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1572 lines
57 KiB
1572 lines
57 KiB
/*
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* The copyright in this software is being made available under the 2-clauses
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* BSD License, included below. This software may be subject to other third
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* party and contributor rights, including patent rights, and no such rights
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* are granted under this license.
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*
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* Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
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* Copyright (c) 2002-2014, Professor Benoit Macq
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* Copyright (c) 2001-2003, David Janssens
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* Copyright (c) 2002-2003, Yannick Verschueren
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* Copyright (c) 2003-2007, Francois-Olivier Devaux
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* Copyright (c) 2003-2014, Antonin Descampe
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* Copyright (c) 2005, Herve Drolon, FreeImage Team
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* Copyright (c) 2008, 2011-2012, Centre National d'Etudes Spatiales (CNES), FR
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* Copyright (c) 2012, CS Systemes d'Information, France
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* Copyright (c) 2017, IntoPIX SA <support@intopix.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "opj_includes.h"
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#include "opj_common.h"
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/** @defgroup T2 T2 - Implementation of a tier-2 coding */
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/*@{*/
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/** @name Local static functions */
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/*@{*/
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static void opj_t2_putcommacode(opj_bio_t *bio, OPJ_INT32 n);
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static OPJ_UINT32 opj_t2_getcommacode(opj_bio_t *bio);
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/**
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Variable length code for signalling delta Zil (truncation point)
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@param bio Bit Input/Output component
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@param n delta Zil
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*/
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static void opj_t2_putnumpasses(opj_bio_t *bio, OPJ_UINT32 n);
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static OPJ_UINT32 opj_t2_getnumpasses(opj_bio_t *bio);
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/**
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Encode a packet of a tile to a destination buffer
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@param tileno Number of the tile encoded
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@param tile Tile for which to write the packets
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@param tcp Tile coding parameters
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@param pi Packet identity
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@param dest Destination buffer
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@param p_data_written FIXME DOC
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@param len Length of the destination buffer
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@param cstr_info Codestream information structure
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@param p_t2_mode If == THRESH_CALC In Threshold calculation ,If == FINAL_PASS Final pass
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@param p_manager the user event manager
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@return
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*/
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static OPJ_BOOL opj_t2_encode_packet(OPJ_UINT32 tileno,
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opj_tcd_tile_t *tile,
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opj_tcp_t *tcp,
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opj_pi_iterator_t *pi,
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OPJ_BYTE *dest,
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OPJ_UINT32 * p_data_written,
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OPJ_UINT32 len,
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opj_codestream_info_t *cstr_info,
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J2K_T2_MODE p_t2_mode,
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opj_event_mgr_t *p_manager);
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/**
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Decode a packet of a tile from a source buffer
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@param t2 T2 handle
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@param tile Tile for which to write the packets
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@param tcp Tile coding parameters
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@param pi Packet identity
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@param src Source buffer
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@param data_read FIXME DOC
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@param max_length FIXME DOC
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@param pack_info Packet information
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@param p_manager the user event manager
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@return FIXME DOC
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*/
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static OPJ_BOOL opj_t2_decode_packet(opj_t2_t* t2,
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opj_tcd_tile_t *tile,
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opj_tcp_t *tcp,
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opj_pi_iterator_t *pi,
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OPJ_BYTE *src,
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OPJ_UINT32 * data_read,
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OPJ_UINT32 max_length,
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opj_packet_info_t *pack_info,
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opj_event_mgr_t *p_manager);
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static OPJ_BOOL opj_t2_skip_packet(opj_t2_t* p_t2,
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opj_tcd_tile_t *p_tile,
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opj_tcp_t *p_tcp,
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opj_pi_iterator_t *p_pi,
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OPJ_BYTE *p_src,
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OPJ_UINT32 * p_data_read,
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OPJ_UINT32 p_max_length,
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opj_packet_info_t *p_pack_info,
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opj_event_mgr_t *p_manager);
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static OPJ_BOOL opj_t2_read_packet_header(opj_t2_t* p_t2,
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opj_tcd_tile_t *p_tile,
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opj_tcp_t *p_tcp,
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opj_pi_iterator_t *p_pi,
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OPJ_BOOL * p_is_data_present,
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OPJ_BYTE *p_src_data,
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OPJ_UINT32 * p_data_read,
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OPJ_UINT32 p_max_length,
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opj_packet_info_t *p_pack_info,
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opj_event_mgr_t *p_manager);
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static OPJ_BOOL opj_t2_read_packet_data(opj_t2_t* p_t2,
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opj_tcd_tile_t *p_tile,
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opj_pi_iterator_t *p_pi,
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OPJ_BYTE *p_src_data,
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OPJ_UINT32 * p_data_read,
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OPJ_UINT32 p_max_length,
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opj_packet_info_t *pack_info,
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opj_event_mgr_t *p_manager);
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static OPJ_BOOL opj_t2_skip_packet_data(opj_t2_t* p_t2,
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opj_tcd_tile_t *p_tile,
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opj_pi_iterator_t *p_pi,
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OPJ_UINT32 * p_data_read,
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OPJ_UINT32 p_max_length,
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opj_packet_info_t *pack_info,
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opj_event_mgr_t *p_manager);
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/**
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@param cblk
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@param index
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@param cblksty
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@param first
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*/
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static OPJ_BOOL opj_t2_init_seg(opj_tcd_cblk_dec_t* cblk,
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OPJ_UINT32 index,
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OPJ_UINT32 cblksty,
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OPJ_UINT32 first);
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/*@}*/
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/*@}*/
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/* ----------------------------------------------------------------------- */
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/* #define RESTART 0x04 */
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static void opj_t2_putcommacode(opj_bio_t *bio, OPJ_INT32 n)
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{
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while (--n >= 0) {
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opj_bio_write(bio, 1, 1);
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}
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opj_bio_write(bio, 0, 1);
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}
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static OPJ_UINT32 opj_t2_getcommacode(opj_bio_t *bio)
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{
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OPJ_UINT32 n = 0;
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while (opj_bio_read(bio, 1)) {
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++n;
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}
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return n;
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}
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static void opj_t2_putnumpasses(opj_bio_t *bio, OPJ_UINT32 n)
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{
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if (n == 1) {
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opj_bio_write(bio, 0, 1);
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} else if (n == 2) {
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opj_bio_write(bio, 2, 2);
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} else if (n <= 5) {
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opj_bio_write(bio, 0xc | (n - 3), 4);
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} else if (n <= 36) {
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opj_bio_write(bio, 0x1e0 | (n - 6), 9);
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} else if (n <= 164) {
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opj_bio_write(bio, 0xff80 | (n - 37), 16);
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}
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}
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static OPJ_UINT32 opj_t2_getnumpasses(opj_bio_t *bio)
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{
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OPJ_UINT32 n;
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if (!opj_bio_read(bio, 1)) {
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return 1;
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}
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if (!opj_bio_read(bio, 1)) {
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return 2;
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}
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if ((n = opj_bio_read(bio, 2)) != 3) {
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return (3 + n);
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}
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if ((n = opj_bio_read(bio, 5)) != 31) {
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return (6 + n);
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}
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return (37 + opj_bio_read(bio, 7));
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}
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/* ----------------------------------------------------------------------- */
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OPJ_BOOL opj_t2_encode_packets(opj_t2_t* p_t2,
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OPJ_UINT32 p_tile_no,
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opj_tcd_tile_t *p_tile,
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OPJ_UINT32 p_maxlayers,
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OPJ_BYTE *p_dest,
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OPJ_UINT32 * p_data_written,
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OPJ_UINT32 p_max_len,
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opj_codestream_info_t *cstr_info,
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OPJ_UINT32 p_tp_num,
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OPJ_INT32 p_tp_pos,
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OPJ_UINT32 p_pino,
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J2K_T2_MODE p_t2_mode,
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opj_event_mgr_t *p_manager)
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{
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OPJ_BYTE *l_current_data = p_dest;
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OPJ_UINT32 l_nb_bytes = 0;
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OPJ_UINT32 compno;
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OPJ_UINT32 poc;
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opj_pi_iterator_t *l_pi = 00;
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opj_pi_iterator_t *l_current_pi = 00;
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opj_image_t *l_image = p_t2->image;
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opj_cp_t *l_cp = p_t2->cp;
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opj_tcp_t *l_tcp = &l_cp->tcps[p_tile_no];
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OPJ_UINT32 pocno = (l_cp->rsiz == OPJ_PROFILE_CINEMA_4K) ? 2 : 1;
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OPJ_UINT32 l_max_comp = l_cp->m_specific_param.m_enc.m_max_comp_size > 0 ?
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l_image->numcomps : 1;
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OPJ_UINT32 l_nb_pocs = l_tcp->numpocs + 1;
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l_pi = opj_pi_initialise_encode(l_image, l_cp, p_tile_no, p_t2_mode);
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if (!l_pi) {
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return OPJ_FALSE;
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}
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* p_data_written = 0;
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if (p_t2_mode == THRESH_CALC) { /* Calculating threshold */
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l_current_pi = l_pi;
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for (compno = 0; compno < l_max_comp; ++compno) {
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OPJ_UINT32 l_comp_len = 0;
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l_current_pi = l_pi;
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for (poc = 0; poc < pocno ; ++poc) {
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OPJ_UINT32 l_tp_num = compno;
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/* TODO MSD : check why this function cannot fail (cf. v1) */
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opj_pi_create_encode(l_pi, l_cp, p_tile_no, poc, l_tp_num, p_tp_pos, p_t2_mode);
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if (l_current_pi->poc.prg == OPJ_PROG_UNKNOWN) {
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/* TODO ADE : add an error */
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opj_pi_destroy(l_pi, l_nb_pocs);
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return OPJ_FALSE;
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}
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while (opj_pi_next(l_current_pi)) {
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if (l_current_pi->layno < p_maxlayers) {
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l_nb_bytes = 0;
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if (! opj_t2_encode_packet(p_tile_no, p_tile, l_tcp, l_current_pi,
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l_current_data, &l_nb_bytes,
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p_max_len, cstr_info,
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p_t2_mode,
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p_manager)) {
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opj_pi_destroy(l_pi, l_nb_pocs);
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return OPJ_FALSE;
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}
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l_comp_len += l_nb_bytes;
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l_current_data += l_nb_bytes;
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p_max_len -= l_nb_bytes;
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* p_data_written += l_nb_bytes;
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}
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}
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if (l_cp->m_specific_param.m_enc.m_max_comp_size) {
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if (l_comp_len > l_cp->m_specific_param.m_enc.m_max_comp_size) {
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opj_pi_destroy(l_pi, l_nb_pocs);
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return OPJ_FALSE;
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}
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}
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++l_current_pi;
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}
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}
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} else { /* t2_mode == FINAL_PASS */
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opj_pi_create_encode(l_pi, l_cp, p_tile_no, p_pino, p_tp_num, p_tp_pos,
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p_t2_mode);
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l_current_pi = &l_pi[p_pino];
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if (l_current_pi->poc.prg == OPJ_PROG_UNKNOWN) {
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/* TODO ADE : add an error */
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opj_pi_destroy(l_pi, l_nb_pocs);
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return OPJ_FALSE;
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}
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while (opj_pi_next(l_current_pi)) {
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if (l_current_pi->layno < p_maxlayers) {
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l_nb_bytes = 0;
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if (! opj_t2_encode_packet(p_tile_no, p_tile, l_tcp, l_current_pi,
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l_current_data, &l_nb_bytes, p_max_len,
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cstr_info, p_t2_mode, p_manager)) {
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opj_pi_destroy(l_pi, l_nb_pocs);
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return OPJ_FALSE;
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}
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l_current_data += l_nb_bytes;
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p_max_len -= l_nb_bytes;
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* p_data_written += l_nb_bytes;
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/* INDEX >> */
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if (cstr_info) {
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if (cstr_info->index_write) {
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opj_tile_info_t *info_TL = &cstr_info->tile[p_tile_no];
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opj_packet_info_t *info_PK = &info_TL->packet[cstr_info->packno];
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if (!cstr_info->packno) {
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info_PK->start_pos = info_TL->end_header + 1;
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} else {
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info_PK->start_pos = ((l_cp->m_specific_param.m_enc.m_tp_on | l_tcp->POC) &&
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info_PK->start_pos) ? info_PK->start_pos : info_TL->packet[cstr_info->packno -
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1].end_pos + 1;
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}
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info_PK->end_pos = info_PK->start_pos + l_nb_bytes - 1;
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info_PK->end_ph_pos += info_PK->start_pos -
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1; /* End of packet header which now only represents the distance
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to start of packet is incremented by value of start of packet*/
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}
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cstr_info->packno++;
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}
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/* << INDEX */
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++p_tile->packno;
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}
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}
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}
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opj_pi_destroy(l_pi, l_nb_pocs);
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return OPJ_TRUE;
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}
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/* see issue 80 */
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#if 0
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#define JAS_FPRINTF fprintf
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#else
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/* issue 290 */
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static void opj_null_jas_fprintf(FILE* file, const char * format, ...)
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{
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(void)file;
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(void)format;
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}
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#define JAS_FPRINTF opj_null_jas_fprintf
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#endif
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OPJ_BOOL opj_t2_decode_packets(opj_tcd_t* tcd,
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opj_t2_t *p_t2,
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OPJ_UINT32 p_tile_no,
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opj_tcd_tile_t *p_tile,
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OPJ_BYTE *p_src,
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OPJ_UINT32 * p_data_read,
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OPJ_UINT32 p_max_len,
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opj_codestream_index_t *p_cstr_index,
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opj_event_mgr_t *p_manager)
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{
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OPJ_BYTE *l_current_data = p_src;
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opj_pi_iterator_t *l_pi = 00;
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OPJ_UINT32 pino;
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opj_image_t *l_image = p_t2->image;
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opj_cp_t *l_cp = p_t2->cp;
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opj_tcp_t *l_tcp = &(p_t2->cp->tcps[p_tile_no]);
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OPJ_UINT32 l_nb_bytes_read;
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OPJ_UINT32 l_nb_pocs = l_tcp->numpocs + 1;
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opj_pi_iterator_t *l_current_pi = 00;
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#ifdef TODO_MSD
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OPJ_UINT32 curtp = 0;
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OPJ_UINT32 tp_start_packno;
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#endif
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opj_packet_info_t *l_pack_info = 00;
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opj_image_comp_t* l_img_comp = 00;
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OPJ_ARG_NOT_USED(p_cstr_index);
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#ifdef TODO_MSD
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if (p_cstr_index) {
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l_pack_info = p_cstr_index->tile_index[p_tile_no].packet;
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}
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#endif
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/* create a packet iterator */
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l_pi = opj_pi_create_decode(l_image, l_cp, p_tile_no);
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if (!l_pi) {
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return OPJ_FALSE;
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}
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|
|
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l_current_pi = l_pi;
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|
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for (pino = 0; pino <= l_tcp->numpocs; ++pino) {
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|
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/* if the resolution needed is too low, one dim of the tilec could be equal to zero
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* and no packets are used to decode this resolution and
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* l_current_pi->resno is always >= p_tile->comps[l_current_pi->compno].minimum_num_resolutions
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* and no l_img_comp->resno_decoded are computed
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*/
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OPJ_BOOL* first_pass_failed = NULL;
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|
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if (l_current_pi->poc.prg == OPJ_PROG_UNKNOWN) {
|
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/* TODO ADE : add an error */
|
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opj_pi_destroy(l_pi, l_nb_pocs);
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return OPJ_FALSE;
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}
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|
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first_pass_failed = (OPJ_BOOL*)opj_malloc(l_image->numcomps * sizeof(OPJ_BOOL));
|
|
if (!first_pass_failed) {
|
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opj_pi_destroy(l_pi, l_nb_pocs);
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return OPJ_FALSE;
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}
|
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memset(first_pass_failed, OPJ_TRUE, l_image->numcomps * sizeof(OPJ_BOOL));
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|
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while (opj_pi_next(l_current_pi)) {
|
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OPJ_BOOL skip_packet = OPJ_FALSE;
|
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JAS_FPRINTF(stderr,
|
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"packet offset=00000166 prg=%d cmptno=%02d rlvlno=%02d prcno=%03d lyrno=%02d\n\n",
|
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l_current_pi->poc.prg1, l_current_pi->compno, l_current_pi->resno,
|
|
l_current_pi->precno, l_current_pi->layno);
|
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|
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/* 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
|
|
|
|
/* <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;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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 caracteristic
|
|
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->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;
|
|
|
|
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_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 (!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)) {
|
|
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;
|
|
}
|
|
|
|
#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;
|
|
}
|
|
|
|
*(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)) {
|
|
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;
|
|
}
|
|
|
|
#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;
|
|
}
|