FFmpeg  1.2.4
motion_est_template.c
Go to the documentation of this file.
1 /*
2  * Motion estimation
3  * Copyright (c) 2002-2004 Michael Niedermayer
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
27 //Let us hope gcc will remove the unused vars ...(gcc 3.2.2 seems to do it ...)
28 #define LOAD_COMMON\
29  uint32_t av_unused * const score_map= c->score_map;\
30  const int av_unused xmin= c->xmin;\
31  const int av_unused ymin= c->ymin;\
32  const int av_unused xmax= c->xmax;\
33  const int av_unused ymax= c->ymax;\
34  uint8_t *mv_penalty= c->current_mv_penalty;\
35  const int pred_x= c->pred_x;\
36  const int pred_y= c->pred_y;\
37 
38 #define CHECK_HALF_MV(dx, dy, x, y)\
39 {\
40  const int hx= 2*(x)+(dx);\
41  const int hy= 2*(y)+(dy);\
42  d= cmp_hpel(s, x, y, dx, dy, size, h, ref_index, src_index, cmp_sub, chroma_cmp_sub, flags);\
43  d += (mv_penalty[hx - pred_x] + mv_penalty[hy - pred_y])*penalty_factor;\
44  COPY3_IF_LT(dmin, d, bx, hx, by, hy)\
45 }
46 
48  int *mx_ptr, int *my_ptr, int dmin,
49  int src_index, int ref_index,
50  int size, int h)
51 {
52  MotionEstContext * const c= &s->me;
53  const int mx = *mx_ptr;
54  const int my = *my_ptr;
55  const int penalty_factor= c->sub_penalty_factor;
56  me_cmp_func cmp_sub, chroma_cmp_sub;
57  int bx=2*mx, by=2*my;
58 
60  int flags= c->sub_flags;
61 
62  //FIXME factorize
63 
64  cmp_sub= s->dsp.me_sub_cmp[size];
65  chroma_cmp_sub= s->dsp.me_sub_cmp[size+1];
66 
67  if(c->skip){ //FIXME move out of hpel?
68  *mx_ptr = 0;
69  *my_ptr = 0;
70  return dmin;
71  }
72 
73  if(c->avctx->me_cmp != c->avctx->me_sub_cmp){
74  dmin= cmp(s, mx, my, 0, 0, size, h, ref_index, src_index, cmp_sub, chroma_cmp_sub, flags);
75  if(mx || my || size>0)
76  dmin += (mv_penalty[2*mx - pred_x] + mv_penalty[2*my - pred_y])*penalty_factor;
77  }
78 
79  if (mx > xmin && mx < xmax &&
80  my > ymin && my < ymax) {
81  int d= dmin;
82  const int index= (my<<ME_MAP_SHIFT) + mx;
83  const int t= score_map[(index-(1<<ME_MAP_SHIFT))&(ME_MAP_SIZE-1)]
84  + (mv_penalty[bx - pred_x] + mv_penalty[by-2 - pred_y])*c->penalty_factor;
85  const int l= score_map[(index- 1 )&(ME_MAP_SIZE-1)]
86  + (mv_penalty[bx-2 - pred_x] + mv_penalty[by - pred_y])*c->penalty_factor;
87  const int r= score_map[(index+ 1 )&(ME_MAP_SIZE-1)]
88  + (mv_penalty[bx+2 - pred_x] + mv_penalty[by - pred_y])*c->penalty_factor;
89  const int b= score_map[(index+(1<<ME_MAP_SHIFT))&(ME_MAP_SIZE-1)]
90  + (mv_penalty[bx - pred_x] + mv_penalty[by+2 - pred_y])*c->penalty_factor;
91 
92 #if defined(ASSERT_LEVEL) && ASSERT_LEVEL > 1
93  unsigned key;
94  unsigned map_generation= c->map_generation;
95  key= ((my-1)<<ME_MAP_MV_BITS) + (mx) + map_generation;
96  av_assert2(c->map[(index-(1<<ME_MAP_SHIFT))&(ME_MAP_SIZE-1)] == key);
97  key= ((my+1)<<ME_MAP_MV_BITS) + (mx) + map_generation;
98  av_assert2(c->map[(index+(1<<ME_MAP_SHIFT))&(ME_MAP_SIZE-1)] == key);
99  key= ((my)<<ME_MAP_MV_BITS) + (mx+1) + map_generation;
100  av_assert2(c->map[(index+1)&(ME_MAP_SIZE-1)] == key);
101  key= ((my)<<ME_MAP_MV_BITS) + (mx-1) + map_generation;
102  av_assert2(c->map[(index-1)&(ME_MAP_SIZE-1)] == key);
103 #endif
104  if(t<=b){
105  CHECK_HALF_MV(0, 1, mx ,my-1)
106  if(l<=r){
107  CHECK_HALF_MV(1, 1, mx-1, my-1)
108  if(t+r<=b+l){
109  CHECK_HALF_MV(1, 1, mx , my-1)
110  }else{
111  CHECK_HALF_MV(1, 1, mx-1, my )
112  }
113  CHECK_HALF_MV(1, 0, mx-1, my )
114  }else{
115  CHECK_HALF_MV(1, 1, mx , my-1)
116  if(t+l<=b+r){
117  CHECK_HALF_MV(1, 1, mx-1, my-1)
118  }else{
119  CHECK_HALF_MV(1, 1, mx , my )
120  }
121  CHECK_HALF_MV(1, 0, mx , my )
122  }
123  }else{
124  if(l<=r){
125  if(t+l<=b+r){
126  CHECK_HALF_MV(1, 1, mx-1, my-1)
127  }else{
128  CHECK_HALF_MV(1, 1, mx , my )
129  }
130  CHECK_HALF_MV(1, 0, mx-1, my)
131  CHECK_HALF_MV(1, 1, mx-1, my)
132  }else{
133  if(t+r<=b+l){
134  CHECK_HALF_MV(1, 1, mx , my-1)
135  }else{
136  CHECK_HALF_MV(1, 1, mx-1, my)
137  }
138  CHECK_HALF_MV(1, 0, mx , my)
139  CHECK_HALF_MV(1, 1, mx , my)
140  }
141  CHECK_HALF_MV(0, 1, mx , my)
142  }
143  av_assert2(bx >= xmin*2 && bx <= xmax*2 && by >= ymin*2 && by <= ymax*2);
144  }
145 
146  *mx_ptr = bx;
147  *my_ptr = by;
148 
149  return dmin;
150 }
151 
153  int *mx_ptr, int *my_ptr, int dmin,
154  int src_index, int ref_index,
155  int size, int h)
156 {
157  (*mx_ptr)<<=1;
158  (*my_ptr)<<=1;
159  return dmin;
160 }
161 
162 static inline int get_mb_score(MpegEncContext *s, int mx, int my,
163  int src_index, int ref_index, int size,
164  int h, int add_rate)
165 {
166 // const int check_luma= s->dsp.me_sub_cmp != s->dsp.mb_cmp;
167  MotionEstContext * const c= &s->me;
168  const int penalty_factor= c->mb_penalty_factor;
169  const int flags= c->mb_flags;
170  const int qpel= flags & FLAG_QPEL;
171  const int mask= 1+2*qpel;
172  me_cmp_func cmp_sub, chroma_cmp_sub;
173  int d;
174 
176 
177  //FIXME factorize
178 
179  cmp_sub= s->dsp.mb_cmp[size];
180  chroma_cmp_sub= s->dsp.mb_cmp[size+1];
181 
182  d= cmp(s, mx>>(qpel+1), my>>(qpel+1), mx&mask, my&mask, size, h, ref_index, src_index, cmp_sub, chroma_cmp_sub, flags);
183  //FIXME check cbp before adding penalty for (0,0) vector
184  if(add_rate && (mx || my || size>0))
185  d += (mv_penalty[mx - pred_x] + mv_penalty[my - pred_y])*penalty_factor;
186 
187  return d;
188 }
189 
190 int ff_get_mb_score(MpegEncContext *s, int mx, int my, int src_index,
191  int ref_index, int size, int h, int add_rate)
192 {
193  return get_mb_score(s, mx, my, src_index, ref_index, size, h, add_rate);
194 }
195 
196 #define CHECK_QUARTER_MV(dx, dy, x, y)\
197 {\
198  const int hx= 4*(x)+(dx);\
199  const int hy= 4*(y)+(dy);\
200  d= cmp_qpel(s, x, y, dx, dy, size, h, ref_index, src_index, cmpf, chroma_cmpf, flags);\
201  d += (mv_penalty[hx - pred_x] + mv_penalty[hy - pred_y])*penalty_factor;\
202  COPY3_IF_LT(dmin, d, bx, hx, by, hy)\
203 }
204 
206  int *mx_ptr, int *my_ptr, int dmin,
207  int src_index, int ref_index,
208  int size, int h)
209 {
210  MotionEstContext * const c= &s->me;
211  const int mx = *mx_ptr;
212  const int my = *my_ptr;
213  const int penalty_factor= c->sub_penalty_factor;
214  const unsigned map_generation = c->map_generation;
215  const int subpel_quality= c->avctx->me_subpel_quality;
216  uint32_t *map= c->map;
217  me_cmp_func cmpf, chroma_cmpf;
218  me_cmp_func cmp_sub, chroma_cmp_sub;
219 
221  int flags= c->sub_flags;
222 
223  cmpf= s->dsp.me_cmp[size];
224  chroma_cmpf= s->dsp.me_cmp[size+1]; //factorize FIXME
225  //FIXME factorize
226 
227  cmp_sub= s->dsp.me_sub_cmp[size];
228  chroma_cmp_sub= s->dsp.me_sub_cmp[size+1];
229 
230  if(c->skip){ //FIXME somehow move up (benchmark)
231  *mx_ptr = 0;
232  *my_ptr = 0;
233  return dmin;
234  }
235 
236  if(c->avctx->me_cmp != c->avctx->me_sub_cmp){
237  dmin= cmp(s, mx, my, 0, 0, size, h, ref_index, src_index, cmp_sub, chroma_cmp_sub, flags);
238  if(mx || my || size>0)
239  dmin += (mv_penalty[4*mx - pred_x] + mv_penalty[4*my - pred_y])*penalty_factor;
240  }
241 
242  if (mx > xmin && mx < xmax &&
243  my > ymin && my < ymax) {
244  int bx=4*mx, by=4*my;
245  int d= dmin;
246  int i, nx, ny;
247  const int index= (my<<ME_MAP_SHIFT) + mx;
248  const int t= score_map[(index-(1<<ME_MAP_SHIFT) )&(ME_MAP_SIZE-1)];
249  const int l= score_map[(index- 1 )&(ME_MAP_SIZE-1)];
250  const int r= score_map[(index+ 1 )&(ME_MAP_SIZE-1)];
251  const int b= score_map[(index+(1<<ME_MAP_SHIFT) )&(ME_MAP_SIZE-1)];
252  const int c= score_map[(index )&(ME_MAP_SIZE-1)];
253  int best[8];
254  int best_pos[8][2];
255 
256  memset(best, 64, sizeof(int)*8);
257  if(s->me.dia_size>=2){
258  const int tl= score_map[(index-(1<<ME_MAP_SHIFT)-1)&(ME_MAP_SIZE-1)];
259  const int bl= score_map[(index+(1<<ME_MAP_SHIFT)-1)&(ME_MAP_SIZE-1)];
260  const int tr= score_map[(index-(1<<ME_MAP_SHIFT)+1)&(ME_MAP_SIZE-1)];
261  const int br= score_map[(index+(1<<ME_MAP_SHIFT)+1)&(ME_MAP_SIZE-1)];
262 
263  for(ny= -3; ny <= 3; ny++){
264  for(nx= -3; nx <= 3; nx++){
265  //FIXME this could overflow (unlikely though)
266  const int64_t t2= nx*nx*(tr + tl - 2*t) + 4*nx*(tr-tl) + 32*t;
267  const int64_t c2= nx*nx*( r + l - 2*c) + 4*nx*( r- l) + 32*c;
268  const int64_t b2= nx*nx*(br + bl - 2*b) + 4*nx*(br-bl) + 32*b;
269  int score= (ny*ny*(b2 + t2 - 2*c2) + 4*ny*(b2 - t2) + 32*c2 + 512)>>10;
270  int i;
271 
272  if((nx&3)==0 && (ny&3)==0) continue;
273 
274  score += (mv_penalty[4*mx + nx - pred_x] + mv_penalty[4*my + ny - pred_y])*penalty_factor;
275 
276 // if(nx&1) score-=1024*c->penalty_factor;
277 // if(ny&1) score-=1024*c->penalty_factor;
278 
279  for(i=0; i<8; i++){
280  if(score < best[i]){
281  memmove(&best[i+1], &best[i], sizeof(int)*(7-i));
282  memmove(&best_pos[i+1][0], &best_pos[i][0], sizeof(int)*2*(7-i));
283  best[i]= score;
284  best_pos[i][0]= nx + 4*mx;
285  best_pos[i][1]= ny + 4*my;
286  break;
287  }
288  }
289  }
290  }
291  }else{
292  int tl;
293  //FIXME this could overflow (unlikely though)
294  const int cx = 4*(r - l);
295  const int cx2= r + l - 2*c;
296  const int cy = 4*(b - t);
297  const int cy2= b + t - 2*c;
298  int cxy;
299 
300  if(map[(index-(1<<ME_MAP_SHIFT)-1)&(ME_MAP_SIZE-1)] == (my<<ME_MAP_MV_BITS) + mx + map_generation && 0){ //FIXME
301  tl= score_map[(index-(1<<ME_MAP_SHIFT)-1)&(ME_MAP_SIZE-1)];
302  }else{
303  tl= cmp(s, mx-1, my-1, 0, 0, size, h, ref_index, src_index, cmpf, chroma_cmpf, flags);//FIXME wrong if chroma me is different
304  }
305 
306  cxy= 2*tl + (cx + cy)/4 - (cx2 + cy2) - 2*c;
307 
308  av_assert2(16*cx2 + 4*cx + 32*c == 32*r);
309  av_assert2(16*cx2 - 4*cx + 32*c == 32*l);
310  av_assert2(16*cy2 + 4*cy + 32*c == 32*b);
311  av_assert2(16*cy2 - 4*cy + 32*c == 32*t);
312  av_assert2(16*cxy + 16*cy2 + 16*cx2 - 4*cy - 4*cx + 32*c == 32*tl);
313 
314  for(ny= -3; ny <= 3; ny++){
315  for(nx= -3; nx <= 3; nx++){
316  //FIXME this could overflow (unlikely though)
317  int score= ny*nx*cxy + nx*nx*cx2 + ny*ny*cy2 + nx*cx + ny*cy + 32*c; //FIXME factor
318  int i;
319 
320  if((nx&3)==0 && (ny&3)==0) continue;
321 
322  score += 32*(mv_penalty[4*mx + nx - pred_x] + mv_penalty[4*my + ny - pred_y])*penalty_factor;
323 // if(nx&1) score-=32*c->penalty_factor;
324  // if(ny&1) score-=32*c->penalty_factor;
325 
326  for(i=0; i<8; i++){
327  if(score < best[i]){
328  memmove(&best[i+1], &best[i], sizeof(int)*(7-i));
329  memmove(&best_pos[i+1][0], &best_pos[i][0], sizeof(int)*2*(7-i));
330  best[i]= score;
331  best_pos[i][0]= nx + 4*mx;
332  best_pos[i][1]= ny + 4*my;
333  break;
334  }
335  }
336  }
337  }
338  }
339  for(i=0; i<subpel_quality; i++){
340  nx= best_pos[i][0];
341  ny= best_pos[i][1];
342  CHECK_QUARTER_MV(nx&3, ny&3, nx>>2, ny>>2)
343  }
344 
345  av_assert2(bx >= xmin*4 && bx <= xmax*4 && by >= ymin*4 && by <= ymax*4);
346 
347  *mx_ptr = bx;
348  *my_ptr = by;
349  }else{
350  *mx_ptr =4*mx;
351  *my_ptr =4*my;
352  }
353 
354  return dmin;
355 }
356 
357 
358 #define CHECK_MV(x,y)\
359 {\
360  const unsigned key = ((y)<<ME_MAP_MV_BITS) + (x) + map_generation;\
361  const int index= (((y)<<ME_MAP_SHIFT) + (x))&(ME_MAP_SIZE-1);\
362  av_assert2((x) >= xmin);\
363  av_assert2((x) <= xmax);\
364  av_assert2((y) >= ymin);\
365  av_assert2((y) <= ymax);\
366  if(map[index]!=key){\
367  d= cmp(s, x, y, 0, 0, size, h, ref_index, src_index, cmpf, chroma_cmpf, flags);\
368  map[index]= key;\
369  score_map[index]= d;\
370  d += (mv_penalty[((x)<<shift)-pred_x] + mv_penalty[((y)<<shift)-pred_y])*penalty_factor;\
371  COPY3_IF_LT(dmin, d, best[0], x, best[1], y)\
372  }\
373 }
374 
375 #define CHECK_CLIPPED_MV(ax,ay)\
376 {\
377  const int Lx= ax;\
378  const int Ly= ay;\
379  const int Lx2= FFMAX(xmin, FFMIN(Lx, xmax));\
380  const int Ly2= FFMAX(ymin, FFMIN(Ly, ymax));\
381  CHECK_MV(Lx2, Ly2)\
382 }
383 
384 #define CHECK_MV_DIR(x,y,new_dir)\
385 {\
386  const unsigned key = ((y)<<ME_MAP_MV_BITS) + (x) + map_generation;\
387  const int index= (((y)<<ME_MAP_SHIFT) + (x))&(ME_MAP_SIZE-1);\
388  if(map[index]!=key){\
389  d= cmp(s, x, y, 0, 0, size, h, ref_index, src_index, cmpf, chroma_cmpf, flags);\
390  map[index]= key;\
391  score_map[index]= d;\
392  d += (mv_penalty[((x)<<shift)-pred_x] + mv_penalty[((y)<<shift)-pred_y])*penalty_factor;\
393  if(d<dmin){\
394  best[0]=x;\
395  best[1]=y;\
396  dmin=d;\
397  next_dir= new_dir;\
398  }\
399  }\
400 }
401 
402 #define check(x,y,S,v)\
403 if( (x)<(xmin<<(S)) ) av_log(NULL, AV_LOG_ERROR, "%d %d %d %d %d xmin" #v, xmin, (x), (y), s->mb_x, s->mb_y);\
404 if( (x)>(xmax<<(S)) ) av_log(NULL, AV_LOG_ERROR, "%d %d %d %d %d xmax" #v, xmax, (x), (y), s->mb_x, s->mb_y);\
405 if( (y)<(ymin<<(S)) ) av_log(NULL, AV_LOG_ERROR, "%d %d %d %d %d ymin" #v, ymin, (x), (y), s->mb_x, s->mb_y);\
406 if( (y)>(ymax<<(S)) ) av_log(NULL, AV_LOG_ERROR, "%d %d %d %d %d ymax" #v, ymax, (x), (y), s->mb_x, s->mb_y);\
407 
408 #define LOAD_COMMON2\
409  uint32_t *map= c->map;\
410  const int qpel= flags&FLAG_QPEL;\
411  const int shift= 1+qpel;\
412 
413 static av_always_inline int small_diamond_search(MpegEncContext * s, int *best, int dmin,
414  int src_index, int ref_index, int const penalty_factor,
415  int size, int h, int flags)
416 {
417  MotionEstContext * const c= &s->me;
418  me_cmp_func cmpf, chroma_cmpf;
419  int next_dir=-1;
422  unsigned map_generation = c->map_generation;
423 
424  cmpf= s->dsp.me_cmp[size];
425  chroma_cmpf= s->dsp.me_cmp[size+1];
426 
427  { /* ensure that the best point is in the MAP as h/qpel refinement needs it */
428  const unsigned key = (best[1]<<ME_MAP_MV_BITS) + best[0] + map_generation;
429  const int index= ((best[1]<<ME_MAP_SHIFT) + best[0])&(ME_MAP_SIZE-1);
430  if(map[index]!=key){ //this will be executed only very rarey
431  score_map[index]= cmp(s, best[0], best[1], 0, 0, size, h, ref_index, src_index, cmpf, chroma_cmpf, flags);
432  map[index]= key;
433  }
434  }
435 
436  for(;;){
437  int d;
438  const int dir= next_dir;
439  const int x= best[0];
440  const int y= best[1];
441  next_dir=-1;
442 
443  if(dir!=2 && x>xmin) CHECK_MV_DIR(x-1, y , 0)
444  if(dir!=3 && y>ymin) CHECK_MV_DIR(x , y-1, 1)
445  if(dir!=0 && x<xmax) CHECK_MV_DIR(x+1, y , 2)
446  if(dir!=1 && y<ymax) CHECK_MV_DIR(x , y+1, 3)
447 
448  if(next_dir==-1){
449  return dmin;
450  }
451  }
452 }
453 
454 static int funny_diamond_search(MpegEncContext * s, int *best, int dmin,
455  int src_index, int ref_index, int const penalty_factor,
456  int size, int h, int flags)
457 {
458  MotionEstContext * const c= &s->me;
459  me_cmp_func cmpf, chroma_cmpf;
460  int dia_size;
463  unsigned map_generation = c->map_generation;
464 
465  cmpf= s->dsp.me_cmp[size];
466  chroma_cmpf= s->dsp.me_cmp[size+1];
467 
468  for(dia_size=1; dia_size<=4; dia_size++){
469  int dir;
470  const int x= best[0];
471  const int y= best[1];
472 
473  if(dia_size&(dia_size-1)) continue;
474 
475  if( x + dia_size > xmax
476  || x - dia_size < xmin
477  || y + dia_size > ymax
478  || y - dia_size < ymin)
479  continue;
480 
481  for(dir= 0; dir<dia_size; dir+=2){
482  int d;
483 
484  CHECK_MV(x + dir , y + dia_size - dir);
485  CHECK_MV(x + dia_size - dir, y - dir );
486  CHECK_MV(x - dir , y - dia_size + dir);
487  CHECK_MV(x - dia_size + dir, y + dir );
488  }
489 
490  if(x!=best[0] || y!=best[1])
491  dia_size=0;
492  }
493  return dmin;
494 }
495 
496 static int hex_search(MpegEncContext * s, int *best, int dmin,
497  int src_index, int ref_index, int const penalty_factor,
498  int size, int h, int flags, int dia_size)
499 {
500  MotionEstContext * const c= &s->me;
501  me_cmp_func cmpf, chroma_cmpf;
504  unsigned map_generation = c->map_generation;
505  int x,y,d;
506  const int dec= dia_size & (dia_size-1);
507 
508  cmpf= s->dsp.me_cmp[size];
509  chroma_cmpf= s->dsp.me_cmp[size+1];
510 
511  for(;dia_size; dia_size= dec ? dia_size-1 : dia_size>>1){
512  do{
513  x= best[0];
514  y= best[1];
515 
516  CHECK_CLIPPED_MV(x -dia_size , y);
517  CHECK_CLIPPED_MV(x+ dia_size , y);
518  CHECK_CLIPPED_MV(x+( dia_size>>1), y+dia_size);
519  CHECK_CLIPPED_MV(x+( dia_size>>1), y-dia_size);
520  if(dia_size>1){
521  CHECK_CLIPPED_MV(x+(-dia_size>>1), y+dia_size);
522  CHECK_CLIPPED_MV(x+(-dia_size>>1), y-dia_size);
523  }
524  }while(best[0] != x || best[1] != y);
525  }
526 
527  return dmin;
528 }
529 
530 static int l2s_dia_search(MpegEncContext * s, int *best, int dmin,
531  int src_index, int ref_index, int const penalty_factor,
532  int size, int h, int flags)
533 {
534  MotionEstContext * const c= &s->me;
535  me_cmp_func cmpf, chroma_cmpf;
538  unsigned map_generation = c->map_generation;
539  int x,y,i,d;
540  int dia_size= c->dia_size&0xFF;
541  const int dec= dia_size & (dia_size-1);
542  static const int hex[8][2]={{-2, 0}, {-1,-1}, { 0,-2}, { 1,-1},
543  { 2, 0}, { 1, 1}, { 0, 2}, {-1, 1}};
544 
545  cmpf= s->dsp.me_cmp[size];
546  chroma_cmpf= s->dsp.me_cmp[size+1];
547 
548  for(; dia_size; dia_size= dec ? dia_size-1 : dia_size>>1){
549  do{
550  x= best[0];
551  y= best[1];
552  for(i=0; i<8; i++){
553  CHECK_CLIPPED_MV(x+hex[i][0]*dia_size, y+hex[i][1]*dia_size);
554  }
555  }while(best[0] != x || best[1] != y);
556  }
557 
558  x= best[0];
559  y= best[1];
560  CHECK_CLIPPED_MV(x+1, y);
561  CHECK_CLIPPED_MV(x, y+1);
562  CHECK_CLIPPED_MV(x-1, y);
563  CHECK_CLIPPED_MV(x, y-1);
564 
565  return dmin;
566 }
567 
568 static int umh_search(MpegEncContext * s, int *best, int dmin,
569  int src_index, int ref_index, int const penalty_factor,
570  int size, int h, int flags)
571 {
572  MotionEstContext * const c= &s->me;
573  me_cmp_func cmpf, chroma_cmpf;
576  unsigned map_generation = c->map_generation;
577  int x,y,x2,y2, i, j, d;
578  const int dia_size= c->dia_size&0xFE;
579  static const int hex[16][2]={{-4,-2}, {-4,-1}, {-4, 0}, {-4, 1}, {-4, 2},
580  { 4,-2}, { 4,-1}, { 4, 0}, { 4, 1}, { 4, 2},
581  {-2, 3}, { 0, 4}, { 2, 3},
582  {-2,-3}, { 0,-4}, { 2,-3},};
583 
584  cmpf= s->dsp.me_cmp[size];
585  chroma_cmpf= s->dsp.me_cmp[size+1];
586 
587  x= best[0];
588  y= best[1];
589  for(x2=FFMAX(x-dia_size+1, xmin); x2<=FFMIN(x+dia_size-1,xmax); x2+=2){
590  CHECK_MV(x2, y);
591  }
592  for(y2=FFMAX(y-dia_size/2+1, ymin); y2<=FFMIN(y+dia_size/2-1,ymax); y2+=2){
593  CHECK_MV(x, y2);
594  }
595 
596  x= best[0];
597  y= best[1];
598  for(y2=FFMAX(y-2, ymin); y2<=FFMIN(y+2,ymax); y2++){
599  for(x2=FFMAX(x-2, xmin); x2<=FFMIN(x+2,xmax); x2++){
600  CHECK_MV(x2, y2);
601  }
602  }
603 
604 //FIXME prevent the CLIP stuff
605 
606  for(j=1; j<=dia_size/4; j++){
607  for(i=0; i<16; i++){
608  CHECK_CLIPPED_MV(x+hex[i][0]*j, y+hex[i][1]*j);
609  }
610  }
611 
612  return hex_search(s, best, dmin, src_index, ref_index, penalty_factor, size, h, flags, 2);
613 }
614 
615 static int full_search(MpegEncContext * s, int *best, int dmin,
616  int src_index, int ref_index, int const penalty_factor,
617  int size, int h, int flags)
618 {
619  MotionEstContext * const c= &s->me;
620  me_cmp_func cmpf, chroma_cmpf;
623  unsigned map_generation = c->map_generation;
624  int x,y, d;
625  const int dia_size= c->dia_size&0xFF;
626 
627  cmpf= s->dsp.me_cmp[size];
628  chroma_cmpf= s->dsp.me_cmp[size+1];
629 
630  for(y=FFMAX(-dia_size, ymin); y<=FFMIN(dia_size,ymax); y++){
631  for(x=FFMAX(-dia_size, xmin); x<=FFMIN(dia_size,xmax); x++){
632  CHECK_MV(x, y);
633  }
634  }
635 
636  x= best[0];
637  y= best[1];
638  d= dmin;
639  CHECK_CLIPPED_MV(x , y);
640  CHECK_CLIPPED_MV(x+1, y);
641  CHECK_CLIPPED_MV(x, y+1);
642  CHECK_CLIPPED_MV(x-1, y);
643  CHECK_CLIPPED_MV(x, y-1);
644  best[0]= x;
645  best[1]= y;
646 
647  return d;
648 }
649 
650 #define SAB_CHECK_MV(ax,ay)\
651 {\
652  const unsigned key = ((ay)<<ME_MAP_MV_BITS) + (ax) + map_generation;\
653  const int index= (((ay)<<ME_MAP_SHIFT) + (ax))&(ME_MAP_SIZE-1);\
654  if(map[index]!=key){\
655  d= cmp(s, ax, ay, 0, 0, size, h, ref_index, src_index, cmpf, chroma_cmpf, flags);\
656  map[index]= key;\
657  score_map[index]= d;\
658  d += (mv_penalty[((ax)<<shift)-pred_x] + mv_penalty[((ay)<<shift)-pred_y])*penalty_factor;\
659  if(d < minima[minima_count-1].height){\
660  int j=0;\
661  \
662  while(d >= minima[j].height) j++;\
663 \
664  memmove(&minima [j+1], &minima [j], (minima_count - j - 1)*sizeof(Minima));\
665 \
666  minima[j].checked= 0;\
667  minima[j].height= d;\
668  minima[j].x= ax;\
669  minima[j].y= ay;\
670  \
671  i=-1;\
672  continue;\
673  }\
674  }\
675 }
676 
677 #define MAX_SAB_SIZE ME_MAP_SIZE
678 static int sab_diamond_search(MpegEncContext * s, int *best, int dmin,
679  int src_index, int ref_index, int const penalty_factor,
680  int size, int h, int flags)
681 {
682  MotionEstContext * const c= &s->me;
683  me_cmp_func cmpf, chroma_cmpf;
684  Minima minima[MAX_SAB_SIZE];
685  const int minima_count= FFABS(c->dia_size);
686  int i, j;
689  unsigned map_generation = c->map_generation;
690 
691  av_assert1(minima_count <= MAX_SAB_SIZE);
692 
693  cmpf= s->dsp.me_cmp[size];
694  chroma_cmpf= s->dsp.me_cmp[size+1];
695 
696  /*Note j<MAX_SAB_SIZE is needed if MAX_SAB_SIZE < ME_MAP_SIZE as j can
697  become larger due to MVs overflowing their ME_MAP_MV_BITS bits space in map
698  */
699  for(j=i=0; i<ME_MAP_SIZE && j<MAX_SAB_SIZE; i++){
700  uint32_t key= map[i];
701 
702  key += (1<<(ME_MAP_MV_BITS-1)) + (1<<(2*ME_MAP_MV_BITS-1));
703 
704  if((key&((-1)<<(2*ME_MAP_MV_BITS))) != map_generation) continue;
705 
706  minima[j].height= score_map[i];
707  minima[j].x= key & ((1<<ME_MAP_MV_BITS)-1); key>>=ME_MAP_MV_BITS;
708  minima[j].y= key & ((1<<ME_MAP_MV_BITS)-1);
709  minima[j].x-= (1<<(ME_MAP_MV_BITS-1));
710  minima[j].y-= (1<<(ME_MAP_MV_BITS-1));
711 
712  // all entries in map should be in range except if the mv overflows their ME_MAP_MV_BITS bits space
713  if( minima[j].x > xmax || minima[j].x < xmin
714  || minima[j].y > ymax || minima[j].y < ymin)
715  continue;
716 
717  minima[j].checked=0;
718  if(minima[j].x || minima[j].y)
719  minima[j].height+= (mv_penalty[((minima[j].x)<<shift)-pred_x] + mv_penalty[((minima[j].y)<<shift)-pred_y])*penalty_factor;
720 
721  j++;
722  }
723 
724  qsort(minima, j, sizeof(Minima), minima_cmp);
725 
726  for(; j<minima_count; j++){
727  minima[j].height=256*256*256*64;
728  minima[j].checked=0;
729  minima[j].x= minima[j].y=0;
730  }
731 
732  for(i=0; i<minima_count; i++){
733  const int x= minima[i].x;
734  const int y= minima[i].y;
735  int d;
736 
737  if(minima[i].checked) continue;
738 
739  if( x >= xmax || x <= xmin
740  || y >= ymax || y <= ymin)
741  continue;
742 
743  SAB_CHECK_MV(x-1, y)
744  SAB_CHECK_MV(x+1, y)
745  SAB_CHECK_MV(x , y-1)
746  SAB_CHECK_MV(x , y+1)
747 
748  minima[i].checked= 1;
749  }
750 
751  best[0]= minima[0].x;
752  best[1]= minima[0].y;
753  dmin= minima[0].height;
754 
755  if( best[0] < xmax && best[0] > xmin
756  && best[1] < ymax && best[1] > ymin){
757  int d;
758  //ensure that the refernece samples for hpel refinement are in the map
759  CHECK_MV(best[0]-1, best[1])
760  CHECK_MV(best[0]+1, best[1])
761  CHECK_MV(best[0], best[1]-1)
762  CHECK_MV(best[0], best[1]+1)
763  }
764  return dmin;
765 }
766 
767 static int var_diamond_search(MpegEncContext * s, int *best, int dmin,
768  int src_index, int ref_index, int const penalty_factor,
769  int size, int h, int flags)
770 {
771  MotionEstContext * const c= &s->me;
772  me_cmp_func cmpf, chroma_cmpf;
773  int dia_size;
776  unsigned map_generation = c->map_generation;
777 
778  cmpf= s->dsp.me_cmp[size];
779  chroma_cmpf= s->dsp.me_cmp[size+1];
780 
781  for(dia_size=1; dia_size<=c->dia_size; dia_size++){
782  int dir, start, end;
783  const int x= best[0];
784  const int y= best[1];
785 
786  start= FFMAX(0, y + dia_size - ymax);
787  end = FFMIN(dia_size, xmax - x + 1);
788  for(dir= start; dir<end; dir++){
789  int d;
790 
791 //check(x + dir,y + dia_size - dir,0, a0)
792  CHECK_MV(x + dir , y + dia_size - dir);
793  }
794 
795  start= FFMAX(0, x + dia_size - xmax);
796  end = FFMIN(dia_size, y - ymin + 1);
797  for(dir= start; dir<end; dir++){
798  int d;
799 
800 //check(x + dia_size - dir, y - dir,0, a1)
801  CHECK_MV(x + dia_size - dir, y - dir );
802  }
803 
804  start= FFMAX(0, -y + dia_size + ymin );
805  end = FFMIN(dia_size, x - xmin + 1);
806  for(dir= start; dir<end; dir++){
807  int d;
808 
809 //check(x - dir,y - dia_size + dir,0, a2)
810  CHECK_MV(x - dir , y - dia_size + dir);
811  }
812 
813  start= FFMAX(0, -x + dia_size + xmin );
814  end = FFMIN(dia_size, ymax - y + 1);
815  for(dir= start; dir<end; dir++){
816  int d;
817 
818 //check(x - dia_size + dir, y + dir,0, a3)
819  CHECK_MV(x - dia_size + dir, y + dir );
820  }
821 
822  if(x!=best[0] || y!=best[1])
823  dia_size=0;
824  }
825  return dmin;
826 }
827 
828 static av_always_inline int diamond_search(MpegEncContext * s, int *best, int dmin,
829  int src_index, int ref_index, int const penalty_factor,
830  int size, int h, int flags){
831  MotionEstContext * const c= &s->me;
832  if(c->dia_size==-1)
833  return funny_diamond_search(s, best, dmin, src_index, ref_index, penalty_factor, size, h, flags);
834  else if(c->dia_size<-1)
835  return sab_diamond_search(s, best, dmin, src_index, ref_index, penalty_factor, size, h, flags);
836  else if(c->dia_size<2)
837  return small_diamond_search(s, best, dmin, src_index, ref_index, penalty_factor, size, h, flags);
838  else if(c->dia_size>1024)
839  return full_search(s, best, dmin, src_index, ref_index, penalty_factor, size, h, flags);
840  else if(c->dia_size>768)
841  return umh_search(s, best, dmin, src_index, ref_index, penalty_factor, size, h, flags);
842  else if(c->dia_size>512)
843  return hex_search(s, best, dmin, src_index, ref_index, penalty_factor, size, h, flags, c->dia_size&0xFF);
844  else if(c->dia_size>256)
845  return l2s_dia_search(s, best, dmin, src_index, ref_index, penalty_factor, size, h, flags);
846  else
847  return var_diamond_search(s, best, dmin, src_index, ref_index, penalty_factor, size, h, flags);
848 }
849 
856 static av_always_inline int epzs_motion_search_internal(MpegEncContext * s, int *mx_ptr, int *my_ptr,
857  int P[10][2], int src_index, int ref_index, int16_t (*last_mv)[2],
858  int ref_mv_scale, int flags, int size, int h)
859 {
860  MotionEstContext * const c= &s->me;
861  int best[2]={0, 0};
865  int d;
866  int dmin;
868  unsigned map_generation;
869  int penalty_factor;
870  const int ref_mv_stride= s->mb_stride; //pass as arg FIXME
871  const int ref_mv_xy= s->mb_x + s->mb_y*ref_mv_stride; //add to last_mv beforepassing FIXME
872  me_cmp_func cmpf, chroma_cmpf;
873 
876 
877  if(c->pre_pass){
878  penalty_factor= c->pre_penalty_factor;
879  cmpf= s->dsp.me_pre_cmp[size];
880  chroma_cmpf= s->dsp.me_pre_cmp[size+1];
881  }else{
882  penalty_factor= c->penalty_factor;
883  cmpf= s->dsp.me_cmp[size];
884  chroma_cmpf= s->dsp.me_cmp[size+1];
885  }
886 
887  map_generation= update_map_generation(c);
888 
889  av_assert2(cmpf);
890  dmin= cmp(s, 0, 0, 0, 0, size, h, ref_index, src_index, cmpf, chroma_cmpf, flags);
891  map[0]= map_generation;
892  score_map[0]= dmin;
893 
894  //FIXME precalc first term below?
895  if((s->pict_type == AV_PICTURE_TYPE_B && !(c->flags & FLAG_DIRECT)) || s->flags&CODEC_FLAG_MV0)
896  dmin += (mv_penalty[pred_x] + mv_penalty[pred_y])*penalty_factor;
897 
898  /* first line */
899  if (s->first_slice_line) {
900  CHECK_MV(P_LEFT[0]>>shift, P_LEFT[1]>>shift)
901  CHECK_CLIPPED_MV((last_mv[ref_mv_xy][0]*ref_mv_scale + (1<<15))>>16,
902  (last_mv[ref_mv_xy][1]*ref_mv_scale + (1<<15))>>16)
903  }else{
904  if(dmin<((h*h*s->avctx->mv0_threshold)>>8)
905  && ( P_LEFT[0] |P_LEFT[1]
906  |P_TOP[0] |P_TOP[1]
907  |P_TOPRIGHT[0]|P_TOPRIGHT[1])==0){
908  *mx_ptr= 0;
909  *my_ptr= 0;
910  c->skip=1;
911  return dmin;
912  }
913  CHECK_MV( P_MEDIAN[0] >>shift , P_MEDIAN[1] >>shift)
914  CHECK_CLIPPED_MV((P_MEDIAN[0]>>shift) , (P_MEDIAN[1]>>shift)-1)
915  CHECK_CLIPPED_MV((P_MEDIAN[0]>>shift) , (P_MEDIAN[1]>>shift)+1)
916  CHECK_CLIPPED_MV((P_MEDIAN[0]>>shift)-1, (P_MEDIAN[1]>>shift) )
917  CHECK_CLIPPED_MV((P_MEDIAN[0]>>shift)+1, (P_MEDIAN[1]>>shift) )
918  CHECK_CLIPPED_MV((last_mv[ref_mv_xy][0]*ref_mv_scale + (1<<15))>>16,
919  (last_mv[ref_mv_xy][1]*ref_mv_scale + (1<<15))>>16)
920  CHECK_MV(P_LEFT[0] >>shift, P_LEFT[1] >>shift)
921  CHECK_MV(P_TOP[0] >>shift, P_TOP[1] >>shift)
923  }
924  if(dmin>h*h*4){
925  if(c->pre_pass){
926  CHECK_CLIPPED_MV((last_mv[ref_mv_xy-1][0]*ref_mv_scale + (1<<15))>>16,
927  (last_mv[ref_mv_xy-1][1]*ref_mv_scale + (1<<15))>>16)
928  if(!s->first_slice_line)
929  CHECK_CLIPPED_MV((last_mv[ref_mv_xy-ref_mv_stride][0]*ref_mv_scale + (1<<15))>>16,
930  (last_mv[ref_mv_xy-ref_mv_stride][1]*ref_mv_scale + (1<<15))>>16)
931  }else{
932  CHECK_CLIPPED_MV((last_mv[ref_mv_xy+1][0]*ref_mv_scale + (1<<15))>>16,
933  (last_mv[ref_mv_xy+1][1]*ref_mv_scale + (1<<15))>>16)
934  if(s->mb_y+1<s->end_mb_y) //FIXME replace at least with last_slice_line
935  CHECK_CLIPPED_MV((last_mv[ref_mv_xy+ref_mv_stride][0]*ref_mv_scale + (1<<15))>>16,
936  (last_mv[ref_mv_xy+ref_mv_stride][1]*ref_mv_scale + (1<<15))>>16)
937  }
938  }
939 
940  if(c->avctx->last_predictor_count){
941  const int count= c->avctx->last_predictor_count;
942  const int xstart= FFMAX(0, s->mb_x - count);
943  const int ystart= FFMAX(0, s->mb_y - count);
944  const int xend= FFMIN(s->mb_width , s->mb_x + count + 1);
945  const int yend= FFMIN(s->mb_height, s->mb_y + count + 1);
946  int mb_y;
947 
948  for(mb_y=ystart; mb_y<yend; mb_y++){
949  int mb_x;
950  for(mb_x=xstart; mb_x<xend; mb_x++){
951  const int xy= mb_x + 1 + (mb_y + 1)*ref_mv_stride;
952  int mx= (last_mv[xy][0]*ref_mv_scale + (1<<15))>>16;
953  int my= (last_mv[xy][1]*ref_mv_scale + (1<<15))>>16;
954 
955  if(mx>xmax || mx<xmin || my>ymax || my<ymin) continue;
956  CHECK_MV(mx,my)
957  }
958  }
959  }
960 
961 //check(best[0],best[1],0, b0)
962  dmin= diamond_search(s, best, dmin, src_index, ref_index, penalty_factor, size, h, flags);
963 
964 //check(best[0],best[1],0, b1)
965  *mx_ptr= best[0];
966  *my_ptr= best[1];
967 
968  return dmin;
969 }
970 
971 //this function is dedicated to the braindamaged gcc
972 int ff_epzs_motion_search(MpegEncContext *s, int *mx_ptr, int *my_ptr,
973  int P[10][2], int src_index, int ref_index,
974  int16_t (*last_mv)[2], int ref_mv_scale,
975  int size, int h)
976 {
977  MotionEstContext * const c= &s->me;
978 //FIXME convert other functions in the same way if faster
979  if(c->flags==0 && h==16 && size==0){
980  return epzs_motion_search_internal(s, mx_ptr, my_ptr, P, src_index, ref_index, last_mv, ref_mv_scale, 0, 0, 16);
981 // case FLAG_QPEL:
982 // return epzs_motion_search_internal(s, mx_ptr, my_ptr, P, src_index, ref_index, last_mv, ref_mv_scale, FLAG_QPEL);
983  }else{
984  return epzs_motion_search_internal(s, mx_ptr, my_ptr, P, src_index, ref_index, last_mv, ref_mv_scale, c->flags, size, h);
985  }
986 }
987 
989  int *mx_ptr, int *my_ptr, int P[10][2],
990  int src_index, int ref_index, int16_t (*last_mv)[2],
991  int ref_mv_scale)
992 {
993  MotionEstContext * const c= &s->me;
994  int best[2]={0, 0};
995  int d, dmin;
996  unsigned map_generation;
997  const int penalty_factor= c->penalty_factor;
998  const int size=1;
999  const int h=8;
1000  const int ref_mv_stride= s->mb_stride;
1001  const int ref_mv_xy= s->mb_x + s->mb_y *ref_mv_stride;
1002  me_cmp_func cmpf, chroma_cmpf;
1003  LOAD_COMMON
1004  int flags= c->flags;
1005  LOAD_COMMON2
1006 
1007  cmpf= s->dsp.me_cmp[size];
1008  chroma_cmpf= s->dsp.me_cmp[size+1];
1009 
1010  map_generation= update_map_generation(c);
1011 
1012  dmin = 1000000;
1013 
1014  /* first line */
1015  if (s->first_slice_line) {
1016  CHECK_MV(P_LEFT[0]>>shift, P_LEFT[1]>>shift)
1017  CHECK_CLIPPED_MV((last_mv[ref_mv_xy][0]*ref_mv_scale + (1<<15))>>16,
1018  (last_mv[ref_mv_xy][1]*ref_mv_scale + (1<<15))>>16)
1019  CHECK_MV(P_MV1[0]>>shift, P_MV1[1]>>shift)
1020  }else{
1021  CHECK_MV(P_MV1[0]>>shift, P_MV1[1]>>shift)
1022  //FIXME try some early stop
1024  CHECK_MV(P_LEFT[0]>>shift, P_LEFT[1]>>shift)
1025  CHECK_MV(P_TOP[0]>>shift, P_TOP[1]>>shift)
1027  CHECK_CLIPPED_MV((last_mv[ref_mv_xy][0]*ref_mv_scale + (1<<15))>>16,
1028  (last_mv[ref_mv_xy][1]*ref_mv_scale + (1<<15))>>16)
1029  }
1030  if(dmin>64*4){
1031  CHECK_CLIPPED_MV((last_mv[ref_mv_xy+1][0]*ref_mv_scale + (1<<15))>>16,
1032  (last_mv[ref_mv_xy+1][1]*ref_mv_scale + (1<<15))>>16)
1033  if(s->mb_y+1<s->end_mb_y) //FIXME replace at least with last_slice_line
1034  CHECK_CLIPPED_MV((last_mv[ref_mv_xy+ref_mv_stride][0]*ref_mv_scale + (1<<15))>>16,
1035  (last_mv[ref_mv_xy+ref_mv_stride][1]*ref_mv_scale + (1<<15))>>16)
1036  }
1037 
1038  dmin= diamond_search(s, best, dmin, src_index, ref_index, penalty_factor, size, h, flags);
1039 
1040  *mx_ptr= best[0];
1041  *my_ptr= best[1];
1042 
1043  return dmin;
1044 }
1045 
1046 //try to merge with above FIXME (needs PSNR test)
1048  int *mx_ptr, int *my_ptr, int P[10][2],
1049  int src_index, int ref_index, int16_t (*last_mv)[2],
1050  int ref_mv_scale)
1051 {
1052  MotionEstContext * const c= &s->me;
1053  int best[2]={0, 0};
1054  int d, dmin;
1055  unsigned map_generation;
1056  const int penalty_factor= c->penalty_factor;
1057  const int size=0; //FIXME pass as arg
1058  const int h=8;
1059  const int ref_mv_stride= s->mb_stride;
1060  const int ref_mv_xy= s->mb_x + s->mb_y *ref_mv_stride;
1061  me_cmp_func cmpf, chroma_cmpf;
1062  LOAD_COMMON
1063  int flags= c->flags;
1064  LOAD_COMMON2
1065 
1066  cmpf= s->dsp.me_cmp[size];
1067  chroma_cmpf= s->dsp.me_cmp[size+1];
1068 
1069  map_generation= update_map_generation(c);
1070 
1071  dmin = 1000000;
1072 
1073  /* first line */
1074  if (s->first_slice_line) {
1075  CHECK_MV(P_LEFT[0]>>shift, P_LEFT[1]>>shift)
1076  CHECK_CLIPPED_MV((last_mv[ref_mv_xy][0]*ref_mv_scale + (1<<15))>>16,
1077  (last_mv[ref_mv_xy][1]*ref_mv_scale + (1<<15))>>16)
1078  CHECK_MV(P_MV1[0]>>shift, P_MV1[1]>>shift)
1079  }else{
1080  CHECK_MV(P_MV1[0]>>shift, P_MV1[1]>>shift)
1081  //FIXME try some early stop
1083  CHECK_MV(P_LEFT[0]>>shift, P_LEFT[1]>>shift)
1084  CHECK_MV(P_TOP[0]>>shift, P_TOP[1]>>shift)
1086  CHECK_CLIPPED_MV((last_mv[ref_mv_xy][0]*ref_mv_scale + (1<<15))>>16,
1087  (last_mv[ref_mv_xy][1]*ref_mv_scale + (1<<15))>>16)
1088  }
1089  if(dmin>64*4){
1090  CHECK_CLIPPED_MV((last_mv[ref_mv_xy+1][0]*ref_mv_scale + (1<<15))>>16,
1091  (last_mv[ref_mv_xy+1][1]*ref_mv_scale + (1<<15))>>16)
1092  if(s->mb_y+1<s->end_mb_y) //FIXME replace at least with last_slice_line
1093  CHECK_CLIPPED_MV((last_mv[ref_mv_xy+ref_mv_stride][0]*ref_mv_scale + (1<<15))>>16,
1094  (last_mv[ref_mv_xy+ref_mv_stride][1]*ref_mv_scale + (1<<15))>>16)
1095  }
1096 
1097  dmin= diamond_search(s, best, dmin, src_index, ref_index, penalty_factor, size, h, flags);
1098 
1099  *mx_ptr= best[0];
1100  *my_ptr= best[1];
1101 
1102  return dmin;
1103 }