FFmpeg: libavcodec/motion_est.c Source File

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motion_est.c

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1 /*

2 * Motion estimation

5 *

6 * new motion estimation (X1/EPZS) by Michael Niedermayer <michaelni@gmx.at>

7 *

8 * This file is part of FFmpeg.

9 *

10 * FFmpeg is free software; you can redistribute it and/or

11 * modify it under the terms of the GNU Lesser General Public

12 * License as published by the Free Software Foundation; either

13 * version 2.1 of the License, or (at your option) any later version.

14 *

15 * FFmpeg is distributed in the hope that it will be useful,

16 * but WITHOUT ANY WARRANTY; without even the implied warranty of

17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

18 * Lesser General Public License for more details.

19 *

20 * You should have received a copy of the GNU Lesser General Public

21 * License along with FFmpeg; if not, write to the Free Software

22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

23 */

25 /**

26 * @file

27 * Motion estimation.

28 */

30 #include <stdlib.h>

31 #include <stdio.h>

32 #include <limits.h>

34 #include "avcodec.h"

35 #include "mathops.h"

36 #include "mpegutils.h"

37 #include "mpegvideo.h"

39 #define P_LEFT P[1]

40 #define P_TOP P[2]

41 #define P_TOPRIGHT P[3]

42 #define P_MEDIAN P[4]

43 #define P_MV1 P[9]

45 #define ME_MAP_SHIFT 3

46 #define ME_MAP_MV_BITS 11

48 static int sad_hpel_motion_search(MpegEncContext * s,

49 int *mx_ptr, int *my_ptr, int dmin,

50 int src_index, int ref_index,

51 int size, int h);

53 static inline unsigned update_map_generation(MotionEstContext *c)

54 {

55 c->map_generation+= 1<<(ME_MAP_MV_BITS*2);

56 if(c->map_generation==0){

57 c->map_generation= 1<<(ME_MAP_MV_BITS*2);

58 memset(c->map, 0, sizeof(uint32_t)*ME_MAP_SIZE);

59 }

60 return c->map_generation;

61 }

63 /* shape adaptive search stuff */

64 typedef struct Minima{

65 int height;

66 int x, y;

67 int checked;

68 }Minima;

70 static int minima_cmp(const void *a, const void *b){

71 const Minima *da = (const Minima *) a;

72 const Minima *db = (const Minima *) b;

74 return da->height - db->height;

75 }

77 #define FLAG_QPEL 1 //must be 1

78 #define FLAG_CHROMA 2

79 #define FLAG_DIRECT 4

81 static inline void init_ref(MotionEstContext *c, uint8_t *src[3], uint8_t *ref[3], uint8_t *ref2[3], int x, int y, int ref_index){

82 const int offset[3]= {

83 y*c-> stride + x,

84 ((y*c->uvstride + x)>>1),

85 ((y*c->uvstride + x)>>1),

86 };

87 int i;

88 for(i=0; i<3; i++){

89 c->src[0][i]= src [i] + offset[i];

90 c->ref[0][i]= ref [i] + offset[i];

91 }

92 if(ref_index){

93 for(i=0; i<3; i++){

94 c->ref[ref_index][i]= ref2[i] + offset[i];

95 }

96 }

97 }

99 static int get_flags(MotionEstContext *c, int direct, int chroma){

100 return ((c->avctx->flags&CODEC_FLAG_QPEL) ? FLAG_QPEL : 0)

101 + (direct ? FLAG_DIRECT : 0)

102 + (chroma ? FLAG_CHROMA : 0);

103 }

104

105 static av_always_inline int cmp_direct_inline(MpegEncContext *s, const int x, const int y, const int subx, const int suby,

106 const int size, const int h, int ref_index, int src_index,

107 me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, int qpel){

108 MotionEstContext * const c= &s->me;

109 const int stride= c->stride;

110 const int hx= subx + (x<<(1+qpel));

111 const int hy= suby + (y<<(1+qpel));

112 uint8_t * const * const ref= c->ref[ref_index];

113 uint8_t * const * const src= c->src[src_index];

114 int d;

115 //FIXME check chroma 4mv, (no crashes ...)

116 av_assert2(x >= c->xmin && hx <= c->xmax<<(qpel+1) && y >= c->ymin && hy <= c->ymax<<(qpel+1));

117 if(x >= c->xmin && hx <= c->xmax<<(qpel+1) && y >= c->ymin && hy <= c->ymax<<(qpel+1)){

118 const int time_pp= s->pp_time;

119 const int time_pb= s->pb_time;

120 const int mask= 2*qpel+1;

121 if(s->mv_type==MV_TYPE_8X8){

122 int i;

123 for(i=0; i<4; i++){

124 int fx = c->direct_basis_mv[i][0] + hx;

125 int fy = c->direct_basis_mv[i][1] + hy;

126 int bx = hx ? fx - c->co_located_mv[i][0] : c->co_located_mv[i][0]*(time_pb - time_pp)/time_pp + ((i &1)<<(qpel+4));

127 int by = hy ? fy - c->co_located_mv[i][1] : c->co_located_mv[i][1]*(time_pb - time_pp)/time_pp + ((i>>1)<<(qpel+4));

128 int fxy= (fx&mask) + ((fy&mask)<<(qpel+1));

129 int bxy= (bx&mask) + ((by&mask)<<(qpel+1));

130

131 uint8_t *dst= c->temp + 8*(i&1) + 8*stride*(i>>1);

132 if(qpel){

133 c->qpel_put[1][fxy](dst, ref[0] + (fx>>2) + (fy>>2)*stride, stride);

134 c->qpel_avg[1][bxy](dst, ref[8] + (bx>>2) + (by>>2)*stride, stride);

135 }else{

136 c->hpel_put[1][fxy](dst, ref[0] + (fx>>1) + (fy>>1)*stride, stride, 8);

137 c->hpel_avg[1][bxy](dst, ref[8] + (bx>>1) + (by>>1)*stride, stride, 8);

138 }

139 }

140 }else{

141 int fx = c->direct_basis_mv[0][0] + hx;

142 int fy = c->direct_basis_mv[0][1] + hy;

143 int bx = hx ? fx - c->co_located_mv[0][0] : (c->co_located_mv[0][0]*(time_pb - time_pp)/time_pp);

144 int by = hy ? fy - c->co_located_mv[0][1] : (c->co_located_mv[0][1]*(time_pb - time_pp)/time_pp);

145 int fxy= (fx&mask) + ((fy&mask)<<(qpel+1));

146 int bxy= (bx&mask) + ((by&mask)<<(qpel+1));

147

148 if(qpel){

149 c->qpel_put[1][fxy](c->temp , ref[0] + (fx>>2) + (fy>>2)*stride , stride);

150 c->qpel_put[1][fxy](c->temp + 8 , ref[0] + (fx>>2) + (fy>>2)*stride + 8 , stride);

151 c->qpel_put[1][fxy](c->temp + 8*stride, ref[0] + (fx>>2) + (fy>>2)*stride + 8*stride, stride);

152 c->qpel_put[1][fxy](c->temp + 8 + 8*stride, ref[0] + (fx>>2) + (fy>>2)*stride + 8 + 8*stride, stride);

153 c->qpel_avg[1][bxy](c->temp , ref[8] + (bx>>2) + (by>>2)*stride , stride);

154 c->qpel_avg[1][bxy](c->temp + 8 , ref[8] + (bx>>2) + (by>>2)*stride + 8 , stride);

155 c->qpel_avg[1][bxy](c->temp + 8*stride, ref[8] + (bx>>2) + (by>>2)*stride + 8*stride, stride);

156 c->qpel_avg[1][bxy](c->temp + 8 + 8*stride, ref[8] + (bx>>2) + (by>>2)*stride + 8 + 8*stride, stride);

157 }else{

158 av_assert2((fx>>1) + 16*s->mb_x >= -16);

159 av_assert2((fy>>1) + 16*s->mb_y >= -16);

160 av_assert2((fx>>1) + 16*s->mb_x <= s->width);

161 av_assert2((fy>>1) + 16*s->mb_y <= s->height);

162 av_assert2((bx>>1) + 16*s->mb_x >= -16);

163 av_assert2((by>>1) + 16*s->mb_y >= -16);

164 av_assert2((bx>>1) + 16*s->mb_x <= s->width);

165 av_assert2((by>>1) + 16*s->mb_y <= s->height);

166

167 c->hpel_put[0][fxy](c->temp, ref[0] + (fx>>1) + (fy>>1)*stride, stride, 16);

168 c->hpel_avg[0][bxy](c->temp, ref[8] + (bx>>1) + (by>>1)*stride, stride, 16);

169 }

170 }

171 d = cmp_func(s, c->temp, src[0], stride, 16);

172 }else

173 d= 256*256*256*32;

174 return d;

175 }

176

177 static av_always_inline int cmp_inline(MpegEncContext *s, const int x, const int y, const int subx, const int suby,

178 const int size, const int h, int ref_index, int src_index,

179 me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, int qpel, int chroma){

180 MotionEstContext * const c= &s->me;

181 const int stride= c->stride;

182 const int uvstride= c->uvstride;

183 const int dxy= subx + (suby<<(1+qpel)); //FIXME log2_subpel?

184 const int hx= subx + (x<<(1+qpel));

185 const int hy= suby + (y<<(1+qpel));

186 uint8_t * const * const ref= c->ref[ref_index];

187 uint8_t * const * const src= c->src[src_index];

188 int d;

189 //FIXME check chroma 4mv, (no crashes ...)

190 int uvdxy; /* no, it might not be used uninitialized */

191 if(dxy){

192 if(qpel){

193 if (h << size == 16) {

194 c->qpel_put[size][dxy](c->temp, ref[0] + x + y*stride, stride); //FIXME prototype (add h)

195 } else if (size == 0 && h == 8) {

196 c->qpel_put[1][dxy](c->temp , ref[0] + x + y*stride , stride);

197 c->qpel_put[1][dxy](c->temp + 8, ref[0] + x + y*stride + 8, stride);

198 } else

199 av_assert2(0);

200 if(chroma){

201 int cx= hx/2;

202 int cy= hy/2;

203 cx= (cx>>1)|(cx&1);

204 cy= (cy>>1)|(cy&1);

205 uvdxy= (cx&1) + 2*(cy&1);

206 //FIXME x/y wrong, but mpeg4 qpel is sick anyway, we should drop as much of it as possible in favor for h264

207 }

208 }else{

209 c->hpel_put[size][dxy](c->temp, ref[0] + x + y*stride, stride, h);

210 if(chroma)

211 uvdxy= dxy | (x&1) | (2*(y&1));

212 }

213 d = cmp_func(s, c->temp, src[0], stride, h);

214 }else{

215 d = cmp_func(s, src[0], ref[0] + x + y*stride, stride, h);

216 if(chroma)

217 uvdxy= (x&1) + 2*(y&1);

218 }

219 if(chroma){

220 uint8_t * const uvtemp= c->temp + 16*stride;

221 c->hpel_put[size+1][uvdxy](uvtemp , ref[1] + (x>>1) + (y>>1)*uvstride, uvstride, h>>1);

222 c->hpel_put[size+1][uvdxy](uvtemp+8, ref[2] + (x>>1) + (y>>1)*uvstride, uvstride, h>>1);

223 d += chroma_cmp_func(s, uvtemp , src[1], uvstride, h>>1);

224 d += chroma_cmp_func(s, uvtemp+8, src[2], uvstride, h>>1);

225 }

226 return d;

227 }

228

229 static int cmp_simple(MpegEncContext *s, const int x, const int y,

230 int ref_index, int src_index,

231 me_cmp_func cmp_func, me_cmp_func chroma_cmp_func){

232 return cmp_inline(s,x,y,0,0,0,16,ref_index,src_index, cmp_func, chroma_cmp_func, 0, 0);

233 }

234

235 static int cmp_fpel_internal(MpegEncContext *s, const int x, const int y,

236 const int size, const int h, int ref_index, int src_index,

237 me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags){

238 if(flags&FLAG_DIRECT){

239 return cmp_direct_inline(s,x,y,0,0,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, flags&FLAG_QPEL);

240 }else{

241 return cmp_inline(s,x,y,0,0,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, 0, flags&FLAG_CHROMA);

242 }

243 }

244

245 static int cmp_internal(MpegEncContext *s, const int x, const int y, const int subx, const int suby,

246 const int size, const int h, int ref_index, int src_index,

247 me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags){

248 if(flags&FLAG_DIRECT){

249 return cmp_direct_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, flags&FLAG_QPEL);

250 }else{

251 return cmp_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, flags&FLAG_QPEL, flags&FLAG_CHROMA);

252 }

253 }

254

255 /** @brief compares a block (either a full macroblock or a partition thereof)

256 against a proposed motion-compensated prediction of that block

257 */

258 static av_always_inline int cmp(MpegEncContext *s, const int x, const int y, const int subx, const int suby,

259 const int size, const int h, int ref_index, int src_index,

260 me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags){

261 if(av_builtin_constant_p(flags) && av_builtin_constant_p(h) && av_builtin_constant_p(size)

262 && av_builtin_constant_p(subx) && av_builtin_constant_p(suby)

263 && flags==0 && h==16 && size==0 && subx==0 && suby==0){

264 return cmp_simple(s,x,y,ref_index,src_index, cmp_func, chroma_cmp_func);

265 }else if(av_builtin_constant_p(subx) && av_builtin_constant_p(suby)

266 && subx==0 && suby==0){

267 return cmp_fpel_internal(s,x,y,size,h,ref_index,src_index, cmp_func, chroma_cmp_func,flags);

268 }else{

269 return cmp_internal(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, flags);

270 }

271 }

272

273 static int cmp_hpel(MpegEncContext *s, const int x, const int y, const int subx, const int suby,

274 const int size, const int h, int ref_index, int src_index,

275 me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags){

276 if(flags&FLAG_DIRECT){

277 return cmp_direct_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, 0);

278 }else{

279 return cmp_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, 0, flags&FLAG_CHROMA);

280 }

281 }

282

283 static int cmp_qpel(MpegEncContext *s, const int x, const int y, const int subx, const int suby,

284 const int size, const int h, int ref_index, int src_index,

285 me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags){

286 if(flags&FLAG_DIRECT){

287 return cmp_direct_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, 1);

288 }else{

289 return cmp_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, 1, flags&FLAG_CHROMA);

290 }

291 }

292

293 #include "motion_est_template.c"

294

295 static int zero_cmp(MpegEncContext *s, uint8_t *a, uint8_t *b,

296 ptrdiff_t stride, int h)

297 {

298 return 0;

299 }

300

301 static void zero_hpel(uint8_t *a, const uint8_t *b, ptrdiff_t stride, int h){

302 }

303

304 int ff_init_me(MpegEncContext *s){

305 MotionEstContext * const c= &s->me;

306 int cache_size= FFMIN(ME_MAP_SIZE>>ME_MAP_SHIFT, 1<<ME_MAP_SHIFT);

307 int dia_size= FFMAX(FFABS(s->avctx->dia_size)&255, FFABS(s->avctx->pre_dia_size)&255);

308

309 if(FFMIN(s->avctx->dia_size, s->avctx->pre_dia_size) < -FFMIN(ME_MAP_SIZE, MAX_SAB_SIZE)){

310 av_log(s->avctx, AV_LOG_ERROR, "ME_MAP size is too small for SAB diamond\n");

311 return -1;

312 }

313 //special case of snow is needed because snow uses its own iterative ME code

314 if(s->me_method!=ME_ZERO && s->me_method!=ME_EPZS && s->me_method!=ME_X1 && s->avctx->codec_id != AV_CODEC_ID_SNOW){

315 av_log(s->avctx, AV_LOG_ERROR, "me_method is only allowed to be set to zero and epzs; for hex,umh,full and others see dia_size\n");

316 return -1;

317 }

318

319 c->avctx= s->avctx;

320

321 if(s->codec_id == AV_CODEC_ID_H261)

322 c->avctx->me_sub_cmp = c->avctx->me_cmp;

323

324 if(cache_size < 2*dia_size && !c->stride){

325 av_log(s->avctx, AV_LOG_INFO, "ME_MAP size may be a little small for the selected diamond size\n");

326 }

327

328 ff_set_cmp(&s->mecc, s->mecc.me_pre_cmp, c->avctx->me_pre_cmp);

329 ff_set_cmp(&s->mecc, s->mecc.me_cmp, c->avctx->me_cmp);

330 ff_set_cmp(&s->mecc, s->mecc.me_sub_cmp, c->avctx->me_sub_cmp);

331 ff_set_cmp(&s->mecc, s->mecc.mb_cmp, c->avctx->mb_cmp);

332

333 c->flags = get_flags(c, 0, c->avctx->me_cmp &FF_CMP_CHROMA);

334 c->sub_flags= get_flags(c, 0, c->avctx->me_sub_cmp&FF_CMP_CHROMA);

335 c->mb_flags = get_flags(c, 0, c->avctx->mb_cmp &FF_CMP_CHROMA);

336

337 /*FIXME s->no_rounding b_type*/

338 if(s->flags&CODEC_FLAG_QPEL){

339 c->sub_motion_search= qpel_motion_search;

340 c->qpel_avg = s->qdsp.avg_qpel_pixels_tab;

341 if (s->no_rounding)

342 c->qpel_put = s->qdsp.put_no_rnd_qpel_pixels_tab;

343 else

344 c->qpel_put = s->qdsp.put_qpel_pixels_tab;

345 }else{

346 if(c->avctx->me_sub_cmp&FF_CMP_CHROMA)

347 c->sub_motion_search= hpel_motion_search;

348 else if( c->avctx->me_sub_cmp == FF_CMP_SAD

349 && c->avctx-> me_cmp == FF_CMP_SAD

350 && c->avctx-> mb_cmp == FF_CMP_SAD)

351 c->sub_motion_search= sad_hpel_motion_search; // 2050 vs. 2450 cycles

352 else

353 c->sub_motion_search= hpel_motion_search;

354 }

355 c->hpel_avg = s->hdsp.avg_pixels_tab;

356 if (s->no_rounding)

357 c->hpel_put = s->hdsp.put_no_rnd_pixels_tab;

358 else

359 c->hpel_put = s->hdsp.put_pixels_tab;

360

361 if(s->linesize){

362 c->stride = s->linesize;

363 c->uvstride= s->uvlinesize;

364 }else{

365 c->stride = 16*s->mb_width + 32;

366 c->uvstride= 8*s->mb_width + 16;

367 }

368

369 /* 8x8 fullpel search would need a 4x4 chroma compare, which we do

370 * not have yet, and even if we had, the motion estimation code

371 * does not expect it. */

372 if (s->codec_id != AV_CODEC_ID_SNOW) {

373 if ((c->avctx->me_cmp & FF_CMP_CHROMA) /* && !s->mecc.me_cmp[2] */)

374 s->mecc.me_cmp[2] = zero_cmp;

375 if ((c->avctx->me_sub_cmp & FF_CMP_CHROMA) && !s->mecc.me_sub_cmp[2])

376 s->mecc.me_sub_cmp[2] = zero_cmp;

377 c->hpel_put[2][0]= c->hpel_put[2][1]=

378 c->hpel_put[2][2]= c->hpel_put[2][3]= zero_hpel;

379 }

380

381 if(s->codec_id == AV_CODEC_ID_H261){

382 c->sub_motion_search= no_sub_motion_search;

383 }

384

385 return 0;

386 }

387

388 #define CHECK_SAD_HALF_MV(suffix, x, y) \

389 {\

390 d = s->mecc.pix_abs[size][(x ? 1 : 0) + (y ? 2 : 0)](NULL, pix, ptr + ((x) >> 1), stride, h); \

391 d += (mv_penalty[pen_x + x] + mv_penalty[pen_y + y])*penalty_factor;\

392 COPY3_IF_LT(dminh, d, dx, x, dy, y)\

393 }

394

395 static int sad_hpel_motion_search(MpegEncContext * s,

396 int *mx_ptr, int *my_ptr, int dmin,

397 int src_index, int ref_index,

398 int size, int h)

399 {

400 MotionEstContext * const c= &s->me;

401 const int penalty_factor= c->sub_penalty_factor;

402 int mx, my, dminh;

403 uint8_t *pix, *ptr;

404 int stride= c->stride;

405 LOAD_COMMON

406

407 av_assert2(c->sub_flags == 0);

408

409 if(c->skip){

410 *mx_ptr = 0;

411 *my_ptr = 0;

412 return dmin;

413 }

414

415 pix = c->src[src_index][0];

416

417 mx = *mx_ptr;

418 my = *my_ptr;

419 ptr = c->ref[ref_index][0] + (my * stride) + mx;

420

421 dminh = dmin;

422

423 if (mx > xmin && mx < xmax &&

424 my > ymin && my < ymax) {

425 int dx=0, dy=0;

426 int d, pen_x, pen_y;

427 const int index= (my<<ME_MAP_SHIFT) + mx;

428 const int t= score_map[(index-(1<<ME_MAP_SHIFT))&(ME_MAP_SIZE-1)];

429 const int l= score_map[(index- 1 )&(ME_MAP_SIZE-1)];

430 const int r= score_map[(index+ 1 )&(ME_MAP_SIZE-1)];

431 const int b= score_map[(index+(1<<ME_MAP_SHIFT))&(ME_MAP_SIZE-1)];

432 mx<<=1;

433 my<<=1;

434

435

436 pen_x= pred_x + mx;

437 pen_y= pred_y + my;

438

439 ptr-= stride;

440 if(t<=b){

441 CHECK_SAD_HALF_MV(y2 , 0, -1)

442 if(l<=r){

443 CHECK_SAD_HALF_MV(xy2, -1, -1)

444 if(t+r<=b+l){

445 CHECK_SAD_HALF_MV(xy2, +1, -1)

446 ptr+= stride;

447 }else{

448 ptr+= stride;

449 CHECK_SAD_HALF_MV(xy2, -1, +1)

450 }

451 CHECK_SAD_HALF_MV(x2 , -1, 0)

452 }else{

453 CHECK_SAD_HALF_MV(xy2, +1, -1)

454 if(t+l<=b+r){

455 CHECK_SAD_HALF_MV(xy2, -1, -1)

456 ptr+= stride;

457 }else{

458 ptr+= stride;

459 CHECK_SAD_HALF_MV(xy2, +1, +1)

460 }

461 CHECK_SAD_HALF_MV(x2 , +1, 0)

462 }

463 }else{

464 if(l<=r){

465 if(t+l<=b+r){

466 CHECK_SAD_HALF_MV(xy2, -1, -1)

467 ptr+= stride;

468 }else{

469 ptr+= stride;

470 CHECK_SAD_HALF_MV(xy2, +1, +1)

471 }

472 CHECK_SAD_HALF_MV(x2 , -1, 0)

473 CHECK_SAD_HALF_MV(xy2, -1, +1)

474 }else{

475 if(t+r<=b+l){

476 CHECK_SAD_HALF_MV(xy2, +1, -1)

477 ptr+= stride;

478 }else{

479 ptr+= stride;

480 CHECK_SAD_HALF_MV(xy2, -1, +1)

481 }

482 CHECK_SAD_HALF_MV(x2 , +1, 0)

483 CHECK_SAD_HALF_MV(xy2, +1, +1)

484 }

485 CHECK_SAD_HALF_MV(y2 , 0, +1)

486 }

487 mx+=dx;

488 my+=dy;

489

490 }else{

491 mx<<=1;

492 my<<=1;

493 }

494

495 *mx_ptr = mx;

496 *my_ptr = my;

497 return dminh;

498 }

499

500 static inline void set_p_mv_tables(MpegEncContext * s, int mx, int my, int mv4)

501 {

502 const int xy= s->mb_x + s->mb_y*s->mb_stride;

503

504 s->p_mv_table[xy][0] = mx;

505 s->p_mv_table[xy][1] = my;

506

507 /* has already been set to the 4 MV if 4MV is done */

508 if(mv4){

509 int mot_xy= s->block_index[0];

510

511 s->current_picture.motion_val[0][mot_xy ][0] = mx;

512 s->current_picture.motion_val[0][mot_xy ][1] = my;

513 s->current_picture.motion_val[0][mot_xy + 1][0] = mx;

514 s->current_picture.motion_val[0][mot_xy + 1][1] = my;

515

516 mot_xy += s->b8_stride;

517 s->current_picture.motion_val[0][mot_xy ][0] = mx;

518 s->current_picture.motion_val[0][mot_xy ][1] = my;

519 s->current_picture.motion_val[0][mot_xy + 1][0] = mx;

520 s->current_picture.motion_val[0][mot_xy + 1][1] = my;

521 }

522 }

523

524 /**

525 * get fullpel ME search limits.

526 */

527 static inline void get_limits(MpegEncContext *s, int x, int y)

528 {

529 MotionEstContext * const c= &s->me;

530 int range= c->avctx->me_range >> (1 + !!(c->flags&FLAG_QPEL));

531 int max_range = MAX_MV >> (1 + !!(c->flags&FLAG_QPEL));

532 /*

533 if(c->avctx->me_range) c->range= c->avctx->me_range >> 1;

534 else c->range= 16;

535 */

536 if (s->unrestricted_mv) {

537 c->xmin = - x - 16;

538 c->ymin = - y - 16;

539 c->xmax = - x + s->width;

540 c->ymax = - y + s->height;

541 } else if (s->out_format == FMT_H261){

542 // Search range of H261 is different from other codec standards

543 c->xmin = (x > 15) ? - 15 : 0;

544 c->ymin = (y > 15) ? - 15 : 0;

545 c->xmax = (x < s->mb_width * 16 - 16) ? 15 : 0;

546 c->ymax = (y < s->mb_height * 16 - 16) ? 15 : 0;

547 } else {

548 c->xmin = - x;

549 c->ymin = - y;

550 c->xmax = - x + s->mb_width *16 - 16;

551 c->ymax = - y + s->mb_height*16 - 16;

552 }

553 if(!range || range > max_range)

554 range = max_range;

555 if(range){

556 c->xmin = FFMAX(c->xmin,-range);

557 c->xmax = FFMIN(c->xmax, range);

558 c->ymin = FFMAX(c->ymin,-range);

559 c->ymax = FFMIN(c->ymax, range);

560 }

561 }

562

563 static inline void init_mv4_ref(MotionEstContext *c){

564 const int stride= c->stride;

565

566 c->ref[1][0] = c->ref[0][0] + 8;

567 c->ref[2][0] = c->ref[0][0] + 8*stride;

568 c->ref[3][0] = c->ref[2][0] + 8;

569 c->src[1][0] = c->src[0][0] + 8;

570 c->src[2][0] = c->src[0][0] + 8*stride;

571 c->src[3][0] = c->src[2][0] + 8;

572 }

573

574 static inline int h263_mv4_search(MpegEncContext *s, int mx, int my, int shift)

575 {

576 MotionEstContext * const c= &s->me;

577 const int size= 1;

578 const int h=8;

579 int block;

580 int P[10][2];

581 int dmin_sum=0, mx4_sum=0, my4_sum=0, i;

582 int same=1;

583 const int stride= c->stride;

584 uint8_t *mv_penalty= c->current_mv_penalty;

585 int saftey_cliping= s->unrestricted_mv && (s->width&15) && (s->height&15);

586

587 init_mv4_ref(c);

588

589 for(block=0; block<4; block++){

590 int mx4, my4;

591 int pred_x4, pred_y4;

592 int dmin4;

593 static const int off[4]= {2, 1, 1, -1};

594 const int mot_stride = s->b8_stride;

595 const int mot_xy = s->block_index[block];

596

597 if(saftey_cliping){

598 c->xmax = - 16*s->mb_x + s->width - 8*(block &1);

599 c->ymax = - 16*s->mb_y + s->height - 8*(block>>1);

600 }

601

602 P_LEFT[0] = s->current_picture.motion_val[0][mot_xy - 1][0];

603 P_LEFT[1] = s->current_picture.motion_val[0][mot_xy - 1][1];

604

605 if(P_LEFT[0] > (c->xmax<<shift)) P_LEFT[0] = (c->xmax<<shift);

606

607 /* special case for first line */

608 if (s->first_slice_line && block<2) {

609 c->pred_x= pred_x4= P_LEFT[0];

610 c->pred_y= pred_y4= P_LEFT[1];

611 } else {

612 P_TOP[0] = s->current_picture.motion_val[0][mot_xy - mot_stride ][0];

613 P_TOP[1] = s->current_picture.motion_val[0][mot_xy - mot_stride ][1];

614 P_TOPRIGHT[0] = s->current_picture.motion_val[0][mot_xy - mot_stride + off[block]][0];

615 P_TOPRIGHT[1] = s->current_picture.motion_val[0][mot_xy - mot_stride + off[block]][1];

616 if(P_TOP[1] > (c->ymax<<shift)) P_TOP[1] = (c->ymax<<shift);

617 if(P_TOPRIGHT[0] < (c->xmin<<shift)) P_TOPRIGHT[0]= (c->xmin<<shift);

618 if(P_TOPRIGHT[0] > (c->xmax<<shift)) P_TOPRIGHT[0]= (c->xmax<<shift);

619 if(P_TOPRIGHT[1] > (c->ymax<<shift)) P_TOPRIGHT[1]= (c->ymax<<shift);

620

621 P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);

622 P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);

623

624 c->pred_x= pred_x4 = P_MEDIAN[0];

625 c->pred_y= pred_y4 = P_MEDIAN[1];

626 }

627 P_MV1[0]= mx;

628 P_MV1[1]= my;

629 if(saftey_cliping)

630 for(i=1; i<10; i++){

631 if (s->first_slice_line && block<2 && i>1 && i<9)

632 continue;

633 if (i>4 && i<9)

634 continue;

635 if(P[i][0] > (c->xmax<<shift)) P[i][0]= (c->xmax<<shift);

636 if(P[i][1] > (c->ymax<<shift)) P[i][1]= (c->ymax<<shift);

637 }

638

639 dmin4 = epzs_motion_search4(s, &mx4, &my4, P, block, block, s->p_mv_table, (1<<16)>>shift);

640

641 dmin4= c->sub_motion_search(s, &mx4, &my4, dmin4, block, block, size, h);

642

643 if (s->mecc.me_sub_cmp[0] != s->mecc.mb_cmp[0]) {

644 int dxy;

645 const int offset= ((block&1) + (block>>1)*stride)*8;

646 uint8_t *dest_y = c->scratchpad + offset;

647 if(s->quarter_sample){

648 uint8_t *ref= c->ref[block][0] + (mx4>>2) + (my4>>2)*stride;

649 dxy = ((my4 & 3) << 2) | (mx4 & 3);

650

651 if(s->no_rounding)

652 s->qdsp.put_no_rnd_qpel_pixels_tab[1][dxy](dest_y, ref, stride);

653 else

654 s->qdsp.put_qpel_pixels_tab[1][dxy](dest_y, ref, stride);

655 }else{

656 uint8_t *ref= c->ref[block][0] + (mx4>>1) + (my4>>1)*stride;

657 dxy = ((my4 & 1) << 1) | (mx4 & 1);

658

659 if(s->no_rounding)

660 s->hdsp.put_no_rnd_pixels_tab[1][dxy](dest_y , ref , stride, h);

661 else

662 s->hdsp.put_pixels_tab [1][dxy](dest_y , ref , stride, h);

663 }

664 dmin_sum+= (mv_penalty[mx4-pred_x4] + mv_penalty[my4-pred_y4])*c->mb_penalty_factor;

665 }else

666 dmin_sum+= dmin4;

667

668 if(s->quarter_sample){

669 mx4_sum+= mx4/2;

670 my4_sum+= my4/2;

671 }else{

672 mx4_sum+= mx4;

673 my4_sum+= my4;

674 }

675

676 s->current_picture.motion_val[0][s->block_index[block]][0] = mx4;

677 s->current_picture.motion_val[0][s->block_index[block]][1] = my4;

678

679 if(mx4 != mx || my4 != my) same=0;

680 }

681

682 if(same)

683 return INT_MAX;

684

685 if (s->mecc.me_sub_cmp[0] != s->mecc.mb_cmp[0]) {

686 dmin_sum += s->mecc.mb_cmp[0](s,

687 s->new_picture.f->data[0] +

688 s->mb_x * 16 + s->mb_y * 16 * stride,

689 c->scratchpad, stride, 16);

690 }

691

692 if(c->avctx->mb_cmp&FF_CMP_CHROMA){

693 int dxy;

694 int mx, my;

695 int offset;

696

697 mx= ff_h263_round_chroma(mx4_sum);

698 my= ff_h263_round_chroma(my4_sum);

699 dxy = ((my & 1) << 1) | (mx & 1);

700

701 offset= (s->mb_x*8 + (mx>>1)) + (s->mb_y*8 + (my>>1))*s->uvlinesize;

702

703 if(s->no_rounding){

704 s->hdsp.put_no_rnd_pixels_tab[1][dxy](c->scratchpad , s->last_picture.f->data[1] + offset, s->uvlinesize, 8);

705 s->hdsp.put_no_rnd_pixels_tab[1][dxy](c->scratchpad + 8, s->last_picture.f->data[2] + offset, s->uvlinesize, 8);

706 }else{

707 s->hdsp.put_pixels_tab [1][dxy](c->scratchpad , s->last_picture.f->data[1] + offset, s->uvlinesize, 8);

708 s->hdsp.put_pixels_tab [1][dxy](c->scratchpad + 8, s->last_picture.f->data[2] + offset, s->uvlinesize, 8);

709 }

710

711 dmin_sum += s->mecc.mb_cmp[1](s, s->new_picture.f->data[1] + s->mb_x * 8 + s->mb_y * 8 * s->uvlinesize, c->scratchpad, s->uvlinesize, 8);

712 dmin_sum += s->mecc.mb_cmp[1](s, s->new_picture.f->data[2] + s->mb_x * 8 + s->mb_y * 8 * s->uvlinesize, c->scratchpad + 8, s->uvlinesize, 8);

713 }

714

715 c->pred_x= mx;

716 c->pred_y= my;

717

718 switch(c->avctx->mb_cmp&0xFF){

719 /*case FF_CMP_SSE:

720 return dmin_sum+ 32*s->qscale*s->qscale;*/

721 case FF_CMP_RD:

722 return dmin_sum;

723 default:

724 return dmin_sum+ 11*c->mb_penalty_factor;

725 }

726 }

727

728 static inline void init_interlaced_ref(MpegEncContext *s, int ref_index){

729 MotionEstContext * const c= &s->me;

730

731 c->ref[1+ref_index][0] = c->ref[0+ref_index][0] + s->linesize;

732 c->src[1][0] = c->src[0][0] + s->linesize;

733 if(c->flags & FLAG_CHROMA){

734 c->ref[1+ref_index][1] = c->ref[0+ref_index][1] + s->uvlinesize;

735 c->ref[1+ref_index][2] = c->ref[0+ref_index][2] + s->uvlinesize;

736 c->src[1][1] = c->src[0][1] + s->uvlinesize;

737 c->src[1][2] = c->src[0][2] + s->uvlinesize;

738 }

739 }

740

741 static int interlaced_search(MpegEncContext *s, int ref_index,

742 int16_t (*mv_tables[2][2])[2], uint8_t *field_select_tables[2], int mx, int my, int user_field_select)

743 {

744 MotionEstContext * const c= &s->me;

745 const int size=0;

746 const int h=8;

747 int block;

748 int P[10][2];

749 uint8_t * const mv_penalty= c->current_mv_penalty;

750 int same=1;

751 const int stride= 2*s->linesize;

752 int dmin_sum= 0;

753 const int mot_stride= s->mb_stride;

754 const int xy= s->mb_x + s->mb_y*mot_stride;

755

756 c->ymin>>=1;

757 c->ymax>>=1;

758 c->stride<<=1;

759 c->uvstride<<=1;

760 init_interlaced_ref(s, ref_index);

761

762 for(block=0; block<2; block++){

763 int field_select;

764 int best_dmin= INT_MAX;

765 int best_field= -1;

766

767 for(field_select=0; field_select<2; field_select++){

768 int dmin, mx_i, my_i;

769 int16_t (*mv_table)[2]= mv_tables[block][field_select];

770

771 if(user_field_select){

772 av_assert1(field_select==0 || field_select==1);

773 av_assert1(field_select_tables[block][xy]==0 || field_select_tables[block][xy]==1);

774 if(field_select_tables[block][xy] != field_select)

775 continue;

776 }

777

778 P_LEFT[0] = mv_table[xy - 1][0];

779 P_LEFT[1] = mv_table[xy - 1][1];

780 if(P_LEFT[0] > (c->xmax<<1)) P_LEFT[0] = (c->xmax<<1);

781

782 c->pred_x= P_LEFT[0];

783 c->pred_y= P_LEFT[1];

784

785 if(!s->first_slice_line){

786 P_TOP[0] = mv_table[xy - mot_stride][0];

787 P_TOP[1] = mv_table[xy - mot_stride][1];

788 P_TOPRIGHT[0] = mv_table[xy - mot_stride + 1][0];

789 P_TOPRIGHT[1] = mv_table[xy - mot_stride + 1][1];

790 if(P_TOP[1] > (c->ymax<<1)) P_TOP[1] = (c->ymax<<1);

791 if(P_TOPRIGHT[0] < (c->xmin<<1)) P_TOPRIGHT[0]= (c->xmin<<1);

792 if(P_TOPRIGHT[0] > (c->xmax<<1)) P_TOPRIGHT[0]= (c->xmax<<1);

793 if(P_TOPRIGHT[1] > (c->ymax<<1)) P_TOPRIGHT[1]= (c->ymax<<1);

794

795 P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);

796 P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);

797 }

798 P_MV1[0]= mx; //FIXME not correct if block != field_select

799 P_MV1[1]= my / 2;

800

801 dmin = epzs_motion_search2(s, &mx_i, &my_i, P, block, field_select+ref_index, mv_table, (1<<16)>>1);

802

803 dmin= c->sub_motion_search(s, &mx_i, &my_i, dmin, block, field_select+ref_index, size, h);

804

805 mv_table[xy][0]= mx_i;

806 mv_table[xy][1]= my_i;

807

808 if (s->mecc.me_sub_cmp[0] != s->mecc.mb_cmp[0]) {

809 int dxy;

810

811 //FIXME chroma ME

812 uint8_t *ref= c->ref[field_select+ref_index][0] + (mx_i>>1) + (my_i>>1)*stride;

813 dxy = ((my_i & 1) << 1) | (mx_i & 1);

814

815 if(s->no_rounding){

816 s->hdsp.put_no_rnd_pixels_tab[size][dxy](c->scratchpad, ref , stride, h);

817 }else{

818 s->hdsp.put_pixels_tab [size][dxy](c->scratchpad, ref , stride, h);

819 }

820 dmin = s->mecc.mb_cmp[size](s, c->src[block][0], c->scratchpad, stride, h);

821 dmin+= (mv_penalty[mx_i-c->pred_x] + mv_penalty[my_i-c->pred_y] + 1)*c->mb_penalty_factor;

822 }else

823 dmin+= c->mb_penalty_factor; //field_select bits

824

825 dmin += field_select != block; //slightly prefer same field

826

827 if(dmin < best_dmin){

828 best_dmin= dmin;

829 best_field= field_select;

830 }

831 }

832 {

833 int16_t (*mv_table)[2]= mv_tables[block][best_field];

834

835 if(mv_table[xy][0] != mx) same=0; //FIXME check if these checks work and are any good at all

836 if(mv_table[xy][1]&1) same=0;

837 if(mv_table[xy][1]*2 != my) same=0;

838 if(best_field != block) same=0;

839 }

840

841 field_select_tables[block][xy]= best_field;

842 dmin_sum += best_dmin;

843 }

844

845 c->ymin<<=1;

846 c->ymax<<=1;

847 c->stride>>=1;

848 c->uvstride>>=1;

849

850 if(same)

851 return INT_MAX;

852

853 switch(c->avctx->mb_cmp&0xFF){

854 /*case FF_CMP_SSE:

855 return dmin_sum+ 32*s->qscale*s->qscale;*/

856 case FF_CMP_RD:

857 return dmin_sum;

858 default:

859 return dmin_sum+ 11*c->mb_penalty_factor;

860 }

861 }

862

863 static inline int get_penalty_factor(int lambda, int lambda2, int type){

864 switch(type&0xFF){

865 default:

866 case FF_CMP_SAD:

867 return lambda>>FF_LAMBDA_SHIFT;

868 case FF_CMP_DCT:

869 return (3*lambda)>>(FF_LAMBDA_SHIFT+1);

870 case FF_CMP_W53:

871 return (4*lambda)>>(FF_LAMBDA_SHIFT);

872 case FF_CMP_W97:

873 return (2*lambda)>>(FF_LAMBDA_SHIFT);

874 case FF_CMP_SATD:

875 case FF_CMP_DCT264:

876 return (2*lambda)>>FF_LAMBDA_SHIFT;

877 case FF_CMP_RD:

878 case FF_CMP_PSNR:

879 case FF_CMP_SSE:

880 case FF_CMP_NSSE:

881 return lambda2>>FF_LAMBDA_SHIFT;

882 case FF_CMP_BIT:

883 return 1;

884 }

885 }

886

887 void ff_estimate_p_frame_motion(MpegEncContext * s,

888 int mb_x, int mb_y)

889 {

890 MotionEstContext * const c= &s->me;

891 uint8_t *pix, *ppix;

892 int sum, mx, my, dmin;

893 int varc; ///< the variance of the block (sum of squared (p[y][x]-average))

894 int vard; ///< sum of squared differences with the estimated motion vector

895 int P[10][2];

896 const int shift= 1+s->quarter_sample;

897 int mb_type=0;

898 Picture * const pic= &s->current_picture;

899

900 init_ref(c, s->new_picture.f->data, s->last_picture.f->data, NULL, 16*mb_x, 16*mb_y, 0);

901

902 av_assert0(s->quarter_sample==0 || s->quarter_sample==1);

903 av_assert0(s->linesize == c->stride);

904 av_assert0(s->uvlinesize == c->uvstride);

905

906 c->penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_cmp);

907 c->sub_penalty_factor= get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_sub_cmp);

908 c->mb_penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->mb_cmp);

909 c->current_mv_penalty= c->mv_penalty[s->f_code] + MAX_MV;

910

911 get_limits(s, 16*mb_x, 16*mb_y);

912 c->skip=0;

913

914 /* intra / predictive decision */

915 pix = c->src[0][0];

916 sum = s->mpvencdsp.pix_sum(pix, s->linesize);

917 varc = s->mpvencdsp.pix_norm1(pix, s->linesize) -

918 (((unsigned) sum * sum) >> 8) + 500;

919

920 pic->mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;

921 pic->mb_var [s->mb_stride * mb_y + mb_x] = (varc+128)>>8;

922 c->mb_var_sum_temp += (varc+128)>>8;

923

924 switch(s->me_method) {

925 case ME_ZERO:

926 default:

927 mx = 0;

928 my = 0;

929 dmin = 0;

930 break;

931 case ME_X1:

932 case ME_EPZS:

933 {

934 const int mot_stride = s->b8_stride;

935 const int mot_xy = s->block_index[0];

936

937 P_LEFT[0] = s->current_picture.motion_val[0][mot_xy - 1][0];

938 P_LEFT[1] = s->current_picture.motion_val[0][mot_xy - 1][1];

939

940 if(P_LEFT[0] > (c->xmax<<shift)) P_LEFT[0] = (c->xmax<<shift);

941

942 if(!s->first_slice_line) {

943 P_TOP[0] = s->current_picture.motion_val[0][mot_xy - mot_stride ][0];

944 P_TOP[1] = s->current_picture.motion_val[0][mot_xy - mot_stride ][1];

945 P_TOPRIGHT[0] = s->current_picture.motion_val[0][mot_xy - mot_stride + 2][0];

946 P_TOPRIGHT[1] = s->current_picture.motion_val[0][mot_xy - mot_stride + 2][1];

947 if(P_TOP[1] > (c->ymax<<shift)) P_TOP[1] = (c->ymax<<shift);

948 if(P_TOPRIGHT[0] < (c->xmin<<shift)) P_TOPRIGHT[0]= (c->xmin<<shift);

949 if(P_TOPRIGHT[1] > (c->ymax<<shift)) P_TOPRIGHT[1]= (c->ymax<<shift);

950

951 P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);

952 P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);

953

954 if(s->out_format == FMT_H263){

955 c->pred_x = P_MEDIAN[0];

956 c->pred_y = P_MEDIAN[1];

957 }else { /* mpeg1 at least */

958 c->pred_x= P_LEFT[0];

959 c->pred_y= P_LEFT[1];

960 }

961 }else{

962 c->pred_x= P_LEFT[0];

963 c->pred_y= P_LEFT[1];

964 }

965

966 }

967 dmin = ff_epzs_motion_search(s, &mx, &my, P, 0, 0, s->p_mv_table, (1<<16)>>shift, 0, 16);

968

969 break;

970 }

971

972 /* At this point (mx,my) are full-pell and the relative displacement */

973 ppix = c->ref[0][0] + (my * s->linesize) + mx;

974

975 vard = s->mecc.sse[0](NULL, pix, ppix, s->linesize, 16);

976

977 pic->mc_mb_var[s->mb_stride * mb_y + mb_x] = (vard+128)>>8;

978 c->mc_mb_var_sum_temp += (vard+128)>>8;

979

980 if (c->avctx->mb_decision > FF_MB_DECISION_SIMPLE) {

981 int p_score= FFMIN(vard, varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*100);

982 int i_score= varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*20;

983 c->scene_change_score+= ff_sqrt(p_score) - ff_sqrt(i_score);

984

985 if (vard*2 + 200*256 > varc)

986 mb_type|= CANDIDATE_MB_TYPE_INTRA;

987 if (varc*2 + 200*256 > vard || s->qscale > 24){

988 // if (varc*2 + 200*256 + 50*(s->lambda2>>FF_LAMBDA_SHIFT) > vard){

989 mb_type|= CANDIDATE_MB_TYPE_INTER;

990 c->sub_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);

991 if (s->mpv_flags & FF_MPV_FLAG_MV0)

992 if(mx || my)

993 mb_type |= CANDIDATE_MB_TYPE_SKIPPED; //FIXME check difference

994 }else{

995 mx <<=shift;

996 my <<=shift;

997 }

998 if((s->flags&CODEC_FLAG_4MV)

999 && !c->skip && varc>50<<8 && vard>10<<8){

1000 if(h263_mv4_search(s, mx, my, shift) < INT_MAX)

1001 mb_type|=CANDIDATE_MB_TYPE_INTER4V;

1002

1003 set_p_mv_tables(s, mx, my, 0);

1004 }else

1005 set_p_mv_tables(s, mx, my, 1);

1006 if((s->flags&CODEC_FLAG_INTERLACED_ME)

1007 && !c->skip){ //FIXME varc/d checks

1008 if(interlaced_search(s, 0, s->p_field_mv_table, s->p_field_select_table, mx, my, 0) < INT_MAX)

1009 mb_type |= CANDIDATE_MB_TYPE_INTER_I;

1010 }

1011 }else{

1012 int intra_score, i;

1013 mb_type= CANDIDATE_MB_TYPE_INTER;

1014

1015 dmin= c->sub_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);

1016 if(c->avctx->me_sub_cmp != c->avctx->mb_cmp && !c->skip)

1017 dmin= get_mb_score(s, mx, my, 0, 0, 0, 16, 1);

1018

1019 if((s->flags&CODEC_FLAG_4MV)

1020 && !c->skip && varc>50<<8 && vard>10<<8){

1021 int dmin4= h263_mv4_search(s, mx, my, shift);

1022 if(dmin4 < dmin){

1023 mb_type= CANDIDATE_MB_TYPE_INTER4V;

1024 dmin=dmin4;

1025 }

1026 }

1027 if((s->flags&CODEC_FLAG_INTERLACED_ME)

1028 && !c->skip){ //FIXME varc/d checks

1029 int dmin_i= interlaced_search(s, 0, s->p_field_mv_table, s->p_field_select_table, mx, my, 0);

1030 if(dmin_i < dmin){

1031 mb_type = CANDIDATE_MB_TYPE_INTER_I;

1032 dmin= dmin_i;

1033 }

1034 }

1035

1036 set_p_mv_tables(s, mx, my, mb_type!=CANDIDATE_MB_TYPE_INTER4V);

1037

1038 /* get intra luma score */

1039 if((c->avctx->mb_cmp&0xFF)==FF_CMP_SSE){

1040 intra_score= varc - 500;

1041 }else{

1042 unsigned mean = (sum+128)>>8;

1043 mean*= 0x01010101;

1044

1045 for(i=0; i<16; i++){

1046 *(uint32_t*)(&c->scratchpad[i*s->linesize+ 0]) = mean;

1047 *(uint32_t*)(&c->scratchpad[i*s->linesize+ 4]) = mean;

1048 *(uint32_t*)(&c->scratchpad[i*s->linesize+ 8]) = mean;

1049 *(uint32_t*)(&c->scratchpad[i*s->linesize+12]) = mean;

1050 }

1051

1052 intra_score= s->mecc.mb_cmp[0](s, c->scratchpad, pix, s->linesize, 16);

1053 }

1054 intra_score += c->mb_penalty_factor*16;

1055

1056 if(intra_score < dmin){

1057 mb_type= CANDIDATE_MB_TYPE_INTRA;

1058 s->current_picture.mb_type[mb_y*s->mb_stride + mb_x] = CANDIDATE_MB_TYPE_INTRA; //FIXME cleanup

1059 }else

1060 s->current_picture.mb_type[mb_y*s->mb_stride + mb_x] = 0;

1061

1062 {

1063 int p_score= FFMIN(vard, varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*100);

1064 int i_score= varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*20;

1065 c->scene_change_score+= ff_sqrt(p_score) - ff_sqrt(i_score);

1066 }

1067 }

1068

1069 s->mb_type[mb_y*s->mb_stride + mb_x]= mb_type;

1070 }

1071

1072 int ff_pre_estimate_p_frame_motion(MpegEncContext * s,

1073 int mb_x, int mb_y)

1074 {

1075 MotionEstContext * const c= &s->me;

1076 int mx, my, dmin;

1077 int P[10][2];

1078 const int shift= 1+s->quarter_sample;

1079 const int xy= mb_x + mb_y*s->mb_stride;

1080 init_ref(c, s->new_picture.f->data, s->last_picture.f->data, NULL, 16*mb_x, 16*mb_y, 0);

1081

1082 av_assert0(s->quarter_sample==0 || s->quarter_sample==1);

1083

1084 c->pre_penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_pre_cmp);

1085 c->current_mv_penalty= c->mv_penalty[s->f_code] + MAX_MV;

1086

1087 get_limits(s, 16*mb_x, 16*mb_y);

1088 c->skip=0;

1089

1090 P_LEFT[0] = s->p_mv_table[xy + 1][0];

1091 P_LEFT[1] = s->p_mv_table[xy + 1][1];

1092

1093 if(P_LEFT[0] < (c->xmin<<shift)) P_LEFT[0] = (c->xmin<<shift);

1094

1095 /* special case for first line */

1096 if (s->first_slice_line) {

1097 c->pred_x= P_LEFT[0];

1098 c->pred_y= P_LEFT[1];

1099 P_TOP[0]= P_TOPRIGHT[0]= P_MEDIAN[0]=

1100 P_TOP[1]= P_TOPRIGHT[1]= P_MEDIAN[1]= 0; //FIXME

1101 } else {

1102 P_TOP[0] = s->p_mv_table[xy + s->mb_stride ][0];

1103 P_TOP[1] = s->p_mv_table[xy + s->mb_stride ][1];

1104 P_TOPRIGHT[0] = s->p_mv_table[xy + s->mb_stride - 1][0];

1105 P_TOPRIGHT[1] = s->p_mv_table[xy + s->mb_stride - 1][1];

1106 if(P_TOP[1] < (c->ymin<<shift)) P_TOP[1] = (c->ymin<<shift);

1107 if(P_TOPRIGHT[0] > (c->xmax<<shift)) P_TOPRIGHT[0]= (c->xmax<<shift);

1108 if(P_TOPRIGHT[1] < (c->ymin<<shift)) P_TOPRIGHT[1]= (c->ymin<<shift);

1109

1110 P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);

1111 P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);

1112

1113 c->pred_x = P_MEDIAN[0];

1114 c->pred_y = P_MEDIAN[1];

1115 }

1116

1117 dmin = ff_epzs_motion_search(s, &mx, &my, P, 0, 0, s->p_mv_table, (1<<16)>>shift, 0, 16);

1118

1119 s->p_mv_table[xy][0] = mx<<shift;

1120 s->p_mv_table[xy][1] = my<<shift;

1121

1122 return dmin;

1123 }

1124

1125 static int estimate_motion_b(MpegEncContext *s, int mb_x, int mb_y,

1126 int16_t (*mv_table)[2], int ref_index, int f_code)

1127 {

1128 MotionEstContext * const c= &s->me;

1129 int mx, my, dmin;

1130 int P[10][2];

1131 const int shift= 1+s->quarter_sample;

1132 const int mot_stride = s->mb_stride;

1133 const int mot_xy = mb_y*mot_stride + mb_x;

1134 uint8_t * const mv_penalty= c->mv_penalty[f_code] + MAX_MV;

1135 int mv_scale;

1136

1137 c->penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_cmp);

1138 c->sub_penalty_factor= get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_sub_cmp);

1139 c->mb_penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->mb_cmp);

1140 c->current_mv_penalty= mv_penalty;

1141

1142 get_limits(s, 16*mb_x, 16*mb_y);

1143

1144 switch(s->me_method) {

1145 case ME_ZERO:

1146 default:

1147 mx = 0;

1148 my = 0;

1149 dmin = 0;

1150 break;

1151 case ME_X1:

1152 case ME_EPZS:

1153 P_LEFT[0] = mv_table[mot_xy - 1][0];

1154 P_LEFT[1] = mv_table[mot_xy - 1][1];

1155

1156 if (P_LEFT[0] > (c->xmax << shift)) P_LEFT[0] = (c->xmax << shift);

1157

1158 /* special case for first line */

1159 if (!s->first_slice_line) {

1160 P_TOP[0] = mv_table[mot_xy - mot_stride ][0];

1161 P_TOP[1] = mv_table[mot_xy - mot_stride ][1];

1162 P_TOPRIGHT[0] = mv_table[mot_xy - mot_stride + 1][0];

1163 P_TOPRIGHT[1] = mv_table[mot_xy - mot_stride + 1][1];

1164 if (P_TOP[1] > (c->ymax << shift)) P_TOP[1] = (c->ymax << shift);

1165 if (P_TOPRIGHT[0] < (c->xmin << shift)) P_TOPRIGHT[0] = (c->xmin << shift);

1166 if (P_TOPRIGHT[1] > (c->ymax << shift)) P_TOPRIGHT[1] = (c->ymax << shift);

1167

1168 P_MEDIAN[0] = mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);

1169 P_MEDIAN[1] = mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);

1170 }

1171 c->pred_x = P_LEFT[0];

1172 c->pred_y = P_LEFT[1];

1173

1174 if(mv_table == s->b_forw_mv_table){

1175 mv_scale= (s->pb_time<<16) / (s->pp_time<<shift);

1176 }else{

1177 mv_scale= ((s->pb_time - s->pp_time)<<16) / (s->pp_time<<shift);

1178 }

1179

1180 dmin = ff_epzs_motion_search(s, &mx, &my, P, 0, ref_index, s->p_mv_table, mv_scale, 0, 16);

1181

1182 break;

1183 }

1184

1185 dmin= c->sub_motion_search(s, &mx, &my, dmin, 0, ref_index, 0, 16);

1186

1187 if(c->avctx->me_sub_cmp != c->avctx->mb_cmp && !c->skip)

1188 dmin= get_mb_score(s, mx, my, 0, ref_index, 0, 16, 1);

1189

1190 // s->mb_type[mb_y*s->mb_width + mb_x]= mb_type;

1191 mv_table[mot_xy][0]= mx;

1192 mv_table[mot_xy][1]= my;

1193

1194 return dmin;

1195 }

1196

1197 static inline int check_bidir_mv(MpegEncContext * s,

1198 int motion_fx, int motion_fy,

1199 int motion_bx, int motion_by,

1200 int pred_fx, int pred_fy,

1201 int pred_bx, int pred_by,

1202 int size, int h)

1203 {

1204 //FIXME optimize?

1205 //FIXME better f_code prediction (max mv & distance)

1206 //FIXME pointers

1207 MotionEstContext * const c= &s->me;

1208 uint8_t * const mv_penalty_f= c->mv_penalty[s->f_code] + MAX_MV; // f_code of the prev frame

1209 uint8_t * const mv_penalty_b= c->mv_penalty[s->b_code] + MAX_MV; // f_code of the prev frame

1210 int stride= c->stride;

1211 uint8_t *dest_y = c->scratchpad;

1212 uint8_t *ptr;

1213 int dxy;

1214 int src_x, src_y;

1215 int fbmin;

1216 uint8_t **src_data= c->src[0];

1217 uint8_t **ref_data= c->ref[0];

1218 uint8_t **ref2_data= c->ref[2];

1219

1220 if(s->quarter_sample){

1221 dxy = ((motion_fy & 3) << 2) | (motion_fx & 3);

1222 src_x = motion_fx >> 2;

1223 src_y = motion_fy >> 2;

1224

1225 ptr = ref_data[0] + (src_y * stride) + src_x;

1226 s->qdsp.put_qpel_pixels_tab[0][dxy](dest_y, ptr, stride);

1227

1228 dxy = ((motion_by & 3) << 2) | (motion_bx & 3);

1229 src_x = motion_bx >> 2;

1230 src_y = motion_by >> 2;

1231

1232 ptr = ref2_data[0] + (src_y * stride) + src_x;

1233 s->qdsp.avg_qpel_pixels_tab[size][dxy](dest_y, ptr, stride);

1234 }else{

1235 dxy = ((motion_fy & 1) << 1) | (motion_fx & 1);

1236 src_x = motion_fx >> 1;

1237 src_y = motion_fy >> 1;

1238

1239 ptr = ref_data[0] + (src_y * stride) + src_x;

1240 s->hdsp.put_pixels_tab[size][dxy](dest_y , ptr , stride, h);

1241

1242 dxy = ((motion_by & 1) << 1) | (motion_bx & 1);

1243 src_x = motion_bx >> 1;

1244 src_y = motion_by >> 1;

1245

1246 ptr = ref2_data[0] + (src_y * stride) + src_x;

1247 s->hdsp.avg_pixels_tab[size][dxy](dest_y , ptr , stride, h);

1248 }

1249

1250 fbmin = (mv_penalty_f[motion_fx-pred_fx] + mv_penalty_f[motion_fy-pred_fy])*c->mb_penalty_factor

1251 +(mv_penalty_b[motion_bx-pred_bx] + mv_penalty_b[motion_by-pred_by])*c->mb_penalty_factor

1252 + s->mecc.mb_cmp[size](s, src_data[0], dest_y, stride, h); // FIXME new_pic

1253

1254 if(c->avctx->mb_cmp&FF_CMP_CHROMA){

1255 }

1256 //FIXME CHROMA !!!

1257

1258 return fbmin;

1259 }

1260

1261 /* refine the bidir vectors in hq mode and return the score in both lq & hq mode*/

1262 static inline int bidir_refine(MpegEncContext * s, int mb_x, int mb_y)

1263 {

1264 MotionEstContext * const c= &s->me;

1265 const int mot_stride = s->mb_stride;

1266 const int xy = mb_y *mot_stride + mb_x;

1267 int fbmin;

1268 int pred_fx= s->b_bidir_forw_mv_table[xy-1][0];

1269 int pred_fy= s->b_bidir_forw_mv_table[xy-1][1];

1270 int pred_bx= s->b_bidir_back_mv_table[xy-1][0];

1271 int pred_by= s->b_bidir_back_mv_table[xy-1][1];

1272 int motion_fx= s->b_bidir_forw_mv_table[xy][0]= s->b_forw_mv_table[xy][0];

1273 int motion_fy= s->b_bidir_forw_mv_table[xy][1]= s->b_forw_mv_table[xy][1];

1274 int motion_bx= s->b_bidir_back_mv_table[xy][0]= s->b_back_mv_table[xy][0];

1275 int motion_by= s->b_bidir_back_mv_table[xy][1]= s->b_back_mv_table[xy][1];

1276 const int flags= c->sub_flags;

1277 const int qpel= flags&FLAG_QPEL;

1278 const int shift= 1+qpel;

1279 const int xmin= c->xmin<<shift;

1280 const int ymin= c->ymin<<shift;

1281 const int xmax= c->xmax<<shift;

1282 const int ymax= c->ymax<<shift;

1283 #define HASH(fx,fy,bx,by) ((fx)+17*(fy)+63*(bx)+117*(by))

1284 #define HASH8(fx,fy,bx,by) ((uint8_t)HASH(fx,fy,bx,by))

1285 int hashidx= HASH(motion_fx,motion_fy, motion_bx, motion_by);

1286 uint8_t map[256] = { 0 };

1287

1288 map[hashidx&255] = 1;

1289

1290 fbmin= check_bidir_mv(s, motion_fx, motion_fy,

1291 motion_bx, motion_by,

1292 pred_fx, pred_fy,

1293 pred_bx, pred_by,

1294 0, 16);

1295

1296 if(s->avctx->bidir_refine){

1297 int end;

1298 static const uint8_t limittab[5]={0,8,32,64,80};

1299 const int limit= limittab[s->avctx->bidir_refine];

1300 static const int8_t vect[][4]={

1301 { 0, 0, 0, 1}, { 0, 0, 0,-1}, { 0, 0, 1, 0}, { 0, 0,-1, 0}, { 0, 1, 0, 0}, { 0,-1, 0, 0}, { 1, 0, 0, 0}, {-1, 0, 0, 0},

1302

1303 { 0, 0, 1, 1}, { 0, 0,-1,-1}, { 0, 1, 1, 0}, { 0,-1,-1, 0}, { 1, 1, 0, 0}, {-1,-1, 0, 0}, { 1, 0, 0, 1}, {-1, 0, 0,-1},

1304 { 0, 1, 0, 1}, { 0,-1, 0,-1}, { 1, 0, 1, 0}, {-1, 0,-1, 0},

1305 { 0, 0,-1, 1}, { 0, 0, 1,-1}, { 0,-1, 1, 0}, { 0, 1,-1, 0}, {-1, 1, 0, 0}, { 1,-1, 0, 0}, { 1, 0, 0,-1}, {-1, 0, 0, 1},

1306 { 0,-1, 0, 1}, { 0, 1, 0,-1}, {-1, 0, 1, 0}, { 1, 0,-1, 0},

1307

1308 { 0, 1, 1, 1}, { 0,-1,-1,-1}, { 1, 1, 1, 0}, {-1,-1,-1, 0}, { 1, 1, 0, 1}, {-1,-1, 0,-1}, { 1, 0, 1, 1}, {-1, 0,-1,-1},

1309 { 0,-1, 1, 1}, { 0, 1,-1,-1}, {-1, 1, 1, 0}, { 1,-1,-1, 0}, { 1, 1, 0,-1}, {-1,-1, 0, 1}, { 1, 0,-1, 1}, {-1, 0, 1,-1},

1310 { 0, 1,-1, 1}, { 0,-1, 1,-1}, { 1,-1, 1, 0}, {-1, 1,-1, 0}, {-1, 1, 0, 1}, { 1,-1, 0,-1}, { 1, 0, 1,-1}, {-1, 0,-1, 1},

1311 { 0, 1, 1,-1}, { 0,-1,-1, 1}, { 1, 1,-1, 0}, {-1,-1, 1, 0}, { 1,-1, 0, 1}, {-1, 1, 0,-1}, {-1, 0, 1, 1}, { 1, 0,-1,-1},

1312

1313 { 1, 1, 1, 1}, {-1,-1,-1,-1},

1314 { 1, 1, 1,-1}, {-1,-1,-1, 1}, { 1, 1,-1, 1}, {-1,-1, 1,-1}, { 1,-1, 1, 1}, {-1, 1,-1,-1}, {-1, 1, 1, 1}, { 1,-1,-1,-1},

1315 { 1, 1,-1,-1}, {-1,-1, 1, 1}, { 1,-1,-1, 1}, {-1, 1, 1,-1}, { 1,-1, 1,-1}, {-1, 1,-1, 1},

1316 };

1317 static const uint8_t hash[]={

1318 HASH8( 0, 0, 0, 1), HASH8( 0, 0, 0,-1), HASH8( 0, 0, 1, 0), HASH8( 0, 0,-1, 0), HASH8( 0, 1, 0, 0), HASH8( 0,-1, 0, 0), HASH8( 1, 0, 0, 0), HASH8(-1, 0, 0, 0),

1319

1320 HASH8( 0, 0, 1, 1), HASH8( 0, 0,-1,-1), HASH8( 0, 1, 1, 0), HASH8( 0,-1,-1, 0), HASH8( 1, 1, 0, 0), HASH8(-1,-1, 0, 0), HASH8( 1, 0, 0, 1), HASH8(-1, 0, 0,-1),

1321 HASH8( 0, 1, 0, 1), HASH8( 0,-1, 0,-1), HASH8( 1, 0, 1, 0), HASH8(-1, 0,-1, 0),

1322 HASH8( 0, 0,-1, 1), HASH8( 0, 0, 1,-1), HASH8( 0,-1, 1, 0), HASH8( 0, 1,-1, 0), HASH8(-1, 1, 0, 0), HASH8( 1,-1, 0, 0), HASH8( 1, 0, 0,-1), HASH8(-1, 0, 0, 1),

1323 HASH8( 0,-1, 0, 1), HASH8( 0, 1, 0,-1), HASH8(-1, 0, 1, 0), HASH8( 1, 0,-1, 0),

1324

1325 HASH8( 0, 1, 1, 1), HASH8( 0,-1,-1,-1), HASH8( 1, 1, 1, 0), HASH8(-1,-1,-1, 0), HASH8( 1, 1, 0, 1), HASH8(-1,-1, 0,-1), HASH8( 1, 0, 1, 1), HASH8(-1, 0,-1,-1),

1326 HASH8( 0,-1, 1, 1), HASH8( 0, 1,-1,-1), HASH8(-1, 1, 1, 0), HASH8( 1,-1,-1, 0), HASH8( 1, 1, 0,-1), HASH8(-1,-1, 0, 1), HASH8( 1, 0,-1, 1), HASH8(-1, 0, 1,-1),

1327 HASH8( 0, 1,-1, 1), HASH8( 0,-1, 1,-1), HASH8( 1,-1, 1, 0), HASH8(-1, 1,-1, 0), HASH8(-1, 1, 0, 1), HASH8( 1,-1, 0,-1), HASH8( 1, 0, 1,-1), HASH8(-1, 0,-1, 1),

1328 HASH8( 0, 1, 1,-1), HASH8( 0,-1,-1, 1), HASH8( 1, 1,-1, 0), HASH8(-1,-1, 1, 0), HASH8( 1,-1, 0, 1), HASH8(-1, 1, 0,-1), HASH8(-1, 0, 1, 1), HASH8( 1, 0,-1,-1),

1329

1330 HASH8( 1, 1, 1, 1), HASH8(-1,-1,-1,-1),

1331 HASH8( 1, 1, 1,-1), HASH8(-1,-1,-1, 1), HASH8( 1, 1,-1, 1), HASH8(-1,-1, 1,-1), HASH8( 1,-1, 1, 1), HASH8(-1, 1,-1,-1), HASH8(-1, 1, 1, 1), HASH8( 1,-1,-1,-1),

1332 HASH8( 1, 1,-1,-1), HASH8(-1,-1, 1, 1), HASH8( 1,-1,-1, 1), HASH8(-1, 1, 1,-1), HASH8( 1,-1, 1,-1), HASH8(-1, 1,-1, 1),

1333 };

1334

1335 #define CHECK_BIDIR(fx,fy,bx,by)\

1336 if( !map[(hashidx+HASH(fx,fy,bx,by))&255]\

1337 &&(fx<=0 || motion_fx+fx<=xmax) && (fy<=0 || motion_fy+fy<=ymax) && (bx<=0 || motion_bx+bx<=xmax) && (by<=0 || motion_by+by<=ymax)\

1338 &&(fx>=0 || motion_fx+fx>=xmin) && (fy>=0 || motion_fy+fy>=ymin) && (bx>=0 || motion_bx+bx>=xmin) && (by>=0 || motion_by+by>=ymin)){\

1339 int score;\

1340 map[(hashidx+HASH(fx,fy,bx,by))&255] = 1;\

1341 score= check_bidir_mv(s, motion_fx+fx, motion_fy+fy, motion_bx+bx, motion_by+by, pred_fx, pred_fy, pred_bx, pred_by, 0, 16);\

1342 if(score < fbmin){\

1343 hashidx += HASH(fx,fy,bx,by);\

1344 fbmin= score;\

1345 motion_fx+=fx;\

1346 motion_fy+=fy;\

1347 motion_bx+=bx;\

1348 motion_by+=by;\

1349 end=0;\

1350 }\

1351 }

1352 #define CHECK_BIDIR2(a,b,c,d)\

1353 CHECK_BIDIR(a,b,c,d)\

1354 CHECK_BIDIR(-(a),-(b),-(c),-(d))

1355

1356 do{

1357 int i;

1358 int borderdist=0;

1359 end=1;

1360

1361 CHECK_BIDIR2(0,0,0,1)

1362 CHECK_BIDIR2(0,0,1,0)

1363 CHECK_BIDIR2(0,1,0,0)

1364 CHECK_BIDIR2(1,0,0,0)

1365

1366 for(i=8; i<limit; i++){

1367 int fx= motion_fx+vect[i][0];

1368 int fy= motion_fy+vect[i][1];

1369 int bx= motion_bx+vect[i][2];

1370 int by= motion_by+vect[i][3];

1371 if(borderdist<=0){

1372 int a= (xmax - FFMAX(fx,bx))|(FFMIN(fx,bx) - xmin);

1373 int b= (ymax - FFMAX(fy,by))|(FFMIN(fy,by) - ymin);

1374 if((a|b) < 0)

1375 map[(hashidx+hash[i])&255] = 1;

1376 }

1377 if(!map[(hashidx+hash[i])&255]){

1378 int score;

1379 map[(hashidx+hash[i])&255] = 1;

1380 score= check_bidir_mv(s, fx, fy, bx, by, pred_fx, pred_fy, pred_bx, pred_by, 0, 16);

1381 if(score < fbmin){

1382 hashidx += hash[i];

1383 fbmin= score;

1384 motion_fx=fx;

1385 motion_fy=fy;

1386 motion_bx=bx;

1387 motion_by=by;

1388 end=0;

1389 borderdist--;

1390 if(borderdist<=0){

1391 int a= FFMIN(xmax - FFMAX(fx,bx), FFMIN(fx,bx) - xmin);

1392 int b= FFMIN(ymax - FFMAX(fy,by), FFMIN(fy,by) - ymin);

1393 borderdist= FFMIN(a,b);

1394 }

1395 }

1396 }

1397 }

1398 }while(!end);

1399 }

1400

1401 s->b_bidir_forw_mv_table[xy][0]= motion_fx;

1402 s->b_bidir_forw_mv_table[xy][1]= motion_fy;

1403 s->b_bidir_back_mv_table[xy][0]= motion_bx;

1404 s->b_bidir_back_mv_table[xy][1]= motion_by;

1405

1406 return fbmin;

1407 }

1408

1409 static inline int direct_search(MpegEncContext * s, int mb_x, int mb_y)

1410 {

1411 MotionEstContext * const c= &s->me;

1412 int P[10][2];

1413 const int mot_stride = s->mb_stride;

1414 const int mot_xy = mb_y*mot_stride + mb_x;

1415 const int shift= 1+s->quarter_sample;

1416 int dmin, i;

1417 const int time_pp= s->pp_time;

1418 const int time_pb= s->pb_time;

1419 int mx, my, xmin, xmax, ymin, ymax;

1420 int16_t (*mv_table)[2]= s->b_direct_mv_table;

1421

1422 c->current_mv_penalty= c->mv_penalty[1] + MAX_MV;

1423 ymin= xmin=(-32)>>shift;

1424 ymax= xmax= 31>>shift;

1425

1426 if (IS_8X8(s->next_picture.mb_type[mot_xy])) {

1427 s->mv_type= MV_TYPE_8X8;

1428 }else{

1429 s->mv_type= MV_TYPE_16X16;

1430 }

1431

1432 for(i=0; i<4; i++){

1433 int index= s->block_index[i];

1434 int min, max;

1435

1436 c->co_located_mv[i][0] = s->next_picture.motion_val[0][index][0];

1437 c->co_located_mv[i][1] = s->next_picture.motion_val[0][index][1];

1438 c->direct_basis_mv[i][0]= c->co_located_mv[i][0]*time_pb/time_pp + ((i& 1)<<(shift+3));

1439 c->direct_basis_mv[i][1]= c->co_located_mv[i][1]*time_pb/time_pp + ((i>>1)<<(shift+3));

1440 // c->direct_basis_mv[1][i][0]= c->co_located_mv[i][0]*(time_pb - time_pp)/time_pp + ((i &1)<<(shift+3);

1441 // c->direct_basis_mv[1][i][1]= c->co_located_mv[i][1]*(time_pb - time_pp)/time_pp + ((i>>1)<<(shift+3);

1442

1443 max= FFMAX(c->direct_basis_mv[i][0], c->direct_basis_mv[i][0] - c->co_located_mv[i][0])>>shift;

1444 min= FFMIN(c->direct_basis_mv[i][0], c->direct_basis_mv[i][0] - c->co_located_mv[i][0])>>shift;

1445 max+= 16*mb_x + 1; // +-1 is for the simpler rounding

1446 min+= 16*mb_x - 1;

1447 xmax= FFMIN(xmax, s->width - max);

1448 xmin= FFMAX(xmin, - 16 - min);

1449

1450 max= FFMAX(c->direct_basis_mv[i][1], c->direct_basis_mv[i][1] - c->co_located_mv[i][1])>>shift;

1451 min= FFMIN(c->direct_basis_mv[i][1], c->direct_basis_mv[i][1] - c->co_located_mv[i][1])>>shift;

1452 max+= 16*mb_y + 1; // +-1 is for the simpler rounding

1453 min+= 16*mb_y - 1;

1454 ymax= FFMIN(ymax, s->height - max);

1455 ymin= FFMAX(ymin, - 16 - min);

1456

1457 if(s->mv_type == MV_TYPE_16X16) break;

1458 }

1459

1460 av_assert2(xmax <= 15 && ymax <= 15 && xmin >= -16 && ymin >= -16);

1461

1462 if(xmax < 0 || xmin >0 || ymax < 0 || ymin > 0){

1463 s->b_direct_mv_table[mot_xy][0]= 0;

1464 s->b_direct_mv_table[mot_xy][1]= 0;

1465

1466 return 256*256*256*64;

1467 }

1468

1469 c->xmin= xmin;

1470 c->ymin= ymin;

1471 c->xmax= xmax;

1472 c->ymax= ymax;

1473 c->flags |= FLAG_DIRECT;

1474 c->sub_flags |= FLAG_DIRECT;

1475 c->pred_x=0;

1476 c->pred_y=0;

1477

1478 P_LEFT[0] = av_clip(mv_table[mot_xy - 1][0], xmin<<shift, xmax<<shift);

1479 P_LEFT[1] = av_clip(mv_table[mot_xy - 1][1], ymin<<shift, ymax<<shift);

1480

1481 /* special case for first line */

1482 if (!s->first_slice_line) { //FIXME maybe allow this over thread boundary as it is clipped

1483 P_TOP[0] = av_clip(mv_table[mot_xy - mot_stride ][0], xmin<<shift, xmax<<shift);

1484 P_TOP[1] = av_clip(mv_table[mot_xy - mot_stride ][1], ymin<<shift, ymax<<shift);

1485 P_TOPRIGHT[0] = av_clip(mv_table[mot_xy - mot_stride + 1 ][0], xmin<<shift, xmax<<shift);

1486 P_TOPRIGHT[1] = av_clip(mv_table[mot_xy - mot_stride + 1 ][1], ymin<<shift, ymax<<shift);

1487

1488 P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);

1489 P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);

1490 }

1491

1492 dmin = ff_epzs_motion_search(s, &mx, &my, P, 0, 0, mv_table, 1<<(16-shift), 0, 16);

1493 if(c->sub_flags&FLAG_QPEL)

1494 dmin = qpel_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);

1495 else

1496 dmin = hpel_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);

1497

1498 if(c->avctx->me_sub_cmp != c->avctx->mb_cmp && !c->skip)

1499 dmin= get_mb_score(s, mx, my, 0, 0, 0, 16, 1);

1500

1501 get_limits(s, 16*mb_x, 16*mb_y); //restore c->?min/max, maybe not needed

1502

1503 mv_table[mot_xy][0]= mx;

1504 mv_table[mot_xy][1]= my;

1505 c->flags &= ~FLAG_DIRECT;

1506 c->sub_flags &= ~FLAG_DIRECT;

1507

1508 return dmin;

1509 }

1510

1511 void ff_estimate_b_frame_motion(MpegEncContext * s,

1512 int mb_x, int mb_y)

1513 {

1514 MotionEstContext * const c= &s->me;

1515 const int penalty_factor= c->mb_penalty_factor;

1516 int fmin, bmin, dmin, fbmin, bimin, fimin;

1517 int type=0;

1518 const int xy = mb_y*s->mb_stride + mb_x;

1519 init_ref(c, s->new_picture.f->data, s->last_picture.f->data,

1520 s->next_picture.f->data, 16 * mb_x, 16 * mb_y, 2);

1521

1522 get_limits(s, 16*mb_x, 16*mb_y);

1523

1524 c->skip=0;

1525

1526 if (s->codec_id == AV_CODEC_ID_MPEG4 && s->next_picture.mbskip_table[xy]) {

1527 int score= direct_search(s, mb_x, mb_y); //FIXME just check 0,0

1528

1529 score= ((unsigned)(score*score + 128*256))>>16;

1530 c->mc_mb_var_sum_temp += score;

1531 s->current_picture.mc_mb_var[mb_y*s->mb_stride + mb_x] = score; //FIXME use SSE

1532 s->mb_type[mb_y*s->mb_stride + mb_x]= CANDIDATE_MB_TYPE_DIRECT0;

1533

1534 return;

1535 }

1536

1537 if (s->codec_id == AV_CODEC_ID_MPEG4)

1538 dmin= direct_search(s, mb_x, mb_y);

1539 else

1540 dmin= INT_MAX;

1541 //FIXME penalty stuff for non mpeg4

1542 c->skip=0;

1543 fmin = estimate_motion_b(s, mb_x, mb_y, s->b_forw_mv_table, 0, s->f_code) +

1544 3 * penalty_factor;

1545

1546 c->skip=0;

1547 bmin = estimate_motion_b(s, mb_x, mb_y, s->b_back_mv_table, 2, s->b_code) +

1548 2 * penalty_factor;

1549 av_dlog(s, " %d %d ", s->b_forw_mv_table[xy][0], s->b_forw_mv_table[xy][1]);

1550

1551 c->skip=0;

1552 fbmin= bidir_refine(s, mb_x, mb_y) + penalty_factor;

1553 av_dlog(s, "%d %d %d %d\n", dmin, fmin, bmin, fbmin);

1554

1555 if(s->flags & CODEC_FLAG_INTERLACED_ME){

1556 //FIXME mb type penalty

1557 c->skip=0;

1558 c->current_mv_penalty= c->mv_penalty[s->f_code] + MAX_MV;

1559 fimin= interlaced_search(s, 0,

1560 s->b_field_mv_table[0], s->b_field_select_table[0],

1561 s->b_forw_mv_table[xy][0], s->b_forw_mv_table[xy][1], 0);

1562 c->current_mv_penalty= c->mv_penalty[s->b_code] + MAX_MV;

1563 bimin= interlaced_search(s, 2,

1564 s->b_field_mv_table[1], s->b_field_select_table[1],

1565 s->b_back_mv_table[xy][0], s->b_back_mv_table[xy][1], 0);

1566 }else

1567 fimin= bimin= INT_MAX;

1568

1569 {

1570 int score= fmin;

1571 type = CANDIDATE_MB_TYPE_FORWARD;

1572

1573 if (dmin <= score){

1574 score = dmin;

1575 type = CANDIDATE_MB_TYPE_DIRECT;

1576 }

1577 if(bmin<score){

1578 score=bmin;

1579 type= CANDIDATE_MB_TYPE_BACKWARD;

1580 }

1581 if(fbmin<score){

1582 score=fbmin;

1583 type= CANDIDATE_MB_TYPE_BIDIR;

1584 }

1585 if(fimin<score){

1586 score=fimin;

1587 type= CANDIDATE_MB_TYPE_FORWARD_I;

1588 }

1589 if(bimin<score){

1590 score=bimin;

1591 type= CANDIDATE_MB_TYPE_BACKWARD_I;

1592 }

1593

1594 score= ((unsigned)(score*score + 128*256))>>16;

1595 c->mc_mb_var_sum_temp += score;

1596 s->current_picture.mc_mb_var[mb_y*s->mb_stride + mb_x] = score; //FIXME use SSE

1597 }

1598

1599 if(c->avctx->mb_decision > FF_MB_DECISION_SIMPLE){

1600 type= CANDIDATE_MB_TYPE_FORWARD | CANDIDATE_MB_TYPE_BACKWARD | CANDIDATE_MB_TYPE_BIDIR | CANDIDATE_MB_TYPE_DIRECT;

1601 if(fimin < INT_MAX)

1602 type |= CANDIDATE_MB_TYPE_FORWARD_I;

1603 if(bimin < INT_MAX)

1604 type |= CANDIDATE_MB_TYPE_BACKWARD_I;

1605 if(fimin < INT_MAX && bimin < INT_MAX){

1606 type |= CANDIDATE_MB_TYPE_BIDIR_I;

1607 }

1608 //FIXME something smarter

1609 if(dmin>256*256*16) type&= ~CANDIDATE_MB_TYPE_DIRECT; //do not try direct mode if it is invalid for this MB

1610 if (s->codec_id == AV_CODEC_ID_MPEG4 && type&CANDIDATE_MB_TYPE_DIRECT &&

1611 s->mpv_flags & FF_MPV_FLAG_MV0 && *(uint32_t*)s->b_direct_mv_table[xy])

1612 type |= CANDIDATE_MB_TYPE_DIRECT0;

1613 }

1614

1615 s->mb_type[mb_y*s->mb_stride + mb_x]= type;

1616 }

1617

1618 /* find best f_code for ME which do unlimited searches */

1619 int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type)

1620 {

1621 if(s->me_method>=ME_EPZS){

1622 int score[8];

1623 int i, y, range= s->avctx->me_range ? s->avctx->me_range : (INT_MAX/2);

1624 uint8_t * fcode_tab= s->fcode_tab;

1625 int best_fcode=-1;

1626 int best_score=-10000000;

1627

1628 if(s->msmpeg4_version)

1629 range= FFMIN(range, 16);

1630 else if(s->codec_id == AV_CODEC_ID_MPEG2VIDEO && s->avctx->strict_std_compliance >= FF_COMPLIANCE_NORMAL)

1631 range= FFMIN(range, 256);

1632

1633 for(i=0; i<8; i++) score[i]= s->mb_num*(8-i);

1634

1635 for(y=0; y<s->mb_height; y++){

1636 int x;

1637 int xy= y*s->mb_stride;

1638 for(x=0; x<s->mb_width; x++){

1639 if(s->mb_type[xy] & type){

1640 int mx= mv_table[xy][0];

1641 int my= mv_table[xy][1];

1642 int fcode= FFMAX(fcode_tab[mx + MAX_MV],

1643 fcode_tab[my + MAX_MV]);

1644 int j;

1645

1646 if(mx >= range || mx < -range ||

1647 my >= range || my < -range)

1648 continue;

1649

1650 for(j=0; j<fcode && j<8; j++){

1651 if(s->pict_type==AV_PICTURE_TYPE_B || s->current_picture.mc_mb_var[xy] < s->current_picture.mb_var[xy])

1652 score[j]-= 170;

1653 }

1654 }

1655 xy++;

1656 }

1657 }

1658

1659 for(i=1; i<8; i++){

1660 if(score[i] > best_score){

1661 best_score= score[i];

1662 best_fcode= i;

1663 }

1664 }

1665

1666 return best_fcode;

1667 }else{

1668 return 1;

1669 }

1670 }

1671

1672 void ff_fix_long_p_mvs(MpegEncContext * s)

1673 {

1674 MotionEstContext * const c= &s->me;

1675 const int f_code= s->f_code;

1676 int y, range;

1677 av_assert0(s->pict_type==AV_PICTURE_TYPE_P);

1678

1679 range = (((s->out_format == FMT_MPEG1 || s->msmpeg4_version) ? 8 : 16) << f_code);

1680

1681 av_assert0(range <= 16 || !s->msmpeg4_version);

1682 av_assert0(range <=256 || !(s->codec_id == AV_CODEC_ID_MPEG2VIDEO && s->avctx->strict_std_compliance >= FF_COMPLIANCE_NORMAL));

1683

1684 if(c->avctx->me_range && range > c->avctx->me_range) range= c->avctx->me_range;

1685

1686 if(s->flags&CODEC_FLAG_4MV){

1687 const int wrap= s->b8_stride;

1688

1689 /* clip / convert to intra 8x8 type MVs */

1690 for(y=0; y<s->mb_height; y++){

1691 int xy= y*2*wrap;

1692 int i= y*s->mb_stride;

1693 int x;

1694

1695 for(x=0; x<s->mb_width; x++){

1696 if(s->mb_type[i]&CANDIDATE_MB_TYPE_INTER4V){

1697 int block;

1698 for(block=0; block<4; block++){

1699 int off= (block& 1) + (block>>1)*wrap;

1700 int mx = s->current_picture.motion_val[0][ xy + off ][0];

1701 int my = s->current_picture.motion_val[0][ xy + off ][1];

1702

1703 if( mx >=range || mx <-range

1704 || my >=range || my <-range){

1705 s->mb_type[i] &= ~CANDIDATE_MB_TYPE_INTER4V;

1706 s->mb_type[i] |= CANDIDATE_MB_TYPE_INTRA;

1707 s->current_picture.mb_type[i] = CANDIDATE_MB_TYPE_INTRA;

1708 }

1709 }

1710 }

1711 xy+=2;

1712 i++;

1713 }

1714 }

1715 }

1716 }

1717

1718 /**

1719 *

1720 * @param truncate 1 for truncation, 0 for using intra

1721 */

1722 void ff_fix_long_mvs(MpegEncContext * s, uint8_t *field_select_table, int field_select,

1723 int16_t (*mv_table)[2], int f_code, int type, int truncate)

1724 {

1725 MotionEstContext * const c= &s->me;

1726 int y, h_range, v_range;

1727

1728 // RAL: 8 in MPEG-1, 16 in MPEG-4

1729 int range = (((s->out_format == FMT_MPEG1 || s->msmpeg4_version) ? 8 : 16) << f_code);

1730

1731 if(c->avctx->me_range && range > c->avctx->me_range) range= c->avctx->me_range;

1732

1733 h_range= range;

1734 v_range= field_select_table ? range>>1 : range;

1735

1736 /* clip / convert to intra 16x16 type MVs */

1737 for(y=0; y<s->mb_height; y++){

1738 int x;

1739 int xy= y*s->mb_stride;

1740 for(x=0; x<s->mb_width; x++){

1741 if (s->mb_type[xy] & type){ // RAL: "type" test added...

1742 if (!field_select_table || field_select_table[xy] == field_select) {

1743 if( mv_table[xy][0] >=h_range || mv_table[xy][0] <-h_range

1744 || mv_table[xy][1] >=v_range || mv_table[xy][1] <-v_range){

1745

1746 if(truncate){

1747 if (mv_table[xy][0] > h_range-1) mv_table[xy][0]= h_range-1;

1748 else if(mv_table[xy][0] < -h_range ) mv_table[xy][0]= -h_range;

1749 if (mv_table[xy][1] > v_range-1) mv_table[xy][1]= v_range-1;

1750 else if(mv_table[xy][1] < -v_range ) mv_table[xy][1]= -v_range;

1751 }else{

1752 s->mb_type[xy] &= ~type;

1753 s->mb_type[xy] |= CANDIDATE_MB_TYPE_INTRA;

1754 mv_table[xy][0]=

1755 mv_table[xy][1]= 0;

1756 }

1757 }

1758 }

1759 }

1760 xy++;

1761 }

1762 }

1763 }

Generated on Sun Mar 8 2015 02:34:56 for FFmpeg by doxygen 1.8.2