/* | |
* Copyright (c) 2001-2003, David Janssens | |
* Copyright (c) 2002-2003, Yannick Verschueren | |
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe | |
* Copyright (c) 2005, Herve Drolon, FreeImage Team | |
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium | |
* All rights reserved. | |
* | |
* Redistribution and use in source and binary forms, with or without | |
* modification, are permitted provided that the following conditions | |
* are met: | |
* 1. Redistributions of source code must retain the above copyright | |
* notice, this list of conditions and the following disclaimer. | |
* 2. Redistributions in binary form must reproduce the above copyright | |
* notice, this list of conditions and the following disclaimer in the | |
* documentation and/or other materials provided with the distribution. | |
* | |
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS' | |
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | |
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
* POSSIBILITY OF SUCH DAMAGE. | |
*/ | |
#ifndef __T1_H | |
#define __T1_H | |
/** | |
@file t1.h | |
@brief Implementation of the tier-1 coding (coding of code-block coefficients) (T1) | |
The functions in T1.C have for goal to realize the tier-1 coding operation. The functions | |
in T1.C are used by some function in TCD.C. | |
*/ | |
/** @defgroup T1 T1 - Implementation of the tier-1 coding */ | |
/*@{*/ | |
/* ----------------------------------------------------------------------- */ | |
#define T1_NMSEDEC_BITS 7 | |
#define T1_MAXCBLKW 256 /*< Maximum size of code-block (width) */ | |
#define T1_MAXCBLKH 256 /*< Maximum size of code-block (heigth) */ | |
#define T1_MAXCBLKD 256 /*< Maximum size of code-block (depth) */ | |
#define T1_MINCBLKW 4 /*< Minimum size of code-block (width) */ | |
#define T1_MINCBLKH 4 /*< Minimum size of code-block (heigth) */ | |
#define T1_MINCBLKD 4 /*< Minimum size of code-block (depth) */ | |
#define T1_MAXWHD 18 | |
#define T1_CBLKW 256 | |
#define T1_CBLKH 256 | |
#define T1_CBLKD 256 | |
#define T1_SIG_NE 0x0001 /*< Context orientation : North-East direction */ | |
#define T1_SIG_SE 0x0002 /*< Context orientation : South-East direction */ | |
#define T1_SIG_SW 0x0004 /*< Context orientation : South-West direction */ | |
#define T1_SIG_NW 0x0008 /*< Context orientation : North-West direction */ | |
#define T1_SIG_N 0x0010 /*< Context orientation : North direction */ | |
#define T1_SIG_E 0x0020 /*< Context orientation : East direction */ | |
#define T1_SIG_S 0x0040 /*< Context orientation : South direction */ | |
#define T1_SIG_W 0x0080 /*< Context orientation : West direction */ | |
#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) | |
#define T1_SIG_PRIM (T1_SIG_N|T1_SIG_E|T1_SIG_S|T1_SIG_W) | |
#define T1_SGN_N 0x0100 | |
#define T1_SGN_E 0x0200 | |
#define T1_SGN_S 0x0400 | |
#define T1_SGN_W 0x0800 | |
#define T1_SGN (T1_SGN_N|T1_SGN_E|T1_SGN_S|T1_SGN_W) | |
#define T1_SIG 0x1000 | |
#define T1_REFINE 0x2000 | |
#define T1_VISIT 0x4000 | |
#define T1_NUMCTXS_AGG 1 | |
#define T1_NUMCTXS_ZC 9 | |
#define T1_NUMCTXS_MAG 3 | |
#define T1_NUMCTXS_SC 5 | |
#define T1_NUMCTXS_UNI 1 | |
#define T1_CTXNO_AGG 0 | |
#define T1_CTXNO_ZC (T1_CTXNO_AGG+T1_NUMCTXS_AGG) | |
#define T1_CTXNO_MAG (T1_CTXNO_ZC+T1_NUMCTXS_ZC) | |
#define T1_CTXNO_SC (T1_CTXNO_MAG+T1_NUMCTXS_MAG) | |
#define T1_CTXNO_UNI (T1_CTXNO_SC+T1_NUMCTXS_SC) | |
#define T1_NUMCTXS (T1_CTXNO_UNI+T1_NUMCTXS_UNI) | |
#define T1_NMSEDEC_FRACBITS (T1_NMSEDEC_BITS-1) | |
#define T1_TYPE_MQ 0 /*< Normal coding using entropy coder */ | |
#define T1_TYPE_RAW 1 /*< No encoding the information is store under raw format in codestream (mode switch RAW)*/ | |
/* ----------------------------------------------------------------------- */ | |
/** | |
Tier-1 coding (coding of code-block coefficients) | |
*/ | |
typedef struct opj_t1 { | |
/** codec context */ | |
opj_common_ptr cinfo; | |
/** MQC component */ | |
opj_mqc_t *mqc; | |
/** RAW component */ | |
opj_raw_t *raw; | |
/** LUTs for context-based coding */ | |
int lut_ctxno_zc[1024]; | |
int lut_ctxno_sc[256]; | |
int lut_ctxno_mag[4096]; | |
int lut_spb[256]; | |
/** LUTs for decoding normalised MSE */ | |
int lut_nmsedec_sig[1 << T1_NMSEDEC_BITS]; | |
int lut_nmsedec_sig0[1 << T1_NMSEDEC_BITS]; | |
int lut_nmsedec_ref[1 << T1_NMSEDEC_BITS]; | |
int lut_nmsedec_ref0[1 << T1_NMSEDEC_BITS]; | |
/** Codeblock data */ | |
int data[T1_CBLKD][T1_CBLKH][T1_CBLKW];//int ***data; | |
/** Context information for each voxel in codeblock */ | |
int flags[T1_CBLKD + 2][T1_CBLKH + 2][T1_CBLKH + 2];//int ***flags; | |
} opj_t1_t; | |
/** @name Exported functions */ | |
/*@{*/ | |
/* ----------------------------------------------------------------------- */ | |
/** | |
Create a new T1 handle | |
and initialize the look-up tables of the Tier-1 coder/decoder | |
@return Returns a new T1 handle if successful, returns NULL otherwise | |
@see t1_init_luts | |
*/ | |
opj_t1_t* t1_create(opj_common_ptr cinfo); | |
/** | |
Destroy a previously created T1 handle | |
@param t1 T1 handle to destroy | |
*/ | |
void t1_destroy(opj_t1_t *t1); | |
/** | |
Encode the code-blocks of a tile | |
@param t1 T1 handle | |
@param tile The tile to encode | |
@param tcp Tile coding parameters | |
*/ | |
void t1_encode_cblks(opj_t1_t *t1, opj_tcd_tile_t *tile, opj_tcp_t *tcp); | |
/** | |
Decode the code-blocks of a tile | |
@param t1 T1 handle | |
@param tile The tile to decode | |
@param tcp Tile coding parameters | |
*/ | |
void t1_decode_cblks(opj_t1_t *t1, opj_tcd_tile_t *tile, opj_tcp_t *tcp); | |
/** | |
Get weigths of MSE decoding | |
@param nmsedec The normalized MSE reduction | |
@param compno | |
@param level | |
@param orient | |
@param bpno | |
@param stepsize | |
@param numcomps | |
@param dwtid | |
returns MSE associated to decoding pass | |
*/ | |
double t1_getwmsedec(int nmsedec, int compno, int level[3], int orient, int bpno, double stepsize, int numcomps, int dwtid[3]); | |
/* ----------------------------------------------------------------------- */ | |
/*@}*/ | |
/*@}*/ | |
#endif /* __T1_H */ |