1991 lines
87 KiB
C
1991 lines
87 KiB
C
/*
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* Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
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* Copyright (c) 2002-2007, 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 and Antonin Descampe
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* Copyright (c) 2005, Herve Drolon, FreeImage Team
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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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/** @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 t2_putcommacode(opj_bio_t *bio, int n);
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static int 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 t2_putnumpasses(opj_bio_t *bio, int n);
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static int 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 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 len Length of the destination buffer
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@param cstr_info Codestream information structure
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@param tileno Number of the tile encoded
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@return
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*/
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static int t2_encode_packet(opj_tcd_tile_t *tile, opj_tcp_t *tcp, opj_pi_iterator_t *pi, unsigned char *dest, int len, opj_codestream_info_t *cstr_info, int tileno);
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/**
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Encode a packet of a tile to a destination buffer
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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 len Length of the destination buffer
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@param cstr_info Codestream information structure
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@param tileno Number of the tile encoded
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@return
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*/
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static opj_bool t2_encode_packet_v2(
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OPJ_UINT32 tileno,
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opj_tcd_tile_v2_t *tile,
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opj_tcp_v2_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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/**
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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 t2_init_seg(opj_tcd_cblk_dec_t* cblk, int index, int cblksty, int first);
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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 src Source buffer
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@param len Length of the source buffer
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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 pack_info Packet information
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@return
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*/
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static int t2_decode_packet(opj_t2_t* t2, unsigned char *src, int len, opj_tcd_tile_t *tile,
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opj_tcp_t *tcp, opj_pi_iterator_t *pi, opj_packet_info_t *pack_info);
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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 pack_info Packet information
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@return
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*/
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static opj_bool t2_decode_packet_v2(
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opj_t2_v2_t* t2,
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opj_tcd_tile_v2_t *tile,
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opj_tcp_v2_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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static opj_bool t2_skip_packet(
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opj_t2_v2_t* p_t2,
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opj_tcd_tile_v2_t *p_tile,
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opj_tcp_v2_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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static opj_bool t2_read_packet_header(
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opj_t2_v2_t* p_t2,
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opj_tcd_tile_v2_t *p_tile,
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opj_tcp_v2_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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static opj_bool t2_read_packet_data(
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opj_t2_v2_t* p_t2,
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opj_tcd_tile_v2_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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static opj_bool t2_skip_packet_data(
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opj_t2_v2_t* p_t2,
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opj_tcd_tile_v2_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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/**
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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 t2_init_seg_v2( opj_tcd_cblk_dec_v2_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 t2_putcommacode(opj_bio_t *bio, int n) {
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while (--n >= 0) {
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bio_write(bio, 1, 1);
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}
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bio_write(bio, 0, 1);
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}
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static int t2_getcommacode(opj_bio_t *bio) {
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int n;
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for (n = 0; bio_read(bio, 1); n++) {
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;
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}
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return n;
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}
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static void t2_putnumpasses(opj_bio_t *bio, int n) {
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if (n == 1) {
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bio_write(bio, 0, 1);
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} else if (n == 2) {
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bio_write(bio, 2, 2);
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} else if (n <= 5) {
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bio_write(bio, 0xc | (n - 3), 4);
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} else if (n <= 36) {
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bio_write(bio, 0x1e0 | (n - 6), 9);
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} else if (n <= 164) {
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bio_write(bio, 0xff80 | (n - 37), 16);
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}
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}
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static int t2_getnumpasses(opj_bio_t *bio) {
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int n;
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if (!bio_read(bio, 1))
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return 1;
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if (!bio_read(bio, 1))
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return 2;
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if ((n = bio_read(bio, 2)) != 3)
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return (3 + n);
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if ((n = bio_read(bio, 5)) != 31)
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return (6 + n);
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return (37 + bio_read(bio, 7));
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}
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static int t2_encode_packet(opj_tcd_tile_t * tile, opj_tcp_t * tcp, opj_pi_iterator_t *pi, unsigned char *dest, int length, opj_codestream_info_t *cstr_info, int tileno) {
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int bandno, cblkno;
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unsigned char *c = dest;
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int compno = pi->compno; /* component value */
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int resno = pi->resno; /* resolution level value */
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int precno = pi->precno; /* precinct value */
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int layno = pi->layno; /* quality layer value */
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opj_tcd_tilecomp_t *tilec = &tile->comps[compno];
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opj_tcd_resolution_t *res = &tilec->resolutions[resno];
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opj_bio_t *bio = NULL; /* BIO component */
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/* <SOP 0xff91> */
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if (tcp->csty & J2K_CP_CSTY_SOP) {
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c[0] = 255;
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c[1] = 145;
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c[2] = 0;
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c[3] = 4;
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c[4] = (unsigned char)((tile->packno % 65536) / 256);
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c[5] = (unsigned char)((tile->packno % 65536) % 256);
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c += 6;
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}
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/* </SOP> */
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if (!layno) {
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for (bandno = 0; bandno < res->numbands; bandno++) {
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opj_tcd_band_t *band = &res->bands[bandno];
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opj_tcd_precinct_t *prc = &band->precincts[precno];
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tgt_reset(prc->incltree);
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tgt_reset(prc->imsbtree);
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for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
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opj_tcd_cblk_enc_t* cblk = &prc->cblks.enc[cblkno];
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cblk->numpasses = 0;
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tgt_setvalue(prc->imsbtree, cblkno, band->numbps - cblk->numbps);
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}
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}
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}
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bio = bio_create();
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bio_init_enc(bio, c, length);
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bio_write(bio, 1, 1); /* Empty header bit */
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/* Writing Packet header */
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for (bandno = 0; bandno < res->numbands; bandno++) {
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opj_tcd_band_t *band = &res->bands[bandno];
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opj_tcd_precinct_t *prc = &band->precincts[precno];
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for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
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opj_tcd_cblk_enc_t* cblk = &prc->cblks.enc[cblkno];
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opj_tcd_layer_t *layer = &cblk->layers[layno];
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if (!cblk->numpasses && layer->numpasses) {
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tgt_setvalue(prc->incltree, cblkno, layno);
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}
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}
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for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
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opj_tcd_cblk_enc_t* cblk = &prc->cblks.enc[cblkno];
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opj_tcd_layer_t *layer = &cblk->layers[layno];
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int increment = 0;
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int nump = 0;
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int len = 0, passno;
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/* cblk inclusion bits */
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if (!cblk->numpasses) {
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tgt_encode(bio, prc->incltree, cblkno, layno + 1);
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} else {
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bio_write(bio, layer->numpasses != 0, 1);
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}
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/* if cblk not included, go to the next cblk */
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if (!layer->numpasses) {
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continue;
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}
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/* if first instance of cblk --> zero bit-planes information */
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if (!cblk->numpasses) {
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cblk->numlenbits = 3;
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tgt_encode(bio, prc->imsbtree, cblkno, 999);
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}
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/* number of coding passes included */
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t2_putnumpasses(bio, layer->numpasses);
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/* computation of the increase of the length indicator and insertion in the header */
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for (passno = cblk->numpasses; passno < cblk->numpasses + layer->numpasses; passno++) {
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opj_tcd_pass_t *pass = &cblk->passes[passno];
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nump++;
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len += pass->len;
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if (pass->term || passno == (cblk->numpasses + layer->numpasses) - 1) {
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increment = int_max(increment, int_floorlog2(len) + 1 - (cblk->numlenbits + int_floorlog2(nump)));
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len = 0;
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nump = 0;
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}
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}
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t2_putcommacode(bio, increment);
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/* computation of the new Length indicator */
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cblk->numlenbits += increment;
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/* insertion of the codeword segment length */
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for (passno = cblk->numpasses; passno < cblk->numpasses + layer->numpasses; passno++) {
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opj_tcd_pass_t *pass = &cblk->passes[passno];
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nump++;
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len += pass->len;
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if (pass->term || passno == (cblk->numpasses + layer->numpasses) - 1) {
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bio_write(bio, len, cblk->numlenbits + int_floorlog2(nump));
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len = 0;
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nump = 0;
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}
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}
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}
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}
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if (bio_flush(bio)) {
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bio_destroy(bio);
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return -999; /* modified to eliminate longjmp !! */
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}
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c += bio_numbytes(bio);
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bio_destroy(bio);
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/* <EPH 0xff92> */
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if (tcp->csty & J2K_CP_CSTY_EPH) {
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c[0] = 255;
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c[1] = 146;
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c += 2;
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}
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/* </EPH> */
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/* << INDEX */
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/* End of packet header position. Currently only represents the distance to start of packet
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// Will be updated later by incrementing with packet start value */
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if(cstr_info && cstr_info->index_write) {
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opj_packet_info_t *info_PK = &cstr_info->tile[tileno].packet[cstr_info->packno];
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info_PK->end_ph_pos = (int)(c - dest);
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}
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/* INDEX >> */
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/* Writing the packet body */
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for (bandno = 0; bandno < res->numbands; bandno++) {
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opj_tcd_band_t *band = &res->bands[bandno];
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opj_tcd_precinct_t *prc = &band->precincts[precno];
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for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
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opj_tcd_cblk_enc_t* cblk = &prc->cblks.enc[cblkno];
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opj_tcd_layer_t *layer = &cblk->layers[layno];
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if (!layer->numpasses) {
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continue;
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}
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if (c + layer->len > dest + length) {
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return -999;
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}
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memcpy(c, layer->data, layer->len);
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cblk->numpasses += layer->numpasses;
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c += layer->len;
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/* << INDEX */
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if(cstr_info && cstr_info->index_write) {
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opj_packet_info_t *info_PK = &cstr_info->tile[tileno].packet[cstr_info->packno];
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info_PK->disto += layer->disto;
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if (cstr_info->D_max < info_PK->disto) {
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cstr_info->D_max = info_PK->disto;
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}
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}
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/* INDEX >> */
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}
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}
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return (c - dest);
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}
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static opj_bool t2_init_seg(opj_tcd_cblk_dec_t* cblk, int index, int cblksty, int first) {
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opj_tcd_seg_t* seg;
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opj_tcd_seg_t* new_segs = (opj_tcd_seg_t*) opj_realloc(cblk->segs, (index + 1) * sizeof(opj_tcd_seg_t));
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if (!new_segs) {
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/* opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory to init segment #%d\n", index); */
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// TODO: tell cblk has no segment (in order to update the range of valid indices)
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cblk->segs = NULL;
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return OPJ_FALSE;
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}
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cblk->segs = new_segs;
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seg = &cblk->segs[index];
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seg->data = NULL;
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seg->dataindex = 0;
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seg->numpasses = 0;
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seg->len = 0;
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if (cblksty & J2K_CCP_CBLKSTY_TERMALL) {
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seg->maxpasses = 1;
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}
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else if (cblksty & J2K_CCP_CBLKSTY_LAZY) {
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if (first) {
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seg->maxpasses = 10;
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} else {
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seg->maxpasses = (((seg - 1)->maxpasses == 1) || ((seg - 1)->maxpasses == 10)) ? 2 : 1;
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}
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} else {
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seg->maxpasses = 109;
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}
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return OPJ_TRUE;
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}
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static int t2_decode_packet(opj_t2_t* t2, unsigned char *src, int len, opj_tcd_tile_t *tile,
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opj_tcp_t *tcp, opj_pi_iterator_t *pi, opj_packet_info_t *pack_info) {
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int bandno, cblkno;
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unsigned char *c = src;
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opj_cp_t *cp = t2->cp;
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int compno = pi->compno; /* component value */
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int resno = pi->resno; /* resolution level value */
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int precno = pi->precno; /* precinct value */
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int layno = pi->layno; /* quality layer value */
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opj_tcd_resolution_t* res = &tile->comps[compno].resolutions[resno];
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unsigned char *hd = NULL;
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int present;
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opj_bio_t *bio = NULL; /* BIO component */
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if (layno == 0) {
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for (bandno = 0; bandno < res->numbands; bandno++) {
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opj_tcd_band_t *band = &res->bands[bandno];
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opj_tcd_precinct_t *prc = &band->precincts[precno];
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if ((band->x1-band->x0 == 0)||(band->y1-band->y0 == 0)) continue;
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tgt_reset(prc->incltree);
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tgt_reset(prc->imsbtree);
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for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
|
|
opj_tcd_cblk_dec_t* cblk = &prc->cblks.dec[cblkno];
|
|
cblk->numsegs = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* SOP markers */
|
|
|
|
if (tcp->csty & J2K_CP_CSTY_SOP) {
|
|
if ((*c) != 0xff || (*(c + 1) != 0x91)) {
|
|
opj_event_msg(t2->cinfo, EVT_WARNING, "Expected SOP marker\n");
|
|
} else {
|
|
c += 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
|
|
*/
|
|
|
|
bio = bio_create();
|
|
|
|
if (cp->ppm == 1) { /* PPM */
|
|
hd = cp->ppm_data;
|
|
bio_init_dec(bio, hd, cp->ppm_len);
|
|
} else if (tcp->ppt == 1) { /* PPT */
|
|
hd = tcp->ppt_data;
|
|
bio_init_dec(bio, hd, tcp->ppt_len);
|
|
} else { /* Normal Case */
|
|
hd = c;
|
|
bio_init_dec(bio, hd, src+len-hd);
|
|
}
|
|
|
|
present = bio_read(bio, 1);
|
|
|
|
if (!present) {
|
|
bio_inalign(bio);
|
|
hd += bio_numbytes(bio);
|
|
bio_destroy(bio);
|
|
|
|
/* EPH markers */
|
|
|
|
if (tcp->csty & J2K_CP_CSTY_EPH) {
|
|
if ((*hd) != 0xff || (*(hd + 1) != 0x92)) {
|
|
printf("Error : expected EPH marker\n");
|
|
} else {
|
|
hd += 2;
|
|
}
|
|
}
|
|
|
|
/* << 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(pack_info) {
|
|
pack_info->end_ph_pos = (int)(c - src);
|
|
}
|
|
/* INDEX >> */
|
|
|
|
if (cp->ppm == 1) { /* PPM case */
|
|
cp->ppm_len += cp->ppm_data-hd;
|
|
cp->ppm_data = hd;
|
|
return (c - src);
|
|
}
|
|
if (tcp->ppt == 1) { /* PPT case */
|
|
tcp->ppt_len+=tcp->ppt_data-hd;
|
|
tcp->ppt_data = hd;
|
|
return (c - src);
|
|
}
|
|
|
|
return (hd - src);
|
|
}
|
|
|
|
for (bandno = 0; bandno < res->numbands; bandno++) {
|
|
opj_tcd_band_t *band = &res->bands[bandno];
|
|
opj_tcd_precinct_t *prc = &band->precincts[precno];
|
|
|
|
if ((band->x1-band->x0 == 0)||(band->y1-band->y0 == 0)) continue;
|
|
|
|
for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
|
|
int included, increment, n, segno;
|
|
opj_tcd_cblk_dec_t* cblk = &prc->cblks.dec[cblkno];
|
|
/* if cblk not yet included before --> inclusion tagtree */
|
|
if (!cblk->numsegs) {
|
|
included = tgt_decode(bio, prc->incltree, cblkno, layno + 1);
|
|
/* else one bit */
|
|
} else {
|
|
included = bio_read(bio, 1);
|
|
}
|
|
/* if cblk not included */
|
|
if (!included) {
|
|
cblk->numnewpasses = 0;
|
|
continue;
|
|
}
|
|
/* if cblk not yet included --> zero-bitplane tagtree */
|
|
if (!cblk->numsegs) {
|
|
int i, numimsbs;
|
|
for (i = 0; !tgt_decode(bio, prc->imsbtree, cblkno, i); i++) {
|
|
;
|
|
}
|
|
numimsbs = i - 1;
|
|
cblk->numbps = band->numbps - numimsbs;
|
|
cblk->numlenbits = 3;
|
|
}
|
|
/* number of coding passes */
|
|
cblk->numnewpasses = t2_getnumpasses(bio);
|
|
increment = t2_getcommacode(bio);
|
|
/* length indicator increment */
|
|
cblk->numlenbits += increment;
|
|
segno = 0;
|
|
if (!cblk->numsegs) {
|
|
if (OPJ_FALSE == t2_init_seg(cblk, segno, tcp->tccps[compno].cblksty, 1)) {
|
|
// TODO: LH: shall we destroy bio here ?
|
|
opj_event_msg(t2->cinfo, EVT_WARNING, "Not enough memory to init segment #%d\n", segno);
|
|
return -999;
|
|
}
|
|
} else {
|
|
segno = cblk->numsegs - 1;
|
|
if (cblk->segs[segno].numpasses == cblk->segs[segno].maxpasses) {
|
|
++segno;
|
|
if (OPJ_FALSE == t2_init_seg(cblk, segno, tcp->tccps[compno].cblksty, 0)) {
|
|
// TODO: LH: shall we destroy bio here ?
|
|
opj_event_msg(t2->cinfo, EVT_WARNING, "Not enough memory to init segment #%d\n", segno);
|
|
return -999;
|
|
}
|
|
}
|
|
}
|
|
n = cblk->numnewpasses;
|
|
|
|
do {
|
|
cblk->segs[segno].numnewpasses = int_min(cblk->segs[segno].maxpasses - cblk->segs[segno].numpasses, n);
|
|
cblk->segs[segno].newlen = bio_read(bio, cblk->numlenbits + int_floorlog2(cblk->segs[segno].numnewpasses));
|
|
n -= cblk->segs[segno].numnewpasses;
|
|
if (n > 0) {
|
|
++segno;
|
|
if (OPJ_FALSE == t2_init_seg(cblk, segno, tcp->tccps[compno].cblksty, 0)) {
|
|
// TODO: LH: shall we destroy bio here ?
|
|
opj_event_msg(t2->cinfo, EVT_WARNING, "Not enough memory to init segment #%d\n", segno);
|
|
return -999;
|
|
}
|
|
}
|
|
} while (n > 0);
|
|
}
|
|
}
|
|
|
|
if (bio_inalign(bio)) {
|
|
bio_destroy(bio);
|
|
return -999;
|
|
}
|
|
|
|
hd += bio_numbytes(bio);
|
|
bio_destroy(bio);
|
|
|
|
/* EPH markers */
|
|
if (tcp->csty & J2K_CP_CSTY_EPH) {
|
|
if ((*hd) != 0xff || (*(hd + 1) != 0x92)) {
|
|
opj_event_msg(t2->cinfo, EVT_ERROR, "Expected EPH marker\n");
|
|
return -999;
|
|
} else {
|
|
hd += 2;
|
|
}
|
|
}
|
|
|
|
/* << 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(pack_info) {
|
|
pack_info->end_ph_pos = (int)(hd - src);
|
|
}
|
|
/* INDEX >> */
|
|
|
|
if (cp->ppm==1) {
|
|
cp->ppm_len+=cp->ppm_data-hd;
|
|
cp->ppm_data = hd;
|
|
} else if (tcp->ppt == 1) {
|
|
tcp->ppt_len+=tcp->ppt_data-hd;
|
|
tcp->ppt_data = hd;
|
|
} else {
|
|
c=hd;
|
|
}
|
|
|
|
for (bandno = 0; bandno < res->numbands; bandno++) {
|
|
opj_tcd_band_t *band = &res->bands[bandno];
|
|
opj_tcd_precinct_t *prc = &band->precincts[precno];
|
|
|
|
if ((band->x1-band->x0 == 0)||(band->y1-band->y0 == 0)) continue;
|
|
|
|
for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
|
|
opj_tcd_cblk_dec_t* cblk = &prc->cblks.dec[cblkno];
|
|
opj_tcd_seg_t *seg = NULL;
|
|
if (!cblk->numnewpasses)
|
|
continue;
|
|
if (!cblk->numsegs) {
|
|
seg = &cblk->segs[0];
|
|
cblk->numsegs++;
|
|
cblk->len = 0;
|
|
} else {
|
|
seg = &cblk->segs[cblk->numsegs - 1];
|
|
if (seg->numpasses == seg->maxpasses) {
|
|
seg++;
|
|
cblk->numsegs++;
|
|
}
|
|
}
|
|
|
|
do {
|
|
if (c + seg->newlen > src + len) {
|
|
return -999;
|
|
}
|
|
|
|
#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 ((cblk->len + seg->newlen) > 8192) {
|
|
opj_event_msg(t2->cinfo, EVT_WARNING,
|
|
"JPWL: segment too long (%d) for codeblock %d (p=%d, b=%d, r=%d, c=%d)\n",
|
|
seg->newlen, cblkno, precno, bandno, resno, compno);
|
|
if (!JPWL_ASSUME) {
|
|
opj_event_msg(t2->cinfo, EVT_ERROR, "JPWL: giving up\n");
|
|
return -999;
|
|
}
|
|
seg->newlen = 8192 - cblk->len;
|
|
opj_event_msg(t2->cinfo, EVT_WARNING, " - truncating segment to %d\n", seg->newlen);
|
|
break;
|
|
};
|
|
|
|
#endif /* USE_JPWL */
|
|
|
|
unsigned char * new_data = (unsigned char*) opj_realloc(cblk->data, (cblk->len + seg->newlen) * sizeof(unsigned char));
|
|
if (! new_data) {
|
|
opj_event_msg(t2->cinfo, EVT_ERROR, "JPWL: Not enough memory for codeblock data %d (p=%d, b=%d, r=%d, c=%d)\n",
|
|
seg->newlen, cblkno, precno, bandno, resno, compno);
|
|
cblk->data = 0;
|
|
cblk->len = 0; // TODO: LH: other things to reset ?
|
|
opj_free(cblk->data);
|
|
return -999;
|
|
}
|
|
cblk->data = new_data;
|
|
memcpy(cblk->data + cblk->len, c, seg->newlen);
|
|
if (seg->numpasses == 0) {
|
|
seg->data = &cblk->data;
|
|
seg->dataindex = cblk->len;
|
|
}
|
|
c += seg->newlen;
|
|
cblk->len += seg->newlen;
|
|
seg->len += seg->newlen;
|
|
seg->numpasses += seg->numnewpasses;
|
|
cblk->numnewpasses -= seg->numnewpasses;
|
|
if (cblk->numnewpasses > 0) {
|
|
seg++;
|
|
cblk->numsegs++;
|
|
}
|
|
} while (cblk->numnewpasses > 0);
|
|
}
|
|
}
|
|
|
|
return (c - src);
|
|
}
|
|
|
|
/* ----------------------------------------------------------------------- */
|
|
|
|
int t2_encode_packets(opj_t2_t* t2,int tileno, opj_tcd_tile_t *tile, int maxlayers, unsigned char *dest, int len, opj_codestream_info_t *cstr_info,int tpnum, int tppos,int pino, J2K_T2_MODE t2_mode, int cur_totnum_tp){
|
|
unsigned char *c = dest;
|
|
int e = 0;
|
|
int compno;
|
|
opj_pi_iterator_t *pi = NULL;
|
|
int poc;
|
|
opj_image_t *image = t2->image;
|
|
opj_cp_t *cp = t2->cp;
|
|
opj_tcp_t *tcp = &cp->tcps[tileno];
|
|
int pocno = cp->cinema == CINEMA4K_24? 2: 1;
|
|
int maxcomp = cp->max_comp_size > 0 ? image->numcomps : 1;
|
|
|
|
pi = pi_initialise_encode(image, cp, tileno, t2_mode);
|
|
if(!pi) {
|
|
/* TODO: throw an error */
|
|
return -999;
|
|
}
|
|
|
|
if(t2_mode == THRESH_CALC ){ /* Calculating threshold */
|
|
for(compno = 0; compno < maxcomp; compno++ ){
|
|
for(poc = 0; poc < pocno ; poc++){
|
|
int comp_len = 0;
|
|
int tpnum = compno;
|
|
if (pi_create_encode(pi, cp,tileno,poc,tpnum,tppos,t2_mode,cur_totnum_tp)) {
|
|
opj_event_msg(t2->cinfo, EVT_ERROR, "Error initializing Packet Iterator\n");
|
|
pi_destroy(pi, cp, tileno);
|
|
return -999;
|
|
}
|
|
while (pi_next(&pi[poc])) {
|
|
if (pi[poc].layno < maxlayers) {
|
|
e = t2_encode_packet(tile, &cp->tcps[tileno], &pi[poc], c, dest + len - c, cstr_info, tileno);
|
|
comp_len = comp_len + e;
|
|
if (e == -999) {
|
|
break;
|
|
} else {
|
|
c += e;
|
|
}
|
|
}
|
|
}
|
|
if (e == -999) break;
|
|
if (cp->max_comp_size){
|
|
if (comp_len > cp->max_comp_size){
|
|
e = -999;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (e == -999) break;
|
|
}
|
|
}else{ /* t2_mode == FINAL_PASS */
|
|
pi_create_encode(pi, cp,tileno,pino,tpnum,tppos,t2_mode,cur_totnum_tp);
|
|
while (pi_next(&pi[pino])) {
|
|
if (pi[pino].layno < maxlayers) {
|
|
e = t2_encode_packet(tile, &cp->tcps[tileno], &pi[pino], c, dest + len - c, cstr_info, tileno);
|
|
if (e == -999) {
|
|
break;
|
|
} else {
|
|
c += e;
|
|
}
|
|
/* INDEX >> */
|
|
if(cstr_info) {
|
|
if(cstr_info->index_write) {
|
|
opj_tile_info_t *info_TL = &cstr_info->tile[tileno];
|
|
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 = ((cp->tp_on | 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 + e - 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 */
|
|
tile->packno++;
|
|
}
|
|
}
|
|
}
|
|
|
|
pi_destroy(pi, cp, tileno);
|
|
|
|
if (e == -999) {
|
|
return e;
|
|
}
|
|
|
|
return (c - dest);
|
|
}
|
|
|
|
opj_bool t2_encode_packets_v2(
|
|
opj_t2_v2_t* p_t2,
|
|
OPJ_UINT32 p_tile_no,
|
|
opj_tcd_tile_v2_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_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_v2_t *l_cp = p_t2->cp;
|
|
opj_tcp_v2_t *l_tcp = &l_cp->tcps[p_tile_no];
|
|
OPJ_UINT32 pocno = l_cp->m_specific_param.m_enc.m_cinema == CINEMA4K_24? 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 = pi_initialise_encode_v2(l_image, l_cp, p_tile_no, p_t2_mode);
|
|
if (!l_pi) {
|
|
return OPJ_FALSE;
|
|
}
|
|
|
|
* p_data_written = 0;
|
|
|
|
if (p_t2_mode == THRESH_CALC ){ /* Calculating threshold */
|
|
l_current_pi = l_pi;
|
|
|
|
for (compno = 0; compno < l_max_comp; ++compno) {
|
|
OPJ_UINT32 l_comp_len = 0;
|
|
l_current_pi = l_pi;
|
|
|
|
for (poc = 0; poc < pocno ; ++poc) {
|
|
OPJ_UINT32 l_tp_num = compno;
|
|
|
|
pi_create_encode_v2(l_pi, l_cp,p_tile_no,poc,l_tp_num,p_tp_pos,p_t2_mode);
|
|
|
|
while (pi_next(l_current_pi)) {
|
|
if (l_current_pi->layno < p_maxlayers) {
|
|
l_nb_bytes = 0;
|
|
|
|
if (! t2_encode_packet_v2(p_tile_no,p_tile, l_tcp, l_current_pi, l_current_data, &l_nb_bytes, p_max_len, cstr_info)) {
|
|
pi_destroy_v2(l_pi, l_nb_pocs);
|
|
return OPJ_FALSE;
|
|
}
|
|
|
|
l_comp_len += l_nb_bytes;
|
|
l_current_data += l_nb_bytes;
|
|
p_max_len -= l_nb_bytes;
|
|
|
|
* p_data_written += l_nb_bytes;
|
|
}
|
|
}
|
|
|
|
if (l_cp->m_specific_param.m_enc.m_max_comp_size) {
|
|
if (l_comp_len > l_cp->m_specific_param.m_enc.m_max_comp_size) {
|
|
pi_destroy_v2(l_pi, l_nb_pocs);
|
|
return OPJ_FALSE;
|
|
}
|
|
}
|
|
|
|
++l_current_pi;
|
|
}
|
|
}
|
|
}
|
|
else { /* t2_mode == FINAL_PASS */
|
|
pi_create_encode_v2(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 (pi_next(l_current_pi)) {
|
|
if (l_current_pi->layno < p_maxlayers) {
|
|
l_nb_bytes=0;
|
|
|
|
if (! t2_encode_packet_v2(p_tile_no,p_tile, l_tcp, l_current_pi, l_current_data, &l_nb_bytes, p_max_len, cstr_info)) {
|
|
pi_destroy_v2(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
|
|
}
|
|
|
|
cstr_info->packno++;
|
|
}
|
|
/* << INDEX */
|
|
++p_tile->packno;
|
|
}
|
|
}
|
|
}
|
|
|
|
pi_destroy_v2(l_pi, l_nb_pocs);
|
|
|
|
return OPJ_TRUE;
|
|
}
|
|
|
|
|
|
int t2_decode_packets(opj_t2_t *t2, unsigned char *src, int len, int tileno, opj_tcd_tile_t *tile, opj_codestream_info_t *cstr_info) {
|
|
unsigned char *c = src;
|
|
opj_pi_iterator_t *pi;
|
|
int pino, e = 0;
|
|
int n = 0, curtp = 0;
|
|
int tp_start_packno;
|
|
|
|
opj_image_t *image = t2->image;
|
|
opj_cp_t *cp = t2->cp;
|
|
|
|
/* create a packet iterator */
|
|
pi = pi_create_decode(image, cp, tileno);
|
|
if(!pi) {
|
|
/* TODO: throw an error */
|
|
return -999;
|
|
}
|
|
|
|
tp_start_packno = 0;
|
|
|
|
for (pino = 0; pino <= cp->tcps[tileno].numpocs; pino++) {
|
|
while (pi_next(&pi[pino])) {
|
|
if ((cp->layer==0) || (cp->layer>=((pi[pino].layno)+1))) {
|
|
opj_packet_info_t *pack_info;
|
|
if (cstr_info)
|
|
pack_info = &cstr_info->tile[tileno].packet[cstr_info->packno];
|
|
else
|
|
pack_info = NULL;
|
|
e = t2_decode_packet(t2, c, src + len - c, tile, &cp->tcps[tileno], &pi[pino], pack_info);
|
|
} else {
|
|
e = 0;
|
|
}
|
|
if(e == -999) return -999;
|
|
/* progression in resolution */
|
|
image->comps[pi[pino].compno].resno_decoded =
|
|
(e > 0) ?
|
|
int_max(pi[pino].resno, image->comps[pi[pino].compno].resno_decoded)
|
|
: image->comps[pi[pino].compno].resno_decoded;
|
|
n++;
|
|
|
|
/* INDEX >> */
|
|
if(cstr_info) {
|
|
opj_tile_info_t *info_TL = &cstr_info->tile[tileno];
|
|
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 if (info_TL->packet[cstr_info->packno-1].end_pos >= (int)cstr_info->tile[tileno].tp[curtp].tp_end_pos){ /* New tile part*/
|
|
info_TL->tp[curtp].tp_numpacks = cstr_info->packno - tp_start_packno; /* Number of packets in previous tile-part*/
|
|
info_TL->tp[curtp].tp_start_pack = tp_start_packno;
|
|
tp_start_packno = cstr_info->packno;
|
|
curtp++;
|
|
info_PK->start_pos = cstr_info->tile[tileno].tp[curtp].tp_end_header+1;
|
|
} else {
|
|
info_PK->start_pos = (cp->tp_on && 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 + e - 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 */
|
|
|
|
if (e == -999) { /* ADD */
|
|
break;
|
|
} else {
|
|
c += e;
|
|
}
|
|
}
|
|
}
|
|
/* INDEX >> */
|
|
if(cstr_info) {
|
|
cstr_info->tile[tileno].tp[curtp].tp_numpacks = cstr_info->packno - tp_start_packno; /* Number of packets in last tile-part*/
|
|
cstr_info->tile[tileno].tp[curtp].tp_start_pack = tp_start_packno;
|
|
}
|
|
/* << INDEX */
|
|
|
|
/* don't forget to release pi */
|
|
pi_destroy(pi, cp, tileno);
|
|
|
|
if (e == -999) {
|
|
return e;
|
|
}
|
|
|
|
return (c - src);
|
|
}
|
|
|
|
opj_bool t2_decode_packets_v2(
|
|
opj_t2_v2_t *p_t2,
|
|
OPJ_UINT32 p_tile_no,
|
|
struct opj_tcd_tile_v2 *p_tile,
|
|
OPJ_BYTE *p_src,
|
|
OPJ_UINT32 * p_data_read,
|
|
OPJ_UINT32 p_max_len,
|
|
opj_codestream_index_t *p_cstr_index)
|
|
{
|
|
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_v2_t *l_cp = p_t2->cp;
|
|
opj_cp_v2_t *cp = p_t2->cp;
|
|
opj_tcp_v2_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_UINT32 curtp = 0;
|
|
OPJ_UINT32 tp_start_packno;
|
|
opj_packet_info_t *l_pack_info = 00;
|
|
opj_image_comp_t* l_img_comp = 00;
|
|
|
|
#ifdef TODO_MSD
|
|
if (p_cstr_index) {
|
|
l_pack_info = p_cstr_index->tile_index[p_tile_no].packet;
|
|
}
|
|
#endif
|
|
|
|
/* create a packet iterator */
|
|
l_pi = pi_create_decode_v2(l_image, l_cp, p_tile_no);
|
|
if (!l_pi) {
|
|
return OPJ_FALSE;
|
|
}
|
|
|
|
tp_start_packno = 0;
|
|
l_current_pi = l_pi;
|
|
|
|
for (pino = 0; pino <= l_tcp->numpocs; ++pino) {
|
|
|
|
/* if the resolution needed is to low, one dim of the tilec could be equal to zero
|
|
* and no packets are used to encode 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));
|
|
memset(first_pass_failed, OPJ_TRUE, l_image->numcomps * sizeof(opj_bool));
|
|
|
|
while (pi_next(l_current_pi)) {
|
|
|
|
|
|
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;
|
|
|
|
first_pass_failed[l_current_pi->compno] = OPJ_FALSE;
|
|
|
|
if (! t2_decode_packet_v2(p_t2,p_tile,l_tcp,l_current_pi,l_current_data,&l_nb_bytes_read,p_max_len,l_pack_info)) {
|
|
pi_destroy_v2(l_pi,l_nb_pocs);
|
|
return OPJ_FALSE;
|
|
}
|
|
|
|
l_img_comp = &(l_image->comps[l_current_pi->compno]);
|
|
l_img_comp->resno_decoded = uint_max(l_current_pi->resno, l_img_comp->resno_decoded);
|
|
}
|
|
else {
|
|
l_nb_bytes_read = 0;
|
|
if (! 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)) {
|
|
pi_destroy_v2(l_pi,l_nb_pocs);
|
|
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];
|
|
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 = (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 */
|
|
pi_destroy_v2(l_pi,l_nb_pocs);
|
|
*p_data_read = l_current_data - p_src;
|
|
return OPJ_TRUE;
|
|
}
|
|
|
|
/* ----------------------------------------------------------------------- */
|
|
|
|
opj_t2_t* t2_create(opj_common_ptr cinfo, opj_image_t *image, opj_cp_t *cp) {
|
|
/* create the tcd structure */
|
|
opj_t2_t *t2 = (opj_t2_t*)opj_malloc(sizeof(opj_t2_t));
|
|
if(!t2) return NULL;
|
|
t2->cinfo = cinfo;
|
|
t2->image = image;
|
|
t2->cp = cp;
|
|
|
|
return t2;
|
|
}
|
|
|
|
/**
|
|
* 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_v2_t* t2_create_v2( opj_image_t *p_image,
|
|
opj_cp_v2_t *p_cp)
|
|
{
|
|
/* create the tcd structure */
|
|
opj_t2_v2_t *l_t2 = (opj_t2_v2_t*)opj_malloc(sizeof(opj_t2_v2_t));
|
|
if (!l_t2) {
|
|
return NULL;
|
|
}
|
|
memset(l_t2,0,sizeof(opj_t2_v2_t));
|
|
|
|
l_t2->image = p_image;
|
|
l_t2->cp = p_cp;
|
|
|
|
return l_t2;
|
|
}
|
|
|
|
void t2_destroy(opj_t2_t *t2) {
|
|
if(t2) {
|
|
opj_free(t2);
|
|
}
|
|
}
|
|
|
|
void t2_destroy_v2(opj_t2_v2_t *t2) {
|
|
if(t2) {
|
|
opj_free(t2);
|
|
}
|
|
}
|
|
|
|
|
|
static opj_bool t2_decode_packet_v2(
|
|
opj_t2_v2_t* p_t2,
|
|
opj_tcd_tile_v2_t *p_tile,
|
|
opj_tcp_v2_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;
|
|
|
|
*p_data_read = 0;
|
|
|
|
if (! 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;
|
|
}
|
|
|
|
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 (! 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;
|
|
}
|
|
|
|
*p_data_read = l_nb_total_bytes_read;
|
|
|
|
return OPJ_TRUE;
|
|
}
|
|
|
|
static opj_bool t2_encode_packet_v2(
|
|
OPJ_UINT32 tileno,
|
|
opj_tcd_tile_v2_t * tile,
|
|
opj_tcp_v2_t * tcp,
|
|
opj_pi_iterator_t *pi,
|
|
OPJ_BYTE *dest,
|
|
OPJ_UINT32 * p_data_written,
|
|
OPJ_UINT32 length,
|
|
opj_codestream_info_t *cstr_info)
|
|
{
|
|
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_v2_t *band = 00;
|
|
opj_tcd_cblk_enc_v2_t* cblk = 00;
|
|
opj_tcd_pass_v2_t *pass = 00;
|
|
|
|
opj_tcd_tilecomp_v2_t *tilec = &tile->comps[compno];
|
|
opj_tcd_resolution_v2_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;
|
|
c[4] = (tile->packno % 65536) / 256;
|
|
c[5] = (tile->packno % 65536) % 256;
|
|
c += 6;
|
|
length -= 6;
|
|
}
|
|
/* </SOP> */
|
|
|
|
if (!layno) {
|
|
band = res->bands;
|
|
|
|
for(bandno = 0; bandno < res->numbands; ++bandno) {
|
|
opj_tcd_precinct_v2_t *prc = &band->precincts[precno];
|
|
|
|
tgt_reset(prc->incltree);
|
|
tgt_reset(prc->imsbtree);
|
|
|
|
l_nb_blocks = prc->cw * prc->ch;
|
|
for (cblkno = 0; cblkno < l_nb_blocks; ++cblkno) {
|
|
opj_tcd_cblk_enc_v2_t* cblk = &prc->cblks.enc[cblkno];
|
|
|
|
cblk->numpasses = 0;
|
|
tgt_setvalue(prc->imsbtree, cblkno, band->numbps - cblk->numbps);
|
|
}
|
|
++band;
|
|
}
|
|
}
|
|
|
|
bio = bio_create();
|
|
bio_init_enc(bio, c, length);
|
|
bio_write(bio, 1, 1); /* Empty header bit */
|
|
|
|
/* Writing Packet header */
|
|
band = res->bands;
|
|
for (bandno = 0; bandno < res->numbands; ++bandno) {
|
|
opj_tcd_precinct_v2_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) {
|
|
tgt_setvalue(prc->incltree, cblkno, 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) {
|
|
tgt_encode(bio, prc->incltree, cblkno, layno + 1);
|
|
} else {
|
|
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;
|
|
tgt_encode(bio, prc->imsbtree, cblkno, 999);
|
|
}
|
|
|
|
/* number of coding passes included */
|
|
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 = int_max(increment, int_floorlog2(len) + 1 - (cblk->numlenbits + int_floorlog2(nump)));
|
|
len = 0;
|
|
nump = 0;
|
|
}
|
|
|
|
++pass;
|
|
}
|
|
t2_putcommacode(bio, 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) {
|
|
bio_write(bio, len, cblk->numlenbits + int_floorlog2(nump));
|
|
len = 0;
|
|
nump = 0;
|
|
}
|
|
++pass;
|
|
}
|
|
|
|
++cblk;
|
|
}
|
|
|
|
++band;
|
|
}
|
|
|
|
if (bio_flush(bio)) {
|
|
bio_destroy(bio);
|
|
return OPJ_FALSE; /* modified to eliminate longjmp !! */
|
|
}
|
|
|
|
l_nb_bytes = bio_numbytes(bio);
|
|
c += l_nb_bytes;
|
|
length -= l_nb_bytes;
|
|
|
|
bio_destroy(bio);
|
|
|
|
/* <EPH 0xff92> */
|
|
if (tcp->csty & J2K_CP_CSTY_EPH) {
|
|
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; bandno < res->numbands; bandno++) {
|
|
opj_tcd_precinct_v2_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 (!layer->numpasses) {
|
|
++cblk;
|
|
continue;
|
|
}
|
|
|
|
if (layer->len > length) {
|
|
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 >> */
|
|
}
|
|
++band;
|
|
}
|
|
|
|
* p_data_written += (c - dest);
|
|
|
|
return OPJ_TRUE;
|
|
}
|
|
|
|
static opj_bool t2_skip_packet(
|
|
opj_t2_v2_t* p_t2,
|
|
opj_tcd_tile_v2_t *p_tile,
|
|
opj_tcp_v2_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;
|
|
|
|
*p_data_read = 0;
|
|
|
|
if (! 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;
|
|
}
|
|
|
|
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 (! t2_skip_packet_data(p_t2,p_tile,p_pi,&l_nb_bytes_read,p_max_length,p_pack_info)) {
|
|
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 t2_read_packet_header(
|
|
opj_t2_v2_t* p_t2,
|
|
opj_tcd_tile_v2_t *p_tile,
|
|
opj_tcp_v2_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)
|
|
{
|
|
/* 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_v2_t *l_cp = p_t2->cp;
|
|
opj_bio_t *l_bio = 00; /* BIO component */
|
|
opj_tcd_band_v2_t *l_band = 00;
|
|
opj_tcd_cblk_dec_v2_t* l_cblk = 00;
|
|
opj_tcd_resolution_v2_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_v2_t *l_prc = &l_band->precincts[p_pi->precno];
|
|
|
|
if ( ! ((l_band->x1-l_band->x0 == 0)||(l_band->y1-l_band->y0 == 0)) ) {
|
|
tgt_reset(l_prc->incltree);
|
|
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 ((*l_current_data) != 0xff || (*(l_current_data + 1) != 0x91)) {
|
|
/* TODO opj_event_msg(t2->cinfo->event_mgr, 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 = 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 = p_src_data+p_max_length-l_header_data;
|
|
l_modified_length_ptr = &(l_remaining_length);
|
|
}
|
|
|
|
bio_init_dec(l_bio, l_header_data,*l_modified_length_ptr);
|
|
|
|
l_present = bio_read(l_bio, 1);
|
|
if (!l_present) {
|
|
bio_inalign(l_bio);
|
|
l_header_data += bio_numbytes(l_bio);
|
|
bio_destroy(l_bio);
|
|
|
|
/* EPH markers */
|
|
if (p_tcp->csty & J2K_CP_CSTY_EPH) {
|
|
if ((*l_header_data) != 0xff || (*(l_header_data + 1) != 0x92)) {
|
|
printf("Error : expected EPH marker\n");
|
|
} else {
|
|
l_header_data += 2;
|
|
}
|
|
}
|
|
|
|
l_header_length = (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 = l_current_data - p_src_data;
|
|
return OPJ_TRUE;
|
|
}
|
|
|
|
l_band = l_res->bands;
|
|
for (bandno = 0; bandno < l_res->numbands; ++bandno) {
|
|
opj_tcd_precinct_v2_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_UINT32 l_included,l_increment, l_segno;
|
|
OPJ_INT32 n;
|
|
|
|
/* if cblk not yet included before --> inclusion tagtree */
|
|
if (!l_cblk->numsegs) {
|
|
l_included = tgt_decode(l_bio, l_prc->incltree, cblkno, p_pi->layno + 1);
|
|
/* else one bit */
|
|
}
|
|
else {
|
|
l_included = bio_read(l_bio, 1);
|
|
}
|
|
|
|
/* if cblk not included */
|
|
if (!l_included) {
|
|
l_cblk->numnewpasses = 0;
|
|
++l_cblk;
|
|
continue;
|
|
}
|
|
|
|
/* if cblk not yet included --> zero-bitplane tagtree */
|
|
if (!l_cblk->numsegs) {
|
|
OPJ_UINT32 i = 0;
|
|
|
|
while (!tgt_decode(l_bio, l_prc->imsbtree, cblkno, i)) {
|
|
++i;
|
|
}
|
|
|
|
l_cblk->numbps = l_band->numbps + 1 - i;
|
|
l_cblk->numlenbits = 3;
|
|
}
|
|
|
|
/* number of coding passes */
|
|
l_cblk->numnewpasses = t2_getnumpasses(l_bio);
|
|
l_increment = t2_getcommacode(l_bio);
|
|
|
|
/* length indicator increment */
|
|
l_cblk->numlenbits += l_increment;
|
|
l_segno = 0;
|
|
|
|
if (!l_cblk->numsegs) {
|
|
if (! t2_init_seg_v2(l_cblk, l_segno, p_tcp->tccps[p_pi->compno].cblksty, 1)) {
|
|
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 (! t2_init_seg_v2(l_cblk, l_segno, p_tcp->tccps[p_pi->compno].cblksty, 0)) {
|
|
bio_destroy(l_bio);
|
|
return OPJ_FALSE;
|
|
}
|
|
}
|
|
}
|
|
n = l_cblk->numnewpasses;
|
|
|
|
do {
|
|
l_cblk->segs[l_segno].numnewpasses = int_min(l_cblk->segs[l_segno].maxpasses - l_cblk->segs[l_segno].numpasses, n);
|
|
l_cblk->segs[l_segno].newlen = bio_read(l_bio, l_cblk->numlenbits + uint_floorlog2(l_cblk->segs[l_segno].numnewpasses));
|
|
|
|
n -= l_cblk->segs[l_segno].numnewpasses;
|
|
if (n > 0) {
|
|
++l_segno;
|
|
|
|
if (! t2_init_seg_v2(l_cblk, l_segno, p_tcp->tccps[p_pi->compno].cblksty, 0)) {
|
|
bio_destroy(l_bio);
|
|
return OPJ_FALSE;
|
|
}
|
|
}
|
|
} while (n > 0);
|
|
|
|
++l_cblk;
|
|
}
|
|
|
|
++l_band;
|
|
}
|
|
|
|
if (bio_inalign(l_bio)) {
|
|
bio_destroy(l_bio);
|
|
return OPJ_FALSE;
|
|
}
|
|
|
|
l_header_data += bio_numbytes(l_bio);
|
|
bio_destroy(l_bio);
|
|
|
|
/* EPH markers */
|
|
if (p_tcp->csty & J2K_CP_CSTY_EPH) {
|
|
if ((*l_header_data) != 0xff || (*(l_header_data + 1) != 0x92)) {
|
|
/* TODO opj_event_msg(t2->cinfo->event_mgr, EVT_ERROR, "Expected EPH marker\n"); */
|
|
} else {
|
|
l_header_data += 2;
|
|
}
|
|
}
|
|
|
|
l_header_length = (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_TRUE;
|
|
*p_data_read = l_current_data - p_src_data;
|
|
|
|
return OPJ_TRUE;
|
|
}
|
|
|
|
static opj_bool t2_read_packet_data(
|
|
opj_t2_v2_t* p_t2,
|
|
opj_tcd_tile_v2_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_v2_t *l_band = 00;
|
|
opj_tcd_cblk_dec_v2_t* l_cblk = 00;
|
|
opj_tcd_resolution_v2_t* l_res = &p_tile->comps[p_pi->compno].resolutions[p_pi->resno];
|
|
|
|
l_band = l_res->bands;
|
|
for (bandno = 0; bandno < l_res->numbands; ++bandno) {
|
|
opj_tcd_precinct_v2_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;
|
|
l_cblk->len = 0;
|
|
}
|
|
else {
|
|
l_seg = &l_cblk->segs[l_cblk->numsegs - 1];
|
|
|
|
if (l_seg->numpasses == l_seg->maxpasses) {
|
|
++l_seg;
|
|
++l_cblk->numsegs;
|
|
}
|
|
}
|
|
|
|
do {
|
|
if (l_current_data + l_seg->newlen > p_src_data + p_max_length) {
|
|
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_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;
|
|
};
|
|
|
|
#endif /* USE_JPWL */
|
|
|
|
memcpy(l_cblk->data + l_cblk->len, l_current_data, l_seg->newlen);
|
|
|
|
if (l_seg->numpasses == 0) {
|
|
l_seg->data = &l_cblk->data;
|
|
l_seg->dataindex = l_cblk->len;
|
|
}
|
|
|
|
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->len += 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;
|
|
}
|
|
|
|
++l_band;
|
|
}
|
|
|
|
*(p_data_read) = l_current_data - p_src_data;
|
|
|
|
return OPJ_TRUE;
|
|
}
|
|
|
|
static opj_bool t2_skip_packet_data(
|
|
opj_t2_v2_t* p_t2,
|
|
opj_tcd_tile_v2_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_UINT32 bandno, cblkno;
|
|
OPJ_UINT32 l_nb_code_blocks;
|
|
opj_tcd_band_v2_t *l_band = 00;
|
|
opj_tcd_cblk_dec_v2_t* l_cblk = 00;
|
|
opj_tcd_resolution_v2_t* l_res = &p_tile->comps[p_pi->compno].resolutions[p_pi->resno];
|
|
|
|
*p_data_read = 0;
|
|
l_band = l_res->bands;
|
|
|
|
for (bandno = 0; bandno < l_res->numbands; ++bandno) {
|
|
opj_tcd_precinct_v2_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;
|
|
l_cblk->len = 0;
|
|
}
|
|
else {
|
|
l_seg = &l_cblk->segs[l_cblk->numsegs - 1];
|
|
|
|
if (l_seg->numpasses == l_seg->maxpasses) {
|
|
++l_seg;
|
|
++l_cblk->numsegs;
|
|
}
|
|
}
|
|
|
|
do {
|
|
if (* p_data_read + l_seg->newlen > p_max_length) {
|
|
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_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;
|
|
};
|
|
|
|
#endif /* USE_JPWL */
|
|
*(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 t2_init_seg_v2(opj_tcd_cblk_dec_v2_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) {
|
|
cblk->m_current_max_segs += J2K_DEFAULT_NB_SEGS;
|
|
|
|
opj_tcd_seg_t* 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_v2(p_manager, EVT_ERROR, "Not enough memory to initialize segment %d\n", l_nb_segs); */
|
|
return OPJ_FALSE;
|
|
}
|
|
cblk->segs = new_segs;
|
|
}
|
|
|
|
seg = &cblk->segs[index];
|
|
memset(seg,0,sizeof(opj_tcd_seg_t));
|
|
|
|
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 {
|
|
seg->maxpasses = 109;
|
|
}
|
|
|
|
return OPJ_TRUE;
|
|
}
|