1 /*
2 * The copyright in this software is being made available under the 2-clauses
3 * BSD License, included below. This software may be subject to other third
4 * party and contributor rights, including patent rights, and no such rights
5 * are granted under this license.
6 *
7 * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
8 * Copyright (c) 2002-2014, Professor Benoit Macq
9 * Copyright (c) 2001-2003, David Janssens
10 * Copyright (c) 2002-2003, Yannick Verschueren
11 * Copyright (c) 2003-2007, Francois-Olivier Devaux
12 * Copyright (c) 2003-2014, Antonin Descampe
13 * Copyright (c) 2005, Herve Drolon, FreeImage Team
14 * Copyright (c) 2008, 2011-2012, Centre National d'Etudes Spatiales (CNES), FR
15 * Copyright (c) 2012, CS Systemes d'Information, France
16 * All rights reserved.
17 *
18 * Redistribution and use in source and binary forms, with or without
19 * modification, are permitted provided that the following conditions
20 * are met:
21 * 1. Redistributions of source code must retain the above copyright
22 * notice, this list of conditions and the following disclaimer.
23 * 2. Redistributions in binary form must reproduce the above copyright
24 * notice, this list of conditions and the following disclaimer in the
25 * documentation and/or other materials provided with the distribution.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
28 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
31 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
38 */
39
40 #include "opj_includes.h"
41
42 /** @defgroup T2 T2 - Implementation of a tier-2 coding */
43 /*@{*/
44
45 /** @name Local static functions */
46 /*@{*/
47
48 static void opj_t2_putcommacode(opj_bio_t *bio, OPJ_INT32 n);
49
50 static OPJ_UINT32 opj_t2_getcommacode(opj_bio_t *bio);
51 /**
52 Variable length code for signalling delta Zil (truncation point)
53 @param bio Bit Input/Output component
54 @param n delta Zil
55 */
56 static void opj_t2_putnumpasses(opj_bio_t *bio, OPJ_UINT32 n);
57 static OPJ_UINT32 opj_t2_getnumpasses(opj_bio_t *bio);
58
59 /**
60 Encode a packet of a tile to a destination buffer
61 @param tileno Number of the tile encoded
62 @param tile Tile for which to write the packets
63 @param tcp Tile coding parameters
64 @param pi Packet identity
65 @param dest Destination buffer
66 @param p_data_written FIXME DOC
67 @param len Length of the destination buffer
68 @param cstr_info Codestream information structure
69 @return
70 */
71 static OPJ_BOOL opj_t2_encode_packet( OPJ_UINT32 tileno,
72 opj_tcd_tile_t *tile,
73 opj_tcp_t *tcp,
74 opj_pi_iterator_t *pi,
75 OPJ_BYTE *dest,
76 OPJ_UINT32 * p_data_written,
77 OPJ_UINT32 len,
78 opj_codestream_info_t *cstr_info);
79
80 /**
81 Decode a packet of a tile from a source buffer
82 @param t2 T2 handle
83 @param tile Tile for which to write the packets
84 @param tcp Tile coding parameters
85 @param pi Packet identity
86 @param src Source buffer
87 @param data_read FIXME DOC
88 @param max_length FIXME DOC
89 @param pack_info Packet information
90
91 @return FIXME DOC
92 */
93 static OPJ_BOOL opj_t2_decode_packet( opj_t2_t* t2,
94 opj_tcd_tile_t *tile,
95 opj_tcp_t *tcp,
96 opj_pi_iterator_t *pi,
97 OPJ_BYTE *src,
98 OPJ_UINT32 * data_read,
99 OPJ_UINT32 max_length,
100 opj_packet_info_t *pack_info);
101
102 static OPJ_BOOL opj_t2_skip_packet( opj_t2_t* p_t2,
103 opj_tcd_tile_t *p_tile,
104 opj_tcp_t *p_tcp,
105 opj_pi_iterator_t *p_pi,
106 OPJ_BYTE *p_src,
107 OPJ_UINT32 * p_data_read,
108 OPJ_UINT32 p_max_length,
109 opj_packet_info_t *p_pack_info);
110
111 static OPJ_BOOL opj_t2_read_packet_header( opj_t2_t* p_t2,
112 opj_tcd_tile_t *p_tile,
113 opj_tcp_t *p_tcp,
114 opj_pi_iterator_t *p_pi,
115 OPJ_BOOL * p_is_data_present,
116 OPJ_BYTE *p_src_data,
117 OPJ_UINT32 * p_data_read,
118 OPJ_UINT32 p_max_length,
119 opj_packet_info_t *p_pack_info);
120
121 static OPJ_BOOL opj_t2_read_packet_data(opj_t2_t* p_t2,
122 opj_tcd_tile_t *p_tile,
123 opj_pi_iterator_t *p_pi,
124 OPJ_BYTE *p_src_data,
125 OPJ_UINT32 * p_data_read,
126 OPJ_UINT32 p_max_length,
127 opj_packet_info_t *pack_info);
128
129 static OPJ_BOOL opj_t2_skip_packet_data(opj_t2_t* p_t2,
130 opj_tcd_tile_t *p_tile,
131 opj_pi_iterator_t *p_pi,
132 OPJ_UINT32 * p_data_read,
133 OPJ_UINT32 p_max_length,
134 opj_packet_info_t *pack_info);
135
136 /**
137 @param cblk
138 @param index
139 @param cblksty
140 @param first
141 */
142 static OPJ_BOOL opj_t2_init_seg( opj_tcd_cblk_dec_t* cblk,
143 OPJ_UINT32 index,
144 OPJ_UINT32 cblksty,
145 OPJ_UINT32 first);
146
147 /*@}*/
148
149 /*@}*/
150
151 /* ----------------------------------------------------------------------- */
152
153 /* #define RESTART 0x04 */
opj_t2_putcommacode(opj_bio_t * bio,OPJ_INT32 n)154 static void opj_t2_putcommacode(opj_bio_t *bio, OPJ_INT32 n) {
155 while (--n >= 0) {
156 opj_bio_write(bio, 1, 1);
157 }
158 opj_bio_write(bio, 0, 1);
159 }
160
opj_t2_getcommacode(opj_bio_t * bio)161 OPJ_UINT32 opj_t2_getcommacode(opj_bio_t *bio)
162 {
163 OPJ_UINT32 n = 0;
164 while (opj_bio_read(bio, 1)) {
165 ++n;
166 }
167 return n;
168 }
169
opj_t2_putnumpasses(opj_bio_t * bio,OPJ_UINT32 n)170 void opj_t2_putnumpasses(opj_bio_t *bio, OPJ_UINT32 n) {
171 if (n == 1) {
172 opj_bio_write(bio, 0, 1);
173 } else if (n == 2) {
174 opj_bio_write(bio, 2, 2);
175 } else if (n <= 5) {
176 opj_bio_write(bio, 0xc | (n - 3), 4);
177 } else if (n <= 36) {
178 opj_bio_write(bio, 0x1e0 | (n - 6), 9);
179 } else if (n <= 164) {
180 opj_bio_write(bio, 0xff80 | (n - 37), 16);
181 }
182 }
183
opj_t2_getnumpasses(opj_bio_t * bio)184 OPJ_UINT32 opj_t2_getnumpasses(opj_bio_t *bio) {
185 OPJ_UINT32 n;
186 if (!opj_bio_read(bio, 1))
187 return 1;
188 if (!opj_bio_read(bio, 1))
189 return 2;
190 if ((n = opj_bio_read(bio, 2)) != 3)
191 return (3 + n);
192 if ((n = opj_bio_read(bio, 5)) != 31)
193 return (6 + n);
194 return (37 + opj_bio_read(bio, 7));
195 }
196
197 /* ----------------------------------------------------------------------- */
198
opj_t2_encode_packets(opj_t2_t * p_t2,OPJ_UINT32 p_tile_no,opj_tcd_tile_t * p_tile,OPJ_UINT32 p_maxlayers,OPJ_BYTE * p_dest,OPJ_UINT32 * p_data_written,OPJ_UINT32 p_max_len,opj_codestream_info_t * cstr_info,OPJ_UINT32 p_tp_num,OPJ_INT32 p_tp_pos,OPJ_UINT32 p_pino,J2K_T2_MODE p_t2_mode)199 OPJ_BOOL opj_t2_encode_packets( opj_t2_t* p_t2,
200 OPJ_UINT32 p_tile_no,
201 opj_tcd_tile_t *p_tile,
202 OPJ_UINT32 p_maxlayers,
203 OPJ_BYTE *p_dest,
204 OPJ_UINT32 * p_data_written,
205 OPJ_UINT32 p_max_len,
206 opj_codestream_info_t *cstr_info,
207 OPJ_UINT32 p_tp_num,
208 OPJ_INT32 p_tp_pos,
209 OPJ_UINT32 p_pino,
210 J2K_T2_MODE p_t2_mode)
211 {
212 OPJ_BYTE *l_current_data = p_dest;
213 OPJ_UINT32 l_nb_bytes = 0;
214 OPJ_UINT32 compno;
215 OPJ_UINT32 poc;
216 opj_pi_iterator_t *l_pi = 00;
217 opj_pi_iterator_t *l_current_pi = 00;
218 opj_image_t *l_image = p_t2->image;
219 opj_cp_t *l_cp = p_t2->cp;
220 opj_tcp_t *l_tcp = &l_cp->tcps[p_tile_no];
221 OPJ_UINT32 pocno = l_cp->m_specific_param.m_enc.m_cinema == OPJ_CINEMA4K_24? 2: 1;
222 OPJ_UINT32 l_max_comp = l_cp->m_specific_param.m_enc.m_max_comp_size > 0 ? l_image->numcomps : 1;
223 OPJ_UINT32 l_nb_pocs = l_tcp->numpocs + 1;
224
225 l_pi = opj_pi_initialise_encode(l_image, l_cp, p_tile_no, p_t2_mode);
226 if (!l_pi) {
227 return OPJ_FALSE;
228 }
229
230 * p_data_written = 0;
231
232 if (p_t2_mode == THRESH_CALC ){ /* Calculating threshold */
233 l_current_pi = l_pi;
234
235 for (compno = 0; compno < l_max_comp; ++compno) {
236 OPJ_UINT32 l_comp_len = 0;
237 l_current_pi = l_pi;
238
239 for (poc = 0; poc < pocno ; ++poc) {
240 OPJ_UINT32 l_tp_num = compno;
241
242 /* TODO MSD : check why this function cannot fail (cf. v1) */
243 opj_pi_create_encode(l_pi, l_cp,p_tile_no,poc,l_tp_num,p_tp_pos,p_t2_mode);
244
245 while (opj_pi_next(l_current_pi)) {
246 if (l_current_pi->layno < p_maxlayers) {
247 l_nb_bytes = 0;
248
249 if (! opj_t2_encode_packet(p_tile_no,p_tile, l_tcp, l_current_pi, l_current_data, &l_nb_bytes, p_max_len, cstr_info)) {
250 opj_pi_destroy(l_pi, l_nb_pocs);
251 return OPJ_FALSE;
252 }
253
254 l_comp_len += l_nb_bytes;
255 l_current_data += l_nb_bytes;
256 p_max_len -= l_nb_bytes;
257
258 * p_data_written += l_nb_bytes;
259 }
260 }
261
262 if (l_cp->m_specific_param.m_enc.m_max_comp_size) {
263 if (l_comp_len > l_cp->m_specific_param.m_enc.m_max_comp_size) {
264 opj_pi_destroy(l_pi, l_nb_pocs);
265 return OPJ_FALSE;
266 }
267 }
268
269 ++l_current_pi;
270 }
271 }
272 }
273 else { /* t2_mode == FINAL_PASS */
274 opj_pi_create_encode(l_pi, l_cp,p_tile_no,p_pino,p_tp_num,p_tp_pos,p_t2_mode);
275
276 l_current_pi = &l_pi[p_pino];
277
278 while (opj_pi_next(l_current_pi)) {
279 if (l_current_pi->layno < p_maxlayers) {
280 l_nb_bytes=0;
281
282 if (! opj_t2_encode_packet(p_tile_no,p_tile, l_tcp, l_current_pi, l_current_data, &l_nb_bytes, p_max_len, cstr_info)) {
283 opj_pi_destroy(l_pi, l_nb_pocs);
284 return OPJ_FALSE;
285 }
286
287 l_current_data += l_nb_bytes;
288 p_max_len -= l_nb_bytes;
289
290 * p_data_written += l_nb_bytes;
291
292 /* INDEX >> */
293 if(cstr_info) {
294 if(cstr_info->index_write) {
295 opj_tile_info_t *info_TL = &cstr_info->tile[p_tile_no];
296 opj_packet_info_t *info_PK = &info_TL->packet[cstr_info->packno];
297 if (!cstr_info->packno) {
298 info_PK->start_pos = info_TL->end_header + 1;
299 } else {
300 info_PK->start_pos = ((l_cp->m_specific_param.m_enc.m_tp_on | l_tcp->POC)&& info_PK->start_pos) ? info_PK->start_pos : info_TL->packet[cstr_info->packno - 1].end_pos + 1;
301 }
302 info_PK->end_pos = info_PK->start_pos + l_nb_bytes - 1;
303 info_PK->end_ph_pos += info_PK->start_pos - 1; /* End of packet header which now only represents the distance
304 to start of packet is incremented by value of start of packet*/
305 }
306
307 cstr_info->packno++;
308 }
309 /* << INDEX */
310 ++p_tile->packno;
311 }
312 }
313 }
314
315 opj_pi_destroy(l_pi, l_nb_pocs);
316
317 return OPJ_TRUE;
318 }
319
320 /* see issue 80 */
321 #if 0
322 #define JAS_FPRINTF fprintf
323 #else
324 /* issue 290 */
opj_null_jas_fprintf(FILE * file,const char * format,...)325 static void opj_null_jas_fprintf(FILE* file, const char * format, ...)
326 {
327 (void)file;
328 (void)format;
329 }
330 #define JAS_FPRINTF opj_null_jas_fprintf
331 #endif
332
opj_t2_decode_packets(opj_t2_t * p_t2,OPJ_UINT32 p_tile_no,opj_tcd_tile_t * p_tile,OPJ_BYTE * p_src,OPJ_UINT32 * p_data_read,OPJ_UINT32 p_max_len,opj_codestream_index_t * p_cstr_index)333 OPJ_BOOL opj_t2_decode_packets( opj_t2_t *p_t2,
334 OPJ_UINT32 p_tile_no,
335 opj_tcd_tile_t *p_tile,
336 OPJ_BYTE *p_src,
337 OPJ_UINT32 * p_data_read,
338 OPJ_UINT32 p_max_len,
339 opj_codestream_index_t *p_cstr_index)
340 {
341 OPJ_BYTE *l_current_data = p_src;
342 opj_pi_iterator_t *l_pi = 00;
343 OPJ_UINT32 pino;
344 opj_image_t *l_image = p_t2->image;
345 opj_cp_t *l_cp = p_t2->cp;
346 opj_tcp_t *l_tcp = &(p_t2->cp->tcps[p_tile_no]);
347 OPJ_UINT32 l_nb_bytes_read;
348 OPJ_UINT32 l_nb_pocs = l_tcp->numpocs + 1;
349 opj_pi_iterator_t *l_current_pi = 00;
350 #ifdef TODO_MSD
351 OPJ_UINT32 curtp = 0;
352 OPJ_UINT32 tp_start_packno;
353 #endif
354 opj_packet_info_t *l_pack_info = 00;
355 opj_image_comp_t* l_img_comp = 00;
356
357 OPJ_ARG_NOT_USED(p_cstr_index);
358
359 #ifdef TODO_MSD
360 if (p_cstr_index) {
361 l_pack_info = p_cstr_index->tile_index[p_tile_no].packet;
362 }
363 #endif
364
365 /* create a packet iterator */
366 l_pi = opj_pi_create_decode(l_image, l_cp, p_tile_no);
367 if (!l_pi) {
368 return OPJ_FALSE;
369 }
370
371
372 l_current_pi = l_pi;
373
374 for (pino = 0; pino <= l_tcp->numpocs; ++pino) {
375
376 /* if the resolution needed is too low, one dim of the tilec could be equal to zero
377 * and no packets are used to decode this resolution and
378 * l_current_pi->resno is always >= p_tile->comps[l_current_pi->compno].minimum_num_resolutions
379 * and no l_img_comp->resno_decoded are computed
380 */
381 OPJ_BOOL* first_pass_failed = (OPJ_BOOL*)opj_malloc(l_image->numcomps * sizeof(OPJ_BOOL));
382 if (!first_pass_failed)
383 {
384 opj_pi_destroy(l_pi,l_nb_pocs);
385 return OPJ_FALSE;
386 }
387 memset(first_pass_failed, OPJ_TRUE, l_image->numcomps * sizeof(OPJ_BOOL));
388
389 while (opj_pi_next(l_current_pi)) {
390 JAS_FPRINTF( stderr, "packet offset=00000166 prg=%d cmptno=%02d rlvlno=%02d prcno=%03d lyrno=%02d\n\n",
391 l_current_pi->poc.prg1, l_current_pi->compno, l_current_pi->resno, l_current_pi->precno, l_current_pi->layno );
392
393 if (l_tcp->num_layers_to_decode > l_current_pi->layno
394 && l_current_pi->resno < p_tile->comps[l_current_pi->compno].minimum_num_resolutions) {
395 l_nb_bytes_read = 0;
396
397 first_pass_failed[l_current_pi->compno] = OPJ_FALSE;
398
399 if (! opj_t2_decode_packet(p_t2,p_tile,l_tcp,l_current_pi,l_current_data,&l_nb_bytes_read,p_max_len,l_pack_info)) {
400 opj_pi_destroy(l_pi,l_nb_pocs);
401 opj_free(first_pass_failed);
402 return OPJ_FALSE;
403 }
404
405 l_img_comp = &(l_image->comps[l_current_pi->compno]);
406 l_img_comp->resno_decoded = opj_uint_max(l_current_pi->resno, l_img_comp->resno_decoded);
407 }
408 else {
409 l_nb_bytes_read = 0;
410 if (! opj_t2_skip_packet(p_t2,p_tile,l_tcp,l_current_pi,l_current_data,&l_nb_bytes_read,p_max_len,l_pack_info)) {
411 opj_pi_destroy(l_pi,l_nb_pocs);
412 opj_free(first_pass_failed);
413 return OPJ_FALSE;
414 }
415 }
416
417 if (first_pass_failed[l_current_pi->compno]) {
418 l_img_comp = &(l_image->comps[l_current_pi->compno]);
419 if (l_img_comp->resno_decoded == 0)
420 l_img_comp->resno_decoded = p_tile->comps[l_current_pi->compno].minimum_num_resolutions - 1;
421 }
422
423 l_current_data += l_nb_bytes_read;
424 p_max_len -= l_nb_bytes_read;
425
426 /* INDEX >> */
427 #ifdef TODO_MSD
428 if(p_cstr_info) {
429 opj_tile_info_v2_t *info_TL = &p_cstr_info->tile[p_tile_no];
430 opj_packet_info_t *info_PK = &info_TL->packet[p_cstr_info->packno];
431 tp_start_packno = 0;
432 if (!p_cstr_info->packno) {
433 info_PK->start_pos = info_TL->end_header + 1;
434 } else if (info_TL->packet[p_cstr_info->packno-1].end_pos >= (OPJ_INT32)p_cstr_info->tile[p_tile_no].tp[curtp].tp_end_pos){ /* New tile part */
435 info_TL->tp[curtp].tp_numpacks = p_cstr_info->packno - tp_start_packno; /* Number of packets in previous tile-part */
436 tp_start_packno = p_cstr_info->packno;
437 curtp++;
438 info_PK->start_pos = p_cstr_info->tile[p_tile_no].tp[curtp].tp_end_header+1;
439 } else {
440 info_PK->start_pos = (l_cp->m_specific_param.m_enc.m_tp_on && info_PK->start_pos) ? info_PK->start_pos : info_TL->packet[p_cstr_info->packno - 1].end_pos + 1;
441 }
442 info_PK->end_pos = info_PK->start_pos + l_nb_bytes_read - 1;
443 info_PK->end_ph_pos += info_PK->start_pos - 1; /* End of packet header which now only represents the distance */
444 ++p_cstr_info->packno;
445 }
446 #endif
447 /* << INDEX */
448 }
449 ++l_current_pi;
450
451 opj_free(first_pass_failed);
452 }
453 /* INDEX >> */
454 #ifdef TODO_MSD
455 if
456 (p_cstr_info) {
457 p_cstr_info->tile[p_tile_no].tp[curtp].tp_numpacks = p_cstr_info->packno - tp_start_packno; /* Number of packets in last tile-part */
458 }
459 #endif
460 /* << INDEX */
461
462 /* don't forget to release pi */
463 opj_pi_destroy(l_pi,l_nb_pocs);
464 *p_data_read = (OPJ_UINT32)(l_current_data - p_src);
465 return OPJ_TRUE;
466 }
467
468 /* ----------------------------------------------------------------------- */
469
470 /**
471 * Creates a Tier 2 handle
472 *
473 * @param p_image Source or destination image
474 * @param p_cp Image coding parameters.
475 * @return a new T2 handle if successful, NULL otherwise.
476 */
opj_t2_create(opj_image_t * p_image,opj_cp_t * p_cp)477 opj_t2_t* opj_t2_create(opj_image_t *p_image, opj_cp_t *p_cp)
478 {
479 /* create the t2 structure */
480 opj_t2_t *l_t2 = (opj_t2_t*)opj_malloc(sizeof(opj_t2_t));
481 if (!l_t2) {
482 return NULL;
483 }
484 memset(l_t2,0,sizeof(opj_t2_t));
485
486 l_t2->image = p_image;
487 l_t2->cp = p_cp;
488
489 return l_t2;
490 }
491
opj_t2_destroy(opj_t2_t * t2)492 void opj_t2_destroy(opj_t2_t *t2) {
493 if(t2) {
494 opj_free(t2);
495 }
496 }
497
opj_t2_decode_packet(opj_t2_t * p_t2,opj_tcd_tile_t * p_tile,opj_tcp_t * p_tcp,opj_pi_iterator_t * p_pi,OPJ_BYTE * p_src,OPJ_UINT32 * p_data_read,OPJ_UINT32 p_max_length,opj_packet_info_t * p_pack_info)498 OPJ_BOOL opj_t2_decode_packet( opj_t2_t* p_t2,
499 opj_tcd_tile_t *p_tile,
500 opj_tcp_t *p_tcp,
501 opj_pi_iterator_t *p_pi,
502 OPJ_BYTE *p_src,
503 OPJ_UINT32 * p_data_read,
504 OPJ_UINT32 p_max_length,
505 opj_packet_info_t *p_pack_info)
506 {
507 OPJ_BOOL l_read_data;
508 OPJ_UINT32 l_nb_bytes_read = 0;
509 OPJ_UINT32 l_nb_total_bytes_read = 0;
510
511 *p_data_read = 0;
512
513 if (! opj_t2_read_packet_header(p_t2,p_tile,p_tcp,p_pi,&l_read_data,p_src,&l_nb_bytes_read,p_max_length,p_pack_info)) {
514 return OPJ_FALSE;
515 }
516
517 p_src += l_nb_bytes_read;
518 l_nb_total_bytes_read += l_nb_bytes_read;
519 p_max_length -= l_nb_bytes_read;
520
521 /* we should read data for the packet */
522 if (l_read_data) {
523 l_nb_bytes_read = 0;
524
525 if (! opj_t2_read_packet_data(p_t2,p_tile,p_pi,p_src,&l_nb_bytes_read,p_max_length,p_pack_info)) {
526 return OPJ_FALSE;
527 }
528
529 l_nb_total_bytes_read += l_nb_bytes_read;
530 }
531
532 *p_data_read = l_nb_total_bytes_read;
533
534 return OPJ_TRUE;
535 }
536
opj_t2_encode_packet(OPJ_UINT32 tileno,opj_tcd_tile_t * tile,opj_tcp_t * tcp,opj_pi_iterator_t * pi,OPJ_BYTE * dest,OPJ_UINT32 * p_data_written,OPJ_UINT32 length,opj_codestream_info_t * cstr_info)537 OPJ_BOOL opj_t2_encode_packet( OPJ_UINT32 tileno,
538 opj_tcd_tile_t * tile,
539 opj_tcp_t * tcp,
540 opj_pi_iterator_t *pi,
541 OPJ_BYTE *dest,
542 OPJ_UINT32 * p_data_written,
543 OPJ_UINT32 length,
544 opj_codestream_info_t *cstr_info)
545 {
546 OPJ_UINT32 bandno, cblkno;
547 OPJ_BYTE* c = dest;
548 OPJ_UINT32 l_nb_bytes;
549 OPJ_UINT32 compno = pi->compno; /* component value */
550 OPJ_UINT32 resno = pi->resno; /* resolution level value */
551 OPJ_UINT32 precno = pi->precno; /* precinct value */
552 OPJ_UINT32 layno = pi->layno; /* quality layer value */
553 OPJ_UINT32 l_nb_blocks;
554 opj_tcd_band_t *band = 00;
555 opj_tcd_cblk_enc_t* cblk = 00;
556 opj_tcd_pass_t *pass = 00;
557
558 opj_tcd_tilecomp_t *tilec = &tile->comps[compno];
559 opj_tcd_resolution_t *res = &tilec->resolutions[resno];
560
561 opj_bio_t *bio = 00; /* BIO component */
562
563 /* <SOP 0xff91> */
564 if (tcp->csty & J2K_CP_CSTY_SOP) {
565 c[0] = 255;
566 c[1] = 145;
567 c[2] = 0;
568 c[3] = 4;
569 #if 0
570 c[4] = (tile->packno % 65536) / 256;
571 c[5] = (tile->packno % 65536) % 256;
572 #else
573 c[4] = (tile->packno >> 8) & 0xff; /* packno is uint32_t */
574 c[5] = tile->packno & 0xff;
575 #endif
576 c += 6;
577 length -= 6;
578 }
579 /* </SOP> */
580
581 if (!layno) {
582 band = res->bands;
583
584 for(bandno = 0; bandno < res->numbands; ++bandno) {
585 opj_tcd_precinct_t *prc = &band->precincts[precno];
586
587 opj_tgt_reset(prc->incltree);
588 opj_tgt_reset(prc->imsbtree);
589
590 l_nb_blocks = prc->cw * prc->ch;
591 for (cblkno = 0; cblkno < l_nb_blocks; ++cblkno) {
592 cblk = &prc->cblks.enc[cblkno];
593
594 cblk->numpasses = 0;
595 opj_tgt_setvalue(prc->imsbtree, cblkno, band->numbps - (OPJ_INT32)cblk->numbps);
596 }
597 ++band;
598 }
599 }
600
601 bio = opj_bio_create();
602 opj_bio_init_enc(bio, c, length);
603 opj_bio_write(bio, 1, 1); /* Empty header bit */
604
605 /* Writing Packet header */
606 band = res->bands;
607 for (bandno = 0; bandno < res->numbands; ++bandno) {
608 opj_tcd_precinct_t *prc = &band->precincts[precno];
609
610 l_nb_blocks = prc->cw * prc->ch;
611 cblk = prc->cblks.enc;
612
613 for (cblkno = 0; cblkno < l_nb_blocks; ++cblkno) {
614 opj_tcd_layer_t *layer = &cblk->layers[layno];
615
616 if (!cblk->numpasses && layer->numpasses) {
617 opj_tgt_setvalue(prc->incltree, cblkno, (OPJ_INT32)layno);
618 }
619
620 ++cblk;
621 }
622
623 cblk = prc->cblks.enc;
624 for (cblkno = 0; cblkno < l_nb_blocks; cblkno++) {
625 opj_tcd_layer_t *layer = &cblk->layers[layno];
626 OPJ_UINT32 increment = 0;
627 OPJ_UINT32 nump = 0;
628 OPJ_UINT32 len = 0, passno;
629 OPJ_UINT32 l_nb_passes;
630
631 /* cblk inclusion bits */
632 if (!cblk->numpasses) {
633 opj_tgt_encode(bio, prc->incltree, cblkno, (OPJ_INT32)(layno + 1));
634 } else {
635 opj_bio_write(bio, layer->numpasses != 0, 1);
636 }
637
638 /* if cblk not included, go to the next cblk */
639 if (!layer->numpasses) {
640 ++cblk;
641 continue;
642 }
643
644 /* if first instance of cblk --> zero bit-planes information */
645 if (!cblk->numpasses) {
646 cblk->numlenbits = 3;
647 opj_tgt_encode(bio, prc->imsbtree, cblkno, 999);
648 }
649
650 /* number of coding passes included */
651 opj_t2_putnumpasses(bio, layer->numpasses);
652 l_nb_passes = cblk->numpasses + layer->numpasses;
653 pass = cblk->passes + cblk->numpasses;
654
655 /* computation of the increase of the length indicator and insertion in the header */
656 for (passno = cblk->numpasses; passno < l_nb_passes; ++passno) {
657 ++nump;
658 len += pass->len;
659
660 if (pass->term || passno == (cblk->numpasses + layer->numpasses) - 1) {
661 increment = (OPJ_UINT32)opj_int_max((OPJ_INT32)increment, opj_int_floorlog2((OPJ_INT32)len) + 1
662 - ((OPJ_INT32)cblk->numlenbits + opj_int_floorlog2((OPJ_INT32)nump)));
663 len = 0;
664 nump = 0;
665 }
666
667 ++pass;
668 }
669 opj_t2_putcommacode(bio, (OPJ_INT32)increment);
670
671 /* computation of the new Length indicator */
672 cblk->numlenbits += increment;
673
674 pass = cblk->passes + cblk->numpasses;
675 /* insertion of the codeword segment length */
676 for (passno = cblk->numpasses; passno < l_nb_passes; ++passno) {
677 nump++;
678 len += pass->len;
679
680 if (pass->term || passno == (cblk->numpasses + layer->numpasses) - 1) {
681 opj_bio_write(bio, (OPJ_UINT32)len, cblk->numlenbits + (OPJ_UINT32)opj_int_floorlog2((OPJ_INT32)nump));
682 len = 0;
683 nump = 0;
684 }
685 ++pass;
686 }
687
688 ++cblk;
689 }
690
691 ++band;
692 }
693
694 if (!opj_bio_flush(bio)) {
695 opj_bio_destroy(bio);
696 return OPJ_FALSE; /* modified to eliminate longjmp !! */
697 }
698
699 l_nb_bytes = (OPJ_UINT32)opj_bio_numbytes(bio);
700 c += l_nb_bytes;
701 length -= l_nb_bytes;
702
703 opj_bio_destroy(bio);
704
705 /* <EPH 0xff92> */
706 if (tcp->csty & J2K_CP_CSTY_EPH) {
707 c[0] = 255;
708 c[1] = 146;
709 c += 2;
710 length -= 2;
711 }
712 /* </EPH> */
713
714 /* << INDEX */
715 /* End of packet header position. Currently only represents the distance to start of packet
716 Will be updated later by incrementing with packet start value*/
717 if(cstr_info && cstr_info->index_write) {
718 opj_packet_info_t *info_PK = &cstr_info->tile[tileno].packet[cstr_info->packno];
719 info_PK->end_ph_pos = (OPJ_INT32)(c - dest);
720 }
721 /* INDEX >> */
722
723 /* Writing the packet body */
724 band = res->bands;
725 for (bandno = 0; bandno < res->numbands; bandno++) {
726 opj_tcd_precinct_t *prc = &band->precincts[precno];
727
728 l_nb_blocks = prc->cw * prc->ch;
729 cblk = prc->cblks.enc;
730
731 for (cblkno = 0; cblkno < l_nb_blocks; ++cblkno) {
732 opj_tcd_layer_t *layer = &cblk->layers[layno];
733
734 if (!layer->numpasses) {
735 ++cblk;
736 continue;
737 }
738
739 if (layer->len > length) {
740 return OPJ_FALSE;
741 }
742
743 memcpy(c, layer->data, layer->len);
744 cblk->numpasses += layer->numpasses;
745 c += layer->len;
746 length -= layer->len;
747
748 /* << INDEX */
749 if(cstr_info && cstr_info->index_write) {
750 opj_packet_info_t *info_PK = &cstr_info->tile[tileno].packet[cstr_info->packno];
751 info_PK->disto += layer->disto;
752 if (cstr_info->D_max < info_PK->disto) {
753 cstr_info->D_max = info_PK->disto;
754 }
755 }
756
757 ++cblk;
758 /* INDEX >> */
759 }
760 ++band;
761 }
762
763 assert( c >= dest );
764 * p_data_written += (OPJ_UINT32)(c - dest);
765
766 return OPJ_TRUE;
767 }
768
opj_t2_skip_packet(opj_t2_t * p_t2,opj_tcd_tile_t * p_tile,opj_tcp_t * p_tcp,opj_pi_iterator_t * p_pi,OPJ_BYTE * p_src,OPJ_UINT32 * p_data_read,OPJ_UINT32 p_max_length,opj_packet_info_t * p_pack_info)769 static OPJ_BOOL opj_t2_skip_packet( opj_t2_t* p_t2,
770 opj_tcd_tile_t *p_tile,
771 opj_tcp_t *p_tcp,
772 opj_pi_iterator_t *p_pi,
773 OPJ_BYTE *p_src,
774 OPJ_UINT32 * p_data_read,
775 OPJ_UINT32 p_max_length,
776 opj_packet_info_t *p_pack_info)
777 {
778 OPJ_BOOL l_read_data;
779 OPJ_UINT32 l_nb_bytes_read = 0;
780 OPJ_UINT32 l_nb_total_bytes_read = 0;
781
782 *p_data_read = 0;
783
784 if (! opj_t2_read_packet_header(p_t2,p_tile,p_tcp,p_pi,&l_read_data,p_src,&l_nb_bytes_read,p_max_length,p_pack_info)) {
785 return OPJ_FALSE;
786 }
787
788 p_src += l_nb_bytes_read;
789 l_nb_total_bytes_read += l_nb_bytes_read;
790 p_max_length -= l_nb_bytes_read;
791
792 /* we should read data for the packet */
793 if (l_read_data) {
794 l_nb_bytes_read = 0;
795
796 if (! opj_t2_skip_packet_data(p_t2,p_tile,p_pi,&l_nb_bytes_read,p_max_length,p_pack_info)) {
797 return OPJ_FALSE;
798 }
799
800 l_nb_total_bytes_read += l_nb_bytes_read;
801 }
802 *p_data_read = l_nb_total_bytes_read;
803
804 return OPJ_TRUE;
805 }
806
807
opj_t2_read_packet_header(opj_t2_t * p_t2,opj_tcd_tile_t * p_tile,opj_tcp_t * p_tcp,opj_pi_iterator_t * p_pi,OPJ_BOOL * p_is_data_present,OPJ_BYTE * p_src_data,OPJ_UINT32 * p_data_read,OPJ_UINT32 p_max_length,opj_packet_info_t * p_pack_info)808 OPJ_BOOL opj_t2_read_packet_header( opj_t2_t* p_t2,
809 opj_tcd_tile_t *p_tile,
810 opj_tcp_t *p_tcp,
811 opj_pi_iterator_t *p_pi,
812 OPJ_BOOL * p_is_data_present,
813 OPJ_BYTE *p_src_data,
814 OPJ_UINT32 * p_data_read,
815 OPJ_UINT32 p_max_length,
816 opj_packet_info_t *p_pack_info)
817
818 {
819 /* loop */
820 OPJ_UINT32 bandno, cblkno;
821 OPJ_UINT32 l_nb_code_blocks;
822 OPJ_UINT32 l_remaining_length;
823 OPJ_UINT32 l_header_length;
824 OPJ_UINT32 * l_modified_length_ptr = 00;
825 OPJ_BYTE *l_current_data = p_src_data;
826 opj_cp_t *l_cp = p_t2->cp;
827 opj_bio_t *l_bio = 00; /* BIO component */
828 opj_tcd_band_t *l_band = 00;
829 opj_tcd_cblk_dec_t* l_cblk = 00;
830 opj_tcd_resolution_t* l_res = &p_tile->comps[p_pi->compno].resolutions[p_pi->resno];
831
832 OPJ_BYTE *l_header_data = 00;
833 OPJ_BYTE **l_header_data_start = 00;
834
835 OPJ_UINT32 l_present;
836
837 if (p_pi->layno == 0) {
838 l_band = l_res->bands;
839
840 /* reset tagtrees */
841 for (bandno = 0; bandno < l_res->numbands; ++bandno) {
842 opj_tcd_precinct_t *l_prc = &l_band->precincts[p_pi->precno];
843
844 if ( ! ((l_band->x1-l_band->x0 == 0)||(l_band->y1-l_band->y0 == 0)) ) {
845 opj_tgt_reset(l_prc->incltree);
846 opj_tgt_reset(l_prc->imsbtree);
847 l_cblk = l_prc->cblks.dec;
848
849 l_nb_code_blocks = l_prc->cw * l_prc->ch;
850 for (cblkno = 0; cblkno < l_nb_code_blocks; ++cblkno) {
851 l_cblk->numsegs = 0;
852 l_cblk->real_num_segs = 0;
853 ++l_cblk;
854 }
855 }
856
857 ++l_band;
858 }
859 }
860
861 /* SOP markers */
862
863 if (p_tcp->csty & J2K_CP_CSTY_SOP) {
864 if (p_max_length < 6) {
865 /* TODO opj_event_msg(p_t2->cinfo->event_mgr, EVT_WARNING, "Not enough space for expected SOP marker\n"); */
866 printf("Not enough space for expected SOP marker\n");
867 } else if ((*l_current_data) != 0xff || (*(l_current_data + 1) != 0x91)) {
868 /* TODO opj_event_msg(p_t2->cinfo->event_mgr, EVT_WARNING, "Expected SOP marker\n"); */
869 printf("Expected SOP marker\n");
870 fprintf(stderr, "Error : expected SOP marker\n");
871 } else {
872 l_current_data += 6;
873 }
874
875 /** TODO : check the Nsop value */
876 }
877
878 /*
879 When the marker PPT/PPM is used the packet header are store in PPT/PPM marker
880 This part deal with this caracteristic
881 step 1: Read packet header in the saved structure
882 step 2: Return to codestream for decoding
883 */
884
885 l_bio = opj_bio_create();
886 if (! l_bio) {
887 return OPJ_FALSE;
888 }
889
890 if (l_cp->ppm == 1) { /* PPM */
891 l_header_data_start = &l_cp->ppm_data;
892 l_header_data = *l_header_data_start;
893 l_modified_length_ptr = &(l_cp->ppm_len);
894
895 }
896 else if (p_tcp->ppt == 1) { /* PPT */
897 l_header_data_start = &(p_tcp->ppt_data);
898 l_header_data = *l_header_data_start;
899 l_modified_length_ptr = &(p_tcp->ppt_len);
900 }
901 else { /* Normal Case */
902 l_header_data_start = &(l_current_data);
903 l_header_data = *l_header_data_start;
904 l_remaining_length = (OPJ_UINT32)(p_src_data+p_max_length-l_header_data);
905 l_modified_length_ptr = &(l_remaining_length);
906 }
907
908 opj_bio_init_dec(l_bio, l_header_data,*l_modified_length_ptr);
909
910 l_present = opj_bio_read(l_bio, 1);
911 JAS_FPRINTF(stderr, "present=%d \n", l_present );
912 if (!l_present) {
913 /* TODO MSD: no test to control the output of this function*/
914 opj_bio_inalign(l_bio);
915 l_header_data += opj_bio_numbytes(l_bio);
916 opj_bio_destroy(l_bio);
917
918 /* EPH markers */
919 if (p_tcp->csty & J2K_CP_CSTY_EPH) {
920 if (p_max_length < 2) {
921 fprintf(stderr, "Not enough space for expected EPH marker\n");
922 } else if ((*l_header_data) != 0xff || (*(l_header_data + 1) != 0x92)) {
923 fprintf(stderr, "Error : expected EPH marker\n");
924 } else {
925 l_header_data += 2;
926 }
927 }
928
929 l_header_length = (OPJ_UINT32)(l_header_data - *l_header_data_start);
930 *l_modified_length_ptr -= l_header_length;
931 *l_header_data_start += l_header_length;
932
933 /* << INDEX */
934 /* End of packet header position. Currently only represents the distance to start of packet
935 Will be updated later by incrementing with packet start value */
936 if (p_pack_info) {
937 p_pack_info->end_ph_pos = (OPJ_INT32)(l_current_data - p_src_data);
938 }
939 /* INDEX >> */
940
941 * p_is_data_present = OPJ_FALSE;
942 *p_data_read = (OPJ_UINT32)(l_current_data - p_src_data);
943 return OPJ_TRUE;
944 }
945
946 l_band = l_res->bands;
947 for (bandno = 0; bandno < l_res->numbands; ++bandno) {
948 opj_tcd_precinct_t *l_prc = &(l_band->precincts[p_pi->precno]);
949
950 if ((l_band->x1-l_band->x0 == 0)||(l_band->y1-l_band->y0 == 0)) {
951 ++l_band;
952 continue;
953 }
954
955 l_nb_code_blocks = l_prc->cw * l_prc->ch;
956 l_cblk = l_prc->cblks.dec;
957 for (cblkno = 0; cblkno < l_nb_code_blocks; cblkno++) {
958 OPJ_UINT32 l_included,l_increment, l_segno;
959 OPJ_INT32 n;
960
961 /* if cblk not yet included before --> inclusion tagtree */
962 if (!l_cblk->numsegs) {
963 l_included = opj_tgt_decode(l_bio, l_prc->incltree, cblkno, (OPJ_INT32)(p_pi->layno + 1));
964 /* else one bit */
965 }
966 else {
967 l_included = opj_bio_read(l_bio, 1);
968 }
969
970 /* if cblk not included */
971 if (!l_included) {
972 l_cblk->numnewpasses = 0;
973 ++l_cblk;
974 JAS_FPRINTF(stderr, "included=%d \n", l_included);
975 continue;
976 }
977
978 /* if cblk not yet included --> zero-bitplane tagtree */
979 if (!l_cblk->numsegs) {
980 OPJ_UINT32 i = 0;
981
982 while (!opj_tgt_decode(l_bio, l_prc->imsbtree, cblkno, (OPJ_INT32)i)) {
983 ++i;
984 }
985
986 l_cblk->numbps = (OPJ_UINT32)l_band->numbps + 1 - i;
987 l_cblk->numlenbits = 3;
988 }
989
990 /* number of coding passes */
991 l_cblk->numnewpasses = opj_t2_getnumpasses(l_bio);
992 l_increment = opj_t2_getcommacode(l_bio);
993
994 /* length indicator increment */
995 l_cblk->numlenbits += l_increment;
996 l_segno = 0;
997
998 if (!l_cblk->numsegs) {
999 if (! opj_t2_init_seg(l_cblk, l_segno, p_tcp->tccps[p_pi->compno].cblksty, 1)) {
1000 opj_bio_destroy(l_bio);
1001 return OPJ_FALSE;
1002 }
1003 }
1004 else {
1005 l_segno = l_cblk->numsegs - 1;
1006 if (l_cblk->segs[l_segno].numpasses == l_cblk->segs[l_segno].maxpasses) {
1007 ++l_segno;
1008 if (! opj_t2_init_seg(l_cblk, l_segno, p_tcp->tccps[p_pi->compno].cblksty, 0)) {
1009 opj_bio_destroy(l_bio);
1010 return OPJ_FALSE;
1011 }
1012 }
1013 }
1014 n = (OPJ_INT32)l_cblk->numnewpasses;
1015
1016 do {
1017 l_cblk->segs[l_segno].numnewpasses = (OPJ_UINT32)opj_int_min((OPJ_INT32)(l_cblk->segs[l_segno].maxpasses - l_cblk->segs[l_segno].numpasses), n);
1018 l_cblk->segs[l_segno].newlen = opj_bio_read(l_bio, l_cblk->numlenbits + opj_uint_floorlog2(l_cblk->segs[l_segno].numnewpasses));
1019 JAS_FPRINTF(stderr, "included=%d numnewpasses=%d increment=%d len=%d \n", l_included, l_cblk->segs[l_segno].numnewpasses, l_increment, l_cblk->segs[l_segno].newlen );
1020
1021 n -= (OPJ_INT32)l_cblk->segs[l_segno].numnewpasses;
1022 if (n > 0) {
1023 ++l_segno;
1024
1025 if (! opj_t2_init_seg(l_cblk, l_segno, p_tcp->tccps[p_pi->compno].cblksty, 0)) {
1026 opj_bio_destroy(l_bio);
1027 return OPJ_FALSE;
1028 }
1029 }
1030 } while (n > 0);
1031
1032 ++l_cblk;
1033 }
1034
1035 ++l_band;
1036 }
1037
1038 if (!opj_bio_inalign(l_bio)) {
1039 opj_bio_destroy(l_bio);
1040 return OPJ_FALSE;
1041 }
1042
1043 l_header_data += opj_bio_numbytes(l_bio);
1044 opj_bio_destroy(l_bio);
1045
1046 /* EPH markers */
1047 if (p_tcp->csty & J2K_CP_CSTY_EPH) {
1048 if (p_max_length < 2) {
1049 fprintf(stderr, "Not enough space for expected EPH marker\n");
1050 } else if ((*l_header_data) != 0xff || (*(l_header_data + 1) != 0x92)) {
1051 /* TODO opj_event_msg(t2->cinfo->event_mgr, EVT_ERROR, "Expected EPH marker\n"); */
1052 fprintf(stderr, "Error : expected EPH marker\n");
1053 } else {
1054 l_header_data += 2;
1055 }
1056 }
1057
1058 l_header_length = (OPJ_UINT32)(l_header_data - *l_header_data_start);
1059 JAS_FPRINTF( stderr, "hdrlen=%d \n", l_header_length );
1060 JAS_FPRINTF( stderr, "packet body\n");
1061 *l_modified_length_ptr -= l_header_length;
1062 *l_header_data_start += l_header_length;
1063
1064 /* << INDEX */
1065 /* End of packet header position. Currently only represents the distance to start of packet
1066 Will be updated later by incrementing with packet start value */
1067 if (p_pack_info) {
1068 p_pack_info->end_ph_pos = (OPJ_INT32)(l_current_data - p_src_data);
1069 }
1070 /* INDEX >> */
1071
1072 *p_is_data_present = OPJ_TRUE;
1073 *p_data_read = (OPJ_UINT32)(l_current_data - p_src_data);
1074
1075 return OPJ_TRUE;
1076 }
1077
opj_t2_read_packet_data(opj_t2_t * p_t2,opj_tcd_tile_t * p_tile,opj_pi_iterator_t * p_pi,OPJ_BYTE * p_src_data,OPJ_UINT32 * p_data_read,OPJ_UINT32 p_max_length,opj_packet_info_t * pack_info)1078 OPJ_BOOL opj_t2_read_packet_data( opj_t2_t* p_t2,
1079 opj_tcd_tile_t *p_tile,
1080 opj_pi_iterator_t *p_pi,
1081 OPJ_BYTE *p_src_data,
1082 OPJ_UINT32 * p_data_read,
1083 OPJ_UINT32 p_max_length,
1084 opj_packet_info_t *pack_info)
1085 {
1086 OPJ_UINT32 bandno, cblkno;
1087 OPJ_UINT32 l_nb_code_blocks;
1088 OPJ_BYTE *l_current_data = p_src_data;
1089 opj_tcd_band_t *l_band = 00;
1090 opj_tcd_cblk_dec_t* l_cblk = 00;
1091 opj_tcd_resolution_t* l_res = &p_tile->comps[p_pi->compno].resolutions[p_pi->resno];
1092
1093 OPJ_ARG_NOT_USED(p_t2);
1094 OPJ_ARG_NOT_USED(pack_info);
1095
1096 l_band = l_res->bands;
1097 for (bandno = 0; bandno < l_res->numbands; ++bandno) {
1098 opj_tcd_precinct_t *l_prc = &l_band->precincts[p_pi->precno];
1099
1100 if ((l_band->x1-l_band->x0 == 0)||(l_band->y1-l_band->y0 == 0)) {
1101 ++l_band;
1102 continue;
1103 }
1104
1105 l_nb_code_blocks = l_prc->cw * l_prc->ch;
1106 l_cblk = l_prc->cblks.dec;
1107
1108 for (cblkno = 0; cblkno < l_nb_code_blocks; ++cblkno) {
1109 opj_tcd_seg_t *l_seg = 00;
1110
1111 if (!l_cblk->numnewpasses) {
1112 /* nothing to do */
1113 ++l_cblk;
1114 continue;
1115 }
1116
1117 if (!l_cblk->numsegs) {
1118 l_seg = l_cblk->segs;
1119 ++l_cblk->numsegs;
1120 l_cblk->data_current_size = 0;
1121 }
1122 else {
1123 l_seg = &l_cblk->segs[l_cblk->numsegs - 1];
1124
1125 if (l_seg->numpasses == l_seg->maxpasses) {
1126 ++l_seg;
1127 ++l_cblk->numsegs;
1128 }
1129 }
1130
1131 do {
1132 if (l_current_data + l_seg->newlen > p_src_data + p_max_length) {
1133 fprintf(stderr, "read: segment too long (%d) with max (%d) for codeblock %d (p=%d, b=%d, r=%d, c=%d)\n",
1134 l_seg->newlen, p_max_length, cblkno, p_pi->precno, bandno, p_pi->resno, p_pi->compno);
1135 return OPJ_FALSE;
1136 }
1137
1138 #ifdef USE_JPWL
1139 /* we need here a j2k handle to verify if making a check to
1140 the validity of cblocks parameters is selected from user (-W) */
1141
1142 /* let's check that we are not exceeding */
1143 if ((l_cblk->len + l_seg->newlen) > 8192) {
1144 opj_event_msg(p_t2->cinfo, EVT_WARNING,
1145 "JPWL: segment too long (%d) for codeblock %d (p=%d, b=%d, r=%d, c=%d)\n",
1146 l_seg->newlen, cblkno, p_pi->precno, bandno, p_pi->resno, p_pi->compno);
1147 if (!JPWL_ASSUME) {
1148 opj_event_msg(p_t2->cinfo, EVT_ERROR, "JPWL: giving up\n");
1149 return OPJ_FALSE;
1150 }
1151 l_seg->newlen = 8192 - l_cblk->len;
1152 opj_event_msg(p_t2->cinfo, EVT_WARNING, " - truncating segment to %d\n", l_seg->newlen);
1153 break;
1154 };
1155
1156 #endif /* USE_JPWL */
1157 /* Check if the cblk->data have allocated enough memory */
1158 if ((l_cblk->data_current_size + l_seg->newlen) > l_cblk->data_max_size) {
1159 OPJ_BYTE* new_cblk_data = (OPJ_BYTE*) opj_realloc(l_cblk->data, l_cblk->data_current_size + l_seg->newlen);
1160 if(! new_cblk_data) {
1161 opj_free(l_cblk->data);
1162 l_cblk->data_max_size = 0;
1163 /* opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to realloc code block cata!\n"); */
1164 return OPJ_FALSE;
1165 }
1166 l_cblk->data_max_size = l_cblk->data_current_size + l_seg->newlen;
1167 l_cblk->data = new_cblk_data;
1168 }
1169
1170 memcpy(l_cblk->data + l_cblk->data_current_size, l_current_data, l_seg->newlen);
1171
1172 if (l_seg->numpasses == 0) {
1173 l_seg->data = &l_cblk->data;
1174 l_seg->dataindex = l_cblk->data_current_size;
1175 }
1176
1177 l_current_data += l_seg->newlen;
1178 l_seg->numpasses += l_seg->numnewpasses;
1179 l_cblk->numnewpasses -= l_seg->numnewpasses;
1180
1181 l_seg->real_num_passes = l_seg->numpasses;
1182 l_cblk->data_current_size += l_seg->newlen;
1183 l_seg->len += l_seg->newlen;
1184
1185 if (l_cblk->numnewpasses > 0) {
1186 ++l_seg;
1187 ++l_cblk->numsegs;
1188 }
1189 } while (l_cblk->numnewpasses > 0);
1190
1191 l_cblk->real_num_segs = l_cblk->numsegs;
1192 ++l_cblk;
1193 } /* next code_block */
1194
1195 ++l_band;
1196 }
1197
1198 *(p_data_read) = (OPJ_UINT32)(l_current_data - p_src_data);
1199
1200 return OPJ_TRUE;
1201 }
1202
opj_t2_skip_packet_data(opj_t2_t * p_t2,opj_tcd_tile_t * p_tile,opj_pi_iterator_t * p_pi,OPJ_UINT32 * p_data_read,OPJ_UINT32 p_max_length,opj_packet_info_t * pack_info)1203 OPJ_BOOL opj_t2_skip_packet_data( opj_t2_t* p_t2,
1204 opj_tcd_tile_t *p_tile,
1205 opj_pi_iterator_t *p_pi,
1206 OPJ_UINT32 * p_data_read,
1207 OPJ_UINT32 p_max_length,
1208 opj_packet_info_t *pack_info)
1209 {
1210 OPJ_UINT32 bandno, cblkno;
1211 OPJ_UINT32 l_nb_code_blocks;
1212 opj_tcd_band_t *l_band = 00;
1213 opj_tcd_cblk_dec_t* l_cblk = 00;
1214 opj_tcd_resolution_t* l_res = &p_tile->comps[p_pi->compno].resolutions[p_pi->resno];
1215
1216 OPJ_ARG_NOT_USED(p_t2);
1217 OPJ_ARG_NOT_USED(pack_info);
1218
1219 *p_data_read = 0;
1220 l_band = l_res->bands;
1221
1222 for (bandno = 0; bandno < l_res->numbands; ++bandno) {
1223 opj_tcd_precinct_t *l_prc = &l_band->precincts[p_pi->precno];
1224
1225 if ((l_band->x1-l_band->x0 == 0)||(l_band->y1-l_band->y0 == 0)) {
1226 ++l_band;
1227 continue;
1228 }
1229
1230 l_nb_code_blocks = l_prc->cw * l_prc->ch;
1231 l_cblk = l_prc->cblks.dec;
1232
1233 for (cblkno = 0; cblkno < l_nb_code_blocks; ++cblkno) {
1234 opj_tcd_seg_t *l_seg = 00;
1235
1236 if (!l_cblk->numnewpasses) {
1237 /* nothing to do */
1238 ++l_cblk;
1239 continue;
1240 }
1241
1242 if (!l_cblk->numsegs) {
1243 l_seg = l_cblk->segs;
1244 ++l_cblk->numsegs;
1245 l_cblk->data_current_size = 0;
1246 }
1247 else {
1248 l_seg = &l_cblk->segs[l_cblk->numsegs - 1];
1249
1250 if (l_seg->numpasses == l_seg->maxpasses) {
1251 ++l_seg;
1252 ++l_cblk->numsegs;
1253 }
1254 }
1255
1256 do {
1257 if (* p_data_read + l_seg->newlen > p_max_length) {
1258 fprintf(stderr, "skip: segment too long (%d) with max (%d) for codeblock %d (p=%d, b=%d, r=%d, c=%d)\n",
1259 l_seg->newlen, p_max_length, cblkno, p_pi->precno, bandno, p_pi->resno, p_pi->compno);
1260 return OPJ_FALSE;
1261 }
1262
1263 #ifdef USE_JPWL
1264 /* we need here a j2k handle to verify if making a check to
1265 the validity of cblocks parameters is selected from user (-W) */
1266
1267 /* let's check that we are not exceeding */
1268 if ((l_cblk->len + l_seg->newlen) > 8192) {
1269 opj_event_msg(p_t2->cinfo, EVT_WARNING,
1270 "JPWL: segment too long (%d) for codeblock %d (p=%d, b=%d, r=%d, c=%d)\n",
1271 l_seg->newlen, cblkno, p_pi->precno, bandno, p_pi->resno, p_pi->compno);
1272 if (!JPWL_ASSUME) {
1273 opj_event_msg(p_t2->cinfo, EVT_ERROR, "JPWL: giving up\n");
1274 return -999;
1275 }
1276 l_seg->newlen = 8192 - l_cblk->len;
1277 opj_event_msg(p_t2->cinfo, EVT_WARNING, " - truncating segment to %d\n", l_seg->newlen);
1278 break;
1279 };
1280
1281 #endif /* USE_JPWL */
1282 JAS_FPRINTF(stderr, "p_data_read (%d) newlen (%d) \n", *p_data_read, l_seg->newlen );
1283 *(p_data_read) += l_seg->newlen;
1284
1285 l_seg->numpasses += l_seg->numnewpasses;
1286 l_cblk->numnewpasses -= l_seg->numnewpasses;
1287 if (l_cblk->numnewpasses > 0)
1288 {
1289 ++l_seg;
1290 ++l_cblk->numsegs;
1291 }
1292 } while (l_cblk->numnewpasses > 0);
1293
1294 ++l_cblk;
1295 }
1296
1297 ++l_band;
1298 }
1299
1300 return OPJ_TRUE;
1301 }
1302
1303
opj_t2_init_seg(opj_tcd_cblk_dec_t * cblk,OPJ_UINT32 index,OPJ_UINT32 cblksty,OPJ_UINT32 first)1304 OPJ_BOOL opj_t2_init_seg( opj_tcd_cblk_dec_t* cblk,
1305 OPJ_UINT32 index,
1306 OPJ_UINT32 cblksty,
1307 OPJ_UINT32 first)
1308 {
1309 opj_tcd_seg_t* seg = 00;
1310 OPJ_UINT32 l_nb_segs = index + 1;
1311
1312 if (l_nb_segs > cblk->m_current_max_segs) {
1313 opj_tcd_seg_t* new_segs;
1314 cblk->m_current_max_segs += OPJ_J2K_DEFAULT_NB_SEGS;
1315
1316 new_segs = (opj_tcd_seg_t*) opj_realloc(cblk->segs, cblk->m_current_max_segs * sizeof(opj_tcd_seg_t));
1317 if(! new_segs) {
1318 opj_free(cblk->segs);
1319 cblk->segs = NULL;
1320 cblk->m_current_max_segs = 0;
1321 /* opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to initialize segment %d\n", l_nb_segs); */
1322 return OPJ_FALSE;
1323 }
1324 cblk->segs = new_segs;
1325 }
1326
1327 seg = &cblk->segs[index];
1328 memset(seg,0,sizeof(opj_tcd_seg_t));
1329
1330 if (cblksty & J2K_CCP_CBLKSTY_TERMALL) {
1331 seg->maxpasses = 1;
1332 }
1333 else if (cblksty & J2K_CCP_CBLKSTY_LAZY) {
1334 if (first) {
1335 seg->maxpasses = 10;
1336 } else {
1337 seg->maxpasses = (((seg - 1)->maxpasses == 1) || ((seg - 1)->maxpasses == 10)) ? 2 : 1;
1338 }
1339 } else {
1340 seg->maxpasses = 109;
1341 }
1342
1343 return OPJ_TRUE;
1344 }
1345