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/*! 
 *************************************************************************** 
 * \file 
 *     block.h 
 * 
 * \brief 
 *    block-handle function and marco definitions 
 *    include IDCT,IQ,Rec block. 
 * 
 * \date 
 *    01. Apr 2005 
 *************************************************************************** 
 */ 
#ifndef _BLOCK_H 
#define _BLOCK_H 
 
#include "global.h" 
#include "defines.h" 
 
#define Q_BITS          15                  
#define DQ_BITS         6                   
#define DQ_ROUND        (1<<(DQ_BITS-1))    
 
 
//#define CODE2D_ESCAPE_SYMBOL 39 
 
// ======================================================== 
// external variables 
// ======================================================== 
extern const int SCAN[16][2];      //!< Scan positions. Positions are stored as (pix,lin).     
extern const byte QP_SCALE_CR[64] ;     
 
void Get_residual( int b8, int b4); 
void Recon_B4(int b8, int b4);     
void Inv_Transform_B4(int b8,int b4);     
void Dequant_B4(int qp, int b8, int b4);      
 
 
#endif