| /* | |
| * The copyright in this software is being made available under the 2-clauses | |
| * BSD License, included below. This software may be subject to other third | |
| * party and contributor rights, including patent rights, and no such rights | |
| * are granted under this license. | |
| * | |
| * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium | |
| * Copyright (c) 2002-2014, Professor Benoit Macq | |
| * Copyright (c) 2001-2003, David Janssens | |
| * Copyright (c) 2002-2003, Yannick Verschueren | |
| * Copyright (c) 2003-2007, Francois-Olivier Devaux | |
| * Copyright (c) 2003-2014, Antonin Descampe | |
| * Copyright (c) 2005, Herve Drolon, FreeImage Team | |
| * Copyright (c) 2008, 2011-2012, Centre National d'Etudes Spatiales (CNES), FR | |
| * Copyright (c) 2012, CS Systemes d'Information, France | |
| * Copyright (c) 2017, IntoPIX SA <support@intopix.com> | |
| * All rights reserved. | |
| * | |
| * Redistribution and use in source and binary forms, with or without | |
| * modification, are permitted provided that the following conditions | |
| * are met: | |
| * 1. Redistributions of source code must retain the above copyright | |
| * notice, this list of conditions and the following disclaimer. | |
| * 2. Redistributions in binary form must reproduce the above copyright | |
| * notice, this list of conditions and the following disclaimer in the | |
| * documentation and/or other materials provided with the distribution. | |
| * | |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS' | |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
| * POSSIBILITY OF SUCH DAMAGE. | |
| */ | |
| #include "opj_includes.h" | |
| #include "opj_common.h" | |
| /** @defgroup T2 T2 - Implementation of a tier-2 coding */ | |
| /*@{*/ | |
| /** @name Local static functions */ | |
| /*@{*/ | |
| static void opj_t2_putcommacode(opj_bio_t *bio, OPJ_INT32 n); | |
| static OPJ_UINT32 opj_t2_getcommacode(opj_bio_t *bio); | |
| /** | |
| Variable length code for signalling delta Zil (truncation point) | |
| @param bio Bit Input/Output component | |
| @param n delta Zil | |
| */ | |
| static void opj_t2_putnumpasses(opj_bio_t *bio, OPJ_UINT32 n); | |
| static OPJ_UINT32 opj_t2_getnumpasses(opj_bio_t *bio); | |
| /** | |
| Encode a packet of a tile to a destination buffer | |
| @param tileno Number of the tile encoded | |
| @param tile Tile for which to write the packets | |
| @param tcp Tile coding parameters | |
| @param pi Packet identity | |
| @param dest Destination buffer | |
| @param p_data_written FIXME DOC | |
| @param len Length of the destination buffer | |
| @param cstr_info Codestream information structure | |
| @param p_t2_mode If == THRESH_CALC In Threshold calculation ,If == FINAL_PASS Final pass | |
| @param p_manager the user event manager | |
| @return | |
| */ | |
| static OPJ_BOOL 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 len, | |
| opj_codestream_info_t *cstr_info, | |
| J2K_T2_MODE p_t2_mode, | |
| opj_event_mgr_t *p_manager); | |
| /** | |
| Decode a packet of a tile from a source buffer | |
| @param t2 T2 handle | |
| @param tile Tile for which to write the packets | |
| @param tcp Tile coding parameters | |
| @param pi Packet identity | |
| @param src Source buffer | |
| @param data_read FIXME DOC | |
| @param max_length FIXME DOC | |
| @param pack_info Packet information | |
| @param p_manager the user event manager | |
| @return FIXME DOC | |
| */ | |
| static OPJ_BOOL opj_t2_decode_packet(opj_t2_t* t2, | |
| opj_tcd_tile_t *tile, | |
| opj_tcp_t *tcp, | |
| opj_pi_iterator_t *pi, | |
| OPJ_BYTE *src, | |
| OPJ_UINT32 * data_read, | |
| OPJ_UINT32 max_length, | |
| opj_packet_info_t *pack_info, | |
| opj_event_mgr_t *p_manager); | |
| static OPJ_BOOL 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, | |
| opj_event_mgr_t *p_manager); | |
| static OPJ_BOOL 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, | |
| opj_event_mgr_t *p_manager); | |
| static OPJ_BOOL 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, | |
| opj_event_mgr_t *p_manager); | |
| static OPJ_BOOL 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, | |
| opj_event_mgr_t *p_manager); | |
| /** | |
| @param cblk | |
| @param index | |
| @param cblksty | |
| @param first | |
| */ | |
| static OPJ_BOOL opj_t2_init_seg(opj_tcd_cblk_dec_t* cblk, | |
| OPJ_UINT32 index, | |
| OPJ_UINT32 cblksty, | |
| OPJ_UINT32 first); | |
| /*@}*/ | |
| /*@}*/ | |
| /* ----------------------------------------------------------------------- */ | |
| /* #define RESTART 0x04 */ | |
| static void opj_t2_putcommacode(opj_bio_t *bio, OPJ_INT32 n) | |
| { | |
| while (--n >= 0) { | |
| opj_bio_putbit(bio, 1); | |
| } | |
| opj_bio_putbit(bio, 0); | |
| } | |
| static OPJ_UINT32 opj_t2_getcommacode(opj_bio_t *bio) | |
| { | |
| OPJ_UINT32 n = 0; | |
| while (opj_bio_read(bio, 1)) { | |
| ++n; | |
| } | |
| return n; | |
| } | |
| static void opj_t2_putnumpasses(opj_bio_t *bio, OPJ_UINT32 n) | |
| { | |
| if (n == 1) { | |
| opj_bio_putbit(bio, 0); | |
| } else if (n == 2) { | |
| opj_bio_write(bio, 2, 2); | |
| } else if (n <= 5) { | |
| opj_bio_write(bio, 0xc | (n - 3), 4); | |
| } else if (n <= 36) { | |
| opj_bio_write(bio, 0x1e0 | (n - 6), 9); | |
| } else if (n <= 164) { | |
| opj_bio_write(bio, 0xff80 | (n - 37), 16); | |
| } | |
| } | |
| static OPJ_UINT32 opj_t2_getnumpasses(opj_bio_t *bio) | |
| { | |
| OPJ_UINT32 n; | |
| if (!opj_bio_read(bio, 1)) { | |
| return 1; | |
| } | |
| if (!opj_bio_read(bio, 1)) { | |
| return 2; | |
| } | |
| if ((n = opj_bio_read(bio, 2)) != 3) { | |
| return (3 + n); | |
| } | |
| if ((n = opj_bio_read(bio, 5)) != 31) { | |
| return (6 + n); | |
| } | |
| return (37 + opj_bio_read(bio, 7)); | |
| } | |
| /* ----------------------------------------------------------------------- */ | |
| OPJ_BOOL 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_tcd_marker_info_t* p_marker_info, | |
| OPJ_UINT32 p_tp_num, | |
| OPJ_INT32 p_tp_pos, | |
| OPJ_UINT32 p_pino, | |
| J2K_T2_MODE p_t2_mode, | |
| opj_event_mgr_t *p_manager) | |
| { | |
| OPJ_BYTE *l_current_data = p_dest; | |
| OPJ_UINT32 l_nb_bytes = 0; | |
| OPJ_UINT32 compno; | |
| OPJ_UINT32 poc; | |
| opj_pi_iterator_t *l_pi = 00; | |
| opj_pi_iterator_t *l_current_pi = 00; | |
| opj_image_t *l_image = p_t2->image; | |
| opj_cp_t *l_cp = p_t2->cp; | |
| opj_tcp_t *l_tcp = &l_cp->tcps[p_tile_no]; | |
| OPJ_UINT32 pocno = (l_cp->rsiz == OPJ_PROFILE_CINEMA_4K) ? 2 : 1; | |
| OPJ_UINT32 l_max_comp = l_cp->m_specific_param.m_enc.m_max_comp_size > 0 ? | |
| l_image->numcomps : 1; | |
| OPJ_UINT32 l_nb_pocs = l_tcp->numpocs + 1; | |
| l_pi = opj_pi_initialise_encode(l_image, l_cp, p_tile_no, p_t2_mode, p_manager); | |
| if (!l_pi) { | |
| return OPJ_FALSE; | |
| } | |
| * p_data_written = 0; | |
| if (p_t2_mode == THRESH_CALC) { /* Calculating threshold */ | |
| l_current_pi = l_pi; | |
| for (compno = 0; compno < l_max_comp; ++compno) { | |
| OPJ_UINT32 l_comp_len = 0; | |
| l_current_pi = l_pi; | |
| for (poc = 0; poc < pocno ; ++poc) { | |
| OPJ_UINT32 l_tp_num = compno; | |
| /* TODO MSD : check why this function cannot fail (cf. v1) */ | |
| opj_pi_create_encode(l_pi, l_cp, p_tile_no, poc, l_tp_num, p_tp_pos, p_t2_mode); | |
| if (l_current_pi->poc.prg == OPJ_PROG_UNKNOWN) { | |
| /* TODO ADE : add an error */ | |
| opj_pi_destroy(l_pi, l_nb_pocs); | |
| return OPJ_FALSE; | |
| } | |
| while (opj_pi_next(l_current_pi)) { | |
| if (l_current_pi->layno < p_maxlayers) { | |
| l_nb_bytes = 0; | |
| 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, | |
| p_t2_mode, | |
| p_manager)) { | |
| opj_pi_destroy(l_pi, l_nb_pocs); | |
| return OPJ_FALSE; | |
| } | |
| l_comp_len += l_nb_bytes; | |
| l_current_data += l_nb_bytes; | |
| p_max_len -= l_nb_bytes; | |
| * p_data_written += l_nb_bytes; | |
| } | |
| } | |
| if (l_cp->m_specific_param.m_enc.m_max_comp_size) { | |
| if (l_comp_len > l_cp->m_specific_param.m_enc.m_max_comp_size) { | |
| opj_pi_destroy(l_pi, l_nb_pocs); | |
| return OPJ_FALSE; | |
| } | |
| } | |
| ++l_current_pi; | |
| } | |
| } | |
| } else { /* t2_mode == FINAL_PASS */ | |
| opj_pi_create_encode(l_pi, l_cp, p_tile_no, p_pino, p_tp_num, p_tp_pos, | |
| p_t2_mode); | |
| l_current_pi = &l_pi[p_pino]; | |
| if (l_current_pi->poc.prg == OPJ_PROG_UNKNOWN) { | |
| /* TODO ADE : add an error */ | |
| opj_pi_destroy(l_pi, l_nb_pocs); | |
| return OPJ_FALSE; | |
| } | |
| if (p_marker_info && p_marker_info->need_PLT) { | |
| /* One time use intended */ | |
| assert(p_marker_info->packet_count == 0); | |
| assert(p_marker_info->p_packet_size == NULL); | |
| p_marker_info->p_packet_size = (OPJ_UINT32*) opj_malloc( | |
| opj_get_encoding_packet_count(l_image, l_cp, p_tile_no) * sizeof(OPJ_UINT32)); | |
| if (p_marker_info->p_packet_size == NULL) { | |
| opj_pi_destroy(l_pi, l_nb_pocs); | |
| return OPJ_FALSE; | |
| } | |
| } | |
| while (opj_pi_next(l_current_pi)) { | |
| if (l_current_pi->layno < p_maxlayers) { | |
| l_nb_bytes = 0; | |
| 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, p_t2_mode, p_manager)) { | |
| opj_pi_destroy(l_pi, l_nb_pocs); | |
| return OPJ_FALSE; | |
| } | |
| l_current_data += l_nb_bytes; | |
| p_max_len -= l_nb_bytes; | |
| * p_data_written += l_nb_bytes; | |
| if (p_marker_info && p_marker_info->need_PLT) { | |
| p_marker_info->p_packet_size[p_marker_info->packet_count] = l_nb_bytes; | |
| p_marker_info->packet_count ++; | |
| } | |
| /* INDEX >> */ | |
| if (cstr_info) { | |
| if (cstr_info->index_write) { | |
| opj_tile_info_t *info_TL = &cstr_info->tile[p_tile_no]; | |
| opj_packet_info_t *info_PK = &info_TL->packet[cstr_info->packno]; | |
| if (!cstr_info->packno) { | |
| info_PK->start_pos = info_TL->end_header + 1; | |
| } else { | |
| 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; | |
| } | |
| info_PK->end_pos = info_PK->start_pos + l_nb_bytes - 1; | |
| info_PK->end_ph_pos += info_PK->start_pos - | |
| 1; /* End of packet header which now only represents the distance | |
| to start of packet is incremented by value of start of packet*/ | |
| } | |
| cstr_info->packno++; | |
| } | |
| /* << INDEX */ | |
| ++p_tile->packno; | |
| } | |
| } | |
| } | |
| opj_pi_destroy(l_pi, l_nb_pocs); | |
| return OPJ_TRUE; | |
| } | |
| /* see issue 80 */ | |
| #if 0 | |
| #define JAS_FPRINTF fprintf | |
| #else | |
| /* issue 290 */ | |
| static void opj_null_jas_fprintf(FILE* file, const char * format, ...) | |
| { | |
| (void)file; | |
| (void)format; | |
| } | |
| #define JAS_FPRINTF opj_null_jas_fprintf | |
| #endif | |
| OPJ_BOOL opj_t2_decode_packets(opj_tcd_t* tcd, | |
| 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, | |
| opj_event_mgr_t *p_manager) | |
| { | |
| OPJ_BYTE *l_current_data = p_src; | |
| opj_pi_iterator_t *l_pi = 00; | |
| OPJ_UINT32 pino; | |
| opj_image_t *l_image = p_t2->image; | |
| opj_cp_t *l_cp = p_t2->cp; | |
| opj_tcp_t *l_tcp = &(p_t2->cp->tcps[p_tile_no]); | |
| OPJ_UINT32 l_nb_bytes_read; | |
| OPJ_UINT32 l_nb_pocs = l_tcp->numpocs + 1; | |
| opj_pi_iterator_t *l_current_pi = 00; | |
| #ifdef TODO_MSD | |
| OPJ_UINT32 curtp = 0; | |
| OPJ_UINT32 tp_start_packno; | |
| #endif | |
| opj_packet_info_t *l_pack_info = 00; | |
| opj_image_comp_t* l_img_comp = 00; | |
| OPJ_ARG_NOT_USED(p_cstr_index); | |
| #ifdef TODO_MSD | |
| if (p_cstr_index) { | |
| l_pack_info = p_cstr_index->tile_index[p_tile_no].packet; | |
| } | |
| #endif | |
| /* create a packet iterator */ | |
| l_pi = opj_pi_create_decode(l_image, l_cp, p_tile_no, p_manager); | |
| if (!l_pi) { | |
| return OPJ_FALSE; | |
| } | |
| l_current_pi = l_pi; | |
| for (pino = 0; pino <= l_tcp->numpocs; ++pino) { | |
| /* if the resolution needed is too low, one dim of the tilec could be equal to zero | |
| * and no packets are used to decode this resolution and | |
| * l_current_pi->resno is always >= p_tile->comps[l_current_pi->compno].minimum_num_resolutions | |
| * and no l_img_comp->resno_decoded are computed | |
| */ | |
| OPJ_BOOL* first_pass_failed = NULL; | |
| if (l_current_pi->poc.prg == OPJ_PROG_UNKNOWN) { | |
| /* TODO ADE : add an error */ | |
| opj_pi_destroy(l_pi, l_nb_pocs); | |
| return OPJ_FALSE; | |
| } | |
| first_pass_failed = (OPJ_BOOL*)opj_malloc(l_image->numcomps * sizeof(OPJ_BOOL)); | |
| if (!first_pass_failed) { | |
| opj_pi_destroy(l_pi, l_nb_pocs); | |
| return OPJ_FALSE; | |
| } | |
| memset(first_pass_failed, OPJ_TRUE, l_image->numcomps * sizeof(OPJ_BOOL)); | |
| while (opj_pi_next(l_current_pi)) { | |
| OPJ_BOOL skip_packet = OPJ_FALSE; | |
| JAS_FPRINTF(stderr, | |
| "packet offset=00000166 prg=%d cmptno=%02d rlvlno=%02d prcno=%03d lyrno=%02d\n\n", | |
| l_current_pi->poc.prg1, l_current_pi->compno, l_current_pi->resno, | |
| l_current_pi->precno, l_current_pi->layno); | |
| /* If the packet layer is greater or equal than the maximum */ | |
| /* number of layers, skip the packet */ | |
| if (l_current_pi->layno >= l_tcp->num_layers_to_decode) { | |
| skip_packet = OPJ_TRUE; | |
| } | |
| /* If the packet resolution number is greater than the minimum */ | |
| /* number of resolution allowed, skip the packet */ | |
| else if (l_current_pi->resno >= | |
| p_tile->comps[l_current_pi->compno].minimum_num_resolutions) { | |
| skip_packet = OPJ_TRUE; | |
| } else { | |
| /* If no precincts of any band intersects the area of interest, */ | |
| /* skip the packet */ | |
| OPJ_UINT32 bandno; | |
| opj_tcd_tilecomp_t *tilec = &p_tile->comps[l_current_pi->compno]; | |
| opj_tcd_resolution_t *res = &tilec->resolutions[l_current_pi->resno]; | |
| skip_packet = OPJ_TRUE; | |
| for (bandno = 0; bandno < res->numbands; ++bandno) { | |
| opj_tcd_band_t* band = &res->bands[bandno]; | |
| opj_tcd_precinct_t* prec = &band->precincts[l_current_pi->precno]; | |
| if (opj_tcd_is_subband_area_of_interest(tcd, | |
| l_current_pi->compno, | |
| l_current_pi->resno, | |
| band->bandno, | |
| (OPJ_UINT32)prec->x0, | |
| (OPJ_UINT32)prec->y0, | |
| (OPJ_UINT32)prec->x1, | |
| (OPJ_UINT32)prec->y1)) { | |
| skip_packet = OPJ_FALSE; | |
| break; | |
| } | |
| } | |
| /* | |
| printf("packet cmptno=%02d rlvlno=%02d prcno=%03d lyrno=%02d -> %s\n", | |
| l_current_pi->compno, l_current_pi->resno, | |
| l_current_pi->precno, l_current_pi->layno, skip_packet ? "skipped" : "kept"); | |
| */ | |
| } | |
| if (!skip_packet) { | |
| l_nb_bytes_read = 0; | |
| first_pass_failed[l_current_pi->compno] = OPJ_FALSE; | |
| 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)) { | |
| opj_pi_destroy(l_pi, l_nb_pocs); | |
| opj_free(first_pass_failed); | |
| return OPJ_FALSE; | |
| } | |
| l_img_comp = &(l_image->comps[l_current_pi->compno]); | |
| l_img_comp->resno_decoded = opj_uint_max(l_current_pi->resno, | |
| l_img_comp->resno_decoded); | |
| } else { | |
| l_nb_bytes_read = 0; | |
| 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)) { | |
| opj_pi_destroy(l_pi, l_nb_pocs); | |
| opj_free(first_pass_failed); | |
| return OPJ_FALSE; | |
| } | |
| } | |
| if (first_pass_failed[l_current_pi->compno]) { | |
| l_img_comp = &(l_image->comps[l_current_pi->compno]); | |
| if (l_img_comp->resno_decoded == 0) { | |
| l_img_comp->resno_decoded = | |
| p_tile->comps[l_current_pi->compno].minimum_num_resolutions - 1; | |
| } | |
| } | |
| l_current_data += l_nb_bytes_read; | |
| p_max_len -= l_nb_bytes_read; | |
| /* INDEX >> */ | |
| #ifdef TODO_MSD | |
| if (p_cstr_info) { | |
| opj_tile_info_v2_t *info_TL = &p_cstr_info->tile[p_tile_no]; | |
| opj_packet_info_t *info_PK = &info_TL->packet[p_cstr_info->packno]; | |
| tp_start_packno = 0; | |
| if (!p_cstr_info->packno) { | |
| info_PK->start_pos = info_TL->end_header + 1; | |
| } 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 */ | |
| info_TL->tp[curtp].tp_numpacks = p_cstr_info->packno - | |
| tp_start_packno; /* Number of packets in previous tile-part */ | |
| tp_start_packno = p_cstr_info->packno; | |
| curtp++; | |
| info_PK->start_pos = p_cstr_info->tile[p_tile_no].tp[curtp].tp_end_header + 1; | |
| } else { | |
| 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; | |
| } | |
| info_PK->end_pos = info_PK->start_pos + l_nb_bytes_read - 1; | |
| info_PK->end_ph_pos += info_PK->start_pos - | |
| 1; /* End of packet header which now only represents the distance */ | |
| ++p_cstr_info->packno; | |
| } | |
| #endif | |
| /* << INDEX */ | |
| } | |
| ++l_current_pi; | |
| opj_free(first_pass_failed); | |
| } | |
| /* INDEX >> */ | |
| #ifdef TODO_MSD | |
| if | |
| (p_cstr_info) { | |
| 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 */ | |
| } | |
| #endif | |
| /* << INDEX */ | |
| /* don't forget to release pi */ | |
| opj_pi_destroy(l_pi, l_nb_pocs); | |
| *p_data_read = (OPJ_UINT32)(l_current_data - p_src); | |
| return OPJ_TRUE; | |
| } | |
| /* ----------------------------------------------------------------------- */ | |
| /** | |
| * Creates a Tier 2 handle | |
| * | |
| * @param p_image Source or destination image | |
| * @param p_cp Image coding parameters. | |
| * @return a new T2 handle if successful, NULL otherwise. | |
| */ | |
| opj_t2_t* opj_t2_create(opj_image_t *p_image, opj_cp_t *p_cp) | |
| { | |
| /* create the t2 structure */ | |
| opj_t2_t *l_t2 = (opj_t2_t*)opj_calloc(1, sizeof(opj_t2_t)); | |
| if (!l_t2) { | |
| return NULL; | |
| } | |
| l_t2->image = p_image; | |
| l_t2->cp = p_cp; | |
| return l_t2; | |
| } | |
| void opj_t2_destroy(opj_t2_t *t2) | |
| { | |
| if (t2) { | |
| opj_free(t2); | |
| } | |
| } | |
| static OPJ_BOOL 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, | |
| opj_event_mgr_t *p_manager) | |
| { | |
| OPJ_BOOL l_read_data; | |
| OPJ_UINT32 l_nb_bytes_read = 0; | |
| OPJ_UINT32 l_nb_total_bytes_read = 0; | |
| *p_data_read = 0; | |
| 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)) { | |
| return OPJ_FALSE; | |
| } | |
| p_src += l_nb_bytes_read; | |
| l_nb_total_bytes_read += l_nb_bytes_read; | |
| p_max_length -= l_nb_bytes_read; | |
| /* we should read data for the packet */ | |
| if (l_read_data) { | |
| l_nb_bytes_read = 0; | |
| 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)) { | |
| return OPJ_FALSE; | |
| } | |
| l_nb_total_bytes_read += l_nb_bytes_read; | |
| } | |
| *p_data_read = l_nb_total_bytes_read; | |
| return OPJ_TRUE; | |
| } | |
| static OPJ_BOOL 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, | |
| J2K_T2_MODE p_t2_mode, | |
| opj_event_mgr_t *p_manager) | |
| { | |
| OPJ_UINT32 bandno, cblkno; | |
| OPJ_BYTE* c = dest; | |
| OPJ_UINT32 l_nb_bytes; | |
| OPJ_UINT32 compno = pi->compno; /* component value */ | |
| OPJ_UINT32 resno = pi->resno; /* resolution level value */ | |
| OPJ_UINT32 precno = pi->precno; /* precinct value */ | |
| OPJ_UINT32 layno = pi->layno; /* quality layer value */ | |
| OPJ_UINT32 l_nb_blocks; | |
| opj_tcd_band_t *band = 00; | |
| opj_tcd_cblk_enc_t* cblk = 00; | |
| opj_tcd_pass_t *pass = 00; | |
| opj_tcd_tilecomp_t *tilec = &tile->comps[compno]; | |
| opj_tcd_resolution_t *res = &tilec->resolutions[resno]; | |
| opj_bio_t *bio = 00; /* BIO component */ | |
| #ifdef ENABLE_EMPTY_PACKET_OPTIMIZATION | |
| OPJ_BOOL packet_empty = OPJ_TRUE; | |
| #else | |
| OPJ_BOOL packet_empty = OPJ_FALSE; | |
| #endif | |
| #ifdef DEBUG_VERBOSE | |
| if (p_t2_mode == FINAL_PASS) { | |
| fprintf(stderr, | |
| "encode packet compono=%d, resno=%d, precno=%d, layno=%d\n", | |
| compno, resno, precno, layno); | |
| } | |
| #endif | |
| /* <SOP 0xff91> */ | |
| if (tcp->csty & J2K_CP_CSTY_SOP) { | |
| if (length < 6) { | |
| if (p_t2_mode == FINAL_PASS) { | |
| opj_event_msg(p_manager, EVT_ERROR, | |
| "opj_t2_encode_packet(): only %u bytes remaining in " | |
| "output buffer. %u needed.\n", | |
| length, 6); | |
| } | |
| return OPJ_FALSE; | |
| } | |
| c[0] = 255; | |
| c[1] = 145; | |
| c[2] = 0; | |
| c[3] = 4; | |
| #if 0 | |
| c[4] = (tile->packno % 65536) / 256; | |
| c[5] = (tile->packno % 65536) % 256; | |
| #else | |
| c[4] = (tile->packno >> 8) & 0xff; /* packno is uint32_t */ | |
| c[5] = tile->packno & 0xff; | |
| #endif | |
| c += 6; | |
| length -= 6; | |
| } | |
| /* </SOP> */ | |
| if (!layno) { | |
| band = res->bands; | |
| for (bandno = 0; bandno < res->numbands; ++bandno, ++band) { | |
| opj_tcd_precinct_t *prc; | |
| /* Skip empty bands */ | |
| if (opj_tcd_is_band_empty(band)) { | |
| continue; | |
| } | |
| /* Avoid out of bounds access of https://github.com/uclouvain/openjpeg/issues/1294 */ | |
| /* but likely not a proper fix. */ | |
| if (precno >= res->pw * res->ph) { | |
| opj_event_msg(p_manager, EVT_ERROR, | |
| "opj_t2_encode_packet(): accessing precno=%u >= %u\n", | |
| precno, res->pw * res->ph); | |
| return OPJ_FALSE; | |
| } | |
| prc = &band->precincts[precno]; | |
| opj_tgt_reset(prc->incltree); | |
| opj_tgt_reset(prc->imsbtree); | |
| l_nb_blocks = prc->cw * prc->ch; | |
| for (cblkno = 0; cblkno < l_nb_blocks; ++cblkno) { | |
| cblk = &prc->cblks.enc[cblkno]; | |
| cblk->numpasses = 0; | |
| opj_tgt_setvalue(prc->imsbtree, cblkno, band->numbps - (OPJ_INT32)cblk->numbps); | |
| } | |
| } | |
| } | |
| bio = opj_bio_create(); | |
| if (!bio) { | |
| /* FIXME event manager error callback */ | |
| return OPJ_FALSE; | |
| } | |
| opj_bio_init_enc(bio, c, length); | |
| #ifdef ENABLE_EMPTY_PACKET_OPTIMIZATION | |
| /* WARNING: this code branch is disabled, since it has been reported that */ | |
| /* such packets cause decoding issues with cinema J2K hardware */ | |
| /* decoders: https://groups.google.com/forum/#!topic/openjpeg/M7M_fLX_Bco */ | |
| /* Check if the packet is empty */ | |
| /* Note: we could also skip that step and always write a packet header */ | |
| band = res->bands; | |
| for (bandno = 0; bandno < res->numbands; ++bandno, ++band) { | |
| opj_tcd_precinct_t *prc; | |
| /* Skip empty bands */ | |
| if (opj_tcd_is_band_empty(band)) { | |
| continue; | |
| } | |
| prc = &band->precincts[precno]; | |
| l_nb_blocks = prc->cw * prc->ch; | |
| cblk = prc->cblks.enc; | |
| for (cblkno = 0; cblkno < l_nb_blocks; cblkno++, ++cblk) { | |
| opj_tcd_layer_t *layer = &cblk->layers[layno]; | |
| /* if cblk not included, go to the next cblk */ | |
| if (!layer->numpasses) { | |
| continue; | |
| } | |
| packet_empty = OPJ_FALSE; | |
| break; | |
| } | |
| if (!packet_empty) { | |
| break; | |
| } | |
| } | |
| #endif | |
| opj_bio_putbit(bio, packet_empty ? 0 : 1); /* Empty header bit */ | |
| /* Writing Packet header */ | |
| band = res->bands; | |
| for (bandno = 0; !packet_empty && | |
| bandno < res->numbands; ++bandno, ++band) { | |
| opj_tcd_precinct_t *prc; | |
| /* Skip empty bands */ | |
| if (opj_tcd_is_band_empty(band)) { | |
| continue; | |
| } | |
| /* Avoid out of bounds access of https://github.com/uclouvain/openjpeg/issues/1297 */ | |
| /* but likely not a proper fix. */ | |
| if (precno >= res->pw * res->ph) { | |
| opj_event_msg(p_manager, EVT_ERROR, | |
| "opj_t2_encode_packet(): accessing precno=%u >= %u\n", | |
| precno, res->pw * res->ph); | |
| return OPJ_FALSE; | |
| } | |
| prc = &band->precincts[precno]; | |
| l_nb_blocks = prc->cw * prc->ch; | |
| cblk = prc->cblks.enc; | |
| for (cblkno = 0; cblkno < l_nb_blocks; ++cblkno) { | |
| opj_tcd_layer_t *layer = &cblk->layers[layno]; | |
| if (!cblk->numpasses && layer->numpasses) { | |
| opj_tgt_setvalue(prc->incltree, cblkno, (OPJ_INT32)layno); | |
| } | |
| ++cblk; | |
| } | |
| cblk = prc->cblks.enc; | |
| for (cblkno = 0; cblkno < l_nb_blocks; cblkno++) { | |
| opj_tcd_layer_t *layer = &cblk->layers[layno]; | |
| OPJ_UINT32 increment = 0; | |
| OPJ_UINT32 nump = 0; | |
| OPJ_UINT32 len = 0, passno; | |
| OPJ_UINT32 l_nb_passes; | |
| /* cblk inclusion bits */ | |
| if (!cblk->numpasses) { | |
| opj_tgt_encode(bio, prc->incltree, cblkno, (OPJ_INT32)(layno + 1)); | |
| } else { | |
| opj_bio_putbit(bio, layer->numpasses != 0); | |
| } | |
| /* if cblk not included, go to the next cblk */ | |
| if (!layer->numpasses) { | |
| ++cblk; | |
| continue; | |
| } | |
| /* if first instance of cblk --> zero bit-planes information */ | |
| if (!cblk->numpasses) { | |
| cblk->numlenbits = 3; | |
| opj_tgt_encode(bio, prc->imsbtree, cblkno, 999); | |
| } | |
| /* number of coding passes included */ | |
| opj_t2_putnumpasses(bio, layer->numpasses); | |
| l_nb_passes = cblk->numpasses + layer->numpasses; | |
| pass = cblk->passes + cblk->numpasses; | |
| /* computation of the increase of the length indicator and insertion in the header */ | |
| for (passno = cblk->numpasses; passno < l_nb_passes; ++passno) { | |
| ++nump; | |
| len += pass->len; | |
| if (pass->term || passno == (cblk->numpasses + layer->numpasses) - 1) { | |
| increment = (OPJ_UINT32)opj_int_max((OPJ_INT32)increment, | |
| opj_int_floorlog2((OPJ_INT32)len) + 1 | |
| - ((OPJ_INT32)cblk->numlenbits + opj_int_floorlog2((OPJ_INT32)nump))); | |
| len = 0; | |
| nump = 0; | |
| } | |
| ++pass; | |
| } | |
| opj_t2_putcommacode(bio, (OPJ_INT32)increment); | |
| /* computation of the new Length indicator */ | |
| cblk->numlenbits += increment; | |
| pass = cblk->passes + cblk->numpasses; | |
| /* insertion of the codeword segment length */ | |
| for (passno = cblk->numpasses; passno < l_nb_passes; ++passno) { | |
| nump++; | |
| len += pass->len; | |
| if (pass->term || passno == (cblk->numpasses + layer->numpasses) - 1) { | |
| opj_bio_write(bio, (OPJ_UINT32)len, | |
| cblk->numlenbits + (OPJ_UINT32)opj_int_floorlog2((OPJ_INT32)nump)); | |
| len = 0; | |
| nump = 0; | |
| } | |
| ++pass; | |
| } | |
| ++cblk; | |
| } | |
| } | |
| if (!opj_bio_flush(bio)) { | |
| opj_bio_destroy(bio); | |
| return OPJ_FALSE; /* modified to eliminate longjmp !! */ | |
| } | |
| l_nb_bytes = (OPJ_UINT32)opj_bio_numbytes(bio); | |
| c += l_nb_bytes; | |
| length -= l_nb_bytes; | |
| opj_bio_destroy(bio); | |
| /* <EPH 0xff92> */ | |
| if (tcp->csty & J2K_CP_CSTY_EPH) { | |
| if (length < 2) { | |
| if (p_t2_mode == FINAL_PASS) { | |
| opj_event_msg(p_manager, EVT_ERROR, | |
| "opj_t2_encode_packet(): only %u bytes remaining in " | |
| "output buffer. %u needed.\n", | |
| length, 2); | |
| } | |
| return OPJ_FALSE; | |
| } | |
| c[0] = 255; | |
| c[1] = 146; | |
| c += 2; | |
| length -= 2; | |
| } | |
| /* </EPH> */ | |
| /* << INDEX */ | |
| /* End of packet header position. Currently only represents the distance to start of packet | |
| Will be updated later by incrementing with packet start value*/ | |
| if (cstr_info && cstr_info->index_write) { | |
| opj_packet_info_t *info_PK = &cstr_info->tile[tileno].packet[cstr_info->packno]; | |
| info_PK->end_ph_pos = (OPJ_INT32)(c - dest); | |
| } | |
| /* INDEX >> */ | |
| /* Writing the packet body */ | |
| band = res->bands; | |
| for (bandno = 0; !packet_empty && bandno < res->numbands; bandno++, ++band) { | |
| opj_tcd_precinct_t *prc; | |
| /* Skip empty bands */ | |
| if (opj_tcd_is_band_empty(band)) { | |
| continue; | |
| } | |
| prc = &band->precincts[precno]; | |
| l_nb_blocks = prc->cw * prc->ch; | |
| cblk = prc->cblks.enc; | |
| for (cblkno = 0; cblkno < l_nb_blocks; ++cblkno) { | |
| opj_tcd_layer_t *layer = &cblk->layers[layno]; | |
| if (!layer->numpasses) { | |
| ++cblk; | |
| continue; | |
| } | |
| if (layer->len > length) { | |
| if (p_t2_mode == FINAL_PASS) { | |
| opj_event_msg(p_manager, EVT_ERROR, | |
| "opj_t2_encode_packet(): only %u bytes remaining in " | |
| "output buffer. %u needed.\n", | |
| length, layer->len); | |
| } | |
| return OPJ_FALSE; | |
| } | |
| if (p_t2_mode == FINAL_PASS) { | |
| memcpy(c, layer->data, layer->len); | |
| } | |
| cblk->numpasses += layer->numpasses; | |
| c += layer->len; | |
| length -= layer->len; | |
| /* << INDEX */ | |
| if (cstr_info && cstr_info->index_write) { | |
| opj_packet_info_t *info_PK = &cstr_info->tile[tileno].packet[cstr_info->packno]; | |
| info_PK->disto += layer->disto; | |
| if (cstr_info->D_max < info_PK->disto) { | |
| cstr_info->D_max = info_PK->disto; | |
| } | |
| } | |
| ++cblk; | |
| /* INDEX >> */ | |
| } | |
| } | |
| assert(c >= dest); | |
| * p_data_written += (OPJ_UINT32)(c - dest); | |
| return OPJ_TRUE; | |
| } | |
| static OPJ_BOOL 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, | |
| opj_event_mgr_t *p_manager) | |
| { | |
| OPJ_BOOL l_read_data; | |
| OPJ_UINT32 l_nb_bytes_read = 0; | |
| OPJ_UINT32 l_nb_total_bytes_read = 0; | |
| *p_data_read = 0; | |
| 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)) { | |
| return OPJ_FALSE; | |
| } | |
| p_src += l_nb_bytes_read; | |
| l_nb_total_bytes_read += l_nb_bytes_read; | |
| p_max_length -= l_nb_bytes_read; | |
| /* we should read data for the packet */ | |
| if (l_read_data) { | |
| l_nb_bytes_read = 0; | |
| if (! opj_t2_skip_packet_data(p_t2, p_tile, p_pi, &l_nb_bytes_read, | |
| p_max_length, p_pack_info, p_manager)) { | |
| return OPJ_FALSE; | |
| } | |
| l_nb_total_bytes_read += l_nb_bytes_read; | |
| } | |
| *p_data_read = l_nb_total_bytes_read; | |
| return OPJ_TRUE; | |
| } | |
| static OPJ_BOOL 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, | |
| opj_event_mgr_t *p_manager) | |
| { | |
| /* loop */ | |
| OPJ_UINT32 bandno, cblkno; | |
| OPJ_UINT32 l_nb_code_blocks; | |
| OPJ_UINT32 l_remaining_length; | |
| OPJ_UINT32 l_header_length; | |
| OPJ_UINT32 * l_modified_length_ptr = 00; | |
| OPJ_BYTE *l_current_data = p_src_data; | |
| opj_cp_t *l_cp = p_t2->cp; | |
| opj_bio_t *l_bio = 00; /* BIO component */ | |
| opj_tcd_band_t *l_band = 00; | |
| opj_tcd_cblk_dec_t* l_cblk = 00; | |
| opj_tcd_resolution_t* l_res = | |
| &p_tile->comps[p_pi->compno].resolutions[p_pi->resno]; | |
| OPJ_BYTE *l_header_data = 00; | |
| OPJ_BYTE **l_header_data_start = 00; | |
| OPJ_UINT32 l_present; | |
| if (p_pi->layno == 0) { | |
| l_band = l_res->bands; | |
| /* reset tagtrees */ | |
| for (bandno = 0; bandno < l_res->numbands; ++bandno) { | |
| if (!opj_tcd_is_band_empty(l_band)) { | |
| opj_tcd_precinct_t *l_prc = &l_band->precincts[p_pi->precno]; | |
| if (!(p_pi->precno < (l_band->precincts_data_size / sizeof( | |
| opj_tcd_precinct_t)))) { | |
| opj_event_msg(p_manager, EVT_ERROR, "Invalid precinct\n"); | |
| return OPJ_FALSE; | |
| } | |
| opj_tgt_reset(l_prc->incltree); | |
| opj_tgt_reset(l_prc->imsbtree); | |
| l_cblk = l_prc->cblks.dec; | |
| l_nb_code_blocks = l_prc->cw * l_prc->ch; | |
| for (cblkno = 0; cblkno < l_nb_code_blocks; ++cblkno) { | |
| l_cblk->numsegs = 0; | |
| l_cblk->real_num_segs = 0; | |
| ++l_cblk; | |
| } | |
| } | |
| ++l_band; | |
| } | |
| } | |
| /* SOP markers */ | |
| if (p_tcp->csty & J2K_CP_CSTY_SOP) { | |
| /* SOP markers are allowed (i.e. optional), just warn */ | |
| if (p_max_length < 6) { | |
| opj_event_msg(p_manager, EVT_WARNING, | |
| "Not enough space for expected SOP marker\n"); | |
| } else if ((*l_current_data) != 0xff || (*(l_current_data + 1) != 0x91)) { | |
| opj_event_msg(p_manager, EVT_WARNING, "Expected SOP marker\n"); | |
| } else { | |
| l_current_data += 6; | |
| } | |
| /** TODO : check the Nsop value */ | |
| } | |
| /* | |
| When the marker PPT/PPM is used the packet header are store in PPT/PPM marker | |
| This part deal with this characteristic | |
| step 1: Read packet header in the saved structure | |
| step 2: Return to codestream for decoding | |
| */ | |
| l_bio = opj_bio_create(); | |
| if (! l_bio) { | |
| return OPJ_FALSE; | |
| } | |
| if (l_cp->ppm == 1) { /* PPM */ | |
| l_header_data_start = &l_cp->ppm_data; | |
| l_header_data = *l_header_data_start; | |
| l_modified_length_ptr = &(l_cp->ppm_len); | |
| } else if (p_tcp->ppt == 1) { /* PPT */ | |
| l_header_data_start = &(p_tcp->ppt_data); | |
| l_header_data = *l_header_data_start; | |
| l_modified_length_ptr = &(p_tcp->ppt_len); | |
| } else { /* Normal Case */ | |
| l_header_data_start = &(l_current_data); | |
| l_header_data = *l_header_data_start; | |
| l_remaining_length = (OPJ_UINT32)(p_src_data + p_max_length - l_header_data); | |
| l_modified_length_ptr = &(l_remaining_length); | |
| } | |
| opj_bio_init_dec(l_bio, l_header_data, *l_modified_length_ptr); | |
| l_present = opj_bio_read(l_bio, 1); | |
| JAS_FPRINTF(stderr, "present=%d \n", l_present); | |
| if (!l_present) { | |
| /* TODO MSD: no test to control the output of this function*/ | |
| opj_bio_inalign(l_bio); | |
| l_header_data += opj_bio_numbytes(l_bio); | |
| opj_bio_destroy(l_bio); | |
| /* EPH markers */ | |
| if (p_tcp->csty & J2K_CP_CSTY_EPH) { | |
| /* EPH markers are required */ | |
| if ((*l_modified_length_ptr - (OPJ_UINT32)(l_header_data - | |
| *l_header_data_start)) < 2U) { | |
| opj_event_msg(p_manager, EVT_ERROR, | |
| "Not enough space for required EPH marker\n"); | |
| return OPJ_FALSE; | |
| } else if ((*l_header_data) != 0xff || (*(l_header_data + 1) != 0x92)) { | |
| opj_event_msg(p_manager, EVT_ERROR, "Expected EPH marker\n"); | |
| return OPJ_FALSE; | |
| } else { | |
| l_header_data += 2; | |
| } | |
| } | |
| l_header_length = (OPJ_UINT32)(l_header_data - *l_header_data_start); | |
| *l_modified_length_ptr -= l_header_length; | |
| *l_header_data_start += l_header_length; | |
| /* << INDEX */ | |
| /* End of packet header position. Currently only represents the distance to start of packet | |
| Will be updated later by incrementing with packet start value */ | |
| if (p_pack_info) { | |
| p_pack_info->end_ph_pos = (OPJ_INT32)(l_current_data - p_src_data); | |
| } | |
| /* INDEX >> */ | |
| * p_is_data_present = OPJ_FALSE; | |
| *p_data_read = (OPJ_UINT32)(l_current_data - p_src_data); | |
| return OPJ_TRUE; | |
| } | |
| l_band = l_res->bands; | |
| for (bandno = 0; bandno < l_res->numbands; ++bandno, ++l_band) { | |
| opj_tcd_precinct_t *l_prc = &(l_band->precincts[p_pi->precno]); | |
| if (opj_tcd_is_band_empty(l_band)) { | |
| continue; | |
| } | |
| l_nb_code_blocks = l_prc->cw * l_prc->ch; | |
| l_cblk = l_prc->cblks.dec; | |
| for (cblkno = 0; cblkno < l_nb_code_blocks; cblkno++) { | |
| OPJ_UINT32 l_included, l_increment, l_segno; | |
| OPJ_INT32 n; | |
| /* if cblk not yet included before --> inclusion tagtree */ | |
| if (!l_cblk->numsegs) { | |
| l_included = opj_tgt_decode(l_bio, l_prc->incltree, cblkno, | |
| (OPJ_INT32)(p_pi->layno + 1)); | |
| /* else one bit */ | |
| } else { | |
| l_included = opj_bio_read(l_bio, 1); | |
| } | |
| /* if cblk not included */ | |
| if (!l_included) { | |
| l_cblk->numnewpasses = 0; | |
| ++l_cblk; | |
| JAS_FPRINTF(stderr, "included=%d \n", l_included); | |
| continue; | |
| } | |
| /* if cblk not yet included --> zero-bitplane tagtree */ | |
| if (!l_cblk->numsegs) { | |
| OPJ_UINT32 i = 0; | |
| while (!opj_tgt_decode(l_bio, l_prc->imsbtree, cblkno, (OPJ_INT32)i)) { | |
| ++i; | |
| } | |
| l_cblk->Mb = (OPJ_UINT32)l_band->numbps; | |
| if ((OPJ_UINT32)l_band->numbps + 1 < i) { | |
| /* Not totally sure what we should do in that situation, | |
| * but that avoids the integer overflow of | |
| * https://github.com/uclouvain/openjpeg/pull/1488 | |
| * while keeping the regression test suite happy. | |
| */ | |
| l_cblk->numbps = (OPJ_UINT32)(l_band->numbps + 1 - (int)i); | |
| } else { | |
| l_cblk->numbps = (OPJ_UINT32)l_band->numbps + 1 - i; | |
| } | |
| l_cblk->numlenbits = 3; | |
| } | |
| /* number of coding passes */ | |
| l_cblk->numnewpasses = opj_t2_getnumpasses(l_bio); | |
| l_increment = opj_t2_getcommacode(l_bio); | |
| /* length indicator increment */ | |
| l_cblk->numlenbits += l_increment; | |
| l_segno = 0; | |
| if (!l_cblk->numsegs) { | |
| if (! opj_t2_init_seg(l_cblk, l_segno, p_tcp->tccps[p_pi->compno].cblksty, 1)) { | |
| opj_bio_destroy(l_bio); | |
| return OPJ_FALSE; | |
| } | |
| } else { | |
| l_segno = l_cblk->numsegs - 1; | |
| if (l_cblk->segs[l_segno].numpasses == l_cblk->segs[l_segno].maxpasses) { | |
| ++l_segno; | |
| if (! opj_t2_init_seg(l_cblk, l_segno, p_tcp->tccps[p_pi->compno].cblksty, 0)) { | |
| opj_bio_destroy(l_bio); | |
| return OPJ_FALSE; | |
| } | |
| } | |
| } | |
| n = (OPJ_INT32)l_cblk->numnewpasses; | |
| if ((p_tcp->tccps[p_pi->compno].cblksty & J2K_CCP_CBLKSTY_HT) != 0) | |
| do { | |
| OPJ_UINT32 bit_number; | |
| l_cblk->segs[l_segno].numnewpasses = l_segno == 0 ? 1 : (OPJ_UINT32)n; | |
| bit_number = l_cblk->numlenbits + opj_uint_floorlog2( | |
| l_cblk->segs[l_segno].numnewpasses); | |
| if (bit_number > 32) { | |
| opj_event_msg(p_manager, EVT_ERROR, | |
| "Invalid bit number %d in opj_t2_read_packet_header()\n", | |
| bit_number); | |
| opj_bio_destroy(l_bio); | |
| return OPJ_FALSE; | |
| } | |
| l_cblk->segs[l_segno].newlen = opj_bio_read(l_bio, bit_number); | |
| 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); | |
| n -= (OPJ_INT32)l_cblk->segs[l_segno].numnewpasses; | |
| if (n > 0) { | |
| ++l_segno; | |
| if (! opj_t2_init_seg(l_cblk, l_segno, p_tcp->tccps[p_pi->compno].cblksty, 0)) { | |
| opj_bio_destroy(l_bio); | |
| return OPJ_FALSE; | |
| } | |
| } | |
| } while (n > 0); | |
| else | |
| do { | |
| OPJ_UINT32 bit_number; | |
| 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); | |
| bit_number = l_cblk->numlenbits + opj_uint_floorlog2( | |
| l_cblk->segs[l_segno].numnewpasses); | |
| if (bit_number > 32) { | |
| opj_event_msg(p_manager, EVT_ERROR, | |
| "Invalid bit number %d in opj_t2_read_packet_header()\n", | |
| bit_number); | |
| opj_bio_destroy(l_bio); | |
| return OPJ_FALSE; | |
| } | |
| l_cblk->segs[l_segno].newlen = opj_bio_read(l_bio, bit_number); | |
| 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); | |
| n -= (OPJ_INT32)l_cblk->segs[l_segno].numnewpasses; | |
| if (n > 0) { | |
| ++l_segno; | |
| if (! opj_t2_init_seg(l_cblk, l_segno, p_tcp->tccps[p_pi->compno].cblksty, 0)) { | |
| opj_bio_destroy(l_bio); | |
| return OPJ_FALSE; | |
| } | |
| } | |
| } while (n > 0); | |
| ++l_cblk; | |
| } | |
| } | |
| if (!opj_bio_inalign(l_bio)) { | |
| opj_bio_destroy(l_bio); | |
| return OPJ_FALSE; | |
| } | |
| l_header_data += opj_bio_numbytes(l_bio); | |
| opj_bio_destroy(l_bio); | |
| /* EPH markers */ | |
| if (p_tcp->csty & J2K_CP_CSTY_EPH) { | |
| /* EPH markers are required */ | |
| if ((*l_modified_length_ptr - (OPJ_UINT32)(l_header_data - | |
| *l_header_data_start)) < 2U) { | |
| opj_event_msg(p_manager, EVT_ERROR, | |
| "Not enough space for required EPH marker\n"); | |
| return OPJ_FALSE; | |
| } else if ((*l_header_data) != 0xff || (*(l_header_data + 1) != 0x92)) { | |
| opj_event_msg(p_manager, EVT_ERROR, "Expected EPH marker\n"); | |
| return OPJ_FALSE; | |
| } else { | |
| l_header_data += 2; | |
| } | |
| } | |
| l_header_length = (OPJ_UINT32)(l_header_data - *l_header_data_start); | |
| JAS_FPRINTF(stderr, "hdrlen=%d \n", l_header_length); | |
| if (!l_header_length) { | |
| return OPJ_FALSE; | |
| } | |
| JAS_FPRINTF(stderr, "packet body\n"); | |
| *l_modified_length_ptr -= l_header_length; | |
| *l_header_data_start += l_header_length; | |
| /* << INDEX */ | |
| /* End of packet header position. Currently only represents the distance to start of packet | |
| Will be updated later by incrementing with packet start value */ | |
| if (p_pack_info) { | |
| p_pack_info->end_ph_pos = (OPJ_INT32)(l_current_data - p_src_data); | |
| } | |
| /* INDEX >> */ | |
| *p_is_data_present = OPJ_TRUE; | |
| *p_data_read = (OPJ_UINT32)(l_current_data - p_src_data); | |
| return OPJ_TRUE; | |
| } | |
| static OPJ_BOOL 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, | |
| opj_event_mgr_t* p_manager) | |
| { | |
| OPJ_UINT32 bandno, cblkno; | |
| OPJ_UINT32 l_nb_code_blocks; | |
| OPJ_BYTE *l_current_data = p_src_data; | |
| opj_tcd_band_t *l_band = 00; | |
| opj_tcd_cblk_dec_t* l_cblk = 00; | |
| opj_tcd_resolution_t* l_res = | |
| &p_tile->comps[p_pi->compno].resolutions[p_pi->resno]; | |
| OPJ_BOOL partial_buffer = OPJ_FALSE; | |
| OPJ_ARG_NOT_USED(p_t2); | |
| OPJ_ARG_NOT_USED(pack_info); | |
| l_band = l_res->bands; | |
| for (bandno = 0; bandno < l_res->numbands; ++bandno) { | |
| opj_tcd_precinct_t *l_prc = &l_band->precincts[p_pi->precno]; | |
| if ((l_band->x1 - l_band->x0 == 0) || (l_band->y1 - l_band->y0 == 0)) { | |
| ++l_band; | |
| continue; | |
| } | |
| l_nb_code_blocks = l_prc->cw * l_prc->ch; | |
| l_cblk = l_prc->cblks.dec; | |
| for (cblkno = 0; cblkno < l_nb_code_blocks; ++cblkno, ++l_cblk) { | |
| opj_tcd_seg_t *l_seg = 00; | |
| if (!l_cblk->numnewpasses) { | |
| /* nothing to do */ | |
| continue; | |
| } | |
| if (partial_buffer || l_cblk->corrupted) { | |
| /* if a previous segment in this packet couldn't be decoded, | |
| * or if this code block was corrupted in a previous layer, | |
| * then mark it as corrupted. | |
| */ | |
| l_cblk->numchunks = 0; | |
| l_cblk->corrupted = OPJ_TRUE; | |
| continue; | |
| } | |
| if (!l_cblk->numsegs) { | |
| l_seg = l_cblk->segs; | |
| ++l_cblk->numsegs; | |
| } else { | |
| l_seg = &l_cblk->segs[l_cblk->numsegs - 1]; | |
| if (l_seg->numpasses == l_seg->maxpasses) { | |
| ++l_seg; | |
| ++l_cblk->numsegs; | |
| } | |
| } | |
| do { | |
| /* Check possible overflow (on l_current_data only, assumes input args already checked) then size */ | |
| 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) || | |
| (partial_buffer)) { | |
| if (p_t2->cp->strict) { | |
| 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", | |
| l_seg->newlen, p_max_length, cblkno, p_pi->precno, bandno, p_pi->resno, | |
| p_pi->compno); | |
| return OPJ_FALSE; | |
| } else { | |
| opj_event_msg(p_manager, EVT_WARNING, | |
| "read: segment too long (%d) with max (%d) for codeblock %d (p=%d, b=%d, r=%d, c=%d)\n", | |
| l_seg->newlen, p_max_length, cblkno, p_pi->precno, bandno, p_pi->resno, | |
| p_pi->compno); | |
| /* skip this codeblock (and following ones in this | |
| * packet) since it is a partial read | |
| */ | |
| partial_buffer = OPJ_TRUE; | |
| l_cblk->corrupted = OPJ_TRUE; | |
| l_cblk->numchunks = 0; | |
| break; | |
| } | |
| } | |
| #ifdef USE_JPWL | |
| /* we need here a j2k handle to verify if making a check to | |
| the validity of cblocks parameters is selected from user (-W) */ | |
| /* let's check that we are not exceeding */ | |
| if ((l_cblk->len + l_seg->newlen) > 8192) { | |
| opj_event_msg(p_manager, EVT_WARNING, | |
| "JPWL: segment too long (%d) for codeblock %d (p=%d, b=%d, r=%d, c=%d)\n", | |
| l_seg->newlen, cblkno, p_pi->precno, bandno, p_pi->resno, p_pi->compno); | |
| if (!JPWL_ASSUME) { | |
| opj_event_msg(p_manager, EVT_ERROR, "JPWL: giving up\n"); | |
| return OPJ_FALSE; | |
| } | |
| l_seg->newlen = 8192 - l_cblk->len; | |
| opj_event_msg(p_manager, EVT_WARNING, " - truncating segment to %d\n", | |
| l_seg->newlen); | |
| break; | |
| }; | |
| #endif /* USE_JPWL */ | |
| if (l_cblk->numchunks == l_cblk->numchunksalloc) { | |
| OPJ_UINT32 l_numchunksalloc = l_cblk->numchunksalloc * 2 + 1; | |
| opj_tcd_seg_data_chunk_t* l_chunks = | |
| (opj_tcd_seg_data_chunk_t*)opj_realloc(l_cblk->chunks, | |
| l_numchunksalloc * sizeof(opj_tcd_seg_data_chunk_t)); | |
| if (l_chunks == NULL) { | |
| opj_event_msg(p_manager, EVT_ERROR, | |
| "cannot allocate opj_tcd_seg_data_chunk_t* array"); | |
| return OPJ_FALSE; | |
| } | |
| l_cblk->chunks = l_chunks; | |
| l_cblk->numchunksalloc = l_numchunksalloc; | |
| } | |
| l_cblk->chunks[l_cblk->numchunks].data = l_current_data; | |
| l_cblk->chunks[l_cblk->numchunks].len = l_seg->newlen; | |
| l_cblk->numchunks ++; | |
| l_current_data += l_seg->newlen; | |
| l_seg->len += l_seg->newlen; | |
| l_seg->numpasses += l_seg->numnewpasses; | |
| l_cblk->numnewpasses -= l_seg->numnewpasses; | |
| l_seg->real_num_passes = l_seg->numpasses; | |
| if (l_cblk->numnewpasses > 0) { | |
| ++l_seg; | |
| ++l_cblk->numsegs; | |
| } | |
| } while (l_cblk->numnewpasses > 0); | |
| l_cblk->real_num_segs = l_cblk->numsegs; | |
| } /* next code_block */ | |
| ++l_band; | |
| } | |
| // return the number of bytes read | |
| if (partial_buffer) { | |
| *(p_data_read) = p_max_length; | |
| } else { | |
| *(p_data_read) = (OPJ_UINT32)(l_current_data - p_src_data); | |
| } | |
| return OPJ_TRUE; | |
| } | |
| static OPJ_BOOL 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, | |
| opj_event_mgr_t *p_manager) | |
| { | |
| OPJ_UINT32 bandno, cblkno; | |
| OPJ_UINT32 l_nb_code_blocks; | |
| opj_tcd_band_t *l_band = 00; | |
| opj_tcd_cblk_dec_t* l_cblk = 00; | |
| opj_tcd_resolution_t* l_res = | |
| &p_tile->comps[p_pi->compno].resolutions[p_pi->resno]; | |
| OPJ_ARG_NOT_USED(p_t2); | |
| OPJ_ARG_NOT_USED(pack_info); | |
| *p_data_read = 0; | |
| l_band = l_res->bands; | |
| for (bandno = 0; bandno < l_res->numbands; ++bandno) { | |
| opj_tcd_precinct_t *l_prc = &l_band->precincts[p_pi->precno]; | |
| if ((l_band->x1 - l_band->x0 == 0) || (l_band->y1 - l_band->y0 == 0)) { | |
| ++l_band; | |
| continue; | |
| } | |
| l_nb_code_blocks = l_prc->cw * l_prc->ch; | |
| l_cblk = l_prc->cblks.dec; | |
| for (cblkno = 0; cblkno < l_nb_code_blocks; ++cblkno) { | |
| opj_tcd_seg_t *l_seg = 00; | |
| if (!l_cblk->numnewpasses) { | |
| /* nothing to do */ | |
| ++l_cblk; | |
| continue; | |
| } | |
| if (!l_cblk->numsegs) { | |
| l_seg = l_cblk->segs; | |
| ++l_cblk->numsegs; | |
| } else { | |
| l_seg = &l_cblk->segs[l_cblk->numsegs - 1]; | |
| if (l_seg->numpasses == l_seg->maxpasses) { | |
| ++l_seg; | |
| ++l_cblk->numsegs; | |
| } | |
| } | |
| do { | |
| /* Check possible overflow then size */ | |
| if (((*p_data_read + l_seg->newlen) < (*p_data_read)) || | |
| ((*p_data_read + l_seg->newlen) > p_max_length)) { | |
| if (p_t2->cp->strict) { | |
| 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", | |
| l_seg->newlen, p_max_length, cblkno, p_pi->precno, bandno, p_pi->resno, | |
| p_pi->compno); | |
| return OPJ_FALSE; | |
| } else { | |
| opj_event_msg(p_manager, EVT_WARNING, | |
| "skip: segment too long (%d) with max (%d) for codeblock %d (p=%d, b=%d, r=%d, c=%d)\n", | |
| l_seg->newlen, p_max_length, cblkno, p_pi->precno, bandno, p_pi->resno, | |
| p_pi->compno); | |
| *p_data_read = p_max_length; | |
| return OPJ_TRUE; | |
| } | |
| } | |
| #ifdef USE_JPWL | |
| /* we need here a j2k handle to verify if making a check to | |
| the validity of cblocks parameters is selected from user (-W) */ | |
| /* let's check that we are not exceeding */ | |
| if ((l_cblk->len + l_seg->newlen) > 8192) { | |
| opj_event_msg(p_manager, EVT_WARNING, | |
| "JPWL: segment too long (%d) for codeblock %d (p=%d, b=%d, r=%d, c=%d)\n", | |
| l_seg->newlen, cblkno, p_pi->precno, bandno, p_pi->resno, p_pi->compno); | |
| if (!JPWL_ASSUME) { | |
| opj_event_msg(p_manager, EVT_ERROR, "JPWL: giving up\n"); | |
| return -999; | |
| } | |
| l_seg->newlen = 8192 - l_cblk->len; | |
| opj_event_msg(p_manager, EVT_WARNING, " - truncating segment to %d\n", | |
| l_seg->newlen); | |
| break; | |
| }; | |
| #endif /* USE_JPWL */ | |
| JAS_FPRINTF(stderr, "p_data_read (%d) newlen (%d) \n", *p_data_read, | |
| l_seg->newlen); | |
| *(p_data_read) += l_seg->newlen; | |
| l_seg->numpasses += l_seg->numnewpasses; | |
| l_cblk->numnewpasses -= l_seg->numnewpasses; | |
| if (l_cblk->numnewpasses > 0) { | |
| ++l_seg; | |
| ++l_cblk->numsegs; | |
| } | |
| } while (l_cblk->numnewpasses > 0); | |
| ++l_cblk; | |
| } | |
| ++l_band; | |
| } | |
| return OPJ_TRUE; | |
| } | |
| static OPJ_BOOL opj_t2_init_seg(opj_tcd_cblk_dec_t* cblk, | |
| OPJ_UINT32 index, | |
| OPJ_UINT32 cblksty, | |
| OPJ_UINT32 first) | |
| { | |
| opj_tcd_seg_t* seg = 00; | |
| OPJ_UINT32 l_nb_segs = index + 1; | |
| if (l_nb_segs > cblk->m_current_max_segs) { | |
| opj_tcd_seg_t* new_segs; | |
| OPJ_UINT32 l_m_current_max_segs = cblk->m_current_max_segs + | |
| OPJ_J2K_DEFAULT_NB_SEGS; | |
| new_segs = (opj_tcd_seg_t*) opj_realloc(cblk->segs, | |
| l_m_current_max_segs * sizeof(opj_tcd_seg_t)); | |
| if (! new_segs) { | |
| /* opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to initialize segment %d\n", l_nb_segs); */ | |
| return OPJ_FALSE; | |
| } | |
| cblk->segs = new_segs; | |
| memset(new_segs + cblk->m_current_max_segs, | |
| 0, OPJ_J2K_DEFAULT_NB_SEGS * sizeof(opj_tcd_seg_t)); | |
| cblk->m_current_max_segs = l_m_current_max_segs; | |
| } | |
| seg = &cblk->segs[index]; | |
| opj_tcd_reinit_segment(seg); | |
| if (cblksty & J2K_CCP_CBLKSTY_TERMALL) { | |
| seg->maxpasses = 1; | |
| } else if (cblksty & J2K_CCP_CBLKSTY_LAZY) { | |
| if (first) { | |
| seg->maxpasses = 10; | |
| } else { | |
| seg->maxpasses = (((seg - 1)->maxpasses == 1) || | |
| ((seg - 1)->maxpasses == 10)) ? 2 : 1; | |
| } | |
| } else { | |
| /* See paragraph "B.10.6 Number of coding passes" of the standard. | |
| * Probably that 109 must be interpreted a (Mb-1)*3 + 1 with Mb=37, | |
| * Mb being the maximum number of bit-planes available for the | |
| * representation of coefficients in the sub-band */ | |
| seg->maxpasses = 109; | |
| } | |
| return OPJ_TRUE; | |
| } |