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