vp8/encoder/ethreading.c

   1 /*
   2  *  Copyright (c) 2010 The VP8 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 "onyx_int.h"
  13 #include "threading.h"
  14 #include "common.h"
  15 #include "extend.h"
  16
  17
  18 extern int vp8cx_encode_inter_macroblock(VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t, int recon_yoffset, int recon_uvoffset);
  19 extern int vp8cx_encode_intra_macro_block(VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t);
  20 extern void vp8cx_mb_init_quantizer(VP8_COMP *cpi, MACROBLOCK *x);
  21 extern void vp8_build_block_offsets(MACROBLOCK *x);
  22 extern void vp8_setup_block_ptrs(MACROBLOCK *x);
  23
  24 static
  25 THREAD_FUNCTION thread_encoding_proc(void *p_data)
  26 {
  27 #if CONFIG_MULTITHREAD
  28     int ithread = ((ENCODETHREAD_DATA *)p_data)->ithread;
  29     VP8_COMP *cpi   = (VP8_COMP *)(((ENCODETHREAD_DATA *)p_data)->ptr1);
  30     MB_ROW_COMP *mbri = (MB_ROW_COMP *)(((ENCODETHREAD_DATA *)p_data)->ptr2);
  31     ENTROPY_CONTEXT mb_row_left_context[4][4];
  32
  33     //printf("Started thread %d\n", ithread);
  34
  35     while (1)
  36     {
  37         if (cpi->b_multi_threaded == 0)
  38             break;
  39
  40         //if(WaitForSingleObject(cpi->h_event_mbrencoding[ithread], INFINITE) == WAIT_OBJECT_0)
  41         if (sem_wait(&cpi->h_event_mbrencoding[ithread]) == 0)
  42         {
  43             if (cpi->b_multi_threaded == FALSE) // we're shutting down
  44                 break;
  45             else
  46             {
  47                 VP8_COMMON *cm      = &cpi->common;
  48                 int mb_row           = mbri->mb_row;
  49                 MACROBLOCK  *x      = &mbri->mb;
  50                 MACROBLOCKD *xd     = &x->e_mbd;
  51                 TOKENEXTRA **tp     = &mbri->tp;
  52                 int *segment_counts  = mbri->segment_counts;
  53                 int *totalrate      = &mbri->totalrate;
  54
  55                 {
  56                     int i;
  57                     int recon_yoffset, recon_uvoffset;
  58                     int mb_col;
  59                     int ref_fb_idx = cm->lst_fb_idx;
  60                     int dst_fb_idx = cm->new_fb_idx;
  61                     int recon_y_stride = cm->yv12_fb[ref_fb_idx].y_stride;
  62                     int recon_uv_stride = cm->yv12_fb[ref_fb_idx].uv_stride;
  63                     volatile int *last_row_current_mb_col;
  64
  65                     if (ithread > 0)
  66                         last_row_current_mb_col = &cpi->mb_row_ei[ithread-1].current_mb_col;
  67                     else
  68                         last_row_current_mb_col = &cpi->current_mb_col_main;
  69
  70                     // reset above block coeffs
  71                     xd->above_context[Y1CONTEXT] = cm->above_context[Y1CONTEXT];
  72                     xd->above_context[UCONTEXT ] = cm->above_context[UCONTEXT ];
  73                     xd->above_context[VCONTEXT ] = cm->above_context[VCONTEXT ];
  74                     xd->above_context[Y2CONTEXT] = cm->above_context[Y2CONTEXT];
  75                     xd->left_context = mb_row_left_context;
  76
  77                     vp8_zero(mb_row_left_context);
  78
  79                     xd->up_available = (mb_row != 0);
  80                     recon_yoffset = (mb_row * recon_y_stride * 16);
  81                     recon_uvoffset = (mb_row * recon_uv_stride * 8);
  82
  83
  84                     cpi->tplist[mb_row].start = *tp;
  85
  86                     //printf("Thread mb_row = %d\n", mb_row);
  87
  88                     // for each macroblock col in image
  89                     for (mb_col = 0; mb_col < cm->mb_cols; mb_col++)
  90                     {
  91                         int seg_map_index = (mb_row * cm->mb_cols);
  92
  93                         while (mb_col > (*last_row_current_mb_col - 1) && *last_row_current_mb_col != cm->mb_cols - 1)
  94                         {
  95                             x86_pause_hint();
  96                             thread_sleep(0);
  97                         }
  98
  99                         // Distance of Mb to the various image edges.
 100                         // These specified to 8th pel as they are always compared to values that are in 1/8th pel units
 101                         xd->mb_to_left_edge = -((mb_col * 16) << 3);
 102                         xd->mb_to_right_edge = ((cm->mb_cols - 1 - mb_col) * 16) << 3;
 103                         xd->mb_to_top_edge = -((mb_row * 16) << 3);
 104                         xd->mb_to_bottom_edge = ((cm->mb_rows - 1 - mb_row) * 16) << 3;
 105
 106                         // Set up limit values for motion vectors used to prevent them extending outside the UMV borders
 107                         x->mv_col_min = -((mb_col * 16) + (VP8BORDERINPIXELS - 16));
 108                         x->mv_col_max = ((cm->mb_cols - 1 - mb_col) * 16) + (VP8BORDERINPIXELS - 16);
 109                         x->mv_row_min = -((mb_row * 16) + (VP8BORDERINPIXELS - 16));
 110                         x->mv_row_max = ((cm->mb_rows - 1 - mb_row) * 16) + (VP8BORDERINPIXELS - 16);
 111
 112                         xd->dst.y_buffer = cm->yv12_fb[dst_fb_idx].y_buffer + recon_yoffset;
 113                         xd->dst.u_buffer = cm->yv12_fb[dst_fb_idx].u_buffer + recon_uvoffset;
 114                         xd->dst.v_buffer = cm->yv12_fb[dst_fb_idx].v_buffer + recon_uvoffset;
 115                         xd->left_available = (mb_col != 0);
 116
 117                         // Is segmentation enabled
 118                         // MB level adjutment to quantizer
 119                         if (xd->segmentation_enabled)
 120                         {
 121                             // Code to set segment id in xd->mbmi.segment_id for current MB (with range checking)
 122                             if (cpi->segmentation_map[seg_map_index+mb_col] <= 3)
 123                                 xd->mode_info_context->mbmi.segment_id = cpi->segmentation_map[seg_map_index+mb_col];
 124                             else
 125                                 xd->mode_info_context->mbmi.segment_id = 0;
 126
 127                             vp8cx_mb_init_quantizer(cpi, x);
 128                         }
 129                         else
 130                             xd->mode_info_context->mbmi.segment_id = 0;         // Set to Segment 0 by default
 131
 132
 133                         if (cm->frame_type == KEY_FRAME)
 134                         {
 135                             *totalrate += vp8cx_encode_intra_macro_block(cpi, x, tp);
 136 #ifdef MODE_STATS
 137                             y_modes[xd->mbmi.mode] ++;
 138 #endif
 139                         }
 140                         else
 141                         {
 142                             *totalrate += vp8cx_encode_inter_macroblock(cpi, x, tp, recon_yoffset, recon_uvoffset);
 143
 144 #ifdef MODE_STATS
 145                             inter_y_modes[xd->mbmi.mode] ++;
 146
 147                             if (xd->mbmi.mode == SPLITMV)
 148                             {
 149                                 int b;
 150
 151                                 for (b = 0; b < xd->mbmi.partition_count; b++)
 152                                 {
 153                                     inter_b_modes[xd->mbmi.partition_bmi[b].mode] ++;
 154                                 }
 155                             }
 156
 157 #endif
 158
 159                             // Count of last ref frame 0,0 useage
 160                             if ((xd->mode_info_context->mbmi.mode == ZEROMV) && (xd->mode_info_context->mbmi.ref_frame == LAST_FRAME))
 161                                 cpi->inter_zz_count ++;
 162
 163                         }
 164
 165                         cpi->tplist[mb_row].stop = *tp;
 166
 167                         x->gf_active_ptr++;      // Increment pointer into gf useage flags structure for next mb
 168
 169                         for (i = 0; i < 16; i++)
 170                             vpx_memcpy(&xd->mode_info_context->bmi[i], &xd->block[i].bmi, sizeof(xd->block[i].bmi));
 171
 172                         // adjust to the next column of macroblocks
 173                         x->src.y_buffer += 16;
 174                         x->src.u_buffer += 8;
 175                         x->src.v_buffer += 8;
 176
 177                         recon_yoffset += 16;
 178                         recon_uvoffset += 8;
 179
 180                         // Keep track of segment useage
 181                         segment_counts[xd->mode_info_context->mbmi.segment_id] ++;
 182
 183                         // skip to next mb
 184                         xd->mode_info_context++;
 185
 186                         xd->above_context[Y1CONTEXT] += 4;
 187                         xd->above_context[UCONTEXT ] += 2;
 188                         xd->above_context[VCONTEXT ] += 2;
 189                         xd->above_context[Y2CONTEXT] ++;
 190
 191                         cpi->mb_row_ei[ithread].current_mb_col = mb_col;
 192
 193                     }
 194
 195                     //extend the recon for intra prediction
 196                     vp8_extend_mb_row(
 197                         &cm->yv12_fb[dst_fb_idx],
 198                         xd->dst.y_buffer + 16,
 199                         xd->dst.u_buffer + 8,
 200                         xd->dst.v_buffer + 8);
 201
 202                     // this is to account for the border
 203                     xd->mode_info_context++;
 204
 205                     x->src.y_buffer += 16 * x->src.y_stride * (cpi->encoding_thread_count + 1) - 16 * cm->mb_cols;
 206                     x->src.u_buffer +=  8 * x->src.uv_stride * (cpi->encoding_thread_count + 1) - 8 * cm->mb_cols;
 207                     x->src.v_buffer +=  8 * x->src.uv_stride * (cpi->encoding_thread_count + 1) - 8 * cm->mb_cols;
 208
 209                     xd->mode_info_context += xd->mode_info_stride * cpi->encoding_thread_count;
 210
 211                     if (ithread == (cpi->encoding_thread_count - 1) || mb_row == cm->mb_rows - 1)
 212                     {
 213                         //SetEvent(cpi->h_event_main);
 214                         sem_post(&cpi->h_event_main);
 215                     }
 216
 217                 }
 218
 219             }
 220         }
 221     }
 222
 223 #else
 224     (void) p_data;
 225 #endif
 226
 227     //printf("exit thread %d\n", ithread);
 228     return 0;
 229 }
 230
 231 static void setup_mbby_copy(MACROBLOCK *mbdst, MACROBLOCK *mbsrc)
 232 {
 233
 234     MACROBLOCK *x = mbsrc;
 235     MACROBLOCK *z = mbdst;
 236     int i;
 237
 238     z->ss               = x->ss;
 239     z->ss_count          = x->ss_count;
 240     z->searches_per_step  = x->searches_per_step;
 241     z->errorperbit      = x->errorperbit;
 242
 243     z->sadperbit16      = x->sadperbit16;
 244     z->sadperbit4       = x->sadperbit4;
 245     z->errthresh        = x->errthresh;
 246     z->rddiv            = x->rddiv;
 247     z->rdmult           = x->rdmult;
 248
 249     /*
 250     z->mv_col_min    = x->mv_col_min;
 251     z->mv_col_max    = x->mv_col_max;
 252     z->mv_row_min    = x->mv_row_min;
 253     z->mv_row_max    = x->mv_row_max;
 254     z->vector_range = x->vector_range ;
 255     */
 256
 257     z->vp8_short_fdct4x4     = x->vp8_short_fdct4x4;
 258     z->vp8_short_fdct8x4     = x->vp8_short_fdct8x4;
 259     z->short_walsh4x4    = x->short_walsh4x4;
 260     z->quantize_b        = x->quantize_b;
 261
 262     /*
 263     z->mvc              = x->mvc;
 264     z->src.y_buffer      = x->src.y_buffer;
 265     z->src.u_buffer      = x->src.u_buffer;
 266     z->src.v_buffer      = x->src.v_buffer;
 267     */
 268
 269
 270     vpx_memcpy(z->mvcosts,          x->mvcosts,         sizeof(x->mvcosts));
 271     z->mvcost[0] = &z->mvcosts[0][mv_max+1];
 272     z->mvcost[1] = &z->mvcosts[1][mv_max+1];
 273     z->mvsadcost[0] = &z->mvsadcosts[0][mv_max+1];
 274     z->mvsadcost[1] = &z->mvsadcosts[1][mv_max+1];
 275
 276
 277     vpx_memcpy(z->token_costs,       x->token_costs,      sizeof(x->token_costs));
 278     vpx_memcpy(z->inter_bmode_costs,  x->inter_bmode_costs, sizeof(x->inter_bmode_costs));
 279     //memcpy(z->mvcosts,            x->mvcosts,         sizeof(x->mvcosts));
 280     //memcpy(z->mvcost,         x->mvcost,          sizeof(x->mvcost));
 281     vpx_memcpy(z->mbmode_cost,       x->mbmode_cost,      sizeof(x->mbmode_cost));
 282     vpx_memcpy(z->intra_uv_mode_cost,  x->intra_uv_mode_cost, sizeof(x->intra_uv_mode_cost));
 283     vpx_memcpy(z->bmode_costs,       x->bmode_costs,      sizeof(x->bmode_costs));
 284
 285     for (i = 0; i < 25; i++)
 286     {
 287         z->block[i].quant           = x->block[i].quant;
 288         z->block[i].quant_shift     = x->block[i].quant_shift;
 289         z->block[i].zbin            = x->block[i].zbin;
 290         z->block[i].zrun_zbin_boost   = x->block[i].zrun_zbin_boost;
 291         z->block[i].round           = x->block[i].round;
 292         /*
 293         z->block[i].src             = x->block[i].src;
 294         */
 295         z->block[i].src_stride       = x->block[i].src_stride;
 296         z->block[i].force_empty      = x->block[i].force_empty;
 297
 298     }
 299
 300     {
 301         MACROBLOCKD *xd = &x->e_mbd;
 302         MACROBLOCKD *zd = &z->e_mbd;
 303
 304         /*
 305         zd->mode_info_context = xd->mode_info_context;
 306         zd->mode_info        = xd->mode_info;
 307
 308         zd->mode_info_stride  = xd->mode_info_stride;
 309         zd->frame_type       = xd->frame_type;
 310         zd->up_available     = xd->up_available   ;
 311         zd->left_available   = xd->left_available;
 312         zd->left_context     = xd->left_context;
 313         zd->last_frame_dc     = xd->last_frame_dc;
 314         zd->last_frame_dccons = xd->last_frame_dccons;
 315         zd->gold_frame_dc     = xd->gold_frame_dc;
 316         zd->gold_frame_dccons = xd->gold_frame_dccons;
 317         zd->mb_to_left_edge    = xd->mb_to_left_edge;
 318         zd->mb_to_right_edge   = xd->mb_to_right_edge;
 319         zd->mb_to_top_edge     = xd->mb_to_top_edge   ;
 320         zd->mb_to_bottom_edge  = xd->mb_to_bottom_edge;
 321         zd->gf_active_ptr     = xd->gf_active_ptr;
 322         zd->frames_since_golden       = xd->frames_since_golden;
 323         zd->frames_till_alt_ref_frame   = xd->frames_till_alt_ref_frame;
 324         */
 325         zd->subpixel_predict         = xd->subpixel_predict;
 326         zd->subpixel_predict8x4      = xd->subpixel_predict8x4;
 327         zd->subpixel_predict8x8      = xd->subpixel_predict8x8;
 328         zd->subpixel_predict16x16    = xd->subpixel_predict16x16;
 329         zd->segmentation_enabled     = xd->segmentation_enabled;
 330         zd->mb_segement_abs_delta      = xd->mb_segement_abs_delta;
 331         vpx_memcpy(zd->segment_feature_data, xd->segment_feature_data, sizeof(xd->segment_feature_data));
 332
 333         /*
 334         memcpy(zd->above_context,        xd->above_context, sizeof(xd->above_context));
 335         memcpy(zd->mb_segment_tree_probs,  xd->mb_segment_tree_probs, sizeof(xd->mb_segment_tree_probs));
 336         memcpy(zd->segment_feature_data,  xd->segment_feature_data, sizeof(xd->segment_feature_data));
 337         */
 338         for (i = 0; i < 25; i++)
 339         {
 340             zd->block[i].dequant = xd->block[i].dequant;
 341         }
 342     }
 343 }
 344
 345
 346 void vp8cx_init_mbrthread_data(VP8_COMP *cpi,
 347                                MACROBLOCK *x,
 348                                MB_ROW_COMP *mbr_ei,
 349                                int mb_row,
 350                                int count
 351                               )
 352 {
 353
 354     VP8_COMMON *const cm = & cpi->common;
 355     MACROBLOCKD *const xd = & x->e_mbd;
 356     int i;
 357     (void) mb_row;
 358
 359     for (i = 0; i < count; i++)
 360     {
 361         MACROBLOCK *mb = & mbr_ei[i].mb;
 362         MACROBLOCKD *mbd = &mb->e_mbd;
 363
 364         mbd->subpixel_predict        = xd->subpixel_predict;
 365         mbd->subpixel_predict8x4     = xd->subpixel_predict8x4;
 366         mbd->subpixel_predict8x8     = xd->subpixel_predict8x8;
 367         mbd->subpixel_predict16x16   = xd->subpixel_predict16x16;
 368 #if CONFIG_RUNTIME_CPU_DETECT
 369         mbd->rtcd                   = xd->rtcd;
 370 #endif
 371         mb->gf_active_ptr            = x->gf_active_ptr;
 372
 373         mb->vector_range             = 32;
 374
 375         vpx_memset(mbr_ei[i].segment_counts, 0, sizeof(mbr_ei[i].segment_counts));
 376         mbr_ei[i].totalrate = 0;
 377
 378         mbd->mode_info        = cm->mi - 1;
 379         mbd->mode_info_context = cm->mi   + x->e_mbd.mode_info_stride * (i + 1);
 380         mbd->mode_info_stride  = cm->mode_info_stride;
 381
 382         mbd->frame_type = cm->frame_type;
 383
 384         mbd->frames_since_golden = cm->frames_since_golden;
 385         mbd->frames_till_alt_ref_frame = cm->frames_till_alt_ref_frame;
 386
 387         mb->src = * cpi->Source;
 388         mbd->pre = cm->yv12_fb[cm->lst_fb_idx];
 389         mbd->dst = cm->yv12_fb[cm->new_fb_idx];
 390
 391         mb->src.y_buffer += 16 * x->src.y_stride * (i + 1);
 392         mb->src.u_buffer +=  8 * x->src.uv_stride * (i + 1);
 393         mb->src.v_buffer +=  8 * x->src.uv_stride * (i + 1);
 394
 395
 396         vp8_build_block_offsets(mb);
 397
 398         vp8_setup_block_dptrs(mbd);
 399
 400         vp8_setup_block_ptrs(mb);
 401
 402         mb->rddiv = cpi->RDDIV;
 403         mb->rdmult = cpi->RDMULT;
 404
 405         mbd->left_context = cm->left_context;
 406         mb->mvc = cm->fc.mvc;
 407
 408         setup_mbby_copy(&mbr_ei[i].mb, x);
 409
 410     }
 411 }
 412
 413
 414 void vp8cx_create_encoder_threads(VP8_COMP *cpi)
 415 {
 416     cpi->b_multi_threaded = 0;
 417
 418     cpi->processor_core_count = 32; //vp8_get_proc_core_count();
 419
 420     CHECK_MEM_ERROR(cpi->tplist, vpx_malloc(sizeof(TOKENLIST) * cpi->common.mb_rows));
 421
 422 #if CONFIG_MULTITHREAD
 423
 424     if (cpi->processor_core_count > 1 && cpi->oxcf.multi_threaded > 1)
 425     {
 426         int ithread;
 427
 428         if (cpi->oxcf.multi_threaded > cpi->processor_core_count)
 429             cpi->encoding_thread_count = cpi->processor_core_count - 1;
 430         else
 431             cpi->encoding_thread_count = cpi->oxcf.multi_threaded - 1;
 432
 433
 434         CHECK_MEM_ERROR(cpi->h_encoding_thread, vpx_malloc(sizeof(pthread_t) * cpi->encoding_thread_count));
 435         CHECK_MEM_ERROR(cpi->h_event_mbrencoding, vpx_malloc(sizeof(sem_t) * cpi->encoding_thread_count));
 436         CHECK_MEM_ERROR(cpi->mb_row_ei, vpx_memalign(32, sizeof(MB_ROW_COMP) * cpi->encoding_thread_count));
 437         vpx_memset(cpi->mb_row_ei, 0, sizeof(MB_ROW_COMP) * cpi->encoding_thread_count);
 438         CHECK_MEM_ERROR(cpi->en_thread_data, vpx_malloc(sizeof(ENCODETHREAD_DATA) * cpi->encoding_thread_count));
 439         //cpi->h_event_main = CreateEvent(NULL, FALSE, FALSE, NULL);
 440         sem_init(&cpi->h_event_main, 0, 0);
 441
 442         cpi->b_multi_threaded = 1;
 443
 444         //printf("[VP8:] multi_threaded encoding is enabled with %d threads\n\n", (cpi->encoding_thread_count +1));
 445
 446         for (ithread = 0; ithread < cpi->encoding_thread_count; ithread++)
 447         {
 448             //cpi->h_event_mbrencoding[ithread] = CreateEvent(NULL, FALSE, FALSE, NULL);
 449             sem_init(&cpi->h_event_mbrencoding[ithread], 0, 0);
 450             cpi->en_thread_data[ithread].ithread = ithread;
 451             cpi->en_thread_data[ithread].ptr1 = (void *)cpi;
 452             cpi->en_thread_data[ithread].ptr2 = (void *)&cpi->mb_row_ei[ithread];
 453
 454             //printf(" call begin thread %d \n", ithread);
 455
 456             //cpi->h_encoding_thread[ithread] =   (HANDLE)_beginthreadex(
 457             //  NULL,           // security
 458             //  0,              // stksize
 459             //  thread_encoding_proc,
 460             //  (&cpi->en_thread_data[ithread]),          // Thread data
 461             //  0,
 462             //  NULL);
 463
 464             pthread_create(&cpi->h_encoding_thread[ithread], 0, thread_encoding_proc, (&cpi->en_thread_data[ithread]));
 465
 466         }
 467
 468     }
 469
 470 #endif
 471 }
 472
 473 void vp8cx_remove_encoder_threads(VP8_COMP *cpi)
 474 {
 475 #if CONFIG_MULTITHREAD
 476
 477     if (cpi->b_multi_threaded)
 478     {
 479         //shutdown other threads
 480         cpi->b_multi_threaded = 0;
 481         {
 482             int i;
 483
 484             for (i = 0; i < cpi->encoding_thread_count; i++)
 485             {
 486                 //SetEvent(cpi->h_event_mbrencoding[i]);
 487                 sem_post(&cpi->h_event_mbrencoding[i]);
 488                 pthread_join(cpi->h_encoding_thread[i], 0);
 489             }
 490
 491             for (i = 0; i < cpi->encoding_thread_count; i++)
 492                 sem_destroy(&cpi->h_event_mbrencoding[i]);
 493         }
 494         //free thread related resources
 495         vpx_free(cpi->h_event_mbrencoding);
 496         vpx_free(cpi->h_encoding_thread);
 497         vpx_free(cpi->mb_row_ei);
 498         vpx_free(cpi->en_thread_data);
 499     }
 500
 501 #endif
 502     vpx_free(cpi->tplist);
 503 }