📄 fast_me.h
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/*!
************************************************************************
*
* \file fast_me.h
*
* \brief
* Macro definitions and global variables for fast integer pel motion
* estimation and fractional pel motion estimation
*
* \author
* Main contributors: (see contributors.h for copyright, address and affiliation details)
* - Zhibo Chen <chenzhibo@tsinghua.org.cn>
* - JianFeng Xu <fenax@video.mdc.tsinghua.edu.cn>
* - Wenfang Fu <fwf@video.mdc.tsinghua.edu.cn>
*
* \date
* Apr. 2003
************************************************************************
*/
#ifndef _FAST_ME_H_
#define _FAST_ME_H_
#include "mbuffer.h"
#define EARLY_TERMINATION if(list==0 && ref>0) \
{ \
if ((min_mcost-pred_SAD_ref)<pred_SAD_ref*betaThird) \
goto third_step; \
else if((min_mcost-pred_SAD_ref)<pred_SAD_ref*betaSec) \
goto sec_step; \
} \
else if(blocktype>1) \
{ \
if ((min_mcost-pred_SAD_uplayer)<pred_SAD_uplayer*betaThird) \
{ \
goto third_step; \
} \
else if((min_mcost-pred_SAD_uplayer)<pred_SAD_uplayer*betaSec) \
goto sec_step; \
} \
else \
{ \
if ((min_mcost-pred_SAD_space)<pred_SAD_space*betaThird) \
{ \
goto third_step; \
} \
else if((min_mcost-pred_SAD_space)<pred_SAD_space*betaSec) \
goto sec_step; \
}
#define SEARCH_ONE_PIXEL if(abs(cand_x - center_x) <=search_range && abs(cand_y - center_y)<= search_range) \
{ \
if(!McostState[cand_y-center_y+search_range][cand_x-center_x+search_range]) \
{ \
mcost = MV_COST (lambda_factor, mvshift, cand_x, cand_y, pred_x, pred_y); \
mcost = PartCalMad(ref_pic, orig_pic, get_ref_line,blocksize_y,blocksize_x,blocksize_x4,mcost,min_mcost,cand_x,cand_y); \
McostState[cand_y-center_y+search_range][cand_x-center_x+search_range] = 1; \
if (mcost < min_mcost) \
{ \
best_x = cand_x; \
best_y = cand_y; \
min_mcost = mcost; \
} \
} \
}
#define SEARCH_ONE_PIXEL1(value_iAbort) if(abs(cand_x - center_x) <=search_range && abs(cand_y - center_y)<= search_range) \
{ \
if(!McostState[cand_y-center_y+search_range][cand_x-center_x+search_range]) \
{ \
mcost = MV_COST (lambda_factor, mvshift, cand_x, cand_y, pred_x, pred_y); \
mcost = PartCalMad(ref_pic, orig_pic, get_ref_line,blocksize_y,blocksize_x,blocksize_x4,mcost,min_mcost,cand_x,cand_y); \
McostState[cand_y-center_y+search_range][cand_x-center_x+search_range] = 1; \
if (mcost < min_mcost) \
{ \
best_x = cand_x; \
best_y = cand_y; \
min_mcost = mcost; \
iAbort = value_iAbort; \
} \
} \
}
byte **McostState; //state for integer pel search
byte **SearchState; //state for fractional pel search
int ****fastme_ref_cost; //store SAD information needed for forward ref-frame prediction
int ***fastme_l0_cost; //store SAD information needed for forward median and uplayer prediction
int ***fastme_l1_cost; //store SAD information needed for backward median and uplayer prediction
int pred_SAD_space, pred_SAD_ref,pred_SAD_uplayer; //SAD prediction
int pred_MV_ref[2], pred_MV_uplayer[2]; //pred motion vector by space or temporal correlation,Median is provided
int FME_blocktype; //blocktype for FME SetMotionVectorPredictor
//for early termination
float Bsize[8];
float AlphaSec[8];
float AlphaThird[8];
byte *flag_intra;
int flag_intra_SAD;
void DefineThreshold(void);
void DefineThresholdMB(void);
int get_mem_FME(void);
void free_mem_FME(void);
void decide_intrabk_SAD(void);
void skip_intrabk_SAD(int best_mode, int ref_max);
void setup_FME(short ref, int list, int block_y, int block_x, int blocktype, short ******all_mv);
int // ==> minimum motion cost after search
FastIntegerPelBlockMotionSearch (pel_t** orig_pic, // <-- not used
short ref, // <-- reference frame (0... or -1 (backward))
int list,
int pic_pix_x, // <-- absolute x-coordinate of regarded AxB block
int pic_pix_y, // <-- absolute y-coordinate of regarded AxB block
int blocktype, // <-- block type (1-16x16 ... 7-4x4)
short pred_mv_x, // <-- motion vector predictor (x) in sub-pel units
short pred_mv_y, // <-- motion vector predictor (y) in sub-pel units
short* mv_x, // --> motion vector (x) - in pel units
short* mv_y, // --> motion vector (y) - in pel units
int search_range, // <-- 1-d search range in pel units
int min_mcost, // <-- minimum motion cost (cost for center or huge value)
int lambda_factor);// <-- lagrangian parameter for determining motion cost
int AddUpSADQuarter(int pic_pix_x,int pic_pix_y,int blocksize_x,int blocksize_y,
int cand_mv_x,int cand_mv_y, StorablePicture *ref_picture, pel_t** orig_pic,
int Mvmcost, int min_mcost,int useABT,int blocktype);
int // ==> minimum motion cost after search
FastSubPelBlockMotionSearch (pel_t** orig_pic, // <-- original pixel values for the AxB block
short ref, // <-- reference frame (0... or -1 (backward))
int list,
int pic_pix_x, // <-- absolute x-coordinate of regarded AxB block
int pic_pix_y, // <-- absolute y-coordinate of regarded AxB block
int blocktype, // <-- block type (1-16x16 ... 7-4x4)
short pred_mv_x, // <-- motion vector predictor (x) in sub-pel units
short pred_mv_y, // <-- motion vector predictor (y) in sub-pel units
short* mv_x, // <--> in: search center (x) / out: motion vector (x) - in pel units
short* mv_y, // <--> in: search center (y) / out: motion vector (y) - in pel units
int search_pos2, // <-- search positions for half-pel search (default: 9)
int search_pos4, // <-- search positions for quarter-pel search (default: 9)
int min_mcost, // <-- minimum motion cost (cost for center or huge value)
int lambda_factor, // <-- lagrangian parameter for determining motion cost
int useABT);
int // ==> minimum motion cost after search
SubPelBlockMotionSearch (pel_t** orig_pic, // <-- original pixel values for the AxB block
short ref, // <-- reference frame (0... or -1 (backward))
int list,
int pic_pix_x, // <-- absolute x-coordinate of regarded AxB block
int pic_pix_y, // <-- absolute y-coordinate of regarded AxB block
int blocktype, // <-- block type (1-16x16 ... 7-4x4)
int pred_mv_x, // <-- motion vector predictor (x) in sub-pel units
int pred_mv_y, // <-- motion vector predictor (y) in sub-pel units
short* mv_x, // <--> in: search center (x) / out: motion vector (x) - in pel units
short* mv_y, // <--> in: search center (y) / out: motion vector (y) - in pel units
int search_pos2, // <-- search positions for half-pel search (default: 9)
int search_pos4, // <-- search positions for quarter-pel search (default: 9)
int min_mcost, // <-- minimum motion cost (cost for center or huge value)
int lambda_factor // <-- lagrangian parameter for determining motion cost
);
#endif
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