| /* |
| * 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_write(bio, 1, 1); |
| } |
| opj_bio_write(bio, 0, 1); |
| } |
| |
| 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_write(bio, 0, 1); |
| } 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_write(bio, packet_empty ? 0 : 1, 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_write(bio, layer->numpasses != 0, 1); |
| } |
| |
| /* 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; |
| } |
| |
| 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) { |
| 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) { |
| if ((*l_modified_length_ptr - (OPJ_UINT32)(l_header_data - |
| *l_header_data_start)) < 2U) { |
| opj_event_msg(p_manager, EVT_WARNING, |
| "Not enough space for expected EPH marker\n"); |
| } else if ((*l_header_data) != 0xff || (*(l_header_data + 1) != 0x92)) { |
| opj_event_msg(p_manager, EVT_WARNING, "Expected EPH marker\n"); |
| } 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; |
| 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) { |
| if ((*l_modified_length_ptr - (OPJ_UINT32)(l_header_data - |
| *l_header_data_start)) < 2U) { |
| opj_event_msg(p_manager, EVT_WARNING, |
| "Not enough space for expected EPH marker\n"); |
| } else if ((*l_header_data) != 0xff || (*(l_header_data + 1) != 0x92)) { |
| opj_event_msg(p_manager, EVT_WARNING, "Expected EPH marker\n"); |
| } 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); |
| 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) { |
| opj_tcd_seg_t *l_seg = 00; |
| |
| // if we have a partial data stream, set numchunks to zero |
| // since we have no data to actually decode. |
| if (partial_buffer) { |
| l_cblk->numchunks = 0; |
| } |
| |
| 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 (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 since it is a partial read |
| partial_buffer = OPJ_TRUE; |
| l_cblk->numchunks = 0; |
| |
| l_seg->numpasses += l_seg->numnewpasses; |
| l_cblk->numnewpasses -= l_seg->numnewpasses; |
| if (l_cblk->numnewpasses > 0) { |
| ++l_seg; |
| ++l_cblk->numsegs; |
| break; |
| } |
| continue; |
| } |
| } |
| |
| #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; |
| ++l_cblk; |
| } /* 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); |
| } |
| } |
| |
| #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; |
| } |
