threading.c 28.78 KiB
/*
 *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */
#include "vpx_config.h"
#include "vpx_rtcd.h"
#if !defined(WIN32) && CONFIG_OS_SUPPORT == 1
# include <unistd.h>
#endif
#include "onyxd_int.h"
#include "vpx_mem/vpx_mem.h"
#include "vp8/common/threading.h"
#include "vp8/common/loopfilter.h"
#include "vp8/common/extend.h"
#include "vpx_ports/vpx_timer.h"
#include "detokenize.h"
#include "vp8/common/reconinter.h"
#include "reconintra_mt.h"
#if CONFIG_ERROR_CONCEALMENT
#include "error_concealment.h"
#endif
extern void mb_init_dequantizer(VP8D_COMP *pbi, MACROBLOCKD *xd);
static void setup_decoding_thread_data(VP8D_COMP *pbi, MACROBLOCKD *xd, MB_ROW_DEC *mbrd, int count)
    VP8_COMMON *const pc = & pbi->common;
    int i;
    for (i = 0; i < count; i++)
        MACROBLOCKD *mbd = &mbrd[i].mbd;
        mbd->subpixel_predict        = xd->subpixel_predict;
        mbd->subpixel_predict8x4     = xd->subpixel_predict8x4;
        mbd->subpixel_predict8x8     = xd->subpixel_predict8x8;
        mbd->subpixel_predict16x16   = xd->subpixel_predict16x16;
        mbd->mode_info_context = pc->mi   + pc->mode_info_stride * (i + 1);
        mbd->mode_info_stride  = pc->mode_info_stride;
        mbd->frame_type = pc->frame_type;
        mbd->pre = pc->yv12_fb[pc->lst_fb_idx];
        mbd->dst = pc->yv12_fb[pc->new_fb_idx];
        vp8_setup_block_dptrs(mbd);
        vp8_build_block_doffsets(mbd);
        mbd->segmentation_enabled    = xd->segmentation_enabled;
        mbd->mb_segement_abs_delta     = xd->mb_segement_abs_delta;
        vpx_memcpy(mbd->segment_feature_data, xd->segment_feature_data, sizeof(xd->segment_feature_data));
        /*signed char ref_lf_deltas[MAX_REF_LF_DELTAS];*/
        vpx_memcpy(mbd->ref_lf_deltas, xd->ref_lf_deltas, sizeof(xd->ref_lf_deltas));
        /*signed char mode_lf_deltas[MAX_MODE_LF_DELTAS];*/
        vpx_memcpy(mbd->mode_lf_deltas, xd->mode_lf_deltas, sizeof(xd->mode_lf_deltas));
        /*unsigned char mode_ref_lf_delta_enabled;
        unsigned char mode_ref_lf_delta_update;*/
        mbd->mode_ref_lf_delta_enabled    = xd->mode_ref_lf_delta_enabled;
        mbd->mode_ref_lf_delta_update    = xd->mode_ref_lf_delta_update;
        mbd->current_bc = &pbi->bc2;
        vpx_memcpy(mbd->dequant_y1_dc, xd->dequant_y1_dc, sizeof(xd->dequant_y1_dc));
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vpx_memcpy(mbd->dequant_y1, xd->dequant_y1, sizeof(xd->dequant_y1)); vpx_memcpy(mbd->dequant_y2, xd->dequant_y2, sizeof(xd->dequant_y2)); vpx_memcpy(mbd->dequant_uv, xd->dequant_uv, sizeof(xd->dequant_uv)); mbd->fullpixel_mask = 0xffffffff; if(pc->full_pixel) mbd->fullpixel_mask = 0xfffffff8; } for (i=0; i< pc->mb_rows; i++) pbi->mt_current_mb_col[i]=-1; } static void decode_macroblock(VP8D_COMP *pbi, MACROBLOCKD *xd, int mb_row, int mb_col) { int eobtotal = 0; int throw_residual = 0; int i; if (xd->mode_info_context->mbmi.mb_skip_coeff) { vp8_reset_mb_tokens_context(xd); } else if (!vp8dx_bool_error(xd->current_bc)) { eobtotal = vp8_decode_mb_tokens(pbi, xd); } eobtotal |= (xd->mode_info_context->mbmi.mode == B_PRED || xd->mode_info_context->mbmi.mode == SPLITMV); if (!eobtotal && !vp8dx_bool_error(xd->current_bc)) { /* Special case: Force the loopfilter to skip when eobtotal and * mb_skip_coeff are zero. * */ xd->mode_info_context->mbmi.mb_skip_coeff = 1; /*mt_skip_recon_mb(pbi, xd, mb_row, mb_col);*/ if (xd->mode_info_context->mbmi.ref_frame == INTRA_FRAME) { vp8mt_build_intra_predictors_mbuv_s(pbi, xd, mb_row, mb_col); vp8mt_build_intra_predictors_mby_s(pbi, xd, mb_row, mb_col); } else { vp8_build_inter16x16_predictors_mb(xd, xd->dst.y_buffer, xd->dst.u_buffer, xd->dst.v_buffer, xd->dst.y_stride, xd->dst.uv_stride); } return; } if (xd->segmentation_enabled) mb_init_dequantizer(pbi, xd); /* do prediction */ if (xd->mode_info_context->mbmi.ref_frame == INTRA_FRAME) { vp8mt_build_intra_predictors_mbuv_s(pbi, xd, mb_row, mb_col); if (xd->mode_info_context->mbmi.mode != B_PRED) { vp8mt_build_intra_predictors_mby_s(pbi, xd, mb_row, mb_col); } else { vp8mt_intra_prediction_down_copy(pbi, xd, mb_row, mb_col); } } else
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{ vp8_build_inter_predictors_mb(xd); } /* When we have independent partitions we can apply residual even * though other partitions within the frame are corrupt. */ throw_residual = (!pbi->independent_partitions && pbi->frame_corrupt_residual); throw_residual = (throw_residual || vp8dx_bool_error(xd->current_bc)); #if CONFIG_ERROR_CONCEALMENT if (pbi->ec_active && (mb_row * pbi->common.mb_cols + mb_col >= pbi->mvs_corrupt_from_mb || throw_residual)) { /* MB with corrupt residuals or corrupt mode/motion vectors. * Better to use the predictor as reconstruction. */ pbi->frame_corrupt_residual = 1; vpx_memset(xd->qcoeff, 0, sizeof(xd->qcoeff)); vp8_conceal_corrupt_mb(xd); return; } #endif /* dequantization and idct */ if (xd->mode_info_context->mbmi.mode == B_PRED) { short *DQC = xd->dequant_y1; int dst_stride = xd->dst.y_stride; unsigned char *base_dst = xd->dst.y_buffer; for (i = 0; i < 16; i++) { BLOCKD *b = &xd->block[i]; int b_mode = xd->mode_info_context->bmi[i].as_mode; vp8mt_predict_intra4x4(pbi, xd, b_mode, base_dst + b->offset, dst_stride, mb_row, mb_col, i); if (xd->eobs[i] ) { if (xd->eobs[i] > 1) { vp8_dequant_idct_add (b->qcoeff, DQC, base_dst + b->offset, dst_stride); } else { vp8_dc_only_idct_add (b->qcoeff[0] * DQC[0], base_dst + b->offset, dst_stride, base_dst + b->offset, dst_stride); ((int *)b->qcoeff)[0] = 0; } } } } else { short *DQC = xd->dequant_y1; if (xd->mode_info_context->mbmi.mode != SPLITMV) { BLOCKD *b = &xd->block[24]; /* do 2nd order transform on the dc block */ if (xd->eobs[24] > 1)
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{ vp8_dequantize_b(b, xd->dequant_y2); vp8_short_inv_walsh4x4(&b->dqcoeff[0], xd->qcoeff); ((int *)b->qcoeff)[0] = 0; ((int *)b->qcoeff)[1] = 0; ((int *)b->qcoeff)[2] = 0; ((int *)b->qcoeff)[3] = 0; ((int *)b->qcoeff)[4] = 0; ((int *)b->qcoeff)[5] = 0; ((int *)b->qcoeff)[6] = 0; ((int *)b->qcoeff)[7] = 0; } else { b->dqcoeff[0] = b->qcoeff[0] * xd->dequant_y2[0]; vp8_short_inv_walsh4x4_1(&b->dqcoeff[0], xd->qcoeff); ((int *)b->qcoeff)[0] = 0; } /* override the dc dequant constant */ DQC = xd->dequant_y1_dc; } vp8_dequant_idct_add_y_block (xd->qcoeff, DQC, xd->dst.y_buffer, xd->dst.y_stride, xd->eobs); } vp8_dequant_idct_add_uv_block (xd->qcoeff+16*16, xd->dequant_uv, xd->dst.u_buffer, xd->dst.v_buffer, xd->dst.uv_stride, xd->eobs+16); } typedef void (*init_current_bc_fn_t)(VP8D_COMP *pbi, MACROBLOCKD *xd, int start_mb_row, int mb_row, int num_part); static void init_current_bc(VP8D_COMP *pbi, MACROBLOCKD *xd, int start_mb_row, int mb_row, int num_part) { (void) start_mb_row; xd->current_bc = &pbi->mbc[mb_row%num_part]; } static void init_current_bc_threads(VP8D_COMP *pbi, MACROBLOCKD *xd, int start_mb_row, int mb_row, int num_part) { (void) xd; pbi->mb_row_di[start_mb_row - 1].mb_row = mb_row; pbi->mb_row_di[start_mb_row - 1].mbd.current_bc = &pbi->mbc[mb_row%num_part]; } static void decode_mb_rows(VP8D_COMP *pbi, MACROBLOCKD *xd, int start_mb_row, init_current_bc_fn_t init_current_bc_fn) { volatile int *last_row_current_mb_col = NULL; int mb_row; VP8_COMMON *pc = &pbi->common; int nsync = pbi->sync_range; int num_part = 1 << pbi->common.multi_token_partition; for (mb_row = start_mb_row; mb_row < pc->mb_rows; mb_row += (pbi->decoding_thread_count + 1)) { int i;
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int recon_yoffset, recon_uvoffset; int mb_col; int ref_fb_idx = pc->lst_fb_idx; int dst_fb_idx = pc->new_fb_idx; int recon_y_stride = pc->yv12_fb[ref_fb_idx].y_stride; int recon_uv_stride = pc->yv12_fb[ref_fb_idx].uv_stride; int filter_level; loop_filter_info_n *lfi_n = &pc->lf_info; init_current_bc_fn(pbi, xd, start_mb_row, mb_row, num_part); if (mb_row > 0) last_row_current_mb_col = &pbi->mt_current_mb_col[mb_row -1]; recon_yoffset = mb_row * recon_y_stride * 16; recon_uvoffset = mb_row * recon_uv_stride * 8; /* reset above block coeffs */ xd->above_context = pc->above_context; vpx_memset(xd->left_context, 0, sizeof(ENTROPY_CONTEXT_PLANES)); xd->up_available = (mb_row != 0); xd->mb_to_top_edge = -((mb_row * 16)) << 3; xd->mb_to_bottom_edge = ((pc->mb_rows - 1 - mb_row) * 16) << 3; for (mb_col = 0; mb_col < pc->mb_cols; mb_col++) { if ( mb_row > 0 && (mb_col & (nsync-1)) == 0) { while (mb_col > (*last_row_current_mb_col - nsync) && *last_row_current_mb_col != pc->mb_cols - 1) { x86_pause_hint(); thread_sleep(0); } } /* Distance of MB to the various image edges. * These are specified to 8th pel as they are always * compared to values that are in 1/8th pel units. */ xd->mb_to_left_edge = -((mb_col * 16) << 3); xd->mb_to_right_edge = ((pc->mb_cols - 1 - mb_col) * 16) << 3; #if CONFIG_ERROR_CONCEALMENT { int corrupt_residual = (!pbi->independent_partitions && pbi->frame_corrupt_residual) || vp8dx_bool_error(xd->current_bc); if (pbi->ec_active && (xd->mode_info_context->mbmi.ref_frame == INTRA_FRAME) && corrupt_residual) { /* We have an intra block with corrupt * coefficients, better to conceal with an inter * block. * Interpolate MVs from neighboring MBs * * Note that for the first mb with corrupt * residual in a frame, we might not discover * that before decoding the residual. That * happens after this check, and therefore no * inter concealment will be done. */ vp8_interpolate_motion(xd, mb_row, mb_col, pc->mb_rows, pc->mb_cols, pc->mode_info_stride);
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} } #endif xd->dst.y_buffer = pc->yv12_fb[dst_fb_idx].y_buffer + recon_yoffset; xd->dst.u_buffer = pc->yv12_fb[dst_fb_idx].u_buffer + recon_uvoffset; xd->dst.v_buffer = pc->yv12_fb[dst_fb_idx].v_buffer + recon_uvoffset; xd->left_available = (mb_col != 0); /* Select the appropriate reference frame for this MB */ if (xd->mode_info_context->mbmi.ref_frame == LAST_FRAME) ref_fb_idx = pc->lst_fb_idx; else if (xd->mode_info_context->mbmi.ref_frame == GOLDEN_FRAME) ref_fb_idx = pc->gld_fb_idx; else ref_fb_idx = pc->alt_fb_idx; xd->pre.y_buffer = pc->yv12_fb[ref_fb_idx].y_buffer + recon_yoffset; xd->pre.u_buffer = pc->yv12_fb[ref_fb_idx].u_buffer + recon_uvoffset; xd->pre.v_buffer = pc->yv12_fb[ref_fb_idx].v_buffer + recon_uvoffset; if (xd->mode_info_context->mbmi.ref_frame != INTRA_FRAME) { /* propagate errors from reference frames */ xd->corrupted |= pc->yv12_fb[ref_fb_idx].corrupted; } decode_macroblock(pbi, xd, mb_row, mb_col); /* check if the boolean decoder has suffered an error */ xd->corrupted |= vp8dx_bool_error(xd->current_bc); if (pbi->common.filter_level) { int skip_lf = (xd->mode_info_context->mbmi.mode != B_PRED && xd->mode_info_context->mbmi.mode != SPLITMV && xd->mode_info_context->mbmi.mb_skip_coeff); const int mode_index = lfi_n->mode_lf_lut[xd->mode_info_context->mbmi.mode]; const int seg = xd->mode_info_context->mbmi.segment_id; const int ref_frame = xd->mode_info_context->mbmi.ref_frame; filter_level = lfi_n->lvl[seg][ref_frame][mode_index]; if( mb_row != pc->mb_rows-1 ) { /* Save decoded MB last row data for next-row decoding */ vpx_memcpy((pbi->mt_yabove_row[mb_row + 1] + 32 + mb_col*16), (xd->dst.y_buffer + 15 * recon_y_stride), 16); vpx_memcpy((pbi->mt_uabove_row[mb_row + 1] + 16 + mb_col*8), (xd->dst.u_buffer + 7 * recon_uv_stride), 8); vpx_memcpy((pbi->mt_vabove_row[mb_row + 1] + 16 + mb_col*8), (xd->dst.v_buffer + 7 * recon_uv_stride), 8); } /* save left_col for next MB decoding */ if(mb_col != pc->mb_cols-1) { MODE_INFO *next = xd->mode_info_context +1; if (next->mbmi.ref_frame == INTRA_FRAME) { for (i = 0; i < 16; i++) pbi->mt_yleft_col[mb_row][i] = xd->dst.y_buffer [i* recon_y_stride + 15]; for (i = 0; i < 8; i++) { pbi->mt_uleft_col[mb_row][i] = xd->dst.u_buffer [i* recon_uv_stride + 7]; pbi->mt_vleft_col[mb_row][i] = xd->dst.v_buffer [i* recon_uv_stride + 7]; } }
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} /* loopfilter on this macroblock. */ if (filter_level) { if(pc->filter_type == NORMAL_LOOPFILTER) { loop_filter_info lfi; FRAME_TYPE frame_type = pc->frame_type; const int hev_index = lfi_n->hev_thr_lut[frame_type][filter_level]; lfi.mblim = lfi_n->mblim[filter_level]; lfi.blim = lfi_n->blim[filter_level]; lfi.lim = lfi_n->lim[filter_level]; lfi.hev_thr = lfi_n->hev_thr[hev_index]; if (mb_col > 0) vp8_loop_filter_mbv (xd->dst.y_buffer, xd->dst.u_buffer, xd->dst.v_buffer, recon_y_stride, recon_uv_stride, &lfi); if (!skip_lf) vp8_loop_filter_bv (xd->dst.y_buffer, xd->dst.u_buffer, xd->dst.v_buffer, recon_y_stride, recon_uv_stride, &lfi); /* don't apply across umv border */ if (mb_row > 0) vp8_loop_filter_mbh (xd->dst.y_buffer, xd->dst.u_buffer, xd->dst.v_buffer, recon_y_stride, recon_uv_stride, &lfi); if (!skip_lf) vp8_loop_filter_bh (xd->dst.y_buffer, xd->dst.u_buffer, xd->dst.v_buffer, recon_y_stride, recon_uv_stride, &lfi); } else { if (mb_col > 0) vp8_loop_filter_simple_mbv (xd->dst.y_buffer, recon_y_stride, lfi_n->mblim[filter_level]); if (!skip_lf) vp8_loop_filter_simple_bv (xd->dst.y_buffer, recon_y_stride, lfi_n->blim[filter_level]); /* don't apply across umv border */ if (mb_row > 0) vp8_loop_filter_simple_mbh (xd->dst.y_buffer, recon_y_stride, lfi_n->mblim[filter_level]); if (!skip_lf) vp8_loop_filter_simple_bh (xd->dst.y_buffer, recon_y_stride, lfi_n->blim[filter_level]); } } } recon_yoffset += 16; recon_uvoffset += 8; ++xd->mode_info_context; /* next mb */ xd->above_context++; /*pbi->mb_row_di[ithread].current_mb_col = mb_col;*/ pbi->mt_current_mb_col[mb_row] = mb_col; } /* adjust to the next row of mbs */ if (pbi->common.filter_level) { if(mb_row != pc->mb_rows-1)
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{ int lasty = pc->yv12_fb[ref_fb_idx].y_width + VP8BORDERINPIXELS; int lastuv = (pc->yv12_fb[ref_fb_idx].y_width>>1) + (VP8BORDERINPIXELS>>1); for (i = 0; i < 4; i++) { pbi->mt_yabove_row[mb_row +1][lasty + i] = pbi->mt_yabove_row[mb_row +1][lasty -1]; pbi->mt_uabove_row[mb_row +1][lastuv + i] = pbi->mt_uabove_row[mb_row +1][lastuv -1]; pbi->mt_vabove_row[mb_row +1][lastuv + i] = pbi->mt_vabove_row[mb_row +1][lastuv -1]; } } } else vp8_extend_mb_row(&pc->yv12_fb[dst_fb_idx], xd->dst.y_buffer + 16, xd->dst.u_buffer + 8, xd->dst.v_buffer + 8); ++xd->mode_info_context; /* skip prediction column */ /* since we have multithread */ xd->mode_info_context += xd->mode_info_stride * pbi->decoding_thread_count; } } static THREAD_FUNCTION thread_decoding_proc(void *p_data) { int ithread = ((DECODETHREAD_DATA *)p_data)->ithread; VP8D_COMP *pbi = (VP8D_COMP *)(((DECODETHREAD_DATA *)p_data)->ptr1); MB_ROW_DEC *mbrd = (MB_ROW_DEC *)(((DECODETHREAD_DATA *)p_data)->ptr2); ENTROPY_CONTEXT_PLANES mb_row_left_context; while (1) { if (pbi->b_multithreaded_rd == 0) break; /*if(WaitForSingleObject(pbi->h_event_start_decoding[ithread], INFINITE) == WAIT_OBJECT_0)*/ if (sem_wait(&pbi->h_event_start_decoding[ithread]) == 0) { if (pbi->b_multithreaded_rd == 0) break; else { MACROBLOCKD *xd = &mbrd->mbd; xd->left_context = &mb_row_left_context; decode_mb_rows(pbi, xd, ithread+1, init_current_bc_threads); } } /* add this to each frame */ if ((mbrd->mb_row == pbi->common.mb_rows-1) || ((mbrd->mb_row == pbi->common.mb_rows-2) && (pbi->common.mb_rows % (pbi->decoding_thread_count+1))==1)) { /*SetEvent(pbi->h_event_end_decoding);*/ sem_post(&pbi->h_event_end_decoding); } } return 0 ; } void vp8_decoder_create_threads(VP8D_COMP *pbi) { int core_count = 0; int ithread; pbi->b_multithreaded_rd = 0; pbi->allocated_decoding_thread_count = 0;
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/* limit decoding threads to the max number of token partitions */ core_count = (pbi->max_threads > 8) ? 8 : pbi->max_threads; /* limit decoding threads to the available cores */ if (core_count > pbi->common.processor_core_count) core_count = pbi->common.processor_core_count; if (core_count > 1) { pbi->b_multithreaded_rd = 1; pbi->decoding_thread_count = core_count - 1; CHECK_MEM_ERROR(pbi->h_decoding_thread, vpx_malloc(sizeof(pthread_t) * pbi->decoding_thread_count)); CHECK_MEM_ERROR(pbi->h_event_start_decoding, vpx_malloc(sizeof(sem_t) * pbi->decoding_thread_count)); CHECK_MEM_ERROR(pbi->mb_row_di, vpx_memalign(32, sizeof(MB_ROW_DEC) * pbi->decoding_thread_count)); vpx_memset(pbi->mb_row_di, 0, sizeof(MB_ROW_DEC) * pbi->decoding_thread_count); CHECK_MEM_ERROR(pbi->de_thread_data, vpx_malloc(sizeof(DECODETHREAD_DATA) * pbi->decoding_thread_count)); for (ithread = 0; ithread < pbi->decoding_thread_count; ithread++) { sem_init(&pbi->h_event_start_decoding[ithread], 0, 0); pbi->de_thread_data[ithread].ithread = ithread; pbi->de_thread_data[ithread].ptr1 = (void *)pbi; pbi->de_thread_data[ithread].ptr2 = (void *) &pbi->mb_row_di[ithread]; pthread_create(&pbi->h_decoding_thread[ithread], 0, thread_decoding_proc, (&pbi->de_thread_data[ithread])); } sem_init(&pbi->h_event_end_decoding, 0, 0); pbi->allocated_decoding_thread_count = pbi->decoding_thread_count; } } void vp8mt_de_alloc_temp_buffers(VP8D_COMP *pbi, int mb_rows) { int i; if (pbi->b_multithreaded_rd) { vpx_free(pbi->mt_current_mb_col); pbi->mt_current_mb_col = NULL ; /* Free above_row buffers. */ if (pbi->mt_yabove_row) { for (i=0; i< mb_rows; i++) { vpx_free(pbi->mt_yabove_row[i]); pbi->mt_yabove_row[i] = NULL ; } vpx_free(pbi->mt_yabove_row); pbi->mt_yabove_row = NULL ; } if (pbi->mt_uabove_row) { for (i=0; i< mb_rows; i++) { vpx_free(pbi->mt_uabove_row[i]); pbi->mt_uabove_row[i] = NULL ; } vpx_free(pbi->mt_uabove_row); pbi->mt_uabove_row = NULL ; } if (pbi->mt_vabove_row)
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{ for (i=0; i< mb_rows; i++) { vpx_free(pbi->mt_vabove_row[i]); pbi->mt_vabove_row[i] = NULL ; } vpx_free(pbi->mt_vabove_row); pbi->mt_vabove_row = NULL ; } /* Free left_col buffers. */ if (pbi->mt_yleft_col) { for (i=0; i< mb_rows; i++) { vpx_free(pbi->mt_yleft_col[i]); pbi->mt_yleft_col[i] = NULL ; } vpx_free(pbi->mt_yleft_col); pbi->mt_yleft_col = NULL ; } if (pbi->mt_uleft_col) { for (i=0; i< mb_rows; i++) { vpx_free(pbi->mt_uleft_col[i]); pbi->mt_uleft_col[i] = NULL ; } vpx_free(pbi->mt_uleft_col); pbi->mt_uleft_col = NULL ; } if (pbi->mt_vleft_col) { for (i=0; i< mb_rows; i++) { vpx_free(pbi->mt_vleft_col[i]); pbi->mt_vleft_col[i] = NULL ; } vpx_free(pbi->mt_vleft_col); pbi->mt_vleft_col = NULL ; } } } void vp8mt_alloc_temp_buffers(VP8D_COMP *pbi, int width, int prev_mb_rows) { VP8_COMMON *const pc = & pbi->common; int i; int uv_width; if (pbi->b_multithreaded_rd) { vp8mt_de_alloc_temp_buffers(pbi, prev_mb_rows); /* our internal buffers are always multiples of 16 */ if ((width & 0xf) != 0) width += 16 - (width & 0xf); if (width < 640) pbi->sync_range = 1; else if (width <= 1280) pbi->sync_range = 8; else if (width <= 2560) pbi->sync_range =16; else pbi->sync_range = 32; uv_width = width >>1; /* Allocate an int for each mb row. */ CHECK_MEM_ERROR(pbi->mt_current_mb_col, vpx_malloc(sizeof(int) * pc->mb_rows));
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/* Allocate memory for above_row buffers. */ CHECK_MEM_ERROR(pbi->mt_yabove_row, vpx_malloc(sizeof(unsigned char *) * pc->mb_rows)); for (i=0; i< pc->mb_rows; i++) CHECK_MEM_ERROR(pbi->mt_yabove_row[i], vpx_calloc(sizeof(unsigned char) * (width + (VP8BORDERINPIXELS<<1)), 1)); CHECK_MEM_ERROR(pbi->mt_uabove_row, vpx_malloc(sizeof(unsigned char *) * pc->mb_rows)); for (i=0; i< pc->mb_rows; i++) CHECK_MEM_ERROR(pbi->mt_uabove_row[i], vpx_calloc(sizeof(unsigned char) * (uv_width + VP8BORDERINPIXELS), 1)); CHECK_MEM_ERROR(pbi->mt_vabove_row, vpx_malloc(sizeof(unsigned char *) * pc->mb_rows)); for (i=0; i< pc->mb_rows; i++) CHECK_MEM_ERROR(pbi->mt_vabove_row[i], vpx_calloc(sizeof(unsigned char) * (uv_width + VP8BORDERINPIXELS), 1)); /* Allocate memory for left_col buffers. */ CHECK_MEM_ERROR(pbi->mt_yleft_col, vpx_malloc(sizeof(unsigned char *) * pc->mb_rows)); for (i=0; i< pc->mb_rows; i++) CHECK_MEM_ERROR(pbi->mt_yleft_col[i], vpx_calloc(sizeof(unsigned char) * 16, 1)); CHECK_MEM_ERROR(pbi->mt_uleft_col, vpx_malloc(sizeof(unsigned char *) * pc->mb_rows)); for (i=0; i< pc->mb_rows; i++) CHECK_MEM_ERROR(pbi->mt_uleft_col[i], vpx_calloc(sizeof(unsigned char) * 8, 1)); CHECK_MEM_ERROR(pbi->mt_vleft_col, vpx_malloc(sizeof(unsigned char *) * pc->mb_rows)); for (i=0; i< pc->mb_rows; i++) CHECK_MEM_ERROR(pbi->mt_vleft_col[i], vpx_calloc(sizeof(unsigned char) * 8, 1)); } } void vp8_decoder_remove_threads(VP8D_COMP *pbi) { /* shutdown MB Decoding thread; */ if (pbi->b_multithreaded_rd) { int i; pbi->b_multithreaded_rd = 0; /* allow all threads to exit */ for (i = 0; i < pbi->allocated_decoding_thread_count; i++) { sem_post(&pbi->h_event_start_decoding[i]); pthread_join(pbi->h_decoding_thread[i], NULL); } for (i = 0; i < pbi->allocated_decoding_thread_count; i++) { sem_destroy(&pbi->h_event_start_decoding[i]); } sem_destroy(&pbi->h_event_end_decoding); vpx_free(pbi->h_decoding_thread); pbi->h_decoding_thread = NULL; vpx_free(pbi->h_event_start_decoding); pbi->h_event_start_decoding = NULL; vpx_free(pbi->mb_row_di); pbi->mb_row_di = NULL ; vpx_free(pbi->de_thread_data); pbi->de_thread_data = NULL; } } void vp8mt_decode_mb_rows( VP8D_COMP *pbi, MACROBLOCKD *xd) { VP8_COMMON *pc = &pbi->common;
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int i; int filter_level = pc->filter_level; if (filter_level) { /* Set above_row buffer to 127 for decoding first MB row */ vpx_memset(pbi->mt_yabove_row[0] + VP8BORDERINPIXELS-1, 127, pc->yv12_fb[pc->lst_fb_idx].y_width + 5); vpx_memset(pbi->mt_uabove_row[0] + (VP8BORDERINPIXELS>>1)-1, 127, (pc->yv12_fb[pc->lst_fb_idx].y_width>>1) +5); vpx_memset(pbi->mt_vabove_row[0] + (VP8BORDERINPIXELS>>1)-1, 127, (pc->yv12_fb[pc->lst_fb_idx].y_width>>1) +5); for (i=1; i<pc->mb_rows; i++) { vpx_memset(pbi->mt_yabove_row[i] + VP8BORDERINPIXELS-1, (unsigned char)129, 1); vpx_memset(pbi->mt_uabove_row[i] + (VP8BORDERINPIXELS>>1)-1, (unsigned char)129, 1); vpx_memset(pbi->mt_vabove_row[i] + (VP8BORDERINPIXELS>>1)-1, (unsigned char)129, 1); } /* Set left_col to 129 initially */ for (i=0; i<pc->mb_rows; i++) { vpx_memset(pbi->mt_yleft_col[i], (unsigned char)129, 16); vpx_memset(pbi->mt_uleft_col[i], (unsigned char)129, 8); vpx_memset(pbi->mt_vleft_col[i], (unsigned char)129, 8); } /* Initialize the loop filter for this frame. */ vp8_loop_filter_frame_init(pc, &pbi->mb, filter_level); } setup_decoding_thread_data(pbi, xd, pbi->mb_row_di, pbi->decoding_thread_count); for (i = 0; i < pbi->decoding_thread_count; i++) sem_post(&pbi->h_event_start_decoding[i]); decode_mb_rows(pbi, xd, 0, init_current_bc); sem_wait(&pbi->h_event_end_decoding); /* add back for each frame */ }