libavcodec/motion_est_template.c File Reference

Motion estimation template. More...

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Defines

#define LOAD_COMMON
#define CHECK_HALF_MV(dx, dy, x, y)
#define CHECK_QUARTER_MV(dx, dy, x, y)
#define CHECK_MV(x, y)
#define CHECK_CLIPPED_MV(ax, ay)
#define CHECK_MV_DIR(x, y, new_dir)
#define check(x, y, S, v)
#define LOAD_COMMON2
#define SAB_CHECK_MV(ax, ay)
#define MAX_SAB_SIZE   ME_MAP_SIZE

Functions

static int hpel_motion_search (MpegEncContext *s, int *mx_ptr, int *my_ptr, int dmin, int src_index, int ref_index, int size, int h)
static int no_sub_motion_search (MpegEncContext *s, int *mx_ptr, int *my_ptr, int dmin, int src_index, int ref_index, int size, int h)
int ff_get_mb_score (MpegEncContext *s, int mx, int my, int src_index, int ref_index, int size, int h, int add_rate)
static int qpel_motion_search (MpegEncContext *s, int *mx_ptr, int *my_ptr, int dmin, int src_index, int ref_index, int size, int h)
static av_always_inline int small_diamond_search (MpegEncContext *s, int *best, int dmin, int src_index, int ref_index, int const penalty_factor, int size, int h, int flags)
static int funny_diamond_search (MpegEncContext *s, int *best, int dmin, int src_index, int ref_index, int const penalty_factor, int size, int h, int flags)
static int hex_search (MpegEncContext *s, int *best, int dmin, int src_index, int ref_index, int const penalty_factor, int size, int h, int flags, int dia_size)
static int l2s_dia_search (MpegEncContext *s, int *best, int dmin, int src_index, int ref_index, int const penalty_factor, int size, int h, int flags)
static int umh_search (MpegEncContext *s, int *best, int dmin, int src_index, int ref_index, int const penalty_factor, int size, int h, int flags)
static int full_search (MpegEncContext *s, int *best, int dmin, int src_index, int ref_index, int const penalty_factor, int size, int h, int flags)
static int sab_diamond_search (MpegEncContext *s, int *best, int dmin, int src_index, int ref_index, int const penalty_factor, int size, int h, int flags)
static int var_diamond_search (MpegEncContext *s, int *best, int dmin, int src_index, int ref_index, int const penalty_factor, int size, int h, int flags)
static av_always_inline int diamond_search (MpegEncContext *s, int *best, int dmin, int src_index, int ref_index, int const penalty_factor, int size, int h, int flags)
static av_always_inline int epzs_motion_search_internal (MpegEncContext *s, int *mx_ptr, int *my_ptr, int P[10][2], int src_index, int ref_index, int16_t(*last_mv)[2], int ref_mv_scale, int flags, int size, int h)
int ff_epzs_motion_search (MpegEncContext *s, int *mx_ptr, int *my_ptr, int P[10][2], int src_index, int ref_index, int16_t(*last_mv)[2], int ref_mv_scale, int size, int h)
static int epzs_motion_search4 (MpegEncContext *s, int *mx_ptr, int *my_ptr, int P[10][2], int src_index, int ref_index, int16_t(*last_mv)[2], int ref_mv_scale)
static int epzs_motion_search2 (MpegEncContext *s, int *mx_ptr, int *my_ptr, int P[10][2], int src_index, int ref_index, int16_t(*last_mv)[2], int ref_mv_scale)

Detailed Description

Motion estimation template.

Definition in file motion_est_template.c.

Define Documentation

#define check ( x,
y,
S,
v   ) 

Value:

if( (x)<(xmin<<(S)) ) printf("%d %d %d %d %d xmin" #v, xmin, (x), (y), s->mb_x, s->mb_y);\
if( (x)>(xmax<<(S)) ) printf("%d %d %d %d %d xmax" #v, xmax, (x), (y), s->mb_x, s->mb_y);\
if( (y)<(ymin<<(S)) ) printf("%d %d %d %d %d ymin" #v, ymin, (x), (y), s->mb_x, s->mb_y);\
if( (y)>(ymax<<(S)) ) printf("%d %d %d %d %d ymax" #v, ymax, (x), (y), s->mb_x, s->mb_y);\

Definition at line 544 of file motion_est_template.c.

Referenced by h261_decode_block(), and voc_probe().

#define CHECK_CLIPPED_MV ( ax,
ay   ) 

Value:

{\
    const int Lx= ax;\
    const int Ly= ay;\
    const int Lx2= FFMAX(xmin, FFMIN(Lx, xmax));\
    const int Ly2= FFMAX(ymin, FFMIN(Ly, ymax));\
    CHECK_MV(Lx2, Ly2)\
}

Definition at line 515 of file motion_est_template.c.

Referenced by epzs_motion_search2(), epzs_motion_search4(), epzs_motion_search_internal(), full_search(), hex_search(), l2s_dia_search(), and umh_search().

#define CHECK_HALF_MV ( dx,
dy,
x,
y   ) 

Value:

{\
    const int hx= 2*(x)+(dx);\
    const int hy= 2*(y)+(dy);\
    d= cmp_hpel(s, x, y, dx, dy, size, h, ref_index, src_index, cmp_sub, chroma_cmp_sub, flags);\
    d += (mv_penalty[hx - pred_x] + mv_penalty[hy - pred_y])*penalty_factor;\
    COPY3_IF_LT(dmin, d, bx, hx, by, hy)\
}

Definition at line 38 of file motion_est_template.c.

Referenced by hpel_motion_search().

#define CHECK_MV ( x,
y   ) 

Value:

{\
    const unsigned key = ((y)<<ME_MAP_MV_BITS) + (x) + map_generation;\
    const int index= (((y)<<ME_MAP_SHIFT) + (x))&(ME_MAP_SIZE-1);\
    assert((x) >= xmin);\
    assert((x) <= xmax);\
    assert((y) >= ymin);\
    assert((y) <= ymax);\
/*printf("check_mv %d %d\n", x, y);*/\
    if(map[index]!=key){\
        d= cmp(s, x, y, 0, 0, size, h, ref_index, src_index, cmpf, chroma_cmpf, flags);\
        map[index]= key;\
        score_map[index]= d;\
        d += (mv_penalty[((x)<<shift)-pred_x] + mv_penalty[((y)<<shift)-pred_y])*penalty_factor;\
/*printf("score:%d\n", d);*/\
        COPY3_IF_LT(dmin, d, best[0], x, best[1], y)\
    }\
}

Definition at line 496 of file motion_est_template.c.

Referenced by epzs_motion_search2(), epzs_motion_search4(), epzs_motion_search_internal(), full_search(), funny_diamond_search(), sab_diamond_search(), umh_search(), and var_diamond_search().

#define CHECK_MV_DIR ( x,
y,
new_dir   ) 

Value:

{\
    const unsigned key = ((y)<<ME_MAP_MV_BITS) + (x) + map_generation;\
    const int index= (((y)<<ME_MAP_SHIFT) + (x))&(ME_MAP_SIZE-1);\
/*printf("check_mv_dir %d %d %d\n", x, y, new_dir);*/\
    if(map[index]!=key){\
        d= cmp(s, x, y, 0, 0, size, h, ref_index, src_index, cmpf, chroma_cmpf, flags);\
        map[index]= key;\
        score_map[index]= d;\
        d += (mv_penalty[((x)<<shift)-pred_x] + mv_penalty[((y)<<shift)-pred_y])*penalty_factor;\
/*printf("score:%d\n", d);*/\
        if(d<dmin){\
            best[0]=x;\
            best[1]=y;\
            dmin=d;\
            next_dir= new_dir;\
        }\
    }\
}

Definition at line 524 of file motion_est_template.c.

Referenced by small_diamond_search().

#define CHECK_QUARTER_MV ( dx,
dy,
x,
y   ) 

Value:

{\
    const int hx= 4*(x)+(dx);\
    const int hy= 4*(y)+(dy);\
    d= cmp_qpel(s, x, y, dx, dy, size, h, ref_index, src_index, cmpf, chroma_cmpf, flags);\
    d += (mv_penalty[hx - pred_x] + mv_penalty[hy - pred_y])*penalty_factor;\
    COPY3_IF_LT(dmin, d, bx, hx, by, hy)\
}

Definition at line 263 of file motion_est_template.c.

Referenced by qpel_motion_search().

#define LOAD_COMMON

Value:

uint32_t av_unused * const score_map= c->score_map;\
    const int av_unused xmin= c->xmin;\
    const int av_unused ymin= c->ymin;\
    const int av_unused xmax= c->xmax;\
    const int av_unused ymax= c->ymax;\
    uint8_t *mv_penalty= c->current_mv_penalty;\
    const int pred_x= c->pred_x;\
    const int pred_y= c->pred_y;\

Definition at line 28 of file motion_est_template.c.

Referenced by epzs_motion_search2(), epzs_motion_search4(), epzs_motion_search_internal(), ff_get_mb_score(), full_search(), funny_diamond_search(), hex_search(), hpel_motion_search(), l2s_dia_search(), qpel_motion_search(), sab_diamond_search(), sad_hpel_motion_search(), small_diamond_search(), umh_search(), and var_diamond_search().

#define LOAD_COMMON2

Value:

uint32_t *map= c->map;\
    const int qpel= flags&FLAG_QPEL;\
    const int shift= 1+qpel;\

Definition at line 550 of file motion_est_template.c.

Referenced by epzs_motion_search2(), epzs_motion_search4(), epzs_motion_search_internal(), full_search(), funny_diamond_search(), hex_search(), l2s_dia_search(), sab_diamond_search(), small_diamond_search(), umh_search(), and var_diamond_search().

#define MAX_SAB_SIZE   ME_MAP_SIZE

Definition at line 822 of file motion_est_template.c.

Referenced by sab_diamond_search().

#define SAB_CHECK_MV ( ax,
ay   ) 

Value:

{\
    const unsigned key = ((ay)<<ME_MAP_MV_BITS) + (ax) + map_generation;\
    const int index= (((ay)<<ME_MAP_SHIFT) + (ax))&(ME_MAP_SIZE-1);\
/*printf("sab check %d %d\n", ax, ay);*/\
    if(map[index]!=key){\
        d= cmp(s, ax, ay, 0, 0, size, h, ref_index, src_index, cmpf, chroma_cmpf, flags);\
        map[index]= key;\
        score_map[index]= d;\
        d += (mv_penalty[((ax)<<shift)-pred_x] + mv_penalty[((ay)<<shift)-pred_y])*penalty_factor;\
/*printf("score: %d\n", d);*/\
        if(d < minima[minima_count-1].height){\
            int j=0;\
            \
            while(d >= minima[j].height) j++;\
\
            memmove(&minima [j+1], &minima [j], (minima_count - j - 1)*sizeof(Minima));\
\
            minima[j].checked= 0;\
            minima[j].height= d;\
            minima[j].x= ax;\
            minima[j].y= ay;\
            \
            i=-1;\
            continue;\
        }\
    }\
}

Definition at line 793 of file motion_est_template.c.

Referenced by sab_diamond_search().

Function Documentation

static av_always_inline int diamond_search ( MpegEncContext *  s,
int *  best,
int  dmin,
int  src_index,
int  ref_index,
int const   penalty_factor,
int  size,
int  h,
int  flags 
) [static]

Definition at line 971 of file motion_est_template.c.

Referenced by epzs_motion_search2(), epzs_motion_search4(), and epzs_motion_search_internal().

static int epzs_motion_search2 ( MpegEncContext *  s,
int *  mx_ptr,
int *  my_ptr,
int  P[10][2],
int  src_index,
int  ref_index,
int16_t(*)  last_mv[2],
int  ref_mv_scale 
) [static]

Definition at line 1191 of file motion_est_template.c.

Referenced by interlaced_search().

static int epzs_motion_search4 ( MpegEncContext *  s,
int *  mx_ptr,
int *  my_ptr,
int  P[10][2],
int  src_index,
int  ref_index,
int16_t(*)  last_mv[2],
int  ref_mv_scale 
) [static]

Definition at line 1131 of file motion_est_template.c.

Referenced by h263_mv4_search().

static av_always_inline int epzs_motion_search_internal ( MpegEncContext *  s,
int *  mx_ptr,
int *  my_ptr,
int  P[10][2],
int  src_index,
int  ref_index,
int16_t(*)  last_mv[2],
int  ref_mv_scale,
int  flags,
int  size,
int  h 
) [static]

Parameters:
P a list of candidate mvs to check before starting the iterative search. If one of the candidates is close to the optimal mv, then it takes fewer iterations. And it increases the chance that we find the optimal mv.

< x and y coordinates of the best motion vector. i.e. the difference between the position of the block currently being encoded and the position of the block chosen to predict it from.

< the score (cmp + penalty) of any given mv

< the best value of d, i.e. the score corresponding to the mv stored in best[].

Definition at line 999 of file motion_est_template.c.

Referenced by ff_epzs_motion_search().

int ff_epzs_motion_search ( MpegEncContext *  s,
int *  mx_ptr,
int *  my_ptr,
int  P[10][2],
int  src_index,
int  ref_index,
int16_t(*)  last_mv[2],
int  ref_mv_scale,
int  size,
int  h 
) [inline]

Definition at line 1116 of file motion_est_template.c.

Referenced by direct_search(), ff_estimate_motion_b(), ff_estimate_p_frame_motion(), and ff_pre_estimate_p_frame_motion().

int ff_get_mb_score ( MpegEncContext *  s,
int  mx,
int  my,
int  src_index,
int  ref_index,
int  size,
int  h,
int  add_rate 
) [inline]

Definition at line 233 of file motion_est_template.c.

Referenced by direct_search(), ff_estimate_motion_b(), and ff_estimate_p_frame_motion().

static int full_search ( MpegEncContext *  s,
int *  best,
int  dmin,
int  src_index,
int  ref_index,
int const   penalty_factor,
int  size,
int  h,
int  flags 
) [static]

Definition at line 758 of file motion_est_template.c.

Referenced by diamond_search().

static int funny_diamond_search ( MpegEncContext *  s,
int *  best,
int  dmin,
int  src_index,
int  ref_index,
int const   penalty_factor,
int  size,
int  h,
int  flags 
) [static]

Definition at line 597 of file motion_est_template.c.

Referenced by diamond_search().

static int hex_search ( MpegEncContext *  s,
int *  best,
int  dmin,
int  src_index,
int  ref_index,
int const   penalty_factor,
int  size,
int  h,
int  flags,
int  dia_size 
) [static]

Definition at line 639 of file motion_est_template.c.

Referenced by diamond_search(), and umh_search().

static int hpel_motion_search ( MpegEncContext *  s,
int *  mx_ptr,
int *  my_ptr,
int  dmin,
int  src_index,
int  ref_index,
int  size,
int  h 
) [static]

Definition at line 116 of file motion_est_template.c.

Referenced by direct_search(), and ff_init_me().

static int l2s_dia_search ( MpegEncContext *  s,
int *  best,
int  dmin,
int  src_index,
int  ref_index,
int const   penalty_factor,
int  size,
int  h,
int  flags 
) [static]

Definition at line 673 of file motion_est_template.c.

Referenced by diamond_search().

static int no_sub_motion_search ( MpegEncContext *  s,
int *  mx_ptr,
int *  my_ptr,
int  dmin,
int  src_index,
int  ref_index,
int  size,
int  h 
) [static]

Definition at line 223 of file motion_est_template.c.

Referenced by ff_init_me().

static int qpel_motion_search ( MpegEncContext *  s,
int *  mx_ptr,
int *  my_ptr,
int  dmin,
int  src_index,
int  ref_index,
int  size,
int  h 
) [static]

Definition at line 272 of file motion_est_template.c.

Referenced by direct_search(), and ff_init_me().

static int sab_diamond_search ( MpegEncContext *  s,
int *  best,
int  dmin,
int  src_index,
int  ref_index,
int const   penalty_factor,
int  size,
int  h,
int  flags 
) [static]

Definition at line 823 of file motion_est_template.c.

Referenced by diamond_search().

static av_always_inline int small_diamond_search ( MpegEncContext *  s,
int *  best,
int  dmin,
int  src_index,
int  ref_index,
int const   penalty_factor,
int  size,
int  h,
int  flags 
) [static]

Definition at line 555 of file motion_est_template.c.

Referenced by diamond_search().

static int umh_search ( MpegEncContext *  s,
int *  best,
int  dmin,
int  src_index,
int  ref_index,
int const   penalty_factor,
int  size,
int  h,
int  flags 
) [static]

Definition at line 711 of file motion_est_template.c.

Referenced by diamond_search().

static int var_diamond_search ( MpegEncContext *  s,
int *  best,
int  dmin,
int  src_index,
int  ref_index,
int const   penalty_factor,
int  size,
int  h,
int  flags 
) [static]

Definition at line 910 of file motion_est_template.c.

Referenced by diamond_search().

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