/*!
***************************************************************************
* \file
* biaridecod.h
*
* \brief
* Headerfile for binary arithmetic decoder routines
*
* \author
* Detlev Marpe,
* Gabi Bl�ttermann
* Copyright (C) 2000 HEINRICH HERTZ INSTITUTE All Rights Reserved.
*
* \date
* 21. Oct 2000
**************************************************************************
*/
#ifndef _BIARIDECOD_H_
#define _BIARIDECOD_H_
/************************************************************************
* D e f i n i t i o n s
***********************************************************************
*/
/* Range table for LPS */
/*
static const byte rLPS_table_64x4[64][4]=
{
{ 128, 176, 208, 240},
{ 128, 167, 197, 227},
{ 128, 158, 187, 216},
{ 123, 150, 178, 205},
{ 116, 142, 169, 195},
{ 111, 135, 160, 185},
{ 105, 128, 152, 175},
{ 100, 122, 144, 166},
{ 95, 116, 137, 158},
{ 90, 110, 130, 150},
{ 85, 104, 123, 142},
{ 81, 99, 117, 135},
{ 77, 94, 111, 128},
{ 73, 89, 105, 122},
{ 69, 85, 100, 116},
{ 66, 80, 95, 110},
{ 62, 76, 90, 104},
{ 59, 72, 86, 99},
{ 56, 69, 81, 94},
{ 53, 65, 77, 89},
{ 51, 62, 73, 85},
{ 48, 59, 69, 80},
{ 46, 56, 66, 76},
{ 43, 53, 63, 72},
{ 41, 50, 59, 69},
{ 39, 48, 56, 65},
{ 37, 45, 54, 62},
{ 35, 43, 51, 59},
{ 33, 41, 48, 56},
{ 32, 39, 46, 53},
{ 30, 37, 43, 50},
{ 29, 35, 41, 48},
{ 27, 33, 39, 45},
{ 26, 31, 37, 43},
{ 24, 30, 35, 41},
{ 23, 28, 33, 39},
{ 22, 27, 32, 37},
{ 21, 26, 30, 35},
{ 20, 24, 29, 33},
{ 19, 23, 27, 31},
{ 18, 22, 26, 30},
{ 17, 21, 25, 28},
{ 16, 20, 23, 27},
{ 15, 19, 22, 25},
{ 14, 18, 21, 24},
{ 14, 17, 20, 23},
{ 13, 16, 19, 22},
{ 12, 15, 18, 21},
{ 12, 14, 17, 20},
{ 11, 14, 16, 19},
{ 11, 13, 15, 18},
{ 10, 12, 15, 17},
{ 10, 12, 14, 16},
{ 9, 11, 13, 15},
{ 9, 11, 12, 14},
{ 8, 10, 12, 14},
{ 8, 9, 11, 13},
{ 7, 9, 11, 12},
{ 7, 9, 10, 12},
{ 7, 8, 10, 11},
{ 6, 8, 9, 11},
{ 6, 7, 9, 10},
{ 6, 7, 8, 9},
{ 2, 2, 2, 2}
};*/
static const byte rLPS_table_64x4[4][64]={
{128, 128, 128, 123, 116, 111, 105, 100, 95, 90, 85, 81, 77, 73, 69, 66,
62, 59, 56, 53, 51, 48, 46, 43, 41, 39, 37, 35, 33, 32, 30, 29,
27, 26, 24, 23, 22, 21, 20, 19, 18, 17, 16, 15, 14, 14, 13, 12,
12, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 6, 6, 6, 2,
},
{176, 167, 158, 150, 142, 135, 128, 122, 116, 110, 104, 99, 94, 89, 85, 80,
76, 72, 69, 65, 62, 59, 56, 53, 50, 48, 45, 43, 41, 39, 37, 35,
33, 31, 30, 28, 27, 26, 24, 23, 22, 21, 20, 19, 18, 17, 16, 15,
14, 14, 13, 12, 12, 11, 11, 10, 9, 9, 9, 8, 8, 7, 7, 2,
},
{208, 197, 187, 178, 169, 160, 152, 144, 137, 130, 123, 117, 111, 105, 100, 95,
90, 86, 81, 77, 73, 69, 66, 63, 59, 56, 54, 51, 48, 46, 43, 41,
39, 37, 35, 33, 32, 30, 29, 27, 26, 25, 23, 22, 21, 20, 19, 18,
17, 16, 15, 15, 14, 13, 12, 12, 11, 11, 10, 10, 9, 9, 8, 2,
},
{240, 227, 216, 205, 195, 185, 175, 166, 158, 150, 142, 135, 128, 122, 116, 110,
104, 99, 94, 89, 85, 80, 76, 72, 69, 65, 62, 59, 56, 53, 50, 48,
45, 43, 41, 39, 37, 35, 33, 31, 30, 28, 27, 25, 24, 23, 22, 21,
20, 19, 18, 17, 16, 15, 14, 14, 13, 12, 12, 11, 11, 10, 9, 2,
}};
// make uint16 to match biari_decode_symbol
static const byte AC_next_state_MPS_64[64] =
{
1,2,3,4,5,6,7,8,9,10,
11,12,13,14,15,16,17,18,19,20,
21,22,23,24,25,26,27,28,29,30,
31,32,33,34,35,36,37,38,39,40,
41,42,43,44,45,46,47,48,49,50,
51,52,53,54,55,56,57,58,59,60,
61,62,62,63
};
// make uint16 to match biari_decode_symbol
static const byte AC_next_state_LPS_64[64] =
{
0, 0, 1, 2, 2, 4, 4, 5, 6, 7,
8, 9, 9,11,11,12,13,13,15,15,
16,16,18,18,19,19,21,21,22,22,
23,24,24,25,26,26,27,27,28,29,
29,30,30,30,31,32,32,33,33,33,
34,34,35,35,35,36,36,36,37,37,
37,38,38,63
};
static const byte renorm_table_32[32]={6,5,4,4,3,3,3,3,2,2,2,2,2,2,2,2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1};
static const byte renorm_table_256[256]={6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, };
extern void arideco_start_decoding(DecodingEnvironmentPtr eep, unsigned char *code_buffer, int firstbyte, int *code_len);
//extern int arideco_bits_read(const DecodingEnvironmentPtr dep);
extern void arideco_done_decoding(DecodingEnvironmentPtr dep);
extern void biari_init_context (int qp, BiContextTypePtr ctx, const char* ini);
extern unsigned int biari_decode_symbol(DecodingEnvironmentPtr dep, BiContextTypePtr bi_ct );
extern unsigned int biari_decode_symbol_eq_prob(DecodingEnvironmentPtr dep);
extern unsigned int biari_decode_final(DecodingEnvironmentPtr dep);
extern unsigned int getbyte(DecodingEnvironmentPtr dep);
extern unsigned int getword(DecodingEnvironmentPtr dep);
#endif // BIARIDECOD_H_