1/* 2 * Copyright (C) 2004-2010 Michael Niedermayer <michaelni@gmx.at> 3 * Copyright (C) 2008 David Conrad 4 * 5 * This file is part of FFmpeg. 6 * 7 * FFmpeg is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Lesser General Public 9 * License as published by the Free Software Foundation; either 10 * version 2.1 of the License, or (at your option) any later version. 11 * 12 * FFmpeg is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Lesser General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with FFmpeg; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 20 */ 21 22#include "libavutil/attributes.h" 23#include "libavutil/avassert.h" 24#include "libavutil/common.h" 25#include "dsputil.h" 26#include "dirac_dwt.h" 27#include "libavcodec/x86/dirac_dwt.h" 28 29 30static inline int mirror(int v, int m) 31{ 32 while ((unsigned)v > (unsigned)m) { 33 v = -v; 34 if (v < 0) 35 v += 2 * m; 36 } 37 return v; 38} 39 40static void vertical_compose53iL0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, 41 int width) 42{ 43 int i; 44 45 for (i = 0; i < width; i++) 46 b1[i] -= (b0[i] + b2[i] + 2) >> 2; 47} 48 49 50static av_always_inline 51void interleave(IDWTELEM *dst, IDWTELEM *src0, IDWTELEM *src1, int w2, int add, int shift) 52{ 53 int i; 54 for (i = 0; i < w2; i++) { 55 dst[2*i ] = (src0[i] + add) >> shift; 56 dst[2*i+1] = (src1[i] + add) >> shift; 57 } 58} 59 60static void horizontal_compose_dirac53i(IDWTELEM *b, IDWTELEM *temp, int w) 61{ 62 const int w2 = w >> 1; 63 int x; 64 65 temp[0] = COMPOSE_53iL0(b[w2], b[0], b[w2]); 66 for (x = 1; x < w2; x++) { 67 temp[x ] = COMPOSE_53iL0 (b[x+w2-1], b[x ], b[x+w2]); 68 temp[x+w2-1] = COMPOSE_DIRAC53iH0(temp[x-1], b[x+w2-1], temp[x]); 69 } 70 temp[w-1] = COMPOSE_DIRAC53iH0(temp[w2-1], b[w-1], temp[w2-1]); 71 72 interleave(b, temp, temp+w2, w2, 1, 1); 73} 74 75static void horizontal_compose_dd97i(IDWTELEM *b, IDWTELEM *tmp, int w) 76{ 77 const int w2 = w >> 1; 78 int x; 79 80 tmp[0] = COMPOSE_53iL0(b[w2], b[0], b[w2]); 81 for (x = 1; x < w2; x++) 82 tmp[x] = COMPOSE_53iL0(b[x+w2-1], b[x], b[x+w2]); 83 84 // extend the edges 85 tmp[-1] = tmp[0]; 86 tmp[w2+1] = tmp[w2] = tmp[w2-1]; 87 88 for (x = 0; x < w2; x++) { 89 b[2*x ] = (tmp[x] + 1)>>1; 90 b[2*x+1] = (COMPOSE_DD97iH0(tmp[x-1], tmp[x], b[x+w2], tmp[x+1], tmp[x+2]) + 1)>>1; 91 } 92} 93 94static void horizontal_compose_dd137i(IDWTELEM *b, IDWTELEM *tmp, int w) 95{ 96 const int w2 = w >> 1; 97 int x; 98 99 tmp[0] = COMPOSE_DD137iL0(b[w2], b[w2], b[0], b[w2 ], b[w2+1]); 100 tmp[1] = COMPOSE_DD137iL0(b[w2], b[w2], b[1], b[w2+1], b[w2+2]); 101 for (x = 2; x < w2-1; x++) 102 tmp[x] = COMPOSE_DD137iL0(b[x+w2-2], b[x+w2-1], b[x], b[x+w2], b[x+w2+1]); 103 tmp[w2-1] = COMPOSE_DD137iL0(b[w-3], b[w-2], b[w2-1], b[w-1], b[w-1]); 104 105 // extend the edges 106 tmp[-1] = tmp[0]; 107 tmp[w2+1] = tmp[w2] = tmp[w2-1]; 108 109 for (x = 0; x < w2; x++) { 110 b[2*x ] = (tmp[x] + 1)>>1; 111 b[2*x+1] = (COMPOSE_DD97iH0(tmp[x-1], tmp[x], b[x+w2], tmp[x+1], tmp[x+2]) + 1)>>1; 112 } 113} 114 115static av_always_inline 116void horizontal_compose_haari(IDWTELEM *b, IDWTELEM *temp, int w, int shift) 117{ 118 const int w2 = w >> 1; 119 int x; 120 121 for (x = 0; x < w2; x++) { 122 temp[x ] = COMPOSE_HAARiL0(b[x ], b[x+w2]); 123 temp[x+w2] = COMPOSE_HAARiH0(b[x+w2], temp[x]); 124 } 125 126 interleave(b, temp, temp+w2, w2, shift, shift); 127} 128 129static void horizontal_compose_haar0i(IDWTELEM *b, IDWTELEM *temp, int w) 130{ 131 horizontal_compose_haari(b, temp, w, 0); 132} 133 134static void horizontal_compose_haar1i(IDWTELEM *b, IDWTELEM *temp, int w) 135{ 136 horizontal_compose_haari(b, temp, w, 1); 137} 138 139static void horizontal_compose_fidelityi(IDWTELEM *b, IDWTELEM *tmp, int w) 140{ 141 const int w2 = w >> 1; 142 int i, x; 143 IDWTELEM v[8]; 144 145 for (x = 0; x < w2; x++) { 146 for (i = 0; i < 8; i++) 147 v[i] = b[av_clip(x-3+i, 0, w2-1)]; 148 tmp[x] = COMPOSE_FIDELITYiH0(v[0], v[1], v[2], v[3], b[x+w2], v[4], v[5], v[6], v[7]); 149 } 150 151 for (x = 0; x < w2; x++) { 152 for (i = 0; i < 8; i++) 153 v[i] = tmp[av_clip(x-4+i, 0, w2-1)]; 154 tmp[x+w2] = COMPOSE_FIDELITYiL0(v[0], v[1], v[2], v[3], b[x], v[4], v[5], v[6], v[7]); 155 } 156 157 interleave(b, tmp+w2, tmp, w2, 0, 0); 158} 159 160static void horizontal_compose_daub97i(IDWTELEM *b, IDWTELEM *temp, int w) 161{ 162 const int w2 = w >> 1; 163 int x, b0, b1, b2; 164 165 temp[0] = COMPOSE_DAUB97iL1(b[w2], b[0], b[w2]); 166 for (x = 1; x < w2; x++) { 167 temp[x ] = COMPOSE_DAUB97iL1(b[x+w2-1], b[x ], b[x+w2]); 168 temp[x+w2-1] = COMPOSE_DAUB97iH1(temp[x-1], b[x+w2-1], temp[x]); 169 } 170 temp[w-1] = COMPOSE_DAUB97iH1(temp[w2-1], b[w-1], temp[w2-1]); 171 172 // second stage combined with interleave and shift 173 b0 = b2 = COMPOSE_DAUB97iL0(temp[w2], temp[0], temp[w2]); 174 b[0] = (b0 + 1) >> 1; 175 for (x = 1; x < w2; x++) { 176 b2 = COMPOSE_DAUB97iL0(temp[x+w2-1], temp[x ], temp[x+w2]); 177 b1 = COMPOSE_DAUB97iH0( b0, temp[x+w2-1], b2 ); 178 b[2*x-1] = (b1 + 1) >> 1; 179 b[2*x ] = (b2 + 1) >> 1; 180 b0 = b2; 181 } 182 b[w-1] = (COMPOSE_DAUB97iH0(b2, temp[w-1], b2) + 1) >> 1; 183} 184 185static void vertical_compose_dirac53iH0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width) 186{ 187 int i; 188 189 for(i=0; i<width; i++){ 190 b1[i] = COMPOSE_DIRAC53iH0(b0[i], b1[i], b2[i]); 191 } 192} 193 194static void vertical_compose_dd97iH0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, 195 IDWTELEM *b3, IDWTELEM *b4, int width) 196{ 197 int i; 198 199 for(i=0; i<width; i++){ 200 b2[i] = COMPOSE_DD97iH0(b0[i], b1[i], b2[i], b3[i], b4[i]); 201 } 202} 203 204static void vertical_compose_dd137iL0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, 205 IDWTELEM *b3, IDWTELEM *b4, int width) 206{ 207 int i; 208 209 for(i=0; i<width; i++){ 210 b2[i] = COMPOSE_DD137iL0(b0[i], b1[i], b2[i], b3[i], b4[i]); 211 } 212} 213 214static void vertical_compose_haar(IDWTELEM *b0, IDWTELEM *b1, int width) 215{ 216 int i; 217 218 for (i = 0; i < width; i++) { 219 b0[i] = COMPOSE_HAARiL0(b0[i], b1[i]); 220 b1[i] = COMPOSE_HAARiH0(b1[i], b0[i]); 221 } 222} 223 224static void vertical_compose_fidelityiH0(IDWTELEM *dst, IDWTELEM *b[8], int width) 225{ 226 int i; 227 228 for(i=0; i<width; i++){ 229 dst[i] = COMPOSE_FIDELITYiH0(b[0][i], b[1][i], b[2][i], b[3][i], dst[i], b[4][i], b[5][i], b[6][i], b[7][i]); 230 } 231} 232 233static void vertical_compose_fidelityiL0(IDWTELEM *dst, IDWTELEM *b[8], int width) 234{ 235 int i; 236 237 for(i=0; i<width; i++){ 238 dst[i] = COMPOSE_FIDELITYiL0(b[0][i], b[1][i], b[2][i], b[3][i], dst[i], b[4][i], b[5][i], b[6][i], b[7][i]); 239 } 240} 241 242static void vertical_compose_daub97iH0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width) 243{ 244 int i; 245 246 for(i=0; i<width; i++){ 247 b1[i] = COMPOSE_DAUB97iH0(b0[i], b1[i], b2[i]); 248 } 249} 250 251static void vertical_compose_daub97iH1(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width) 252{ 253 int i; 254 255 for(i=0; i<width; i++){ 256 b1[i] = COMPOSE_DAUB97iH1(b0[i], b1[i], b2[i]); 257 } 258} 259 260static void vertical_compose_daub97iL0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width) 261{ 262 int i; 263 264 for(i=0; i<width; i++){ 265 b1[i] = COMPOSE_DAUB97iL0(b0[i], b1[i], b2[i]); 266 } 267} 268 269static void vertical_compose_daub97iL1(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width) 270{ 271 int i; 272 273 for(i=0; i<width; i++){ 274 b1[i] = COMPOSE_DAUB97iL1(b0[i], b1[i], b2[i]); 275 } 276} 277 278 279static void spatial_compose_dd97i_dy(DWTContext *d, int level, int width, int height, int stride) 280{ 281 vertical_compose_3tap vertical_compose_l0 = (void*)d->vertical_compose_l0; 282 vertical_compose_5tap vertical_compose_h0 = (void*)d->vertical_compose_h0; 283 DWTCompose *cs = d->cs + level; 284 285 int i, y = cs->y; 286 IDWTELEM *b[8]; 287 for (i = 0; i < 6; i++) 288 b[i] = cs->b[i]; 289 b[6] = d->buffer + av_clip(y+5, 0, height-2)*stride; 290 b[7] = d->buffer + av_clip(y+6, 1, height-1)*stride; 291 292 if(y+5<(unsigned)height) vertical_compose_l0( b[5], b[6], b[7], width); 293 if(y+1<(unsigned)height) vertical_compose_h0(b[0], b[2], b[3], b[4], b[6], width); 294 295 if(y-1<(unsigned)height) d->horizontal_compose(b[0], d->temp, width); 296 if(y+0<(unsigned)height) d->horizontal_compose(b[1], d->temp, width); 297 298 for (i = 0; i < 6; i++) 299 cs->b[i] = b[i+2]; 300 cs->y += 2; 301} 302 303static void spatial_compose_dirac53i_dy(DWTContext *d, int level, int width, int height, int stride) 304{ 305 vertical_compose_3tap vertical_compose_l0 = (void*)d->vertical_compose_l0; 306 vertical_compose_3tap vertical_compose_h0 = (void*)d->vertical_compose_h0; 307 DWTCompose *cs = d->cs + level; 308 309 int y= cs->y; 310 IDWTELEM *b[4] = { cs->b[0], cs->b[1] }; 311 b[2] = d->buffer + mirror(y+1, height-1)*stride; 312 b[3] = d->buffer + mirror(y+2, height-1)*stride; 313 314 if(y+1<(unsigned)height) vertical_compose_l0(b[1], b[2], b[3], width); 315 if(y+0<(unsigned)height) vertical_compose_h0(b[0], b[1], b[2], width); 316 317 if(y-1<(unsigned)height) d->horizontal_compose(b[0], d->temp, width); 318 if(y+0<(unsigned)height) d->horizontal_compose(b[1], d->temp, width); 319 320 cs->b[0] = b[2]; 321 cs->b[1] = b[3]; 322 cs->y += 2; 323} 324 325 326static void spatial_compose_dd137i_dy(DWTContext *d, int level, int width, int height, int stride) 327{ 328 vertical_compose_5tap vertical_compose_l0 = (void*)d->vertical_compose_l0; 329 vertical_compose_5tap vertical_compose_h0 = (void*)d->vertical_compose_h0; 330 DWTCompose *cs = d->cs + level; 331 332 int i, y = cs->y; 333 IDWTELEM *b[10]; 334 for (i = 0; i < 8; i++) 335 b[i] = cs->b[i]; 336 b[8] = d->buffer + av_clip(y+7, 0, height-2)*stride; 337 b[9] = d->buffer + av_clip(y+8, 1, height-1)*stride; 338 339 if(y+5<(unsigned)height) vertical_compose_l0(b[3], b[5], b[6], b[7], b[9], width); 340 if(y+1<(unsigned)height) vertical_compose_h0(b[0], b[2], b[3], b[4], b[6], width); 341 342 if(y-1<(unsigned)height) d->horizontal_compose(b[0], d->temp, width); 343 if(y+0<(unsigned)height) d->horizontal_compose(b[1], d->temp, width); 344 345 for (i = 0; i < 8; i++) 346 cs->b[i] = b[i+2]; 347 cs->y += 2; 348} 349 350// haar makes the assumption that height is even (always true for dirac) 351static void spatial_compose_haari_dy(DWTContext *d, int level, int width, int height, int stride) 352{ 353 vertical_compose_2tap vertical_compose = (void*)d->vertical_compose; 354 int y = d->cs[level].y; 355 IDWTELEM *b0 = d->buffer + (y-1)*stride; 356 IDWTELEM *b1 = d->buffer + (y )*stride; 357 358 vertical_compose(b0, b1, width); 359 d->horizontal_compose(b0, d->temp, width); 360 d->horizontal_compose(b1, d->temp, width); 361 362 d->cs[level].y += 2; 363} 364 365// Don't do sliced idwt for fidelity; the 9 tap filter makes it a bit annoying 366// Fortunately, this filter isn't used in practice. 367static void spatial_compose_fidelity(DWTContext *d, int level, int width, int height, int stride) 368{ 369 vertical_compose_9tap vertical_compose_l0 = (void*)d->vertical_compose_l0; 370 vertical_compose_9tap vertical_compose_h0 = (void*)d->vertical_compose_h0; 371 int i, y; 372 IDWTELEM *b[8]; 373 374 for (y = 1; y < height; y += 2) { 375 for (i = 0; i < 8; i++) 376 b[i] = d->buffer + av_clip((y-7 + 2*i), 0, height-2)*stride; 377 vertical_compose_h0(d->buffer + y*stride, b, width); 378 } 379 380 for (y = 0; y < height; y += 2) { 381 for (i = 0; i < 8; i++) 382 b[i] = d->buffer + av_clip((y-7 + 2*i), 1, height-1)*stride; 383 vertical_compose_l0(d->buffer + y*stride, b, width); 384 } 385 386 for (y = 0; y < height; y++) 387 d->horizontal_compose(d->buffer + y*stride, d->temp, width); 388 389 d->cs[level].y = height+1; 390} 391 392static void spatial_compose_daub97i_dy(DWTContext *d, int level, int width, int height, int stride) 393{ 394 vertical_compose_3tap vertical_compose_l0 = (void*)d->vertical_compose_l0; 395 vertical_compose_3tap vertical_compose_h0 = (void*)d->vertical_compose_h0; 396 vertical_compose_3tap vertical_compose_l1 = (void*)d->vertical_compose_l1; 397 vertical_compose_3tap vertical_compose_h1 = (void*)d->vertical_compose_h1; 398 DWTCompose *cs = d->cs + level; 399 400 int i, y = cs->y; 401 IDWTELEM *b[6]; 402 for (i = 0; i < 4; i++) 403 b[i] = cs->b[i]; 404 b[4] = d->buffer + mirror(y+3, height-1)*stride; 405 b[5] = d->buffer + mirror(y+4, height-1)*stride; 406 407 if(y+3<(unsigned)height) vertical_compose_l1(b[3], b[4], b[5], width); 408 if(y+2<(unsigned)height) vertical_compose_h1(b[2], b[3], b[4], width); 409 if(y+1<(unsigned)height) vertical_compose_l0(b[1], b[2], b[3], width); 410 if(y+0<(unsigned)height) vertical_compose_h0(b[0], b[1], b[2], width); 411 412 if(y-1<(unsigned)height) d->horizontal_compose(b[0], d->temp, width); 413 if(y+0<(unsigned)height) d->horizontal_compose(b[1], d->temp, width); 414 415 for (i = 0; i < 4; i++) 416 cs->b[i] = b[i+2]; 417 cs->y += 2; 418} 419 420 421static void spatial_compose97i_init2(DWTCompose *cs, IDWTELEM *buffer, int height, int stride) 422{ 423 cs->b[0] = buffer + mirror(-3-1, height-1)*stride; 424 cs->b[1] = buffer + mirror(-3 , height-1)*stride; 425 cs->b[2] = buffer + mirror(-3+1, height-1)*stride; 426 cs->b[3] = buffer + mirror(-3+2, height-1)*stride; 427 cs->y = -3; 428} 429 430static void spatial_compose53i_init2(DWTCompose *cs, IDWTELEM *buffer, int height, int stride) 431{ 432 cs->b[0] = buffer + mirror(-1-1, height-1)*stride; 433 cs->b[1] = buffer + mirror(-1 , height-1)*stride; 434 cs->y = -1; 435} 436 437static void spatial_compose_dd97i_init(DWTCompose *cs, IDWTELEM *buffer, int height, int stride) 438{ 439 cs->b[0] = buffer + av_clip(-5-1, 0, height-2)*stride; 440 cs->b[1] = buffer + av_clip(-5 , 1, height-1)*stride; 441 cs->b[2] = buffer + av_clip(-5+1, 0, height-2)*stride; 442 cs->b[3] = buffer + av_clip(-5+2, 1, height-1)*stride; 443 cs->b[4] = buffer + av_clip(-5+3, 0, height-2)*stride; 444 cs->b[5] = buffer + av_clip(-5+4, 1, height-1)*stride; 445 cs->y = -5; 446} 447 448static void spatial_compose_dd137i_init(DWTCompose *cs, IDWTELEM *buffer, int height, int stride) 449{ 450 cs->b[0] = buffer + av_clip(-5-1, 0, height-2)*stride; 451 cs->b[1] = buffer + av_clip(-5 , 1, height-1)*stride; 452 cs->b[2] = buffer + av_clip(-5+1, 0, height-2)*stride; 453 cs->b[3] = buffer + av_clip(-5+2, 1, height-1)*stride; 454 cs->b[4] = buffer + av_clip(-5+3, 0, height-2)*stride; 455 cs->b[5] = buffer + av_clip(-5+4, 1, height-1)*stride; 456 cs->b[6] = buffer + av_clip(-5+5, 0, height-2)*stride; 457 cs->b[7] = buffer + av_clip(-5+6, 1, height-1)*stride; 458 cs->y = -5; 459} 460 461int ff_spatial_idwt_init2(DWTContext *d, IDWTELEM *buffer, int width, int height, 462 int stride, enum dwt_type type, int decomposition_count, 463 IDWTELEM *temp) 464{ 465 int level; 466 467 d->buffer = buffer; 468 d->width = width; 469 d->height = height; 470 d->stride = stride; 471 d->decomposition_count = decomposition_count; 472 d->temp = temp + 8; 473 474 for(level=decomposition_count-1; level>=0; level--){ 475 int hl = height >> level; 476 int stride_l = stride << level; 477 478 switch(type){ 479 case DWT_DIRAC_DD9_7: 480 spatial_compose_dd97i_init(d->cs+level, buffer, hl, stride_l); 481 break; 482 case DWT_DIRAC_LEGALL5_3: 483 spatial_compose53i_init2(d->cs+level, buffer, hl, stride_l); 484 break; 485 case DWT_DIRAC_DD13_7: 486 spatial_compose_dd137i_init(d->cs+level, buffer, hl, stride_l); 487 break; 488 case DWT_DIRAC_HAAR0: 489 case DWT_DIRAC_HAAR1: 490 d->cs[level].y = 1; 491 break; 492 case DWT_DIRAC_DAUB9_7: 493 spatial_compose97i_init2(d->cs+level, buffer, hl, stride_l); 494 break; 495 default: 496 d->cs[level].y = 0; 497 break; 498 } 499 } 500 501 switch (type) { 502 case DWT_DIRAC_DD9_7: 503 d->spatial_compose = spatial_compose_dd97i_dy; 504 d->vertical_compose_l0 = (void*)vertical_compose53iL0; 505 d->vertical_compose_h0 = (void*)vertical_compose_dd97iH0; 506 d->horizontal_compose = horizontal_compose_dd97i; 507 d->support = 7; 508 break; 509 case DWT_DIRAC_LEGALL5_3: 510 d->spatial_compose = spatial_compose_dirac53i_dy; 511 d->vertical_compose_l0 = (void*)vertical_compose53iL0; 512 d->vertical_compose_h0 = (void*)vertical_compose_dirac53iH0; 513 d->horizontal_compose = horizontal_compose_dirac53i; 514 d->support = 3; 515 break; 516 case DWT_DIRAC_DD13_7: 517 d->spatial_compose = spatial_compose_dd137i_dy; 518 d->vertical_compose_l0 = (void*)vertical_compose_dd137iL0; 519 d->vertical_compose_h0 = (void*)vertical_compose_dd97iH0; 520 d->horizontal_compose = horizontal_compose_dd137i; 521 d->support = 7; 522 break; 523 case DWT_DIRAC_HAAR0: 524 case DWT_DIRAC_HAAR1: 525 d->spatial_compose = spatial_compose_haari_dy; 526 d->vertical_compose = (void*)vertical_compose_haar; 527 if (type == DWT_DIRAC_HAAR0) 528 d->horizontal_compose = horizontal_compose_haar0i; 529 else 530 d->horizontal_compose = horizontal_compose_haar1i; 531 d->support = 1; 532 break; 533 case DWT_DIRAC_FIDELITY: 534 d->spatial_compose = spatial_compose_fidelity; 535 d->vertical_compose_l0 = (void*)vertical_compose_fidelityiL0; 536 d->vertical_compose_h0 = (void*)vertical_compose_fidelityiH0; 537 d->horizontal_compose = horizontal_compose_fidelityi; 538 d->support = 0; // not really used 539 break; 540 case DWT_DIRAC_DAUB9_7: 541 d->spatial_compose = spatial_compose_daub97i_dy; 542 d->vertical_compose_l0 = (void*)vertical_compose_daub97iL0; 543 d->vertical_compose_h0 = (void*)vertical_compose_daub97iH0; 544 d->vertical_compose_l1 = (void*)vertical_compose_daub97iL1; 545 d->vertical_compose_h1 = (void*)vertical_compose_daub97iH1; 546 d->horizontal_compose = horizontal_compose_daub97i; 547 d->support = 5; 548 break; 549 default: 550 av_log(NULL, AV_LOG_ERROR, "Unknown wavelet type %d\n", type); 551 return -1; 552 } 553 554 if (HAVE_MMX) ff_spatial_idwt_init_mmx(d, type); 555 556 return 0; 557} 558 559void ff_spatial_idwt_slice2(DWTContext *d, int y) 560{ 561 int level, support = d->support; 562 563 for (level = d->decomposition_count-1; level >= 0; level--) { 564 int wl = d->width >> level; 565 int hl = d->height >> level; 566 int stride_l = d->stride << level; 567 568 while (d->cs[level].y <= FFMIN((y>>level)+support, hl)) 569 d->spatial_compose(d, level, wl, hl, stride_l); 570 } 571} 572 573