Annotation of /branches/Isibaar/xvidcore/src/motion/motion_est.c

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1 :	edgomez	851	/**************************************************************************
2 :	Isibaar	3	*
3 :	edgomez	851	* XVID MPEG-4 VIDEO CODEC
4 :			* motion estimation
5 :	chl	259	*
6 :	edgomez	851	* 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 :	chl	259	*
15 :	edgomez	851	* 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 :	chl	259	*
20 :	edgomez	851	* 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 :	chl	259	*
25 :	edgomez	851	* 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 :	chl	259	*
29 :			*************************************************************************/
30 :
31 :	Isibaar	3	#include <assert.h>
32 :			#include <stdio.h>
33 :	chl	96	#include <stdlib.h>
34 :	edgomez	851	#include <string.h> // memcpy
35 :			#include <math.h> // lrint
36 :	Isibaar	3
37 :			#include "../encoder.h"
38 :			#include "../utils/mbfunctions.h"
39 :			#include "../prediction/mbprediction.h"
40 :			#include "../global.h"
41 :			#include "../utils/timer.h"
42 :	edgomez	851	#include "../image/interpolate8x8.h"
43 :			#include "motion_est.h"
44 :	suxen_drol	118	#include "motion.h"
45 :	Isibaar	3	#include "sad.h"
46 :	edgomez	851	#include "../utils/emms.h"
47 :			#include "../dct/fdct.h"
48 :	Isibaar	3
49 :	edgomez	872	/*****************************************************************************
50 :			* Modified rounding tables -- declared in motion.h
51 :			* Original tables see ISO spec tables 7-6 -> 7-9
52 :			****************************************************************************/
53 :
54 :			const uint32_t roundtab[16] =
55 :			{0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2 };
56 :
57 :			/* K = 4 */
58 :			const uint32_t roundtab_76[16] =
59 :			{ 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1 };
60 :
61 :			/* K = 2 */
62 :			const uint32_t roundtab_78[8] =
63 :			{ 0, 0, 1, 1, 0, 0, 0, 1 };
64 :
65 :			/* K = 1 */
66 :			const uint32_t roundtab_79[4] =
67 :			{ 0, 1, 0, 0 };
68 :
69 :	edgomez	851	#define INITIAL_SKIP_THRESH (10)
70 :			#define FINAL_SKIP_THRESH (50)
71 :			#define MAX_SAD00_FOR_SKIP (20)
72 :			#define MAX_CHROMA_SAD_FOR_SKIP (22)
73 :	Isibaar	3
74 :	edgomez	851	#define CHECK_CANDIDATE(X,Y,D) { \
75 :			CheckCandidate((X),(Y), (D), &iDirection, data ); }
76 :	Isibaar	3
77 :	edgomez	872	/*****************************************************************************
78 :			* Code
79 :			****************************************************************************/
80 :
81 :	edgomez	851	static __inline uint32_t
82 :			d_mv_bits(int x, int y, const VECTOR pred, const uint32_t iFcode, const int qpel, const int rrv)
83 :			{
84 :	syskin	973	int bits;
85 :			const int q = (1 << (iFcode - 1)) - 1;
86 :
87 :			x <<= qpel;
88 :			y <<= qpel;
89 :	edgomez	851	if (rrv) { x = RRV_MV_SCALEDOWN(x); y = RRV_MV_SCALEDOWN(y); }
90 :	chl	141
91 :	edgomez	851	x -= pred.x;
92 :	syskin	973	bits = (x != 0 ? iFcode:0);
93 :			x = abs(x);
94 :			x += q;
95 :			x >>= (iFcode - 1);
96 :			bits += mvtab[x];
97 :
98 :	edgomez	851	y -= pred.y;
99 :	syskin	973	bits += (y != 0 ? iFcode:0);
100 :			y = abs(y);
101 :			y += q;
102 :			y >>= (iFcode - 1);
103 :			bits += mvtab[y];
104 :	chl	141
105 :	syskin	973	return bits;
106 :	edgomez	851	}
107 :	chl	141
108 :	syskin	976	static int32_t ChromaSAD2(const int fx, const int fy, const int bx, const int by,
109 :			const SearchData * const data)
110 :	edgomez	851	{
111 :			int sad;
112 :			const uint32_t stride = data->iEdgedWidth/2;
113 :			uint8_t * f_refu = data->RefQ,
114 :			* f_refv = data->RefQ + 8,
115 :			* b_refu = data->RefQ + 16,
116 :			* b_refv = data->RefQ + 24;
117 :	syskin	976	int offset = (fx>>1) + (fy>>1)*stride;
118 :	Isibaar	3
119 :	edgomez	851	switch (((fx & 1) << 1) \| (fy & 1)) {
120 :			case 0:
121 :	syskin	976	f_refu = (uint8_t*)data->RefP[4] + offset;
122 :			f_refv = (uint8_t*)data->RefP[5] + offset;
123 :	edgomez	851	break;
124 :			case 1:
125 :	syskin	976	interpolate8x8_halfpel_v(f_refu, data->RefP[4] + offset, stride, data->rounding);
126 :			interpolate8x8_halfpel_v(f_refv, data->RefP[5] + offset, stride, data->rounding);
127 :	edgomez	851	break;
128 :			case 2:
129 :	syskin	976	interpolate8x8_halfpel_h(f_refu, data->RefP[4] + offset, stride, data->rounding);
130 :			interpolate8x8_halfpel_h(f_refv, data->RefP[5] + offset, stride, data->rounding);
131 :	edgomez	851	break;
132 :			default:
133 :	syskin	976	interpolate8x8_halfpel_hv(f_refu, data->RefP[4] + offset, stride, data->rounding);
134 :			interpolate8x8_halfpel_hv(f_refv, data->RefP[5] + offset, stride, data->rounding);
135 :	edgomez	851	break;
136 :			}
137 :	Isibaar	3
138 :	syskin	976	offset = (bx>>1) + (by>>1)*stride;
139 :	edgomez	851	switch (((bx & 1) << 1) \| (by & 1)) {
140 :			case 0:
141 :	syskin	976	b_refu = (uint8_t*)data->b_RefP[4] + offset;
142 :			b_refv = (uint8_t*)data->b_RefP[5] + offset;
143 :	edgomez	851	break;
144 :			case 1:
145 :	syskin	976	interpolate8x8_halfpel_v(b_refu, data->b_RefP[4] + offset, stride, data->rounding);
146 :			interpolate8x8_halfpel_v(b_refv, data->b_RefP[5] + offset, stride, data->rounding);
147 :	edgomez	851	break;
148 :			case 2:
149 :	syskin	976	interpolate8x8_halfpel_h(b_refu, data->b_RefP[4] + offset, stride, data->rounding);
150 :			interpolate8x8_halfpel_h(b_refv, data->b_RefP[5] + offset, stride, data->rounding);
151 :	edgomez	851	break;
152 :			default:
153 :	syskin	976	interpolate8x8_halfpel_hv(b_refu, data->b_RefP[4] + offset, stride, data->rounding);
154 :			interpolate8x8_halfpel_hv(b_refv, data->b_RefP[5] + offset, stride, data->rounding);
155 :	edgomez	851	break;
156 :			}
157 :	Isibaar	3
158 :	edgomez	851	sad = sad8bi(data->CurU, b_refu, f_refu, stride);
159 :			sad += sad8bi(data->CurV, b_refv, f_refv, stride);
160 :	Isibaar	3
161 :	edgomez	851	return sad;
162 :			}
163 :	Isibaar	3
164 :	edgomez	851	static int32_t
165 :	syskin	976	ChromaSAD(const int dx, const int dy, const SearchData * const data)
166 :	edgomez	851	{
167 :			int sad;
168 :			const uint32_t stride = data->iEdgedWidth/2;
169 :	syskin	976	int offset = (dx>>1) + (dy>>1)*stride;
170 :	Isibaar	3
171 :	edgomez	851	if (dx == data->temp[5] && dy == data->temp[6]) return data->temp[7]; //it has been checked recently
172 :			data->temp[5] = dx; data->temp[6] = dy; // backup
173 :	Isibaar	3
174 :	edgomez	851	switch (((dx & 1) << 1) \| (dy & 1)) {
175 :			case 0:
176 :	syskin	976	sad = sad8(data->CurU, data->RefP[4] + offset, stride);
177 :			sad += sad8(data->CurV, data->RefP[5] + offset, stride);
178 :	edgomez	851	break;
179 :			case 1:
180 :	syskin	976	sad = sad8bi(data->CurU, data->RefP[4] + offset, data->RefP[4] + offset + stride, stride);
181 :			sad += sad8bi(data->CurV, data->RefP[5] + offset, data->RefP[5] + offset + stride, stride);
182 :	edgomez	851	break;
183 :			case 2:
184 :	syskin	976	sad = sad8bi(data->CurU, data->RefP[4] + offset, data->RefP[4] + offset + 1, stride);
185 :			sad += sad8bi(data->CurV, data->RefP[5] + offset, data->RefP[5] + offset + 1, stride);
186 :	edgomez	851	break;
187 :			default:
188 :	syskin	976	interpolate8x8_halfpel_hv(data->RefQ, data->RefP[4] + offset, stride, data->rounding);
189 :	edgomez	851	sad = sad8(data->CurU, data->RefQ, stride);
190 :
191 :	syskin	976	interpolate8x8_halfpel_hv(data->RefQ, data->RefP[5] + offset, stride, data->rounding);
192 :	edgomez	851	sad += sad8(data->CurV, data->RefQ, stride);
193 :			break;
194 :			}
195 :			data->temp[7] = sad; //backup, part 2
196 :			return sad;
197 :	Isibaar	3	}
198 :
199 :	edgomez	851	static __inline const uint8_t *
200 :			GetReferenceB(const int x, const int y, const uint32_t dir, const SearchData * const data)
201 :	Isibaar	3	{
202 :	edgomez	851	// dir : 0 = forward, 1 = backward
203 :	syskin	985	const uint8_t const const direction = ( dir == 0 ? data->RefP : data->b_RefP );
204 :	syskin	976	const int picture = ((x&1)<<1) \| (y&1);
205 :			const int offset = (x>>1) + (y>>1)*data->iEdgedWidth;
206 :			return direction[picture] + offset;
207 :	Isibaar	3	}
208 :
209 :	edgomez	851	// this is a simpler copy of GetReferenceB, but as it's __inline anyway, we can keep the two separate
210 :			static __inline const uint8_t *
211 :			GetReference(const int x, const int y, const SearchData * const data)
212 :	Isibaar	3	{
213 :	syskin	976	const int picture = ((x&1)<<1) \| (y&1);
214 :			const int offset = (x>>1) + (y>>1)*data->iEdgedWidth;
215 :			return data->RefP[picture] + offset;
216 :	Isibaar	3	}
217 :	edgomez	851
218 :			static uint8_t *
219 :			Interpolate8x8qpel(const int x, const int y, const uint32_t block, const uint32_t dir, const SearchData * const data)
220 :	Isibaar	3	{
221 :	edgomez	851	// create or find a qpel-precision reference picture; return pointer to it
222 :			uint8_t * Reference = data->RefQ + 16*dir;
223 :			const uint32_t iEdgedWidth = data->iEdgedWidth;
224 :			const uint32_t rounding = data->rounding;
225 :			const int halfpel_x = x/2;
226 :			const int halfpel_y = y/2;
227 :			const uint8_t ref1, ref2, ref3, ref4;
228 :	suxen_drol	136
229 :	edgomez	851	ref1 = GetReferenceB(halfpel_x, halfpel_y, dir, data);
230 :			ref1 += 8 * (block&1) + 8 * (block>>1) * iEdgedWidth;
231 :			switch( ((x&1)<<1) + (y&1) ) {
232 :	edgomez	963	case 3: // x and y in qpel resolution - the "corners" (top left/right and
233 :			// bottom left/right) during qpel refinement
234 :			ref2 = GetReferenceB(halfpel_x, y - halfpel_y, dir, data);
235 :			ref3 = GetReferenceB(x - halfpel_x, halfpel_y, dir, data);
236 :			ref4 = GetReferenceB(x - halfpel_x, y - halfpel_y, dir, data);
237 :			ref2 += 8 * (block&1) + 8 * (block>>1) * iEdgedWidth;
238 :			ref3 += 8 * (block&1) + 8 * (block>>1) * iEdgedWidth;
239 :			ref4 += 8 * (block&1) + 8 * (block>>1) * iEdgedWidth;
240 :			interpolate8x8_avg4(Reference, ref1, ref2, ref3, ref4, iEdgedWidth, rounding);
241 :	edgomez	851	break;
242 :	chl	184
243 :	edgomez	851	case 1: // x halfpel, y qpel - top or bottom during qpel refinement
244 :			ref2 = GetReferenceB(halfpel_x, y - halfpel_y, dir, data);
245 :			ref2 += 8 * (block&1) + 8 * (block>>1) * iEdgedWidth;
246 :			interpolate8x8_avg2(Reference, ref1, ref2, iEdgedWidth, rounding, 8);
247 :			break;
248 :	suxen_drol	136
249 :	edgomez	851	case 2: // x qpel, y halfpel - left or right during qpel refinement
250 :			ref2 = GetReferenceB(x - halfpel_x, halfpel_y, dir, data);
251 :			ref2 += 8 * (block&1) + 8 * (block>>1) * iEdgedWidth;
252 :			interpolate8x8_avg2(Reference, ref1, ref2, iEdgedWidth, rounding, 8);
253 :			break;
254 :	edgomez	195
255 :	edgomez	963	default: // pure halfpel position
256 :			return (uint8_t *) ref1;
257 :	syskin	976
258 :	edgomez	851	}
259 :			return Reference;
260 :			}
261 :	Isibaar	3
262 :	edgomez	851	static uint8_t *
263 :			Interpolate16x16qpel(const int x, const int y, const uint32_t dir, const SearchData * const data)
264 :			{
265 :			// create or find a qpel-precision reference picture; return pointer to it
266 :			uint8_t * Reference = data->RefQ + 16*dir;
267 :			const uint32_t iEdgedWidth = data->iEdgedWidth;
268 :			const uint32_t rounding = data->rounding;
269 :			const int halfpel_x = x/2;
270 :			const int halfpel_y = y/2;
271 :			const uint8_t ref1, ref2, ref3, ref4;
272 :	chl	326
273 :	edgomez	851	ref1 = GetReferenceB(halfpel_x, halfpel_y, dir, data);
274 :			switch( ((x&1)<<1) + (y&1) ) {
275 :			case 3: // x and y in qpel resolution - the "corners" (top left/right and
276 :	syskin	976	// bottom left/right) during qpel refinement
277 :	edgomez	851	ref2 = GetReferenceB(halfpel_x, y - halfpel_y, dir, data);
278 :			ref3 = GetReferenceB(x - halfpel_x, halfpel_y, dir, data);
279 :			ref4 = GetReferenceB(x - halfpel_x, y - halfpel_y, dir, data);
280 :			interpolate8x8_avg4(Reference, ref1, ref2, ref3, ref4, iEdgedWidth, rounding);
281 :			interpolate8x8_avg4(Reference+8, ref1+8, ref2+8, ref3+8, ref4+8, iEdgedWidth, rounding);
282 :			interpolate8x8_avg4(Reference+8iEdgedWidth, ref1+8iEdgedWidth, ref2+8iEdgedWidth, ref3+8iEdgedWidth, ref4+8*iEdgedWidth, iEdgedWidth, rounding);
283 :			interpolate8x8_avg4(Reference+8iEdgedWidth+8, ref1+8iEdgedWidth+8, ref2+8iEdgedWidth+8, ref3+8iEdgedWidth+8, ref4+8*iEdgedWidth+8, iEdgedWidth, rounding);
284 :			break;
285 :	chl	184
286 :	edgomez	851	case 1: // x halfpel, y qpel - top or bottom during qpel refinement
287 :			ref2 = GetReferenceB(halfpel_x, y - halfpel_y, dir, data);
288 :			interpolate8x8_avg2(Reference, ref1, ref2, iEdgedWidth, rounding, 8);
289 :			interpolate8x8_avg2(Reference+8, ref1+8, ref2+8, iEdgedWidth, rounding, 8);
290 :			interpolate8x8_avg2(Reference+8iEdgedWidth, ref1+8iEdgedWidth, ref2+8*iEdgedWidth, iEdgedWidth, rounding, 8);
291 :			interpolate8x8_avg2(Reference+8iEdgedWidth+8, ref1+8iEdgedWidth+8, ref2+8*iEdgedWidth+8, iEdgedWidth, rounding, 8);
292 :			break;
293 :	chl	184
294 :	edgomez	851	case 2: // x qpel, y halfpel - left or right during qpel refinement
295 :			ref2 = GetReferenceB(x - halfpel_x, halfpel_y, dir, data);
296 :			interpolate8x8_avg2(Reference, ref1, ref2, iEdgedWidth, rounding, 8);
297 :			interpolate8x8_avg2(Reference+8, ref1+8, ref2+8, iEdgedWidth, rounding, 8);
298 :			interpolate8x8_avg2(Reference+8iEdgedWidth, ref1+8iEdgedWidth, ref2+8*iEdgedWidth, iEdgedWidth, rounding, 8);
299 :			interpolate8x8_avg2(Reference+8iEdgedWidth+8, ref1+8iEdgedWidth+8, ref2+8*iEdgedWidth+8, iEdgedWidth, rounding, 8);
300 :			break;
301 :	edgomez	195
302 :	edgomez	963	default: // pure halfpel position
303 :	edgomez	851	return (uint8_t *) ref1;
304 :			}
305 :			return Reference;
306 :			}
307 :	edgomez	195
308 :	edgomez	851	/* CHECK_CANDIATE FUNCTIONS START */
309 :	edgomez	195
310 :	edgomez	851	static void
311 :			CheckCandidate16(const int x, const int y, const int Direction, int * const dir, const SearchData * const data)
312 :			{
313 :			int xc, yc;
314 :			const uint8_t * Reference;
315 :			VECTOR * current;
316 :			int32_t sad; uint32_t t;
317 :	edgomez	195
318 :	edgomez	851	if ( (x > data->max_dx) \|\| (x < data->min_dx)
319 :			\|\| (y > data->max_dy) \|\| (y < data->min_dy) ) return;
320 :	edgomez	195
321 :	edgomez	851	if (!data->qpel_precision) {
322 :			Reference = GetReference(x, y, data);
323 :			current = data->currentMV;
324 :			xc = x; yc = y;
325 :			} else { // x and y are in 1/4 precision
326 :			Reference = Interpolate16x16qpel(x, y, 0, data);
327 :			xc = x/2; yc = y/2; //for chroma sad
328 :			current = data->currentQMV;
329 :			}
330 :	edgomez	195
331 :	edgomez	851	sad = sad16v(data->Cur, Reference, data->iEdgedWidth, data->temp + 1);
332 :			t = d_mv_bits(x, y, data->predMV, data->iFcode, data->qpel^data->qpel_precision, 0);
333 :	edgomez	195
334 :	edgomez	851	sad += (data->lambda16 * t * sad)>>10;
335 :			data->temp[1] += (data->lambda8 * t * (data->temp[1] + NEIGH_8X8_BIAS))>>10;
336 :	chl	175
337 :	syskin	976	if (data->chroma) sad += ChromaSAD( (xc >> 1) + roundtab_79[xc & 0x3],
338 :			(yc >> 1) + roundtab_79[yc & 0x3], data);
339 :	edgomez	195
340 :	edgomez	851	if (sad < data->iMinSAD[0]) {
341 :			data->iMinSAD[0] = sad;
342 :			current[0].x = x; current[0].y = y;
343 :			*dir = Direction;
344 :			}
345 :	edgomez	195
346 :	edgomez	851	if (data->temp[1] < data->iMinSAD[1]) {
347 :			data->iMinSAD[1] = data->temp[1]; current[1].x = x; current[1].y = y; }
348 :			if (data->temp[2] < data->iMinSAD[2]) {
349 :			data->iMinSAD[2] = data->temp[2]; current[2].x = x; current[2].y = y; }
350 :			if (data->temp[3] < data->iMinSAD[3]) {
351 :			data->iMinSAD[3] = data->temp[3]; current[3].x = x; current[3].y = y; }
352 :			if (data->temp[4] < data->iMinSAD[4]) {
353 :			data->iMinSAD[4] = data->temp[4]; current[4].x = x; current[4].y = y; }
354 :	Isibaar	3	}
355 :
356 :	edgomez	851	static void
357 :			CheckCandidate8(const int x, const int y, const int Direction, int * const dir, const SearchData * const data)
358 :			{
359 :			int32_t sad; uint32_t t;
360 :			const uint8_t * Reference;
361 :	syskin	973	VECTOR * current;
362 :	chl	326
363 :	edgomez	851	if ( (x > data->max_dx) \|\| (x < data->min_dx)
364 :			\|\| (y > data->max_dy) \|\| (y < data->min_dy) ) return;
365 :	Isibaar	3
366 :	syskin	973	if (!data->qpel_precision) {
367 :			Reference = GetReference(x, y, data);
368 :			current = data->currentMV;
369 :			} else { // x and y are in 1/4 precision
370 :			Reference = Interpolate8x8qpel(x, y, 0, 0, data);
371 :			current = data->currentQMV;
372 :			}
373 :	Isibaar	3
374 :	edgomez	851	sad = sad8(data->Cur, Reference, data->iEdgedWidth);
375 :			t = d_mv_bits(x, y, data->predMV, data->iFcode, data->qpel^data->qpel_precision, 0);
376 :	Isibaar	3
377 :	edgomez	851	sad += (data->lambda8 * t * (sad+NEIGH_8X8_BIAS))>>10;
378 :	Isibaar	3
379 :	edgomez	851	if (sad < *(data->iMinSAD)) {
380 :			*(data->iMinSAD) = sad;
381 :	syskin	973	current->x = x; current->y = y;
382 :	edgomez	851	*dir = Direction;
383 :			}
384 :	Isibaar	3	}
385 :
386 :	edgomez	851	static void
387 :			CheckCandidate32(const int x, const int y, const int Direction, int * const dir, const SearchData * const data)
388 :			{
389 :			uint32_t t;
390 :			const uint8_t * Reference;
391 :
392 :	edgomez	963	if ( (!(x&1) && x !=0) \|\| (!(y&1) && y !=0) \|\| //non-zero even value
393 :	edgomez	851	(x > data->max_dx) \|\| (x < data->min_dx)
394 :			\|\| (y > data->max_dy) \|\| (y < data->min_dy) ) return;
395 :
396 :			Reference = GetReference(x, y, data);
397 :			t = d_mv_bits(x, y, data->predMV, data->iFcode, 0, 1);
398 :
399 :			data->temp[0] = sad32v_c(data->Cur, Reference, data->iEdgedWidth, data->temp + 1);
400 :
401 :			data->temp[0] += (data->lambda16 * t * data->temp[0]) >> 10;
402 :			data->temp[1] += (data->lambda8 * t * (data->temp[1] + NEIGH_8X8_BIAS))>>10;
403 :
404 :			if (data->temp[0] < data->iMinSAD[0]) {
405 :			data->iMinSAD[0] = data->temp[0];
406 :			data->currentMV[0].x = x; data->currentMV[0].y = y;
407 :			*dir = Direction; }
408 :
409 :			if (data->temp[1] < data->iMinSAD[1]) {
410 :			data->iMinSAD[1] = data->temp[1]; data->currentMV[1].x = x; data->currentMV[1].y = y; }
411 :			if (data->temp[2] < data->iMinSAD[2]) {
412 :			data->iMinSAD[2] = data->temp[2]; data->currentMV[2].x = x; data->currentMV[2].y = y; }
413 :			if (data->temp[3] < data->iMinSAD[3]) {
414 :			data->iMinSAD[3] = data->temp[3]; data->currentMV[3].x = x; data->currentMV[3].y = y; }
415 :			if (data->temp[4] < data->iMinSAD[4]) {
416 :			data->iMinSAD[4] = data->temp[4]; data->currentMV[4].x = x; data->currentMV[4].y = y; }
417 :	Isibaar	3	}
418 :	edgomez	195
419 :	edgomez	851	static void
420 :			CheckCandidate16no4v(const int x, const int y, const int Direction, int * const dir, const SearchData * const data)
421 :			{
422 :			int32_t sad, xc, yc;
423 :			const uint8_t * Reference;
424 :			uint32_t t;
425 :			VECTOR * current;
426 :
427 :	edgomez	963	if ( (x > data->max_dx) \|\| ( x < data->min_dx)
428 :			\|\| (y > data->max_dy) \|\| (y < data->min_dy) ) return;
429 :	edgomez	851
430 :			if (data->rrv && (!(x&1) && x !=0) \| (!(y&1) && y !=0) ) return; //non-zero even value
431 :
432 :			if (data->qpel_precision) { // x and y are in 1/4 precision
433 :			Reference = Interpolate16x16qpel(x, y, 0, data);
434 :			current = data->currentQMV;
435 :			xc = x/2; yc = y/2;
436 :			} else {
437 :			Reference = GetReference(x, y, data);
438 :			current = data->currentMV;
439 :			xc = x; yc = y;
440 :			}
441 :			t = d_mv_bits(x, y, data->predMV, data->iFcode,
442 :			data->qpel^data->qpel_precision, data->rrv);
443 :
444 :			sad = sad16(data->Cur, Reference, data->iEdgedWidth, 256*4096);
445 :			sad += (data->lambda16 * t * sad)>>10;
446 :
447 :			if (data->chroma) sad += ChromaSAD((xc >> 1) + roundtab_79[xc & 0x3],
448 :			(yc >> 1) + roundtab_79[yc & 0x3], data);
449 :
450 :			if (sad < *(data->iMinSAD)) {
451 :			*(data->iMinSAD) = sad;
452 :			current->x = x; current->y = y;
453 :			*dir = Direction;
454 :			}
455 :	chl	96	}
456 :	Isibaar	3
457 :	edgomez	851	static void
458 :			CheckCandidate32I(const int x, const int y, const int Direction, int * const dir, const SearchData * const data)
459 :			{
460 :			// maximum speed - for P/B/I decision
461 :			int32_t sad;
462 :
463 :			if ( (x > data->max_dx) \|\| (x < data->min_dx)
464 :			\|\| (y > data->max_dy) \|\| (y < data->min_dy) ) return;
465 :
466 :	syskin	985	sad = sad32v_c(data->Cur, data->RefP[0] + (x>>1) + (y>>1)*(data->iEdgedWidth),
467 :			data->iEdgedWidth, data->temp+1);
468 :	edgomez	851
469 :			if (sad < *(data->iMinSAD)) {
470 :			*(data->iMinSAD) = sad;
471 :			data->currentMV[0].x = x; data->currentMV[0].y = y;
472 :			*dir = Direction;
473 :			}
474 :			if (data->temp[1] < data->iMinSAD[1]) {
475 :			data->iMinSAD[1] = data->temp[1]; data->currentMV[1].x = x; data->currentMV[1].y = y; }
476 :			if (data->temp[2] < data->iMinSAD[2]) {
477 :			data->iMinSAD[2] = data->temp[2]; data->currentMV[2].x = x; data->currentMV[2].y = y; }
478 :			if (data->temp[3] < data->iMinSAD[3]) {
479 :			data->iMinSAD[3] = data->temp[3]; data->currentMV[3].x = x; data->currentMV[3].y = y; }
480 :			if (data->temp[4] < data->iMinSAD[4]) {
481 :			data->iMinSAD[4] = data->temp[4]; data->currentMV[4].x = x; data->currentMV[4].y = y; }
482 :
483 :	Isibaar	3	}
484 :
485 :	edgomez	851	static void
486 :			CheckCandidateInt(const int xf, const int yf, const int Direction, int * const dir, const SearchData * const data)
487 :			{
488 :			int32_t sad, xb, yb, xcf, ycf, xcb, ycb;
489 :			uint32_t t;
490 :			const uint8_t ReferenceF, ReferenceB;
491 :			VECTOR *current;
492 :
493 :	edgomez	963	if ((xf > data->max_dx) \|\| (xf < data->min_dx) \|\|
494 :			(yf > data->max_dy) \|\| (yf < data->min_dy))
495 :			return;
496 :	edgomez	851
497 :			if (!data->qpel_precision) {
498 :			ReferenceF = GetReference(xf, yf, data);
499 :			xb = data->currentMV[1].x; yb = data->currentMV[1].y;
500 :			ReferenceB = GetReferenceB(xb, yb, 1, data);
501 :			current = data->currentMV;
502 :			xcf = xf; ycf = yf;
503 :			xcb = xb; ycb = yb;
504 :			} else {
505 :			ReferenceF = Interpolate16x16qpel(xf, yf, 0, data);
506 :			xb = data->currentQMV[1].x; yb = data->currentQMV[1].y;
507 :			current = data->currentQMV;
508 :			ReferenceB = Interpolate16x16qpel(xb, yb, 1, data);
509 :			xcf = xf/2; ycf = yf/2;
510 :			xcb = xb/2; ycb = yb/2;
511 :			}
512 :
513 :			t = d_mv_bits(xf, yf, data->predMV, data->iFcode, data->qpel^data->qpel_precision, 0)
514 :	syskin	976	+ d_mv_bits(xb, yb, data->bpredMV, data->iFcode, data->qpel^data->qpel_precision, 0);
515 :	edgomez	851
516 :			sad = sad16bi(data->Cur, ReferenceF, ReferenceB, data->iEdgedWidth);
517 :			sad += (data->lambda16 * t * sad)>>10;
518 :
519 :			if (data->chroma) sad += ChromaSAD2((xcf >> 1) + roundtab_79[xcf & 0x3],
520 :			(ycf >> 1) + roundtab_79[ycf & 0x3],
521 :			(xcb >> 1) + roundtab_79[xcb & 0x3],
522 :			(ycb >> 1) + roundtab_79[ycb & 0x3], data);
523 :
524 :			if (sad < *(data->iMinSAD)) {
525 :			*(data->iMinSAD) = sad;
526 :			current->x = xf; current->y = yf;
527 :			*dir = Direction;
528 :			}
529 :	Isibaar	3	}
530 :
531 :	edgomez	851	static void
532 :			CheckCandidateDirect(const int x, const int y, const int Direction, int * const dir, const SearchData * const data)
533 :			{
534 :			int32_t sad = 0, xcf = 0, ycf = 0, xcb = 0, ycb = 0;
535 :			uint32_t k;
536 :			const uint8_t *ReferenceF;
537 :			const uint8_t *ReferenceB;
538 :			VECTOR mvs, b_mvs;
539 :
540 :	syskin	904	if (( x > 31) \|\| ( x < -32) \|\| ( y > 31) \|\| (y < -32)) return;
541 :	edgomez	851
542 :			for (k = 0; k < 4; k++) {
543 :			mvs.x = data->directmvF[k].x + x;
544 :			b_mvs.x = ((x == 0) ?
545 :			data->directmvB[k].x
546 :			: mvs.x - data->referencemv[k].x);
547 :
548 :			mvs.y = data->directmvF[k].y + y;
549 :			b_mvs.y = ((y == 0) ?
550 :			data->directmvB[k].y
551 :			: mvs.y - data->referencemv[k].y);
552 :
553 :	edgomez	963	if ((mvs.x > data->max_dx) \|\| (mvs.x < data->min_dx) \|\|
554 :			(mvs.y > data->max_dy) \|\| (mvs.y < data->min_dy) \|\|
555 :			(b_mvs.x > data->max_dx) \|\| (b_mvs.x < data->min_dx) \|\|
556 :			(b_mvs.y > data->max_dy) \|\| (b_mvs.y < data->min_dy) )
557 :			return;
558 :	edgomez	851
559 :			if (data->qpel) {
560 :			xcf += mvs.x/2; ycf += mvs.y/2;
561 :			xcb += b_mvs.x/2; ycb += b_mvs.y/2;
562 :			} else {
563 :			xcf += mvs.x; ycf += mvs.y;
564 :			xcb += b_mvs.x; ycb += b_mvs.y;
565 :			mvs.x = 2; mvs.y = 2; //we move to qpel precision anyway
566 :			b_mvs.x = 2; b_mvs.y = 2;
567 :			}
568 :
569 :			ReferenceF = Interpolate8x8qpel(mvs.x, mvs.y, k, 0, data);
570 :			ReferenceB = Interpolate8x8qpel(b_mvs.x, b_mvs.y, k, 1, data);
571 :
572 :			sad += sad8bi(data->Cur + 8(k&1) + 8(k>>1)*(data->iEdgedWidth),
573 :			ReferenceF, ReferenceB, data->iEdgedWidth);
574 :			if (sad > *(data->iMinSAD)) return;
575 :			}
576 :
577 :			sad += (data->lambda16 * d_mv_bits(x, y, zeroMV, 1, 0, 0) * sad)>>10;
578 :
579 :			if (data->chroma) sad += ChromaSAD2((xcf >> 3) + roundtab_76[xcf & 0xf],
580 :			(ycf >> 3) + roundtab_76[ycf & 0xf],
581 :			(xcb >> 3) + roundtab_76[xcb & 0xf],
582 :			(ycb >> 3) + roundtab_76[ycb & 0xf], data);
583 :
584 :			if (sad < *(data->iMinSAD)) {
585 :			*(data->iMinSAD) = sad;
586 :			data->currentMV->x = x; data->currentMV->y = y;
587 :			*dir = Direction;
588 :			}
589 :	Isibaar	3	}
590 :
591 :	edgomez	851	static void
592 :			CheckCandidateDirectno4v(const int x, const int y, const int Direction, int * const dir, const SearchData * const data)
593 :	Isibaar	3	{
594 :	edgomez	851	int32_t sad, xcf, ycf, xcb, ycb;
595 :			const uint8_t *ReferenceF;
596 :			const uint8_t *ReferenceB;
597 :			VECTOR mvs, b_mvs;
598 :	Isibaar	3
599 :	edgomez	963	if (( x > 31) \|\| ( x < -32) \|\| ( y > 31) \|\| (y < -32)) return;
600 :	Isibaar	3
601 :	edgomez	851	mvs.x = data->directmvF[0].x + x;
602 :			b_mvs.x = ((x == 0) ?
603 :			data->directmvB[0].x
604 :			: mvs.x - data->referencemv[0].x);
605 :	Isibaar	3
606 :	edgomez	851	mvs.y = data->directmvF[0].y + y;
607 :			b_mvs.y = ((y == 0) ?
608 :			data->directmvB[0].y
609 :			: mvs.y - data->referencemv[0].y);
610 :	Isibaar	3
611 :	edgomez	963	if ( (mvs.x > data->max_dx) \|\| (mvs.x < data->min_dx)
612 :			\|\| (mvs.y > data->max_dy) \|\| (mvs.y < data->min_dy)
613 :			\|\| (b_mvs.x > data->max_dx) \|\| (b_mvs.x < data->min_dx)
614 :			\|\| (b_mvs.y > data->max_dy) \|\| (b_mvs.y < data->min_dy) ) return;
615 :	Isibaar	3
616 :	edgomez	851	if (data->qpel) {
617 :			xcf = 4(mvs.x/2); ycf = 4(mvs.y/2);
618 :			xcb = 4(b_mvs.x/2); ycb = 4(b_mvs.y/2);
619 :			ReferenceF = Interpolate16x16qpel(mvs.x, mvs.y, 0, data);
620 :			ReferenceB = Interpolate16x16qpel(b_mvs.x, b_mvs.y, 1, data);
621 :			} else {
622 :			xcf = 4mvs.x; ycf = 4mvs.y;
623 :			xcb = 4b_mvs.x; ycb = 4b_mvs.y;
624 :			ReferenceF = GetReference(mvs.x, mvs.y, data);
625 :			ReferenceB = GetReferenceB(b_mvs.x, b_mvs.y, 1, data);
626 :			}
627 :
628 :			sad = sad16bi(data->Cur, ReferenceF, ReferenceB, data->iEdgedWidth);
629 :			sad += (data->lambda16 * d_mv_bits(x, y, zeroMV, 1, 0, 0) * sad)>>10;
630 :
631 :			if (data->chroma) sad += ChromaSAD2((xcf >> 3) + roundtab_76[xcf & 0xf],
632 :			(ycf >> 3) + roundtab_76[ycf & 0xf],
633 :			(xcb >> 3) + roundtab_76[xcb & 0xf],
634 :			(ycb >> 3) + roundtab_76[ycb & 0xf], data);
635 :
636 :			if (sad < *(data->iMinSAD)) {
637 :			*(data->iMinSAD) = sad;
638 :			data->currentMV->x = x; data->currentMV->y = y;
639 :			*dir = Direction;
640 :			}
641 :	Isibaar	3	}
642 :
643 :	edgomez	851
644 :			static void
645 :			CheckCandidateBits16(const int x, const int y, const int Direction, int * const dir, const SearchData * const data)
646 :	Isibaar	3	{
647 :
648 :	edgomez	961	int16_t in = data->dctSpace, coeff = data->dctSpace + 64;
649 :	edgomez	851	int32_t bits = 0, sum;
650 :			VECTOR * current;
651 :			const uint8_t * ptr;
652 :			int i, cbp = 0, t, xc, yc;
653 :	edgomez	195
654 :	edgomez	851	if ( (x > data->max_dx) \|\| (x < data->min_dx)
655 :			\|\| (y > data->max_dy) \|\| (y < data->min_dy) ) return;
656 :	edgomez	195
657 :	edgomez	851	if (!data->qpel_precision) {
658 :			ptr = GetReference(x, y, data);
659 :			current = data->currentMV;
660 :			xc = x; yc = y;
661 :			} else { // x and y are in 1/4 precision
662 :			ptr = Interpolate16x16qpel(x, y, 0, data);
663 :			current = data->currentQMV;
664 :			xc = x/2; yc = y/2;
665 :			}
666 :	Isibaar	3
667 :	edgomez	851	for(i = 0; i < 4; i++) {
668 :			int s = 8((i&1) + (i>>1)data->iEdgedWidth);
669 :			transfer_8to16subro(in, data->Cur + s, ptr + s, data->iEdgedWidth);
670 :			fdct(in);
671 :			if (data->lambda8 == 0) sum = quant_inter(coeff, in, data->lambda16);
672 :			else sum = quant4_inter(coeff, in, data->lambda16);
673 :			if (sum > 0) {
674 :			cbp \|= 1 << (5 - i);
675 :			bits += data->temp[i] = CodeCoeffInter_CalcBits(coeff, scan_tables[0]);
676 :			} else data->temp[i] = 0;
677 :			}
678 :	Isibaar	3
679 :	edgomez	851	bits += t = d_mv_bits(x, y, data->predMV, data->iFcode, data->qpel^data->qpel_precision, 0);
680 :	edgomez	195
681 :	edgomez	851	if (bits < data->iMinSAD[0]) { // there is still a chance, adding chroma
682 :			xc = (xc >> 1) + roundtab_79[xc & 0x3];
683 :			yc = (yc >> 1) + roundtab_79[yc & 0x3];
684 :
685 :			//chroma U
686 :	syskin	976	ptr = interpolate8x8_switch2(data->RefQ + 64, data->RefP[4], 0, 0, xc, yc, data->iEdgedWidth/2, data->rounding);
687 :	edgomez	851	transfer_8to16subro(in, ptr, data->CurU, data->iEdgedWidth/2);
688 :			fdct(in);
689 :			if (data->lambda8 == 0) sum = quant_inter(coeff, in, data->lambda16);
690 :			else sum = quant4_inter(coeff, in, data->lambda16);
691 :			if (sum > 0) {
692 :			cbp \|= 1 << (5 - 4);
693 :			bits += CodeCoeffInter_CalcBits(coeff, scan_tables[0]);
694 :	chl	344	}
695 :	edgomez	851
696 :			if (bits < data->iMinSAD[0]) {
697 :			//chroma V
698 :	syskin	976	ptr = interpolate8x8_switch2(data->RefQ + 64, data->RefP[5], 0, 0, xc, yc, data->iEdgedWidth/2, data->rounding);
699 :	edgomez	851	transfer_8to16subro(in, ptr, data->CurV, data->iEdgedWidth/2);
700 :			fdct(in);
701 :			if (data->lambda8 == 0) sum = quant_inter(coeff, in, data->lambda16);
702 :			else sum = quant4_inter(coeff, in, data->lambda16);
703 :			if (sum > 0) {
704 :			cbp \|= 1 << (5 - 5);
705 :			bits += CodeCoeffInter_CalcBits(coeff, scan_tables[0]);
706 :			}
707 :			}
708 :	edgomez	78	}
709 :	edgomez	851
710 :	chl	897	bits += xvid_cbpy_tab[15-(cbp>>2)].len;
711 :	edgomez	851	bits += mcbpc_inter_tab[(MODE_INTER & 7) \| ((cbp & 3) << 3)].len;
712 :
713 :			if (bits < data->iMinSAD[0]) {
714 :			data->iMinSAD[0] = bits;
715 :			current[0].x = x; current[0].y = y;
716 :			*dir = Direction;
717 :			}
718 :
719 :			if (data->temp[0] + t < data->iMinSAD[1]) {
720 :			data->iMinSAD[1] = data->temp[0] + t; current[1].x = x; current[1].y = y; }
721 :			if (data->temp[1] < data->iMinSAD[2]) {
722 :			data->iMinSAD[2] = data->temp[1]; current[2].x = x; current[2].y = y; }
723 :			if (data->temp[2] < data->iMinSAD[3]) {
724 :			data->iMinSAD[3] = data->temp[2]; current[3].x = x; current[3].y = y; }
725 :			if (data->temp[3] < data->iMinSAD[4]) {
726 :			data->iMinSAD[4] = data->temp[3]; current[4].x = x; current[4].y = y; }
727 :
728 :	Isibaar	3	}
729 :	edgomez	851	static void
730 :			CheckCandidateBits8(const int x, const int y, const int Direction, int * const dir, const SearchData * const data)
731 :	chl	96	{
732 :
733 :	edgomez	961	int16_t in = data->dctSpace, coeff = data->dctSpace + 64;
734 :	edgomez	851	int32_t sum, bits;
735 :			VECTOR * current;
736 :			const uint8_t * ptr;
737 :			int cbp;
738 :	edgomez	195
739 :	edgomez	851	if ( (x > data->max_dx) \|\| (x < data->min_dx)
740 :			\|\| (y > data->max_dy) \|\| (y < data->min_dy) ) return;
741 :	edgomez	195
742 :	edgomez	851	if (!data->qpel_precision) {
743 :			ptr = GetReference(x, y, data);
744 :			current = data->currentMV;
745 :			} else { // x and y are in 1/4 precision
746 :			ptr = Interpolate8x8qpel(x, y, 0, 0, data);
747 :			current = data->currentQMV;
748 :			}
749 :	chl	96
750 :	edgomez	851	transfer_8to16subro(in, data->Cur, ptr, data->iEdgedWidth);
751 :			fdct(in);
752 :			if (data->lambda8 == 0) sum = quant_inter(coeff, in, data->lambda16);
753 :			else sum = quant4_inter(coeff, in, data->lambda16);
754 :			if (sum > 0) {
755 :			bits = CodeCoeffInter_CalcBits(coeff, scan_tables[0]);
756 :			cbp = 1;
757 :			} else cbp = bits = 0;
758 :	chl	96
759 :	edgomez	851	bits += sum = d_mv_bits(x, y, data->predMV, data->iFcode, data->qpel^data->qpel_precision, 0);
760 :	chl	96
761 :	edgomez	851	if (bits < data->iMinSAD[0]) {
762 :			data->temp[0] = cbp;
763 :			data->iMinSAD[0] = bits;
764 :			current[0].x = x; current[0].y = y;
765 :			*dir = Direction;
766 :			}
767 :			}
768 :	chl	96
769 :	edgomez	851	/* CHECK_CANDIATE FUNCTIONS END */
770 :	edgomez	195
771 :	edgomez	851	/* MAINSEARCH FUNCTIONS START */
772 :	chl	96
773 :	edgomez	851	static void
774 :			AdvDiamondSearch(int x, int y, const SearchData * const data, int bDirection)
775 :			{
776 :	edgomez	195
777 :	edgomez	851	/* directions: 1 - left (x-1); 2 - right (x+1), 4 - up (y-1); 8 - down (y+1) */
778 :	edgomez	195
779 :	edgomez	851	int iDirection;
780 :	edgomez	195
781 :	edgomez	851	for(;;) { //forever
782 :			iDirection = 0;
783 :			if (bDirection & 1) CHECK_CANDIDATE(x - iDiamondSize, y, 1);
784 :			if (bDirection & 2) CHECK_CANDIDATE(x + iDiamondSize, y, 2);
785 :			if (bDirection & 4) CHECK_CANDIDATE(x, y - iDiamondSize, 4);
786 :			if (bDirection & 8) CHECK_CANDIDATE(x, y + iDiamondSize, 8);
787 :	edgomez	195
788 :	edgomez	851	/* now we're doing diagonal checks near our candidate */
789 :	edgomez	195
790 :	edgomez	851	if (iDirection) { //if anything found
791 :			bDirection = iDirection;
792 :			iDirection = 0;
793 :			x = data->currentMV->x; y = data->currentMV->y;
794 :			if (bDirection & 3) { //our candidate is left or right
795 :			CHECK_CANDIDATE(x, y + iDiamondSize, 8);
796 :			CHECK_CANDIDATE(x, y - iDiamondSize, 4);
797 :			} else { // what remains here is up or down
798 :			CHECK_CANDIDATE(x + iDiamondSize, y, 2);
799 :			CHECK_CANDIDATE(x - iDiamondSize, y, 1);
800 :			}
801 :	edgomez	195
802 :	edgomez	851	if (iDirection) {
803 :			bDirection += iDirection;
804 :			x = data->currentMV->x; y = data->currentMV->y;
805 :			}
806 :			} else { //about to quit, eh? not so fast....
807 :			switch (bDirection) {
808 :			case 2:
809 :			CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2 + 4);
810 :			CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2 + 8);
811 :	edgomez	195	break;
812 :	edgomez	851	case 1:
813 :			CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1 + 4);
814 :			CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1 + 8);
815 :	edgomez	195	break;
816 :	edgomez	851	case 2 + 4:
817 :			CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1 + 4);
818 :			CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2 + 4);
819 :			CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2 + 8);
820 :			break;
821 :			case 4:
822 :			CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2 + 4);
823 :			CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1 + 4);
824 :			break;
825 :	edgomez	195	case 8:
826 :	edgomez	851	CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2 + 8);
827 :			CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1 + 8);
828 :	edgomez	195	break;
829 :	edgomez	851	case 1 + 4:
830 :			CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1 + 8);
831 :			CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1 + 4);
832 :			CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2 + 4);
833 :	edgomez	195	break;
834 :	edgomez	851	case 2 + 8:
835 :			CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1 + 4);
836 :			CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1 + 8);
837 :			CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2 + 8);
838 :			break;
839 :			case 1 + 8:
840 :			CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2 + 4);
841 :			CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2 + 8);
842 :			CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1 + 8);
843 :			break;
844 :			default: //1+2+4+8 == we didn't find anything at all
845 :			CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1 + 4);
846 :			CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1 + 8);
847 :			CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2 + 4);
848 :			CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2 + 8);
849 :			break;
850 :	chl	96	}
851 :	edgomez	851	if (!iDirection) break; //ok, the end. really
852 :			bDirection = iDirection;
853 :			x = data->currentMV->x; y = data->currentMV->y;
854 :	chl	345	}
855 :	edgomez	195	}
856 :	chl	96	}
857 :
858 :	edgomez	851	static void
859 :			SquareSearch(int x, int y, const SearchData * const data, int bDirection)
860 :	chl	96	{
861 :	edgomez	851	int iDirection;
862 :	edgomez	195
863 :	edgomez	851	do {
864 :			iDirection = 0;
865 :			if (bDirection & 1) CHECK_CANDIDATE(x - iDiamondSize, y, 1+16+64);
866 :			if (bDirection & 2) CHECK_CANDIDATE(x + iDiamondSize, y, 2+32+128);
867 :			if (bDirection & 4) CHECK_CANDIDATE(x, y - iDiamondSize, 4+16+32);
868 :			if (bDirection & 8) CHECK_CANDIDATE(x, y + iDiamondSize, 8+64+128);
869 :			if (bDirection & 16) CHECK_CANDIDATE(x - iDiamondSize, y - iDiamondSize, 1+4+16+32+64);
870 :			if (bDirection & 32) CHECK_CANDIDATE(x + iDiamondSize, y - iDiamondSize, 2+4+16+32+128);
871 :			if (bDirection & 64) CHECK_CANDIDATE(x - iDiamondSize, y + iDiamondSize, 1+8+16+64+128);
872 :			if (bDirection & 128) CHECK_CANDIDATE(x + iDiamondSize, y + iDiamondSize, 2+8+32+64+128);
873 :	chl	96
874 :	edgomez	851	bDirection = iDirection;
875 :			x = data->currentMV->x; y = data->currentMV->y;
876 :			} while (iDirection);
877 :	chl	96	}
878 :
879 :	edgomez	851	static void
880 :			DiamondSearch(int x, int y, const SearchData * const data, int bDirection)
881 :	chl	181	{
882 :
883 :			/* directions: 1 - left (x-1); 2 - right (x+1), 4 - up (y-1); 8 - down (y+1) */
884 :
885 :	edgomez	851	int iDirection;
886 :	edgomez	195
887 :	edgomez	851	do {
888 :			iDirection = 0;
889 :			if (bDirection & 1) CHECK_CANDIDATE(x - iDiamondSize, y, 1);
890 :			if (bDirection & 2) CHECK_CANDIDATE(x + iDiamondSize, y, 2);
891 :			if (bDirection & 4) CHECK_CANDIDATE(x, y - iDiamondSize, 4);
892 :			if (bDirection & 8) CHECK_CANDIDATE(x, y + iDiamondSize, 8);
893 :
894 :			/* now we're doing diagonal checks near our candidate */
895 :
896 :			if (iDirection) { //checking if anything found
897 :			bDirection = iDirection;
898 :	chl	181	iDirection = 0;
899 :	edgomez	851	x = data->currentMV->x; y = data->currentMV->y;
900 :			if (bDirection & 3) { //our candidate is left or right
901 :			CHECK_CANDIDATE(x, y + iDiamondSize, 8);
902 :			CHECK_CANDIDATE(x, y - iDiamondSize, 4);
903 :			} else { // what remains here is up or down
904 :			CHECK_CANDIDATE(x + iDiamondSize, y, 2);
905 :			CHECK_CANDIDATE(x - iDiamondSize, y, 1);
906 :			}
907 :			bDirection += iDirection;
908 :			x = data->currentMV->x; y = data->currentMV->y;
909 :			}
910 :			}
911 :			while (iDirection);
912 :			}
913 :	chl	181
914 :	edgomez	851	/* MAINSEARCH FUNCTIONS END */
915 :	chl	181
916 :	edgomez	851	static void
917 :			SubpelRefine(const SearchData * const data)
918 :			{
919 :			/* Do a half-pel or q-pel refinement */
920 :			const VECTOR centerMV = data->qpel_precision ? data->currentQMV : data->currentMV;
921 :			int iDirection; //only needed because macro expects it
922 :	chl	181
923 :	edgomez	851	CHECK_CANDIDATE(centerMV.x, centerMV.y - 1, 0);
924 :			CHECK_CANDIDATE(centerMV.x + 1, centerMV.y - 1, 0);
925 :			CHECK_CANDIDATE(centerMV.x + 1, centerMV.y, 0);
926 :			CHECK_CANDIDATE(centerMV.x + 1, centerMV.y + 1, 0);
927 :			CHECK_CANDIDATE(centerMV.x, centerMV.y + 1, 0);
928 :			CHECK_CANDIDATE(centerMV.x - 1, centerMV.y + 1, 0);
929 :			CHECK_CANDIDATE(centerMV.x - 1, centerMV.y, 0);
930 :			CHECK_CANDIDATE(centerMV.x - 1, centerMV.y - 1, 0);
931 :			}
932 :	chl	181
933 :	edgomez	851	static __inline int
934 :			SkipDecisionP(const IMAGE * current, const IMAGE * reference,
935 :			const int x, const int y,
936 :			const uint32_t stride, const uint32_t iQuant, int rrv)
937 :	chl	181
938 :	edgomez	851	{
939 :	edgomez	963	int offset = (x + ystride)8;
940 :	edgomez	851	if(!rrv) {
941 :	edgomez	963	uint32_t sadC = sad8(current->u + offset,
942 :			reference->u + offset, stride);
943 :	edgomez	851	if (sadC > iQuant * MAX_CHROMA_SAD_FOR_SKIP) return 0;
944 :	edgomez	963	sadC += sad8(current->v + offset,
945 :			reference->v + offset, stride);
946 :	edgomez	851	if (sadC > iQuant * MAX_CHROMA_SAD_FOR_SKIP) return 0;
947 :			return 1;
948 :	chl	181
949 :	edgomez	851	} else {
950 :	edgomez	963	uint32_t sadC = sad16(current->u + 2*offset,
951 :			reference->u + 2offset, stride, 2564096);
952 :	edgomez	851	if (sadC > iQuant * MAX_CHROMA_SAD_FOR_SKIP*4) return 0;
953 :	edgomez	963	sadC += sad16(current->v + 2*offset,
954 :			reference->v + 2offset, stride, 2564096);
955 :	edgomez	851	if (sadC > iQuant * MAX_CHROMA_SAD_FOR_SKIP*4) return 0;
956 :			return 1;
957 :	chl	181	}
958 :	edgomez	851	}
959 :	edgomez	504
960 :	edgomez	851	static __inline void
961 :			SkipMacroblockP(MACROBLOCK *pMB, const int32_t sad)
962 :			{
963 :			pMB->mode = MODE_NOT_CODED;
964 :			pMB->mvs[0] = pMB->mvs[1] = pMB->mvs[2] = pMB->mvs[3] = zeroMV;
965 :			pMB->qmvs[0] = pMB->qmvs[1] = pMB->qmvs[2] = pMB->qmvs[3] = zeroMV;
966 :			pMB->sad16 = pMB->sad8[0] = pMB->sad8[1] = pMB->sad8[2] = pMB->sad8[3] = sad;
967 :	chl	181	}
968 :
969 :	Isibaar	1004	static __inline void
970 :			ZeroMacroblockP(MACROBLOCK *pMB, const int32_t sad)
971 :			{
972 :			pMB->mode = MODE_INTER;
973 :			pMB->mvs[0] = pMB->mvs[1] = pMB->mvs[2] = pMB->mvs[3] = zeroMV;
974 :			pMB->qmvs[0] = pMB->qmvs[1] = pMB->qmvs[2] = pMB->qmvs[3] = zeroMV;
975 :			pMB->sad16 = pMB->sad8[0] = pMB->sad8[1] = pMB->sad8[2] = pMB->sad8[3] = sad;
976 :			}
977 :
978 :	edgomez	851	bool
979 :			MotionEstimation(MBParam * const pParam,
980 :	syskin	976	FRAMEINFO * const current,
981 :			FRAMEINFO * const reference,
982 :			const IMAGE * const pRefH,
983 :			const IMAGE * const pRefV,
984 :			const IMAGE * const pRefHV,
985 :			const uint32_t iLimit)
986 :	chl	181	{
987 :	edgomez	851	MACROBLOCK *const pMBs = current->mbs;
988 :			const IMAGE *const pCurrent = &current->image;
989 :			const IMAGE *const pRef = &reference->image;
990 :	chl	181
991 :	edgomez	851	uint32_t mb_width = pParam->mb_width;
992 :			uint32_t mb_height = pParam->mb_height;
993 :			const uint32_t iEdgedWidth = pParam->edged_width;
994 :			const uint32_t MotionFlags = MakeGoodMotionFlags(current->motion_flags, current->global_flags);
995 :	chl	181
996 :	edgomez	851	uint32_t x, y;
997 :			uint32_t iIntra = 0;
998 :			int32_t quant = current->quant, sad00;
999 :	syskin	976	int skip_thresh = INITIAL_SKIP_THRESH *
1000 :			(current->global_flags & XVID_REDUCED ? 4:1) *
1001 :	syskin	904	(current->global_flags & XVID_MODEDECISION_BITS ? 2:1);
1002 :	chl	181
1003 :	edgomez	851	// some pre-initialized thingies for SearchP
1004 :			int32_t temp[8];
1005 :			VECTOR currentMV[5];
1006 :			VECTOR currentQMV[5];
1007 :			int32_t iMinSAD[5];
1008 :	edgomez	961	DECLARE_ALIGNED_MATRIX(dct_space, 2, 64, int16_t, CACHE_LINE);
1009 :	edgomez	851	SearchData Data;
1010 :			memset(&Data, 0, sizeof(SearchData));
1011 :			Data.iEdgedWidth = iEdgedWidth;
1012 :			Data.currentMV = currentMV;
1013 :			Data.currentQMV = currentQMV;
1014 :			Data.iMinSAD = iMinSAD;
1015 :			Data.temp = temp;
1016 :			Data.iFcode = current->fcode;
1017 :			Data.rounding = pParam->m_rounding_type;
1018 :			Data.qpel = pParam->m_quarterpel;
1019 :			Data.chroma = MotionFlags & PMV_CHROMA16;
1020 :			Data.rrv = current->global_flags & XVID_REDUCED;
1021 :	edgomez	961	Data.dctSpace = dct_space;
1022 :	edgomez	195
1023 :	edgomez	851	if ((current->global_flags & XVID_REDUCED)) {
1024 :			mb_width = (pParam->width + 31) / 32;
1025 :			mb_height = (pParam->height + 31) / 32;
1026 :			Data.qpel = 0;
1027 :			}
1028 :	chl	181
1029 :	edgomez	851	Data.RefQ = pRefV->u; // a good place, also used in MC (for similar purpose)
1030 :			if (sadInit) (*sadInit) ();
1031 :	chl	181
1032 :	edgomez	851	for (y = 0; y < mb_height; y++) {
1033 :			for (x = 0; x < mb_width; x++) {
1034 :			MACROBLOCK pMB = &pMBs[x + y pParam->mb_width];
1035 :	chl	181
1036 :	edgomez	851	if (!Data.rrv) pMB->sad16 =
1037 :			sad16v(pCurrent->y + (x + y * iEdgedWidth) * 16,
1038 :			pRef->y + (x + y * iEdgedWidth) * 16,
1039 :			pParam->edged_width, pMB->sad8 );
1040 :	chl	181
1041 :	edgomez	851	else pMB->sad16 =
1042 :			sad32v_c(pCurrent->y + (x + y * iEdgedWidth) * 32,
1043 :			pRef->y + (x + y * iEdgedWidth) * 32,
1044 :			pParam->edged_width, pMB->sad8 );
1045 :	chl	181
1046 :	edgomez	851	if (Data.chroma) {
1047 :			Data.temp[7] = sad8(pCurrent->u + x8 + y(iEdgedWidth/2)*8,
1048 :			pRef->u + x8 + y(iEdgedWidth/2)*8, iEdgedWidth/2)
1049 :			+ sad8(pCurrent->v + (x + y(iEdgedWidth/2))8,
1050 :			pRef->v + (x + y(iEdgedWidth/2))8, iEdgedWidth/2);
1051 :			pMB->sad16 += Data.temp[7];
1052 :			}
1053 :
1054 :			sad00 = pMB->sad16;
1055 :
1056 :			if (!(current->global_flags & XVID_LUMIMASKING)) {
1057 :			pMB->dquant = NO_CHANGE;
1058 :			} else {
1059 :			if (pMB->dquant != NO_CHANGE) {
1060 :			quant += DQtab[pMB->dquant];
1061 :			if (quant > 31) quant = 31;
1062 :			else if (quant < 1) quant = 1;
1063 :	chl	181	}
1064 :	edgomez	851	}
1065 :			pMB->quant = current->quant;
1066 :	chl	181
1067 :	edgomez	851	//initial skip decision
1068 :			/* no early skip for GMC (global vector = skip vector is unknown!) */
1069 :			if (!(current->global_flags & XVID_GMC)) { /* no fast SKIP for S(GMC)-VOPs */
1070 :	syskin	904	if (pMB->dquant == NO_CHANGE && sad00 < pMB->quant * skip_thresh)
1071 :	edgomez	851	if (Data.chroma \|\| SkipDecisionP(pCurrent, pRef, x, y, iEdgedWidth/2, pMB->quant, Data.rrv)) {
1072 :			SkipMacroblockP(pMB, sad00);
1073 :			continue;
1074 :			}
1075 :			}
1076 :
1077 :	Isibaar	1004	if ((current->global_flags & XVID_CARTOON_MODE) &&
1078 :			(sad00 < pMB->quant * 4 * skip_thresh)) { /* favorize (0,0) vector for cartoons */
1079 :			ZeroMacroblockP(pMB, sad00);
1080 :			continue;
1081 :			}
1082 :
1083 :	edgomez	851	SearchP(pRef, pRefH->y, pRefV->y, pRefHV->y, pCurrent, x,
1084 :			y, MotionFlags, current->global_flags, pMB->quant,
1085 :			&Data, pParam, pMBs, reference->mbs,
1086 :			current->global_flags & XVID_INTER4V, pMB);
1087 :
1088 :			/* final skip decision, a.k.a. "the vector you found, really that good?" */
1089 :	syskin	904	if (!(current->global_flags & XVID_GMC \|\| current->global_flags & XVID_MODEDECISION_BITS)) {
1090 :	edgomez	851	if ( pMB->dquant == NO_CHANGE && sad00 < pMB->quant * MAX_SAD00_FOR_SKIP) {
1091 :	syskin	904	if ( (100pMB->sad16)/(sad00+1) > FINAL_SKIP_THRESH (Data.rrv ? 4:1) )
1092 :			if (Data.chroma \|\| SkipDecisionP(pCurrent, pRef, x, y, iEdgedWidth/2, pMB->quant, Data.rrv))
1093 :			SkipMacroblockP(pMB, sad00);
1094 :	chl	181	}
1095 :			}
1096 :	edgomez	851	if (pMB->mode == MODE_INTRA)
1097 :			if (++iIntra > iLimit) return 1;
1098 :	chl	181	}
1099 :			}
1100 :	edgomez	851
1101 :			if (current->global_flags & XVID_GMC ) /* GMC only for S(GMC)-VOPs */
1102 :			{
1103 :			current->warp = GlobalMotionEst( pMBs, pParam, current, reference, pRefH, pRefV, pRefHV);
1104 :			}
1105 :			return 0;
1106 :	chl	181	}
1107 :
1108 :
1109 :	edgomez	851	static __inline int
1110 :			make_mask(const VECTOR * const pmv, const int i)
1111 :	chl	96	{
1112 :	edgomez	851	int mask = 255, j;
1113 :			for (j = 0; j < i; j++) {
1114 :			if (MVequal(pmv[i], pmv[j])) return 0; // same vector has been checked already
1115 :			if (pmv[i].x == pmv[j].x) {
1116 :			if (pmv[i].y == pmv[j].y + iDiamondSize) mask &= ~4;
1117 :			else if (pmv[i].y == pmv[j].y - iDiamondSize) mask &= ~8;
1118 :			} else
1119 :			if (pmv[i].y == pmv[j].y) {
1120 :			if (pmv[i].x == pmv[j].x + iDiamondSize) mask &= ~1;
1121 :			else if (pmv[i].x == pmv[j].x - iDiamondSize) mask &= ~2;
1122 :			}
1123 :			}
1124 :			return mask;
1125 :			}
1126 :	edgomez	195
1127 :	edgomez	851	static __inline void
1128 :			PreparePredictionsP(VECTOR * const pmv, int x, int y, int iWcount,
1129 :			int iHcount, const MACROBLOCK * const prevMB, int rrv)
1130 :			{
1131 :	chl	96
1132 :	edgomez	851	//this function depends on get_pmvdata which means that it sucks. It should get the predictions by itself
1133 :			if (rrv) { iWcount /= 2; iHcount /= 2; }
1134 :	edgomez	195
1135 :	edgomez	851	if ( (y != 0) && (x < (iWcount-1)) ) { // [5] top-right neighbour
1136 :			pmv[5].x = EVEN(pmv[3].x);
1137 :			pmv[5].y = EVEN(pmv[3].y);
1138 :			} else pmv[5].x = pmv[5].y = 0;
1139 :	chl	96
1140 :	edgomez	851	if (x != 0) { pmv[3].x = EVEN(pmv[1].x); pmv[3].y = EVEN(pmv[1].y); }// pmv[3] is left neighbour
1141 :			else pmv[3].x = pmv[3].y = 0;
1142 :	chl	96
1143 :	edgomez	851	if (y != 0) { pmv[4].x = EVEN(pmv[2].x); pmv[4].y = EVEN(pmv[2].y); }// [4] top neighbour
1144 :			else pmv[4].x = pmv[4].y = 0;
1145 :	Isibaar	3
1146 :	edgomez	851	// [1] median prediction
1147 :			pmv[1].x = EVEN(pmv[0].x); pmv[1].y = EVEN(pmv[0].y);
1148 :	edgomez	195
1149 :	edgomez	851	pmv[0].x = pmv[0].y = 0; // [0] is zero; not used in the loop (checked before) but needed here for make_mask
1150 :	edgomez	195
1151 :	edgomez	851	pmv[2].x = EVEN(prevMB->mvs[0].x); // [2] is last frame
1152 :			pmv[2].y = EVEN(prevMB->mvs[0].y);
1153 :
1154 :			if ((x < iWcount-1) && (y < iHcount-1)) {
1155 :			pmv[6].x = EVEN((prevMB+1+iWcount)->mvs[0].x); //[6] right-down neighbour in last frame
1156 :			pmv[6].y = EVEN((prevMB+1+iWcount)->mvs[0].y);
1157 :			} else pmv[6].x = pmv[6].y = 0;
1158 :
1159 :			if (rrv) {
1160 :			int i;
1161 :			for (i = 0; i < 7; i++) {
1162 :			pmv[i].x = RRV_MV_SCALEUP(pmv[i].x);
1163 :			pmv[i].y = RRV_MV_SCALEUP(pmv[i].y);
1164 :			}
1165 :			}
1166 :	Isibaar	3	}
1167 :
1168 :	edgomez	851	static int
1169 :			ModeDecision(const uint32_t iQuant, SearchData * const Data,
1170 :			int inter4v,
1171 :			MACROBLOCK * const pMB,
1172 :			const MACROBLOCK * const pMBs,
1173 :			const int x, const int y,
1174 :			const MBParam * const pParam,
1175 :			const uint32_t MotionFlags,
1176 :			const uint32_t GlobalFlags)
1177 :			{
1178 :	Isibaar	3
1179 :	edgomez	851	int mode = MODE_INTER;
1180 :	chl	96
1181 :	edgomez	851	if (!(GlobalFlags & XVID_MODEDECISION_BITS)) { //normal, fast, SAD-based mode decision
1182 :			int sad;
1183 :			int InterBias = MV16_INTER_BIAS;
1184 :			if (inter4v == 0 \|\| Data->iMinSAD[0] < Data->iMinSAD[1] + Data->iMinSAD[2] +
1185 :			Data->iMinSAD[3] + Data->iMinSAD[4] + IMV16X16 * (int32_t)iQuant) {
1186 :	edgomez	963	mode = MODE_INTER;
1187 :			sad = Data->iMinSAD[0];
1188 :	edgomez	851	} else {
1189 :			mode = MODE_INTER4V;
1190 :			sad = Data->iMinSAD[1] + Data->iMinSAD[2] +
1191 :			Data->iMinSAD[3] + Data->iMinSAD[4] + IMV16X16 * (int32_t)iQuant;
1192 :			Data->iMinSAD[0] = sad;
1193 :			}
1194 :	chl	326
1195 :	edgomez	851	/* intra decision */
1196 :	Isibaar	3
1197 :	edgomez	851	if (iQuant > 8) InterBias += 100 * (iQuant - 8); // to make high quants work
1198 :			if (y != 0)
1199 :			if ((pMB - pParam->mb_width)->mode == MODE_INTRA ) InterBias -= 80;
1200 :			if (x != 0)
1201 :			if ((pMB - 1)->mode == MODE_INTRA ) InterBias -= 80;
1202 :	Isibaar	3
1203 :	edgomez	851	if (Data->chroma) InterBias += 50; // to compensate bigger SAD
1204 :			if (Data->rrv) InterBias *= 4;
1205 :	edgomez	195
1206 :	edgomez	851	if (InterBias < pMB->sad16) {
1207 :			int32_t deviation;
1208 :			if (!Data->rrv) deviation = dev16(Data->Cur, Data->iEdgedWidth);
1209 :			else deviation = dev16(Data->Cur, Data->iEdgedWidth) +
1210 :			dev16(Data->Cur+8, Data->iEdgedWidth) +
1211 :			dev16(Data->Cur + 8*Data->iEdgedWidth, Data->iEdgedWidth) +
1212 :			dev16(Data->Cur+8+8*Data->iEdgedWidth, Data->iEdgedWidth);
1213 :	edgomez	195
1214 :	edgomez	963	if (deviation < (sad - InterBias)) return MODE_INTRA;
1215 :	edgomez	851	}
1216 :			return mode;
1217 :	Isibaar	3
1218 :	edgomez	851	} else {
1219 :	edgomez	195
1220 :	edgomez	851	int bits, intra, i;
1221 :			VECTOR backup[5], *v;
1222 :			Data->lambda16 = iQuant;
1223 :			Data->lambda8 = pParam->m_quant_type;
1224 :	chl	181
1225 :	edgomez	851	v = Data->qpel ? Data->currentQMV : Data->currentMV;
1226 :			for (i = 0; i < 5; i++) {
1227 :			Data->iMinSAD[i] = 256*4096;
1228 :			backup[i] = v[i];
1229 :			}
1230 :	Isibaar	3
1231 :	edgomez	851	bits = CountMBBitsInter(Data, pMBs, x, y, pParam, MotionFlags);
1232 :			if (bits == 0) return MODE_INTER; // quick stop
1233 :	Isibaar	3
1234 :	edgomez	851	if (inter4v) {
1235 :	edgomez	963	int bits_inter4v = CountMBBitsInter4v(Data, pMB, pMBs, x, y, pParam, MotionFlags, backup);
1236 :			if (bits_inter4v < bits) { Data->iMinSAD[0] = bits = bits_inter4v; mode = MODE_INTER4V; }
1237 :	edgomez	851	}
1238 :	edgomez	195
1239 :	edgomez	851	intra = CountMBBitsIntra(Data);
1240 :	Isibaar	3
1241 :	edgomez	851	if (intra < bits) { *Data->iMinSAD = bits = intra; return MODE_INTRA; }
1242 :
1243 :			return mode;
1244 :	edgomez	195	}
1245 :	edgomez	851	}
1246 :	Isibaar	3
1247 :	edgomez	851	static void
1248 :			SearchP(const IMAGE * const pRef,
1249 :			const uint8_t * const pRefH,
1250 :			const uint8_t * const pRefV,
1251 :			const uint8_t * const pRefHV,
1252 :			const IMAGE * const pCur,
1253 :			const int x,
1254 :			const int y,
1255 :			const uint32_t MotionFlags,
1256 :			const uint32_t GlobalFlags,
1257 :			const uint32_t iQuant,
1258 :			SearchData * const Data,
1259 :			const MBParam * const pParam,
1260 :			const MACROBLOCK * const pMBs,
1261 :			const MACROBLOCK * const prevMBs,
1262 :			int inter4v,
1263 :			MACROBLOCK * const pMB)
1264 :			{
1265 :	Isibaar	3
1266 :	edgomez	851	int i, iDirection = 255, mask, threshA;
1267 :			VECTOR pmv[7];
1268 :	Isibaar	3
1269 :	edgomez	851	get_range(&Data->min_dx, &Data->max_dx, &Data->min_dy, &Data->max_dy, x, y, 16,
1270 :			pParam->width, pParam->height, Data->iFcode - Data->qpel, 0, Data->rrv);
1271 :	edgomez	195
1272 :	edgomez	851	get_pmvdata2(pMBs, pParam->mb_width, 0, x, y, 0, pmv, Data->temp);
1273 :	Isibaar	3
1274 :	edgomez	851	Data->temp[5] = Data->temp[6] = 0; // chroma-sad cache
1275 :			i = Data->rrv ? 2 : 1;
1276 :			Data->Cur = pCur->y + (x + y * Data->iEdgedWidth) * 16*i;
1277 :			Data->CurV = pCur->v + (x + y * (Data->iEdgedWidth/2)) * 8*i;
1278 :			Data->CurU = pCur->u + (x + y * (Data->iEdgedWidth/2)) * 8*i;
1279 :	chl	326
1280 :	syskin	976	Data->RefP[0] = pRef->y + (x + Data->iEdgedWidthy) 16*i;
1281 :			Data->RefP[2] = pRefH + (x + Data->iEdgedWidthy) 16*i;
1282 :			Data->RefP[1] = pRefV + (x + Data->iEdgedWidthy) 16*i;
1283 :			Data->RefP[3] = pRefHV + (x + Data->iEdgedWidthy) 16*i;
1284 :			Data->RefP[4] = pRef->u + (x + y * (Data->iEdgedWidth/2)) * 8*i;
1285 :			Data->RefP[5] = pRef->v + (x + y * (Data->iEdgedWidth/2)) * 8*i;
1286 :	edgomez	195
1287 :	edgomez	851	Data->lambda16 = lambda_vec16[iQuant];
1288 :			Data->lambda8 = lambda_vec8[iQuant];
1289 :			Data->qpel_precision = 0;
1290 :	edgomez	195
1291 :	edgomez	851	if (pMB->dquant != NO_CHANGE) inter4v = 0;
1292 :	edgomez	195
1293 :	edgomez	963	memset(Data->currentMV, 0, 5*sizeof(VECTOR));
1294 :	chl	169
1295 :	edgomez	851	if (Data->qpel) Data->predMV = get_qpmv2(pMBs, pParam->mb_width, 0, x, y, 0);
1296 :			else Data->predMV = pmv[0];
1297 :	Isibaar	3
1298 :	edgomez	851	i = d_mv_bits(0, 0, Data->predMV, Data->iFcode, 0, 0);
1299 :			Data->iMinSAD[0] = pMB->sad16 + ((Data->lambda16 * i * pMB->sad16)>>10);
1300 :			Data->iMinSAD[1] = pMB->sad8[0] + ((Data->lambda8 * i * (pMB->sad8[0]+NEIGH_8X8_BIAS)) >> 10);
1301 :			Data->iMinSAD[2] = pMB->sad8[1];
1302 :			Data->iMinSAD[3] = pMB->sad8[2];
1303 :			Data->iMinSAD[4] = pMB->sad8[3];
1304 :	chl	169
1305 :	edgomez	851	if ((!(GlobalFlags & XVID_MODEDECISION_BITS)) \|\| (x \| y)) {
1306 :			threshA = Data->temp[0]; // that's where we keep this SAD atm
1307 :			if (threshA < 512) threshA = 512;
1308 :			else if (threshA > 1024) threshA = 1024;
1309 :			} else
1310 :			threshA = 512;
1311 :	chl	169
1312 :	edgomez	851	PreparePredictionsP(pmv, x, y, pParam->mb_width, pParam->mb_height,
1313 :			prevMBs + x + y * pParam->mb_width, Data->rrv);
1314 :	chl	169
1315 :	edgomez	851	if (!Data->rrv) {
1316 :			if (inter4v \| Data->chroma) CheckCandidate = CheckCandidate16;
1317 :			else CheckCandidate = CheckCandidate16no4v; //for extra speed
1318 :			} else CheckCandidate = CheckCandidate32;
1319 :	chl	169
1320 :	edgomez	851	/* main loop. checking all predictions (but first, which is 0,0 and has been checked in MotionEstimation())*/
1321 :	chl	169
1322 :	edgomez	851	for (i = 1; i < 7; i++) {
1323 :			if (!(mask = make_mask(pmv, i)) ) continue;
1324 :			CheckCandidate(pmv[i].x, pmv[i].y, mask, &iDirection, Data);
1325 :			if (Data->iMinSAD[0] <= threshA) break;
1326 :			}
1327 :	chl	169
1328 :	edgomez	851	if ((Data->iMinSAD[0] <= threshA) \|\|
1329 :			(MVequal(Data->currentMV[0], (prevMBs+x+y*pParam->mb_width)->mvs[0]) &&
1330 :			(Data->iMinSAD[0] < (prevMBs+x+y*pParam->mb_width)->sad16))) {
1331 :			if (!(GlobalFlags & XVID_MODEDECISION_BITS)) inter4v = 0; }
1332 :			else {
1333 :	Isibaar	3
1334 :	edgomez	851	MainSearchFunc * MainSearchPtr;
1335 :			if (MotionFlags & PMV_USESQUARES16) MainSearchPtr = SquareSearch;
1336 :			else if (MotionFlags & PMV_ADVANCEDDIAMOND16) MainSearchPtr = AdvDiamondSearch;
1337 :			else MainSearchPtr = DiamondSearch;
1338 :	Isibaar	3
1339 :	edgomez	851	MainSearchPtr(Data->currentMV->x, Data->currentMV->y, Data, iDirection);
1340 :	Isibaar	3
1341 :	edgomez	851	/* extended search, diamond starting in 0,0 and in prediction.
1342 :			note that this search is/might be done in halfpel positions,
1343 :			which makes it more different than the diamond above */
1344 :	chl	169
1345 :	edgomez	851	if (MotionFlags & PMV_EXTSEARCH16) {
1346 :			int32_t bSAD;
1347 :			VECTOR startMV = Data->predMV, backupMV = Data->currentMV[0];
1348 :			if (Data->rrv) {
1349 :			startMV.x = RRV_MV_SCALEUP(startMV.x);
1350 :			startMV.y = RRV_MV_SCALEUP(startMV.y);
1351 :			}
1352 :			if (!(MVequal(startMV, backupMV))) {
1353 :			bSAD = Data->iMinSAD[0]; Data->iMinSAD[0] = MV_MAX_ERROR;
1354 :	edgomez	195
1355 :	edgomez	851	CheckCandidate(startMV.x, startMV.y, 255, &iDirection, Data);
1356 :			MainSearchPtr(startMV.x, startMV.y, Data, 255);
1357 :			if (bSAD < Data->iMinSAD[0]) {
1358 :			Data->currentMV[0] = backupMV;
1359 :			Data->iMinSAD[0] = bSAD; }
1360 :			}
1361 :	chl	169
1362 :	edgomez	851	backupMV = Data->currentMV[0];
1363 :			startMV.x = startMV.y = 1;
1364 :			if (!(MVequal(startMV, backupMV))) {
1365 :			bSAD = Data->iMinSAD[0]; Data->iMinSAD[0] = MV_MAX_ERROR;
1366 :	chl	169
1367 :	edgomez	851	CheckCandidate(startMV.x, startMV.y, 255, &iDirection, Data);
1368 :			MainSearchPtr(startMV.x, startMV.y, Data, 255);
1369 :			if (bSAD < Data->iMinSAD[0]) {
1370 :			Data->currentMV[0] = backupMV;
1371 :			Data->iMinSAD[0] = bSAD; }
1372 :	edgomez	195	}
1373 :	edgomez	851	}
1374 :			}
1375 :	edgomez	195
1376 :	edgomez	851	if (MotionFlags & PMV_HALFPELREFINE16)
1377 :	syskin	985	SubpelRefine(Data);
1378 :	edgomez	195
1379 :	edgomez	851	for(i = 0; i < 5; i++) {
1380 :			Data->currentQMV[i].x = 2 * Data->currentMV[i].x; // initialize qpel vectors
1381 :			Data->currentQMV[i].y = 2 * Data->currentMV[i].y;
1382 :			}
1383 :	Isibaar	3
1384 :	syskin	904	if (MotionFlags & PMV_QUARTERPELREFINE16) {
1385 :	syskin	976
1386 :	syskin	904	get_range(&Data->min_dx, &Data->max_dx, &Data->min_dy, &Data->max_dy, x, y, 16,
1387 :			pParam->width, pParam->height, Data->iFcode, 1, 0);
1388 :	syskin	985	Data->qpel_precision = 1;
1389 :			SubpelRefine(Data);
1390 :	syskin	904	}
1391 :	Isibaar	3
1392 :	edgomez	851	if ((!(GlobalFlags & XVID_MODEDECISION_BITS)) && (Data->iMinSAD[0] < (int32_t)iQuant * 30)) inter4v = 0;
1393 :	Isibaar	3
1394 :	syskin	985	if (inter4v) {
1395 :	edgomez	851	SearchData Data8;
1396 :			memcpy(&Data8, Data, sizeof(SearchData)); //quick copy of common data
1397 :	Isibaar	3
1398 :	edgomez	851	Search8(Data, 2x, 2y, MotionFlags, pParam, pMB, pMBs, 0, &Data8);
1399 :			Search8(Data, 2x + 1, 2y, MotionFlags, pParam, pMB, pMBs, 1, &Data8);
1400 :			Search8(Data, 2x, 2y + 1, MotionFlags, pParam, pMB, pMBs, 2, &Data8);
1401 :			Search8(Data, 2x + 1, 2y + 1, MotionFlags, pParam, pMB, pMBs, 3, &Data8);
1402 :	chl	181
1403 :	edgomez	851	if ((Data->chroma) && (!(GlobalFlags & XVID_MODEDECISION_BITS))) {
1404 :			// chroma is only used for comparsion to INTER. if the comparsion will be done in BITS domain, there is no reason to compute it
1405 :			int sumx = 0, sumy = 0;
1406 :	syskin	986	const int div = Data->qpel ? 2 : 1;
1407 :	edgomez	851	const VECTOR * const mv = Data->qpel ? pMB->qmvs : pMB->mvs;
1408 :	Isibaar	3
1409 :	edgomez	851	for (i = 0; i < 4; i++) {
1410 :			sumx += mv[i].x / div;
1411 :			sumy += mv[i].y / div;
1412 :			}
1413 :	chl	259
1414 :	edgomez	851	Data->iMinSAD[1] += ChromaSAD( (sumx >> 3) + roundtab_76[sumx & 0xf],
1415 :			(sumy >> 3) + roundtab_76[sumy & 0xf], Data);
1416 :			}
1417 :			}
1418 :	edgomez	195
1419 :	edgomez	851	inter4v = ModeDecision(iQuant, Data, inter4v, pMB, pMBs, x, y, pParam, MotionFlags, GlobalFlags);
1420 :
1421 :			if (Data->rrv) {
1422 :			Data->currentMV[0].x = RRV_MV_SCALEDOWN(Data->currentMV[0].x);
1423 :			Data->currentMV[0].y = RRV_MV_SCALEDOWN(Data->currentMV[0].y);
1424 :	Isibaar	3	}
1425 :
1426 :	edgomez	851	if (inter4v == MODE_INTER) {
1427 :			pMB->mode = MODE_INTER;
1428 :			pMB->mvs[0] = pMB->mvs[1] = pMB->mvs[2] = pMB->mvs[3] = Data->currentMV[0];
1429 :			pMB->sad16 = pMB->sad8[0] = pMB->sad8[1] = pMB->sad8[2] = pMB->sad8[3] = Data->iMinSAD[0];
1430 :	Isibaar	3
1431 :	edgomez	851	if(Data->qpel) {
1432 :			pMB->qmvs[0] = pMB->qmvs[1]
1433 :			= pMB->qmvs[2] = pMB->qmvs[3] = Data->currentQMV[0];
1434 :			pMB->pmvs[0].x = Data->currentQMV[0].x - Data->predMV.x;
1435 :			pMB->pmvs[0].y = Data->currentQMV[0].y - Data->predMV.y;
1436 :			} else {
1437 :			pMB->pmvs[0].x = Data->currentMV[0].x - Data->predMV.x;
1438 :			pMB->pmvs[0].y = Data->currentMV[0].y - Data->predMV.y;
1439 :	Isibaar	3	}
1440 :
1441 :	edgomez	851	} else if (inter4v == MODE_INTER4V) {
1442 :			pMB->mode = MODE_INTER4V;
1443 :			pMB->sad16 = Data->iMinSAD[0];
1444 :			} else { // INTRA mode
1445 :			SkipMacroblockP(pMB, 0); // not skip, but similar enough
1446 :			pMB->mode = MODE_INTRA;
1447 :			}
1448 :	edgomez	195
1449 :	edgomez	851	}
1450 :
1451 :			static void
1452 :			Search8(const SearchData * const OldData,
1453 :			const int x, const int y,
1454 :			const uint32_t MotionFlags,
1455 :			const MBParam * const pParam,
1456 :			MACROBLOCK * const pMB,
1457 :			const MACROBLOCK * const pMBs,
1458 :			const int block,
1459 :			SearchData * const Data)
1460 :			{
1461 :			int i = 0;
1462 :			Data->iMinSAD = OldData->iMinSAD + 1 + block;
1463 :			Data->currentMV = OldData->currentMV + 1 + block;
1464 :			Data->currentQMV = OldData->currentQMV + 1 + block;
1465 :
1466 :			if(Data->qpel) {
1467 :			Data->predMV = get_qpmv2(pMBs, pParam->mb_width, 0, x/2, y/2, block);
1468 :			if (block != 0) i = d_mv_bits( Data->currentQMV->x, Data->currentQMV->y,
1469 :			Data->predMV, Data->iFcode, 0, 0);
1470 :			} else {
1471 :			Data->predMV = get_pmv2(pMBs, pParam->mb_width, 0, x/2, y/2, block);
1472 :			if (block != 0) i = d_mv_bits( Data->currentMV->x, Data->currentMV->y,
1473 :			Data->predMV, Data->iFcode, 0, Data->rrv);
1474 :	Isibaar	3	}
1475 :
1476 :	edgomez	851	(Data->iMinSAD) += (Data->lambda8 i * (*Data->iMinSAD + NEIGH_8X8_BIAS))>>10;
1477 :	Isibaar	3
1478 :	edgomez	851	if (MotionFlags & (PMV_EXTSEARCH8\|PMV_HALFPELREFINE8\|PMV_QUARTERPELREFINE8)) {
1479 :	Isibaar	3
1480 :	syskin	976	if (Data->rrv) i = 16; else i = 8;
1481 :	Isibaar	3
1482 :	syskin	976	Data->RefP[0] = OldData->RefP[0] + i * ((block&1) + Data->iEdgedWidth*(block>>1));
1483 :			Data->RefP[1] = OldData->RefP[1] + i * ((block&1) + Data->iEdgedWidth*(block>>1));
1484 :			Data->RefP[2] = OldData->RefP[2] + i * ((block&1) + Data->iEdgedWidth*(block>>1));
1485 :			Data->RefP[3] = OldData->RefP[3] + i * ((block&1) + Data->iEdgedWidth*(block>>1));
1486 :
1487 :			Data->Cur = OldData->Cur + i * ((block&1) + Data->iEdgedWidth*(block>>1));
1488 :	edgomez	851	Data->qpel_precision = 0;
1489 :	Isibaar	3
1490 :	edgomez	851	get_range(&Data->min_dx, &Data->max_dx, &Data->min_dy, &Data->max_dy, x, y, 8,
1491 :			pParam->width, pParam->height, Data->iFcode - Data->qpel, 0, Data->rrv);
1492 :	Isibaar	3
1493 :	edgomez	851	if (!Data->rrv) CheckCandidate = CheckCandidate8;
1494 :			else CheckCandidate = CheckCandidate16no4v;
1495 :	Isibaar	3
1496 :	edgomez	851	if (MotionFlags & PMV_EXTSEARCH8 && (!(MotionFlags & EXTSEARCH_BITS))) {
1497 :			int32_t temp_sad = *(Data->iMinSAD); // store current MinSAD
1498 :	Isibaar	3
1499 :	edgomez	851	MainSearchFunc *MainSearchPtr;
1500 :			if (MotionFlags & PMV_USESQUARES8) MainSearchPtr = SquareSearch;
1501 :			else if (MotionFlags & PMV_ADVANCEDDIAMOND8) MainSearchPtr = AdvDiamondSearch;
1502 :			else MainSearchPtr = DiamondSearch;
1503 :	Isibaar	3
1504 :	edgomez	851	MainSearchPtr(Data->currentMV->x, Data->currentMV->y, Data, 255);
1505 :	Isibaar	3
1506 :	edgomez	851	if(*(Data->iMinSAD) < temp_sad) {
1507 :			Data->currentQMV->x = 2 * Data->currentMV->x; // update our qpel vector
1508 :			Data->currentQMV->y = 2 * Data->currentMV->y;
1509 :			}
1510 :			}
1511 :	edgomez	195
1512 :	edgomez	851	if (MotionFlags & PMV_HALFPELREFINE8) {
1513 :			int32_t temp_sad = *(Data->iMinSAD); // store current MinSAD
1514 :	edgomez	195
1515 :	edgomez	851	SubpelRefine(Data); // perform halfpel refine of current best vector
1516 :	Isibaar	3
1517 :	edgomez	851	if(*(Data->iMinSAD) < temp_sad) { // we have found a better match
1518 :			Data->currentQMV->x = 2 * Data->currentMV->x; // update our qpel vector
1519 :			Data->currentQMV->y = 2 * Data->currentMV->y;
1520 :			}
1521 :			}
1522 :	Isibaar	3
1523 :	edgomez	851	if (Data->qpel && MotionFlags & PMV_QUARTERPELREFINE8) {
1524 :			Data->qpel_precision = 1;
1525 :			get_range(&Data->min_dx, &Data->max_dx, &Data->min_dy, &Data->max_dy, x, y, 8,
1526 :			pParam->width, pParam->height, Data->iFcode, 1, 0);
1527 :			SubpelRefine(Data);
1528 :			}
1529 :			}
1530 :	edgomez	195
1531 :	edgomez	851	if (Data->rrv) {
1532 :			Data->currentMV->x = RRV_MV_SCALEDOWN(Data->currentMV->x);
1533 :			Data->currentMV->y = RRV_MV_SCALEDOWN(Data->currentMV->y);
1534 :			}
1535 :
1536 :			if(Data->qpel) {
1537 :			pMB->pmvs[block].x = Data->currentQMV->x - Data->predMV.x;
1538 :			pMB->pmvs[block].y = Data->currentQMV->y - Data->predMV.y;
1539 :			pMB->qmvs[block] = *Data->currentQMV;
1540 :	edgomez	195	} else {
1541 :	edgomez	851	pMB->pmvs[block].x = Data->currentMV->x - Data->predMV.x;
1542 :			pMB->pmvs[block].y = Data->currentMV->y - Data->predMV.y;
1543 :	edgomez	78	}
1544 :	edgomez	851
1545 :			pMB->mvs[block] = *Data->currentMV;
1546 :			pMB->sad8[block] = 4 * *Data->iMinSAD;
1547 :	Isibaar	3	}
1548 :
1549 :	edgomez	851	/* motion estimation for B-frames */
1550 :	chl	345
1551 :	edgomez	851	static __inline VECTOR
1552 :			ChoosePred(const MACROBLOCK * const pMB, const uint32_t mode)
1553 :			{
1554 :			/* the stupidiest function ever */
1555 :			return (mode == MODE_FORWARD ? pMB->mvs[0] : pMB->b_mvs[0]);
1556 :			}
1557 :	chl	345
1558 :	edgomez	851	static void __inline
1559 :			PreparePredictionsBF(VECTOR * const pmv, const int x, const int y,
1560 :			const uint32_t iWcount,
1561 :			const MACROBLOCK * const pMB,
1562 :			const uint32_t mode_curr)
1563 :	chl	345	{
1564 :
1565 :	edgomez	851	// [0] is prediction
1566 :			pmv[0].x = EVEN(pmv[0].x); pmv[0].y = EVEN(pmv[0].y);
1567 :	chl	345
1568 :	edgomez	851	pmv[1].x = pmv[1].y = 0; // [1] is zero
1569 :	chl	345
1570 :	edgomez	851	pmv[2] = ChoosePred(pMB, mode_curr);
1571 :			pmv[2].x = EVEN(pmv[2].x); pmv[2].y = EVEN(pmv[2].y);
1572 :	chl	345
1573 :	edgomez	851	if ((y != 0)&&(x != (int)(iWcount+1))) { // [3] top-right neighbour
1574 :			pmv[3] = ChoosePred(pMB+1-iWcount, mode_curr);
1575 :			pmv[3].x = EVEN(pmv[3].x); pmv[3].y = EVEN(pmv[3].y);
1576 :			} else pmv[3].x = pmv[3].y = 0;
1577 :	chl	345
1578 :	edgomez	851	if (y != 0) {
1579 :			pmv[4] = ChoosePred(pMB-iWcount, mode_curr);
1580 :			pmv[4].x = EVEN(pmv[4].x); pmv[4].y = EVEN(pmv[4].y);
1581 :			} else pmv[4].x = pmv[4].y = 0;
1582 :	chl	345
1583 :	edgomez	851	if (x != 0) {
1584 :			pmv[5] = ChoosePred(pMB-1, mode_curr);
1585 :			pmv[5].x = EVEN(pmv[5].x); pmv[5].y = EVEN(pmv[5].y);
1586 :			} else pmv[5].x = pmv[5].y = 0;
1587 :	chl	345
1588 :	edgomez	851	if (x != 0 && y != 0) {
1589 :			pmv[6] = ChoosePred(pMB-1-iWcount, mode_curr);
1590 :			pmv[6].x = EVEN(pmv[6].x); pmv[6].y = EVEN(pmv[6].y);
1591 :			} else pmv[6].x = pmv[6].y = 0;
1592 :			}
1593 :	chl	345
1594 :
1595 :	edgomez	851	/* search backward or forward */
1596 :			static void
1597 :			SearchBF( const IMAGE * const pRef,
1598 :			const uint8_t * const pRefH,
1599 :			const uint8_t * const pRefV,
1600 :			const uint8_t * const pRefHV,
1601 :			const IMAGE * const pCur,
1602 :			const int x, const int y,
1603 :			const uint32_t MotionFlags,
1604 :			const uint32_t iFcode,
1605 :			const MBParam * const pParam,
1606 :			MACROBLOCK * const pMB,
1607 :			const VECTOR * const predMV,
1608 :			int32_t * const best_sad,
1609 :			const int32_t mode_current,
1610 :			SearchData * const Data)
1611 :			{
1612 :	chl	345
1613 :	edgomez	851	int i, iDirection = 255, mask;
1614 :			VECTOR pmv[7];
1615 :			MainSearchFunc *MainSearchPtr;
1616 :			*Data->iMinSAD = MV_MAX_ERROR;
1617 :			Data->iFcode = iFcode;
1618 :			Data->qpel_precision = 0;
1619 :			Data->temp[5] = Data->temp[6] = Data->temp[7] = 256*4096; // reset chroma-sad cache
1620 :	chl	345
1621 :	syskin	976	Data->RefP[0] = pRef->y + (x + Data->iEdgedWidthy) 16;
1622 :			Data->RefP[2] = pRefH + (x + Data->iEdgedWidthy) 16;
1623 :			Data->RefP[1] = pRefV + (x + Data->iEdgedWidthy) 16;
1624 :			Data->RefP[3] = pRefHV + (x + Data->iEdgedWidthy) 16;
1625 :			Data->RefP[4] = pRef->u + (x + y * (Data->iEdgedWidth/2)) * 8;
1626 :			Data->RefP[5] = pRef->v + (x + y * (Data->iEdgedWidth/2)) * 8;
1627 :	chl	345
1628 :	edgomez	851	Data->predMV = *predMV;
1629 :	chl	345
1630 :	edgomez	851	get_range(&Data->min_dx, &Data->max_dx, &Data->min_dy, &Data->max_dy, x, y, 16,
1631 :			pParam->width, pParam->height, iFcode - Data->qpel, 0, 0);
1632 :	chl	345
1633 :	edgomez	851	pmv[0] = Data->predMV;
1634 :			if (Data->qpel) { pmv[0].x /= 2; pmv[0].y /= 2; }
1635 :	chl	345
1636 :	edgomez	851	PreparePredictionsBF(pmv, x, y, pParam->mb_width, pMB, mode_current);
1637 :	chl	345
1638 :	edgomez	851	Data->currentMV->x = Data->currentMV->y = 0;
1639 :			CheckCandidate = CheckCandidate16no4v;
1640 :	chl	345
1641 :	edgomez	851	// main loop. checking all predictions
1642 :			for (i = 0; i < 7; i++) {
1643 :			if (!(mask = make_mask(pmv, i)) ) continue;
1644 :			CheckCandidate16no4v(pmv[i].x, pmv[i].y, mask, &iDirection, Data);
1645 :	chl	345	}
1646 :
1647 :	edgomez	851	if (MotionFlags & PMV_USESQUARES16) MainSearchPtr = SquareSearch;
1648 :			else if (MotionFlags & PMV_ADVANCEDDIAMOND16) MainSearchPtr = AdvDiamondSearch;
1649 :			else MainSearchPtr = DiamondSearch;
1650 :	chl	345
1651 :	edgomez	851	MainSearchPtr(Data->currentMV->x, Data->currentMV->y, Data, iDirection);
1652 :	chl	345
1653 :	edgomez	851	SubpelRefine(Data);
1654 :	chl	345
1655 :	edgomez	851	if (Data->qpel && Data->iMinSAD < best_sad + 300) {
1656 :			Data->currentQMV->x = 2*Data->currentMV->x;
1657 :			Data->currentQMV->y = 2*Data->currentMV->y;
1658 :			Data->qpel_precision = 1;
1659 :			get_range(&Data->min_dx, &Data->max_dx, &Data->min_dy, &Data->max_dy, x, y, 16,
1660 :			pParam->width, pParam->height, iFcode, 1, 0);
1661 :			SubpelRefine(Data);
1662 :			}
1663 :	chl	345
1664 :	edgomez	851	// three bits are needed to code backward mode. four for forward
1665 :	Isibaar	3
1666 :	edgomez	851	if (mode_current == MODE_FORWARD) Data->iMinSAD += 4 Data->lambda16;
1667 :			else Data->iMinSAD += 3 Data->lambda16;
1668 :	edgomez	195
1669 :	edgomez	851	if (Data->iMinSAD < best_sad) {
1670 :			best_sad = Data->iMinSAD;
1671 :			pMB->mode = mode_current;
1672 :			if (Data->qpel) {
1673 :			pMB->pmvs[0].x = Data->currentQMV->x - predMV->x;
1674 :			pMB->pmvs[0].y = Data->currentQMV->y - predMV->y;
1675 :			if (mode_current == MODE_FORWARD)
1676 :			pMB->qmvs[0] = *Data->currentQMV;
1677 :			else
1678 :			pMB->b_qmvs[0] = *Data->currentQMV;
1679 :			} else {
1680 :			pMB->pmvs[0].x = Data->currentMV->x - predMV->x;
1681 :			pMB->pmvs[0].y = Data->currentMV->y - predMV->y;
1682 :			}
1683 :			if (mode_current == MODE_FORWARD) pMB->mvs[0] = *Data->currentMV;
1684 :			else pMB->b_mvs[0] = *Data->currentMV;
1685 :			}
1686 :	edgomez	195
1687 :	edgomez	851	if (mode_current == MODE_FORWARD) (Data->currentMV+2) = Data->currentMV;
1688 :			else (Data->currentMV+1) = Data->currentMV; //we store currmv for interpolate search
1689 :	Isibaar	3	}
1690 :
1691 :	edgomez	851	static void
1692 :			SkipDecisionB(const IMAGE * const pCur,
1693 :			const IMAGE * const f_Ref,
1694 :			const IMAGE * const b_Ref,
1695 :			MACROBLOCK * const pMB,
1696 :			const uint32_t x, const uint32_t y,
1697 :			const SearchData * const Data)
1698 :			{
1699 :			int dx = 0, dy = 0, b_dx = 0, b_dy = 0;
1700 :			int32_t sum;
1701 :			const int div = 1 + Data->qpel;
1702 :			int k;
1703 :			const uint32_t stride = Data->iEdgedWidth/2;
1704 :			//this is not full chroma compensation, only it's fullpel approximation. should work though
1705 :	Isibaar	3
1706 :	edgomez	851	for (k = 0; k < 4; k++) {
1707 :			dy += Data->directmvF[k].y / div;
1708 :	edgomez	963	dx += Data->directmvF[k].x / div;
1709 :			b_dy += Data->directmvB[k].y / div;
1710 :			b_dx += Data->directmvB[k].x / div;
1711 :	edgomez	851	}
1712 :	Isibaar	3
1713 :	edgomez	851	dy = (dy >> 3) + roundtab_76[dy & 0xf];
1714 :			dx = (dx >> 3) + roundtab_76[dx & 0xf];
1715 :			b_dy = (b_dy >> 3) + roundtab_76[b_dy & 0xf];
1716 :			b_dx = (b_dx >> 3) + roundtab_76[b_dx & 0xf];
1717 :	Isibaar	3
1718 :	edgomez	851	sum = sad8bi(pCur->u + 8 * x + 8 * y * stride,
1719 :			f_Ref->u + (y8 + dy/2) stride + x*8 + dx/2,
1720 :			b_Ref->u + (y8 + b_dy/2) stride + x*8 + b_dx/2,
1721 :			stride);
1722 :	Isibaar	3
1723 :	edgomez	851	if (sum >= 2 * MAX_CHROMA_SAD_FOR_SKIP * pMB->quant) return; //no skip
1724 :	Isibaar	3
1725 :	edgomez	851	sum += sad8bi(pCur->v + 8x + 8 y * stride,
1726 :			f_Ref->v + (y8 + dy/2) stride + x*8 + dx/2,
1727 :			b_Ref->v + (y8 + b_dy/2) stride + x*8 + b_dx/2,
1728 :			stride);
1729 :	edgomez	195
1730 :	edgomez	963	if (sum < 2 * MAX_CHROMA_SAD_FOR_SKIP * pMB->quant) {
1731 :			pMB->mode = MODE_DIRECT_NONE_MV; //skipped
1732 :	syskin	976	for (k = 0; k < 4; k++) {
1733 :	edgomez	963	pMB->qmvs[k] = pMB->mvs[k];
1734 :			pMB->b_qmvs[k] = pMB->b_mvs[k];
1735 :			}
1736 :			}
1737 :	edgomez	851	}
1738 :	Isibaar	3
1739 :	edgomez	851	static __inline uint32_t
1740 :			SearchDirect(const IMAGE * const f_Ref,
1741 :			const uint8_t * const f_RefH,
1742 :			const uint8_t * const f_RefV,
1743 :			const uint8_t * const f_RefHV,
1744 :			const IMAGE * const b_Ref,
1745 :			const uint8_t * const b_RefH,
1746 :			const uint8_t * const b_RefV,
1747 :			const uint8_t * const b_RefHV,
1748 :			const IMAGE * const pCur,
1749 :			const int x, const int y,
1750 :			const uint32_t MotionFlags,
1751 :			const int32_t TRB, const int32_t TRD,
1752 :			const MBParam * const pParam,
1753 :			MACROBLOCK * const pMB,
1754 :			const MACROBLOCK * const b_mb,
1755 :			int32_t * const best_sad,
1756 :			SearchData * const Data)
1757 :	Isibaar	3
1758 :	edgomez	851	{
1759 :			int32_t skip_sad;
1760 :			int k = (x + Data->iEdgedWidthy) 16;
1761 :			MainSearchFunc *MainSearchPtr;
1762 :	Isibaar	3
1763 :	edgomez	851	Data->iMinSAD = 2564096;
1764 :	syskin	976	Data->RefP[0] = f_Ref->y + k;
1765 :			Data->RefP[2] = f_RefH + k;
1766 :			Data->RefP[1] = f_RefV + k;
1767 :			Data->RefP[3] = f_RefHV + k;
1768 :			Data->b_RefP[0] = b_Ref->y + k;
1769 :			Data->b_RefP[2] = b_RefH + k;
1770 :			Data->b_RefP[1] = b_RefV + k;
1771 :			Data->b_RefP[3] = b_RefHV + k;
1772 :			Data->RefP[4] = f_Ref->u + (x + (Data->iEdgedWidth/2) * y) * 8;
1773 :			Data->RefP[5] = f_Ref->v + (x + (Data->iEdgedWidth/2) * y) * 8;
1774 :			Data->b_RefP[4] = b_Ref->u + (x + (Data->iEdgedWidth/2) * y) * 8;
1775 :			Data->b_RefP[5] = b_Ref->v + (x + (Data->iEdgedWidth/2) * y) * 8;
1776 :	edgomez	195
1777 :	edgomez	851	k = Data->qpel ? 4 : 2;
1778 :			Data->max_dx = k * (pParam->width - x * 16);
1779 :			Data->max_dy = k * (pParam->height - y * 16);
1780 :			Data->min_dx = -k * (16 + x * 16);
1781 :			Data->min_dy = -k * (16 + y * 16);
1782 :	chl	181
1783 :	edgomez	851	Data->referencemv = Data->qpel ? b_mb->qmvs : b_mb->mvs;
1784 :			Data->qpel_precision = 0;
1785 :	edgomez	170
1786 :	edgomez	851	for (k = 0; k < 4; k++) {
1787 :			pMB->mvs[k].x = Data->directmvF[k].x = ((TRB * Data->referencemv[k].x) / TRD);
1788 :			pMB->b_mvs[k].x = Data->directmvB[k].x = ((TRB - TRD) * Data->referencemv[k].x) / TRD;
1789 :			pMB->mvs[k].y = Data->directmvF[k].y = ((TRB * Data->referencemv[k].y) / TRD);
1790 :			pMB->b_mvs[k].y = Data->directmvB[k].y = ((TRB - TRD) * Data->referencemv[k].y) / TRD;
1791 :	Isibaar	3
1792 :	edgomez	851	if ( (pMB->b_mvs[k].x > Data->max_dx) \| (pMB->b_mvs[k].x < Data->min_dx)
1793 :			\| (pMB->b_mvs[k].y > Data->max_dy) \| (pMB->b_mvs[k].y < Data->min_dy) ) {
1794 :
1795 :			best_sad = 2564096; // in that case, we won't use direct mode
1796 :			pMB->mode = MODE_DIRECT; // just to make sure it doesn't say "MODE_DIRECT_NONE_MV"
1797 :			pMB->b_mvs[0].x = pMB->b_mvs[0].y = 0;
1798 :			return 256*4096;
1799 :			}
1800 :			if (b_mb->mode != MODE_INTER4V) {
1801 :			pMB->mvs[1] = pMB->mvs[2] = pMB->mvs[3] = pMB->mvs[0];
1802 :			pMB->b_mvs[1] = pMB->b_mvs[2] = pMB->b_mvs[3] = pMB->b_mvs[0];
1803 :			Data->directmvF[1] = Data->directmvF[2] = Data->directmvF[3] = Data->directmvF[0];
1804 :			Data->directmvB[1] = Data->directmvB[2] = Data->directmvB[3] = Data->directmvB[0];
1805 :			break;
1806 :			}
1807 :	edgomez	195	}
1808 :	Isibaar	3
1809 :	edgomez	851	CheckCandidate = b_mb->mode == MODE_INTER4V ? CheckCandidateDirect : CheckCandidateDirectno4v;
1810 :	Isibaar	3
1811 :	edgomez	851	CheckCandidate(0, 0, 255, &k, Data);
1812 :	edgomez	195
1813 :	edgomez	851	// initial (fast) skip decision
1814 :			if (Data->iMinSAD < pMB->quant INITIAL_SKIP_THRESH * (2 + Data->chroma?1:0)) {
1815 :			//possible skip
1816 :			if (Data->chroma) {
1817 :			pMB->mode = MODE_DIRECT_NONE_MV;
1818 :			return *Data->iMinSAD; // skip.
1819 :			} else {
1820 :			SkipDecisionB(pCur, f_Ref, b_Ref, pMB, x, y, Data);
1821 :			if (pMB->mode == MODE_DIRECT_NONE_MV) return *Data->iMinSAD; // skip.
1822 :			}
1823 :	Isibaar	3	}
1824 :
1825 :	syskin	904	*Data->iMinSAD += Data->lambda16;
1826 :	edgomez	851	skip_sad = *Data->iMinSAD;
1827 :	edgomez	195
1828 :	edgomez	851	// DIRECT MODE DELTA VECTOR SEARCH.
1829 :			// This has to be made more effective, but at the moment I'm happy it's running at all
1830 :	Isibaar	3
1831 :	edgomez	851	if (MotionFlags & PMV_USESQUARES16) MainSearchPtr = SquareSearch;
1832 :			else if (MotionFlags & PMV_ADVANCEDDIAMOND16) MainSearchPtr = AdvDiamondSearch;
1833 :			else MainSearchPtr = DiamondSearch;
1834 :	Isibaar	3
1835 :	edgomez	851	MainSearchPtr(0, 0, Data, 255);
1836 :	Isibaar	3
1837 :	edgomez	851	SubpelRefine(Data);
1838 :	chl	181
1839 :	edgomez	851	best_sad = Data->iMinSAD;
1840 :	chl	181
1841 :	edgomez	851	if (Data->qpel \|\| b_mb->mode == MODE_INTER4V) pMB->mode = MODE_DIRECT;
1842 :			else pMB->mode = MODE_DIRECT_NO4V; //for faster compensation
1843 :	chl	181
1844 :	edgomez	851	pMB->pmvs[3] = *Data->currentMV;
1845 :	edgomez	195
1846 :	edgomez	851	for (k = 0; k < 4; k++) {
1847 :			pMB->mvs[k].x = Data->directmvF[k].x + Data->currentMV->x;
1848 :			pMB->b_mvs[k].x = ( (Data->currentMV->x == 0)
1849 :			? Data->directmvB[k].x
1850 :			:pMB->mvs[k].x - Data->referencemv[k].x);
1851 :			pMB->mvs[k].y = (Data->directmvF[k].y + Data->currentMV->y);
1852 :			pMB->b_mvs[k].y = ((Data->currentMV->y == 0)
1853 :			? Data->directmvB[k].y
1854 :			: pMB->mvs[k].y - Data->referencemv[k].y);
1855 :			if (Data->qpel) {
1856 :			pMB->qmvs[k].x = pMB->mvs[k].x; pMB->mvs[k].x /= 2;
1857 :			pMB->b_qmvs[k].x = pMB->b_mvs[k].x; pMB->b_mvs[k].x /= 2;
1858 :			pMB->qmvs[k].y = pMB->mvs[k].y; pMB->mvs[k].y /= 2;
1859 :			pMB->b_qmvs[k].y = pMB->b_mvs[k].y; pMB->b_mvs[k].y /= 2;
1860 :			}
1861 :	edgomez	195
1862 :	edgomez	851	if (b_mb->mode != MODE_INTER4V) {
1863 :			pMB->mvs[3] = pMB->mvs[2] = pMB->mvs[1] = pMB->mvs[0];
1864 :			pMB->b_mvs[3] = pMB->b_mvs[2] = pMB->b_mvs[1] = pMB->b_mvs[0];
1865 :			pMB->qmvs[3] = pMB->qmvs[2] = pMB->qmvs[1] = pMB->qmvs[0];
1866 :			pMB->b_qmvs[3] = pMB->b_qmvs[2] = pMB->b_qmvs[1] = pMB->b_qmvs[0];
1867 :			break;
1868 :			}
1869 :	edgomez	78	}
1870 :	edgomez	851	return skip_sad;
1871 :			}
1872 :	Isibaar	3
1873 :	edgomez	851	static void
1874 :			SearchInterpolate(const IMAGE * const f_Ref,
1875 :			const uint8_t * const f_RefH,
1876 :			const uint8_t * const f_RefV,
1877 :			const uint8_t * const f_RefHV,
1878 :			const IMAGE * const b_Ref,
1879 :			const uint8_t * const b_RefH,
1880 :			const uint8_t * const b_RefV,
1881 :			const uint8_t * const b_RefHV,
1882 :			const IMAGE * const pCur,
1883 :			const int x, const int y,
1884 :			const uint32_t fcode,
1885 :			const uint32_t bcode,
1886 :			const uint32_t MotionFlags,
1887 :			const MBParam * const pParam,
1888 :			const VECTOR * const f_predMV,
1889 :			const VECTOR * const b_predMV,
1890 :			MACROBLOCK * const pMB,
1891 :			int32_t * const best_sad,
1892 :			SearchData * const fData)
1893 :	chl	96
1894 :	edgomez	851	{
1895 :	chl	169
1896 :	edgomez	851	int iDirection, i, j;
1897 :			SearchData bData;
1898 :	chl	169
1899 :	edgomez	851	fData->qpel_precision = 0;
1900 :			memcpy(&bData, fData, sizeof(SearchData)); //quick copy of common data
1901 :			fData->iMinSAD = 4096256;
1902 :			bData.currentMV++; bData.currentQMV++;
1903 :			fData->iFcode = bData.bFcode = fcode; fData->bFcode = bData.iFcode = bcode;
1904 :	chl	169
1905 :	edgomez	851	i = (x + y * fData->iEdgedWidth) * 16;
1906 :	chl	169
1907 :	syskin	976	bData.b_RefP[0] = fData->RefP[0] = f_Ref->y + i;
1908 :			bData.b_RefP[2] = fData->RefP[2] = f_RefH + i;
1909 :			bData.b_RefP[1] = fData->RefP[1] = f_RefV + i;
1910 :			bData.b_RefP[3] = fData->RefP[3] = f_RefHV + i;
1911 :			bData.RefP[0] = fData->b_RefP[0] = b_Ref->y + i;
1912 :			bData.RefP[2] = fData->b_RefP[2] = b_RefH + i;
1913 :			bData.RefP[1] = fData->b_RefP[1] = b_RefV + i;
1914 :			bData.RefP[3] = fData->b_RefP[3] = b_RefHV + i;
1915 :			bData.b_RefP[4] = fData->RefP[4] = f_Ref->u + (x + (fData->iEdgedWidth/2) * y) * 8;
1916 :			bData.b_RefP[5] = fData->RefP[5] = f_Ref->v + (x + (fData->iEdgedWidth/2) * y) * 8;
1917 :			bData.RefP[4] = fData->b_RefP[4] = b_Ref->u + (x + (fData->iEdgedWidth/2) * y) * 8;
1918 :			bData.RefP[5] = fData->b_RefP[5] = b_Ref->v + (x + (fData->iEdgedWidth/2) * y) * 8;
1919 :	chl	169
1920 :	edgomez	851	bData.bpredMV = fData->predMV = *f_predMV;
1921 :			fData->bpredMV = bData.predMV = *b_predMV;
1922 :			fData->currentMV[0] = fData->currentMV[2];
1923 :	Isibaar	3
1924 :	edgomez	851	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);
1925 :			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);
1926 :	Isibaar	3
1927 :	edgomez	851	if (fData->currentMV[0].x > fData->max_dx) fData->currentMV[0].x = fData->max_dx;
1928 :			if (fData->currentMV[0].x < fData->min_dx) fData->currentMV[0].x = fData->min_dx;
1929 :			if (fData->currentMV[0].y > fData->max_dy) fData->currentMV[0].y = fData->max_dy;
1930 :			if (fData->currentMV[0].y < fData->min_dy) fData->currentMV[0].y = fData->min_dy;
1931 :	chl	169
1932 :	edgomez	851	if (fData->currentMV[1].x > bData.max_dx) fData->currentMV[1].x = bData.max_dx;
1933 :			if (fData->currentMV[1].x < bData.min_dx) fData->currentMV[1].x = bData.min_dx;
1934 :			if (fData->currentMV[1].y > bData.max_dy) fData->currentMV[1].y = bData.max_dy;
1935 :			if (fData->currentMV[1].y < bData.min_dy) fData->currentMV[1].y = bData.min_dy;
1936 :	Isibaar	3
1937 :	edgomez	851	CheckCandidateInt(fData->currentMV[0].x, fData->currentMV[0].y, 255, &iDirection, fData);
1938 :	chl	169
1939 :	edgomez	851	//diamond
1940 :			do {
1941 :			iDirection = 255;
1942 :			// forward MV moves
1943 :			i = fData->currentMV[0].x; j = fData->currentMV[0].y;
1944 :	chl	169
1945 :	edgomez	851	CheckCandidateInt(i + 1, j, 0, &iDirection, fData);
1946 :			CheckCandidateInt(i, j + 1, 0, &iDirection, fData);
1947 :			CheckCandidateInt(i - 1, j, 0, &iDirection, fData);
1948 :			CheckCandidateInt(i, j - 1, 0, &iDirection, fData);
1949 :	edgomez	195
1950 :	edgomez	851	// backward MV moves
1951 :			i = fData->currentMV[1].x; j = fData->currentMV[1].y;
1952 :			fData->currentMV[2] = fData->currentMV[0];
1953 :			CheckCandidateInt(i + 1, j, 0, &iDirection, &bData);
1954 :			CheckCandidateInt(i, j + 1, 0, &iDirection, &bData);
1955 :			CheckCandidateInt(i - 1, j, 0, &iDirection, &bData);
1956 :			CheckCandidateInt(i, j - 1, 0, &iDirection, &bData);
1957 :	Isibaar	3
1958 :	edgomez	851	} while (!(iDirection));
1959 :	chl	140
1960 :	edgomez	851	//qpel refinement
1961 :			if (fData->qpel) {
1962 :			if (fData->iMinSAD > best_sad + 500) return;
1963 :			CheckCandidate = CheckCandidateInt;
1964 :			fData->qpel_precision = bData.qpel_precision = 1;
1965 :			get_range(&fData->min_dx, &fData->max_dx, &fData->min_dy, &fData->max_dy, x, y, 16, pParam->width, pParam->height, fcode, 1, 0);
1966 :			get_range(&bData.min_dx, &bData.max_dx, &bData.min_dy, &bData.max_dy, x, y, 16, pParam->width, pParam->height, bcode, 1, 0);
1967 :			fData->currentQMV[2].x = fData->currentQMV[0].x = 2 * fData->currentMV[0].x;
1968 :			fData->currentQMV[2].y = fData->currentQMV[0].y = 2 * fData->currentMV[0].y;
1969 :			fData->currentQMV[1].x = 2 * fData->currentMV[1].x;
1970 :			fData->currentQMV[1].y = 2 * fData->currentMV[1].y;
1971 :			SubpelRefine(fData);
1972 :			if (fData->iMinSAD > best_sad + 300) return;
1973 :			fData->currentQMV[2] = fData->currentQMV[0];
1974 :			SubpelRefine(&bData);
1975 :			}
1976 :	chl	140
1977 :	edgomez	851	fData->iMinSAD += (2+3) fData->lambda16; // two bits are needed to code interpolate mode.
1978 :	Isibaar	3
1979 :	edgomez	851	if (fData->iMinSAD < best_sad) {
1980 :			best_sad = fData->iMinSAD;
1981 :			pMB->mvs[0] = fData->currentMV[0];
1982 :			pMB->b_mvs[0] = fData->currentMV[1];
1983 :			pMB->mode = MODE_INTERPOLATE;
1984 :			if (fData->qpel) {
1985 :			pMB->qmvs[0] = fData->currentQMV[0];
1986 :			pMB->b_qmvs[0] = fData->currentQMV[1];
1987 :			pMB->pmvs[1].x = pMB->qmvs[0].x - f_predMV->x;
1988 :			pMB->pmvs[1].y = pMB->qmvs[0].y - f_predMV->y;
1989 :			pMB->pmvs[0].x = pMB->b_qmvs[0].x - b_predMV->x;
1990 :			pMB->pmvs[0].y = pMB->b_qmvs[0].y - b_predMV->y;
1991 :			} else {
1992 :			pMB->pmvs[1].x = pMB->mvs[0].x - f_predMV->x;
1993 :			pMB->pmvs[1].y = pMB->mvs[0].y - f_predMV->y;
1994 :			pMB->pmvs[0].x = pMB->b_mvs[0].x - b_predMV->x;
1995 :			pMB->pmvs[0].y = pMB->b_mvs[0].y - b_predMV->y;
1996 :			}
1997 :	edgomez	78	}
1998 :	edgomez	851	}
1999 :	Isibaar	3
2000 :	edgomez	851	void
2001 :			MotionEstimationBVOP(MBParam * const pParam,
2002 :	syskin	976	FRAMEINFO * const frame,
2003 :			const int32_t time_bp,
2004 :			const int32_t time_pp,
2005 :			// forward (past) reference
2006 :			const MACROBLOCK * const f_mbs,
2007 :			const IMAGE * const f_ref,
2008 :			const IMAGE * const f_refH,
2009 :			const IMAGE * const f_refV,
2010 :			const IMAGE * const f_refHV,
2011 :			// backward (future) reference
2012 :			const FRAMEINFO * const b_reference,
2013 :			const IMAGE * const b_ref,
2014 :			const IMAGE * const b_refH,
2015 :			const IMAGE * const b_refV,
2016 :			const IMAGE * const b_refHV)
2017 :	edgomez	851	{
2018 :			uint32_t i, j;
2019 :			int32_t best_sad;
2020 :			uint32_t skip_sad;
2021 :			int f_count = 0, b_count = 0, i_count = 0, d_count = 0, n_count = 0;
2022 :			const MACROBLOCK * const b_mbs = b_reference->mbs;
2023 :	Isibaar	3
2024 :	edgomez	851	VECTOR f_predMV, b_predMV; /* there is no prediction for direct mode*/
2025 :	Isibaar	3
2026 :	edgomez	851	const int32_t TRB = time_pp - time_bp;
2027 :			const int32_t TRD = time_pp;
2028 :	edgomez	195
2029 :	edgomez	851	// some pre-inintialized data for the rest of the search
2030 :	Isibaar	3
2031 :	edgomez	851	SearchData Data;
2032 :			int32_t iMinSAD;
2033 :			VECTOR currentMV[3];
2034 :			VECTOR currentQMV[3];
2035 :			int32_t temp[8];
2036 :			memset(&Data, 0, sizeof(SearchData));
2037 :			Data.iEdgedWidth = pParam->edged_width;
2038 :			Data.currentMV = currentMV; Data.currentQMV = currentQMV;
2039 :			Data.iMinSAD = &iMinSAD;
2040 :			Data.lambda16 = lambda_vec16[frame->quant];
2041 :			Data.qpel = pParam->m_quarterpel;
2042 :			Data.rounding = 0;
2043 :			Data.chroma = frame->motion_flags & PMV_CHROMA8;
2044 :			Data.temp = temp;
2045 :	Isibaar	3
2046 :	edgomez	851	Data.RefQ = f_refV->u; // a good place, also used in MC (for similar purpose)
2047 :			// note: i==horizontal, j==vertical
2048 :			for (j = 0; j < pParam->mb_height; j++) {
2049 :	edgomez	195
2050 :	edgomez	851	f_predMV = b_predMV = zeroMV; /* prediction is reset at left boundary */
2051 :	Isibaar	3
2052 :	edgomez	851	for (i = 0; i < pParam->mb_width; i++) {
2053 :			MACROBLOCK * const pMB = frame->mbs + i + j * pParam->mb_width;
2054 :			const MACROBLOCK * const b_mb = b_mbs + i + j * pParam->mb_width;
2055 :	edgomez	195
2056 :	edgomez	851	/* special case, if collocated block is SKIPed in P-VOP: encoding is forward (0,0), cpb=0 without further ado */
2057 :			if (b_reference->coding_type != S_VOP)
2058 :			if (b_mb->mode == MODE_NOT_CODED) {
2059 :			pMB->mode = MODE_NOT_CODED;
2060 :			continue;
2061 :			}
2062 :	Isibaar	3
2063 :	edgomez	851	Data.Cur = frame->image.y + (j * Data.iEdgedWidth + i) * 16;
2064 :			Data.CurU = frame->image.u + (j * Data.iEdgedWidth/2 + i) * 8;
2065 :			Data.CurV = frame->image.v + (j * Data.iEdgedWidth/2 + i) * 8;
2066 :			pMB->quant = frame->quant;
2067 :	Isibaar	3
2068 :	edgomez	851	/* direct search comes first, because it (1) checks for SKIP-mode
2069 :			and (2) sets very good predictions for forward and backward search */
2070 :			skip_sad = SearchDirect(f_ref, f_refH->y, f_refV->y, f_refHV->y,
2071 :			b_ref, b_refH->y, b_refV->y, b_refHV->y,
2072 :			&frame->image,
2073 :			i, j,
2074 :			frame->motion_flags,
2075 :			TRB, TRD,
2076 :			pParam,
2077 :			pMB, b_mb,
2078 :			&best_sad,
2079 :			&Data);
2080 :	Isibaar	3
2081 :	edgomez	851	if (pMB->mode == MODE_DIRECT_NONE_MV) { n_count++; continue; }
2082 :	edgomez	195
2083 :	edgomez	851	// forward search
2084 :			SearchBF(f_ref, f_refH->y, f_refV->y, f_refHV->y,
2085 :			&frame->image, i, j,
2086 :			frame->motion_flags,
2087 :			frame->fcode, pParam,
2088 :			pMB, &f_predMV, &best_sad,
2089 :			MODE_FORWARD, &Data);
2090 :	edgomez	195
2091 :	edgomez	851	// backward search
2092 :			SearchBF(b_ref, b_refH->y, b_refV->y, b_refHV->y,
2093 :			&frame->image, i, j,
2094 :			frame->motion_flags,
2095 :			frame->bcode, pParam,
2096 :			pMB, &b_predMV, &best_sad,
2097 :			MODE_BACKWARD, &Data);
2098 :
2099 :			// interpolate search comes last, because it uses data from forward and backward as prediction
2100 :			SearchInterpolate(f_ref, f_refH->y, f_refV->y, f_refHV->y,
2101 :			b_ref, b_refH->y, b_refV->y, b_refHV->y,
2102 :			&frame->image,
2103 :			i, j,
2104 :			frame->fcode, frame->bcode,
2105 :			frame->motion_flags,
2106 :			pParam,
2107 :			&f_predMV, &b_predMV,
2108 :			pMB, &best_sad,
2109 :			&Data);
2110 :
2111 :			// final skip decision
2112 :			if ( (skip_sad < frame->quant * MAX_SAD00_FOR_SKIP * 2)
2113 :			&& ((100*best_sad)/(skip_sad+1) > FINAL_SKIP_THRESH) )
2114 :			SkipDecisionB(&frame->image, f_ref, b_ref, pMB, i, j, &Data);
2115 :
2116 :			switch (pMB->mode) {
2117 :			case MODE_FORWARD:
2118 :			f_count++;
2119 :			f_predMV = Data.qpel ? pMB->qmvs[0] : pMB->mvs[0];
2120 :			break;
2121 :			case MODE_BACKWARD:
2122 :			b_count++;
2123 :			b_predMV = Data.qpel ? pMB->b_qmvs[0] : pMB->b_mvs[0];
2124 :			break;
2125 :			case MODE_INTERPOLATE:
2126 :			i_count++;
2127 :			f_predMV = Data.qpel ? pMB->qmvs[0] : pMB->mvs[0];
2128 :			b_predMV = Data.qpel ? pMB->b_qmvs[0] : pMB->b_mvs[0];
2129 :			break;
2130 :			case MODE_DIRECT:
2131 :			case MODE_DIRECT_NO4V:
2132 :			d_count++;
2133 :			default:
2134 :			break;
2135 :			}
2136 :			}
2137 :			}
2138 :	Isibaar	3	}
2139 :	chl	96
2140 :	edgomez	851	static __inline void
2141 :			MEanalyzeMB ( const uint8_t * const pRef,
2142 :			const uint8_t * const pCur,
2143 :			const int x,
2144 :			const int y,
2145 :			const MBParam * const pParam,
2146 :			MACROBLOCK * const pMBs,
2147 :			SearchData * const Data)
2148 :	chl	96	{
2149 :
2150 :	edgomez	851	int i, mask;
2151 :			VECTOR pmv[3];
2152 :	syskin	904	MACROBLOCK * const pMB = &pMBs[x + y * pParam->mb_width];
2153 :	chl	96
2154 :	edgomez	851	for (i = 0; i < 5; i++) Data->iMinSAD[i] = MV_MAX_ERROR;
2155 :	chl	96
2156 :	edgomez	851	//median is only used as prediction. it doesn't have to be real
2157 :			if (x == 1 && y == 1) Data->predMV.x = Data->predMV.y = 0;
2158 :			else
2159 :			if (x == 1) //left macroblock does not have any vector now
2160 :			Data->predMV = (pMB - pParam->mb_width)->mvs[0]; // top instead of median
2161 :			else if (y == 1) // top macroblock doesn't have it's vector
2162 :			Data->predMV = (pMB - 1)->mvs[0]; // left instead of median
2163 :			else Data->predMV = get_pmv2(pMBs, pParam->mb_width, 0, x, y, 0); //else median
2164 :	edgomez	195
2165 :	edgomez	851	get_range(&Data->min_dx, &Data->max_dx, &Data->min_dy, &Data->max_dy, x, y, 16,
2166 :	syskin	904	pParam->width, pParam->height, Data->iFcode - pParam->m_quarterpel, 0, 0);
2167 :	edgomez	195
2168 :	edgomez	851	Data->Cur = pCur + (x + y * pParam->edged_width) * 16;
2169 :	syskin	976	Data->RefP[0] = pRef + (x + y * pParam->edged_width) * 16;
2170 :	chl	96
2171 :	edgomez	851	pmv[1].x = EVEN(pMB->mvs[0].x);
2172 :			pmv[1].y = EVEN(pMB->mvs[0].y);
2173 :			pmv[2].x = EVEN(Data->predMV.x);
2174 :			pmv[2].y = EVEN(Data->predMV.y);
2175 :			pmv[0].x = pmv[0].y = 0;
2176 :	edgomez	195
2177 :	edgomez	851	CheckCandidate32I(0, 0, 255, &i, Data);
2178 :	edgomez	195
2179 :	syskin	904	if (Data->iMinSAD > 4 MAX_SAD00_FOR_SKIP) {
2180 :	chl	96
2181 :	edgomez	851	if (!(mask = make_mask(pmv, 1)))
2182 :			CheckCandidate32I(pmv[1].x, pmv[1].y, mask, &i, Data);
2183 :			if (!(mask = make_mask(pmv, 2)))
2184 :			CheckCandidate32I(pmv[2].x, pmv[2].y, mask, &i, Data);
2185 :	chl	96
2186 :	syskin	904	if (Data->iMinSAD > 4 MAX_SAD00_FOR_SKIP) // diamond only if needed
2187 :	edgomez	851	DiamondSearch(Data->currentMV->x, Data->currentMV->y, Data, i);
2188 :	syskin	904	}
2189 :	edgomez	851
2190 :	syskin	904	for (i = 0; i < 4; i++) {
2191 :			MACROBLOCK * MB = &pMBs[x + (i&1) + (y+(i>>1)) * pParam->mb_width];
2192 :			MB->mvs[0] = MB->mvs[1] = MB->mvs[2] = MB->mvs[3] = Data->currentMV[i];
2193 :			MB->mode = MODE_INTER;
2194 :			MB->sad16 = Data->iMinSAD[i+1];
2195 :	chl	96	}
2196 :	edgomez	851	}
2197 :	chl	96
2198 :	syskin	1001	#define INTRA_THRESH 1800
2199 :	syskin	985	#define INTER_THRESH 1200
2200 :	chl	96
2201 :	edgomez	851	int
2202 :			MEanalysis( const IMAGE * const pRef,
2203 :	syskin	904	const FRAMEINFO * const Current,
2204 :			const MBParam * const pParam,
2205 :			const int maxIntra, //maximum number if non-I frames
2206 :			const int intraCount, //number of non-I frames after last I frame; 0 if we force P/B frame
2207 :			const int bCount, // number of B frames in a row
2208 :			const int b_thresh)
2209 :	edgomez	851	{
2210 :			uint32_t x, y, intra = 0;
2211 :			int sSAD = 0;
2212 :			MACROBLOCK * const pMBs = Current->mbs;
2213 :			const IMAGE * const pCurrent = &Current->image;
2214 :	syskin	904	int IntraThresh = INTRA_THRESH, InterThresh = INTER_THRESH + 10*b_thresh;
2215 :			int s = 0, blocks = 0;
2216 :	chl	96
2217 :	edgomez	851	int32_t iMinSAD[5], temp[5];
2218 :			VECTOR currentMV[5];
2219 :			SearchData Data;
2220 :			Data.iEdgedWidth = pParam->edged_width;
2221 :			Data.currentMV = currentMV;
2222 :			Data.iMinSAD = iMinSAD;
2223 :			Data.iFcode = Current->fcode;
2224 :			Data.temp = temp;
2225 :			CheckCandidate = CheckCandidate32I;
2226 :	chl	96
2227 :	edgomez	851	if (intraCount != 0 && intraCount < 10) // we're right after an I frame
2228 :	syskin	1001	IntraThresh += 15 * (intraCount - 10) * (intraCount - 10);
2229 :	edgomez	851	else
2230 :			if ( 5*(maxIntra - intraCount) < maxIntra) // we're close to maximum. 2 sec when max is 10 sec
2231 :	syskin	1001	IntraThresh -= (IntraThresh * (maxIntra - 8*(maxIntra - intraCount)))/maxIntra;
2232 :	chl	96
2233 :	syskin	904	InterThresh -= (350 - 8b_thresh) bCount;
2234 :			if (InterThresh < 300 + 5b_thresh) InterThresh = 300 + 5b_thresh;
2235 :	chl	326
2236 :	edgomez	851	if (sadInit) (*sadInit) ();
2237 :	chl	96
2238 :	edgomez	851	for (y = 1; y < pParam->mb_height-1; y += 2) {
2239 :			for (x = 1; x < pParam->mb_width-1; x += 2) {
2240 :			int i;
2241 :	syskin	904	blocks += 4;
2242 :	edgomez	195
2243 :	edgomez	851	if (bCount == 0) pMBs[x + y * pParam->mb_width].mvs[0] = zeroMV;
2244 :	syskin	904	else { //extrapolation of the vector found for last frame
2245 :	syskin	976	pMBs[x + y * pParam->mb_width].mvs[0].x =
2246 :	syskin	904	(pMBs[x + y * pParam->mb_width].mvs[0].x * (bCount+1) ) / bCount;
2247 :	syskin	976	pMBs[x + y * pParam->mb_width].mvs[0].y =
2248 :	syskin	904	(pMBs[x + y * pParam->mb_width].mvs[0].y * (bCount+1) ) / bCount;
2249 :			}
2250 :	edgomez	195
2251 :	edgomez	851	MEanalyzeMB(pRef->y, pCurrent->y, x, y, pParam, pMBs, &Data);
2252 :	edgomez	195
2253 :	edgomez	851	for (i = 0; i < 4; i++) {
2254 :			int dev;
2255 :			MACROBLOCK pMB = &pMBs[x+(i&1) + (y+(i>>1)) pParam->mb_width];
2256 :			if (pMB->sad16 > IntraThresh) {
2257 :			dev = dev16(pCurrent->y + (x + (i&1) + (y + (i>>1)) * pParam->edged_width) * 16,
2258 :			pParam->edged_width);
2259 :			if (dev + IntraThresh < pMB->sad16) {
2260 :			pMB->mode = MODE_INTRA;
2261 :	syskin	904	if (++intra > ((pParam->mb_height-2)*(pParam->mb_width-2))/2) return I_VOP;
2262 :	edgomez	851	}
2263 :			}
2264 :	syskin	904	if (pMB->mvs[0].x == 0 && pMB->mvs[0].y == 0) s++;
2265 :
2266 :	edgomez	851	sSAD += pMB->sad16;
2267 :			}
2268 :			}
2269 :	edgomez	195	}
2270 :	syskin	904
2271 :			sSAD /= blocks;
2272 :			s = (10*s) / blocks;
2273 :
2274 :	syskin	992	if (s > 4) sSAD += (s - 2) * (60 - 2*b_thresh); //static block - looks bad when in bframe...
2275 :	syskin	904
2276 :	edgomez	851	if (sSAD > InterThresh ) return P_VOP;
2277 :			emms();
2278 :			return B_VOP;
2279 :			}
2280 :	chl	96
2281 :
2282 :	edgomez	851	static WARPPOINTS
2283 :			GlobalMotionEst(const MACROBLOCK * const pMBs,
2284 :			const MBParam * const pParam,
2285 :			const FRAMEINFO * const current,
2286 :			const FRAMEINFO * const reference,
2287 :			const IMAGE * const pRefH,
2288 :			const IMAGE * const pRefV,
2289 :			const IMAGE * const pRefHV )
2290 :			{
2291 :	chl	96
2292 :	edgomez	851	const int deltax=8; // upper bound for difference between a MV and it's neighbour MVs
2293 :			const int deltay=8;
2294 :			const int grad=512; // lower bound for deviation in MB
2295 :	chl	96
2296 :	edgomez	851	WARPPOINTS gmc;
2297 :	chl	96
2298 :	edgomez	851	uint32_t mx, my;
2299 :	chl	96
2300 :	edgomez	851	int MBh = pParam->mb_height;
2301 :			int MBw = pParam->mb_width;
2302 :	chl	96
2303 :	edgomez	851	int MBmask= calloc(MBhMBw,sizeof(int));
2304 :			double DtimesF[4] = { 0.,0., 0., 0. };
2305 :			double sol[4] = { 0., 0., 0., 0. };
2306 :			double a,b,c,n,denom;
2307 :			double meanx,meany;
2308 :			int num,oldnum;
2309 :	edgomez	195
2310 :	syskin	976	if (!MBmask) { fprintf(stderr,"Mem error\n");
2311 :			gmc.duv[0].x= gmc.duv[0].y =
2312 :			gmc.duv[1].x= gmc.duv[1].y =
2313 :	chl	871	gmc.duv[2].x= gmc.duv[2].y = 0;
2314 :			return gmc; }
2315 :	edgomez	195
2316 :	edgomez	851	// filter mask of all blocks
2317 :
2318 :	edgomez	876	for (my = 1; my < (uint32_t)MBh-1; my++)
2319 :			for (mx = 1; mx < (uint32_t)MBw-1; mx++)
2320 :	edgomez	851	{
2321 :			const int mbnum = mx + my * MBw;
2322 :			const MACROBLOCK *pMB = &pMBs[mbnum];
2323 :			const VECTOR mv = pMB->mvs[0];
2324 :
2325 :			if (pMB->mode == MODE_INTRA \|\| pMB->mode == MODE_NOT_CODED)
2326 :			continue;
2327 :
2328 :	syskin	985	if ( ( (abs(mv.x - (pMB-1)->mvs[0].x) < deltax) && (abs(mv.y - (pMB-1)->mvs[0].y) < deltay) )
2329 :			&& ( (abs(mv.x - (pMB+1)->mvs[0].x) < deltax) && (abs(mv.y - (pMB+1)->mvs[0].y) < deltay) )
2330 :			&& ( (abs(mv.x - (pMB-MBw)->mvs[0].x) < deltax) && (abs(mv.y - (pMB-MBw)->mvs[0].y) < deltay) )
2331 :			&& ( (abs(mv.x - (pMB+MBw)->mvs[0].x) < deltax) && (abs(mv.y - (pMB+MBw)->mvs[0].y) < deltay) ) )
2332 :	edgomez	851	MBmask[mbnum]=1;
2333 :	chl	96	}
2334 :
2335 :	edgomez	876	for (my = 1; my < (uint32_t)MBh-1; my++)
2336 :			for (mx = 1; mx < (uint32_t)MBw-1; mx++)
2337 :	edgomez	851	{
2338 :			const uint8_t const pCur = current->image.y + 16mypParam->edged_width + 16mx;
2339 :	chl	96
2340 :	edgomez	851	const int mbnum = mx + my * MBw;
2341 :			if (!MBmask[mbnum])
2342 :			continue;
2343 :
2344 :	edgomez	876	if (sad16 ( pCur, pCur+1 , pParam->edged_width, 65536) <= (uint32_t)grad )
2345 :	edgomez	851	MBmask[mbnum] = 0;
2346 :	edgomez	876	if (sad16 ( pCur, pCur+pParam->edged_width, pParam->edged_width, 65536) <= (uint32_t)grad )
2347 :	edgomez	851	MBmask[mbnum] = 0;
2348 :
2349 :	edgomez	195	}
2350 :	chl	96
2351 :	edgomez	851	emms();
2352 :	chl	96
2353 :	edgomez	851	do { /* until convergence */
2354 :	chl	96
2355 :	edgomez	851	a = b = c = n = 0;
2356 :			DtimesF[0] = DtimesF[1] = DtimesF[2] = DtimesF[3] = 0.;
2357 :	edgomez	876	for (my = 0; my < (uint32_t)MBh; my++)
2358 :			for (mx = 0; mx < (uint32_t)MBw; mx++)
2359 :	edgomez	851	{
2360 :			const int mbnum = mx + my * MBw;
2361 :			const MACROBLOCK *pMB = &pMBs[mbnum];
2362 :			const VECTOR mv = pMB->mvs[0];
2363 :	chl	96
2364 :	edgomez	851	if (!MBmask[mbnum])
2365 :			continue;
2366 :	chl	96
2367 :	edgomez	851	n++;
2368 :			a += 16*mx+8;
2369 :			b += 16*my+8;
2370 :			c += (16mx+8)(16mx+8)+(16my+8)(16my+8);
2371 :	chl	96
2372 :	edgomez	851	DtimesF[0] += (double)mv.x;
2373 :			DtimesF[1] += (double)mv.x(16mx+8) + (double)mv.y(16my+8);
2374 :			DtimesF[2] += (double)mv.x(16my+8) - (double)mv.y(16mx+8);
2375 :			DtimesF[3] += (double)mv.y;
2376 :			}
2377 :	chl	96
2378 :	edgomez	851	denom = aa+bb-c*n;
2379 :	chl	96
2380 :	syskin	976	/* Solve the system: sol = (D'ED)^{-1} D'EF */
2381 :	edgomez	851	/* D'EF has been calculated in the same loop as matrix */
2382 :	chl	96
2383 :	edgomez	851	sol[0] = -cDtimesF[0] + aDtimesF[1] + b*DtimesF[2];
2384 :	syskin	976	sol[1] = aDtimesF[0] - nDtimesF[1] + b*DtimesF[3];
2385 :			sol[2] = bDtimesF[0] - nDtimesF[2] - a*DtimesF[3];
2386 :			sol[3] = bDtimesF[1] - aDtimesF[2] - c*DtimesF[3];
2387 :	chl	96
2388 :	edgomez	851	sol[0] /= denom;
2389 :			sol[1] /= denom;
2390 :			sol[2] /= denom;
2391 :			sol[3] /= denom;
2392 :	chl	96
2393 :	edgomez	851	meanx = meany = 0.;
2394 :			oldnum = 0;
2395 :	edgomez	876	for (my = 0; my < (uint32_t)MBh; my++)
2396 :			for (mx = 0; mx < (uint32_t)MBw; mx++)
2397 :	edgomez	851	{
2398 :			const int mbnum = mx + my * MBw;
2399 :			const MACROBLOCK *pMB = &pMBs[mbnum];
2400 :			const VECTOR mv = pMB->mvs[0];
2401 :	chl	96
2402 :	edgomez	851	if (!MBmask[mbnum])
2403 :			continue;
2404 :	chl	184
2405 :	edgomez	851	oldnum++;
2406 :	syskin	985	meanx += fabs(( sol[0] + (16mx+8)sol[1] + (16my+8)sol[2] ) - mv.x );
2407 :			meany += fabs(( sol[3] - (16mx+8)sol[2] + (16my+8)sol[1] ) - mv.y );
2408 :	edgomez	851	}
2409 :	chl	96
2410 :	edgomez	851	if (4meanx > oldnum) / better fit than 0.25 is useless */
2411 :			meanx /= oldnum;
2412 :			else
2413 :			meanx = 0.25;
2414 :	edgomez	195
2415 :	edgomez	851	if (4*meany > oldnum)
2416 :			meany /= oldnum;
2417 :			else
2418 :			meany = 0.25;
2419 :	chl	96
2420 :	edgomez	851	/* fprintf(stderr,"sol = (%8.5f, %8.5f, %8.5f, %8.5f)\n",sol[0],sol[1],sol[2],sol[3]);
2421 :			fprintf(stderr,"meanx = %8.5f meany = %8.5f %d\n",meanx,meany, oldnum);
2422 :			*/
2423 :			num = 0;
2424 :	edgomez	876	for (my = 0; my < (uint32_t)MBh; my++)
2425 :			for (mx = 0; mx < (uint32_t)MBw; mx++)
2426 :	edgomez	851	{
2427 :			const int mbnum = mx + my * MBw;
2428 :			const MACROBLOCK *pMB = &pMBs[mbnum];
2429 :			const VECTOR mv = pMB->mvs[0];
2430 :	chl	96
2431 :	edgomez	851	if (!MBmask[mbnum])
2432 :			continue;
2433 :	chl	96
2434 :	syskin	985	if ( ( fabs(( sol[0] + (16mx+8)sol[1] + (16my+8)sol[2] ) - mv.x ) > meanx )
2435 :			\|\| ( fabs(( sol[3] - (16mx+8)sol[2] + (16my+8)sol[1] ) - mv.y ) > meany ) )
2436 :	edgomez	851	MBmask[mbnum]=0;
2437 :			else
2438 :			num++;
2439 :	chl	96	}
2440 :	edgomez	195
2441 :	edgomez	851	} while ( (oldnum != num) && (num>=4) );
2442 :	edgomez	195
2443 :	edgomez	851	if (num < 4)
2444 :			{
2445 :			gmc.duv[0].x= gmc.duv[0].y= gmc.duv[1].x= gmc.duv[1].y= gmc.duv[2].x= gmc.duv[2].y=0;
2446 :			} else {
2447 :	edgomez	195
2448 :	edgomez	851	gmc.duv[0].x=(int)(sol[0]+0.5);
2449 :			gmc.duv[0].y=(int)(sol[3]+0.5);
2450 :	chl	96
2451 :	edgomez	851	gmc.duv[1].x=(int)(sol[1]*pParam->width+0.5);
2452 :			gmc.duv[1].y=(int)(-sol[2]*pParam->width+0.5);
2453 :	chl	96
2454 :	edgomez	851	gmc.duv[2].x=0;
2455 :			gmc.duv[2].y=0;
2456 :			}
2457 :			// fprintf(stderr,"wp1 = ( %4d, %4d) wp2 = ( %4d, %4d) \n", gmc.duv[0].x, gmc.duv[0].y, gmc.duv[1].x, gmc.duv[1].y);
2458 :	chl	96
2459 :	edgomez	851	free(MBmask);
2460 :	chl	96
2461 :	edgomez	851	return gmc;
2462 :	chl	96	}
2463 :
2464 :	edgomez	851	// functions which perform BITS-based search/bitcount
2465 :	chl	96
2466 :	edgomez	851	static int
2467 :			CountMBBitsInter(SearchData * const Data,
2468 :			const MACROBLOCK * const pMBs, const int x, const int y,
2469 :			const MBParam * const pParam,
2470 :			const uint32_t MotionFlags)
2471 :	chl	96	{
2472 :	edgomez	851	int i, iDirection;
2473 :			int32_t bsad[5];
2474 :	chl	141
2475 :	edgomez	851	CheckCandidate = CheckCandidateBits16;
2476 :	chl	96
2477 :	edgomez	851	if (Data->qpel) {
2478 :			for(i = 0; i < 5; i++) {
2479 :			Data->currentMV[i].x = Data->currentQMV[i].x/2;
2480 :			Data->currentMV[i].y = Data->currentQMV[i].y/2;
2481 :			}
2482 :			Data->qpel_precision = 1;
2483 :			CheckCandidateBits16(Data->currentQMV[0].x, Data->currentQMV[0].y, 255, &iDirection, Data);
2484 :	chl	96
2485 :	edgomez	851	//checking if this vector is perfect. if it is, we stop.
2486 :			if (Data->temp[0] == 0 && Data->temp[1] == 0 && Data->temp[2] == 0 && Data->temp[3] == 0)
2487 :			return 0; //quick stop
2488 :	edgomez	195
2489 :	edgomez	851	if (MotionFlags & (HALFPELREFINE16_BITS \| EXTSEARCH_BITS)) { //we have to prepare for halfpixel-precision search
2490 :			for(i = 0; i < 5; i++) bsad[i] = Data->iMinSAD[i];
2491 :			get_range(&Data->min_dx, &Data->max_dx, &Data->min_dy, &Data->max_dy, x, y, 16,
2492 :			pParam->width, pParam->height, Data->iFcode - Data->qpel, 0, Data->rrv);
2493 :			Data->qpel_precision = 0;
2494 :			if (Data->currentQMV->x & 1 \|\| Data->currentQMV->y & 1)
2495 :			CheckCandidateBits16(Data->currentMV[0].x, Data->currentMV[0].y, 255, &iDirection, Data);
2496 :			}
2497 :	edgomez	195
2498 :	edgomez	851	} else { // not qpel
2499 :	edgomez	195
2500 :	edgomez	851	CheckCandidateBits16(Data->currentMV[0].x, Data->currentMV[0].y, 255, &iDirection, Data);
2501 :			//checking if this vector is perfect. if it is, we stop.
2502 :			if (Data->temp[0] == 0 && Data->temp[1] == 0 && Data->temp[2] == 0 && Data->temp[3] == 0) {
2503 :			return 0; //inter
2504 :			}
2505 :			}
2506 :	chl	96
2507 :	edgomez	851	if (MotionFlags&EXTSEARCH_BITS) SquareSearch(Data->currentMV->x, Data->currentMV->y, Data, iDirection);
2508 :	syskin	985
2509 :	edgomez	851	if (MotionFlags&HALFPELREFINE16_BITS) SubpelRefine(Data);
2510 :	chl	96
2511 :	edgomez	851	if (Data->qpel) {
2512 :			if (MotionFlags&(EXTSEARCH_BITS \| HALFPELREFINE16_BITS)) { // there was halfpel-precision search
2513 :			for(i = 0; i < 5; i++) if (bsad[i] > Data->iMinSAD[i]) {
2514 :			Data->currentQMV[i].x = 2 * Data->currentMV[i].x; // we have found a better match
2515 :			Data->currentQMV[i].y = 2 * Data->currentMV[i].y;
2516 :			}
2517 :	edgomez	195
2518 :	edgomez	851	// preparing for qpel-precision search
2519 :			Data->qpel_precision = 1;
2520 :			get_range(&Data->min_dx, &Data->max_dx, &Data->min_dy, &Data->max_dy, x, y, 16,
2521 :			pParam->width, pParam->height, Data->iFcode, 1, 0);
2522 :			}
2523 :			if (MotionFlags&QUARTERPELREFINE16_BITS) SubpelRefine(Data);
2524 :			}
2525 :	chl	96
2526 :	edgomez	851	if (MotionFlags&CHECKPREDICTION_BITS) { //let's check vector equal to prediction
2527 :			VECTOR * v = Data->qpel ? Data->currentQMV : Data->currentMV;
2528 :			if (!(Data->predMV.x == v->x && Data->predMV.y == v->y))
2529 :			CheckCandidateBits16(Data->predMV.x, Data->predMV.y, 255, &iDirection, Data);
2530 :			}
2531 :			return Data->iMinSAD[0];
2532 :			}
2533 :	chl	96
2534 :
2535 :	edgomez	851	static int
2536 :			CountMBBitsInter4v(const SearchData * const Data,
2537 :			MACROBLOCK * const pMB, const MACROBLOCK * const pMBs,
2538 :			const int x, const int y,
2539 :			const MBParam * const pParam, const uint32_t MotionFlags,
2540 :			const VECTOR * const backup)
2541 :			{
2542 :	chl	96
2543 :	edgomez	851	int cbp = 0, bits = 0, t = 0, i, iDirection;
2544 :			SearchData Data2, *Data8 = &Data2;
2545 :			int sumx = 0, sumy = 0;
2546 :	edgomez	961	int16_t in = Data->dctSpace, coeff = Data->dctSpace + 64;
2547 :	chl	96
2548 :	edgomez	851	memcpy(Data8, Data, sizeof(SearchData));
2549 :			CheckCandidate = CheckCandidateBits8;
2550 :	chl	96
2551 :	edgomez	851	for (i = 0; i < 4; i++) {
2552 :			Data8->iMinSAD = Data->iMinSAD + i + 1;
2553 :			Data8->currentMV = Data->currentMV + i + 1;
2554 :			Data8->currentQMV = Data->currentQMV + i + 1;
2555 :			Data8->Cur = Data->Cur + 8((i&1) + (i>>1)Data->iEdgedWidth);
2556 :	syskin	976	Data8->RefP[0] = Data->RefP[0] + 8((i&1) + (i>>1)Data->iEdgedWidth);
2557 :			Data8->RefP[2] = Data->RefP[2] + 8((i&1) + (i>>1)Data->iEdgedWidth);
2558 :			Data8->RefP[1] = Data->RefP[1] + 8((i&1) + (i>>1)Data->iEdgedWidth);
2559 :			Data8->RefP[3] = Data->RefP[3] + 8((i&1) + (i>>1)Data->iEdgedWidth);
2560 :	edgomez	195
2561 :	edgomez	851	if(Data->qpel) {
2562 :			Data8->predMV = get_qpmv2(pMBs, pParam->mb_width, 0, x, y, i);
2563 :			if (i != 0) t = d_mv_bits( Data8->currentQMV->x, Data8->currentQMV->y,
2564 :			Data8->predMV, Data8->iFcode, 0, 0);
2565 :			} else {
2566 :			Data8->predMV = get_pmv2(pMBs, pParam->mb_width, 0, x, y, i);
2567 :			if (i != 0) t = d_mv_bits( Data8->currentMV->x, Data8->currentMV->y,
2568 :			Data8->predMV, Data8->iFcode, 0, 0);
2569 :			}
2570 :	chl	96
2571 :	edgomez	851	get_range(&Data8->min_dx, &Data8->max_dx, &Data8->min_dy, &Data8->max_dy, 2x + (i&1), 2y + (i>>1), 8,
2572 :			pParam->width, pParam->height, Data8->iFcode, Data8->qpel, 0);
2573 :	chl	96
2574 :	edgomez	851	*Data8->iMinSAD += t;
2575 :	chl	96
2576 :	edgomez	851	Data8->qpel_precision = Data8->qpel;
2577 :			// checking the vector which has been found by SAD-based 8x8 search (if it's different than the one found so far)
2578 :	syskin	985	{
2579 :			VECTOR *v = Data8->qpel ? Data8->currentQMV : Data8->currentMV;
2580 :			if (!( (v->x == backup[i+1].x) && (v->y == backup[i+1].y) ))
2581 :	edgomez	851	CheckCandidateBits8(backup[i+1].x, backup[i+1].y, 255, &iDirection, Data8);
2582 :			}
2583 :	edgomez	195
2584 :	edgomez	851	if (Data8->qpel) {
2585 :			if (MotionFlags&HALFPELREFINE8_BITS \|\| (MotionFlags&PMV_EXTSEARCH8 && MotionFlags&EXTSEARCH_BITS)) { // halfpixel motion search follows
2586 :			int32_t s = *Data8->iMinSAD;
2587 :			Data8->currentMV->x = Data8->currentQMV->x/2;
2588 :			Data8->currentMV->y = Data8->currentQMV->y/2;
2589 :			Data8->qpel_precision = 0;
2590 :			get_range(&Data8->min_dx, &Data8->max_dx, &Data8->min_dy, &Data8->max_dy, 2x + (i&1), 2y + (i>>1), 8,
2591 :			pParam->width, pParam->height, Data8->iFcode - 1, 0, 0);
2592 :	edgomez	195
2593 :	edgomez	851	if (Data8->currentQMV->x & 1 \|\| Data8->currentQMV->y & 1)
2594 :			CheckCandidateBits8(Data8->currentMV->x, Data8->currentMV->y, 255, &iDirection, Data8);
2595 :	edgomez	195
2596 :	edgomez	851	if (MotionFlags & PMV_EXTSEARCH8 && MotionFlags & EXTSEARCH_BITS)
2597 :			SquareSearch(Data8->currentMV->x, Data8->currentMV->x, Data8, 255);
2598 :	chl	96
2599 :	edgomez	851	if (MotionFlags & HALFPELREFINE8_BITS) SubpelRefine(Data8);
2600 :	chl	96
2601 :	edgomez	851	if(s > *Data8->iMinSAD) { //we have found a better match
2602 :			Data8->currentQMV->x = 2*Data8->currentMV->x;
2603 :			Data8->currentQMV->y = 2*Data8->currentMV->y;
2604 :			}
2605 :	chl	96
2606 :	edgomez	851	Data8->qpel_precision = 1;
2607 :			get_range(&Data8->min_dx, &Data8->max_dx, &Data8->min_dy, &Data8->max_dy, 2x + (i&1), 2y + (i>>1), 8,
2608 :			pParam->width, pParam->height, Data8->iFcode, 1, 0);
2609 :	chl	96
2610 :	edgomez	851	}
2611 :			if (MotionFlags & QUARTERPELREFINE8_BITS) SubpelRefine(Data8);
2612 :	edgomez	195
2613 :	edgomez	851	} else // not qpel
2614 :			if (MotionFlags & HALFPELREFINE8_BITS) SubpelRefine(Data8); //halfpel mode, halfpel refinement
2615 :
2616 :			//checking vector equal to predicion
2617 :			if (i != 0 && MotionFlags & CHECKPREDICTION_BITS) {
2618 :			const VECTOR * v = Data->qpel ? Data8->currentQMV : Data8->currentMV;
2619 :			if (!(Data8->predMV.x == v->x && Data8->predMV.y == v->y))
2620 :			CheckCandidateBits8(Data8->predMV.x, Data8->predMV.y, 255, &iDirection, Data8);
2621 :	chl	141	}
2622 :	edgomez	195
2623 :	edgomez	851	bits += *Data8->iMinSAD;
2624 :			if (bits >= Data->iMinSAD[0]) break; // no chances for INTER4V
2625 :
2626 :			// MB structures for INTER4V mode; we have to set them here, we don't have predictor anywhere else
2627 :			if(Data->qpel) {
2628 :			pMB->pmvs[i].x = Data8->currentQMV->x - Data8->predMV.x;
2629 :			pMB->pmvs[i].y = Data8->currentQMV->y - Data8->predMV.y;
2630 :			pMB->qmvs[i] = *Data8->currentQMV;
2631 :			sumx += Data8->currentQMV->x/2;
2632 :			sumy += Data8->currentQMV->y/2;
2633 :			} else {
2634 :			pMB->pmvs[i].x = Data8->currentMV->x - Data8->predMV.x;
2635 :			pMB->pmvs[i].y = Data8->currentMV->y - Data8->predMV.y;
2636 :			sumx += Data8->currentMV->x;
2637 :			sumy += Data8->currentMV->y;
2638 :	chl	141	}
2639 :	edgomez	851	pMB->mvs[i] = *Data8->currentMV;
2640 :			pMB->sad8[i] = 4 * *Data8->iMinSAD;
2641 :			if (Data8->temp[0]) cbp \|= 1 << (5 - i);
2642 :	chl	141	}
2643 :
2644 :	edgomez	851	if (bits < *Data->iMinSAD) { // there is still a chance for inter4v mode. let's check chroma
2645 :			const uint8_t * ptr;
2646 :			sumx = (sumx >> 3) + roundtab_76[sumx & 0xf];
2647 :			sumy = (sumy >> 3) + roundtab_76[sumy & 0xf];
2648 :	chl	141
2649 :	edgomez	851	//chroma U
2650 :	syskin	976	ptr = interpolate8x8_switch2(Data->RefQ + 64, Data->RefP[4], 0, 0, sumx, sumy, Data->iEdgedWidth/2, Data->rounding);
2651 :	edgomez	851	transfer_8to16subro(in, Data->CurU, ptr, Data->iEdgedWidth/2);
2652 :			fdct(in);
2653 :			if (Data->lambda8 == 0) i = quant_inter(coeff, in, Data->lambda16);
2654 :			else i = quant4_inter(coeff, in, Data->lambda16);
2655 :			if (i > 0) {
2656 :			bits += CodeCoeffInter_CalcBits(coeff, scan_tables[0]);
2657 :			cbp \|= 1 << (5 - 4);
2658 :			}
2659 :	chl	141
2660 :	edgomez	851	if (bits < *Data->iMinSAD) { // still possible
2661 :			//chroma V
2662 :	syskin	976	ptr = interpolate8x8_switch2(Data->RefQ + 64, Data->RefP[5], 0, 0, sumx, sumy, Data->iEdgedWidth/2, Data->rounding);
2663 :	edgomez	851	transfer_8to16subro(in, Data->CurV, ptr, Data->iEdgedWidth/2);
2664 :			fdct(in);
2665 :			if (Data->lambda8 == 0) i = quant_inter(coeff, in, Data->lambda16);
2666 :			else i = quant4_inter(coeff, in, Data->lambda16);
2667 :			if (i > 0) {
2668 :			bits += CodeCoeffInter_CalcBits(coeff, scan_tables[0]);
2669 :			cbp \|= 1 << (5 - 5);
2670 :			}
2671 :	chl	897	bits += xvid_cbpy_tab[15-(cbp>>2)].len;
2672 :	edgomez	851	bits += mcbpc_inter_tab[(MODE_INTER4V & 7) \| ((cbp & 3) << 3)].len;
2673 :			}
2674 :	edgomez	195	}
2675 :	chl	96
2676 :	edgomez	851	return bits;
2677 :			}
2678 :	chl	96
2679 :
2680 :	edgomez	851	static int
2681 :			CountMBBitsIntra(const SearchData * const Data)
2682 :			{
2683 :			int bits = 1; //this one is ac/dc prediction flag. always 1.
2684 :	syskin	976	int cbp = 0, i, t, dc = 1024, b_dc;
2685 :	edgomez	851	const uint32_t iQuant = Data->lambda16;
2686 :	edgomez	961	int16_t in = Data->dctSpace, coeff = Data->dctSpace + 64;
2687 :	syskin	976	uint32_t iDcScaler = get_dc_scaler(iQuant, 1);;
2688 :	edgomez	195
2689 :	edgomez	851	for(i = 0; i < 4; i++) {
2690 :			int s = 8((i&1) + (i>>1)Data->iEdgedWidth);
2691 :			transfer_8to16copy(in, Data->Cur + s, Data->iEdgedWidth);
2692 :			fdct(in);
2693 :	syskin	976	b_dc = in[0];
2694 :			in[0] -= dc;
2695 :			dc = b_dc;
2696 :			if (Data->lambda8 == 0) quant_intra(coeff, in, iQuant, iDcScaler);
2697 :			else quant4_intra(coeff, in, iQuant, iDcScaler);
2698 :	chl	141
2699 :	edgomez	851	bits += t = CodeCoeffIntra_CalcBits(coeff, scan_tables[0]) + dcy_tab[coeff[0] + 255].len;;
2700 :			Data->temp[i] = t;
2701 :			if (t != 0) cbp \|= 1 << (5 - i);
2702 :			if (bits >= Data->iMinSAD[0]) break;
2703 :			}
2704 :	chl	181
2705 :	edgomez	851	if (bits < Data->iMinSAD[0]) { // INTRA still looks good, let's add chroma
2706 :	syskin	976	iDcScaler = get_dc_scaler(iQuant, 0);
2707 :	edgomez	851	//chroma U
2708 :			transfer_8to16copy(in, Data->CurU, Data->iEdgedWidth/2);
2709 :			fdct(in);
2710 :			in[0] -= 1024;
2711 :			if (Data->lambda8 == 0) quant_intra(coeff, in, iQuant, iDcScaler);
2712 :			else quant4_intra(coeff, in, iQuant, iDcScaler);
2713 :	chl	96
2714 :	edgomez	851	bits += t = CodeCoeffIntra_CalcBits(coeff, scan_tables[0]) + dcc_tab[coeff[0] + 255].len;
2715 :			if (t != 0) cbp \|= 1 << (5 - 4);
2716 :	chl	141
2717 :	edgomez	851	if (bits < Data->iMinSAD[0]) {
2718 :			//chroma V
2719 :			transfer_8to16copy(in, Data->CurV, Data->iEdgedWidth/2);
2720 :			fdct(in);
2721 :			in[0] -= 1024;
2722 :			if (Data->lambda8 == 0) quant_intra(coeff, in, iQuant, iDcScaler);
2723 :			else quant4_intra(coeff, in, iQuant, iDcScaler);
2724 :	chl	96
2725 :	edgomez	851	bits += t = CodeCoeffIntra_CalcBits(coeff, scan_tables[0]) + dcc_tab[coeff[0] + 255].len;
2726 :			if (t != 0) cbp \|= 1 << (5 - 5);
2727 :	chl	96
2728 :	syskin	904	bits += xvid_cbpy_tab[cbp>>2].len;
2729 :			bits += mcbpc_inter_tab[(MODE_INTRA & 7) \| ((cbp & 3) << 3)].len;
2730 :	chl	96	}
2731 :			}
2732 :	edgomez	851	return bits;
2733 :	chl	96	}

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