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1 : Isibaar 3 /**************************************************************************
2 :     *
3 : chl 259 * XVID MPEG-4 VIDEO CODEC
4 :     * motion estimation
5 :     *
6 :     * This program is an implementation of a part of one or more MPEG-4
7 :     * Video tools as specified in ISO/IEC 14496-2 standard. Those intending
8 :     * to use this software module in hardware or software products are
9 :     * advised that its use may infringe existing patents or copyrights, and
10 :     * any such use would be at such party's own risk. The original
11 :     * developer of this software module and his/her company, and subsequent
12 :     * editors and their companies, will have no liability for use of this
13 :     * software or modifications or derivatives thereof.
14 :     *
15 :     * This program is free software; you can redistribute it and/or modify
16 :     * it under the terms of the GNU General Public License as published by
17 :     * the Free Software Foundation; either version 2 of the License, or
18 :     * (at your option) any later version.
19 :     *
20 :     * This program is distributed in the hope that it will be useful,
21 :     * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 :     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 :     * GNU General Public License for more details.
24 :     *
25 :     * You should have received a copy of the GNU General Public License
26 :     * along with this program; if not, write to the Free Software
27 :     * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
28 :     *
29 :     *************************************************************************/
30 :    
31 : Isibaar 3 #include <assert.h>
32 :     #include <stdio.h>
33 : chl 96 #include <stdlib.h>
34 : suxen_drol 721 #include <string.h> // memcpy
35 : Isibaar 3
36 :     #include "../encoder.h"
37 :     #include "../utils/mbfunctions.h"
38 :     #include "../prediction/mbprediction.h"
39 :     #include "../global.h"
40 :     #include "../utils/timer.h"
41 : Isibaar 580 #include "../image/interpolate8x8.h"
42 : chl 530 #include "motion_est.h"
43 : suxen_drol 118 #include "motion.h"
44 : Isibaar 3 #include "sad.h"
45 : Isibaar 539 #include "../utils/emms.h"
46 : Isibaar 3
47 : chl 530 #define INITIAL_SKIP_THRESH (10)
48 :     #define FINAL_SKIP_THRESH (50)
49 :     #define MAX_SAD00_FOR_SKIP (20)
50 : Isibaar 539 #define MAX_CHROMA_SAD_FOR_SKIP (22)
51 : Isibaar 3
52 : chl 530 #define CHECK_CANDIDATE(X,Y,D) { \
53 :     (*CheckCandidate)((const int)(X),(const int)(Y), (D), &iDirection, data ); }
54 : Isibaar 3
55 : chl 530 static __inline int
56 : syskin 724 d_mv_bits(int x, int y, const VECTOR pred, const uint32_t iFcode, const int qpel, const int rrv)
57 : Isibaar 3 {
58 : chl 530 int xb, yb;
59 : syskin 712 if (qpel) { x *= 2; y *= 2;}
60 :     else if (rrv) { x = RRV_MV_SCALEDOWN(x); y = RRV_MV_SCALEDOWN(y); }
61 : syskin 724 x = pred.x - x;
62 :     y = pred.y - y;
63 : chl 530
64 :     if (x == 0) xb = 1;
65 :     else {
66 :     if (x < 0) x = -x;
67 :     x += (1 << (iFcode - 1)) - 1;
68 :     x >>= (iFcode - 1);
69 :     if (x > 32) x = 32;
70 :     xb = mvtab[x] + iFcode;
71 : edgomez 195 }
72 : Isibaar 3
73 : chl 530 if (y == 0) yb = 1;
74 :     else {
75 :     if (y < 0) y = -y;
76 :     y += (1 << (iFcode - 1)) - 1;
77 :     y >>= (iFcode - 1);
78 :     if (y > 32) y = 32;
79 :     yb = mvtab[y] + iFcode;
80 :     }
81 :     return xb + yb;
82 : Isibaar 3 }
83 :    
84 : syskin 628 static int32_t
85 :     ChromaSAD(int dx, int dy, const SearchData * const data)
86 : Isibaar 3 {
87 : syskin 628 int sad;
88 :     dx = (dx >> 1) + roundtab_79[dx & 0x3];
89 :     dy = (dy >> 1) + roundtab_79[dy & 0x3];
90 : Isibaar 3
91 : syskin 712 if (dx == data->temp[5] && dy == data->temp[6]) return data->temp[7]; //it has been checked recently
92 :    
93 :     switch (((dx & 1) << 1) | (dy & 1)) {
94 : syskin 628 case 0:
95 :     sad = sad8(data->CurU, data->RefCU + (dy/2) * (data->iEdgedWidth/2) + dx/2, data->iEdgedWidth/2);
96 :     sad += sad8(data->CurV, data->RefCV + (dy/2) * (data->iEdgedWidth/2) + dx/2, data->iEdgedWidth/2);
97 :     break;
98 :     case 1:
99 :     dx = dx / 2; dy = (dy - 1) / 2;
100 :     sad = sad8bi(data->CurU, data->RefCU + dy * (data->iEdgedWidth/2) + dx, data->RefCU + (dy+1) * (data->iEdgedWidth/2) + dx, data->iEdgedWidth/2);
101 :     sad += sad8bi(data->CurV, data->RefCV + dy * (data->iEdgedWidth/2) + dx, data->RefCV + (dy+1) * (data->iEdgedWidth/2) + dx, data->iEdgedWidth/2);
102 :     break;
103 :     case 2:
104 :     dx = (dx - 1) / 2; dy = dy / 2;
105 :     sad = sad8bi(data->CurU, data->RefCU + dy * (data->iEdgedWidth/2) + dx, data->RefCU + dy * (data->iEdgedWidth/2) + dx+1, data->iEdgedWidth/2);
106 :     sad += sad8bi(data->CurV, data->RefCV + dy * (data->iEdgedWidth/2) + dx, data->RefCV + dy * (data->iEdgedWidth/2) + dx+1, data->iEdgedWidth/2);
107 :     break;
108 :     default:
109 :     dx = (dx - 1) / 2; dy = (dy - 1) / 2;
110 :     interpolate8x8_halfpel_hv(data->RefQ,
111 :     data->RefCU + dy * (data->iEdgedWidth/2) + dx, data->iEdgedWidth/2,
112 :     data->rounding);
113 :     sad = sad8(data->CurU, data->RefQ, data->iEdgedWidth/2);
114 :     interpolate8x8_halfpel_hv(data->RefQ,
115 :     data->RefCV + dy * (data->iEdgedWidth/2) + dx, data->iEdgedWidth/2,
116 :     data->rounding);
117 :     sad += sad8(data->CurV, data->RefQ, data->iEdgedWidth/2);
118 :     break;
119 : chl 530 }
120 : syskin 712 data->temp[5] = dx; data->temp[6] = dy; data->temp[7] = sad; //backup
121 : syskin 628 return sad;
122 :     }
123 : Isibaar 3
124 : syskin 663 static __inline const uint8_t *
125 :     GetReference(const int x, const int y, const int dir, const SearchData * const data)
126 : Isibaar 606 {
127 : syskin 663 // dir : 0 = forward, 1 = backward
128 :     switch ( (dir << 2) | ((x&1)<<1) | (y&1) ) {
129 :     case 0 : return data->Ref + x/2 + (y/2)*(data->iEdgedWidth);
130 :     case 1 : return data->RefV + x/2 + ((y-1)/2)*(data->iEdgedWidth);
131 :     case 2 : return data->RefH + (x-1)/2 + (y/2)*(data->iEdgedWidth);
132 :     case 3 : return data->RefHV + (x-1)/2 + ((y-1)/2)*(data->iEdgedWidth);
133 :     case 4 : return data->bRef + x/2 + (y/2)*(data->iEdgedWidth);
134 :     case 5 : return data->bRefV + x/2 + ((y-1)/2)*(data->iEdgedWidth);
135 :     case 6 : return data->bRefH + (x-1)/2 + (y/2)*(data->iEdgedWidth);
136 :     default : return data->bRefHV + (x-1)/2 + ((y-1)/2)*(data->iEdgedWidth);
137 : Isibaar 606 }
138 :     }
139 :    
140 : syskin 663 static uint8_t *
141 :     Interpolate8x8qpel(const int x, const int y, const int block, const int dir, const SearchData * const data)
142 : chl 530 {
143 : syskin 663 // create or find a qpel-precision reference picture; return pointer to it
144 : syskin 668 uint8_t * Reference = (uint8_t *)data->RefQ + 16*dir;
145 : syskin 663 const int32_t iEdgedWidth = data->iEdgedWidth;
146 :     const uint32_t rounding = data->rounding;
147 :     const int halfpel_x = x/2;
148 :     const int halfpel_y = y/2;
149 :     const uint8_t *ref1, *ref2, *ref3, *ref4;
150 : chl 326
151 : syskin 740 ref1 = GetReference(halfpel_x, halfpel_y, dir, data);
152 : syskin 663 ref1 += 8 * (block&1) + 8 * (block>>1) * iEdgedWidth;
153 :     switch( ((x&1)<<1) + (y&1) ) {
154 :     case 0: // pure halfpel position
155 : syskin 740 return (uint8_t *) ref1;
156 : syskin 663 break;
157 : Isibaar 3
158 : syskin 663 case 1: // x halfpel, y qpel - top or bottom during qpel refinement
159 :     ref2 = GetReference(halfpel_x, y - halfpel_y, dir, data);
160 :     ref2 += 8 * (block&1) + 8 * (block>>1) * iEdgedWidth;
161 : Isibaar 665 interpolate8x8_avg2(Reference, ref1, ref2, iEdgedWidth, rounding, 8);
162 : syskin 663 break;
163 : Isibaar 3
164 : syskin 663 case 2: // x qpel, y halfpel - left or right during qpel refinement
165 :     ref2 = GetReference(x - halfpel_x, halfpel_y, dir, data);
166 :     ref2 += 8 * (block&1) + 8 * (block>>1) * iEdgedWidth;
167 : Isibaar 665 interpolate8x8_avg2(Reference, ref1, ref2, iEdgedWidth, rounding, 8);
168 : syskin 663 break;
169 : Isibaar 3
170 : syskin 663 default: // x and y in qpel resolution - the "corners" (top left/right and
171 :     // bottom left/right) during qpel refinement
172 :     ref2 = GetReference(halfpel_x, y - halfpel_y, dir, data);
173 :     ref3 = GetReference(x - halfpel_x, halfpel_y, dir, data);
174 :     ref4 = GetReference(x - halfpel_x, y - halfpel_y, dir, data);
175 :     ref2 += 8 * (block&1) + 8 * (block>>1) * iEdgedWidth;
176 :     ref3 += 8 * (block&1) + 8 * (block>>1) * iEdgedWidth;
177 :     ref4 += 8 * (block&1) + 8 * (block>>1) * iEdgedWidth;
178 :     interpolate8x8_avg4(Reference, ref1, ref2, ref3, ref4, iEdgedWidth, rounding);
179 :     break;
180 :     }
181 :     return Reference;
182 : Isibaar 3 }
183 :    
184 : syskin 663 static uint8_t *
185 :     Interpolate16x16qpel(const int x, const int y, const int dir, const SearchData * const data)
186 : Isibaar 580 {
187 : syskin 663 // create or find a qpel-precision reference picture; return pointer to it
188 : syskin 668 uint8_t * Reference = (uint8_t *)data->RefQ + 16*dir;
189 : syskin 663 const int32_t iEdgedWidth = data->iEdgedWidth;
190 :     const uint32_t rounding = data->rounding;
191 :     const int halfpel_x = x/2;
192 :     const int halfpel_y = y/2;
193 : Isibaar 580 const uint8_t *ref1, *ref2, *ref3, *ref4;
194 :    
195 : syskin 740 ref1 = GetReference(halfpel_x, halfpel_y, dir, data);
196 : syskin 663 switch( ((x&1)<<1) + (y&1) ) {
197 :     case 0: // pure halfpel position
198 : syskin 740 return (uint8_t *) ref1;
199 : Isibaar 580 case 1: // x halfpel, y qpel - top or bottom during qpel refinement
200 : syskin 663 ref2 = GetReference(halfpel_x, y - halfpel_y, dir, data);
201 : Isibaar 665 interpolate8x8_avg2(Reference, ref1, ref2, iEdgedWidth, rounding, 8);
202 :     interpolate8x8_avg2(Reference+8, ref1+8, ref2+8, iEdgedWidth, rounding, 8);
203 :     interpolate8x8_avg2(Reference+8*iEdgedWidth, ref1+8*iEdgedWidth, ref2+8*iEdgedWidth, iEdgedWidth, rounding, 8);
204 :     interpolate8x8_avg2(Reference+8*iEdgedWidth+8, ref1+8*iEdgedWidth+8, ref2+8*iEdgedWidth+8, iEdgedWidth, rounding, 8);
205 : Isibaar 580 break;
206 :    
207 :     case 2: // x qpel, y halfpel - left or right during qpel refinement
208 : syskin 663 ref2 = GetReference(x - halfpel_x, halfpel_y, dir, data);
209 : Isibaar 665 interpolate8x8_avg2(Reference, ref1, ref2, iEdgedWidth, rounding, 8);
210 :     interpolate8x8_avg2(Reference+8, ref1+8, ref2+8, iEdgedWidth, rounding, 8);
211 :     interpolate8x8_avg2(Reference+8*iEdgedWidth, ref1+8*iEdgedWidth, ref2+8*iEdgedWidth, iEdgedWidth, rounding, 8);
212 :     interpolate8x8_avg2(Reference+8*iEdgedWidth+8, ref1+8*iEdgedWidth+8, ref2+8*iEdgedWidth+8, iEdgedWidth, rounding, 8);
213 : Isibaar 580 break;
214 :    
215 :     default: // x and y in qpel resolution - the "corners" (top left/right and
216 :     // bottom left/right) during qpel refinement
217 : syskin 663 ref2 = GetReference(halfpel_x, y - halfpel_y, dir, data);
218 :     ref3 = GetReference(x - halfpel_x, halfpel_y, dir, data);
219 :     ref4 = GetReference(x - halfpel_x, y - halfpel_y, dir, data);
220 : Isibaar 580 interpolate8x8_avg4(Reference, ref1, ref2, ref3, ref4, iEdgedWidth, rounding);
221 :     interpolate8x8_avg4(Reference+8, ref1+8, ref2+8, ref3+8, ref4+8, iEdgedWidth, rounding);
222 :     interpolate8x8_avg4(Reference+8*iEdgedWidth, ref1+8*iEdgedWidth, ref2+8*iEdgedWidth, ref3+8*iEdgedWidth, ref4+8*iEdgedWidth, iEdgedWidth, rounding);
223 :     interpolate8x8_avg4(Reference+8*iEdgedWidth+8, ref1+8*iEdgedWidth+8, ref2+8*iEdgedWidth+8, ref3+8*iEdgedWidth+8, ref4+8*iEdgedWidth+8, iEdgedWidth, rounding);
224 :     break;
225 :     }
226 : syskin 663 return Reference;
227 :     }
228 :    
229 :     /* CHECK_CANDIATE FUNCTIONS START */
230 :    
231 :     static void
232 :     CheckCandidate16(const int x, const int y, const int Direction, int * const dir, const SearchData * const data)
233 :     {
234 :     int t, xc, yc;
235 :     const uint8_t * Reference;
236 :     VECTOR * current;
237 :    
238 :     if (( x > data->max_dx) || ( x < data->min_dx)
239 :     || ( y > data->max_dy) || (y < data->min_dy)) return;
240 :    
241 :     if (data->qpel_precision) { // x and y are in 1/4 precision
242 :     Reference = Interpolate16x16qpel(x, y, 0, data);
243 :     xc = x/2; yc = y/2; //for chroma sad
244 :     current = data->currentQMV;
245 :     } else {
246 : syskin 712 Reference = GetReference(x, y, 0, data);
247 : syskin 663 current = data->currentMV;
248 :     xc = x; yc = y;
249 :     }
250 : syskin 724 t = d_mv_bits(x, y, data->predMV, data->iFcode, data->qpel && !data->qpel_precision, 0);
251 : Isibaar 580
252 : syskin 663 data->temp[0] = sad16v(data->Cur, Reference, data->iEdgedWidth, data->temp + 1);
253 : Isibaar 580
254 : syskin 628 data->temp[0] += (data->lambda16 * t * data->temp[0])/1000;
255 :     data->temp[1] += (data->lambda8 * t * (data->temp[1] + NEIGH_8X8_BIAS))/100;
256 : Isibaar 580
257 : syskin 663 if (data->chroma) data->temp[0] += ChromaSAD(xc, yc, data);
258 : syskin 628
259 : Isibaar 580 if (data->temp[0] < data->iMinSAD[0]) {
260 :     data->iMinSAD[0] = data->temp[0];
261 : syskin 663 current[0].x = x; current[0].y = y;
262 :     *dir = Direction; }
263 : Isibaar 580
264 :     if (data->temp[1] < data->iMinSAD[1]) {
265 : syskin 663 data->iMinSAD[1] = data->temp[1]; current[1].x = x; current[1].y= y; }
266 : Isibaar 580 if (data->temp[2] < data->iMinSAD[2]) {
267 : syskin 663 data->iMinSAD[2] = data->temp[2]; current[2].x = x; current[2].y = y; }
268 : Isibaar 580 if (data->temp[3] < data->iMinSAD[3]) {
269 : syskin 663 data->iMinSAD[3] = data->temp[3]; current[3].x = x; current[3].y = y; }
270 : Isibaar 580 if (data->temp[4] < data->iMinSAD[4]) {
271 : syskin 663 data->iMinSAD[4] = data->temp[4]; current[4].x = x; current[4].y = y; }
272 :    
273 : Isibaar 580 }
274 :    
275 :     static void
276 : syskin 704 CheckCandidate32(const int x, const int y, const int Direction, int * const dir, const SearchData * const data)
277 :     {
278 :     int t;
279 :     const uint8_t * Reference;
280 :    
281 :     if ( (!(x&1) && x !=0) || (!(y&1) && y !=0) || //non-zero integer value
282 :     ( x > data->max_dx) || ( x < data->min_dx)
283 :     || ( y > data->max_dy) || (y < data->min_dy)) return;
284 :    
285 : syskin 712 Reference = GetReference(x, y, 0, data);
286 : syskin 724 t = d_mv_bits(x, y, data->predMV, data->iFcode, 0, 1);
287 : syskin 704
288 :     data->temp[0] = sad32v_c(data->Cur, Reference, data->iEdgedWidth, data->temp + 1);
289 :    
290 :     data->temp[0] += (data->lambda16 * t * data->temp[0])/1000;
291 :     data->temp[1] += (data->lambda8 * t * (data->temp[1] + NEIGH_8X8_BIAS))/100;
292 :    
293 :     if (data->temp[0] < data->iMinSAD[0]) {
294 :     data->iMinSAD[0] = data->temp[0];
295 :     data->currentMV[0].x = x; data->currentMV[0].y = y;
296 :     *dir = Direction; }
297 :    
298 :     if (data->temp[1] < data->iMinSAD[1]) {
299 :     data->iMinSAD[1] = data->temp[1]; data->currentMV[1].x = x; data->currentMV[1].y = y; }
300 :     if (data->temp[2] < data->iMinSAD[2]) {
301 :     data->iMinSAD[2] = data->temp[2]; data->currentMV[2].x = x; data->currentMV[2].y = y; }
302 :     if (data->temp[3] < data->iMinSAD[3]) {
303 :     data->iMinSAD[3] = data->temp[3]; data->currentMV[3].x = x; data->currentMV[3].y = y; }
304 :     if (data->temp[4] < data->iMinSAD[4]) {
305 :     data->iMinSAD[4] = data->temp[4]; data->currentMV[4].x = x; data->currentMV[4].y = y; }
306 :     }
307 :    
308 :     static void
309 : syskin 663 CheckCandidate16no4v(const int x, const int y, const int Direction, int * const dir, const SearchData * const data)
310 : syskin 658 {
311 :     int32_t sad;
312 : syskin 663 const uint8_t * Reference;
313 :     int t;
314 :     VECTOR * current;
315 : syskin 658
316 :     if (( x > data->max_dx) || ( x < data->min_dx)
317 :     || ( y > data->max_dy) || (y < data->min_dy)) return;
318 :    
319 : syskin 712 if (data->rrv)
320 : syskin 704 if ( (!(x&1) && x !=0) || (!(y&1) && y !=0) ) return; //non-zero integer value
321 :    
322 : syskin 663 if (data->qpel_precision) { // x and y are in 1/4 precision
323 :     Reference = Interpolate16x16qpel(x, y, 0, data);
324 :     current = data->currentQMV;
325 :     } else {
326 : syskin 712 Reference = GetReference(x, y, 0, data);
327 : syskin 663 current = data->currentMV;
328 : syskin 658 }
329 : syskin 724 t = d_mv_bits(x, y, data->predMV, data->iFcode,
330 : syskin 712 data->qpel && !data->qpel_precision && !data->rrv, data->rrv);
331 : syskin 658
332 :     sad = sad16(data->Cur, Reference, data->iEdgedWidth, 256*4096);
333 : syskin 663 sad += (data->lambda16 * t * sad)/1000;
334 : syskin 658
335 : syskin 663 if (sad < *(data->iMinSAD)) {
336 :     *(data->iMinSAD) = sad;
337 :     current->x = x; current->y = y;
338 :     *dir = Direction; }
339 : syskin 658 }
340 :    
341 :     static void
342 : syskin 739 CheckCandidate32I(const int x, const int y, const int Direction, int * const dir, const SearchData * const data)
343 : Isibaar 539 {
344 : syskin 658 // maximum speed - for P/B/I decision
345 : Isibaar 539
346 :     if (( x > data->max_dx) || ( x < data->min_dx)
347 :     || ( y > data->max_dy) || (y < data->min_dy)) return;
348 :    
349 : syskin 739 data->temp[0] = sad32v_c(data->Cur, data->Ref + x/2 + (y/2)*(data->iEdgedWidth),
350 :     data->iEdgedWidth, data->temp+1);
351 :     if (data->temp[0] < *(data->iMinSAD)) {
352 :     *(data->iMinSAD) = data->temp[0];
353 : Isibaar 539 data->currentMV[0].x = x; data->currentMV[0].y = y;
354 :     *dir = Direction; }
355 : syskin 739 if (data->temp[1] < data->iMinSAD[1]) {
356 :     data->iMinSAD[1] = data->temp[1]; data->currentMV[1].x = x; data->currentMV[1].y = y; }
357 :     if (data->temp[2] < data->iMinSAD[2]) {
358 :     data->iMinSAD[2] = data->temp[2]; data->currentMV[2].x = x; data->currentMV[2].y = y; }
359 :     if (data->temp[3] < data->iMinSAD[3]) {
360 :     data->iMinSAD[3] = data->temp[3]; data->currentMV[3].x = x; data->currentMV[3].y = y; }
361 :     if (data->temp[4] < data->iMinSAD[4]) {
362 :     data->iMinSAD[4] = data->temp[4]; data->currentMV[4].x = x; data->currentMV[4].y = y; }
363 :    
364 : Isibaar 539 }
365 :    
366 :    
367 :     static void
368 : chl 530 CheckCandidateInt(const int xf, const int yf, const int Direction, int * const dir, const SearchData * const data)
369 :     {
370 :     int32_t sad;
371 : syskin 663 int xb, yb, t;
372 : chl 530 const uint8_t *ReferenceF, *ReferenceB;
373 : syskin 663 VECTOR *current;
374 : Isibaar 3
375 : chl 530 if (( xf > data->max_dx) || ( xf < data->min_dx)
376 :     || ( yf > data->max_dy) || (yf < data->min_dy)) return;
377 : Isibaar 3
378 : syskin 663 if (data->qpel_precision) {
379 :     ReferenceF = Interpolate16x16qpel(xf, yf, 0, data);
380 :     xb = data->currentQMV[1].x; yb = data->currentQMV[1].y;
381 :     current = data->currentQMV;
382 :     ReferenceB = Interpolate16x16qpel(xb, yb, 1, data);
383 :     } else {
384 : syskin 712 ReferenceF = GetReference(xf, yf, 0, data);
385 : syskin 663 xb = data->currentMV[1].x; yb = data->currentMV[1].y;
386 : syskin 712 ReferenceB = GetReference(xb, yb, 1, data);
387 : syskin 663 current = data->currentMV;
388 : chl 530 }
389 : edgomez 195
390 : syskin 724 t = d_mv_bits(xf, yf, data->predMV, data->iFcode, data->qpel && !data->qpel_precision, 0)
391 :     + d_mv_bits(xb, yb, data->bpredMV, data->iFcode, data->qpel && !data->qpel_precision, 0);
392 : syskin 712
393 : syskin 628 sad = sad16bi(data->Cur, ReferenceF, ReferenceB, data->iEdgedWidth);
394 : syskin 663 sad += (data->lambda16 * t * sad)/1000;
395 : syskin 628
396 : chl 530 if (sad < *(data->iMinSAD)) {
397 :     *(data->iMinSAD) = sad;
398 : syskin 663 current->x = xf; current->y = yf;
399 : chl 530 *dir = Direction; }
400 : Isibaar 3 }
401 :    
402 : chl 530 static void
403 :     CheckCandidateDirect(const int x, const int y, const int Direction, int * const dir, const SearchData * const data)
404 : Isibaar 3 {
405 : syskin 628 int32_t sad = 0;
406 : chl 530 int k;
407 :     const uint8_t *ReferenceF;
408 :     const uint8_t *ReferenceB;
409 :     VECTOR mvs, b_mvs;
410 : syskin 724 const VECTOR zeroMV={0,0};
411 : Isibaar 3
412 : chl 530 if (( x > 31) || ( x < -32) || ( y > 31) || (y < -32)) return;
413 : Isibaar 3
414 : chl 530 for (k = 0; k < 4; k++) {
415 :     mvs.x = data->directmvF[k].x + x;
416 :     b_mvs.x = ((x == 0) ?
417 :     data->directmvB[k].x
418 :     : mvs.x - data->referencemv[k].x);
419 : Isibaar 3
420 : chl 530 mvs.y = data->directmvF[k].y + y;
421 :     b_mvs.y = ((y == 0) ?
422 :     data->directmvB[k].y
423 :     : mvs.y - data->referencemv[k].y);
424 :    
425 :     if (( mvs.x > data->max_dx ) || ( mvs.x < data->min_dx )
426 :     || ( mvs.y > data->max_dy ) || ( mvs.y < data->min_dy )
427 :     || ( b_mvs.x > data->max_dx ) || ( b_mvs.x < data->min_dx )
428 :     || ( b_mvs.y > data->max_dy ) || ( b_mvs.y < data->min_dy )) return;
429 : Isibaar 3
430 : syskin 663 if (!data->qpel) {
431 :     mvs.x *= 2; mvs.y *= 2;
432 :     b_mvs.x *= 2; b_mvs.y *= 2; //we move to qpel precision anyway
433 : chl 530 }
434 : syskin 663 ReferenceF = Interpolate8x8qpel(mvs.x, mvs.y, k, 0, data);
435 :     ReferenceB = Interpolate8x8qpel(b_mvs.x, b_mvs.y, k, 1, data);
436 : chl 530
437 :     sad += sad8bi(data->Cur + 8*(k&1) + 8*(k>>1)*(data->iEdgedWidth),
438 : syskin 663 ReferenceF, ReferenceB,
439 : chl 530 data->iEdgedWidth);
440 :     if (sad > *(data->iMinSAD)) return;
441 : edgomez 78 }
442 : chl 530
443 : syskin 724 sad += (data->lambda16 * d_mv_bits(x, y, zeroMV, 1, 0, 0) * sad)/1000;
444 : syskin 628
445 : chl 530 if (sad < *(data->iMinSAD)) {
446 :     *(data->iMinSAD) = sad;
447 :     data->currentMV->x = x; data->currentMV->y = y;
448 :     *dir = Direction; }
449 : Isibaar 3 }
450 :    
451 : chl 530 static void
452 :     CheckCandidateDirectno4v(const int x, const int y, const int Direction, int * const dir, const SearchData * const data)
453 : chl 96 {
454 : chl 530 int32_t sad;
455 :     const uint8_t *ReferenceF;
456 :     const uint8_t *ReferenceB;
457 :     VECTOR mvs, b_mvs;
458 : syskin 724 const VECTOR zeroMV = {0,0};
459 : chl 96
460 : syskin 576 if (( x > 31) || ( x < -32) || ( y > 31) || (y < -32)) return;
461 : edgomez 195
462 : chl 530 mvs.x = data->directmvF[0].x + x;
463 :     b_mvs.x = ((x == 0) ?
464 :     data->directmvB[0].x
465 :     : mvs.x - data->referencemv[0].x);
466 : edgomez 195
467 : chl 530 mvs.y = data->directmvF[0].y + y;
468 :     b_mvs.y = ((y == 0) ?
469 :     data->directmvB[0].y
470 :     : mvs.y - data->referencemv[0].y);
471 :    
472 :     if (( mvs.x > data->max_dx ) || ( mvs.x < data->min_dx )
473 :     || ( mvs.y > data->max_dy ) || ( mvs.y < data->min_dy )
474 :     || ( b_mvs.x > data->max_dx ) || ( b_mvs.x < data->min_dx )
475 :     || ( b_mvs.y > data->max_dy ) || ( b_mvs.y < data->min_dy )) return;
476 : chl 96
477 : syskin 663 if (!data->qpel) {
478 :     mvs.x *= 2; mvs.y *= 2;
479 :     b_mvs.x *= 2; b_mvs.y *= 2; //we move to qpel precision anyway
480 : syskin 712 }
481 : syskin 663 ReferenceF = Interpolate16x16qpel(mvs.x, mvs.y, 0, data);
482 :     ReferenceB = Interpolate16x16qpel(b_mvs.x, b_mvs.y, 1, data);
483 : chl 96
484 : syskin 628 sad = sad16bi(data->Cur, ReferenceF, ReferenceB, data->iEdgedWidth);
485 : syskin 724 sad += (data->lambda16 * d_mv_bits(x, y, zeroMV, 1, 0, 0) * sad)/1000;
486 : chl 96
487 : chl 530 if (sad < *(data->iMinSAD)) {
488 :     *(data->iMinSAD) = sad;
489 :     data->currentMV->x = x; data->currentMV->y = y;
490 :     *dir = Direction; }
491 :     }
492 : chl 96
493 : chl 530 static void
494 :     CheckCandidate8(const int x, const int y, const int Direction, int * const dir, const SearchData * const data)
495 :     {
496 : syskin 628 int32_t sad; int t;
497 : chl 530 const uint8_t * Reference;
498 : edgomez 195
499 : chl 530 if (( x > data->max_dx) || ( x < data->min_dx)
500 :     || ( y > data->max_dy) || (y < data->min_dy)) return;
501 : chl 96
502 : syskin 663 if (data->qpel) Reference = Interpolate16x16qpel(x, y, 0, data);
503 : syskin 712 else Reference = GetReference(x, y, 0, data);
504 : edgomez 195
505 : chl 530 sad = sad8(data->Cur, Reference, data->iEdgedWidth);
506 : syskin 724 t = d_mv_bits(x, y, data->predMV, data->iFcode, data->qpel && !data->qpel_precision, 0);
507 : edgomez 195
508 : syskin 628 sad += (data->lambda8 * t * (sad+NEIGH_8X8_BIAS))/100;
509 : chl 96
510 : Isibaar 606 if (sad < *(data->iMinSAD)) {
511 :     *(data->iMinSAD) = sad;
512 :     data->currentMV->x = x; data->currentMV->y = y;
513 :     *dir = Direction; }
514 :     }
515 :    
516 : Isibaar 539 /* CHECK_CANDIATE FUNCTIONS END */
517 : chl 96
518 : chl 530 /* MAINSEARCH FUNCTIONS START */
519 : edgomez 195
520 : chl 530 static void
521 :     AdvDiamondSearch(int x, int y, const SearchData * const data, int bDirection)
522 : chl 181 {
523 :    
524 :     /* directions: 1 - left (x-1); 2 - right (x+1), 4 - up (y-1); 8 - down (y+1) */
525 :    
526 : syskin 712 int iDirection;
527 : edgomez 195
528 : syskin 712 for(;;) { //forever
529 :     iDirection = 0;
530 :     if (bDirection & 1) CHECK_CANDIDATE(x - iDiamondSize, y, 1);
531 :     if (bDirection & 2) CHECK_CANDIDATE(x + iDiamondSize, y, 2);
532 :     if (bDirection & 4) CHECK_CANDIDATE(x, y - iDiamondSize, 4);
533 :     if (bDirection & 8) CHECK_CANDIDATE(x, y + iDiamondSize, 8);
534 : chl 181
535 : syskin 712 /* now we're doing diagonal checks near our candidate */
536 : chl 181
537 : syskin 712 if (iDirection) { //checking if anything found
538 :     bDirection = iDirection;
539 :     iDirection = 0;
540 :     x = data->currentMV->x; y = data->currentMV->y;
541 :     if (bDirection & 3) { //our candidate is left or right
542 :     CHECK_CANDIDATE(x, y + iDiamondSize, 8);
543 :     CHECK_CANDIDATE(x, y - iDiamondSize, 4);
544 :     } else { // what remains here is up or down
545 :     CHECK_CANDIDATE(x + iDiamondSize, y, 2);
546 :     CHECK_CANDIDATE(x - iDiamondSize, y, 1);
547 :     }
548 : chl 181
549 : syskin 712 if (iDirection) {
550 :     bDirection += iDirection;
551 :     x = data->currentMV->x; y = data->currentMV->y;
552 : chl 181 }
553 : syskin 712 } else { //about to quit, eh? not so fast....
554 :     switch (bDirection) {
555 :     case 2:
556 :     CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2 + 4);
557 :     CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2 + 8);
558 :     break;
559 :     case 1:
560 :     CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1 + 4);
561 :     CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1 + 8);
562 :     break;
563 :     case 2 + 4:
564 :     CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1 + 4);
565 :     CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2 + 4);
566 :     CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2 + 8);
567 :     break;
568 :     case 4:
569 :     CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2 + 4);
570 :     CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1 + 4);
571 :     break;
572 :     case 8:
573 :     CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2 + 8);
574 :     CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1 + 8);
575 :     break;
576 :     case 1 + 4:
577 :     CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1 + 8);
578 :     CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1 + 4);
579 :     CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2 + 4);
580 :     break;
581 :     case 2 + 8:
582 :     CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1 + 4);
583 :     CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1 + 8);
584 :     CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2 + 8);
585 :     break;
586 :     case 1 + 8:
587 :     CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2 + 4);
588 :     CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2 + 8);
589 :     CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1 + 8);
590 :     break;
591 :     default: //1+2+4+8 == we didn't find anything at all
592 :     CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1 + 4);
593 :     CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1 + 8);
594 :     CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2 + 4);
595 :     CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2 + 8);
596 :     break;
597 :     }
598 :     if (!iDirection) break; //ok, the end. really
599 :     bDirection = iDirection;
600 :     x = data->currentMV->x; y = data->currentMV->y;
601 : chl 181 }
602 : syskin 712 }
603 : chl 181 }
604 :    
605 : chl 530 static void
606 :     SquareSearch(int x, int y, const SearchData * const data, int bDirection)
607 : chl 326 {
608 : chl 530 int iDirection;
609 : chl 326
610 : chl 530 do {
611 :     iDirection = 0;
612 :     if (bDirection & 1) CHECK_CANDIDATE(x - iDiamondSize, y, 1+16+64);
613 :     if (bDirection & 2) CHECK_CANDIDATE(x + iDiamondSize, y, 2+32+128);
614 :     if (bDirection & 4) CHECK_CANDIDATE(x, y - iDiamondSize, 4+16+32);
615 :     if (bDirection & 8) CHECK_CANDIDATE(x, y + iDiamondSize, 8+64+128);
616 :     if (bDirection & 16) CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1+4+16+32+64);
617 :     if (bDirection & 32) CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2+4+16+32+128);
618 :     if (bDirection & 64) CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1+8+16+64+128);
619 :     if (bDirection & 128) CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2+8+32+64+128);
620 : chl 326
621 : chl 530 bDirection = iDirection;
622 :     x = data->currentMV->x; y = data->currentMV->y;
623 :     } while (iDirection);
624 : chl 346 }
625 :    
626 : chl 530 static void
627 :     DiamondSearch(int x, int y, const SearchData * const data, int bDirection)
628 : chl 346 {
629 :    
630 : chl 181 /* directions: 1 - left (x-1); 2 - right (x+1), 4 - up (y-1); 8 - down (y+1) */
631 :    
632 : syskin 712 int iDirection;
633 : edgomez 195
634 : syskin 712 do {
635 :     iDirection = 0;
636 :     if (bDirection & 1) CHECK_CANDIDATE(x - iDiamondSize, y, 1);
637 :     if (bDirection & 2) CHECK_CANDIDATE(x + iDiamondSize, y, 2);
638 :     if (bDirection & 4) CHECK_CANDIDATE(x, y - iDiamondSize, 4);
639 :     if (bDirection & 8) CHECK_CANDIDATE(x, y + iDiamondSize, 8);
640 : chl 181
641 : syskin 712 /* now we're doing diagonal checks near our candidate */
642 : chl 181
643 : syskin 712 if (iDirection) { //checking if anything found
644 :     bDirection = iDirection;
645 :     iDirection = 0;
646 :     x = data->currentMV->x; y = data->currentMV->y;
647 :     if (bDirection & 3) { //our candidate is left or right
648 :     CHECK_CANDIDATE(x, y + iDiamondSize, 8);
649 :     CHECK_CANDIDATE(x, y - iDiamondSize, 4);
650 :     } else { // what remains here is up or down
651 :     CHECK_CANDIDATE(x + iDiamondSize, y, 2);
652 :     CHECK_CANDIDATE(x - iDiamondSize, y, 1);
653 : chl 181 }
654 : syskin 712 bDirection += iDirection;
655 :     x = data->currentMV->x; y = data->currentMV->y;
656 : chl 181 }
657 : syskin 712 }
658 :     while (iDirection);
659 : chl 181 }
660 :    
661 : chl 530 /* MAINSEARCH FUNCTIONS END */
662 : chl 181
663 : chl 530 /* HALFPELREFINE COULD BE A MAINSEARCH FUNCTION, BUT THERE IS NO NEED FOR IT */
664 :    
665 :     static void
666 : syskin 663 SubpelRefine(const SearchData * const data)
667 : chl 96 {
668 : syskin 663 /* Do a half-pel or q-pel refinement */
669 :     VECTOR backupMV;
670 : chl 530 int iDirection; //not needed
671 : chl 96
672 : syskin 663 if (data->qpel_precision)
673 :     backupMV = *(data->currentQMV);
674 :     else backupMV = *(data->currentMV);
675 : edgomez 195
676 : Isibaar 580 CHECK_CANDIDATE(backupMV.x - 1, backupMV.y - 1, 0);
677 :     CHECK_CANDIDATE(backupMV.x + 1, backupMV.y - 1, 0);
678 :     CHECK_CANDIDATE(backupMV.x - 1, backupMV.y + 1, 0);
679 :     CHECK_CANDIDATE(backupMV.x + 1, backupMV.y + 1, 0);
680 :    
681 :     CHECK_CANDIDATE(backupMV.x - 1, backupMV.y, 0);
682 :     CHECK_CANDIDATE(backupMV.x + 1, backupMV.y, 0);
683 :    
684 :     CHECK_CANDIDATE(backupMV.x, backupMV.y + 1, 0);
685 :     CHECK_CANDIDATE(backupMV.x, backupMV.y - 1, 0);
686 :     }
687 :    
688 : chl 530 static __inline int
689 :     SkipDecisionP(const IMAGE * current, const IMAGE * reference,
690 :     const int x, const int y,
691 : syskin 704 const uint32_t iEdgedWidth, const uint32_t iQuant, int rrv)
692 : chl 96
693 : Isibaar 3 {
694 : chl 530 /* keep repeating checks for all b-frames before this P frame,
695 :     to make sure that SKIP is possible (todo)
696 :     how: if skip is not possible set sad00 to a very high value */
697 : syskin 704 if(rrv) {
698 :     uint32_t sadC = sad16(current->u + x*16 + y*(iEdgedWidth/2)*16,
699 :     reference->u + x*16 + y*(iEdgedWidth/2)*16, iEdgedWidth/2, 256*4096);
700 :     if (sadC > iQuant * MAX_CHROMA_SAD_FOR_SKIP*4) return 0;
701 :     sadC += sad16(current->v + (x + y*(iEdgedWidth/2))*16,
702 :     reference->v + (x + y*(iEdgedWidth/2))*16, iEdgedWidth/2, 256*4096);
703 :     if (sadC > iQuant * MAX_CHROMA_SAD_FOR_SKIP*4) return 0;
704 :     return 1;
705 :     } else {
706 :     uint32_t sadC = sad8(current->u + x*8 + y*(iEdgedWidth/2)*8,
707 :     reference->u + x*8 + y*(iEdgedWidth/2)*8, iEdgedWidth/2);
708 :     if (sadC > iQuant * MAX_CHROMA_SAD_FOR_SKIP) return 0;
709 :     sadC += sad8(current->v + (x + y*(iEdgedWidth/2))*8,
710 :     reference->v + (x + y*(iEdgedWidth/2))*8, iEdgedWidth/2);
711 :     if (sadC > iQuant * MAX_CHROMA_SAD_FOR_SKIP) return 0;
712 :     return 1;
713 :     }
714 : chl 530 }
715 : edgomez 195
716 : chl 530 static __inline void
717 :     SkipMacroblockP(MACROBLOCK *pMB, const int32_t sad)
718 :     {
719 :     pMB->mode = MODE_NOT_CODED;
720 : Isibaar 539 pMB->mvs[0].x = pMB->mvs[1].x = pMB->mvs[2].x = pMB->mvs[3].x = 0;
721 :     pMB->mvs[0].y = pMB->mvs[1].y = pMB->mvs[2].y = pMB->mvs[3].y = 0;
722 : syskin 628
723 : Isibaar 580 pMB->qmvs[0].x = pMB->qmvs[1].x = pMB->qmvs[2].x = pMB->qmvs[3].x = 0;
724 :     pMB->qmvs[0].y = pMB->qmvs[1].y = pMB->qmvs[2].y = pMB->qmvs[3].y = 0;
725 :    
726 : chl 530 pMB->sad16 = pMB->sad8[0] = pMB->sad8[1] = pMB->sad8[2] = pMB->sad8[3] = sad;
727 : Isibaar 3 }
728 :    
729 : syskin 628 bool
730 : chl 530 MotionEstimation(MBParam * const pParam,
731 :     FRAMEINFO * const current,
732 :     FRAMEINFO * const reference,
733 :     const IMAGE * const pRefH,
734 :     const IMAGE * const pRefV,
735 :     const IMAGE * const pRefHV,
736 :     const uint32_t iLimit)
737 : Isibaar 3 {
738 : chl 530 MACROBLOCK *const pMBs = current->mbs;
739 :     const IMAGE *const pCurrent = &current->image;
740 :     const IMAGE *const pRef = &reference->image;
741 : Isibaar 3
742 : chl 530 const VECTOR zeroMV = { 0, 0 };
743 : Isibaar 3
744 : syskin 704 uint32_t mb_width = pParam->mb_width;
745 :     uint32_t mb_height = pParam->mb_height;
746 : suxen_drol 702
747 : chl 530 uint32_t x, y;
748 :     uint32_t iIntra = 0;
749 : syskin 628 int32_t InterBias, quant = current->quant, sad00;
750 : Isibaar 580 uint8_t *qimage;
751 : edgomez 195
752 : Isibaar 539 // some pre-initialized thingies for SearchP
753 : syskin 712 int32_t temp[8];
754 : Isibaar 539 VECTOR currentMV[5];
755 : Isibaar 580 VECTOR currentQMV[5];
756 : Isibaar 539 int32_t iMinSAD[5];
757 :     SearchData Data;
758 : syskin 704 memset(&Data, 0, sizeof(SearchData));
759 : Isibaar 539 Data.iEdgedWidth = pParam->edged_width;
760 :     Data.currentMV = currentMV;
761 : Isibaar 580 Data.currentQMV = currentQMV;
762 : Isibaar 539 Data.iMinSAD = iMinSAD;
763 :     Data.temp = temp;
764 :     Data.iFcode = current->fcode;
765 : Isibaar 580 Data.rounding = pParam->m_rounding_type;
766 : syskin 628 Data.qpel = pParam->m_quarterpel;
767 :     Data.chroma = current->global_flags & XVID_ME_COLOUR;
768 : syskin 704 Data.rrv = current->global_flags & XVID_REDUCED;
769 : Isibaar 539
770 : syskin 704 if ((current->global_flags & XVID_REDUCED)) {
771 : suxen_drol 702 mb_width = (pParam->width + 31) / 32;
772 :     mb_height = (pParam->height + 31) / 32;
773 : syskin 704 Data.qpel = Data.chroma = 0;
774 : suxen_drol 702 }
775 :    
776 : Isibaar 580 if((qimage = (uint8_t *) malloc(32 * pParam->edged_width)) == NULL)
777 : syskin 594 return 1; // allocate some mem for qpel interpolated blocks
778 : Isibaar 580 // somehow this is dirty since I think we shouldn't use malloc outside
779 :     // encoder_create() - so please fix me!
780 : syskin 628 Data.RefQ = qimage;
781 : chl 530 if (sadInit) (*sadInit) ();
782 : edgomez 195
783 : suxen_drol 702 for (y = 0; y < mb_height; y++) {
784 :     for (x = 0; x < mb_width; x++) {
785 : chl 530 MACROBLOCK *pMB = &pMBs[x + y * pParam->mb_width];
786 : syskin 628
787 : syskin 704 if (Data.rrv) pMB->sad16 =
788 :     sad32v_c(pCurrent->y + (x + y * pParam->edged_width) * 32,
789 :     pRef->y + (x + y * pParam->edged_width) * 32,
790 :     pParam->edged_width, pMB->sad8 );
791 :    
792 :     else pMB->sad16 =
793 :     sad16v(pCurrent->y + (x + y * pParam->edged_width) * 16,
794 : chl 530 pRef->y + (x + y * pParam->edged_width) * 16,
795 :     pParam->edged_width, pMB->sad8 );
796 : edgomez 195
797 : syskin 628 if (Data.chroma) {
798 :     pMB->sad16 += sad8(pCurrent->u + x*8 + y*(pParam->edged_width/2)*8,
799 :     pRef->u + x*8 + y*(pParam->edged_width/2)*8, pParam->edged_width/2);
800 :    
801 :     pMB->sad16 += sad8(pCurrent->v + (x + y*(pParam->edged_width/2))*8,
802 :     pRef->v + (x + y*(pParam->edged_width/2))*8, pParam->edged_width/2);
803 :     }
804 :    
805 :     sad00 = pMB->sad16; //if no gmc; else sad00 = (..)
806 :    
807 : chl 530 if (!(current->global_flags & XVID_LUMIMASKING)) {
808 :     pMB->dquant = NO_CHANGE;
809 : syskin 601 pMB->quant = current->quant;
810 :     } else {
811 : syskin 574 if (pMB->dquant != NO_CHANGE) {
812 :     quant += DQtab[pMB->dquant];
813 :     if (quant > 31) quant = 31;
814 :     else if (quant < 1) quant = 1;
815 :     }
816 : syskin 601 pMB->quant = quant;
817 :     }
818 : chl 181
819 : syskin 628 //initial skip decision
820 : chl 619 /* no early skip for GMC (global vector = skip vector is unknown!) */
821 :     if (current->coding_type == P_VOP) { /* no fast SKIP for S(GMC)-VOPs */
822 : syskin 704 if (pMB->dquant == NO_CHANGE && sad00 < pMB->quant * INITIAL_SKIP_THRESH * (Data.rrv ? 4:1) )
823 :     if (Data.chroma || SkipDecisionP(pCurrent, pRef, x, y, pParam->edged_width, pMB->quant, Data.rrv)) {
824 : chl 619 SkipMacroblockP(pMB, sad00);
825 :     continue;
826 :     }
827 :     }
828 : syskin 628
829 :     SearchP(pRef, pRefH->y, pRefV->y, pRefHV->y, pCurrent, x,
830 : chl 530 y, current->motion_flags, pMB->quant,
831 : Isibaar 539 &Data, pParam, pMBs, reference->mbs,
832 : chl 530 current->global_flags & XVID_INTER4V, pMB);
833 : edgomez 195
834 : chl 530 /* final skip decision, a.k.a. "the vector you found, really that good?" */
835 : chl 619 if (current->coding_type == P_VOP) {
836 :     if ( (pMB->dquant == NO_CHANGE) && (sad00 < pMB->quant * MAX_SAD00_FOR_SKIP)
837 : syskin 704 && ((100*pMB->sad16)/(sad00+1) > FINAL_SKIP_THRESH * (Data.rrv ? 4:1)) )
838 :     if (Data.chroma || SkipDecisionP(pCurrent, pRef, x, y, pParam->edged_width, pMB->quant, Data.rrv)) {
839 : chl 619 SkipMacroblockP(pMB, sad00);
840 :     continue;
841 :     }
842 :     }
843 : syskin 628
844 : chl 530 /* finally, intra decision */
845 : Isibaar 3
846 : chl 530 InterBias = MV16_INTER_BIAS;
847 : syskin 639 if (pMB->quant > 8) InterBias += 100 * (pMB->quant - 8); // to make high quants work
848 : chl 530 if (y != 0)
849 : syskin 639 if ((pMB - pParam->mb_width)->mode == MODE_INTRA ) InterBias -= 80;
850 : chl 530 if (x != 0)
851 : syskin 639 if ((pMB - 1)->mode == MODE_INTRA ) InterBias -= 80;
852 : syskin 628
853 :     if (Data.chroma) InterBias += 50; // to compensate bigger SAD
854 : syskin 704 if (Data.rrv) InterBias *= 4; //??
855 : Isibaar 3
856 : chl 530 if (InterBias < pMB->sad16) {
857 : syskin 704 int32_t deviation;
858 :     if (Data.rrv) {
859 :     deviation = dev16(pCurrent->y + (x + y * pParam->edged_width) * 32,
860 :     pParam->edged_width)
861 :     + dev16(pCurrent->y + (x + y * pParam->edged_width) * 32 + 16,
862 :     pParam->edged_width)
863 :     + dev16(pCurrent->y + (x + y * pParam->edged_width) * 32 + 16 * pParam->edged_width,
864 :     pParam->edged_width)
865 :     + dev16(pCurrent->y + (x + y * pParam->edged_width) * 32 + 16 * (pParam->edged_width+1),
866 :     pParam->edged_width);
867 :     } else
868 :     deviation = dev16(pCurrent->y + (x + y * pParam->edged_width) * 16,
869 : chl 530 pParam->edged_width);
870 : Isibaar 3
871 : syskin 704 if (deviation < (pMB->sad16 - InterBias)) {
872 : Isibaar 580 if (++iIntra >= iLimit) { free(qimage); return 1; }
873 : chl 530 pMB->mode = MODE_INTRA;
874 : Isibaar 539 pMB->mvs[0] = pMB->mvs[1] = pMB->mvs[2] =
875 :     pMB->mvs[3] = zeroMV;
876 : Isibaar 580 pMB->qmvs[0] = pMB->qmvs[1] = pMB->qmvs[2] =
877 :     pMB->qmvs[3] = zeroMV;
878 : chl 530 pMB->sad16 = pMB->sad8[0] = pMB->sad8[1] = pMB->sad8[2] =
879 :     pMB->sad8[3] = 0;
880 :     }
881 :     }
882 :     }
883 : Isibaar 3 }
884 : Isibaar 580 free(qimage);
885 : chl 619
886 :     if (current->coding_type == S_VOP) /* first GMC step only for S(GMC)-VOPs */
887 : syskin 628 current->GMC_MV = GlobalMotionEst( pMBs, pParam, current->fcode );
888 : chl 619 else
889 :     current->GMC_MV = zeroMV;
890 :    
891 : syskin 628 return 0;
892 : chl 530 }
893 : Isibaar 3
894 : edgomez 195
895 : chl 530 #define PMV_HALFPEL16 (PMV_HALFPELDIAMOND16|PMV_HALFPELREFINE16)
896 : Isibaar 3
897 : chl 530 static __inline int
898 :     make_mask(const VECTOR * const pmv, const int i)
899 :     {
900 : Isibaar 539 int mask = 255, j;
901 : chl 530 for (j = 0; j < i; j++) {
902 :     if (MVequal(pmv[i], pmv[j])) return 0; // same vector has been checked already
903 :     if (pmv[i].x == pmv[j].x) {
904 :     if (pmv[i].y == pmv[j].y + iDiamondSize) { mask &= ~4; continue; }
905 :     if (pmv[i].y == pmv[j].y - iDiamondSize) { mask &= ~8; continue; }
906 :     } else
907 :     if (pmv[i].y == pmv[j].y) {
908 :     if (pmv[i].x == pmv[j].x + iDiamondSize) { mask &= ~1; continue; }
909 :     if (pmv[i].x == pmv[j].x - iDiamondSize) { mask &= ~2; continue; }
910 :     }
911 : Isibaar 3 }
912 : chl 530 return mask;
913 :     }
914 : edgomez 195
915 : chl 530 static __inline void
916 : syskin 704 PreparePredictionsP(VECTOR * const pmv, int x, int y, int iWcount,
917 :     int iHcount, const MACROBLOCK * const prevMB, int rrv)
918 : chl 530 {
919 : edgomez 195
920 : chl 530 //this function depends on get_pmvdata which means that it sucks. It should get the predictions by itself
921 : syskin 704 if (rrv) { iWcount /= 2; iHcount /= 2; }
922 : edgomez 195
923 : syskin 704 if ( (y != 0) && (x < (iWcount-1)) ) { // [5] top-right neighbour
924 : chl 530 pmv[5].x = EVEN(pmv[3].x);
925 : Isibaar 539 pmv[5].y = EVEN(pmv[3].y);
926 :     } else pmv[5].x = pmv[5].y = 0;
927 : chl 169
928 : chl 530 if (x != 0) { pmv[3].x = EVEN(pmv[1].x); pmv[3].y = EVEN(pmv[1].y); }// pmv[3] is left neighbour
929 :     else pmv[3].x = pmv[3].y = 0;
930 : Isibaar 3
931 : chl 530 if (y != 0) { pmv[4].x = EVEN(pmv[2].x); pmv[4].y = EVEN(pmv[2].y); }// [4] top neighbour
932 :     else pmv[4].x = pmv[4].y = 0;
933 : chl 169
934 : chl 530 // [1] median prediction
935 : syskin 704 if (rrv) { //median is in halfzero-precision
936 :     pmv[1].x = RRV_MV_SCALEUP(pmv[0].x);
937 :     pmv[1].y = RRV_MV_SCALEUP(pmv[0].y);
938 :     } else { pmv[1].x = EVEN(pmv[0].x); pmv[1].y = EVEN(pmv[0].y); }
939 : chl 169
940 : chl 530 pmv[0].x = pmv[0].y = 0; // [0] is zero; not used in the loop (checked before) but needed here for make_mask
941 : chl 169
942 : chl 530 pmv[2].x = EVEN(prevMB->mvs[0].x); // [2] is last frame
943 :     pmv[2].y = EVEN(prevMB->mvs[0].y);
944 : chl 169
945 : syskin 704 if ((x < iWcount-1) && (y < iHcount-1)) {
946 : chl 530 pmv[6].x = EVEN((prevMB+1+iWcount)->mvs[0].x); //[6] right-down neighbour in last frame
947 : Isibaar 539 pmv[6].y = EVEN((prevMB+1+iWcount)->mvs[0].y);
948 :     } else pmv[6].x = pmv[6].y = 0;
949 : syskin 704
950 :     if (rrv) {
951 :     int i;
952 :     for (i = 0; i < 7; i++) {
953 :     pmv[i].x = RRV_MV_SCALEDOWN(pmv[i].x);
954 :     pmv[i].x = RRV_MV_SCALEUP(pmv[i].x); // a trick
955 :     }
956 :     }
957 : chl 530 }
958 : chl 169
959 : chl 530 static void
960 : syskin 628 SearchP(const IMAGE * const pRef,
961 : chl 530 const uint8_t * const pRefH,
962 :     const uint8_t * const pRefV,
963 :     const uint8_t * const pRefHV,
964 :     const IMAGE * const pCur,
965 :     const int x,
966 :     const int y,
967 :     const uint32_t MotionFlags,
968 :     const uint32_t iQuant,
969 : Isibaar 539 SearchData * const Data,
970 : chl 530 const MBParam * const pParam,
971 :     const MACROBLOCK * const pMBs,
972 :     const MACROBLOCK * const prevMBs,
973 :     int inter4v,
974 :     MACROBLOCK * const pMB)
975 :     {
976 : chl 169
977 : chl 530 int i, iDirection = 255, mask, threshA;
978 : Isibaar 539 VECTOR pmv[7];
979 : Isibaar 3
980 : syskin 712 get_range(&Data->min_dx, &Data->max_dx, &Data->min_dy, &Data->max_dy, x, y, 16,
981 :     pParam->width, pParam->height, Data->iFcode - Data->qpel, 0, Data->rrv);
982 : Isibaar 3
983 : syskin 712 get_pmvdata2(pMBs, pParam->mb_width, 0, x, y, 0, pmv, Data->temp); //has to be changed to get_pmv(2)()
984 : syskin 628
985 : syskin 712 Data->temp[5] = Data->temp[7] = 256*4096; // to reset chroma-sad cache
986 : syskin 704 if (Data->rrv) i = 2; else i = 1;
987 :     Data->Cur = pCur->y + (x + y * Data->iEdgedWidth) * 16*i;
988 :     Data->CurV = pCur->v + (x + y * (Data->iEdgedWidth/2)) * 8*i;
989 :     Data->CurU = pCur->u + (x + y * (Data->iEdgedWidth/2)) * 8*i;
990 : Isibaar 3
991 : syskin 704 Data->Ref = pRef->y + (x + Data->iEdgedWidth*y) * 16*i;
992 :     Data->RefH = pRefH + (x + Data->iEdgedWidth*y) * 16*i;
993 :     Data->RefV = pRefV + (x + Data->iEdgedWidth*y) * 16*i;
994 :     Data->RefHV = pRefHV + (x + Data->iEdgedWidth*y) * 16*i;
995 :     Data->RefCV = pRef->v + (x + y * (Data->iEdgedWidth/2)) * 8*i;
996 :     Data->RefCU = pRef->u + (x + y * (Data->iEdgedWidth/2)) * 8*i;
997 :    
998 : syskin 601 Data->lambda16 = lambda_vec16[iQuant];
999 : Isibaar 606 Data->lambda8 = lambda_vec8[iQuant];
1000 : syskin 663 Data->qpel_precision = 0;
1001 : chl 169
1002 : edgomez 568 if (pMB->dquant != NO_CHANGE) inter4v = 0;
1003 : edgomez 195
1004 : Isibaar 580 for(i = 0; i < 5; i++)
1005 :     Data->currentMV[i].x = Data->currentMV[i].y = 0;
1006 : Isibaar 539
1007 : syskin 663 if (pParam->m_quarterpel) Data->predMV = get_qpmv2(pMBs, pParam->mb_width, 0, x, y, 0);
1008 :     else Data->predMV = pmv[0];
1009 : Isibaar 606
1010 : syskin 724 i = d_mv_bits(0, 0, Data->predMV, Data->iFcode, 0, 0);
1011 : syskin 628 Data->iMinSAD[0] = pMB->sad16 + (Data->lambda16 * i * pMB->sad16)/1000;
1012 :     Data->iMinSAD[1] = pMB->sad8[0] + (Data->lambda8 * i * (pMB->sad8[0]+NEIGH_8X8_BIAS))/100;
1013 : Isibaar 539 Data->iMinSAD[2] = pMB->sad8[1];
1014 :     Data->iMinSAD[3] = pMB->sad8[2];
1015 :     Data->iMinSAD[4] = pMB->sad8[3];
1016 :    
1017 : chl 530 if ((x == 0) && (y == 0)) threshA = 512;
1018 :     else {
1019 : edgomez 568 threshA = Data->temp[0]; // that's when we keep this SAD atm
1020 : chl 530 if (threshA < 512) threshA = 512;
1021 :     if (threshA > 1024) threshA = 1024; }
1022 : Isibaar 3
1023 : chl 530 PreparePredictionsP(pmv, x, y, pParam->mb_width, pParam->mb_height,
1024 : syskin 704 prevMBs + x + y * pParam->mb_width, Data->rrv);
1025 : edgomez 195
1026 : syskin 704 if (Data->rrv) CheckCandidate = CheckCandidate32;
1027 :     else if (inter4v || Data->chroma) CheckCandidate = CheckCandidate16;
1028 :     else CheckCandidate = CheckCandidate16no4v; //for extra speed
1029 : edgomez 568
1030 : chl 530 /* main loop. checking all predictions */
1031 :    
1032 :     for (i = 1; i < 7; i++) {
1033 :     if (!(mask = make_mask(pmv, i)) ) continue;
1034 : edgomez 568 (*CheckCandidate)(pmv[i].x, pmv[i].y, mask, &iDirection, Data);
1035 : Isibaar 539 if (Data->iMinSAD[0] <= threshA) break;
1036 : chl 530 }
1037 :    
1038 : Isibaar 539 if ((Data->iMinSAD[0] <= threshA) ||
1039 :     (MVequal(Data->currentMV[0], (prevMBs+x+y*pParam->mb_width)->mvs[0]) &&
1040 :     (Data->iMinSAD[0] < (prevMBs+x+y*pParam->mb_width)->sad16))) {
1041 : chl 530 inter4v = 0;
1042 : Isibaar 539 } else {
1043 : Isibaar 3
1044 : syskin 712 MainSearchFunc * MainSearchPtr;
1045 : Isibaar 539 if (MotionFlags & PMV_USESQUARES16) MainSearchPtr = SquareSearch;
1046 :     else if (MotionFlags & PMV_ADVANCEDDIAMOND16) MainSearchPtr = AdvDiamondSearch;
1047 :     else MainSearchPtr = DiamondSearch;
1048 : chl 181
1049 : Isibaar 539 (*MainSearchPtr)(Data->currentMV->x, Data->currentMV->y, Data, iDirection);
1050 : Isibaar 3
1051 : chl 530 /* extended search, diamond starting in 0,0 and in prediction.
1052 :     note that this search is/might be done in halfpel positions,
1053 :     which makes it more different than the diamond above */
1054 : chl 259
1055 : Isibaar 539 if (MotionFlags & PMV_EXTSEARCH16) {
1056 :     int32_t bSAD;
1057 :     VECTOR startMV = Data->predMV, backupMV = Data->currentMV[0];
1058 : syskin 704 if (Data->rrv) {
1059 :     startMV.x = RRV_MV_SCALEUP(startMV.x);
1060 :     startMV.y = RRV_MV_SCALEUP(startMV.y);
1061 :     } else
1062 :     if (!(MotionFlags & PMV_HALFPELREFINE16)) // who's gonna use extsearch and no halfpel?
1063 :     startMV.x = EVEN(startMV.x); startMV.y = EVEN(startMV.y);
1064 : Isibaar 539 if (!(MVequal(startMV, backupMV))) {
1065 :     bSAD = Data->iMinSAD[0]; Data->iMinSAD[0] = MV_MAX_ERROR;
1066 : Isibaar 3
1067 : Isibaar 606 (*CheckCandidate)(startMV.x, startMV.y, 255, &iDirection, Data);
1068 : Isibaar 539 (*MainSearchPtr)(startMV.x, startMV.y, Data, 255);
1069 :     if (bSAD < Data->iMinSAD[0]) {
1070 :     Data->currentMV[0] = backupMV;
1071 :     Data->iMinSAD[0] = bSAD; }
1072 :     }
1073 : Isibaar 3
1074 : Isibaar 539 backupMV = Data->currentMV[0];
1075 : syskin 704 if (!MotionFlags & PMV_HALFPELREFINE16 || Data->rrv) startMV.x = startMV.y = 0;
1076 :     else startMV.x = startMV.y = 1;
1077 : Isibaar 539 if (!(MVequal(startMV, backupMV))) {
1078 :     bSAD = Data->iMinSAD[0]; Data->iMinSAD[0] = MV_MAX_ERROR;
1079 : edgomez 195
1080 : Isibaar 606 (*CheckCandidate)(startMV.x, startMV.y, 255, &iDirection, Data);
1081 : Isibaar 539 (*MainSearchPtr)(startMV.x, startMV.y, Data, 255);
1082 :     if (bSAD < Data->iMinSAD[0]) {
1083 :     Data->currentMV[0] = backupMV;
1084 :     Data->iMinSAD[0] = bSAD; }
1085 :     }
1086 : Isibaar 3 }
1087 :     }
1088 :    
1089 : syskin 663 if (MotionFlags & PMV_HALFPELREFINE16) SubpelRefine(Data);
1090 : Isibaar 3
1091 : Isibaar 580 for(i = 0; i < 5; i++) {
1092 :     Data->currentQMV[i].x = 2 * Data->currentMV[i].x; // initialize qpel vectors
1093 :     Data->currentQMV[i].y = 2 * Data->currentMV[i].y;
1094 :     }
1095 :    
1096 : syskin 704 if((!Data->rrv) && (pParam->m_quarterpel) && (MotionFlags & PMV_QUARTERPELREFINE16)) {
1097 : Isibaar 580
1098 : syskin 663 Data->qpel_precision = 1;
1099 : syskin 712 get_range(&Data->min_dx, &Data->max_dx, &Data->min_dy, &Data->max_dy, x, y, 16,
1100 :     pParam->width, pParam->height, Data->iFcode, 1, 0);
1101 : syskin 601
1102 : syskin 663 SubpelRefine(Data);
1103 : Isibaar 580 }
1104 :    
1105 : syskin 628 if (Data->iMinSAD[0] < (int32_t)iQuant * 30 ) inter4v = 0;
1106 : Isibaar 539 if (inter4v) {
1107 :     SearchData Data8;
1108 :     Data8.iFcode = Data->iFcode;
1109 : Isibaar 606 Data8.lambda8 = Data->lambda8;
1110 : Isibaar 539 Data8.iEdgedWidth = Data->iEdgedWidth;
1111 : Isibaar 606 Data8.RefQ = Data->RefQ;
1112 : syskin 628 Data8.qpel = Data->qpel;
1113 : syskin 704 Data8.rrv = Data->rrv;
1114 : Isibaar 539 Search8(Data, 2*x, 2*y, MotionFlags, pParam, pMB, pMBs, 0, &Data8);
1115 :     Search8(Data, 2*x + 1, 2*y, MotionFlags, pParam, pMB, pMBs, 1, &Data8);
1116 :     Search8(Data, 2*x, 2*y + 1, MotionFlags, pParam, pMB, pMBs, 2, &Data8);
1117 :     Search8(Data, 2*x + 1, 2*y + 1, MotionFlags, pParam, pMB, pMBs, 3, &Data8);
1118 : syskin 628
1119 :     if (Data->chroma) {
1120 : syskin 663 int sumx, sumy, dx, dy;
1121 : syskin 628
1122 :     if(pParam->m_quarterpel) {
1123 : syskin 663 sumx= pMB->qmvs[0].x/2 + pMB->qmvs[1].x/2 + pMB->qmvs[2].x/2 + pMB->qmvs[3].x/2;
1124 :     sumy = pMB->qmvs[0].y/2 + pMB->qmvs[1].y/2 + pMB->qmvs[2].y/2 + pMB->qmvs[3].y/2;
1125 :     } else {
1126 :     sumx = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x;
1127 :     sumy = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y;
1128 :     }
1129 :     dx = (sumx >> 3) + roundtab_76[sumx & 0xf];
1130 :     dy = (sumy >> 3) + roundtab_76[sumy & 0xf];
1131 : syskin 628
1132 :     Data->iMinSAD[1] += ChromaSAD(dx, dy, Data);
1133 :     }
1134 : Isibaar 539 }
1135 : Isibaar 3
1136 : syskin 704 if (Data->rrv) {
1137 :     Data->currentMV[0].x = RRV_MV_SCALEDOWN(Data->currentMV[0].x);
1138 :     Data->currentMV[0].y = RRV_MV_SCALEDOWN(Data->currentMV[0].y);
1139 :     }
1140 : syskin 740
1141 : chl 530 if (!(inter4v) ||
1142 : Isibaar 539 (Data->iMinSAD[0] < Data->iMinSAD[1] + Data->iMinSAD[2] +
1143 :     Data->iMinSAD[3] + Data->iMinSAD[4] + IMV16X16 * (int32_t)iQuant )) {
1144 : chl 530 // INTER MODE
1145 :     pMB->mode = MODE_INTER;
1146 : Isibaar 539 pMB->mvs[0] = pMB->mvs[1]
1147 :     = pMB->mvs[2] = pMB->mvs[3] = Data->currentMV[0];
1148 : Isibaar 3
1149 : chl 530 pMB->sad16 = pMB->sad8[0] = pMB->sad8[1] =
1150 : Isibaar 539 pMB->sad8[2] = pMB->sad8[3] = Data->iMinSAD[0];
1151 : Isibaar 3
1152 : Isibaar 580 if(pParam->m_quarterpel) {
1153 : syskin 663 pMB->qmvs[0] = pMB->qmvs[1]
1154 :     = pMB->qmvs[2] = pMB->qmvs[3] = Data->currentQMV[0];
1155 :     pMB->pmvs[0].x = Data->currentQMV[0].x - Data->predMV.x;
1156 :     pMB->pmvs[0].y = Data->currentQMV[0].y - Data->predMV.y;
1157 : syskin 628 } else {
1158 : Isibaar 580 pMB->pmvs[0].x = Data->currentMV[0].x - Data->predMV.x;
1159 :     pMB->pmvs[0].y = Data->currentMV[0].y - Data->predMV.y;
1160 :     }
1161 : edgomez 195 } else {
1162 : chl 530 // INTER4V MODE; all other things are already set in Search8
1163 :     pMB->mode = MODE_INTER4V;
1164 : Isibaar 539 pMB->sad16 = Data->iMinSAD[1] + Data->iMinSAD[2] +
1165 :     Data->iMinSAD[3] + Data->iMinSAD[4] + IMV16X16 * iQuant;
1166 : edgomez 78 }
1167 : Isibaar 3 }
1168 :    
1169 : chl 530 static void
1170 :     Search8(const SearchData * const OldData,
1171 :     const int x, const int y,
1172 :     const uint32_t MotionFlags,
1173 :     const MBParam * const pParam,
1174 :     MACROBLOCK * const pMB,
1175 :     const MACROBLOCK * const pMBs,
1176 : Isibaar 539 const int block,
1177 :     SearchData * const Data)
1178 : chl 345 {
1179 : syskin 704 int i = 0;
1180 : Isibaar 539 Data->iMinSAD = OldData->iMinSAD + 1 + block;
1181 :     Data->currentMV = OldData->currentMV + 1 + block;
1182 : Isibaar 580 Data->currentQMV = OldData->currentQMV + 1 + block;
1183 : chl 345
1184 : syskin 601 if(pParam->m_quarterpel) {
1185 : syskin 704 Data->predMV = get_qpmv2(pMBs, pParam->mb_width, 0, x/2, y/2, block);
1186 : syskin 724 if (block != 0) i = d_mv_bits( Data->currentQMV->x, Data->currentQMV->y,
1187 :     Data->predMV, Data->iFcode, 0, 0);
1188 : syskin 712
1189 : Isibaar 606 } else {
1190 : syskin 704 Data->predMV = get_pmv2(pMBs, pParam->mb_width, 0, x/2, y/2, block);
1191 :     if (block != 0) {
1192 : syskin 724 if (block != 0) i = d_mv_bits( Data->currentMV->x, Data->currentMV->y,
1193 :     Data->predMV, Data->iFcode, 0, Data->rrv);
1194 : syskin 704 }
1195 : Isibaar 606 }
1196 : chl 345
1197 : syskin 704 *(Data->iMinSAD) += (Data->lambda8 * i * (*Data->iMinSAD + NEIGH_8X8_BIAS))/100;
1198 :    
1199 : chl 530 if (MotionFlags & (PMV_EXTSEARCH8|PMV_HALFPELREFINE8)) {
1200 : syskin 704 if (Data->rrv) i = 2; else i = 1;
1201 : chl 345
1202 : syskin 704 Data->Ref = OldData->Ref + i*8 * ((block&1) + pParam->edged_width*(block>>1));
1203 :     Data->RefH = OldData->RefH + i*8 * ((block&1) + pParam->edged_width*(block>>1));
1204 :     Data->RefV = OldData->RefV + i*8 * ((block&1) + pParam->edged_width*(block>>1));
1205 :     Data->RefHV = OldData->RefHV + i*8 * ((block&1) + pParam->edged_width*(block>>1));
1206 : chl 345
1207 : syskin 704 Data->Cur = OldData->Cur + i*8 * ((block&1) + pParam->edged_width*(block>>1));
1208 : syskin 663 Data->qpel_precision = 0;
1209 : chl 345
1210 : syskin 712 get_range(&Data->min_dx, &Data->max_dx, &Data->min_dy, &Data->max_dy, x, y, 8,
1211 :     pParam->width, pParam->height, OldData->iFcode - Data->qpel, 0, Data->rrv);
1212 :    
1213 :     if (Data->rrv) CheckCandidate = CheckCandidate16no4v;
1214 :     else CheckCandidate = CheckCandidate8;
1215 :    
1216 : chl 530 if (MotionFlags & PMV_EXTSEARCH8) {
1217 : Isibaar 580 int32_t temp_sad = *(Data->iMinSAD); // store current MinSAD
1218 :    
1219 : chl 530 MainSearchFunc *MainSearchPtr;
1220 :     if (MotionFlags & PMV_USESQUARES8) MainSearchPtr = SquareSearch;
1221 :     else if (MotionFlags & PMV_ADVANCEDDIAMOND8) MainSearchPtr = AdvDiamondSearch;
1222 :     else MainSearchPtr = DiamondSearch;
1223 : chl 345
1224 : Isibaar 580 (*MainSearchPtr)(Data->currentMV->x, Data->currentMV->y, Data, 255);
1225 : chl 345
1226 : syskin 601 if(*(Data->iMinSAD) < temp_sad) {
1227 : Isibaar 580 Data->currentQMV->x = 2 * Data->currentMV->x; // update our qpel vector
1228 :     Data->currentQMV->y = 2 * Data->currentMV->y;
1229 :     }
1230 :     }
1231 :    
1232 :     if (MotionFlags & PMV_HALFPELREFINE8) {
1233 :     int32_t temp_sad = *(Data->iMinSAD); // store current MinSAD
1234 :    
1235 : syskin 663 SubpelRefine(Data); // perform halfpel refine of current best vector
1236 : Isibaar 580
1237 :     if(*(Data->iMinSAD) < temp_sad) { // we have found a better match
1238 :     Data->currentQMV->x = 2 * Data->currentMV->x; // update our qpel vector
1239 :     Data->currentQMV->y = 2 * Data->currentMV->y;
1240 :     }
1241 :     }
1242 :    
1243 : syskin 712 if(!Data->rrv && Data->qpel) {
1244 : syskin 601 if((!(Data->currentQMV->x & 1)) && (!(Data->currentQMV->y & 1)) &&
1245 :     (MotionFlags & PMV_QUARTERPELREFINE8)) {
1246 : syskin 663 Data->qpel_precision = 1;
1247 : syskin 712 get_range(&Data->min_dx, &Data->max_dx, &Data->min_dy, &Data->max_dy, x, y, 8,
1248 :     pParam->width, pParam->height, OldData->iFcode, 1, 0);
1249 : syskin 663 SubpelRefine(Data);
1250 : syskin 601 }
1251 : Isibaar 580 }
1252 : chl 345 }
1253 : chl 530
1254 : syskin 704 if (Data->rrv) {
1255 :     Data->currentMV->x = RRV_MV_SCALEDOWN(Data->currentMV->x);
1256 :     Data->currentMV->y = RRV_MV_SCALEDOWN(Data->currentMV->y);
1257 :     }
1258 :    
1259 : syskin 712 if(Data->qpel) {
1260 : syskin 663 pMB->pmvs[block].x = Data->currentQMV->x - Data->predMV.x;
1261 :     pMB->pmvs[block].y = Data->currentQMV->y - Data->predMV.y;
1262 :     pMB->qmvs[block] = *(Data->currentQMV);
1263 : syskin 704 } else {
1264 : Isibaar 580 pMB->pmvs[block].x = Data->currentMV->x - Data->predMV.x;
1265 :     pMB->pmvs[block].y = Data->currentMV->y - Data->predMV.y;
1266 :     }
1267 :    
1268 : Isibaar 539 pMB->mvs[block] = *(Data->currentMV);
1269 : syskin 601 pMB->sad8[block] = 4 * (*Data->iMinSAD);
1270 : chl 345 }
1271 :    
1272 : chl 530 /* B-frames code starts here */
1273 : chl 345
1274 : chl 530 static __inline VECTOR
1275 :     ChoosePred(const MACROBLOCK * const pMB, const uint32_t mode)
1276 : Isibaar 3 {
1277 : chl 530 /* the stupidiest function ever */
1278 :     if (mode == MODE_FORWARD) return pMB->mvs[0];
1279 :     else return pMB->b_mvs[0];
1280 : Isibaar 3 }
1281 :    
1282 : chl 530 static void __inline
1283 :     PreparePredictionsBF(VECTOR * const pmv, const int x, const int y,
1284 :     const uint32_t iWcount,
1285 :     const MACROBLOCK * const pMB,
1286 :     const uint32_t mode_curr)
1287 : Isibaar 3 {
1288 :    
1289 : chl 530 // [0] is prediction
1290 :     pmv[0].x = EVEN(pmv[0].x); pmv[0].y = EVEN(pmv[0].y);
1291 : Isibaar 3
1292 : chl 530 pmv[1].x = pmv[1].y = 0; // [1] is zero
1293 : Isibaar 3
1294 : chl 530 pmv[2] = ChoosePred(pMB, mode_curr);
1295 :     pmv[2].x = EVEN(pmv[2].x); pmv[2].y = EVEN(pmv[2].y);
1296 : edgomez 195
1297 : chl 530 if ((y != 0)&&(x != (int)(iWcount+1))) { // [3] top-right neighbour
1298 :     pmv[3] = ChoosePred(pMB+1-iWcount, mode_curr);
1299 : Isibaar 539 pmv[3].x = EVEN(pmv[3].x); pmv[3].y = EVEN(pmv[3].y);
1300 :     } else pmv[3].x = pmv[3].y = 0;
1301 : Isibaar 3
1302 : chl 530 if (y != 0) {
1303 :     pmv[4] = ChoosePred(pMB-iWcount, mode_curr);
1304 :     pmv[4].x = EVEN(pmv[4].x); pmv[4].y = EVEN(pmv[4].y);
1305 :     } else pmv[4].x = pmv[4].y = 0;
1306 : Isibaar 3
1307 : chl 530 if (x != 0) {
1308 :     pmv[5] = ChoosePred(pMB-1, mode_curr);
1309 :     pmv[5].x = EVEN(pmv[5].x); pmv[5].y = EVEN(pmv[5].y);
1310 :     } else pmv[5].x = pmv[5].y = 0;
1311 : Isibaar 3
1312 : chl 530 if ((x != 0)&&(y != 0)) {
1313 :     pmv[6] = ChoosePred(pMB-1-iWcount, mode_curr);
1314 :     pmv[6].x = EVEN(pmv[5].x); pmv[5].y = EVEN(pmv[5].y);
1315 :     } else pmv[6].x = pmv[6].y = 0;
1316 : edgomez 195
1317 : chl 530 // more?
1318 :     }
1319 : chl 181
1320 : edgomez 170
1321 : chl 530 /* search backward or forward, for b-frames */
1322 :     static void
1323 :     SearchBF( const uint8_t * const pRef,
1324 :     const uint8_t * const pRefH,
1325 :     const uint8_t * const pRefV,
1326 :     const uint8_t * const pRefHV,
1327 :     const IMAGE * const pCur,
1328 :     const int x, const int y,
1329 :     const uint32_t MotionFlags,
1330 :     const uint32_t iFcode,
1331 :     const MBParam * const pParam,
1332 :     MACROBLOCK * const pMB,
1333 :     const VECTOR * const predMV,
1334 :     int32_t * const best_sad,
1335 : h 545 const int32_t mode_current,
1336 :     SearchData * const Data)
1337 : chl 530 {
1338 : Isibaar 3
1339 : chl 530 const int32_t iEdgedWidth = pParam->edged_width;
1340 :    
1341 : syskin 740 int i, iDirection = 255, mask;
1342 : h 545 VECTOR pmv[7];
1343 : chl 530 MainSearchFunc *MainSearchPtr;
1344 : h 545 *Data->iMinSAD = MV_MAX_ERROR;
1345 :     Data->iFcode = iFcode;
1346 : syskin 663 Data->qpel_precision = 0;
1347 : Isibaar 3
1348 : h 545 Data->Ref = pRef + (x + y * iEdgedWidth) * 16;
1349 :     Data->RefH = pRefH + (x + y * iEdgedWidth) * 16;
1350 :     Data->RefV = pRefV + (x + y * iEdgedWidth) * 16;
1351 :     Data->RefHV = pRefHV + (x + y * iEdgedWidth) * 16;
1352 : Isibaar 3
1353 : h 545 Data->predMV = *predMV;
1354 : edgomez 195
1355 : h 545 get_range(&Data->min_dx, &Data->max_dx, &Data->min_dy, &Data->max_dy, x, y, 16,
1356 : syskin 712 pParam->width, pParam->height, iFcode - Data->qpel, 0, 0);
1357 : Isibaar 3
1358 : h 545 pmv[0] = Data->predMV;
1359 : syskin 658 if (Data->qpel) { pmv[0].x /= 2; pmv[0].y /= 2; }
1360 : h 545 PreparePredictionsBF(pmv, x, y, pParam->mb_width, pMB, mode_current);
1361 : edgomez 195
1362 : h 545 Data->currentMV->x = Data->currentMV->y = 0;
1363 : chl 530 CheckCandidate = CheckCandidate16no4v;
1364 : chl 181
1365 : chl 530 // main loop. checking all predictions
1366 : syskin 740 for (i = 0; i < 7; i++) {
1367 : chl 530 if (!(mask = make_mask(pmv, i)) ) continue;
1368 : h 545 CheckCandidate16no4v(pmv[i].x, pmv[i].y, mask, &iDirection, Data);
1369 : edgomez 78 }
1370 : Isibaar 3
1371 : chl 530 if (MotionFlags & PMV_USESQUARES16)
1372 :     MainSearchPtr = SquareSearch;
1373 :     else if (MotionFlags & PMV_ADVANCEDDIAMOND16)
1374 :     MainSearchPtr = AdvDiamondSearch;
1375 :     else MainSearchPtr = DiamondSearch;
1376 : chl 96
1377 : syskin 740 (*MainSearchPtr)(Data->currentMV->x, Data->currentMV->y, Data, iDirection);
1378 : chl 169
1379 : syskin 663 SubpelRefine(Data);
1380 : syskin 658
1381 : syskin 740 if (Data->qpel && *Data->iMinSAD < *best_sad + 300) {
1382 : syskin 658 Data->currentQMV->x = 2*Data->currentMV->x;
1383 :     Data->currentQMV->y = 2*Data->currentMV->y;
1384 : syskin 663 Data->qpel_precision = 1;
1385 : syskin 712 get_range(&Data->min_dx, &Data->max_dx, &Data->min_dy, &Data->max_dy, x, y, 16,
1386 :     pParam->width, pParam->height, iFcode, 1, 0);
1387 : syskin 663 SubpelRefine(Data);
1388 : syskin 658 }
1389 : chl 169
1390 : chl 530 // three bits are needed to code backward mode. four for forward
1391 : syskin 740
1392 : syskin 628 if (mode_current == MODE_FORWARD) *Data->iMinSAD += 4 * Data->lambda16;
1393 :     else *Data->iMinSAD += 3 * Data->lambda16;
1394 : chl 169
1395 : h 545 if (*Data->iMinSAD < *best_sad) {
1396 :     *best_sad = *Data->iMinSAD;
1397 : chl 530 pMB->mode = mode_current;
1398 : syskin 658 if (Data->qpel) {
1399 :     pMB->pmvs[0].x = Data->currentQMV->x - predMV->x;
1400 :     pMB->pmvs[0].y = Data->currentQMV->y - predMV->y;
1401 :     if (mode_current == MODE_FORWARD)
1402 :     pMB->qmvs[0] = *Data->currentQMV;
1403 :     else
1404 :     pMB->b_qmvs[0] = *Data->currentQMV;
1405 :     } else {
1406 :     pMB->pmvs[0].x = Data->currentMV->x - predMV->x;
1407 :     pMB->pmvs[0].y = Data->currentMV->y - predMV->y;
1408 :     }
1409 : syskin 739 if (mode_current == MODE_FORWARD) pMB->mvs[0] = *Data->currentMV;
1410 :     else pMB->b_mvs[0] = *Data->currentMV;
1411 :     }
1412 :     if (mode_current == MODE_FORWARD) *(Data->currentMV+2) = *Data->currentMV;
1413 :     else *(Data->currentMV+1) = *Data->currentMV; //we store currmv for interpolate search
1414 : syskin 658
1415 : chl 530 }
1416 : chl 169
1417 : syskin 712 static void
1418 :     SkipDecisionB(const IMAGE * const pCur,
1419 :     const IMAGE * const f_Ref,
1420 :     const IMAGE * const b_Ref,
1421 :     MACROBLOCK * const pMB,
1422 :     const uint32_t quant,
1423 :     const uint32_t x, const uint32_t y,
1424 :     const SearchData * const Data)
1425 :     {
1426 :     int dx, dy, b_dx, b_dy;
1427 :     uint32_t sum;
1428 :     //this is not full chroma compensation, only it's fullpel approximation. should work though
1429 :     if (Data->qpel) {
1430 :     dy = Data->directmvF[0].y/2 + Data->directmvF[1].y/2 +
1431 :     Data->directmvF[2].y/2 + Data->directmvF[3].y/2;
1432 :    
1433 :     dx = Data->directmvF[0].x/2 + Data->directmvF[1].x/2 +
1434 :     Data->directmvF[2].x/2 + Data->directmvF[3].x/2;
1435 :    
1436 :     b_dy = Data->directmvB[0].y/2 + Data->directmvB[1].y/2 +
1437 :     Data->directmvB[2].y/2 + Data->directmvB[3].y/2;
1438 :    
1439 :     b_dx = Data->directmvB[0].x/2 + Data->directmvB[1].x/2 +
1440 :     Data->directmvB[2].x/2 + Data->directmvB[3].x/2;
1441 :    
1442 :     } else {
1443 :     dy = Data->directmvF[0].y + Data->directmvF[1].y +
1444 :     Data->directmvF[2].y + Data->directmvF[3].y;
1445 :    
1446 :     dx = Data->directmvF[0].x + Data->directmvF[1].x +
1447 :     Data->directmvF[2].x + Data->directmvF[3].x;
1448 :    
1449 :     b_dy = Data->directmvB[0].y + Data->directmvB[1].y +
1450 :     Data->directmvB[2].y + Data->directmvB[3].y;
1451 :    
1452 :     b_dx = Data->directmvB[0].x + Data->directmvB[1].x +
1453 :     Data->directmvB[2].x + Data->directmvB[3].x;
1454 :     }
1455 :    
1456 :    
1457 :     dy = (dy >> 3) + roundtab_76[dy & 0xf];
1458 :     dx = (dx >> 3) + roundtab_76[dx & 0xf];
1459 :     b_dy = (b_dy >> 3) + roundtab_76[b_dy & 0xf];
1460 :     b_dx = (b_dx >> 3) + roundtab_76[b_dx & 0xf];
1461 :    
1462 :     sum = sad8bi(pCur->u + 8*x + 8*y*(Data->iEdgedWidth/2),
1463 :     f_Ref->u + (y*8 + dy/2) * (Data->iEdgedWidth/2) + x*8 + dx/2,
1464 :     b_Ref->u + (y*8 + b_dy/2) * (Data->iEdgedWidth/2) + x*8 + b_dx/2,
1465 :     Data->iEdgedWidth/2);
1466 :     sum += sad8bi(pCur->v + 8*x + 8*y*(Data->iEdgedWidth/2),
1467 :     f_Ref->v + (y*8 + dy/2) * (Data->iEdgedWidth/2) + x*8 + dx/2,
1468 :     b_Ref->v + (y*8 + b_dy/2) * (Data->iEdgedWidth/2) + x*8 + b_dx/2,
1469 :     Data->iEdgedWidth/2);
1470 :    
1471 :     if (sum < 2*MAX_CHROMA_SAD_FOR_SKIP * quant) pMB->mode = MODE_DIRECT_NONE_MV; //skipped
1472 :     }
1473 :    
1474 :    
1475 :    
1476 :     static __inline uint32_t
1477 : Isibaar 539 SearchDirect(const IMAGE * const f_Ref,
1478 : chl 530 const uint8_t * const f_RefH,
1479 :     const uint8_t * const f_RefV,
1480 :     const uint8_t * const f_RefHV,
1481 : Isibaar 539 const IMAGE * const b_Ref,
1482 : chl 530 const uint8_t * const b_RefH,
1483 :     const uint8_t * const b_RefV,
1484 :     const uint8_t * const b_RefHV,
1485 :     const IMAGE * const pCur,
1486 :     const int x, const int y,
1487 :     const uint32_t MotionFlags,
1488 :     const int32_t TRB, const int32_t TRD,
1489 :     const MBParam * const pParam,
1490 :     MACROBLOCK * const pMB,
1491 :     const MACROBLOCK * const b_mb,
1492 : h 545 int32_t * const best_sad,
1493 :     SearchData * const Data)
1494 : edgomez 195
1495 : chl 530 {
1496 : h 545 int32_t skip_sad;
1497 : chl 530 int k;
1498 : h 545
1499 : chl 530 MainSearchFunc *MainSearchPtr;
1500 : Isibaar 3
1501 : h 545 *Data->iMinSAD = 256*4096;
1502 : chl 140
1503 : h 545 Data->Ref = f_Ref->y + (x + Data->iEdgedWidth*y) * 16;
1504 :     Data->RefH = f_RefH + (x + Data->iEdgedWidth*y) * 16;
1505 :     Data->RefV = f_RefV + (x + Data->iEdgedWidth*y) * 16;
1506 :     Data->RefHV = f_RefHV + (x + Data->iEdgedWidth*y) * 16;
1507 :     Data->bRef = b_Ref->y + (x + Data->iEdgedWidth*y) * 16;
1508 :     Data->bRefH = b_RefH + (x + Data->iEdgedWidth*y) * 16;
1509 :     Data->bRefV = b_RefV + (x + Data->iEdgedWidth*y) * 16;
1510 :     Data->bRefHV = b_RefHV + (x + Data->iEdgedWidth*y) * 16;
1511 : chl 140
1512 : h 545 Data->max_dx = 2 * pParam->width - 2 * (x) * 16;
1513 :     Data->max_dy = 2 * pParam->height - 2 * (y) * 16;
1514 :     Data->min_dx = -(2 * 16 + 2 * (x) * 16);
1515 :     Data->min_dy = -(2 * 16 + 2 * (y) * 16);
1516 : syskin 658 if (Data->qpel) { //we measure in qpixels
1517 :     Data->max_dx *= 2;
1518 :     Data->max_dy *= 2;
1519 :     Data->min_dx *= 2;
1520 :     Data->min_dy *= 2;
1521 :     Data->referencemv = b_mb->qmvs;
1522 :     } else Data->referencemv = b_mb->mvs;
1523 : syskin 672 Data->qpel_precision = 0; // it's a trick. it's 1 not 0, but we need 0 here
1524 : Isibaar 3
1525 : chl 530 for (k = 0; k < 4; k++) {
1526 : h 545 pMB->mvs[k].x = Data->directmvF[k].x = ((TRB * Data->referencemv[k].x) / TRD);
1527 :     pMB->b_mvs[k].x = Data->directmvB[k].x = ((TRB - TRD) * Data->referencemv[k].x) / TRD;
1528 :     pMB->mvs[k].y = Data->directmvF[k].y = ((TRB * Data->referencemv[k].y) / TRD);
1529 :     pMB->b_mvs[k].y = Data->directmvB[k].y = ((TRB - TRD) * Data->referencemv[k].y) / TRD;
1530 : Isibaar 3
1531 : h 545 if ( ( pMB->b_mvs[k].x > Data->max_dx ) || ( pMB->b_mvs[k].x < Data->min_dx )
1532 :     || ( pMB->b_mvs[k].y > Data->max_dy ) || ( pMB->b_mvs[k].y < Data->min_dy )) {
1533 : Isibaar 3
1534 : Isibaar 539 *best_sad = 256*4096; // in that case, we won't use direct mode
1535 :     pMB->mode = MODE_DIRECT; // just to make sure it doesn't say "MODE_DIRECT_NONE_MV"
1536 :     pMB->b_mvs[0].x = pMB->b_mvs[0].y = 0;
1537 : syskin 712 return 256*4096;
1538 : Isibaar 539 }
1539 :     if (b_mb->mode != MODE_INTER4V) {
1540 :     pMB->mvs[1] = pMB->mvs[2] = pMB->mvs[3] = pMB->mvs[0];
1541 :     pMB->b_mvs[1] = pMB->b_mvs[2] = pMB->b_mvs[3] = pMB->b_mvs[0];
1542 : h 545 Data->directmvF[1] = Data->directmvF[2] = Data->directmvF[3] = Data->directmvF[0];
1543 :     Data->directmvB[1] = Data->directmvB[2] = Data->directmvB[3] = Data->directmvB[0];
1544 : Isibaar 539 break;
1545 :     }
1546 :     }
1547 : Isibaar 3
1548 : syskin 663 if (b_mb->mode == MODE_INTER4V) CheckCandidate = CheckCandidateDirect;
1549 :     else CheckCandidate = CheckCandidateDirectno4v;
1550 : syskin 658
1551 : h 545 (*CheckCandidate)(0, 0, 255, &k, Data);
1552 : Isibaar 3
1553 : syskin 712 // initial (fast) skip decision
1554 :     if (*Data->iMinSAD < pMB->quant * INITIAL_SKIP_THRESH*2) {
1555 :     SkipDecisionB(pCur, f_Ref, b_Ref, pMB, x, y, Data->chroma, Data); //possible skip - checking chroma
1556 :     if (pMB->mode == MODE_DIRECT_NONE_MV) return *Data->iMinSAD; // skip.
1557 : Isibaar 539 }
1558 :    
1559 : h 545 skip_sad = *Data->iMinSAD;
1560 : edgomez 195
1561 : chl 530 // DIRECT MODE DELTA VECTOR SEARCH.
1562 :     // This has to be made more effective, but at the moment I'm happy it's running at all
1563 : Isibaar 3
1564 : chl 530 if (MotionFlags & PMV_USESQUARES16) MainSearchPtr = SquareSearch;
1565 :     else if (MotionFlags & PMV_ADVANCEDDIAMOND16) MainSearchPtr = AdvDiamondSearch;
1566 :     else MainSearchPtr = DiamondSearch;
1567 : edgomez 195
1568 : h 545 (*MainSearchPtr)(0, 0, Data, 255);
1569 : Isibaar 3
1570 : syskin 663 SubpelRefine(Data);
1571 : Isibaar 3
1572 : h 545 *best_sad = *Data->iMinSAD;
1573 : Isibaar 3
1574 : syskin 743 if (b_mb->mode == MODE_INTER4V || Data->qpel) pMB->mode = MODE_DIRECT;
1575 : syskin 672 else pMB->mode = MODE_DIRECT_NO4V; //for faster compensation
1576 : edgomez 195
1577 : h 545 pMB->pmvs[3] = *Data->currentMV;
1578 : edgomez 195
1579 : chl 530 for (k = 0; k < 4; k++) {
1580 : h 545 pMB->mvs[k].x = Data->directmvF[k].x + Data->currentMV->x;
1581 : syskin 658 pMB->b_mvs[k].x = ( (Data->currentMV->x == 0)
1582 : h 545 ? Data->directmvB[k].x
1583 : syskin 658 :pMB->mvs[k].x - Data->referencemv[k].x);
1584 : h 545 pMB->mvs[k].y = (Data->directmvF[k].y + Data->currentMV->y);
1585 :     pMB->b_mvs[k].y = ((Data->currentMV->y == 0)
1586 :     ? Data->directmvB[k].y
1587 :     : pMB->mvs[k].y - Data->referencemv[k].y);
1588 : syskin 658 if (Data->qpel) {
1589 :     pMB->qmvs[k].x = pMB->mvs[k].x; pMB->mvs[k].x /= 2;
1590 :     pMB->b_qmvs[k].x = pMB->b_mvs[k].x; pMB->b_mvs[k].x /= 2;
1591 :     pMB->qmvs[k].y = pMB->mvs[k].y; pMB->mvs[k].y /= 2;
1592 :     pMB->b_qmvs[k].y = pMB->b_mvs[k].y; pMB->b_mvs[k].y /= 2;
1593 :     }
1594 :    
1595 : chl 530 if (b_mb->mode != MODE_INTER4V) {
1596 :     pMB->mvs[3] = pMB->mvs[2] = pMB->mvs[1] = pMB->mvs[0];
1597 :     pMB->b_mvs[3] = pMB->b_mvs[2] = pMB->b_mvs[1] = pMB->b_mvs[0];
1598 : syskin 658 pMB->qmvs[3] = pMB->qmvs[2] = pMB->qmvs[1] = pMB->qmvs[0];
1599 :     pMB->b_qmvs[3] = pMB->b_qmvs[2] = pMB->b_qmvs[1] = pMB->b_qmvs[0];
1600 : chl 530 break;
1601 :     }
1602 :     }
1603 : h 545 return skip_sad;
1604 : Isibaar 3 }
1605 : chl 96
1606 : h 545
1607 : syskin 712 static void
1608 : chl 530 SearchInterpolate(const uint8_t * const f_Ref,
1609 :     const uint8_t * const f_RefH,
1610 :     const uint8_t * const f_RefV,
1611 :     const uint8_t * const f_RefHV,
1612 :     const uint8_t * const b_Ref,
1613 :     const uint8_t * const b_RefH,
1614 :     const uint8_t * const b_RefV,
1615 :     const uint8_t * const b_RefHV,
1616 :     const IMAGE * const pCur,
1617 :     const int x, const int y,
1618 :     const uint32_t fcode,
1619 :     const uint32_t bcode,
1620 :     const uint32_t MotionFlags,
1621 :     const MBParam * const pParam,
1622 :     const VECTOR * const f_predMV,
1623 :     const VECTOR * const b_predMV,
1624 :     MACROBLOCK * const pMB,
1625 : h 545 int32_t * const best_sad,
1626 :     SearchData * const fData)
1627 : chl 530
1628 : chl 96 {
1629 :    
1630 : chl 530 int iDirection, i, j;
1631 : h 545 SearchData bData;
1632 : chl 96
1633 : syskin 712 fData->qpel_precision = 0;
1634 :     memcpy(&bData, fData, sizeof(SearchData)); //quick copy of common data
1635 :     *fData->iMinSAD = 4096*256;
1636 : syskin 739 bData.currentMV++; bData.currentQMV++;
1637 : h 545 fData->iFcode = bData.bFcode = fcode; fData->bFcode = bData.iFcode = bcode;
1638 : edgomez 195
1639 : syskin 712 i = (x + y * fData->iEdgedWidth) * 16;
1640 :     bData.bRef = fData->Ref = f_Ref + i;
1641 :     bData.bRefH = fData->RefH = f_RefH + i;
1642 :     bData.bRefV = fData->RefV = f_RefV + i;
1643 :     bData.bRefHV = fData->RefHV = f_RefHV + i;
1644 :     bData.Ref = fData->bRef = b_Ref + i;
1645 :     bData.RefH = fData->bRefH = b_RefH + i;
1646 :     bData.RefV = fData->bRefV = b_RefV + i;
1647 :     bData.RefHV = fData->bRefHV = b_RefHV + i;
1648 : chl 96
1649 : h 545 bData.bpredMV = fData->predMV = *f_predMV;
1650 :     fData->bpredMV = bData.predMV = *b_predMV;
1651 : syskin 661 fData->currentMV[0] = fData->currentMV[2];
1652 : chl 96
1653 : syskin 712 get_range(&fData->min_dx, &fData->max_dx, &fData->min_dy, &fData->max_dy, x, y, 16, pParam->width, pParam->height, fcode - fData->qpel, 0, 0);
1654 :     get_range(&bData.min_dx, &bData.max_dx, &bData.min_dy, &bData.max_dy, x, y, 16, pParam->width, pParam->height, bcode - fData->qpel, 0, 0);
1655 :    
1656 : h 545 if (fData->currentMV[0].x > fData->max_dx) fData->currentMV[0].x = fData->max_dx;
1657 : syskin 675 if (fData->currentMV[0].x < fData->min_dx) fData->currentMV[0].x = fData->min_dx;
1658 :     if (fData->currentMV[0].y > fData->max_dy) fData->currentMV[0].y = fData->max_dy;
1659 :     if (fData->currentMV[0].y < fData->min_dy) fData->currentMV[0].y = fData->min_dy;
1660 : Isibaar 539
1661 : h 545 if (fData->currentMV[1].x > bData.max_dx) fData->currentMV[1].x = bData.max_dx;
1662 : syskin 675 if (fData->currentMV[1].x < bData.min_dx) fData->currentMV[1].x = bData.min_dx;
1663 :     if (fData->currentMV[1].y > bData.max_dy) fData->currentMV[1].y = bData.max_dy;
1664 :     if (fData->currentMV[1].y < bData.min_dy) fData->currentMV[1].y = bData.min_dy;
1665 : Isibaar 539
1666 : h 545 CheckCandidateInt(fData->currentMV[0].x, fData->currentMV[0].y, 255, &iDirection, fData);
1667 : chl 96
1668 : chl 530 //diamond. I wish we could use normal mainsearch functions (square, advdiamond)
1669 : chl 96
1670 : chl 530 do {
1671 :     iDirection = 255;
1672 :     // forward MV moves
1673 : h 545 i = fData->currentMV[0].x; j = fData->currentMV[0].y;
1674 : chl 96
1675 : h 545 CheckCandidateInt(i + 1, j, 0, &iDirection, fData);
1676 :     CheckCandidateInt(i, j + 1, 0, &iDirection, fData);
1677 :     CheckCandidateInt(i - 1, j, 0, &iDirection, fData);
1678 :     CheckCandidateInt(i, j - 1, 0, &iDirection, fData);
1679 : chl 96
1680 : chl 530 // backward MV moves
1681 : h 545 i = fData->currentMV[1].x; j = fData->currentMV[1].y;
1682 :     fData->currentMV[2] = fData->currentMV[0];
1683 : Isibaar 539 CheckCandidateInt(i + 1, j, 0, &iDirection, &bData);
1684 :     CheckCandidateInt(i, j + 1, 0, &iDirection, &bData);
1685 :     CheckCandidateInt(i - 1, j, 0, &iDirection, &bData);
1686 :     CheckCandidateInt(i, j - 1, 0, &iDirection, &bData);
1687 : chl 96
1688 : chl 530 } while (!(iDirection));
1689 : edgomez 195
1690 : syskin 658 if (fData->qpel) {
1691 : syskin 740 if (*fData->iMinSAD > *best_sad + 500) return;
1692 : syskin 675 CheckCandidate = CheckCandidateInt;
1693 : syskin 663 fData->qpel_precision = bData.qpel_precision = 1;
1694 : syskin 712 get_range(&fData->min_dx, &fData->max_dx, &fData->min_dy, &fData->max_dy, x, y, 16, pParam->width, pParam->height, fcode, 1, 0);
1695 :     get_range(&bData.min_dx, &bData.max_dx, &bData.min_dy, &bData.max_dy, x, y, 16, pParam->width, pParam->height, bcode, 1, 0);
1696 : syskin 658 fData->currentQMV[2].x = fData->currentQMV[0].x = 2 * fData->currentMV[0].x;
1697 :     fData->currentQMV[2].y = fData->currentQMV[0].y = 2 * fData->currentMV[0].y;
1698 :     fData->currentQMV[1].x = 2 * fData->currentMV[1].x;
1699 :     fData->currentQMV[1].y = 2 * fData->currentMV[1].y;
1700 : syskin 663 SubpelRefine(fData);
1701 : syskin 740 if (*fData->iMinSAD > *best_sad + 300) return;
1702 : syskin 658 fData->currentQMV[2] = fData->currentQMV[0];
1703 : syskin 663 SubpelRefine(&bData);
1704 : syskin 658 }
1705 : syskin 676
1706 : syskin 740 *fData->iMinSAD += (2+3) * fData->lambda16; // two bits are needed to code interpolate mode.
1707 : syskin 658
1708 : h 545 if (*fData->iMinSAD < *best_sad) {
1709 :     *best_sad = *fData->iMinSAD;
1710 :     pMB->mvs[0] = fData->currentMV[0];
1711 :     pMB->b_mvs[0] = fData->currentMV[1];
1712 : chl 530 pMB->mode = MODE_INTERPOLATE;
1713 : syskin 658 if (fData->qpel) {
1714 :     pMB->qmvs[0] = fData->currentQMV[0];
1715 :     pMB->b_qmvs[0] = fData->currentQMV[1];
1716 :     pMB->pmvs[1].x = pMB->qmvs[0].x - f_predMV->x;
1717 :     pMB->pmvs[1].y = pMB->qmvs[0].y - f_predMV->y;
1718 :     pMB->pmvs[0].x = pMB->b_qmvs[0].x - b_predMV->x;
1719 :     pMB->pmvs[0].y = pMB->b_qmvs[0].y - b_predMV->y;
1720 :     } else {
1721 :     pMB->pmvs[1].x = pMB->mvs[0].x - f_predMV->x;
1722 :     pMB->pmvs[1].y = pMB->mvs[0].y - f_predMV->y;
1723 :     pMB->pmvs[0].x = pMB->b_mvs[0].x - b_predMV->x;
1724 :     pMB->pmvs[0].y = pMB->b_mvs[0].y - b_predMV->y;
1725 :     }
1726 : chl 530 }
1727 :     }
1728 : chl 96
1729 : chl 530 void
1730 :     MotionEstimationBVOP(MBParam * const pParam,
1731 :     FRAMEINFO * const frame,
1732 :     const int32_t time_bp,
1733 :     const int32_t time_pp,
1734 :     // forward (past) reference
1735 :     const MACROBLOCK * const f_mbs,
1736 :     const IMAGE * const f_ref,
1737 :     const IMAGE * const f_refH,
1738 :     const IMAGE * const f_refV,
1739 :     const IMAGE * const f_refHV,
1740 :     // backward (future) reference
1741 : syskin 644 const FRAMEINFO * const b_reference,
1742 : chl 530 const IMAGE * const b_ref,
1743 :     const IMAGE * const b_refH,
1744 :     const IMAGE * const b_refV,
1745 :     const IMAGE * const b_refHV)
1746 :     {
1747 :     uint32_t i, j;
1748 : syskin 712 int32_t best_sad;
1749 :     uint32_t skip_sad;
1750 : chl 530 int f_count = 0, b_count = 0, i_count = 0, d_count = 0, n_count = 0;
1751 :     static const VECTOR zeroMV={0,0};
1752 : syskin 644 const MACROBLOCK * const b_mbs = b_reference->mbs;
1753 : chl 96
1754 : chl 530 VECTOR f_predMV, b_predMV; /* there is no prediction for direct mode*/
1755 : chl 96
1756 : chl 530 const int32_t TRB = time_pp - time_bp;
1757 :     const int32_t TRD = time_pp;
1758 : syskin 658 uint8_t * qimage;
1759 : chl 96
1760 : h 545 // some pre-inintialized data for the rest of the search
1761 :    
1762 :     SearchData Data;
1763 :     int32_t iMinSAD;
1764 :     VECTOR currentMV[3];
1765 : syskin 658 VECTOR currentQMV[3];
1766 : syskin 704 memset(&Data, 0, sizeof(SearchData));
1767 : h 545 Data.iEdgedWidth = pParam->edged_width;
1768 : syskin 658 Data.currentMV = currentMV; Data.currentQMV = currentQMV;
1769 : h 545 Data.iMinSAD = &iMinSAD;
1770 : syskin 712 Data.lambda16 = lambda_vec16[frame->quant];
1771 :     Data.chroma = frame->quant;
1772 : syskin 658 Data.qpel = pParam->m_quarterpel;
1773 : syskin 663 Data.rounding = 0;
1774 : h 545
1775 : syskin 658 if((qimage = (uint8_t *) malloc(32 * pParam->edged_width)) == NULL)
1776 :     return; // allocate some mem for qpel interpolated blocks
1777 :     // somehow this is dirty since I think we shouldn't use malloc outside
1778 :     // encoder_create() - so please fix me!
1779 :     Data.RefQ = qimage;
1780 :    
1781 : chl 530 // note: i==horizontal, j==vertical
1782 :     for (j = 0; j < pParam->mb_height; j++) {
1783 : chl 96
1784 : chl 530 f_predMV = b_predMV = zeroMV; /* prediction is reset at left boundary */
1785 : edgomez 195
1786 : chl 530 for (i = 0; i < pParam->mb_width; i++) {
1787 :     MACROBLOCK * const pMB = frame->mbs + i + j * pParam->mb_width;
1788 :     const MACROBLOCK * const b_mb = b_mbs + i + j * pParam->mb_width;
1789 : edgomez 195
1790 : chl 619 /* special case, if collocated block is SKIPed in P-VOP: encoding is forward (0,0), cpb=0 without further ado */
1791 : syskin 644 if (b_reference->coding_type != S_VOP)
1792 :     if (b_mb->mode == MODE_NOT_CODED) {
1793 :     pMB->mode = MODE_NOT_CODED;
1794 :     continue;
1795 :     }
1796 : chl 96
1797 : h 545 Data.Cur = frame->image.y + (j * Data.iEdgedWidth + i) * 16;
1798 : syskin 601 pMB->quant = frame->quant;
1799 : syskin 628
1800 : chl 530 /* direct search comes first, because it (1) checks for SKIP-mode
1801 :     and (2) sets very good predictions for forward and backward search */
1802 : Isibaar 539 skip_sad = SearchDirect(f_ref, f_refH->y, f_refV->y, f_refHV->y,
1803 :     b_ref, b_refH->y, b_refV->y, b_refHV->y,
1804 : chl 530 &frame->image,
1805 :     i, j,
1806 :     frame->motion_flags,
1807 :     TRB, TRD,
1808 :     pParam,
1809 :     pMB, b_mb,
1810 : h 545 &best_sad,
1811 :     &Data);
1812 : chl 96
1813 : Isibaar 539 if (pMB->mode == MODE_DIRECT_NONE_MV) { n_count++; continue; }
1814 : syskin 739
1815 : chl 530 // forward search
1816 :     SearchBF(f_ref->y, f_refH->y, f_refV->y, f_refHV->y,
1817 :     &frame->image, i, j,
1818 :     frame->motion_flags,
1819 : h 545 frame->fcode, pParam,
1820 : chl 530 pMB, &f_predMV, &best_sad,
1821 : h 545 MODE_FORWARD, &Data);
1822 : chl 96
1823 : chl 530 // backward search
1824 :     SearchBF(b_ref->y, b_refH->y, b_refV->y, b_refHV->y,
1825 :     &frame->image, i, j,
1826 :     frame->motion_flags,
1827 : h 545 frame->bcode, pParam,
1828 : chl 530 pMB, &b_predMV, &best_sad,
1829 : h 545 MODE_BACKWARD, &Data);
1830 : chl 96
1831 : chl 530 // interpolate search comes last, because it uses data from forward and backward as prediction
1832 :     SearchInterpolate(f_ref->y, f_refH->y, f_refV->y, f_refHV->y,
1833 :     b_ref->y, b_refH->y, b_refV->y, b_refHV->y,
1834 :     &frame->image,
1835 :     i, j,
1836 :     frame->fcode, frame->bcode,
1837 :     frame->motion_flags,
1838 : h 545 pParam,
1839 : chl 530 &f_predMV, &b_predMV,
1840 : h 545 pMB, &best_sad,
1841 :     &Data);
1842 : syskin 662
1843 : syskin 712 // final skip decision
1844 :     if ( (skip_sad < frame->quant * MAX_SAD00_FOR_SKIP*2)
1845 :     && ((100*best_sad)/(skip_sad+1) > FINAL_SKIP_THRESH) )
1846 :     SkipDecisionB(&frame->image, f_ref, b_ref, pMB,frame->quant, i, j, &Data);
1847 :    
1848 : chl 530 switch (pMB->mode) {
1849 :     case MODE_FORWARD:
1850 :     f_count++;
1851 : syskin 712 if (Data.qpel) f_predMV = pMB->qmvs[0];
1852 : syskin 658 else f_predMV = pMB->mvs[0];
1853 : chl 530 break;
1854 :     case MODE_BACKWARD:
1855 :     b_count++;
1856 : syskin 712 if (Data.qpel) b_predMV = pMB->b_qmvs[0];
1857 : syskin 658 else b_predMV = pMB->b_mvs[0];
1858 : chl 530 break;
1859 :     case MODE_INTERPOLATE:
1860 :     i_count++;
1861 : syskin 712 if (Data.qpel) {
1862 : syskin 658 f_predMV = pMB->qmvs[0];
1863 :     b_predMV = pMB->b_qmvs[0];
1864 :     } else {
1865 :     f_predMV = pMB->mvs[0];
1866 :     b_predMV = pMB->b_mvs[0];
1867 :     }
1868 : chl 530 break;
1869 :     case MODE_DIRECT:
1870 :     case MODE_DIRECT_NO4V:
1871 :     d_count++;
1872 :     default:
1873 :     break;
1874 : chl 96 }
1875 :     }
1876 :     }
1877 : syskin 658 free(qimage);
1878 : chl 96 }
1879 :    
1880 : syskin 739 static __inline void
1881 : Isibaar 539 MEanalyzeMB ( const uint8_t * const pRef,
1882 :     const uint8_t * const pCur,
1883 :     const int x,
1884 :     const int y,
1885 :     const MBParam * const pParam,
1886 : syskin 739 MACROBLOCK * const pMBs,
1887 : h 545 SearchData * const Data)
1888 : Isibaar 539 {
1889 : chl 317
1890 : syskin 739 int i, mask;
1891 : h 545 VECTOR pmv[3];
1892 : syskin 739 MACROBLOCK * pMB = &pMBs[x + y * pParam->mb_width];
1893 :    
1894 :     for (i = 0; i < 5; i++) Data->iMinSAD[i] = MV_MAX_ERROR;
1895 : suxen_drol 118
1896 : syskin 640 //median is only used as prediction. it doesn't have to be real
1897 :     if (x == 1 && y == 1) Data->predMV.x = Data->predMV.y = 0;
1898 :     else
1899 :     if (x == 1) //left macroblock does not have any vector now
1900 :     Data->predMV = (pMB - pParam->mb_width)->mvs[0]; // top instead of median
1901 : syskin 739 else if (y == 1) // top macroblock doesn't have it's vector
1902 : syskin 640 Data->predMV = (pMB - 1)->mvs[0]; // left instead of median
1903 :     else Data->predMV = get_pmv2(pMBs, pParam->mb_width, 0, x, y, 0); //else median
1904 :    
1905 : h 545 get_range(&Data->min_dx, &Data->max_dx, &Data->min_dy, &Data->max_dy, x, y, 16,
1906 : syskin 739 pParam->width, pParam->height, Data->iFcode - pParam->m_quarterpel, 0, Data->rrv);
1907 : chl 326
1908 : h 545 Data->Cur = pCur + (x + y * pParam->edged_width) * 16;
1909 :     Data->Ref = pRef + (x + y * pParam->edged_width) * 16;
1910 : syskin 739
1911 : Isibaar 539 pmv[1].x = EVEN(pMB->mvs[0].x);
1912 :     pmv[1].y = EVEN(pMB->mvs[0].y);
1913 : syskin 640 pmv[2].x = EVEN(Data->predMV.x);
1914 :     pmv[2].y = EVEN(Data->predMV.y);
1915 :     pmv[0].x = pmv[0].y = 0;
1916 : chl 326
1917 : syskin 739 CheckCandidate32I(0, 0, 255, &i, Data);
1918 : syskin 640
1919 : syskin 739 if (*Data->iMinSAD > 4 * MAX_SAD00_FOR_SKIP * 4) {
1920 : syskin 640
1921 : syskin 739 if (!(mask = make_mask(pmv, 1)))
1922 :     CheckCandidate32I(pmv[1].x, pmv[1].y, mask, &i, Data);
1923 :     if (!(mask = make_mask(pmv, 2)))
1924 :     CheckCandidate32I(pmv[2].x, pmv[2].y, mask, &i, Data);
1925 : Isibaar 539
1926 : syskin 739 if (*Data->iMinSAD > 4 * MAX_SAD00_FOR_SKIP * 4) // diamond only if needed
1927 :     DiamondSearch(Data->currentMV->x, Data->currentMV->y, Data, i);
1928 : Isibaar 539
1929 : syskin 739 for (i = 0; i < 4; i++) {
1930 :     MACROBLOCK * MB = &pMBs[x + (i&1) + (y+(i>>1) * pParam->mb_width)];
1931 :     MB->mvs[0] = MB->mvs[1] = MB->mvs[2] = MB->mvs[3] = Data->currentMV[i];
1932 :     MB->mode = MODE_INTER;
1933 :     MB->sad16 = Data->iMinSAD[i+1];
1934 :     }
1935 :     }
1936 : Isibaar 539 }
1937 :    
1938 : syskin 739 #define INTRA_BIAS 2500
1939 :     #define INTRA_THRESH 1500
1940 :     #define INTER_THRESH 1400
1941 : Isibaar 539
1942 : syskin 644
1943 : Isibaar 539 int
1944 :     MEanalysis( const IMAGE * const pRef,
1945 : syskin 644 FRAMEINFO * const Current,
1946 : Isibaar 539 MBParam * const pParam,
1947 : syskin 644 int maxIntra, //maximum number if non-I frames
1948 :     int intraCount, //number of non-I frames after last I frame; 0 if we force P/B frame
1949 :     int bCount) // number if B frames in a row
1950 : Isibaar 539 {
1951 :     uint32_t x, y, intra = 0;
1952 :     int sSAD = 0;
1953 : syskin 644 MACROBLOCK * const pMBs = Current->mbs;
1954 :     const IMAGE * const pCurrent = &Current->image;
1955 :     int IntraThresh = INTRA_THRESH, InterThresh = INTER_THRESH;
1956 : syskin 739 const VECTOR zeroMV = {0,0};
1957 : h 545
1958 : syskin 739 int32_t iMinSAD[5], temp[5];
1959 :     VECTOR currentMV[5];
1960 : h 545 SearchData Data;
1961 :     Data.iEdgedWidth = pParam->edged_width;
1962 : syskin 739 Data.currentMV = currentMV;
1963 :     Data.iMinSAD = iMinSAD;
1964 : syskin 644 Data.iFcode = Current->fcode;
1965 : syskin 739 Data.rrv = Current->global_flags & XVID_REDUCED;
1966 :     Data.temp = temp;
1967 :     CheckCandidate = CheckCandidate32I;
1968 : h 545
1969 : syskin 658 if (intraCount < 10) // we're right after an I frame
1970 :     IntraThresh += 4 * (intraCount - 10) * (intraCount - 10);
1971 : syskin 644 else
1972 :     if ( 5*(maxIntra - intraCount) < maxIntra) // we're close to maximum. 2 sec when max is 10 sec
1973 :     IntraThresh -= (IntraThresh * (maxIntra - 5*(maxIntra - intraCount)))/maxIntra;
1974 :    
1975 : syskin 672 InterThresh += 400 * (1 - bCount);
1976 : syskin 739 if (InterThresh < 300) InterThresh = 300;
1977 : syskin 644
1978 : Isibaar 539 if (sadInit) (*sadInit) ();
1979 :    
1980 : syskin 739 for (y = 1; y < pParam->mb_height-1; y+=2) {
1981 :     for (x = 1; x < pParam->mb_width-1; x+=2) {
1982 :     int i;
1983 : Isibaar 539
1984 : syskin 739 if (bCount == 0) pMBs[x + y * pParam->mb_width].mvs[0] = zeroMV;
1985 :    
1986 :     MEanalyzeMB(pRef->y, pCurrent->y, x, y, pParam, pMBs, &Data);
1987 : Isibaar 539
1988 : syskin 739 for (i = 0; i < 4; i++) {
1989 :     int dev;
1990 :     MACROBLOCK *pMB = &pMBs[x+(i&1) + y+(i>>1) * pParam->mb_width];
1991 :     if (pMB->sad16 > IntraThresh) {
1992 :     dev = dev16(pCurrent->y + (x + (i&1) + (y + (i>>1))* pParam->edged_width) * 16,
1993 :     pParam->edged_width);
1994 :     if (dev + IntraThresh < pMB->sad16) {
1995 :     pMB->mode = MODE_INTRA;
1996 :     if (++intra > (pParam->mb_height-2)*(pParam->mb_width-2)/2) return I_VOP;
1997 :     }
1998 : Isibaar 539 }
1999 : syskin 739 sSAD += pMB->sad16;
2000 : syskin 644 }
2001 : suxen_drol 118 }
2002 :     }
2003 : syskin 704 sSAD /= (pParam->mb_height-2)*(pParam->mb_width-2);
2004 : syskin 739 if (sSAD > IntraThresh + INTRA_BIAS ) return I_VOP;
2005 : suxen_drol 709 if (sSAD > InterThresh ) return P_VOP;
2006 : Isibaar 539 emms();
2007 : suxen_drol 709 return B_VOP;
2008 : syskin 712
2009 : suxen_drol 118 }
2010 : syskin 576
2011 : syskin 628 static void
2012 :     CheckGMC(int x, int y, const int dir, int * iDirection,
2013 :     const MACROBLOCK * const pMBs, uint32_t * bestcount, VECTOR * GMC,
2014 :     const MBParam * const pParam)
2015 :     {
2016 :     uint32_t mx, my, a, count = 0;
2017 : chl 619
2018 : syskin 628 for (my = 1; my < pParam->mb_height-1; my++)
2019 :     for (mx = 1; mx < pParam->mb_width-1; mx++) {
2020 :     VECTOR mv;
2021 :     const MACROBLOCK *pMB = &pMBs[mx + my * pParam->mb_width];
2022 :     if (pMB->mode == MODE_INTRA || pMB->mode == MODE_NOT_CODED) continue;
2023 :     mv = pMB->mvs[0];
2024 :     a = ABS(mv.x - x) + ABS(mv.y - y);
2025 :     if (a < 6) count += 6 - a;
2026 :     }
2027 : chl 619
2028 : syskin 628 if (count > *bestcount) {
2029 :     *bestcount = count;
2030 :     *iDirection = dir;
2031 :     GMC->x = x; GMC->y = y;
2032 :     }
2033 :     }
2034 :    
2035 :    
2036 : suxen_drol 721 static VECTOR
2037 : chl 619 GlobalMotionEst(const MACROBLOCK * const pMBs, const MBParam * const pParam, const uint32_t iFcode)
2038 :     {
2039 :    
2040 : syskin 628 uint32_t count, bestcount = 0;
2041 : chl 619 int x, y;
2042 : syskin 628 VECTOR gmc = {0,0};
2043 : chl 619 int step, min_x, max_x, min_y, max_y;
2044 :     uint32_t mx, my;
2045 : syskin 628 int iDirection, bDirection;
2046 : chl 619
2047 :     min_x = min_y = -32<<iFcode;
2048 :     max_x = max_y = 32<<iFcode;
2049 :    
2050 : syskin 628 //step1: let's find a rough camera panning
2051 : chl 619 for (step = 32; step >= 2; step /= 2) {
2052 :     bestcount = 0;
2053 :     for (y = min_y; y <= max_y; y += step)
2054 :     for (x = min_x ; x <= max_x; x += step) {
2055 :     count = 0;
2056 :     //for all macroblocks
2057 :     for (my = 1; my < pParam->mb_height-1; my++)
2058 :     for (mx = 1; mx < pParam->mb_width-1; mx++) {
2059 :     const MACROBLOCK *pMB = &pMBs[mx + my * pParam->mb_width];
2060 :     VECTOR mv;
2061 :    
2062 :     if (pMB->mode == MODE_INTRA || pMB->mode == MODE_NOT_CODED)
2063 :     continue;
2064 :    
2065 :     mv = pMB->mvs[0];
2066 :     if ( ABS(mv.x - x) <= step && ABS(mv.y - y) <= step ) /* GMC translation is always halfpel-res */
2067 :     count++;
2068 :     }
2069 :     if (count >= bestcount) { bestcount = count; gmc.x = x; gmc.y = y; }
2070 :     }
2071 :     min_x = gmc.x - step;
2072 :     max_x = gmc.x + step;
2073 :     min_y = gmc.y - step;
2074 :     max_y = gmc.y + step;
2075 :    
2076 :     }
2077 : syskin 628
2078 :     if (bestcount < (pParam->mb_height-2)*(pParam->mb_width-2)/10)
2079 :     gmc.x = gmc.y = 0; //no camara pan, no GMC
2080 :    
2081 :     // step2: let's refine camera panning using gradiend-descent approach.
2082 :     // TODO: more warping points may be evaluated here (like in interpolate mode search - two vectors in one diamond)
2083 :     bestcount = 0;
2084 :     CheckGMC(gmc.x, gmc.y, 255, &iDirection, pMBs, &bestcount, &gmc, pParam);
2085 :     do {
2086 :     x = gmc.x; y = gmc.y;
2087 :     bDirection = iDirection; iDirection = 0;
2088 :     if (bDirection & 1) CheckGMC(x - 1, y, 1+4+8, &iDirection, pMBs, &bestcount, &gmc, pParam);
2089 :     if (bDirection & 2) CheckGMC(x + 1, y, 2+4+8, &iDirection, pMBs, &bestcount, &gmc, pParam);
2090 :     if (bDirection & 4) CheckGMC(x, y - 1, 1+2+4, &iDirection, pMBs, &bestcount, &gmc, pParam);
2091 :     if (bDirection & 8) CheckGMC(x, y + 1, 1+2+8, &iDirection, pMBs, &bestcount, &gmc, pParam);
2092 :    
2093 :     } while (iDirection);
2094 :    
2095 : chl 619 if (pParam->m_quarterpel) {
2096 :     gmc.x *= 2;
2097 :     gmc.y *= 2; /* we store the halfpel value as pseudo-qpel to make comparison easier */
2098 :     }
2099 :    
2100 :     return gmc;
2101 :     }

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