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motion_est.c
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1 /*
2  * Motion estimation
3  * Copyright (c) 2000,2001 Fabrice Bellard
4  * Copyright (c) 2002-2004 Michael Niedermayer
5  *
6  * new motion estimation (X1/EPZS) by Michael Niedermayer <michaelni@gmx.at>
7  *
8  * This file is part of FFmpeg.
9  *
10  * FFmpeg is free software; you can redistribute it and/or
11  * modify it under the terms of the GNU Lesser General Public
12  * License as published by the Free Software Foundation; either
13  * version 2.1 of the License, or (at your option) any later version.
14  *
15  * FFmpeg is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18  * Lesser General Public License for more details.
19  *
20  * You should have received a copy of the GNU Lesser General Public
21  * License along with FFmpeg; if not, write to the Free Software
22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23  */
24 
25 /**
26  * @file
27  * Motion estimation.
28  */
29 
30 #include <stdlib.h>
31 #include <stdio.h>
32 #include <limits.h>
33 
34 #include "avcodec.h"
35 #include "internal.h"
36 #include "mathops.h"
37 #include "motion_est.h"
38 #include "mpegutils.h"
39 #include "mpegvideo.h"
40 
41 #define P_LEFT P[1]
42 #define P_TOP P[2]
43 #define P_TOPRIGHT P[3]
44 #define P_MEDIAN P[4]
45 #define P_MV1 P[9]
46 
47 #define ME_MAP_SHIFT 3
48 #define ME_MAP_MV_BITS 11
49 
51  int *mx_ptr, int *my_ptr, int dmin,
52  int src_index, int ref_index,
53  int size, int h);
54 
55 static inline unsigned update_map_generation(MotionEstContext *c)
56 {
57  c->map_generation+= 1<<(ME_MAP_MV_BITS*2);
58  if(c->map_generation==0){
59  c->map_generation= 1<<(ME_MAP_MV_BITS*2);
60  memset(c->map, 0, sizeof(uint32_t)*ME_MAP_SIZE);
61  }
62  return c->map_generation;
63 }
64 
65 /* shape adaptive search stuff */
66 typedef struct Minima{
67  int height;
68  int x, y;
69  int checked;
70 }Minima;
71 
72 static int minima_cmp(const void *a, const void *b){
73  const Minima *da = (const Minima *) a;
74  const Minima *db = (const Minima *) b;
75 
76  return da->height - db->height;
77 }
78 
79 #define FLAG_QPEL 1 //must be 1
80 #define FLAG_CHROMA 2
81 #define FLAG_DIRECT 4
82 
83 static inline void init_ref(MotionEstContext *c, uint8_t *src[3], uint8_t *ref[3], uint8_t *ref2[3], int x, int y, int ref_index){
84  const int offset[3]= {
85  y*c-> stride + x,
86  ((y*c->uvstride + x)>>1),
87  ((y*c->uvstride + x)>>1),
88  };
89  int i;
90  for(i=0; i<3; i++){
91  c->src[0][i]= src [i] + offset[i];
92  c->ref[0][i]= ref [i] + offset[i];
93  }
94  if(ref_index){
95  for(i=0; i<3; i++){
96  c->ref[ref_index][i]= ref2[i] + offset[i];
97  }
98  }
99 }
100 
101 static int get_flags(MotionEstContext *c, int direct, int chroma){
102  return ((c->avctx->flags&AV_CODEC_FLAG_QPEL) ? FLAG_QPEL : 0)
103  + (direct ? FLAG_DIRECT : 0)
104  + (chroma ? FLAG_CHROMA : 0);
105 }
106 
107 static av_always_inline int cmp_direct_inline(MpegEncContext *s, const int x, const int y, const int subx, const int suby,
108  const int size, const int h, int ref_index, int src_index,
109  me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, int qpel){
110  MotionEstContext * const c= &s->me;
111  const int stride= c->stride;
112  const int hx= subx + (x<<(1+qpel));
113  const int hy= suby + (y<<(1+qpel));
114  uint8_t * const * const ref= c->ref[ref_index];
115  uint8_t * const * const src= c->src[src_index];
116  int d;
117  //FIXME check chroma 4mv, (no crashes ...)
118  av_assert2(x >= c->xmin && hx <= c->xmax<<(qpel+1) && y >= c->ymin && hy <= c->ymax<<(qpel+1));
119  if(x >= c->xmin && hx <= c->xmax<<(qpel+1) && y >= c->ymin && hy <= c->ymax<<(qpel+1)){
120  const int time_pp= s->pp_time;
121  const int time_pb= s->pb_time;
122  const int mask= 2*qpel+1;
123  if(s->mv_type==MV_TYPE_8X8){
124  int i;
125  for(i=0; i<4; i++){
126  int fx = c->direct_basis_mv[i][0] + hx;
127  int fy = c->direct_basis_mv[i][1] + hy;
128  int bx = hx ? fx - c->co_located_mv[i][0] : c->co_located_mv[i][0]*(time_pb - time_pp)/time_pp + ((i &1)<<(qpel+4));
129  int by = hy ? fy - c->co_located_mv[i][1] : c->co_located_mv[i][1]*(time_pb - time_pp)/time_pp + ((i>>1)<<(qpel+4));
130  int fxy= (fx&mask) + ((fy&mask)<<(qpel+1));
131  int bxy= (bx&mask) + ((by&mask)<<(qpel+1));
132 
133  uint8_t *dst= c->temp + 8*(i&1) + 8*stride*(i>>1);
134  if(qpel){
135  c->qpel_put[1][fxy](dst, ref[0] + (fx>>2) + (fy>>2)*stride, stride);
136  c->qpel_avg[1][bxy](dst, ref[8] + (bx>>2) + (by>>2)*stride, stride);
137  }else{
138  c->hpel_put[1][fxy](dst, ref[0] + (fx>>1) + (fy>>1)*stride, stride, 8);
139  c->hpel_avg[1][bxy](dst, ref[8] + (bx>>1) + (by>>1)*stride, stride, 8);
140  }
141  }
142  }else{
143  int fx = c->direct_basis_mv[0][0] + hx;
144  int fy = c->direct_basis_mv[0][1] + hy;
145  int bx = hx ? fx - c->co_located_mv[0][0] : (c->co_located_mv[0][0]*(time_pb - time_pp)/time_pp);
146  int by = hy ? fy - c->co_located_mv[0][1] : (c->co_located_mv[0][1]*(time_pb - time_pp)/time_pp);
147  int fxy= (fx&mask) + ((fy&mask)<<(qpel+1));
148  int bxy= (bx&mask) + ((by&mask)<<(qpel+1));
149 
150  if(qpel){
151  c->qpel_put[1][fxy](c->temp , ref[0] + (fx>>2) + (fy>>2)*stride , stride);
152  c->qpel_put[1][fxy](c->temp + 8 , ref[0] + (fx>>2) + (fy>>2)*stride + 8 , stride);
153  c->qpel_put[1][fxy](c->temp + 8*stride, ref[0] + (fx>>2) + (fy>>2)*stride + 8*stride, stride);
154  c->qpel_put[1][fxy](c->temp + 8 + 8*stride, ref[0] + (fx>>2) + (fy>>2)*stride + 8 + 8*stride, stride);
155  c->qpel_avg[1][bxy](c->temp , ref[8] + (bx>>2) + (by>>2)*stride , stride);
156  c->qpel_avg[1][bxy](c->temp + 8 , ref[8] + (bx>>2) + (by>>2)*stride + 8 , stride);
157  c->qpel_avg[1][bxy](c->temp + 8*stride, ref[8] + (bx>>2) + (by>>2)*stride + 8*stride, stride);
158  c->qpel_avg[1][bxy](c->temp + 8 + 8*stride, ref[8] + (bx>>2) + (by>>2)*stride + 8 + 8*stride, stride);
159  }else{
160  av_assert2((fx>>1) + 16*s->mb_x >= -16);
161  av_assert2((fy>>1) + 16*s->mb_y >= -16);
162  av_assert2((fx>>1) + 16*s->mb_x <= s->width);
163  av_assert2((fy>>1) + 16*s->mb_y <= s->height);
164  av_assert2((bx>>1) + 16*s->mb_x >= -16);
165  av_assert2((by>>1) + 16*s->mb_y >= -16);
166  av_assert2((bx>>1) + 16*s->mb_x <= s->width);
167  av_assert2((by>>1) + 16*s->mb_y <= s->height);
168 
169  c->hpel_put[0][fxy](c->temp, ref[0] + (fx>>1) + (fy>>1)*stride, stride, 16);
170  c->hpel_avg[0][bxy](c->temp, ref[8] + (bx>>1) + (by>>1)*stride, stride, 16);
171  }
172  }
173  d = cmp_func(s, c->temp, src[0], stride, 16);
174  }else
175  d= 256*256*256*32;
176  return d;
177 }
178 
179 static av_always_inline int cmp_inline(MpegEncContext *s, const int x, const int y, const int subx, const int suby,
180  const int size, const int h, int ref_index, int src_index,
181  me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, int qpel, int chroma){
182  MotionEstContext * const c= &s->me;
183  const int stride= c->stride;
184  const int uvstride= c->uvstride;
185  const int dxy= subx + (suby<<(1+qpel)); //FIXME log2_subpel?
186  const int hx= subx + x*(1<<(1+qpel));
187  const int hy= suby + y*(1<<(1+qpel));
188  uint8_t * const * const ref= c->ref[ref_index];
189  uint8_t * const * const src= c->src[src_index];
190  int d;
191  //FIXME check chroma 4mv, (no crashes ...)
192  int uvdxy; /* no, it might not be used uninitialized */
193  if(dxy){
194  if(qpel){
195  if (h << size == 16) {
196  c->qpel_put[size][dxy](c->temp, ref[0] + x + y*stride, stride); //FIXME prototype (add h)
197  } else if (size == 0 && h == 8) {
198  c->qpel_put[1][dxy](c->temp , ref[0] + x + y*stride , stride);
199  c->qpel_put[1][dxy](c->temp + 8, ref[0] + x + y*stride + 8, stride);
200  } else
201  av_assert2(0);
202  if(chroma){
203  int cx= hx/2;
204  int cy= hy/2;
205  cx= (cx>>1)|(cx&1);
206  cy= (cy>>1)|(cy&1);
207  uvdxy= (cx&1) + 2*(cy&1);
208  // FIXME x/y wrong, but MPEG-4 qpel is sick anyway, we should drop as much of it as possible in favor for H.264
209  }
210  }else{
211  c->hpel_put[size][dxy](c->temp, ref[0] + x + y*stride, stride, h);
212  if(chroma)
213  uvdxy= dxy | (x&1) | (2*(y&1));
214  }
215  d = cmp_func(s, c->temp, src[0], stride, h);
216  }else{
217  d = cmp_func(s, src[0], ref[0] + x + y*stride, stride, h);
218  if(chroma)
219  uvdxy= (x&1) + 2*(y&1);
220  }
221  if(chroma){
222  uint8_t * const uvtemp= c->temp + 16*stride;
223  c->hpel_put[size+1][uvdxy](uvtemp , ref[1] + (x>>1) + (y>>1)*uvstride, uvstride, h>>1);
224  c->hpel_put[size+1][uvdxy](uvtemp+8, ref[2] + (x>>1) + (y>>1)*uvstride, uvstride, h>>1);
225  d += chroma_cmp_func(s, uvtemp , src[1], uvstride, h>>1);
226  d += chroma_cmp_func(s, uvtemp+8, src[2], uvstride, h>>1);
227  }
228  return d;
229 }
230 
231 static int cmp_simple(MpegEncContext *s, const int x, const int y,
232  int ref_index, int src_index,
233  me_cmp_func cmp_func, me_cmp_func chroma_cmp_func){
234  return cmp_inline(s,x,y,0,0,0,16,ref_index,src_index, cmp_func, chroma_cmp_func, 0, 0);
235 }
236 
237 static int cmp_fpel_internal(MpegEncContext *s, const int x, const int y,
238  const int size, const int h, int ref_index, int src_index,
239  me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags){
240  if(flags&FLAG_DIRECT){
241  return cmp_direct_inline(s,x,y,0,0,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, flags&FLAG_QPEL);
242  }else{
243  return cmp_inline(s,x,y,0,0,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, 0, flags&FLAG_CHROMA);
244  }
245 }
246 
247 static int cmp_internal(MpegEncContext *s, const int x, const int y, const int subx, const int suby,
248  const int size, const int h, int ref_index, int src_index,
249  me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags){
250  if(flags&FLAG_DIRECT){
251  return cmp_direct_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, flags&FLAG_QPEL);
252  }else{
253  return cmp_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, flags&FLAG_QPEL, flags&FLAG_CHROMA);
254  }
255 }
256 
257 /** @brief compares a block (either a full macroblock or a partition thereof)
258  against a proposed motion-compensated prediction of that block
259  */
260 static av_always_inline int cmp(MpegEncContext *s, const int x, const int y, const int subx, const int suby,
261  const int size, const int h, int ref_index, int src_index,
262  me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags){
265  && flags==0 && h==16 && size==0 && subx==0 && suby==0){
266  return cmp_simple(s,x,y,ref_index,src_index, cmp_func, chroma_cmp_func);
267  }else if(av_builtin_constant_p(subx) && av_builtin_constant_p(suby)
268  && subx==0 && suby==0){
269  return cmp_fpel_internal(s,x,y,size,h,ref_index,src_index, cmp_func, chroma_cmp_func,flags);
270  }else{
271  return cmp_internal(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, flags);
272  }
273 }
274 
275 static int cmp_hpel(MpegEncContext *s, const int x, const int y, const int subx, const int suby,
276  const int size, const int h, int ref_index, int src_index,
277  me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags){
278  if(flags&FLAG_DIRECT){
279  return cmp_direct_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, 0);
280  }else{
281  return cmp_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, 0, flags&FLAG_CHROMA);
282  }
283 }
284 
285 static int cmp_qpel(MpegEncContext *s, const int x, const int y, const int subx, const int suby,
286  const int size, const int h, int ref_index, int src_index,
287  me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags){
288  if(flags&FLAG_DIRECT){
289  return cmp_direct_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, 1);
290  }else{
291  return cmp_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, 1, flags&FLAG_CHROMA);
292  }
293 }
294 
295 #include "motion_est_template.c"
296 
298  ptrdiff_t stride, int h)
299 {
300  return 0;
301 }
302 
303 static void zero_hpel(uint8_t *a, const uint8_t *b, ptrdiff_t stride, int h){
304 }
305 
307  MotionEstContext * const c= &s->me;
308  int cache_size= FFMIN(ME_MAP_SIZE>>ME_MAP_SHIFT, 1<<ME_MAP_SHIFT);
309  int dia_size= FFMAX(FFABS(s->avctx->dia_size)&255, FFABS(s->avctx->pre_dia_size)&255);
310 
312  av_log(s->avctx, AV_LOG_ERROR, "ME_MAP size is too small for SAB diamond\n");
313  return -1;
314  }
315 
316  c->avctx= s->avctx;
317 
318  if(s->codec_id == AV_CODEC_ID_H261)
319  c->avctx->me_sub_cmp = c->avctx->me_cmp;
320 
321  if(cache_size < 2*dia_size && !c->stride){
322  av_log(s->avctx, AV_LOG_INFO, "ME_MAP size may be a little small for the selected diamond size\n");
323  }
324 
326  ff_set_cmp(&s->mecc, s->mecc.me_cmp, c->avctx->me_cmp);
328  ff_set_cmp(&s->mecc, s->mecc.mb_cmp, c->avctx->mb_cmp);
329 
330  c->flags = get_flags(c, 0, c->avctx->me_cmp &FF_CMP_CHROMA);
332  c->mb_flags = get_flags(c, 0, c->avctx->mb_cmp &FF_CMP_CHROMA);
333 
334 /*FIXME s->no_rounding b_type*/
335  if (s->avctx->flags & AV_CODEC_FLAG_QPEL) {
338  if (s->no_rounding)
340  else
342  }else{
345  else if( c->avctx->me_sub_cmp == FF_CMP_SAD
346  && c->avctx-> me_cmp == FF_CMP_SAD
347  && c->avctx-> mb_cmp == FF_CMP_SAD)
348  c->sub_motion_search= sad_hpel_motion_search; // 2050 vs. 2450 cycles
349  else
351  }
352  c->hpel_avg = s->hdsp.avg_pixels_tab;
353  if (s->no_rounding)
355  else
356  c->hpel_put = s->hdsp.put_pixels_tab;
357 
358  if(s->linesize){
359  c->stride = s->linesize;
360  c->uvstride= s->uvlinesize;
361  }else{
362  c->stride = 16*s->mb_width + 32;
363  c->uvstride= 8*s->mb_width + 16;
364  }
365 
366  /* 8x8 fullpel search would need a 4x4 chroma compare, which we do
367  * not have yet, and even if we had, the motion estimation code
368  * does not expect it. */
369  if (s->codec_id != AV_CODEC_ID_SNOW) {
370  if ((c->avctx->me_cmp & FF_CMP_CHROMA) /* && !s->mecc.me_cmp[2] */)
371  s->mecc.me_cmp[2] = zero_cmp;
372  if ((c->avctx->me_sub_cmp & FF_CMP_CHROMA) && !s->mecc.me_sub_cmp[2])
373  s->mecc.me_sub_cmp[2] = zero_cmp;
374  c->hpel_put[2][0]= c->hpel_put[2][1]=
375  c->hpel_put[2][2]= c->hpel_put[2][3]= zero_hpel;
376  }
377 
378  if(s->codec_id == AV_CODEC_ID_H261){
380  }
381 
382  return 0;
383 }
384 
385 #define CHECK_SAD_HALF_MV(suffix, x, y) \
386 {\
387  d = s->mecc.pix_abs[size][(x ? 1 : 0) + (y ? 2 : 0)](NULL, pix, ptr + ((x) >> 1), stride, h); \
388  d += (mv_penalty[pen_x + x] + mv_penalty[pen_y + y])*penalty_factor;\
389  COPY3_IF_LT(dminh, d, dx, x, dy, y)\
390 }
391 
393  int *mx_ptr, int *my_ptr, int dmin,
394  int src_index, int ref_index,
395  int size, int h)
396 {
397  MotionEstContext * const c= &s->me;
398  const int penalty_factor= c->sub_penalty_factor;
399  int mx, my, dminh;
400  uint8_t *pix, *ptr;
401  int stride= c->stride;
403 
404  av_assert2(c->sub_flags == 0);
405 
406  if(c->skip){
407  *mx_ptr = 0;
408  *my_ptr = 0;
409  return dmin;
410  }
411 
412  pix = c->src[src_index][0];
413 
414  mx = *mx_ptr;
415  my = *my_ptr;
416  ptr = c->ref[ref_index][0] + (my * stride) + mx;
417 
418  dminh = dmin;
419 
420  if (mx > xmin && mx < xmax &&
421  my > ymin && my < ymax) {
422  int dx=0, dy=0;
423  int d, pen_x, pen_y;
424  const int index= my*(1<<ME_MAP_SHIFT) + mx;
425  const int t= score_map[(index-(1<<ME_MAP_SHIFT))&(ME_MAP_SIZE-1)];
426  const int l= score_map[(index- 1 )&(ME_MAP_SIZE-1)];
427  const int r= score_map[(index+ 1 )&(ME_MAP_SIZE-1)];
428  const int b= score_map[(index+(1<<ME_MAP_SHIFT))&(ME_MAP_SIZE-1)];
429  mx += mx;
430  my += my;
431 
432 
433  pen_x= pred_x + mx;
434  pen_y= pred_y + my;
435 
436  ptr-= stride;
437  if(t<=b){
438  CHECK_SAD_HALF_MV(y2 , 0, -1)
439  if(l<=r){
440  CHECK_SAD_HALF_MV(xy2, -1, -1)
441  if(t+r<=b+l){
442  CHECK_SAD_HALF_MV(xy2, +1, -1)
443  ptr+= stride;
444  }else{
445  ptr+= stride;
446  CHECK_SAD_HALF_MV(xy2, -1, +1)
447  }
448  CHECK_SAD_HALF_MV(x2 , -1, 0)
449  }else{
450  CHECK_SAD_HALF_MV(xy2, +1, -1)
451  if(t+l<=b+r){
452  CHECK_SAD_HALF_MV(xy2, -1, -1)
453  ptr+= stride;
454  }else{
455  ptr+= stride;
456  CHECK_SAD_HALF_MV(xy2, +1, +1)
457  }
458  CHECK_SAD_HALF_MV(x2 , +1, 0)
459  }
460  }else{
461  if(l<=r){
462  if(t+l<=b+r){
463  CHECK_SAD_HALF_MV(xy2, -1, -1)
464  ptr+= stride;
465  }else{
466  ptr+= stride;
467  CHECK_SAD_HALF_MV(xy2, +1, +1)
468  }
469  CHECK_SAD_HALF_MV(x2 , -1, 0)
470  CHECK_SAD_HALF_MV(xy2, -1, +1)
471  }else{
472  if(t+r<=b+l){
473  CHECK_SAD_HALF_MV(xy2, +1, -1)
474  ptr+= stride;
475  }else{
476  ptr+= stride;
477  CHECK_SAD_HALF_MV(xy2, -1, +1)
478  }
479  CHECK_SAD_HALF_MV(x2 , +1, 0)
480  CHECK_SAD_HALF_MV(xy2, +1, +1)
481  }
482  CHECK_SAD_HALF_MV(y2 , 0, +1)
483  }
484  mx+=dx;
485  my+=dy;
486 
487  }else{
488  mx += mx;
489  my += my;
490  }
491 
492  *mx_ptr = mx;
493  *my_ptr = my;
494  return dminh;
495 }
496 
497 static inline void set_p_mv_tables(MpegEncContext * s, int mx, int my, int mv4)
498 {
499  const int xy= s->mb_x + s->mb_y*s->mb_stride;
500 
501  s->p_mv_table[xy][0] = mx;
502  s->p_mv_table[xy][1] = my;
503 
504  /* has already been set to the 4 MV if 4MV is done */
505  if(mv4){
506  int mot_xy= s->block_index[0];
507 
508  s->current_picture.motion_val[0][mot_xy ][0] = mx;
509  s->current_picture.motion_val[0][mot_xy ][1] = my;
510  s->current_picture.motion_val[0][mot_xy + 1][0] = mx;
511  s->current_picture.motion_val[0][mot_xy + 1][1] = my;
512 
513  mot_xy += s->b8_stride;
514  s->current_picture.motion_val[0][mot_xy ][0] = mx;
515  s->current_picture.motion_val[0][mot_xy ][1] = my;
516  s->current_picture.motion_val[0][mot_xy + 1][0] = mx;
517  s->current_picture.motion_val[0][mot_xy + 1][1] = my;
518  }
519 }
520 
521 /**
522  * get fullpel ME search limits.
523  */
524 static inline void get_limits(MpegEncContext *s, int x, int y)
525 {
526  MotionEstContext * const c= &s->me;
527  int range= c->avctx->me_range >> (1 + !!(c->flags&FLAG_QPEL));
528  int max_range = MAX_MV >> (1 + !!(c->flags&FLAG_QPEL));
529 /*
530  if(c->avctx->me_range) c->range= c->avctx->me_range >> 1;
531  else c->range= 16;
532 */
533  if (s->unrestricted_mv) {
534  c->xmin = - x - 16;
535  c->ymin = - y - 16;
536  c->xmax = - x + s->width;
537  c->ymax = - y + s->height;
538  } else if (s->out_format == FMT_H261){
539  // Search range of H.261 is different from other codec standards
540  c->xmin = (x > 15) ? - 15 : 0;
541  c->ymin = (y > 15) ? - 15 : 0;
542  c->xmax = (x < s->mb_width * 16 - 16) ? 15 : 0;
543  c->ymax = (y < s->mb_height * 16 - 16) ? 15 : 0;
544  } else {
545  c->xmin = - x;
546  c->ymin = - y;
547  c->xmax = - x + s->mb_width *16 - 16;
548  c->ymax = - y + s->mb_height*16 - 16;
549  }
550  if(!range || range > max_range)
551  range = max_range;
552  if(range){
553  c->xmin = FFMAX(c->xmin,-range);
554  c->xmax = FFMIN(c->xmax, range);
555  c->ymin = FFMAX(c->ymin,-range);
556  c->ymax = FFMIN(c->ymax, range);
557  }
558 }
559 
560 static inline void init_mv4_ref(MotionEstContext *c){
561  const int stride= c->stride;
562 
563  c->ref[1][0] = c->ref[0][0] + 8;
564  c->ref[2][0] = c->ref[0][0] + 8*stride;
565  c->ref[3][0] = c->ref[2][0] + 8;
566  c->src[1][0] = c->src[0][0] + 8;
567  c->src[2][0] = c->src[0][0] + 8*stride;
568  c->src[3][0] = c->src[2][0] + 8;
569 }
570 
571 static inline int h263_mv4_search(MpegEncContext *s, int mx, int my, int shift)
572 {
573  MotionEstContext * const c= &s->me;
574  const int size= 1;
575  const int h=8;
576  int block;
577  int P[10][2];
578  int dmin_sum=0, mx4_sum=0, my4_sum=0, i;
579  int same=1;
580  const int stride= c->stride;
582  int safety_clipping= s->unrestricted_mv && (s->width&15) && (s->height&15);
583 
584  init_mv4_ref(c);
585 
586  for(block=0; block<4; block++){
587  int mx4, my4;
588  int pred_x4, pred_y4;
589  int dmin4;
590  static const int off[4]= {2, 1, 1, -1};
591  const int mot_stride = s->b8_stride;
592  const int mot_xy = s->block_index[block];
593 
594  if(safety_clipping){
595  c->xmax = - 16*s->mb_x + s->width - 8*(block &1);
596  c->ymax = - 16*s->mb_y + s->height - 8*(block>>1);
597  }
598 
599  P_LEFT[0] = s->current_picture.motion_val[0][mot_xy - 1][0];
600  P_LEFT[1] = s->current_picture.motion_val[0][mot_xy - 1][1];
601 
602  if(P_LEFT[0] > (c->xmax<<shift)) P_LEFT[0] = (c->xmax<<shift);
603 
604  /* special case for first line */
605  if (s->first_slice_line && block<2) {
606  c->pred_x= pred_x4= P_LEFT[0];
607  c->pred_y= pred_y4= P_LEFT[1];
608  } else {
609  P_TOP[0] = s->current_picture.motion_val[0][mot_xy - mot_stride ][0];
610  P_TOP[1] = s->current_picture.motion_val[0][mot_xy - mot_stride ][1];
611  P_TOPRIGHT[0] = s->current_picture.motion_val[0][mot_xy - mot_stride + off[block]][0];
612  P_TOPRIGHT[1] = s->current_picture.motion_val[0][mot_xy - mot_stride + off[block]][1];
613  if(P_TOP[1] > (c->ymax<<shift)) P_TOP[1] = (c->ymax<<shift);
614  if(P_TOPRIGHT[0] < (c->xmin<<shift)) P_TOPRIGHT[0]= (c->xmin<<shift);
615  if(P_TOPRIGHT[0] > (c->xmax<<shift)) P_TOPRIGHT[0]= (c->xmax<<shift);
616  if(P_TOPRIGHT[1] > (c->ymax<<shift)) P_TOPRIGHT[1]= (c->ymax<<shift);
617 
618  P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
619  P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
620 
621  c->pred_x= pred_x4 = P_MEDIAN[0];
622  c->pred_y= pred_y4 = P_MEDIAN[1];
623  }
624  P_MV1[0]= mx;
625  P_MV1[1]= my;
626  if(safety_clipping)
627  for(i=1; i<10; i++){
628  if (s->first_slice_line && block<2 && i>1 && i<9)
629  continue;
630  if (i>4 && i<9)
631  continue;
632  if(P[i][0] > (c->xmax<<shift)) P[i][0]= (c->xmax<<shift);
633  if(P[i][1] > (c->ymax<<shift)) P[i][1]= (c->ymax<<shift);
634  }
635 
636  dmin4 = epzs_motion_search4(s, &mx4, &my4, P, block, block, s->p_mv_table, (1<<16)>>shift);
637 
638  dmin4= c->sub_motion_search(s, &mx4, &my4, dmin4, block, block, size, h);
639 
640  if (s->mecc.me_sub_cmp[0] != s->mecc.mb_cmp[0]) {
641  int dxy;
642  const int offset= ((block&1) + (block>>1)*stride)*8;
643  uint8_t *dest_y = c->scratchpad + offset;
644  if(s->quarter_sample){
645  uint8_t *ref= c->ref[block][0] + (mx4>>2) + (my4>>2)*stride;
646  dxy = ((my4 & 3) << 2) | (mx4 & 3);
647 
648  if(s->no_rounding)
649  s->qdsp.put_no_rnd_qpel_pixels_tab[1][dxy](dest_y, ref, stride);
650  else
651  s->qdsp.put_qpel_pixels_tab[1][dxy](dest_y, ref, stride);
652  }else{
653  uint8_t *ref= c->ref[block][0] + (mx4>>1) + (my4>>1)*stride;
654  dxy = ((my4 & 1) << 1) | (mx4 & 1);
655 
656  if(s->no_rounding)
657  s->hdsp.put_no_rnd_pixels_tab[1][dxy](dest_y , ref , stride, h);
658  else
659  s->hdsp.put_pixels_tab [1][dxy](dest_y , ref , stride, h);
660  }
661  dmin_sum+= (mv_penalty[mx4-pred_x4] + mv_penalty[my4-pred_y4])*c->mb_penalty_factor;
662  }else
663  dmin_sum+= dmin4;
664 
665  if(s->quarter_sample){
666  mx4_sum+= mx4/2;
667  my4_sum+= my4/2;
668  }else{
669  mx4_sum+= mx4;
670  my4_sum+= my4;
671  }
672 
673  s->current_picture.motion_val[0][s->block_index[block]][0] = mx4;
674  s->current_picture.motion_val[0][s->block_index[block]][1] = my4;
675 
676  if(mx4 != mx || my4 != my) same=0;
677  }
678 
679  if(same)
680  return INT_MAX;
681 
682  if (s->mecc.me_sub_cmp[0] != s->mecc.mb_cmp[0]) {
683  dmin_sum += s->mecc.mb_cmp[0](s,
684  s->new_picture.f->data[0] +
685  s->mb_x * 16 + s->mb_y * 16 * stride,
686  c->scratchpad, stride, 16);
687  }
688 
689  if(c->avctx->mb_cmp&FF_CMP_CHROMA){
690  int dxy;
691  int mx, my;
692  int offset;
693 
694  mx= ff_h263_round_chroma(mx4_sum);
695  my= ff_h263_round_chroma(my4_sum);
696  dxy = ((my & 1) << 1) | (mx & 1);
697 
698  offset= (s->mb_x*8 + (mx>>1)) + (s->mb_y*8 + (my>>1))*s->uvlinesize;
699 
700  if(s->no_rounding){
701  s->hdsp.put_no_rnd_pixels_tab[1][dxy](c->scratchpad , s->last_picture.f->data[1] + offset, s->uvlinesize, 8);
702  s->hdsp.put_no_rnd_pixels_tab[1][dxy](c->scratchpad + 8, s->last_picture.f->data[2] + offset, s->uvlinesize, 8);
703  }else{
704  s->hdsp.put_pixels_tab [1][dxy](c->scratchpad , s->last_picture.f->data[1] + offset, s->uvlinesize, 8);
705  s->hdsp.put_pixels_tab [1][dxy](c->scratchpad + 8, s->last_picture.f->data[2] + offset, s->uvlinesize, 8);
706  }
707 
708  dmin_sum += s->mecc.mb_cmp[1](s, s->new_picture.f->data[1] + s->mb_x * 8 + s->mb_y * 8 * s->uvlinesize, c->scratchpad, s->uvlinesize, 8);
709  dmin_sum += s->mecc.mb_cmp[1](s, s->new_picture.f->data[2] + s->mb_x * 8 + s->mb_y * 8 * s->uvlinesize, c->scratchpad + 8, s->uvlinesize, 8);
710  }
711 
712  c->pred_x= mx;
713  c->pred_y= my;
714 
715  switch(c->avctx->mb_cmp&0xFF){
716  /*case FF_CMP_SSE:
717  return dmin_sum+ 32*s->qscale*s->qscale;*/
718  case FF_CMP_RD:
719  return dmin_sum;
720  default:
721  return dmin_sum+ 11*c->mb_penalty_factor;
722  }
723 }
724 
725 static inline void init_interlaced_ref(MpegEncContext *s, int ref_index){
726  MotionEstContext * const c= &s->me;
727 
728  c->ref[1+ref_index][0] = c->ref[0+ref_index][0] + s->linesize;
729  c->src[1][0] = c->src[0][0] + s->linesize;
730  if(c->flags & FLAG_CHROMA){
731  c->ref[1+ref_index][1] = c->ref[0+ref_index][1] + s->uvlinesize;
732  c->ref[1+ref_index][2] = c->ref[0+ref_index][2] + s->uvlinesize;
733  c->src[1][1] = c->src[0][1] + s->uvlinesize;
734  c->src[1][2] = c->src[0][2] + s->uvlinesize;
735  }
736 }
737 
738 static int interlaced_search(MpegEncContext *s, int ref_index,
739  int16_t (*mv_tables[2][2])[2], uint8_t *field_select_tables[2], int mx, int my, int user_field_select)
740 {
741  MotionEstContext * const c= &s->me;
742  const int size=0;
743  const int h=8;
744  int block;
745  int P[10][2];
747  int same=1;
748  const int stride= 2*s->linesize;
749  int dmin_sum= 0;
750  const int mot_stride= s->mb_stride;
751  const int xy= s->mb_x + s->mb_y*mot_stride;
752 
753  c->ymin>>=1;
754  c->ymax>>=1;
755  c->stride<<=1;
756  c->uvstride<<=1;
757  init_interlaced_ref(s, ref_index);
758 
759  for(block=0; block<2; block++){
760  int field_select;
761  int best_dmin= INT_MAX;
762  int best_field= -1;
763 
764  for(field_select=0; field_select<2; field_select++){
765  int dmin, mx_i, my_i;
766  int16_t (*mv_table)[2]= mv_tables[block][field_select];
767 
768  if(user_field_select){
769  av_assert1(field_select==0 || field_select==1);
770  av_assert1(field_select_tables[block][xy]==0 || field_select_tables[block][xy]==1);
771  if(field_select_tables[block][xy] != field_select)
772  continue;
773  }
774 
775  P_LEFT[0] = mv_table[xy - 1][0];
776  P_LEFT[1] = mv_table[xy - 1][1];
777  if(P_LEFT[0] > (c->xmax<<1)) P_LEFT[0] = (c->xmax<<1);
778 
779  c->pred_x= P_LEFT[0];
780  c->pred_y= P_LEFT[1];
781 
782  if(!s->first_slice_line){
783  P_TOP[0] = mv_table[xy - mot_stride][0];
784  P_TOP[1] = mv_table[xy - mot_stride][1];
785  P_TOPRIGHT[0] = mv_table[xy - mot_stride + 1][0];
786  P_TOPRIGHT[1] = mv_table[xy - mot_stride + 1][1];
787  if(P_TOP[1] > (c->ymax<<1)) P_TOP[1] = (c->ymax<<1);
788  if(P_TOPRIGHT[0] < (c->xmin<<1)) P_TOPRIGHT[0]= (c->xmin<<1);
789  if(P_TOPRIGHT[0] > (c->xmax<<1)) P_TOPRIGHT[0]= (c->xmax<<1);
790  if(P_TOPRIGHT[1] > (c->ymax<<1)) P_TOPRIGHT[1]= (c->ymax<<1);
791 
792  P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
793  P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
794  }
795  P_MV1[0]= mx; //FIXME not correct if block != field_select
796  P_MV1[1]= my / 2;
797 
798  dmin = epzs_motion_search2(s, &mx_i, &my_i, P, block, field_select+ref_index, mv_table, (1<<16)>>1);
799 
800  dmin= c->sub_motion_search(s, &mx_i, &my_i, dmin, block, field_select+ref_index, size, h);
801 
802  mv_table[xy][0]= mx_i;
803  mv_table[xy][1]= my_i;
804 
805  if (s->mecc.me_sub_cmp[0] != s->mecc.mb_cmp[0]) {
806  int dxy;
807 
808  //FIXME chroma ME
809  uint8_t *ref= c->ref[field_select+ref_index][0] + (mx_i>>1) + (my_i>>1)*stride;
810  dxy = ((my_i & 1) << 1) | (mx_i & 1);
811 
812  if(s->no_rounding){
814  }else{
815  s->hdsp.put_pixels_tab [size][dxy](c->scratchpad, ref , stride, h);
816  }
817  dmin = s->mecc.mb_cmp[size](s, c->src[block][0], c->scratchpad, stride, h);
818  dmin+= (mv_penalty[mx_i-c->pred_x] + mv_penalty[my_i-c->pred_y] + 1)*c->mb_penalty_factor;
819  }else
820  dmin+= c->mb_penalty_factor; //field_select bits
821 
822  dmin += field_select != block; //slightly prefer same field
823 
824  if(dmin < best_dmin){
825  best_dmin= dmin;
826  best_field= field_select;
827  }
828  }
829  {
830  int16_t (*mv_table)[2]= mv_tables[block][best_field];
831 
832  if(mv_table[xy][0] != mx) same=0; //FIXME check if these checks work and are any good at all
833  if(mv_table[xy][1]&1) same=0;
834  if(mv_table[xy][1]*2 != my) same=0;
835  if(best_field != block) same=0;
836  }
837 
838  field_select_tables[block][xy]= best_field;
839  dmin_sum += best_dmin;
840  }
841 
842  c->ymin<<=1;
843  c->ymax<<=1;
844  c->stride>>=1;
845  c->uvstride>>=1;
846 
847  if(same)
848  return INT_MAX;
849 
850  switch(c->avctx->mb_cmp&0xFF){
851  /*case FF_CMP_SSE:
852  return dmin_sum+ 32*s->qscale*s->qscale;*/
853  case FF_CMP_RD:
854  return dmin_sum;
855  default:
856  return dmin_sum+ 11*c->mb_penalty_factor;
857  }
858 }
859 
860 static inline int get_penalty_factor(int lambda, int lambda2, int type){
861  switch(type&0xFF){
862  default:
863  case FF_CMP_SAD:
864  return lambda>>FF_LAMBDA_SHIFT;
865  case FF_CMP_DCT:
866  return (3*lambda)>>(FF_LAMBDA_SHIFT+1);
867  case FF_CMP_W53:
868  return (4*lambda)>>(FF_LAMBDA_SHIFT);
869  case FF_CMP_W97:
870  return (2*lambda)>>(FF_LAMBDA_SHIFT);
871  case FF_CMP_SATD:
872  case FF_CMP_DCT264:
873  return (2*lambda)>>FF_LAMBDA_SHIFT;
874  case FF_CMP_RD:
875  case FF_CMP_PSNR:
876  case FF_CMP_SSE:
877  case FF_CMP_NSSE:
878  return lambda2>>FF_LAMBDA_SHIFT;
879  case FF_CMP_BIT:
880  case FF_CMP_MEDIAN_SAD:
881  return 1;
882  }
883 }
884 
886  int mb_x, int mb_y)
887 {
888  MotionEstContext * const c= &s->me;
889  uint8_t *pix, *ppix;
890  int sum, mx = 0, my = 0, dmin = 0;
891  int varc; ///< the variance of the block (sum of squared (p[y][x]-average))
892  int vard; ///< sum of squared differences with the estimated motion vector
893  int P[10][2];
894  const int shift= 1+s->quarter_sample;
895  int mb_type=0;
896  Picture * const pic= &s->current_picture;
897 
898  init_ref(c, s->new_picture.f->data, s->last_picture.f->data, NULL, 16*mb_x, 16*mb_y, 0);
899 
900  av_assert0(s->quarter_sample==0 || s->quarter_sample==1);
901  av_assert0(s->linesize == c->stride);
902  av_assert0(s->uvlinesize == c->uvstride);
903 
908 
909  get_limits(s, 16*mb_x, 16*mb_y);
910  c->skip=0;
911 
912  /* intra / predictive decision */
913  pix = c->src[0][0];
914  sum = s->mpvencdsp.pix_sum(pix, s->linesize);
915  varc = s->mpvencdsp.pix_norm1(pix, s->linesize) -
916  (((unsigned) sum * sum) >> 8) + 500;
917 
918  pic->mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
919  pic->mb_var [s->mb_stride * mb_y + mb_x] = (varc+128)>>8;
920  c->mb_var_sum_temp += (varc+128)>>8;
921 
922  if (s->motion_est != FF_ME_ZERO) {
923  const int mot_stride = s->b8_stride;
924  const int mot_xy = s->block_index[0];
925 
926  P_LEFT[0] = s->current_picture.motion_val[0][mot_xy - 1][0];
927  P_LEFT[1] = s->current_picture.motion_val[0][mot_xy - 1][1];
928 
929  if (P_LEFT[0] > (c->xmax << shift))
930  P_LEFT[0] = c->xmax << shift;
931 
932  if (!s->first_slice_line) {
933  P_TOP[0] = s->current_picture.motion_val[0][mot_xy - mot_stride ][0];
934  P_TOP[1] = s->current_picture.motion_val[0][mot_xy - mot_stride ][1];
935  P_TOPRIGHT[0] = s->current_picture.motion_val[0][mot_xy - mot_stride + 2][0];
936  P_TOPRIGHT[1] = s->current_picture.motion_val[0][mot_xy - mot_stride + 2][1];
937  if (P_TOP[1] > (c->ymax << shift))
938  P_TOP[1] = c->ymax << shift;
939  if (P_TOPRIGHT[0] < (c->xmin * (1 << shift)))
940  P_TOPRIGHT[0] = c->xmin * (1 << shift);
941  if (P_TOPRIGHT[1] > (c->ymax * (1 << shift)))
942  P_TOPRIGHT[1] = c->ymax * (1 << shift);
943 
944  P_MEDIAN[0] = mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
945  P_MEDIAN[1] = mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
946 
947  if (s->out_format == FMT_H263) {
948  c->pred_x = P_MEDIAN[0];
949  c->pred_y = P_MEDIAN[1];
950  } else { /* MPEG-1 at least */
951  c->pred_x = P_LEFT[0];
952  c->pred_y = P_LEFT[1];
953  }
954  } else {
955  c->pred_x = P_LEFT[0];
956  c->pred_y = P_LEFT[1];
957  }
958  dmin = ff_epzs_motion_search(s, &mx, &my, P, 0, 0, s->p_mv_table, (1<<16)>>shift, 0, 16);
959  }
960 
961  /* At this point (mx,my) are full-pell and the relative displacement */
962  ppix = c->ref[0][0] + (my * s->linesize) + mx;
963 
964  vard = s->mecc.sse[0](NULL, pix, ppix, s->linesize, 16);
965 
966  pic->mc_mb_var[s->mb_stride * mb_y + mb_x] = (vard+128)>>8;
967  c->mc_mb_var_sum_temp += (vard+128)>>8;
968 
970  int p_score= FFMIN(vard, varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*100);
971  int i_score= varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*20;
972  c->scene_change_score+= ff_sqrt(p_score) - ff_sqrt(i_score);
973 
974  if (vard*2 + 200*256 > varc)
975  mb_type|= CANDIDATE_MB_TYPE_INTRA;
976  if (varc*2 + 200*256 > vard || s->qscale > 24){
977 // if (varc*2 + 200*256 + 50*(s->lambda2>>FF_LAMBDA_SHIFT) > vard){
978  mb_type|= CANDIDATE_MB_TYPE_INTER;
979  c->sub_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);
980  if (s->mpv_flags & FF_MPV_FLAG_MV0)
981  if(mx || my)
982  mb_type |= CANDIDATE_MB_TYPE_SKIPPED; //FIXME check difference
983  }else{
984  mx <<=shift;
985  my <<=shift;
986  }
987  if ((s->avctx->flags & AV_CODEC_FLAG_4MV)
988  && !c->skip && varc>50<<8 && vard>10<<8){
989  if(h263_mv4_search(s, mx, my, shift) < INT_MAX)
990  mb_type|=CANDIDATE_MB_TYPE_INTER4V;
991 
992  set_p_mv_tables(s, mx, my, 0);
993  }else
994  set_p_mv_tables(s, mx, my, 1);
996  && !c->skip){ //FIXME varc/d checks
997  if(interlaced_search(s, 0, s->p_field_mv_table, s->p_field_select_table, mx, my, 0) < INT_MAX)
998  mb_type |= CANDIDATE_MB_TYPE_INTER_I;
999  }
1000  }else{
1001  int intra_score, i;
1002  mb_type= CANDIDATE_MB_TYPE_INTER;
1003 
1004  dmin= c->sub_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);
1005  if(c->avctx->me_sub_cmp != c->avctx->mb_cmp && !c->skip)
1006  dmin= get_mb_score(s, mx, my, 0, 0, 0, 16, 1);
1007 
1008  if ((s->avctx->flags & AV_CODEC_FLAG_4MV)
1009  && !c->skip && varc>50<<8 && vard>10<<8){
1010  int dmin4= h263_mv4_search(s, mx, my, shift);
1011  if(dmin4 < dmin){
1012  mb_type= CANDIDATE_MB_TYPE_INTER4V;
1013  dmin=dmin4;
1014  }
1015  }
1017  && !c->skip){ //FIXME varc/d checks
1018  int dmin_i= interlaced_search(s, 0, s->p_field_mv_table, s->p_field_select_table, mx, my, 0);
1019  if(dmin_i < dmin){
1020  mb_type = CANDIDATE_MB_TYPE_INTER_I;
1021  dmin= dmin_i;
1022  }
1023  }
1024 
1025  set_p_mv_tables(s, mx, my, mb_type!=CANDIDATE_MB_TYPE_INTER4V);
1026 
1027  /* get intra luma score */
1028  if((c->avctx->mb_cmp&0xFF)==FF_CMP_SSE){
1029  intra_score= varc - 500;
1030  }else{
1031  unsigned mean = (sum+128)>>8;
1032  mean*= 0x01010101;
1033 
1034  for(i=0; i<16; i++){
1035  *(uint32_t*)(&c->scratchpad[i*s->linesize+ 0]) = mean;
1036  *(uint32_t*)(&c->scratchpad[i*s->linesize+ 4]) = mean;
1037  *(uint32_t*)(&c->scratchpad[i*s->linesize+ 8]) = mean;
1038  *(uint32_t*)(&c->scratchpad[i*s->linesize+12]) = mean;
1039  }
1040 
1041  intra_score= s->mecc.mb_cmp[0](s, c->scratchpad, pix, s->linesize, 16);
1042  }
1043  intra_score += c->mb_penalty_factor*16;
1044 
1045  if(intra_score < dmin){
1046  mb_type= CANDIDATE_MB_TYPE_INTRA;
1047  s->current_picture.mb_type[mb_y*s->mb_stride + mb_x] = CANDIDATE_MB_TYPE_INTRA; //FIXME cleanup
1048  }else
1049  s->current_picture.mb_type[mb_y*s->mb_stride + mb_x] = 0;
1050 
1051  {
1052  int p_score= FFMIN(vard, varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*100);
1053  int i_score= varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*20;
1054  c->scene_change_score+= ff_sqrt(p_score) - ff_sqrt(i_score);
1055  }
1056  }
1057 
1058  s->mb_type[mb_y*s->mb_stride + mb_x]= mb_type;
1059 }
1060 
1062  int mb_x, int mb_y)
1063 {
1064  MotionEstContext * const c= &s->me;
1065  int mx, my, dmin;
1066  int P[10][2];
1067  const int shift= 1+s->quarter_sample;
1068  const int xy= mb_x + mb_y*s->mb_stride;
1069  init_ref(c, s->new_picture.f->data, s->last_picture.f->data, NULL, 16*mb_x, 16*mb_y, 0);
1070 
1071  av_assert0(s->quarter_sample==0 || s->quarter_sample==1);
1072 
1075 
1076  get_limits(s, 16*mb_x, 16*mb_y);
1077  c->skip=0;
1078 
1079  P_LEFT[0] = s->p_mv_table[xy + 1][0];
1080  P_LEFT[1] = s->p_mv_table[xy + 1][1];
1081 
1082  if(P_LEFT[0] < (c->xmin<<shift)) P_LEFT[0] = (c->xmin<<shift);
1083 
1084  /* special case for first line */
1085  if (s->first_slice_line) {
1086  c->pred_x= P_LEFT[0];
1087  c->pred_y= P_LEFT[1];
1088  P_TOP[0]= P_TOPRIGHT[0]= P_MEDIAN[0]=
1089  P_TOP[1]= P_TOPRIGHT[1]= P_MEDIAN[1]= 0; //FIXME
1090  } else {
1091  P_TOP[0] = s->p_mv_table[xy + s->mb_stride ][0];
1092  P_TOP[1] = s->p_mv_table[xy + s->mb_stride ][1];
1093  P_TOPRIGHT[0] = s->p_mv_table[xy + s->mb_stride - 1][0];
1094  P_TOPRIGHT[1] = s->p_mv_table[xy + s->mb_stride - 1][1];
1095  if(P_TOP[1] < (c->ymin<<shift)) P_TOP[1] = (c->ymin<<shift);
1096  if(P_TOPRIGHT[0] > (c->xmax<<shift)) P_TOPRIGHT[0]= (c->xmax<<shift);
1097  if(P_TOPRIGHT[1] < (c->ymin<<shift)) P_TOPRIGHT[1]= (c->ymin<<shift);
1098 
1099  P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
1100  P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
1101 
1102  c->pred_x = P_MEDIAN[0];
1103  c->pred_y = P_MEDIAN[1];
1104  }
1105 
1106  dmin = ff_epzs_motion_search(s, &mx, &my, P, 0, 0, s->p_mv_table, (1<<16)>>shift, 0, 16);
1107 
1108  s->p_mv_table[xy][0] = mx<<shift;
1109  s->p_mv_table[xy][1] = my<<shift;
1110 
1111  return dmin;
1112 }
1113 
1114 static int estimate_motion_b(MpegEncContext *s, int mb_x, int mb_y,
1115  int16_t (*mv_table)[2], int ref_index, int f_code)
1116 {
1117  MotionEstContext * const c= &s->me;
1118  int mx = 0, my = 0, dmin = 0;
1119  int P[10][2];
1120  const int shift= 1+s->quarter_sample;
1121  const int mot_stride = s->mb_stride;
1122  const int mot_xy = mb_y*mot_stride + mb_x;
1123  uint8_t * const mv_penalty= c->mv_penalty[f_code] + MAX_DMV;
1124  int mv_scale;
1125 
1130 
1131  get_limits(s, 16*mb_x, 16*mb_y);
1132 
1133  if (s->motion_est != FF_ME_ZERO) {
1134  P_LEFT[0] = mv_table[mot_xy - 1][0];
1135  P_LEFT[1] = mv_table[mot_xy - 1][1];
1136 
1137  if (P_LEFT[0] > (c->xmax << shift)) P_LEFT[0] = (c->xmax << shift);
1138 
1139  /* special case for first line */
1140  if (!s->first_slice_line) {
1141  P_TOP[0] = mv_table[mot_xy - mot_stride ][0];
1142  P_TOP[1] = mv_table[mot_xy - mot_stride ][1];
1143  P_TOPRIGHT[0] = mv_table[mot_xy - mot_stride + 1][0];
1144  P_TOPRIGHT[1] = mv_table[mot_xy - mot_stride + 1][1];
1145  if (P_TOP[1] > (c->ymax << shift)) P_TOP[1] = (c->ymax << shift);
1146  if (P_TOPRIGHT[0] < (c->xmin << shift)) P_TOPRIGHT[0] = (c->xmin << shift);
1147  if (P_TOPRIGHT[1] > (c->ymax << shift)) P_TOPRIGHT[1] = (c->ymax << shift);
1148 
1149  P_MEDIAN[0] = mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
1150  P_MEDIAN[1] = mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
1151  }
1152  c->pred_x = P_LEFT[0];
1153  c->pred_y = P_LEFT[1];
1154 
1155  if(mv_table == s->b_forw_mv_table){
1156  mv_scale= (s->pb_time<<16) / (s->pp_time<<shift);
1157  }else{
1158  mv_scale= ((s->pb_time - s->pp_time)<<16) / (s->pp_time<<shift);
1159  }
1160 
1161  dmin = ff_epzs_motion_search(s, &mx, &my, P, 0, ref_index, s->p_mv_table, mv_scale, 0, 16);
1162  }
1163 
1164  dmin= c->sub_motion_search(s, &mx, &my, dmin, 0, ref_index, 0, 16);
1165 
1166  if(c->avctx->me_sub_cmp != c->avctx->mb_cmp && !c->skip)
1167  dmin= get_mb_score(s, mx, my, 0, ref_index, 0, 16, 1);
1168 
1169 // s->mb_type[mb_y*s->mb_width + mb_x]= mb_type;
1170  mv_table[mot_xy][0]= mx;
1171  mv_table[mot_xy][1]= my;
1172 
1173  return dmin;
1174 }
1175 
1176 static inline int check_bidir_mv(MpegEncContext * s,
1177  int motion_fx, int motion_fy,
1178  int motion_bx, int motion_by,
1179  int pred_fx, int pred_fy,
1180  int pred_bx, int pred_by,
1181  int size, int h)
1182 {
1183  //FIXME optimize?
1184  //FIXME better f_code prediction (max mv & distance)
1185  //FIXME pointers
1186  MotionEstContext * const c= &s->me;
1187  uint8_t * const mv_penalty_f= c->mv_penalty[s->f_code] + MAX_DMV; // f_code of the prev frame
1188  uint8_t * const mv_penalty_b= c->mv_penalty[s->b_code] + MAX_DMV; // f_code of the prev frame
1189  int stride= c->stride;
1190  uint8_t *dest_y = c->scratchpad;
1191  uint8_t *ptr;
1192  int dxy;
1193  int src_x, src_y;
1194  int fbmin;
1195  uint8_t **src_data= c->src[0];
1196  uint8_t **ref_data= c->ref[0];
1197  uint8_t **ref2_data= c->ref[2];
1198 
1199  if(s->quarter_sample){
1200  dxy = ((motion_fy & 3) << 2) | (motion_fx & 3);
1201  src_x = motion_fx >> 2;
1202  src_y = motion_fy >> 2;
1203 
1204  ptr = ref_data[0] + (src_y * stride) + src_x;
1205  s->qdsp.put_qpel_pixels_tab[0][dxy](dest_y, ptr, stride);
1206 
1207  dxy = ((motion_by & 3) << 2) | (motion_bx & 3);
1208  src_x = motion_bx >> 2;
1209  src_y = motion_by >> 2;
1210 
1211  ptr = ref2_data[0] + (src_y * stride) + src_x;
1212  s->qdsp.avg_qpel_pixels_tab[size][dxy](dest_y, ptr, stride);
1213  }else{
1214  dxy = ((motion_fy & 1) << 1) | (motion_fx & 1);
1215  src_x = motion_fx >> 1;
1216  src_y = motion_fy >> 1;
1217 
1218  ptr = ref_data[0] + (src_y * stride) + src_x;
1219  s->hdsp.put_pixels_tab[size][dxy](dest_y , ptr , stride, h);
1220 
1221  dxy = ((motion_by & 1) << 1) | (motion_bx & 1);
1222  src_x = motion_bx >> 1;
1223  src_y = motion_by >> 1;
1224 
1225  ptr = ref2_data[0] + (src_y * stride) + src_x;
1226  s->hdsp.avg_pixels_tab[size][dxy](dest_y , ptr , stride, h);
1227  }
1228 
1229  fbmin = (mv_penalty_f[motion_fx-pred_fx] + mv_penalty_f[motion_fy-pred_fy])*c->mb_penalty_factor
1230  +(mv_penalty_b[motion_bx-pred_bx] + mv_penalty_b[motion_by-pred_by])*c->mb_penalty_factor
1231  + s->mecc.mb_cmp[size](s, src_data[0], dest_y, stride, h); // FIXME new_pic
1232 
1233  if(c->avctx->mb_cmp&FF_CMP_CHROMA){
1234  }
1235  //FIXME CHROMA !!!
1236 
1237  return fbmin;
1238 }
1239 
1240 /* refine the bidir vectors in hq mode and return the score in both lq & hq mode*/
1241 static inline int bidir_refine(MpegEncContext * s, int mb_x, int mb_y)
1242 {
1243  MotionEstContext * const c= &s->me;
1244  const int mot_stride = s->mb_stride;
1245  const int xy = mb_y *mot_stride + mb_x;
1246  int fbmin;
1247  int pred_fx= s->b_bidir_forw_mv_table[xy-1][0];
1248  int pred_fy= s->b_bidir_forw_mv_table[xy-1][1];
1249  int pred_bx= s->b_bidir_back_mv_table[xy-1][0];
1250  int pred_by= s->b_bidir_back_mv_table[xy-1][1];
1251  int motion_fx= s->b_bidir_forw_mv_table[xy][0]= s->b_forw_mv_table[xy][0];
1252  int motion_fy= s->b_bidir_forw_mv_table[xy][1]= s->b_forw_mv_table[xy][1];
1253  int motion_bx= s->b_bidir_back_mv_table[xy][0]= s->b_back_mv_table[xy][0];
1254  int motion_by= s->b_bidir_back_mv_table[xy][1]= s->b_back_mv_table[xy][1];
1255  const int flags= c->sub_flags;
1256  const int qpel= flags&FLAG_QPEL;
1257  const int shift= 1+qpel;
1258  const int xmin= c->xmin<<shift;
1259  const int ymin= c->ymin<<shift;
1260  const int xmax= c->xmax<<shift;
1261  const int ymax= c->ymax<<shift;
1262 #define HASH(fx,fy,bx,by) ((fx)+17*(fy)+63*(bx)+117*(by))
1263 #define HASH8(fx,fy,bx,by) ((uint8_t)HASH(fx,fy,bx,by))
1264  int hashidx= HASH(motion_fx,motion_fy, motion_bx, motion_by);
1265  uint8_t map[256] = { 0 };
1266 
1267  map[hashidx&255] = 1;
1268 
1269  fbmin= check_bidir_mv(s, motion_fx, motion_fy,
1270  motion_bx, motion_by,
1271  pred_fx, pred_fy,
1272  pred_bx, pred_by,
1273  0, 16);
1274 
1275  if(s->avctx->bidir_refine){
1276  int end;
1277  static const uint8_t limittab[5]={0,8,32,64,80};
1278  const int limit= limittab[s->avctx->bidir_refine];
1279  static const int8_t vect[][4]={
1280 { 0, 0, 0, 1}, { 0, 0, 0,-1}, { 0, 0, 1, 0}, { 0, 0,-1, 0}, { 0, 1, 0, 0}, { 0,-1, 0, 0}, { 1, 0, 0, 0}, {-1, 0, 0, 0},
1281 
1282 { 0, 0, 1, 1}, { 0, 0,-1,-1}, { 0, 1, 1, 0}, { 0,-1,-1, 0}, { 1, 1, 0, 0}, {-1,-1, 0, 0}, { 1, 0, 0, 1}, {-1, 0, 0,-1},
1283 { 0, 1, 0, 1}, { 0,-1, 0,-1}, { 1, 0, 1, 0}, {-1, 0,-1, 0},
1284 { 0, 0,-1, 1}, { 0, 0, 1,-1}, { 0,-1, 1, 0}, { 0, 1,-1, 0}, {-1, 1, 0, 0}, { 1,-1, 0, 0}, { 1, 0, 0,-1}, {-1, 0, 0, 1},
1285 { 0,-1, 0, 1}, { 0, 1, 0,-1}, {-1, 0, 1, 0}, { 1, 0,-1, 0},
1286 
1287 { 0, 1, 1, 1}, { 0,-1,-1,-1}, { 1, 1, 1, 0}, {-1,-1,-1, 0}, { 1, 1, 0, 1}, {-1,-1, 0,-1}, { 1, 0, 1, 1}, {-1, 0,-1,-1},
1288 { 0,-1, 1, 1}, { 0, 1,-1,-1}, {-1, 1, 1, 0}, { 1,-1,-1, 0}, { 1, 1, 0,-1}, {-1,-1, 0, 1}, { 1, 0,-1, 1}, {-1, 0, 1,-1},
1289 { 0, 1,-1, 1}, { 0,-1, 1,-1}, { 1,-1, 1, 0}, {-1, 1,-1, 0}, {-1, 1, 0, 1}, { 1,-1, 0,-1}, { 1, 0, 1,-1}, {-1, 0,-1, 1},
1290 { 0, 1, 1,-1}, { 0,-1,-1, 1}, { 1, 1,-1, 0}, {-1,-1, 1, 0}, { 1,-1, 0, 1}, {-1, 1, 0,-1}, {-1, 0, 1, 1}, { 1, 0,-1,-1},
1291 
1292 { 1, 1, 1, 1}, {-1,-1,-1,-1},
1293 { 1, 1, 1,-1}, {-1,-1,-1, 1}, { 1, 1,-1, 1}, {-1,-1, 1,-1}, { 1,-1, 1, 1}, {-1, 1,-1,-1}, {-1, 1, 1, 1}, { 1,-1,-1,-1},
1294 { 1, 1,-1,-1}, {-1,-1, 1, 1}, { 1,-1,-1, 1}, {-1, 1, 1,-1}, { 1,-1, 1,-1}, {-1, 1,-1, 1},
1295  };
1296  static const uint8_t hash[]={
1297 HASH8( 0, 0, 0, 1), HASH8( 0, 0, 0,-1), HASH8( 0, 0, 1, 0), HASH8( 0, 0,-1, 0), HASH8( 0, 1, 0, 0), HASH8( 0,-1, 0, 0), HASH8( 1, 0, 0, 0), HASH8(-1, 0, 0, 0),
1298 
1299 HASH8( 0, 0, 1, 1), HASH8( 0, 0,-1,-1), HASH8( 0, 1, 1, 0), HASH8( 0,-1,-1, 0), HASH8( 1, 1, 0, 0), HASH8(-1,-1, 0, 0), HASH8( 1, 0, 0, 1), HASH8(-1, 0, 0,-1),
1300 HASH8( 0, 1, 0, 1), HASH8( 0,-1, 0,-1), HASH8( 1, 0, 1, 0), HASH8(-1, 0,-1, 0),
1301 HASH8( 0, 0,-1, 1), HASH8( 0, 0, 1,-1), HASH8( 0,-1, 1, 0), HASH8( 0, 1,-1, 0), HASH8(-1, 1, 0, 0), HASH8( 1,-1, 0, 0), HASH8( 1, 0, 0,-1), HASH8(-1, 0, 0, 1),
1302 HASH8( 0,-1, 0, 1), HASH8( 0, 1, 0,-1), HASH8(-1, 0, 1, 0), HASH8( 1, 0,-1, 0),
1303 
1304 HASH8( 0, 1, 1, 1), HASH8( 0,-1,-1,-1), HASH8( 1, 1, 1, 0), HASH8(-1,-1,-1, 0), HASH8( 1, 1, 0, 1), HASH8(-1,-1, 0,-1), HASH8( 1, 0, 1, 1), HASH8(-1, 0,-1,-1),
1305 HASH8( 0,-1, 1, 1), HASH8( 0, 1,-1,-1), HASH8(-1, 1, 1, 0), HASH8( 1,-1,-1, 0), HASH8( 1, 1, 0,-1), HASH8(-1,-1, 0, 1), HASH8( 1, 0,-1, 1), HASH8(-1, 0, 1,-1),
1306 HASH8( 0, 1,-1, 1), HASH8( 0,-1, 1,-1), HASH8( 1,-1, 1, 0), HASH8(-1, 1,-1, 0), HASH8(-1, 1, 0, 1), HASH8( 1,-1, 0,-1), HASH8( 1, 0, 1,-1), HASH8(-1, 0,-1, 1),
1307 HASH8( 0, 1, 1,-1), HASH8( 0,-1,-1, 1), HASH8( 1, 1,-1, 0), HASH8(-1,-1, 1, 0), HASH8( 1,-1, 0, 1), HASH8(-1, 1, 0,-1), HASH8(-1, 0, 1, 1), HASH8( 1, 0,-1,-1),
1308 
1309 HASH8( 1, 1, 1, 1), HASH8(-1,-1,-1,-1),
1310 HASH8( 1, 1, 1,-1), HASH8(-1,-1,-1, 1), HASH8( 1, 1,-1, 1), HASH8(-1,-1, 1,-1), HASH8( 1,-1, 1, 1), HASH8(-1, 1,-1,-1), HASH8(-1, 1, 1, 1), HASH8( 1,-1,-1,-1),
1311 HASH8( 1, 1,-1,-1), HASH8(-1,-1, 1, 1), HASH8( 1,-1,-1, 1), HASH8(-1, 1, 1,-1), HASH8( 1,-1, 1,-1), HASH8(-1, 1,-1, 1),
1312 };
1313 
1314 #define CHECK_BIDIR(fx,fy,bx,by)\
1315  if( !map[(hashidx+HASH(fx,fy,bx,by))&255]\
1316  &&(fx<=0 || motion_fx+fx<=xmax) && (fy<=0 || motion_fy+fy<=ymax) && (bx<=0 || motion_bx+bx<=xmax) && (by<=0 || motion_by+by<=ymax)\
1317  &&(fx>=0 || motion_fx+fx>=xmin) && (fy>=0 || motion_fy+fy>=ymin) && (bx>=0 || motion_bx+bx>=xmin) && (by>=0 || motion_by+by>=ymin)){\
1318  int score;\
1319  map[(hashidx+HASH(fx,fy,bx,by))&255] = 1;\
1320  score= check_bidir_mv(s, motion_fx+fx, motion_fy+fy, motion_bx+bx, motion_by+by, pred_fx, pred_fy, pred_bx, pred_by, 0, 16);\
1321  if(score < fbmin){\
1322  hashidx += HASH(fx,fy,bx,by);\
1323  fbmin= score;\
1324  motion_fx+=fx;\
1325  motion_fy+=fy;\
1326  motion_bx+=bx;\
1327  motion_by+=by;\
1328  end=0;\
1329  }\
1330  }
1331 #define CHECK_BIDIR2(a,b,c,d)\
1332 CHECK_BIDIR(a,b,c,d)\
1333 CHECK_BIDIR(-(a),-(b),-(c),-(d))
1334 
1335  do{
1336  int i;
1337  int borderdist=0;
1338  end=1;
1339 
1340  CHECK_BIDIR2(0,0,0,1)
1341  CHECK_BIDIR2(0,0,1,0)
1342  CHECK_BIDIR2(0,1,0,0)
1343  CHECK_BIDIR2(1,0,0,0)
1344 
1345  for(i=8; i<limit; i++){
1346  int fx= motion_fx+vect[i][0];
1347  int fy= motion_fy+vect[i][1];
1348  int bx= motion_bx+vect[i][2];
1349  int by= motion_by+vect[i][3];
1350  if(borderdist<=0){
1351  int a= (xmax - FFMAX(fx,bx))|(FFMIN(fx,bx) - xmin);
1352  int b= (ymax - FFMAX(fy,by))|(FFMIN(fy,by) - ymin);
1353  if((a|b) < 0)
1354  map[(hashidx+hash[i])&255] = 1;
1355  }
1356  if(!map[(hashidx+hash[i])&255]){
1357  int score;
1358  map[(hashidx+hash[i])&255] = 1;
1359  score= check_bidir_mv(s, fx, fy, bx, by, pred_fx, pred_fy, pred_bx, pred_by, 0, 16);
1360  if(score < fbmin){
1361  hashidx += hash[i];
1362  fbmin= score;
1363  motion_fx=fx;
1364  motion_fy=fy;
1365  motion_bx=bx;
1366  motion_by=by;
1367  end=0;
1368  borderdist--;
1369  if(borderdist<=0){
1370  int a= FFMIN(xmax - FFMAX(fx,bx), FFMIN(fx,bx) - xmin);
1371  int b= FFMIN(ymax - FFMAX(fy,by), FFMIN(fy,by) - ymin);
1372  borderdist= FFMIN(a,b);
1373  }
1374  }
1375  }
1376  }
1377  }while(!end);
1378  }
1379 
1380  s->b_bidir_forw_mv_table[xy][0]= motion_fx;
1381  s->b_bidir_forw_mv_table[xy][1]= motion_fy;
1382  s->b_bidir_back_mv_table[xy][0]= motion_bx;
1383  s->b_bidir_back_mv_table[xy][1]= motion_by;
1384 
1385  return fbmin;
1386 }
1387 
1388 static inline int direct_search(MpegEncContext * s, int mb_x, int mb_y)
1389 {
1390  MotionEstContext * const c= &s->me;
1391  int P[10][2];
1392  const int mot_stride = s->mb_stride;
1393  const int mot_xy = mb_y*mot_stride + mb_x;
1394  const int shift= 1+s->quarter_sample;
1395  int dmin, i;
1396  const int time_pp= s->pp_time;
1397  const int time_pb= s->pb_time;
1398  int mx, my, xmin, xmax, ymin, ymax;
1399  int16_t (*mv_table)[2]= s->b_direct_mv_table;
1400 
1402  ymin= xmin=(-32)>>shift;
1403  ymax= xmax= 31>>shift;
1404 
1405  if (IS_8X8(s->next_picture.mb_type[mot_xy])) {
1406  s->mv_type= MV_TYPE_8X8;
1407  }else{
1408  s->mv_type= MV_TYPE_16X16;
1409  }
1410 
1411  for(i=0; i<4; i++){
1412  int index= s->block_index[i];
1413  int min, max;
1414 
1415  c->co_located_mv[i][0] = s->next_picture.motion_val[0][index][0];
1416  c->co_located_mv[i][1] = s->next_picture.motion_val[0][index][1];
1417  c->direct_basis_mv[i][0]= c->co_located_mv[i][0]*time_pb/time_pp + ((i& 1)<<(shift+3));
1418  c->direct_basis_mv[i][1]= c->co_located_mv[i][1]*time_pb/time_pp + ((i>>1)<<(shift+3));
1419 // c->direct_basis_mv[1][i][0]= c->co_located_mv[i][0]*(time_pb - time_pp)/time_pp + ((i &1)<<(shift+3);
1420 // c->direct_basis_mv[1][i][1]= c->co_located_mv[i][1]*(time_pb - time_pp)/time_pp + ((i>>1)<<(shift+3);
1421 
1422  max= FFMAX(c->direct_basis_mv[i][0], c->direct_basis_mv[i][0] - c->co_located_mv[i][0])>>shift;
1423  min= FFMIN(c->direct_basis_mv[i][0], c->direct_basis_mv[i][0] - c->co_located_mv[i][0])>>shift;
1424  max+= 16*mb_x + 1; // +-1 is for the simpler rounding
1425  min+= 16*mb_x - 1;
1426  xmax= FFMIN(xmax, s->width - max);
1427  xmin= FFMAX(xmin, - 16 - min);
1428 
1429  max= FFMAX(c->direct_basis_mv[i][1], c->direct_basis_mv[i][1] - c->co_located_mv[i][1])>>shift;
1430  min= FFMIN(c->direct_basis_mv[i][1], c->direct_basis_mv[i][1] - c->co_located_mv[i][1])>>shift;
1431  max+= 16*mb_y + 1; // +-1 is for the simpler rounding
1432  min+= 16*mb_y - 1;
1433  ymax= FFMIN(ymax, s->height - max);
1434  ymin= FFMAX(ymin, - 16 - min);
1435 
1436  if(s->mv_type == MV_TYPE_16X16) break;
1437  }
1438 
1439  av_assert2(xmax <= 15 && ymax <= 15 && xmin >= -16 && ymin >= -16);
1440 
1441  if(xmax < 0 || xmin >0 || ymax < 0 || ymin > 0){
1442  s->b_direct_mv_table[mot_xy][0]= 0;
1443  s->b_direct_mv_table[mot_xy][1]= 0;
1444 
1445  return 256*256*256*64;
1446  }
1447 
1448  c->xmin= xmin;
1449  c->ymin= ymin;
1450  c->xmax= xmax;
1451  c->ymax= ymax;
1452  c->flags |= FLAG_DIRECT;
1453  c->sub_flags |= FLAG_DIRECT;
1454  c->pred_x=0;
1455  c->pred_y=0;
1456 
1457  P_LEFT[0] = av_clip(mv_table[mot_xy - 1][0], xmin<<shift, xmax<<shift);
1458  P_LEFT[1] = av_clip(mv_table[mot_xy - 1][1], ymin<<shift, ymax<<shift);
1459 
1460  /* special case for first line */
1461  if (!s->first_slice_line) { //FIXME maybe allow this over thread boundary as it is clipped
1462  P_TOP[0] = av_clip(mv_table[mot_xy - mot_stride ][0], xmin<<shift, xmax<<shift);
1463  P_TOP[1] = av_clip(mv_table[mot_xy - mot_stride ][1], ymin<<shift, ymax<<shift);
1464  P_TOPRIGHT[0] = av_clip(mv_table[mot_xy - mot_stride + 1 ][0], xmin<<shift, xmax<<shift);
1465  P_TOPRIGHT[1] = av_clip(mv_table[mot_xy - mot_stride + 1 ][1], ymin<<shift, ymax<<shift);
1466 
1467  P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
1468  P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
1469  }
1470 
1471  dmin = ff_epzs_motion_search(s, &mx, &my, P, 0, 0, mv_table, 1<<(16-shift), 0, 16);
1472  if(c->sub_flags&FLAG_QPEL)
1473  dmin = qpel_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);
1474  else
1475  dmin = hpel_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);
1476 
1477  if(c->avctx->me_sub_cmp != c->avctx->mb_cmp && !c->skip)
1478  dmin= get_mb_score(s, mx, my, 0, 0, 0, 16, 1);
1479 
1480  get_limits(s, 16*mb_x, 16*mb_y); //restore c->?min/max, maybe not needed
1481 
1482  mv_table[mot_xy][0]= mx;
1483  mv_table[mot_xy][1]= my;
1484  c->flags &= ~FLAG_DIRECT;
1485  c->sub_flags &= ~FLAG_DIRECT;
1486 
1487  return dmin;
1488 }
1489 
1491  int mb_x, int mb_y)
1492 {
1493  MotionEstContext * const c= &s->me;
1494  const int penalty_factor= c->mb_penalty_factor;
1495  int fmin, bmin, dmin, fbmin, bimin, fimin;
1496  int type=0;
1497  const int xy = mb_y*s->mb_stride + mb_x;
1499  s->next_picture.f->data, 16 * mb_x, 16 * mb_y, 2);
1500 
1501  get_limits(s, 16*mb_x, 16*mb_y);
1502 
1503  c->skip=0;
1504 
1505  if (s->codec_id == AV_CODEC_ID_MPEG4 && s->next_picture.mbskip_table[xy]) {
1506  int score= direct_search(s, mb_x, mb_y); //FIXME just check 0,0
1507 
1508  score= ((unsigned)(score*score + 128*256))>>16;
1509  c->mc_mb_var_sum_temp += score;
1510  s->current_picture.mc_mb_var[mb_y*s->mb_stride + mb_x] = score; //FIXME use SSE
1511  s->mb_type[mb_y*s->mb_stride + mb_x]= CANDIDATE_MB_TYPE_DIRECT0;
1512 
1513  return;
1514  }
1515 
1516  if (s->codec_id == AV_CODEC_ID_MPEG4)
1517  dmin= direct_search(s, mb_x, mb_y);
1518  else
1519  dmin= INT_MAX;
1520 // FIXME penalty stuff for non-MPEG-4
1521  c->skip=0;
1522  fmin = estimate_motion_b(s, mb_x, mb_y, s->b_forw_mv_table, 0, s->f_code) +
1523  3 * penalty_factor;
1524 
1525  c->skip=0;
1526  bmin = estimate_motion_b(s, mb_x, mb_y, s->b_back_mv_table, 2, s->b_code) +
1527  2 * penalty_factor;
1528  ff_dlog(s, " %d %d ", s->b_forw_mv_table[xy][0], s->b_forw_mv_table[xy][1]);
1529 
1530  c->skip=0;
1531  fbmin= bidir_refine(s, mb_x, mb_y) + penalty_factor;
1532  ff_dlog(s, "%d %d %d %d\n", dmin, fmin, bmin, fbmin);
1533 
1535 //FIXME mb type penalty
1536  c->skip=0;
1538  fimin= interlaced_search(s, 0,
1540  s->b_forw_mv_table[xy][0], s->b_forw_mv_table[xy][1], 0);
1542  bimin= interlaced_search(s, 2,
1544  s->b_back_mv_table[xy][0], s->b_back_mv_table[xy][1], 0);
1545  }else
1546  fimin= bimin= INT_MAX;
1547 
1548  {
1549  int score= fmin;
1551 
1552  if (dmin <= score){
1553  score = dmin;
1554  type = CANDIDATE_MB_TYPE_DIRECT;
1555  }
1556  if(bmin<score){
1557  score=bmin;
1559  }
1560  if(fbmin<score){
1561  score=fbmin;
1563  }
1564  if(fimin<score){
1565  score=fimin;
1567  }
1568  if(bimin<score){
1569  score=bimin;
1571  }
1572 
1573  score= ((unsigned)(score*score + 128*256))>>16;
1574  c->mc_mb_var_sum_temp += score;
1575  s->current_picture.mc_mb_var[mb_y*s->mb_stride + mb_x] = score; //FIXME use SSE
1576  }
1577 
1580  if(fimin < INT_MAX)
1582  if(bimin < INT_MAX)
1584  if(fimin < INT_MAX && bimin < INT_MAX){
1585  type |= CANDIDATE_MB_TYPE_BIDIR_I;
1586  }
1587  //FIXME something smarter
1588  if(dmin>256*256*16) type&= ~CANDIDATE_MB_TYPE_DIRECT; //do not try direct mode if it is invalid for this MB
1590  s->mpv_flags & FF_MPV_FLAG_MV0 && *(uint32_t*)s->b_direct_mv_table[xy])
1591  type |= CANDIDATE_MB_TYPE_DIRECT0;
1592  }
1593 
1594  s->mb_type[mb_y*s->mb_stride + mb_x]= type;
1595 }
1596 
1597 /* find best f_code for ME which do unlimited searches */
1598 int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type)
1599 {
1600  if (s->motion_est != FF_ME_ZERO) {
1601  int score[8];
1602  int i, y, range= s->avctx->me_range ? s->avctx->me_range : (INT_MAX/2);
1603  uint8_t * fcode_tab= s->fcode_tab;
1604  int best_fcode=-1;
1605  int best_score=-10000000;
1606 
1607  if(s->msmpeg4_version)
1608  range= FFMIN(range, 16);
1610  range= FFMIN(range, 256);
1611 
1612  for(i=0; i<8; i++) score[i]= s->mb_num*(8-i);
1613 
1614  for(y=0; y<s->mb_height; y++){
1615  int x;
1616  int xy= y*s->mb_stride;
1617  for(x=0; x<s->mb_width; x++){
1618  if(s->mb_type[xy] & type){
1619  int mx= mv_table[xy][0];
1620  int my= mv_table[xy][1];
1621  int fcode= FFMAX(fcode_tab[mx + MAX_MV],
1622  fcode_tab[my + MAX_MV]);
1623  int j;
1624 
1625  if(mx >= range || mx < -range ||
1626  my >= range || my < -range)
1627  continue;
1628 
1629  for(j=0; j<fcode && j<8; j++){
1631  score[j]-= 170;
1632  }
1633  }
1634  xy++;
1635  }
1636  }
1637 
1638  for(i=1; i<8; i++){
1639  if(score[i] > best_score){
1640  best_score= score[i];
1641  best_fcode= i;
1642  }
1643  }
1644 
1645  return best_fcode;
1646  }else{
1647  return 1;
1648  }
1649 }
1650 
1652 {
1653  MotionEstContext * const c= &s->me;
1654  const int f_code= s->f_code;
1655  int y, range;
1657 
1658  range = (((s->out_format == FMT_MPEG1 || s->msmpeg4_version) ? 8 : 16) << f_code);
1659 
1660  av_assert0(range <= 16 || !s->msmpeg4_version);
1662 
1663  if(c->avctx->me_range && range > c->avctx->me_range) range= c->avctx->me_range;
1664 
1665  if (s->avctx->flags & AV_CODEC_FLAG_4MV) {
1666  const int wrap= s->b8_stride;
1667 
1668  /* clip / convert to intra 8x8 type MVs */
1669  for(y=0; y<s->mb_height; y++){
1670  int xy= y*2*wrap;
1671  int i= y*s->mb_stride;
1672  int x;
1673 
1674  for(x=0; x<s->mb_width; x++){
1676  int block;
1677  for(block=0; block<4; block++){
1678  int off= (block& 1) + (block>>1)*wrap;
1679  int mx = s->current_picture.motion_val[0][ xy + off ][0];
1680  int my = s->current_picture.motion_val[0][ xy + off ][1];
1681 
1682  if( mx >=range || mx <-range
1683  || my >=range || my <-range){
1684  s->mb_type[i] &= ~CANDIDATE_MB_TYPE_INTER4V;
1687  }
1688  }
1689  }
1690  xy+=2;
1691  i++;
1692  }
1693  }
1694  }
1695 }
1696 
1697 /**
1698  * @param truncate 1 for truncation, 0 for using intra
1699  */
1700 void ff_fix_long_mvs(MpegEncContext * s, uint8_t *field_select_table, int field_select,
1701  int16_t (*mv_table)[2], int f_code, int type, int truncate)
1702 {
1703  MotionEstContext * const c= &s->me;
1704  int y, h_range, v_range;
1705 
1706  // RAL: 8 in MPEG-1, 16 in MPEG-4
1707  int range = (((s->out_format == FMT_MPEG1 || s->msmpeg4_version) ? 8 : 16) << f_code);
1708 
1709  if(c->avctx->me_range && range > c->avctx->me_range) range= c->avctx->me_range;
1710 
1711  h_range= range;
1712  v_range= field_select_table ? range>>1 : range;
1713 
1714  /* clip / convert to intra 16x16 type MVs */
1715  for(y=0; y<s->mb_height; y++){
1716  int x;
1717  int xy= y*s->mb_stride;
1718  for(x=0; x<s->mb_width; x++){
1719  if (s->mb_type[xy] & type){ // RAL: "type" test added...
1720  if (!field_select_table || field_select_table[xy] == field_select) {
1721  if( mv_table[xy][0] >=h_range || mv_table[xy][0] <-h_range
1722  || mv_table[xy][1] >=v_range || mv_table[xy][1] <-v_range){
1723 
1724  if(truncate){
1725  if (mv_table[xy][0] > h_range-1) mv_table[xy][0]= h_range-1;
1726  else if(mv_table[xy][0] < -h_range ) mv_table[xy][0]= -h_range;
1727  if (mv_table[xy][1] > v_range-1) mv_table[xy][1]= v_range-1;
1728  else if(mv_table[xy][1] < -v_range ) mv_table[xy][1]= -v_range;
1729  }else{
1730  s->mb_type[xy] &= ~type;
1731  s->mb_type[xy] |= CANDIDATE_MB_TYPE_INTRA;
1732  mv_table[xy][0]=
1733  mv_table[xy][1]= 0;
1734  }
1735  }
1736  }
1737  }
1738  xy++;
1739  }
1740  }
1741 }
uint8_t * scratchpad
data area for the ME algo, so that the ME does not need to malloc/free.
Definition: motion_est.h:52
static uint8_t mv_penalty[MAX_FCODE+1][MAX_DMV *2+1]
Table of number of bits a motion vector component needs.
Definition: ituh263enc.c:47
#define AV_CODEC_FLAG_INTERLACED_ME
interlaced motion estimation
Definition: avcodec.h:892
static int minima_cmp(const void *a, const void *b)
Definition: motion_est.c:72
static int cmp_qpel(MpegEncContext *s, const int x, const int y, const int subx, const int suby, const int size, const int h, int ref_index, int src_index, me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags)
Definition: motion_est.c:285
#define NULL
Definition: coverity.c:32
static unsigned update_map_generation(MotionEstContext *c)
Definition: motion_est.c:55
void ff_estimate_b_frame_motion(MpegEncContext *s, int mb_x, int mb_y)
Definition: motion_est.c:1490
qpel_mc_func avg_qpel_pixels_tab[2][16]
Definition: qpeldsp.h:74
const char * s
Definition: avisynth_c.h:768
#define P
#define CANDIDATE_MB_TYPE_SKIPPED
Definition: mpegutils.h:107
static int shift(int a, int b)
Definition: sonic.c:82
static av_always_inline void mv_scale(Mv *dst, Mv *src, int td, int tb)
Definition: hevc_mvs.c:115
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 av_always_inline void chroma(WaveformContext *s, AVFrame *in, AVFrame *out, int component, int intensity, int offset_y, int offset_x, int column, int mirror)
Definition: vf_waveform.c:1345
#define P_TOPRIGHT
Definition: motion_est.c:43
static int check_bidir_mv(MpegEncContext *s, int motion_fx, int motion_fy, int motion_bx, int motion_by, int pred_fx, int pred_fy, int pred_bx, int pred_by, int size, int h)
Definition: motion_est.c:1176
int skip
set if ME is skipped for the current MB
Definition: motion_est.h:49
int16_t(* p_mv_table)[2]
MV table (1MV per MB) P-frame encoding.
Definition: mpegvideo.h:245
static void get_limits(MpegEncContext *s, int x, int y)
get fullpel ME search limits.
Definition: motion_est.c:524
uint8_t * fcode_tab
smallest fcode needed for each MV
Definition: mpegvideo.h:276
void ff_estimate_p_frame_motion(MpegEncContext *s, int mb_x, int mb_y)
Definition: motion_est.c:885
uint8_t * mb_mean
Table for MB luminance.
Definition: mpegpicture.h:74
op_pixels_func avg_pixels_tab[4][4]
Halfpel motion compensation with rounding (a+b+1)>>1.
Definition: hpeldsp.h:68
static void init_mv4_ref(MotionEstContext *c)
Definition: motion_est.c:560
qpel_mc_func put_no_rnd_qpel_pixels_tab[2][16]
Definition: qpeldsp.h:75
#define CANDIDATE_MB_TYPE_INTER_I
Definition: mpegutils.h:114
#define P_LEFT
Definition: motion_est.c:41
int ff_epzs_motion_search(struct 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)
uint16_t * mb_var
Table for MB variances.
Definition: mpegpicture.h:65
#define MAX_MV
Definition: motion_est.h:35
uint8_t * current_mv_penalty
Definition: motion_est.h:94
int msmpeg4_version
0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8
Definition: mpegvideo.h:433
#define CANDIDATE_MB_TYPE_BIDIR
Definition: mpegutils.h:112
enum AVCodecID codec_id
Definition: mpegvideo.h:109
const char * b
Definition: vf_curves.c:113
static int cmp_simple(MpegEncContext *s, const int x, const int y, int ref_index, int src_index, me_cmp_func cmp_func, me_cmp_func chroma_cmp_func)
Definition: motion_est.c:231
int sub_penalty_factor
Definition: motion_est.h:67
int16_t(*[2][2] p_field_mv_table)[2]
MV table (2MV per MB) interlaced P-frame encoding.
Definition: mpegvideo.h:251
static int bidir_refine(MpegEncContext *s, int mb_x, int mb_y)
Definition: motion_est.c:1241
#define FF_CMP_W97
Definition: avcodec.h:1918
mpegvideo header.
int pre_penalty_factor
Definition: motion_est.h:61
int scene_change_score
Definition: motion_est.h:87
int mpv_flags
flags set by private options
Definition: mpegvideo.h:523
int mb_num
number of MBs of a picture
Definition: mpegvideo.h:130
#define src
Definition: vp8dsp.c:254
#define FF_LAMBDA_SHIFT
Definition: avutil.h:225
QpelDSPContext qdsp
Definition: mpegvideo.h:232
uint8_t(* mv_penalty)[MAX_DMV *2+1]
bit amount needed to encode a MV
Definition: motion_est.h:93
me_cmp_func me_pre_cmp[6]
Definition: me_cmp.h:71
int qscale
QP.
Definition: mpegvideo.h:201
int16_t(* b_back_mv_table)[2]
MV table (1MV per MB) backward mode B-frame encoding.
Definition: mpegvideo.h:247
#define P_MV1
Definition: motion_est.c:45
uint8_t * ref[4][4]
Definition: motion_est.h:81
#define FF_ME_ZERO
Definition: motion_est.h:40
static int cmp_internal(MpegEncContext *s, const int x, const int y, const int subx, const int suby, const int size, const int h, int ref_index, int src_index, me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags)
Definition: motion_est.c:247
static int16_t block[64]
Definition: dct.c:115
#define CANDIDATE_MB_TYPE_INTER
Definition: mpegutils.h:105
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
static int zero_cmp(MpegEncContext *s, uint8_t *a, uint8_t *b, ptrdiff_t stride, int h)
Definition: motion_est.c:297
int y
Definition: motion_est.c:68
op_pixels_func(* hpel_put)[4]
Definition: motion_est.h:89
uint8_t
#define ME_MAP_SIZE
Definition: motion_est.h:38
#define av_assert2(cond)
assert() equivalent, that does lie in speed critical code.
Definition: avassert.h:64
me_cmp_func mb_cmp[6]
Definition: me_cmp.h:74
#define CANDIDATE_MB_TYPE_INTER4V
Definition: mpegutils.h:106
enum OutputFormat out_format
output format
Definition: mpegvideo.h:101
int me_range
maximum motion estimation search range in subpel units If 0 then no limit.
Definition: avcodec.h:1972
#define CANDIDATE_MB_TYPE_FORWARD_I
Definition: mpegutils.h:115
#define FLAG_DIRECT
Definition: motion_est.c:81
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
int pre_dia_size
ME prepass diamond size & shape.
Definition: avcodec.h:1956
Motion estimation context.
Definition: motion_est.h:47
qpel_mc_func(* qpel_put)[16]
Definition: motion_est.h:91
int no_rounding
apply no rounding to motion compensation (MPEG-4, msmpeg4, ...) for B-frames rounding mode is always ...
Definition: mpegvideo.h:281
#define CANDIDATE_MB_TYPE_BACKWARD_I
Definition: mpegutils.h:116
int me_cmp
motion estimation comparison function
Definition: avcodec.h:1887
Picture current_picture
copy of the current picture structure.
Definition: mpegvideo.h:177
int16_t(* b_bidir_forw_mv_table)[2]
MV table (1MV per MB) bidir mode B-frame encoding.
Definition: mpegvideo.h:248
static int get_flags(MotionEstContext *c, int direct, int chroma)
Definition: motion_est.c:101
static int flags
Definition: log.c:57
#define ff_dlog(a,...)
uint16_t pp_time
time distance between the last 2 p,s,i frames
Definition: mpegvideo.h:387
op_pixels_func(* hpel_avg)[4]
Definition: motion_est.h:90
int mb_height
number of MBs horizontally & vertically
Definition: mpegvideo.h:126
ptrdiff_t size
Definition: opengl_enc.c:101
#define FF_CMP_CHROMA
Definition: avcodec.h:1922
#define FF_CMP_SSE
Definition: avcodec.h:1907
#define CHECK_BIDIR2(a, b, c, d)
#define av_log(a,...)
#define ff_sqrt
Definition: mathops.h:206
uint8_t hash[HASH_SIZE]
Definition: movenc.c:57
#define FF_MPV_FLAG_MV0
Definition: mpegvideo.h:573
#define FF_CMP_MEDIAN_SAD
Definition: avcodec.h:1921
#define MAX_DMV
Definition: motion_est.h:37
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
uint8_t * mbskip_table
Definition: mpegpicture.h:59
int height
Definition: motion_est.c:67
#define AV_CODEC_FLAG_4MV
4 MV per MB allowed / advanced prediction for H.263.
Definition: avcodec.h:834
static const uint16_t mask[17]
Definition: lzw.c:38
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 no_sub_motion_search(MpegEncContext *s, int *mx_ptr, int *my_ptr, int dmin, int src_index, int ref_index, int size, int h)
#define LOAD_COMMON
int me_sub_cmp
subpixel motion estimation comparison function
Definition: avcodec.h:1893
static uint8_t fcode_tab[MAX_MV *2+1]
Minimal fcode that a motion vector component would need.
Definition: ituh263enc.c:52
int unrestricted_mv
mv can point outside of the coded picture
Definition: mpegvideo.h:220
const char * r
Definition: vf_curves.c:111
static int get_penalty_factor(int lambda, int lambda2, int type)
Definition: motion_est.c:860
#define P_MEDIAN
Definition: motion_est.c:44
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:1582
#define wrap(func)
Definition: neontest.h:65
static void init_interlaced_ref(MpegEncContext *s, int ref_index)
Definition: motion_est.c:725
MpegvideoEncDSPContext mpvencdsp
Definition: mpegvideo.h:230
int quarter_sample
1->qpel, 0->half pel ME/MC
Definition: mpegvideo.h:396
uint16_t * mb_type
Table for candidate MB types for encoding (defines in mpegutils.h)
Definition: mpegvideo.h:288
qpel_mc_func put_qpel_pixels_tab[2][16]
Definition: qpeldsp.h:73
uint8_t *[2][2] b_field_select_table
Definition: mpegvideo.h:254
static const uint8_t offset[127][2]
Definition: vf_spp.c:92
#define FFMAX(a, b)
Definition: common.h:94
int64_t mb_var_sum_temp
Definition: motion_est.h:86
int checked
Definition: motion_est.c:69
uint8_t * src[4][4]
Definition: motion_est.h:80
#define FF_CMP_BIT
Definition: avcodec.h:1911
#define FLAG_CHROMA
Definition: motion_est.c:80
Motion estimation template.
#define av_assert1(cond)
assert() equivalent, that does not lie in speed critical code.
Definition: avassert.h:53
#define FLAG_QPEL
Definition: motion_est.c:79
#define FFMIN(a, b)
Definition: common.h:96
#define ME_MAP_SHIFT
Definition: motion_est.c:47
static int cmp_fpel_internal(MpegEncContext *s, const int x, const int y, const int size, const int h, int ref_index, int src_index, me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags)
Definition: motion_est.c:237
Picture new_picture
copy of the source picture structure for encoding.
Definition: mpegvideo.h:171
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)
#define P_TOP
Definition: motion_est.c:42
int(* pix_sum)(uint8_t *pix, int line_size)
int16_t(*[2] motion_val)[2]
Definition: mpegpicture.h:53
Picture.
Definition: mpegpicture.h:45
unsigned map_generation
Definition: motion_est.h:60
#define FF_MB_DECISION_SIMPLE
uses mb_cmp
Definition: avcodec.h:1990
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:72
static int interlaced_search(MpegEncContext *s, int ref_index, int16_t(*mv_tables[2][2])[2], uint8_t *field_select_tables[2], int mx, int my, int user_field_select)
Definition: motion_est.c:738
static av_always_inline int cmp(MpegEncContext *s, const int x, const int y, const int subx, const int suby, const int size, const int h, int ref_index, int src_index, me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags)
compares a block (either a full macroblock or a partition thereof) against a proposed motion-compensa...
Definition: motion_est.c:260
MotionEstContext me
Definition: mpegvideo.h:279
int(* me_cmp_func)(struct MpegEncContext *c, uint8_t *blk1, uint8_t *blk2, ptrdiff_t stride, int h)
Definition: me_cmp.h:48
int mb_decision
macroblock decision mode
Definition: avcodec.h:1989
static int get_mb_score(MpegEncContext *s, int mx, int my, int src_index, int ref_index, int size, int h, int add_rate)
preferred ID for MPEG-1/2 video decoding
Definition: avcodec.h:220
#define FF_CMP_SAD
Definition: avcodec.h:1906
int block_index[6]
index to current MB in block based arrays with edges
Definition: mpegvideo.h:290
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)
int penalty_factor
an estimate of the bits required to code a given mv value, e.g.
Definition: motion_est.h:62
static int estimate_motion_b(MpegEncContext *s, int mb_x, int mb_y, int16_t(*mv_table)[2], int ref_index, int f_code)
Definition: motion_est.c:1114
#define HASH8(fx, fy, bx, by)
#define MV_TYPE_16X16
1 vector for the whole mb
Definition: mpegvideo.h:263
int first_slice_line
used in MPEG-4 too to handle resync markers
Definition: mpegvideo.h:431
uint16_t * mc_mb_var
Table for motion compensated MB variances.
Definition: mpegpicture.h:68
int bidir_refine
Definition: avcodec.h:2065
#define AV_LOG_INFO
Standard information.
Definition: log.h:187
unsigned int lambda2
(lambda*lambda) >> FF_LAMBDA_SHIFT
Definition: mpegvideo.h:204
Libavcodec external API header.
#define FF_CMP_RD
Definition: avcodec.h:1912
ptrdiff_t linesize
line size, in bytes, may be different from width
Definition: mpegvideo.h:131
AVCodecContext * avctx
Definition: motion_est.h:48
void ff_set_cmp(MECmpContext *c, me_cmp_func *cmp, int type)
Definition: me_cmp.c:440
#define CHECK_SAD_HALF_MV(suffix, x, y)
Definition: motion_est.c:385
int(* cmp_func)(const void *, const void *)
int height
picture size. must be a multiple of 16
Definition: mpegvideo.h:97
#define FF_CMP_NSSE
Definition: avcodec.h:1916
#define FF_CMP_SATD
Definition: avcodec.h:1908
op_pixels_func put_pixels_tab[4][4]
Halfpel motion compensation with rounding (a+b+1)>>1.
Definition: hpeldsp.h:56
static int direct_search(MpegEncContext *s, int mb_x, int mb_y)
Definition: motion_est.c:1388
#define FF_CMP_DCT
Definition: avcodec.h:1909
GLint GLenum type
Definition: opengl_enc.c:105
void ff_fix_long_p_mvs(MpegEncContext *s)
Definition: motion_est.c:1651
op_pixels_func put_no_rnd_pixels_tab[4][4]
Halfpel motion compensation with no rounding (a+b)>>1.
Definition: hpeldsp.h:82
int16_t(*[2][2][2] b_field_mv_table)[2]
MV table (4MV per MB) interlaced B-frame encoding.
Definition: mpegvideo.h:252
int(* pix_norm1)(uint8_t *pix, int line_size)
#define FF_COMPLIANCE_NORMAL
Definition: avcodec.h:2563
int index
Definition: gxfenc.c:89
#define CANDIDATE_MB_TYPE_DIRECT
Definition: mpegutils.h:109
struct AVFrame * f
Definition: mpegpicture.h:46
static av_always_inline int cmp_direct_inline(MpegEncContext *s, const int x, const int y, const int subx, const int suby, const int size, const int h, int ref_index, int src_index, me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, int qpel)
Definition: motion_est.c:107
#define mid_pred
Definition: mathops.h:97
ptrdiff_t uvlinesize
line size, for chroma in bytes, may be different from width
Definition: mpegvideo.h:132
#define MAX_SAB_SIZE
#define FF_CMP_PSNR
Definition: avcodec.h:1910
const VDPAUPixFmtMap * map
static int ff_h263_round_chroma(int x)
Definition: motion_est.h:101
#define FF_CMP_W53
Definition: avcodec.h:1917
#define CANDIDATE_MB_TYPE_BIDIR_I
Definition: mpegutils.h:117
int f_code
forward MV resolution
Definition: mpegvideo.h:235
int ff_pre_estimate_p_frame_motion(MpegEncContext *s, int mb_x, int mb_y)
Definition: motion_est.c:1061
#define CANDIDATE_MB_TYPE_DIRECT0
Definition: mpegutils.h:119
#define ME_MAP_MV_BITS
Definition: motion_est.c:48
#define FF_CMP_DCT264
Definition: avcodec.h:1920
int pict_type
AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
Definition: mpegvideo.h:209
static void set_p_mv_tables(MpegEncContext *s, int mx, int my, int mv4)
Definition: motion_est.c:497
int motion_est
ME algorithm.
Definition: mpegvideo.h:255
static int sad_hpel_motion_search(MpegEncContext *s, int *mx_ptr, int *my_ptr, int dmin, int src_index, int ref_index, int size, int h)
Definition: motion_est.c:392
int16_t(* b_bidir_back_mv_table)[2]
MV table (1MV per MB) bidir mode B-frame encoding.
Definition: mpegvideo.h:249
me_cmp_func me_cmp[6]
Definition: me_cmp.h:72
int ff_init_me(MpegEncContext *s)
Definition: motion_est.c:306
uint8_t *[2] p_field_select_table
Definition: mpegvideo.h:253
int16_t(* b_direct_mv_table)[2]
MV table (1MV per MB) direct mode B-frame encoding.
Definition: mpegvideo.h:250
#define AV_CODEC_FLAG_QPEL
Use qpel MC.
Definition: avcodec.h:842
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:215
#define av_builtin_constant_p
Definition: attributes.h:154
qpel_mc_func(* qpel_avg)[16]
Definition: motion_est.h:92
int64_t mc_mb_var_sum_temp
Definition: motion_est.h:85
int16_t(* b_forw_mv_table)[2]
MV table (1MV per MB) forward mode B-frame encoding.
Definition: mpegvideo.h:246
static void zero_hpel(uint8_t *a, const uint8_t *b, ptrdiff_t stride, int h)
Definition: motion_est.c:303
int b8_stride
2*mb_width+1 used for some 8x8 block arrays to allow simple addressing
Definition: mpegvideo.h:128
me_cmp_func sse[6]
Definition: me_cmp.h:57
MpegEncContext.
Definition: mpegvideo.h:78
struct AVCodecContext * avctx
Definition: mpegvideo.h:95
GLint GLenum GLboolean GLsizei stride
Definition: opengl_enc.c:105
int mb_cmp
macroblock comparison function (not supported yet)
Definition: avcodec.h:1899
MECmpContext mecc
Definition: mpegvideo.h:228
int direct_basis_mv[4][2]
Definition: motion_est.h:51
common internal api header.
int mb_stride
mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11 ...
Definition: mpegvideo.h:127
if(ret< 0)
Definition: vf_mcdeint.c:279
static int ref[MAX_W *MAX_W]
Definition: jpeg2000dwt.c:107
#define CANDIDATE_MB_TYPE_FORWARD
Definition: mpegutils.h:110
static double c[64]
Picture last_picture
copy of the previous picture structure.
Definition: mpegvideo.h:159
Bi-dir predicted.
Definition: avutil.h:276
int co_located_mv[4][2]
mv from last P-frame for direct mode ME
Definition: motion_est.h:50
me_cmp_func me_sub_cmp[6]
Definition: me_cmp.h:73
uint32_t * map
map to avoid duplicate evaluations
Definition: motion_est.h:58
static int h263_mv4_search(MpegEncContext *s, int mx, int my, int shift)
Definition: motion_est.c:571
#define CANDIDATE_MB_TYPE_INTRA
Definition: mpegutils.h:104
int dia_size
ME diamond size & shape.
Definition: avcodec.h:1929
#define IS_8X8(a)
Definition: mpegutils.h:89
static void init_ref(MotionEstContext *c, uint8_t *src[3], uint8_t *ref[3], uint8_t *ref2[3], int x, int y, int ref_index)
Definition: motion_est.c:83
static int cmp_hpel(MpegEncContext *s, const int x, const int y, const int subx, const int suby, const int size, const int h, int ref_index, int src_index, me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags)
Definition: motion_est.c:275
int ff_get_best_fcode(MpegEncContext *s, int16_t(*mv_table)[2], int type)
Definition: motion_est.c:1598
Picture next_picture
copy of the next picture structure.
Definition: mpegvideo.h:165
void ff_fix_long_mvs(MpegEncContext *s, uint8_t *field_select_table, int field_select, int16_t(*mv_table)[2], int f_code, int type, int truncate)
Definition: motion_est.c:1700
uint32_t * mb_type
types and macros are defined in mpegutils.h
Definition: mpegpicture.h:56
#define av_always_inline
Definition: attributes.h:39
uint8_t * temp
Definition: motion_est.h:56
static av_always_inline int cmp_inline(MpegEncContext *s, const int x, const int y, const int subx, const int suby, const int size, const int h, int ref_index, int src_index, me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, int qpel, int chroma)
Definition: motion_est.c:179
#define CANDIDATE_MB_TYPE_BACKWARD
Definition: mpegutils.h:111
#define stride
#define MV_TYPE_8X8
4 vectors (H.263, MPEG-4 4MV)
Definition: mpegvideo.h:264
int b_code
backward MV resolution for B-frames (MPEG-4)
Definition: mpegvideo.h:236
int me_pre_cmp
motion estimation prepass comparison function
Definition: avcodec.h:1949
float min
int(* sub_motion_search)(struct MpegEncContext *s, int *mx_ptr, int *my_ptr, int dmin, int src_index, int ref_index, int size, int h)
Definition: motion_est.h:95
int x
Definition: motion_est.c:68
int strict_std_compliance
strictly follow the standard (MPEG-4, ...).
Definition: avcodec.h:2560
Predicted.
Definition: avutil.h:275
unsigned int lambda
Lagrange multiplier used in rate distortion.
Definition: mpegvideo.h:203
#define HASH(fx, fy, bx, by)
uint16_t pb_time
time distance between the last b and p,s,i frame
Definition: mpegvideo.h:388
HpelDSPContext hdsp
Definition: mpegvideo.h:226