me_fullfast.c File Reference

Motion Estimation using Full Search Fast. More...

#include "contributors.h"
#include <limits.h>
#include "global.h"
#include "image.h"
#include "memalloc.h"
#include "mb_access.h"
#include "refbuf.h"
#include "me_distortion.h"
#include "me_fullsearch.h"
#include "conformance.h"
#include "mv-search.h"

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Defines
#define	ADD_UP_BLOCKS()   _o=*_bo; _i=*_bi; _j=*_bj; for(pos=0;pos<max_pos;pos++) _o[pos] = _i[pos] + _j[pos];
#define	INCREMENT(inc)   _bo+=inc; _bi+=inc; _bj+=inc;
#define	GEN_ME   0
Functions
void	InitializeFastFullIntegerSearch (void)
void	ClearFastFullIntegerSearch ()
void	ResetFastFullIntegerSearch ()
void	SetupLargerBlocks (int list, int refindex, int max_pos)
void	SetupFastFullPelSearch (Macroblock *currMB, short ref, int list)
int	FastFullPelBlockMotionSearch (Macroblock *currMB, imgpel *orig_pic, short ref, int list, char ***refPic, short ****tmp_mv, int pic_pix_x, int pic_pix_y, int blocktype, MotionVector *pred_mv, MotionVector *mv, int search_range, int min_mcost, int lambda_factor, int apply_weights)
Variables
short *	spiral_search_x
short *	spiral_search_y
static int **	search_setup_done
static int **	search_center_x
static int **	search_center_y
static int **	pos_00
static distpel *****	BlockSAD
static int **	max_search_range

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Detailed Description

Motion Estimation using Full Search Fast.

Author:

Main contributors (see contributors.h for copyright, address and affiliation details)

• Alexis Michael Tourapis <alexismt@ieee.org>

Definition in file me_fullfast.c.

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Define Documentation

#define GEN_ME   0

Setup the fast search for an macroblock.

Definition at line 271 of file me_fullfast.c.

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Function Documentation

void ClearFastFullIntegerSearch

(

void

)

function for deleting the arrays for fast integer motion estimation

Definition at line 140 of file me_fullfast.c.

References BlockSAD, ImageParameters::max_num_references, pos_00, search_center_x, search_center_y, and search_setup_done.

Referenced by Clear_Motion_Search_Module().

int FastFullPelBlockMotionSearch	(	Macroblock *	currMB,
		imgpel *	orig_pic,
		short	ref,
		int	list,
		char ***	refPic,
		short ****	tmp_mv,
		int	pic_pix_x,
		int	pic_pix_y,
		int	blocktype,
		MotionVector *	pred_mv,
		MotionVector *	mv,
		int	search_range,
		int	min_mcost,
		int	lambda_factor,
		int	apply_weights
	)

Fast Full pixel block motion search.

Definition at line 799 of file me_fullfast.c.

References BlockSAD, ImageParameters::opix_x, ImageParameters::opix_y, pos_00, InputParameters::rdopt, search_center_x, search_center_y, and search_setup_done.

Referenced by init_ME_engine().

void InitializeFastFullIntegerSearch

(

void

)

Full pixel block motion search.

function creating arrays for fast integer motion estimation

Definition at line 61 of file me_fullfast.c.

References BlockSAD, InputParameters::full_search, ImageParameters::max_num_references, no_mem_exit(), pos_00, search_center_x, search_center_y, InputParameters::search_range, and search_setup_done.

Referenced by Init_Motion_Search_Module().

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void ResetFastFullIntegerSearch

(

void

)

function resetting flags for fast integer motion estimation (have to be called in start_macroblock())

Definition at line 186 of file me_fullfast.c.

References ImageParameters::max_num_references, and search_setup_done.

Referenced by start_macroblock().

void SetupLargerBlocks	(	int	list,
		int	refindex,
		int	max_pos
	)

calculation of SAD for larger blocks on the basis of 4x4 blocks

Definition at line 199 of file me_fullfast.c.

References BlockSAD.

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Variable Documentation

distpel***** BlockSAD [static]

SAD for all blocksize, ref. frames and motion vectors.

Definition at line 43 of file me_fullfast.c.

Referenced by ClearFastFullIntegerSearch(), FastFullPelBlockMotionSearch(), InitializeFastFullIntegerSearch(), and SetupLargerBlocks().

int** pos_00 [static]

position of (0,0) vector

Definition at line 42 of file me_fullfast.c.

Referenced by ClearFastFullIntegerSearch(), FastFullPelBlockMotionSearch(), and InitializeFastFullIntegerSearch().

int** search_center_x [static]

absolute search center for fast full motion search

Definition at line 40 of file me_fullfast.c.

Referenced by ClearFastFullIntegerSearch(), FastFullPelBlockMotionSearch(), and InitializeFastFullIntegerSearch().

int** search_center_y [static]

absolute search center for fast full motion search

Definition at line 41 of file me_fullfast.c.

Referenced by ClearFastFullIntegerSearch(), FastFullPelBlockMotionSearch(), and InitializeFastFullIntegerSearch().

int** search_setup_done [static]

flag if all block SAD's have been calculated yet

Definition at line 39 of file me_fullfast.c.

Referenced by ClearFastFullIntegerSearch(), FastFullPelBlockMotionSearch(), InitializeFastFullIntegerSearch(), and ResetFastFullIntegerSearch().