me_umhexsmp.h File Reference

Fast integer pixel and sub pixel motion estimation Improved and simplified from the original UMHexagonS algorithms See JVT-P021 for details. More...

#include "mbuffer.h"

Include dependency graph for me_umhexsmp.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Data Structures
struct	umhex_smp_struct
Typedefs
typedef struct umhex_smp_struct	UMHexSMPStruct
Functions
void	smpUMHEX_init (ImageParameters *p_Img)
int	smpUMHEX_get_mem (ImageParameters *p_Img)
void	smpUMHEX_free_mem (ImageParameters *p_Img)
void	smpUMHEX_decide_intrabk_SAD (Macroblock *currMB)
void	smpUMHEX_skip_intrabk_SAD (Macroblock *currMB)
void	smpUMHEX_setup (Macroblock *currMB, short, int, int, int, int, short ******)
int	smpUMHEXBipredIntegerPelBlockMotionSearch (Macroblock *, int, MotionVector *, MotionVector *, MotionVector *, MotionVector *, MEBlock *, int, int, int)
int	smpUMHEXIntegerPelBlockMotionSearch (Macroblock *currMB, MotionVector *pred_mv, MEBlock *mv_block, int min_mcost, int lambda_factor)
int	smpUMHEXSubPelBlockMotionSearch (Macroblock *currMB, MotionVector *pred_mv, MEBlock *mv_block, int min_mcost, int lambda_factor)
int	smpUMHEXFullSubPelBlockMotionSearch (Macroblock *currMB, MotionVector *pred_mv, MEBlock *mv_block, int min_mcost, int lambda_factor)
int	smpUMHEXSubPelBlockME (Macroblock *currMB, MotionVector *pred_mv, MEBlock *mv_block, int min_mcost, int *lambda)

---

Detailed Description

Fast integer pixel and sub pixel motion estimation Improved and simplified from the original UMHexagonS algorithms See JVT-P021 for details.

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>

• Xiaoquan Yi <xyi@engr.scu.edu>
• Jun Zhang <jzhang2@engr.scu.edu>

Date:

6. Nov. 2006

Definition in file me_umhexsmp.h.

---

Function Documentation

void smpUMHEX_decide_intrabk_SAD

(

Macroblock *

currMB

)

Set neighbouring block mode (intra/inter) used for fast motion estimation.

Definition at line 886 of file me_umhexsmp.c.

References macroblock::p_Img, macroblock::p_slice, macroblock::pix_x, macroblock::pix_y, and slice::slice_type.

Referenced by init_enc_mb_params().

void smpUMHEX_free_mem

(

ImageParameters *

p_Img

)

Free space for fast motion estimation.

Definition at line 123 of file me_umhexsmp.c.

References free_mem2D(), and free_mem3Dint().

Referenced by free_global_buffers().

Here is the call graph for this function:

int smpUMHEX_get_mem

(

ImageParameters *

p_Img

)

Allocation of space for fast motion estimation.

Definition at line 103 of file me_umhexsmp.c.

References get_mem2D(), get_mem3Dint(), img_par::height, no_mem_exit(), and img_par::width.

Referenced by init_global_buffers().

Here is the call graph for this function:

void smpUMHEX_init

(

ImageParameters *

p_Img

)

Set thresholds for fast motion estimation Those thresholds may be adjusted to trade off rate-distortion performance and simplified UMHEX speed.

Definition at line 87 of file me_umhexsmp.c.

Referenced by init_global_buffers().

void smpUMHEX_setup	(	Macroblock *	currMB,
		short	,
		int	,
		int	,
		int	,
		int	,
		short ******
	)

Set up prediction MV and prediction up layer cost used for fast motion estimation.

Definition at line 959 of file me_umhexsmp.c.

References macroblock::block_x, macroblock::block_y, and macroblock::p_Img.

Referenced by BlockMotionSearch().

void smpUMHEX_skip_intrabk_SAD

(

Macroblock *

currMB

)

Set cost to zero if neighbouring block is intra used for fast motion estimation.

Definition at line 923 of file me_umhexsmp.c.

References img_par::number, macroblock::p_Img, macroblock::p_slice, macroblock::pix_x, and slice::slice_type.

Referenced by end_encode_one_macroblock().

int smpUMHEXBipredIntegerPelBlockMotionSearch	(	Macroblock *	,
		int	,
		MotionVector *	,
		MotionVector *	,
		MotionVector *	,
		MotionVector *	,
		MEBlock *	,
		int	,
		int	,
		int
	)

smpUMHEXBipredIntegerPelBlockMotionSearch: fast pixel block motion search for bipred mode

Definition at line 666 of file me_umhexsmp.c.

References macroblock::p_Img.

Referenced by init_ME_engine().

int smpUMHEXFullSubPelBlockMotionSearch	(	Macroblock *	currMB,
		MotionVector *	pred_mv,
		MEBlock *	mv_block,
		int	min_mcost,
		int	lambda_factor
	)

Sub pixel block motion search enhanced.

Definition at line 380 of file me_umhexsmp.c.

References macroblock::p_Img, macroblock::p_slice, slice::slice_type, img_par::start_me_refinement_hp, and img_par::start_me_refinement_qp.

int smpUMHEXIntegerPelBlockMotionSearch	(	Macroblock *	currMB,
		MotionVector *	pred_mv,
		MEBlock *	mv_block,
		int	min_mcost,
		int	lambda_factor
	)

Fast integer pixel block motion estimation.

Definition at line 142 of file me_umhexsmp.c.

References macroblock::p_Img.

Referenced by init_ME_engine().

int smpUMHEXSubPelBlockMotionSearch	(	Macroblock *	currMB,
		MotionVector *	pred_mv,
		MEBlock *	mv_block,
		int	min_mcost,
		int	lambda_factor
	)

Fast sub pixel block motion estimation.

Definition at line 510 of file me_umhexsmp.c.

References macroblock::p_Img, and img_par::start_me_refinement_hp.