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 *stream,
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.allow_different_bit_depth_sign = (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_BYTE mtyp = cmap[i].mtyp;
962 OPJ_BYTE pcol = cmap[i].pcol;
963 /* See ISO 15444-1 Table I.14 – MTYPi field values */
964 if (mtyp != 0 && mtyp != 1) {
965 opj_event_msg(p_manager, EVT_ERROR,
966 "Invalid value for cmap[%d].mtyp = %d.\n", i,
969 } else if (pcol >= nr_channels) {
970 opj_event_msg(p_manager, EVT_ERROR,
971 "Invalid component/palette index for direct mapping %d.\n", pcol);
973 } else if (pcol_usage[pcol] && mtyp == 1) {
974 opj_event_msg(p_manager, EVT_ERROR, "Component %d is mapped twice.\n", pcol);
976 } else if (mtyp == 0 && pcol != 0) {
977 /* I.5.3.5 PCOL: If the value of the MTYP field for this channel is 0, then
978 * the value of this field shall be 0. */
979 opj_event_msg(p_manager, EVT_ERROR, "Direct use at #%d however pcol=%d.\n", i,
982 } else if (mtyp == 1 && pcol != i) {
983 /* OpenJPEG implementation limitation. See assert(i == pcol); */
984 /* in opj_jp2_apply_pclr() */
985 opj_event_msg(p_manager, EVT_ERROR,
986 "Implementation limitation: for palette mapping, "
987 "pcol[%d] should be equal to %d, but is equal "
988 "to %d.\n", i, i, pcol);
991 pcol_usage[pcol] = OPJ_TRUE;
994 /* verify that all components are targeted at least once */
995 for (i = 0; i < nr_channels; i++) {
996 if (!pcol_usage[i] && cmap[i].mtyp != 0) {
997 opj_event_msg(p_manager, EVT_ERROR, "Component %d doesn't have a mapping.\n",
1002 /* Issue 235/447 weird cmap */
1003 if (1 && is_sane && (image->numcomps == 1U)) {
1004 for (i = 0; i < nr_channels; i++) {
1005 if (!pcol_usage[i]) {
1007 opj_event_msg(p_manager, EVT_WARNING,
1008 "Component mapping seems wrong. Trying to correct.\n");
1014 for (i = 0; i < nr_channels; i++) {
1016 cmap[i].pcol = (OPJ_BYTE) i;
1020 opj_free(pcol_usage);
1030 static OPJ_BOOL opj_jp2_apply_pclr(opj_image_t *image,
1031 opj_jp2_color_t *color,
1032 opj_event_mgr_t * p_manager)
1034 opj_image_comp_t *old_comps, *new_comps;
1035 OPJ_BYTE *channel_size, *channel_sign;
1036 OPJ_UINT32 *entries;
1037 opj_jp2_cmap_comp_t *cmap;
1038 OPJ_INT32 *src, *dst;
1040 OPJ_UINT16 i, nr_channels, cmp, pcol;
1043 channel_size = color->jp2_pclr->channel_size;
1044 channel_sign = color->jp2_pclr->channel_sign;
1045 entries = color->jp2_pclr->entries;
1046 cmap = color->jp2_pclr->cmap;
1047 nr_channels = color->jp2_pclr->nr_channels;
1049 for (i = 0; i < nr_channels; ++i) {
1050 /* Palette mapping: */
1052 if (image->comps[cmp].data == NULL) {
1053 opj_event_msg(p_manager, EVT_ERROR,
1054 "image->comps[%d].data == NULL in opj_jp2_apply_pclr().\n", i);
1059 old_comps = image->comps;
1060 new_comps = (opj_image_comp_t*)
1061 opj_malloc(nr_channels * sizeof(opj_image_comp_t));
1063 opj_event_msg(p_manager, EVT_ERROR,
1064 "Memory allocation failure in opj_jp2_apply_pclr().\n");
1067 for (i = 0; i < nr_channels; ++i) {
1068 pcol = cmap[i].pcol;
1072 if (cmap[i].mtyp == 0) {
1074 new_comps[i] = old_comps[cmp];
1077 new_comps[pcol] = old_comps[cmp];
1080 /* Palette mapping: */
1081 new_comps[i].data = (OPJ_INT32*)
1082 opj_image_data_alloc(sizeof(OPJ_INT32) * old_comps[cmp].w * old_comps[cmp].h);
1083 if (!new_comps[i].data) {
1086 opj_image_data_free(new_comps[i].data);
1088 opj_free(new_comps);
1089 opj_event_msg(p_manager, EVT_ERROR,
1090 "Memory allocation failure in opj_jp2_apply_pclr().\n");
1093 new_comps[i].prec = channel_size[i];
1094 new_comps[i].sgnd = channel_sign[i];
1097 top_k = color->jp2_pclr->nr_entries - 1;
1099 for (i = 0; i < nr_channels; ++i) {
1100 /* Palette mapping: */
1102 pcol = cmap[i].pcol;
1103 src = old_comps[cmp].data;
1104 assert(src); /* verified above */
1105 max = new_comps[pcol].w * new_comps[pcol].h;
1108 if (cmap[i].mtyp == 0) {
1109 dst = new_comps[i].data;
1111 for (j = 0; j < max; ++j) {
1116 dst = new_comps[pcol].data;
1118 for (j = 0; j < max; ++j) {
1120 if ((k = src[j]) < 0) {
1122 } else if (k > top_k) {
1127 dst[j] = (OPJ_INT32)entries[k * nr_channels + pcol];
1132 max = image->numcomps;
1133 for (i = 0; i < max; ++i) {
1134 if (old_comps[i].data) {
1135 opj_image_data_free(old_comps[i].data);
1139 opj_free(old_comps);
1140 image->comps = new_comps;
1141 image->numcomps = nr_channels;
1146 static OPJ_BOOL opj_jp2_read_pclr(opj_jp2_t *jp2,
1147 OPJ_BYTE * p_pclr_header_data,
1148 OPJ_UINT32 p_pclr_header_size,
1149 opj_event_mgr_t * p_manager
1152 opj_jp2_pclr_t *jp2_pclr;
1153 OPJ_BYTE *channel_size, *channel_sign;
1154 OPJ_UINT32 *entries;
1155 OPJ_UINT16 nr_entries, nr_channels;
1158 OPJ_BYTE *orig_header_data = p_pclr_header_data;
1161 assert(p_pclr_header_data != 00);
1163 assert(p_manager != 00);
1164 (void)p_pclr_header_size;
1166 if (jp2->color.jp2_pclr) {
1170 if (p_pclr_header_size < 3) {
1174 opj_read_bytes(p_pclr_header_data, &l_value, 2); /* NE */
1175 p_pclr_header_data += 2;
1176 nr_entries = (OPJ_UINT16) l_value;
1177 if ((nr_entries == 0U) || (nr_entries > 1024U)) {
1178 opj_event_msg(p_manager, EVT_ERROR, "Invalid PCLR box. Reports %d entries\n",
1183 opj_read_bytes(p_pclr_header_data, &l_value, 1); /* NPC */
1184 ++p_pclr_header_data;
1185 nr_channels = (OPJ_UINT16) l_value;
1186 if (nr_channels == 0U) {
1187 opj_event_msg(p_manager, EVT_ERROR,
1188 "Invalid PCLR box. Reports 0 palette columns\n");
1192 if (p_pclr_header_size < 3 + (OPJ_UINT32)nr_channels) {
1196 entries = (OPJ_UINT32*) opj_malloc(sizeof(OPJ_UINT32) * nr_channels *
1201 channel_size = (OPJ_BYTE*) opj_malloc(nr_channels);
1202 if (!channel_size) {
1206 channel_sign = (OPJ_BYTE*) opj_malloc(nr_channels);
1207 if (!channel_sign) {
1209 opj_free(channel_size);
1213 jp2_pclr = (opj_jp2_pclr_t*)opj_malloc(sizeof(opj_jp2_pclr_t));
1216 opj_free(channel_size);
1217 opj_free(channel_sign);
1221 jp2_pclr->channel_sign = channel_sign;
1222 jp2_pclr->channel_size = channel_size;
1223 jp2_pclr->entries = entries;
1224 jp2_pclr->nr_entries = nr_entries;
1225 jp2_pclr->nr_channels = (OPJ_BYTE) l_value;
1226 jp2_pclr->cmap = NULL;
1228 jp2->color.jp2_pclr = jp2_pclr;
1230 for (i = 0; i < nr_channels; ++i) {
1231 opj_read_bytes(p_pclr_header_data, &l_value, 1); /* Bi */
1232 ++p_pclr_header_data;
1234 channel_size[i] = (OPJ_BYTE)((l_value & 0x7f) + 1);
1235 channel_sign[i] = (l_value & 0x80) ? 1 : 0;
1238 for (j = 0; j < nr_entries; ++j) {
1239 for (i = 0; i < nr_channels; ++i) {
1240 OPJ_UINT32 bytes_to_read = (OPJ_UINT32)((channel_size[i] + 7) >> 3);
1242 if (bytes_to_read > sizeof(OPJ_UINT32)) {
1243 bytes_to_read = sizeof(OPJ_UINT32);
1245 if ((ptrdiff_t)p_pclr_header_size < (ptrdiff_t)(p_pclr_header_data -
1246 orig_header_data) + (ptrdiff_t)bytes_to_read) {
1250 opj_read_bytes(p_pclr_header_data, &l_value, bytes_to_read); /* Cji */
1251 p_pclr_header_data += bytes_to_read;
1252 *entries = (OPJ_UINT32) l_value;
1260 static OPJ_BOOL opj_jp2_read_cmap(opj_jp2_t * jp2,
1261 OPJ_BYTE * p_cmap_header_data,
1262 OPJ_UINT32 p_cmap_header_size,
1263 opj_event_mgr_t * p_manager
1266 opj_jp2_cmap_comp_t *cmap;
1267 OPJ_BYTE i, nr_channels;
1272 assert(p_cmap_header_data != 00);
1273 assert(p_manager != 00);
1274 (void)p_cmap_header_size;
1276 /* Need nr_channels: */
1277 if (jp2->color.jp2_pclr == NULL) {
1278 opj_event_msg(p_manager, EVT_ERROR,
1279 "Need to read a PCLR box before the CMAP box.\n");
1283 /* Part 1, I.5.3.5: 'There shall be at most one Component Mapping box
1284 * inside a JP2 Header box' :
1286 if (jp2->color.jp2_pclr->cmap) {
1287 opj_event_msg(p_manager, EVT_ERROR, "Only one CMAP box is allowed.\n");
1291 nr_channels = jp2->color.jp2_pclr->nr_channels;
1292 if (p_cmap_header_size < (OPJ_UINT32)nr_channels * 4) {
1293 opj_event_msg(p_manager, EVT_ERROR, "Insufficient data for CMAP box.\n");
1297 cmap = (opj_jp2_cmap_comp_t*) opj_malloc(nr_channels * sizeof(
1298 opj_jp2_cmap_comp_t));
1304 for (i = 0; i < nr_channels; ++i) {
1305 opj_read_bytes(p_cmap_header_data, &l_value, 2); /* CMP^i */
1306 p_cmap_header_data += 2;
1307 cmap[i].cmp = (OPJ_UINT16) l_value;
1309 opj_read_bytes(p_cmap_header_data, &l_value, 1); /* MTYP^i */
1310 ++p_cmap_header_data;
1311 cmap[i].mtyp = (OPJ_BYTE) l_value;
1313 opj_read_bytes(p_cmap_header_data, &l_value, 1); /* PCOL^i */
1314 ++p_cmap_header_data;
1315 cmap[i].pcol = (OPJ_BYTE) l_value;
1318 jp2->color.jp2_pclr->cmap = cmap;
1323 static void opj_jp2_apply_cdef(opj_image_t *image, opj_jp2_color_t *color,
1324 opj_event_mgr_t *manager)
1326 opj_jp2_cdef_info_t *info;
1327 OPJ_UINT16 i, n, cn, asoc, acn;
1329 info = color->jp2_cdef->info;
1330 n = color->jp2_cdef->n;
1332 for (i = 0; i < n; ++i) {
1333 /* WATCH: acn = asoc - 1 ! */
1334 asoc = info[i].asoc;
1337 if (cn >= image->numcomps) {
1338 opj_event_msg(manager, EVT_WARNING, "opj_jp2_apply_cdef: cn=%d, numcomps=%d\n",
1339 cn, image->numcomps);
1342 if (asoc == 0 || asoc == 65535) {
1343 image->comps[cn].alpha = info[i].typ;
1347 acn = (OPJ_UINT16)(asoc - 1);
1348 if (acn >= image->numcomps) {
1349 opj_event_msg(manager, EVT_WARNING, "opj_jp2_apply_cdef: acn=%d, numcomps=%d\n",
1350 acn, image->numcomps);
1354 /* Swap only if color channel */
1355 if ((cn != acn) && (info[i].typ == 0)) {
1356 opj_image_comp_t saved;
1359 memcpy(&saved, &image->comps[cn], sizeof(opj_image_comp_t));
1360 memcpy(&image->comps[cn], &image->comps[acn], sizeof(opj_image_comp_t));
1361 memcpy(&image->comps[acn], &saved, sizeof(opj_image_comp_t));
1363 /* Swap channels in following channel definitions, don't bother with j <= i that are already processed */
1364 for (j = (OPJ_UINT16)(i + 1U); j < n ; ++j) {
1365 if (info[j].cn == cn) {
1367 } else if (info[j].cn == acn) {
1370 /* asoc is related to color index. Do not update. */
1374 image->comps[cn].alpha = info[i].typ;
1377 if (color->jp2_cdef->info) {
1378 opj_free(color->jp2_cdef->info);
1381 opj_free(color->jp2_cdef);
1382 color->jp2_cdef = NULL;
1384 }/* jp2_apply_cdef() */
1386 static OPJ_BOOL opj_jp2_read_cdef(opj_jp2_t * jp2,
1387 OPJ_BYTE * p_cdef_header_data,
1388 OPJ_UINT32 p_cdef_header_size,
1389 opj_event_mgr_t * p_manager
1392 opj_jp2_cdef_info_t *cdef_info;
1398 assert(p_cdef_header_data != 00);
1399 assert(p_manager != 00);
1400 (void)p_cdef_header_size;
1402 /* Part 1, I.5.3.6: 'The shall be at most one Channel Definition box
1403 * inside a JP2 Header box.'*/
1404 if (jp2->color.jp2_cdef) {
1408 if (p_cdef_header_size < 2) {
1409 opj_event_msg(p_manager, EVT_ERROR, "Insufficient data for CDEF box.\n");
1413 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* N */
1414 p_cdef_header_data += 2;
1416 if ((OPJ_UINT16)l_value == 0) { /* szukw000: FIXME */
1417 opj_event_msg(p_manager, EVT_ERROR,
1418 "Number of channel description is equal to zero in CDEF box.\n");
1422 if (p_cdef_header_size < 2 + (OPJ_UINT32)(OPJ_UINT16)l_value * 6) {
1423 opj_event_msg(p_manager, EVT_ERROR, "Insufficient data for CDEF box.\n");
1427 cdef_info = (opj_jp2_cdef_info_t*) opj_malloc(l_value * sizeof(
1428 opj_jp2_cdef_info_t));
1433 jp2->color.jp2_cdef = (opj_jp2_cdef_t*)opj_malloc(sizeof(opj_jp2_cdef_t));
1434 if (!jp2->color.jp2_cdef) {
1435 opj_free(cdef_info);
1438 jp2->color.jp2_cdef->info = cdef_info;
1439 jp2->color.jp2_cdef->n = (OPJ_UINT16) l_value;
1441 for (i = 0; i < jp2->color.jp2_cdef->n; ++i) {
1442 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Cn^i */
1443 p_cdef_header_data += 2;
1444 cdef_info[i].cn = (OPJ_UINT16) l_value;
1446 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Typ^i */
1447 p_cdef_header_data += 2;
1448 cdef_info[i].typ = (OPJ_UINT16) l_value;
1450 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Asoc^i */
1451 p_cdef_header_data += 2;
1452 cdef_info[i].asoc = (OPJ_UINT16) l_value;
1458 static OPJ_BOOL opj_jp2_read_colr(opj_jp2_t *jp2,
1459 OPJ_BYTE * p_colr_header_data,
1460 OPJ_UINT32 p_colr_header_size,
1461 opj_event_mgr_t * p_manager
1468 assert(p_colr_header_data != 00);
1469 assert(p_manager != 00);
1471 if (p_colr_header_size < 3) {
1472 opj_event_msg(p_manager, EVT_ERROR, "Bad COLR header box (bad size)\n");
1476 /* Part 1, I.5.3.3 : 'A conforming JP2 reader shall ignore all Colour
1477 * Specification boxes after the first.'
1479 if (jp2->color.jp2_has_colr) {
1480 opj_event_msg(p_manager, EVT_INFO,
1481 "A conforming JP2 reader shall ignore all Colour Specification boxes after the first, so we ignore this one.\n");
1482 p_colr_header_data += p_colr_header_size;
1486 opj_read_bytes(p_colr_header_data, &jp2->meth, 1); /* METH */
1487 ++p_colr_header_data;
1489 opj_read_bytes(p_colr_header_data, &jp2->precedence, 1); /* PRECEDENCE */
1490 ++p_colr_header_data;
1492 opj_read_bytes(p_colr_header_data, &jp2->approx, 1); /* APPROX */
1493 ++p_colr_header_data;
1495 if (jp2->meth == 1) {
1496 if (p_colr_header_size < 7) {
1497 opj_event_msg(p_manager, EVT_ERROR, "Bad COLR header box (bad size: %d)\n",
1498 p_colr_header_size);
1501 if ((p_colr_header_size > 7) &&
1502 (jp2->enumcs != 14)) { /* handled below for CIELab) */
1503 /* testcase Altona_Technical_v20_x4.pdf */
1504 opj_event_msg(p_manager, EVT_WARNING, "Bad COLR header box (bad size: %d)\n",
1505 p_colr_header_size);
1508 opj_read_bytes(p_colr_header_data, &jp2->enumcs, 4); /* EnumCS */
1510 p_colr_header_data += 4;
1512 if (jp2->enumcs == 14) { /* CIELab */
1514 OPJ_UINT32 rl, ol, ra, oa, rb, ob, il;
1516 cielab = (OPJ_UINT32*)opj_malloc(9 * sizeof(OPJ_UINT32));
1517 if (cielab == NULL) {
1518 opj_event_msg(p_manager, EVT_ERROR, "Not enough memory for cielab\n");
1521 cielab[0] = 14; /* enumcs */
1523 /* default values */
1524 rl = ra = rb = ol = oa = ob = 0;
1525 il = 0x00443530; /* D50 */
1526 cielab[1] = 0x44454600;/* DEF */
1528 if (p_colr_header_size == 35) {
1529 opj_read_bytes(p_colr_header_data, &rl, 4);
1530 p_colr_header_data += 4;
1531 opj_read_bytes(p_colr_header_data, &ol, 4);
1532 p_colr_header_data += 4;
1533 opj_read_bytes(p_colr_header_data, &ra, 4);
1534 p_colr_header_data += 4;
1535 opj_read_bytes(p_colr_header_data, &oa, 4);
1536 p_colr_header_data += 4;
1537 opj_read_bytes(p_colr_header_data, &rb, 4);
1538 p_colr_header_data += 4;
1539 opj_read_bytes(p_colr_header_data, &ob, 4);
1540 p_colr_header_data += 4;
1541 opj_read_bytes(p_colr_header_data, &il, 4);
1542 p_colr_header_data += 4;
1545 } else if (p_colr_header_size != 7) {
1546 opj_event_msg(p_manager, EVT_WARNING,
1547 "Bad COLR header box (CIELab, bad size: %d)\n", p_colr_header_size);
1557 jp2->color.icc_profile_buf = (OPJ_BYTE*)cielab;
1558 jp2->color.icc_profile_len = 0;
1560 jp2->color.jp2_has_colr = 1;
1561 } else if (jp2->meth == 2) {
1563 OPJ_INT32 it_icc_value = 0;
1564 OPJ_INT32 icc_len = (OPJ_INT32)p_colr_header_size - 3;
1566 jp2->color.icc_profile_len = (OPJ_UINT32)icc_len;
1567 jp2->color.icc_profile_buf = (OPJ_BYTE*) opj_calloc(1, (size_t)icc_len);
1568 if (!jp2->color.icc_profile_buf) {
1569 jp2->color.icc_profile_len = 0;
1573 for (it_icc_value = 0; it_icc_value < icc_len; ++it_icc_value) {
1574 opj_read_bytes(p_colr_header_data, &l_value, 1); /* icc values */
1575 ++p_colr_header_data;
1576 jp2->color.icc_profile_buf[it_icc_value] = (OPJ_BYTE) l_value;
1579 jp2->color.jp2_has_colr = 1;
1580 } else if (jp2->meth > 2) {
1581 /* ISO/IEC 15444-1:2004 (E), Table I.9 Legal METH values:
1582 conforming JP2 reader shall ignore the entire Colour Specification box.*/
1583 opj_event_msg(p_manager, EVT_INFO,
1584 "COLR BOX meth value is not a regular value (%d), "
1585 "so we will ignore the entire Colour Specification box. \n", jp2->meth);
1587 if (jp2->color.jp2_has_colr) {
1588 jp2->j2k->enumcs = jp2->enumcs;
1593 OPJ_BOOL opj_jp2_decode(opj_jp2_t *jp2,
1594 opj_stream_private_t *p_stream,
1595 opj_image_t* p_image,
1596 opj_event_mgr_t * p_manager)
1603 if (! opj_j2k_decode(jp2->j2k, p_stream, p_image, p_manager)) {
1604 opj_event_msg(p_manager, EVT_ERROR,
1605 "Failed to decode the codestream in the JP2 file\n");
1609 if (jp2->j2k->m_specific_param.m_decoder.m_numcomps_to_decode) {
1610 /* Bypass all JP2 component transforms */
1614 if (!jp2->ignore_pclr_cmap_cdef) {
1615 if (!opj_jp2_check_color(p_image, &(jp2->color), p_manager)) {
1619 /* Set Image Color Space */
1620 if (jp2->enumcs == 16) {
1621 p_image->color_space = OPJ_CLRSPC_SRGB;
1622 } else if (jp2->enumcs == 17) {
1623 p_image->color_space = OPJ_CLRSPC_GRAY;
1624 } else if (jp2->enumcs == 18) {
1625 p_image->color_space = OPJ_CLRSPC_SYCC;
1626 } else if (jp2->enumcs == 24) {
1627 p_image->color_space = OPJ_CLRSPC_EYCC;
1628 } else if (jp2->enumcs == 12) {
1629 p_image->color_space = OPJ_CLRSPC_CMYK;
1631 p_image->color_space = OPJ_CLRSPC_UNKNOWN;
1634 if (jp2->color.jp2_pclr) {
1635 /* Part 1, I.5.3.4: Either both or none : */
1636 if (!jp2->color.jp2_pclr->cmap) {
1637 opj_jp2_free_pclr(&(jp2->color));
1639 if (!opj_jp2_apply_pclr(p_image, &(jp2->color), p_manager)) {
1645 /* Apply the color space if needed */
1646 if (jp2->color.jp2_cdef) {
1647 opj_jp2_apply_cdef(p_image, &(jp2->color), p_manager);
1650 if (jp2->color.icc_profile_buf) {
1651 p_image->icc_profile_buf = jp2->color.icc_profile_buf;
1652 p_image->icc_profile_len = jp2->color.icc_profile_len;
1653 jp2->color.icc_profile_buf = NULL;
1660 static OPJ_BOOL opj_jp2_write_jp2h(opj_jp2_t *jp2,
1661 opj_stream_private_t *stream,
1662 opj_event_mgr_t * p_manager
1665 opj_jp2_img_header_writer_handler_t l_writers [4];
1666 opj_jp2_img_header_writer_handler_t * l_current_writer;
1668 OPJ_INT32 i, l_nb_pass;
1669 /* size of data for super box*/
1670 OPJ_UINT32 l_jp2h_size = 8;
1671 OPJ_BOOL l_result = OPJ_TRUE;
1673 /* to store the data of the super box */
1674 OPJ_BYTE l_jp2h_data [8];
1677 assert(stream != 00);
1679 assert(p_manager != 00);
1681 memset(l_writers, 0, sizeof(l_writers));
1683 if (jp2->bpc == 255) {
1685 l_writers[0].handler = opj_jp2_write_ihdr;
1686 l_writers[1].handler = opj_jp2_write_bpcc;
1687 l_writers[2].handler = opj_jp2_write_colr;
1690 l_writers[0].handler = opj_jp2_write_ihdr;
1691 l_writers[1].handler = opj_jp2_write_colr;
1694 if (jp2->color.jp2_cdef != NULL) {
1695 l_writers[l_nb_pass].handler = opj_jp2_write_cdef;
1699 /* write box header */
1700 /* write JP2H type */
1701 opj_write_bytes(l_jp2h_data + 4, JP2_JP2H, 4);
1703 l_current_writer = l_writers;
1704 for (i = 0; i < l_nb_pass; ++i) {
1705 l_current_writer->m_data = l_current_writer->handler(jp2,
1706 &(l_current_writer->m_size));
1707 if (l_current_writer->m_data == 00) {
1708 opj_event_msg(p_manager, EVT_ERROR,
1709 "Not enough memory to hold JP2 Header data\n");
1710 l_result = OPJ_FALSE;
1714 l_jp2h_size += l_current_writer->m_size;
1719 l_current_writer = l_writers;
1720 for (i = 0; i < l_nb_pass; ++i) {
1721 if (l_current_writer->m_data != 00) {
1722 opj_free(l_current_writer->m_data);
1730 /* write super box size */
1731 opj_write_bytes(l_jp2h_data, l_jp2h_size, 4);
1733 /* write super box data on stream */
1734 if (opj_stream_write_data(stream, l_jp2h_data, 8, p_manager) != 8) {
1735 opj_event_msg(p_manager, EVT_ERROR,
1736 "Stream error while writing JP2 Header box\n");
1737 l_result = OPJ_FALSE;
1741 l_current_writer = l_writers;
1742 for (i = 0; i < l_nb_pass; ++i) {
1743 if (opj_stream_write_data(stream, l_current_writer->m_data,
1744 l_current_writer->m_size, p_manager) != l_current_writer->m_size) {
1745 opj_event_msg(p_manager, EVT_ERROR,
1746 "Stream error while writing JP2 Header box\n");
1747 l_result = OPJ_FALSE;
1754 l_current_writer = l_writers;
1757 for (i = 0; i < l_nb_pass; ++i) {
1758 if (l_current_writer->m_data != 00) {
1759 opj_free(l_current_writer->m_data);
1767 static OPJ_BOOL opj_jp2_write_ftyp(opj_jp2_t *jp2,
1768 opj_stream_private_t *cio,
1769 opj_event_mgr_t * p_manager)
1772 OPJ_UINT32 l_ftyp_size;
1773 OPJ_BYTE * l_ftyp_data, * l_current_data_ptr;
1779 assert(p_manager != 00);
1780 l_ftyp_size = 16 + 4 * jp2->numcl;
1782 l_ftyp_data = (OPJ_BYTE *) opj_calloc(1, l_ftyp_size);
1784 if (l_ftyp_data == 00) {
1785 opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to handle ftyp data\n");
1789 l_current_data_ptr = l_ftyp_data;
1791 opj_write_bytes(l_current_data_ptr, l_ftyp_size, 4); /* box size */
1792 l_current_data_ptr += 4;
1794 opj_write_bytes(l_current_data_ptr, JP2_FTYP, 4); /* FTYP */
1795 l_current_data_ptr += 4;
1797 opj_write_bytes(l_current_data_ptr, jp2->brand, 4); /* BR */
1798 l_current_data_ptr += 4;
1800 opj_write_bytes(l_current_data_ptr, jp2->minversion, 4); /* MinV */
1801 l_current_data_ptr += 4;
1803 for (i = 0; i < jp2->numcl; i++) {
1804 opj_write_bytes(l_current_data_ptr, jp2->cl[i], 4); /* CL */
1807 l_result = (opj_stream_write_data(cio, l_ftyp_data, l_ftyp_size,
1808 p_manager) == l_ftyp_size);
1810 opj_event_msg(p_manager, EVT_ERROR,
1811 "Error while writing ftyp data to stream\n");
1814 opj_free(l_ftyp_data);
1819 static OPJ_BOOL opj_jp2_write_jp2c(opj_jp2_t *jp2,
1820 opj_stream_private_t *cio,
1821 opj_event_mgr_t * p_manager)
1823 OPJ_OFF_T j2k_codestream_exit;
1824 OPJ_BYTE l_data_header [8];
1829 assert(p_manager != 00);
1830 assert(opj_stream_has_seek(cio));
1832 j2k_codestream_exit = opj_stream_tell(cio);
1833 opj_write_bytes(l_data_header,
1834 (OPJ_UINT32)(j2k_codestream_exit - jp2->j2k_codestream_offset),
1835 4); /* size of codestream */
1836 opj_write_bytes(l_data_header + 4, JP2_JP2C,
1839 if (! opj_stream_seek(cio, jp2->j2k_codestream_offset, p_manager)) {
1840 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
1844 if (opj_stream_write_data(cio, l_data_header, 8, p_manager) != 8) {
1845 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
1849 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
1850 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
1857 static OPJ_BOOL opj_jp2_write_jp(opj_jp2_t *jp2,
1858 opj_stream_private_t *cio,
1859 opj_event_mgr_t * p_manager)
1861 /* 12 bytes will be read */
1862 OPJ_BYTE l_signature_data [12];
1867 assert(p_manager != 00);
1871 /* write box length */
1872 opj_write_bytes(l_signature_data, 12, 4);
1873 /* writes box type */
1874 opj_write_bytes(l_signature_data + 4, JP2_JP, 4);
1875 /* writes magic number*/
1876 opj_write_bytes(l_signature_data + 8, 0x0d0a870a, 4);
1878 if (opj_stream_write_data(cio, l_signature_data, 12, p_manager) != 12) {
1885 /* ----------------------------------------------------------------------- */
1886 /* JP2 decoder interface */
1887 /* ----------------------------------------------------------------------- */
1889 void opj_jp2_setup_decoder(opj_jp2_t *jp2, opj_dparameters_t *parameters)
1891 /* setup the J2K codec */
1892 opj_j2k_setup_decoder(jp2->j2k, parameters);
1894 /* further JP2 initializations go here */
1895 jp2->color.jp2_has_colr = 0;
1896 jp2->ignore_pclr_cmap_cdef = parameters->flags &
1897 OPJ_DPARAMETERS_IGNORE_PCLR_CMAP_CDEF_FLAG;
1900 OPJ_BOOL opj_jp2_set_threads(opj_jp2_t *jp2, OPJ_UINT32 num_threads)
1902 return opj_j2k_set_threads(jp2->j2k, num_threads);
1905 /* ----------------------------------------------------------------------- */
1906 /* JP2 encoder interface */
1907 /* ----------------------------------------------------------------------- */
1909 OPJ_BOOL opj_jp2_setup_encoder(opj_jp2_t *jp2,
1910 opj_cparameters_t *parameters,
1912 opj_event_mgr_t * p_manager)
1917 OPJ_UINT32 alpha_count;
1918 OPJ_UINT32 color_channels = 0U;
1919 OPJ_UINT32 alpha_channel = 0U;
1922 if (!jp2 || !parameters || !image) {
1926 /* setup the J2K codec */
1927 /* ------------------- */
1929 /* Check if number of components respects standard */
1930 if (image->numcomps < 1 || image->numcomps > 16384) {
1931 opj_event_msg(p_manager, EVT_ERROR,
1932 "Invalid number of components specified while setting up JP2 encoder\n");
1936 if (opj_j2k_setup_encoder(jp2->j2k, parameters, image,
1937 p_manager) == OPJ_FALSE) {
1941 /* setup the JP2 codec */
1942 /* ------------------- */
1946 jp2->brand = JP2_JP2; /* BR */
1947 jp2->minversion = 0; /* MinV */
1949 jp2->cl = (OPJ_UINT32*) opj_malloc(jp2->numcl * sizeof(OPJ_UINT32));
1951 opj_event_msg(p_manager, EVT_ERROR,
1952 "Not enough memory when setup the JP2 encoder\n");
1955 jp2->cl[0] = JP2_JP2; /* CL0 : JP2 */
1957 /* Image Header box */
1959 jp2->numcomps = image->numcomps; /* NC */
1960 jp2->comps = (opj_jp2_comps_t*) opj_malloc(jp2->numcomps * sizeof(
1963 opj_event_msg(p_manager, EVT_ERROR,
1964 "Not enough memory when setup the JP2 encoder\n");
1965 /* Memory of jp2->cl will be freed by opj_jp2_destroy */
1969 jp2->h = image->y1 - image->y0; /* HEIGHT */
1970 jp2->w = image->x1 - image->x0; /* WIDTH */
1972 depth_0 = image->comps[0].prec - 1;
1973 sign = image->comps[0].sgnd;
1974 jp2->bpc = depth_0 + (sign << 7);
1975 for (i = 1; i < image->numcomps; i++) {
1976 OPJ_UINT32 depth = image->comps[i].prec - 1;
1977 sign = image->comps[i].sgnd;
1978 if (depth_0 != depth) {
1982 jp2->C = 7; /* C : Always 7 */
1983 jp2->UnkC = 0; /* UnkC, colorspace specified in colr box */
1984 jp2->IPR = 0; /* IPR, no intellectual property */
1986 /* BitsPerComponent box */
1987 for (i = 0; i < image->numcomps; i++) {
1988 jp2->comps[i].bpcc = image->comps[i].prec - 1 + (image->comps[i].sgnd << 7);
1991 /* Colour Specification box */
1992 if (image->icc_profile_len) {
1997 if (image->color_space == 1) {
1998 jp2->enumcs = 16; /* sRGB as defined by IEC 61966-2-1 */
1999 } else if (image->color_space == 2) {
2000 jp2->enumcs = 17; /* greyscale */
2001 } else if (image->color_space == 3) {
2002 jp2->enumcs = 18; /* YUV */
2006 /* Channel Definition box */
2007 /* FIXME not provided by parameters */
2008 /* We try to do what we can... */
2010 for (i = 0; i < image->numcomps; i++) {
2011 if (image->comps[i].alpha != 0) {
2016 if (alpha_count == 1U) { /* no way to deal with more than 1 alpha channel */
2017 switch (jp2->enumcs) {
2029 if (alpha_count == 0U) {
2030 opj_event_msg(p_manager, EVT_WARNING,
2031 "Alpha channel specified but unknown enumcs. No cdef box will be created.\n");
2032 } else if (image->numcomps < (color_channels + 1)) {
2033 opj_event_msg(p_manager, EVT_WARNING,
2034 "Alpha channel specified but not enough image components for an automatic cdef box creation.\n");
2036 } else if ((OPJ_UINT32)alpha_channel < color_channels) {
2037 opj_event_msg(p_manager, EVT_WARNING,
2038 "Alpha channel position conflicts with color channel. No cdef box will be created.\n");
2041 } else if (alpha_count > 1) {
2042 opj_event_msg(p_manager, EVT_WARNING,
2043 "Multiple alpha channels specified. No cdef box will be created.\n");
2045 if (alpha_count == 1U) { /* if here, we know what we can do */
2046 jp2->color.jp2_cdef = (opj_jp2_cdef_t*)opj_malloc(sizeof(opj_jp2_cdef_t));
2047 if (!jp2->color.jp2_cdef) {
2048 opj_event_msg(p_manager, EVT_ERROR,
2049 "Not enough memory to setup the JP2 encoder\n");
2052 /* no memset needed, all values will be overwritten except if jp2->color.jp2_cdef->info allocation fails, */
2053 /* in which case jp2->color.jp2_cdef->info will be NULL => valid for destruction */
2054 jp2->color.jp2_cdef->info = (opj_jp2_cdef_info_t*) opj_malloc(
2055 image->numcomps * sizeof(opj_jp2_cdef_info_t));
2056 if (!jp2->color.jp2_cdef->info) {
2057 /* memory will be freed by opj_jp2_destroy */
2058 opj_event_msg(p_manager, EVT_ERROR,
2059 "Not enough memory to setup the JP2 encoder\n");
2062 jp2->color.jp2_cdef->n = (OPJ_UINT16)
2063 image->numcomps; /* cast is valid : image->numcomps [1,16384] */
2064 for (i = 0U; i < color_channels; i++) {
2065 jp2->color.jp2_cdef->info[i].cn = (OPJ_UINT16)
2066 i; /* cast is valid : image->numcomps [1,16384] */
2067 jp2->color.jp2_cdef->info[i].typ = 0U;
2068 jp2->color.jp2_cdef->info[i].asoc = (OPJ_UINT16)(i +
2069 1U); /* No overflow + cast is valid : image->numcomps [1,16384] */
2071 for (; i < image->numcomps; i++) {
2072 if (image->comps[i].alpha != 0) { /* we'll be here exactly once */
2073 jp2->color.jp2_cdef->info[i].cn = (OPJ_UINT16)
2074 i; /* cast is valid : image->numcomps [1,16384] */
2075 jp2->color.jp2_cdef->info[i].typ = 1U; /* Opacity channel */
2076 jp2->color.jp2_cdef->info[i].asoc =
2077 0U; /* Apply alpha channel to the whole image */
2079 /* Unknown channel */
2080 jp2->color.jp2_cdef->info[i].cn = (OPJ_UINT16)
2081 i; /* cast is valid : image->numcomps [1,16384] */
2082 jp2->color.jp2_cdef->info[i].typ = 65535U;
2083 jp2->color.jp2_cdef->info[i].asoc = 65535U;
2088 jp2->precedence = 0; /* PRECEDENCE */
2089 jp2->approx = 0; /* APPROX */
2091 jp2->jpip_on = parameters->jpip_on;
2096 OPJ_BOOL opj_jp2_encode(opj_jp2_t *jp2,
2097 opj_stream_private_t *stream,
2098 opj_event_mgr_t * p_manager)
2100 return opj_j2k_encode(jp2->j2k, stream, p_manager);
2103 OPJ_BOOL opj_jp2_end_decompress(opj_jp2_t *jp2,
2104 opj_stream_private_t *cio,
2105 opj_event_mgr_t * p_manager
2111 assert(p_manager != 00);
2113 /* customization of the end encoding */
2114 if (! opj_jp2_setup_end_header_reading(jp2, p_manager)) {
2119 if (! opj_jp2_exec(jp2, jp2->m_procedure_list, cio, p_manager)) {
2123 return opj_j2k_end_decompress(jp2->j2k, cio, p_manager);
2126 OPJ_BOOL opj_jp2_end_compress(opj_jp2_t *jp2,
2127 opj_stream_private_t *cio,
2128 opj_event_mgr_t * p_manager
2134 assert(p_manager != 00);
2136 /* customization of the end encoding */
2137 if (! opj_jp2_setup_end_header_writing(jp2, p_manager)) {
2141 if (! opj_j2k_end_compress(jp2->j2k, cio, p_manager)) {
2146 return opj_jp2_exec(jp2, jp2->m_procedure_list, cio, p_manager);
2149 static OPJ_BOOL opj_jp2_setup_end_header_writing(opj_jp2_t *jp2,
2150 opj_event_mgr_t * p_manager)
2154 assert(p_manager != 00);
2158 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2159 (opj_procedure)opj_jpip_write_iptr, p_manager)) {
2164 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2165 (opj_procedure)opj_jp2_write_jp2c, p_manager)) {
2168 /* DEVELOPER CORNER, add your custom procedures */
2171 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2172 (opj_procedure)opj_jpip_write_cidx, p_manager)) {
2175 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2176 (opj_procedure)opj_jpip_write_fidx, p_manager)) {
2184 static OPJ_BOOL opj_jp2_setup_end_header_reading(opj_jp2_t *jp2,
2185 opj_event_mgr_t * p_manager)
2189 assert(p_manager != 00);
2191 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2192 (opj_procedure)opj_jp2_read_header_procedure, p_manager)) {
2195 /* DEVELOPER CORNER, add your custom procedures */
2200 static OPJ_BOOL opj_jp2_default_validation(opj_jp2_t * jp2,
2201 opj_stream_private_t *cio,
2202 opj_event_mgr_t * p_manager
2205 OPJ_BOOL l_is_valid = OPJ_TRUE;
2211 assert(p_manager != 00);
2213 OPJ_UNUSED(p_manager);
2215 /* JPEG2000 codec validation */
2217 /* STATE checking */
2218 /* make sure the state is at 0 */
2219 l_is_valid &= (jp2->jp2_state == JP2_STATE_NONE);
2221 /* make sure not reading a jp2h ???? WEIRD */
2222 l_is_valid &= (jp2->jp2_img_state == JP2_IMG_STATE_NONE);
2224 /* POINTER validation */
2225 /* make sure a j2k codec is present */
2226 l_is_valid &= (jp2->j2k != 00);
2228 /* make sure a procedure list is present */
2229 l_is_valid &= (jp2->m_procedure_list != 00);
2231 /* make sure a validation list is present */
2232 l_is_valid &= (jp2->m_validation_list != 00);
2234 /* PARAMETER VALIDATION */
2235 /* number of components */
2236 l_is_valid &= (jp2->numcl > 0);
2238 l_is_valid &= (jp2->h > 0);
2240 l_is_valid &= (jp2->w > 0);
2242 for (i = 0; i < jp2->numcomps; ++i) {
2243 l_is_valid &= ((jp2->comps[i].bpcc & 0x7FU) <
2244 38U); /* 0 is valid, ignore sign for check */
2248 l_is_valid &= ((jp2->meth > 0) && (jp2->meth < 3));
2250 /* stream validation */
2251 /* back and forth is needed */
2252 l_is_valid &= opj_stream_has_seek(cio);
2257 static OPJ_BOOL opj_jp2_read_header_procedure(opj_jp2_t *jp2,
2258 opj_stream_private_t *stream,
2259 opj_event_mgr_t * p_manager
2263 OPJ_UINT32 l_nb_bytes_read;
2264 const opj_jp2_header_handler_t * l_current_handler;
2265 const opj_jp2_header_handler_t * l_current_handler_misplaced;
2266 OPJ_UINT32 l_last_data_size = OPJ_BOX_SIZE;
2267 OPJ_UINT32 l_current_data_size;
2268 OPJ_BYTE * l_current_data = 00;
2271 assert(stream != 00);
2273 assert(p_manager != 00);
2275 l_current_data = (OPJ_BYTE*)opj_calloc(1, l_last_data_size);
2277 if (l_current_data == 00) {
2278 opj_event_msg(p_manager, EVT_ERROR,
2279 "Not enough memory to handle jpeg2000 file header\n");
2283 while (opj_jp2_read_boxhdr(&box, &l_nb_bytes_read, stream, p_manager)) {
2284 /* is it the codestream box ? */
2285 if (box.type == JP2_JP2C) {
2286 if (jp2->jp2_state & JP2_STATE_HEADER) {
2287 jp2->jp2_state |= JP2_STATE_CODESTREAM;
2288 opj_free(l_current_data);
2291 opj_event_msg(p_manager, EVT_ERROR, "bad placed jpeg codestream\n");
2292 opj_free(l_current_data);
2295 } else if (box.length == 0) {
2296 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
2297 opj_free(l_current_data);
2300 /* testcase 1851.pdf.SIGSEGV.ce9.948 */
2301 else if (box.length < l_nb_bytes_read) {
2302 opj_event_msg(p_manager, EVT_ERROR, "invalid box size %d (%x)\n", box.length,
2304 opj_free(l_current_data);
2308 l_current_handler = opj_jp2_find_handler(box.type);
2309 l_current_handler_misplaced = opj_jp2_img_find_handler(box.type);
2310 l_current_data_size = box.length - l_nb_bytes_read;
2312 if ((l_current_handler != 00) || (l_current_handler_misplaced != 00)) {
2313 if (l_current_handler == 00) {
2314 opj_event_msg(p_manager, EVT_WARNING,
2315 "Found a misplaced '%c%c%c%c' box outside jp2h box\n",
2316 (OPJ_BYTE)(box.type >> 24), (OPJ_BYTE)(box.type >> 16),
2317 (OPJ_BYTE)(box.type >> 8), (OPJ_BYTE)(box.type >> 0));
2318 if (jp2->jp2_state & JP2_STATE_HEADER) {
2319 /* read anyway, we already have jp2h */
2320 l_current_handler = l_current_handler_misplaced;
2322 opj_event_msg(p_manager, EVT_WARNING,
2323 "JPEG2000 Header box not read yet, '%c%c%c%c' box will be ignored\n",
2324 (OPJ_BYTE)(box.type >> 24), (OPJ_BYTE)(box.type >> 16),
2325 (OPJ_BYTE)(box.type >> 8), (OPJ_BYTE)(box.type >> 0));
2326 jp2->jp2_state |= JP2_STATE_UNKNOWN;
2327 if (opj_stream_skip(stream, l_current_data_size,
2328 p_manager) != l_current_data_size) {
2329 opj_event_msg(p_manager, EVT_ERROR,
2330 "Problem with skipping JPEG2000 box, stream error\n");
2331 opj_free(l_current_data);
2337 if ((OPJ_OFF_T)l_current_data_size > opj_stream_get_number_byte_left(stream)) {
2338 /* do not even try to malloc if we can't read */
2339 opj_event_msg(p_manager, EVT_ERROR,
2340 "Invalid box size %d for box '%c%c%c%c'. Need %d bytes, %d bytes remaining \n",
2341 box.length, (OPJ_BYTE)(box.type >> 24), (OPJ_BYTE)(box.type >> 16),
2342 (OPJ_BYTE)(box.type >> 8), (OPJ_BYTE)(box.type >> 0), l_current_data_size,
2343 (OPJ_UINT32)opj_stream_get_number_byte_left(stream));
2344 opj_free(l_current_data);
2347 if (l_current_data_size > l_last_data_size) {
2348 OPJ_BYTE* new_current_data = (OPJ_BYTE*)opj_realloc(l_current_data,
2349 l_current_data_size);
2350 if (!new_current_data) {
2351 opj_free(l_current_data);
2352 opj_event_msg(p_manager, EVT_ERROR,
2353 "Not enough memory to handle jpeg2000 box\n");
2356 l_current_data = new_current_data;
2357 l_last_data_size = l_current_data_size;
2360 l_nb_bytes_read = (OPJ_UINT32)opj_stream_read_data(stream, l_current_data,
2361 l_current_data_size, p_manager);
2362 if (l_nb_bytes_read != l_current_data_size) {
2363 opj_event_msg(p_manager, EVT_ERROR,
2364 "Problem with reading JPEG2000 box, stream error\n");
2365 opj_free(l_current_data);
2369 if (! l_current_handler->handler(jp2, l_current_data, l_current_data_size,
2371 opj_free(l_current_data);
2375 if (!(jp2->jp2_state & JP2_STATE_SIGNATURE)) {
2376 opj_event_msg(p_manager, EVT_ERROR,
2377 "Malformed JP2 file format: first box must be JPEG 2000 signature box\n");
2378 opj_free(l_current_data);
2381 if (!(jp2->jp2_state & JP2_STATE_FILE_TYPE)) {
2382 opj_event_msg(p_manager, EVT_ERROR,
2383 "Malformed JP2 file format: second box must be file type box\n");
2384 opj_free(l_current_data);
2387 jp2->jp2_state |= JP2_STATE_UNKNOWN;
2388 if (opj_stream_skip(stream, l_current_data_size,
2389 p_manager) != l_current_data_size) {
2390 if (jp2->jp2_state & JP2_STATE_CODESTREAM) {
2391 /* If we already read the codestream, do not error out */
2392 /* Needed for data/input/nonregression/issue254.jp2 */
2393 opj_event_msg(p_manager, EVT_WARNING,
2394 "Problem with skipping JPEG2000 box, stream error\n");
2395 opj_free(l_current_data);
2398 opj_event_msg(p_manager, EVT_ERROR,
2399 "Problem with skipping JPEG2000 box, stream error\n");
2400 opj_free(l_current_data);
2407 opj_free(l_current_data);
2413 * Executes the given procedures on the given codec.
2415 * @param p_procedure_list the list of procedures to execute
2416 * @param jp2 the jpeg2000 file codec to execute the procedures on.
2417 * @param stream the stream to execute the procedures on.
2418 * @param p_manager the user manager.
2420 * @return true if all the procedures were successfully executed.
2422 static OPJ_BOOL opj_jp2_exec(opj_jp2_t * jp2,
2423 opj_procedure_list_t * p_procedure_list,
2424 opj_stream_private_t *stream,
2425 opj_event_mgr_t * p_manager
2429 OPJ_BOOL(** l_procedure)(opj_jp2_t * jp2, opj_stream_private_t *,
2430 opj_event_mgr_t *) = 00;
2431 OPJ_BOOL l_result = OPJ_TRUE;
2432 OPJ_UINT32 l_nb_proc, i;
2435 assert(p_procedure_list != 00);
2437 assert(stream != 00);
2438 assert(p_manager != 00);
2440 l_nb_proc = opj_procedure_list_get_nb_procedures(p_procedure_list);
2441 l_procedure = (OPJ_BOOL(**)(opj_jp2_t * jp2, opj_stream_private_t *,
2442 opj_event_mgr_t *)) opj_procedure_list_get_first_procedure(p_procedure_list);
2444 for (i = 0; i < l_nb_proc; ++i) {
2445 l_result = l_result && (*l_procedure)(jp2, stream, p_manager);
2449 /* and clear the procedure list at the end. */
2450 opj_procedure_list_clear(p_procedure_list);
2454 OPJ_BOOL opj_jp2_start_compress(opj_jp2_t *jp2,
2455 opj_stream_private_t *stream,
2456 opj_image_t * p_image,
2457 opj_event_mgr_t * p_manager
2462 assert(stream != 00);
2463 assert(p_manager != 00);
2465 /* customization of the validation */
2466 if (! opj_jp2_setup_encoding_validation(jp2, p_manager)) {
2470 /* validation of the parameters codec */
2471 if (! opj_jp2_exec(jp2, jp2->m_validation_list, stream, p_manager)) {
2475 /* customization of the encoding */
2476 if (! opj_jp2_setup_header_writing(jp2, p_manager)) {
2481 if (! opj_jp2_exec(jp2, jp2->m_procedure_list, stream, p_manager)) {
2485 return opj_j2k_start_compress(jp2->j2k, stream, p_image, p_manager);
2488 static const opj_jp2_header_handler_t * opj_jp2_find_handler(OPJ_UINT32 p_id)
2490 OPJ_UINT32 i, l_handler_size = sizeof(jp2_header) / sizeof(
2491 opj_jp2_header_handler_t);
2493 for (i = 0; i < l_handler_size; ++i) {
2494 if (jp2_header[i].id == p_id) {
2495 return &jp2_header[i];
2502 * Finds the image execution function related to the given box id.
2504 * @param p_id the id of the handler to fetch.
2506 * @return the given handler or 00 if it could not be found.
2508 static const opj_jp2_header_handler_t * opj_jp2_img_find_handler(
2511 OPJ_UINT32 i, l_handler_size = sizeof(jp2_img_header) / sizeof(
2512 opj_jp2_header_handler_t);
2513 for (i = 0; i < l_handler_size; ++i) {
2514 if (jp2_img_header[i].id == p_id) {
2515 return &jp2_img_header[i];
2523 * Reads a jpeg2000 file signature box.
2525 * @param p_header_data the data contained in the signature box.
2526 * @param jp2 the jpeg2000 file codec.
2527 * @param p_header_size the size of the data contained in the signature box.
2528 * @param p_manager the user event manager.
2530 * @return true if the file signature box is valid.
2532 static OPJ_BOOL opj_jp2_read_jp(opj_jp2_t *jp2,
2533 OPJ_BYTE * p_header_data,
2534 OPJ_UINT32 p_header_size,
2535 opj_event_mgr_t * p_manager
2539 OPJ_UINT32 l_magic_number;
2542 assert(p_header_data != 00);
2544 assert(p_manager != 00);
2546 if (jp2->jp2_state != JP2_STATE_NONE) {
2547 opj_event_msg(p_manager, EVT_ERROR,
2548 "The signature box must be the first box in the file.\n");
2552 /* assure length of data is correct (4 -> magic number) */
2553 if (p_header_size != 4) {
2554 opj_event_msg(p_manager, EVT_ERROR, "Error with JP signature Box size\n");
2558 /* rearrange data */
2559 opj_read_bytes(p_header_data, &l_magic_number, 4);
2560 if (l_magic_number != 0x0d0a870a) {
2561 opj_event_msg(p_manager, EVT_ERROR,
2562 "Error with JP Signature : bad magic number\n");
2566 jp2->jp2_state |= JP2_STATE_SIGNATURE;
2572 * Reads a a FTYP box - File type box
2574 * @param p_header_data the data contained in the FTYP box.
2575 * @param jp2 the jpeg2000 file codec.
2576 * @param p_header_size the size of the data contained in the FTYP box.
2577 * @param p_manager the user event manager.
2579 * @return true if the FTYP box is valid.
2581 static OPJ_BOOL opj_jp2_read_ftyp(opj_jp2_t *jp2,
2582 OPJ_BYTE * p_header_data,
2583 OPJ_UINT32 p_header_size,
2584 opj_event_mgr_t * p_manager
2587 OPJ_UINT32 i, l_remaining_bytes;
2590 assert(p_header_data != 00);
2592 assert(p_manager != 00);
2594 if (jp2->jp2_state != JP2_STATE_SIGNATURE) {
2595 opj_event_msg(p_manager, EVT_ERROR,
2596 "The ftyp box must be the second box in the file.\n");
2600 /* assure length of data is correct */
2601 if (p_header_size < 8) {
2602 opj_event_msg(p_manager, EVT_ERROR, "Error with FTYP signature Box size\n");
2606 opj_read_bytes(p_header_data, &jp2->brand, 4); /* BR */
2609 opj_read_bytes(p_header_data, &jp2->minversion, 4); /* MinV */
2612 l_remaining_bytes = p_header_size - 8;
2614 /* the number of remaining bytes should be a multiple of 4 */
2615 if ((l_remaining_bytes & 0x3) != 0) {
2616 opj_event_msg(p_manager, EVT_ERROR, "Error with FTYP signature Box size\n");
2621 jp2->numcl = l_remaining_bytes >> 2;
2623 jp2->cl = (OPJ_UINT32 *) opj_calloc(jp2->numcl, sizeof(OPJ_UINT32));
2624 if (jp2->cl == 00) {
2625 opj_event_msg(p_manager, EVT_ERROR, "Not enough memory with FTYP Box\n");
2630 for (i = 0; i < jp2->numcl; ++i) {
2631 opj_read_bytes(p_header_data, &jp2->cl[i], 4); /* CLi */
2635 jp2->jp2_state |= JP2_STATE_FILE_TYPE;
2640 static OPJ_BOOL opj_jp2_skip_jp2c(opj_jp2_t *jp2,
2641 opj_stream_private_t *stream,
2642 opj_event_mgr_t * p_manager)
2646 assert(stream != 00);
2647 assert(p_manager != 00);
2649 jp2->j2k_codestream_offset = opj_stream_tell(stream);
2651 if (opj_stream_skip(stream, 8, p_manager) != 8) {
2658 static OPJ_BOOL opj_jpip_skip_iptr(opj_jp2_t *jp2,
2659 opj_stream_private_t *stream,
2660 opj_event_mgr_t * p_manager)
2664 assert(stream != 00);
2665 assert(p_manager != 00);
2667 jp2->jpip_iptr_offset = opj_stream_tell(stream);
2669 if (opj_stream_skip(stream, 24, p_manager) != 24) {
2677 * Reads the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box).
2679 * @param p_header_data the data contained in the file header box.
2680 * @param jp2 the jpeg2000 file codec.
2681 * @param p_header_size the size of the data contained in the file header box.
2682 * @param p_manager the user event manager.
2684 * @return true if the JP2 Header box was successfully recognized.
2686 static OPJ_BOOL opj_jp2_read_jp2h(opj_jp2_t *jp2,
2687 OPJ_BYTE *p_header_data,
2688 OPJ_UINT32 p_header_size,
2689 opj_event_mgr_t * p_manager
2692 OPJ_UINT32 l_box_size = 0, l_current_data_size = 0;
2694 const opj_jp2_header_handler_t * l_current_handler;
2695 OPJ_BOOL l_has_ihdr = 0;
2698 assert(p_header_data != 00);
2700 assert(p_manager != 00);
2702 /* make sure the box is well placed */
2703 if ((jp2->jp2_state & JP2_STATE_FILE_TYPE) != JP2_STATE_FILE_TYPE) {
2704 opj_event_msg(p_manager, EVT_ERROR,
2705 "The box must be the first box in the file.\n");
2709 jp2->jp2_img_state = JP2_IMG_STATE_NONE;
2711 /* iterate while remaining data */
2712 while (p_header_size > 0) {
2714 if (! opj_jp2_read_boxhdr_char(&box, p_header_data, &l_box_size, p_header_size,
2716 opj_event_msg(p_manager, EVT_ERROR,
2717 "Stream error while reading JP2 Header box\n");
2721 if (box.length > p_header_size) {
2722 opj_event_msg(p_manager, EVT_ERROR,
2723 "Stream error while reading JP2 Header box: box length is inconsistent.\n");
2727 l_current_handler = opj_jp2_img_find_handler(box.type);
2728 l_current_data_size = box.length - l_box_size;
2729 p_header_data += l_box_size;
2731 if (l_current_handler != 00) {
2732 if (! l_current_handler->handler(jp2, p_header_data, l_current_data_size,
2737 jp2->jp2_img_state |= JP2_IMG_STATE_UNKNOWN;
2740 if (box.type == JP2_IHDR) {
2744 p_header_data += l_current_data_size;
2745 p_header_size -= box.length;
2748 if (l_has_ihdr == 0) {
2749 opj_event_msg(p_manager, EVT_ERROR,
2750 "Stream error while reading JP2 Header box: no 'ihdr' box.\n");
2754 jp2->jp2_state |= JP2_STATE_HEADER;
2760 static OPJ_BOOL opj_jp2_read_boxhdr_char(opj_jp2_box_t *box,
2762 OPJ_UINT32 * p_number_bytes_read,
2763 OPJ_UINT32 p_box_max_size,
2764 opj_event_mgr_t * p_manager
2770 assert(p_data != 00);
2772 assert(p_number_bytes_read != 00);
2773 assert(p_manager != 00);
2775 if (p_box_max_size < 8) {
2776 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of less than 8 bytes\n");
2780 /* process read data */
2781 opj_read_bytes(p_data, &l_value, 4);
2783 box->length = (OPJ_UINT32)(l_value);
2785 opj_read_bytes(p_data, &l_value, 4);
2787 box->type = (OPJ_UINT32)(l_value);
2789 *p_number_bytes_read = 8;
2791 /* do we have a "special very large box ?" */
2792 /* read then the XLBox */
2793 if (box->length == 1) {
2794 OPJ_UINT32 l_xl_part_size;
2796 if (p_box_max_size < 16) {
2797 opj_event_msg(p_manager, EVT_ERROR,
2798 "Cannot handle XL box of less than 16 bytes\n");
2802 opj_read_bytes(p_data, &l_xl_part_size, 4);
2804 *p_number_bytes_read += 4;
2806 if (l_xl_part_size != 0) {
2807 opj_event_msg(p_manager, EVT_ERROR,
2808 "Cannot handle box sizes higher than 2^32\n");
2812 opj_read_bytes(p_data, &l_value, 4);
2813 *p_number_bytes_read += 4;
2814 box->length = (OPJ_UINT32)(l_value);
2816 if (box->length == 0) {
2817 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
2820 } else if (box->length == 0) {
2821 opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
2824 if (box->length < *p_number_bytes_read) {
2825 opj_event_msg(p_manager, EVT_ERROR, "Box length is inconsistent.\n");
2831 OPJ_BOOL opj_jp2_read_header(opj_stream_private_t *p_stream,
2833 opj_image_t ** p_image,
2834 opj_event_mgr_t * p_manager
2839 assert(p_stream != 00);
2840 assert(p_manager != 00);
2842 /* customization of the validation */
2843 if (! opj_jp2_setup_decoding_validation(jp2, p_manager)) {
2847 /* customization of the encoding */
2848 if (! opj_jp2_setup_header_reading(jp2, p_manager)) {
2852 /* validation of the parameters codec */
2853 if (! opj_jp2_exec(jp2, jp2->m_validation_list, p_stream, p_manager)) {
2858 if (! opj_jp2_exec(jp2, jp2->m_procedure_list, p_stream, p_manager)) {
2861 if (jp2->has_jp2h == 0) {
2862 opj_event_msg(p_manager, EVT_ERROR, "JP2H box missing. Required.\n");
2865 if (jp2->has_ihdr == 0) {
2866 opj_event_msg(p_manager, EVT_ERROR, "IHDR box_missing. Required.\n");
2870 return opj_j2k_read_header(p_stream,
2876 static OPJ_BOOL opj_jp2_setup_encoding_validation(opj_jp2_t *jp2,
2877 opj_event_mgr_t * p_manager)
2881 assert(p_manager != 00);
2883 if (! opj_procedure_list_add_procedure(jp2->m_validation_list,
2884 (opj_procedure)opj_jp2_default_validation, p_manager)) {
2887 /* DEVELOPER CORNER, add your custom validation procedure */
2892 static OPJ_BOOL opj_jp2_setup_decoding_validation(opj_jp2_t *jp2,
2893 opj_event_mgr_t * p_manager)
2897 assert(p_manager != 00);
2900 OPJ_UNUSED(p_manager);
2902 /* DEVELOPER CORNER, add your custom validation procedure */
2907 static OPJ_BOOL opj_jp2_setup_header_writing(opj_jp2_t *jp2,
2908 opj_event_mgr_t * p_manager)
2912 assert(p_manager != 00);
2914 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2915 (opj_procedure)opj_jp2_write_jp, p_manager)) {
2918 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2919 (opj_procedure)opj_jp2_write_ftyp, p_manager)) {
2922 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2923 (opj_procedure)opj_jp2_write_jp2h, p_manager)) {
2927 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2928 (opj_procedure)opj_jpip_skip_iptr, p_manager)) {
2932 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2933 (opj_procedure)opj_jp2_skip_jp2c, p_manager)) {
2937 /* DEVELOPER CORNER, insert your custom procedures */
2942 static OPJ_BOOL opj_jp2_setup_header_reading(opj_jp2_t *jp2,
2943 opj_event_mgr_t * p_manager)
2947 assert(p_manager != 00);
2949 if (! opj_procedure_list_add_procedure(jp2->m_procedure_list,
2950 (opj_procedure)opj_jp2_read_header_procedure, p_manager)) {
2954 /* DEVELOPER CORNER, add your custom procedures */
2959 OPJ_BOOL opj_jp2_read_tile_header(opj_jp2_t * p_jp2,
2960 OPJ_UINT32 * p_tile_index,
2961 OPJ_UINT32 * p_data_size,
2962 OPJ_INT32 * p_tile_x0,
2963 OPJ_INT32 * p_tile_y0,
2964 OPJ_INT32 * p_tile_x1,
2965 OPJ_INT32 * p_tile_y1,
2966 OPJ_UINT32 * p_nb_comps,
2968 opj_stream_private_t *p_stream,
2969 opj_event_mgr_t * p_manager
2972 return opj_j2k_read_tile_header(p_jp2->j2k,
2975 p_tile_x0, p_tile_y0,
2976 p_tile_x1, p_tile_y1,
2983 OPJ_BOOL opj_jp2_write_tile(opj_jp2_t *p_jp2,
2984 OPJ_UINT32 p_tile_index,
2986 OPJ_UINT32 p_data_size,
2987 opj_stream_private_t *p_stream,
2988 opj_event_mgr_t * p_manager
2992 return opj_j2k_write_tile(p_jp2->j2k, p_tile_index, p_data, p_data_size,
2993 p_stream, p_manager);
2996 OPJ_BOOL opj_jp2_decode_tile(opj_jp2_t * p_jp2,
2997 OPJ_UINT32 p_tile_index,
2999 OPJ_UINT32 p_data_size,
3000 opj_stream_private_t *p_stream,
3001 opj_event_mgr_t * p_manager
3004 return opj_j2k_decode_tile(p_jp2->j2k, p_tile_index, p_data, p_data_size,
3005 p_stream, p_manager);
3008 void opj_jp2_destroy(opj_jp2_t *jp2)
3011 /* destroy the J2K codec */
3012 opj_j2k_destroy(jp2->j2k);
3016 opj_free(jp2->comps);
3025 if (jp2->color.icc_profile_buf) {
3026 opj_free(jp2->color.icc_profile_buf);
3027 jp2->color.icc_profile_buf = 00;
3030 if (jp2->color.jp2_cdef) {
3031 if (jp2->color.jp2_cdef->info) {
3032 opj_free(jp2->color.jp2_cdef->info);
3033 jp2->color.jp2_cdef->info = NULL;
3036 opj_free(jp2->color.jp2_cdef);
3037 jp2->color.jp2_cdef = 00;
3040 if (jp2->color.jp2_pclr) {
3041 if (jp2->color.jp2_pclr->cmap) {
3042 opj_free(jp2->color.jp2_pclr->cmap);
3043 jp2->color.jp2_pclr->cmap = NULL;
3045 if (jp2->color.jp2_pclr->channel_sign) {
3046 opj_free(jp2->color.jp2_pclr->channel_sign);
3047 jp2->color.jp2_pclr->channel_sign = NULL;
3049 if (jp2->color.jp2_pclr->channel_size) {
3050 opj_free(jp2->color.jp2_pclr->channel_size);
3051 jp2->color.jp2_pclr->channel_size = NULL;
3053 if (jp2->color.jp2_pclr->entries) {
3054 opj_free(jp2->color.jp2_pclr->entries);
3055 jp2->color.jp2_pclr->entries = NULL;
3058 opj_free(jp2->color.jp2_pclr);
3059 jp2->color.jp2_pclr = 00;
3062 if (jp2->m_validation_list) {
3063 opj_procedure_list_destroy(jp2->m_validation_list);
3064 jp2->m_validation_list = 00;
3067 if (jp2->m_procedure_list) {
3068 opj_procedure_list_destroy(jp2->m_procedure_list);
3069 jp2->m_procedure_list = 00;
3076 OPJ_BOOL opj_jp2_set_decoded_components(opj_jp2_t *p_jp2,
3077 OPJ_UINT32 numcomps,
3078 const OPJ_UINT32* comps_indices,
3079 opj_event_mgr_t * p_manager)
3081 return opj_j2k_set_decoded_components(p_jp2->j2k,
3082 numcomps, comps_indices,
3086 OPJ_BOOL opj_jp2_set_decode_area(opj_jp2_t *p_jp2,
3087 opj_image_t* p_image,
3088 OPJ_INT32 p_start_x, OPJ_INT32 p_start_y,
3089 OPJ_INT32 p_end_x, OPJ_INT32 p_end_y,
3090 opj_event_mgr_t * p_manager
3093 return opj_j2k_set_decode_area(p_jp2->j2k, p_image, p_start_x, p_start_y,
3094 p_end_x, p_end_y, p_manager);
3097 OPJ_BOOL opj_jp2_get_tile(opj_jp2_t *p_jp2,
3098 opj_stream_private_t *p_stream,
3099 opj_image_t* p_image,
3100 opj_event_mgr_t * p_manager,
3101 OPJ_UINT32 tile_index
3108 opj_event_msg(p_manager, EVT_WARNING,
3109 "JP2 box which are after the codestream will not be read by this function.\n");
3111 if (! opj_j2k_get_tile(p_jp2->j2k, p_stream, p_image, p_manager, tile_index)) {
3112 opj_event_msg(p_manager, EVT_ERROR,
3113 "Failed to decode the codestream in the JP2 file\n");
3117 if (p_jp2->j2k->m_specific_param.m_decoder.m_numcomps_to_decode) {
3118 /* Bypass all JP2 component transforms */
3122 if (!opj_jp2_check_color(p_image, &(p_jp2->color), p_manager)) {
3126 /* Set Image Color Space */
3127 if (p_jp2->enumcs == 16) {
3128 p_image->color_space = OPJ_CLRSPC_SRGB;
3129 } else if (p_jp2->enumcs == 17) {
3130 p_image->color_space = OPJ_CLRSPC_GRAY;
3131 } else if (p_jp2->enumcs == 18) {
3132 p_image->color_space = OPJ_CLRSPC_SYCC;
3133 } else if (p_jp2->enumcs == 24) {
3134 p_image->color_space = OPJ_CLRSPC_EYCC;
3135 } else if (p_jp2->enumcs == 12) {
3136 p_image->color_space = OPJ_CLRSPC_CMYK;
3138 p_image->color_space = OPJ_CLRSPC_UNKNOWN;
3141 if (p_jp2->color.jp2_pclr) {
3142 /* Part 1, I.5.3.4: Either both or none : */
3143 if (!p_jp2->color.jp2_pclr->cmap) {
3144 opj_jp2_free_pclr(&(p_jp2->color));
3146 if (!opj_jp2_apply_pclr(p_image, &(p_jp2->color), p_manager)) {
3152 /* Apply the color space if needed */
3153 if (p_jp2->color.jp2_cdef) {
3154 opj_jp2_apply_cdef(p_image, &(p_jp2->color), p_manager);
3157 if (p_jp2->color.icc_profile_buf) {
3158 p_image->icc_profile_buf = p_jp2->color.icc_profile_buf;
3159 p_image->icc_profile_len = p_jp2->color.icc_profile_len;
3160 p_jp2->color.icc_profile_buf = NULL;
3166 /* ----------------------------------------------------------------------- */
3167 /* JP2 encoder interface */
3168 /* ----------------------------------------------------------------------- */
3170 opj_jp2_t* opj_jp2_create(OPJ_BOOL p_is_decoder)
3172 opj_jp2_t *jp2 = (opj_jp2_t*)opj_calloc(1, sizeof(opj_jp2_t));
3175 /* create the J2K codec */
3176 if (! p_is_decoder) {
3177 jp2->j2k = opj_j2k_create_compress();
3179 jp2->j2k = opj_j2k_create_decompress();
3182 if (jp2->j2k == 00) {
3183 opj_jp2_destroy(jp2);
3187 /* Color structure */
3188 jp2->color.icc_profile_buf = NULL;
3189 jp2->color.icc_profile_len = 0;
3190 jp2->color.jp2_cdef = NULL;
3191 jp2->color.jp2_pclr = NULL;
3192 jp2->color.jp2_has_colr = 0;
3194 /* validation list creation */
3195 jp2->m_validation_list = opj_procedure_list_create();
3196 if (! jp2->m_validation_list) {
3197 opj_jp2_destroy(jp2);
3201 /* execution list creation */
3202 jp2->m_procedure_list = opj_procedure_list_create();
3203 if (! jp2->m_procedure_list) {
3204 opj_jp2_destroy(jp2);
3212 void jp2_dump(opj_jp2_t* p_jp2, OPJ_INT32 flag, FILE* out_stream)
3215 assert(p_jp2 != 00);
3217 j2k_dump(p_jp2->j2k,
3222 opj_codestream_index_t* jp2_get_cstr_index(opj_jp2_t* p_jp2)
3224 return j2k_get_cstr_index(p_jp2->j2k);
3227 opj_codestream_info_v2_t* jp2_get_cstr_info(opj_jp2_t* p_jp2)
3229 return j2k_get_cstr_info(p_jp2->j2k);
3232 OPJ_BOOL opj_jp2_set_decoded_resolution_factor(opj_jp2_t *p_jp2,
3233 OPJ_UINT32 res_factor,
3234 opj_event_mgr_t * p_manager)
3236 return opj_j2k_set_decoded_resolution_factor(p_jp2->j2k, res_factor, p_manager);
3242 static OPJ_BOOL opj_jpip_write_iptr(opj_jp2_t *jp2,
3243 opj_stream_private_t *cio,
3244 opj_event_mgr_t * p_manager)
3246 OPJ_OFF_T j2k_codestream_exit;
3247 OPJ_BYTE l_data_header [24];
3252 assert(p_manager != 00);
3253 assert(opj_stream_has_seek(cio));
3255 j2k_codestream_exit = opj_stream_tell(cio);
3256 opj_write_bytes(l_data_header, 24, 4); /* size of iptr */
3257 opj_write_bytes(l_data_header + 4, JPIP_IPTR,
3260 opj_write_bytes(l_data_header + 4 + 4, 0, 8); /* offset */
3261 opj_write_bytes(l_data_header + 8 + 8, 0, 8); /* length */
3263 opj_write_double(l_data_header + 4 + 4, 0); /* offset */
3264 opj_write_double(l_data_header + 8 + 8, 0); /* length */
3267 if (! opj_stream_seek(cio, jp2->jpip_iptr_offset, p_manager)) {
3268 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3272 if (opj_stream_write_data(cio, l_data_header, 24, p_manager) != 24) {
3273 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3277 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
3278 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3285 static OPJ_BOOL opj_jpip_write_fidx(opj_jp2_t *jp2,
3286 opj_stream_private_t *cio,
3287 opj_event_mgr_t * p_manager)
3289 OPJ_OFF_T j2k_codestream_exit;
3290 OPJ_BYTE l_data_header [24];
3297 assert(p_manager != 00);
3298 assert(opj_stream_has_seek(cio));
3300 opj_write_bytes(l_data_header, 24, 4); /* size of iptr */
3301 opj_write_bytes(l_data_header + 4, JPIP_FIDX,
3303 opj_write_double(l_data_header + 4 + 4, 0); /* offset */
3304 opj_write_double(l_data_header + 8 + 8, 0); /* length */
3306 if (opj_stream_write_data(cio, l_data_header, 24, p_manager) != 24) {
3307 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3311 j2k_codestream_exit = opj_stream_tell(cio);
3312 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
3313 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3320 static OPJ_BOOL opj_jpip_write_cidx(opj_jp2_t *jp2,
3321 opj_stream_private_t *cio,
3322 opj_event_mgr_t * p_manager)
3324 OPJ_OFF_T j2k_codestream_exit;
3325 OPJ_BYTE l_data_header [24];
3332 assert(p_manager != 00);
3333 assert(opj_stream_has_seek(cio));
3335 j2k_codestream_exit = opj_stream_tell(cio);
3336 opj_write_bytes(l_data_header, 24, 4); /* size of iptr */
3337 opj_write_bytes(l_data_header + 4, JPIP_CIDX,
3340 opj_write_bytes(l_data_header + 4 + 4, 0, 8); /* offset */
3341 opj_write_bytes(l_data_header + 8 + 8, 0, 8); /* length */
3343 opj_write_double(l_data_header + 4 + 4, 0); /* offset */
3344 opj_write_double(l_data_header + 8 + 8, 0); /* length */
3347 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
3348 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3352 if (opj_stream_write_data(cio, l_data_header, 24, p_manager) != 24) {
3353 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3357 j2k_codestream_exit = opj_stream_tell(cio);
3358 if (! opj_stream_seek(cio, j2k_codestream_exit, p_manager)) {
3359 opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
3367 static void write_prxy(int offset_jp2c, int length_jp2c, int offset_idx,
3368 int length_idx, opj_stream_private_t *cio,
3369 opj_event_mgr_t * p_manager)
3371 OPJ_BYTE l_data_header [8];
3372 OPJ_OFF_T len, lenp;
3374 lenp = opj_stream_tell(cio);
3375 opj_stream_skip(cio, 4, p_manager); /* L [at the end] */
3376 opj_write_bytes(l_data_header, JPIP_PRXY, 4); /* IPTR */
3377 opj_stream_write_data(cio, l_data_header, 4, p_manager);
3379 opj_write_bytes(l_data_header, offset_jp2c, 8); /* OOFF */
3380 opj_stream_write_data(cio, l_data_header, 8, p_manager);
3381 opj_write_bytes(l_data_header, length_jp2c, 4); /* OBH part 1 */
3382 opj_write_bytes(l_data_header + 4, JP2_JP2C, 4); /* OBH part 2 */
3383 opj_stream_write_data(cio, l_data_header, 8, p_manager);
3385 opj_write_bytes(l_data_header, 1, 1); /* NI */
3386 opj_stream_write_data(cio, l_data_header, 1, p_manager);
3388 opj_write_bytes(l_data_header, offset_idx, 8); /* IOFF */
3389 opj_stream_write_data(cio, l_data_header, 8, p_manager);
3390 opj_write_bytes(l_data_header, length_idx, 4); /* IBH part 1 */
3391 opj_write_bytes(l_data_header + 4, JPIP_CIDX, 4); /* IBH part 2 */
3392 opj_stream_write_data(cio, l_data_header, 8, p_manager);
3394 len = opj_stream_tell(cio) - lenp;
3395 opj_stream_skip(cio, lenp, p_manager);
3396 opj_write_bytes(l_data_header, len, 4); /* L */
3397 opj_stream_write_data(cio, l_data_header, 4, p_manager);
3398 opj_stream_seek(cio, lenp + len, p_manager);
3404 static int write_fidx(int offset_jp2c, int length_jp2c, int offset_idx,
3405 int length_idx, opj_stream_private_t *cio,
3406 opj_event_mgr_t * p_manager)
3408 OPJ_BYTE l_data_header [4];
3409 OPJ_OFF_T len, lenp;
3411 lenp = opj_stream_tell(cio);
3412 opj_stream_skip(cio, 4, p_manager);
3413 opj_write_bytes(l_data_header, JPIP_FIDX, 4); /* FIDX */
3414 opj_stream_write_data(cio, l_data_header, 4, p_manager);
3416 write_prxy(offset_jp2c, length_jp2c, offset_idx, length_idx, cio, p_manager);
3418 len = opj_stream_tell(cio) - lenp;
3419 opj_stream_skip(cio, lenp, p_manager);
3420 opj_write_bytes(l_data_header, len, 4); /* L */
3421 opj_stream_write_data(cio, l_data_header, 4, p_manager);
3422 opj_stream_seek(cio, lenp + len, p_manager);
3427 #endif /* USE_JPIP */