476 lines
15 KiB
C
476 lines
15 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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#ifndef __TCD_H
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#define __TCD_H
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/**
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@file tcd.h
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@brief Implementation of a tile coder/decoder (TCD)
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The functions in TCD.C encode or decode each tile independently from
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each other. The functions in TCD.C are used by other functions in J2K.C.
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*/
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/** @defgroup TCD TCD - Implementation of a tile coder/decoder */
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/*@{*/
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/**
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FIXME: documentation
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*/
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/*typedef struct opj_tcd_seg { */
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/* unsigned char** data; */
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/* int dataindex; */
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/* int numpasses; */
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/* int len; */
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/* int maxpasses; */
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/* int numnewpasses; */
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/* int newlen; */
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/*} opj_tcd_seg_t; */
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/**
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FIXME: documentation
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*/
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typedef struct opj_tcd_seg {
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OPJ_BYTE ** data;
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OPJ_UINT32 dataindex;
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OPJ_UINT32 numpasses;
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OPJ_UINT32 real_num_passes;
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OPJ_UINT32 len;
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OPJ_UINT32 maxpasses;
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OPJ_UINT32 numnewpasses;
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OPJ_UINT32 newlen;
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} opj_tcd_seg_t;
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/**
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FIXME: documentation
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*/
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typedef struct opj_tcd_pass {
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int rate;
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double distortiondec;
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int term, len;
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} opj_tcd_pass_t;
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typedef struct opj_tcd_pass_v2 {
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OPJ_UINT32 rate;
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OPJ_FLOAT64 distortiondec;
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OPJ_UINT32 len;
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OPJ_UINT32 term : 1;
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} opj_tcd_pass_v2_t;
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/**
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FIXME: documentation
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*/
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typedef struct opj_tcd_layer {
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OPJ_UINT32 numpasses; /* Number of passes in the layer */
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OPJ_UINT32 len; /* len of information */
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OPJ_FLOAT64 disto; /* add for index (Cfr. Marcela) */
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OPJ_BYTE *data; /* data */
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} opj_tcd_layer_t;
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/**
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FIXME: documentation
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*/
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typedef struct opj_tcd_cblk_enc {
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unsigned char* data; /* Data */
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opj_tcd_layer_t* layers; /* layer information */
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opj_tcd_pass_t* passes; /* information about the passes */
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int x0, y0, x1, y1; /* dimension of the code-blocks : left upper corner (x0, y0) right low corner (x1,y1) */
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int numbps;
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int numlenbits;
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int numpasses; /* number of pass already done for the code-blocks */
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int numpassesinlayers; /* number of passes in the layer */
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int totalpasses; /* total number of passes */
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} opj_tcd_cblk_enc_t;
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/**
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FIXME: documentation
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*/
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typedef struct opj_tcd_cblk_enc_v2 {
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OPJ_BYTE* data; /* Data */
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opj_tcd_layer_t* layers; /* layer information */
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opj_tcd_pass_v2_t* passes; /* information about the passes */
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OPJ_INT32 x0, y0, x1, y1; /* dimension of the code-blocks : left upper corner (x0, y0) right low corner (x1,y1) */
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OPJ_UINT32 numbps;
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OPJ_UINT32 numlenbits;
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OPJ_UINT32 numpasses; /* number of pass already done for the code-blocks */
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OPJ_UINT32 numpassesinlayers; /* number of passes in the layer */
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OPJ_UINT32 totalpasses; /* total number of passes */
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} opj_tcd_cblk_enc_v2_t;
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typedef struct opj_tcd_cblk_dec {
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unsigned char* data; /* Data */
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opj_tcd_seg_t* segs; /* segments information */
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int x0, y0, x1, y1; /* dimension of the code-blocks : left upper corner (x0, y0) right low corner (x1,y1) */
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int numbps;
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int numlenbits;
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int len; /* length */
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int numnewpasses; /* number of pass added to the code-blocks */
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int numsegs; /* number of segments */
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} opj_tcd_cblk_dec_t;
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typedef struct opj_tcd_cblk_dec_v2 {
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OPJ_BYTE * data; /* Data */
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opj_tcd_seg_t* segs; /* segments information */
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OPJ_INT32 x0, y0, x1, y1; /* dimension of the code-blocks : left upper corner (x0, y0) right low corner (x1,y1) */
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OPJ_UINT32 numbps;
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OPJ_UINT32 numlenbits;
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OPJ_UINT32 len; /* length */
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OPJ_UINT32 numnewpasses; /* number of pass added to the code-blocks */
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OPJ_UINT32 numsegs; /* number of segments */
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OPJ_UINT32 real_num_segs;
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OPJ_UINT32 m_current_max_segs;
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} opj_tcd_cblk_dec_v2_t;
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/**
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FIXME: documentation
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*/
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typedef struct opj_tcd_precinct {
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int x0, y0, x1, y1; /* dimension of the precinct : left upper corner (x0, y0) right low corner (x1,y1) */
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int cw, ch; /* number of precinct in width and height */
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union{ /* code-blocks information */
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opj_tcd_cblk_enc_t* enc;
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opj_tcd_cblk_dec_t* dec;
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} cblks;
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opj_tgt_tree_t *incltree; /* inclusion tree */
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opj_tgt_tree_t *imsbtree; /* IMSB tree */
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} opj_tcd_precinct_t;
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typedef struct opj_tcd_precinct_v2 {
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OPJ_INT32 x0, y0, x1, y1; /* dimension of the precinct : left upper corner (x0, y0) right low corner (x1,y1) */
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OPJ_UINT32 cw, ch; /* number of precinct in width and height */
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union{ /* code-blocks information */
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opj_tcd_cblk_enc_v2_t* enc;
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opj_tcd_cblk_dec_v2_t* dec;
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} cblks;
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OPJ_UINT32 block_size; /* size taken by cblks (in bytes) */
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opj_tgt_tree_t *incltree; /* inclusion tree */
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opj_tgt_tree_t *imsbtree; /* IMSB tree */
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} opj_tcd_precinct_v2_t;
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/**
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FIXME: documentation
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*/
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typedef struct opj_tcd_band {
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int x0, y0, x1, y1; /* dimension of the subband : left upper corner (x0, y0) right low corner (x1,y1) */
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int bandno;
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opj_tcd_precinct_t *precincts; /* precinct information */
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int numbps;
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float stepsize;
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} opj_tcd_band_t;
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typedef struct opj_tcd_band_v2 {
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OPJ_INT32 x0, y0, x1, y1; /* dimension of the subband : left upper corner (x0, y0) right low corner (x1,y1) */
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OPJ_UINT32 bandno;
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opj_tcd_precinct_v2_t *precincts; /* precinct information */
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OPJ_UINT32 precincts_data_size; /* size of data taken by precincts */
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OPJ_INT32 numbps;
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OPJ_FLOAT32 stepsize;
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} opj_tcd_band_v2_t;
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/**
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FIXME: documentation
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*/
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typedef struct opj_tcd_resolution {
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int x0, y0, x1, y1; /* dimension of the resolution level : left upper corner (x0, y0) right low corner (x1,y1) */
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int pw, ph;
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int numbands; /* number sub-band for the resolution level */
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opj_tcd_band_t bands[3]; /* subband information */
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} opj_tcd_resolution_t;
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typedef struct opj_tcd_resolution_v2 {
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OPJ_INT32 x0, y0, x1, y1; /* dimension of the resolution level : left upper corner (x0, y0) right low corner (x1,y1) */
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OPJ_UINT32 pw, ph;
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OPJ_UINT32 numbands; /* number sub-band for the resolution level */
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opj_tcd_band_v2_t bands[3]; /* subband information */
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} opj_tcd_resolution_v2_t;
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/**
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FIXME: documentation
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*/
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typedef struct opj_tcd_tilecomp {
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int x0, y0, x1, y1; /* dimension of component : left upper corner (x0, y0) right low corner (x1,y1) */
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int numresolutions; /* number of resolutions level */
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opj_tcd_resolution_t *resolutions; /* resolutions information */
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int *data; /* data of the component */
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int numpix; /* add fixed_quality */
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} opj_tcd_tilecomp_t;
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typedef struct opj_tcd_tilecomp_v2
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{
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OPJ_INT32 x0, y0, x1, y1; /* dimension of component : left upper corner (x0, y0) right low corner (x1,y1) */
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OPJ_UINT32 numresolutions; /* number of resolutions level */
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OPJ_UINT32 minimum_num_resolutions; /* number of resolutions level to decode (at max)*/
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opj_tcd_resolution_v2_t *resolutions; /* resolutions information */
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OPJ_UINT32 resolutions_size; /* size of data for resolutions (in bytes) */
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OPJ_INT32 *data; /* data of the component */
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OPJ_UINT32 data_size; /* size of the data of the component */
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OPJ_INT32 numpix; /* add fixed_quality */
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} opj_tcd_tilecomp_v2_t;
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/**
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FIXME: documentation
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*/
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typedef struct opj_tcd_tile {
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int x0, y0, x1, y1; /* dimension of the tile : left upper corner (x0, y0) right low corner (x1,y1) */
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int numcomps; /* number of components in tile */
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opj_tcd_tilecomp_t *comps; /* Components information */
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int numpix; /* add fixed_quality */
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double distotile; /* add fixed_quality */
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double distolayer[100]; /* add fixed_quality */
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/** packet number */
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int packno;
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} opj_tcd_tile_t;
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typedef struct opj_tcd_tile_v2 {
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OPJ_INT32 x0, y0, x1, y1; /* dimension of the tile : left upper corner (x0, y0) right low corner (x1,y1) */
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OPJ_UINT32 numcomps; /* number of components in tile */
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opj_tcd_tilecomp_v2_t *comps; /* Components information */
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OPJ_INT32 numpix; /* add fixed_quality */
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OPJ_FLOAT64 distotile; /* add fixed_quality */
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OPJ_FLOAT64 distolayer[100]; /* add fixed_quality */
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/** packet number */
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OPJ_UINT32 packno;
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} opj_tcd_tile_v2_t;
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/**
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FIXME: documentation
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*/
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typedef struct opj_tcd_image {
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int tw, th; /* number of tiles in width and height */
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opj_tcd_tile_t *tiles; /* Tiles information */
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} opj_tcd_image_t;
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typedef struct opj_tcd_image_v2
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{
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opj_tcd_tile_v2_t *tiles; /* Tiles information */
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}
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opj_tcd_image_v2_t;
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/**
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Tile coder/decoder
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*/
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typedef struct opj_tcd {
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/** Position of the tilepart flag in Progression order*/
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int tp_pos;
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/** Tile part number*/
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int tp_num;
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/** Current tile part number*/
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int cur_tp_num;
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/** Total number of tileparts of the current tile*/
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int cur_totnum_tp;
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/** Current Packet iterator number */
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int cur_pino;
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/** codec context */
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opj_common_ptr cinfo;
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/** info on each image tile */
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opj_tcd_image_t *tcd_image;
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/** image */
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opj_image_t *image;
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/** coding parameters */
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opj_cp_t *cp;
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/** pointer to the current encoded/decoded tile */
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opj_tcd_tile_t *tcd_tile;
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/** coding/decoding parameters common to all tiles */
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opj_tcp_t *tcp;
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/** current encoded/decoded tile */
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int tcd_tileno;
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/** Time taken to encode a tile*/
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double encoding_time;
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} opj_tcd_t;
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/**
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Tile coder/decoder
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*/
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typedef struct opj_tcd_v2
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{
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/** Position of the tilepart flag in Progression order*/
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OPJ_INT32 tp_pos;
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/** Tile part number*/
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OPJ_UINT32 tp_num;
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/** Current tile part number*/
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OPJ_UINT32 cur_tp_num;
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/** Total number of tileparts of the current tile*/
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OPJ_UINT32 cur_totnum_tp;
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/** Current Packet iterator number */
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OPJ_UINT32 cur_pino;
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/** info on each image tile */
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opj_tcd_image_v2_t *tcd_image;
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/** image header */
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opj_image_t *image;
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/** coding parameters */
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opj_cp_v2_t *cp;
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/** coding/decoding parameters common to all tiles */
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opj_tcp_v2_t *tcp;
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/** current encoded/decoded tile */
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OPJ_UINT32 tcd_tileno;
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/** tell if the tcd is a decoder. */
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OPJ_UINT32 m_is_decoder : 1;
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} opj_tcd_v2_t;
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/** @name Exported functions */
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/*@{*/
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/* ----------------------------------------------------------------------- */
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/**
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Dump the content of a tcd structure
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*/
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void tcd_dump(FILE *fd, opj_tcd_t *tcd, opj_tcd_image_t *img);
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/**
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Create a new TCD handle
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@param FIXME
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@return Returns a new TCD handle if successful returns NULL otherwise
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*/
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opj_tcd_v2_t* opj_tcd_create(opj_bool p_is_decoder);
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/**
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Destroy a previously created TCD handle
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@param tcd TCD handle to destroy
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*/
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void opj_tcd_destroy(opj_tcd_v2_t *tcd);
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/**
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* Initialize the tile coder and may reuse some memory.
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* @param p_tcd TCD handle.
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* @param p_image raw image.
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* @param p_cp coding parameters.
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*
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* @return true if the encoding values could be set (false otherwise).
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*/
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opj_bool opj_tcd_init( opj_tcd_v2_t *p_tcd,
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opj_image_t * p_image,
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opj_cp_v2_t * p_cp );
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/**
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* Allocates memory for decoding a specific tile.
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*
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* @param p_tcd the tile decoder.
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* @param p_tile_no the index of the tile received in sequence. This not necessarily lead to the
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* tile at index p_tile_no.
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*
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* @return true if the remaining data is sufficient.
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*/
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opj_bool opj_tcd_init_decode_tile(opj_tcd_v2_t *p_tcd, OPJ_UINT32 p_tile_no);
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void opj_tcd_makelayer_fixed(opj_tcd_v2_t *tcd, OPJ_UINT32 layno, OPJ_UINT32 final);
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void opj_tcd_rateallocate_fixed(opj_tcd_v2_t *tcd);
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void opj_tcd_makelayer( opj_tcd_v2_t *tcd,
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OPJ_UINT32 layno,
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OPJ_FLOAT64 thresh,
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OPJ_UINT32 final);
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opj_bool opj_tcd_rateallocate( opj_tcd_v2_t *tcd,
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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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* Gets the maximum tile size that will be taken by the tile once decoded.
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*/
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OPJ_UINT32 opj_tcd_get_decoded_tile_size (opj_tcd_v2_t *p_tcd );
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/**
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* Encodes a tile from the raw image into the given buffer.
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* @param p_tcd Tile Coder handle
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* @param p_tile_no Index of the tile to encode.
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* @param p_dest Destination buffer
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* @param p_data_written pointer to an int that is incremented by the number of bytes really written on p_dest
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* @param p_len Maximum length of the destination buffer
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* @param p_cstr_info Codestream information structure
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* @return true if the coding is successfull.
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*/
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opj_bool opj_tcd_encode_tile( opj_tcd_v2_t *p_tcd,
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OPJ_UINT32 p_tile_no,
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OPJ_BYTE *p_dest,
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OPJ_UINT32 * p_data_written,
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OPJ_UINT32 p_len,
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struct opj_codestream_info *p_cstr_info);
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/**
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Decode a tile from a buffer into a raw image
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@param tcd TCD handle
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@param src Source buffer
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@param len Length of source buffer
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@param tileno Number that identifies one of the tiles to be decoded
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*/
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opj_bool opj_tcd_decode_tile( opj_tcd_v2_t *tcd,
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OPJ_BYTE *src,
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OPJ_UINT32 len,
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OPJ_UINT32 tileno,
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opj_codestream_index_t *cstr_info);
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/**
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* Copies tile data from the system onto the given memory block.
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*/
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opj_bool opj_tcd_update_tile_data ( opj_tcd_v2_t *p_tcd,
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OPJ_BYTE * p_dest,
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OPJ_UINT32 p_dest_length );
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/**
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*
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*/
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OPJ_UINT32 opj_tcd_get_encoded_tile_size ( opj_tcd_v2_t *p_tcd );
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/**
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* Initialize the tile coder and may reuse some meory.
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* @param p_tcd TCD handle.
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* @param p_image raw image.
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* @param p_cp coding parameters.
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* @param p_tile_no current tile index to encode.
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*
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* @return true if the encoding values could be set (false otherwise).
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*/
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opj_bool opj_tcd_init_encode_tile ( opj_tcd_v2_t *p_tcd,
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OPJ_UINT32 p_tile_no );
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/**
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* Copies tile data from the given memory block onto the system.
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*/
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opj_bool opj_tcd_copy_tile_data (opj_tcd_v2_t *p_tcd,
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OPJ_BYTE * p_src,
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OPJ_UINT32 p_src_length );
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/* ----------------------------------------------------------------------- */
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/*@}*/
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/*@}*/
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#endif /* __TCD_H */
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