Annotation of /branches/dev-api-3/xvidcore/src/motion/motion_est.c

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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 :	Isibaar	3
35 :			#include "../encoder.h"
36 :			#include "../utils/mbfunctions.h"
37 :			#include "../prediction/mbprediction.h"
38 :			#include "../global.h"
39 :			#include "../utils/timer.h"
40 :	Isibaar	580	#include "../image/interpolate8x8.h"
41 :	chl	530	#include "motion_est.h"
42 :	suxen_drol	118	#include "motion.h"
43 :	Isibaar	3	#include "sad.h"
44 :	Isibaar	539	#include "../utils/emms.h"
45 :	Isibaar	3
46 :	chl	530	#define INITIAL_SKIP_THRESH (10)
47 :			#define FINAL_SKIP_THRESH (50)
48 :			#define MAX_SAD00_FOR_SKIP (20)
49 :	Isibaar	539	#define MAX_CHROMA_SAD_FOR_SKIP (22)
50 :	Isibaar	3
51 :	chl	530	#define CHECK_CANDIDATE(X,Y,D) { \
52 :			(*CheckCandidate)((const int)(X),(const int)(Y), (D), &iDirection, data ); }
53 :	Isibaar	3
54 :	chl	530	static __inline int
55 :	syskin	712	d_mv_bits(int x, int y, const uint32_t iFcode, const int qpel, const int rrv)
56 :	Isibaar	3	{
57 :	chl	530	int xb, yb;
58 :	syskin	712	if (qpel) { x = 2; y = 2;}
59 :			else if (rrv) { x = RRV_MV_SCALEDOWN(x); y = RRV_MV_SCALEDOWN(y); }
60 :	chl	530
61 :			if (x == 0) xb = 1;
62 :			else {
63 :			if (x < 0) x = -x;
64 :			x += (1 << (iFcode - 1)) - 1;
65 :			x >>= (iFcode - 1);
66 :			if (x > 32) x = 32;
67 :			xb = mvtab[x] + iFcode;
68 :	edgomez	195	}
69 :	Isibaar	3
70 :	chl	530	if (y == 0) yb = 1;
71 :			else {
72 :			if (y < 0) y = -y;
73 :			y += (1 << (iFcode - 1)) - 1;
74 :			y >>= (iFcode - 1);
75 :			if (y > 32) y = 32;
76 :			yb = mvtab[y] + iFcode;
77 :			}
78 :			return xb + yb;
79 :	Isibaar	3	}
80 :
81 :	syskin	628	static int32_t
82 :			ChromaSAD(int dx, int dy, const SearchData * const data)
83 :	Isibaar	3	{
84 :	syskin	628	int sad;
85 :			dx = (dx >> 1) + roundtab_79[dx & 0x3];
86 :			dy = (dy >> 1) + roundtab_79[dy & 0x3];
87 :	Isibaar	3
88 :	syskin	712	if (dx == data->temp[5] && dy == data->temp[6]) return data->temp[7]; //it has been checked recently
89 :
90 :			switch (((dx & 1) << 1) \| (dy & 1)) {
91 :	syskin	628	case 0:
92 :			sad = sad8(data->CurU, data->RefCU + (dy/2) * (data->iEdgedWidth/2) + dx/2, data->iEdgedWidth/2);
93 :			sad += sad8(data->CurV, data->RefCV + (dy/2) * (data->iEdgedWidth/2) + dx/2, data->iEdgedWidth/2);
94 :			break;
95 :			case 1:
96 :			dx = dx / 2; dy = (dy - 1) / 2;
97 :			sad = sad8bi(data->CurU, data->RefCU + dy * (data->iEdgedWidth/2) + dx, data->RefCU + (dy+1) * (data->iEdgedWidth/2) + dx, data->iEdgedWidth/2);
98 :			sad += sad8bi(data->CurV, data->RefCV + dy * (data->iEdgedWidth/2) + dx, data->RefCV + (dy+1) * (data->iEdgedWidth/2) + dx, data->iEdgedWidth/2);
99 :			break;
100 :			case 2:
101 :			dx = (dx - 1) / 2; dy = dy / 2;
102 :			sad = sad8bi(data->CurU, data->RefCU + dy * (data->iEdgedWidth/2) + dx, data->RefCU + dy * (data->iEdgedWidth/2) + dx+1, data->iEdgedWidth/2);
103 :			sad += sad8bi(data->CurV, data->RefCV + dy * (data->iEdgedWidth/2) + dx, data->RefCV + dy * (data->iEdgedWidth/2) + dx+1, data->iEdgedWidth/2);
104 :			break;
105 :			default:
106 :			dx = (dx - 1) / 2; dy = (dy - 1) / 2;
107 :			interpolate8x8_halfpel_hv(data->RefQ,
108 :			data->RefCU + dy * (data->iEdgedWidth/2) + dx, data->iEdgedWidth/2,
109 :			data->rounding);
110 :			sad = sad8(data->CurU, data->RefQ, data->iEdgedWidth/2);
111 :			interpolate8x8_halfpel_hv(data->RefQ,
112 :			data->RefCV + dy * (data->iEdgedWidth/2) + dx, data->iEdgedWidth/2,
113 :			data->rounding);
114 :			sad += sad8(data->CurV, data->RefQ, data->iEdgedWidth/2);
115 :			break;
116 :	chl	530	}
117 :	syskin	712	data->temp[5] = dx; data->temp[6] = dy; data->temp[7] = sad; //backup
118 :	syskin	628	return sad;
119 :			}
120 :	Isibaar	3
121 :	syskin	663	static __inline const uint8_t *
122 :			GetReference(const int x, const int y, const int dir, const SearchData * const data)
123 :	Isibaar	606	{
124 :	syskin	663	// dir : 0 = forward, 1 = backward
125 :			switch ( (dir << 2) \| ((x&1)<<1) \| (y&1) ) {
126 :			case 0 : return data->Ref + x/2 + (y/2)*(data->iEdgedWidth);
127 :			case 1 : return data->RefV + x/2 + ((y-1)/2)*(data->iEdgedWidth);
128 :			case 2 : return data->RefH + (x-1)/2 + (y/2)*(data->iEdgedWidth);
129 :			case 3 : return data->RefHV + (x-1)/2 + ((y-1)/2)*(data->iEdgedWidth);
130 :			case 4 : return data->bRef + x/2 + (y/2)*(data->iEdgedWidth);
131 :			case 5 : return data->bRefV + x/2 + ((y-1)/2)*(data->iEdgedWidth);
132 :			case 6 : return data->bRefH + (x-1)/2 + (y/2)*(data->iEdgedWidth);
133 :			default : return data->bRefHV + (x-1)/2 + ((y-1)/2)*(data->iEdgedWidth);
134 :	Isibaar	606	}
135 :			}
136 :
137 :	syskin	663	static uint8_t *
138 :			Interpolate8x8qpel(const int x, const int y, const int block, const int dir, const SearchData * const data)
139 :	chl	530	{
140 :	syskin	663	// create or find a qpel-precision reference picture; return pointer to it
141 :	syskin	668	uint8_t * Reference = (uint8_t )data->RefQ + 16dir;
142 :	syskin	663	const int32_t iEdgedWidth = data->iEdgedWidth;
143 :			const uint32_t rounding = data->rounding;
144 :			const int halfpel_x = x/2;
145 :			const int halfpel_y = y/2;
146 :			const uint8_t ref1, ref2, ref3, ref4;
147 :	chl	326
148 :	syskin	663	ref1 = GetReference(halfpel_x, halfpel_y, dir, data); // this reference is used in all cases
149 :			ref1 += 8 * (block&1) + 8 * (block>>1) * iEdgedWidth;
150 :			switch( ((x&1)<<1) + (y&1) ) {
151 :			case 0: // pure halfpel position
152 :			Reference = (uint8_t *) GetReference(halfpel_x, halfpel_y, dir, data);
153 :			Reference += 8 * (block&1) + 8 * (block>>1) * iEdgedWidth;
154 :			break;
155 :	Isibaar	3
156 :	syskin	663	case 1: // x halfpel, y qpel - top or bottom during qpel refinement
157 :			ref2 = GetReference(halfpel_x, y - halfpel_y, dir, data);
158 :			ref2 += 8 * (block&1) + 8 * (block>>1) * iEdgedWidth;
159 :	Isibaar	665	interpolate8x8_avg2(Reference, ref1, ref2, iEdgedWidth, rounding, 8);
160 :	syskin	663	break;
161 :	Isibaar	3
162 :	syskin	663	case 2: // x qpel, y halfpel - left or right during qpel refinement
163 :			ref2 = GetReference(x - halfpel_x, halfpel_y, dir, data);
164 :			ref2 += 8 * (block&1) + 8 * (block>>1) * iEdgedWidth;
165 :	Isibaar	665	interpolate8x8_avg2(Reference, ref1, ref2, iEdgedWidth, rounding, 8);
166 :	syskin	663	break;
167 :	Isibaar	3
168 :	syskin	663	default: // x and y in qpel resolution - the "corners" (top left/right and
169 :			// bottom left/right) during qpel refinement
170 :			ref2 = GetReference(halfpel_x, y - halfpel_y, dir, data);
171 :			ref3 = GetReference(x - halfpel_x, halfpel_y, dir, data);
172 :			ref4 = GetReference(x - halfpel_x, y - halfpel_y, dir, data);
173 :			ref2 += 8 * (block&1) + 8 * (block>>1) * iEdgedWidth;
174 :			ref3 += 8 * (block&1) + 8 * (block>>1) * iEdgedWidth;
175 :			ref4 += 8 * (block&1) + 8 * (block>>1) * iEdgedWidth;
176 :			interpolate8x8_avg4(Reference, ref1, ref2, ref3, ref4, iEdgedWidth, rounding);
177 :			break;
178 :			}
179 :			return Reference;
180 :	Isibaar	3	}
181 :
182 :	syskin	663	static uint8_t *
183 :			Interpolate16x16qpel(const int x, const int y, const int dir, const SearchData * const data)
184 :	Isibaar	580	{
185 :	syskin	663	// create or find a qpel-precision reference picture; return pointer to it
186 :	syskin	668	uint8_t * Reference = (uint8_t )data->RefQ + 16dir;
187 :	syskin	663	const int32_t iEdgedWidth = data->iEdgedWidth;
188 :			const uint32_t rounding = data->rounding;
189 :			const int halfpel_x = x/2;
190 :			const int halfpel_y = y/2;
191 :	Isibaar	580	const uint8_t ref1, ref2, ref3, ref4;
192 :
193 :	syskin	663	ref1 = GetReference(halfpel_x, halfpel_y, dir, data); // this reference is used in all cases
194 :			switch( ((x&1)<<1) + (y&1) ) {
195 :			case 0: // pure halfpel position
196 :			return (uint8_t *) GetReference(halfpel_x, halfpel_y, dir, data);
197 :	Isibaar	580	case 1: // x halfpel, y qpel - top or bottom during qpel refinement
198 :	syskin	663	ref2 = GetReference(halfpel_x, y - halfpel_y, dir, data);
199 :	Isibaar	665	interpolate8x8_avg2(Reference, ref1, ref2, iEdgedWidth, rounding, 8);
200 :			interpolate8x8_avg2(Reference+8, ref1+8, ref2+8, iEdgedWidth, rounding, 8);
201 :			interpolate8x8_avg2(Reference+8iEdgedWidth, ref1+8iEdgedWidth, ref2+8*iEdgedWidth, iEdgedWidth, rounding, 8);
202 :			interpolate8x8_avg2(Reference+8iEdgedWidth+8, ref1+8iEdgedWidth+8, ref2+8*iEdgedWidth+8, iEdgedWidth, rounding, 8);
203 :	Isibaar	580	break;
204 :
205 :			case 2: // x qpel, y halfpel - left or right during qpel refinement
206 :	syskin	663	ref2 = GetReference(x - halfpel_x, halfpel_y, dir, data);
207 :	Isibaar	665	interpolate8x8_avg2(Reference, ref1, ref2, iEdgedWidth, rounding, 8);
208 :			interpolate8x8_avg2(Reference+8, ref1+8, ref2+8, iEdgedWidth, rounding, 8);
209 :			interpolate8x8_avg2(Reference+8iEdgedWidth, ref1+8iEdgedWidth, ref2+8*iEdgedWidth, iEdgedWidth, rounding, 8);
210 :			interpolate8x8_avg2(Reference+8iEdgedWidth+8, ref1+8iEdgedWidth+8, ref2+8*iEdgedWidth+8, iEdgedWidth, rounding, 8);
211 :	Isibaar	580	break;
212 :
213 :			default: // x and y in qpel resolution - the "corners" (top left/right and
214 :			// bottom left/right) during qpel refinement
215 :	syskin	663	ref2 = GetReference(halfpel_x, y - halfpel_y, dir, data);
216 :			ref3 = GetReference(x - halfpel_x, halfpel_y, dir, data);
217 :			ref4 = GetReference(x - halfpel_x, y - halfpel_y, dir, data);
218 :	Isibaar	580	interpolate8x8_avg4(Reference, ref1, ref2, ref3, ref4, iEdgedWidth, rounding);
219 :			interpolate8x8_avg4(Reference+8, ref1+8, ref2+8, ref3+8, ref4+8, iEdgedWidth, rounding);
220 :			interpolate8x8_avg4(Reference+8iEdgedWidth, ref1+8iEdgedWidth, ref2+8iEdgedWidth, ref3+8iEdgedWidth, ref4+8*iEdgedWidth, iEdgedWidth, rounding);
221 :			interpolate8x8_avg4(Reference+8iEdgedWidth+8, ref1+8iEdgedWidth+8, ref2+8iEdgedWidth+8, ref3+8iEdgedWidth+8, ref4+8*iEdgedWidth+8, iEdgedWidth, rounding);
222 :			break;
223 :			}
224 :	syskin	663	return Reference;
225 :			}
226 :
227 :			/* CHECK_CANDIATE FUNCTIONS START */
228 :
229 :			static void
230 :			CheckCandidate16(const int x, const int y, const int Direction, int * const dir, const SearchData * const data)
231 :			{
232 :			int t, xc, yc;
233 :			const uint8_t * Reference;
234 :			VECTOR * current;
235 :
236 :			if (( x > data->max_dx) \|\| ( x < data->min_dx)
237 :			\|\| ( y > data->max_dy) \|\| (y < data->min_dy)) return;
238 :
239 :			if (data->qpel_precision) { // x and y are in 1/4 precision
240 :			Reference = Interpolate16x16qpel(x, y, 0, data);
241 :			xc = x/2; yc = y/2; //for chroma sad
242 :			current = data->currentQMV;
243 :			} else {
244 :	syskin	712	Reference = GetReference(x, y, 0, data);
245 :	syskin	663	current = data->currentMV;
246 :			xc = x; yc = y;
247 :			}
248 :	syskin	712	t = d_mv_bits(x - data->predMV.x, y - data->predMV.y, data->iFcode, data->qpel && !data->qpel_precision, 0);
249 :	Isibaar	580
250 :	syskin	663	data->temp[0] = sad16v(data->Cur, Reference, data->iEdgedWidth, data->temp + 1);
251 :	Isibaar	580
252 :	syskin	628	data->temp[0] += (data->lambda16 * t * data->temp[0])/1000;
253 :			data->temp[1] += (data->lambda8 * t * (data->temp[1] + NEIGH_8X8_BIAS))/100;
254 :	Isibaar	580
255 :	syskin	663	if (data->chroma) data->temp[0] += ChromaSAD(xc, yc, data);
256 :	syskin	628
257 :	Isibaar	580	if (data->temp[0] < data->iMinSAD[0]) {
258 :			data->iMinSAD[0] = data->temp[0];
259 :	syskin	663	current[0].x = x; current[0].y = y;
260 :			*dir = Direction; }
261 :	Isibaar	580
262 :			if (data->temp[1] < data->iMinSAD[1]) {
263 :	syskin	663	data->iMinSAD[1] = data->temp[1]; current[1].x = x; current[1].y= y; }
264 :	Isibaar	580	if (data->temp[2] < data->iMinSAD[2]) {
265 :	syskin	663	data->iMinSAD[2] = data->temp[2]; current[2].x = x; current[2].y = y; }
266 :	Isibaar	580	if (data->temp[3] < data->iMinSAD[3]) {
267 :	syskin	663	data->iMinSAD[3] = data->temp[3]; current[3].x = x; current[3].y = y; }
268 :	Isibaar	580	if (data->temp[4] < data->iMinSAD[4]) {
269 :	syskin	663	data->iMinSAD[4] = data->temp[4]; current[4].x = x; current[4].y = y; }
270 :
271 :	Isibaar	580	}
272 :
273 :			static void
274 :	syskin	704	CheckCandidate32(const int x, const int y, const int Direction, int * const dir, const SearchData * const data)
275 :			{
276 :			int t;
277 :			const uint8_t * Reference;
278 :
279 :			if ( (!(x&1) && x !=0) \|\| (!(y&1) && y !=0) \|\| //non-zero integer value
280 :			( x > data->max_dx) \|\| ( x < data->min_dx)
281 :			\|\| ( y > data->max_dy) \|\| (y < data->min_dy)) return;
282 :
283 :	syskin	712	Reference = GetReference(x, y, 0, data);
284 :			t = d_mv_bits(x - data->predMV.x, y - data->predMV.y, data->iFcode, 0, 1);
285 :	syskin	704
286 :			data->temp[0] = sad32v_c(data->Cur, Reference, data->iEdgedWidth, data->temp + 1);
287 :
288 :			data->temp[0] += (data->lambda16 * t * data->temp[0])/1000;
289 :			data->temp[1] += (data->lambda8 * t * (data->temp[1] + NEIGH_8X8_BIAS))/100;
290 :
291 :			if (data->temp[0] < data->iMinSAD[0]) {
292 :			data->iMinSAD[0] = data->temp[0];
293 :			data->currentMV[0].x = x; data->currentMV[0].y = y;
294 :			*dir = Direction; }
295 :
296 :			if (data->temp[1] < data->iMinSAD[1]) {
297 :			data->iMinSAD[1] = data->temp[1]; data->currentMV[1].x = x; data->currentMV[1].y = y; }
298 :			if (data->temp[2] < data->iMinSAD[2]) {
299 :			data->iMinSAD[2] = data->temp[2]; data->currentMV[2].x = x; data->currentMV[2].y = y; }
300 :			if (data->temp[3] < data->iMinSAD[3]) {
301 :			data->iMinSAD[3] = data->temp[3]; data->currentMV[3].x = x; data->currentMV[3].y = y; }
302 :			if (data->temp[4] < data->iMinSAD[4]) {
303 :			data->iMinSAD[4] = data->temp[4]; data->currentMV[4].x = x; data->currentMV[4].y = y; }
304 :			}
305 :
306 :			static void
307 :	syskin	663	CheckCandidate16no4v(const int x, const int y, const int Direction, int * const dir, const SearchData * const data)
308 :	syskin	658	{
309 :			int32_t sad;
310 :	syskin	663	const uint8_t * Reference;
311 :			int t;
312 :			VECTOR * current;
313 :	syskin	658
314 :			if (( x > data->max_dx) \|\| ( x < data->min_dx)
315 :			\|\| ( y > data->max_dy) \|\| (y < data->min_dy)) return;
316 :
317 :	syskin	712	if (data->rrv)
318 :	syskin	704	if ( (!(x&1) && x !=0) \|\| (!(y&1) && y !=0) ) return; //non-zero integer value
319 :
320 :	syskin	663	if (data->qpel_precision) { // x and y are in 1/4 precision
321 :			Reference = Interpolate16x16qpel(x, y, 0, data);
322 :			current = data->currentQMV;
323 :			} else {
324 :	syskin	712	Reference = GetReference(x, y, 0, data);
325 :	syskin	663	current = data->currentMV;
326 :	syskin	658	}
327 :	syskin	712	t = d_mv_bits(x - data->predMV.x, y - data->predMV.y, data->iFcode,
328 :			data->qpel && !data->qpel_precision && !data->rrv, data->rrv);
329 :	syskin	658
330 :			sad = sad16(data->Cur, Reference, data->iEdgedWidth, 256*4096);
331 :	syskin	663	sad += (data->lambda16 * t * sad)/1000;
332 :	syskin	658
333 :	syskin	663	if (sad < *(data->iMinSAD)) {
334 :			*(data->iMinSAD) = sad;
335 :			current->x = x; current->y = y;
336 :			*dir = Direction; }
337 :	syskin	658	}
338 :
339 :			static void
340 :	Isibaar	539	CheckCandidate16no4vI(const int x, const int y, const int Direction, int * const dir, const SearchData * const data)
341 :			{
342 :	syskin	658	// maximum speed - for P/B/I decision
343 :	Isibaar	539	int32_t sad;
344 :
345 :			if (( x > data->max_dx) \|\| ( x < data->min_dx)
346 :			\|\| ( y > data->max_dy) \|\| (y < data->min_dy)) return;
347 :
348 :	syskin	601	sad = sad16(data->Cur, data->Ref + x/2 + (y/2)*(data->iEdgedWidth),
349 :	Isibaar	539	data->iEdgedWidth, 256*4096);
350 :
351 :			if (sad < *(data->iMinSAD)) {
352 :			*(data->iMinSAD) = sad;
353 :			data->currentMV[0].x = x; data->currentMV[0].y = y;
354 :			*dir = Direction; }
355 :			}
356 :
357 :
358 :			static void
359 :	chl	530	CheckCandidateInt(const int xf, const int yf, const int Direction, int * const dir, const SearchData * const data)
360 :			{
361 :			int32_t sad;
362 :	syskin	663	int xb, yb, t;
363 :	chl	530	const uint8_t ReferenceF, ReferenceB;
364 :	syskin	663	VECTOR *current;
365 :	Isibaar	3
366 :	chl	530	if (( xf > data->max_dx) \|\| ( xf < data->min_dx)
367 :			\|\| ( yf > data->max_dy) \|\| (yf < data->min_dy)) return;
368 :	Isibaar	3
369 :	syskin	663	if (data->qpel_precision) {
370 :			ReferenceF = Interpolate16x16qpel(xf, yf, 0, data);
371 :			xb = data->currentQMV[1].x; yb = data->currentQMV[1].y;
372 :			current = data->currentQMV;
373 :			ReferenceB = Interpolate16x16qpel(xb, yb, 1, data);
374 :			} else {
375 :	syskin	712	ReferenceF = GetReference(xf, yf, 0, data);
376 :	syskin	663	xb = data->currentMV[1].x; yb = data->currentMV[1].y;
377 :	syskin	712	ReferenceB = GetReference(xb, yb, 1, data);
378 :	syskin	663	current = data->currentMV;
379 :	chl	530	}
380 :	edgomez	195
381 :	syskin	712	t = d_mv_bits(xf - data->predMV.x, yf - data->predMV.y, data->iFcode, data->qpel && !data->qpel_precision, 0)
382 :			+ d_mv_bits(xb - data->bpredMV.x, yb - data->bpredMV.y, data->iFcode, data->qpel && !data->qpel_precision, 0);
383 :
384 :	syskin	628	sad = sad16bi(data->Cur, ReferenceF, ReferenceB, data->iEdgedWidth);
385 :	syskin	663	sad += (data->lambda16 * t * sad)/1000;
386 :	syskin	628
387 :	chl	530	if (sad < *(data->iMinSAD)) {
388 :			*(data->iMinSAD) = sad;
389 :	syskin	663	current->x = xf; current->y = yf;
390 :	chl	530	*dir = Direction; }
391 :	Isibaar	3	}
392 :
393 :	chl	530	static void
394 :			CheckCandidateDirect(const int x, const int y, const int Direction, int * const dir, const SearchData * const data)
395 :	Isibaar	3	{
396 :	syskin	628	int32_t sad = 0;
397 :	chl	530	int k;
398 :			const uint8_t *ReferenceF;
399 :			const uint8_t *ReferenceB;
400 :			VECTOR mvs, b_mvs;
401 :	Isibaar	3
402 :	chl	530	if (( x > 31) \|\| ( x < -32) \|\| ( y > 31) \|\| (y < -32)) return;
403 :	Isibaar	3
404 :	chl	530	for (k = 0; k < 4; k++) {
405 :			mvs.x = data->directmvF[k].x + x;
406 :			b_mvs.x = ((x == 0) ?
407 :			data->directmvB[k].x
408 :			: mvs.x - data->referencemv[k].x);
409 :	Isibaar	3
410 :	chl	530	mvs.y = data->directmvF[k].y + y;
411 :			b_mvs.y = ((y == 0) ?
412 :			data->directmvB[k].y
413 :			: mvs.y - data->referencemv[k].y);
414 :
415 :			if (( mvs.x > data->max_dx ) \|\| ( mvs.x < data->min_dx )
416 :			\|\| ( mvs.y > data->max_dy ) \|\| ( mvs.y < data->min_dy )
417 :			\|\| ( b_mvs.x > data->max_dx ) \|\| ( b_mvs.x < data->min_dx )
418 :			\|\| ( b_mvs.y > data->max_dy ) \|\| ( b_mvs.y < data->min_dy )) return;
419 :	Isibaar	3
420 :	syskin	663	if (!data->qpel) {
421 :			mvs.x = 2; mvs.y = 2;
422 :			b_mvs.x = 2; b_mvs.y = 2; //we move to qpel precision anyway
423 :	chl	530	}
424 :	syskin	663	ReferenceF = Interpolate8x8qpel(mvs.x, mvs.y, k, 0, data);
425 :			ReferenceB = Interpolate8x8qpel(b_mvs.x, b_mvs.y, k, 1, data);
426 :	chl	530
427 :			sad += sad8bi(data->Cur + 8(k&1) + 8(k>>1)*(data->iEdgedWidth),
428 :	syskin	663	ReferenceF, ReferenceB,
429 :	chl	530	data->iEdgedWidth);
430 :			if (sad > *(data->iMinSAD)) return;
431 :	edgomez	78	}
432 :	chl	530
433 :	syskin	712	sad += (data->lambda16 * d_mv_bits(x, y, 1, 0, 0) * sad)/1000;
434 :	syskin	628
435 :	chl	530	if (sad < *(data->iMinSAD)) {
436 :			*(data->iMinSAD) = sad;
437 :			data->currentMV->x = x; data->currentMV->y = y;
438 :			*dir = Direction; }
439 :	Isibaar	3	}
440 :
441 :	chl	530	static void
442 :			CheckCandidateDirectno4v(const int x, const int y, const int Direction, int * const dir, const SearchData * const data)
443 :	chl	96	{
444 :	chl	530	int32_t sad;
445 :			const uint8_t *ReferenceF;
446 :			const uint8_t *ReferenceB;
447 :			VECTOR mvs, b_mvs;
448 :	chl	96
449 :	syskin	576	if (( x > 31) \|\| ( x < -32) \|\| ( y > 31) \|\| (y < -32)) return;
450 :	edgomez	195
451 :	chl	530	mvs.x = data->directmvF[0].x + x;
452 :			b_mvs.x = ((x == 0) ?
453 :			data->directmvB[0].x
454 :			: mvs.x - data->referencemv[0].x);
455 :	edgomez	195
456 :	chl	530	mvs.y = data->directmvF[0].y + y;
457 :			b_mvs.y = ((y == 0) ?
458 :			data->directmvB[0].y
459 :			: mvs.y - data->referencemv[0].y);
460 :
461 :			if (( mvs.x > data->max_dx ) \|\| ( mvs.x < data->min_dx )
462 :			\|\| ( mvs.y > data->max_dy ) \|\| ( mvs.y < data->min_dy )
463 :			\|\| ( b_mvs.x > data->max_dx ) \|\| ( b_mvs.x < data->min_dx )
464 :			\|\| ( b_mvs.y > data->max_dy ) \|\| ( b_mvs.y < data->min_dy )) return;
465 :	chl	96
466 :	syskin	663	if (!data->qpel) {
467 :			mvs.x = 2; mvs.y = 2;
468 :			b_mvs.x = 2; b_mvs.y = 2; //we move to qpel precision anyway
469 :	syskin	712	}
470 :	syskin	663	ReferenceF = Interpolate16x16qpel(mvs.x, mvs.y, 0, data);
471 :			ReferenceB = Interpolate16x16qpel(b_mvs.x, b_mvs.y, 1, data);
472 :	chl	96
473 :	syskin	628	sad = sad16bi(data->Cur, ReferenceF, ReferenceB, data->iEdgedWidth);
474 :	syskin	712	sad += (data->lambda16 * d_mv_bits(x, y, 1, 0, 0) * sad)/1000;
475 :	chl	96
476 :	chl	530	if (sad < *(data->iMinSAD)) {
477 :			*(data->iMinSAD) = sad;
478 :			data->currentMV->x = x; data->currentMV->y = y;
479 :			*dir = Direction; }
480 :			}
481 :	chl	96
482 :	chl	530	static void
483 :			CheckCandidate8(const int x, const int y, const int Direction, int * const dir, const SearchData * const data)
484 :			{
485 :	syskin	628	int32_t sad; int t;
486 :	chl	530	const uint8_t * Reference;
487 :	edgomez	195
488 :	chl	530	if (( x > data->max_dx) \|\| ( x < data->min_dx)
489 :			\|\| ( y > data->max_dy) \|\| (y < data->min_dy)) return;
490 :	chl	96
491 :	syskin	663	if (data->qpel) Reference = Interpolate16x16qpel(x, y, 0, data);
492 :	syskin	712	else Reference = GetReference(x, y, 0, data);
493 :	edgomez	195
494 :	chl	530	sad = sad8(data->Cur, Reference, data->iEdgedWidth);
495 :	syskin	712	t = d_mv_bits(x - data->predMV.x, y - data->predMV.y, data->iFcode, data->qpel && !data->qpel_precision, 0);
496 :	edgomez	195
497 :	syskin	628	sad += (data->lambda8 * t * (sad+NEIGH_8X8_BIAS))/100;
498 :	chl	96
499 :	Isibaar	606	if (sad < *(data->iMinSAD)) {
500 :			*(data->iMinSAD) = sad;
501 :			data->currentMV->x = x; data->currentMV->y = y;
502 :			*dir = Direction; }
503 :			}
504 :
505 :	Isibaar	539	/* CHECK_CANDIATE FUNCTIONS END */
506 :	chl	96
507 :	chl	530	/* MAINSEARCH FUNCTIONS START */
508 :	edgomez	195
509 :	chl	530	static void
510 :			AdvDiamondSearch(int x, int y, const SearchData * const data, int bDirection)
511 :	chl	181	{
512 :
513 :			/* directions: 1 - left (x-1); 2 - right (x+1), 4 - up (y-1); 8 - down (y+1) */
514 :
515 :	syskin	712	int iDirection;
516 :	edgomez	195
517 :	syskin	712	for(;;) { //forever
518 :			iDirection = 0;
519 :			if (bDirection & 1) CHECK_CANDIDATE(x - iDiamondSize, y, 1);
520 :			if (bDirection & 2) CHECK_CANDIDATE(x + iDiamondSize, y, 2);
521 :			if (bDirection & 4) CHECK_CANDIDATE(x, y - iDiamondSize, 4);
522 :			if (bDirection & 8) CHECK_CANDIDATE(x, y + iDiamondSize, 8);
523 :	chl	181
524 :	syskin	712	/* now we're doing diagonal checks near our candidate */
525 :	chl	181
526 :	syskin	712	if (iDirection) { //checking if anything found
527 :			bDirection = iDirection;
528 :			iDirection = 0;
529 :			x = data->currentMV->x; y = data->currentMV->y;
530 :			if (bDirection & 3) { //our candidate is left or right
531 :			CHECK_CANDIDATE(x, y + iDiamondSize, 8);
532 :			CHECK_CANDIDATE(x, y - iDiamondSize, 4);
533 :			} else { // what remains here is up or down
534 :			CHECK_CANDIDATE(x + iDiamondSize, y, 2);
535 :			CHECK_CANDIDATE(x - iDiamondSize, y, 1);
536 :			}
537 :	chl	181
538 :	syskin	712	if (iDirection) {
539 :			bDirection += iDirection;
540 :			x = data->currentMV->x; y = data->currentMV->y;
541 :	chl	181	}
542 :	syskin	712	} else { //about to quit, eh? not so fast....
543 :			switch (bDirection) {
544 :			case 2:
545 :			CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2 + 4);
546 :			CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2 + 8);
547 :			break;
548 :			case 1:
549 :			CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1 + 4);
550 :			CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1 + 8);
551 :			break;
552 :			case 2 + 4:
553 :			CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1 + 4);
554 :			CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2 + 4);
555 :			CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2 + 8);
556 :			break;
557 :			case 4:
558 :			CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2 + 4);
559 :			CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1 + 4);
560 :			break;
561 :			case 8:
562 :			CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2 + 8);
563 :			CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1 + 8);
564 :			break;
565 :			case 1 + 4:
566 :			CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1 + 8);
567 :			CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1 + 4);
568 :			CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2 + 4);
569 :			break;
570 :			case 2 + 8:
571 :			CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1 + 4);
572 :			CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1 + 8);
573 :			CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2 + 8);
574 :			break;
575 :			case 1 + 8:
576 :			CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2 + 4);
577 :			CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2 + 8);
578 :			CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1 + 8);
579 :			break;
580 :			default: //1+2+4+8 == we didn't find anything at all
581 :			CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1 + 4);
582 :			CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1 + 8);
583 :			CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2 + 4);
584 :			CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2 + 8);
585 :			break;
586 :			}
587 :			if (!iDirection) break; //ok, the end. really
588 :			bDirection = iDirection;
589 :			x = data->currentMV->x; y = data->currentMV->y;
590 :	chl	181	}
591 :	syskin	712	}
592 :	chl	181	}
593 :
594 :	chl	530	static void
595 :			SquareSearch(int x, int y, const SearchData * const data, int bDirection)
596 :	chl	326	{
597 :	chl	530	int iDirection;
598 :	chl	326
599 :	chl	530	do {
600 :			iDirection = 0;
601 :			if (bDirection & 1) CHECK_CANDIDATE(x - iDiamondSize, y, 1+16+64);
602 :			if (bDirection & 2) CHECK_CANDIDATE(x + iDiamondSize, y, 2+32+128);
603 :			if (bDirection & 4) CHECK_CANDIDATE(x, y - iDiamondSize, 4+16+32);
604 :			if (bDirection & 8) CHECK_CANDIDATE(x, y + iDiamondSize, 8+64+128);
605 :			if (bDirection & 16) CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1+4+16+32+64);
606 :			if (bDirection & 32) CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2+4+16+32+128);
607 :			if (bDirection & 64) CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1+8+16+64+128);
608 :			if (bDirection & 128) CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2+8+32+64+128);
609 :	chl	326
610 :	chl	530	bDirection = iDirection;
611 :			x = data->currentMV->x; y = data->currentMV->y;
612 :			} while (iDirection);
613 :	chl	346	}
614 :
615 :	chl	530	static void
616 :			DiamondSearch(int x, int y, const SearchData * const data, int bDirection)
617 :	chl	346	{
618 :
619 :	chl	181	/* directions: 1 - left (x-1); 2 - right (x+1), 4 - up (y-1); 8 - down (y+1) */
620 :
621 :	syskin	712	int iDirection;
622 :	edgomez	195
623 :	syskin	712	do {
624 :			iDirection = 0;
625 :			if (bDirection & 1) CHECK_CANDIDATE(x - iDiamondSize, y, 1);
626 :			if (bDirection & 2) CHECK_CANDIDATE(x + iDiamondSize, y, 2);
627 :			if (bDirection & 4) CHECK_CANDIDATE(x, y - iDiamondSize, 4);
628 :			if (bDirection & 8) CHECK_CANDIDATE(x, y + iDiamondSize, 8);
629 :	chl	181
630 :	syskin	712	/* now we're doing diagonal checks near our candidate */
631 :	chl	181
632 :	syskin	712	if (iDirection) { //checking if anything found
633 :			bDirection = iDirection;
634 :			iDirection = 0;
635 :			x = data->currentMV->x; y = data->currentMV->y;
636 :			if (bDirection & 3) { //our candidate is left or right
637 :			CHECK_CANDIDATE(x, y + iDiamondSize, 8);
638 :			CHECK_CANDIDATE(x, y - iDiamondSize, 4);
639 :			} else { // what remains here is up or down
640 :			CHECK_CANDIDATE(x + iDiamondSize, y, 2);
641 :			CHECK_CANDIDATE(x - iDiamondSize, y, 1);
642 :	chl	181	}
643 :	syskin	712	bDirection += iDirection;
644 :			x = data->currentMV->x; y = data->currentMV->y;
645 :	chl	181	}
646 :	syskin	712	}
647 :			while (iDirection);
648 :	chl	181	}
649 :
650 :	chl	530	/* MAINSEARCH FUNCTIONS END */
651 :	chl	181
652 :	chl	530	/* HALFPELREFINE COULD BE A MAINSEARCH FUNCTION, BUT THERE IS NO NEED FOR IT */
653 :
654 :			static void
655 :	syskin	663	SubpelRefine(const SearchData * const data)
656 :	chl	96	{
657 :	syskin	663	/* Do a half-pel or q-pel refinement */
658 :			VECTOR backupMV;
659 :	chl	530	int iDirection; //not needed
660 :	chl	96
661 :	syskin	663	if (data->qpel_precision)
662 :			backupMV = *(data->currentQMV);
663 :			else backupMV = *(data->currentMV);
664 :	edgomez	195
665 :	Isibaar	580	CHECK_CANDIDATE(backupMV.x - 1, backupMV.y - 1, 0);
666 :			CHECK_CANDIDATE(backupMV.x + 1, backupMV.y - 1, 0);
667 :			CHECK_CANDIDATE(backupMV.x - 1, backupMV.y + 1, 0);
668 :			CHECK_CANDIDATE(backupMV.x + 1, backupMV.y + 1, 0);
669 :
670 :			CHECK_CANDIDATE(backupMV.x - 1, backupMV.y, 0);
671 :			CHECK_CANDIDATE(backupMV.x + 1, backupMV.y, 0);
672 :
673 :			CHECK_CANDIDATE(backupMV.x, backupMV.y + 1, 0);
674 :			CHECK_CANDIDATE(backupMV.x, backupMV.y - 1, 0);
675 :			}
676 :
677 :	chl	530	static __inline int
678 :			SkipDecisionP(const IMAGE * current, const IMAGE * reference,
679 :			const int x, const int y,
680 :	syskin	704	const uint32_t iEdgedWidth, const uint32_t iQuant, int rrv)
681 :	chl	96
682 :	Isibaar	3	{
683 :	chl	530	/* keep repeating checks for all b-frames before this P frame,
684 :			to make sure that SKIP is possible (todo)
685 :			how: if skip is not possible set sad00 to a very high value */
686 :	syskin	704	if(rrv) {
687 :			uint32_t sadC = sad16(current->u + x16 + y(iEdgedWidth/2)*16,
688 :			reference->u + x16 + y(iEdgedWidth/2)16, iEdgedWidth/2, 2564096);
689 :			if (sadC > iQuant * MAX_CHROMA_SAD_FOR_SKIP*4) return 0;
690 :			sadC += sad16(current->v + (x + y(iEdgedWidth/2))16,
691 :			reference->v + (x + y(iEdgedWidth/2))16, iEdgedWidth/2, 256*4096);
692 :			if (sadC > iQuant * MAX_CHROMA_SAD_FOR_SKIP*4) return 0;
693 :			return 1;
694 :			} else {
695 :			uint32_t sadC = sad8(current->u + x8 + y(iEdgedWidth/2)*8,
696 :			reference->u + x8 + y(iEdgedWidth/2)*8, iEdgedWidth/2);
697 :			if (sadC > iQuant * MAX_CHROMA_SAD_FOR_SKIP) return 0;
698 :			sadC += sad8(current->v + (x + y(iEdgedWidth/2))8,
699 :			reference->v + (x + y(iEdgedWidth/2))8, iEdgedWidth/2);
700 :			if (sadC > iQuant * MAX_CHROMA_SAD_FOR_SKIP) return 0;
701 :			return 1;
702 :			}
703 :	chl	530	}
704 :	edgomez	195
705 :	chl	530	static __inline void
706 :			SkipMacroblockP(MACROBLOCK *pMB, const int32_t sad)
707 :			{
708 :			pMB->mode = MODE_NOT_CODED;
709 :	Isibaar	539	pMB->mvs[0].x = pMB->mvs[1].x = pMB->mvs[2].x = pMB->mvs[3].x = 0;
710 :			pMB->mvs[0].y = pMB->mvs[1].y = pMB->mvs[2].y = pMB->mvs[3].y = 0;
711 :	syskin	628
712 :	Isibaar	580	pMB->qmvs[0].x = pMB->qmvs[1].x = pMB->qmvs[2].x = pMB->qmvs[3].x = 0;
713 :			pMB->qmvs[0].y = pMB->qmvs[1].y = pMB->qmvs[2].y = pMB->qmvs[3].y = 0;
714 :
715 :	chl	530	pMB->sad16 = pMB->sad8[0] = pMB->sad8[1] = pMB->sad8[2] = pMB->sad8[3] = sad;
716 :	Isibaar	3	}
717 :
718 :	syskin	628	bool
719 :	chl	530	MotionEstimation(MBParam * const pParam,
720 :			FRAMEINFO * const current,
721 :			FRAMEINFO * const reference,
722 :			const IMAGE * const pRefH,
723 :			const IMAGE * const pRefV,
724 :			const IMAGE * const pRefHV,
725 :			const uint32_t iLimit)
726 :	Isibaar	3	{
727 :	chl	530	MACROBLOCK *const pMBs = current->mbs;
728 :			const IMAGE *const pCurrent = &current->image;
729 :			const IMAGE *const pRef = &reference->image;
730 :	Isibaar	3
731 :	chl	530	const VECTOR zeroMV = { 0, 0 };
732 :	Isibaar	3
733 :	syskin	704	uint32_t mb_width = pParam->mb_width;
734 :			uint32_t mb_height = pParam->mb_height;
735 :	suxen_drol	702
736 :	chl	530	uint32_t x, y;
737 :			uint32_t iIntra = 0;
738 :	syskin	628	int32_t InterBias, quant = current->quant, sad00;
739 :	Isibaar	580	uint8_t *qimage;
740 :	edgomez	195
741 :	Isibaar	539	// some pre-initialized thingies for SearchP
742 :	syskin	712	int32_t temp[8];
743 :	Isibaar	539	VECTOR currentMV[5];
744 :	Isibaar	580	VECTOR currentQMV[5];
745 :	Isibaar	539	int32_t iMinSAD[5];
746 :			SearchData Data;
747 :	syskin	704	memset(&Data, 0, sizeof(SearchData));
748 :	Isibaar	539	Data.iEdgedWidth = pParam->edged_width;
749 :			Data.currentMV = currentMV;
750 :	Isibaar	580	Data.currentQMV = currentQMV;
751 :	Isibaar	539	Data.iMinSAD = iMinSAD;
752 :			Data.temp = temp;
753 :			Data.iFcode = current->fcode;
754 :	Isibaar	580	Data.rounding = pParam->m_rounding_type;
755 :	syskin	628	Data.qpel = pParam->m_quarterpel;
756 :			Data.chroma = current->global_flags & XVID_ME_COLOUR;
757 :	syskin	704	Data.rrv = current->global_flags & XVID_REDUCED;
758 :	Isibaar	539
759 :	syskin	704	if ((current->global_flags & XVID_REDUCED)) {
760 :	suxen_drol	702	mb_width = (pParam->width + 31) / 32;
761 :			mb_height = (pParam->height + 31) / 32;
762 :	syskin	704	Data.qpel = Data.chroma = 0;
763 :	suxen_drol	702	}
764 :
765 :	Isibaar	580	if((qimage = (uint8_t ) malloc(32 pParam->edged_width)) == NULL)
766 :	syskin	594	return 1; // allocate some mem for qpel interpolated blocks
767 :	Isibaar	580	// somehow this is dirty since I think we shouldn't use malloc outside
768 :			// encoder_create() - so please fix me!
769 :	syskin	628	Data.RefQ = qimage;
770 :	chl	530	if (sadInit) (*sadInit) ();
771 :	edgomez	195
772 :	suxen_drol	702	for (y = 0; y < mb_height; y++) {
773 :			for (x = 0; x < mb_width; x++) {
774 :	chl	530	MACROBLOCK pMB = &pMBs[x + y pParam->mb_width];
775 :	syskin	628
776 :	syskin	704	if (Data.rrv) pMB->sad16 =
777 :			sad32v_c(pCurrent->y + (x + y * pParam->edged_width) * 32,
778 :			pRef->y + (x + y * pParam->edged_width) * 32,
779 :			pParam->edged_width, pMB->sad8 );
780 :
781 :			else pMB->sad16 =
782 :			sad16v(pCurrent->y + (x + y * pParam->edged_width) * 16,
783 :	chl	530	pRef->y + (x + y * pParam->edged_width) * 16,
784 :			pParam->edged_width, pMB->sad8 );
785 :	edgomez	195
786 :	syskin	628	if (Data.chroma) {
787 :			pMB->sad16 += sad8(pCurrent->u + x8 + y(pParam->edged_width/2)*8,
788 :			pRef->u + x8 + y(pParam->edged_width/2)*8, pParam->edged_width/2);
789 :
790 :			pMB->sad16 += sad8(pCurrent->v + (x + y(pParam->edged_width/2))8,
791 :			pRef->v + (x + y(pParam->edged_width/2))8, pParam->edged_width/2);
792 :			}
793 :
794 :			sad00 = pMB->sad16; //if no gmc; else sad00 = (..)
795 :
796 :	chl	530	if (!(current->global_flags & XVID_LUMIMASKING)) {
797 :			pMB->dquant = NO_CHANGE;
798 :	syskin	601	pMB->quant = current->quant;
799 :			} else {
800 :	syskin	574	if (pMB->dquant != NO_CHANGE) {
801 :			quant += DQtab[pMB->dquant];
802 :			if (quant > 31) quant = 31;
803 :			else if (quant < 1) quant = 1;
804 :			}
805 :	syskin	601	pMB->quant = quant;
806 :			}
807 :	chl	181
808 :	syskin	628	//initial skip decision
809 :	chl	619	/* no early skip for GMC (global vector = skip vector is unknown!) */
810 :			if (current->coding_type == P_VOP) { /* no fast SKIP for S(GMC)-VOPs */
811 :	syskin	704	if (pMB->dquant == NO_CHANGE && sad00 < pMB->quant * INITIAL_SKIP_THRESH * (Data.rrv ? 4:1) )
812 :			if (Data.chroma \|\| SkipDecisionP(pCurrent, pRef, x, y, pParam->edged_width, pMB->quant, Data.rrv)) {
813 :	chl	619	SkipMacroblockP(pMB, sad00);
814 :			continue;
815 :			}
816 :			}
817 :	syskin	628
818 :			SearchP(pRef, pRefH->y, pRefV->y, pRefHV->y, pCurrent, x,
819 :	chl	530	y, current->motion_flags, pMB->quant,
820 :	Isibaar	539	&Data, pParam, pMBs, reference->mbs,
821 :	chl	530	current->global_flags & XVID_INTER4V, pMB);
822 :	edgomez	195
823 :	chl	530	/* final skip decision, a.k.a. "the vector you found, really that good?" */
824 :	chl	619	if (current->coding_type == P_VOP) {
825 :			if ( (pMB->dquant == NO_CHANGE) && (sad00 < pMB->quant * MAX_SAD00_FOR_SKIP)
826 :	syskin	704	&& ((100pMB->sad16)/(sad00+1) > FINAL_SKIP_THRESH (Data.rrv ? 4:1)) )
827 :			if (Data.chroma \|\| SkipDecisionP(pCurrent, pRef, x, y, pParam->edged_width, pMB->quant, Data.rrv)) {
828 :	chl	619	SkipMacroblockP(pMB, sad00);
829 :			continue;
830 :			}
831 :			}
832 :	syskin	628
833 :	chl	530	/* finally, intra decision */
834 :	Isibaar	3
835 :	chl	530	InterBias = MV16_INTER_BIAS;
836 :	syskin	639	if (pMB->quant > 8) InterBias += 100 * (pMB->quant - 8); // to make high quants work
837 :	chl	530	if (y != 0)
838 :	syskin	639	if ((pMB - pParam->mb_width)->mode == MODE_INTRA ) InterBias -= 80;
839 :	chl	530	if (x != 0)
840 :	syskin	639	if ((pMB - 1)->mode == MODE_INTRA ) InterBias -= 80;
841 :	syskin	628
842 :			if (Data.chroma) InterBias += 50; // to compensate bigger SAD
843 :	syskin	704	if (Data.rrv) InterBias *= 4; //??
844 :	Isibaar	3
845 :	chl	530	if (InterBias < pMB->sad16) {
846 :	syskin	704	int32_t deviation;
847 :			if (Data.rrv) {
848 :			deviation = dev16(pCurrent->y + (x + y * pParam->edged_width) * 32,
849 :			pParam->edged_width)
850 :			+ dev16(pCurrent->y + (x + y * pParam->edged_width) * 32 + 16,
851 :			pParam->edged_width)
852 :			+ dev16(pCurrent->y + (x + y * pParam->edged_width) * 32 + 16 * pParam->edged_width,
853 :			pParam->edged_width)
854 :			+ dev16(pCurrent->y + (x + y * pParam->edged_width) * 32 + 16 * (pParam->edged_width+1),
855 :			pParam->edged_width);
856 :			} else
857 :			deviation = dev16(pCurrent->y + (x + y * pParam->edged_width) * 16,
858 :	chl	530	pParam->edged_width);
859 :	Isibaar	3
860 :	syskin	704	if (deviation < (pMB->sad16 - InterBias)) {
861 :	Isibaar	580	if (++iIntra >= iLimit) { free(qimage); return 1; }
862 :	chl	530	pMB->mode = MODE_INTRA;
863 :	Isibaar	539	pMB->mvs[0] = pMB->mvs[1] = pMB->mvs[2] =
864 :			pMB->mvs[3] = zeroMV;
865 :	Isibaar	580	pMB->qmvs[0] = pMB->qmvs[1] = pMB->qmvs[2] =
866 :			pMB->qmvs[3] = zeroMV;
867 :	chl	530	pMB->sad16 = pMB->sad8[0] = pMB->sad8[1] = pMB->sad8[2] =
868 :			pMB->sad8[3] = 0;
869 :			}
870 :			}
871 :			}
872 :	Isibaar	3	}
873 :	Isibaar	580	free(qimage);
874 :	chl	619
875 :			if (current->coding_type == S_VOP) /* first GMC step only for S(GMC)-VOPs */
876 :	syskin	628	current->GMC_MV = GlobalMotionEst( pMBs, pParam, current->fcode );
877 :	chl	619	else
878 :			current->GMC_MV = zeroMV;
879 :
880 :	syskin	628	return 0;
881 :	chl	530	}
882 :	Isibaar	3
883 :	edgomez	195
884 :	chl	530	#define PMV_HALFPEL16 (PMV_HALFPELDIAMOND16\|PMV_HALFPELREFINE16)
885 :	Isibaar	3
886 :	chl	530	static __inline int
887 :			make_mask(const VECTOR * const pmv, const int i)
888 :			{
889 :	Isibaar	539	int mask = 255, j;
890 :	chl	530	for (j = 0; j < i; j++) {
891 :			if (MVequal(pmv[i], pmv[j])) return 0; // same vector has been checked already
892 :			if (pmv[i].x == pmv[j].x) {
893 :			if (pmv[i].y == pmv[j].y + iDiamondSize) { mask &= ~4; continue; }
894 :			if (pmv[i].y == pmv[j].y - iDiamondSize) { mask &= ~8; continue; }
895 :			} else
896 :			if (pmv[i].y == pmv[j].y) {
897 :			if (pmv[i].x == pmv[j].x + iDiamondSize) { mask &= ~1; continue; }
898 :			if (pmv[i].x == pmv[j].x - iDiamondSize) { mask &= ~2; continue; }
899 :			}
900 :	Isibaar	3	}
901 :	chl	530	return mask;
902 :			}
903 :	edgomez	195
904 :	chl	530	static __inline void
905 :	syskin	704	PreparePredictionsP(VECTOR * const pmv, int x, int y, int iWcount,
906 :			int iHcount, const MACROBLOCK * const prevMB, int rrv)
907 :	chl	530	{
908 :	edgomez	195
909 :	chl	530	//this function depends on get_pmvdata which means that it sucks. It should get the predictions by itself
910 :	syskin	704	if (rrv) { iWcount /= 2; iHcount /= 2; }
911 :	edgomez	195
912 :	syskin	704	if ( (y != 0) && (x < (iWcount-1)) ) { // [5] top-right neighbour
913 :	chl	530	pmv[5].x = EVEN(pmv[3].x);
914 :	Isibaar	539	pmv[5].y = EVEN(pmv[3].y);
915 :			} else pmv[5].x = pmv[5].y = 0;
916 :	chl	169
917 :	chl	530	if (x != 0) { pmv[3].x = EVEN(pmv[1].x); pmv[3].y = EVEN(pmv[1].y); }// pmv[3] is left neighbour
918 :			else pmv[3].x = pmv[3].y = 0;
919 :	Isibaar	3
920 :	chl	530	if (y != 0) { pmv[4].x = EVEN(pmv[2].x); pmv[4].y = EVEN(pmv[2].y); }// [4] top neighbour
921 :			else pmv[4].x = pmv[4].y = 0;
922 :	chl	169
923 :	chl	530	// [1] median prediction
924 :	syskin	704	if (rrv) { //median is in halfzero-precision
925 :			pmv[1].x = RRV_MV_SCALEUP(pmv[0].x);
926 :			pmv[1].y = RRV_MV_SCALEUP(pmv[0].y);
927 :			} else { pmv[1].x = EVEN(pmv[0].x); pmv[1].y = EVEN(pmv[0].y); }
928 :	chl	169
929 :	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
930 :	chl	169
931 :	chl	530	pmv[2].x = EVEN(prevMB->mvs[0].x); // [2] is last frame
932 :			pmv[2].y = EVEN(prevMB->mvs[0].y);
933 :	chl	169
934 :	syskin	704	if ((x < iWcount-1) && (y < iHcount-1)) {
935 :	chl	530	pmv[6].x = EVEN((prevMB+1+iWcount)->mvs[0].x); //[6] right-down neighbour in last frame
936 :	Isibaar	539	pmv[6].y = EVEN((prevMB+1+iWcount)->mvs[0].y);
937 :			} else pmv[6].x = pmv[6].y = 0;
938 :	syskin	704
939 :			if (rrv) {
940 :			int i;
941 :			for (i = 0; i < 7; i++) {
942 :			pmv[i].x = RRV_MV_SCALEDOWN(pmv[i].x);
943 :			pmv[i].x = RRV_MV_SCALEUP(pmv[i].x); // a trick
944 :			}
945 :			}
946 :	chl	530	}
947 :	chl	169
948 :	chl	530	static void
949 :	syskin	628	SearchP(const IMAGE * const pRef,
950 :	chl	530	const uint8_t * const pRefH,
951 :			const uint8_t * const pRefV,
952 :			const uint8_t * const pRefHV,
953 :			const IMAGE * const pCur,
954 :			const int x,
955 :			const int y,
956 :			const uint32_t MotionFlags,
957 :			const uint32_t iQuant,
958 :	Isibaar	539	SearchData * const Data,
959 :	chl	530	const MBParam * const pParam,
960 :			const MACROBLOCK * const pMBs,
961 :			const MACROBLOCK * const prevMBs,
962 :			int inter4v,
963 :			MACROBLOCK * const pMB)
964 :			{
965 :	chl	169
966 :	chl	530	int i, iDirection = 255, mask, threshA;
967 :	Isibaar	539	VECTOR pmv[7];
968 :	Isibaar	3
969 :	syskin	712	get_range(&Data->min_dx, &Data->max_dx, &Data->min_dy, &Data->max_dy, x, y, 16,
970 :			pParam->width, pParam->height, Data->iFcode - Data->qpel, 0, Data->rrv);
971 :	Isibaar	3
972 :	syskin	712	get_pmvdata2(pMBs, pParam->mb_width, 0, x, y, 0, pmv, Data->temp); //has to be changed to get_pmv(2)()
973 :	syskin	628
974 :	syskin	712	Data->temp[5] = Data->temp[7] = 256*4096; // to reset chroma-sad cache
975 :	syskin	704	if (Data->rrv) i = 2; else i = 1;
976 :			Data->Cur = pCur->y + (x + y * Data->iEdgedWidth) * 16*i;
977 :			Data->CurV = pCur->v + (x + y * (Data->iEdgedWidth/2)) * 8*i;
978 :			Data->CurU = pCur->u + (x + y * (Data->iEdgedWidth/2)) * 8*i;
979 :	Isibaar	3
980 :	syskin	704	Data->Ref = pRef->y + (x + Data->iEdgedWidthy) 16*i;
981 :			Data->RefH = pRefH + (x + Data->iEdgedWidthy) 16*i;
982 :			Data->RefV = pRefV + (x + Data->iEdgedWidthy) 16*i;
983 :			Data->RefHV = pRefHV + (x + Data->iEdgedWidthy) 16*i;
984 :			Data->RefCV = pRef->v + (x + y * (Data->iEdgedWidth/2)) * 8*i;
985 :			Data->RefCU = pRef->u + (x + y * (Data->iEdgedWidth/2)) * 8*i;
986 :
987 :	syskin	601	Data->lambda16 = lambda_vec16[iQuant];
988 :	Isibaar	606	Data->lambda8 = lambda_vec8[iQuant];
989 :	syskin	663	Data->qpel_precision = 0;
990 :	chl	169
991 :	edgomez	568	if (pMB->dquant != NO_CHANGE) inter4v = 0;
992 :	edgomez	195
993 :	Isibaar	580	for(i = 0; i < 5; i++)
994 :			Data->currentMV[i].x = Data->currentMV[i].y = 0;
995 :	Isibaar	539
996 :	syskin	663	if (pParam->m_quarterpel) Data->predMV = get_qpmv2(pMBs, pParam->mb_width, 0, x, y, 0);
997 :			else Data->predMV = pmv[0];
998 :	Isibaar	606
999 :	syskin	712	i = d_mv_bits(Data->predMV.x, Data->predMV.y, Data->iFcode, 0, 0);
1000 :	syskin	628	Data->iMinSAD[0] = pMB->sad16 + (Data->lambda16 * i * pMB->sad16)/1000;
1001 :			Data->iMinSAD[1] = pMB->sad8[0] + (Data->lambda8 * i * (pMB->sad8[0]+NEIGH_8X8_BIAS))/100;
1002 :	Isibaar	539	Data->iMinSAD[2] = pMB->sad8[1];
1003 :			Data->iMinSAD[3] = pMB->sad8[2];
1004 :			Data->iMinSAD[4] = pMB->sad8[3];
1005 :
1006 :	chl	530	if ((x == 0) && (y == 0)) threshA = 512;
1007 :			else {
1008 :	edgomez	568	threshA = Data->temp[0]; // that's when we keep this SAD atm
1009 :	chl	530	if (threshA < 512) threshA = 512;
1010 :			if (threshA > 1024) threshA = 1024; }
1011 :	Isibaar	3
1012 :	chl	530	PreparePredictionsP(pmv, x, y, pParam->mb_width, pParam->mb_height,
1013 :	syskin	704	prevMBs + x + y * pParam->mb_width, Data->rrv);
1014 :	edgomez	195
1015 :	syskin	704	if (Data->rrv) CheckCandidate = CheckCandidate32;
1016 :			else if (inter4v \|\| Data->chroma) CheckCandidate = CheckCandidate16;
1017 :			else CheckCandidate = CheckCandidate16no4v; //for extra speed
1018 :	edgomez	568
1019 :	chl	530	/* main loop. checking all predictions */
1020 :
1021 :			for (i = 1; i < 7; i++) {
1022 :			if (!(mask = make_mask(pmv, i)) ) continue;
1023 :	edgomez	568	(*CheckCandidate)(pmv[i].x, pmv[i].y, mask, &iDirection, Data);
1024 :	Isibaar	539	if (Data->iMinSAD[0] <= threshA) break;
1025 :	chl	530	}
1026 :
1027 :	Isibaar	539	if ((Data->iMinSAD[0] <= threshA) \|\|
1028 :			(MVequal(Data->currentMV[0], (prevMBs+x+y*pParam->mb_width)->mvs[0]) &&
1029 :			(Data->iMinSAD[0] < (prevMBs+x+y*pParam->mb_width)->sad16))) {
1030 :	chl	530	inter4v = 0;
1031 :	Isibaar	539	} else {
1032 :	Isibaar	3
1033 :	syskin	712	MainSearchFunc * MainSearchPtr;
1034 :	Isibaar	539	if (MotionFlags & PMV_USESQUARES16) MainSearchPtr = SquareSearch;
1035 :			else if (MotionFlags & PMV_ADVANCEDDIAMOND16) MainSearchPtr = AdvDiamondSearch;
1036 :			else MainSearchPtr = DiamondSearch;
1037 :	chl	181
1038 :	Isibaar	539	(*MainSearchPtr)(Data->currentMV->x, Data->currentMV->y, Data, iDirection);
1039 :	Isibaar	3
1040 :	chl	530	/* extended search, diamond starting in 0,0 and in prediction.
1041 :			note that this search is/might be done in halfpel positions,
1042 :			which makes it more different than the diamond above */
1043 :	chl	259
1044 :	Isibaar	539	if (MotionFlags & PMV_EXTSEARCH16) {
1045 :			int32_t bSAD;
1046 :			VECTOR startMV = Data->predMV, backupMV = Data->currentMV[0];
1047 :	syskin	704	if (Data->rrv) {
1048 :			startMV.x = RRV_MV_SCALEUP(startMV.x);
1049 :			startMV.y = RRV_MV_SCALEUP(startMV.y);
1050 :			} else
1051 :			if (!(MotionFlags & PMV_HALFPELREFINE16)) // who's gonna use extsearch and no halfpel?
1052 :			startMV.x = EVEN(startMV.x); startMV.y = EVEN(startMV.y);
1053 :	Isibaar	539	if (!(MVequal(startMV, backupMV))) {
1054 :			bSAD = Data->iMinSAD[0]; Data->iMinSAD[0] = MV_MAX_ERROR;
1055 :	Isibaar	3
1056 :	Isibaar	606	(*CheckCandidate)(startMV.x, startMV.y, 255, &iDirection, Data);
1057 :	Isibaar	539	(*MainSearchPtr)(startMV.x, startMV.y, Data, 255);
1058 :			if (bSAD < Data->iMinSAD[0]) {
1059 :			Data->currentMV[0] = backupMV;
1060 :			Data->iMinSAD[0] = bSAD; }
1061 :			}
1062 :	Isibaar	3
1063 :	Isibaar	539	backupMV = Data->currentMV[0];
1064 :	syskin	704	if (!MotionFlags & PMV_HALFPELREFINE16 \|\| Data->rrv) startMV.x = startMV.y = 0;
1065 :			else startMV.x = startMV.y = 1;
1066 :	Isibaar	539	if (!(MVequal(startMV, backupMV))) {
1067 :			bSAD = Data->iMinSAD[0]; Data->iMinSAD[0] = MV_MAX_ERROR;
1068 :	edgomez	195
1069 :	Isibaar	606	(*CheckCandidate)(startMV.x, startMV.y, 255, &iDirection, Data);
1070 :	Isibaar	539	(*MainSearchPtr)(startMV.x, startMV.y, Data, 255);
1071 :			if (bSAD < Data->iMinSAD[0]) {
1072 :			Data->currentMV[0] = backupMV;
1073 :			Data->iMinSAD[0] = bSAD; }
1074 :			}
1075 :	Isibaar	3	}
1076 :			}
1077 :
1078 :	syskin	663	if (MotionFlags & PMV_HALFPELREFINE16) SubpelRefine(Data);
1079 :	Isibaar	3
1080 :	Isibaar	580	for(i = 0; i < 5; i++) {
1081 :			Data->currentQMV[i].x = 2 * Data->currentMV[i].x; // initialize qpel vectors
1082 :			Data->currentQMV[i].y = 2 * Data->currentMV[i].y;
1083 :			}
1084 :
1085 :	syskin	704	if((!Data->rrv) && (pParam->m_quarterpel) && (MotionFlags & PMV_QUARTERPELREFINE16)) {
1086 :	Isibaar	580
1087 :	syskin	663	Data->qpel_precision = 1;
1088 :	syskin	712	get_range(&Data->min_dx, &Data->max_dx, &Data->min_dy, &Data->max_dy, x, y, 16,
1089 :			pParam->width, pParam->height, Data->iFcode, 1, 0);
1090 :	syskin	601
1091 :	syskin	663	SubpelRefine(Data);
1092 :	Isibaar	580	}
1093 :
1094 :	syskin	628	if (Data->iMinSAD[0] < (int32_t)iQuant * 30 ) inter4v = 0;
1095 :	Isibaar	539	if (inter4v) {
1096 :			SearchData Data8;
1097 :			Data8.iFcode = Data->iFcode;
1098 :	Isibaar	606	Data8.lambda8 = Data->lambda8;
1099 :	Isibaar	539	Data8.iEdgedWidth = Data->iEdgedWidth;
1100 :	Isibaar	606	Data8.RefQ = Data->RefQ;
1101 :	syskin	628	Data8.qpel = Data->qpel;
1102 :	syskin	704	Data8.rrv = Data->rrv;
1103 :	Isibaar	539	Search8(Data, 2x, 2y, MotionFlags, pParam, pMB, pMBs, 0, &Data8);
1104 :			Search8(Data, 2x + 1, 2y, MotionFlags, pParam, pMB, pMBs, 1, &Data8);
1105 :			Search8(Data, 2x, 2y + 1, MotionFlags, pParam, pMB, pMBs, 2, &Data8);
1106 :			Search8(Data, 2x + 1, 2y + 1, MotionFlags, pParam, pMB, pMBs, 3, &Data8);
1107 :	syskin	628
1108 :			if (Data->chroma) {
1109 :	syskin	663	int sumx, sumy, dx, dy;
1110 :	syskin	628
1111 :			if(pParam->m_quarterpel) {
1112 :	syskin	663	sumx= pMB->qmvs[0].x/2 + pMB->qmvs[1].x/2 + pMB->qmvs[2].x/2 + pMB->qmvs[3].x/2;
1113 :			sumy = pMB->qmvs[0].y/2 + pMB->qmvs[1].y/2 + pMB->qmvs[2].y/2 + pMB->qmvs[3].y/2;
1114 :			} else {
1115 :			sumx = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x;
1116 :			sumy = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y;
1117 :			}
1118 :			dx = (sumx >> 3) + roundtab_76[sumx & 0xf];
1119 :			dy = (sumy >> 3) + roundtab_76[sumy & 0xf];
1120 :	syskin	628
1121 :			Data->iMinSAD[1] += ChromaSAD(dx, dy, Data);
1122 :			}
1123 :	Isibaar	539	}
1124 :	Isibaar	3
1125 :	syskin	704	if (Data->rrv) {
1126 :			Data->currentMV[0].x = RRV_MV_SCALEDOWN(Data->currentMV[0].x);
1127 :			Data->currentMV[0].y = RRV_MV_SCALEDOWN(Data->currentMV[0].y);
1128 :			}
1129 :	chl	530	if (!(inter4v) \|\|
1130 :	Isibaar	539	(Data->iMinSAD[0] < Data->iMinSAD[1] + Data->iMinSAD[2] +
1131 :			Data->iMinSAD[3] + Data->iMinSAD[4] + IMV16X16 * (int32_t)iQuant )) {
1132 :	chl	530	// INTER MODE
1133 :			pMB->mode = MODE_INTER;
1134 :	Isibaar	539	pMB->mvs[0] = pMB->mvs[1]
1135 :			= pMB->mvs[2] = pMB->mvs[3] = Data->currentMV[0];
1136 :	Isibaar	3
1137 :	chl	530	pMB->sad16 = pMB->sad8[0] = pMB->sad8[1] =
1138 :	Isibaar	539	pMB->sad8[2] = pMB->sad8[3] = Data->iMinSAD[0];
1139 :	Isibaar	3
1140 :	Isibaar	580	if(pParam->m_quarterpel) {
1141 :	syskin	663	pMB->qmvs[0] = pMB->qmvs[1]
1142 :			= pMB->qmvs[2] = pMB->qmvs[3] = Data->currentQMV[0];
1143 :			pMB->pmvs[0].x = Data->currentQMV[0].x - Data->predMV.x;
1144 :			pMB->pmvs[0].y = Data->currentQMV[0].y - Data->predMV.y;
1145 :	syskin	628	} else {
1146 :	Isibaar	580	pMB->pmvs[0].x = Data->currentMV[0].x - Data->predMV.x;
1147 :			pMB->pmvs[0].y = Data->currentMV[0].y - Data->predMV.y;
1148 :			}
1149 :	edgomez	195	} else {
1150 :	chl	530	// INTER4V MODE; all other things are already set in Search8
1151 :			pMB->mode = MODE_INTER4V;
1152 :	Isibaar	539	pMB->sad16 = Data->iMinSAD[1] + Data->iMinSAD[2] +
1153 :			Data->iMinSAD[3] + Data->iMinSAD[4] + IMV16X16 * iQuant;
1154 :	edgomez	78	}
1155 :	Isibaar	3	}
1156 :
1157 :	chl	530	static void
1158 :			Search8(const SearchData * const OldData,
1159 :			const int x, const int y,
1160 :			const uint32_t MotionFlags,
1161 :			const MBParam * const pParam,
1162 :			MACROBLOCK * const pMB,
1163 :			const MACROBLOCK * const pMBs,
1164 :	Isibaar	539	const int block,
1165 :			SearchData * const Data)
1166 :	chl	345	{
1167 :	syskin	704	int i = 0;
1168 :	Isibaar	539	Data->iMinSAD = OldData->iMinSAD + 1 + block;
1169 :			Data->currentMV = OldData->currentMV + 1 + block;
1170 :	Isibaar	580	Data->currentQMV = OldData->currentQMV + 1 + block;
1171 :	chl	345
1172 :	syskin	601	if(pParam->m_quarterpel) {
1173 :	syskin	704	Data->predMV = get_qpmv2(pMBs, pParam->mb_width, 0, x/2, y/2, block);
1174 :			if (block != 0) i = d_mv_bits( Data->currentQMV->x - Data->predMV.x,
1175 :	syskin	712	Data->currentQMV->y - Data->predMV.y, Data->iFcode, 0, 0);
1176 :
1177 :	Isibaar	606	} else {
1178 :	syskin	704	Data->predMV = get_pmv2(pMBs, pParam->mb_width, 0, x/2, y/2, block);
1179 :			if (block != 0) {
1180 :	syskin	712	if (block != 0) i = d_mv_bits( Data->currentMV->x - Data->predMV.x,
1181 :			Data->currentMV->y - Data->predMV.y, Data->iFcode, 0, Data->rrv);
1182 :	syskin	704	}
1183 :	Isibaar	606	}
1184 :	chl	345
1185 :	syskin	704	(Data->iMinSAD) += (Data->lambda8 i * (*Data->iMinSAD + NEIGH_8X8_BIAS))/100;
1186 :
1187 :	chl	530	if (MotionFlags & (PMV_EXTSEARCH8\|PMV_HALFPELREFINE8)) {
1188 :	syskin	704	if (Data->rrv) i = 2; else i = 1;
1189 :	chl	345
1190 :	syskin	704	Data->Ref = OldData->Ref + i8 ((block&1) + pParam->edged_width*(block>>1));
1191 :			Data->RefH = OldData->RefH + i8 ((block&1) + pParam->edged_width*(block>>1));
1192 :			Data->RefV = OldData->RefV + i8 ((block&1) + pParam->edged_width*(block>>1));
1193 :			Data->RefHV = OldData->RefHV + i8 ((block&1) + pParam->edged_width*(block>>1));
1194 :	chl	345
1195 :	syskin	704	Data->Cur = OldData->Cur + i8 ((block&1) + pParam->edged_width*(block>>1));
1196 :	syskin	663	Data->qpel_precision = 0;
1197 :	chl	345
1198 :	syskin	712	get_range(&Data->min_dx, &Data->max_dx, &Data->min_dy, &Data->max_dy, x, y, 8,
1199 :			pParam->width, pParam->height, OldData->iFcode - Data->qpel, 0, Data->rrv);
1200 :
1201 :			if (Data->rrv) CheckCandidate = CheckCandidate16no4v;
1202 :			else CheckCandidate = CheckCandidate8;
1203 :
1204 :	chl	530	if (MotionFlags & PMV_EXTSEARCH8) {
1205 :	Isibaar	580	int32_t temp_sad = *(Data->iMinSAD); // store current MinSAD
1206 :
1207 :	chl	530	MainSearchFunc *MainSearchPtr;
1208 :			if (MotionFlags & PMV_USESQUARES8) MainSearchPtr = SquareSearch;
1209 :			else if (MotionFlags & PMV_ADVANCEDDIAMOND8) MainSearchPtr = AdvDiamondSearch;
1210 :			else MainSearchPtr = DiamondSearch;
1211 :	chl	345
1212 :	Isibaar	580	(*MainSearchPtr)(Data->currentMV->x, Data->currentMV->y, Data, 255);
1213 :	chl	345
1214 :	syskin	601	if(*(Data->iMinSAD) < temp_sad) {
1215 :	Isibaar	580	Data->currentQMV->x = 2 * Data->currentMV->x; // update our qpel vector
1216 :			Data->currentQMV->y = 2 * Data->currentMV->y;
1217 :			}
1218 :			}
1219 :
1220 :			if (MotionFlags & PMV_HALFPELREFINE8) {
1221 :			int32_t temp_sad = *(Data->iMinSAD); // store current MinSAD
1222 :
1223 :	syskin	663	SubpelRefine(Data); // perform halfpel refine of current best vector
1224 :	Isibaar	580
1225 :			if(*(Data->iMinSAD) < temp_sad) { // we have found a better match
1226 :			Data->currentQMV->x = 2 * Data->currentMV->x; // update our qpel vector
1227 :			Data->currentQMV->y = 2 * Data->currentMV->y;
1228 :			}
1229 :			}
1230 :
1231 :	syskin	712	if(!Data->rrv && Data->qpel) {
1232 :	syskin	601	if((!(Data->currentQMV->x & 1)) && (!(Data->currentQMV->y & 1)) &&
1233 :			(MotionFlags & PMV_QUARTERPELREFINE8)) {
1234 :	syskin	663	Data->qpel_precision = 1;
1235 :	syskin	712	get_range(&Data->min_dx, &Data->max_dx, &Data->min_dy, &Data->max_dy, x, y, 8,
1236 :			pParam->width, pParam->height, OldData->iFcode, 1, 0);
1237 :	syskin	663	SubpelRefine(Data);
1238 :	syskin	601	}
1239 :	Isibaar	580	}
1240 :	chl	345	}
1241 :	chl	530
1242 :	syskin	704	if (Data->rrv) {
1243 :			Data->currentMV->x = RRV_MV_SCALEDOWN(Data->currentMV->x);
1244 :			Data->currentMV->y = RRV_MV_SCALEDOWN(Data->currentMV->y);
1245 :			}
1246 :
1247 :	syskin	712	if(Data->qpel) {
1248 :	syskin	663	pMB->pmvs[block].x = Data->currentQMV->x - Data->predMV.x;
1249 :			pMB->pmvs[block].y = Data->currentQMV->y - Data->predMV.y;
1250 :			pMB->qmvs[block] = *(Data->currentQMV);
1251 :	syskin	704	} else {
1252 :	Isibaar	580	pMB->pmvs[block].x = Data->currentMV->x - Data->predMV.x;
1253 :			pMB->pmvs[block].y = Data->currentMV->y - Data->predMV.y;
1254 :			}
1255 :
1256 :	Isibaar	539	pMB->mvs[block] = *(Data->currentMV);
1257 :	syskin	601	pMB->sad8[block] = 4 * (*Data->iMinSAD);
1258 :	chl	345	}
1259 :
1260 :	chl	530	/* B-frames code starts here */
1261 :	chl	345
1262 :	chl	530	static __inline VECTOR
1263 :			ChoosePred(const MACROBLOCK * const pMB, const uint32_t mode)
1264 :	Isibaar	3	{
1265 :	chl	530	/* the stupidiest function ever */
1266 :			if (mode == MODE_FORWARD) return pMB->mvs[0];
1267 :			else return pMB->b_mvs[0];
1268 :	Isibaar	3	}
1269 :
1270 :	chl	530	static void __inline
1271 :			PreparePredictionsBF(VECTOR * const pmv, const int x, const int y,
1272 :			const uint32_t iWcount,
1273 :			const MACROBLOCK * const pMB,
1274 :			const uint32_t mode_curr)
1275 :	Isibaar	3	{
1276 :
1277 :	chl	530	// [0] is prediction
1278 :			pmv[0].x = EVEN(pmv[0].x); pmv[0].y = EVEN(pmv[0].y);
1279 :	Isibaar	3
1280 :	chl	530	pmv[1].x = pmv[1].y = 0; // [1] is zero
1281 :	Isibaar	3
1282 :	chl	530	pmv[2] = ChoosePred(pMB, mode_curr);
1283 :			pmv[2].x = EVEN(pmv[2].x); pmv[2].y = EVEN(pmv[2].y);
1284 :	edgomez	195
1285 :	chl	530	if ((y != 0)&&(x != (int)(iWcount+1))) { // [3] top-right neighbour
1286 :			pmv[3] = ChoosePred(pMB+1-iWcount, mode_curr);
1287 :	Isibaar	539	pmv[3].x = EVEN(pmv[3].x); pmv[3].y = EVEN(pmv[3].y);
1288 :			} else pmv[3].x = pmv[3].y = 0;
1289 :	Isibaar	3
1290 :	chl	530	if (y != 0) {
1291 :			pmv[4] = ChoosePred(pMB-iWcount, mode_curr);
1292 :			pmv[4].x = EVEN(pmv[4].x); pmv[4].y = EVEN(pmv[4].y);
1293 :			} else pmv[4].x = pmv[4].y = 0;
1294 :	Isibaar	3
1295 :	chl	530	if (x != 0) {
1296 :			pmv[5] = ChoosePred(pMB-1, mode_curr);
1297 :			pmv[5].x = EVEN(pmv[5].x); pmv[5].y = EVEN(pmv[5].y);
1298 :			} else pmv[5].x = pmv[5].y = 0;
1299 :	Isibaar	3
1300 :	chl	530	if ((x != 0)&&(y != 0)) {
1301 :			pmv[6] = ChoosePred(pMB-1-iWcount, mode_curr);
1302 :			pmv[6].x = EVEN(pmv[5].x); pmv[5].y = EVEN(pmv[5].y);
1303 :			} else pmv[6].x = pmv[6].y = 0;
1304 :	edgomez	195
1305 :	chl	530	// more?
1306 :			}
1307 :	chl	181
1308 :	edgomez	170
1309 :	chl	530	/* search backward or forward, for b-frames */
1310 :			static void
1311 :			SearchBF( const uint8_t * const pRef,
1312 :			const uint8_t * const pRefH,
1313 :			const uint8_t * const pRefV,
1314 :			const uint8_t * const pRefHV,
1315 :			const IMAGE * const pCur,
1316 :			const int x, const int y,
1317 :			const uint32_t MotionFlags,
1318 :			const uint32_t iFcode,
1319 :			const MBParam * const pParam,
1320 :			MACROBLOCK * const pMB,
1321 :			const VECTOR * const predMV,
1322 :			int32_t * const best_sad,
1323 :	h	545	const int32_t mode_current,
1324 :			SearchData * const Data)
1325 :	chl	530	{
1326 :	Isibaar	3
1327 :	chl	530	const int32_t iEdgedWidth = pParam->edged_width;
1328 :
1329 :			int i, iDirection, mask;
1330 :	h	545	VECTOR pmv[7];
1331 :	chl	530	MainSearchFunc *MainSearchPtr;
1332 :	h	545	*Data->iMinSAD = MV_MAX_ERROR;
1333 :			Data->iFcode = iFcode;
1334 :	syskin	663	Data->qpel_precision = 0;
1335 :	Isibaar	3
1336 :	h	545	Data->Ref = pRef + (x + y * iEdgedWidth) * 16;
1337 :			Data->RefH = pRefH + (x + y * iEdgedWidth) * 16;
1338 :			Data->RefV = pRefV + (x + y * iEdgedWidth) * 16;
1339 :			Data->RefHV = pRefHV + (x + y * iEdgedWidth) * 16;
1340 :	Isibaar	3
1341 :	h	545	Data->predMV = *predMV;
1342 :	edgomez	195
1343 :	h	545	get_range(&Data->min_dx, &Data->max_dx, &Data->min_dy, &Data->max_dy, x, y, 16,
1344 :	syskin	712	pParam->width, pParam->height, iFcode - Data->qpel, 0, 0);
1345 :	Isibaar	3
1346 :	h	545	pmv[0] = Data->predMV;
1347 :	syskin	658	if (Data->qpel) { pmv[0].x /= 2; pmv[0].y /= 2; }
1348 :	h	545	PreparePredictionsBF(pmv, x, y, pParam->mb_width, pMB, mode_current);
1349 :	edgomez	195
1350 :	h	545	Data->currentMV->x = Data->currentMV->y = 0;
1351 :	chl	530	CheckCandidate = CheckCandidate16no4v;
1352 :	chl	181
1353 :	chl	530	// main loop. checking all predictions
1354 :			for (i = 0; i < 8; i++) {
1355 :			if (!(mask = make_mask(pmv, i)) ) continue;
1356 :	h	545	CheckCandidate16no4v(pmv[i].x, pmv[i].y, mask, &iDirection, Data);
1357 :	edgomez	78	}
1358 :	Isibaar	3
1359 :	chl	530	if (MotionFlags & PMV_USESQUARES16)
1360 :			MainSearchPtr = SquareSearch;
1361 :			else if (MotionFlags & PMV_ADVANCEDDIAMOND16)
1362 :			MainSearchPtr = AdvDiamondSearch;
1363 :			else MainSearchPtr = DiamondSearch;
1364 :	chl	96
1365 :	h	545	(*MainSearchPtr)(Data->currentMV->x, Data->currentMV->y, Data, 255);
1366 :	chl	169
1367 :	syskin	663	SubpelRefine(Data);
1368 :	syskin	658
1369 :			if (Data->qpel) {
1370 :			Data->currentQMV->x = 2*Data->currentMV->x;
1371 :			Data->currentQMV->y = 2*Data->currentMV->y;
1372 :	syskin	663	Data->qpel_precision = 1;
1373 :	syskin	712	get_range(&Data->min_dx, &Data->max_dx, &Data->min_dy, &Data->max_dy, x, y, 16,
1374 :			pParam->width, pParam->height, iFcode, 1, 0);
1375 :	syskin	663	SubpelRefine(Data);
1376 :	syskin	658	}
1377 :	chl	169
1378 :	chl	530	// three bits are needed to code backward mode. four for forward
1379 :			// we treat the bits just like they were vector's
1380 :	syskin	628	if (mode_current == MODE_FORWARD) Data->iMinSAD += 4 Data->lambda16;
1381 :			else Data->iMinSAD += 3 Data->lambda16;
1382 :	chl	169
1383 :	h	545	if (Data->iMinSAD < best_sad) {
1384 :			best_sad = Data->iMinSAD;
1385 :	chl	530	pMB->mode = mode_current;
1386 :	syskin	658	if (Data->qpel) {
1387 :			pMB->pmvs[0].x = Data->currentQMV->x - predMV->x;
1388 :			pMB->pmvs[0].y = Data->currentQMV->y - predMV->y;
1389 :			if (mode_current == MODE_FORWARD)
1390 :			pMB->qmvs[0] = *Data->currentQMV;
1391 :			else
1392 :			pMB->b_qmvs[0] = *Data->currentQMV;
1393 :			} else {
1394 :			pMB->pmvs[0].x = Data->currentMV->x - predMV->x;
1395 :			pMB->pmvs[0].y = Data->currentMV->y - predMV->y;
1396 :			}
1397 :			if (mode_current == MODE_FORWARD)
1398 :			pMB->mvs[0] = (Data->currentMV+2) = Data->currentMV;
1399 :			else
1400 :			pMB->b_mvs[0] = (Data->currentMV+1) = Data->currentMV; //we store currmv for interpolate search
1401 :
1402 :	chl	169	}
1403 :	chl	530
1404 :			}
1405 :	chl	169
1406 :	syskin	712	static void
1407 :			SkipDecisionB(const IMAGE * const pCur,
1408 :			const IMAGE * const f_Ref,
1409 :			const IMAGE * const b_Ref,
1410 :			MACROBLOCK * const pMB,
1411 :			const uint32_t quant,
1412 :			const uint32_t x, const uint32_t y,
1413 :			const SearchData * const Data)
1414 :			{
1415 :			int dx, dy, b_dx, b_dy;
1416 :			uint32_t sum;
1417 :			//this is not full chroma compensation, only it's fullpel approximation. should work though
1418 :			if (Data->qpel) {
1419 :			dy = Data->directmvF[0].y/2 + Data->directmvF[1].y/2 +
1420 :			Data->directmvF[2].y/2 + Data->directmvF[3].y/2;
1421 :
1422 :			dx = Data->directmvF[0].x/2 + Data->directmvF[1].x/2 +
1423 :			Data->directmvF[2].x/2 + Data->directmvF[3].x/2;
1424 :
1425 :			b_dy = Data->directmvB[0].y/2 + Data->directmvB[1].y/2 +
1426 :			Data->directmvB[2].y/2 + Data->directmvB[3].y/2;
1427 :
1428 :			b_dx = Data->directmvB[0].x/2 + Data->directmvB[1].x/2 +
1429 :			Data->directmvB[2].x/2 + Data->directmvB[3].x/2;
1430 :
1431 :			} else {
1432 :			dy = Data->directmvF[0].y + Data->directmvF[1].y +
1433 :			Data->directmvF[2].y + Data->directmvF[3].y;
1434 :
1435 :			dx = Data->directmvF[0].x + Data->directmvF[1].x +
1436 :			Data->directmvF[2].x + Data->directmvF[3].x;
1437 :
1438 :			b_dy = Data->directmvB[0].y + Data->directmvB[1].y +
1439 :			Data->directmvB[2].y + Data->directmvB[3].y;
1440 :
1441 :			b_dx = Data->directmvB[0].x + Data->directmvB[1].x +
1442 :			Data->directmvB[2].x + Data->directmvB[3].x;
1443 :			}
1444 :
1445 :
1446 :			dy = (dy >> 3) + roundtab_76[dy & 0xf];
1447 :			dx = (dx >> 3) + roundtab_76[dx & 0xf];
1448 :			b_dy = (b_dy >> 3) + roundtab_76[b_dy & 0xf];
1449 :			b_dx = (b_dx >> 3) + roundtab_76[b_dx & 0xf];
1450 :
1451 :			sum = sad8bi(pCur->u + 8x + 8y*(Data->iEdgedWidth/2),
1452 :			f_Ref->u + (y8 + dy/2) (Data->iEdgedWidth/2) + x*8 + dx/2,
1453 :			b_Ref->u + (y8 + b_dy/2) (Data->iEdgedWidth/2) + x*8 + b_dx/2,
1454 :			Data->iEdgedWidth/2);
1455 :			sum += sad8bi(pCur->v + 8x + 8y*(Data->iEdgedWidth/2),
1456 :			f_Ref->v + (y8 + dy/2) (Data->iEdgedWidth/2) + x*8 + dx/2,
1457 :			b_Ref->v + (y8 + b_dy/2) (Data->iEdgedWidth/2) + x*8 + b_dx/2,
1458 :			Data->iEdgedWidth/2);
1459 :
1460 :			if (sum < 2MAX_CHROMA_SAD_FOR_SKIP quant) pMB->mode = MODE_DIRECT_NONE_MV; //skipped
1461 :			}
1462 :
1463 :
1464 :
1465 :			static __inline uint32_t
1466 :	Isibaar	539	SearchDirect(const IMAGE * const f_Ref,
1467 :	chl	530	const uint8_t * const f_RefH,
1468 :			const uint8_t * const f_RefV,
1469 :			const uint8_t * const f_RefHV,
1470 :	Isibaar	539	const IMAGE * const b_Ref,
1471 :	chl	530	const uint8_t * const b_RefH,
1472 :			const uint8_t * const b_RefV,
1473 :			const uint8_t * const b_RefHV,
1474 :			const IMAGE * const pCur,
1475 :			const int x, const int y,
1476 :			const uint32_t MotionFlags,
1477 :			const int32_t TRB, const int32_t TRD,
1478 :			const MBParam * const pParam,
1479 :			MACROBLOCK * const pMB,
1480 :			const MACROBLOCK * const b_mb,
1481 :	h	545	int32_t * const best_sad,
1482 :			SearchData * const Data)
1483 :	edgomez	195
1484 :	chl	530	{
1485 :	h	545	int32_t skip_sad;
1486 :	chl	530	int k;
1487 :	h	545
1488 :	chl	530	MainSearchFunc *MainSearchPtr;
1489 :	Isibaar	3
1490 :	h	545	Data->iMinSAD = 2564096;
1491 :	chl	140
1492 :	h	545	Data->Ref = f_Ref->y + (x + Data->iEdgedWidthy) 16;
1493 :			Data->RefH = f_RefH + (x + Data->iEdgedWidthy) 16;
1494 :			Data->RefV = f_RefV + (x + Data->iEdgedWidthy) 16;
1495 :			Data->RefHV = f_RefHV + (x + Data->iEdgedWidthy) 16;
1496 :			Data->bRef = b_Ref->y + (x + Data->iEdgedWidthy) 16;
1497 :			Data->bRefH = b_RefH + (x + Data->iEdgedWidthy) 16;
1498 :			Data->bRefV = b_RefV + (x + Data->iEdgedWidthy) 16;
1499 :			Data->bRefHV = b_RefHV + (x + Data->iEdgedWidthy) 16;
1500 :	chl	140
1501 :	h	545	Data->max_dx = 2 * pParam->width - 2 * (x) * 16;
1502 :			Data->max_dy = 2 * pParam->height - 2 * (y) * 16;
1503 :			Data->min_dx = -(2 * 16 + 2 * (x) * 16);
1504 :			Data->min_dy = -(2 * 16 + 2 * (y) * 16);
1505 :	syskin	658	if (Data->qpel) { //we measure in qpixels
1506 :			Data->max_dx *= 2;
1507 :			Data->max_dy *= 2;
1508 :			Data->min_dx *= 2;
1509 :			Data->min_dy *= 2;
1510 :			Data->referencemv = b_mb->qmvs;
1511 :			} else Data->referencemv = b_mb->mvs;
1512 :	syskin	672	Data->qpel_precision = 0; // it's a trick. it's 1 not 0, but we need 0 here
1513 :	Isibaar	3
1514 :	chl	530	for (k = 0; k < 4; k++) {
1515 :	h	545	pMB->mvs[k].x = Data->directmvF[k].x = ((TRB * Data->referencemv[k].x) / TRD);
1516 :			pMB->b_mvs[k].x = Data->directmvB[k].x = ((TRB - TRD) * Data->referencemv[k].x) / TRD;
1517 :			pMB->mvs[k].y = Data->directmvF[k].y = ((TRB * Data->referencemv[k].y) / TRD);
1518 :			pMB->b_mvs[k].y = Data->directmvB[k].y = ((TRB - TRD) * Data->referencemv[k].y) / TRD;
1519 :	Isibaar	3
1520 :	h	545	if ( ( pMB->b_mvs[k].x > Data->max_dx ) \|\| ( pMB->b_mvs[k].x < Data->min_dx )
1521 :			\|\| ( pMB->b_mvs[k].y > Data->max_dy ) \|\| ( pMB->b_mvs[k].y < Data->min_dy )) {
1522 :	Isibaar	3
1523 :	Isibaar	539	best_sad = 2564096; // in that case, we won't use direct mode
1524 :			pMB->mode = MODE_DIRECT; // just to make sure it doesn't say "MODE_DIRECT_NONE_MV"
1525 :			pMB->b_mvs[0].x = pMB->b_mvs[0].y = 0;
1526 :	syskin	712	return 256*4096;
1527 :	Isibaar	539	}
1528 :			if (b_mb->mode != MODE_INTER4V) {
1529 :			pMB->mvs[1] = pMB->mvs[2] = pMB->mvs[3] = pMB->mvs[0];
1530 :			pMB->b_mvs[1] = pMB->b_mvs[2] = pMB->b_mvs[3] = pMB->b_mvs[0];
1531 :	h	545	Data->directmvF[1] = Data->directmvF[2] = Data->directmvF[3] = Data->directmvF[0];
1532 :			Data->directmvB[1] = Data->directmvB[2] = Data->directmvB[3] = Data->directmvB[0];
1533 :	Isibaar	539	break;
1534 :			}
1535 :			}
1536 :	Isibaar	3
1537 :	syskin	663
1538 :			if (b_mb->mode == MODE_INTER4V) CheckCandidate = CheckCandidateDirect;
1539 :			else CheckCandidate = CheckCandidateDirectno4v;
1540 :	syskin	658
1541 :	h	545	(*CheckCandidate)(0, 0, 255, &k, Data);
1542 :	Isibaar	3
1543 :	syskin	712	// initial (fast) skip decision
1544 :			if (Data->iMinSAD < pMB->quant INITIAL_SKIP_THRESH*2) {
1545 :			SkipDecisionB(pCur, f_Ref, b_Ref, pMB, x, y, Data->chroma, Data); //possible skip - checking chroma
1546 :			if (pMB->mode == MODE_DIRECT_NONE_MV) return *Data->iMinSAD; // skip.
1547 :	Isibaar	539	}
1548 :
1549 :	h	545	skip_sad = *Data->iMinSAD;
1550 :	edgomez	195
1551 :	chl	530	// DIRECT MODE DELTA VECTOR SEARCH.
1552 :			// This has to be made more effective, but at the moment I'm happy it's running at all
1553 :	Isibaar	3
1554 :	chl	530	if (MotionFlags & PMV_USESQUARES16) MainSearchPtr = SquareSearch;
1555 :			else if (MotionFlags & PMV_ADVANCEDDIAMOND16) MainSearchPtr = AdvDiamondSearch;
1556 :			else MainSearchPtr = DiamondSearch;
1557 :	edgomez	195
1558 :	h	545	(*MainSearchPtr)(0, 0, Data, 255);
1559 :	Isibaar	3
1560 :	syskin	663	SubpelRefine(Data);
1561 :	Isibaar	3
1562 :	h	545	best_sad = Data->iMinSAD;
1563 :	Isibaar	3
1564 :	syskin	672	if (b_mb->mode == MODE_INTER4V)
1565 :	chl	530	pMB->mode = MODE_DIRECT;
1566 :	syskin	672	else pMB->mode = MODE_DIRECT_NO4V; //for faster compensation
1567 :	edgomez	195
1568 :	h	545	pMB->pmvs[3] = *Data->currentMV;
1569 :	edgomez	195
1570 :	chl	530	for (k = 0; k < 4; k++) {
1571 :	h	545	pMB->mvs[k].x = Data->directmvF[k].x + Data->currentMV->x;
1572 :	syskin	658	pMB->b_mvs[k].x = ( (Data->currentMV->x == 0)
1573 :	h	545	? Data->directmvB[k].x
1574 :	syskin	658	:pMB->mvs[k].x - Data->referencemv[k].x);
1575 :	h	545	pMB->mvs[k].y = (Data->directmvF[k].y + Data->currentMV->y);
1576 :			pMB->b_mvs[k].y = ((Data->currentMV->y == 0)
1577 :			? Data->directmvB[k].y
1578 :			: pMB->mvs[k].y - Data->referencemv[k].y);
1579 :	syskin	658	if (Data->qpel) {
1580 :			pMB->qmvs[k].x = pMB->mvs[k].x; pMB->mvs[k].x /= 2;
1581 :			pMB->b_qmvs[k].x = pMB->b_mvs[k].x; pMB->b_mvs[k].x /= 2;
1582 :			pMB->qmvs[k].y = pMB->mvs[k].y; pMB->mvs[k].y /= 2;
1583 :			pMB->b_qmvs[k].y = pMB->b_mvs[k].y; pMB->b_mvs[k].y /= 2;
1584 :			}
1585 :
1586 :	chl	530	if (b_mb->mode != MODE_INTER4V) {
1587 :			pMB->mvs[3] = pMB->mvs[2] = pMB->mvs[1] = pMB->mvs[0];
1588 :			pMB->b_mvs[3] = pMB->b_mvs[2] = pMB->b_mvs[1] = pMB->b_mvs[0];
1589 :	syskin	658	pMB->qmvs[3] = pMB->qmvs[2] = pMB->qmvs[1] = pMB->qmvs[0];
1590 :			pMB->b_qmvs[3] = pMB->b_qmvs[2] = pMB->b_qmvs[1] = pMB->b_qmvs[0];
1591 :	chl	530	break;
1592 :			}
1593 :			}
1594 :	h	545	return skip_sad;
1595 :	Isibaar	3	}
1596 :	chl	96
1597 :	h	545
1598 :	syskin	712	static void
1599 :	chl	530	SearchInterpolate(const uint8_t * const f_Ref,
1600 :			const uint8_t * const f_RefH,
1601 :			const uint8_t * const f_RefV,
1602 :			const uint8_t * const f_RefHV,
1603 :			const uint8_t * const b_Ref,
1604 :			const uint8_t * const b_RefH,
1605 :			const uint8_t * const b_RefV,
1606 :			const uint8_t * const b_RefHV,
1607 :			const IMAGE * const pCur,
1608 :			const int x, const int y,
1609 :			const uint32_t fcode,
1610 :			const uint32_t bcode,
1611 :			const uint32_t MotionFlags,
1612 :			const MBParam * const pParam,
1613 :			const VECTOR * const f_predMV,
1614 :			const VECTOR * const b_predMV,
1615 :			MACROBLOCK * const pMB,
1616 :	h	545	int32_t * const best_sad,
1617 :			SearchData * const fData)
1618 :	chl	530
1619 :	chl	96	{
1620 :
1621 :	chl	530	int iDirection, i, j;
1622 :	h	545	SearchData bData;
1623 :	chl	96
1624 :	syskin	712	fData->qpel_precision = 0;
1625 :			memcpy(&bData, fData, sizeof(SearchData)); //quick copy of common data
1626 :			fData->iMinSAD = 4096256;
1627 :			bData.currentMV ++; bData.currentQMV ++;
1628 :	h	545	fData->iFcode = bData.bFcode = fcode; fData->bFcode = bData.iFcode = bcode;
1629 :	edgomez	195
1630 :	syskin	712	i = (x + y * fData->iEdgedWidth) * 16;
1631 :			bData.bRef = fData->Ref = f_Ref + i;
1632 :			bData.bRefH = fData->RefH = f_RefH + i;
1633 :			bData.bRefV = fData->RefV = f_RefV + i;
1634 :			bData.bRefHV = fData->RefHV = f_RefHV + i;
1635 :			bData.Ref = fData->bRef = b_Ref + i;
1636 :			bData.RefH = fData->bRefH = b_RefH + i;
1637 :			bData.RefV = fData->bRefV = b_RefV + i;
1638 :			bData.RefHV = fData->bRefHV = b_RefHV + i;
1639 :	chl	96
1640 :	h	545	bData.bpredMV = fData->predMV = *f_predMV;
1641 :			fData->bpredMV = bData.predMV = *b_predMV;
1642 :	syskin	661	fData->currentMV[0] = fData->currentMV[2];
1643 :	chl	96
1644 :	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);
1645 :			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);
1646 :
1647 :	h	545	if (fData->currentMV[0].x > fData->max_dx) fData->currentMV[0].x = fData->max_dx;
1648 :	syskin	675	if (fData->currentMV[0].x < fData->min_dx) fData->currentMV[0].x = fData->min_dx;
1649 :			if (fData->currentMV[0].y > fData->max_dy) fData->currentMV[0].y = fData->max_dy;
1650 :			if (fData->currentMV[0].y < fData->min_dy) fData->currentMV[0].y = fData->min_dy;
1651 :	Isibaar	539
1652 :	h	545	if (fData->currentMV[1].x > bData.max_dx) fData->currentMV[1].x = bData.max_dx;
1653 :	syskin	675	if (fData->currentMV[1].x < bData.min_dx) fData->currentMV[1].x = bData.min_dx;
1654 :			if (fData->currentMV[1].y > bData.max_dy) fData->currentMV[1].y = bData.max_dy;
1655 :			if (fData->currentMV[1].y < bData.min_dy) fData->currentMV[1].y = bData.min_dy;
1656 :	Isibaar	539
1657 :	h	545	CheckCandidateInt(fData->currentMV[0].x, fData->currentMV[0].y, 255, &iDirection, fData);
1658 :	chl	96
1659 :	chl	530	//diamond. I wish we could use normal mainsearch functions (square, advdiamond)
1660 :	chl	96
1661 :	chl	530	do {
1662 :			iDirection = 255;
1663 :			// forward MV moves
1664 :	h	545	i = fData->currentMV[0].x; j = fData->currentMV[0].y;
1665 :	chl	96
1666 :	h	545	CheckCandidateInt(i + 1, j, 0, &iDirection, fData);
1667 :			CheckCandidateInt(i, j + 1, 0, &iDirection, fData);
1668 :			CheckCandidateInt(i - 1, j, 0, &iDirection, fData);
1669 :			CheckCandidateInt(i, j - 1, 0, &iDirection, fData);
1670 :	chl	96
1671 :	chl	530	// backward MV moves
1672 :	h	545	i = fData->currentMV[1].x; j = fData->currentMV[1].y;
1673 :			fData->currentMV[2] = fData->currentMV[0];
1674 :	Isibaar	539	CheckCandidateInt(i + 1, j, 0, &iDirection, &bData);
1675 :			CheckCandidateInt(i, j + 1, 0, &iDirection, &bData);
1676 :			CheckCandidateInt(i - 1, j, 0, &iDirection, &bData);
1677 :			CheckCandidateInt(i, j - 1, 0, &iDirection, &bData);
1678 :	chl	96
1679 :	chl	530	} while (!(iDirection));
1680 :	edgomez	195
1681 :	syskin	658	if (fData->qpel) {
1682 :	syskin	675	CheckCandidate = CheckCandidateInt;
1683 :	syskin	663	fData->qpel_precision = bData.qpel_precision = 1;
1684 :	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);
1685 :			get_range(&bData.min_dx, &bData.max_dx, &bData.min_dy, &bData.max_dy, x, y, 16, pParam->width, pParam->height, bcode, 1, 0);
1686 :	syskin	658	fData->currentQMV[2].x = fData->currentQMV[0].x = 2 * fData->currentMV[0].x;
1687 :			fData->currentQMV[2].y = fData->currentQMV[0].y = 2 * fData->currentMV[0].y;
1688 :			fData->currentQMV[1].x = 2 * fData->currentMV[1].x;
1689 :			fData->currentQMV[1].y = 2 * fData->currentMV[1].y;
1690 :	syskin	663	SubpelRefine(fData);
1691 :	syskin	658	fData->currentQMV[2] = fData->currentQMV[0];
1692 :	syskin	663	SubpelRefine(&bData);
1693 :	syskin	658	}
1694 :	syskin	676
1695 :	syskin	712	fData->iMinSAD += (2+2) fData->lambda16; // two bits are needed to code interpolate mode.
1696 :	syskin	658
1697 :	h	545	if (fData->iMinSAD < best_sad) {
1698 :			best_sad = fData->iMinSAD;
1699 :			pMB->mvs[0] = fData->currentMV[0];
1700 :			pMB->b_mvs[0] = fData->currentMV[1];
1701 :	chl	530	pMB->mode = MODE_INTERPOLATE;
1702 :	syskin	658	if (fData->qpel) {
1703 :			pMB->qmvs[0] = fData->currentQMV[0];
1704 :			pMB->b_qmvs[0] = fData->currentQMV[1];
1705 :			pMB->pmvs[1].x = pMB->qmvs[0].x - f_predMV->x;
1706 :			pMB->pmvs[1].y = pMB->qmvs[0].y - f_predMV->y;
1707 :			pMB->pmvs[0].x = pMB->b_qmvs[0].x - b_predMV->x;
1708 :			pMB->pmvs[0].y = pMB->b_qmvs[0].y - b_predMV->y;
1709 :			} else {
1710 :			pMB->pmvs[1].x = pMB->mvs[0].x - f_predMV->x;
1711 :			pMB->pmvs[1].y = pMB->mvs[0].y - f_predMV->y;
1712 :			pMB->pmvs[0].x = pMB->b_mvs[0].x - b_predMV->x;
1713 :			pMB->pmvs[0].y = pMB->b_mvs[0].y - b_predMV->y;
1714 :			}
1715 :	chl	530	}
1716 :			}
1717 :	chl	96
1718 :	chl	530	void
1719 :			MotionEstimationBVOP(MBParam * const pParam,
1720 :			FRAMEINFO * const frame,
1721 :			const int32_t time_bp,
1722 :			const int32_t time_pp,
1723 :			// forward (past) reference
1724 :			const MACROBLOCK * const f_mbs,
1725 :			const IMAGE * const f_ref,
1726 :			const IMAGE * const f_refH,
1727 :			const IMAGE * const f_refV,
1728 :			const IMAGE * const f_refHV,
1729 :			// backward (future) reference
1730 :	syskin	644	const FRAMEINFO * const b_reference,
1731 :	chl	530	const IMAGE * const b_ref,
1732 :			const IMAGE * const b_refH,
1733 :			const IMAGE * const b_refV,
1734 :			const IMAGE * const b_refHV)
1735 :			{
1736 :			uint32_t i, j;
1737 :	syskin	712	int32_t best_sad;
1738 :			uint32_t skip_sad;
1739 :	chl	530	int f_count = 0, b_count = 0, i_count = 0, d_count = 0, n_count = 0;
1740 :			static const VECTOR zeroMV={0,0};
1741 :	syskin	644	const MACROBLOCK * const b_mbs = b_reference->mbs;
1742 :	chl	96
1743 :	chl	530	VECTOR f_predMV, b_predMV; /* there is no prediction for direct mode*/
1744 :	chl	96
1745 :	chl	530	const int32_t TRB = time_pp - time_bp;
1746 :			const int32_t TRD = time_pp;
1747 :	syskin	658	uint8_t * qimage;
1748 :	chl	96
1749 :	h	545	// some pre-inintialized data for the rest of the search
1750 :
1751 :			SearchData Data;
1752 :			int32_t iMinSAD;
1753 :			VECTOR currentMV[3];
1754 :	syskin	658	VECTOR currentQMV[3];
1755 :	syskin	704	memset(&Data, 0, sizeof(SearchData));
1756 :	h	545	Data.iEdgedWidth = pParam->edged_width;
1757 :	syskin	658	Data.currentMV = currentMV; Data.currentQMV = currentQMV;
1758 :	h	545	Data.iMinSAD = &iMinSAD;
1759 :	syskin	712	Data.lambda16 = lambda_vec16[frame->quant];
1760 :			Data.chroma = frame->quant;
1761 :	syskin	658	Data.qpel = pParam->m_quarterpel;
1762 :	syskin	663	Data.rounding = 0;
1763 :	h	545
1764 :	syskin	658	if((qimage = (uint8_t ) malloc(32 pParam->edged_width)) == NULL)
1765 :			return; // allocate some mem for qpel interpolated blocks
1766 :			// somehow this is dirty since I think we shouldn't use malloc outside
1767 :			// encoder_create() - so please fix me!
1768 :			Data.RefQ = qimage;
1769 :
1770 :	chl	530	// note: i==horizontal, j==vertical
1771 :			for (j = 0; j < pParam->mb_height; j++) {
1772 :	chl	96
1773 :	chl	530	f_predMV = b_predMV = zeroMV; /* prediction is reset at left boundary */
1774 :	edgomez	195
1775 :	chl	530	for (i = 0; i < pParam->mb_width; i++) {
1776 :			MACROBLOCK * const pMB = frame->mbs + i + j * pParam->mb_width;
1777 :			const MACROBLOCK * const b_mb = b_mbs + i + j * pParam->mb_width;
1778 :	edgomez	195
1779 :	chl	619	/* special case, if collocated block is SKIPed in P-VOP: encoding is forward (0,0), cpb=0 without further ado */
1780 :	syskin	644	if (b_reference->coding_type != S_VOP)
1781 :			if (b_mb->mode == MODE_NOT_CODED) {
1782 :			pMB->mode = MODE_NOT_CODED;
1783 :			continue;
1784 :			}
1785 :	chl	96
1786 :	h	545	Data.Cur = frame->image.y + (j * Data.iEdgedWidth + i) * 16;
1787 :	syskin	601	pMB->quant = frame->quant;
1788 :	syskin	628
1789 :	chl	530	/* direct search comes first, because it (1) checks for SKIP-mode
1790 :			and (2) sets very good predictions for forward and backward search */
1791 :	Isibaar	539	skip_sad = SearchDirect(f_ref, f_refH->y, f_refV->y, f_refHV->y,
1792 :			b_ref, b_refH->y, b_refV->y, b_refHV->y,
1793 :	chl	530	&frame->image,
1794 :			i, j,
1795 :			frame->motion_flags,
1796 :			TRB, TRD,
1797 :			pParam,
1798 :			pMB, b_mb,
1799 :	h	545	&best_sad,
1800 :			&Data);
1801 :	chl	96
1802 :	Isibaar	539	if (pMB->mode == MODE_DIRECT_NONE_MV) { n_count++; continue; }
1803 :	syskin	658
1804 :	chl	530	// forward search
1805 :			SearchBF(f_ref->y, f_refH->y, f_refV->y, f_refHV->y,
1806 :			&frame->image, i, j,
1807 :			frame->motion_flags,
1808 :	h	545	frame->fcode, pParam,
1809 :	chl	530	pMB, &f_predMV, &best_sad,
1810 :	h	545	MODE_FORWARD, &Data);
1811 :	chl	96
1812 :	chl	530	// backward search
1813 :			SearchBF(b_ref->y, b_refH->y, b_refV->y, b_refHV->y,
1814 :			&frame->image, i, j,
1815 :			frame->motion_flags,
1816 :	h	545	frame->bcode, pParam,
1817 :	chl	530	pMB, &b_predMV, &best_sad,
1818 :	h	545	MODE_BACKWARD, &Data);
1819 :	chl	96
1820 :	chl	530	// interpolate search comes last, because it uses data from forward and backward as prediction
1821 :	syskin	662
1822 :	chl	530	SearchInterpolate(f_ref->y, f_refH->y, f_refV->y, f_refHV->y,
1823 :			b_ref->y, b_refH->y, b_refV->y, b_refHV->y,
1824 :			&frame->image,
1825 :			i, j,
1826 :			frame->fcode, frame->bcode,
1827 :			frame->motion_flags,
1828 :	h	545	pParam,
1829 :	chl	530	&f_predMV, &b_predMV,
1830 :	h	545	pMB, &best_sad,
1831 :			&Data);
1832 :	syskin	662
1833 :	syskin	712	// final skip decision
1834 :			if ( (skip_sad < frame->quant * MAX_SAD00_FOR_SKIP*2)
1835 :			&& ((100*best_sad)/(skip_sad+1) > FINAL_SKIP_THRESH) )
1836 :			SkipDecisionB(&frame->image, f_ref, b_ref, pMB,frame->quant, i, j, &Data);
1837 :
1838 :	chl	530	switch (pMB->mode) {
1839 :			case MODE_FORWARD:
1840 :			f_count++;
1841 :	syskin	712	if (Data.qpel) f_predMV = pMB->qmvs[0];
1842 :	syskin	658	else f_predMV = pMB->mvs[0];
1843 :	chl	530	break;
1844 :			case MODE_BACKWARD:
1845 :			b_count++;
1846 :	syskin	712	if (Data.qpel) b_predMV = pMB->b_qmvs[0];
1847 :	syskin	658	else b_predMV = pMB->b_mvs[0];
1848 :	chl	530	break;
1849 :			case MODE_INTERPOLATE:
1850 :			i_count++;
1851 :	syskin	712	if (Data.qpel) {
1852 :	syskin	658	f_predMV = pMB->qmvs[0];
1853 :			b_predMV = pMB->b_qmvs[0];
1854 :			} else {
1855 :			f_predMV = pMB->mvs[0];
1856 :			b_predMV = pMB->b_mvs[0];
1857 :			}
1858 :	chl	530	break;
1859 :			case MODE_DIRECT:
1860 :			case MODE_DIRECT_NO4V:
1861 :			d_count++;
1862 :			default:
1863 :			break;
1864 :	chl	96	}
1865 :			}
1866 :			}
1867 :	syskin	658	free(qimage);
1868 :	chl	96	}
1869 :
1870 :	Isibaar	539	static __inline int
1871 :			MEanalyzeMB ( const uint8_t * const pRef,
1872 :			const uint8_t * const pCur,
1873 :			const int x,
1874 :			const int y,
1875 :			const MBParam * const pParam,
1876 :			const MACROBLOCK * const pMBs,
1877 :	h	545	MACROBLOCK * const pMB,
1878 :			SearchData * const Data)
1879 :	Isibaar	539	{
1880 :	chl	317
1881 :	Isibaar	606	int i = 255, mask;
1882 :	h	545	VECTOR pmv[3];
1883 :	syskin	640	*(Data->iMinSAD) = MV_MAX_ERROR;
1884 :	suxen_drol	118
1885 :	syskin	640	//median is only used as prediction. it doesn't have to be real
1886 :			if (x == 1 && y == 1) Data->predMV.x = Data->predMV.y = 0;
1887 :			else
1888 :			if (x == 1) //left macroblock does not have any vector now
1889 :			Data->predMV = (pMB - pParam->mb_width)->mvs[0]; // top instead of median
1890 :			else if (y == 1) // top macroblock don't have it's vector
1891 :			Data->predMV = (pMB - 1)->mvs[0]; // left instead of median
1892 :			else Data->predMV = get_pmv2(pMBs, pParam->mb_width, 0, x, y, 0); //else median
1893 :
1894 :	h	545	get_range(&Data->min_dx, &Data->max_dx, &Data->min_dy, &Data->max_dy, x, y, 16,
1895 :	syskin	712	pParam->width, pParam->height, Data->iFcode - pParam->m_quarterpel, 0, 0);
1896 :	chl	326
1897 :	h	545	Data->Cur = pCur + (x + y * pParam->edged_width) * 16;
1898 :			Data->Ref = pRef + (x + y * pParam->edged_width) * 16;
1899 :	Isibaar	539
1900 :			pmv[1].x = EVEN(pMB->mvs[0].x);
1901 :			pmv[1].y = EVEN(pMB->mvs[0].y);
1902 :	syskin	640	pmv[2].x = EVEN(Data->predMV.x);
1903 :			pmv[2].y = EVEN(Data->predMV.y);
1904 :			pmv[0].x = pmv[0].y = 0;
1905 :	chl	326
1906 :	syskin	712	CheckCandidate16no4vI(0, 0, 255, &i, Data);
1907 :	syskin	640
1908 :			//early skip for 0,0
1909 :			if (Data->iMinSAD < MAX_SAD00_FOR_SKIP 4) {
1910 :			pMB->mvs[0] = pMB->mvs[1] = pMB->mvs[2] = pMB->mvs[3] = Data->currentMV[0];
1911 :			pMB->mode = MODE_NOT_CODED;
1912 :			return 0;
1913 :			}
1914 :
1915 :	Isibaar	539	if (!(mask = make_mask(pmv, 1)))
1916 :	syskin	712	CheckCandidate16no4vI(pmv[1].x, pmv[1].y, mask, &i, Data);
1917 :	Isibaar	539	if (!(mask = make_mask(pmv, 2)))
1918 :	syskin	712	CheckCandidate16no4vI(pmv[2].x, pmv[2].y, mask, &i, Data);
1919 :	Isibaar	539
1920 :	syskin	712	if (Data->iMinSAD > MAX_SAD00_FOR_SKIP 6) // diamond only if needed
1921 :	syskin	640	DiamondSearch(Data->currentMV->x, Data->currentMV->y, Data, i);
1922 :	Isibaar	539
1923 :	syskin	640	pMB->mvs[0] = pMB->mvs[1] = pMB->mvs[2] = pMB->mvs[3] = Data->currentMV[0];
1924 :	syskin	628	pMB->mode = MODE_INTER;
1925 :	h	545	return *(Data->iMinSAD);
1926 :	Isibaar	539	}
1927 :
1928 :			#define INTRA_THRESH 1350
1929 :	syskin	672	#define INTER_THRESH 1200
1930 :	Isibaar	539
1931 :	syskin	644
1932 :	Isibaar	539	int
1933 :			MEanalysis( const IMAGE * const pRef,
1934 :	syskin	644	FRAMEINFO * const Current,
1935 :	Isibaar	539	MBParam * const pParam,
1936 :	syskin	644	int maxIntra, //maximum number if non-I frames
1937 :			int intraCount, //number of non-I frames after last I frame; 0 if we force P/B frame
1938 :			int bCount) // number if B frames in a row
1939 :	Isibaar	539	{
1940 :			uint32_t x, y, intra = 0;
1941 :			int sSAD = 0;
1942 :	syskin	644	MACROBLOCK * const pMBs = Current->mbs;
1943 :			const IMAGE * const pCurrent = &Current->image;
1944 :			int IntraThresh = INTRA_THRESH, InterThresh = INTER_THRESH;
1945 :	h	545
1946 :			VECTOR currentMV;
1947 :			int32_t iMinSAD;
1948 :			SearchData Data;
1949 :			Data.iEdgedWidth = pParam->edged_width;
1950 :			Data.currentMV = &currentMV;
1951 :			Data.iMinSAD = &iMinSAD;
1952 :	syskin	644	Data.iFcode = Current->fcode;
1953 :	syskin	640	CheckCandidate = CheckCandidate16no4vI;
1954 :	h	545
1955 :	syskin	658	if (intraCount < 10) // we're right after an I frame
1956 :			IntraThresh += 4 * (intraCount - 10) * (intraCount - 10);
1957 :	syskin	644	else
1958 :			if ( 5*(maxIntra - intraCount) < maxIntra) // we're close to maximum. 2 sec when max is 10 sec
1959 :			IntraThresh -= (IntraThresh * (maxIntra - 5*(maxIntra - intraCount)))/maxIntra;
1960 :
1961 :
1962 :	syskin	672	InterThresh += 400 * (1 - bCount);
1963 :	syskin	644	if (InterThresh < 200) InterThresh = 200;
1964 :
1965 :	Isibaar	539	if (sadInit) (*sadInit) ();
1966 :
1967 :	syskin	704	for (y = 1; y < pParam->mb_height-1; y++) {
1968 :			for (x = 1; x < pParam->mb_width-1; x++) {
1969 :	Isibaar	539	int sad, dev;
1970 :			MACROBLOCK pMB = &pMBs[x + y pParam->mb_width];
1971 :
1972 :			sad = MEanalyzeMB(pRef->y, pCurrent->y, x, y,
1973 :	h	545	pParam, pMBs, pMB, &Data);
1974 :	Isibaar	539
1975 :	syskin	644	if (sad > IntraThresh) {
1976 :	syskin	601	dev = dev16(pCurrent->y + (x + y * pParam->edged_width) * 16,
1977 :			pParam->edged_width);
1978 :	syskin	644	if (dev + IntraThresh < sad) {
1979 :			pMB->mode = MODE_INTRA;
1980 :	suxen_drol	709	if (++intra > (pParam->mb_height-2)*(pParam->mb_width-2)/2) return I_VOP;
1981 :	Isibaar	539	}
1982 :	syskin	644	}
1983 :	syskin	601	sSAD += sad;
1984 :	suxen_drol	118	}
1985 :			}
1986 :	syskin	704	sSAD /= (pParam->mb_height-2)*(pParam->mb_width-2);
1987 :	suxen_drol	709	if (sSAD > InterThresh ) return P_VOP;
1988 :	Isibaar	539	emms();
1989 :	suxen_drol	709	return B_VOP;
1990 :	syskin	712
1991 :	suxen_drol	118	}
1992 :	syskin	576
1993 :	syskin	628	static void
1994 :			CheckGMC(int x, int y, const int dir, int * iDirection,
1995 :			const MACROBLOCK * const pMBs, uint32_t * bestcount, VECTOR * GMC,
1996 :			const MBParam * const pParam)
1997 :			{
1998 :			uint32_t mx, my, a, count = 0;
1999 :	chl	619
2000 :	syskin	628	for (my = 1; my < pParam->mb_height-1; my++)
2001 :			for (mx = 1; mx < pParam->mb_width-1; mx++) {
2002 :			VECTOR mv;
2003 :			const MACROBLOCK pMB = &pMBs[mx + my pParam->mb_width];
2004 :			if (pMB->mode == MODE_INTRA \|\| pMB->mode == MODE_NOT_CODED) continue;
2005 :			mv = pMB->mvs[0];
2006 :			a = ABS(mv.x - x) + ABS(mv.y - y);
2007 :			if (a < 6) count += 6 - a;
2008 :			}
2009 :	chl	619
2010 :	syskin	628	if (count > *bestcount) {
2011 :			*bestcount = count;
2012 :			*iDirection = dir;
2013 :			GMC->x = x; GMC->y = y;
2014 :			}
2015 :			}
2016 :
2017 :
2018 :	syskin	712	static __inline VECTOR
2019 :	chl	619	GlobalMotionEst(const MACROBLOCK * const pMBs, const MBParam * const pParam, const uint32_t iFcode)
2020 :			{
2021 :
2022 :	syskin	628	uint32_t count, bestcount = 0;
2023 :	chl	619	int x, y;
2024 :	syskin	628	VECTOR gmc = {0,0};
2025 :	chl	619	int step, min_x, max_x, min_y, max_y;
2026 :			uint32_t mx, my;
2027 :	syskin	628	int iDirection, bDirection;
2028 :	chl	619
2029 :			min_x = min_y = -32<<iFcode;
2030 :			max_x = max_y = 32<<iFcode;
2031 :
2032 :	syskin	628	//step1: let's find a rough camera panning
2033 :	chl	619	for (step = 32; step >= 2; step /= 2) {
2034 :			bestcount = 0;
2035 :			for (y = min_y; y <= max_y; y += step)
2036 :			for (x = min_x ; x <= max_x; x += step) {
2037 :			count = 0;
2038 :			//for all macroblocks
2039 :			for (my = 1; my < pParam->mb_height-1; my++)
2040 :			for (mx = 1; mx < pParam->mb_width-1; mx++) {
2041 :			const MACROBLOCK pMB = &pMBs[mx + my pParam->mb_width];
2042 :			VECTOR mv;
2043 :
2044 :			if (pMB->mode == MODE_INTRA \|\| pMB->mode == MODE_NOT_CODED)
2045 :			continue;
2046 :
2047 :			mv = pMB->mvs[0];
2048 :			if ( ABS(mv.x - x) <= step && ABS(mv.y - y) <= step ) /* GMC translation is always halfpel-res */
2049 :			count++;
2050 :			}
2051 :			if (count >= bestcount) { bestcount = count; gmc.x = x; gmc.y = y; }
2052 :			}
2053 :			min_x = gmc.x - step;
2054 :			max_x = gmc.x + step;
2055 :			min_y = gmc.y - step;
2056 :			max_y = gmc.y + step;
2057 :
2058 :			}
2059 :	syskin	628
2060 :			if (bestcount < (pParam->mb_height-2)*(pParam->mb_width-2)/10)
2061 :			gmc.x = gmc.y = 0; //no camara pan, no GMC
2062 :
2063 :			// step2: let's refine camera panning using gradiend-descent approach.
2064 :			// TODO: more warping points may be evaluated here (like in interpolate mode search - two vectors in one diamond)
2065 :			bestcount = 0;
2066 :			CheckGMC(gmc.x, gmc.y, 255, &iDirection, pMBs, &bestcount, &gmc, pParam);
2067 :			do {
2068 :			x = gmc.x; y = gmc.y;
2069 :			bDirection = iDirection; iDirection = 0;
2070 :			if (bDirection & 1) CheckGMC(x - 1, y, 1+4+8, &iDirection, pMBs, &bestcount, &gmc, pParam);
2071 :			if (bDirection & 2) CheckGMC(x + 1, y, 2+4+8, &iDirection, pMBs, &bestcount, &gmc, pParam);
2072 :			if (bDirection & 4) CheckGMC(x, y - 1, 1+2+4, &iDirection, pMBs, &bestcount, &gmc, pParam);
2073 :			if (bDirection & 8) CheckGMC(x, y + 1, 1+2+8, &iDirection, pMBs, &bestcount, &gmc, pParam);
2074 :
2075 :			} while (iDirection);
2076 :
2077 :	chl	619	if (pParam->m_quarterpel) {
2078 :			gmc.x *= 2;
2079 :			gmc.y = 2; / we store the halfpel value as pseudo-qpel to make comparison easier */
2080 :			}
2081 :
2082 :			return gmc;
2083 :			}

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