mgr_t * p_manager
2995 )
2996 {
2997 return opj_j2k_read_tile_header(p_jp2->j2k,
2998 p_tile_index,
2999 p_data_size,
3000 p_tile_x0, p_tile_y0,
3001 p_tile_x1, p_tile_y1,
3002 p_nb_comps,
3003 p_go_on,
3004 p_stream,
3005 p_manager);
3006 }
3007
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)3008 OPJ_BOOL opj_jp2_write_tile(opj_jp2_t *p_jp2,
3009 OPJ_UINT32 p_tile_index,
3010 OPJ_BYTE * p_data,
3011 OPJ_UINT32 p_data_size,
3012 opj_stream_private_t *p_stream,
3013 opj_event_mgr_t * p_manager
3014 )
3015
3016 {
3017 return opj_j2k_write_tile(p_jp2->j2k, p_tile_index, p_data, p_data_size,
3018 p_stream, p_manager);
3019 }
3020
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)3021 OPJ_BOOL opj_jp2_decode_tile(opj_jp2_t * p_jp2,
3022 OPJ_UINT32 p_tile_index,
3023 OPJ_BYTE * p_data,
3024 OPJ_UINT32 p_data_size,
3025 opj_stream_private_t *p_stream,
3026 opj_event_mgr_t * p_manager
3027 )
3028 {
3029 return opj_j2k_decode_tile(p_jp2->j2k, p_tile_index, p_data, p_data_size,
3030 p_stream, p_manager);
3031 }
3032
opj_jp2_destroy(opj_jp2_t * jp2)3033 void opj_jp2_destroy(opj_jp2_t *jp2)
3034 {
3035 if (jp2) {
3036 /* destroy the J2K codec */
3037 opj_j2k_destroy(jp2->j2k);
3038 jp2->j2k = 00;
3039
3040 if (jp2->comps) {
3041 opj_free(jp2->comps);
3042 jp2->comps = 00;
3043 }
3044
3045 if (jp2->cl) {
3046 opj_free(jp2->cl);
3047 jp2->cl = 00;
3048 }
3049
3050 if (jp2->color.icc_profile_buf) {
3051 opj_free(jp2->color.icc_profile_buf);
3052 jp2->color.icc_profile_buf = 00;
3053 }
3054
3055 if (jp2->color.jp2_cdef) {
3056 if (jp2->color.jp2_cdef->info) {
3057 opj_free(jp2->color.jp2_cdef->info);
3058 jp2->color.jp2_cdef->info = NULL;
3059 }
3060
3061 opj_free(jp2->color.jp2_cdef);
3062 jp2->color.jp2_cdef = 00;
3063 }
3064
3065 if (jp2->color.jp2_pclr) {
3066 if (jp2->color.jp2_pclr->cmap) {
3067 opj_free(jp2->color.jp2_pclr->cmap);
3068 jp2->color.jp2_pclr->cmap = NULL;
3069 }
3070 if (jp2->color.jp2_pclr->channel_sign) {
3071 opj_free(jp2->color.jp2_pclr->channel_sign);
3072 jp2->color.jp2_pclr->channel_sign = NULL;
3073 }
3074 if (jp2->color.jp2_pclr->channel_size) {
3075 opj_free(jp2->color.jp2_pclr->channel_size);
3076 jp2->color.jp2_pclr->channel_size = NULL;
3077 }
3078 if (jp2->color.jp2_pclr->entries) {
3079 opj_free(jp2->color.jp2_pclr->entries);
3080 jp2->color.jp2_pclr->entries = NULL;
3081 }
3082
3083 opj_free(jp2->color.jp2_pclr);
3084 jp2->color.jp2_pclr = 00;
3085 }
3086
3087 if (jp2->m_validation_list) {
3088 opj_procedure_list_destroy(jp2->m_validation_list);
3089 jp2->m_validation_list = 00;
3090 }
3091
3092 if (jp2->m_procedure_list) {
3093 opj_procedure_list_destroy(jp2->m_procedure_list);
3094 jp2->m_procedure_list = 00;
3095 }
3096
3097 opj_free(jp2);
3098 }
3099 }
3100
opj_jp2_set_decoded_components(opj_jp2_t * p_jp2,OPJ_UINT32 numcomps,const OPJ_UINT32 * comps_indices,opj_event_mgr_t * p_manager)3101 OPJ_BOOL opj_jp2_set_decoded_components(opj_jp2_t *p_jp2,
3102 OPJ_UINT32 numcomps,
3103 const OPJ_UINT32* comps_indices,
3104 opj_event_mgr_t * p_manager)
3105 {
3106 return opj_j2k_set_decoded_components(p_jp2->j2k,
3107 numcomps, comps_indices,
3108 p_manager);
3109 }
3110
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)3111 OPJ_BOOL opj_jp2_set_decode_area(opj_jp2_t *p_jp2,
3112 opj_image_t* p_image,
3113 OPJ_INT32 p_start_x, OPJ_INT32 p_start_y,
3114 OPJ_INT32 p_end_x, OPJ_INT32 p_end_y,
3115 opj_event_mgr_t * p_manager
3116 )
3117 {
3118 return opj_j2k_set_decode_area(p_jp2->j2k, p_image, p_start_x, p_start_y,
3119 p_end_x, p_end_y, p_manager);
3120 }
3121
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)3122 OPJ_BOOL opj_jp2_get_tile(opj_jp2_t *p_jp2,
3123 opj_stream_private_t *p_stream,
3124 opj_image_t* p_image,
3125 opj_event_mgr_t * p_manager,
3126 OPJ_UINT32 tile_index
3127 )
3128 {
3129 if (!p_image) {
3130 return OPJ_FALSE;
3131 }
3132
3133 opj_event_msg(p_manager, EVT_WARNING,
3134 "JP2 box which are after the codestream will not be read by this function.\n");
3135
3136 if (! opj_j2k_get_tile(p_jp2->j2k, p_stream, p_image, p_manager, tile_index)) {
3137 opj_event_msg(p_manager, EVT_ERROR,
3138 "Failed to decode the codestream in the JP2 file\n");
3139 return OPJ_FALSE;
3140 }
3141
3142 if (p_jp2->j2k->m_specific_param.m_decoder.m_numcomps_to_decode) {
3143 /* Bypass all JP2 component transforms */
3144 return OPJ_TRUE;
3145 }
3146
3147 if (!opj_jp2_check_color(p_image, &(p_jp2->color), p_manager)) {
3148 return OPJ_FALSE;
3149 }
3150
3151 /* Set Image Color Space */
3152 if (p_jp2->enumcs == 16) {
3153 p_image->color_space = OPJ_CLRSPC_SRGB;
3154 } else if (p_jp2->enumcs == 17) {
3155 p_image->color_space = OPJ_CLRSPC_GRAY;
3156 } else if (p_jp2->enumcs == 18) {
3157 p_image->color_space = OPJ_CLRSPC_SYCC;
3158 } else if (p_jp2->enumcs == 24) {
3159 p_image->color_space = OPJ_CLRSPC_EYCC;
3160 } else if (p_jp2->enumcs == 12) {
3161 p_image->color_space = OPJ_CLRSPC_CMYK;
3162 } else {
3163 p_image->color_space = OPJ_CLRSPC_UNKNOWN;
3164 }
3165
3166 if (p_jp2->color.jp2_pclr) {
3167 /* Part 1, I.5.3.4: Either both or none : */
3168 if (!p_jp2->color.jp2_pclr->cmap) {
3169 opj_jp2_free_pclr(&(p_jp2->color));
3170 } else {
3171 if (!opj_jp2_apply_pclr(p_image, &(p_jp2->color), p_manager)) {
3172 return OPJ_FALSE;
3173 }
3174 }
3175 }
3176
3177 /* Apply the color space if needed */
3178 if (p_jp2->color.jp2_cdef) {
3179 opj_jp2_apply_cdef(p_image, &(p_jp2->color), p_manager);
3180 }
3181
3182 if (p_jp2->color.icc_profile_buf) {
3183 p_image->icc_profile_buf = p_jp2->color.icc_profile_buf;
3184 p_image->icc_profile_len = p_jp2->color.icc_profile_len;
3185 p_jp2->color.icc_profile_buf = NULL;
3186 }
3187
3188 return OPJ_TRUE;
3189 }
3190
3191 /* ----------------------------------------------------------------------- */
3192 /* JP2 encoder interface */
3193 /* ----------------------------------------------------------------------- */
3194
opj_jp2_create(OPJ_BOOL p_is_decoder)3195 opj_jp2_t* opj_jp2_create(OPJ_BOOL p_is_decoder)
3196 {
3197 opj_jp2_t *jp2 = (opj_jp2_t*)opj_calloc(1, sizeof(opj_jp2_t));
3198 if (jp2) {
3199
3200 /* create the J2K codec */
3201 if (! p_is_decoder) {
3202 jp2->j2k = opj_j2k_create_compress();
3203 } else {
3204 jp2->j2k = opj_j2k_create_decompress();
3205 }
3206
3207 if (jp2->j2k == 00) {
3208 opj_jp2_destroy(jp2);
3209 return 00;
3210 }
3211
3212 /* Color structure */
3213 jp2->color.icc_profile_buf = NULL;
3214 jp2->color.icc_profile_len = 0;
3215 jp2->color.jp2_cdef = NULL;
3216 jp2->color.jp2_pclr = NULL;
3217 jp2->color.jp2_has_colr = 0;
3218
3219 /* validation list creation */
3220 jp2->m_validation_list = opj_procedure_list_create();
3221 if (! jp2->m_validation_list) {
3222 opj_jp2_destroy(jp2);
3223 return 00;
3224 }
3225
3226 /* execution list creation */
3227 jp2->m_procedure_list = opj_procedure_list_create();
3228 if (! jp2->m_procedure_list) {
3229 opj_jp2_destroy(jp2);
3230 return 00;
3231 }
3232 }
3233
3234 return jp2;
3235 }
3236
jp2_dump(opj_jp2_t * p_jp2,OPJ_INT32 flag,FILE * out_stream)3237 void jp2_dump(opj_jp2_t* p_jp2, OPJ_INT32 flag, FILE* out_stream)
3238 {
3239 /* preconditions */
3240 assert(p_jp2 != 00);
3241
3242 j2k_dump(p_jp2->j2k,
3243 flag,
3244 out_stream);
3245 }
3246
jp2_get_cstr_index(opj_jp2_t * p_jp2)3247 opj_codestream_index_t* jp2_get_cstr_index(opj_jp2_t* p_jp2)
3248 {
3249 return j2k_get_cstr_index(p_jp2->j2k);
3250 }
3251
jp2_get_cstr_info(opj_jp2_t * p_jp2)3252 opj_codestream_info_v2_t* jp2_get_cstr_info(opj_jp2_t* p_jp2)
3253 {
3254 return j2k_get_cstr_info(p_jp2->j2k);
3255 }
3256
opj_jp2_set_decoded_resolution_factor(opj_jp2_t * p_jp2,OPJ_UINT32 res_factor,opj_event_mgr_t * p_manager)3257 OPJ_BOOL opj_jp2_set_decoded_resolution_factor(opj_jp2_t *p_jp2,
3258 OPJ_UINT32 res_factor,
3259 opj_event_mgr_t * p_manager)
3260 {
3261 return opj_j2k_set_decoded_resolution_factor(p_jp2->j2k, res_factor, p_manager);
3262 }
3263
3264 /* ----------------------------------------------------------------------- */
3265
opj_jp2_encoder_set_extra_options(opj_jp2_t * p_jp2,const char * const * p_options,opj_event_mgr_t * p_manager)3266 OPJ_BOOL opj_jp2_encoder_set_extra_options(
3267 opj_jp2_t *p_jp2,
3268 const char* const* p_options,
3269 opj_event_mgr_t * p_manager)
3270 {
3271 return opj_j2k_encoder_set_extra_options(p_jp2->j2k, p_options, p_manager);
3272 }
3273
3274 /* ----------------------------------------------------------------------- */
3275
3276 /* JPIP specific */
3277
3278 #ifdef USE_JPIP
opj_jpip_write_iptr(opj_jp2_t * jp2,opj_stream_private_t * cio,opj_event_mgr_t * p_manager)3279 static OPJ_BOOL opj_jpip_write_iptr(opj_jp2_t *jp2,
3280 opj_stream_private_t *cio,
3281 opj_event_mgr_t * p_manager)
3282 {
3283 OPJ_OFF_T j2k_codestream_exit;
3284 OPJ_BYTE l_data_header [24];
3285
3286 /* preconditions */
3287 assert(jp2 != 00);
3288 assert(cio != 00);
3289 assert(p_manager != 00);
3290 assert(opj_stream_has_seek(cio));
3291
3292 j2k_codestream_exit = opj_stream_tell(cio);
3293 opj_write_bytes(l_data_header, 24, 4); /* size of iptr */
3294 opj_write_bytes(l_data_header + 4, JPIP_IPTR,
3295 4); /* IPTR */
3296 #if 0
3297 opj_write_bytes(l_data_header + 4 + 4, 0, 8); /* offset */
3298 opj_write_bytes(l_data_header + 8 + 8, 0, 8); /* length */
3299 #else
3300 opj_write_double(l_data_header + 4 + 4, 0); /* offset */
3301 opj_write_double(l_data_header + 8 + 8, 0); /* length */
3302 #endif
3303
3304 if (! opj_stream_seek(cio, jp2->jpip_iptr_offset, p_manager)) {
3305 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3306 return OPJ_FALSE;
3307 }
3308
3309 if (opj_stream_write_data(cio, l_data_header, 24, p_manager) != 24) {
3310 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3311 return OPJ_FALSE;
3312 }
3313
3314 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
3315 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3316 return OPJ_FALSE;
3317 }
3318
3319 return OPJ_TRUE;
3320 }
3321
opj_jpip_write_fidx(opj_jp2_t * jp2,opj_stream_private_t * cio,opj_event_mgr_t * p_manager)3322 static OPJ_BOOL opj_jpip_write_fidx(opj_jp2_t *jp2,
3323 opj_stream_private_t *cio,
3324 opj_event_mgr_t * p_manager)
3325 {
3326 OPJ_OFF_T j2k_codestream_exit;
3327 OPJ_BYTE l_data_header [24];
3328
3329 OPJ_UNUSED(jp2);
3330
3331 /* preconditions */
3332 assert(jp2 != 00);
3333 assert(cio != 00);
3334 assert(p_manager != 00);
3335 assert(opj_stream_has_seek(cio));
3336
3337 opj_write_bytes(l_data_header, 24, 4); /* size of iptr */
3338 opj_write_bytes(l_data_header + 4, JPIP_FIDX,
3339 4); /* IPTR */
3340 opj_write_double(l_data_header + 4 + 4, 0); /* offset */
3341 opj_write_double(l_data_header + 8 + 8, 0); /* length */
3342
3343 if (opj_stream_write_data(cio, l_data_header, 24, p_manager) != 24) {
3344 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3345 return OPJ_FALSE;
3346 }
3347
3348 j2k_codestream_exit = opj_stream_tell(cio);
3349 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
3350 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3351 return OPJ_FALSE;
3352 }
3353
3354 return OPJ_TRUE;
3355 }
3356
opj_jpip_write_cidx(opj_jp2_t * jp2,opj_stream_private_t * cio,opj_event_mgr_t * p_manager)3357 static OPJ_BOOL opj_jpip_write_cidx(opj_jp2_t *jp2,
3358 opj_stream_private_t *cio,
3359 opj_event_mgr_t * p_manager)
3360 {
3361 OPJ_OFF_T j2k_codestream_exit;
3362 OPJ_BYTE l_data_header [24];
3363
3364 OPJ_UNUSED(jp2);
3365
3366 /* preconditions */
3367 assert(jp2 != 00);
3368 assert(cio != 00);
3369 assert(p_manager != 00);
3370 assert(opj_stream_has_seek(cio));
3371
3372 j2k_codestream_exit = opj_stream_tell(cio);
3373 opj_write_bytes(l_data_header, 24, 4); /* size of iptr */
3374 opj_write_bytes(l_data_header + 4, JPIP_CIDX,
3375 4); /* IPTR */
3376 #if 0
3377 opj_write_bytes(l_data_header + 4 + 4, 0, 8); /* offset */
3378 opj_write_bytes(l_data_header + 8 + 8, 0, 8); /* length */
3379 #else
3380 opj_write_double(l_data_header + 4 + 4, 0); /* offset */
3381 opj_write_double(l_data_header + 8 + 8, 0); /* length */
3382 #endif
3383
3384 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
3385 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3386 return OPJ_FALSE;
3387 }
3388
3389 if (opj_stream_write_data(cio, l_data_header, 24, p_manager) != 24) {
3390 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3391 return OPJ_FALSE;
3392 }
3393
3394 j2k_codestream_exit = opj_stream_tell(cio);
3395 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
3396 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3397 return OPJ_FALSE;
3398 }
3399
3400 return OPJ_TRUE;
3401 }
3402
3403 #if 0
3404 static void write_prxy(int offset_jp2c, int length_jp2c, int offset_idx,
3405 int length_idx, opj_stream_private_t *cio,
3406 opj_event_mgr_t * p_manager)
3407 {
3408 OPJ_BYTE l_data_header [8];
3409 OPJ_OFF_T len, lenp;
3410
3411 lenp = opj_stream_tell(cio);
3412 opj_stream_skip(cio, 4, p_manager); /* L [at the end] */
3413 opj_write_bytes(l_data_header, JPIP_PRXY, 4); /* IPTR */
3414 opj_stream_write_data(cio, l_data_header, 4, p_manager);
3415
3416 opj_write_bytes(l_data_header, offset_jp2c, 8); /* OOFF */
3417 opj_stream_write_data(cio, l_data_header, 8, p_manager);
3418 opj_write_bytes(l_data_header, length_jp2c, 4); /* OBH part 1 */
3419 opj_write_bytes(l_data_header + 4, JP2_JP2C, 4); /* OBH part 2 */
3420 opj_stream_write_data(cio, l_data_header, 8, p_manager);
3421
3422 opj_write_bytes(l_data_header, 1, 1); /* NI */
3423 opj_stream_write_data(cio, l_data_header, 1, p_manager);
3424
3425 opj_write_bytes(l_data_header, offset_idx, 8); /* IOFF */
3426 opj_stream_write_data(cio, l_data_header, 8, p_manager);
3427 opj_write_bytes(l_data_header, length_idx, 4); /* IBH part 1 */
3428 opj_write_bytes(l_data_header + 4, JPIP_CIDX, 4); /* IBH part 2 */
3429 opj_stream_write_data(cio, l_data_header, 8, p_manager);
3430
3431 len = opj_stream_tell(cio) - lenp;
3432 opj_stream_skip(cio, lenp, p_manager);
3433 opj_write_bytes(l_data_header, len, 4); /* L */
3434 opj_stream_write_data(cio, l_data_header, 4, p_manager);
3435 opj_stream_seek(cio, lenp + len, p_manager);
3436 }
3437 #endif
3438
3439
3440 #if 0
3441 static int write_fidx(int offset_jp2c, int length_jp2c, int offset_idx,
3442 int length_idx, opj_stream_private_t *cio,
3443 opj_event_mgr_t * p_manager)
3444 {
3445 OPJ_BYTE l_data_header [4];
3446 OPJ_OFF_T len, lenp;
3447
3448 lenp = opj_stream_tell(cio);
3449 opj_stream_skip(cio, 4, p_manager);
3450 opj_write_bytes(l_data_header, JPIP_FIDX, 4); /* FIDX */
3451 opj_stream_write_data(cio, l_data_header, 4, p_manager);
3452
3453 write_prxy(offset_jp2c, length_jp2c, offset_idx, length_idx, cio, p_manager);
3454
3455 len = opj_stream_tell(cio) - lenp;
3456 opj_stream_skip(cio, lenp, p_manager);
3457 opj_write_bytes(l_data_header, len, 4); /* L */
3458 opj_stream_write_data(cio, l_data_header, 4, p_manager);
3459 opj_stream_seek(cio, lenp + len, p_manager);
3460
3461 return len;
3462 }
3463 #endif
3464 #endif /* USE_JPIP */
3465