media/libvpx/vp8/encoder/ethreading.c@ac0c01689b40
media/libvpx/vp8/encoder/ethreading.c
Thu, 15 Jan 2015 15:59:08 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 15 Jan 2015 15:59:08 +0100
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
- permissions
- -rw-r--r--
Implement a real Private Browsing Mode condition by changing the API/ABI;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
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 */
11 #include "onyx_int.h"
12 #include "vp8/common/threading.h"
13 #include "vp8/common/common.h"
14 #include "vp8/common/extend.h"
15 #include "bitstream.h"
16 #include "encodeframe.h"
18 #if CONFIG_MULTITHREAD
20 extern void vp8cx_mb_init_quantizer(VP8_COMP *cpi, MACROBLOCK *x, int ok_to_skip);
22 extern void vp8_loopfilter_frame(VP8_COMP *cpi, VP8_COMMON *cm);
24 static THREAD_FUNCTION thread_loopfilter(void *p_data)
25 {
26 VP8_COMP *cpi = (VP8_COMP *)(((LPFTHREAD_DATA *)p_data)->ptr1);
27 VP8_COMMON *cm = &cpi->common;
29 while (1)
30 {
31 if (cpi->b_multi_threaded == 0)
32 break;
34 if (sem_wait(&cpi->h_event_start_lpf) == 0)
35 {
36 if (cpi->b_multi_threaded == 0) /* we're shutting down */
37 break;
39 vp8_loopfilter_frame(cpi, cm);
41 sem_post(&cpi->h_event_end_lpf);
42 }
43 }
45 return 0;
46 }
48 static
49 THREAD_FUNCTION thread_encoding_proc(void *p_data)
50 {
51 int ithread = ((ENCODETHREAD_DATA *)p_data)->ithread;
52 VP8_COMP *cpi = (VP8_COMP *)(((ENCODETHREAD_DATA *)p_data)->ptr1);
53 MB_ROW_COMP *mbri = (MB_ROW_COMP *)(((ENCODETHREAD_DATA *)p_data)->ptr2);
54 ENTROPY_CONTEXT_PLANES mb_row_left_context;
56 while (1)
57 {
58 if (cpi->b_multi_threaded == 0)
59 break;
61 if (sem_wait(&cpi->h_event_start_encoding[ithread]) == 0)
62 {
63 const int nsync = cpi->mt_sync_range;
64 VP8_COMMON *cm = &cpi->common;
65 int mb_row;
66 MACROBLOCK *x = &mbri->mb;
67 MACROBLOCKD *xd = &x->e_mbd;
68 TOKENEXTRA *tp ;
69 #if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
70 TOKENEXTRA *tp_start = cpi->tok + (1 + ithread) * (16 * 24);
71 const int num_part = (1 << cm->multi_token_partition);
72 #endif
74 int *segment_counts = mbri->segment_counts;
75 int *totalrate = &mbri->totalrate;
77 if (cpi->b_multi_threaded == 0) /* we're shutting down */
78 break;
80 for (mb_row = ithread + 1; mb_row < cm->mb_rows; mb_row += (cpi->encoding_thread_count + 1))
81 {
83 int recon_yoffset, recon_uvoffset;
84 int mb_col;
85 int ref_fb_idx = cm->lst_fb_idx;
86 int dst_fb_idx = cm->new_fb_idx;
87 int recon_y_stride = cm->yv12_fb[ref_fb_idx].y_stride;
88 int recon_uv_stride = cm->yv12_fb[ref_fb_idx].uv_stride;
89 int map_index = (mb_row * cm->mb_cols);
90 volatile const int *last_row_current_mb_col;
91 volatile int *current_mb_col = &cpi->mt_current_mb_col[mb_row];
93 #if (CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING)
94 vp8_writer *w = &cpi->bc[1 + (mb_row % num_part)];
95 #else
96 tp = cpi->tok + (mb_row * (cm->mb_cols * 16 * 24));
97 cpi->tplist[mb_row].start = tp;
98 #endif
100 last_row_current_mb_col = &cpi->mt_current_mb_col[mb_row - 1];
102 /* reset above block coeffs */
103 xd->above_context = cm->above_context;
104 xd->left_context = &mb_row_left_context;
106 vp8_zero(mb_row_left_context);
108 xd->up_available = (mb_row != 0);
109 recon_yoffset = (mb_row * recon_y_stride * 16);
110 recon_uvoffset = (mb_row * recon_uv_stride * 8);
112 /* Set the mb activity pointer to the start of the row. */
113 x->mb_activity_ptr = &cpi->mb_activity_map[map_index];
115 /* for each macroblock col in image */
116 for (mb_col = 0; mb_col < cm->mb_cols; mb_col++)
117 {
118 *current_mb_col = mb_col - 1;
120 if ((mb_col & (nsync - 1)) == 0)
121 {
122 while (mb_col > (*last_row_current_mb_col - nsync))
123 {
124 x86_pause_hint();
125 thread_sleep(0);
126 }
127 }
129 #if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
130 tp = tp_start;
131 #endif
133 /* Distance of Mb to the various image edges.
134 * These specified to 8th pel as they are always compared
135 * to values that are in 1/8th pel units
136 */
137 xd->mb_to_left_edge = -((mb_col * 16) << 3);
138 xd->mb_to_right_edge = ((cm->mb_cols - 1 - mb_col) * 16) << 3;
139 xd->mb_to_top_edge = -((mb_row * 16) << 3);
140 xd->mb_to_bottom_edge = ((cm->mb_rows - 1 - mb_row) * 16) << 3;
142 /* Set up limit values for motion vectors used to prevent
143 * them extending outside the UMV borders
144 */
145 x->mv_col_min = -((mb_col * 16) + (VP8BORDERINPIXELS - 16));
146 x->mv_col_max = ((cm->mb_cols - 1 - mb_col) * 16) + (VP8BORDERINPIXELS - 16);
147 x->mv_row_min = -((mb_row * 16) + (VP8BORDERINPIXELS - 16));
148 x->mv_row_max = ((cm->mb_rows - 1 - mb_row) * 16) + (VP8BORDERINPIXELS - 16);
150 xd->dst.y_buffer = cm->yv12_fb[dst_fb_idx].y_buffer + recon_yoffset;
151 xd->dst.u_buffer = cm->yv12_fb[dst_fb_idx].u_buffer + recon_uvoffset;
152 xd->dst.v_buffer = cm->yv12_fb[dst_fb_idx].v_buffer + recon_uvoffset;
153 xd->left_available = (mb_col != 0);
155 x->rddiv = cpi->RDDIV;
156 x->rdmult = cpi->RDMULT;
158 /* Copy current mb to a buffer */
159 vp8_copy_mem16x16(x->src.y_buffer, x->src.y_stride, x->thismb, 16);
161 if (cpi->oxcf.tuning == VP8_TUNE_SSIM)
162 vp8_activity_masking(cpi, x);
164 /* Is segmentation enabled */
165 /* MB level adjustment to quantizer */
166 if (xd->segmentation_enabled)
167 {
168 /* Code to set segment id in xd->mbmi.segment_id for
169 * current MB (with range checking)
170 */
171 if (cpi->segmentation_map[map_index + mb_col] <= 3)
172 xd->mode_info_context->mbmi.segment_id = cpi->segmentation_map[map_index + mb_col];
173 else
174 xd->mode_info_context->mbmi.segment_id = 0;
176 vp8cx_mb_init_quantizer(cpi, x, 1);
177 }
178 else
179 /* Set to Segment 0 by default */
180 xd->mode_info_context->mbmi.segment_id = 0;
182 x->active_ptr = cpi->active_map + map_index + mb_col;
184 if (cm->frame_type == KEY_FRAME)
185 {
186 *totalrate += vp8cx_encode_intra_macroblock(cpi, x, &tp);
187 #ifdef MODE_STATS
188 y_modes[xd->mbmi.mode] ++;
189 #endif
190 }
191 else
192 {
193 *totalrate += vp8cx_encode_inter_macroblock(cpi, x, &tp, recon_yoffset, recon_uvoffset, mb_row, mb_col);
195 #ifdef MODE_STATS
196 inter_y_modes[xd->mbmi.mode] ++;
198 if (xd->mbmi.mode == SPLITMV)
199 {
200 int b;
202 for (b = 0; b < xd->mbmi.partition_count; b++)
203 {
204 inter_b_modes[x->partition->bmi[b].mode] ++;
205 }
206 }
208 #endif
210 /* Special case code for cyclic refresh
211 * If cyclic update enabled then copy
212 * xd->mbmi.segment_id; (which may have been updated
213 * based on mode during
214 * vp8cx_encode_inter_macroblock()) back into the
215 * global segmentation map
216 */
217 if ((cpi->current_layer == 0) &&
218 (cpi->cyclic_refresh_mode_enabled &&
219 xd->segmentation_enabled))
220 {
221 const MB_MODE_INFO * mbmi = &xd->mode_info_context->mbmi;
222 cpi->segmentation_map[map_index + mb_col] = mbmi->segment_id;
224 /* If the block has been refreshed mark it as clean
225 * (the magnitude of the -ve influences how long it
226 * will be before we consider another refresh):
227 * Else if it was coded (last frame 0,0) and has
228 * not already been refreshed then mark it as a
229 * candidate for cleanup next time (marked 0) else
230 * mark it as dirty (1).
231 */
232 if (mbmi->segment_id)
233 cpi->cyclic_refresh_map[map_index + mb_col] = -1;
234 else if ((mbmi->mode == ZEROMV) && (mbmi->ref_frame == LAST_FRAME))
235 {
236 if (cpi->cyclic_refresh_map[map_index + mb_col] == 1)
237 cpi->cyclic_refresh_map[map_index + mb_col] = 0;
238 }
239 else
240 cpi->cyclic_refresh_map[map_index + mb_col] = 1;
242 }
243 }
245 #if CONFIG_REALTIME_ONLY & CONFIG_ONTHEFLY_BITPACKING
246 /* pack tokens for this MB */
247 {
248 int tok_count = tp - tp_start;
249 pack_tokens(w, tp_start, tok_count);
250 }
251 #else
252 cpi->tplist[mb_row].stop = tp;
253 #endif
254 /* Increment pointer into gf usage flags structure. */
255 x->gf_active_ptr++;
257 /* Increment the activity mask pointers. */
258 x->mb_activity_ptr++;
260 /* adjust to the next column of macroblocks */
261 x->src.y_buffer += 16;
262 x->src.u_buffer += 8;
263 x->src.v_buffer += 8;
265 recon_yoffset += 16;
266 recon_uvoffset += 8;
268 /* Keep track of segment usage */
269 segment_counts[xd->mode_info_context->mbmi.segment_id]++;
271 /* skip to next mb */
272 xd->mode_info_context++;
273 x->partition_info++;
274 xd->above_context++;
275 }
277 vp8_extend_mb_row( &cm->yv12_fb[dst_fb_idx],
278 xd->dst.y_buffer + 16,
279 xd->dst.u_buffer + 8,
280 xd->dst.v_buffer + 8);
282 *current_mb_col = mb_col + nsync;
284 /* this is to account for the border */
285 xd->mode_info_context++;
286 x->partition_info++;
288 x->src.y_buffer += 16 * x->src.y_stride * (cpi->encoding_thread_count + 1) - 16 * cm->mb_cols;
289 x->src.u_buffer += 8 * x->src.uv_stride * (cpi->encoding_thread_count + 1) - 8 * cm->mb_cols;
290 x->src.v_buffer += 8 * x->src.uv_stride * (cpi->encoding_thread_count + 1) - 8 * cm->mb_cols;
292 xd->mode_info_context += xd->mode_info_stride * cpi->encoding_thread_count;
293 x->partition_info += xd->mode_info_stride * cpi->encoding_thread_count;
294 x->gf_active_ptr += cm->mb_cols * cpi->encoding_thread_count;
296 if (mb_row == cm->mb_rows - 1)
297 {
298 sem_post(&cpi->h_event_end_encoding); /* signal frame encoding end */
299 }
300 }
301 }
302 }
304 /* printf("exit thread %d\n", ithread); */
305 return 0;
306 }
308 static void setup_mbby_copy(MACROBLOCK *mbdst, MACROBLOCK *mbsrc)
309 {
311 MACROBLOCK *x = mbsrc;
312 MACROBLOCK *z = mbdst;
313 int i;
315 z->ss = x->ss;
316 z->ss_count = x->ss_count;
317 z->searches_per_step = x->searches_per_step;
318 z->errorperbit = x->errorperbit;
320 z->sadperbit16 = x->sadperbit16;
321 z->sadperbit4 = x->sadperbit4;
323 /*
324 z->mv_col_min = x->mv_col_min;
325 z->mv_col_max = x->mv_col_max;
326 z->mv_row_min = x->mv_row_min;
327 z->mv_row_max = x->mv_row_max;
328 */
330 z->short_fdct4x4 = x->short_fdct4x4;
331 z->short_fdct8x4 = x->short_fdct8x4;
332 z->short_walsh4x4 = x->short_walsh4x4;
333 z->quantize_b = x->quantize_b;
334 z->quantize_b_pair = x->quantize_b_pair;
335 z->optimize = x->optimize;
337 /*
338 z->mvc = x->mvc;
339 z->src.y_buffer = x->src.y_buffer;
340 z->src.u_buffer = x->src.u_buffer;
341 z->src.v_buffer = x->src.v_buffer;
342 */
344 z->mvcost[0] = x->mvcost[0];
345 z->mvcost[1] = x->mvcost[1];
346 z->mvsadcost[0] = x->mvsadcost[0];
347 z->mvsadcost[1] = x->mvsadcost[1];
349 z->token_costs = x->token_costs;
350 z->inter_bmode_costs = x->inter_bmode_costs;
351 z->mbmode_cost = x->mbmode_cost;
352 z->intra_uv_mode_cost = x->intra_uv_mode_cost;
353 z->bmode_costs = x->bmode_costs;
355 for (i = 0; i < 25; i++)
356 {
357 z->block[i].quant = x->block[i].quant;
358 z->block[i].quant_fast = x->block[i].quant_fast;
359 z->block[i].quant_shift = x->block[i].quant_shift;
360 z->block[i].zbin = x->block[i].zbin;
361 z->block[i].zrun_zbin_boost = x->block[i].zrun_zbin_boost;
362 z->block[i].round = x->block[i].round;
363 z->block[i].src_stride = x->block[i].src_stride;
364 }
366 z->q_index = x->q_index;
367 z->act_zbin_adj = x->act_zbin_adj;
368 z->last_act_zbin_adj = x->last_act_zbin_adj;
370 {
371 MACROBLOCKD *xd = &x->e_mbd;
372 MACROBLOCKD *zd = &z->e_mbd;
374 /*
375 zd->mode_info_context = xd->mode_info_context;
376 zd->mode_info = xd->mode_info;
378 zd->mode_info_stride = xd->mode_info_stride;
379 zd->frame_type = xd->frame_type;
380 zd->up_available = xd->up_available ;
381 zd->left_available = xd->left_available;
382 zd->left_context = xd->left_context;
383 zd->last_frame_dc = xd->last_frame_dc;
384 zd->last_frame_dccons = xd->last_frame_dccons;
385 zd->gold_frame_dc = xd->gold_frame_dc;
386 zd->gold_frame_dccons = xd->gold_frame_dccons;
387 zd->mb_to_left_edge = xd->mb_to_left_edge;
388 zd->mb_to_right_edge = xd->mb_to_right_edge;
389 zd->mb_to_top_edge = xd->mb_to_top_edge ;
390 zd->mb_to_bottom_edge = xd->mb_to_bottom_edge;
391 zd->gf_active_ptr = xd->gf_active_ptr;
392 zd->frames_since_golden = xd->frames_since_golden;
393 zd->frames_till_alt_ref_frame = xd->frames_till_alt_ref_frame;
394 */
395 zd->subpixel_predict = xd->subpixel_predict;
396 zd->subpixel_predict8x4 = xd->subpixel_predict8x4;
397 zd->subpixel_predict8x8 = xd->subpixel_predict8x8;
398 zd->subpixel_predict16x16 = xd->subpixel_predict16x16;
399 zd->segmentation_enabled = xd->segmentation_enabled;
400 zd->mb_segement_abs_delta = xd->mb_segement_abs_delta;
401 vpx_memcpy(zd->segment_feature_data, xd->segment_feature_data,
402 sizeof(xd->segment_feature_data));
404 vpx_memcpy(zd->dequant_y1_dc, xd->dequant_y1_dc,
405 sizeof(xd->dequant_y1_dc));
406 vpx_memcpy(zd->dequant_y1, xd->dequant_y1, sizeof(xd->dequant_y1));
407 vpx_memcpy(zd->dequant_y2, xd->dequant_y2, sizeof(xd->dequant_y2));
408 vpx_memcpy(zd->dequant_uv, xd->dequant_uv, sizeof(xd->dequant_uv));
410 #if 1
411 /*TODO: Remove dequant from BLOCKD. This is a temporary solution until
412 * the quantizer code uses a passed in pointer to the dequant constants.
413 * This will also require modifications to the x86 and neon assembly.
414 * */
415 for (i = 0; i < 16; i++)
416 zd->block[i].dequant = zd->dequant_y1;
417 for (i = 16; i < 24; i++)
418 zd->block[i].dequant = zd->dequant_uv;
419 zd->block[24].dequant = zd->dequant_y2;
420 #endif
423 vpx_memcpy(z->rd_threshes, x->rd_threshes, sizeof(x->rd_threshes));
424 vpx_memcpy(z->rd_thresh_mult, x->rd_thresh_mult,
425 sizeof(x->rd_thresh_mult));
427 z->zbin_over_quant = x->zbin_over_quant;
428 z->zbin_mode_boost_enabled = x->zbin_mode_boost_enabled;
429 z->zbin_mode_boost = x->zbin_mode_boost;
431 vpx_memset(z->error_bins, 0, sizeof(z->error_bins));
432 }
433 }
435 void vp8cx_init_mbrthread_data(VP8_COMP *cpi,
436 MACROBLOCK *x,
437 MB_ROW_COMP *mbr_ei,
438 int count
439 )
440 {
442 VP8_COMMON *const cm = & cpi->common;
443 MACROBLOCKD *const xd = & x->e_mbd;
444 int i;
446 for (i = 0; i < count; i++)
447 {
448 MACROBLOCK *mb = & mbr_ei[i].mb;
449 MACROBLOCKD *mbd = &mb->e_mbd;
451 mbd->subpixel_predict = xd->subpixel_predict;
452 mbd->subpixel_predict8x4 = xd->subpixel_predict8x4;
453 mbd->subpixel_predict8x8 = xd->subpixel_predict8x8;
454 mbd->subpixel_predict16x16 = xd->subpixel_predict16x16;
455 mb->gf_active_ptr = x->gf_active_ptr;
457 vpx_memset(mbr_ei[i].segment_counts, 0, sizeof(mbr_ei[i].segment_counts));
458 mbr_ei[i].totalrate = 0;
460 mb->partition_info = x->pi + x->e_mbd.mode_info_stride * (i + 1);
462 mbd->mode_info_context = cm->mi + x->e_mbd.mode_info_stride * (i + 1);
463 mbd->mode_info_stride = cm->mode_info_stride;
465 mbd->frame_type = cm->frame_type;
467 mb->src = * cpi->Source;
468 mbd->pre = cm->yv12_fb[cm->lst_fb_idx];
469 mbd->dst = cm->yv12_fb[cm->new_fb_idx];
471 mb->src.y_buffer += 16 * x->src.y_stride * (i + 1);
472 mb->src.u_buffer += 8 * x->src.uv_stride * (i + 1);
473 mb->src.v_buffer += 8 * x->src.uv_stride * (i + 1);
475 vp8_build_block_offsets(mb);
477 mbd->left_context = &cm->left_context;
478 mb->mvc = cm->fc.mvc;
480 setup_mbby_copy(&mbr_ei[i].mb, x);
482 mbd->fullpixel_mask = 0xffffffff;
483 if(cm->full_pixel)
484 mbd->fullpixel_mask = 0xfffffff8;
486 vp8_zero(mb->coef_counts);
487 vp8_zero(x->ymode_count);
488 mb->skip_true_count = 0;
489 vp8_zero(mb->MVcount);
490 mb->prediction_error = 0;
491 mb->intra_error = 0;
492 vp8_zero(mb->count_mb_ref_frame_usage);
493 mb->mbs_tested_so_far = 0;
494 }
495 }
497 int vp8cx_create_encoder_threads(VP8_COMP *cpi)
498 {
499 const VP8_COMMON * cm = &cpi->common;
501 cpi->b_multi_threaded = 0;
502 cpi->encoding_thread_count = 0;
503 cpi->b_lpf_running = 0;
505 if (cm->processor_core_count > 1 && cpi->oxcf.multi_threaded > 1)
506 {
507 int ithread;
508 int th_count = cpi->oxcf.multi_threaded - 1;
509 int rc = 0;
511 /* don't allocate more threads than cores available */
512 if (cpi->oxcf.multi_threaded > cm->processor_core_count)
513 th_count = cm->processor_core_count - 1;
515 /* we have th_count + 1 (main) threads processing one row each */
516 /* no point to have more threads than the sync range allows */
517 if(th_count > ((cm->mb_cols / cpi->mt_sync_range) - 1))
518 {
519 th_count = (cm->mb_cols / cpi->mt_sync_range) - 1;
520 }
522 if(th_count == 0)
523 return 0;
525 CHECK_MEM_ERROR(cpi->h_encoding_thread,
526 vpx_malloc(sizeof(pthread_t) * th_count));
527 CHECK_MEM_ERROR(cpi->h_event_start_encoding,
528 vpx_malloc(sizeof(sem_t) * th_count));
529 CHECK_MEM_ERROR(cpi->mb_row_ei,
530 vpx_memalign(32, sizeof(MB_ROW_COMP) * th_count));
531 vpx_memset(cpi->mb_row_ei, 0, sizeof(MB_ROW_COMP) * th_count);
532 CHECK_MEM_ERROR(cpi->en_thread_data,
533 vpx_malloc(sizeof(ENCODETHREAD_DATA) * th_count));
535 sem_init(&cpi->h_event_end_encoding, 0, 0);
537 cpi->b_multi_threaded = 1;
538 cpi->encoding_thread_count = th_count;
540 /*
541 printf("[VP8:] multi_threaded encoding is enabled with %d threads\n\n",
542 (cpi->encoding_thread_count +1));
543 */
545 for (ithread = 0; ithread < th_count; ithread++)
546 {
547 ENCODETHREAD_DATA *ethd = &cpi->en_thread_data[ithread];
549 /* Setup block ptrs and offsets */
550 vp8_setup_block_ptrs(&cpi->mb_row_ei[ithread].mb);
551 vp8_setup_block_dptrs(&cpi->mb_row_ei[ithread].mb.e_mbd);
553 sem_init(&cpi->h_event_start_encoding[ithread], 0, 0);
555 ethd->ithread = ithread;
556 ethd->ptr1 = (void *)cpi;
557 ethd->ptr2 = (void *)&cpi->mb_row_ei[ithread];
559 rc = pthread_create(&cpi->h_encoding_thread[ithread], 0,
560 thread_encoding_proc, ethd);
561 if(rc)
562 break;
563 }
565 if(rc)
566 {
567 /* shutdown other threads */
568 cpi->b_multi_threaded = 0;
569 for(--ithread; ithread >= 0; ithread--)
570 {
571 pthread_join(cpi->h_encoding_thread[ithread], 0);
572 sem_destroy(&cpi->h_event_start_encoding[ithread]);
573 }
574 sem_destroy(&cpi->h_event_end_encoding);
576 /* free thread related resources */
577 vpx_free(cpi->h_event_start_encoding);
578 vpx_free(cpi->h_encoding_thread);
579 vpx_free(cpi->mb_row_ei);
580 vpx_free(cpi->en_thread_data);
582 return -1;
583 }
586 {
587 LPFTHREAD_DATA * lpfthd = &cpi->lpf_thread_data;
589 sem_init(&cpi->h_event_start_lpf, 0, 0);
590 sem_init(&cpi->h_event_end_lpf, 0, 0);
592 lpfthd->ptr1 = (void *)cpi;
593 rc = pthread_create(&cpi->h_filter_thread, 0, thread_loopfilter,
594 lpfthd);
596 if(rc)
597 {
598 /* shutdown other threads */
599 cpi->b_multi_threaded = 0;
600 for(--ithread; ithread >= 0; ithread--)
601 {
602 sem_post(&cpi->h_event_start_encoding[ithread]);
603 pthread_join(cpi->h_encoding_thread[ithread], 0);
604 sem_destroy(&cpi->h_event_start_encoding[ithread]);
605 }
606 sem_destroy(&cpi->h_event_end_encoding);
607 sem_destroy(&cpi->h_event_end_lpf);
608 sem_destroy(&cpi->h_event_start_lpf);
610 /* free thread related resources */
611 vpx_free(cpi->h_event_start_encoding);
612 vpx_free(cpi->h_encoding_thread);
613 vpx_free(cpi->mb_row_ei);
614 vpx_free(cpi->en_thread_data);
616 return -2;
617 }
618 }
619 }
620 return 0;
621 }
623 void vp8cx_remove_encoder_threads(VP8_COMP *cpi)
624 {
625 if (cpi->b_multi_threaded)
626 {
627 /* shutdown other threads */
628 cpi->b_multi_threaded = 0;
629 {
630 int i;
632 for (i = 0; i < cpi->encoding_thread_count; i++)
633 {
634 sem_post(&cpi->h_event_start_encoding[i]);
635 pthread_join(cpi->h_encoding_thread[i], 0);
637 sem_destroy(&cpi->h_event_start_encoding[i]);
638 }
640 sem_post(&cpi->h_event_start_lpf);
641 pthread_join(cpi->h_filter_thread, 0);
642 }
644 sem_destroy(&cpi->h_event_end_encoding);
645 sem_destroy(&cpi->h_event_end_lpf);
646 sem_destroy(&cpi->h_event_start_lpf);
648 /* free thread related resources */
649 vpx_free(cpi->h_event_start_encoding);
650 vpx_free(cpi->h_encoding_thread);
651 vpx_free(cpi->mb_row_ei);
652 vpx_free(cpi->en_thread_data);
653 }
654 }
655 #endif
