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.
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.
19 * Redistribution and use in source and binary forms, with or without
20 * modification, are permitted provided that the following conditions
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.
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.
40 #include "opj_includes.h"
42 /** @defgroup JP2 JP2 - JPEG-2000 file format reader/writer */
45 #define OPJ_BOX_SIZE 1024
47 #define OPJ_UNUSED(x) (void)x
49 /** @name Local static functions */
52 /*static void jp2_write_url(opj_cio_t *cio, char *Idx_file);*/
55 * Reads a IHDR box - Image Header box
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.
62 * @return true if the image header is valid, false else.
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);
70 * Writes the Image Header box - Image Header box.
72 * @param jp2 jpeg2000 file codec.
73 * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
75 * @return the data being copied.
77 static OPJ_BYTE * opj_jp2_write_ihdr(opj_jp2_t *jp2,
78 OPJ_UINT32 * p_nb_bytes_written);
81 * Writes the Bit per Component box.
83 * @param jp2 jpeg2000 file codec.
84 * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
86 * @return the data being copied.
88 static OPJ_BYTE * opj_jp2_write_bpcc(opj_jp2_t *jp2,
89 OPJ_UINT32 * p_nb_bytes_written);
92 * Reads a Bit per Component box.
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.
99 * @return true if the bpc header is valid, false else.
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);
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);
111 static void opj_jp2_apply_cdef(opj_image_t *image, opj_jp2_color_t *color,
115 * Writes the Channel Definition box.
117 * @param jp2 jpeg2000 file codec.
118 * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
120 * @return the data being copied.
122 static OPJ_BYTE * opj_jp2_write_cdef(opj_jp2_t *jp2,
123 OPJ_UINT32 * p_nb_bytes_written);
126 * Writes the Colour Specification box.
128 * @param jp2 jpeg2000 file codec.
129 * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
131 * @return the data being copied.
133 static OPJ_BYTE * opj_jp2_write_colr(opj_jp2_t *jp2,
134 OPJ_UINT32 * p_nb_bytes_written);
137 * Writes a FTYP box - File type box
139 * @param cio the stream to write data to.
140 * @param jp2 the jpeg2000 file codec.
141 * @param p_manager the user event manager.
143 * @return true if writing was successful.
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);
150 * Reads a a FTYP box - File type box
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.
157 * @return true if the FTYP box is valid.
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);
164 static OPJ_BOOL opj_jp2_skip_jp2c(opj_jp2_t *jp2,
165 opj_stream_private_t *cio,
166 opj_event_mgr_t * p_manager);
169 * Reads the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box).
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.
176 * @return true if the JP2 Header box was successfully recognized.
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);
184 * Writes the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box).
186 * @param jp2 the jpeg2000 file codec.
187 * @param stream the stream to write data to.
188 * @param p_manager user event manager.
190 * @return true if writing was successful.
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);
197 * Writes the Jpeg2000 codestream Header box - JP2C Header box. This function must be called AFTER the coding has been done.
199 * @param cio the stream to write data to.
200 * @param jp2 the jpeg2000 file codec.
201 * @param p_manager user event manager.
203 * @return true if writing was successful.
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);
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.
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);
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.
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);
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.
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 */
242 * Reads a jpeg2000 file signature box.
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.
249 * @return true if the file signature box is valid.
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);
257 * Writes a jpeg2000 file signature box.
259 * @param cio the stream to write data to.
260 * @param jp2 the jpeg2000 file codec.
261 * @param p_manager the user event manager.
263 * @return true if writing was successful.
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);
270 Apply collected palette data
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
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);
280 static void opj_jp2_free_pclr(opj_jp2_color_t *color);
283 * Collect palette data
285 * @param jp2 JP2 handle
286 * @param p_pclr_header_data FIXME DOC
287 * @param p_pclr_header_size FIXME DOC
290 * @return Returns true if successful, returns false otherwise
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);
298 * Collect component mapping data
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
305 * @return Returns true if successful, returns false otherwise
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);
314 * Reads the Color Specification box.
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.
321 * @return true if the bpc header is valid, false else.
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);
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.
336 static OPJ_BOOL opj_jp2_setup_end_header_writing(opj_jp2_t *jp2,
337 opj_event_mgr_t * p_manager);
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.
343 static OPJ_BOOL opj_jp2_setup_end_header_reading(opj_jp2_t *jp2,
344 opj_event_mgr_t * p_manager);
347 * Reads a jpeg2000 file header structure.
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.
353 * @return true if the box is valid.
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);
360 * Executes the given procedures on the given codec.
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.
367 * @return true if all the procedures were successfully executed.
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);
375 * Reads a box header. The box is the way data is packed inside a jpeg2000 file structure.
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.
382 * @return true if the box is recognized, false otherwise
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);
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.
393 static OPJ_BOOL opj_jp2_setup_encoding_validation(opj_jp2_t *jp2,
394 opj_event_mgr_t * p_manager);
397 * Sets up the procedures to do on writing header. Developpers wanting to extend the library can add their own writing procedures.
399 static OPJ_BOOL opj_jp2_setup_header_writing(opj_jp2_t *jp2,
400 opj_event_mgr_t * p_manager);
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);
407 * Finds the image execution function related to the given box id.
409 * @param p_id the id of the handler to fetch.
411 * @return the given handler or NULL if it could not be found.
413 static const opj_jp2_header_handler_t * opj_jp2_img_find_handler(
417 * Finds the execution function related to the given box id.
419 * @param p_id the id of the handler to fetch.
421 * @return the given handler or NULL if it could not be found.
423 static const opj_jp2_header_handler_t * opj_jp2_find_handler(OPJ_UINT32 p_id);
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}
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}
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
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
450 * @return true if the box is recognized, false otherwise
452 static OPJ_BOOL opj_jp2_read_boxhdr_char(opj_jp2_box_t *box,
454 OPJ_UINT32 * p_number_bytes_read,
455 OPJ_UINT32 p_box_max_size,
456 opj_event_mgr_t * p_manager);
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.
462 static OPJ_BOOL opj_jp2_setup_decoding_validation(opj_jp2_t *jp2,
463 opj_event_mgr_t * p_manager);
466 * Sets up the procedures to do on reading header.
467 * Developpers wanting to extend the library can add their own writing procedures.
469 static OPJ_BOOL opj_jp2_setup_header_reading(opj_jp2_t *jp2,
470 opj_event_mgr_t * p_manager);
472 /* ----------------------------------------------------------------------- */
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)
478 /* read header from file */
479 OPJ_BYTE l_data_header [8];
484 assert(p_number_bytes_read != 00);
485 assert(p_manager != 00);
487 *p_number_bytes_read = (OPJ_UINT32)opj_stream_read_data(cio, l_data_header, 8,
489 if (*p_number_bytes_read != 8) {
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);
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");
504 box->length = (OPJ_UINT32)bleft + 8U;
505 assert((OPJ_OFF_T)box->length == bleft + 8);
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;
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;
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");
531 opj_read_bytes(l_data_header + 4, &(box->length), 4);
537 static void jp2_write_url(opj_cio_t *cio, char *Idx_file)
542 box.init_pos = cio_tell(cio);
544 cio_write(cio, JP2_URL, 4); /* DBTL */
545 cio_write(cio, 0, 1); /* VERS */
546 cio_write(cio, 0, 3); /* FLAG */
549 for (i = 0; i < strlen(Idx_file); i++) {
550 cio_write(cio, Idx_file[i], 1);
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);
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)
567 assert(p_image_header_data != 00);
569 assert(p_manager != 00);
571 if (jp2->comps != NULL) {
572 opj_event_msg(p_manager, EVT_WARNING,
573 "Ignoring ihdr box. First ihdr box already read\n");
577 if (p_image_header_size != 14) {
578 opj_event_msg(p_manager, EVT_ERROR, "Bad image header box (bad size)\n");
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;
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");
595 /* allocate memory for components */
596 jp2->comps = (opj_jp2_comps_t*) opj_calloc(jp2->numcomps,
597 sizeof(opj_jp2_comps_t));
598 if (jp2->comps == 0) {
599 opj_event_msg(p_manager, EVT_ERROR,
600 "Not enough memory to handle image header (ihdr)\n");
604 opj_read_bytes(p_image_header_data, &(jp2->bpc), 1); /* BPC */
605 ++ p_image_header_data;
607 opj_read_bytes(p_image_header_data, &(jp2->C), 1); /* C */
608 ++ p_image_header_data;
610 /* Should be equal to 7 cf. chapter about image header box of the norm */
612 opj_event_msg(p_manager, EVT_INFO,
613 "JP2 IHDR box: compression type indicate that the file is not a conforming JP2 file (%d) \n",
617 opj_read_bytes(p_image_header_data, &(jp2->UnkC), 1); /* UnkC */
618 ++ p_image_header_data;
619 opj_read_bytes(p_image_header_data, &(jp2->IPR), 1); /* IPR */
620 ++ p_image_header_data;
622 jp2->j2k->m_cp.bpc_is_255 = (jp2->bpc == 255);
623 jp2->j2k->ihdr_w = jp2->w;
624 jp2->j2k->ihdr_h = jp2->h;
630 static OPJ_BYTE * opj_jp2_write_ihdr(opj_jp2_t *jp2,
631 OPJ_UINT32 * p_nb_bytes_written
634 OPJ_BYTE * l_ihdr_data, * l_current_ihdr_ptr;
638 assert(p_nb_bytes_written != 00);
640 /* default image header is 22 bytes wide */
641 l_ihdr_data = (OPJ_BYTE *) opj_calloc(1, 22);
642 if (l_ihdr_data == 00) {
646 l_current_ihdr_ptr = l_ihdr_data;
648 opj_write_bytes(l_current_ihdr_ptr, 22, 4); /* write box size */
649 l_current_ihdr_ptr += 4;
651 opj_write_bytes(l_current_ihdr_ptr, JP2_IHDR, 4); /* IHDR */
652 l_current_ihdr_ptr += 4;
654 opj_write_bytes(l_current_ihdr_ptr, jp2->h, 4); /* HEIGHT */
655 l_current_ihdr_ptr += 4;
657 opj_write_bytes(l_current_ihdr_ptr, jp2->w, 4); /* WIDTH */
658 l_current_ihdr_ptr += 4;
660 opj_write_bytes(l_current_ihdr_ptr, jp2->numcomps, 2); /* NC */
661 l_current_ihdr_ptr += 2;
663 opj_write_bytes(l_current_ihdr_ptr, jp2->bpc, 1); /* BPC */
664 ++l_current_ihdr_ptr;
666 opj_write_bytes(l_current_ihdr_ptr, jp2->C, 1); /* C : Always 7 */
667 ++l_current_ihdr_ptr;
669 opj_write_bytes(l_current_ihdr_ptr, jp2->UnkC,
670 1); /* UnkC, colorspace unknown */
671 ++l_current_ihdr_ptr;
673 opj_write_bytes(l_current_ihdr_ptr, jp2->IPR,
674 1); /* IPR, no intellectual property */
675 ++l_current_ihdr_ptr;
677 *p_nb_bytes_written = 22;
682 static OPJ_BYTE * opj_jp2_write_bpcc(opj_jp2_t *jp2,
683 OPJ_UINT32 * p_nb_bytes_written
687 /* room for 8 bytes for box and 1 byte for each component */
688 OPJ_UINT32 l_bpcc_size;
689 OPJ_BYTE * l_bpcc_data, * l_current_bpcc_ptr;
693 assert(p_nb_bytes_written != 00);
694 l_bpcc_size = 8 + jp2->numcomps;
696 l_bpcc_data = (OPJ_BYTE *) opj_calloc(1, l_bpcc_size);
697 if (l_bpcc_data == 00) {
701 l_current_bpcc_ptr = l_bpcc_data;
703 opj_write_bytes(l_current_bpcc_ptr, l_bpcc_size,
704 4); /* write box size */
705 l_current_bpcc_ptr += 4;
707 opj_write_bytes(l_current_bpcc_ptr, JP2_BPCC, 4); /* BPCC */
708 l_current_bpcc_ptr += 4;
710 for (i = 0; i < jp2->numcomps; ++i) {
711 opj_write_bytes(l_current_bpcc_ptr, jp2->comps[i].bpcc,
712 1); /* write each component information */
713 ++l_current_bpcc_ptr;
716 *p_nb_bytes_written = l_bpcc_size;
721 static OPJ_BOOL opj_jp2_read_bpcc(opj_jp2_t *jp2,
722 OPJ_BYTE * p_bpc_header_data,
723 OPJ_UINT32 p_bpc_header_size,
724 opj_event_mgr_t * p_manager
730 assert(p_bpc_header_data != 00);
732 assert(p_manager != 00);
735 if (jp2->bpc != 255) {
736 opj_event_msg(p_manager, EVT_WARNING,
737 "A BPCC header box is available although BPC given by the IHDR box (%d) indicate components bit depth is constant\n",
741 /* and length is relevant */
742 if (p_bpc_header_size != jp2->numcomps) {
743 opj_event_msg(p_manager, EVT_ERROR, "Bad BPCC header box (bad size)\n");
747 /* read info for each component */
748 for (i = 0; i < jp2->numcomps; ++i) {
749 opj_read_bytes(p_bpc_header_data, &jp2->comps[i].bpcc,
750 1); /* read each BPCC component */
756 static OPJ_BYTE * opj_jp2_write_cdef(opj_jp2_t *jp2,
757 OPJ_UINT32 * p_nb_bytes_written)
759 /* room for 8 bytes for box, 2 for n */
760 OPJ_UINT32 l_cdef_size = 10;
761 OPJ_BYTE * l_cdef_data, * l_current_cdef_ptr;
767 assert(p_nb_bytes_written != 00);
768 assert(jp2->color.jp2_cdef != 00);
769 assert(jp2->color.jp2_cdef->info != 00);
770 assert(jp2->color.jp2_cdef->n > 0U);
772 l_cdef_size += 6U * jp2->color.jp2_cdef->n;
774 l_cdef_data = (OPJ_BYTE *) opj_malloc(l_cdef_size);
775 if (l_cdef_data == 00) {
779 l_current_cdef_ptr = l_cdef_data;
781 opj_write_bytes(l_current_cdef_ptr, l_cdef_size, 4); /* write box size */
782 l_current_cdef_ptr += 4;
784 opj_write_bytes(l_current_cdef_ptr, JP2_CDEF, 4); /* BPCC */
785 l_current_cdef_ptr += 4;
787 l_value = jp2->color.jp2_cdef->n;
788 opj_write_bytes(l_current_cdef_ptr, l_value, 2); /* N */
789 l_current_cdef_ptr += 2;
791 for (i = 0U; i < jp2->color.jp2_cdef->n; ++i) {
792 l_value = jp2->color.jp2_cdef->info[i].cn;
793 opj_write_bytes(l_current_cdef_ptr, l_value, 2); /* Cni */
794 l_current_cdef_ptr += 2;
795 l_value = jp2->color.jp2_cdef->info[i].typ;
796 opj_write_bytes(l_current_cdef_ptr, l_value, 2); /* Typi */
797 l_current_cdef_ptr += 2;
798 l_value = jp2->color.jp2_cdef->info[i].asoc;
799 opj_write_bytes(l_current_cdef_ptr, l_value, 2); /* Asoci */
800 l_current_cdef_ptr += 2;
802 *p_nb_bytes_written = l_cdef_size;
807 static OPJ_BYTE * opj_jp2_write_colr(opj_jp2_t *jp2,
808 OPJ_UINT32 * p_nb_bytes_written
811 /* room for 8 bytes for box 3 for common data and variable upon profile*/
812 OPJ_UINT32 l_colr_size = 11;
813 OPJ_BYTE * l_colr_data, * l_current_colr_ptr;
817 assert(p_nb_bytes_written != 00);
818 assert(jp2->meth == 1 || jp2->meth == 2);
822 l_colr_size += 4; /* EnumCS */
825 assert(jp2->color.icc_profile_len); /* ICC profile */
826 l_colr_size += jp2->color.icc_profile_len;
832 l_colr_data = (OPJ_BYTE *) opj_calloc(1, l_colr_size);
833 if (l_colr_data == 00) {
837 l_current_colr_ptr = l_colr_data;
839 opj_write_bytes(l_current_colr_ptr, l_colr_size,
840 4); /* write box size */
841 l_current_colr_ptr += 4;
843 opj_write_bytes(l_current_colr_ptr, JP2_COLR, 4); /* BPCC */
844 l_current_colr_ptr += 4;
846 opj_write_bytes(l_current_colr_ptr, jp2->meth, 1); /* METH */
847 ++l_current_colr_ptr;
849 opj_write_bytes(l_current_colr_ptr, jp2->precedence, 1); /* PRECEDENCE */
850 ++l_current_colr_ptr;
852 opj_write_bytes(l_current_colr_ptr, jp2->approx, 1); /* APPROX */
853 ++l_current_colr_ptr;
856 1) { /* Meth value is restricted to 1 or 2 (Table I.9 of part 1) */
857 opj_write_bytes(l_current_colr_ptr, jp2->enumcs, 4);
860 if (jp2->meth == 2) { /* ICC profile */
862 for (i = 0; i < jp2->color.icc_profile_len; ++i) {
863 opj_write_bytes(l_current_colr_ptr, jp2->color.icc_profile_buf[i], 1);
864 ++l_current_colr_ptr;
869 *p_nb_bytes_written = l_colr_size;
874 static void opj_jp2_free_pclr(opj_jp2_color_t *color)
876 opj_free(color->jp2_pclr->channel_sign);
877 opj_free(color->jp2_pclr->channel_size);
878 opj_free(color->jp2_pclr->entries);
880 if (color->jp2_pclr->cmap) {
881 opj_free(color->jp2_pclr->cmap);
884 opj_free(color->jp2_pclr);
885 color->jp2_pclr = NULL;
888 static OPJ_BOOL opj_jp2_check_color(opj_image_t *image, opj_jp2_color_t *color,
889 opj_event_mgr_t *p_manager)
893 /* testcase 4149.pdf.SIGSEGV.cf7.3501 */
894 if (color->jp2_cdef) {
895 opj_jp2_cdef_info_t *info = color->jp2_cdef->info;
896 OPJ_UINT16 n = color->jp2_cdef->n;
897 OPJ_UINT32 nr_channels =
898 image->numcomps; /* FIXME image->numcomps == jp2->numcomps before color is applied ??? */
900 /* cdef applies to cmap channels if any */
901 if (color->jp2_pclr && color->jp2_pclr->cmap) {
902 nr_channels = (OPJ_UINT32)color->jp2_pclr->nr_channels;
905 for (i = 0; i < n; i++) {
906 if (info[i].cn >= nr_channels) {
907 opj_event_msg(p_manager, EVT_ERROR, "Invalid component index %d (>= %d).\n",
908 info[i].cn, nr_channels);
911 if (info[i].asoc == 65535U) {
915 if (info[i].asoc > 0 && (OPJ_UINT32)(info[i].asoc - 1) >= nr_channels) {
916 opj_event_msg(p_manager, EVT_ERROR, "Invalid component index %d (>= %d).\n",
917 info[i].asoc - 1, nr_channels);
923 /* ISO 15444-1 states that if cdef is present, it shall contain a complete list of channel definitions. */
924 while (nr_channels > 0) {
925 for (i = 0; i < n; ++i) {
926 if ((OPJ_UINT32)info[i].cn == (nr_channels - 1U)) {
931 opj_event_msg(p_manager, EVT_ERROR, "Incomplete channel definitions.\n");
938 /* testcases 451.pdf.SIGSEGV.f4c.3723, 451.pdf.SIGSEGV.5b5.3723 and
939 66ea31acbb0f23a2bbc91f64d69a03f5_signal_sigsegv_13937c0_7030_5725.pdf */
940 if (color->jp2_pclr && color->jp2_pclr->cmap) {
941 OPJ_UINT16 nr_channels = color->jp2_pclr->nr_channels;
942 opj_jp2_cmap_comp_t *cmap = color->jp2_pclr->cmap;
943 OPJ_BOOL *pcol_usage, is_sane = OPJ_TRUE;
945 /* verify that all original components match an existing one */
946 for (i = 0; i < nr_channels; i++) {
947 if (cmap[i].cmp >= image->numcomps) {
948 opj_event_msg(p_manager, EVT_ERROR, "Invalid component index %d (>= %d).\n",
949 cmap[i].cmp, image->numcomps);
954 pcol_usage = (OPJ_BOOL *) opj_calloc(nr_channels, sizeof(OPJ_BOOL));
956 opj_event_msg(p_manager, EVT_ERROR, "Unexpected OOM.\n");
959 /* verify that no component is targeted more than once */
960 for (i = 0; i < nr_channels; i++) {
961 OPJ_UINT16 pcol = cmap[i].pcol;
962 /* See ISO 15444-1 Table I.14 – MTYPi field values */
963 if (cmap[i].mtyp != 0 && cmap[i].mtyp != 1) {
964 opj_event_msg(p_manager, EVT_ERROR,
965 "Invalid value for cmap[%d].mtyp = %d.\n", i,
968 } else if (pcol >= nr_channels) {
969 opj_event_msg(p_manager, EVT_ERROR,
970 "Invalid component/palette index for direct mapping %d.\n", pcol);
972 } else if (pcol_usage[pcol] && cmap[i].mtyp == 1) {
973 opj_event_msg(p_manager, EVT_ERROR, "Component %d is mapped twice.\n", pcol);
975 } else if (cmap[i].mtyp == 0 && cmap[i].pcol != 0) {
976 /* I.5.3.5 PCOL: If the value of the MTYP field for this channel is 0, then
977 * the value of this field shall be 0. */
978 opj_event_msg(p_manager, EVT_ERROR, "Direct use at #%d however pcol=%d.\n", i,
982 pcol_usage[pcol] = OPJ_TRUE;
985 /* verify that all components are targeted at least once */
986 for (i = 0; i < nr_channels; i++) {
987 if (!pcol_usage[i] && cmap[i].mtyp != 0) {
988 opj_event_msg(p_manager, EVT_ERROR, "Component %d doesn't have a mapping.\n",
993 /* Issue 235/447 weird cmap */
994 if (1 && is_sane && (image->numcomps == 1U)) {
995 for (i = 0; i < nr_channels; i++) {
996 if (!pcol_usage[i]) {
998 opj_event_msg(p_manager, EVT_WARNING,
999 "Component mapping seems wrong. Trying to correct.\n", i);
1005 for (i = 0; i < nr_channels; i++) {
1007 cmap[i].pcol = (OPJ_BYTE) i;
1011 opj_free(pcol_usage);
1021 static OPJ_BOOL opj_jp2_apply_pclr(opj_image_t *image,
1022 opj_jp2_color_t *color,
1023 opj_event_mgr_t * p_manager)
1025 opj_image_comp_t *old_comps, *new_comps;
1026 OPJ_BYTE *channel_size, *channel_sign;
1027 OPJ_UINT32 *entries;
1028 opj_jp2_cmap_comp_t *cmap;
1029 OPJ_INT32 *src, *dst;
1031 OPJ_UINT16 i, nr_channels, cmp, pcol;
1034 channel_size = color->jp2_pclr->channel_size;
1035 channel_sign = color->jp2_pclr->channel_sign;
1036 entries = color->jp2_pclr->entries;
1037 cmap = color->jp2_pclr->cmap;
1038 nr_channels = color->jp2_pclr->nr_channels;
1040 for (i = 0; i < nr_channels; ++i) {
1041 /* Palette mapping: */
1043 if (image->comps[cmp].data == NULL) {
1044 opj_event_msg(p_manager, EVT_ERROR,
1045 "image->comps[%d].data == NULL in opj_jp2_apply_pclr().\n", i);
1050 old_comps = image->comps;
1051 new_comps = (opj_image_comp_t*)
1052 opj_malloc(nr_channels * sizeof(opj_image_comp_t));
1054 opj_event_msg(p_manager, EVT_ERROR,
1055 "Memory allocation failure in opj_jp2_apply_pclr().\n");
1058 for (i = 0; i < nr_channels; ++i) {
1059 pcol = cmap[i].pcol;
1063 if (cmap[i].mtyp == 0) {
1065 new_comps[i] = old_comps[cmp];
1068 new_comps[pcol] = old_comps[cmp];
1071 /* Palette mapping: */
1072 new_comps[i].data = (OPJ_INT32*)
1073 opj_malloc(old_comps[cmp].w * old_comps[cmp].h * sizeof(OPJ_INT32));
1074 if (!new_comps[i].data) {
1077 opj_free(new_comps[i].data);
1079 opj_free(new_comps);
1080 opj_event_msg(p_manager, EVT_ERROR,
1081 "Memory allocation failure in opj_jp2_apply_pclr().\n");
1084 new_comps[i].prec = channel_size[i];
1085 new_comps[i].sgnd = channel_sign[i];
1088 top_k = color->jp2_pclr->nr_entries - 1;
1090 for (i = 0; i < nr_channels; ++i) {
1091 /* Palette mapping: */
1093 pcol = cmap[i].pcol;
1094 src = old_comps[cmp].data;
1095 assert(src); /* verified above */
1096 max = new_comps[pcol].w * new_comps[pcol].h;
1099 if (cmap[i].mtyp == 0) {
1101 dst = new_comps[i].data;
1103 for (j = 0; j < max; ++j) {
1108 dst = new_comps[pcol].data;
1110 for (j = 0; j < max; ++j) {
1112 if ((k = src[j]) < 0) {
1114 } else if (k > top_k) {
1119 dst[j] = (OPJ_INT32)entries[k * nr_channels + pcol];
1124 max = image->numcomps;
1125 for (i = 0; i < max; ++i) {
1126 if (old_comps[i].data) {
1127 opj_free(old_comps[i].data);
1131 opj_free(old_comps);
1132 image->comps = new_comps;
1133 image->numcomps = nr_channels;
1135 opj_jp2_free_pclr(color);
1140 static OPJ_BOOL opj_jp2_read_pclr(opj_jp2_t *jp2,
1141 OPJ_BYTE * p_pclr_header_data,
1142 OPJ_UINT32 p_pclr_header_size,
1143 opj_event_mgr_t * p_manager
1146 opj_jp2_pclr_t *jp2_pclr;
1147 OPJ_BYTE *channel_size, *channel_sign;
1148 OPJ_UINT32 *entries;
1149 OPJ_UINT16 nr_entries, nr_channels;
1152 OPJ_BYTE *orig_header_data = p_pclr_header_data;
1155 assert(p_pclr_header_data != 00);
1157 assert(p_manager != 00);
1158 (void)p_pclr_header_size;
1160 if (jp2->color.jp2_pclr) {
1164 if (p_pclr_header_size < 3) {
1168 opj_read_bytes(p_pclr_header_data, &l_value, 2); /* NE */
1169 p_pclr_header_data += 2;
1170 nr_entries = (OPJ_UINT16) l_value;
1171 if ((nr_entries == 0U) || (nr_entries > 1024U)) {
1172 opj_event_msg(p_manager, EVT_ERROR, "Invalid PCLR box. Reports %d entries\n",
1177 opj_read_bytes(p_pclr_header_data, &l_value, 1); /* NPC */
1178 ++p_pclr_header_data;
1179 nr_channels = (OPJ_UINT16) l_value;
1180 if (nr_channels == 0U) {
1181 opj_event_msg(p_manager, EVT_ERROR,
1182 "Invalid PCLR box. Reports 0 palette columns\n");
1186 if (p_pclr_header_size < 3 + (OPJ_UINT32)nr_channels) {
1190 entries = (OPJ_UINT32*) opj_malloc((size_t)nr_channels * nr_entries * sizeof(
1195 channel_size = (OPJ_BYTE*) opj_malloc(nr_channels);
1196 if (!channel_size) {
1200 channel_sign = (OPJ_BYTE*) opj_malloc(nr_channels);
1201 if (!channel_sign) {
1203 opj_free(channel_size);
1207 jp2_pclr = (opj_jp2_pclr_t*)opj_malloc(sizeof(opj_jp2_pclr_t));
1210 opj_free(channel_size);
1211 opj_free(channel_sign);
1215 jp2_pclr->channel_sign = channel_sign;
1216 jp2_pclr->channel_size = channel_size;
1217 jp2_pclr->entries = entries;
1218 jp2_pclr->nr_entries = nr_entries;
1219 jp2_pclr->nr_channels = (OPJ_BYTE) l_value;
1220 jp2_pclr->cmap = NULL;
1222 jp2->color.jp2_pclr = jp2_pclr;
1224 for (i = 0; i < nr_channels; ++i) {
1225 opj_read_bytes(p_pclr_header_data, &l_value, 1); /* Bi */
1226 ++p_pclr_header_data;
1228 channel_size[i] = (OPJ_BYTE)((l_value & 0x7f) + 1);
1229 channel_sign[i] = (l_value & 0x80) ? 1 : 0;
1232 for (j = 0; j < nr_entries; ++j) {
1233 for (i = 0; i < nr_channels; ++i) {
1234 OPJ_UINT32 bytes_to_read = (OPJ_UINT32)((channel_size[i] + 7) >> 3);
1236 if (bytes_to_read > sizeof(OPJ_UINT32)) {
1237 bytes_to_read = sizeof(OPJ_UINT32);
1239 if ((ptrdiff_t)p_pclr_header_size < (ptrdiff_t)(p_pclr_header_data -
1240 orig_header_data) + (ptrdiff_t)bytes_to_read) {
1244 opj_read_bytes(p_pclr_header_data, &l_value, bytes_to_read); /* Cji */
1245 p_pclr_header_data += bytes_to_read;
1246 *entries = (OPJ_UINT32) l_value;
1254 static OPJ_BOOL opj_jp2_read_cmap(opj_jp2_t * jp2,
1255 OPJ_BYTE * p_cmap_header_data,
1256 OPJ_UINT32 p_cmap_header_size,
1257 opj_event_mgr_t * p_manager
1260 opj_jp2_cmap_comp_t *cmap;
1261 OPJ_BYTE i, nr_channels;
1266 assert(p_cmap_header_data != 00);
1267 assert(p_manager != 00);
1268 (void)p_cmap_header_size;
1270 /* Need nr_channels: */
1271 if (jp2->color.jp2_pclr == NULL) {
1272 opj_event_msg(p_manager, EVT_ERROR,
1273 "Need to read a PCLR box before the CMAP box.\n");
1277 /* Part 1, I.5.3.5: 'There shall be at most one Component Mapping box
1278 * inside a JP2 Header box' :
1280 if (jp2->color.jp2_pclr->cmap) {
1281 opj_event_msg(p_manager, EVT_ERROR, "Only one CMAP box is allowed.\n");
1285 nr_channels = jp2->color.jp2_pclr->nr_channels;
1286 if (p_cmap_header_size < (OPJ_UINT32)nr_channels * 4) {
1287 opj_event_msg(p_manager, EVT_ERROR, "Insufficient data for CMAP box.\n");
1291 cmap = (opj_jp2_cmap_comp_t*) opj_malloc(nr_channels * sizeof(
1292 opj_jp2_cmap_comp_t));
1298 for (i = 0; i < nr_channels; ++i) {
1299 opj_read_bytes(p_cmap_header_data, &l_value, 2); /* CMP^i */
1300 p_cmap_header_data += 2;
1301 cmap[i].cmp = (OPJ_UINT16) l_value;
1303 opj_read_bytes(p_cmap_header_data, &l_value, 1); /* MTYP^i */
1304 ++p_cmap_header_data;
1305 cmap[i].mtyp = (OPJ_BYTE) l_value;
1307 opj_read_bytes(p_cmap_header_data, &l_value, 1); /* PCOL^i */
1308 ++p_cmap_header_data;
1309 cmap[i].pcol = (OPJ_BYTE) l_value;
1312 jp2->color.jp2_pclr->cmap = cmap;
1317 static void opj_jp2_apply_cdef(opj_image_t *image, opj_jp2_color_t *color,
1318 opj_event_mgr_t *manager)
1320 opj_jp2_cdef_info_t *info;
1321 OPJ_UINT16 i, n, cn, asoc, acn;
1323 info = color->jp2_cdef->info;
1324 n = color->jp2_cdef->n;
1326 for (i = 0; i < n; ++i) {
1327 /* WATCH: acn = asoc - 1 ! */
1328 asoc = info[i].asoc;
1331 if (cn >= image->numcomps) {
1332 opj_event_msg(manager, EVT_WARNING, "opj_jp2_apply_cdef: cn=%d, numcomps=%d\n",
1333 cn, image->numcomps);
1336 if (asoc == 0 || asoc == 65535) {
1337 image->comps[cn].alpha = info[i].typ;
1341 acn = (OPJ_UINT16)(asoc - 1);
1342 if (acn >= image->numcomps) {
1343 opj_event_msg(manager, EVT_WARNING, "opj_jp2_apply_cdef: acn=%d, numcomps=%d\n",
1344 acn, image->numcomps);
1348 /* Swap only if color channel */
1349 if ((cn != acn) && (info[i].typ == 0)) {
1350 opj_image_comp_t saved;
1353 memcpy(&saved, &image->comps[cn], sizeof(opj_image_comp_t));
1354 memcpy(&image->comps[cn], &image->comps[acn], sizeof(opj_image_comp_t));
1355 memcpy(&image->comps[acn], &saved, sizeof(opj_image_comp_t));
1357 /* Swap channels in following channel definitions, don't bother with j <= i that are already processed */
1358 for (j = (OPJ_UINT16)(i + 1U); j < n ; ++j) {
1359 if (info[j].cn == cn) {
1361 } else if (info[j].cn == acn) {
1364 /* asoc is related to color index. Do not update. */
1368 image->comps[cn].alpha = info[i].typ;
1371 if (color->jp2_cdef->info) {
1372 opj_free(color->jp2_cdef->info);
1375 opj_free(color->jp2_cdef);
1376 color->jp2_cdef = NULL;
1378 }/* jp2_apply_cdef() */
1380 static OPJ_BOOL opj_jp2_read_cdef(opj_jp2_t * jp2,
1381 OPJ_BYTE * p_cdef_header_data,
1382 OPJ_UINT32 p_cdef_header_size,
1383 opj_event_mgr_t * p_manager
1386 opj_jp2_cdef_info_t *cdef_info;
1392 assert(p_cdef_header_data != 00);
1393 assert(p_manager != 00);
1394 (void)p_cdef_header_size;
1396 /* Part 1, I.5.3.6: 'The shall be at most one Channel Definition box
1397 * inside a JP2 Header box.'*/
1398 if (jp2->color.jp2_cdef) {
1402 if (p_cdef_header_size < 2) {
1403 opj_event_msg(p_manager, EVT_ERROR, "Insufficient data for CDEF box.\n");
1407 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* N */
1408 p_cdef_header_data += 2;
1410 if ((OPJ_UINT16)l_value == 0) { /* szukw000: FIXME */
1411 opj_event_msg(p_manager, EVT_ERROR,
1412 "Number of channel description is equal to zero in CDEF box.\n");
1416 if (p_cdef_header_size < 2 + (OPJ_UINT32)(OPJ_UINT16)l_value * 6) {
1417 opj_event_msg(p_manager, EVT_ERROR, "Insufficient data for CDEF box.\n");
1421 cdef_info = (opj_jp2_cdef_info_t*) opj_malloc(l_value * sizeof(
1422 opj_jp2_cdef_info_t));
1427 jp2->color.jp2_cdef = (opj_jp2_cdef_t*)opj_malloc(sizeof(opj_jp2_cdef_t));
1428 if (!jp2->color.jp2_cdef) {
1429 opj_free(cdef_info);
1432 jp2->color.jp2_cdef->info = cdef_info;
1433 jp2->color.jp2_cdef->n = (OPJ_UINT16) l_value;
1435 for (i = 0; i < jp2->color.jp2_cdef->n; ++i) {
1436 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Cn^i */
1437 p_cdef_header_data += 2;
1438 cdef_info[i].cn = (OPJ_UINT16) l_value;
1440 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Typ^i */
1441 p_cdef_header_data += 2;
1442 cdef_info[i].typ = (OPJ_UINT16) l_value;
1444 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Asoc^i */
1445 p_cdef_header_data += 2;
1446 cdef_info[i].asoc = (OPJ_UINT16) l_value;
1452 static OPJ_BOOL opj_jp2_read_colr(opj_jp2_t *jp2,
1453 OPJ_BYTE * p_colr_header_data,
1454 OPJ_UINT32 p_colr_header_size,
1455 opj_event_mgr_t * p_manager
1462 assert(p_colr_header_data != 00);
1463 assert(p_manager != 00);
1465 if (p_colr_header_size < 3) {
1466 opj_event_msg(p_manager, EVT_ERROR, "Bad COLR header box (bad size)\n");
1470 /* Part 1, I.5.3.3 : 'A conforming JP2 reader shall ignore all Colour
1471 * Specification boxes after the first.'
1473 if (jp2->color.jp2_has_colr) {
1474 opj_event_msg(p_manager, EVT_INFO,
1475 "A conforming JP2 reader shall ignore all Colour Specification boxes after the first, so we ignore this one.\n");
1476 p_colr_header_data += p_colr_header_size;
1480 opj_read_bytes(p_colr_header_data, &jp2->meth, 1); /* METH */
1481 ++p_colr_header_data;
1483 opj_read_bytes(p_colr_header_data, &jp2->precedence, 1); /* PRECEDENCE */
1484 ++p_colr_header_data;
1486 opj_read_bytes(p_colr_header_data, &jp2->approx, 1); /* APPROX */
1487 ++p_colr_header_data;
1489 if (jp2->meth == 1) {
1490 if (p_colr_header_size < 7) {
1491 opj_event_msg(p_manager, EVT_ERROR, "Bad COLR header box (bad size: %d)\n",
1492 p_colr_header_size);
1495 if ((p_colr_header_size > 7) &&
1496 (jp2->enumcs != 14)) { /* handled below for CIELab) */
1497 /* testcase Altona_Technical_v20_x4.pdf */
1498 opj_event_msg(p_manager, EVT_WARNING, "Bad COLR header box (bad size: %d)\n",
1499 p_colr_header_size);
1502 opj_read_bytes(p_colr_header_data, &jp2->enumcs, 4); /* EnumCS */
1504 p_colr_header_data += 4;
1506 if (jp2->enumcs == 14) { /* CIELab */
1508 OPJ_UINT32 rl, ol, ra, oa, rb, ob, il;
1510 cielab = (OPJ_UINT32*)opj_malloc(9 * sizeof(OPJ_UINT32));
1511 if (cielab == NULL) {
1512 opj_event_msg(p_manager, EVT_ERROR, "Not enough memory for cielab\n");
1515 cielab[0] = 14; /* enumcs */
1517 /* default values */
1518 rl = ra = rb = ol = oa = ob = 0;
1519 il = 0x00443530; /* D50 */
1520 cielab[1] = 0x44454600;/* DEF */
1522 if (p_colr_header_size == 35) {
1523 opj_read_bytes(p_colr_header_data, &rl, 4);
1524 p_colr_header_data += 4;
1525 opj_read_bytes(p_colr_header_data, &ol, 4);
1526 p_colr_header_data += 4;
1527 opj_read_bytes(p_colr_header_data, &ra, 4);
1528 p_colr_header_data += 4;
1529 opj_read_bytes(p_colr_header_data, &oa, 4);
1530 p_colr_header_data += 4;
1531 opj_read_bytes(p_colr_header_data, &rb, 4);
1532 p_colr_header_data += 4;
1533 opj_read_bytes(p_colr_header_data, &ob, 4);
1534 p_colr_header_data += 4;
1535 opj_read_bytes(p_colr_header_data, &il, 4);
1536 p_colr_header_data += 4;
1539 } else if (p_colr_header_size != 7) {
1540 opj_event_msg(p_manager, EVT_WARNING,
1541 "Bad COLR header box (CIELab, bad size: %d)\n", p_colr_header_size);
1551 jp2->color.icc_profile_buf = (OPJ_BYTE*)cielab;
1552 jp2->color.icc_profile_len = 0;
1554 jp2->color.jp2_has_colr = 1;
1555 } else if (jp2->meth == 2) {
1557 OPJ_INT32 it_icc_value = 0;
1558 OPJ_INT32 icc_len = (OPJ_INT32)p_colr_header_size - 3;
1560 jp2->color.icc_profile_len = (OPJ_UINT32)icc_len;
1561 jp2->color.icc_profile_buf = (OPJ_BYTE*) opj_calloc(1, (size_t)icc_len);
1562 if (!jp2->color.icc_profile_buf) {
1563 jp2->color.icc_profile_len = 0;
1567 for (it_icc_value = 0; it_icc_value < icc_len; ++it_icc_value) {
1568 opj_read_bytes(p_colr_header_data, &l_value, 1); /* icc values */
1569 ++p_colr_header_data;
1570 jp2->color.icc_profile_buf[it_icc_value] = (OPJ_BYTE) l_value;
1573 jp2->color.jp2_has_colr = 1;
1574 } else if (jp2->meth > 2) {
1575 /* ISO/IEC 15444-1:2004 (E), Table I.9 Legal METH values:
1576 conforming JP2 reader shall ignore the entire Colour Specification box.*/
1577 opj_event_msg(p_manager, EVT_INFO,
1578 "COLR BOX meth value is not a regular value (%d), "
1579 "so we will ignore the entire Colour Specification box. \n", jp2->meth);
1581 if (jp2->color.jp2_has_colr) {
1582 jp2->j2k->enumcs = jp2->enumcs;
1587 OPJ_BOOL opj_jp2_decode(opj_jp2_t *jp2,
1588 opj_stream_private_t *p_stream,
1589 opj_image_t* p_image,
1590 opj_event_mgr_t * p_manager)
1597 if (! opj_j2k_decode(jp2->j2k, p_stream, p_image, p_manager)) {
1598 opj_event_msg(p_manager, EVT_ERROR,
1599 "Failed to decode the codestream in the JP2 file\n");
1603 if (!jp2->ignore_pclr_cmap_cdef) {
1604 if (!opj_jp2_check_color(p_image, &(jp2->color), p_manager)) {
1608 /* Set Image Color Space */
1609 if (jp2->enumcs == 16) {
1610 p_image->color_space = OPJ_CLRSPC_SRGB;
1611 } else if (jp2->enumcs == 17) {
1612 p_image->color_space = OPJ_CLRSPC_GRAY;
1613 } else if (jp2->enumcs == 18) {
1614 p_image->color_space = OPJ_CLRSPC_SYCC;
1615 } else if (jp2->enumcs == 24) {
1616 p_image->color_space = OPJ_CLRSPC_EYCC;
1617 } else if (jp2->enumcs == 12) {
1618 p_image->color_space = OPJ_CLRSPC_CMYK;
1620 p_image->color_space = OPJ_CLRSPC_UNKNOWN;
1623 if (jp2->color.jp2_pclr) {
1624 /* Part 1, I.5.3.4: Either both or none : */
1625 if (!jp2->color.jp2_pclr->cmap) {
1626 opj_jp2_free_pclr(&(jp2->color));
1628 if (!opj_jp2_apply_pclr(p_image, &(jp2->color), p_manager)) {
1634 /* Apply the color space if needed */
1635 if (jp2->color.jp2_cdef) {
1636 opj_jp2_apply_cdef(p_image, &(jp2->color), p_manager);
1639 if (jp2->color.icc_profile_buf) {
1640 p_image->icc_profile_buf = jp2->color.icc_profile_buf;
1641 p_image->icc_profile_len = jp2->color.icc_profile_len;
1642 jp2->color.icc_profile_buf = NULL;
1649 static OPJ_BOOL opj_jp2_write_jp2h(opj_jp2_t *jp2,
1650 opj_stream_private_t *stream,
1651 opj_event_mgr_t * p_manager
1654 opj_jp2_img_header_writer_handler_t l_writers [4];
1655 opj_jp2_img_header_writer_handler_t * l_current_writer;
1657 OPJ_INT32 i, l_nb_pass;
1658 /* size of data for super box*/
1659 OPJ_UINT32 l_jp2h_size = 8;
1660 OPJ_BOOL l_result = OPJ_TRUE;
1662 /* to store the data of the super box */
1663 OPJ_BYTE l_jp2h_data [8];
1666 assert(stream != 00);
1668 assert(p_manager != 00);
1670 memset(l_writers, 0, sizeof(l_writers));
1672 if (jp2->bpc == 255) {
1674 l_writers[0].handler = opj_jp2_write_ihdr;
1675 l_writers[1].handler = opj_jp2_write_bpcc;
1676 l_writers[2].handler = opj_jp2_write_colr;
1679 l_writers[0].handler = opj_jp2_write_ihdr;
1680 l_writers[1].handler = opj_jp2_write_colr;
1683 if (jp2->color.jp2_cdef != NULL) {
1684 l_writers[l_nb_pass].handler = opj_jp2_write_cdef;
1688 /* write box header */
1689 /* write JP2H type */
1690 opj_write_bytes(l_jp2h_data + 4, JP2_JP2H, 4);
1692 l_current_writer = l_writers;
1693 for (i = 0; i < l_nb_pass; ++i) {
1694 l_current_writer->m_data = l_current_writer->handler(jp2,
1695 &(l_current_writer->m_size));
1696 if (l_current_writer->m_data == 00) {
1697 opj_event_msg(p_manager, EVT_ERROR,
1698 "Not enough memory to hold JP2 Header data\n");
1699 l_result = OPJ_FALSE;
1703 l_jp2h_size += l_current_writer->m_size;
1708 l_current_writer = l_writers;
1709 for (i = 0; i < l_nb_pass; ++i) {
1710 if (l_current_writer->m_data != 00) {
1711 opj_free(l_current_writer->m_data);
1719 /* write super box size */
1720 opj_write_bytes(l_jp2h_data, l_jp2h_size, 4);
1722 /* write super box data on stream */
1723 if (opj_stream_write_data(stream, l_jp2h_data, 8, p_manager) != 8) {
1724 opj_event_msg(p_manager, EVT_ERROR,
1725 "Stream error while writing JP2 Header box\n");
1726 l_result = OPJ_FALSE;
1730 l_current_writer = l_writers;
1731 for (i = 0; i < l_nb_pass; ++i) {
1732 if (opj_stream_write_data(stream, l_current_writer->m_data,
1733 l_current_writer->m_size, p_manager) != l_current_writer->m_size) {
1734 opj_event_msg(p_manager, EVT_ERROR,
1735 "Stream error while writing JP2 Header box\n");
1736 l_result = OPJ_FALSE;
1743 l_current_writer = l_writers;
1746 for (i = 0; i < l_nb_pass; ++i) {
1747 if (l_current_writer->m_data != 00) {
1748 opj_free(l_current_writer->m_data);
1756 static OPJ_BOOL opj_jp2_write_ftyp(opj_jp2_t *jp2,
1757 opj_stream_private_t *cio,
1758 opj_event_mgr_t * p_manager)
1761 OPJ_UINT32 l_ftyp_size;
1762 OPJ_BYTE * l_ftyp_data, * l_current_data_ptr;
1768 assert(p_manager != 00);
1769 l_ftyp_size = 16 + 4 * jp2->numcl;
1771 l_ftyp_data = (OPJ_BYTE *) opj_calloc(1, l_ftyp_size);
1773 if (l_ftyp_data == 00) {
1774 opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to handle ftyp data\n");
1778 l_current_data_ptr = l_ftyp_data;
1780 opj_write_bytes(l_current_data_ptr, l_ftyp_size, 4); /* box size */
1781 l_current_data_ptr += 4;
1783 opj_write_bytes(l_current_data_ptr, JP2_FTYP, 4); /* FTYP */
1784 l_current_data_ptr += 4;
1786 opj_write_bytes(l_current_data_ptr, jp2->brand, 4); /* BR */
1787 l_current_data_ptr += 4;
1789 opj_write_bytes(l_current_data_ptr, jp2->minversion, 4); /* MinV */
1790 l_current_data_ptr += 4;
1792 for (i = 0; i < jp2->numcl; i++) {
1793 opj_write_bytes(l_current_data_ptr, jp2->cl[i], 4); /* CL */
1796 l_result = (opj_stream_write_data(cio, l_ftyp_data, l_ftyp_size,
1797 p_manager) == l_ftyp_size);
1799 opj_event_msg(p_manager, EVT_ERROR,
1800 "Error while writing ftyp data to stream\n");
1803 opj_free(l_ftyp_data);
1808 static OPJ_BOOL opj_jp2_write_jp2c(opj_jp2_t *jp2,
1809 opj_stream_private_t *cio,
1810 opj_event_mgr_t * p_manager)
1812 OPJ_OFF_T j2k_codestream_exit;
1813 OPJ_BYTE l_data_header [8];
1818 assert(p_manager != 00);
1819 assert(opj_stream_has_seek(cio));
1821 j2k_codestream_exit = opj_stream_tell(cio);
1822 opj_write_bytes(l_data_header,
1823 (OPJ_UINT32)(j2k_codestream_exit - jp2->j2k_codestream_offset),
1824 4); /* size of codestream */
1825 opj_write_bytes(l_data_header + 4, JP2_JP2C,
1828 if (! opj_stream_seek(cio, jp2->j2k_codestream_offset, p_manager)) {
1829 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
1833 if (opj_stream_write_data(cio, l_data_header, 8, p_manager) != 8) {
1834 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
1838 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
1839 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
1846 static OPJ_BOOL opj_jp2_write_jp(opj_jp2_t *jp2,
1847 opj_stream_private_t *cio,
1848 opj_event_mgr_t * p_manager)
1850 /* 12 bytes will be read */
1851 OPJ_BYTE l_signature_data [12];
1856 assert(p_manager != 00);
1860 /* write box length */
1861 opj_write_bytes(l_signature_data, 12, 4);
1862 /* writes box type */
1863 opj_write_bytes(l_signature_data + 4, JP2_JP, 4);
1864 /* writes magic number*/
1865 opj_write_bytes(l_signature_data + 8, 0x0d0a870a, 4);
1867 if (opj_stream_write_data(cio, l_signature_data, 12, p_manager) != 12) {
1874 /* ----------------------------------------------------------------------- */
1875 /* JP2 decoder interface */
1876 /* ----------------------------------------------------------------------- */
1878 void opj_jp2_setup_decoder(opj_jp2_t *jp2, opj_dparameters_t *parameters)
1880 /* setup the J2K codec */
1881 opj_j2k_setup_decoder(jp2->j2k, parameters);
1883 /* further JP2 initializations go here */
1884 jp2->color.jp2_has_colr = 0;
1885 jp2->ignore_pclr_cmap_cdef = parameters->flags &
1886 OPJ_DPARAMETERS_IGNORE_PCLR_CMAP_CDEF_FLAG;
1889 OPJ_BOOL opj_jp2_set_threads(opj_jp2_t *jp2, OPJ_UINT32 num_threads)
1891 return opj_j2k_set_threads(jp2->j2k, num_threads);
1894 /* ----------------------------------------------------------------------- */
1895 /* JP2 encoder interface */
1896 /* ----------------------------------------------------------------------- */
1898 OPJ_BOOL opj_jp2_setup_encoder(opj_jp2_t *jp2,
1899 opj_cparameters_t *parameters,
1901 opj_event_mgr_t * p_manager)
1906 OPJ_UINT32 alpha_count;
1907 OPJ_UINT32 color_channels = 0U;
1908 OPJ_UINT32 alpha_channel = 0U;
1911 if (!jp2 || !parameters || !image) {
1915 /* setup the J2K codec */
1916 /* ------------------- */
1918 /* Check if number of components respects standard */
1919 if (image->numcomps < 1 || image->numcomps > 16384) {
1920 opj_event_msg(p_manager, EVT_ERROR,
1921 "Invalid number of components specified while setting up JP2 encoder\n");
1925 if (opj_j2k_setup_encoder(jp2->j2k, parameters, image,
1926 p_manager) == OPJ_FALSE) {
1930 /* setup the JP2 codec */
1931 /* ------------------- */
1935 jp2->brand = JP2_JP2; /* BR */
1936 jp2->minversion = 0; /* MinV */
1938 jp2->cl = (OPJ_UINT32*) opj_malloc(jp2->numcl * sizeof(OPJ_UINT32));
1940 opj_event_msg(p_manager, EVT_ERROR,
1941 "Not enough memory when setup the JP2 encoder\n");
1944 jp2->cl[0] = JP2_JP2; /* CL0 : JP2 */
1946 /* Image Header box */
1948 jp2->numcomps = image->numcomps; /* NC */
1949 jp2->comps = (opj_jp2_comps_t*) opj_malloc(jp2->numcomps * sizeof(
1952 opj_event_msg(p_manager, EVT_ERROR,
1953 "Not enough memory when setup the JP2 encoder\n");
1954 /* Memory of jp2->cl will be freed by opj_jp2_destroy */
1958 jp2->h = image->y1 - image->y0; /* HEIGHT */
1959 jp2->w = image->x1 - image->x0; /* WIDTH */
1961 depth_0 = image->comps[0].prec - 1;
1962 sign = image->comps[0].sgnd;
1963 jp2->bpc = depth_0 + (sign << 7);
1964 for (i = 1; i < image->numcomps; i++) {
1965 OPJ_UINT32 depth = image->comps[i].prec - 1;
1966 sign = image->comps[i].sgnd;
1967 if (depth_0 != depth) {
1971 jp2->C = 7; /* C : Always 7 */
1972 jp2->UnkC = 0; /* UnkC, colorspace specified in colr box */
1973 jp2->IPR = 0; /* IPR, no intellectual property */
1975 /* BitsPerComponent box */
1976 for (i = 0; i < image->numcomps; i++) {
1977 jp2->comps[i].bpcc = image->comps[i].prec - 1 + (image->comps[i].sgnd << 7);
1980 /* Colour Specification box */
1981 if (image->icc_profile_len) {
1986 if (image->color_space == 1) {
1987 jp2->enumcs = 16; /* sRGB as defined by IEC 61966-2-1 */
1988 } else if (image->color_space == 2) {
1989 jp2->enumcs = 17; /* greyscale */
1990 } else if (image->color_space == 3) {
1991 jp2->enumcs = 18; /* YUV */
1995 /* Channel Definition box */
1996 /* FIXME not provided by parameters */
1997 /* We try to do what we can... */
1999 for (i = 0; i < image->numcomps; i++) {
2000 if (image->comps[i].alpha != 0) {
2005 if (alpha_count == 1U) { /* no way to deal with more than 1 alpha channel */
2006 switch (jp2->enumcs) {
2018 if (alpha_count == 0U) {
2019 opj_event_msg(p_manager, EVT_WARNING,
2020 "Alpha channel specified but unknown enumcs. No cdef box will be created.\n");
2021 } else if (image->numcomps < (color_channels + 1)) {
2022 opj_event_msg(p_manager, EVT_WARNING,
2023 "Alpha channel specified but not enough image components for an automatic cdef box creation.\n");
2025 } else if ((OPJ_UINT32)alpha_channel < color_channels) {
2026 opj_event_msg(p_manager, EVT_WARNING,
2027 "Alpha channel position conflicts with color channel. No cdef box will be created.\n");
2030 } else if (alpha_count > 1) {
2031 opj_event_msg(p_manager, EVT_WARNING,
2032 "Multiple alpha channels specified. No cdef box will be created.\n");
2034 if (alpha_count == 1U) { /* if here, we know what we can do */
2035 jp2->color.jp2_cdef = (opj_jp2_cdef_t*)opj_malloc(sizeof(opj_jp2_cdef_t));
2036 if (!jp2->color.jp2_cdef) {
2037 opj_event_msg(p_manager, EVT_ERROR,
2038 "Not enough memory to setup the JP2 encoder\n");
2041 /* no memset needed, all values will be overwritten except if jp2->color.jp2_cdef->info allocation fails, */
2042 /* in which case jp2->color.jp2_cdef->info will be NULL => valid for destruction */
2043 jp2->color.jp2_cdef->info = (opj_jp2_cdef_info_t*) opj_malloc(
2044 image->numcomps * sizeof(opj_jp2_cdef_info_t));
2045 if (!jp2->color.jp2_cdef->info) {
2046 /* memory will be freed by opj_jp2_destroy */
2047 opj_event_msg(p_manager, EVT_ERROR,
2048 "Not enough memory to setup the JP2 encoder\n");
2051 jp2->color.jp2_cdef->n = (OPJ_UINT16)
2052 image->numcomps; /* cast is valid : image->numcomps [1,16384] */
2053 for (i = 0U; i < color_channels; i++) {
2054 jp2->color.jp2_cdef->info[i].cn = (OPJ_UINT16)
2055 i; /* cast is valid : image->numcomps [1,16384] */
2056 jp2->color.jp2_cdef->info[i].typ = 0U;
2057 jp2->color.jp2_cdef->info[i].asoc = (OPJ_UINT16)(i +
2058 1U); /* No overflow + cast is valid : image->numcomps [1,16384] */
2060 for (; i < image->numcomps; i++) {
2061 if (image->comps[i].alpha != 0) { /* we'll be here exactly once */
2062 jp2->color.jp2_cdef->info[i].cn = (OPJ_UINT16)
2063 i; /* cast is valid : image->numcomps [1,16384] */
2064 jp2->color.jp2_cdef->info[i].typ = 1U; /* Opacity channel */
2065 jp2->color.jp2_cdef->info[i].asoc =
2066 0U; /* Apply alpha channel to the whole image */
2068 /* Unknown channel */
2069 jp2->color.jp2_cdef->info[i].cn = (OPJ_UINT16)
2070 i; /* cast is valid : image->numcomps [1,16384] */
2071 jp2->color.jp2_cdef->info[i].typ = 65535U;
2072 jp2->color.jp2_cdef->info[i].asoc = 65535U;
2077 jp2->precedence = 0; /* PRECEDENCE */
2078 jp2->approx = 0; /* APPROX */
2080 jp2->jpip_on = parameters->jpip_on;
2085 OPJ_BOOL opj_jp2_encode(opj_jp2_t *jp2,
2086 opj_stream_private_t *stream,
2087 opj_event_mgr_t * p_manager)
2089 return opj_j2k_encode(jp2->j2k, stream, p_manager);
2092 OPJ_BOOL opj_jp2_end_decompress(opj_jp2_t *jp2,
2093 opj_stream_private_t *cio,
2094 opj_event_mgr_t * p_manager
2100 assert(p_manager != 00);
2102 /* customization of the end encoding */
2103 if (! opj_jp2_setup_end_header_reading(jp2, p_manager)) {
2108 if (! opj_jp2_exec(jp2, jp2->m_procedure_list, cio, p_manager)) {
2112 return opj_j2k_end_decompress(jp2->j2k, cio, p_manager);
2115 OPJ_BOOL opj_jp2_end_compress(opj_jp2_t *jp2,
2116 opj_stream_private_t *cio,
2117 opj_event_mgr_t * p_manager
2123 assert(p_manager != 00);
2125 /* customization of the end encoding */
2126 if (! opj_jp2_setup_end_header_writing(jp2, p_manager)) {
2130 if (! opj_j2k_end_compress(jp2->j2k, cio, p_manager)) {
2135 return opj_jp2_exec(jp2, jp2->m_procedure_list, cio, p_manager);
2138 static OPJ_BOOL opj_jp2_setup_end_header_writing(opj_jp2_t *jp2,
2139 opj_event_mgr_t * p_manager)
2143 assert(p_manager != 00);
2147 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2148 (opj_procedure)opj_jpip_write_iptr, p_manager)) {
2153 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2154 (opj_procedure)opj_jp2_write_jp2c, p_manager)) {
2157 /* DEVELOPER CORNER, add your custom procedures */
2160 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2161 (opj_procedure)opj_jpip_write_cidx, p_manager)) {
2164 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2165 (opj_procedure)opj_jpip_write_fidx, p_manager)) {
2173 static OPJ_BOOL opj_jp2_setup_end_header_reading(opj_jp2_t *jp2,
2174 opj_event_mgr_t * p_manager)
2178 assert(p_manager != 00);
2180 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2181 (opj_procedure)opj_jp2_read_header_procedure, p_manager)) {
2184 /* DEVELOPER CORNER, add your custom procedures */
2189 static OPJ_BOOL opj_jp2_default_validation(opj_jp2_t * jp2,
2190 opj_stream_private_t *cio,
2191 opj_event_mgr_t * p_manager
2194 OPJ_BOOL l_is_valid = OPJ_TRUE;
2200 assert(p_manager != 00);
2202 OPJ_UNUSED(p_manager);
2204 /* JPEG2000 codec validation */
2206 /* STATE checking */
2207 /* make sure the state is at 0 */
2208 l_is_valid &= (jp2->jp2_state == JP2_STATE_NONE);
2210 /* make sure not reading a jp2h ???? WEIRD */
2211 l_is_valid &= (jp2->jp2_img_state == JP2_IMG_STATE_NONE);
2213 /* POINTER validation */
2214 /* make sure a j2k codec is present */
2215 l_is_valid &= (jp2->j2k != 00);
2217 /* make sure a procedure list is present */
2218 l_is_valid &= (jp2->m_procedure_list != 00);
2220 /* make sure a validation list is present */
2221 l_is_valid &= (jp2->m_validation_list != 00);
2223 /* PARAMETER VALIDATION */
2224 /* number of components */
2225 l_is_valid &= (jp2->numcl > 0);
2227 l_is_valid &= (jp2->h > 0);
2229 l_is_valid &= (jp2->w > 0);
2231 for (i = 0; i < jp2->numcomps; ++i) {
2232 l_is_valid &= ((jp2->comps[i].bpcc & 0x7FU) <
2233 38U); /* 0 is valid, ignore sign for check */
2237 l_is_valid &= ((jp2->meth > 0) && (jp2->meth < 3));
2239 /* stream validation */
2240 /* back and forth is needed */
2241 l_is_valid &= opj_stream_has_seek(cio);
2246 static OPJ_BOOL opj_jp2_read_header_procedure(opj_jp2_t *jp2,
2247 opj_stream_private_t *stream,
2248 opj_event_mgr_t * p_manager
2252 OPJ_UINT32 l_nb_bytes_read;
2253 const opj_jp2_header_handler_t * l_current_handler;
2254 const opj_jp2_header_handler_t * l_current_handler_misplaced;
2255 OPJ_UINT32 l_last_data_size = OPJ_BOX_SIZE;
2256 OPJ_UINT32 l_current_data_size;
2257 OPJ_BYTE * l_current_data = 00;
2260 assert(stream != 00);
2262 assert(p_manager != 00);
2264 l_current_data = (OPJ_BYTE*)opj_calloc(1, l_last_data_size);
2266 if (l_current_data == 00) {
2267 opj_event_msg(p_manager, EVT_ERROR,
2268 "Not enough memory to handle jpeg2000 file header\n");
2272 while (opj_jp2_read_boxhdr(&box, &l_nb_bytes_read, stream, p_manager)) {
2273 /* is it the codestream box ? */
2274 if (box.type == JP2_JP2C) {
2275 if (jp2->jp2_state & JP2_STATE_HEADER) {
2276 jp2->jp2_state |= JP2_STATE_CODESTREAM;
2277 opj_free(l_current_data);
2280 opj_event_msg(p_manager, EVT_ERROR, "bad placed jpeg codestream\n");
2281 opj_free(l_current_data);
2284 } else if (box.length == 0) {
2285 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
2286 opj_free(l_current_data);
2289 /* testcase 1851.pdf.SIGSEGV.ce9.948 */
2290 else if (box.length < l_nb_bytes_read) {
2291 opj_event_msg(p_manager, EVT_ERROR, "invalid box size %d (%x)\n", box.length,
2293 opj_free(l_current_data);
2297 l_current_handler = opj_jp2_find_handler(box.type);
2298 l_current_handler_misplaced = opj_jp2_img_find_handler(box.type);
2299 l_current_data_size = box.length - l_nb_bytes_read;
2301 if ((l_current_handler != 00) || (l_current_handler_misplaced != 00)) {
2302 if (l_current_handler == 00) {
2303 opj_event_msg(p_manager, EVT_WARNING,
2304 "Found a misplaced '%c%c%c%c' box outside jp2h box\n",
2305 (OPJ_BYTE)(box.type >> 24), (OPJ_BYTE)(box.type >> 16),
2306 (OPJ_BYTE)(box.type >> 8), (OPJ_BYTE)(box.type >> 0));
2307 if (jp2->jp2_state & JP2_STATE_HEADER) {
2308 /* read anyway, we already have jp2h */
2309 l_current_handler = l_current_handler_misplaced;
2311 opj_event_msg(p_manager, EVT_WARNING,
2312 "JPEG2000 Header box not read yet, '%c%c%c%c' box will be ignored\n",
2313 (OPJ_BYTE)(box.type >> 24), (OPJ_BYTE)(box.type >> 16),
2314 (OPJ_BYTE)(box.type >> 8), (OPJ_BYTE)(box.type >> 0));
2315 jp2->jp2_state |= JP2_STATE_UNKNOWN;
2316 if (opj_stream_skip(stream, l_current_data_size,
2317 p_manager) != l_current_data_size) {
2318 opj_event_msg(p_manager, EVT_ERROR,
2319 "Problem with skipping JPEG2000 box, stream error\n");
2320 opj_free(l_current_data);
2326 if ((OPJ_OFF_T)l_current_data_size > opj_stream_get_number_byte_left(stream)) {
2327 /* do not even try to malloc if we can't read */
2328 opj_event_msg(p_manager, EVT_ERROR,
2329 "Invalid box size %d for box '%c%c%c%c'. Need %d bytes, %d bytes remaining \n",
2330 box.length, (OPJ_BYTE)(box.type >> 24), (OPJ_BYTE)(box.type >> 16),
2331 (OPJ_BYTE)(box.type >> 8), (OPJ_BYTE)(box.type >> 0), l_current_data_size,
2332 (OPJ_UINT32)opj_stream_get_number_byte_left(stream));
2333 opj_free(l_current_data);
2336 if (l_current_data_size > l_last_data_size) {
2337 OPJ_BYTE* new_current_data = (OPJ_BYTE*)opj_realloc(l_current_data,
2338 l_current_data_size);
2339 if (!new_current_data) {
2340 opj_free(l_current_data);
2341 opj_event_msg(p_manager, EVT_ERROR,
2342 "Not enough memory to handle jpeg2000 box\n");
2345 l_current_data = new_current_data;
2346 l_last_data_size = l_current_data_size;
2349 l_nb_bytes_read = (OPJ_UINT32)opj_stream_read_data(stream, l_current_data,
2350 l_current_data_size, p_manager);
2351 if (l_nb_bytes_read != l_current_data_size) {
2352 opj_event_msg(p_manager, EVT_ERROR,
2353 "Problem with reading JPEG2000 box, stream error\n");
2354 opj_free(l_current_data);
2358 if (! l_current_handler->handler(jp2, l_current_data, l_current_data_size,
2360 opj_free(l_current_data);
2364 if (!(jp2->jp2_state & JP2_STATE_SIGNATURE)) {
2365 opj_event_msg(p_manager, EVT_ERROR,
2366 "Malformed JP2 file format: first box must be JPEG 2000 signature box\n");
2367 opj_free(l_current_data);
2370 if (!(jp2->jp2_state & JP2_STATE_FILE_TYPE)) {
2371 opj_event_msg(p_manager, EVT_ERROR,
2372 "Malformed JP2 file format: second box must be file type box\n");
2373 opj_free(l_current_data);
2376 jp2->jp2_state |= JP2_STATE_UNKNOWN;
2377 if (opj_stream_skip(stream, l_current_data_size,
2378 p_manager) != l_current_data_size) {
2379 if (jp2->jp2_state & JP2_STATE_CODESTREAM) {
2380 /* If we already read the codestream, do not error out */
2381 /* Needed for data/input/nonregression/issue254.jp2 */
2382 opj_event_msg(p_manager, EVT_WARNING,
2383 "Problem with skipping JPEG2000 box, stream error\n");
2384 opj_free(l_current_data);
2387 opj_event_msg(p_manager, EVT_ERROR,
2388 "Problem with skipping JPEG2000 box, stream error\n");
2389 opj_free(l_current_data);
2396 opj_free(l_current_data);
2402 * Executes the given procedures on the given codec.
2404 * @param p_procedure_list the list of procedures to execute
2405 * @param jp2 the jpeg2000 file codec to execute the procedures on.
2406 * @param stream the stream to execute the procedures on.
2407 * @param p_manager the user manager.
2409 * @return true if all the procedures were successfully executed.
2411 static OPJ_BOOL opj_jp2_exec(opj_jp2_t * jp2,
2412 opj_procedure_list_t * p_procedure_list,
2413 opj_stream_private_t *stream,
2414 opj_event_mgr_t * p_manager
2418 OPJ_BOOL(** l_procedure)(opj_jp2_t * jp2, opj_stream_private_t *,
2419 opj_event_mgr_t *) = 00;
2420 OPJ_BOOL l_result = OPJ_TRUE;
2421 OPJ_UINT32 l_nb_proc, i;
2424 assert(p_procedure_list != 00);
2426 assert(stream != 00);
2427 assert(p_manager != 00);
2429 l_nb_proc = opj_procedure_list_get_nb_procedures(p_procedure_list);
2430 l_procedure = (OPJ_BOOL(**)(opj_jp2_t * jp2, opj_stream_private_t *,
2431 opj_event_mgr_t *)) opj_procedure_list_get_first_procedure(p_procedure_list);
2433 for (i = 0; i < l_nb_proc; ++i) {
2434 l_result = l_result && (*l_procedure)(jp2, stream, p_manager);
2438 /* and clear the procedure list at the end. */
2439 opj_procedure_list_clear(p_procedure_list);
2443 OPJ_BOOL opj_jp2_start_compress(opj_jp2_t *jp2,
2444 opj_stream_private_t *stream,
2445 opj_image_t * p_image,
2446 opj_event_mgr_t * p_manager
2451 assert(stream != 00);
2452 assert(p_manager != 00);
2454 /* customization of the validation */
2455 if (! opj_jp2_setup_encoding_validation(jp2, p_manager)) {
2459 /* validation of the parameters codec */
2460 if (! opj_jp2_exec(jp2, jp2->m_validation_list, stream, p_manager)) {
2464 /* customization of the encoding */
2465 if (! opj_jp2_setup_header_writing(jp2, p_manager)) {
2470 if (! opj_jp2_exec(jp2, jp2->m_procedure_list, stream, p_manager)) {
2474 return opj_j2k_start_compress(jp2->j2k, stream, p_image, p_manager);
2477 static const opj_jp2_header_handler_t * opj_jp2_find_handler(OPJ_UINT32 p_id)
2479 OPJ_UINT32 i, l_handler_size = sizeof(jp2_header) / sizeof(
2480 opj_jp2_header_handler_t);
2482 for (i = 0; i < l_handler_size; ++i) {
2483 if (jp2_header[i].id == p_id) {
2484 return &jp2_header[i];
2491 * Finds the image execution function related to the given box id.
2493 * @param p_id the id of the handler to fetch.
2495 * @return the given handler or 00 if it could not be found.
2497 static const opj_jp2_header_handler_t * opj_jp2_img_find_handler(
2500 OPJ_UINT32 i, l_handler_size = sizeof(jp2_img_header) / sizeof(
2501 opj_jp2_header_handler_t);
2502 for (i = 0; i < l_handler_size; ++i) {
2503 if (jp2_img_header[i].id == p_id) {
2504 return &jp2_img_header[i];
2512 * Reads a jpeg2000 file signature box.
2514 * @param p_header_data the data contained in the signature box.
2515 * @param jp2 the jpeg2000 file codec.
2516 * @param p_header_size the size of the data contained in the signature box.
2517 * @param p_manager the user event manager.
2519 * @return true if the file signature box is valid.
2521 static OPJ_BOOL opj_jp2_read_jp(opj_jp2_t *jp2,
2522 OPJ_BYTE * p_header_data,
2523 OPJ_UINT32 p_header_size,
2524 opj_event_mgr_t * p_manager
2528 OPJ_UINT32 l_magic_number;
2531 assert(p_header_data != 00);
2533 assert(p_manager != 00);
2535 if (jp2->jp2_state != JP2_STATE_NONE) {
2536 opj_event_msg(p_manager, EVT_ERROR,
2537 "The signature box must be the first box in the file.\n");
2541 /* assure length of data is correct (4 -> magic number) */
2542 if (p_header_size != 4) {
2543 opj_event_msg(p_manager, EVT_ERROR, "Error with JP signature Box size\n");
2547 /* rearrange data */
2548 opj_read_bytes(p_header_data, &l_magic_number, 4);
2549 if (l_magic_number != 0x0d0a870a) {
2550 opj_event_msg(p_manager, EVT_ERROR,
2551 "Error with JP Signature : bad magic number\n");
2555 jp2->jp2_state |= JP2_STATE_SIGNATURE;
2561 * Reads a a FTYP box - File type box
2563 * @param p_header_data the data contained in the FTYP box.
2564 * @param jp2 the jpeg2000 file codec.
2565 * @param p_header_size the size of the data contained in the FTYP box.
2566 * @param p_manager the user event manager.
2568 * @return true if the FTYP box is valid.
2570 static OPJ_BOOL opj_jp2_read_ftyp(opj_jp2_t *jp2,
2571 OPJ_BYTE * p_header_data,
2572 OPJ_UINT32 p_header_size,
2573 opj_event_mgr_t * p_manager
2576 OPJ_UINT32 i, l_remaining_bytes;
2579 assert(p_header_data != 00);
2581 assert(p_manager != 00);
2583 if (jp2->jp2_state != JP2_STATE_SIGNATURE) {
2584 opj_event_msg(p_manager, EVT_ERROR,
2585 "The ftyp box must be the second box in the file.\n");
2589 /* assure length of data is correct */
2590 if (p_header_size < 8) {
2591 opj_event_msg(p_manager, EVT_ERROR, "Error with FTYP signature Box size\n");
2595 opj_read_bytes(p_header_data, &jp2->brand, 4); /* BR */
2598 opj_read_bytes(p_header_data, &jp2->minversion, 4); /* MinV */
2601 l_remaining_bytes = p_header_size - 8;
2603 /* the number of remaining bytes should be a multiple of 4 */
2604 if ((l_remaining_bytes & 0x3) != 0) {
2605 opj_event_msg(p_manager, EVT_ERROR, "Error with FTYP signature Box size\n");
2610 jp2->numcl = l_remaining_bytes >> 2;
2612 jp2->cl = (OPJ_UINT32 *) opj_calloc(jp2->numcl, sizeof(OPJ_UINT32));
2613 if (jp2->cl == 00) {
2614 opj_event_msg(p_manager, EVT_ERROR, "Not enough memory with FTYP Box\n");
2619 for (i = 0; i < jp2->numcl; ++i) {
2620 opj_read_bytes(p_header_data, &jp2->cl[i], 4); /* CLi */
2624 jp2->jp2_state |= JP2_STATE_FILE_TYPE;
2629 static OPJ_BOOL opj_jp2_skip_jp2c(opj_jp2_t *jp2,
2630 opj_stream_private_t *stream,
2631 opj_event_mgr_t * p_manager)
2635 assert(stream != 00);
2636 assert(p_manager != 00);
2638 jp2->j2k_codestream_offset = opj_stream_tell(stream);
2640 if (opj_stream_skip(stream, 8, p_manager) != 8) {
2647 static OPJ_BOOL opj_jpip_skip_iptr(opj_jp2_t *jp2,
2648 opj_stream_private_t *stream,
2649 opj_event_mgr_t * p_manager)
2653 assert(stream != 00);
2654 assert(p_manager != 00);
2656 jp2->jpip_iptr_offset = opj_stream_tell(stream);
2658 if (opj_stream_skip(stream, 24, p_manager) != 24) {
2666 * Reads the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box).
2668 * @param p_header_data the data contained in the file header box.
2669 * @param jp2 the jpeg2000 file codec.
2670 * @param p_header_size the size of the data contained in the file header box.
2671 * @param p_manager the user event manager.
2673 * @return true if the JP2 Header box was successfully recognized.
2675 static OPJ_BOOL opj_jp2_read_jp2h(opj_jp2_t *jp2,
2676 OPJ_BYTE *p_header_data,
2677 OPJ_UINT32 p_header_size,
2678 opj_event_mgr_t * p_manager
2681 OPJ_UINT32 l_box_size = 0, l_current_data_size = 0;
2683 const opj_jp2_header_handler_t * l_current_handler;
2684 OPJ_BOOL l_has_ihdr = 0;
2687 assert(p_header_data != 00);
2689 assert(p_manager != 00);
2691 /* make sure the box is well placed */
2692 if ((jp2->jp2_state & JP2_STATE_FILE_TYPE) != JP2_STATE_FILE_TYPE) {
2693 opj_event_msg(p_manager, EVT_ERROR,
2694 "The box must be the first box in the file.\n");
2698 jp2->jp2_img_state = JP2_IMG_STATE_NONE;
2700 /* iterate while remaining data */
2701 while (p_header_size > 0) {
2703 if (! opj_jp2_read_boxhdr_char(&box, p_header_data, &l_box_size, p_header_size,
2705 opj_event_msg(p_manager, EVT_ERROR,
2706 "Stream error while reading JP2 Header box\n");
2710 if (box.length > p_header_size) {
2711 opj_event_msg(p_manager, EVT_ERROR,
2712 "Stream error while reading JP2 Header box: box length is inconsistent.\n");
2716 l_current_handler = opj_jp2_img_find_handler(box.type);
2717 l_current_data_size = box.length - l_box_size;
2718 p_header_data += l_box_size;
2720 if (l_current_handler != 00) {
2721 if (! l_current_handler->handler(jp2, p_header_data, l_current_data_size,
2726 jp2->jp2_img_state |= JP2_IMG_STATE_UNKNOWN;
2729 if (box.type == JP2_IHDR) {
2733 p_header_data += l_current_data_size;
2734 p_header_size -= box.length;
2737 if (l_has_ihdr == 0) {
2738 opj_event_msg(p_manager, EVT_ERROR,
2739 "Stream error while reading JP2 Header box: no 'ihdr' box.\n");
2743 jp2->jp2_state |= JP2_STATE_HEADER;
2749 static OPJ_BOOL opj_jp2_read_boxhdr_char(opj_jp2_box_t *box,
2751 OPJ_UINT32 * p_number_bytes_read,
2752 OPJ_UINT32 p_box_max_size,
2753 opj_event_mgr_t * p_manager
2759 assert(p_data != 00);
2761 assert(p_number_bytes_read != 00);
2762 assert(p_manager != 00);
2764 if (p_box_max_size < 8) {
2765 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of less than 8 bytes\n");
2769 /* process read data */
2770 opj_read_bytes(p_data, &l_value, 4);
2772 box->length = (OPJ_UINT32)(l_value);
2774 opj_read_bytes(p_data, &l_value, 4);
2776 box->type = (OPJ_UINT32)(l_value);
2778 *p_number_bytes_read = 8;
2780 /* do we have a "special very large box ?" */
2781 /* read then the XLBox */
2782 if (box->length == 1) {
2783 OPJ_UINT32 l_xl_part_size;
2785 if (p_box_max_size < 16) {
2786 opj_event_msg(p_manager, EVT_ERROR,
2787 "Cannot handle XL box of less than 16 bytes\n");
2791 opj_read_bytes(p_data, &l_xl_part_size, 4);
2793 *p_number_bytes_read += 4;
2795 if (l_xl_part_size != 0) {
2796 opj_event_msg(p_manager, EVT_ERROR,
2797 "Cannot handle box sizes higher than 2^32\n");
2801 opj_read_bytes(p_data, &l_value, 4);
2802 *p_number_bytes_read += 4;
2803 box->length = (OPJ_UINT32)(l_value);
2805 if (box->length == 0) {
2806 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
2809 } else if (box->length == 0) {
2810 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
2813 if (box->length < *p_number_bytes_read) {
2814 opj_event_msg(p_manager, EVT_ERROR, "Box length is inconsistent.\n");
2820 OPJ_BOOL opj_jp2_read_header(opj_stream_private_t *p_stream,
2822 opj_image_t ** p_image,
2823 opj_event_mgr_t * p_manager
2828 assert(p_stream != 00);
2829 assert(p_manager != 00);
2831 /* customization of the validation */
2832 if (! opj_jp2_setup_decoding_validation(jp2, p_manager)) {
2836 /* customization of the encoding */
2837 if (! opj_jp2_setup_header_reading(jp2, p_manager)) {
2841 /* validation of the parameters codec */
2842 if (! opj_jp2_exec(jp2, jp2->m_validation_list, p_stream, p_manager)) {
2847 if (! opj_jp2_exec(jp2, jp2->m_procedure_list, p_stream, p_manager)) {
2850 if (jp2->has_jp2h == 0) {
2851 opj_event_msg(p_manager, EVT_ERROR, "JP2H box missing. Required.\n");
2854 if (jp2->has_ihdr == 0) {
2855 opj_event_msg(p_manager, EVT_ERROR, "IHDR box_missing. Required.\n");
2859 return opj_j2k_read_header(p_stream,
2865 static OPJ_BOOL opj_jp2_setup_encoding_validation(opj_jp2_t *jp2,
2866 opj_event_mgr_t * p_manager)
2870 assert(p_manager != 00);
2872 if (! opj_procedure_list_add_procedure(jp2->m_validation_list,
2873 (opj_procedure)opj_jp2_default_validation, p_manager)) {
2876 /* DEVELOPER CORNER, add your custom validation procedure */
2881 static OPJ_BOOL opj_jp2_setup_decoding_validation(opj_jp2_t *jp2,
2882 opj_event_mgr_t * p_manager)
2886 assert(p_manager != 00);
2889 OPJ_UNUSED(p_manager);
2891 /* DEVELOPER CORNER, add your custom validation procedure */
2896 static OPJ_BOOL opj_jp2_setup_header_writing(opj_jp2_t *jp2,
2897 opj_event_mgr_t * p_manager)
2901 assert(p_manager != 00);
2903 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2904 (opj_procedure)opj_jp2_write_jp, p_manager)) {
2907 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2908 (opj_procedure)opj_jp2_write_ftyp, p_manager)) {
2911 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2912 (opj_procedure)opj_jp2_write_jp2h, p_manager)) {
2916 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2917 (opj_procedure)opj_jpip_skip_iptr, p_manager)) {
2921 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2922 (opj_procedure)opj_jp2_skip_jp2c, p_manager)) {
2926 /* DEVELOPER CORNER, insert your custom procedures */
2931 static OPJ_BOOL opj_jp2_setup_header_reading(opj_jp2_t *jp2,
2932 opj_event_mgr_t * p_manager)
2936 assert(p_manager != 00);
2938 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2939 (opj_procedure)opj_jp2_read_header_procedure, p_manager)) {
2943 /* DEVELOPER CORNER, add your custom procedures */
2948 OPJ_BOOL opj_jp2_read_tile_header(opj_jp2_t * p_jp2,
2949 OPJ_UINT32 * p_tile_index,
2950 OPJ_UINT32 * p_data_size,
2951 OPJ_INT32 * p_tile_x0,
2952 OPJ_INT32 * p_tile_y0,
2953 OPJ_INT32 * p_tile_x1,
2954 OPJ_INT32 * p_tile_y1,
2955 OPJ_UINT32 * p_nb_comps,
2957 opj_stream_private_t *p_stream,
2958 opj_event_mgr_t * p_manager
2961 return opj_j2k_read_tile_header(p_jp2->j2k,
2964 p_tile_x0, p_tile_y0,
2965 p_tile_x1, p_tile_y1,
2972 OPJ_BOOL opj_jp2_write_tile(opj_jp2_t *p_jp2,
2973 OPJ_UINT32 p_tile_index,
2975 OPJ_UINT32 p_data_size,
2976 opj_stream_private_t *p_stream,
2977 opj_event_mgr_t * p_manager
2981 return opj_j2k_write_tile(p_jp2->j2k, p_tile_index, p_data, p_data_size,
2982 p_stream, p_manager);
2985 OPJ_BOOL opj_jp2_decode_tile(opj_jp2_t * p_jp2,
2986 OPJ_UINT32 p_tile_index,
2988 OPJ_UINT32 p_data_size,
2989 opj_stream_private_t *p_stream,
2990 opj_event_mgr_t * p_manager
2993 return opj_j2k_decode_tile(p_jp2->j2k, p_tile_index, p_data, p_data_size,
2994 p_stream, p_manager);
2997 void opj_jp2_destroy(opj_jp2_t *jp2)
3000 /* destroy the J2K codec */
3001 opj_j2k_destroy(jp2->j2k);
3005 opj_free(jp2->comps);
3014 if (jp2->color.icc_profile_buf) {
3015 opj_free(jp2->color.icc_profile_buf);
3016 jp2->color.icc_profile_buf = 00;
3019 if (jp2->color.jp2_cdef) {
3020 if (jp2->color.jp2_cdef->info) {
3021 opj_free(jp2->color.jp2_cdef->info);
3022 jp2->color.jp2_cdef->info = NULL;
3025 opj_free(jp2->color.jp2_cdef);
3026 jp2->color.jp2_cdef = 00;
3029 if (jp2->color.jp2_pclr) {
3030 if (jp2->color.jp2_pclr->cmap) {
3031 opj_free(jp2->color.jp2_pclr->cmap);
3032 jp2->color.jp2_pclr->cmap = NULL;
3034 if (jp2->color.jp2_pclr->channel_sign) {
3035 opj_free(jp2->color.jp2_pclr->channel_sign);
3036 jp2->color.jp2_pclr->channel_sign = NULL;
3038 if (jp2->color.jp2_pclr->channel_size) {
3039 opj_free(jp2->color.jp2_pclr->channel_size);
3040 jp2->color.jp2_pclr->channel_size = NULL;
3042 if (jp2->color.jp2_pclr->entries) {
3043 opj_free(jp2->color.jp2_pclr->entries);
3044 jp2->color.jp2_pclr->entries = NULL;
3047 opj_free(jp2->color.jp2_pclr);
3048 jp2->color.jp2_pclr = 00;
3051 if (jp2->m_validation_list) {
3052 opj_procedure_list_destroy(jp2->m_validation_list);
3053 jp2->m_validation_list = 00;
3056 if (jp2->m_procedure_list) {
3057 opj_procedure_list_destroy(jp2->m_procedure_list);
3058 jp2->m_procedure_list = 00;
3065 OPJ_BOOL opj_jp2_set_decode_area(opj_jp2_t *p_jp2,
3066 opj_image_t* p_image,
3067 OPJ_INT32 p_start_x, OPJ_INT32 p_start_y,
3068 OPJ_INT32 p_end_x, OPJ_INT32 p_end_y,
3069 opj_event_mgr_t * p_manager
3072 return opj_j2k_set_decode_area(p_jp2->j2k, p_image, p_start_x, p_start_y,
3073 p_end_x, p_end_y, p_manager);
3076 OPJ_BOOL opj_jp2_get_tile(opj_jp2_t *p_jp2,
3077 opj_stream_private_t *p_stream,
3078 opj_image_t* p_image,
3079 opj_event_mgr_t * p_manager,
3080 OPJ_UINT32 tile_index
3087 opj_event_msg(p_manager, EVT_WARNING,
3088 "JP2 box which are after the codestream will not be read by this function.\n");
3090 if (! opj_j2k_get_tile(p_jp2->j2k, p_stream, p_image, p_manager, tile_index)) {
3091 opj_event_msg(p_manager, EVT_ERROR,
3092 "Failed to decode the codestream in the JP2 file\n");
3096 if (!opj_jp2_check_color(p_image, &(p_jp2->color), p_manager)) {
3100 /* Set Image Color Space */
3101 if (p_jp2->enumcs == 16) {
3102 p_image->color_space = OPJ_CLRSPC_SRGB;
3103 } else if (p_jp2->enumcs == 17) {
3104 p_image->color_space = OPJ_CLRSPC_GRAY;
3105 } else if (p_jp2->enumcs == 18) {
3106 p_image->color_space = OPJ_CLRSPC_SYCC;
3107 } else if (p_jp2->enumcs == 24) {
3108 p_image->color_space = OPJ_CLRSPC_EYCC;
3109 } else if (p_jp2->enumcs == 12) {
3110 p_image->color_space = OPJ_CLRSPC_CMYK;
3112 p_image->color_space = OPJ_CLRSPC_UNKNOWN;
3115 if (p_jp2->color.jp2_pclr) {
3116 /* Part 1, I.5.3.4: Either both or none : */
3117 if (!p_jp2->color.jp2_pclr->cmap) {
3118 opj_jp2_free_pclr(&(p_jp2->color));
3120 if (!opj_jp2_apply_pclr(p_image, &(p_jp2->color), p_manager)) {
3126 /* Apply the color space if needed */
3127 if (p_jp2->color.jp2_cdef) {
3128 opj_jp2_apply_cdef(p_image, &(p_jp2->color), p_manager);
3131 if (p_jp2->color.icc_profile_buf) {
3132 p_image->icc_profile_buf = p_jp2->color.icc_profile_buf;
3133 p_image->icc_profile_len = p_jp2->color.icc_profile_len;
3134 p_jp2->color.icc_profile_buf = NULL;
3140 /* ----------------------------------------------------------------------- */
3141 /* JP2 encoder interface */
3142 /* ----------------------------------------------------------------------- */
3144 opj_jp2_t* opj_jp2_create(OPJ_BOOL p_is_decoder)
3146 opj_jp2_t *jp2 = (opj_jp2_t*)opj_calloc(1, sizeof(opj_jp2_t));
3149 /* create the J2K codec */
3150 if (! p_is_decoder) {
3151 jp2->j2k = opj_j2k_create_compress();
3153 jp2->j2k = opj_j2k_create_decompress();
3156 if (jp2->j2k == 00) {
3157 opj_jp2_destroy(jp2);
3161 /* Color structure */
3162 jp2->color.icc_profile_buf = NULL;
3163 jp2->color.icc_profile_len = 0;
3164 jp2->color.jp2_cdef = NULL;
3165 jp2->color.jp2_pclr = NULL;
3166 jp2->color.jp2_has_colr = 0;
3168 /* validation list creation */
3169 jp2->m_validation_list = opj_procedure_list_create();
3170 if (! jp2->m_validation_list) {
3171 opj_jp2_destroy(jp2);
3175 /* execution list creation */
3176 jp2->m_procedure_list = opj_procedure_list_create();
3177 if (! jp2->m_procedure_list) {
3178 opj_jp2_destroy(jp2);
3186 void jp2_dump(opj_jp2_t* p_jp2, OPJ_INT32 flag, FILE* out_stream)
3189 assert(p_jp2 != 00);
3191 j2k_dump(p_jp2->j2k,
3196 opj_codestream_index_t* jp2_get_cstr_index(opj_jp2_t* p_jp2)
3198 return j2k_get_cstr_index(p_jp2->j2k);
3201 opj_codestream_info_v2_t* jp2_get_cstr_info(opj_jp2_t* p_jp2)
3203 return j2k_get_cstr_info(p_jp2->j2k);
3206 OPJ_BOOL opj_jp2_set_decoded_resolution_factor(opj_jp2_t *p_jp2,
3207 OPJ_UINT32 res_factor,
3208 opj_event_mgr_t * p_manager)
3210 return opj_j2k_set_decoded_resolution_factor(p_jp2->j2k, res_factor, p_manager);
3216 static OPJ_BOOL opj_jpip_write_iptr(opj_jp2_t *jp2,
3217 opj_stream_private_t *cio,
3218 opj_event_mgr_t * p_manager)
3220 OPJ_OFF_T j2k_codestream_exit;
3221 OPJ_BYTE l_data_header [24];
3226 assert(p_manager != 00);
3227 assert(opj_stream_has_seek(cio));
3229 j2k_codestream_exit = opj_stream_tell(cio);
3230 opj_write_bytes(l_data_header, 24, 4); /* size of iptr */
3231 opj_write_bytes(l_data_header + 4, JPIP_IPTR,
3234 opj_write_bytes(l_data_header + 4 + 4, 0, 8); /* offset */
3235 opj_write_bytes(l_data_header + 8 + 8, 0, 8); /* length */
3237 opj_write_double(l_data_header + 4 + 4, 0); /* offset */
3238 opj_write_double(l_data_header + 8 + 8, 0); /* length */
3241 if (! opj_stream_seek(cio, jp2->jpip_iptr_offset, p_manager)) {
3242 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3246 if (opj_stream_write_data(cio, l_data_header, 24, p_manager) != 24) {
3247 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3251 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
3252 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3259 static OPJ_BOOL opj_jpip_write_fidx(opj_jp2_t *jp2,
3260 opj_stream_private_t *cio,
3261 opj_event_mgr_t * p_manager)
3263 OPJ_OFF_T j2k_codestream_exit;
3264 OPJ_BYTE l_data_header [24];
3271 assert(p_manager != 00);
3272 assert(opj_stream_has_seek(cio));
3274 opj_write_bytes(l_data_header, 24, 4); /* size of iptr */
3275 opj_write_bytes(l_data_header + 4, JPIP_FIDX,
3277 opj_write_double(l_data_header + 4 + 4, 0); /* offset */
3278 opj_write_double(l_data_header + 8 + 8, 0); /* length */
3280 if (opj_stream_write_data(cio, l_data_header, 24, p_manager) != 24) {
3281 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3285 j2k_codestream_exit = opj_stream_tell(cio);
3286 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
3287 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3294 static OPJ_BOOL opj_jpip_write_cidx(opj_jp2_t *jp2,
3295 opj_stream_private_t *cio,
3296 opj_event_mgr_t * p_manager)
3298 OPJ_OFF_T j2k_codestream_exit;
3299 OPJ_BYTE l_data_header [24];
3306 assert(p_manager != 00);
3307 assert(opj_stream_has_seek(cio));
3309 j2k_codestream_exit = opj_stream_tell(cio);
3310 opj_write_bytes(l_data_header, 24, 4); /* size of iptr */
3311 opj_write_bytes(l_data_header + 4, JPIP_CIDX,
3314 opj_write_bytes(l_data_header + 4 + 4, 0, 8); /* offset */
3315 opj_write_bytes(l_data_header + 8 + 8, 0, 8); /* length */
3317 opj_write_double(l_data_header + 4 + 4, 0); /* offset */
3318 opj_write_double(l_data_header + 8 + 8, 0); /* length */
3321 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
3322 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3326 if (opj_stream_write_data(cio, l_data_header, 24, p_manager) != 24) {
3327 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3331 j2k_codestream_exit = opj_stream_tell(cio);
3332 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
3333 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3341 static void write_prxy(int offset_jp2c, int length_jp2c, int offset_idx,
3342 int length_idx, opj_stream_private_t *cio,
3343 opj_event_mgr_t * p_manager)
3345 OPJ_BYTE l_data_header [8];
3346 OPJ_OFF_T len, lenp;
3348 lenp = opj_stream_tell(cio);
3349 opj_stream_skip(cio, 4, p_manager); /* L [at the end] */
3350 opj_write_bytes(l_data_header, JPIP_PRXY, 4); /* IPTR */
3351 opj_stream_write_data(cio, l_data_header, 4, p_manager);
3353 opj_write_bytes(l_data_header, offset_jp2c, 8); /* OOFF */
3354 opj_stream_write_data(cio, l_data_header, 8, p_manager);
3355 opj_write_bytes(l_data_header, length_jp2c, 4); /* OBH part 1 */
3356 opj_write_bytes(l_data_header + 4, JP2_JP2C, 4); /* OBH part 2 */
3357 opj_stream_write_data(cio, l_data_header, 8, p_manager);
3359 opj_write_bytes(l_data_header, 1, 1); /* NI */
3360 opj_stream_write_data(cio, l_data_header, 1, p_manager);
3362 opj_write_bytes(l_data_header, offset_idx, 8); /* IOFF */
3363 opj_stream_write_data(cio, l_data_header, 8, p_manager);
3364 opj_write_bytes(l_data_header, length_idx, 4); /* IBH part 1 */
3365 opj_write_bytes(l_data_header + 4, JPIP_CIDX, 4); /* IBH part 2 */
3366 opj_stream_write_data(cio, l_data_header, 8, p_manager);
3368 len = opj_stream_tell(cio) - lenp;
3369 opj_stream_skip(cio, lenp, p_manager);
3370 opj_write_bytes(l_data_header, len, 4); /* L */
3371 opj_stream_write_data(cio, l_data_header, 4, p_manager);
3372 opj_stream_seek(cio, lenp + len, p_manager);
3378 static int write_fidx(int offset_jp2c, int length_jp2c, int offset_idx,
3379 int length_idx, opj_stream_private_t *cio,
3380 opj_event_mgr_t * p_manager)
3382 OPJ_BYTE l_data_header [4];
3383 OPJ_OFF_T len, lenp;
3385 lenp = opj_stream_tell(cio);
3386 opj_stream_skip(cio, 4, p_manager);
3387 opj_write_bytes(l_data_header, JPIP_FIDX, 4); /* FIDX */
3388 opj_stream_write_data(cio, l_data_header, 4, p_manager);
3390 write_prxy(offset_jp2c, length_jp2c, offset_idx, length_idx, cio, p_manager);
3392 len = opj_stream_tell(cio) - lenp;
3393 opj_stream_skip(cio, lenp, p_manager);
3394 opj_write_bytes(l_data_header, len, 4); /* L */
3395 opj_stream_write_data(cio, l_data_header, 4, p_manager);
3396 opj_stream_seek(cio, lenp + len, p_manager);
3401 #endif /* USE_JPIP */