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 #include "vpx_config.h" 12 #include "vp8_rtcd.h" 13 #if !defined(WIN32) && CONFIG_OS_SUPPORT == 1 14 #include <unistd.h> 15 #endif 16 #include "onyxd_int.h" 17 #include "vpx_mem/vpx_mem.h" 18 #include "vp8/common/threading.h" 19 20 #include "vp8/common/loopfilter.h" 21 #include "vp8/common/extend.h" 22 #include "vpx_ports/vpx_timer.h" 23 #include "detokenize.h" 24 #include "vp8/common/reconintra4x4.h" 25 #include "vp8/common/reconinter.h" 26 #include "vp8/common/reconintra.h" 27 #include "vp8/common/setupintrarecon.h" 28 #if CONFIG_ERROR_CONCEALMENT 29 #include "error_concealment.h" 30 #endif 31 32 #define CALLOC_ARRAY(p, n) CHECK_MEM_ERROR((p), vpx_calloc(sizeof(*(p)), (n))) 33 #define CALLOC_ARRAY_ALIGNED(p, n, algn) \ 34 do { \ 35 CHECK_MEM_ERROR((p), vpx_memalign((algn), sizeof(*(p)) * (n))); \ 36 memset((p), 0, (n) * sizeof(*(p))); \ 37 } while (0) 38 39 void vp8_mb_init_dequantizer(VP8D_COMP *pbi, MACROBLOCKD *xd); 40 41 static void setup_decoding_thread_data(VP8D_COMP *pbi, MACROBLOCKD *xd, 42 MB_ROW_DEC *mbrd, int count) { 43 VP8_COMMON *const pc = &pbi->common; 44 int i; 45 46 for (i = 0; i < count; ++i) { 47 MACROBLOCKD *mbd = &mbrd[i].mbd; 48 mbd->subpixel_predict = xd->subpixel_predict; 49 mbd->subpixel_predict8x4 = xd->subpixel_predict8x4; 50 mbd->subpixel_predict8x8 = xd->subpixel_predict8x8; 51 mbd->subpixel_predict16x16 = xd->subpixel_predict16x16; 52 53 mbd->frame_type = pc->frame_type; 54 mbd->pre = xd->pre; 55 mbd->dst = xd->dst; 56 57 mbd->segmentation_enabled = xd->segmentation_enabled; 58 mbd->mb_segement_abs_delta = xd->mb_segement_abs_delta; 59 memcpy(mbd->segment_feature_data, xd->segment_feature_data, 60 sizeof(xd->segment_feature_data)); 61 62 /*signed char ref_lf_deltas[MAX_REF_LF_DELTAS];*/ 63 memcpy(mbd->ref_lf_deltas, xd->ref_lf_deltas, sizeof(xd->ref_lf_deltas)); 64 /*signed char mode_lf_deltas[MAX_MODE_LF_DELTAS];*/ 65 memcpy(mbd->mode_lf_deltas, xd->mode_lf_deltas, sizeof(xd->mode_lf_deltas)); 66 /*unsigned char mode_ref_lf_delta_enabled; 67 unsigned char mode_ref_lf_delta_update;*/ 68 mbd->mode_ref_lf_delta_enabled = xd->mode_ref_lf_delta_enabled; 69 mbd->mode_ref_lf_delta_update = xd->mode_ref_lf_delta_update; 70 71 mbd->current_bc = &pbi->mbc[0]; 72 73 memcpy(mbd->dequant_y1_dc, xd->dequant_y1_dc, sizeof(xd->dequant_y1_dc)); 74 memcpy(mbd->dequant_y1, xd->dequant_y1, sizeof(xd->dequant_y1)); 75 memcpy(mbd->dequant_y2, xd->dequant_y2, sizeof(xd->dequant_y2)); 76 memcpy(mbd->dequant_uv, xd->dequant_uv, sizeof(xd->dequant_uv)); 77 78 mbd->fullpixel_mask = 0xffffffff; 79 80 if (pc->full_pixel) mbd->fullpixel_mask = 0xfffffff8; 81 } 82 83 for (i = 0; i < pc->mb_rows; ++i) pbi->mt_current_mb_col[i] = -1; 84 } 85 86 static void mt_decode_macroblock(VP8D_COMP *pbi, MACROBLOCKD *xd, 87 unsigned int mb_idx) { 88 MB_PREDICTION_MODE mode; 89 int i; 90 #if CONFIG_ERROR_CONCEALMENT 91 int corruption_detected = 0; 92 #else 93 (void)mb_idx; 94 #endif 95 96 if (xd->mode_info_context->mbmi.mb_skip_coeff) { 97 vp8_reset_mb_tokens_context(xd); 98 } else if (!vp8dx_bool_error(xd->current_bc)) { 99 int eobtotal; 100 eobtotal = vp8_decode_mb_tokens(pbi, xd); 101 102 /* Special case: Force the loopfilter to skip when eobtotal is zero */ 103 xd->mode_info_context->mbmi.mb_skip_coeff = (eobtotal == 0); 104 } 105 106 mode = xd->mode_info_context->mbmi.mode; 107 108 if (xd->segmentation_enabled) vp8_mb_init_dequantizer(pbi, xd); 109 110 #if CONFIG_ERROR_CONCEALMENT 111 112 if (pbi->ec_active) { 113 int throw_residual; 114 /* When we have independent partitions we can apply residual even 115 * though other partitions within the frame are corrupt. 116 */ 117 throw_residual = 118 (!pbi->independent_partitions && pbi->frame_corrupt_residual); 119 throw_residual = (throw_residual || vp8dx_bool_error(xd->current_bc)); 120 121 if ((mb_idx >= pbi->mvs_corrupt_from_mb || throw_residual)) { 122 /* MB with corrupt residuals or corrupt mode/motion vectors. 123 * Better to use the predictor as reconstruction. 124 */ 125 pbi->frame_corrupt_residual = 1; 126 memset(xd->qcoeff, 0, sizeof(xd->qcoeff)); 127 128 corruption_detected = 1; 129 130 /* force idct to be skipped for B_PRED and use the 131 * prediction only for reconstruction 132 * */ 133 memset(xd->eobs, 0, 25); 134 } 135 } 136 #endif 137 138 /* do prediction */ 139 if (xd->mode_info_context->mbmi.ref_frame == INTRA_FRAME) { 140 vp8_build_intra_predictors_mbuv_s( 141 xd, xd->recon_above[1], xd->recon_above[2], xd->recon_left[1], 142 xd->recon_left[2], xd->recon_left_stride[1], xd->dst.u_buffer, 143 xd->dst.v_buffer, xd->dst.uv_stride); 144 145 if (mode != B_PRED) { 146 vp8_build_intra_predictors_mby_s( 147 xd, xd->recon_above[0], xd->recon_left[0], xd->recon_left_stride[0], 148 xd->dst.y_buffer, xd->dst.y_stride); 149 } else { 150 short *DQC = xd->dequant_y1; 151 int dst_stride = xd->dst.y_stride; 152 153 /* clear out residual eob info */ 154 if (xd->mode_info_context->mbmi.mb_skip_coeff) memset(xd->eobs, 0, 25); 155 156 intra_prediction_down_copy(xd, xd->recon_above[0] + 16); 157 158 for (i = 0; i < 16; ++i) { 159 BLOCKD *b = &xd->block[i]; 160 unsigned char *dst = xd->dst.y_buffer + b->offset; 161 B_PREDICTION_MODE b_mode = xd->mode_info_context->bmi[i].as_mode; 162 unsigned char *Above; 163 unsigned char *yleft; 164 int left_stride; 165 unsigned char top_left; 166 167 /*Caution: For some b_mode, it needs 8 pixels (4 above + 4 168 * above-right).*/ 169 if (i < 4 && pbi->common.filter_level) { 170 Above = xd->recon_above[0] + b->offset; 171 } else { 172 Above = dst - dst_stride; 173 } 174 175 if (i % 4 == 0 && pbi->common.filter_level) { 176 yleft = xd->recon_left[0] + i; 177 left_stride = 1; 178 } else { 179 yleft = dst - 1; 180 left_stride = dst_stride; 181 } 182 183 if ((i == 4 || i == 8 || i == 12) && pbi->common.filter_level) { 184 top_left = *(xd->recon_left[0] + i - 1); 185 } else { 186 top_left = Above[-1]; 187 } 188 189 vp8_intra4x4_predict(Above, yleft, left_stride, b_mode, dst, dst_stride, 190 top_left); 191 192 if (xd->eobs[i]) { 193 if (xd->eobs[i] > 1) { 194 vp8_dequant_idct_add(b->qcoeff, DQC, dst, dst_stride); 195 } else { 196 vp8_dc_only_idct_add(b->qcoeff[0] * DQC[0], dst, dst_stride, dst, 197 dst_stride); 198 memset(b->qcoeff, 0, 2 * sizeof(b->qcoeff[0])); 199 } 200 } 201 } 202 } 203 } else { 204 vp8_build_inter_predictors_mb(xd); 205 } 206 207 #if CONFIG_ERROR_CONCEALMENT 208 if (corruption_detected) { 209 return; 210 } 211 #endif 212 213 if (!xd->mode_info_context->mbmi.mb_skip_coeff) { 214 /* dequantization and idct */ 215 if (mode != B_PRED) { 216 short *DQC = xd->dequant_y1; 217 218 if (mode != SPLITMV) { 219 BLOCKD *b = &xd->block[24]; 220 221 /* do 2nd order transform on the dc block */ 222 if (xd->eobs[24] > 1) { 223 vp8_dequantize_b(b, xd->dequant_y2); 224 225 vp8_short_inv_walsh4x4(&b->dqcoeff[0], xd->qcoeff); 226 memset(b->qcoeff, 0, 16 * sizeof(b->qcoeff[0])); 227 } else { 228 b->dqcoeff[0] = b->qcoeff[0] * xd->dequant_y2[0]; 229 vp8_short_inv_walsh4x4_1(&b->dqcoeff[0], xd->qcoeff); 230 memset(b->qcoeff, 0, 2 * sizeof(b->qcoeff[0])); 231 } 232 233 /* override the dc dequant constant in order to preserve the 234 * dc components 235 */ 236 DQC = xd->dequant_y1_dc; 237 } 238 239 vp8_dequant_idct_add_y_block(xd->qcoeff, DQC, xd->dst.y_buffer, 240 xd->dst.y_stride, xd->eobs); 241 } 242 243 vp8_dequant_idct_add_uv_block(xd->qcoeff + 16 * 16, xd->dequant_uv, 244 xd->dst.u_buffer, xd->dst.v_buffer, 245 xd->dst.uv_stride, xd->eobs + 16); 246 } 247 } 248 249 static void mt_decode_mb_rows(VP8D_COMP *pbi, MACROBLOCKD *xd, 250 int start_mb_row) { 251 const int *last_row_current_mb_col; 252 int *current_mb_col; 253 int mb_row; 254 VP8_COMMON *pc = &pbi->common; 255 const int nsync = pbi->sync_range; 256 const int first_row_no_sync_above = pc->mb_cols + nsync; 257 int num_part = 1 << pbi->common.multi_token_partition; 258 int last_mb_row = start_mb_row; 259 260 YV12_BUFFER_CONFIG *yv12_fb_new = pbi->dec_fb_ref[INTRA_FRAME]; 261 YV12_BUFFER_CONFIG *yv12_fb_lst = pbi->dec_fb_ref[LAST_FRAME]; 262 263 int recon_y_stride = yv12_fb_new->y_stride; 264 int recon_uv_stride = yv12_fb_new->uv_stride; 265 266 unsigned char *ref_buffer[MAX_REF_FRAMES][3]; 267 unsigned char *dst_buffer[3]; 268 int i; 269 int ref_fb_corrupted[MAX_REF_FRAMES]; 270 271 ref_fb_corrupted[INTRA_FRAME] = 0; 272 273 for (i = 1; i < MAX_REF_FRAMES; ++i) { 274 YV12_BUFFER_CONFIG *this_fb = pbi->dec_fb_ref[i]; 275 276 ref_buffer[i][0] = this_fb->y_buffer; 277 ref_buffer[i][1] = this_fb->u_buffer; 278 ref_buffer[i][2] = this_fb->v_buffer; 279 280 ref_fb_corrupted[i] = this_fb->corrupted; 281 } 282 283 dst_buffer[0] = yv12_fb_new->y_buffer; 284 dst_buffer[1] = yv12_fb_new->u_buffer; 285 dst_buffer[2] = yv12_fb_new->v_buffer; 286 287 xd->up_available = (start_mb_row != 0); 288 289 xd->mode_info_context = pc->mi + pc->mode_info_stride * start_mb_row; 290 xd->mode_info_stride = pc->mode_info_stride; 291 292 for (mb_row = start_mb_row; mb_row < pc->mb_rows; 293 mb_row += (pbi->decoding_thread_count + 1)) { 294 int recon_yoffset, recon_uvoffset; 295 int mb_col; 296 int filter_level; 297 loop_filter_info_n *lfi_n = &pc->lf_info; 298 299 /* save last row processed by this thread */ 300 last_mb_row = mb_row; 301 /* select bool coder for current partition */ 302 xd->current_bc = &pbi->mbc[mb_row % num_part]; 303 304 if (mb_row > 0) { 305 last_row_current_mb_col = &pbi->mt_current_mb_col[mb_row - 1]; 306 } else { 307 last_row_current_mb_col = &first_row_no_sync_above; 308 } 309 310 current_mb_col = &pbi->mt_current_mb_col[mb_row]; 311 312 recon_yoffset = mb_row * recon_y_stride * 16; 313 recon_uvoffset = mb_row * recon_uv_stride * 8; 314 315 /* reset contexts */ 316 xd->above_context = pc->above_context; 317 memset(xd->left_context, 0, sizeof(ENTROPY_CONTEXT_PLANES)); 318 319 xd->left_available = 0; 320 321 xd->mb_to_top_edge = -((mb_row * 16) << 3); 322 xd->mb_to_bottom_edge = ((pc->mb_rows - 1 - mb_row) * 16) << 3; 323 324 if (pbi->common.filter_level) { 325 xd->recon_above[0] = pbi->mt_yabove_row[mb_row] + 0 * 16 + 32; 326 xd->recon_above[1] = pbi->mt_uabove_row[mb_row] + 0 * 8 + 16; 327 xd->recon_above[2] = pbi->mt_vabove_row[mb_row] + 0 * 8 + 16; 328 329 xd->recon_left[0] = pbi->mt_yleft_col[mb_row]; 330 xd->recon_left[1] = pbi->mt_uleft_col[mb_row]; 331 xd->recon_left[2] = pbi->mt_vleft_col[mb_row]; 332 333 /* TODO: move to outside row loop */ 334 xd->recon_left_stride[0] = 1; 335 xd->recon_left_stride[1] = 1; 336 } else { 337 xd->recon_above[0] = dst_buffer[0] + recon_yoffset; 338 xd->recon_above[1] = dst_buffer[1] + recon_uvoffset; 339 xd->recon_above[2] = dst_buffer[2] + recon_uvoffset; 340 341 xd->recon_left[0] = xd->recon_above[0] - 1; 342 xd->recon_left[1] = xd->recon_above[1] - 1; 343 xd->recon_left[2] = xd->recon_above[2] - 1; 344 345 xd->recon_above[0] -= xd->dst.y_stride; 346 xd->recon_above[1] -= xd->dst.uv_stride; 347 xd->recon_above[2] -= xd->dst.uv_stride; 348 349 /* TODO: move to outside row loop */ 350 xd->recon_left_stride[0] = xd->dst.y_stride; 351 xd->recon_left_stride[1] = xd->dst.uv_stride; 352 353 setup_intra_recon_left(xd->recon_left[0], xd->recon_left[1], 354 xd->recon_left[2], xd->dst.y_stride, 355 xd->dst.uv_stride); 356 } 357 358 for (mb_col = 0; mb_col < pc->mb_cols; ++mb_col) { 359 if (((mb_col - 1) % nsync) == 0) { 360 pthread_mutex_t *mutex = &pbi->pmutex[mb_row]; 361 protected_write(mutex, current_mb_col, mb_col - 1); 362 } 363 364 if (mb_row && !(mb_col & (nsync - 1))) { 365 pthread_mutex_t *mutex = &pbi->pmutex[mb_row - 1]; 366 sync_read(mutex, mb_col, last_row_current_mb_col, nsync); 367 } 368 369 /* Distance of MB to the various image edges. 370 * These are specified to 8th pel as they are always 371 * compared to values that are in 1/8th pel units. 372 */ 373 xd->mb_to_left_edge = -((mb_col * 16) << 3); 374 xd->mb_to_right_edge = ((pc->mb_cols - 1 - mb_col) * 16) << 3; 375 376 #if CONFIG_ERROR_CONCEALMENT 377 { 378 int corrupt_residual = 379 (!pbi->independent_partitions && pbi->frame_corrupt_residual) || 380 vp8dx_bool_error(xd->current_bc); 381 if (pbi->ec_active && 382 (xd->mode_info_context->mbmi.ref_frame == INTRA_FRAME) && 383 corrupt_residual) { 384 /* We have an intra block with corrupt 385 * coefficients, better to conceal with an inter 386 * block. 387 * Interpolate MVs from neighboring MBs 388 * 389 * Note that for the first mb with corrupt 390 * residual in a frame, we might not discover 391 * that before decoding the residual. That 392 * happens after this check, and therefore no 393 * inter concealment will be done. 394 */ 395 vp8_interpolate_motion(xd, mb_row, mb_col, pc->mb_rows, pc->mb_cols); 396 } 397 } 398 #endif 399 400 xd->dst.y_buffer = dst_buffer[0] + recon_yoffset; 401 xd->dst.u_buffer = dst_buffer[1] + recon_uvoffset; 402 xd->dst.v_buffer = dst_buffer[2] + recon_uvoffset; 403 404 xd->pre.y_buffer = 405 ref_buffer[xd->mode_info_context->mbmi.ref_frame][0] + recon_yoffset; 406 xd->pre.u_buffer = 407 ref_buffer[xd->mode_info_context->mbmi.ref_frame][1] + recon_uvoffset; 408 xd->pre.v_buffer = 409 ref_buffer[xd->mode_info_context->mbmi.ref_frame][2] + recon_uvoffset; 410 411 /* propagate errors from reference frames */ 412 xd->corrupted |= ref_fb_corrupted[xd->mode_info_context->mbmi.ref_frame]; 413 414 mt_decode_macroblock(pbi, xd, 0); 415 416 xd->left_available = 1; 417 418 /* check if the boolean decoder has suffered an error */ 419 xd->corrupted |= vp8dx_bool_error(xd->current_bc); 420 421 xd->recon_above[0] += 16; 422 xd->recon_above[1] += 8; 423 xd->recon_above[2] += 8; 424 425 if (!pbi->common.filter_level) { 426 xd->recon_left[0] += 16; 427 xd->recon_left[1] += 8; 428 xd->recon_left[2] += 8; 429 } 430 431 if (pbi->common.filter_level) { 432 int skip_lf = (xd->mode_info_context->mbmi.mode != B_PRED && 433 xd->mode_info_context->mbmi.mode != SPLITMV && 434 xd->mode_info_context->mbmi.mb_skip_coeff); 435 436 const int mode_index = 437 lfi_n->mode_lf_lut[xd->mode_info_context->mbmi.mode]; 438 const int seg = xd->mode_info_context->mbmi.segment_id; 439 const int ref_frame = xd->mode_info_context->mbmi.ref_frame; 440 441 filter_level = lfi_n->lvl[seg][ref_frame][mode_index]; 442 443 if (mb_row != pc->mb_rows - 1) { 444 /* Save decoded MB last row data for next-row decoding */ 445 memcpy((pbi->mt_yabove_row[mb_row + 1] + 32 + mb_col * 16), 446 (xd->dst.y_buffer + 15 * recon_y_stride), 16); 447 memcpy((pbi->mt_uabove_row[mb_row + 1] + 16 + mb_col * 8), 448 (xd->dst.u_buffer + 7 * recon_uv_stride), 8); 449 memcpy((pbi->mt_vabove_row[mb_row + 1] + 16 + mb_col * 8), 450 (xd->dst.v_buffer + 7 * recon_uv_stride), 8); 451 } 452 453 /* save left_col for next MB decoding */ 454 if (mb_col != pc->mb_cols - 1) { 455 MODE_INFO *next = xd->mode_info_context + 1; 456 457 if (next->mbmi.ref_frame == INTRA_FRAME) { 458 for (i = 0; i < 16; ++i) { 459 pbi->mt_yleft_col[mb_row][i] = 460 xd->dst.y_buffer[i * recon_y_stride + 15]; 461 } 462 for (i = 0; i < 8; ++i) { 463 pbi->mt_uleft_col[mb_row][i] = 464 xd->dst.u_buffer[i * recon_uv_stride + 7]; 465 pbi->mt_vleft_col[mb_row][i] = 466 xd->dst.v_buffer[i * recon_uv_stride + 7]; 467 } 468 } 469 } 470 471 /* loopfilter on this macroblock. */ 472 if (filter_level) { 473 if (pc->filter_type == NORMAL_LOOPFILTER) { 474 loop_filter_info lfi; 475 FRAME_TYPE frame_type = pc->frame_type; 476 const int hev_index = lfi_n->hev_thr_lut[frame_type][filter_level]; 477 lfi.mblim = lfi_n->mblim[filter_level]; 478 lfi.blim = lfi_n->blim[filter_level]; 479 lfi.lim = lfi_n->lim[filter_level]; 480 lfi.hev_thr = lfi_n->hev_thr[hev_index]; 481 482 if (mb_col > 0) 483 vp8_loop_filter_mbv(xd->dst.y_buffer, xd->dst.u_buffer, 484 xd->dst.v_buffer, recon_y_stride, 485 recon_uv_stride, &lfi); 486 487 if (!skip_lf) 488 vp8_loop_filter_bv(xd->dst.y_buffer, xd->dst.u_buffer, 489 xd->dst.v_buffer, recon_y_stride, 490 recon_uv_stride, &lfi); 491 492 /* don't apply across umv border */ 493 if (mb_row > 0) 494 vp8_loop_filter_mbh(xd->dst.y_buffer, xd->dst.u_buffer, 495 xd->dst.v_buffer, recon_y_stride, 496 recon_uv_stride, &lfi); 497 498 if (!skip_lf) 499 vp8_loop_filter_bh(xd->dst.y_buffer, xd->dst.u_buffer, 500 xd->dst.v_buffer, recon_y_stride, 501 recon_uv_stride, &lfi); 502 } else { 503 if (mb_col > 0) 504 vp8_loop_filter_simple_mbv(xd->dst.y_buffer, recon_y_stride, 505 lfi_n->mblim[filter_level]); 506 507 if (!skip_lf) 508 vp8_loop_filter_simple_bv(xd->dst.y_buffer, recon_y_stride, 509 lfi_n->blim[filter_level]); 510 511 /* don't apply across umv border */ 512 if (mb_row > 0) 513 vp8_loop_filter_simple_mbh(xd->dst.y_buffer, recon_y_stride, 514 lfi_n->mblim[filter_level]); 515 516 if (!skip_lf) 517 vp8_loop_filter_simple_bh(xd->dst.y_buffer, recon_y_stride, 518 lfi_n->blim[filter_level]); 519 } 520 } 521 } 522 523 recon_yoffset += 16; 524 recon_uvoffset += 8; 525 526 ++xd->mode_info_context; /* next mb */ 527 528 xd->above_context++; 529 } 530 531 /* adjust to the next row of mbs */ 532 if (pbi->common.filter_level) { 533 if (mb_row != pc->mb_rows - 1) { 534 int lasty = yv12_fb_lst->y_width + VP8BORDERINPIXELS; 535 int lastuv = (yv12_fb_lst->y_width >> 1) + (VP8BORDERINPIXELS >> 1); 536 537 for (i = 0; i < 4; ++i) { 538 pbi->mt_yabove_row[mb_row + 1][lasty + i] = 539 pbi->mt_yabove_row[mb_row + 1][lasty - 1]; 540 pbi->mt_uabove_row[mb_row + 1][lastuv + i] = 541 pbi->mt_uabove_row[mb_row + 1][lastuv - 1]; 542 pbi->mt_vabove_row[mb_row + 1][lastuv + i] = 543 pbi->mt_vabove_row[mb_row + 1][lastuv - 1]; 544 } 545 } 546 } else { 547 vp8_extend_mb_row(yv12_fb_new, xd->dst.y_buffer + 16, 548 xd->dst.u_buffer + 8, xd->dst.v_buffer + 8); 549 } 550 551 /* last MB of row is ready just after extension is done */ 552 protected_write(&pbi->pmutex[mb_row], current_mb_col, mb_col + nsync); 553 554 ++xd->mode_info_context; /* skip prediction column */ 555 xd->up_available = 1; 556 557 /* since we have multithread */ 558 xd->mode_info_context += xd->mode_info_stride * pbi->decoding_thread_count; 559 } 560 561 /* signal end of frame decoding if this thread processed the last mb_row */ 562 if (last_mb_row == (pc->mb_rows - 1)) sem_post(&pbi->h_event_end_decoding); 563 } 564 565 static THREAD_FUNCTION thread_decoding_proc(void *p_data) { 566 int ithread = ((DECODETHREAD_DATA *)p_data)->ithread; 567 VP8D_COMP *pbi = (VP8D_COMP *)(((DECODETHREAD_DATA *)p_data)->ptr1); 568 MB_ROW_DEC *mbrd = (MB_ROW_DEC *)(((DECODETHREAD_DATA *)p_data)->ptr2); 569 ENTROPY_CONTEXT_PLANES mb_row_left_context; 570 571 while (1) { 572 if (protected_read(&pbi->mt_mutex, &pbi->b_multithreaded_rd) == 0) break; 573 574 if (sem_wait(&pbi->h_event_start_decoding[ithread]) == 0) { 575 if (protected_read(&pbi->mt_mutex, &pbi->b_multithreaded_rd) == 0) { 576 break; 577 } else { 578 MACROBLOCKD *xd = &mbrd->mbd; 579 xd->left_context = &mb_row_left_context; 580 581 mt_decode_mb_rows(pbi, xd, ithread + 1); 582 } 583 } 584 } 585 586 return 0; 587 } 588 589 void vp8_decoder_create_threads(VP8D_COMP *pbi) { 590 int core_count = 0; 591 unsigned int ithread; 592 593 pbi->b_multithreaded_rd = 0; 594 pbi->allocated_decoding_thread_count = 0; 595 pthread_mutex_init(&pbi->mt_mutex, NULL); 596 597 /* limit decoding threads to the max number of token partitions */ 598 core_count = (pbi->max_threads > 8) ? 8 : pbi->max_threads; 599 600 /* limit decoding threads to the available cores */ 601 if (core_count > pbi->common.processor_core_count) { 602 core_count = pbi->common.processor_core_count; 603 } 604 605 if (core_count > 1) { 606 pbi->b_multithreaded_rd = 1; 607 pbi->decoding_thread_count = core_count - 1; 608 609 CALLOC_ARRAY(pbi->h_decoding_thread, pbi->decoding_thread_count); 610 CALLOC_ARRAY(pbi->h_event_start_decoding, pbi->decoding_thread_count); 611 CALLOC_ARRAY_ALIGNED(pbi->mb_row_di, pbi->decoding_thread_count, 32); 612 CALLOC_ARRAY(pbi->de_thread_data, pbi->decoding_thread_count); 613 614 if (sem_init(&pbi->h_event_end_decoding, 0, 0)) { 615 vpx_internal_error(&pbi->common.error, VPX_CODEC_MEM_ERROR, 616 "Failed to initialize semaphore"); 617 } 618 619 for (ithread = 0; ithread < pbi->decoding_thread_count; ++ithread) { 620 if (sem_init(&pbi->h_event_start_decoding[ithread], 0, 0)) break; 621 622 vp8_setup_block_dptrs(&pbi->mb_row_di[ithread].mbd); 623 624 pbi->de_thread_data[ithread].ithread = ithread; 625 pbi->de_thread_data[ithread].ptr1 = (void *)pbi; 626 pbi->de_thread_data[ithread].ptr2 = (void *)&pbi->mb_row_di[ithread]; 627 628 if (pthread_create(&pbi->h_decoding_thread[ithread], 0, 629 thread_decoding_proc, &pbi->de_thread_data[ithread])) { 630 sem_destroy(&pbi->h_event_start_decoding[ithread]); 631 break; 632 } 633 } 634 635 pbi->allocated_decoding_thread_count = ithread; 636 if (pbi->allocated_decoding_thread_count != 637 (int)pbi->decoding_thread_count) { 638 /* the remainder of cleanup cases will be handled in 639 * vp8_decoder_remove_threads(). */ 640 if (pbi->allocated_decoding_thread_count == 0) { 641 sem_destroy(&pbi->h_event_end_decoding); 642 } 643 vpx_internal_error(&pbi->common.error, VPX_CODEC_MEM_ERROR, 644 "Failed to create threads"); 645 } 646 } 647 } 648 649 void vp8mt_de_alloc_temp_buffers(VP8D_COMP *pbi, int mb_rows) { 650 int i; 651 652 /* De-allocate mutex */ 653 if (pbi->pmutex != NULL) { 654 for (i = 0; i < mb_rows; ++i) { 655 pthread_mutex_destroy(&pbi->pmutex[i]); 656 } 657 658 vpx_free(pbi->pmutex); 659 pbi->pmutex = NULL; 660 } 661 662 vpx_free(pbi->mt_current_mb_col); 663 pbi->mt_current_mb_col = NULL; 664 665 /* Free above_row buffers. */ 666 if (pbi->mt_yabove_row) { 667 for (i = 0; i < mb_rows; ++i) { 668 vpx_free(pbi->mt_yabove_row[i]); 669 pbi->mt_yabove_row[i] = NULL; 670 } 671 vpx_free(pbi->mt_yabove_row); 672 pbi->mt_yabove_row = NULL; 673 } 674 675 if (pbi->mt_uabove_row) { 676 for (i = 0; i < mb_rows; ++i) { 677 vpx_free(pbi->mt_uabove_row[i]); 678 pbi->mt_uabove_row[i] = NULL; 679 } 680 vpx_free(pbi->mt_uabove_row); 681 pbi->mt_uabove_row = NULL; 682 } 683 684 if (pbi->mt_vabove_row) { 685 for (i = 0; i < mb_rows; ++i) { 686 vpx_free(pbi->mt_vabove_row[i]); 687 pbi->mt_vabove_row[i] = NULL; 688 } 689 vpx_free(pbi->mt_vabove_row); 690 pbi->mt_vabove_row = NULL; 691 } 692 693 /* Free left_col buffers. */ 694 if (pbi->mt_yleft_col) { 695 for (i = 0; i < mb_rows; ++i) { 696 vpx_free(pbi->mt_yleft_col[i]); 697 pbi->mt_yleft_col[i] = NULL; 698 } 699 vpx_free(pbi->mt_yleft_col); 700 pbi->mt_yleft_col = NULL; 701 } 702 703 if (pbi->mt_uleft_col) { 704 for (i = 0; i < mb_rows; ++i) { 705 vpx_free(pbi->mt_uleft_col[i]); 706 pbi->mt_uleft_col[i] = NULL; 707 } 708 vpx_free(pbi->mt_uleft_col); 709 pbi->mt_uleft_col = NULL; 710 } 711 712 if (pbi->mt_vleft_col) { 713 for (i = 0; i < mb_rows; ++i) { 714 vpx_free(pbi->mt_vleft_col[i]); 715 pbi->mt_vleft_col[i] = NULL; 716 } 717 vpx_free(pbi->mt_vleft_col); 718 pbi->mt_vleft_col = NULL; 719 } 720 } 721 722 void vp8mt_alloc_temp_buffers(VP8D_COMP *pbi, int width, int prev_mb_rows) { 723 VP8_COMMON *const pc = &pbi->common; 724 int i; 725 int uv_width; 726 727 if (protected_read(&pbi->mt_mutex, &pbi->b_multithreaded_rd)) { 728 vp8mt_de_alloc_temp_buffers(pbi, prev_mb_rows); 729 730 /* our internal buffers are always multiples of 16 */ 731 if ((width & 0xf) != 0) width += 16 - (width & 0xf); 732 733 if (width < 640) { 734 pbi->sync_range = 1; 735 } else if (width <= 1280) { 736 pbi->sync_range = 8; 737 } else if (width <= 2560) { 738 pbi->sync_range = 16; 739 } else { 740 pbi->sync_range = 32; 741 } 742 743 uv_width = width >> 1; 744 745 /* Allocate mutex */ 746 CHECK_MEM_ERROR(pbi->pmutex, 747 vpx_malloc(sizeof(*pbi->pmutex) * pc->mb_rows)); 748 if (pbi->pmutex) { 749 for (i = 0; i < pc->mb_rows; ++i) { 750 pthread_mutex_init(&pbi->pmutex[i], NULL); 751 } 752 } 753 754 /* Allocate an int for each mb row. */ 755 CALLOC_ARRAY(pbi->mt_current_mb_col, pc->mb_rows); 756 757 /* Allocate memory for above_row buffers. */ 758 CALLOC_ARRAY(pbi->mt_yabove_row, pc->mb_rows); 759 for (i = 0; i < pc->mb_rows; ++i) 760 CHECK_MEM_ERROR(pbi->mt_yabove_row[i], 761 vpx_memalign(16, sizeof(unsigned char) * 762 (width + (VP8BORDERINPIXELS << 1)))); 763 764 CALLOC_ARRAY(pbi->mt_uabove_row, pc->mb_rows); 765 for (i = 0; i < pc->mb_rows; ++i) 766 CHECK_MEM_ERROR(pbi->mt_uabove_row[i], 767 vpx_memalign(16, sizeof(unsigned char) * 768 (uv_width + VP8BORDERINPIXELS))); 769 770 CALLOC_ARRAY(pbi->mt_vabove_row, pc->mb_rows); 771 for (i = 0; i < pc->mb_rows; ++i) 772 CHECK_MEM_ERROR(pbi->mt_vabove_row[i], 773 vpx_memalign(16, sizeof(unsigned char) * 774 (uv_width + VP8BORDERINPIXELS))); 775 776 /* Allocate memory for left_col buffers. */ 777 CALLOC_ARRAY(pbi->mt_yleft_col, pc->mb_rows); 778 for (i = 0; i < pc->mb_rows; ++i) 779 CHECK_MEM_ERROR(pbi->mt_yleft_col[i], 780 vpx_calloc(sizeof(unsigned char) * 16, 1)); 781 782 CALLOC_ARRAY(pbi->mt_uleft_col, pc->mb_rows); 783 for (i = 0; i < pc->mb_rows; ++i) 784 CHECK_MEM_ERROR(pbi->mt_uleft_col[i], 785 vpx_calloc(sizeof(unsigned char) * 8, 1)); 786 787 CALLOC_ARRAY(pbi->mt_vleft_col, pc->mb_rows); 788 for (i = 0; i < pc->mb_rows; ++i) 789 CHECK_MEM_ERROR(pbi->mt_vleft_col[i], 790 vpx_calloc(sizeof(unsigned char) * 8, 1)); 791 } 792 } 793 794 void vp8_decoder_remove_threads(VP8D_COMP *pbi) { 795 /* shutdown MB Decoding thread; */ 796 if (protected_read(&pbi->mt_mutex, &pbi->b_multithreaded_rd)) { 797 int i; 798 protected_write(&pbi->mt_mutex, &pbi->b_multithreaded_rd, 0); 799 800 /* allow all threads to exit */ 801 for (i = 0; i < pbi->allocated_decoding_thread_count; ++i) { 802 sem_post(&pbi->h_event_start_decoding[i]); 803 pthread_join(pbi->h_decoding_thread[i], NULL); 804 } 805 806 for (i = 0; i < pbi->allocated_decoding_thread_count; ++i) { 807 sem_destroy(&pbi->h_event_start_decoding[i]); 808 } 809 810 if (pbi->allocated_decoding_thread_count) { 811 sem_destroy(&pbi->h_event_end_decoding); 812 } 813 814 vpx_free(pbi->h_decoding_thread); 815 pbi->h_decoding_thread = NULL; 816 817 vpx_free(pbi->h_event_start_decoding); 818 pbi->h_event_start_decoding = NULL; 819 820 vpx_free(pbi->mb_row_di); 821 pbi->mb_row_di = NULL; 822 823 vpx_free(pbi->de_thread_data); 824 pbi->de_thread_data = NULL; 825 826 vp8mt_de_alloc_temp_buffers(pbi, pbi->common.mb_rows); 827 } 828 pthread_mutex_destroy(&pbi->mt_mutex); 829 } 830 831 void vp8mt_decode_mb_rows(VP8D_COMP *pbi, MACROBLOCKD *xd) { 832 VP8_COMMON *pc = &pbi->common; 833 unsigned int i; 834 int j; 835 836 int filter_level = pc->filter_level; 837 YV12_BUFFER_CONFIG *yv12_fb_new = pbi->dec_fb_ref[INTRA_FRAME]; 838 839 if (filter_level) { 840 /* Set above_row buffer to 127 for decoding first MB row */ 841 memset(pbi->mt_yabove_row[0] + VP8BORDERINPIXELS - 1, 127, 842 yv12_fb_new->y_width + 5); 843 memset(pbi->mt_uabove_row[0] + (VP8BORDERINPIXELS >> 1) - 1, 127, 844 (yv12_fb_new->y_width >> 1) + 5); 845 memset(pbi->mt_vabove_row[0] + (VP8BORDERINPIXELS >> 1) - 1, 127, 846 (yv12_fb_new->y_width >> 1) + 5); 847 848 for (j = 1; j < pc->mb_rows; ++j) { 849 memset(pbi->mt_yabove_row[j] + VP8BORDERINPIXELS - 1, (unsigned char)129, 850 1); 851 memset(pbi->mt_uabove_row[j] + (VP8BORDERINPIXELS >> 1) - 1, 852 (unsigned char)129, 1); 853 memset(pbi->mt_vabove_row[j] + (VP8BORDERINPIXELS >> 1) - 1, 854 (unsigned char)129, 1); 855 } 856 857 /* Set left_col to 129 initially */ 858 for (j = 0; j < pc->mb_rows; ++j) { 859 memset(pbi->mt_yleft_col[j], (unsigned char)129, 16); 860 memset(pbi->mt_uleft_col[j], (unsigned char)129, 8); 861 memset(pbi->mt_vleft_col[j], (unsigned char)129, 8); 862 } 863 864 /* Initialize the loop filter for this frame. */ 865 vp8_loop_filter_frame_init(pc, &pbi->mb, filter_level); 866 } else { 867 vp8_setup_intra_recon_top_line(yv12_fb_new); 868 } 869 870 setup_decoding_thread_data(pbi, xd, pbi->mb_row_di, 871 pbi->decoding_thread_count); 872 873 for (i = 0; i < pbi->decoding_thread_count; ++i) { 874 sem_post(&pbi->h_event_start_decoding[i]); 875 } 876 877 mt_decode_mb_rows(pbi, xd, 0); 878 879 sem_wait(&pbi->h_event_end_decoding); /* add back for each frame */ 880 } 881
