www.pudn.com > henclib263.rar > mot_est.h

/* 
* mot_est.h 
* 
* interface of functions which is used for motion estimation. 
* 
* Copyright (c) 2002-2004 Li Chun-lin(li_chunlin@263.net) 
* 
* This program is free software; you can redistribute it and/or 
* modify it under the terms of the GNU General Public License 
* as published by the Free Software Foundation; either version 2 
* of the License, or (at your option) any later version. 
*  
* This program is distributed in the hope that it will be useful, 
* but WITHOUT ANY WARRANTY; without even the implied warranty of 
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
* GNU General Public License for more details. 
 
* You should have received a copy of the GNU General Public License 
* along with this program; if not, write to the Free Software 
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. 
*/ 
#ifndef MOT_EST_H 
#define MOT_EST_H 
 
#include "HEnc.h" 
 
 
#ifdef  __cplusplus 
extern "C" { 
#endif 
 
 
//! interpolate lum picture 
void interpolate_lum(H263VencStatus *encoder);   
//! grab vector 
void grabVec(H263VencStatus *encoder, MCParam *MC, int BACKWARD); 
//! FS search 
void mv_search_fs(H263VencStatus *encoder, MCParam *MC, int x, int y, int blocksize, int BACKWARD); 
//! MVFAST search 
void mv_search_dmd(H263VencStatus *encoder, MCParam *MC, int x, int y, int blocksize, int BACKWARD); 
//! Find half pel values of MV 
void findhalfpel(H263VencStatus *encoder, MCParam *MC, int x, int y, int blocksize, int BACKWARD); 
//! Set MV to zero 
void zeroVec(MotionVector *MV); 
//! compute SAD 
int me_sad_a(int lx1, int lx2, int x1, int y1, int x2,  int y2, unsigned char *P1, unsigned char *P2,   
			 int sad_last, int blocksize); 
//! compute SAD 
int me_sad_b(int lx1, int lx2, int x1, int y1, int x2,  int y2, unsigned char *P1, unsigned char *P2,   
			 int sad_last, int blocksize); 
//! choose mode 
void choose_mode(H263VencStatus *encoder, MCParam *MC, int x, int y); 
//! if the MV is zero 
int  ZeroVector(MotionVector *mv); 
//! find neighbour MV 
void FindNbrMV(MotionVector *MV[6][MBR+1][MBC+2], int block, int index,  
			   int mb_x, int mb_y, int *vec_x, int *vec_y, int BACKWARD); 
//! print all mv data for a macroblock 
void printmv(H263VencStatus *encoder, MCParam *MC, int r, int c, int BACKWARD); 
 
//! save vectors for the use of following B frames 
void saveVec(MCParam *MC, int pels, int lines); 
 
 
#ifdef  __cplusplus 
} 
#endif 
 
 
#endif