?? block.h

?? jm_frext22.ZIP的壓縮文件,主要用于嵌入式系統圖象的編解碼的開發.
?? H
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/*!
 ************************************************************************
 * \file block.h
 *
 * \author
 *  Inge Lille-Lang鴜               <inge.lille-langoy@telenor.com>    \n
 *  Telenor Satellite Services                                         \n
 *  P.O.Box 6914 St.Olavs plass                                        \n
 *  N-0130 Oslo, Norway
 *
 ************************************************************************
 */

#ifndef _BLOCK_H_
#define _BLOCK_H_

#include "global.h"


//! make chroma QP from quant
const byte QP_SCALE_CR[52]=
{
    0, 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,
   28,29,29,30,31,32,32,33,34,34,35,35,36,36,37,37,
   37,38,38,38,39,39,39,39
};


//! single scan pattern
const byte SNGL_SCAN[16][2] =
{
  {0,0},{1,0},{0,1},{0,2},
  {1,1},{2,0},{3,0},{2,1},
  {1,2},{0,3},{1,3},{2,2},
  {3,1},{3,2},{2,3},{3,3}
};

//! field scan pattern
const byte FIELD_SCAN[16][2] =
{
  {0,0},{0,1},{1,0},{0,2},
  {0,3},{1,1},{1,2},{1,3},
  {2,0},{2,1},{2,2},{2,3},
  {3,0},{3,1},{3,2},{3,3}
};


//! array used to find expencive coefficients
const byte COEFF_COST[16] =
{
  3,2,2,1,1,1,0,0,0,0,0,0,0,0,0,0
};



//! bit cost for coefficients
const byte COEFF_BIT_COST[3][16][16]=
{
  { // 2x2 scan (corrested per Gisle's Email 11/23/2000 by StW
    { 3, 5, 7, 9, 9,11,11,11,11,13,13,13,13,13,13,13},
    { 5, 7, 9, 9,11,11,11,11,13,13,13,13,13,13,13,13},
    { 7, 9, 9,11,11,11,11,13,13,13,13,13,13,13,13,15},
    { 7, 9, 9,11,11,11,11,13,13,13,13,13,13,13,13,15},
    { 7, 7, 9, 9, 9, 9,11,11,11,11,11,11,11,11,13,13},
    { 7, 7, 9, 9, 9, 9,11,11,11,11,11,11,11,11,13,13},
    { 7, 7, 9, 9, 9, 9,11,11,11,11,11,11,11,11,13,13},
    { 7, 7, 9, 9, 9, 9,11,11,11,11,11,11,11,11,13,13},
    { 7, 7, 9, 9, 9, 9,11,11,11,11,11,11,11,11,13,13},
    { 7, 7, 9, 9, 9, 9,11,11,11,11,11,11,11,11,13,13},
    { 7, 7, 9, 9, 9, 9,11,11,11,11,11,11,11,11,13,13},
    { 7, 7, 9, 9, 9, 9,11,11,11,11,11,11,11,11,13,13},
    { 7, 7, 9, 9, 9, 9,11,11,11,11,11,11,11,11,13,13},
    { 7, 7, 9, 9, 9, 9,11,11,11,11,11,11,11,11,13,13},
    { 7, 7, 9, 9, 9, 9,11,11,11,11,11,11,11,11,13,13},
    { 7, 7, 9, 9, 9, 9,11,11,11,11,11,11,11,11,13,13},
  },
  {  // double scan
    { 3, 5, 7, 7, 7, 9, 9, 9, 9,11,11,13,13,13,13,15},
    { 5, 9, 9,11,11,13,13,13,13,15,15,15,15,15,15,15},
    { 7,11,11,13,13,13,13,15,15,15,15,15,15,15,15,17},
    { 9,11,11,13,13,13,13,15,15,15,15,15,15,15,15,17},
    { 9,11,11,13,13,13,13,15,15,15,15,15,15,15,15,17},
    {11,11,13,13,13,13,15,15,15,15,15,15,15,15,17,17},
    {11,11,13,13,13,13,15,15,15,15,15,15,15,15,17,17},
    {11,11,13,13,13,13,15,15,15,15,15,15,15,15,17,17},
    {11,11,13,13,13,13,15,15,15,15,15,15,15,15,17,17},
    {11,11,13,13,13,13,15,15,15,15,15,15,15,15,17,17},
    {11,11,13,13,13,13,15,15,15,15,15,15,15,15,17,17},
    {11,11,13,13,13,13,15,15,15,15,15,15,15,15,17,17},
    {11,11,13,13,13,13,15,15,15,15,15,15,15,15,17,17},
    {11,11,13,13,13,13,15,15,15,15,15,15,15,15,17,17},
  },
  {    // single scan
    { 3, 7, 9, 9,11,13,13,15,15,15,15,17,17,17,17,17},
    { 5, 9,11,13,13,15,15,15,15,17,17,17,17,17,17,17},
    { 5, 9,11,13,13,15,15,15,15,17,17,17,17,17,17,17},
    { 7,11,13,13,15,15,15,15,17,17,17,17,17,17,17,17},
    { 7,11,13,13,15,15,15,15,17,17,17,17,17,17,17,17},
    { 7,11,13,13,15,15,15,15,17,17,17,17,17,17,17,17},
    { 9,11,13,13,15,15,15,15,17,17,17,17,17,17,17,17},
    { 9,11,13,13,15,15,15,15,17,17,17,17,17,17,17,17},
    { 9,11,13,13,15,15,15,15,17,17,17,17,17,17,17,17},
    { 9,11,13,13,15,15,15,15,17,17,17,17,17,17,17,17},
    {11,13,13,15,15,15,15,17,17,17,17,17,17,17,17,19},
    {11,13,13,15,15,15,15,17,17,17,17,17,17,17,17,19},
    {11,13,13,15,15,15,15,17,17,17,17,17,17,17,17,19},
    {11,13,13,15,15,15,15,17,17,17,17,17,17,17,17,19},
    {11,13,13,15,15,15,15,17,17,17,17,17,17,17,17,19},
    {11,13,13,15,15,15,15,17,17,17,17,17,17,17,17,19},
  },
};

//! single scan pattern
const byte SCAN_YUV422  [8][2] =
{
  {0,0},{0,1},
  {1,0},{0,2},
  {0,3},{1,1},
  {1,2},{1,3}
};

//! look up tables for FRExt-chroma support
const unsigned char hor_offset[4][4][4] =
  {{{0, 0, 0, 0}, 
  {0, 0, 0, 0}, 
  {0, 0, 0, 0}, 
  {0, 0, 0, 0}},
  
  {{0, 4, 0, 4}, 
  {0, 0, 0, 0}, 
  {0, 0, 0, 0}, 
  {0, 0, 0, 0}},
  
  {{0, 4, 0, 4}, 
  {0, 4, 0, 4}, 
  {0, 0, 0, 0}, 
  {0, 0, 0, 0}},
  
  {{0, 4, 0, 4}, 
  {8,12, 8,12},
  {0, 4, 0, 4},
  {8,12, 8,12}}};
  
const unsigned char ver_offset[4][4][4] =
  { {{0, 0, 0, 0}, 
  {0, 0, 0, 0}, 
  {0, 0, 0, 0}, 
  {0, 0, 0, 0}},             
  
  {{0, 0, 4, 4}, 
  {0, 0, 0, 0}, 
  {0, 0, 0, 0}, 
  {0, 0, 0, 0}},
  
  {{0, 0, 4, 4}, 
  {8, 8,12,12}, 
  {0, 0, 0, 0}, 
  {0, 0, 0, 0}},
  
  {{0, 0, 4, 4},
  {0, 0, 4, 4},
  {8, 8,12,12},
  {8, 8,12,12}}};

static unsigned char cbp_blk_chroma[8][4] =
	{ {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} };

#endif
?? 文件大小 824 K
?? 上傳用戶 RR15133422795
?? 所屬分類 Linux/Unix編程
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