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167 lines
5.7 KiB
167 lines
5.7 KiB
/* |
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* The copyright in this software is being made available under the 2-clauses |
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* BSD License, included below. This software may be subject to other third |
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* party and contributor rights, including patent rights, and no such rights |
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* are granted under this license. |
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* |
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* Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium |
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* Copyright (c) 2002-2014, Professor Benoit Macq |
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* Copyright (c) 2001-2003, David Janssens |
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* Copyright (c) 2002-2003, Yannick Verschueren |
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* Copyright (c) 2003-2007, Francois-Olivier Devaux |
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* Copyright (c) 2003-2014, Antonin Descampe |
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* Copyright (c) 2005, Herve Drolon, FreeImage Team |
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* 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 __T1_H |
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#define __T1_H |
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/** |
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@file t1.h |
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@brief Implementation of the tier-1 coding (coding of code-block coefficients) (T1) |
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The functions in T1.C have for goal to realize the tier-1 coding operation. The functions |
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in T1.C are used by some function in TCD.C. |
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*/ |
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/** @defgroup T1 T1 - Implementation of the tier-1 coding */ |
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/*@{*/ |
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/* ----------------------------------------------------------------------- */ |
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#define T1_NMSEDEC_BITS 7 |
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#define T1_SIG_NE 0x0001 /**< Context orientation : North-East direction */ |
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#define T1_SIG_SE 0x0002 /**< Context orientation : South-East direction */ |
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#define T1_SIG_SW 0x0004 /**< Context orientation : South-West direction */ |
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#define T1_SIG_NW 0x0008 /**< Context orientation : North-West direction */ |
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#define T1_SIG_N 0x0010 /**< Context orientation : North direction */ |
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#define T1_SIG_E 0x0020 /**< Context orientation : East direction */ |
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#define T1_SIG_S 0x0040 /**< Context orientation : South direction */ |
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#define T1_SIG_W 0x0080 /**< Context orientation : West direction */ |
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#define T1_SIG_OTH (T1_SIG_N|T1_SIG_NE|T1_SIG_E|T1_SIG_SE|T1_SIG_S|T1_SIG_SW|T1_SIG_W|T1_SIG_NW) |
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#define T1_SIG_PRIM (T1_SIG_N|T1_SIG_E|T1_SIG_S|T1_SIG_W) |
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#define T1_SGN_N 0x0100 |
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#define T1_SGN_E 0x0200 |
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#define T1_SGN_S 0x0400 |
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#define T1_SGN_W 0x0800 |
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#define T1_SGN (T1_SGN_N|T1_SGN_E|T1_SGN_S|T1_SGN_W) |
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#define T1_SIG 0x1000 |
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#define T1_REFINE 0x2000 |
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#define T1_VISIT 0x4000 |
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#define T1_NUMCTXS_ZC 9 |
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#define T1_NUMCTXS_SC 5 |
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#define T1_NUMCTXS_MAG 3 |
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#define T1_NUMCTXS_AGG 1 |
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#define T1_NUMCTXS_UNI 1 |
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#define T1_CTXNO_ZC 0 |
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#define T1_CTXNO_SC (T1_CTXNO_ZC+T1_NUMCTXS_ZC) |
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#define T1_CTXNO_MAG (T1_CTXNO_SC+T1_NUMCTXS_SC) |
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#define T1_CTXNO_AGG (T1_CTXNO_MAG+T1_NUMCTXS_MAG) |
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#define T1_CTXNO_UNI (T1_CTXNO_AGG+T1_NUMCTXS_AGG) |
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#define T1_NUMCTXS (T1_CTXNO_UNI+T1_NUMCTXS_UNI) |
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#define T1_NMSEDEC_FRACBITS (T1_NMSEDEC_BITS-1) |
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#define T1_TYPE_MQ 0 /**< Normal coding using entropy coder */ |
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#define T1_TYPE_RAW 1 /**< No encoding the information is store under raw format in codestream (mode switch RAW)*/ |
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/* ----------------------------------------------------------------------- */ |
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typedef OPJ_INT16 opj_flag_t; |
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/** |
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Tier-1 coding (coding of code-block coefficients) |
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*/ |
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typedef struct opj_t1 { |
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/** MQC component */ |
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opj_mqc_t *mqc; |
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/** RAW component */ |
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opj_raw_t *raw; |
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OPJ_INT32 *data; |
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opj_flag_t *flags; |
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OPJ_UINT32 w; |
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OPJ_UINT32 h; |
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OPJ_UINT32 datasize; |
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OPJ_UINT32 flagssize; |
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OPJ_UINT32 flags_stride; |
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OPJ_UINT32 data_stride; |
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OPJ_BOOL encoder; |
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} opj_t1_t; |
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#define MACRO_t1_flags(x,y) t1->flags[((x)*(t1->flags_stride))+(y)] |
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/** @name Exported functions */ |
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/*@{*/ |
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/* ----------------------------------------------------------------------- */ |
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/** |
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Encode the code-blocks of a tile |
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@param t1 T1 handle |
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@param tile The tile to encode |
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@param tcp Tile coding parameters |
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@param mct_norms FIXME DOC |
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@param mct_numcomps Number of components used for MCT |
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*/ |
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OPJ_BOOL opj_t1_encode_cblks( opj_t1_t *t1, |
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opj_tcd_tile_t *tile, |
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opj_tcp_t *tcp, |
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const OPJ_FLOAT64 * mct_norms, |
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OPJ_UINT32 mct_numcomps); |
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/** |
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Decode the code-blocks of a tile |
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@param t1 T1 handle |
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@param tilec The tile to decode |
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@param tccp Tile coding parameters |
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*/ |
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OPJ_BOOL opj_t1_decode_cblks( opj_t1_t* t1, |
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opj_tcd_tilecomp_t* tilec, |
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opj_tccp_t* tccp); |
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/** |
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* Creates a new Tier 1 handle |
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* and initializes the look-up tables of the Tier-1 coder/decoder |
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* @return a new T1 handle if successful, returns NULL otherwise |
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*/ |
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opj_t1_t* opj_t1_create(OPJ_BOOL isEncoder); |
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/** |
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* Destroys a previously created T1 handle |
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* |
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* @param p_t1 Tier 1 handle to destroy |
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*/ |
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void opj_t1_destroy(opj_t1_t *p_t1); |
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/* ----------------------------------------------------------------------- */ |
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/*@}*/ |
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/*@}*/ |
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#endif /* __T1_H */
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