block.h

AVS视频编解码器 能实现视频图像的高效率压缩 能在ＶＣ上高速运行

/*
***********************************************************************
* COPYRIGHT AND WARRANTY INFORMATION
*
* Copyright 2003, Advanced Audio Video Coding Standard, Part II
*
* DISCLAIMER OF WARRANTY
*
* These software programs are available to the users without any
* license fee or royalty on an "as is" basis. The AVS disclaims
* any and all warranties, whether express, implied, or statutory,
* including any implied warranties of merchantability or of fitness
* for a particular purpose. In no event shall the contributors or 
* the AVS be liable for any incidental, punitive, or consequential
* damages of any kind whatsoever arising from the use of this program.
*
* This disclaimer of warranty extends to the user of this program
* and user's customers, employees, agents, transferees, successors,
* and assigns.
*
* The AVS does not represent or warrant that the program furnished
* hereunder are free of infringement of any third-party patents.
* Commercial implementations of AVS, including shareware, may be
* subject to royalty fees to patent holders. Information regarding
* the AVS patent policy is available from the AVS Web site at
* http://www.avs.org.cn
*
* THIS IS NOT A GRANT OF PATENT RIGHTS - SEE THE AVS PATENT POLICY.
************************************************************************
*/

/*
*************************************************************************************
* File name: 
* Function: 
*
*************************************************************************************
*/

#ifndef _AVS_TRANSFORM_H_
#define _AVS_TRANSFORM_H_

#include "global.h"

#define NUM_2D_TABLES 4
#define CODE2D_ESCAPE_SYMBOL 59

// external variables
extern const int AVS_COEFF_COST[64];      //!< TML COEFF_COST 'stretched' for AVS
extern const char AVS_2D_VLC[NUM_2D_TABLES][16][8];  //   Inter, Intra0-13, Intra14-21, Intra22-31

extern const char AVS_2DVLC_INTRA[7][26][27];     
extern const char AVS_2DVLC_INTER[7][26][27];
extern const char AVS_2DVLC_CHROMA[5][26][27];

extern const char VLC_Golomb_Order[3][7][2];          //qwang 11.29
extern const char MaxRun[3][7];                          // added by dj
extern const char RefAbsLevel[19][26];                   // added by dj

//99
short MB_16[8][8], MB_16_temp[8][8];

// typedefs
typedef enum
{
  PIX,
  LIN
} Direction;

// functions
void transform_B8      (int curr_blk[B8_SIZE][B8_SIZE]);
void inv_transform_B8  (int curr_blk[B8_SIZE][B8_SIZE]);
void quant_B8          (int qp, int mode, int curr_blk[B8_SIZE][B8_SIZE]);
int  scanquant_B8      (int qp, int mode, int b8, int curr_blk[B8_SIZE][B8_SIZE], int scrFlag, int *cbp, int *cbp_blk);

int  find_sad_8x8          (int iMode, int iSizeX, int iSizeY, int iOffX, int iOffY, int m7[MB_BLOCK_SIZE][MB_BLOCK_SIZE]);
int  sad_hadamard          (int iSizeX, int iSizeY, int iOffX, int iOffY, int m7[MB_BLOCK_SIZE][MB_BLOCK_SIZE]);
int  writeLumaCoeffAVS_B8  (int b8,int intra);
int  writeChromaCoeffAVS_B8(int b8,int intra);
int Mode_Decision_for_AVS_IntraBlocks(int b8,double lambda,int *min_cost);
double RDCost_for_AVSIntraBlocks(int *nonzero,int b8,int ipmode,double lambda,double  min_rdcost,int mostProbableMode);
void idct_transform(short *mb, short *temp) ;

#endif // _AVS_TRANSFORM_H_