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 48static void opj_t2_putcommacode(opj_bio_t *bio, OPJ_INT32 n); 49 50static OPJ_UINT32 opj_t2_getcommacode(opj_bio_t *bio); 51/** 52Variable length code for signalling delta Zil (truncation point) 53@param bio Bit Input/Output component 54@param n delta Zil 55*/ 56static void opj_t2_putnumpasses(opj_bio_t *bio, OPJ_UINT32 n); 57static OPJ_UINT32 opj_t2_getnumpasses(opj_bio_t *bio); 58 59/** 60Encode 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*/ 71static 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/** 81Decode 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*/ 93static 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 opj_event_mgr_t *p_manager); 102 103static OPJ_BOOL opj_t2_skip_packet( opj_t2_t* p_t2, 104 opj_tcd_tile_t *p_tile, 105 opj_tcp_t *p_tcp, 106 opj_pi_iterator_t *p_pi, 107 OPJ_BYTE *p_src, 108 OPJ_UINT32 * p_data_read, 109 OPJ_UINT32 p_max_length, 110 opj_packet_info_t *p_pack_info, 111 opj_event_mgr_t *p_manager); 112 113static OPJ_BOOL opj_t2_read_packet_header( opj_t2_t* p_t2, 114 opj_tcd_tile_t *p_tile, 115 opj_tcp_t *p_tcp, 116 opj_pi_iterator_t *p_pi, 117 OPJ_BOOL * p_is_data_present, 118 OPJ_BYTE *p_src_data, 119 OPJ_UINT32 * p_data_read, 120 OPJ_UINT32 p_max_length, 121 opj_packet_info_t *p_pack_info, 122 opj_event_mgr_t *p_manager); 123 124static OPJ_BOOL opj_t2_read_packet_data(opj_t2_t* p_t2, 125 opj_tcd_tile_t *p_tile, 126 opj_pi_iterator_t *p_pi, 127 OPJ_BYTE *p_src_data, 128 OPJ_UINT32 * p_data_read, 129 OPJ_UINT32 p_max_length, 130 opj_packet_info_t *pack_info, 131 opj_event_mgr_t *p_manager); 132 133static OPJ_BOOL opj_t2_skip_packet_data(opj_t2_t* p_t2, 134 opj_tcd_tile_t *p_tile, 135 opj_pi_iterator_t *p_pi, 136 OPJ_UINT32 * p_data_read, 137 OPJ_UINT32 p_max_length, 138 opj_packet_info_t *pack_info, 139 opj_event_mgr_t *p_manager); 140 141/** 142@param cblk 143@param index 144@param cblksty 145@param first 146*/ 147static OPJ_BOOL opj_t2_init_seg( opj_tcd_cblk_dec_t* cblk, 148 OPJ_UINT32 index, 149 OPJ_UINT32 cblksty, 150 OPJ_UINT32 first); 151 152/*@}*/ 153 154/*@}*/ 155 156/* ----------------------------------------------------------------------- */ 157 158/* #define RESTART 0x04 */ 159static void opj_t2_putcommacode(opj_bio_t *bio, OPJ_INT32 n) { 160 while (--n >= 0) { 161 opj_bio_write(bio, 1, 1); 162 } 163 opj_bio_write(bio, 0, 1); 164} 165 166static OPJ_UINT32 opj_t2_getcommacode(opj_bio_t *bio) 167{ 168 OPJ_UINT32 n = 0; 169 while (opj_bio_read(bio, 1)) { 170 ++n; 171 } 172 return n; 173} 174 175static void opj_t2_putnumpasses(opj_bio_t *bio, OPJ_UINT32 n) { 176 if (n == 1) { 177 opj_bio_write(bio, 0, 1); 178 } else if (n == 2) { 179 opj_bio_write(bio, 2, 2); 180 } else if (n <= 5) { 181 opj_bio_write(bio, 0xc | (n - 3), 4); 182 } else if (n <= 36) { 183 opj_bio_write(bio, 0x1e0 | (n - 6), 9); 184 } else if (n <= 164) { 185 opj_bio_write(bio, 0xff80 | (n - 37), 16); 186 } 187} 188 189static OPJ_UINT32 opj_t2_getnumpasses(opj_bio_t *bio) { 190 OPJ_UINT32 n; 191 if (!opj_bio_read(bio, 1)) 192 return 1; 193 if (!opj_bio_read(bio, 1)) 194 return 2; 195 if ((n = opj_bio_read(bio, 2)) != 3) 196 return (3 + n); 197 if ((n = opj_bio_read(bio, 5)) != 31) 198 return (6 + n); 199 return (37 + opj_bio_read(bio, 7)); 200} 201 202/* ----------------------------------------------------------------------- */ 203 204OPJ_BOOL opj_t2_encode_packets( opj_t2_t* p_t2, 205 OPJ_UINT32 p_tile_no, 206 opj_tcd_tile_t *p_tile, 207 OPJ_UINT32 p_maxlayers, 208 OPJ_BYTE *p_dest, 209 OPJ_UINT32 * p_data_written, 210 OPJ_UINT32 p_max_len, 211 opj_codestream_info_t *cstr_info, 212 OPJ_UINT32 p_tp_num, 213 OPJ_INT32 p_tp_pos, 214 OPJ_UINT32 p_pino, 215 J2K_T2_MODE p_t2_mode) 216{ 217 OPJ_BYTE *l_current_data = p_dest; 218 OPJ_UINT32 l_nb_bytes = 0; 219 OPJ_UINT32 compno; 220 OPJ_UINT32 poc; 221 opj_pi_iterator_t *l_pi = 00; 222 opj_pi_iterator_t *l_current_pi = 00; 223 opj_image_t *l_image = p_t2->image; 224 opj_cp_t *l_cp = p_t2->cp; 225 opj_tcp_t *l_tcp = &l_cp->tcps[p_tile_no]; 226 OPJ_UINT32 pocno = (l_cp->rsiz == OPJ_PROFILE_CINEMA_4K)? 2: 1; 227 OPJ_UINT32 l_max_comp = l_cp->m_specific_param.m_enc.m_max_comp_size > 0 ? l_image->numcomps : 1; 228 OPJ_UINT32 l_nb_pocs = l_tcp->numpocs + 1; 229 230 l_pi = opj_pi_initialise_encode(l_image, l_cp, p_tile_no, p_t2_mode); 231 if (!l_pi) { 232 return OPJ_FALSE; 233 } 234 235 * p_data_written = 0; 236 237 if (p_t2_mode == THRESH_CALC ){ /* Calculating threshold */ 238 l_current_pi = l_pi; 239 240 for (compno = 0; compno < l_max_comp; ++compno) { 241 OPJ_UINT32 l_comp_len = 0; 242 l_current_pi = l_pi; 243 244 for (poc = 0; poc < pocno ; ++poc) { 245 OPJ_UINT32 l_tp_num = compno; 246 247 /* TODO MSD : check why this function cannot fail (cf. v1) */ 248 opj_pi_create_encode(l_pi, l_cp,p_tile_no,poc,l_tp_num,p_tp_pos,p_t2_mode); 249 250 if (l_current_pi->poc.prg == OPJ_PROG_UNKNOWN) { 251 /* TODO ADE : add an error */ 252 opj_pi_destroy(l_pi, l_nb_pocs); 253 return OPJ_FALSE; 254 } 255 while (opj_pi_next(l_current_pi)) { 256 if (l_current_pi->layno < p_maxlayers) { 257 l_nb_bytes = 0; 258 259 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)) { 260 opj_pi_destroy(l_pi, l_nb_pocs); 261 return OPJ_FALSE; 262 } 263 264 l_comp_len += l_nb_bytes; 265 l_current_data += l_nb_bytes; 266 p_max_len -= l_nb_bytes; 267 268 * p_data_written += l_nb_bytes; 269 } 270 } 271 272 if (l_cp->m_specific_param.m_enc.m_max_comp_size) { 273 if (l_comp_len > l_cp->m_specific_param.m_enc.m_max_comp_size) { 274 opj_pi_destroy(l_pi, l_nb_pocs); 275 return OPJ_FALSE; 276 } 277 } 278 279 ++l_current_pi; 280 } 281 } 282 } 283 else { /* t2_mode == FINAL_PASS */ 284 opj_pi_create_encode(l_pi, l_cp,p_tile_no,p_pino,p_tp_num,p_tp_pos,p_t2_mode); 285 286 l_current_pi = &l_pi[p_pino]; 287 if (l_current_pi->poc.prg == OPJ_PROG_UNKNOWN) { 288 /* TODO ADE : add an error */ 289 opj_pi_destroy(l_pi, l_nb_pocs); 290 return OPJ_FALSE; 291 } 292 while (opj_pi_next(l_current_pi)) { 293 if (l_current_pi->layno < p_maxlayers) { 294 l_nb_bytes=0; 295 296 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)) { 297 opj_pi_destroy(l_pi, l_nb_pocs); 298 return OPJ_FALSE; 299 } 300 301 l_current_data += l_nb_bytes; 302 p_max_len -= l_nb_bytes; 303 304 * p_data_written += l_nb_bytes; 305 306 /* INDEX >> */ 307 if(cstr_info) { 308 if(cstr_info->index_write) { 309 opj_tile_info_t *info_TL = &cstr_info->tile[p_tile_no]; 310 opj_packet_info_t *info_PK = &info_TL->packet[cstr_info->packno]; 311 if (!cstr_info->packno) { 312 info_PK->start_pos = info_TL->end_header + 1; 313 } else { 314 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; 315 } 316 info_PK->end_pos = info_PK->start_pos + l_nb_bytes - 1; 317 info_PK->end_ph_pos += info_PK->start_pos - 1; /* End of packet header which now only represents the distance 318 to start of packet is incremented by value of start of packet*/ 319 } 320 321 cstr_info->packno++; 322 } 323 /* << INDEX */ 324 ++p_tile->packno; 325 } 326 } 327 } 328 329 opj_pi_destroy(l_pi, l_nb_pocs); 330 331 return OPJ_TRUE; 332} 333 334/* see issue 80 */ 335#if 0 336#define JAS_FPRINTF fprintf 337#else 338/* issue 290 */ 339static void opj_null_jas_fprintf(FILE* file, const char * format, ...) 340{ 341 (void)file; 342 (void)format; 343} 344#define JAS_FPRINTF opj_null_jas_fprintf 345#endif 346 347OPJ_BOOL opj_t2_decode_packets( opj_t2_t *p_t2, 348 OPJ_UINT32 p_tile_no, 349 opj_tcd_tile_t *p_tile, 350 OPJ_BYTE *p_src, 351 OPJ_UINT32 * p_data_read, 352 OPJ_UINT32 p_max_len, 353 opj_codestream_index_t *p_cstr_index, 354 opj_event_mgr_t *p_manager) 355{ 356 OPJ_BYTE *l_current_data = p_src; 357 opj_pi_iterator_t *l_pi = 00; 358 OPJ_UINT32 pino; 359 opj_image_t *l_image = p_t2->image; 360 opj_cp_t *l_cp = p_t2->cp; 361 opj_tcp_t *l_tcp = &(p_t2->cp->tcps[p_tile_no]); 362 OPJ_UINT32 l_nb_bytes_read; 363 OPJ_UINT32 l_nb_pocs = l_tcp->numpocs + 1; 364 opj_pi_iterator_t *l_current_pi = 00; 365#ifdef TODO_MSD 366 OPJ_UINT32 curtp = 0; 367 OPJ_UINT32 tp_start_packno; 368#endif 369 opj_packet_info_t *l_pack_info = 00; 370 opj_image_comp_t* l_img_comp = 00; 371 372 OPJ_ARG_NOT_USED(p_cstr_index); 373 374#ifdef TODO_MSD 375 if (p_cstr_index) { 376 l_pack_info = p_cstr_index->tile_index[p_tile_no].packet; 377 } 378#endif 379 380 /* create a packet iterator */ 381 l_pi = opj_pi_create_decode(l_image, l_cp, p_tile_no); 382 if (!l_pi) { 383 return OPJ_FALSE; 384 } 385 386 387 l_current_pi = l_pi; 388 389 for (pino = 0; pino <= l_tcp->numpocs; ++pino) { 390 391 /* if the resolution needed is too low, one dim of the tilec could be equal to zero 392 * and no packets are used to decode this resolution and 393 * l_current_pi->resno is always >= p_tile->comps[l_current_pi->compno].minimum_num_resolutions 394 * and no l_img_comp->resno_decoded are computed 395 */ 396 OPJ_BOOL* first_pass_failed = NULL; 397 398 if (l_current_pi->poc.prg == OPJ_PROG_UNKNOWN) { 399 /* TODO ADE : add an error */ 400 opj_pi_destroy(l_pi, l_nb_pocs); 401 return OPJ_FALSE; 402 } 403 404 first_pass_failed = (OPJ_BOOL*)opj_malloc(l_image->numcomps * sizeof(OPJ_BOOL)); 405 if (!first_pass_failed) 406 { 407 opj_pi_destroy(l_pi,l_nb_pocs); 408 return OPJ_FALSE; 409 } 410 memset(first_pass_failed, OPJ_TRUE, l_image->numcomps * sizeof(OPJ_BOOL)); 411 412 while (opj_pi_next(l_current_pi)) { 413 JAS_FPRINTF( stderr, "packet offset=00000166 prg=%d cmptno=%02d rlvlno=%02d prcno=%03d lyrno=%02d\n\n", 414 l_current_pi->poc.prg1, l_current_pi->compno, l_current_pi->resno, l_current_pi->precno, l_current_pi->layno ); 415 416 if (l_tcp->num_layers_to_decode > l_current_pi->layno 417 && l_current_pi->resno < p_tile->comps[l_current_pi->compno].minimum_num_resolutions) { 418 l_nb_bytes_read = 0; 419 420 first_pass_failed[l_current_pi->compno] = OPJ_FALSE; 421 422 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, p_manager)) { 423 opj_pi_destroy(l_pi,l_nb_pocs); 424 opj_free(first_pass_failed); 425 return OPJ_FALSE; 426 } 427 428 l_img_comp = &(l_image->comps[l_current_pi->compno]); 429 l_img_comp->resno_decoded = opj_uint_max(l_current_pi->resno, l_img_comp->resno_decoded); 430 } 431 else { 432 l_nb_bytes_read = 0; 433 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, p_manager)) { 434 opj_pi_destroy(l_pi,l_nb_pocs); 435 opj_free(first_pass_failed); 436 return OPJ_FALSE; 437 } 438 } 439 440 if (first_pass_failed[l_current_pi->compno]) { 441 l_img_comp = &(l_image->comps[l_current_pi->compno]); 442 if (l_img_comp->resno_decoded == 0) 443 l_img_comp->resno_decoded = p_tile->comps[l_current_pi->compno].minimum_num_resolutions - 1; 444 } 445 446 l_current_data += l_nb_bytes_read; 447 p_max_len -= l_nb_bytes_read; 448 449 /* INDEX >> */ 450#ifdef TODO_MSD 451 if(p_cstr_info) { 452 opj_tile_info_v2_t *info_TL = &p_cstr_info->tile[p_tile_no]; 453 opj_packet_info_t *info_PK = &info_TL->packet[p_cstr_info->packno]; 454 tp_start_packno = 0; 455 if (!p_cstr_info->packno) { 456 info_PK->start_pos = info_TL->end_header + 1; 457 } 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 */ 458 info_TL->tp[curtp].tp_numpacks = p_cstr_info->packno - tp_start_packno; /* Number of packets in previous tile-part */ 459 tp_start_packno = p_cstr_info->packno; 460 curtp++; 461 info_PK->start_pos = p_cstr_info->tile[p_tile_no].tp[curtp].tp_end_header+1; 462 } else { 463 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; 464 } 465 info_PK->end_pos = info_PK->start_pos + l_nb_bytes_read - 1; 466 info_PK->end_ph_pos += info_PK->start_pos - 1; /* End of packet header which now only represents the distance */ 467 ++p_cstr_info->packno; 468 } 469#endif 470 /* << INDEX */ 471 } 472 ++l_current_pi; 473 474 opj_free(first_pass_failed); 475 } 476 /* INDEX >> */ 477#ifdef TODO_MSD 478 if 479 (p_cstr_info) { 480 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 */ 481 } 482#endif 483 /* << INDEX */ 484 485 /* don't forget to release pi */ 486 opj_pi_destroy(l_pi,l_nb_pocs); 487 *p_data_read = (OPJ_UINT32)(l_current_data - p_src); 488 return OPJ_TRUE; 489} 490 491/* ----------------------------------------------------------------------- */ 492 493/** 494 * Creates a Tier 2 handle 495 * 496 * @param p_image Source or destination image 497 * @param p_cp Image coding parameters. 498 * @return a new T2 handle if successful, NULL otherwise. 499*/ 500opj_t2_t* opj_t2_create(opj_image_t *p_image, opj_cp_t *p_cp) 501{ 502 /* create the t2 structure */ 503 opj_t2_t *l_t2 = (opj_t2_t*)opj_calloc(1,sizeof(opj_t2_t)); 504 if (!l_t2) { 505 return NULL; 506 } 507 508 l_t2->image = p_image; 509 l_t2->cp = p_cp; 510 511 return l_t2; 512} 513 514void opj_t2_destroy(opj_t2_t *t2) { 515 if(t2) { 516 opj_free(t2); 517 } 518} 519 520static OPJ_BOOL opj_t2_decode_packet( opj_t2_t* p_t2, 521 opj_tcd_tile_t *p_tile, 522 opj_tcp_t *p_tcp, 523 opj_pi_iterator_t *p_pi, 524 OPJ_BYTE *p_src, 525 OPJ_UINT32 * p_data_read, 526 OPJ_UINT32 p_max_length, 527 opj_packet_info_t *p_pack_info, 528 opj_event_mgr_t *p_manager) 529{ 530 OPJ_BOOL l_read_data; 531 OPJ_UINT32 l_nb_bytes_read = 0; 532 OPJ_UINT32 l_nb_total_bytes_read = 0; 533 534 *p_data_read = 0; 535 536 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, p_manager)) { 537 return OPJ_FALSE; 538 } 539 540 p_src += l_nb_bytes_read; 541 l_nb_total_bytes_read += l_nb_bytes_read; 542 p_max_length -= l_nb_bytes_read; 543 544 /* we should read data for the packet */ 545 if (l_read_data) { 546 l_nb_bytes_read = 0; 547 548 if (! opj_t2_read_packet_data(p_t2,p_tile,p_pi,p_src,&l_nb_bytes_read,p_max_length,p_pack_info, p_manager)) { 549 return OPJ_FALSE; 550 } 551 552 l_nb_total_bytes_read += l_nb_bytes_read; 553 } 554 555 *p_data_read = l_nb_total_bytes_read; 556 557 return OPJ_TRUE; 558} 559 560static OPJ_BOOL opj_t2_encode_packet( OPJ_UINT32 tileno, 561 opj_tcd_tile_t * tile, 562 opj_tcp_t * tcp, 563 opj_pi_iterator_t *pi, 564 OPJ_BYTE *dest, 565 OPJ_UINT32 * p_data_written, 566 OPJ_UINT32 length, 567 opj_codestream_info_t *cstr_info) 568{ 569 OPJ_UINT32 bandno, cblkno; 570 OPJ_BYTE* c = dest; 571 OPJ_UINT32 l_nb_bytes; 572 OPJ_UINT32 compno = pi->compno; /* component value */ 573 OPJ_UINT32 resno = pi->resno; /* resolution level value */ 574 OPJ_UINT32 precno = pi->precno; /* precinct value */ 575 OPJ_UINT32 layno = pi->layno; /* quality layer value */ 576 OPJ_UINT32 l_nb_blocks; 577 opj_tcd_band_t *band = 00; 578 opj_tcd_cblk_enc_t* cblk = 00; 579 opj_tcd_pass_t *pass = 00; 580 581 opj_tcd_tilecomp_t *tilec = &tile->comps[compno]; 582 opj_tcd_resolution_t *res = &tilec->resolutions[resno]; 583 584 opj_bio_t *bio = 00; /* BIO component */ 585 586 /* <SOP 0xff91> */ 587 if (tcp->csty & J2K_CP_CSTY_SOP) { 588 c[0] = 255; 589 c[1] = 145; 590 c[2] = 0; 591 c[3] = 4; 592#if 0 593 c[4] = (tile->packno % 65536) / 256; 594 c[5] = (tile->packno % 65536) % 256; 595#else 596 c[4] = (tile->packno >> 8) & 0xff; /* packno is uint32_t */ 597 c[5] = tile->packno & 0xff; 598#endif 599 c += 6; 600 length -= 6; 601 } 602 /* </SOP> */ 603 604 if (!layno) { 605 band = res->bands; 606 607 for(bandno = 0; bandno < res->numbands; ++bandno) { 608 opj_tcd_precinct_t *prc = &band->precincts[precno]; 609 610 opj_tgt_reset(prc->incltree); 611 opj_tgt_reset(prc->imsbtree); 612 613 l_nb_blocks = prc->cw * prc->ch; 614 for (cblkno = 0; cblkno < l_nb_blocks; ++cblkno) { 615 cblk = &prc->cblks.enc[cblkno]; 616 617 cblk->numpasses = 0; 618 opj_tgt_setvalue(prc->imsbtree, cblkno, band->numbps - (OPJ_INT32)cblk->numbps); 619 } 620 ++band; 621 } 622 } 623 624 bio = opj_bio_create(); 625 if (!bio) { 626 /* FIXME event manager error callback */ 627 return OPJ_FALSE; 628 } 629 opj_bio_init_enc(bio, c, length); 630 opj_bio_write(bio, 1, 1); /* Empty header bit */ 631 632 /* Writing Packet header */ 633 band = res->bands; 634 for (bandno = 0; bandno < res->numbands; ++bandno) { 635 opj_tcd_precinct_t *prc = &band->precincts[precno]; 636 637 l_nb_blocks = prc->cw * prc->ch; 638 cblk = prc->cblks.enc; 639 640 for (cblkno = 0; cblkno < l_nb_blocks; ++cblkno) { 641 opj_tcd_layer_t *layer = &cblk->layers[layno]; 642 643 if (!cblk->numpasses && layer->numpasses) { 644 opj_tgt_setvalue(prc->incltree, cblkno, (OPJ_INT32)layno); 645 } 646 647 ++cblk; 648 } 649 650 cblk = prc->cblks.enc; 651 for (cblkno = 0; cblkno < l_nb_blocks; cblkno++) { 652 opj_tcd_layer_t *layer = &cblk->layers[layno]; 653 OPJ_UINT32 increment = 0; 654 OPJ_UINT32 nump = 0; 655 OPJ_UINT32 len = 0, passno; 656 OPJ_UINT32 l_nb_passes; 657 658 /* cblk inclusion bits */ 659 if (!cblk->numpasses) { 660 opj_tgt_encode(bio, prc->incltree, cblkno, (OPJ_INT32)(layno + 1)); 661 } else { 662 opj_bio_write(bio, layer->numpasses != 0, 1); 663 } 664 665 /* if cblk not included, go to the next cblk */ 666 if (!layer->numpasses) { 667 ++cblk; 668 continue; 669 } 670 671 /* if first instance of cblk --> zero bit-planes information */ 672 if (!cblk->numpasses) { 673 cblk->numlenbits = 3; 674 opj_tgt_encode(bio, prc->imsbtree, cblkno, 999); 675 } 676 677 /* number of coding passes included */ 678 opj_t2_putnumpasses(bio, layer->numpasses); 679 l_nb_passes = cblk->numpasses + layer->numpasses; 680 pass = cblk->passes + cblk->numpasses; 681 682 /* computation of the increase of the length indicator and insertion in the header */ 683 for (passno = cblk->numpasses; passno < l_nb_passes; ++passno) { 684 ++nump; 685 len += pass->len; 686 687 if (pass->term || passno == (cblk->numpasses + layer->numpasses) - 1) { 688 increment = (OPJ_UINT32)opj_int_max((OPJ_INT32)increment, opj_int_floorlog2((OPJ_INT32)len) + 1 689 - ((OPJ_INT32)cblk->numlenbits + opj_int_floorlog2((OPJ_INT32)nump))); 690 len = 0; 691 nump = 0; 692 } 693 694 ++pass; 695 } 696 opj_t2_putcommacode(bio, (OPJ_INT32)increment); 697 698 /* computation of the new Length indicator */ 699 cblk->numlenbits += increment; 700 701 pass = cblk->passes + cblk->numpasses; 702 /* insertion of the codeword segment length */ 703 for (passno = cblk->numpasses; passno < l_nb_passes; ++passno) { 704 nump++; 705 len += pass->len; 706 707 if (pass->term || passno == (cblk->numpasses + layer->numpasses) - 1) { 708 opj_bio_write(bio, (OPJ_UINT32)len, cblk->numlenbits + (OPJ_UINT32)opj_int_floorlog2((OPJ_INT32)nump)); 709 len = 0; 710 nump = 0; 711 } 712 ++pass; 713 } 714 715 ++cblk; 716 } 717 718 ++band; 719 } 720 721 if (!opj_bio_flush(bio)) { 722 opj_bio_destroy(bio); 723 return OPJ_FALSE; /* modified to eliminate longjmp !! */ 724 } 725 726 l_nb_bytes = (OPJ_UINT32)opj_bio_numbytes(bio); 727 c += l_nb_bytes; 728 length -= l_nb_bytes; 729 730 opj_bio_destroy(bio); 731 732 /* <EPH 0xff92> */ 733 if (tcp->csty & J2K_CP_CSTY_EPH) { 734 c[0] = 255; 735 c[1] = 146; 736 c += 2; 737 length -= 2; 738 } 739 /* </EPH> */ 740 741 /* << INDEX */ 742 /* End of packet header position. Currently only represents the distance to start of packet 743 Will be updated later by incrementing with packet start value*/ 744 if(cstr_info && cstr_info->index_write) { 745 opj_packet_info_t *info_PK = &cstr_info->tile[tileno].packet[cstr_info->packno]; 746 info_PK->end_ph_pos = (OPJ_INT32)(c - dest); 747 } 748 /* INDEX >> */ 749 750 /* Writing the packet body */ 751 band = res->bands; 752 for (bandno = 0; bandno < res->numbands; bandno++) { 753 opj_tcd_precinct_t *prc = &band->precincts[precno]; 754 755 l_nb_blocks = prc->cw * prc->ch; 756 cblk = prc->cblks.enc; 757 758 for (cblkno = 0; cblkno < l_nb_blocks; ++cblkno) { 759 opj_tcd_layer_t *layer = &cblk->layers[layno]; 760 761 if (!layer->numpasses) { 762 ++cblk; 763 continue; 764 } 765 766 if (layer->len > length) { 767 return OPJ_FALSE; 768 } 769 770 memcpy(c, layer->data, layer->len); 771 cblk->numpasses += layer->numpasses; 772 c += layer->len; 773 length -= layer->len; 774 775 /* << INDEX */ 776 if(cstr_info && cstr_info->index_write) { 777 opj_packet_info_t *info_PK = &cstr_info->tile[tileno].packet[cstr_info->packno]; 778 info_PK->disto += layer->disto; 779 if (cstr_info->D_max < info_PK->disto) { 780 cstr_info->D_max = info_PK->disto; 781 } 782 } 783 784 ++cblk; 785 /* INDEX >> */ 786 } 787 ++band; 788 } 789 790 assert( c >= dest ); 791 * p_data_written += (OPJ_UINT32)(c - dest); 792 793 return OPJ_TRUE; 794} 795 796static OPJ_BOOL opj_t2_skip_packet( opj_t2_t* p_t2, 797 opj_tcd_tile_t *p_tile, 798 opj_tcp_t *p_tcp, 799 opj_pi_iterator_t *p_pi, 800 OPJ_BYTE *p_src, 801 OPJ_UINT32 * p_data_read, 802 OPJ_UINT32 p_max_length, 803 opj_packet_info_t *p_pack_info, 804 opj_event_mgr_t *p_manager) 805{ 806 OPJ_BOOL l_read_data; 807 OPJ_UINT32 l_nb_bytes_read = 0; 808 OPJ_UINT32 l_nb_total_bytes_read = 0; 809 810 *p_data_read = 0; 811 812 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, p_manager)) { 813 return OPJ_FALSE; 814 } 815 816 p_src += l_nb_bytes_read; 817 l_nb_total_bytes_read += l_nb_bytes_read; 818 p_max_length -= l_nb_bytes_read; 819 820 /* we should read data for the packet */ 821 if (l_read_data) { 822 l_nb_bytes_read = 0; 823 824 if (! opj_t2_skip_packet_data(p_t2,p_tile,p_pi,&l_nb_bytes_read,p_max_length,p_pack_info, p_manager)) { 825 return OPJ_FALSE; 826 } 827 828 l_nb_total_bytes_read += l_nb_bytes_read; 829 } 830 *p_data_read = l_nb_total_bytes_read; 831 832 return OPJ_TRUE; 833} 834 835 836static OPJ_BOOL opj_t2_read_packet_header( opj_t2_t* p_t2, 837 opj_tcd_tile_t *p_tile, 838 opj_tcp_t *p_tcp, 839 opj_pi_iterator_t *p_pi, 840 OPJ_BOOL * p_is_data_present, 841 OPJ_BYTE *p_src_data, 842 OPJ_UINT32 * p_data_read, 843 OPJ_UINT32 p_max_length, 844 opj_packet_info_t *p_pack_info, 845 opj_event_mgr_t *p_manager) 846 847{ 848 /* loop */ 849 OPJ_UINT32 bandno, cblkno; 850 OPJ_UINT32 l_nb_code_blocks; 851 OPJ_UINT32 l_remaining_length; 852 OPJ_UINT32 l_header_length; 853 OPJ_UINT32 * l_modified_length_ptr = 00; 854 OPJ_BYTE *l_current_data = p_src_data; 855 opj_cp_t *l_cp = p_t2->cp; 856 opj_bio_t *l_bio = 00; /* BIO component */ 857 opj_tcd_band_t *l_band = 00; 858 opj_tcd_cblk_dec_t* l_cblk = 00; 859 opj_tcd_resolution_t* l_res = &p_tile->comps[p_pi->compno].resolutions[p_pi->resno]; 860 861 OPJ_BYTE *l_header_data = 00; 862 OPJ_BYTE **l_header_data_start = 00; 863 864 OPJ_UINT32 l_present; 865 866 if (p_pi->layno == 0) { 867 l_band = l_res->bands; 868 869 /* reset tagtrees */ 870 for (bandno = 0; bandno < l_res->numbands; ++bandno) { 871 opj_tcd_precinct_t *l_prc = &l_band->precincts[p_pi->precno]; 872 873 if ( ! ((l_band->x1-l_band->x0 == 0)||(l_band->y1-l_band->y0 == 0)) ) { 874 opj_tgt_reset(l_prc->incltree); 875 opj_tgt_reset(l_prc->imsbtree); 876 l_cblk = l_prc->cblks.dec; 877 878 l_nb_code_blocks = l_prc->cw * l_prc->ch; 879 for (cblkno = 0; cblkno < l_nb_code_blocks; ++cblkno) { 880 l_cblk->numsegs = 0; 881 l_cblk->real_num_segs = 0; 882 ++l_cblk; 883 } 884 } 885 886 ++l_band; 887 } 888 } 889 890 /* SOP markers */ 891 892 if (p_tcp->csty & J2K_CP_CSTY_SOP) { 893 if (p_max_length < 6) { 894 opj_event_msg(p_manager, EVT_WARNING, "Not enough space for expected SOP marker\n"); 895 } else if ((*l_current_data) != 0xff || (*(l_current_data + 1) != 0x91)) { 896 opj_event_msg(p_manager, EVT_WARNING, "Expected SOP marker\n"); 897 } else { 898 l_current_data += 6; 899 } 900 901 /** TODO : check the Nsop value */ 902 } 903 904 /* 905 When the marker PPT/PPM is used the packet header are store in PPT/PPM marker 906 This part deal with this caracteristic 907 step 1: Read packet header in the saved structure 908 step 2: Return to codestream for decoding 909 */ 910 911 l_bio = opj_bio_create(); 912 if (! l_bio) { 913 return OPJ_FALSE; 914 } 915 916 if (l_cp->ppm == 1) { /* PPM */ 917 l_header_data_start = &l_cp->ppm_data; 918 l_header_data = *l_header_data_start; 919 l_modified_length_ptr = &(l_cp->ppm_len); 920 921 } 922 else if (p_tcp->ppt == 1) { /* PPT */ 923 l_header_data_start = &(p_tcp->ppt_data); 924 l_header_data = *l_header_data_start; 925 l_modified_length_ptr = &(p_tcp->ppt_len); 926 } 927 else { /* Normal Case */ 928 l_header_data_start = &(l_current_data); 929 l_header_data = *l_header_data_start; 930 l_remaining_length = (OPJ_UINT32)(p_src_data+p_max_length-l_header_data); 931 l_modified_length_ptr = &(l_remaining_length); 932 } 933 934 opj_bio_init_dec(l_bio, l_header_data,*l_modified_length_ptr); 935 936 l_present = opj_bio_read(l_bio, 1); 937 JAS_FPRINTF(stderr, "present=%d \n", l_present ); 938 if (!l_present) { 939 /* TODO MSD: no test to control the output of this function*/ 940 opj_bio_inalign(l_bio); 941 l_header_data += opj_bio_numbytes(l_bio); 942 opj_bio_destroy(l_bio); 943 944 /* EPH markers */ 945 if (p_tcp->csty & J2K_CP_CSTY_EPH) { 946 if ((*l_modified_length_ptr - (OPJ_UINT32)(l_header_data - *l_header_data_start)) < 2U) { 947 opj_event_msg(p_manager, EVT_WARNING, "Not enough space for expected EPH marker\n"); 948 } else if ((*l_header_data) != 0xff || (*(l_header_data + 1) != 0x92)) { 949 opj_event_msg(p_manager, EVT_WARNING, "Expected EPH marker\n"); 950 } else { 951 l_header_data += 2; 952 } 953 } 954 955 l_header_length = (OPJ_UINT32)(l_header_data - *l_header_data_start); 956 *l_modified_length_ptr -= l_header_length; 957 *l_header_data_start += l_header_length; 958 959 /* << INDEX */ 960 /* End of packet header position. Currently only represents the distance to start of packet 961 Will be updated later by incrementing with packet start value */ 962 if (p_pack_info) { 963 p_pack_info->end_ph_pos = (OPJ_INT32)(l_current_data - p_src_data); 964 } 965 /* INDEX >> */ 966 967 * p_is_data_present = OPJ_FALSE; 968 *p_data_read = (OPJ_UINT32)(l_current_data - p_src_data); 969 return OPJ_TRUE; 970 } 971 972 l_band = l_res->bands; 973 for (bandno = 0; bandno < l_res->numbands; ++bandno) { 974 opj_tcd_precinct_t *l_prc = &(l_band->precincts[p_pi->precno]); 975 976 if ((l_band->x1-l_band->x0 == 0)||(l_band->y1-l_band->y0 == 0)) { 977 ++l_band; 978 continue; 979 } 980 981 l_nb_code_blocks = l_prc->cw * l_prc->ch; 982 l_cblk = l_prc->cblks.dec; 983 for (cblkno = 0; cblkno < l_nb_code_blocks; cblkno++) { 984 OPJ_UINT32 l_included,l_increment, l_segno; 985 OPJ_INT32 n; 986 987 /* if cblk not yet included before --> inclusion tagtree */ 988 if (!l_cblk->numsegs) { 989 l_included = opj_tgt_decode(l_bio, l_prc->incltree, cblkno, (OPJ_INT32)(p_pi->layno + 1)); 990 /* else one bit */ 991 } 992 else { 993 l_included = opj_bio_read(l_bio, 1); 994 } 995 996 /* if cblk not included */ 997 if (!l_included) { 998 l_cblk->numnewpasses = 0; 999 ++l_cblk; 1000 JAS_FPRINTF(stderr, "included=%d \n", l_included); 1001 continue; 1002 } 1003 1004 /* if cblk not yet included --> zero-bitplane tagtree */ 1005 if (!l_cblk->numsegs) { 1006 OPJ_UINT32 i = 0; 1007 1008 while (!opj_tgt_decode(l_bio, l_prc->imsbtree, cblkno, (OPJ_INT32)i)) { 1009 ++i; 1010 } 1011 1012 l_cblk->numbps = (OPJ_UINT32)l_band->numbps + 1 - i; 1013 l_cblk->numlenbits = 3; 1014 } 1015 1016 /* number of coding passes */ 1017 l_cblk->numnewpasses = opj_t2_getnumpasses(l_bio); 1018 l_increment = opj_t2_getcommacode(l_bio); 1019 1020 /* length indicator increment */ 1021 l_cblk->numlenbits += l_increment; 1022 l_segno = 0; 1023 1024 if (!l_cblk->numsegs) { 1025 if (! opj_t2_init_seg(l_cblk, l_segno, p_tcp->tccps[p_pi->compno].cblksty, 1)) { 1026 opj_bio_destroy(l_bio); 1027 return OPJ_FALSE; 1028 } 1029 } 1030 else { 1031 l_segno = l_cblk->numsegs - 1; 1032 if (l_cblk->segs[l_segno].numpasses == l_cblk->segs[l_segno].maxpasses) { 1033 ++l_segno; 1034 if (! opj_t2_init_seg(l_cblk, l_segno, p_tcp->tccps[p_pi->compno].cblksty, 0)) { 1035 opj_bio_destroy(l_bio); 1036 return OPJ_FALSE; 1037 } 1038 } 1039 } 1040 n = (OPJ_INT32)l_cblk->numnewpasses; 1041 1042 do { 1043 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); 1044 l_cblk->segs[l_segno].newlen = opj_bio_read(l_bio, l_cblk->numlenbits + opj_uint_floorlog2(l_cblk->segs[l_segno].numnewpasses)); 1045 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 ); 1046 1047 n -= (OPJ_INT32)l_cblk->segs[l_segno].numnewpasses; 1048 if (n > 0) { 1049 ++l_segno; 1050 1051 if (! opj_t2_init_seg(l_cblk, l_segno, p_tcp->tccps[p_pi->compno].cblksty, 0)) { 1052 opj_bio_destroy(l_bio); 1053 return OPJ_FALSE; 1054 } 1055 } 1056 } while (n > 0); 1057 1058 ++l_cblk; 1059 } 1060 1061 ++l_band; 1062 } 1063 1064 if (!opj_bio_inalign(l_bio)) { 1065 opj_bio_destroy(l_bio); 1066 return OPJ_FALSE; 1067 } 1068 1069 l_header_data += opj_bio_numbytes(l_bio); 1070 opj_bio_destroy(l_bio); 1071 1072 /* EPH markers */ 1073 if (p_tcp->csty & J2K_CP_CSTY_EPH) { 1074 if ((*l_modified_length_ptr - (OPJ_UINT32)(l_header_data - *l_header_data_start)) < 2U) { 1075 opj_event_msg(p_manager, EVT_WARNING, "Not enough space for expected EPH marker\n"); 1076 } else if ((*l_header_data) != 0xff || (*(l_header_data + 1) != 0x92)) { 1077 opj_event_msg(p_manager, EVT_WARNING, "Expected EPH marker\n"); 1078 } else { 1079 l_header_data += 2; 1080 } 1081 } 1082 1083 l_header_length = (OPJ_UINT32)(l_header_data - *l_header_data_start); 1084 JAS_FPRINTF( stderr, "hdrlen=%d \n", l_header_length ); 1085 JAS_FPRINTF( stderr, "packet body\n"); 1086 *l_modified_length_ptr -= l_header_length; 1087 *l_header_data_start += l_header_length; 1088 1089 /* << INDEX */ 1090 /* End of packet header position. Currently only represents the distance to start of packet 1091 Will be updated later by incrementing with packet start value */ 1092 if (p_pack_info) { 1093 p_pack_info->end_ph_pos = (OPJ_INT32)(l_current_data - p_src_data); 1094 } 1095 /* INDEX >> */ 1096 1097 *p_is_data_present = OPJ_TRUE; 1098 *p_data_read = (OPJ_UINT32)(l_current_data - p_src_data); 1099 1100 return OPJ_TRUE; 1101} 1102 1103static OPJ_BOOL opj_t2_read_packet_data( opj_t2_t* p_t2, 1104 opj_tcd_tile_t *p_tile, 1105 opj_pi_iterator_t *p_pi, 1106 OPJ_BYTE *p_src_data, 1107 OPJ_UINT32 * p_data_read, 1108 OPJ_UINT32 p_max_length, 1109 opj_packet_info_t *pack_info, 1110 opj_event_mgr_t* p_manager) 1111{ 1112 OPJ_UINT32 bandno, cblkno; 1113 OPJ_UINT32 l_nb_code_blocks; 1114 OPJ_BYTE *l_current_data = p_src_data; 1115 opj_tcd_band_t *l_band = 00; 1116 opj_tcd_cblk_dec_t* l_cblk = 00; 1117 opj_tcd_resolution_t* l_res = &p_tile->comps[p_pi->compno].resolutions[p_pi->resno]; 1118 1119 OPJ_ARG_NOT_USED(p_t2); 1120 OPJ_ARG_NOT_USED(pack_info); 1121 1122 l_band = l_res->bands; 1123 for (bandno = 0; bandno < l_res->numbands; ++bandno) { 1124 opj_tcd_precinct_t *l_prc = &l_band->precincts[p_pi->precno]; 1125 1126 if ((l_band->x1-l_band->x0 == 0)||(l_band->y1-l_band->y0 == 0)) { 1127 ++l_band; 1128 continue; 1129 } 1130 1131 l_nb_code_blocks = l_prc->cw * l_prc->ch; 1132 l_cblk = l_prc->cblks.dec; 1133 1134 for (cblkno = 0; cblkno < l_nb_code_blocks; ++cblkno) { 1135 opj_tcd_seg_t *l_seg = 00; 1136 1137 if (!l_cblk->numnewpasses) { 1138 /* nothing to do */ 1139 ++l_cblk; 1140 continue; 1141 } 1142 1143 if (!l_cblk->numsegs) { 1144 l_seg = l_cblk->segs; 1145 ++l_cblk->numsegs; 1146 l_cblk->data_current_size = 0; 1147 } 1148 else { 1149 l_seg = &l_cblk->segs[l_cblk->numsegs - 1]; 1150 1151 if (l_seg->numpasses == l_seg->maxpasses) { 1152 ++l_seg; 1153 ++l_cblk->numsegs; 1154 } 1155 } 1156 1157 do { 1158 /* Check possible overflow (on l_current_data only, assumes input args already checked) then size */ 1159 if ((((OPJ_SIZE_T)l_current_data + (OPJ_SIZE_T)l_seg->newlen) < (OPJ_SIZE_T)l_current_data) || (l_current_data + l_seg->newlen > p_src_data + p_max_length)) { 1160 opj_event_msg(p_manager, EVT_ERROR, "read: segment too long (%d) with max (%d) for codeblock %d (p=%d, b=%d, r=%d, c=%d)\n", 1161 l_seg->newlen, p_max_length, cblkno, p_pi->precno, bandno, p_pi->resno, p_pi->compno); 1162 return OPJ_FALSE; 1163 } 1164 1165#ifdef USE_JPWL 1166 /* we need here a j2k handle to verify if making a check to 1167 the validity of cblocks parameters is selected from user (-W) */ 1168 1169 /* let's check that we are not exceeding */ 1170 if ((l_cblk->len + l_seg->newlen) > 8192) { 1171 opj_event_msg(p_manager, EVT_WARNING, 1172 "JPWL: segment too long (%d) for codeblock %d (p=%d, b=%d, r=%d, c=%d)\n", 1173 l_seg->newlen, cblkno, p_pi->precno, bandno, p_pi->resno, p_pi->compno); 1174 if (!JPWL_ASSUME) { 1175 opj_event_msg(p_manager, EVT_ERROR, "JPWL: giving up\n"); 1176 return OPJ_FALSE; 1177 } 1178 l_seg->newlen = 8192 - l_cblk->len; 1179 opj_event_msg(p_manager, EVT_WARNING, " - truncating segment to %d\n", l_seg->newlen); 1180 break; 1181 }; 1182 1183#endif /* USE_JPWL */ 1184 /* Check possible overflow on size */ 1185 if ((l_cblk->data_current_size + l_seg->newlen) < l_cblk->data_current_size) { 1186 opj_event_msg(p_manager, EVT_ERROR, "read: segment too long (%d) with current size (%d > %d) for codeblock %d (p=%d, b=%d, r=%d, c=%d)\n", 1187 l_seg->newlen, l_cblk->data_current_size, 0xFFFFFFFF - l_seg->newlen, cblkno, p_pi->precno, bandno, p_pi->resno, p_pi->compno); 1188 return OPJ_FALSE; 1189 } 1190 /* Check if the cblk->data have allocated enough memory */ 1191 if ((l_cblk->data_current_size + l_seg->newlen) > l_cblk->data_max_size) { 1192 OPJ_BYTE* new_cblk_data = (OPJ_BYTE*) opj_realloc(l_cblk->data, l_cblk->data_current_size + l_seg->newlen); 1193 if(! new_cblk_data) { 1194 opj_free(l_cblk->data); 1195 l_cblk->data = NULL; 1196 l_cblk->data_max_size = 0; 1197 /* opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to realloc code block cata!\n"); */ 1198 return OPJ_FALSE; 1199 } 1200 l_cblk->data_max_size = l_cblk->data_current_size + l_seg->newlen; 1201 l_cblk->data = new_cblk_data; 1202 } 1203 1204 memcpy(l_cblk->data + l_cblk->data_current_size, l_current_data, l_seg->newlen); 1205 1206 if (l_seg->numpasses == 0) { 1207 l_seg->data = &l_cblk->data; 1208 l_seg->dataindex = l_cblk->data_current_size; 1209 } 1210 1211 l_current_data += l_seg->newlen; 1212 l_seg->numpasses += l_seg->numnewpasses; 1213 l_cblk->numnewpasses -= l_seg->numnewpasses; 1214 1215 l_seg->real_num_passes = l_seg->numpasses; 1216 l_cblk->data_current_size += l_seg->newlen; 1217 l_seg->len += l_seg->newlen; 1218 1219 if (l_cblk->numnewpasses > 0) { 1220 ++l_seg; 1221 ++l_cblk->numsegs; 1222 } 1223 } while (l_cblk->numnewpasses > 0); 1224 1225 l_cblk->real_num_segs = l_cblk->numsegs; 1226 ++l_cblk; 1227 } /* next code_block */ 1228 1229 ++l_band; 1230 } 1231 1232 *(p_data_read) = (OPJ_UINT32)(l_current_data - p_src_data); 1233 1234 1235 return OPJ_TRUE; 1236} 1237 1238static OPJ_BOOL opj_t2_skip_packet_data( opj_t2_t* p_t2, 1239 opj_tcd_tile_t *p_tile, 1240 opj_pi_iterator_t *p_pi, 1241 OPJ_UINT32 * p_data_read, 1242 OPJ_UINT32 p_max_length, 1243 opj_packet_info_t *pack_info, 1244 opj_event_mgr_t *p_manager) 1245{ 1246 OPJ_UINT32 bandno, cblkno; 1247 OPJ_UINT32 l_nb_code_blocks; 1248 opj_tcd_band_t *l_band = 00; 1249 opj_tcd_cblk_dec_t* l_cblk = 00; 1250 opj_tcd_resolution_t* l_res = &p_tile->comps[p_pi->compno].resolutions[p_pi->resno]; 1251 1252 OPJ_ARG_NOT_USED(p_t2); 1253 OPJ_ARG_NOT_USED(pack_info); 1254 1255 *p_data_read = 0; 1256 l_band = l_res->bands; 1257 1258 for (bandno = 0; bandno < l_res->numbands; ++bandno) { 1259 opj_tcd_precinct_t *l_prc = &l_band->precincts[p_pi->precno]; 1260 1261 if ((l_band->x1-l_band->x0 == 0)||(l_band->y1-l_band->y0 == 0)) { 1262 ++l_band; 1263 continue; 1264 } 1265 1266 l_nb_code_blocks = l_prc->cw * l_prc->ch; 1267 l_cblk = l_prc->cblks.dec; 1268 1269 for (cblkno = 0; cblkno < l_nb_code_blocks; ++cblkno) { 1270 opj_tcd_seg_t *l_seg = 00; 1271 1272 if (!l_cblk->numnewpasses) { 1273 /* nothing to do */ 1274 ++l_cblk; 1275 continue; 1276 } 1277 1278 if (!l_cblk->numsegs) { 1279 l_seg = l_cblk->segs; 1280 ++l_cblk->numsegs; 1281 l_cblk->data_current_size = 0; 1282 } 1283 else { 1284 l_seg = &l_cblk->segs[l_cblk->numsegs - 1]; 1285 1286 if (l_seg->numpasses == l_seg->maxpasses) { 1287 ++l_seg; 1288 ++l_cblk->numsegs; 1289 } 1290 } 1291 1292 do { 1293 /* Check possible overflow then size */ 1294 if (((*p_data_read + l_seg->newlen) < (*p_data_read)) || ((*p_data_read + l_seg->newlen) > p_max_length)) { 1295 opj_event_msg(p_manager, EVT_ERROR, "skip: segment too long (%d) with max (%d) for codeblock %d (p=%d, b=%d, r=%d, c=%d)\n", 1296 l_seg->newlen, p_max_length, cblkno, p_pi->precno, bandno, p_pi->resno, p_pi->compno); 1297 return OPJ_FALSE; 1298 } 1299 1300#ifdef USE_JPWL 1301 /* we need here a j2k handle to verify if making a check to 1302 the validity of cblocks parameters is selected from user (-W) */ 1303 1304 /* let's check that we are not exceeding */ 1305 if ((l_cblk->len + l_seg->newlen) > 8192) { 1306 opj_event_msg(p_manager, EVT_WARNING, 1307 "JPWL: segment too long (%d) for codeblock %d (p=%d, b=%d, r=%d, c=%d)\n", 1308 l_seg->newlen, cblkno, p_pi->precno, bandno, p_pi->resno, p_pi->compno); 1309 if (!JPWL_ASSUME) { 1310 opj_event_msg(p_manager, EVT_ERROR, "JPWL: giving up\n"); 1311 return -999; 1312 } 1313 l_seg->newlen = 8192 - l_cblk->len; 1314 opj_event_msg(p_manager, EVT_WARNING, " - truncating segment to %d\n", l_seg->newlen); 1315 break; 1316 }; 1317 1318#endif /* USE_JPWL */ 1319 JAS_FPRINTF(stderr, "p_data_read (%d) newlen (%d) \n", *p_data_read, l_seg->newlen ); 1320 *(p_data_read) += l_seg->newlen; 1321 1322 l_seg->numpasses += l_seg->numnewpasses; 1323 l_cblk->numnewpasses -= l_seg->numnewpasses; 1324 if (l_cblk->numnewpasses > 0) 1325 { 1326 ++l_seg; 1327 ++l_cblk->numsegs; 1328 } 1329 } while (l_cblk->numnewpasses > 0); 1330 1331 ++l_cblk; 1332 } 1333 1334 ++l_band; 1335 } 1336 1337 return OPJ_TRUE; 1338} 1339 1340 1341OPJ_BOOL opj_t2_init_seg( opj_tcd_cblk_dec_t* cblk, 1342 OPJ_UINT32 index, 1343 OPJ_UINT32 cblksty, 1344 OPJ_UINT32 first) 1345{ 1346 opj_tcd_seg_t* seg = 00; 1347 OPJ_UINT32 l_nb_segs = index + 1; 1348 1349 if (l_nb_segs > cblk->m_current_max_segs) { 1350 opj_tcd_seg_t* new_segs; 1351 cblk->m_current_max_segs += OPJ_J2K_DEFAULT_NB_SEGS; 1352 1353 new_segs = (opj_tcd_seg_t*) opj_realloc(cblk->segs, cblk->m_current_max_segs * sizeof(opj_tcd_seg_t)); 1354 if(! new_segs) { 1355 opj_free(cblk->segs); 1356 cblk->segs = NULL; 1357 cblk->m_current_max_segs = 0; 1358 /* opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to initialize segment %d\n", l_nb_segs); */ 1359 return OPJ_FALSE; 1360 } 1361 cblk->segs = new_segs; 1362 } 1363 1364 seg = &cblk->segs[index]; 1365 memset(seg,0,sizeof(opj_tcd_seg_t)); 1366 1367 if (cblksty & J2K_CCP_CBLKSTY_TERMALL) { 1368 seg->maxpasses = 1; 1369 } 1370 else if (cblksty & J2K_CCP_CBLKSTY_LAZY) { 1371 if (first) { 1372 seg->maxpasses = 10; 1373 } else { 1374 seg->maxpasses = (((seg - 1)->maxpasses == 1) || ((seg - 1)->maxpasses == 10)) ? 2 : 1; 1375 } 1376 } else { 1377 seg->maxpasses = 109; 1378 } 1379 1380 return OPJ_TRUE; 1381} 1382