vp8/encoder/ethreading.c

   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 "onyx_int.h"
  12 #include "threading.h"
  13 #include "common.h"
  14 #include "extend.h"
  15
  16 extern int vp8cx_encode_inter_macroblock(VP8_COMP *cpi, MACROBLOCK *x,
  17                                          TOKENEXTRA **t, int recon_yoffset,
  18                                          int recon_uvoffset);
  19 extern int vp8cx_encode_intra_macro_block(VP8_COMP *cpi, MACROBLOCK *x,
  20                                           TOKENEXTRA **t);
  21 extern void vp8cx_mb_init_quantizer(VP8_COMP *cpi, MACROBLOCK *x);
  22 extern void vp8_build_block_offsets(MACROBLOCK *x);
  23 extern void vp8_setup_block_ptrs(MACROBLOCK *x);
  24
  25 static
  26 THREAD_FUNCTION thread_encoding_proc(void *p_data)
  27 {
  28 #if CONFIG_MULTITHREAD
  29     int ithread = ((ENCODETHREAD_DATA *)p_data)->ithread;
  30     VP8_COMP *cpi = (VP8_COMP *)(((ENCODETHREAD_DATA *)p_data)->ptr1);
  31     MB_ROW_COMP *mbri = (MB_ROW_COMP *)(((ENCODETHREAD_DATA *)p_data)->ptr2);
  32     ENTROPY_CONTEXT_PLANES mb_row_left_context;
  33
  34     const int nsync = cpi->mt_sync_range;
  35     //printf("Started thread %d\n", ithread);
  36
  37     while (1)
  38     {
  39         if (cpi->b_multi_threaded == 0)
  40             break;
  41
  42         //if(WaitForSingleObject(cpi->h_event_mbrencoding[ithread], INFINITE) == WAIT_OBJECT_0)
  43         if (sem_wait(&cpi->h_event_start_encoding[ithread]) == 0)
  44         {
  45             VP8_COMMON *cm = &cpi->common;
  46             int mb_row;
  47             MACROBLOCK *x = &mbri->mb;
  48             MACROBLOCKD *xd = &x->e_mbd;
  49             TOKENEXTRA *tp ;
  50
  51             int *segment_counts = mbri->segment_counts;
  52             int *totalrate = &mbri->totalrate;
  53
  54             if (cpi->b_multi_threaded == FALSE) // we're shutting down
  55                 break;
  56
  57             for (mb_row = ithread + 1; mb_row < cm->mb_rows; mb_row += (cpi->encoding_thread_count + 1))
  58             {
  59
  60                 int i;
  61                 int recon_yoffset, recon_uvoffset;
  62                 int mb_col;
  63                 int ref_fb_idx = cm->lst_fb_idx;
  64                 int dst_fb_idx = cm->new_fb_idx;
  65                 int recon_y_stride = cm->yv12_fb[ref_fb_idx].y_stride;
  66                 int recon_uv_stride = cm->yv12_fb[ref_fb_idx].uv_stride;
  67                 volatile int *last_row_current_mb_col;
  68                 INT64 activity_sum = 0;
  69
  70                 tp = cpi->tok + (mb_row * (cm->mb_cols * 16 * 24));
  71
  72                 last_row_current_mb_col = &cpi->mt_current_mb_col[mb_row - 1];
  73
  74                 // reset above block coeffs
  75                 xd->above_context = cm->above_context;
  76                 xd->left_context = &mb_row_left_context;
  77
  78                 vp8_zero(mb_row_left_context);
  79
  80                 xd->up_available = (mb_row != 0);
  81                 recon_yoffset = (mb_row * recon_y_stride * 16);
  82                 recon_uvoffset = (mb_row * recon_uv_stride * 8);
  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                     if ((mb_col & (nsync - 1)) == 0)
  94                     {
  95                         while (mb_col > (*last_row_current_mb_col - nsync) && *last_row_current_mb_col != cm->mb_cols - 1)
  96                         {
  97                             x86_pause_hint();
  98                             thread_sleep(0);
  99                         }
 100                     }
 101
 102                     // Distance of Mb to the various image edges.
 103                     // These specified to 8th pel as they are always compared to values that are in 1/8th pel units
 104                     xd->mb_to_left_edge = -((mb_col * 16) << 3);
 105                     xd->mb_to_right_edge = ((cm->mb_cols - 1 - mb_col) * 16) << 3;
 106                     xd->mb_to_top_edge = -((mb_row * 16) << 3);
 107                     xd->mb_to_bottom_edge = ((cm->mb_rows - 1 - mb_row) * 16) << 3;
 108
 109                     // Set up limit values for motion vectors used to prevent them extending outside the UMV borders
 110                     x->mv_col_min = -((mb_col * 16) + (VP8BORDERINPIXELS - 16));
 111                     x->mv_col_max = ((cm->mb_cols - 1 - mb_col) * 16) + (VP8BORDERINPIXELS - 16);
 112                     x->mv_row_min = -((mb_row * 16) + (VP8BORDERINPIXELS - 16));
 113                     x->mv_row_max = ((cm->mb_rows - 1 - mb_row) * 16) + (VP8BORDERINPIXELS - 16);
 114
 115                     xd->dst.y_buffer = cm->yv12_fb[dst_fb_idx].y_buffer + recon_yoffset;
 116                     xd->dst.u_buffer = cm->yv12_fb[dst_fb_idx].u_buffer + recon_uvoffset;
 117                     xd->dst.v_buffer = cm->yv12_fb[dst_fb_idx].v_buffer + recon_uvoffset;
 118                     xd->left_available = (mb_col != 0);
 119
 120                     x->rddiv = cpi->RDDIV;
 121                     x->rdmult = cpi->RDMULT;
 122
 123                     if (cpi->oxcf.tuning == VP8_TUNE_SSIM)
 124                         activity_sum += vp8_activity_masking(cpi, x);
 125
 126                     // Is segmentation enabled
 127                     // MB level adjutment to quantizer
 128                     if (xd->segmentation_enabled)
 129                     {
 130                         // Code to set segment id in xd->mbmi.segment_id for current MB (with range checking)
 131                         if (cpi->segmentation_map[seg_map_index + mb_col] <= 3)
 132                             xd->mode_info_context->mbmi.segment_id = cpi->segmentation_map[seg_map_index + mb_col];
 133                         else
 134                             xd->mode_info_context->mbmi.segment_id = 0;
 135
 136                         vp8cx_mb_init_quantizer(cpi, x);
 137                     }
 138                     else
 139                         xd->mode_info_context->mbmi.segment_id = 0; // Set to Segment 0 by default
 140
 141                     x->active_ptr = cpi->active_map + seg_map_index + mb_col;
 142
 143                     if (cm->frame_type == KEY_FRAME)
 144                     {
 145                         *totalrate += vp8cx_encode_intra_macro_block(cpi, x, &tp);
 146 #ifdef MODE_STATS
 147                         y_modes[xd->mbmi.mode] ++;
 148 #endif
 149                     }
 150                     else
 151                     {
 152                         *totalrate += vp8cx_encode_inter_macroblock(cpi, x, &tp, recon_yoffset, recon_uvoffset);
 153
 154 #ifdef MODE_STATS
 155                         inter_y_modes[xd->mbmi.mode] ++;
 156
 157                         if (xd->mbmi.mode == SPLITMV)
 158                         {
 159                             int b;
 160
 161                             for (b = 0; b < xd->mbmi.partition_count; b++)
 162                             {
 163                                 inter_b_modes[x->partition->bmi[b].mode] ++;
 164                             }
 165                         }
 166
 167 #endif
 168
 169                         // Count of last ref frame 0,0 useage
 170                         if ((xd->mode_info_context->mbmi.mode == ZEROMV) && (xd->mode_info_context->mbmi.ref_frame == LAST_FRAME))
 171                             cpi->inter_zz_count++;
 172
 173                         // Special case code for cyclic refresh
 174                         // If cyclic update enabled then copy xd->mbmi.segment_id; (which may have been updated based on mode
 175                         // during vp8cx_encode_inter_macroblock()) back into the global sgmentation map
 176                         if (cpi->cyclic_refresh_mode_enabled && xd->segmentation_enabled)
 177                         {
 178                             const MB_MODE_INFO * mbmi = &xd->mode_info_context->mbmi;
 179                             cpi->segmentation_map[seg_map_index + mb_col] = mbmi->segment_id;
 180
 181                             // If the block has been refreshed mark it as clean (the magnitude of the -ve influences how long it will be before we consider another refresh):
 182                             // Else if it was coded (last frame 0,0) and has not already been refreshed then mark it as a candidate for cleanup next time (marked 0)
 183                             // else mark it as dirty (1).
 184                             if (mbmi->segment_id)
 185                                 cpi->cyclic_refresh_map[seg_map_index + mb_col] = -1;
 186                             else if ((mbmi->mode == ZEROMV) && (mbmi->ref_frame == LAST_FRAME))
 187                             {
 188                                 if (cpi->cyclic_refresh_map[seg_map_index + mb_col] == 1)
 189                                     cpi->cyclic_refresh_map[seg_map_index + mb_col] = 0;
 190                             }
 191                             else
 192                                 cpi->cyclic_refresh_map[seg_map_index + mb_col] = 1;
 193
 194                         }
 195                     }
 196                     cpi->tplist[mb_row].stop = tp;
 197
 198                     x->gf_active_ptr++; // Increment pointer into gf useage flags structure for next mb
 199
 200                     for (i = 0; i < 16; i++)
 201                         vpx_memcpy(&xd->mode_info_context->bmi[i], &xd->block[i].bmi, sizeof(xd->block[i].bmi));
 202
 203                     // adjust to the next column of macroblocks
 204                     x->src.y_buffer += 16;
 205                     x->src.u_buffer += 8;
 206                     x->src.v_buffer += 8;
 207
 208                     recon_yoffset += 16;
 209                     recon_uvoffset += 8;
 210
 211                     // Keep track of segment useage
 212                     segment_counts[xd->mode_info_context->mbmi.segment_id]++;
 213
 214                     // skip to next mb
 215                     xd->mode_info_context++;
 216                     x->partition_info++;
 217                     xd->above_context++;
 218
 219                     cpi->mt_current_mb_col[mb_row] = mb_col;
 220                 }
 221
 222                 //extend the recon for intra prediction
 223                 vp8_extend_mb_row(
 224                     &cm->yv12_fb[dst_fb_idx],
 225                     xd->dst.y_buffer + 16,
 226                     xd->dst.u_buffer + 8,
 227                     xd->dst.v_buffer + 8);
 228
 229                 // this is to account for the border
 230                 xd->mode_info_context++;
 231                 x->partition_info++;
 232                 x->activity_sum += activity_sum;
 233
 234                 x->src.y_buffer += 16 * x->src.y_stride * (cpi->encoding_thread_count + 1) - 16 * cm->mb_cols;
 235                 x->src.u_buffer += 8 * x->src.uv_stride * (cpi->encoding_thread_count + 1) - 8 * cm->mb_cols;
 236                 x->src.v_buffer += 8 * x->src.uv_stride * (cpi->encoding_thread_count + 1) - 8 * cm->mb_cols;
 237
 238                 xd->mode_info_context += xd->mode_info_stride * cpi->encoding_thread_count;
 239                 x->partition_info += xd->mode_info_stride * cpi->encoding_thread_count;
 240
 241                 if (mb_row == cm->mb_rows - 1)
 242                 {
 243                     //SetEvent(cpi->h_event_main);
 244                     sem_post(&cpi->h_event_end_encoding); /* signal frame encoding end */
 245                 }
 246             }
 247         }
 248     }
 249
 250 #else
 251     (void) p_data;
 252 #endif
 253
 254     //printf("exit thread %d\n", ithread);
 255     return 0;
 256 }
 257
 258 static void setup_mbby_copy(MACROBLOCK *mbdst, MACROBLOCK *mbsrc)
 259 {
 260
 261     MACROBLOCK *x = mbsrc;
 262     MACROBLOCK *z = mbdst;
 263     int i;
 264
 265     z->ss               = x->ss;
 266     z->ss_count          = x->ss_count;
 267     z->searches_per_step  = x->searches_per_step;
 268     z->errorperbit      = x->errorperbit;
 269
 270     z->sadperbit16      = x->sadperbit16;
 271     z->sadperbit4       = x->sadperbit4;
 272     z->errthresh        = x->errthresh;
 273
 274     /*
 275     z->mv_col_min    = x->mv_col_min;
 276     z->mv_col_max    = x->mv_col_max;
 277     z->mv_row_min    = x->mv_row_min;
 278     z->mv_row_max    = x->mv_row_max;
 279     z->vector_range = x->vector_range ;
 280     */
 281
 282     z->vp8_short_fdct4x4     = x->vp8_short_fdct4x4;
 283     z->vp8_short_fdct8x4     = x->vp8_short_fdct8x4;
 284     z->short_walsh4x4    = x->short_walsh4x4;
 285     z->quantize_b        = x->quantize_b;
 286     z->optimize          = x->optimize;
 287
 288     /*
 289     z->mvc              = x->mvc;
 290     z->src.y_buffer      = x->src.y_buffer;
 291     z->src.u_buffer      = x->src.u_buffer;
 292     z->src.v_buffer      = x->src.v_buffer;
 293     */
 294
 295
 296     vpx_memcpy(z->mvcosts,          x->mvcosts,         sizeof(x->mvcosts));
 297     z->mvcost[0] = &z->mvcosts[0][mv_max+1];
 298     z->mvcost[1] = &z->mvcosts[1][mv_max+1];
 299     z->mvsadcost[0] = &z->mvsadcosts[0][mv_max+1];
 300     z->mvsadcost[1] = &z->mvsadcosts[1][mv_max+1];
 301
 302
 303     vpx_memcpy(z->token_costs,       x->token_costs,      sizeof(x->token_costs));
 304     vpx_memcpy(z->inter_bmode_costs,  x->inter_bmode_costs, sizeof(x->inter_bmode_costs));
 305     //memcpy(z->mvcosts,            x->mvcosts,         sizeof(x->mvcosts));
 306     //memcpy(z->mvcost,         x->mvcost,          sizeof(x->mvcost));
 307     vpx_memcpy(z->mbmode_cost,       x->mbmode_cost,      sizeof(x->mbmode_cost));
 308     vpx_memcpy(z->intra_uv_mode_cost,  x->intra_uv_mode_cost, sizeof(x->intra_uv_mode_cost));
 309     vpx_memcpy(z->bmode_costs,       x->bmode_costs,      sizeof(x->bmode_costs));
 310
 311     for (i = 0; i < 25; i++)
 312     {
 313         z->block[i].quant           = x->block[i].quant;
 314         z->block[i].quant_fast      = x->block[i].quant_fast;
 315         z->block[i].quant_shift     = x->block[i].quant_shift;
 316         z->block[i].zbin            = x->block[i].zbin;
 317         z->block[i].zrun_zbin_boost   = x->block[i].zrun_zbin_boost;
 318         z->block[i].round           = x->block[i].round;
 319         /*
 320         z->block[i].src             = x->block[i].src;
 321         */
 322         z->block[i].src_stride       = x->block[i].src_stride;
 323         z->block[i].force_empty      = x->block[i].force_empty;
 324
 325     }
 326
 327     {
 328         MACROBLOCKD *xd = &x->e_mbd;
 329         MACROBLOCKD *zd = &z->e_mbd;
 330
 331         /*
 332         zd->mode_info_context = xd->mode_info_context;
 333         zd->mode_info        = xd->mode_info;
 334
 335         zd->mode_info_stride  = xd->mode_info_stride;
 336         zd->frame_type       = xd->frame_type;
 337         zd->up_available     = xd->up_available   ;
 338         zd->left_available   = xd->left_available;
 339         zd->left_context     = xd->left_context;
 340         zd->last_frame_dc     = xd->last_frame_dc;
 341         zd->last_frame_dccons = xd->last_frame_dccons;
 342         zd->gold_frame_dc     = xd->gold_frame_dc;
 343         zd->gold_frame_dccons = xd->gold_frame_dccons;
 344         zd->mb_to_left_edge    = xd->mb_to_left_edge;
 345         zd->mb_to_right_edge   = xd->mb_to_right_edge;
 346         zd->mb_to_top_edge     = xd->mb_to_top_edge   ;
 347         zd->mb_to_bottom_edge  = xd->mb_to_bottom_edge;
 348         zd->gf_active_ptr     = xd->gf_active_ptr;
 349         zd->frames_since_golden       = xd->frames_since_golden;
 350         zd->frames_till_alt_ref_frame   = xd->frames_till_alt_ref_frame;
 351         */
 352         zd->subpixel_predict         = xd->subpixel_predict;
 353         zd->subpixel_predict8x4      = xd->subpixel_predict8x4;
 354         zd->subpixel_predict8x8      = xd->subpixel_predict8x8;
 355         zd->subpixel_predict16x16    = xd->subpixel_predict16x16;
 356         zd->segmentation_enabled     = xd->segmentation_enabled;
 357         zd->mb_segement_abs_delta      = xd->mb_segement_abs_delta;
 358         vpx_memcpy(zd->segment_feature_data, xd->segment_feature_data, sizeof(xd->segment_feature_data));
 359
 360         for (i = 0; i < 25; i++)
 361         {
 362             zd->block[i].dequant = xd->block[i].dequant;
 363         }
 364     }
 365 }
 366
 367 void vp8cx_init_mbrthread_data(VP8_COMP *cpi,
 368                                MACROBLOCK *x,
 369                                MB_ROW_COMP *mbr_ei,
 370                                int mb_row,
 371                                int count
 372                               )
 373 {
 374
 375     VP8_COMMON *const cm = & cpi->common;
 376     MACROBLOCKD *const xd = & x->e_mbd;
 377     int i;
 378     (void) mb_row;
 379
 380     for (i = 0; i < count; i++)
 381     {
 382         MACROBLOCK *mb = & mbr_ei[i].mb;
 383         MACROBLOCKD *mbd = &mb->e_mbd;
 384
 385         mbd->subpixel_predict        = xd->subpixel_predict;
 386         mbd->subpixel_predict8x4     = xd->subpixel_predict8x4;
 387         mbd->subpixel_predict8x8     = xd->subpixel_predict8x8;
 388         mbd->subpixel_predict16x16   = xd->subpixel_predict16x16;
 389 #if CONFIG_RUNTIME_CPU_DETECT
 390         mbd->rtcd                   = xd->rtcd;
 391 #endif
 392         mb->gf_active_ptr            = x->gf_active_ptr;
 393
 394         mb->vector_range             = 32;
 395
 396         vpx_memset(mbr_ei[i].segment_counts, 0, sizeof(mbr_ei[i].segment_counts));
 397         mbr_ei[i].totalrate = 0;
 398
 399         mb->partition_info = x->pi + x->e_mbd.mode_info_stride * (i + 1);
 400
 401         mbd->mode_info_context = cm->mi   + x->e_mbd.mode_info_stride * (i + 1);
 402         mbd->mode_info_stride  = cm->mode_info_stride;
 403
 404         mbd->frame_type = cm->frame_type;
 405
 406         mbd->frames_since_golden = cm->frames_since_golden;
 407         mbd->frames_till_alt_ref_frame = cm->frames_till_alt_ref_frame;
 408
 409         mb->src = * cpi->Source;
 410         mbd->pre = cm->yv12_fb[cm->lst_fb_idx];
 411         mbd->dst = cm->yv12_fb[cm->new_fb_idx];
 412
 413         mb->src.y_buffer += 16 * x->src.y_stride * (i + 1);
 414         mb->src.u_buffer +=  8 * x->src.uv_stride * (i + 1);
 415         mb->src.v_buffer +=  8 * x->src.uv_stride * (i + 1);
 416
 417         vp8_build_block_offsets(mb);
 418
 419         vp8_setup_block_dptrs(mbd);
 420
 421         vp8_setup_block_ptrs(mb);
 422
 423         mb->activity_sum = 0;
 424
 425         mbd->left_context = &cm->left_context;
 426         mb->mvc = cm->fc.mvc;
 427
 428         setup_mbby_copy(&mbr_ei[i].mb, x);
 429
 430     }
 431 }
 432
 433 void vp8cx_create_encoder_threads(VP8_COMP *cpi)
 434 {
 435     cpi->b_multi_threaded = 0;
 436
 437     cpi->processor_core_count = 32; //vp8_get_proc_core_count();
 438
 439     CHECK_MEM_ERROR(cpi->tplist, vpx_malloc(sizeof(TOKENLIST) * cpi->common.mb_rows));
 440
 441 #if CONFIG_MULTITHREAD
 442
 443     if (cpi->processor_core_count > 1 && cpi->oxcf.multi_threaded > 1)
 444     {
 445         int ithread;
 446
 447         if (cpi->oxcf.multi_threaded > cpi->processor_core_count)
 448             cpi->encoding_thread_count = cpi->processor_core_count - 1;
 449         else
 450             cpi->encoding_thread_count = cpi->oxcf.multi_threaded - 1;
 451
 452         CHECK_MEM_ERROR(cpi->h_encoding_thread, vpx_malloc(sizeof(pthread_t) * cpi->encoding_thread_count));
 453         CHECK_MEM_ERROR(cpi->h_event_start_encoding, vpx_malloc(sizeof(sem_t) * cpi->encoding_thread_count));
 454         CHECK_MEM_ERROR(cpi->mb_row_ei, vpx_memalign(32, sizeof(MB_ROW_COMP) * cpi->encoding_thread_count));
 455         vpx_memset(cpi->mb_row_ei, 0, sizeof(MB_ROW_COMP) * cpi->encoding_thread_count);
 456         CHECK_MEM_ERROR(cpi->en_thread_data, vpx_malloc(sizeof(ENCODETHREAD_DATA) * cpi->encoding_thread_count));
 457         CHECK_MEM_ERROR(cpi->mt_current_mb_col, vpx_malloc(sizeof(*cpi->mt_current_mb_col) * cpi->common.mb_rows));
 458
 459         //cpi->h_event_main = CreateEvent(NULL, FALSE, FALSE, NULL);
 460         sem_init(&cpi->h_event_end_encoding, 0, 0);
 461
 462         cpi->b_multi_threaded = 1;
 463
 464         //printf("[VP8:] multi_threaded encoding is enabled with %d threads\n\n", (cpi->encoding_thread_count +1));
 465
 466         for (ithread = 0; ithread < cpi->encoding_thread_count; ithread++)
 467         {
 468             ENCODETHREAD_DATA * ethd = &cpi->en_thread_data[ithread];
 469
 470             //cpi->h_event_mbrencoding[ithread] = CreateEvent(NULL, FALSE, FALSE, NULL);
 471             sem_init(&cpi->h_event_start_encoding[ithread], 0, 0);
 472             ethd->ithread = ithread;
 473             ethd->ptr1 = (void *)cpi;
 474             ethd->ptr2 = (void *)&cpi->mb_row_ei[ithread];
 475
 476             //printf(" call begin thread %d \n", ithread);
 477
 478             //cpi->h_encoding_thread[ithread] =   (HANDLE)_beginthreadex(
 479             //  NULL,           // security
 480             //  0,              // stksize
 481             //  thread_encoding_proc,
 482             //  (&cpi->en_thread_data[ithread]),          // Thread data
 483             //  0,
 484             //  NULL);
 485
 486             pthread_create(&cpi->h_encoding_thread[ithread], 0, thread_encoding_proc, ethd);
 487         }
 488
 489     }
 490
 491 #endif
 492 }
 493
 494 void vp8cx_remove_encoder_threads(VP8_COMP *cpi)
 495 {
 496 #if CONFIG_MULTITHREAD
 497
 498     if (cpi->b_multi_threaded)
 499     {
 500         //shutdown other threads
 501         cpi->b_multi_threaded = 0;
 502         {
 503             int i;
 504
 505             for (i = 0; i < cpi->encoding_thread_count; i++)
 506             {
 507                 //SetEvent(cpi->h_event_mbrencoding[i]);
 508                 sem_post(&cpi->h_event_start_encoding[i]);
 509                 pthread_join(cpi->h_encoding_thread[i], 0);
 510
 511                 sem_destroy(&cpi->h_event_start_encoding[i]);
 512             }
 513         }
 514
 515         sem_destroy(&cpi->h_event_end_encoding);
 516
 517         //free thread related resources
 518         vpx_free(cpi->h_event_start_encoding);
 519         vpx_free(cpi->h_encoding_thread);
 520         vpx_free(cpi->mb_row_ei);
 521         vpx_free(cpi->en_thread_data);
 522         vpx_free(cpi->mt_current_mb_col);
 523     }
 524
 525 #endif
 526     vpx_free(cpi->tplist);
 527 }