📄 me_umhexsmp.h
字号:
/*!
*************************************************************************************
*
* \file me_umhexsmp.h
*
* \brief
* 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
*************************************************************************************
*/
#ifndef _ME_UMHEXSMP_H_
#define _ME_UMHEXSMP_H_
#include "mbuffer.h"
unsigned short SymmetricalCrossSearchThreshold1;
unsigned short SymmetricalCrossSearchThreshold2;
unsigned short ConvergeThreshold;
unsigned short SubPelThreshold1;
unsigned short SubPelThreshold3;
byte **smpUMHEX_SearchState; //state for fractional pel search
int ***smpUMHEX_l0_cost; //store SAD information needed for forward median and uplayer prediction
int ***smpUMHEX_l1_cost; //store SAD information needed for backward median and uplayer prediction
byte *smpUMHEX_flag_intra;
int smpUMHEX_flag_intra_SAD;
int smpUMHEX_pred_SAD_uplayer; // Up layer SAD prediction
short smpUMHEX_pred_MV_uplayer_X; // Up layer MV predictor X-component
short smpUMHEX_pred_MV_uplayer_Y; // Up layer MV predictor Y-component
void smpUMHEX_init(void);
int smpUMHEX_get_mem(void);
void smpUMHEX_free_mem(void);
void smpUMHEX_decide_intrabk_SAD(void);
void smpUMHEX_skip_intrabk_SAD(int, int);
void smpUMHEX_setup(short, int, int, int, int, short ******);
int // ==> minimum motion cost after search
smpUMHEXIntegerPelBlockMotionSearch (
imgpel *orig_pic, // <-- not used
short ref, // <-- reference frame (0... or -1 (backward))
int list, // <-- reference picture 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 // ==> minimum motion cost after search
smpUMHEXSubPelBlockMotionSearch (
imgpel* orig_pic, // <-- original pixel values for the AxB block
short ref, // <-- reference frame (0... or -1 (backward))
int list, // <-- reference picture 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 // ==> minimum motion cost after search
smpUMHEXFullSubPelBlockMotionSearch (imgpel* orig_pic, // <-- original pixel values for the AxB block
short ref, // <-- reference frame (0... or -1 (backward))
int list, // <-- reference picture 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 // ==> minimum motion cost after search
smpUMHEXBipredIntegerPelBlockMotionSearch (imgpel* cur_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_x1, // <-- motion vector predictor (x) in sub-pel units
short pred_mv_y1, // <-- motion vector predictor (y) in sub-pel units
short pred_mv_x2, // <-- motion vector predictor (x) in sub-pel units
short pred_mv_y2, // <-- 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
short* s_mv_x, // <--> in: search center (x) / out: motion vector (x) - in pel units
short* s_mv_y, // <--> in: search center (y) / out: 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
#endif
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -