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 */ 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 } 160 161 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 } 169 170 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 } 183 184 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 /* ----------------------------------------------------------------------- */ 198 199 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 */ 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 332 333 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 */ 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 } 491 492 void opj_t2_destroy(opj_t2_t *t2) { 493 if(t2) { 494 opj_free(t2); 495 } 496 } 497 498 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 } 536 537 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 } 768 769 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 } 806 807 808 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 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 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 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
