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512 lines
19 KiB
C
512 lines
19 KiB
C
/*
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* The copyright in this software is being made available under the 2-clauses
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* BSD License, included below. This software may be subject to other third
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* party and contributor rights, including patent rights, and no such rights
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* are granted under this license.
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*
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* Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
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* Copyright (c) 2002-2014, Professor Benoit Macq
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* Copyright (c) 2001-2003, David Janssens
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* Copyright (c) 2002-2003, Yannick Verschueren
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* Copyright (c) 2003-2007, Francois-Olivier Devaux
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* Copyright (c) 2003-2014, Antonin Descampe
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* Copyright (c) 2005, Herve Drolon, FreeImage Team
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* Copyright (c) 2008, 2011-2012, Centre National d'Etudes Spatiales (CNES), FR
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* Copyright (c) 2012, CS Systemes d'Information, France
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* Copyright (c) 2017, IntoPIX SA <support@intopix.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef OPJ_TCD_H
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#define OPJ_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 DOC
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*/
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typedef struct opj_tcd_pass {
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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_BITFIELD term : 1;
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} opj_tcd_pass_t;
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/**
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FIXME DOC
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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 DOC
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*/
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typedef struct opj_tcd_cblk_enc {
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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_t* passes; /* information about the passes */
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OPJ_INT32 x0, y0, x1,
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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 data_size; /* Size of allocated data buffer */
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OPJ_UINT32
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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_t;
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/** Chunk of codestream data that is part of a code block */
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typedef struct opj_tcd_seg_data_chunk {
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/* Point to tilepart buffer. We don't make a copy !
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So the tilepart buffer must be kept alive
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as long as we need to decode the codeblocks */
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OPJ_BYTE * data;
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OPJ_UINT32 len; /* Usable length of data */
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} opj_tcd_seg_data_chunk_t;
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/** Segment of a code-block.
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* A segment represent a number of consecutive coding passes, without termination
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* of MQC or RAW between them. */
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typedef struct opj_tcd_seg {
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OPJ_UINT32 len; /* Size of data related to this segment */
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/* Number of passes decoded. Including those that we skip */
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OPJ_UINT32 numpasses;
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/* Number of passes actually to be decoded. To be used for code-block decoding */
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OPJ_UINT32 real_num_passes;
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/* Maximum number of passes for this segment */
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OPJ_UINT32 maxpasses;
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/* Number of new passes for current packed. Transitory value */
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OPJ_UINT32 numnewpasses;
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/* Codestream length for this segment for current packed. Transitory value */
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OPJ_UINT32 newlen;
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} opj_tcd_seg_t;
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/** Code-block for decoding */
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typedef struct opj_tcd_cblk_dec {
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opj_tcd_seg_t* segs; /* segments information */
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opj_tcd_seg_data_chunk_t* chunks; /* Array of chunks */
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/* position of the code-blocks : left upper corner (x0, y0) right low corner (x1,y1) */
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OPJ_INT32 x0, y0, x1, y1;
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/* Mb is The maximum number of bit-planes available for the representation of
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coefficients in any sub-band, b, as defined in Equation (E-2). See
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Section B.10.5 of the standard */
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OPJ_UINT32 Mb; /* currently used only to check if HT decoding is correct */
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/* numbps is Mb - P as defined in Section B.10.5 of the standard */
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OPJ_UINT32 numbps;
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/* number of bits for len, for the current packet. Transitory value */
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OPJ_UINT32 numlenbits;
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/* number of pass added to the code-blocks, for the current packet. Transitory value */
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OPJ_UINT32 numnewpasses;
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/* number of segments, including those of packet we skip */
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OPJ_UINT32 numsegs;
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/* number of segments, to be used for code block decoding */
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OPJ_UINT32 real_num_segs;
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OPJ_UINT32 m_current_max_segs; /* allocated number of segs[] items */
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OPJ_UINT32 numchunks; /* Number of valid chunks items */
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OPJ_UINT32 numchunksalloc; /* Number of chunks item allocated */
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/* Decoded code-block. Only used for subtile decoding. Otherwise tilec->data is directly updated */
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OPJ_INT32* decoded_data;
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} opj_tcd_cblk_dec_t;
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/** Precinct structure */
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typedef struct opj_tcd_precinct {
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/* dimension of the precinct : left upper corner (x0, y0) right low corner (x1,y1) */
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OPJ_INT32 x0, y0, x1, y1;
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OPJ_UINT32 cw, ch; /* number of code-blocks, 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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void* blocks;
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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_t;
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/** Sub-band structure */
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typedef struct opj_tcd_band {
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/* dimension of the subband : left upper corner (x0, y0) right low corner (x1,y1) */
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OPJ_INT32 x0, y0, x1, y1;
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/* band number: for lowest resolution level (0=LL), otherwise (1=HL, 2=LH, 3=HH) */
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OPJ_UINT32 bandno;
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/* precinct information */
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opj_tcd_precinct_t *precincts;
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/* size of data taken by precincts */
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OPJ_UINT32 precincts_data_size;
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OPJ_INT32 numbps;
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OPJ_FLOAT32 stepsize;
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} opj_tcd_band_t;
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/** Tile-component resolution structure */
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typedef struct opj_tcd_resolution {
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/* dimension of the resolution level : left upper corner (x0, y0) right low corner (x1,y1) */
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OPJ_INT32 x0, y0, x1, y1;
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/* number of precincts, in width and height, for this resolution level */
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OPJ_UINT32 pw, ph;
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/* number of sub-bands for the resolution level (1 for lowest resolution level, 3 otherwise) */
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OPJ_UINT32 numbands;
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/* subband information */
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opj_tcd_band_t bands[3];
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/* dimension of the resolution limited to window of interest. Only valid if tcd->whole_tile_decoding is set */
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OPJ_UINT32 win_x0;
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OPJ_UINT32 win_y0;
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OPJ_UINT32 win_x1;
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OPJ_UINT32 win_y1;
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} opj_tcd_resolution_t;
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/** Tile-component structure */
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typedef struct opj_tcd_tilecomp {
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/* dimension of component : left upper corner (x0, y0) right low corner (x1,y1) */
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OPJ_INT32 x0, y0, x1, y1;
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/* component number */
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OPJ_UINT32 compno;
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/* number of resolutions level */
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OPJ_UINT32 numresolutions;
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/* number of resolutions level to decode (at max)*/
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OPJ_UINT32 minimum_num_resolutions;
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/* resolutions information */
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opj_tcd_resolution_t *resolutions;
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/* size of data for resolutions (in bytes) */
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OPJ_UINT32 resolutions_size;
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/* data of the component. For decoding, only valid if tcd->whole_tile_decoding is set (so exclusive of data_win member) */
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OPJ_INT32 *data;
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/* if true, then need to free after usage, otherwise do not free */
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OPJ_BOOL ownsData;
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/* we may either need to allocate this amount of data, or re-use image data and ignore this value */
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size_t data_size_needed;
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/* size of the data of the component */
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size_t data_size;
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/** data of the component limited to window of interest. Only valid for decoding and if tcd->whole_tile_decoding is NOT set (so exclusive of data member) */
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OPJ_INT32 *data_win;
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/* dimension of the component limited to window of interest. Only valid for decoding and if tcd->whole_tile_decoding is NOT set */
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OPJ_UINT32 win_x0;
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OPJ_UINT32 win_y0;
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OPJ_UINT32 win_x1;
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OPJ_UINT32 win_y1;
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/* number of pixels */
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OPJ_SIZE_T numpix;
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} opj_tcd_tilecomp_t;
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/**
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FIXME DOC
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*/
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typedef struct opj_tcd_tile {
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/* dimension of the tile : left upper corner (x0, y0) right low corner (x1,y1) */
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OPJ_INT32 x0, y0, x1, y1;
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OPJ_UINT32 numcomps; /* number of components in tile */
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opj_tcd_tilecomp_t *comps; /* Components information */
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OPJ_SIZE_T numpix; /* number of pixels */
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OPJ_FLOAT64 distotile; /* distortion of the tile */
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OPJ_FLOAT64 distolayer[100]; /* distortion per layer */
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OPJ_UINT32 packno; /* packet number */
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} opj_tcd_tile_t;
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/**
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FIXME DOC
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*/
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typedef struct opj_tcd_image {
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opj_tcd_tile_t *tiles; /* Tiles information */
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}
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opj_tcd_image_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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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_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_t *cp;
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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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OPJ_UINT32 tcd_tileno;
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/** tell if the tcd is a decoder. */
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OPJ_BITFIELD m_is_decoder : 1;
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/** Thread pool */
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opj_thread_pool_t* thread_pool;
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/** Coordinates of the window of interest, in grid reference space */
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OPJ_UINT32 win_x0;
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OPJ_UINT32 win_y0;
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OPJ_UINT32 win_x1;
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OPJ_UINT32 win_y1;
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/** Only valid for decoding. Whether the whole tile is decoded, or just the region in win_x0/win_y0/win_x1/win_y1 */
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OPJ_BOOL whole_tile_decoding;
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/* Array of size image->numcomps indicating if a component must be decoded. NULL if all components must be decoded */
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OPJ_BOOL* used_component;
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} opj_tcd_t;
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/**
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* Structure to hold information needed to generate some markers.
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* Used by encoder.
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*/
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typedef struct opj_tcd_marker_info {
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/** In: Whether information to generate PLT markers in needed */
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OPJ_BOOL need_PLT;
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/** OUT: Number of elements in p_packet_size[] array */
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OPJ_UINT32 packet_count;
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/** OUT: Array of size packet_count, such that p_packet_size[i] is
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* the size in bytes of the ith packet */
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OPJ_UINT32* p_packet_size;
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} opj_tcd_marker_info_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);*/ /* TODO MSD shoul use the new v2 structures */
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/**
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Create a new TCD handle
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@param p_is_decoder FIXME DOC
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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_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_t *tcd);
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/**
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* Create a new opj_tcd_marker_info_t* structure
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* @param need_PLT Whether information is needed to generate PLT markers.
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*/
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opj_tcd_marker_info_t* opj_tcd_marker_info_create(OPJ_BOOL need_PLT);
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/**
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Destroy a previously created opj_tcd_marker_info_t* structure
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@param p_tcd_marker_info Structure to destroy
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*/
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void opj_tcd_marker_info_destroy(opj_tcd_marker_info_t *p_tcd_marker_info);
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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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* @param p_tp thread pool
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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_t *p_tcd,
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opj_image_t * p_image,
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opj_cp_t * p_cp,
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opj_thread_pool_t* p_tp);
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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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* @param p_manager the event manager.
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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_t *p_tcd, OPJ_UINT32 p_tile_no,
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opj_event_mgr_t* p_manager);
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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_t *p_tcd,
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OPJ_BOOL take_into_account_partial_decoding);
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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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* @param p_marker_info Marker information structure
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* @param p_manager the user event manager
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* @return true if the coding is successful.
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*/
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OPJ_BOOL opj_tcd_encode_tile(opj_tcd_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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opj_tcd_marker_info_t* p_marker_info,
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opj_event_mgr_t *p_manager);
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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 win_x0 Upper left x of region to decode (in grid coordinates)
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@param win_y0 Upper left y of region to decode (in grid coordinates)
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@param win_x1 Lower right x of region to decode (in grid coordinates)
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@param win_y1 Lower right y of region to decode (in grid coordinates)
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@param numcomps_to_decode Size of the comps_indices array, or 0 if decoding all components.
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@param comps_indices Array of numcomps values representing the indices
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of the components to decode (relative to the
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codestream, starting at 0). Or NULL if decoding all components.
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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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@param cstr_info FIXME DOC
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@param manager the event manager.
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*/
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OPJ_BOOL opj_tcd_decode_tile(opj_tcd_t *tcd,
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OPJ_UINT32 win_x0,
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OPJ_UINT32 win_y0,
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OPJ_UINT32 win_x1,
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OPJ_UINT32 win_y1,
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OPJ_UINT32 numcomps_to_decode,
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const OPJ_UINT32 *comps_indices,
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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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opj_event_mgr_t *manager);
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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_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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* Get the size in bytes of the input buffer provided before encoded.
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* This must be the size provided to the p_src_length argument of
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* opj_tcd_copy_tile_data()
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*/
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OPJ_SIZE_T opj_tcd_get_encoder_input_buffer_size(opj_tcd_t *p_tcd);
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/**
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* Initialize the tile coder and may reuse some meory.
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*
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* @param p_tcd TCD handle.
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* @param p_tile_no current tile index to encode.
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* @param p_manager the event manager.
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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_t *p_tcd,
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OPJ_UINT32 p_tile_no, opj_event_mgr_t* p_manager);
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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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* p_src_length must be equal to opj_tcd_get_encoder_input_buffer_size()
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*/
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OPJ_BOOL opj_tcd_copy_tile_data(opj_tcd_t *p_tcd,
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OPJ_BYTE * p_src,
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OPJ_SIZE_T p_src_length);
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/**
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* Allocates tile component data
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*
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*
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*/
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OPJ_BOOL opj_alloc_tile_component_data(opj_tcd_tilecomp_t *l_tilec);
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/** Returns whether a sub-band is empty (i.e. whether it has a null area)
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* @param band Sub-band handle.
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* @return OPJ_TRUE whether the sub-band is empty.
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*/
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OPJ_BOOL opj_tcd_is_band_empty(opj_tcd_band_t* band);
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/** Reinitialize a segment */
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void opj_tcd_reinit_segment(opj_tcd_seg_t* seg);
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/** Returns whether a sub-band region contributes to the area of interest
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* tcd->win_x0,tcd->win_y0,tcd->win_x1,tcd->win_y1.
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*
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* @param tcd TCD handle.
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* @param compno Component number
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* @param resno Resolution number
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* @param bandno Band number (*not* band index, ie 0, 1, 2 or 3)
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* @param x0 Upper left x in subband coordinates
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* @param y0 Upper left y in subband coordinates
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* @param x1 Lower right x in subband coordinates
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* @param y1 Lower right y in subband coordinates
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* @return OPJ_TRUE whether the sub-band region contributs to the area of
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* interest.
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*/
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OPJ_BOOL opj_tcd_is_subband_area_of_interest(opj_tcd_t *tcd,
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OPJ_UINT32 compno,
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OPJ_UINT32 resno,
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OPJ_UINT32 bandno,
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OPJ_UINT32 x0,
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OPJ_UINT32 y0,
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OPJ_UINT32 x1,
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OPJ_UINT32 y1);
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/* ----------------------------------------------------------------------- */
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/*@}*/
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/*@}*/
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#endif /* OPJ_TCD_H */
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