1 /* 2 * Copyright (c) 2016, Alliance for Open Media. All rights reserved 3 * 4 * This source code is subject to the terms of the BSD 2 Clause License and 5 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License 6 * was not distributed with this source code in the LICENSE file, you can 7 * obtain it at www.aomedia.org/license/software. If the Alliance for Open 8 * Media Patent License 1.0 was not distributed with this source code in the 9 * PATENTS file, you can obtain it at www.aomedia.org/license/patent. 10 */ 11 12 #include "config/aom_config.h" 13 #include "config/aom_scale_rtcd.h" 14 15 #include "aom_dsp/aom_dsp_common.h" 16 #include "aom_mem/aom_mem.h" 17 #include "av1/common/av1_loopfilter.h" 18 #include "av1/common/entropymode.h" 19 #include "av1/common/thread_common.h" 20 #include "av1/common/reconinter.h" 21 22 // Set up nsync by width. 23 static INLINE int get_sync_range(int width) { 24 // nsync numbers are picked by testing. For example, for 4k 25 // video, using 4 gives best performance. 26 if (width < 640) 27 return 1; 28 else if (width <= 1280) 29 return 2; 30 else if (width <= 4096) 31 return 4; 32 else 33 return 8; 34 } 35 36 static INLINE int get_lr_sync_range(int width) { 37 #if 0 38 // nsync numbers are picked by testing. For example, for 4k 39 // video, using 4 gives best performance. 40 if (width < 640) 41 return 1; 42 else if (width <= 1280) 43 return 2; 44 else if (width <= 4096) 45 return 4; 46 else 47 return 8; 48 #else 49 (void)width; 50 return 1; 51 #endif 52 } 53 54 // Allocate memory for lf row synchronization 55 static void loop_filter_alloc(AV1LfSync *lf_sync, AV1_COMMON *cm, int rows, 56 int width, int num_workers) { 57 lf_sync->rows = rows; 58 #if CONFIG_MULTITHREAD 59 { 60 int i, j; 61 62 for (j = 0; j < MAX_MB_PLANE; j++) { 63 CHECK_MEM_ERROR(cm, lf_sync->mutex_[j], 64 aom_malloc(sizeof(*(lf_sync->mutex_[j])) * rows)); 65 if (lf_sync->mutex_[j]) { 66 for (i = 0; i < rows; ++i) { 67 pthread_mutex_init(&lf_sync->mutex_[j][i], NULL); 68 } 69 } 70 71 CHECK_MEM_ERROR(cm, lf_sync->cond_[j], 72 aom_malloc(sizeof(*(lf_sync->cond_[j])) * rows)); 73 if (lf_sync->cond_[j]) { 74 for (i = 0; i < rows; ++i) { 75 pthread_cond_init(&lf_sync->cond_[j][i], NULL); 76 } 77 } 78 } 79 80 CHECK_MEM_ERROR(cm, lf_sync->job_mutex, 81 aom_malloc(sizeof(*(lf_sync->job_mutex)))); 82 if (lf_sync->job_mutex) { 83 pthread_mutex_init(lf_sync->job_mutex, NULL); 84 } 85 } 86 #endif // CONFIG_MULTITHREAD 87 CHECK_MEM_ERROR(cm, lf_sync->lfdata, 88 aom_malloc(num_workers * sizeof(*(lf_sync->lfdata)))); 89 lf_sync->num_workers = num_workers; 90 91 for (int j = 0; j < MAX_MB_PLANE; j++) { 92 CHECK_MEM_ERROR(cm, lf_sync->cur_sb_col[j], 93 aom_malloc(sizeof(*(lf_sync->cur_sb_col[j])) * rows)); 94 } 95 CHECK_MEM_ERROR( 96 cm, lf_sync->job_queue, 97 aom_malloc(sizeof(*(lf_sync->job_queue)) * rows * MAX_MB_PLANE * 2)); 98 // Set up nsync. 99 lf_sync->sync_range = get_sync_range(width); 100 } 101 102 // Deallocate lf synchronization related mutex and data 103 void av1_loop_filter_dealloc(AV1LfSync *lf_sync) { 104 if (lf_sync != NULL) { 105 int j; 106 #if CONFIG_MULTITHREAD 107 int i; 108 for (j = 0; j < MAX_MB_PLANE; j++) { 109 if (lf_sync->mutex_[j] != NULL) { 110 for (i = 0; i < lf_sync->rows; ++i) { 111 pthread_mutex_destroy(&lf_sync->mutex_[j][i]); 112 } 113 aom_free(lf_sync->mutex_[j]); 114 } 115 if (lf_sync->cond_[j] != NULL) { 116 for (i = 0; i < lf_sync->rows; ++i) { 117 pthread_cond_destroy(&lf_sync->cond_[j][i]); 118 } 119 aom_free(lf_sync->cond_[j]); 120 } 121 } 122 if (lf_sync->job_mutex != NULL) { 123 pthread_mutex_destroy(lf_sync->job_mutex); 124 aom_free(lf_sync->job_mutex); 125 } 126 #endif // CONFIG_MULTITHREAD 127 aom_free(lf_sync->lfdata); 128 for (j = 0; j < MAX_MB_PLANE; j++) { 129 aom_free(lf_sync->cur_sb_col[j]); 130 } 131 132 aom_free(lf_sync->job_queue); 133 // clear the structure as the source of this call may be a resize in which 134 // case this call will be followed by an _alloc() which may fail. 135 av1_zero(*lf_sync); 136 } 137 } 138 139 static void loop_filter_data_reset(LFWorkerData *lf_data, 140 YV12_BUFFER_CONFIG *frame_buffer, 141 struct AV1Common *cm, MACROBLOCKD *xd) { 142 struct macroblockd_plane *pd = xd->plane; 143 lf_data->frame_buffer = frame_buffer; 144 lf_data->cm = cm; 145 lf_data->xd = xd; 146 for (int i = 0; i < MAX_MB_PLANE; i++) { 147 memcpy(&lf_data->planes[i].dst, &pd[i].dst, sizeof(lf_data->planes[i].dst)); 148 lf_data->planes[i].subsampling_x = pd[i].subsampling_x; 149 lf_data->planes[i].subsampling_y = pd[i].subsampling_y; 150 } 151 } 152 153 static INLINE void sync_read(AV1LfSync *const lf_sync, int r, int c, 154 int plane) { 155 #if CONFIG_MULTITHREAD 156 const int nsync = lf_sync->sync_range; 157 158 if (r && !(c & (nsync - 1))) { 159 pthread_mutex_t *const mutex = &lf_sync->mutex_[plane][r - 1]; 160 pthread_mutex_lock(mutex); 161 162 while (c > lf_sync->cur_sb_col[plane][r - 1] - nsync) { 163 pthread_cond_wait(&lf_sync->cond_[plane][r - 1], mutex); 164 } 165 pthread_mutex_unlock(mutex); 166 } 167 #else 168 (void)lf_sync; 169 (void)r; 170 (void)c; 171 (void)plane; 172 #endif // CONFIG_MULTITHREAD 173 } 174 175 static INLINE void sync_write(AV1LfSync *const lf_sync, int r, int c, 176 const int sb_cols, int plane) { 177 #if CONFIG_MULTITHREAD 178 const int nsync = lf_sync->sync_range; 179 int cur; 180 // Only signal when there are enough filtered SB for next row to run. 181 int sig = 1; 182 183 if (c < sb_cols - 1) { 184 cur = c; 185 if (c % nsync) sig = 0; 186 } else { 187 cur = sb_cols + nsync; 188 } 189 190 if (sig) { 191 pthread_mutex_lock(&lf_sync->mutex_[plane][r]); 192 193 lf_sync->cur_sb_col[plane][r] = cur; 194 195 pthread_cond_broadcast(&lf_sync->cond_[plane][r]); 196 pthread_mutex_unlock(&lf_sync->mutex_[plane][r]); 197 } 198 #else 199 (void)lf_sync; 200 (void)r; 201 (void)c; 202 (void)sb_cols; 203 (void)plane; 204 #endif // CONFIG_MULTITHREAD 205 } 206 207 static void enqueue_lf_jobs(AV1LfSync *lf_sync, AV1_COMMON *cm, int start, 208 int stop, 209 #if LOOP_FILTER_BITMASK 210 int is_decoding, 211 #endif 212 int plane_start, int plane_end) { 213 int mi_row, plane, dir; 214 AV1LfMTInfo *lf_job_queue = lf_sync->job_queue; 215 lf_sync->jobs_enqueued = 0; 216 lf_sync->jobs_dequeued = 0; 217 218 for (dir = 0; dir < 2; dir++) { 219 for (plane = plane_start; plane < plane_end; plane++) { 220 if (plane == 0 && !(cm->lf.filter_level[0]) && !(cm->lf.filter_level[1])) 221 break; 222 else if (plane == 1 && !(cm->lf.filter_level_u)) 223 continue; 224 else if (plane == 2 && !(cm->lf.filter_level_v)) 225 continue; 226 #if LOOP_FILTER_BITMASK 227 int step = MAX_MIB_SIZE; 228 if (is_decoding) { 229 step = MI_SIZE_64X64; 230 } 231 for (mi_row = start; mi_row < stop; mi_row += step) 232 #else 233 for (mi_row = start; mi_row < stop; mi_row += MAX_MIB_SIZE) 234 #endif 235 { 236 lf_job_queue->mi_row = mi_row; 237 lf_job_queue->plane = plane; 238 lf_job_queue->dir = dir; 239 lf_job_queue++; 240 lf_sync->jobs_enqueued++; 241 } 242 } 243 } 244 } 245 246 static AV1LfMTInfo *get_lf_job_info(AV1LfSync *lf_sync) { 247 AV1LfMTInfo *cur_job_info = NULL; 248 249 #if CONFIG_MULTITHREAD 250 pthread_mutex_lock(lf_sync->job_mutex); 251 252 if (lf_sync->jobs_dequeued < lf_sync->jobs_enqueued) { 253 cur_job_info = lf_sync->job_queue + lf_sync->jobs_dequeued; 254 lf_sync->jobs_dequeued++; 255 } 256 257 pthread_mutex_unlock(lf_sync->job_mutex); 258 #else 259 (void)lf_sync; 260 #endif 261 262 return cur_job_info; 263 } 264 265 // Implement row loopfiltering for each thread. 266 static INLINE void thread_loop_filter_rows( 267 const YV12_BUFFER_CONFIG *const frame_buffer, AV1_COMMON *const cm, 268 struct macroblockd_plane *planes, MACROBLOCKD *xd, 269 AV1LfSync *const lf_sync) { 270 const int sb_cols = 271 ALIGN_POWER_OF_TWO(cm->mi_cols, MAX_MIB_SIZE_LOG2) >> MAX_MIB_SIZE_LOG2; 272 int mi_row, mi_col, plane, dir; 273 int r, c; 274 275 while (1) { 276 AV1LfMTInfo *cur_job_info = get_lf_job_info(lf_sync); 277 278 if (cur_job_info != NULL) { 279 mi_row = cur_job_info->mi_row; 280 plane = cur_job_info->plane; 281 dir = cur_job_info->dir; 282 r = mi_row >> MAX_MIB_SIZE_LOG2; 283 284 if (dir == 0) { 285 for (mi_col = 0; mi_col < cm->mi_cols; mi_col += MAX_MIB_SIZE) { 286 c = mi_col >> MAX_MIB_SIZE_LOG2; 287 288 av1_setup_dst_planes(planes, cm->seq_params.sb_size, frame_buffer, 289 mi_row, mi_col, plane, plane + 1); 290 291 av1_filter_block_plane_vert(cm, xd, plane, &planes[plane], mi_row, 292 mi_col); 293 sync_write(lf_sync, r, c, sb_cols, plane); 294 } 295 } else if (dir == 1) { 296 for (mi_col = 0; mi_col < cm->mi_cols; mi_col += MAX_MIB_SIZE) { 297 c = mi_col >> MAX_MIB_SIZE_LOG2; 298 299 // Wait for vertical edge filtering of the top-right block to be 300 // completed 301 sync_read(lf_sync, r, c, plane); 302 303 // Wait for vertical edge filtering of the right block to be 304 // completed 305 sync_read(lf_sync, r + 1, c, plane); 306 307 av1_setup_dst_planes(planes, cm->seq_params.sb_size, frame_buffer, 308 mi_row, mi_col, plane, plane + 1); 309 av1_filter_block_plane_horz(cm, xd, plane, &planes[plane], mi_row, 310 mi_col); 311 } 312 } 313 } else { 314 break; 315 } 316 } 317 } 318 319 // Row-based multi-threaded loopfilter hook 320 static int loop_filter_row_worker(void *arg1, void *arg2) { 321 AV1LfSync *const lf_sync = (AV1LfSync *)arg1; 322 LFWorkerData *const lf_data = (LFWorkerData *)arg2; 323 thread_loop_filter_rows(lf_data->frame_buffer, lf_data->cm, lf_data->planes, 324 lf_data->xd, lf_sync); 325 return 1; 326 } 327 328 #if LOOP_FILTER_BITMASK 329 static INLINE void thread_loop_filter_bitmask_rows( 330 const YV12_BUFFER_CONFIG *const frame_buffer, AV1_COMMON *const cm, 331 struct macroblockd_plane *planes, MACROBLOCKD *xd, 332 AV1LfSync *const lf_sync) { 333 const int sb_cols = 334 ALIGN_POWER_OF_TWO(cm->mi_cols, MIN_MIB_SIZE_LOG2) >> MIN_MIB_SIZE_LOG2; 335 int mi_row, mi_col, plane, dir; 336 int r, c; 337 (void)xd; 338 339 while (1) { 340 AV1LfMTInfo *cur_job_info = get_lf_job_info(lf_sync); 341 342 if (cur_job_info != NULL) { 343 mi_row = cur_job_info->mi_row; 344 plane = cur_job_info->plane; 345 dir = cur_job_info->dir; 346 r = mi_row >> MIN_MIB_SIZE_LOG2; 347 348 if (dir == 0) { 349 for (mi_col = 0; mi_col < cm->mi_cols; mi_col += MI_SIZE_64X64) { 350 c = mi_col >> MIN_MIB_SIZE_LOG2; 351 352 av1_setup_dst_planes(planes, BLOCK_64X64, frame_buffer, mi_row, 353 mi_col, plane, plane + 1); 354 355 av1_filter_block_plane_bitmask_vert(cm, &planes[plane], plane, mi_row, 356 mi_col); 357 sync_write(lf_sync, r, c, sb_cols, plane); 358 } 359 } else if (dir == 1) { 360 for (mi_col = 0; mi_col < cm->mi_cols; mi_col += MI_SIZE_64X64) { 361 c = mi_col >> MIN_MIB_SIZE_LOG2; 362 363 // Wait for vertical edge filtering of the top-right block to be 364 // completed 365 sync_read(lf_sync, r, c, plane); 366 367 // Wait for vertical edge filtering of the right block to be 368 // completed 369 sync_read(lf_sync, r + 1, c, plane); 370 371 av1_setup_dst_planes(planes, BLOCK_64X64, frame_buffer, mi_row, 372 mi_col, plane, plane + 1); 373 av1_filter_block_plane_bitmask_horz(cm, &planes[plane], plane, mi_row, 374 mi_col); 375 } 376 } 377 } else { 378 break; 379 } 380 } 381 } 382 383 // Row-based multi-threaded loopfilter hook 384 static int loop_filter_bitmask_row_worker(void *arg1, void *arg2) { 385 AV1LfSync *const lf_sync = (AV1LfSync *)arg1; 386 LFWorkerData *const lf_data = (LFWorkerData *)arg2; 387 thread_loop_filter_bitmask_rows(lf_data->frame_buffer, lf_data->cm, 388 lf_data->planes, lf_data->xd, lf_sync); 389 return 1; 390 } 391 #endif // LOOP_FILTER_BITMASK 392 393 static void loop_filter_rows_mt(YV12_BUFFER_CONFIG *frame, AV1_COMMON *cm, 394 MACROBLOCKD *xd, int start, int stop, 395 int plane_start, int plane_end, 396 #if LOOP_FILTER_BITMASK 397 int is_decoding, 398 #endif 399 AVxWorker *workers, int nworkers, 400 AV1LfSync *lf_sync) { 401 const AVxWorkerInterface *const winterface = aom_get_worker_interface(); 402 #if LOOP_FILTER_BITMASK 403 int sb_rows; 404 if (is_decoding) { 405 sb_rows = 406 ALIGN_POWER_OF_TWO(cm->mi_rows, MIN_MIB_SIZE_LOG2) >> MIN_MIB_SIZE_LOG2; 407 } else { 408 sb_rows = 409 ALIGN_POWER_OF_TWO(cm->mi_rows, MAX_MIB_SIZE_LOG2) >> MAX_MIB_SIZE_LOG2; 410 } 411 #else 412 // Number of superblock rows and cols 413 const int sb_rows = 414 ALIGN_POWER_OF_TWO(cm->mi_rows, MAX_MIB_SIZE_LOG2) >> MAX_MIB_SIZE_LOG2; 415 #endif 416 const int num_workers = nworkers; 417 int i; 418 419 if (!lf_sync->sync_range || sb_rows != lf_sync->rows || 420 num_workers > lf_sync->num_workers) { 421 av1_loop_filter_dealloc(lf_sync); 422 loop_filter_alloc(lf_sync, cm, sb_rows, cm->width, num_workers); 423 } 424 425 // Initialize cur_sb_col to -1 for all SB rows. 426 for (i = 0; i < MAX_MB_PLANE; i++) { 427 memset(lf_sync->cur_sb_col[i], -1, 428 sizeof(*(lf_sync->cur_sb_col[i])) * sb_rows); 429 } 430 431 enqueue_lf_jobs(lf_sync, cm, start, stop, 432 #if LOOP_FILTER_BITMASK 433 is_decoding, 434 #endif 435 plane_start, plane_end); 436 437 // Set up loopfilter thread data. 438 for (i = 0; i < num_workers; ++i) { 439 AVxWorker *const worker = &workers[i]; 440 LFWorkerData *const lf_data = &lf_sync->lfdata[i]; 441 442 #if LOOP_FILTER_BITMASK 443 if (is_decoding) { 444 worker->hook = loop_filter_bitmask_row_worker; 445 } else { 446 worker->hook = loop_filter_row_worker; 447 } 448 #else 449 worker->hook = loop_filter_row_worker; 450 #endif 451 worker->data1 = lf_sync; 452 worker->data2 = lf_data; 453 454 // Loopfilter data 455 loop_filter_data_reset(lf_data, frame, cm, xd); 456 457 // Start loopfiltering 458 if (i == num_workers - 1) { 459 winterface->execute(worker); 460 } else { 461 winterface->launch(worker); 462 } 463 } 464 465 // Wait till all rows are finished 466 for (i = 0; i < num_workers; ++i) { 467 winterface->sync(&workers[i]); 468 } 469 } 470 471 void av1_loop_filter_frame_mt(YV12_BUFFER_CONFIG *frame, AV1_COMMON *cm, 472 MACROBLOCKD *xd, int plane_start, int plane_end, 473 int partial_frame, 474 #if LOOP_FILTER_BITMASK 475 int is_decoding, 476 #endif 477 AVxWorker *workers, int num_workers, 478 AV1LfSync *lf_sync) { 479 int start_mi_row, end_mi_row, mi_rows_to_filter; 480 481 start_mi_row = 0; 482 mi_rows_to_filter = cm->mi_rows; 483 if (partial_frame && cm->mi_rows > 8) { 484 start_mi_row = cm->mi_rows >> 1; 485 start_mi_row &= 0xfffffff8; 486 mi_rows_to_filter = AOMMAX(cm->mi_rows / 8, 8); 487 } 488 end_mi_row = start_mi_row + mi_rows_to_filter; 489 av1_loop_filter_frame_init(cm, plane_start, plane_end); 490 491 #if LOOP_FILTER_BITMASK 492 if (is_decoding) { 493 cm->is_decoding = is_decoding; 494 // TODO(chengchen): currently use one thread to build bitmasks for the 495 // frame. Make it support multi-thread later. 496 for (int plane = plane_start; plane < plane_end; plane++) { 497 if (plane == 0 && !(cm->lf.filter_level[0]) && !(cm->lf.filter_level[1])) 498 break; 499 else if (plane == 1 && !(cm->lf.filter_level_u)) 500 continue; 501 else if (plane == 2 && !(cm->lf.filter_level_v)) 502 continue; 503 504 // TODO(chengchen): can we remove this? 505 struct macroblockd_plane *pd = xd->plane; 506 av1_setup_dst_planes(pd, cm->seq_params.sb_size, frame, 0, 0, plane, 507 plane + 1); 508 509 av1_build_bitmask_vert_info(cm, &pd[plane], plane); 510 av1_build_bitmask_horz_info(cm, &pd[plane], plane); 511 } 512 loop_filter_rows_mt(frame, cm, xd, start_mi_row, end_mi_row, plane_start, 513 plane_end, 1, workers, num_workers, lf_sync); 514 } else { 515 loop_filter_rows_mt(frame, cm, xd, start_mi_row, end_mi_row, plane_start, 516 plane_end, 0, workers, num_workers, lf_sync); 517 } 518 #else 519 loop_filter_rows_mt(frame, cm, xd, start_mi_row, end_mi_row, plane_start, 520 plane_end, workers, num_workers, lf_sync); 521 #endif 522 } 523 524 static INLINE void lr_sync_read(void *const lr_sync, int r, int c, int plane) { 525 #if CONFIG_MULTITHREAD 526 AV1LrSync *const loop_res_sync = (AV1LrSync *)lr_sync; 527 const int nsync = loop_res_sync->sync_range; 528 529 if (r && !(c & (nsync - 1))) { 530 pthread_mutex_t *const mutex = &loop_res_sync->mutex_[plane][r - 1]; 531 pthread_mutex_lock(mutex); 532 533 while (c > loop_res_sync->cur_sb_col[plane][r - 1] - nsync) { 534 pthread_cond_wait(&loop_res_sync->cond_[plane][r - 1], mutex); 535 } 536 pthread_mutex_unlock(mutex); 537 } 538 #else 539 (void)lr_sync; 540 (void)r; 541 (void)c; 542 (void)plane; 543 #endif // CONFIG_MULTITHREAD 544 } 545 546 static INLINE void lr_sync_write(void *const lr_sync, int r, int c, 547 const int sb_cols, int plane) { 548 #if CONFIG_MULTITHREAD 549 AV1LrSync *const loop_res_sync = (AV1LrSync *)lr_sync; 550 const int nsync = loop_res_sync->sync_range; 551 int cur; 552 // Only signal when there are enough filtered SB for next row to run. 553 int sig = 1; 554 555 if (c < sb_cols - 1) { 556 cur = c; 557 if (c % nsync) sig = 0; 558 } else { 559 cur = sb_cols + nsync; 560 } 561 562 if (sig) { 563 pthread_mutex_lock(&loop_res_sync->mutex_[plane][r]); 564 565 loop_res_sync->cur_sb_col[plane][r] = cur; 566 567 pthread_cond_broadcast(&loop_res_sync->cond_[plane][r]); 568 pthread_mutex_unlock(&loop_res_sync->mutex_[plane][r]); 569 } 570 #else 571 (void)lr_sync; 572 (void)r; 573 (void)c; 574 (void)sb_cols; 575 (void)plane; 576 #endif // CONFIG_MULTITHREAD 577 } 578 579 // Allocate memory for loop restoration row synchronization 580 static void loop_restoration_alloc(AV1LrSync *lr_sync, AV1_COMMON *cm, 581 int num_workers, int num_rows_lr, 582 int num_planes, int width) { 583 lr_sync->rows = num_rows_lr; 584 lr_sync->num_planes = num_planes; 585 #if CONFIG_MULTITHREAD 586 { 587 int i, j; 588 589 for (j = 0; j < num_planes; j++) { 590 CHECK_MEM_ERROR(cm, lr_sync->mutex_[j], 591 aom_malloc(sizeof(*(lr_sync->mutex_[j])) * num_rows_lr)); 592 if (lr_sync->mutex_[j]) { 593 for (i = 0; i < num_rows_lr; ++i) { 594 pthread_mutex_init(&lr_sync->mutex_[j][i], NULL); 595 } 596 } 597 598 CHECK_MEM_ERROR(cm, lr_sync->cond_[j], 599 aom_malloc(sizeof(*(lr_sync->cond_[j])) * num_rows_lr)); 600 if (lr_sync->cond_[j]) { 601 for (i = 0; i < num_rows_lr; ++i) { 602 pthread_cond_init(&lr_sync->cond_[j][i], NULL); 603 } 604 } 605 } 606 607 CHECK_MEM_ERROR(cm, lr_sync->job_mutex, 608 aom_malloc(sizeof(*(lr_sync->job_mutex)))); 609 if (lr_sync->job_mutex) { 610 pthread_mutex_init(lr_sync->job_mutex, NULL); 611 } 612 } 613 #endif // CONFIG_MULTITHREAD 614 CHECK_MEM_ERROR(cm, lr_sync->lrworkerdata, 615 aom_malloc(num_workers * sizeof(*(lr_sync->lrworkerdata)))); 616 617 for (int worker_idx = 0; worker_idx < num_workers; ++worker_idx) { 618 if (worker_idx < num_workers - 1) { 619 CHECK_MEM_ERROR(cm, lr_sync->lrworkerdata[worker_idx].rst_tmpbuf, 620 (int32_t *)aom_memalign(16, RESTORATION_TMPBUF_SIZE)); 621 CHECK_MEM_ERROR(cm, lr_sync->lrworkerdata[worker_idx].rlbs, 622 aom_malloc(sizeof(RestorationLineBuffers))); 623 624 } else { 625 lr_sync->lrworkerdata[worker_idx].rst_tmpbuf = cm->rst_tmpbuf; 626 lr_sync->lrworkerdata[worker_idx].rlbs = cm->rlbs; 627 } 628 } 629 630 lr_sync->num_workers = num_workers; 631 632 for (int j = 0; j < num_planes; j++) { 633 CHECK_MEM_ERROR( 634 cm, lr_sync->cur_sb_col[j], 635 aom_malloc(sizeof(*(lr_sync->cur_sb_col[j])) * num_rows_lr)); 636 } 637 CHECK_MEM_ERROR( 638 cm, lr_sync->job_queue, 639 aom_malloc(sizeof(*(lr_sync->job_queue)) * num_rows_lr * num_planes)); 640 // Set up nsync. 641 lr_sync->sync_range = get_lr_sync_range(width); 642 } 643 644 // Deallocate loop restoration synchronization related mutex and data 645 void av1_loop_restoration_dealloc(AV1LrSync *lr_sync, int num_workers) { 646 if (lr_sync != NULL) { 647 int j; 648 #if CONFIG_MULTITHREAD 649 int i; 650 for (j = 0; j < MAX_MB_PLANE; j++) { 651 if (lr_sync->mutex_[j] != NULL) { 652 for (i = 0; i < lr_sync->rows; ++i) { 653 pthread_mutex_destroy(&lr_sync->mutex_[j][i]); 654 } 655 aom_free(lr_sync->mutex_[j]); 656 } 657 if (lr_sync->cond_[j] != NULL) { 658 for (i = 0; i < lr_sync->rows; ++i) { 659 pthread_cond_destroy(&lr_sync->cond_[j][i]); 660 } 661 aom_free(lr_sync->cond_[j]); 662 } 663 } 664 if (lr_sync->job_mutex != NULL) { 665 pthread_mutex_destroy(lr_sync->job_mutex); 666 aom_free(lr_sync->job_mutex); 667 } 668 #endif // CONFIG_MULTITHREAD 669 for (j = 0; j < MAX_MB_PLANE; j++) { 670 aom_free(lr_sync->cur_sb_col[j]); 671 } 672 673 aom_free(lr_sync->job_queue); 674 675 if (lr_sync->lrworkerdata) { 676 for (int worker_idx = 0; worker_idx < num_workers - 1; worker_idx++) { 677 LRWorkerData *const workerdata_data = 678 lr_sync->lrworkerdata + worker_idx; 679 680 aom_free(workerdata_data->rst_tmpbuf); 681 aom_free(workerdata_data->rlbs); 682 } 683 aom_free(lr_sync->lrworkerdata); 684 } 685 686 // clear the structure as the source of this call may be a resize in which 687 // case this call will be followed by an _alloc() which may fail. 688 av1_zero(*lr_sync); 689 } 690 } 691 692 static void enqueue_lr_jobs(AV1LrSync *lr_sync, AV1LrStruct *lr_ctxt, 693 AV1_COMMON *cm) { 694 FilterFrameCtxt *ctxt = lr_ctxt->ctxt; 695 696 const int num_planes = av1_num_planes(cm); 697 AV1LrMTInfo *lr_job_queue = lr_sync->job_queue; 698 int32_t lr_job_counter[2], num_even_lr_jobs = 0; 699 lr_sync->jobs_enqueued = 0; 700 lr_sync->jobs_dequeued = 0; 701 702 for (int plane = 0; plane < num_planes; plane++) { 703 if (cm->rst_info[plane].frame_restoration_type == RESTORE_NONE) continue; 704 num_even_lr_jobs = 705 num_even_lr_jobs + ((ctxt[plane].rsi->vert_units_per_tile + 1) >> 1); 706 } 707 lr_job_counter[0] = 0; 708 lr_job_counter[1] = num_even_lr_jobs; 709 710 for (int plane = 0; plane < num_planes; plane++) { 711 if (cm->rst_info[plane].frame_restoration_type == RESTORE_NONE) continue; 712 const int is_uv = plane > 0; 713 const int ss_y = is_uv && cm->seq_params.subsampling_y; 714 715 AV1PixelRect tile_rect = ctxt[plane].tile_rect; 716 const int unit_size = ctxt[plane].rsi->restoration_unit_size; 717 718 const int tile_h = tile_rect.bottom - tile_rect.top; 719 const int ext_size = unit_size * 3 / 2; 720 721 int y0 = 0, i = 0; 722 while (y0 < tile_h) { 723 int remaining_h = tile_h - y0; 724 int h = (remaining_h < ext_size) ? remaining_h : unit_size; 725 726 RestorationTileLimits limits; 727 limits.v_start = tile_rect.top + y0; 728 limits.v_end = tile_rect.top + y0 + h; 729 assert(limits.v_end <= tile_rect.bottom); 730 // Offset the tile upwards to align with the restoration processing stripe 731 const int voffset = RESTORATION_UNIT_OFFSET >> ss_y; 732 limits.v_start = AOMMAX(tile_rect.top, limits.v_start - voffset); 733 if (limits.v_end < tile_rect.bottom) limits.v_end -= voffset; 734 735 assert(lr_job_counter[0] <= num_even_lr_jobs); 736 737 lr_job_queue[lr_job_counter[i & 1]].lr_unit_row = i; 738 lr_job_queue[lr_job_counter[i & 1]].plane = plane; 739 lr_job_queue[lr_job_counter[i & 1]].v_start = limits.v_start; 740 lr_job_queue[lr_job_counter[i & 1]].v_end = limits.v_end; 741 lr_job_queue[lr_job_counter[i & 1]].sync_mode = i & 1; 742 if ((i & 1) == 0) { 743 lr_job_queue[lr_job_counter[i & 1]].v_copy_start = 744 limits.v_start + RESTORATION_BORDER; 745 lr_job_queue[lr_job_counter[i & 1]].v_copy_end = 746 limits.v_end - RESTORATION_BORDER; 747 if (i == 0) { 748 assert(limits.v_start == tile_rect.top); 749 lr_job_queue[lr_job_counter[i & 1]].v_copy_start = tile_rect.top; 750 } 751 if (i == (ctxt[plane].rsi->vert_units_per_tile - 1)) { 752 assert(limits.v_end == tile_rect.bottom); 753 lr_job_queue[lr_job_counter[i & 1]].v_copy_end = tile_rect.bottom; 754 } 755 } else { 756 lr_job_queue[lr_job_counter[i & 1]].v_copy_start = 757 AOMMAX(limits.v_start - RESTORATION_BORDER, tile_rect.top); 758 lr_job_queue[lr_job_counter[i & 1]].v_copy_end = 759 AOMMIN(limits.v_end + RESTORATION_BORDER, tile_rect.bottom); 760 } 761 lr_job_counter[i & 1]++; 762 lr_sync->jobs_enqueued++; 763 764 y0 += h; 765 ++i; 766 } 767 } 768 } 769 770 static AV1LrMTInfo *get_lr_job_info(AV1LrSync *lr_sync) { 771 AV1LrMTInfo *cur_job_info = NULL; 772 773 #if CONFIG_MULTITHREAD 774 pthread_mutex_lock(lr_sync->job_mutex); 775 776 if (lr_sync->jobs_dequeued < lr_sync->jobs_enqueued) { 777 cur_job_info = lr_sync->job_queue + lr_sync->jobs_dequeued; 778 lr_sync->jobs_dequeued++; 779 } 780 781 pthread_mutex_unlock(lr_sync->job_mutex); 782 #else 783 (void)lr_sync; 784 #endif 785 786 return cur_job_info; 787 } 788 789 // Implement row loop restoration for each thread. 790 static int loop_restoration_row_worker(void *arg1, void *arg2) { 791 AV1LrSync *const lr_sync = (AV1LrSync *)arg1; 792 LRWorkerData *lrworkerdata = (LRWorkerData *)arg2; 793 AV1LrStruct *lr_ctxt = (AV1LrStruct *)lrworkerdata->lr_ctxt; 794 FilterFrameCtxt *ctxt = lr_ctxt->ctxt; 795 int lr_unit_row; 796 int plane; 797 const int tile_row = LR_TILE_ROW; 798 const int tile_col = LR_TILE_COL; 799 const int tile_cols = LR_TILE_COLS; 800 const int tile_idx = tile_col + tile_row * tile_cols; 801 typedef void (*copy_fun)(const YV12_BUFFER_CONFIG *src_ybc, 802 YV12_BUFFER_CONFIG *dst_ybc, int hstart, int hend, 803 int vstart, int vend); 804 static const copy_fun copy_funs[3] = { aom_yv12_partial_coloc_copy_y, 805 aom_yv12_partial_coloc_copy_u, 806 aom_yv12_partial_coloc_copy_v }; 807 808 while (1) { 809 AV1LrMTInfo *cur_job_info = get_lr_job_info(lr_sync); 810 if (cur_job_info != NULL) { 811 RestorationTileLimits limits; 812 sync_read_fn_t on_sync_read; 813 sync_write_fn_t on_sync_write; 814 limits.v_start = cur_job_info->v_start; 815 limits.v_end = cur_job_info->v_end; 816 lr_unit_row = cur_job_info->lr_unit_row; 817 plane = cur_job_info->plane; 818 const int unit_idx0 = tile_idx * ctxt[plane].rsi->units_per_tile; 819 820 // sync_mode == 1 implies only sync read is required in LR Multi-threading 821 // sync_mode == 0 implies only sync write is required. 822 on_sync_read = 823 cur_job_info->sync_mode == 1 ? lr_sync_read : av1_lr_sync_read_dummy; 824 on_sync_write = cur_job_info->sync_mode == 0 ? lr_sync_write 825 : av1_lr_sync_write_dummy; 826 827 av1_foreach_rest_unit_in_row( 828 &limits, &(ctxt[plane].tile_rect), lr_ctxt->on_rest_unit, lr_unit_row, 829 ctxt[plane].rsi->restoration_unit_size, unit_idx0, 830 ctxt[plane].rsi->horz_units_per_tile, 831 ctxt[plane].rsi->vert_units_per_tile, plane, &ctxt[plane], 832 lrworkerdata->rst_tmpbuf, lrworkerdata->rlbs, on_sync_read, 833 on_sync_write, lr_sync); 834 835 copy_funs[plane](lr_ctxt->dst, lr_ctxt->frame, ctxt[plane].tile_rect.left, 836 ctxt[plane].tile_rect.right, cur_job_info->v_copy_start, 837 cur_job_info->v_copy_end); 838 } else { 839 break; 840 } 841 } 842 return 1; 843 } 844 845 static void foreach_rest_unit_in_planes_mt(AV1LrStruct *lr_ctxt, 846 AVxWorker *workers, int nworkers, 847 AV1LrSync *lr_sync, AV1_COMMON *cm) { 848 FilterFrameCtxt *ctxt = lr_ctxt->ctxt; 849 850 const int num_planes = av1_num_planes(cm); 851 852 const AVxWorkerInterface *const winterface = aom_get_worker_interface(); 853 int num_rows_lr = 0; 854 855 for (int plane = 0; plane < num_planes; plane++) { 856 if (cm->rst_info[plane].frame_restoration_type == RESTORE_NONE) continue; 857 858 const AV1PixelRect tile_rect = ctxt[plane].tile_rect; 859 const int max_tile_h = tile_rect.bottom - tile_rect.top; 860 861 const int unit_size = cm->rst_info[plane].restoration_unit_size; 862 863 num_rows_lr = 864 AOMMAX(num_rows_lr, av1_lr_count_units_in_tile(unit_size, max_tile_h)); 865 } 866 867 const int num_workers = nworkers; 868 int i; 869 assert(MAX_MB_PLANE == 3); 870 871 if (!lr_sync->sync_range || num_rows_lr != lr_sync->rows || 872 num_workers > lr_sync->num_workers || num_planes != lr_sync->num_planes) { 873 av1_loop_restoration_dealloc(lr_sync, num_workers); 874 loop_restoration_alloc(lr_sync, cm, num_workers, num_rows_lr, num_planes, 875 cm->width); 876 } 877 878 // Initialize cur_sb_col to -1 for all SB rows. 879 for (i = 0; i < num_planes; i++) { 880 memset(lr_sync->cur_sb_col[i], -1, 881 sizeof(*(lr_sync->cur_sb_col[i])) * num_rows_lr); 882 } 883 884 enqueue_lr_jobs(lr_sync, lr_ctxt, cm); 885 886 // Set up looprestoration thread data. 887 for (i = 0; i < num_workers; ++i) { 888 AVxWorker *const worker = &workers[i]; 889 lr_sync->lrworkerdata[i].lr_ctxt = (void *)lr_ctxt; 890 worker->hook = loop_restoration_row_worker; 891 worker->data1 = lr_sync; 892 worker->data2 = &lr_sync->lrworkerdata[i]; 893 894 // Start loopfiltering 895 if (i == num_workers - 1) { 896 winterface->execute(worker); 897 } else { 898 winterface->launch(worker); 899 } 900 } 901 902 // Wait till all rows are finished 903 for (i = 0; i < num_workers; ++i) { 904 winterface->sync(&workers[i]); 905 } 906 } 907 908 void av1_loop_restoration_filter_frame_mt(YV12_BUFFER_CONFIG *frame, 909 AV1_COMMON *cm, int optimized_lr, 910 AVxWorker *workers, int num_workers, 911 AV1LrSync *lr_sync, void *lr_ctxt) { 912 assert(!cm->all_lossless); 913 914 const int num_planes = av1_num_planes(cm); 915 916 AV1LrStruct *loop_rest_ctxt = (AV1LrStruct *)lr_ctxt; 917 918 av1_loop_restoration_filter_frame_init(loop_rest_ctxt, frame, cm, 919 optimized_lr, num_planes); 920 921 foreach_rest_unit_in_planes_mt(loop_rest_ctxt, workers, num_workers, lr_sync, 922 cm); 923 } 924
