1 /* 2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 12 #include "vpx_ports/config.h" 13 #include "loopfilter.h" 14 #include "onyxc_int.h" 15 16 typedef unsigned char uc; 17 18 19 prototype_loopfilter(vp8_loop_filter_horizontal_edge_c); 20 prototype_loopfilter(vp8_loop_filter_vertical_edge_c); 21 prototype_loopfilter(vp8_mbloop_filter_horizontal_edge_c); 22 prototype_loopfilter(vp8_mbloop_filter_vertical_edge_c); 23 prototype_loopfilter(vp8_loop_filter_simple_horizontal_edge_c); 24 prototype_loopfilter(vp8_loop_filter_simple_vertical_edge_c); 25 26 /* Horizontal MB filtering */ 27 void vp8_loop_filter_mbh_c(unsigned char *y_ptr, unsigned char *u_ptr, unsigned char *v_ptr, 28 int y_stride, int uv_stride, loop_filter_info *lfi, int simpler_lpf) 29 { 30 (void) simpler_lpf; 31 vp8_mbloop_filter_horizontal_edge_c(y_ptr, y_stride, lfi->mbflim, lfi->lim, lfi->thr, 2); 32 33 if (u_ptr) 34 vp8_mbloop_filter_horizontal_edge_c(u_ptr, uv_stride, lfi->mbflim, lfi->lim, lfi->thr, 1); 35 36 if (v_ptr) 37 vp8_mbloop_filter_horizontal_edge_c(v_ptr, uv_stride, lfi->mbflim, lfi->lim, lfi->thr, 1); 38 } 39 40 void vp8_loop_filter_mbhs_c(unsigned char *y_ptr, unsigned char *u_ptr, unsigned char *v_ptr, 41 int y_stride, int uv_stride, loop_filter_info *lfi, int simpler_lpf) 42 { 43 (void) u_ptr; 44 (void) v_ptr; 45 (void) uv_stride; 46 (void) simpler_lpf; 47 vp8_loop_filter_simple_horizontal_edge_c(y_ptr, y_stride, lfi->mbflim, lfi->lim, lfi->thr, 2); 48 } 49 50 /* Vertical MB Filtering */ 51 void vp8_loop_filter_mbv_c(unsigned char *y_ptr, unsigned char *u_ptr, unsigned char *v_ptr, 52 int y_stride, int uv_stride, loop_filter_info *lfi, int simpler_lpf) 53 { 54 (void) simpler_lpf; 55 vp8_mbloop_filter_vertical_edge_c(y_ptr, y_stride, lfi->mbflim, lfi->lim, lfi->thr, 2); 56 57 if (u_ptr) 58 vp8_mbloop_filter_vertical_edge_c(u_ptr, uv_stride, lfi->mbflim, lfi->lim, lfi->thr, 1); 59 60 if (v_ptr) 61 vp8_mbloop_filter_vertical_edge_c(v_ptr, uv_stride, lfi->mbflim, lfi->lim, lfi->thr, 1); 62 } 63 64 void vp8_loop_filter_mbvs_c(unsigned char *y_ptr, unsigned char *u_ptr, unsigned char *v_ptr, 65 int y_stride, int uv_stride, loop_filter_info *lfi, int simpler_lpf) 66 { 67 (void) u_ptr; 68 (void) v_ptr; 69 (void) uv_stride; 70 (void) simpler_lpf; 71 vp8_loop_filter_simple_vertical_edge_c(y_ptr, y_stride, lfi->mbflim, lfi->lim, lfi->thr, 2); 72 } 73 74 /* Horizontal B Filtering */ 75 void vp8_loop_filter_bh_c(unsigned char *y_ptr, unsigned char *u_ptr, unsigned char *v_ptr, 76 int y_stride, int uv_stride, loop_filter_info *lfi, int simpler_lpf) 77 { 78 (void) simpler_lpf; 79 vp8_loop_filter_horizontal_edge_c(y_ptr + 4 * y_stride, y_stride, lfi->flim, lfi->lim, lfi->thr, 2); 80 vp8_loop_filter_horizontal_edge_c(y_ptr + 8 * y_stride, y_stride, lfi->flim, lfi->lim, lfi->thr, 2); 81 vp8_loop_filter_horizontal_edge_c(y_ptr + 12 * y_stride, y_stride, lfi->flim, lfi->lim, lfi->thr, 2); 82 83 if (u_ptr) 84 vp8_loop_filter_horizontal_edge_c(u_ptr + 4 * uv_stride, uv_stride, lfi->flim, lfi->lim, lfi->thr, 1); 85 86 if (v_ptr) 87 vp8_loop_filter_horizontal_edge_c(v_ptr + 4 * uv_stride, uv_stride, lfi->flim, lfi->lim, lfi->thr, 1); 88 } 89 90 void vp8_loop_filter_bhs_c(unsigned char *y_ptr, unsigned char *u_ptr, unsigned char *v_ptr, 91 int y_stride, int uv_stride, loop_filter_info *lfi, int simpler_lpf) 92 { 93 (void) u_ptr; 94 (void) v_ptr; 95 (void) uv_stride; 96 (void) simpler_lpf; 97 vp8_loop_filter_simple_horizontal_edge_c(y_ptr + 4 * y_stride, y_stride, lfi->flim, lfi->lim, lfi->thr, 2); 98 vp8_loop_filter_simple_horizontal_edge_c(y_ptr + 8 * y_stride, y_stride, lfi->flim, lfi->lim, lfi->thr, 2); 99 vp8_loop_filter_simple_horizontal_edge_c(y_ptr + 12 * y_stride, y_stride, lfi->flim, lfi->lim, lfi->thr, 2); 100 } 101 102 /* Vertical B Filtering */ 103 void vp8_loop_filter_bv_c(unsigned char *y_ptr, unsigned char *u_ptr, unsigned char *v_ptr, 104 int y_stride, int uv_stride, loop_filter_info *lfi, int simpler_lpf) 105 { 106 (void) simpler_lpf; 107 vp8_loop_filter_vertical_edge_c(y_ptr + 4, y_stride, lfi->flim, lfi->lim, lfi->thr, 2); 108 vp8_loop_filter_vertical_edge_c(y_ptr + 8, y_stride, lfi->flim, lfi->lim, lfi->thr, 2); 109 vp8_loop_filter_vertical_edge_c(y_ptr + 12, y_stride, lfi->flim, lfi->lim, lfi->thr, 2); 110 111 if (u_ptr) 112 vp8_loop_filter_vertical_edge_c(u_ptr + 4, uv_stride, lfi->flim, lfi->lim, lfi->thr, 1); 113 114 if (v_ptr) 115 vp8_loop_filter_vertical_edge_c(v_ptr + 4, uv_stride, lfi->flim, lfi->lim, lfi->thr, 1); 116 } 117 118 void vp8_loop_filter_bvs_c(unsigned char *y_ptr, unsigned char *u_ptr, unsigned char *v_ptr, 119 int y_stride, int uv_stride, loop_filter_info *lfi, int simpler_lpf) 120 { 121 (void) u_ptr; 122 (void) v_ptr; 123 (void) uv_stride; 124 (void) simpler_lpf; 125 vp8_loop_filter_simple_vertical_edge_c(y_ptr + 4, y_stride, lfi->flim, lfi->lim, lfi->thr, 2); 126 vp8_loop_filter_simple_vertical_edge_c(y_ptr + 8, y_stride, lfi->flim, lfi->lim, lfi->thr, 2); 127 vp8_loop_filter_simple_vertical_edge_c(y_ptr + 12, y_stride, lfi->flim, lfi->lim, lfi->thr, 2); 128 } 129 130 void vp8_init_loop_filter(VP8_COMMON *cm) 131 { 132 loop_filter_info *lfi = cm->lf_info; 133 LOOPFILTERTYPE lft = cm->filter_type; 134 int sharpness_lvl = cm->sharpness_level; 135 int frame_type = cm->frame_type; 136 int i, j; 137 138 int block_inside_limit = 0; 139 int HEVThresh; 140 141 /* For each possible value for the loop filter fill out a "loop_filter_info" entry. */ 142 for (i = 0; i <= MAX_LOOP_FILTER; i++) 143 { 144 int filt_lvl = i; 145 146 if (frame_type == KEY_FRAME) 147 { 148 if (filt_lvl >= 40) 149 HEVThresh = 2; 150 else if (filt_lvl >= 15) 151 HEVThresh = 1; 152 else 153 HEVThresh = 0; 154 } 155 else 156 { 157 if (filt_lvl >= 40) 158 HEVThresh = 3; 159 else if (filt_lvl >= 20) 160 HEVThresh = 2; 161 else if (filt_lvl >= 15) 162 HEVThresh = 1; 163 else 164 HEVThresh = 0; 165 } 166 167 /* Set loop filter paramaeters that control sharpness. */ 168 block_inside_limit = filt_lvl >> (sharpness_lvl > 0); 169 block_inside_limit = block_inside_limit >> (sharpness_lvl > 4); 170 171 if (sharpness_lvl > 0) 172 { 173 if (block_inside_limit > (9 - sharpness_lvl)) 174 block_inside_limit = (9 - sharpness_lvl); 175 } 176 177 if (block_inside_limit < 1) 178 block_inside_limit = 1; 179 180 for (j = 0; j < 16; j++) 181 { 182 lfi[i].lim[j] = block_inside_limit; 183 lfi[i].mbflim[j] = filt_lvl + 2; 184 lfi[i].flim[j] = filt_lvl; 185 lfi[i].thr[j] = HEVThresh; 186 } 187 188 } 189 190 /* Set up the function pointers depending on the type of loop filtering selected */ 191 if (lft == NORMAL_LOOPFILTER) 192 { 193 cm->lf_mbv = LF_INVOKE(&cm->rtcd.loopfilter, normal_mb_v); 194 cm->lf_bv = LF_INVOKE(&cm->rtcd.loopfilter, normal_b_v); 195 cm->lf_mbh = LF_INVOKE(&cm->rtcd.loopfilter, normal_mb_h); 196 cm->lf_bh = LF_INVOKE(&cm->rtcd.loopfilter, normal_b_h); 197 } 198 else 199 { 200 cm->lf_mbv = LF_INVOKE(&cm->rtcd.loopfilter, simple_mb_v); 201 cm->lf_bv = LF_INVOKE(&cm->rtcd.loopfilter, simple_b_v); 202 cm->lf_mbh = LF_INVOKE(&cm->rtcd.loopfilter, simple_mb_h); 203 cm->lf_bh = LF_INVOKE(&cm->rtcd.loopfilter, simple_b_h); 204 } 205 } 206 207 /* Put vp8_init_loop_filter() in vp8dx_create_decompressor(). Only call vp8_frame_init_loop_filter() while decoding 208 * each frame. Check last_frame_type to skip the function most of times. 209 */ 210 void vp8_frame_init_loop_filter(loop_filter_info *lfi, int frame_type) 211 { 212 int HEVThresh; 213 int i, j; 214 215 /* For each possible value for the loop filter fill out a "loop_filter_info" entry. */ 216 for (i = 0; i <= MAX_LOOP_FILTER; i++) 217 { 218 int filt_lvl = i; 219 220 if (frame_type == KEY_FRAME) 221 { 222 if (filt_lvl >= 40) 223 HEVThresh = 2; 224 else if (filt_lvl >= 15) 225 HEVThresh = 1; 226 else 227 HEVThresh = 0; 228 } 229 else 230 { 231 if (filt_lvl >= 40) 232 HEVThresh = 3; 233 else if (filt_lvl >= 20) 234 HEVThresh = 2; 235 else if (filt_lvl >= 15) 236 HEVThresh = 1; 237 else 238 HEVThresh = 0; 239 } 240 241 for (j = 0; j < 16; j++) 242 { 243 /*lfi[i].lim[j] = block_inside_limit; 244 lfi[i].mbflim[j] = filt_lvl+2;*/ 245 /*lfi[i].flim[j] = filt_lvl;*/ 246 lfi[i].thr[j] = HEVThresh; 247 } 248 } 249 } 250 251 252 int vp8_adjust_mb_lf_value(MACROBLOCKD *mbd, int filter_level) 253 { 254 MB_MODE_INFO *mbmi = &mbd->mode_info_context->mbmi; 255 256 if (mbd->mode_ref_lf_delta_enabled) 257 { 258 /* Apply delta for reference frame */ 259 filter_level += mbd->ref_lf_deltas[mbmi->ref_frame]; 260 261 /* Apply delta for mode */ 262 if (mbmi->ref_frame == INTRA_FRAME) 263 { 264 /* Only the split mode BPRED has a further special case */ 265 if (mbmi->mode == B_PRED) 266 filter_level += mbd->mode_lf_deltas[0]; 267 } 268 else 269 { 270 /* Zero motion mode */ 271 if (mbmi->mode == ZEROMV) 272 filter_level += mbd->mode_lf_deltas[1]; 273 274 /* Split MB motion mode */ 275 else if (mbmi->mode == SPLITMV) 276 filter_level += mbd->mode_lf_deltas[3]; 277 278 /* All other inter motion modes (Nearest, Near, New) */ 279 else 280 filter_level += mbd->mode_lf_deltas[2]; 281 } 282 283 /* Range check */ 284 if (filter_level > MAX_LOOP_FILTER) 285 filter_level = MAX_LOOP_FILTER; 286 else if (filter_level < 0) 287 filter_level = 0; 288 } 289 return filter_level; 290 } 291 292 293 void vp8_loop_filter_frame 294 ( 295 VP8_COMMON *cm, 296 MACROBLOCKD *mbd, 297 int default_filt_lvl 298 ) 299 { 300 YV12_BUFFER_CONFIG *post = cm->frame_to_show; 301 loop_filter_info *lfi = cm->lf_info; 302 FRAME_TYPE frame_type = cm->frame_type; 303 304 int mb_row; 305 int mb_col; 306 307 308 int baseline_filter_level[MAX_MB_SEGMENTS]; 309 int filter_level; 310 int alt_flt_enabled = mbd->segmentation_enabled; 311 312 int i; 313 unsigned char *y_ptr, *u_ptr, *v_ptr; 314 315 mbd->mode_info_context = cm->mi; /* Point at base of Mb MODE_INFO list */ 316 317 /* Note the baseline filter values for each segment */ 318 if (alt_flt_enabled) 319 { 320 for (i = 0; i < MAX_MB_SEGMENTS; i++) 321 { 322 /* Abs value */ 323 if (mbd->mb_segement_abs_delta == SEGMENT_ABSDATA) 324 baseline_filter_level[i] = mbd->segment_feature_data[MB_LVL_ALT_LF][i]; 325 /* Delta Value */ 326 else 327 { 328 baseline_filter_level[i] = default_filt_lvl + mbd->segment_feature_data[MB_LVL_ALT_LF][i]; 329 baseline_filter_level[i] = (baseline_filter_level[i] >= 0) ? ((baseline_filter_level[i] <= MAX_LOOP_FILTER) ? baseline_filter_level[i] : MAX_LOOP_FILTER) : 0; /* Clamp to valid range */ 330 } 331 } 332 } 333 else 334 { 335 for (i = 0; i < MAX_MB_SEGMENTS; i++) 336 baseline_filter_level[i] = default_filt_lvl; 337 } 338 339 /* Initialize the loop filter for this frame. */ 340 if ((cm->last_filter_type != cm->filter_type) || (cm->last_sharpness_level != cm->sharpness_level)) 341 vp8_init_loop_filter(cm); 342 else if (frame_type != cm->last_frame_type) 343 vp8_frame_init_loop_filter(lfi, frame_type); 344 345 /* Set up the buffer pointers */ 346 y_ptr = post->y_buffer; 347 u_ptr = post->u_buffer; 348 v_ptr = post->v_buffer; 349 350 /* vp8_filter each macro block */ 351 for (mb_row = 0; mb_row < cm->mb_rows; mb_row++) 352 { 353 for (mb_col = 0; mb_col < cm->mb_cols; mb_col++) 354 { 355 int Segment = (alt_flt_enabled) ? mbd->mode_info_context->mbmi.segment_id : 0; 356 357 filter_level = baseline_filter_level[Segment]; 358 359 /* Distance of Mb to the various image edges. 360 * These specified to 8th pel as they are always compared to values that are in 1/8th pel units 361 * Apply any context driven MB level adjustment 362 */ 363 filter_level = vp8_adjust_mb_lf_value(mbd, filter_level); 364 365 if (filter_level) 366 { 367 if (mb_col > 0) 368 cm->lf_mbv(y_ptr, u_ptr, v_ptr, post->y_stride, post->uv_stride, &lfi[filter_level], cm->simpler_lpf); 369 370 if (mbd->mode_info_context->mbmi.dc_diff > 0) 371 cm->lf_bv(y_ptr, u_ptr, v_ptr, post->y_stride, post->uv_stride, &lfi[filter_level], cm->simpler_lpf); 372 373 /* don't apply across umv border */ 374 if (mb_row > 0) 375 cm->lf_mbh(y_ptr, u_ptr, v_ptr, post->y_stride, post->uv_stride, &lfi[filter_level], cm->simpler_lpf); 376 377 if (mbd->mode_info_context->mbmi.dc_diff > 0) 378 cm->lf_bh(y_ptr, u_ptr, v_ptr, post->y_stride, post->uv_stride, &lfi[filter_level], cm->simpler_lpf); 379 } 380 381 y_ptr += 16; 382 u_ptr += 8; 383 v_ptr += 8; 384 385 mbd->mode_info_context++; /* step to next MB */ 386 } 387 388 y_ptr += post->y_stride * 16 - post->y_width; 389 u_ptr += post->uv_stride * 8 - post->uv_width; 390 v_ptr += post->uv_stride * 8 - post->uv_width; 391 392 mbd->mode_info_context++; /* Skip border mb */ 393 } 394 } 395 396 397 void vp8_loop_filter_frame_yonly 398 ( 399 VP8_COMMON *cm, 400 MACROBLOCKD *mbd, 401 int default_filt_lvl, 402 int sharpness_lvl 403 ) 404 { 405 YV12_BUFFER_CONFIG *post = cm->frame_to_show; 406 407 int i; 408 unsigned char *y_ptr; 409 int mb_row; 410 int mb_col; 411 412 loop_filter_info *lfi = cm->lf_info; 413 int baseline_filter_level[MAX_MB_SEGMENTS]; 414 int filter_level; 415 int alt_flt_enabled = mbd->segmentation_enabled; 416 FRAME_TYPE frame_type = cm->frame_type; 417 418 (void) sharpness_lvl; 419 420 /*MODE_INFO * this_mb_mode_info = cm->mi;*/ /* Point at base of Mb MODE_INFO list */ 421 mbd->mode_info_context = cm->mi; /* Point at base of Mb MODE_INFO list */ 422 423 /* Note the baseline filter values for each segment */ 424 if (alt_flt_enabled) 425 { 426 for (i = 0; i < MAX_MB_SEGMENTS; i++) 427 { 428 /* Abs value */ 429 if (mbd->mb_segement_abs_delta == SEGMENT_ABSDATA) 430 baseline_filter_level[i] = mbd->segment_feature_data[MB_LVL_ALT_LF][i]; 431 /* Delta Value */ 432 else 433 { 434 baseline_filter_level[i] = default_filt_lvl + mbd->segment_feature_data[MB_LVL_ALT_LF][i]; 435 baseline_filter_level[i] = (baseline_filter_level[i] >= 0) ? ((baseline_filter_level[i] <= MAX_LOOP_FILTER) ? baseline_filter_level[i] : MAX_LOOP_FILTER) : 0; /* Clamp to valid range */ 436 } 437 } 438 } 439 else 440 { 441 for (i = 0; i < MAX_MB_SEGMENTS; i++) 442 baseline_filter_level[i] = default_filt_lvl; 443 } 444 445 /* Initialize the loop filter for this frame. */ 446 if ((cm->last_filter_type != cm->filter_type) || (cm->last_sharpness_level != cm->sharpness_level)) 447 vp8_init_loop_filter(cm); 448 else if (frame_type != cm->last_frame_type) 449 vp8_frame_init_loop_filter(lfi, frame_type); 450 451 /* Set up the buffer pointers */ 452 y_ptr = post->y_buffer; 453 454 /* vp8_filter each macro block */ 455 for (mb_row = 0; mb_row < cm->mb_rows; mb_row++) 456 { 457 for (mb_col = 0; mb_col < cm->mb_cols; mb_col++) 458 { 459 int Segment = (alt_flt_enabled) ? mbd->mode_info_context->mbmi.segment_id : 0; 460 filter_level = baseline_filter_level[Segment]; 461 462 /* Apply any context driven MB level adjustment */ 463 filter_level = vp8_adjust_mb_lf_value(mbd, filter_level); 464 465 if (filter_level) 466 { 467 if (mb_col > 0) 468 cm->lf_mbv(y_ptr, 0, 0, post->y_stride, 0, &lfi[filter_level], 0); 469 470 if (mbd->mode_info_context->mbmi.dc_diff > 0) 471 cm->lf_bv(y_ptr, 0, 0, post->y_stride, 0, &lfi[filter_level], 0); 472 473 /* don't apply across umv border */ 474 if (mb_row > 0) 475 cm->lf_mbh(y_ptr, 0, 0, post->y_stride, 0, &lfi[filter_level], 0); 476 477 if (mbd->mode_info_context->mbmi.dc_diff > 0) 478 cm->lf_bh(y_ptr, 0, 0, post->y_stride, 0, &lfi[filter_level], 0); 479 } 480 481 y_ptr += 16; 482 mbd->mode_info_context ++; /* step to next MB */ 483 484 } 485 486 y_ptr += post->y_stride * 16 - post->y_width; 487 mbd->mode_info_context ++; /* Skip border mb */ 488 } 489 490 } 491 492 493 void vp8_loop_filter_partial_frame 494 ( 495 VP8_COMMON *cm, 496 MACROBLOCKD *mbd, 497 int default_filt_lvl, 498 int sharpness_lvl, 499 int Fraction 500 ) 501 { 502 YV12_BUFFER_CONFIG *post = cm->frame_to_show; 503 504 int i; 505 unsigned char *y_ptr; 506 int mb_row; 507 int mb_col; 508 /*int mb_rows = post->y_height >> 4;*/ 509 int mb_cols = post->y_width >> 4; 510 511 int linestocopy; 512 513 loop_filter_info *lfi = cm->lf_info; 514 int baseline_filter_level[MAX_MB_SEGMENTS]; 515 int filter_level; 516 int alt_flt_enabled = mbd->segmentation_enabled; 517 FRAME_TYPE frame_type = cm->frame_type; 518 519 (void) sharpness_lvl; 520 521 /*MODE_INFO * this_mb_mode_info = cm->mi + (post->y_height>>5) * (mb_cols + 1);*/ /* Point at base of Mb MODE_INFO list */ 522 mbd->mode_info_context = cm->mi + (post->y_height >> 5) * (mb_cols + 1); /* Point at base of Mb MODE_INFO list */ 523 524 linestocopy = (post->y_height >> (4 + Fraction)); 525 526 if (linestocopy < 1) 527 linestocopy = 1; 528 529 linestocopy <<= 4; 530 531 /* Note the baseline filter values for each segment */ 532 if (alt_flt_enabled) 533 { 534 for (i = 0; i < MAX_MB_SEGMENTS; i++) 535 { 536 /* Abs value */ 537 if (mbd->mb_segement_abs_delta == SEGMENT_ABSDATA) 538 baseline_filter_level[i] = mbd->segment_feature_data[MB_LVL_ALT_LF][i]; 539 /* Delta Value */ 540 else 541 { 542 baseline_filter_level[i] = default_filt_lvl + mbd->segment_feature_data[MB_LVL_ALT_LF][i]; 543 baseline_filter_level[i] = (baseline_filter_level[i] >= 0) ? ((baseline_filter_level[i] <= MAX_LOOP_FILTER) ? baseline_filter_level[i] : MAX_LOOP_FILTER) : 0; /* Clamp to valid range */ 544 } 545 } 546 } 547 else 548 { 549 for (i = 0; i < MAX_MB_SEGMENTS; i++) 550 baseline_filter_level[i] = default_filt_lvl; 551 } 552 553 /* Initialize the loop filter for this frame. */ 554 if ((cm->last_filter_type != cm->filter_type) || (cm->last_sharpness_level != cm->sharpness_level)) 555 vp8_init_loop_filter(cm); 556 else if (frame_type != cm->last_frame_type) 557 vp8_frame_init_loop_filter(lfi, frame_type); 558 559 /* Set up the buffer pointers */ 560 y_ptr = post->y_buffer + (post->y_height >> 5) * 16 * post->y_stride; 561 562 /* vp8_filter each macro block */ 563 for (mb_row = 0; mb_row<(linestocopy >> 4); mb_row++) 564 { 565 for (mb_col = 0; mb_col < mb_cols; mb_col++) 566 { 567 int Segment = (alt_flt_enabled) ? mbd->mode_info_context->mbmi.segment_id : 0; 568 filter_level = baseline_filter_level[Segment]; 569 570 if (filter_level) 571 { 572 if (mb_col > 0) 573 cm->lf_mbv(y_ptr, 0, 0, post->y_stride, 0, &lfi[filter_level], 0); 574 575 if (mbd->mode_info_context->mbmi.dc_diff > 0) 576 cm->lf_bv(y_ptr, 0, 0, post->y_stride, 0, &lfi[filter_level], 0); 577 578 cm->lf_mbh(y_ptr, 0, 0, post->y_stride, 0, &lfi[filter_level], 0); 579 580 if (mbd->mode_info_context->mbmi.dc_diff > 0) 581 cm->lf_bh(y_ptr, 0, 0, post->y_stride, 0, &lfi[filter_level], 0); 582 } 583 584 y_ptr += 16; 585 mbd->mode_info_context += 1; /* step to next MB */ 586 } 587 588 y_ptr += post->y_stride * 16 - post->y_width; 589 mbd->mode_info_context += 1; /* Skip border mb */ 590 } 591 } 592
