/*
- * 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
+ * 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, Professor Benoit Macq
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
- * Copyright (c) 2003-2007, Francois-Olivier Devaux
+ * Copyright (c) 2003-2007, 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) 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
*/
#include "opj_includes.h"
+#include "opj_common.h"
+
/** @defgroup T2 T2 - Implementation of a tier-2 coding */
/*@{*/
static void opj_t2_putcommacode(opj_bio_t *bio, OPJ_INT32 n);
-static OPJ_UINT32 opj_t2_getcommacode(opj_bio_t *bio);
+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 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);
+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 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);
-
-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);
-
-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);
+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_BYTE *p_src_data,
OPJ_UINT32 * p_data_read,
OPJ_UINT32 p_max_length,
- opj_packet_info_t *pack_info);
+ 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_packet_info_t *pack_info,
+ opj_event_mgr_t *p_manager);
/**
@param cblk
@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);
+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 void opj_t2_putcommacode(opj_bio_t *bio, OPJ_INT32 n)
+{
+ while (--n >= 0) {
+ opj_bio_putbit(bio, 1);
+ }
+ opj_bio_putbit(bio, 0);
}
-OPJ_UINT32 opj_t2_getcommacode(opj_bio_t *bio)
+static OPJ_UINT32 opj_t2_getcommacode(opj_bio_t *bio)
{
OPJ_UINT32 n = 0;
while (opj_bio_read(bio, 1)) {
- ++n;
+ ++n;
}
return n;
}
-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 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);
+ }
}
-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));
+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_UINT32 p_tp_num,
- OPJ_INT32 p_tp_pos,
- OPJ_UINT32 p_pino,
- J2K_T2_MODE p_t2_mode)
+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);
- if (!l_pi) {
- return OPJ_FALSE;
- }
+ 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;
+ * p_data_written = 0;
- if (p_t2_mode == THRESH_CALC ){ /* Calculating threshold */
- l_current_pi = l_pi;
+ 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 (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;
+ 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);
+ /* 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);
- while (opj_pi_next(l_current_pi)) {
- if (l_current_pi->layno < p_maxlayers) {
- l_nb_bytes = 0;
+ 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;
+ }
- 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)) {
- 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;
- l_comp_len += l_nb_bytes;
- l_current_data += l_nb_bytes;
- p_max_len -= l_nb_bytes;
+ * p_data_written += 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 (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;
- }
- }
+ 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);
- ++l_current_pi;
- }
- }
+ 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;
+ }
}
- 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];
+ while (opj_pi_next(l_current_pi)) {
+ if (l_current_pi->layno < p_maxlayers) {
+ l_nb_bytes = 0;
- 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)) {
- 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;
-
- /* 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*/
- }
+ 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;
- cstr_info->packno++;
- }
- /* << INDEX */
- ++p_tile->packno;
+ 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);
+ opj_pi_destroy(l_pi, l_nb_pocs);
- return OPJ_TRUE;
+ return OPJ_TRUE;
}
/* see issue 80 */
/* issue 290 */
static void opj_null_jas_fprintf(FILE* file, const char * format, ...)
{
- (void)file;
- (void)format;
+ (void)file;
+ (void)format;
}
#define JAS_FPRINTF opj_null_jas_fprintf
#endif
-OPJ_BOOL opj_t2_decode_packets( opj_t2_t *p_t2,
- OPJ_UINT32 p_tile_no,
- opj_tcd_tile_t *p_tile,
- OPJ_BYTE *p_src,
- OPJ_UINT32 * p_data_read,
- OPJ_UINT32 p_max_len,
- opj_codestream_index_t *p_cstr_index)
+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;
+ 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_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);
+ 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;
- }
+ 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);
- if (!l_pi) {
- return OPJ_FALSE;
- }
+ /* 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;
+ 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 = (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));
+ for (pino = 0; pino <= l_tcp->numpocs; ++pino) {
- while (opj_pi_next(l_current_pi)) {
- 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 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_tcp->num_layers_to_decode > l_current_pi->layno
- && l_current_pi->resno < p_tile->comps[l_current_pi->compno].minimum_num_resolutions) {
- l_nb_bytes_read = 0;
+ 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[l_current_pi->compno] = 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;
- 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)) {
- opj_pi_destroy(l_pi,l_nb_pocs);
- opj_free(first_pass_failed);
- return OPJ_FALSE;
- }
+ first_pass_failed[l_current_pi->compno] = 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)) {
- opj_pi_destroy(l_pi,l_nb_pocs);
- opj_free(first_pass_failed);
- return 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;
+ }
- 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_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;
+ }
+ }
- l_current_data += l_nb_bytes_read;
- p_max_len -= l_nb_bytes_read;
+ 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 >> */
+ /* 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 */
+ 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;
}
- ++l_current_pi;
-
- opj_free(first_pass_failed);
+ 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 */
}
- /* 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 */
- }
+ 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 */
+ /* << 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;
+ /* 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;
}
/* ----------------------------------------------------------------------- */
*/
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;
- }
+ /* 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;
+ l_t2->image = p_image;
+ l_t2->cp = p_cp;
- return l_t2;
+ return l_t2;
}
-void opj_t2_destroy(opj_t2_t *t2) {
- if(t2) {
- opj_free(t2);
- }
+void opj_t2_destroy(opj_t2_t *t2)
+{
+ if (t2) {
+ opj_free(t2);
+ }
}
-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)
+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;
+ OPJ_BOOL l_read_data;
+ OPJ_UINT32 l_nb_bytes_read = 0;
+ OPJ_UINT32 l_nb_total_bytes_read = 0;
- *p_data_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)) {
- return OPJ_FALSE;
- }
+ 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;
+ 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;
+ /* 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)) {
- return OPJ_FALSE;
- }
-
- l_nb_total_bytes_read += l_nb_bytes_read;
+ 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;
}
- *p_data_read = l_nb_total_bytes_read;
+ l_nb_total_bytes_read += l_nb_bytes_read;
+ }
- return OPJ_TRUE;
+ *p_data_read = l_nb_total_bytes_read;
+
+ return OPJ_TRUE;
}
-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)
+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 */
-
- /* <SOP 0xff91> */
- if (tcp->csty & J2K_CP_CSTY_SOP) {
- 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;
+ 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
- c[4] = (tile->packno >> 8) & 0xff; /* packno is uint32_t */
- c[5] = tile->packno & 0xff;
+ OPJ_BOOL packet_empty = OPJ_FALSE;
#endif
- c += 6;
- length -= 6;
- }
- /* </SOP> */
-
- if (!layno) {
- band = res->bands;
-
- for(bandno = 0; bandno < res->numbands; ++bandno) {
- opj_tcd_precinct_t *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);
- }
- ++band;
- }
- }
+#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
- bio = opj_bio_create();
- if (!bio) {
- /* FIXME event manager error callback */
- return OPJ_FALSE;
+ /* <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;
}
- opj_bio_init_enc(bio, c, length);
- opj_bio_write(bio, 1, 1); /* Empty header bit */
+ 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> */
- /* Writing Packet header */
+ if (!layno) {
band = res->bands;
- for (bandno = 0; bandno < res->numbands; ++bandno) {
- opj_tcd_precinct_t *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;
- }
+ for (bandno = 0; bandno < res->numbands; ++bandno, ++band) {
+ opj_tcd_precinct_t *prc;
- 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);
- }
+ /* Skip empty bands */
+ if (opj_tcd_is_band_empty(band)) {
+ continue;
+ }
- /* 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;
- }
+ /* 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;
+ }
- ++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;
- }
+ prc = &band->precincts[precno];
+ opj_tgt_reset(prc->incltree);
+ opj_tgt_reset(prc->imsbtree);
- ++cblk;
- }
+ l_nb_blocks = prc->cw * prc->ch;
+ for (cblkno = 0; cblkno < l_nb_blocks; ++cblkno) {
+ cblk = &prc->cblks.enc[cblkno];
- ++band;
+ cblk->numpasses = 0;
+ opj_tgt_setvalue(prc->imsbtree, cblkno, band->numbps - (OPJ_INT32)cblk->numbps);
+ }
}
+ }
- if (!opj_bio_flush(bio)) {
- opj_bio_destroy(bio);
- return OPJ_FALSE; /* modified to eliminate longjmp !! */
+ 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;
}
- l_nb_bytes = (OPJ_UINT32)opj_bio_numbytes(bio);
- c += l_nb_bytes;
- length -= l_nb_bytes;
+ 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 */
- opj_bio_destroy(bio);
+ /* Writing Packet header */
+ band = res->bands;
+ for (bandno = 0; !packet_empty &&
+ bandno < res->numbands; ++bandno, ++band) {
+ opj_tcd_precinct_t *prc;
- /* <EPH 0xff92> */
- if (tcp->csty & J2K_CP_CSTY_EPH) {
- c[0] = 255;
- c[1] = 146;
- c += 2;
- length -= 2;
+ /* Skip empty bands */
+ if (opj_tcd_is_band_empty(band)) {
+ continue;
}
- /* </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);
+ /* 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;
}
- /* INDEX >> */
- /* Writing the packet body */
- band = res->bands;
- for (bandno = 0; bandno < res->numbands; bandno++) {
- opj_tcd_precinct_t *prc = &band->precincts[precno];
-
- l_nb_blocks = prc->cw * prc->ch;
- cblk = prc->cblks.enc;
+ 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];
+ 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) {
- return OPJ_FALSE;
- }
+ if (!cblk->numpasses && layer->numpasses) {
+ opj_tgt_setvalue(prc->incltree, cblkno, (OPJ_INT32)layno);
+ }
- 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;
+ }
- ++cblk;
- /* INDEX >> */
+ 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;
}
- ++band;
- }
- assert( c >= dest );
- * p_data_written += (OPJ_UINT32)(c - dest);
+ ++pass;
+ }
+ opj_t2_putcommacode(bio, (OPJ_INT32)increment);
- return OPJ_TRUE;
-}
+ /* computation of the new Length indicator */
+ cblk->numlenbits += increment;
-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_BOOL l_read_data;
- OPJ_UINT32 l_nb_bytes_read = 0;
- OPJ_UINT32 l_nb_total_bytes_read = 0;
+ pass = cblk->passes + cblk->numpasses;
+ /* insertion of the codeword segment length */
+ for (passno = cblk->numpasses; passno < l_nb_passes; ++passno) {
+ nump++;
+ len += pass->len;
- *p_data_read = 0;
+ 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;
+ }
- 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)) {
- return OPJ_FALSE;
+ ++cblk;
}
+ }
- p_src += l_nb_bytes_read;
- l_nb_total_bytes_read += l_nb_bytes_read;
- p_max_length -= l_nb_bytes_read;
+ if (!opj_bio_flush(bio)) {
+ opj_bio_destroy(bio);
+ return OPJ_FALSE; /* modified to eliminate longjmp !! */
+ }
- /* we should read data for the packet */
- if (l_read_data) {
- l_nb_bytes_read = 0;
+ 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 >> */
- if (! opj_t2_skip_packet_data(p_t2,p_tile,p_pi,&l_nb_bytes_read,p_max_length,p_pack_info)) {
- return OPJ_FALSE;
- }
+ /* Writing the packet body */
+ band = res->bands;
+ for (bandno = 0; !packet_empty && bandno < res->numbands; bandno++, ++band) {
+ opj_tcd_precinct_t *prc;
- l_nb_total_bytes_read += l_nb_bytes_read;
+ /* Skip empty bands */
+ if (opj_tcd_is_band_empty(band)) {
+ continue;
}
- *p_data_read = l_nb_total_bytes_read;
- return OPJ_TRUE;
-}
+ 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];
-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)
+ if (!layer->numpasses) {
+ ++cblk;
+ continue;
+ }
-{
- /* 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) {
- 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)) ) {
- 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;
+ 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;
+ }
- /* SOP markers */
+ if (p_t2_mode == FINAL_PASS) {
+ memcpy(c, layer->data, layer->len);
+ }
+ cblk->numpasses += layer->numpasses;
+ c += layer->len;
+ length -= layer->len;
- if (p_tcp->csty & J2K_CP_CSTY_SOP) {
- if (p_max_length < 6) {
- /* TODO opj_event_msg(p_t2->cinfo->event_mgr, EVT_WARNING, "Not enough space for expected SOP marker\n"); */
- fprintf(stderr, "Not enough space for expected SOP marker\n");
- } else if ((*l_current_data) != 0xff || (*(l_current_data + 1) != 0x91)) {
- /* TODO opj_event_msg(p_t2->cinfo->event_mgr, EVT_WARNING, "Expected SOP marker\n"); */
- fprintf(stderr, "Warning: expected SOP marker\n");
- } else {
- l_current_data += 6;
+ /* << 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;
}
+ }
- /** TODO : check the Nsop value */
+ ++cblk;
+ /* INDEX >> */
}
+ }
- /*
- When the marker PPT/PPM is used the packet header are store in PPT/PPM marker
- This part deal with this caracteristic
- step 1: Read packet header in the saved structure
- step 2: Return to codestream for decoding
- */
+ assert(c >= dest);
+ * p_data_written += (OPJ_UINT32)(c - dest);
- l_bio = opj_bio_create();
- if (! l_bio) {
- return OPJ_FALSE;
- }
+ return OPJ_TRUE;
+}
- 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);
+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;
- }
- 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);
- }
+ *p_data_read = 0;
- 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) {
- fprintf(stderr, "Not enough space for expected EPH marker\n");
- } else if ((*l_header_data) != 0xff || (*(l_header_data + 1) != 0x92)) {
- fprintf(stderr, "Error : expected EPH marker\n");
- } else {
- l_header_data += 2;
- }
- }
+ 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;
+ }
- 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;
+ p_src += l_nb_bytes_read;
+ l_nb_total_bytes_read += l_nb_bytes_read;
+ p_max_length -= l_nb_bytes_read;
- /* << 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 >> */
+ /* we should read data for the packet */
+ if (l_read_data) {
+ l_nb_bytes_read = 0;
- * p_is_data_present = OPJ_FALSE;
- *p_data_read = (OPJ_UINT32)(l_current_data - p_src_data);
- return OPJ_TRUE;
+ 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_band = l_res->bands;
- for (bandno = 0; bandno < l_res->numbands; ++bandno) {
- opj_tcd_precinct_t *l_prc = &(l_band->precincts[p_pi->precno]);
+ l_nb_total_bytes_read += l_nb_bytes_read;
+ }
+ *p_data_read = l_nb_total_bytes_read;
- if ((l_band->x1-l_band->x0 == 0)||(l_band->y1-l_band->y0 == 0)) {
- ++l_band;
- continue;
- }
+ return OPJ_TRUE;
+}
- 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;
- }
+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)
- /* if cblk not yet included --> zero-bitplane tagtree */
- if (!l_cblk->numsegs) {
- OPJ_UINT32 i = 0;
+{
+ /* 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;
- while (!opj_tgt_decode(l_bio, l_prc->imsbtree, cblkno, (OPJ_INT32)i)) {
- ++i;
- }
+ /* 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;
+ }
- 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);
+ opj_tgt_reset(l_prc->incltree);
+ opj_tgt_reset(l_prc->imsbtree);
+ l_cblk = l_prc->cblks.dec;
- /* length indicator increment */
- l_cblk->numlenbits += l_increment;
- l_segno = 0;
+ 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;
+ }
+ }
- 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;
+ ++l_band;
+ }
+ }
- do {
- 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);
- l_cblk->segs[l_segno].newlen = opj_bio_read(l_bio, l_cblk->numlenbits + opj_uint_floorlog2(l_cblk->segs[l_segno].numnewpasses));
- 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 );
+ /* SOP markers */
- n -= (OPJ_INT32)l_cblk->segs[l_segno].numnewpasses;
- if (n > 0) {
- ++l_segno;
+ 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;
+ }
- 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);
+ /** TODO : check the Nsop value */
+ }
- ++l_cblk;
- }
+ /*
+ 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_band;
- }
+ l_bio = opj_bio_create();
+ if (! l_bio) {
+ return OPJ_FALSE;
+ }
- if (!opj_bio_inalign(l_bio)) {
- opj_bio_destroy(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) {
- fprintf(stderr, "Not enough space for expected EPH marker\n");
- } else if ((*l_header_data) != 0xff || (*(l_header_data + 1) != 0x92)) {
- /* TODO opj_event_msg(t2->cinfo->event_mgr, EVT_ERROR, "Expected EPH marker\n"); */
- fprintf(stderr, "Error : expected EPH marker\n");
- } else {
- l_header_data += 2;
- }
+ 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 */
+ 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);
+ p_pack_info->end_ph_pos = (OPJ_INT32)(l_current_data - p_src_data);
}
/* INDEX >> */
- *p_is_data_present = OPJ_TRUE;
+ * p_is_data_present = OPJ_FALSE;
*p_data_read = (OPJ_UINT32)(l_current_data - p_src_data);
-
return OPJ_TRUE;
-}
-
-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_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_ARG_NOT_USED(p_t2);
- OPJ_ARG_NOT_USED(pack_info);
+ 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]);
- 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 (opj_tcd_is_band_empty(l_band)) {
+ continue;
+ }
- 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_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_nb_code_blocks = l_prc->cw * l_prc->ch;
- l_cblk = l_prc->cblks.dec;
+ l_cblk->Mb = (OPJ_UINT32)l_band->numbps;
+ l_cblk->numbps = (OPJ_UINT32)l_band->numbps + 1 - i;
+ l_cblk->numlenbits = 3;
+ }
- for (cblkno = 0; cblkno < l_nb_code_blocks; ++cblkno) {
- opj_tcd_seg_t *l_seg = 00;
+ /* number of coding passes */
+ l_cblk->numnewpasses = opj_t2_getnumpasses(l_bio);
+ l_increment = opj_t2_getcommacode(l_bio);
- if (!l_cblk->numnewpasses) {
- /* nothing to do */
- ++l_cblk;
- continue;
- }
+ /* length indicator increment */
+ l_cblk->numlenbits += l_increment;
+ l_segno = 0;
- if (!l_cblk->numsegs) {
- l_seg = l_cblk->segs;
- ++l_cblk->numsegs;
- l_cblk->data_current_size = 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;
}
- else {
- l_seg = &l_cblk->segs[l_cblk->numsegs - 1];
-
- if (l_seg->numpasses == l_seg->maxpasses) {
- ++l_seg;
- ++l_cblk->numsegs;
- }
+ }
+ } 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);
- do {
- /* Check possible overflow (on l_current_data only, assumes input args already checked) then size */
- if (((OPJ_SIZE_T)(l_current_data + l_seg->newlen) < (OPJ_SIZE_T)l_current_data) || (l_current_data + l_seg->newlen > p_src_data + p_max_length)) {
- fprintf(stderr, "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;
- }
+ ++l_cblk;
+ }
+ }
-#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_t2->cinfo, 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_t2->cinfo, EVT_ERROR, "JPWL: giving up\n");
- return OPJ_FALSE;
- }
- l_seg->newlen = 8192 - l_cblk->len;
- opj_event_msg(p_t2->cinfo, EVT_WARNING, " - truncating segment to %d\n", l_seg->newlen);
- break;
- };
+ if (!opj_bio_inalign(l_bio)) {
+ opj_bio_destroy(l_bio);
+ return OPJ_FALSE;
+ }
-#endif /* USE_JPWL */
- /* Check if the cblk->data have allocated enough memory */
- if ((l_cblk->data_current_size + l_seg->newlen) > l_cblk->data_max_size) {
- OPJ_BYTE* new_cblk_data = (OPJ_BYTE*) opj_realloc(l_cblk->data, l_cblk->data_current_size + l_seg->newlen);
- if(! new_cblk_data) {
- opj_free(l_cblk->data);
- l_cblk->data = NULL;
- l_cblk->data_max_size = 0;
- /* opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to realloc code block cata!\n"); */
- return OPJ_FALSE;
- }
- l_cblk->data_max_size = l_cblk->data_current_size + l_seg->newlen;
- l_cblk->data = new_cblk_data;
- }
-
- memcpy(l_cblk->data + l_cblk->data_current_size, l_current_data, l_seg->newlen);
-
- if (l_seg->numpasses == 0) {
- l_seg->data = &l_cblk->data;
- l_seg->dataindex = l_cblk->data_current_size;
- }
-
- l_current_data += l_seg->newlen;
- l_seg->numpasses += l_seg->numnewpasses;
- l_cblk->numnewpasses -= l_seg->numnewpasses;
-
- l_seg->real_num_passes = l_seg->numpasses;
- l_cblk->data_current_size += l_seg->newlen;
- l_seg->len += l_seg->newlen;
-
- 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;
+ 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;
}
+ }
- *(p_data_read) = (OPJ_UINT32)(l_current_data - p_src_data);
+ 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;
+ return OPJ_TRUE;
}
-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)
+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_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_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;
+ }
- OPJ_ARG_NOT_USED(p_t2);
- OPJ_ARG_NOT_USED(pack_info);
+ 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;
+ }
+ }
- *p_data_read = 0;
- l_band = l_res->bands;
+#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;
+ };
- for (bandno = 0; bandno < l_res->numbands; ++bandno) {
- opj_tcd_precinct_t *l_prc = &l_band->precincts[p_pi->precno];
+#endif /* USE_JPWL */
- if ((l_band->x1-l_band->x0 == 0)||(l_band->y1-l_band->y0 == 0)) {
- ++l_band;
- continue;
+ 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_nb_code_blocks = l_prc->cw * l_prc->ch;
- l_cblk = l_prc->cblks.dec;
+ l_cblk->chunks[l_cblk->numchunks].data = l_current_data;
+ l_cblk->chunks[l_cblk->numchunks].len = l_seg->newlen;
+ l_cblk->numchunks ++;
- for (cblkno = 0; cblkno < l_nb_code_blocks; ++cblkno) {
- opj_tcd_seg_t *l_seg = 00;
+ l_current_data += l_seg->newlen;
+ l_seg->len += l_seg->newlen;
+ l_seg->numpasses += l_seg->numnewpasses;
+ l_cblk->numnewpasses -= l_seg->numnewpasses;
- if (!l_cblk->numnewpasses) {
- /* nothing to do */
- ++l_cblk;
- continue;
- }
+ l_seg->real_num_passes = l_seg->numpasses;
- if (!l_cblk->numsegs) {
- l_seg = l_cblk->segs;
- ++l_cblk->numsegs;
- l_cblk->data_current_size = 0;
- }
- else {
- l_seg = &l_cblk->segs[l_cblk->numsegs - 1];
+ if (l_cblk->numnewpasses > 0) {
+ ++l_seg;
+ ++l_cblk->numsegs;
+ }
+ } while (l_cblk->numnewpasses > 0);
- if (l_seg->numpasses == l_seg->maxpasses) {
- ++l_seg;
- ++l_cblk->numsegs;
- }
- }
+ 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];
- do {
- if (* p_data_read + l_seg->newlen > p_max_length) {
- fprintf(stderr, "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;
- }
+ 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);
+ 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_t2->cinfo, 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_t2->cinfo, EVT_ERROR, "JPWL: giving up\n");
- return -999;
- }
- l_seg->newlen = 8192 - l_cblk->len;
- opj_event_msg(p_t2->cinfo, EVT_WARNING, " - truncating segment to %d\n", l_seg->newlen);
- break;
- };
+ /* 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;
+ 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_band;
+ ++l_cblk;
}
- return OPJ_TRUE;
+ ++l_band;
+ }
+
+ return OPJ_TRUE;
}
-OPJ_BOOL opj_t2_init_seg( opj_tcd_cblk_dec_t* cblk,
- OPJ_UINT32 index,
- OPJ_UINT32 cblksty,
- OPJ_UINT32 first)
+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;
- cblk->m_current_max_segs += OPJ_J2K_DEFAULT_NB_SEGS;
-
- new_segs = (opj_tcd_seg_t*) opj_realloc(cblk->segs, cblk->m_current_max_segs * sizeof(opj_tcd_seg_t));
- if(! new_segs) {
- opj_free(cblk->segs);
- cblk->segs = NULL;
- cblk->m_current_max_segs = 0;
- /* 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;
+ 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];
- memset(seg,0,sizeof(opj_tcd_seg_t));
+ 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;
- }
+ if (cblksty & J2K_CCP_CBLKSTY_TERMALL) {
+ seg->maxpasses = 1;
+ } else if (cblksty & J2K_CCP_CBLKSTY_LAZY) {
+ if (first) {
+ seg->maxpasses = 10;
} else {
- seg->maxpasses = 109;
+ 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;
+ return OPJ_TRUE;
}
projects / openjpeg.git / blobdiff