2 * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
3 * Copyright (c) 2002-2007, Professor Benoit Macq
4 * Copyright (c) 2001-2003, David Janssens
5 * Copyright (c) 2002-2003, Yannick Verschueren
6 * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
7 * Copyright (c) 2005, Herve Drolon, FreeImage Team
8 * Copyright (c) 2010-2011, Kaori Hagihara
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
32 #include "opj_includes.h"
34 /** @defgroup JP2 JP2 - JPEG-2000 file format reader/writer */
39 /** @name Local static functions */
42 /*static void jp2_write_url(opj_cio_t *cio, char *Idx_file);*/
45 * Reads a IHDR box - Image Header box
47 * @param p_image_header_data pointer to actual data (already read from file)
48 * @param jp2 the jpeg2000 file codec.
49 * @param p_image_header_size the size of the image header
50 * @param p_manager the user event manager.
52 * @return true if the image header is valid, false else.
54 static opj_bool opj_jp2_read_ihdr( opj_jp2_v2_t *jp2,
55 OPJ_BYTE *p_image_header_data,
56 OPJ_UINT32 p_image_header_size,
57 opj_event_mgr_t * p_manager );
60 * Writes the Image Header box - Image Header box.
62 * @param jp2 jpeg2000 file codec.
63 * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
65 * @return the data being copied.
67 static OPJ_BYTE * opj_jp2_write_ihdr(opj_jp2_v2_t *jp2,
68 OPJ_UINT32 * p_nb_bytes_written );
71 * Writes the Bit per Component box.
73 * @param jp2 jpeg2000 file codec.
74 * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
76 * @return the data being copied.
78 static OPJ_BYTE * opj_jp2_write_bpcc( opj_jp2_v2_t *jp2,
79 OPJ_UINT32 * p_nb_bytes_written );
82 * Reads a Bit per Component box.
84 * @param p_bpc_header_data pointer to actual data (already read from file)
85 * @param jp2 the jpeg2000 file codec.
86 * @param p_bpc_header_size the size of the bpc header
87 * @param p_manager the user event manager.
89 * @return true if the bpc header is valid, fale else.
91 static opj_bool opj_jp2_read_bpcc( opj_jp2_v2_t *jp2,
92 OPJ_BYTE * p_bpc_header_data,
93 OPJ_UINT32 p_bpc_header_size,
94 opj_event_mgr_t * p_manager );
96 static opj_bool opj_jp2_read_cdef( opj_jp2_v2_t * jp2,
97 OPJ_BYTE * p_cdef_header_data,
98 OPJ_UINT32 p_cdef_header_size,
99 opj_event_mgr_t * p_manager );
101 static void opj_jp2_apply_cdef(opj_image_t *image, opj_jp2_color_t *color);
104 * Writes the Colour Specification box.
106 * @param jp2 jpeg2000 file codec.
107 * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
109 * @return the data being copied.
111 static OPJ_BYTE * opj_jp2_write_colr( opj_jp2_v2_t *jp2,
112 OPJ_UINT32 * p_nb_bytes_written );
115 * Writes a FTYP box - File type box
117 * @param cio the stream to write data to.
118 * @param jp2 the jpeg2000 file codec.
119 * @param p_manager the user event manager.
121 * @return true if writing was successful.
123 static opj_bool opj_jp2_write_ftyp( opj_jp2_v2_t *jp2,
124 opj_stream_private_t *cio,
125 opj_event_mgr_t * p_manager );
128 * Reads a a FTYP box - File type box
130 * @param p_header_data the data contained in the FTYP box.
131 * @param jp2 the jpeg2000 file codec.
132 * @param p_header_size the size of the data contained in the FTYP box.
133 * @param p_manager the user event manager.
135 * @return true if the FTYP box is valid.
137 static opj_bool opj_jp2_read_ftyp( opj_jp2_v2_t *jp2,
138 OPJ_BYTE * p_header_data,
139 OPJ_UINT32 p_header_size,
140 opj_event_mgr_t * p_manager );
142 opj_bool opj_jp2_skip_jp2c( opj_jp2_v2_t *jp2,
143 opj_stream_private_t *cio,
144 opj_event_mgr_t * p_manager );
147 * Reads the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box).
149 * @param p_header_data the data contained in the file header box.
150 * @param jp2 the jpeg2000 file codec.
151 * @param p_header_size the size of the data contained in the file header box.
152 * @param p_manager the user event manager.
154 * @return true if the JP2 Header box was successfully reconized.
156 static opj_bool opj_jp2_read_jp2h( opj_jp2_v2_t *jp2,
157 OPJ_BYTE *p_header_data,
158 OPJ_UINT32 p_header_size,
159 opj_event_mgr_t * p_manager );
162 * Writes the Jpeg2000 codestream Header box - JP2C Header box. This function must be called AFTER the coding has been done.
164 * @param cio the stream to write data to.
165 * @param jp2 the jpeg2000 file codec.
166 * @param p_manager user event manager.
168 * @return true if writing was successful.
170 static opj_bool opj_jp2_write_jp2c( opj_jp2_v2_t *jp2,
171 opj_stream_private_t *cio,
172 opj_event_mgr_t * p_manager );
175 * Reads a jpeg2000 file signature box.
177 * @param p_header_data the data contained in the signature box.
178 * @param jp2 the jpeg2000 file codec.
179 * @param p_header_size the size of the data contained in the signature box.
180 * @param p_manager the user event manager.
182 * @return true if the file signature box is valid.
184 static opj_bool opj_jp2_read_jp(opj_jp2_v2_t *jp2,
185 OPJ_BYTE * p_header_data,
186 OPJ_UINT32 p_header_size,
187 opj_event_mgr_t * p_manager);
190 * Writes a jpeg2000 file signature box.
192 * @param cio the stream to write data to.
193 * @param jp2 the jpeg2000 file codec.
194 * @param p_manager the user event manager.
196 * @return true if writing was successful.
198 static opj_bool opj_jp2_write_jp( opj_jp2_v2_t *jp2,
199 opj_stream_private_t *cio,
200 opj_event_mgr_t * p_manager );
203 Apply collected palette data
204 @param color Collector for profile, cdef and pclr data
207 static void opj_jp2_apply_pclr(opj_image_t *image, opj_jp2_color_t *color);
209 static void opj_jp2_free_pclr(opj_jp2_color_t *color);
212 * Collect palette data
214 * @param jp2 JP2 handle
215 * @param p_pclr_header_data FIXME DOC
216 * @param p_pclr_header_size FIXME DOC
219 * @return Returns true if successful, returns false otherwise
221 static opj_bool opj_jp2_read_pclr( opj_jp2_v2_t *jp2,
222 OPJ_BYTE * p_pclr_header_data,
223 OPJ_UINT32 p_pclr_header_size,
224 opj_event_mgr_t * p_manager );
227 * Collect component mapping data
229 * @param jp2 JP2 handle
230 * @param p_cmap_header_data FIXME DOC
231 * @param p_cmap_header_size FIXME DOC
232 * @param p_manager FIXME DOC
234 * @return Returns true if successful, returns false otherwise
237 static opj_bool opj_jp2_read_cmap( opj_jp2_v2_t * jp2,
238 OPJ_BYTE * p_cmap_header_data,
239 OPJ_UINT32 p_cmap_header_size,
240 opj_event_mgr_t * p_manager );
243 * Reads the Color Specification box.
245 * @param p_colr_header_data pointer to actual data (already read from file)
246 * @param jp2 the jpeg2000 file codec.
247 * @param p_colr_header_size the size of the color header
248 * @param p_manager the user event manager.
250 * @return true if the bpc header is valid, fale else.
252 static opj_bool opj_jp2_read_colr( opj_jp2_v2_t *jp2,
253 OPJ_BYTE * p_colr_header_data,
254 OPJ_UINT32 p_colr_header_size,
255 opj_event_mgr_t * p_manager );
262 * Sets up the procedures to do on writing header after the codestream.
263 * Developpers wanting to extend the library can add their own writing procedures.
265 static void opj_jp2_setup_end_header_writing (opj_jp2_v2_t *jp2);
268 * Sets up the procedures to do on reading header after the codestream.
269 * Developpers wanting to extend the library can add their own writing procedures.
271 static void opj_jp2_setup_end_header_reading (opj_jp2_v2_t *jp2);
274 * Reads a jpeg2000 file header structure.
276 * @param jp2 the jpeg2000 file header structure.
277 * @param stream the stream to read data from.
278 * @param p_manager the user event manager.
280 * @return true if the box is valid.
282 static opj_bool opj_jp2_read_header_procedure( opj_jp2_v2_t *jp2,
283 opj_stream_private_t *stream,
284 opj_event_mgr_t * p_manager );
287 * Excutes the given procedures on the given codec.
289 * @param p_procedure_list the list of procedures to execute
290 * @param jp2 the jpeg2000 file codec to execute the procedures on.
291 * @param stream the stream to execute the procedures on.
292 * @param p_manager the user manager.
294 * @return true if all the procedures were successfully executed.
296 static opj_bool opj_jp2_exec ( opj_jp2_v2_t * jp2,
297 opj_procedure_list_t * p_procedure_list,
298 opj_stream_private_t *stream,
299 opj_event_mgr_t * p_manager );
302 * Reads a box header. The box is the way data is packed inside a jpeg2000 file structure.
304 * @param cio the input stream to read data from.
305 * @param box the box structure to fill.
306 * @param p_number_bytes_read pointer to an int that will store the number of bytes read from the stream (shoul usually be 2).
307 * @param p_manager user event manager.
309 * @return true if the box is reconized, false otherwise
311 static opj_bool opj_jp2_read_boxhdr(opj_jp2_box_t *box,
312 OPJ_UINT32 * p_number_bytes_read,
313 opj_stream_private_t *cio,
314 opj_event_mgr_t * p_manager);
317 * Sets up the validation ,i.e. adds the procedures to lauch to make sure the codec parameters
318 * are valid. Developpers wanting to extend the library can add their own validation procedures.
320 static void opj_jp2_setup_encoding_validation (opj_jp2_v2_t *jp2);
323 * Sets up the procedures to do on writing header. Developpers wanting to extend the library can add their own writing procedures.
325 static void opj_jp2_setup_header_writing (opj_jp2_v2_t *jp2);
327 opj_bool opj_jp2_default_validation ( opj_jp2_v2_t * jp2,
328 opj_stream_private_t *cio,
329 opj_event_mgr_t * p_manager );
332 * Finds the image execution function related to the given box id.
334 * @param p_id the id of the handler to fetch.
336 * @return the given handler or NULL if it could not be found.
338 static const opj_jp2_header_handler_t * opj_jp2_img_find_handler (OPJ_UINT32 p_id);
341 * Finds the execution function related to the given box id.
343 * @param p_id the id of the handler to fetch.
345 * @return the given handler or NULL if it could not be found.
347 static const opj_jp2_header_handler_t * opj_jp2_find_handler (OPJ_UINT32 p_id );
349 const opj_jp2_header_handler_t jp2_header [] =
351 {JP2_JP,opj_jp2_read_jp},
352 {JP2_FTYP,opj_jp2_read_ftyp},
353 {JP2_JP2H,opj_jp2_read_jp2h}
356 const opj_jp2_header_handler_t jp2_img_header [] =
358 {JP2_IHDR,opj_jp2_read_ihdr},
359 {JP2_COLR,opj_jp2_read_colr},
360 {JP2_BPCC,opj_jp2_read_bpcc},
361 {JP2_PCLR,opj_jp2_read_pclr},
362 {JP2_CMAP,opj_jp2_read_cmap},
363 {JP2_CDEF,opj_jp2_read_cdef}
368 * Reads a box header. The box is the way data is packed inside a jpeg2000 file structure. Data is read from a character string
370 * @param box the box structure to fill.
371 * @param p_data the character string to read data from.
372 * @param p_number_bytes_read pointer to an int that will store the number of bytes read from the stream (shoul usually be 2).
373 * @param p_box_max_size the maximum number of bytes in the box.
374 * @param p_manager FIXME DOC
376 * @return true if the box is reconized, false otherwise
378 static opj_bool opj_jp2_read_boxhdr_char( opj_jp2_box_t *box,
380 OPJ_UINT32 * p_number_bytes_read,
381 OPJ_UINT32 p_box_max_size,
382 opj_event_mgr_t * p_manager );
385 * Sets up the validation ,i.e. adds the procedures to lauch to make sure the codec parameters
386 * are valid. Developpers wanting to extend the library can add their own validation procedures.
388 static void opj_jp2_setup_decoding_validation (opj_jp2_v2_t *jp2);
391 * Sets up the procedures to do on reading header.
392 * Developpers wanting to extend the library can add their own writing procedures.
394 static void opj_jp2_setup_header_reading (opj_jp2_v2_t *jp2);
396 /* ----------------------------------------------------------------------- */
398 opj_bool opj_jp2_read_boxhdr(opj_jp2_box_t *box,
399 OPJ_UINT32 * p_number_bytes_read,
400 opj_stream_private_t *cio,
401 opj_event_mgr_t * p_manager
404 /* read header from file */
405 unsigned char l_data_header [8];
410 assert(p_number_bytes_read != 00);
411 assert(p_manager != 00);
413 *p_number_bytes_read = opj_stream_read_data(cio,l_data_header,8,p_manager);
414 if (*p_number_bytes_read != 8) {
418 /* process read data */
419 opj_read_bytes(l_data_header,&(box->length), 4);
420 opj_read_bytes(l_data_header+4,&(box->type), 4);
422 /* do we have a "special very large box ?" */
423 /* read then the XLBox */
424 if (box->length == 1) {
425 OPJ_UINT32 l_xl_part_size;
427 OPJ_UINT32 l_nb_bytes_read = opj_stream_read_data(cio,l_data_header,8,p_manager);
428 if (l_nb_bytes_read != 8) {
429 if (l_nb_bytes_read > 0) {
430 *p_number_bytes_read += l_nb_bytes_read;
436 opj_read_bytes(l_data_header,&l_xl_part_size, 4);
437 if (l_xl_part_size != 0) {
438 opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot handle box sizes higher than 2^32\n");
441 opj_read_bytes(l_data_header,&(box->length), 4);
447 static void jp2_write_url(opj_cio_t *cio, char *Idx_file) {
451 box.init_pos = cio_tell(cio);
453 cio_write(cio, JP2_URL, 4); /* DBTL */
454 cio_write(cio, 0, 1); /* VERS */
455 cio_write(cio, 0, 3); /* FLAG */
458 for (i = 0; i < strlen(Idx_file); i++) {
459 cio_write(cio, Idx_file[i], 1);
463 box.length = cio_tell(cio) - box.init_pos;
464 cio_seek(cio, box.init_pos);
465 cio_write(cio, box.length, 4); /* L */
466 cio_seek(cio, box.init_pos + box.length);
470 opj_bool opj_jp2_read_ihdr( opj_jp2_v2_t *jp2,
471 OPJ_BYTE *p_image_header_data,
472 OPJ_UINT32 p_image_header_size,
473 opj_event_mgr_t * p_manager )
476 assert(p_image_header_data != 00);
478 assert(p_manager != 00);
480 if (p_image_header_size != 14) {
481 opj_event_msg_v2(p_manager, EVT_ERROR, "Bad image header box (bad size)\n");
485 opj_read_bytes(p_image_header_data,&(jp2->h),4); /* HEIGHT */
486 p_image_header_data += 4;
487 opj_read_bytes(p_image_header_data,&(jp2->w),4); /* WIDTH */
488 p_image_header_data += 4;
489 opj_read_bytes(p_image_header_data,&(jp2->numcomps),2); /* NC */
490 p_image_header_data += 2;
492 /* allocate memory for components */
493 jp2->comps = (opj_jp2_comps_t*) opj_malloc(jp2->numcomps * sizeof(opj_jp2_comps_t));
494 if (jp2->comps == 0) {
495 opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory to handle image header (ihdr)\n");
498 memset(jp2->comps,0,jp2->numcomps * sizeof(opj_jp2_comps_t));
500 opj_read_bytes(p_image_header_data,&(jp2->bpc),1); /* BPC */
501 ++ p_image_header_data;
503 /* if equal to 0 then need a BPC box (cf. chapter about image header box of the norm) */
504 /*if (jp2->bpc == 0){
505 indicate with a flag that we will wait a BPC box
508 opj_read_bytes(p_image_header_data,&(jp2->C),1); /* C */
509 ++ p_image_header_data;
511 /* Should be equal to 7 cf. chapter about image header box of the norm */
513 opj_event_msg_v2(p_manager, EVT_INFO, "JP2 IHDR box: compression type indicate that the file is not a conforming JP2 file (%d) \n", jp2->C);
516 opj_read_bytes(p_image_header_data,&(jp2->UnkC),1); /* UnkC */
517 ++ p_image_header_data;
518 opj_read_bytes(p_image_header_data,&(jp2->IPR),1); /* IPR */
519 ++ p_image_header_data;
524 OPJ_BYTE * opj_jp2_write_ihdr(opj_jp2_v2_t *jp2,
525 OPJ_UINT32 * p_nb_bytes_written
528 unsigned char * l_ihdr_data,* l_current_ihdr_ptr;
532 assert(p_nb_bytes_written != 00);
534 /* default image header is 22 bytes wide */
535 l_ihdr_data = (unsigned char *) opj_malloc(22);
536 if (l_ihdr_data == 00) {
539 memset(l_ihdr_data,0,22);
541 l_current_ihdr_ptr = l_ihdr_data;
543 opj_write_bytes(l_current_ihdr_ptr,22,4); /* write box size */
544 l_current_ihdr_ptr+=4;
546 opj_write_bytes(l_current_ihdr_ptr,JP2_IHDR, 4); /* IHDR */
547 l_current_ihdr_ptr+=4;
549 opj_write_bytes(l_current_ihdr_ptr,jp2->h, 4); /* HEIGHT */
550 l_current_ihdr_ptr+=4;
552 opj_write_bytes(l_current_ihdr_ptr, jp2->w, 4); /* WIDTH */
553 l_current_ihdr_ptr+=4;
555 opj_write_bytes(l_current_ihdr_ptr, jp2->numcomps, 2); /* NC */
556 l_current_ihdr_ptr+=2;
558 opj_write_bytes(l_current_ihdr_ptr, jp2->bpc, 1); /* BPC */
559 ++l_current_ihdr_ptr;
561 opj_write_bytes(l_current_ihdr_ptr, jp2->C, 1); /* C : Always 7 */
562 ++l_current_ihdr_ptr;
564 opj_write_bytes(l_current_ihdr_ptr, jp2->UnkC, 1); /* UnkC, colorspace unknown */
565 ++l_current_ihdr_ptr;
567 opj_write_bytes(l_current_ihdr_ptr, jp2->IPR, 1); /* IPR, no intellectual property */
568 ++l_current_ihdr_ptr;
570 *p_nb_bytes_written = 22;
575 OPJ_BYTE * opj_jp2_write_bpcc( opj_jp2_v2_t *jp2,
576 OPJ_UINT32 * p_nb_bytes_written
580 /* room for 8 bytes for box and 1 byte for each component */
581 int l_bpcc_size = 8 + jp2->numcomps;
582 unsigned char * l_bpcc_data,* l_current_bpcc_ptr;
586 assert(p_nb_bytes_written != 00);
588 l_bpcc_data = (unsigned char *) opj_malloc(l_bpcc_size);
589 if (l_bpcc_data == 00) {
592 memset(l_bpcc_data,0,l_bpcc_size);
594 l_current_bpcc_ptr = l_bpcc_data;
596 opj_write_bytes(l_current_bpcc_ptr,l_bpcc_size,4); /* write box size */
597 l_current_bpcc_ptr += 4;
599 opj_write_bytes(l_current_bpcc_ptr,JP2_BPCC,4); /* BPCC */
600 l_current_bpcc_ptr += 4;
602 for (i = 0; i < jp2->numcomps; ++i) {
603 opj_write_bytes(l_current_bpcc_ptr, jp2->comps[i].bpcc, 1); /* write each component information */
604 ++l_current_bpcc_ptr;
607 *p_nb_bytes_written = l_bpcc_size;
612 opj_bool opj_jp2_read_bpcc( opj_jp2_v2_t *jp2,
613 OPJ_BYTE * p_bpc_header_data,
614 OPJ_UINT32 p_bpc_header_size,
615 opj_event_mgr_t * p_manager
621 assert(p_bpc_header_data != 00);
623 assert(p_manager != 00);
626 /*if (jp2->bpc != 0 ){
627 opj_event_msg_v2(p_manager, EVT_WARNING, "A BPCC header box is available although BPC is different to zero (%d)\n",jp2->bpc);
630 /* and length is relevant */
631 if (p_bpc_header_size != jp2->numcomps) {
632 opj_event_msg_v2(p_manager, EVT_ERROR, "Bad BPCC header box (bad size)\n");
636 /* read info for each component */
637 for (i = 0; i < jp2->numcomps; ++i) {
638 opj_read_bytes(p_bpc_header_data,&jp2->comps[i].bpcc ,1); /* read each BPCC component */
645 OPJ_BYTE * opj_jp2_write_colr( opj_jp2_v2_t *jp2,
646 OPJ_UINT32 * p_nb_bytes_written
649 /* room for 8 bytes for box 3 for common data and variable upon profile*/
650 unsigned int l_colr_size = 11;
651 unsigned char * l_colr_data,* l_current_colr_ptr;
655 assert(p_nb_bytes_written != 00);
668 l_colr_data = (unsigned char *) opj_malloc(l_colr_size);
669 if (l_colr_data == 00) {
672 memset(l_colr_data,0,l_colr_size);
674 l_current_colr_ptr = l_colr_data;
676 opj_write_bytes(l_current_colr_ptr,l_colr_size,4); /* write box size */
677 l_current_colr_ptr += 4;
679 opj_write_bytes(l_current_colr_ptr,JP2_COLR,4); /* BPCC */
680 l_current_colr_ptr += 4;
682 opj_write_bytes(l_current_colr_ptr, jp2->meth,1); /* METH */
683 ++l_current_colr_ptr;
685 opj_write_bytes(l_current_colr_ptr, jp2->precedence,1); /* PRECEDENCE */
686 ++l_current_colr_ptr;
688 opj_write_bytes(l_current_colr_ptr, jp2->approx,1); /* APPROX */
689 ++l_current_colr_ptr;
691 if (jp2->meth == 1) {
692 opj_write_bytes(l_current_colr_ptr, jp2->enumcs,4); /* EnumCS */
695 opj_write_bytes(l_current_colr_ptr, 0, 1); /* PROFILE (??) */
698 *p_nb_bytes_written = l_colr_size;
703 void opj_jp2_free_pclr(opj_jp2_color_t *color)
705 opj_free(color->jp2_pclr->channel_sign);
706 opj_free(color->jp2_pclr->channel_size);
707 opj_free(color->jp2_pclr->entries);
709 if(color->jp2_pclr->cmap) opj_free(color->jp2_pclr->cmap);
711 opj_free(color->jp2_pclr); color->jp2_pclr = NULL;
714 void opj_jp2_apply_pclr(opj_image_t *image, opj_jp2_color_t *color)
716 opj_image_comp_t *old_comps, *new_comps;
717 OPJ_BYTE *channel_size, *channel_sign;
719 opj_jp2_cmap_comp_t *cmap;
720 OPJ_INT32 *src, *dst;
722 OPJ_UINT16 i, nr_channels, cmp, pcol;
725 channel_size = color->jp2_pclr->channel_size;
726 channel_sign = color->jp2_pclr->channel_sign;
727 entries = color->jp2_pclr->entries;
728 cmap = color->jp2_pclr->cmap;
729 nr_channels = color->jp2_pclr->nr_channels;
731 old_comps = image->comps;
732 new_comps = (opj_image_comp_t*)
733 opj_malloc(nr_channels * sizeof(opj_image_comp_t));
735 for(i = 0; i < nr_channels; ++i) {
736 pcol = cmap[i].pcol; cmp = cmap[i].cmp;
738 new_comps[pcol] = old_comps[cmp];
741 if(cmap[i].mtyp == 0){
742 old_comps[cmp].data = NULL; continue;
745 /* Palette mapping: */
746 new_comps[pcol].data = (int*)
747 opj_malloc(old_comps[cmp].w * old_comps[cmp].h * sizeof(int));
748 new_comps[pcol].prec = channel_size[i];
749 new_comps[pcol].sgnd = channel_sign[i];
752 top_k = color->jp2_pclr->nr_entries - 1;
754 for(i = 0; i < nr_channels; ++i) {
756 if(cmap[i].mtyp == 0) continue;
758 /* Palette mapping: */
759 cmp = cmap[i].cmp; pcol = cmap[i].pcol;
760 src = old_comps[cmp].data;
761 dst = new_comps[pcol].data;
762 max = new_comps[pcol].w * new_comps[pcol].h;
764 for(j = 0; j < max; ++j)
767 if((k = src[j]) < 0) k = 0; else if(k > top_k) k = top_k;
770 dst[j] = entries[k * nr_channels + pcol];
774 max = image->numcomps;
775 for(i = 0; i < max; ++i) {
776 if(old_comps[i].data) opj_free(old_comps[i].data);
780 image->comps = new_comps;
781 image->numcomps = nr_channels;
783 opj_jp2_free_pclr(color);
787 opj_bool opj_jp2_read_pclr( opj_jp2_v2_t *jp2,
788 OPJ_BYTE * p_pclr_header_data,
789 OPJ_UINT32 p_pclr_header_size,
790 opj_event_mgr_t * p_manager
793 opj_jp2_pclr_t *jp2_pclr;
794 OPJ_BYTE *channel_size, *channel_sign;
796 OPJ_UINT16 nr_entries,nr_channels;
801 assert(p_pclr_header_data != 00);
803 assert(p_manager != 00);
804 (void)p_pclr_header_size;
806 if(jp2->color.jp2_pclr)
809 opj_read_bytes(p_pclr_header_data, &l_value , 2); /* NE */
810 p_pclr_header_data += 2;
811 nr_entries = (OPJ_UINT16) l_value;
813 opj_read_bytes(p_pclr_header_data, &l_value , 1); /* NPC */
814 ++p_pclr_header_data;
815 nr_channels = (OPJ_UINT16) l_value;
817 entries = (OPJ_UINT32*) opj_malloc(nr_channels * nr_entries * sizeof(OPJ_UINT32));
818 channel_size = (OPJ_BYTE*) opj_malloc(nr_channels);
819 channel_sign = (OPJ_BYTE*) opj_malloc(nr_channels);
821 jp2_pclr = (opj_jp2_pclr_t*)opj_malloc(sizeof(opj_jp2_pclr_t));
822 jp2_pclr->channel_sign = channel_sign;
823 jp2_pclr->channel_size = channel_size;
824 jp2_pclr->entries = entries;
825 jp2_pclr->nr_entries = nr_entries;
826 jp2_pclr->nr_channels = (OPJ_BYTE) l_value;
827 jp2_pclr->cmap = NULL;
829 jp2->color.jp2_pclr = jp2_pclr;
831 for(i = 0; i < nr_channels; ++i) {
832 opj_read_bytes(p_pclr_header_data, &l_value , 1); /* Bi */
833 ++p_pclr_header_data;
835 channel_size[i] = (l_value & 0x7f) + 1;
836 channel_sign[i] = (l_value & 0x80)? 1 : 0;
839 for(j = 0; j < nr_entries; ++j) {
840 for(i = 0; i < nr_channels; ++i) {
841 int bytes_to_read = (channel_size[i]+7)>>3;
843 opj_read_bytes(p_pclr_header_data, &l_value , bytes_to_read); /* Cji */
844 p_pclr_header_data += bytes_to_read;
845 *entries = (OPJ_UINT32) l_value;
853 opj_bool opj_jp2_read_cmap( opj_jp2_v2_t * jp2,
854 OPJ_BYTE * p_cmap_header_data,
855 OPJ_UINT32 p_cmap_header_size,
856 opj_event_mgr_t * p_manager
859 opj_jp2_cmap_comp_t *cmap;
860 OPJ_BYTE i, nr_channels;
865 assert(p_cmap_header_data != 00);
866 assert(p_manager != 00);
867 (void)p_cmap_header_size;
869 /* Need nr_channels: */
870 if(jp2->color.jp2_pclr == NULL) {
871 opj_event_msg_v2(p_manager, EVT_ERROR, "Need to read a PCLR box before the CMAP box.\n");
875 /* Part 1, I.5.3.5: 'There shall be at most one Component Mapping box
876 * inside a JP2 Header box' :
878 if(jp2->color.jp2_pclr->cmap) {
879 opj_event_msg_v2(p_manager, EVT_ERROR, "Only one CMAP box is allowed.\n");
883 nr_channels = jp2->color.jp2_pclr->nr_channels;
884 cmap = (opj_jp2_cmap_comp_t*) opj_malloc(nr_channels * sizeof(opj_jp2_cmap_comp_t));
886 for(i = 0; i < nr_channels; ++i) {
887 opj_read_bytes(p_cmap_header_data, &l_value, 2); /* CMP^i */
888 p_cmap_header_data +=2;
889 cmap[i].cmp = (OPJ_UINT16) l_value;
891 opj_read_bytes(p_cmap_header_data, &l_value, 1); /* MTYP^i */
892 ++p_cmap_header_data;
893 cmap[i].mtyp = (OPJ_BYTE) l_value;
895 opj_read_bytes(p_cmap_header_data, &l_value, 1); /* PCOL^i */
896 ++p_cmap_header_data;
897 cmap[i].pcol = (OPJ_BYTE) l_value;
900 jp2->color.jp2_pclr->cmap = cmap;
905 void opj_jp2_apply_cdef(opj_image_t *image, opj_jp2_color_t *color)
907 opj_jp2_cdef_info_t *info;
908 OPJ_INT32 color_space;
909 OPJ_UINT16 i, n, cn, typ, asoc, acn;
911 color_space = image->color_space;
912 info = color->jp2_cdef->info;
913 n = color->jp2_cdef->n;
915 for(i = 0; i < n; ++i)
917 /* WATCH: acn = asoc - 1 ! */
918 if((asoc = info[i].asoc) == 0) continue;
920 cn = info[i].cn; typ = info[i].typ; acn = asoc - 1;
924 opj_image_comp_t saved;
926 memcpy(&saved, &image->comps[cn], sizeof(opj_image_comp_t));
927 memcpy(&image->comps[cn], &image->comps[acn], sizeof(opj_image_comp_t));
928 memcpy(&image->comps[acn], &saved, sizeof(opj_image_comp_t));
930 info[i].asoc = cn + 1;
931 info[acn].asoc = info[acn].cn + 1;
935 if(color->jp2_cdef->info) opj_free(color->jp2_cdef->info);
937 opj_free(color->jp2_cdef); color->jp2_cdef = NULL;
939 }/* jp2_apply_cdef() */
941 opj_bool opj_jp2_read_cdef( opj_jp2_v2_t * jp2,
942 OPJ_BYTE * p_cdef_header_data,
943 OPJ_UINT32 p_cdef_header_size,
944 opj_event_mgr_t * p_manager
947 opj_jp2_cdef_info_t *cdef_info;
953 assert(p_cdef_header_data != 00);
954 assert(p_manager != 00);
955 (void)p_cdef_header_size;
957 /* Part 1, I.5.3.6: 'The shall be at most one Channel Definition box
958 * inside a JP2 Header box.'*/
959 if(jp2->color.jp2_cdef) return OPJ_FALSE;
961 opj_read_bytes(p_cdef_header_data,&l_value ,2); /* N */
962 p_cdef_header_data+= 2;
964 if ( (OPJ_UINT16)l_value == 0){ /* szukw000: FIXME */
965 opj_event_msg_v2(p_manager, EVT_ERROR, "Number of channel description is equal to zero in CDEF box.\n");
969 cdef_info = (opj_jp2_cdef_info_t*) opj_malloc(l_value * sizeof(opj_jp2_cdef_info_t));
971 jp2->color.jp2_cdef = (opj_jp2_cdef_t*)opj_malloc(sizeof(opj_jp2_cdef_t));
972 jp2->color.jp2_cdef->info = cdef_info;
973 jp2->color.jp2_cdef->n = (OPJ_UINT16) l_value;
975 for(i = 0; i < jp2->color.jp2_cdef->n; ++i) {
976 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Cn^i */
977 p_cdef_header_data +=2;
978 cdef_info[i].cn = (OPJ_UINT16) l_value;
980 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Typ^i */
981 p_cdef_header_data +=2;
982 cdef_info[i].typ = (OPJ_UINT16) l_value;
984 opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Asoc^i */
985 p_cdef_header_data +=2;
986 cdef_info[i].asoc = (OPJ_UINT16) l_value;
992 opj_bool opj_jp2_read_colr( opj_jp2_v2_t *jp2,
993 OPJ_BYTE * p_colr_header_data,
994 OPJ_UINT32 p_colr_header_size,
995 opj_event_mgr_t * p_manager
1002 assert(p_colr_header_data != 00);
1003 assert(p_manager != 00);
1005 if (p_colr_header_size < 3) {
1006 opj_event_msg_v2(p_manager, EVT_ERROR, "Bad COLR header box (bad size)\n");
1010 /* Part 1, I.5.3.3 : 'A conforming JP2 reader shall ignore all Colour
1011 * Specification boxes after the first.'
1013 if(jp2->color.jp2_has_colr) {
1014 opj_event_msg_v2(p_manager, EVT_INFO, "A conforming JP2 reader shall ignore all Colour Specification boxes after the first, so we ignore this one.\n");
1015 p_colr_header_data += p_colr_header_size;
1019 opj_read_bytes(p_colr_header_data,&jp2->meth ,1); /* METH */
1020 ++p_colr_header_data;
1022 opj_read_bytes(p_colr_header_data,&jp2->precedence ,1); /* PRECEDENCE */
1023 ++p_colr_header_data;
1025 opj_read_bytes(p_colr_header_data,&jp2->approx ,1); /* APPROX */
1026 ++p_colr_header_data;
1028 if (jp2->meth == 1) {
1029 if (p_colr_header_size != 7) {
1030 opj_event_msg_v2(p_manager, EVT_ERROR, "Bad BPCC header box (bad size)\n");
1034 opj_read_bytes(p_colr_header_data,&jp2->enumcs ,4); /* EnumCS */
1036 else if (jp2->meth == 2) {
1038 int it_icc_value = 0;
1039 int icc_len = p_colr_header_size - 3;
1041 jp2->color.icc_profile_len = icc_len;
1042 jp2->color.icc_profile_buf = (unsigned char*) opj_malloc(icc_len);
1044 memset(jp2->color.icc_profile_buf, 0, icc_len * sizeof(unsigned char));
1046 for (it_icc_value = 0; it_icc_value < icc_len; ++it_icc_value)
1048 opj_read_bytes(p_colr_header_data,&l_value,1); /* icc values */
1049 ++p_colr_header_data;
1050 jp2->color.icc_profile_buf[it_icc_value] = (OPJ_BYTE) l_value;
1055 opj_event_msg_v2(p_manager, EVT_INFO, "COLR BOX meth value is not a regular value (%d), so we will skip the fields following the approx field.\n", jp2->meth);
1057 jp2->color.jp2_has_colr = 1;
1062 opj_bool opj_jp2_decode(opj_jp2_v2_t *jp2,
1063 opj_stream_private_t *p_stream,
1064 opj_image_t* p_image,
1065 opj_event_mgr_t * p_manager)
1071 if( ! opj_j2k_decode(jp2->j2k, p_stream, p_image, p_manager) ) {
1072 opj_event_msg_v2(p_manager, EVT_ERROR, "Failed to decode the codestream in the JP2 file\n");
1076 if (!jp2->ignore_pclr_cmap_cdef){
1078 /* Set Image Color Space */
1079 if (jp2->enumcs == 16)
1080 p_image->color_space = CLRSPC_SRGB;
1081 else if (jp2->enumcs == 17)
1082 p_image->color_space = CLRSPC_GRAY;
1083 else if (jp2->enumcs == 18)
1084 p_image->color_space = CLRSPC_SYCC;
1086 p_image->color_space = CLRSPC_UNKNOWN;
1088 /* Apply the color space if needed */
1089 if(jp2->color.jp2_cdef) {
1090 opj_jp2_apply_cdef(p_image, &(jp2->color));
1093 if(jp2->color.jp2_pclr) {
1094 /* Part 1, I.5.3.4: Either both or none : */
1095 if( !jp2->color.jp2_pclr->cmap)
1096 opj_jp2_free_pclr(&(jp2->color));
1098 opj_jp2_apply_pclr(p_image, &(jp2->color));
1101 if(jp2->color.icc_profile_buf) {
1102 p_image->icc_profile_buf = jp2->color.icc_profile_buf;
1103 p_image->icc_profile_len = jp2->color.icc_profile_len;
1104 jp2->color.icc_profile_buf = NULL;
1111 opj_bool OPJ_CALLCONV opj_jp2_write_jp2h(opj_jp2_v2_t *jp2,
1112 opj_stream_private_t *stream,
1113 opj_event_mgr_t * p_manager
1116 opj_jp2_img_header_writer_handler_t l_writers [3];
1117 opj_jp2_img_header_writer_handler_t * l_current_writer;
1120 /* size of data for super box*/
1121 int l_jp2h_size = 8;
1122 opj_bool l_result = OPJ_TRUE;
1124 /* to store the data of the super box */
1125 unsigned char l_jp2h_data [8];
1128 assert(stream != 00);
1130 assert(p_manager != 00);
1132 memset(l_writers,0,sizeof(l_writers));
1134 if (jp2->bpc == 255) {
1136 l_writers[0].handler = opj_jp2_write_ihdr;
1137 l_writers[1].handler = opj_jp2_write_bpcc;
1138 l_writers[2].handler = opj_jp2_write_colr;
1142 l_writers[0].handler = opj_jp2_write_ihdr;
1143 l_writers[1].handler = opj_jp2_write_colr;
1146 /* write box header */
1147 /* write JP2H type */
1148 opj_write_bytes(l_jp2h_data+4,JP2_JP2H,4);
1150 l_current_writer = l_writers;
1151 for (i=0;i<l_nb_pass;++i) {
1152 l_current_writer->m_data = l_current_writer->handler(jp2,&(l_current_writer->m_size));
1153 if (l_current_writer->m_data == 00) {
1154 opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory to hold JP2 Header data\n");
1155 l_result = OPJ_FALSE;
1159 l_jp2h_size += l_current_writer->m_size;
1164 l_current_writer = l_writers;
1165 for (i=0;i<l_nb_pass;++i) {
1166 if (l_current_writer->m_data != 00) {
1167 opj_free(l_current_writer->m_data );
1175 /* write super box size */
1176 opj_write_bytes(l_jp2h_data,l_jp2h_size,4);
1178 /* write super box data on stream */
1179 if (opj_stream_write_data(stream,l_jp2h_data,8,p_manager) != 8) {
1180 opj_event_msg_v2(p_manager, EVT_ERROR, "Stream error while writing JP2 Header box\n");
1181 l_result = OPJ_FALSE;
1185 l_current_writer = l_writers;
1186 for (i=0;i<l_nb_pass;++i) {
1187 if (opj_stream_write_data(stream,l_current_writer->m_data,l_current_writer->m_size,p_manager) != l_current_writer->m_size) {
1188 opj_event_msg_v2(p_manager, EVT_ERROR, "Stream error while writing JP2 Header box\n");
1189 l_result = OPJ_FALSE;
1196 l_current_writer = l_writers;
1199 for (i=0;i<l_nb_pass;++i) {
1200 if (l_current_writer->m_data != 00) {
1201 opj_free(l_current_writer->m_data );
1209 opj_bool opj_jp2_write_ftyp(opj_jp2_v2_t *jp2,
1210 opj_stream_private_t *cio,
1211 opj_event_mgr_t * p_manager )
1214 unsigned int l_ftyp_size = 16 + 4 * jp2->numcl;
1215 unsigned char * l_ftyp_data, * l_current_data_ptr;
1221 assert(p_manager != 00);
1223 l_ftyp_data = (unsigned char *) opj_malloc(l_ftyp_size);
1225 if (l_ftyp_data == 00) {
1226 opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory to handle ftyp data\n");
1230 memset(l_ftyp_data,0,l_ftyp_size);
1232 l_current_data_ptr = l_ftyp_data;
1234 opj_write_bytes(l_current_data_ptr, l_ftyp_size,4); /* box size */
1235 l_current_data_ptr += 4;
1237 opj_write_bytes(l_current_data_ptr, JP2_FTYP,4); /* FTYP */
1238 l_current_data_ptr += 4;
1240 opj_write_bytes(l_current_data_ptr, jp2->brand,4); /* BR */
1241 l_current_data_ptr += 4;
1243 opj_write_bytes(l_current_data_ptr, jp2->minversion,4); /* MinV */
1244 l_current_data_ptr += 4;
1246 for (i = 0; i < jp2->numcl; i++) {
1247 opj_write_bytes(l_current_data_ptr, jp2->cl[i],4); /* CL */
1250 l_result = (opj_stream_write_data(cio,l_ftyp_data,l_ftyp_size,p_manager) == l_ftyp_size);
1253 opj_event_msg_v2(p_manager, EVT_ERROR, "Error while writing ftyp data to stream\n");
1256 opj_free(l_ftyp_data);
1261 opj_bool opj_jp2_write_jp2c(opj_jp2_v2_t *jp2,
1262 opj_stream_private_t *cio,
1263 opj_event_mgr_t * p_manager )
1265 OPJ_OFF_T j2k_codestream_exit;
1266 OPJ_BYTE l_data_header [8];
1271 assert(p_manager != 00);
1272 assert(opj_stream_has_seek(cio));
1274 j2k_codestream_exit = opj_stream_tell(cio);
1275 opj_write_bytes(l_data_header,
1276 (OPJ_UINT32) (j2k_codestream_exit - jp2->j2k_codestream_offset),
1277 4); /* size of codestream */
1278 opj_write_bytes(l_data_header + 4,JP2_JP2C,4); /* JP2C */
1280 if (! opj_stream_seek(cio,jp2->j2k_codestream_offset,p_manager)) {
1281 opj_event_msg_v2(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
1285 if (opj_stream_write_data(cio,l_data_header,8,p_manager) != 8) {
1286 opj_event_msg_v2(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
1290 if (! opj_stream_seek(cio,j2k_codestream_exit,p_manager)) {
1291 opj_event_msg_v2(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
1298 opj_bool opj_jp2_write_jp( opj_jp2_v2_t *jp2,
1299 opj_stream_private_t *cio,
1300 opj_event_mgr_t * p_manager )
1302 /* 12 bytes will be read */
1303 unsigned char l_signature_data [12];
1308 assert(p_manager != 00);
1310 /* write box length */
1311 opj_write_bytes(l_signature_data,12,4);
1312 /* writes box type */
1313 opj_write_bytes(l_signature_data+4,JP2_JP,4);
1314 /* writes magic number*/
1315 opj_write_bytes(l_signature_data+8,0x0d0a870a,4);
1317 if (opj_stream_write_data(cio,l_signature_data,12,p_manager) != 12) {
1324 /* ----------------------------------------------------------------------- */
1325 /* JP2 decoder interface */
1326 /* ----------------------------------------------------------------------- */
1328 void opj_jp2_setup_decoder(opj_jp2_v2_t *jp2, opj_dparameters_t *parameters)
1330 /* setup the J2K codec */
1331 opj_j2k_setup_decoder(jp2->j2k, parameters);
1333 /* further JP2 initializations go here */
1334 jp2->color.jp2_has_colr = 0;
1335 jp2->ignore_pclr_cmap_cdef = parameters->flags & OPJ_DPARAMETERS_IGNORE_PCLR_CMAP_CDEF_FLAG;
1338 /* ----------------------------------------------------------------------- */
1339 /* JP2 encoder interface */
1340 /* ----------------------------------------------------------------------- */
1342 void OPJ_CALLCONV opj_jp2_setup_encoder( opj_jp2_v2_t *jp2,
1343 opj_cparameters_t *parameters,
1345 opj_event_mgr_t * p_manager)
1350 if(!jp2 || !parameters || !image)
1353 /* setup the J2K codec */
1354 /* ------------------- */
1356 /* Check if number of components respects standard */
1357 if (image->numcomps < 1 || image->numcomps > 16384) {
1358 opj_event_msg_v2(p_manager, EVT_ERROR, "Invalid number of components specified while setting up JP2 encoder\n");
1362 opj_j2k_setup_encoder(jp2->j2k, parameters, image, p_manager );
1364 /* setup the JP2 codec */
1365 /* ------------------- */
1369 jp2->brand = JP2_JP2; /* BR */
1370 jp2->minversion = 0; /* MinV */
1372 jp2->cl = (unsigned int*) opj_malloc(jp2->numcl * sizeof(unsigned int));
1373 jp2->cl[0] = JP2_JP2; /* CL0 : JP2 */
1375 /* Image Header box */
1377 jp2->numcomps = image->numcomps; /* NC */
1378 jp2->comps = (opj_jp2_comps_t*) opj_malloc(jp2->numcomps * sizeof(opj_jp2_comps_t));
1379 jp2->h = image->y1 - image->y0; /* HEIGHT */
1380 jp2->w = image->x1 - image->x0; /* WIDTH */
1382 depth_0 = image->comps[0].prec - 1;
1383 sign = image->comps[0].sgnd;
1384 jp2->bpc = depth_0 + (sign << 7);
1385 for (i = 1; i < image->numcomps; i++) {
1386 int depth = image->comps[i].prec - 1;
1387 sign = image->comps[i].sgnd;
1388 if (depth_0 != depth)
1391 jp2->C = 7; /* C : Always 7 */
1392 jp2->UnkC = 0; /* UnkC, colorspace specified in colr box */
1393 jp2->IPR = 0; /* IPR, no intellectual property */
1395 /* BitsPerComponent box */
1396 for (i = 0; i < image->numcomps; i++) {
1397 jp2->comps[i].bpcc = image->comps[i].prec - 1 + (image->comps[i].sgnd << 7);
1400 /* Colour Specification box */
1401 if ((image->numcomps == 1 || image->numcomps == 3) && (jp2->bpc != 255)) {
1402 jp2->meth = 1; /* METH: Enumerated colourspace */
1404 jp2->meth = 2; /* METH: Restricted ICC profile */
1406 if (jp2->meth == 1) {
1407 if (image->color_space == 1)
1408 jp2->enumcs = 16; /* sRGB as defined by IEC 61966-2-1 */
1409 else if (image->color_space == 2)
1410 jp2->enumcs = 17; /* greyscale */
1411 else if (image->color_space == 3)
1412 jp2->enumcs = 18; /* YUV */
1414 jp2->enumcs = 0; /* PROFILE (??) */
1416 jp2->precedence = 0; /* PRECEDENCE */
1417 jp2->approx = 0; /* APPROX */
1420 opj_bool OPJ_CALLCONV opj_jp2_encode(opj_jp2_v2_t *jp2,
1421 opj_stream_private_t *stream,
1422 opj_event_mgr_t * p_manager)
1424 return opj_j2k_encode_v2(jp2->j2k, stream, p_manager);
1427 opj_bool opj_jp2_end_decompress(opj_jp2_v2_t *jp2,
1428 opj_stream_private_t *cio,
1429 opj_event_mgr_t * p_manager
1435 assert(p_manager != 00);
1437 /* customization of the end encoding */
1438 opj_jp2_setup_end_header_reading(jp2);
1441 if (! opj_jp2_exec (jp2,jp2->m_procedure_list,cio,p_manager)) {
1445 return opj_j2k_end_decompress(jp2->j2k, cio, p_manager);
1448 opj_bool opj_jp2_end_compress( opj_jp2_v2_t *jp2,
1449 opj_stream_private_t *cio,
1450 opj_event_mgr_t * p_manager
1456 assert(p_manager != 00);
1458 /* customization of the end encoding */
1459 opj_jp2_setup_end_header_writing(jp2);
1461 if (! opj_j2k_end_compress(jp2->j2k,cio,p_manager)) {
1466 return opj_jp2_exec(jp2,jp2->m_procedure_list,cio,p_manager);
1469 void opj_jp2_setup_end_header_writing (opj_jp2_v2_t *jp2)
1474 opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_write_jp2c );
1475 /* DEVELOPER CORNER, add your custom procedures */
1478 void opj_jp2_setup_end_header_reading (opj_jp2_v2_t *jp2)
1482 opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_read_header_procedure );
1483 /* DEVELOPER CORNER, add your custom procedures */
1486 opj_bool opj_jp2_default_validation ( opj_jp2_v2_t * jp2,
1487 opj_stream_private_t *cio,
1488 opj_event_mgr_t * p_manager
1491 opj_bool l_is_valid = OPJ_TRUE;
1497 assert(p_manager != 00);
1499 /* JPEG2000 codec validation */
1502 /* STATE checking */
1503 /* make sure the state is at 0 */
1504 l_is_valid &= (jp2->jp2_state == JP2_STATE_NONE);
1506 /* make sure not reading a jp2h ???? WEIRD */
1507 l_is_valid &= (jp2->jp2_img_state == JP2_IMG_STATE_NONE);
1509 /* POINTER validation */
1510 /* make sure a j2k codec is present */
1511 l_is_valid &= (jp2->j2k != 00);
1513 /* make sure a procedure list is present */
1514 l_is_valid &= (jp2->m_procedure_list != 00);
1516 /* make sure a validation list is present */
1517 l_is_valid &= (jp2->m_validation_list != 00);
1519 /* PARAMETER VALIDATION */
1520 /* number of components */
1521 l_is_valid &= (jp2->numcl > 0);
1523 l_is_valid &= (jp2->h > 0);
1525 l_is_valid &= (jp2->w > 0);
1527 for (i = 0; i < jp2->numcomps; ++i) {
1528 l_is_valid &= (jp2->comps[i].bpcc > 0);
1532 l_is_valid &= ((jp2->meth > 0) && (jp2->meth < 3));
1534 /* stream validation */
1535 /* back and forth is needed */
1536 l_is_valid &= opj_stream_has_seek(cio);
1541 opj_bool opj_jp2_read_header_procedure( opj_jp2_v2_t *jp2,
1542 opj_stream_private_t *stream,
1543 opj_event_mgr_t * p_manager
1547 OPJ_UINT32 l_nb_bytes_read;
1548 const opj_jp2_header_handler_t * l_current_handler;
1549 OPJ_UINT32 l_last_data_size = BOX_SIZE;
1550 OPJ_UINT32 l_current_data_size;
1551 unsigned char * l_current_data = 00;
1554 assert(stream != 00);
1556 assert(p_manager != 00);
1558 l_current_data = (unsigned char*)opj_malloc(l_last_data_size);
1560 if (l_current_data == 00) {
1561 opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory to handle jpeg2000 file header\n");
1564 memset(l_current_data, 0 , l_last_data_size);
1566 while (opj_jp2_read_boxhdr(&box,&l_nb_bytes_read,stream,p_manager)) {
1567 /* is it the codestream box ? */
1568 if (box.type == JP2_JP2C) {
1569 if (jp2->jp2_state & JP2_STATE_HEADER) {
1570 jp2->jp2_state |= JP2_STATE_CODESTREAM;
1571 opj_free(l_current_data);
1575 opj_event_msg_v2(p_manager, EVT_ERROR, "bad placed jpeg codestream\n");
1576 opj_free(l_current_data);
1580 else if (box.length == 0) {
1581 opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
1582 opj_free(l_current_data);
1586 l_current_handler = opj_jp2_find_handler(box.type);
1587 l_current_data_size = box.length - l_nb_bytes_read;
1589 if (l_current_handler != 00) {
1590 if (l_current_data_size > l_last_data_size) {
1591 unsigned char* new_current_data = (unsigned char*)opj_realloc(l_current_data,l_current_data_size);
1592 if (!l_current_data){
1593 opj_free(l_current_data);
1594 opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory to handle jpeg2000 box\n");
1597 l_current_data = new_current_data;
1598 l_last_data_size = l_current_data_size;
1601 l_nb_bytes_read = opj_stream_read_data(stream,l_current_data,l_current_data_size,p_manager);
1602 if (l_nb_bytes_read != l_current_data_size) {
1603 opj_event_msg_v2(p_manager, EVT_ERROR, "Problem with reading JPEG2000 box, stream error\n");
1604 /* TODO: LH: why nothing is freed here (as
1605 all other returns imply a free, even
1606 in the nominal case)? */
1610 if (! l_current_handler->handler(jp2,l_current_data,l_current_data_size,p_manager)) {
1611 opj_free(l_current_data);
1616 jp2->jp2_state |= JP2_STATE_UNKNOWN;
1617 if (opj_stream_skip(stream,l_current_data_size,p_manager) != l_current_data_size) {
1618 opj_event_msg_v2(p_manager, EVT_ERROR, "Problem with skipping JPEG2000 box, stream error\n");
1619 opj_free(l_current_data);
1625 opj_free(l_current_data);
1631 * Excutes the given procedures on the given codec.
1633 * @param p_procedure_list the list of procedures to execute
1634 * @param jp2 the jpeg2000 file codec to execute the procedures on.
1635 * @param stream the stream to execute the procedures on.
1636 * @param p_manager the user manager.
1638 * @return true if all the procedures were successfully executed.
1640 static opj_bool opj_jp2_exec ( opj_jp2_v2_t * jp2,
1641 opj_procedure_list_t * p_procedure_list,
1642 opj_stream_private_t *stream,
1643 opj_event_mgr_t * p_manager
1647 opj_bool (** l_procedure) (opj_jp2_v2_t * jp2, opj_stream_private_t *, opj_event_mgr_t *) = 00;
1648 opj_bool l_result = OPJ_TRUE;
1649 OPJ_UINT32 l_nb_proc, i;
1652 assert(p_procedure_list != 00);
1654 assert(stream != 00);
1655 assert(p_manager != 00);
1657 l_nb_proc = opj_procedure_list_get_nb_procedures(p_procedure_list);
1658 l_procedure = (opj_bool (**) (opj_jp2_v2_t * jp2, opj_stream_private_t *, opj_event_mgr_t *)) opj_procedure_list_get_first_procedure(p_procedure_list);
1660 for (i=0;i<l_nb_proc;++i) {
1661 l_result = l_result && (*l_procedure) (jp2,stream,p_manager);
1665 /* and clear the procedure list at the end. */
1666 opj_procedure_list_clear(p_procedure_list);
1670 opj_bool opj_jp2_start_compress(opj_jp2_v2_t *jp2,
1671 opj_stream_private_t *stream,
1672 opj_image_t * p_image,
1673 opj_event_mgr_t * p_manager
1678 assert(stream != 00);
1679 assert(p_manager != 00);
1681 /* customization of the validation */
1682 opj_jp2_setup_encoding_validation (jp2);
1684 /* validation of the parameters codec */
1685 if (! opj_jp2_exec(jp2,jp2->m_validation_list,stream,p_manager)) {
1689 /* customization of the encoding */
1690 opj_jp2_setup_header_writing(jp2);
1693 if (! opj_jp2_exec (jp2,jp2->m_procedure_list,stream,p_manager)) {
1697 return opj_j2k_start_compress(jp2->j2k,stream,p_image,p_manager);
1700 const opj_jp2_header_handler_t * opj_jp2_find_handler (OPJ_UINT32 p_id)
1702 OPJ_UINT32 i, l_handler_size = sizeof(jp2_header) / sizeof(opj_jp2_header_handler_t);
1704 for (i=0;i<l_handler_size;++i) {
1705 if (jp2_header[i].id == p_id) {
1706 return &jp2_header[i];
1713 * Finds the image execution function related to the given box id.
1715 * @param p_id the id of the handler to fetch.
1717 * @return the given handler or 00 if it could not be found.
1719 static const opj_jp2_header_handler_t * opj_jp2_img_find_handler (OPJ_UINT32 p_id)
1721 OPJ_UINT32 i, l_handler_size = sizeof(jp2_img_header) / sizeof(opj_jp2_header_handler_t);
1722 for (i=0;i<l_handler_size;++i)
1724 if (jp2_img_header[i].id == p_id) {
1725 return &jp2_img_header[i];
1733 * Reads a jpeg2000 file signature box.
1735 * @param p_header_data the data contained in the signature box.
1736 * @param jp2 the jpeg2000 file codec.
1737 * @param p_header_size the size of the data contained in the signature box.
1738 * @param p_manager the user event manager.
1740 * @return true if the file signature box is valid.
1742 static opj_bool opj_jp2_read_jp(opj_jp2_v2_t *jp2,
1743 OPJ_BYTE * p_header_data,
1744 OPJ_UINT32 p_header_size,
1745 opj_event_mgr_t * p_manager
1749 unsigned int l_magic_number;
1752 assert(p_header_data != 00);
1754 assert(p_manager != 00);
1756 if (jp2->jp2_state != JP2_STATE_NONE) {
1757 opj_event_msg_v2(p_manager, EVT_ERROR, "The signature box must be the first box in the file.\n");
1761 /* assure length of data is correct (4 -> magic number) */
1762 if (p_header_size != 4) {
1763 opj_event_msg_v2(p_manager, EVT_ERROR, "Error with JP signature Box size\n");
1767 /* rearrange data */
1768 opj_read_bytes(p_header_data,&l_magic_number,4);
1769 if (l_magic_number != 0x0d0a870a ) {
1770 opj_event_msg_v2(p_manager, EVT_ERROR, "Error with JP Signature : bad magic number\n");
1774 jp2->jp2_state |= JP2_STATE_SIGNATURE;
1780 * Reads a a FTYP box - File type box
1782 * @param p_header_data the data contained in the FTYP box.
1783 * @param jp2 the jpeg2000 file codec.
1784 * @param p_header_size the size of the data contained in the FTYP box.
1785 * @param p_manager the user event manager.
1787 * @return true if the FTYP box is valid.
1789 static opj_bool opj_jp2_read_ftyp( opj_jp2_v2_t *jp2,
1790 OPJ_BYTE * p_header_data,
1791 OPJ_UINT32 p_header_size,
1792 opj_event_mgr_t * p_manager
1795 OPJ_UINT32 i, l_remaining_bytes;
1798 assert(p_header_data != 00);
1800 assert(p_manager != 00);
1802 if (jp2->jp2_state != JP2_STATE_SIGNATURE) {
1803 opj_event_msg_v2(p_manager, EVT_ERROR, "The ftyp box must be the second box in the file.\n");
1807 /* assure length of data is correct */
1808 if (p_header_size < 8) {
1809 opj_event_msg_v2(p_manager, EVT_ERROR, "Error with FTYP signature Box size\n");
1813 opj_read_bytes(p_header_data,&jp2->brand,4); /* BR */
1816 opj_read_bytes(p_header_data,&jp2->minversion,4); /* MinV */
1819 l_remaining_bytes = p_header_size - 8;
1821 /* the number of remaining bytes should be a multiple of 4 */
1822 if ((l_remaining_bytes & 0x3) != 0) {
1823 opj_event_msg_v2(p_manager, EVT_ERROR, "Error with FTYP signature Box size\n");
1828 jp2->numcl = l_remaining_bytes >> 2;
1830 jp2->cl = (unsigned int *) opj_malloc(jp2->numcl * sizeof(unsigned int));
1831 if (jp2->cl == 00) {
1832 opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory with FTYP Box\n");
1835 memset(jp2->cl,0,jp2->numcl * sizeof(unsigned int));
1838 for (i = 0; i < jp2->numcl; ++i)
1840 opj_read_bytes(p_header_data,&jp2->cl[i],4); /* CLi */
1844 jp2->jp2_state |= JP2_STATE_FILE_TYPE;
1849 opj_bool opj_jp2_skip_jp2c( opj_jp2_v2_t *jp2,
1850 opj_stream_private_t *stream,
1851 opj_event_mgr_t * p_manager )
1855 assert(stream != 00);
1856 assert(p_manager != 00);
1858 jp2->j2k_codestream_offset = opj_stream_tell(stream);
1860 if (opj_stream_skip(stream,8,p_manager) != 8) {
1868 * Reads the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box).
1870 * @param p_header_data the data contained in the file header box.
1871 * @param jp2 the jpeg2000 file codec.
1872 * @param p_header_size the size of the data contained in the file header box.
1873 * @param p_manager the user event manager.
1875 * @return true if the JP2 Header box was successfully reconized.
1877 static opj_bool opj_jp2_read_jp2h( opj_jp2_v2_t *jp2,
1878 OPJ_BYTE *p_header_data,
1879 OPJ_UINT32 p_header_size,
1880 opj_event_mgr_t * p_manager
1883 OPJ_UINT32 l_box_size=0, l_current_data_size = 0;
1885 const opj_jp2_header_handler_t * l_current_handler;
1888 assert(p_header_data != 00);
1890 assert(p_manager != 00);
1892 /* make sure the box is well placed */
1893 if ((jp2->jp2_state & JP2_STATE_FILE_TYPE) != JP2_STATE_FILE_TYPE ) {
1894 opj_event_msg_v2(p_manager, EVT_ERROR, "The box must be the first box in the file.\n");
1898 jp2->jp2_img_state = JP2_IMG_STATE_NONE;
1900 /* iterate while remaining data */
1901 while (p_header_size > 0) {
1903 if (! opj_jp2_read_boxhdr_char(&box,p_header_data,&l_box_size,p_header_size, p_manager)) {
1904 opj_event_msg_v2(p_manager, EVT_ERROR, "Stream error while reading JP2 Header box\n");
1908 if (box.length > p_header_size) {
1909 opj_event_msg_v2(p_manager, EVT_ERROR, "Stream error while reading JP2 Header box: box length is inconsistent.\n");
1913 l_current_handler = opj_jp2_img_find_handler(box.type);
1914 l_current_data_size = box.length - l_box_size;
1915 p_header_data += l_box_size;
1917 if (l_current_handler != 00) {
1918 if (! l_current_handler->handler(jp2,p_header_data,l_current_data_size,p_manager)) {
1923 jp2->jp2_img_state |= JP2_IMG_STATE_UNKNOWN;
1926 p_header_data += l_current_data_size;
1927 p_header_size -= box.length;
1930 jp2->jp2_state |= JP2_STATE_HEADER;
1935 opj_bool opj_jp2_read_boxhdr_char( opj_jp2_box_t *box,
1937 OPJ_UINT32 * p_number_bytes_read,
1938 OPJ_UINT32 p_box_max_size,
1939 opj_event_mgr_t * p_manager
1945 assert(p_data != 00);
1947 assert(p_number_bytes_read != 00);
1948 assert(p_manager != 00);
1950 if (p_box_max_size < 8) {
1951 opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot handle box of less than 8 bytes\n");
1955 /* process read data */
1956 opj_read_bytes(p_data, &l_value, 4);
1958 box->length = (OPJ_INT32)(l_value);
1960 opj_read_bytes(p_data, &l_value, 4);
1962 box->type = (OPJ_INT32)(l_value);
1964 *p_number_bytes_read = 8;
1966 /* do we have a "special very large box ?" */
1967 /* read then the XLBox */
1968 if (box->length == 1) {
1969 unsigned int l_xl_part_size;
1971 if (p_box_max_size < 16) {
1972 opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot handle XL box of less than 16 bytes\n");
1976 opj_read_bytes(p_data,&l_xl_part_size, 4);
1978 *p_number_bytes_read += 4;
1980 if (l_xl_part_size != 0) {
1981 opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot handle box sizes higher than 2^32\n");
1985 opj_read_bytes(p_data, &l_value, 4);
1986 *p_number_bytes_read += 4;
1987 box->length = (OPJ_INT32)(l_value);
1989 if (box->length == 0) {
1990 opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
1994 else if (box->length == 0) {
1995 opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
2002 opj_bool opj_jp2_read_header( opj_stream_private_t *p_stream,
2004 opj_image_t ** p_image,
2005 opj_event_mgr_t * p_manager
2010 assert(p_stream != 00);
2011 assert(p_manager != 00);
2013 /* customization of the validation */
2014 opj_jp2_setup_decoding_validation (jp2);
2016 /* customization of the encoding */
2017 opj_jp2_setup_header_reading(jp2);
2019 /* validation of the parameters codec */
2020 if (! opj_jp2_exec(jp2,jp2->m_validation_list,p_stream,p_manager)) {
2025 if (! opj_jp2_exec (jp2,jp2->m_procedure_list,p_stream,p_manager)) {
2029 return opj_j2k_read_header( p_stream,
2035 void opj_jp2_setup_encoding_validation (opj_jp2_v2_t *jp2)
2040 opj_procedure_list_add_procedure(jp2->m_validation_list, (opj_procedure)opj_jp2_default_validation);
2041 /* DEVELOPER CORNER, add your custom validation procedure */
2044 void opj_jp2_setup_decoding_validation (opj_jp2_v2_t *jp2)
2048 /* DEVELOPER CORNER, add your custom validation procedure */
2051 void opj_jp2_setup_header_writing (opj_jp2_v2_t *jp2)
2056 opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_write_jp );
2057 opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_write_ftyp );
2058 opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_write_jp2h );
2059 opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_skip_jp2c );
2061 /* DEVELOPER CORNER, insert your custom procedures */
2065 void opj_jp2_setup_header_reading (opj_jp2_v2_t *jp2)
2070 opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_read_header_procedure );
2071 /* DEVELOPER CORNER, add your custom procedures */
2074 opj_bool opj_jp2_read_tile_header ( opj_jp2_v2_t * p_jp2,
2075 OPJ_UINT32 * p_tile_index,
2076 OPJ_UINT32 * p_data_size,
2077 OPJ_INT32 * p_tile_x0,
2078 OPJ_INT32 * p_tile_y0,
2079 OPJ_INT32 * p_tile_x1,
2080 OPJ_INT32 * p_tile_y1,
2081 OPJ_UINT32 * p_nb_comps,
2083 opj_stream_private_t *p_stream,
2084 opj_event_mgr_t * p_manager
2087 return opj_j2k_read_tile_header(p_jp2->j2k,
2090 p_tile_x0, p_tile_y0,
2091 p_tile_x1, p_tile_y1,
2098 opj_bool OPJ_CALLCONV opj_jp2_write_tile ( opj_jp2_v2_t *p_jp2,
2099 OPJ_UINT32 p_tile_index,
2101 OPJ_UINT32 p_data_size,
2102 opj_stream_private_t *p_stream,
2103 opj_event_mgr_t * p_manager
2107 return opj_j2k_write_tile (p_jp2->j2k,p_tile_index,p_data,p_data_size,p_stream,p_manager);
2110 opj_bool opj_jp2_decode_tile ( opj_jp2_v2_t * p_jp2,
2111 OPJ_UINT32 p_tile_index,
2113 OPJ_UINT32 p_data_size,
2114 opj_stream_private_t *p_stream,
2115 opj_event_mgr_t * p_manager
2118 return opj_j2k_decode_tile (p_jp2->j2k,p_tile_index,p_data,p_data_size,p_stream,p_manager);
2121 void OPJ_CALLCONV opj_jp2_destroy(opj_jp2_v2_t *jp2)
2124 /* destroy the J2K codec */
2125 opj_j2k_destroy(jp2->j2k);
2129 opj_free(jp2->comps);
2138 if (jp2->color.icc_profile_buf) {
2139 opj_free(jp2->color.icc_profile_buf);
2140 jp2->color.icc_profile_buf = 00;
2143 if (jp2->color.jp2_cdef) {
2144 if (jp2->color.jp2_cdef->info) {
2145 opj_free(jp2->color.jp2_cdef->info);
2146 jp2->color.jp2_cdef->info = NULL;
2149 opj_free(jp2->color.jp2_cdef);
2150 jp2->color.jp2_cdef = 00;
2153 if (jp2->color.jp2_pclr) {
2154 if (jp2->color.jp2_pclr->cmap) {
2155 opj_free(jp2->color.jp2_pclr->cmap);
2156 jp2->color.jp2_pclr->cmap = NULL;
2158 if (jp2->color.jp2_pclr->channel_sign) {
2159 opj_free(jp2->color.jp2_pclr->channel_sign);
2160 jp2->color.jp2_pclr->channel_sign = NULL;
2162 if (jp2->color.jp2_pclr->channel_size) {
2163 opj_free(jp2->color.jp2_pclr->channel_size);
2164 jp2->color.jp2_pclr->channel_size = NULL;
2166 if (jp2->color.jp2_pclr->entries) {
2167 opj_free(jp2->color.jp2_pclr->entries);
2168 jp2->color.jp2_pclr->entries = NULL;
2171 opj_free(jp2->color.jp2_pclr);
2172 jp2->color.jp2_pclr = 00;
2175 if (jp2->m_validation_list) {
2176 opj_procedure_list_destroy(jp2->m_validation_list);
2177 jp2->m_validation_list = 00;
2180 if (jp2->m_procedure_list) {
2181 opj_procedure_list_destroy(jp2->m_procedure_list);
2182 jp2->m_procedure_list = 00;
2189 opj_bool opj_jp2_set_decode_area( opj_jp2_v2_t *p_jp2,
2190 opj_image_t* p_image,
2191 OPJ_INT32 p_start_x, OPJ_INT32 p_start_y,
2192 OPJ_INT32 p_end_x, OPJ_INT32 p_end_y,
2193 opj_event_mgr_t * p_manager
2196 return opj_j2k_set_decode_area(p_jp2->j2k, p_image, p_start_x, p_start_y, p_end_x, p_end_y, p_manager);
2199 opj_bool opj_jp2_get_tile( opj_jp2_v2_t *p_jp2,
2200 opj_stream_private_t *p_stream,
2201 opj_image_t* p_image,
2202 opj_event_mgr_t * p_manager,
2203 OPJ_UINT32 tile_index
2209 opj_event_msg_v2(p_manager, EVT_WARNING, "JP2 box which are after the codestream will not be read by this function.\n");
2211 if (! opj_j2k_get_tile(p_jp2->j2k, p_stream, p_image, p_manager, tile_index) ){
2212 opj_event_msg_v2(p_manager, EVT_ERROR, "Failed to decode the codestream in the JP2 file\n");
2216 /* Set Image Color Space */
2217 if (p_jp2->enumcs == 16)
2218 p_image->color_space = CLRSPC_SRGB;
2219 else if (p_jp2->enumcs == 17)
2220 p_image->color_space = CLRSPC_GRAY;
2221 else if (p_jp2->enumcs == 18)
2222 p_image->color_space = CLRSPC_SYCC;
2224 p_image->color_space = CLRSPC_UNKNOWN;
2226 /* Apply the color space if needed */
2227 if(p_jp2->color.jp2_cdef) {
2228 opj_jp2_apply_cdef(p_image, &(p_jp2->color));
2231 if(p_jp2->color.jp2_pclr) {
2232 /* Part 1, I.5.3.4: Either both or none : */
2233 if( !p_jp2->color.jp2_pclr->cmap)
2234 opj_jp2_free_pclr(&(p_jp2->color));
2236 opj_jp2_apply_pclr(p_image, &(p_jp2->color));
2239 if(p_jp2->color.icc_profile_buf) {
2240 p_image->icc_profile_buf = p_jp2->color.icc_profile_buf;
2241 p_image->icc_profile_len = p_jp2->color.icc_profile_len;
2242 p_jp2->color.icc_profile_buf = NULL;
2248 /* ----------------------------------------------------------------------- */
2249 /* JP2 encoder interface */
2250 /* ----------------------------------------------------------------------- */
2252 opj_jp2_v2_t* OPJ_CALLCONV opj_jp2_create(opj_bool p_is_decoder)
2254 opj_jp2_v2_t *jp2 = (opj_jp2_v2_t*)opj_malloc(sizeof(opj_jp2_v2_t));
2256 memset(jp2,0,sizeof(opj_jp2_v2_t));
2258 /* create the J2K codec */
2259 if (! p_is_decoder) {
2260 jp2->j2k = opj_j2k_create_compress();
2263 jp2->j2k = opj_j2k_create_decompress();
2266 if (jp2->j2k == 00) {
2267 opj_jp2_destroy(jp2);
2271 /* Color structure */
2272 jp2->color.icc_profile_buf = NULL;
2273 jp2->color.icc_profile_len = 0;
2274 jp2->color.jp2_cdef = NULL;
2275 jp2->color.jp2_pclr = NULL;
2276 jp2->color.jp2_has_colr = 0;
2278 /* validation list creation */
2279 jp2->m_validation_list = opj_procedure_list_create();
2280 if (! jp2->m_validation_list) {
2281 opj_jp2_destroy(jp2);
2285 /* execution list creation */
2286 jp2->m_procedure_list = opj_procedure_list_create();
2287 if (! jp2->m_procedure_list) {
2288 opj_jp2_destroy(jp2);
2296 void jp2_dump(opj_jp2_v2_t* p_jp2, OPJ_INT32 flag, FILE* out_stream)
2299 assert(p_jp2 != 00);
2301 j2k_dump(p_jp2->j2k,
2306 opj_codestream_index_t* jp2_get_cstr_index(opj_jp2_v2_t* p_jp2)
2308 return j2k_get_cstr_index(p_jp2->j2k);
2311 opj_codestream_info_v2_t* OPJ_CALLCONV jp2_get_cstr_info(opj_jp2_v2_t* p_jp2)
2313 return j2k_get_cstr_info(p_jp2->j2k);
2316 opj_bool opj_jp2_set_decoded_resolution_factor(opj_jp2_v2_t *p_jp2,
2317 OPJ_UINT32 res_factor,
2318 opj_event_mgr_t * p_manager)
2320 return opj_j2k_set_decoded_resolution_factor(p_jp2->j2k, res_factor, p_manager);