ref: afde303d00109d89460083b1391b91a42b321850
dir: /vp9/encoder/vp9_pickmode.c/
/* * Copyright (c) 2014 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 <assert.h> #include <limits.h> #include <math.h> #include <stdio.h> #include "./vp9_rtcd.h" #include "./vpx_dsp_rtcd.h" #include "vpx/vpx_codec.h" #include "vpx_dsp/vpx_dsp_common.h" #include "vpx_mem/vpx_mem.h" #include "vpx_ports/compiler_attributes.h" #include "vp9/common/vp9_blockd.h" #include "vp9/common/vp9_common.h" #include "vp9/common/vp9_mvref_common.h" #include "vp9/common/vp9_pred_common.h" #include "vp9/common/vp9_reconinter.h" #include "vp9/common/vp9_reconintra.h" #include "vp9/common/vp9_scan.h" #include "vp9/encoder/vp9_cost.h" #include "vp9/encoder/vp9_encoder.h" #include "vp9/encoder/vp9_pickmode.h" #include "vp9/encoder/vp9_ratectrl.h" #include "vp9/encoder/vp9_rd.h" typedef struct { uint8_t *data; int stride; int in_use; } PRED_BUFFER; typedef struct { PRED_BUFFER *best_pred; PREDICTION_MODE best_mode; TX_SIZE best_tx_size; TX_SIZE best_intra_tx_size; MV_REFERENCE_FRAME best_ref_frame; MV_REFERENCE_FRAME best_second_ref_frame; uint8_t best_mode_skip_txfm; INTERP_FILTER best_pred_filter; } BEST_PICKMODE; static const int pos_shift_16x16[4][4] = { { 9, 10, 13, 14 }, { 11, 12, 15, 16 }, { 17, 18, 21, 22 }, { 19, 20, 23, 24 } }; static int mv_refs_rt(VP9_COMP *cpi, const VP9_COMMON *cm, const MACROBLOCK *x, const MACROBLOCKD *xd, const TileInfo *const tile, MODE_INFO *mi, MV_REFERENCE_FRAME ref_frame, int_mv *mv_ref_list, int_mv *base_mv, int mi_row, int mi_col, int use_base_mv) { const int *ref_sign_bias = cm->ref_frame_sign_bias; int i, refmv_count = 0; const POSITION *const mv_ref_search = mv_ref_blocks[mi->sb_type]; int different_ref_found = 0; int context_counter = 0; int const_motion = 0; // Blank the reference vector list memset(mv_ref_list, 0, sizeof(*mv_ref_list) * MAX_MV_REF_CANDIDATES); // The nearest 2 blocks are treated differently // if the size < 8x8 we get the mv from the bmi substructure, // and we also need to keep a mode count. for (i = 0; i < 2; ++i) { const POSITION *const mv_ref = &mv_ref_search[i]; if (is_inside(tile, mi_col, mi_row, cm->mi_rows, mv_ref)) { const MODE_INFO *const candidate_mi = xd->mi[mv_ref->col + mv_ref->row * xd->mi_stride]; // Keep counts for entropy encoding. context_counter += mode_2_counter[candidate_mi->mode]; different_ref_found = 1; if (candidate_mi->ref_frame[0] == ref_frame) ADD_MV_REF_LIST(get_sub_block_mv(candidate_mi, 0, mv_ref->col, -1), refmv_count, mv_ref_list, Done); } } const_motion = 1; // Check the rest of the neighbors in much the same way // as before except we don't need to keep track of sub blocks or // mode counts. for (; i < MVREF_NEIGHBOURS && !refmv_count; ++i) { const POSITION *const mv_ref = &mv_ref_search[i]; if (is_inside(tile, mi_col, mi_row, cm->mi_rows, mv_ref)) { const MODE_INFO *const candidate_mi = xd->mi[mv_ref->col + mv_ref->row * xd->mi_stride]; different_ref_found = 1; if (candidate_mi->ref_frame[0] == ref_frame) ADD_MV_REF_LIST(candidate_mi->mv[0], refmv_count, mv_ref_list, Done); } } // Since we couldn't find 2 mvs from the same reference frame // go back through the neighbors and find motion vectors from // different reference frames. if (different_ref_found && !refmv_count) { for (i = 0; i < MVREF_NEIGHBOURS; ++i) { const POSITION *mv_ref = &mv_ref_search[i]; if (is_inside(tile, mi_col, mi_row, cm->mi_rows, mv_ref)) { const MODE_INFO *const candidate_mi = xd->mi[mv_ref->col + mv_ref->row * xd->mi_stride]; // If the candidate is INTRA we don't want to consider its mv. IF_DIFF_REF_FRAME_ADD_MV(candidate_mi, ref_frame, ref_sign_bias, refmv_count, mv_ref_list, Done); } } } if (use_base_mv && !cpi->svc.layer_context[cpi->svc.temporal_layer_id].is_key_frame && ref_frame == LAST_FRAME) { // Get base layer mv. MV_REF *candidate = &cm->prev_frame ->mvs[(mi_col >> 1) + (mi_row >> 1) * (cm->mi_cols >> 1)]; if (candidate->mv[0].as_int != INVALID_MV) { base_mv->as_mv.row = (candidate->mv[0].as_mv.row * 2); base_mv->as_mv.col = (candidate->mv[0].as_mv.col * 2); clamp_mv_ref(&base_mv->as_mv, xd); } else { base_mv->as_int = INVALID_MV; } } Done: x->mbmi_ext->mode_context[ref_frame] = counter_to_context[context_counter]; // Clamp vectors for (i = 0; i < MAX_MV_REF_CANDIDATES; ++i) clamp_mv_ref(&mv_ref_list[i].as_mv, xd); return const_motion; } static int combined_motion_search(VP9_COMP *cpi, MACROBLOCK *x, BLOCK_SIZE bsize, int mi_row, int mi_col, int_mv *tmp_mv, int *rate_mv, int64_t best_rd_sofar, int use_base_mv) { MACROBLOCKD *xd = &x->e_mbd; MODE_INFO *mi = xd->mi[0]; struct buf_2d backup_yv12[MAX_MB_PLANE] = { { 0, 0 } }; const int step_param = cpi->sf.mv.fullpel_search_step_param; const int sadpb = x->sadperbit16; MV mvp_full; const int ref = mi->ref_frame[0]; const MV ref_mv = x->mbmi_ext->ref_mvs[ref][0].as_mv; MV center_mv; uint32_t dis; int rate_mode; const MvLimits tmp_mv_limits = x->mv_limits; int rv = 0; int cost_list[5]; int search_subpel = 1; const YV12_BUFFER_CONFIG *scaled_ref_frame = vp9_get_scaled_ref_frame(cpi, ref); if (scaled_ref_frame) { int i; // Swap out the reference frame for a version that's been scaled to // match the resolution of the current frame, allowing the existing // motion search code to be used without additional modifications. for (i = 0; i < MAX_MB_PLANE; i++) backup_yv12[i] = xd->plane[i].pre[0]; vp9_setup_pre_planes(xd, 0, scaled_ref_frame, mi_row, mi_col, NULL); } vp9_set_mv_search_range(&x->mv_limits, &ref_mv); // Limit motion vector for large lightning change. if (cpi->oxcf.speed > 5 && x->lowvar_highsumdiff) { x->mv_limits.col_min = VPXMAX(x->mv_limits.col_min, -10); x->mv_limits.row_min = VPXMAX(x->mv_limits.row_min, -10); x->mv_limits.col_max = VPXMIN(x->mv_limits.col_max, 10); x->mv_limits.row_max = VPXMIN(x->mv_limits.row_max, 10); } assert(x->mv_best_ref_index[ref] <= 2); if (x->mv_best_ref_index[ref] < 2) mvp_full = x->mbmi_ext->ref_mvs[ref][x->mv_best_ref_index[ref]].as_mv; else mvp_full = x->pred_mv[ref]; mvp_full.col >>= 3; mvp_full.row >>= 3; if (!use_base_mv) center_mv = ref_mv; else center_mv = tmp_mv->as_mv; if (x->sb_use_mv_part) { tmp_mv->as_mv.row = x->sb_mvrow_part >> 3; tmp_mv->as_mv.col = x->sb_mvcol_part >> 3; } else { vp9_full_pixel_search( cpi, x, bsize, &mvp_full, step_param, cpi->sf.mv.search_method, sadpb, cond_cost_list(cpi, cost_list), ¢er_mv, &tmp_mv->as_mv, INT_MAX, 0); } x->mv_limits = tmp_mv_limits; // calculate the bit cost on motion vector mvp_full.row = tmp_mv->as_mv.row * 8; mvp_full.col = tmp_mv->as_mv.col * 8; *rate_mv = vp9_mv_bit_cost(&mvp_full, &ref_mv, x->nmvjointcost, x->mvcost, MV_COST_WEIGHT); rate_mode = cpi->inter_mode_cost[x->mbmi_ext->mode_context[ref]][INTER_OFFSET(NEWMV)]; rv = !(RDCOST(x->rdmult, x->rddiv, (*rate_mv + rate_mode), 0) > best_rd_sofar); // For SVC on non-reference frame, avoid subpel for (0, 0) motion. if (cpi->use_svc && cpi->svc.non_reference_frame) { if (mvp_full.row == 0 && mvp_full.col == 0) search_subpel = 0; } if (rv && search_subpel) { SUBPEL_FORCE_STOP subpel_force_stop = cpi->sf.mv.subpel_force_stop; if (use_base_mv && cpi->sf.base_mv_aggressive) subpel_force_stop = HALF_PEL; if (cpi->sf.mv.enable_adaptive_subpel_force_stop) { const int mv_thresh = cpi->sf.mv.adapt_subpel_force_stop.mv_thresh; if (abs(tmp_mv->as_mv.row) >= mv_thresh || abs(tmp_mv->as_mv.col) >= mv_thresh) subpel_force_stop = cpi->sf.mv.adapt_subpel_force_stop.force_stop_above; else subpel_force_stop = cpi->sf.mv.adapt_subpel_force_stop.force_stop_below; } cpi->find_fractional_mv_step( x, &tmp_mv->as_mv, &ref_mv, cpi->common.allow_high_precision_mv, x->errorperbit, &cpi->fn_ptr[bsize], subpel_force_stop, cpi->sf.mv.subpel_search_level, cond_cost_list(cpi, cost_list), x->nmvjointcost, x->mvcost, &dis, &x->pred_sse[ref], NULL, 0, 0, cpi->sf.use_accurate_subpel_search); *rate_mv = vp9_mv_bit_cost(&tmp_mv->as_mv, &ref_mv, x->nmvjointcost, x->mvcost, MV_COST_WEIGHT); } if (scaled_ref_frame) { int i; for (i = 0; i < MAX_MB_PLANE; i++) xd->plane[i].pre[0] = backup_yv12[i]; } return rv; } static void block_variance(const uint8_t *src, int src_stride, const uint8_t *ref, int ref_stride, int w, int h, unsigned int *sse, int *sum, int block_size, #if CONFIG_VP9_HIGHBITDEPTH int use_highbitdepth, vpx_bit_depth_t bd, #endif uint32_t *sse8x8, int *sum8x8, uint32_t *var8x8) { int i, j, k = 0; *sse = 0; *sum = 0; for (i = 0; i < h; i += block_size) { for (j = 0; j < w; j += block_size) { #if CONFIG_VP9_HIGHBITDEPTH if (use_highbitdepth) { switch (bd) { case VPX_BITS_8: vpx_highbd_8_get8x8var(src + src_stride * i + j, src_stride, ref + ref_stride * i + j, ref_stride, &sse8x8[k], &sum8x8[k]); break; case VPX_BITS_10: vpx_highbd_10_get8x8var(src + src_stride * i + j, src_stride, ref + ref_stride * i + j, ref_stride, &sse8x8[k], &sum8x8[k]); break; case VPX_BITS_12: vpx_highbd_12_get8x8var(src + src_stride * i + j, src_stride, ref + ref_stride * i + j, ref_stride, &sse8x8[k], &sum8x8[k]); break; } } else { vpx_get8x8var(src + src_stride * i + j, src_stride, ref + ref_stride * i + j, ref_stride, &sse8x8[k], &sum8x8[k]); } #else vpx_get8x8var(src + src_stride * i + j, src_stride, ref + ref_stride * i + j, ref_stride, &sse8x8[k], &sum8x8[k]); #endif *sse += sse8x8[k]; *sum += sum8x8[k]; var8x8[k] = sse8x8[k] - (uint32_t)(((int64_t)sum8x8[k] * sum8x8[k]) >> 6); k++; } } } static void calculate_variance(int bw, int bh, TX_SIZE tx_size, unsigned int *sse_i, int *sum_i, unsigned int *var_o, unsigned int *sse_o, int *sum_o) { const BLOCK_SIZE unit_size = txsize_to_bsize[tx_size]; const int nw = 1 << (bw - b_width_log2_lookup[unit_size]); const int nh = 1 << (bh - b_height_log2_lookup[unit_size]); int i, j, k = 0; for (i = 0; i < nh; i += 2) { for (j = 0; j < nw; j += 2) { sse_o[k] = sse_i[i * nw + j] + sse_i[i * nw + j + 1] + sse_i[(i + 1) * nw + j] + sse_i[(i + 1) * nw + j + 1]; sum_o[k] = sum_i[i * nw + j] + sum_i[i * nw + j + 1] + sum_i[(i + 1) * nw + j] + sum_i[(i + 1) * nw + j + 1]; var_o[k] = sse_o[k] - (uint32_t)(((int64_t)sum_o[k] * sum_o[k]) >> (b_width_log2_lookup[unit_size] + b_height_log2_lookup[unit_size] + 6)); k++; } } } // Adjust the ac_thr according to speed, width, height and normalized sum static int ac_thr_factor(const int speed, const int width, const int height, const int norm_sum) { if (speed >= 8 && norm_sum < 5) { if (width <= 640 && height <= 480) return 4; else return 2; } return 1; } static TX_SIZE calculate_tx_size(VP9_COMP *const cpi, BLOCK_SIZE bsize, MACROBLOCKD *const xd, unsigned int var, unsigned int sse, int64_t ac_thr, unsigned int source_variance, int is_intra) { // TODO(marpan): Tune selection for intra-modes, screen content, etc. TX_SIZE tx_size; unsigned int var_thresh = is_intra ? (unsigned int)ac_thr : 1; int limit_tx = 1; if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ && (source_variance == 0 || var < var_thresh)) limit_tx = 0; if (cpi->common.tx_mode == TX_MODE_SELECT) { if (sse > (var << 2)) tx_size = VPXMIN(max_txsize_lookup[bsize], tx_mode_to_biggest_tx_size[cpi->common.tx_mode]); else tx_size = TX_8X8; if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ && limit_tx && cyclic_refresh_segment_id_boosted(xd->mi[0]->segment_id)) tx_size = TX_8X8; else if (tx_size > TX_16X16 && limit_tx) tx_size = TX_16X16; // For screen-content force 4X4 tx_size over 8X8, for large variance. if (cpi->oxcf.content == VP9E_CONTENT_SCREEN && tx_size == TX_8X8 && bsize <= BLOCK_16X16 && ((var >> 5) > (unsigned int)ac_thr)) tx_size = TX_4X4; } else { tx_size = VPXMIN(max_txsize_lookup[bsize], tx_mode_to_biggest_tx_size[cpi->common.tx_mode]); } return tx_size; } static void compute_intra_yprediction(PREDICTION_MODE mode, BLOCK_SIZE bsize, MACROBLOCK *x, MACROBLOCKD *xd) { struct macroblockd_plane *const pd = &xd->plane[0]; struct macroblock_plane *const p = &x->plane[0]; uint8_t *const src_buf_base = p->src.buf; uint8_t *const dst_buf_base = pd->dst.buf; const int src_stride = p->src.stride; const int dst_stride = pd->dst.stride; // block and transform sizes, in number of 4x4 blocks log 2 ("*_b") // 4x4=0, 8x8=2, 16x16=4, 32x32=6, 64x64=8 const TX_SIZE tx_size = max_txsize_lookup[bsize]; const int num_4x4_w = num_4x4_blocks_wide_lookup[bsize]; const int num_4x4_h = num_4x4_blocks_high_lookup[bsize]; int row, col; // If mb_to_right_edge is < 0 we are in a situation in which // the current block size extends into the UMV and we won't // visit the sub blocks that are wholly within the UMV. const int max_blocks_wide = num_4x4_w + (xd->mb_to_right_edge >= 0 ? 0 : xd->mb_to_right_edge >> (5 + pd->subsampling_x)); const int max_blocks_high = num_4x4_h + (xd->mb_to_bottom_edge >= 0 ? 0 : xd->mb_to_bottom_edge >> (5 + pd->subsampling_y)); // Keep track of the row and column of the blocks we use so that we know // if we are in the unrestricted motion border. for (row = 0; row < max_blocks_high; row += (1 << tx_size)) { // Skip visiting the sub blocks that are wholly within the UMV. for (col = 0; col < max_blocks_wide; col += (1 << tx_size)) { p->src.buf = &src_buf_base[4 * (row * (int64_t)src_stride + col)]; pd->dst.buf = &dst_buf_base[4 * (row * (int64_t)dst_stride + col)]; vp9_predict_intra_block(xd, b_width_log2_lookup[bsize], tx_size, mode, x->skip_encode ? p->src.buf : pd->dst.buf, x->skip_encode ? src_stride : dst_stride, pd->dst.buf, dst_stride, col, row, 0); } } p->src.buf = src_buf_base; pd->dst.buf = dst_buf_base; } static void model_rd_for_sb_y_large(VP9_COMP *cpi, BLOCK_SIZE bsize, MACROBLOCK *x, MACROBLOCKD *xd, int *out_rate_sum, int64_t *out_dist_sum, unsigned int *var_y, unsigned int *sse_y, int mi_row, int mi_col, int *early_term, int *flag_preduv_computed) { // Note our transform coeffs are 8 times an orthogonal transform. // Hence quantizer step is also 8 times. To get effective quantizer // we need to divide by 8 before sending to modeling function. unsigned int sse; int rate; int64_t dist; struct macroblock_plane *const p = &x->plane[0]; struct macroblockd_plane *const pd = &xd->plane[0]; const uint32_t dc_quant = pd->dequant[0]; const uint32_t ac_quant = pd->dequant[1]; int64_t dc_thr = dc_quant * dc_quant >> 6; int64_t ac_thr = ac_quant * ac_quant >> 6; unsigned int var; int sum; int skip_dc = 0; const int bw = b_width_log2_lookup[bsize]; const int bh = b_height_log2_lookup[bsize]; const int num8x8 = 1 << (bw + bh - 2); unsigned int sse8x8[64] = { 0 }; int sum8x8[64] = { 0 }; unsigned int var8x8[64] = { 0 }; TX_SIZE tx_size; int i, k; #if CONFIG_VP9_HIGHBITDEPTH const vpx_bit_depth_t bd = cpi->common.bit_depth; #endif // Calculate variance for whole partition, and also save 8x8 blocks' variance // to be used in following transform skipping test. block_variance(p->src.buf, p->src.stride, pd->dst.buf, pd->dst.stride, 4 << bw, 4 << bh, &sse, &sum, 8, #if CONFIG_VP9_HIGHBITDEPTH cpi->common.use_highbitdepth, bd, #endif sse8x8, sum8x8, var8x8); var = sse - (unsigned int)(((int64_t)sum * sum) >> (bw + bh + 4)); *var_y = var; *sse_y = sse; #if CONFIG_VP9_TEMPORAL_DENOISING if (cpi->oxcf.noise_sensitivity > 0 && denoise_svc(cpi) && cpi->oxcf.speed > 5) ac_thr = vp9_scale_acskip_thresh(ac_thr, cpi->denoiser.denoising_level, (abs(sum) >> (bw + bh)), cpi->svc.temporal_layer_id); else ac_thr *= ac_thr_factor(cpi->oxcf.speed, cpi->common.width, cpi->common.height, abs(sum) >> (bw + bh)); #else ac_thr *= ac_thr_factor(cpi->oxcf.speed, cpi->common.width, cpi->common.height, abs(sum) >> (bw + bh)); #endif tx_size = calculate_tx_size(cpi, bsize, xd, var, sse, ac_thr, x->source_variance, 0); // The code below for setting skip flag assumes tranform size of at least 8x8, // so force this lower limit on transform. if (tx_size < TX_8X8) tx_size = TX_8X8; xd->mi[0]->tx_size = tx_size; if (cpi->oxcf.content == VP9E_CONTENT_SCREEN && x->zero_temp_sad_source && x->source_variance == 0) dc_thr = dc_thr << 1; // Evaluate if the partition block is a skippable block in Y plane. { unsigned int sse16x16[16] = { 0 }; int sum16x16[16] = { 0 }; unsigned int var16x16[16] = { 0 }; const int num16x16 = num8x8 >> 2; unsigned int sse32x32[4] = { 0 }; int sum32x32[4] = { 0 }; unsigned int var32x32[4] = { 0 }; const int num32x32 = num8x8 >> 4; int ac_test = 1; int dc_test = 1; const int num = (tx_size == TX_8X8) ? num8x8 : ((tx_size == TX_16X16) ? num16x16 : num32x32); const unsigned int *sse_tx = (tx_size == TX_8X8) ? sse8x8 : ((tx_size == TX_16X16) ? sse16x16 : sse32x32); const unsigned int *var_tx = (tx_size == TX_8X8) ? var8x8 : ((tx_size == TX_16X16) ? var16x16 : var32x32); // Calculate variance if tx_size > TX_8X8 if (tx_size >= TX_16X16) calculate_variance(bw, bh, TX_8X8, sse8x8, sum8x8, var16x16, sse16x16, sum16x16); if (tx_size == TX_32X32) calculate_variance(bw, bh, TX_16X16, sse16x16, sum16x16, var32x32, sse32x32, sum32x32); // Skipping test x->skip_txfm[0] = SKIP_TXFM_NONE; for (k = 0; k < num; k++) // Check if all ac coefficients can be quantized to zero. if (!(var_tx[k] < ac_thr || var == 0)) { ac_test = 0; break; } for (k = 0; k < num; k++) // Check if dc coefficient can be quantized to zero. if (!(sse_tx[k] - var_tx[k] < dc_thr || sse == var)) { dc_test = 0; break; } if (ac_test) { x->skip_txfm[0] = SKIP_TXFM_AC_ONLY; if (dc_test) x->skip_txfm[0] = SKIP_TXFM_AC_DC; } else if (dc_test) { skip_dc = 1; } } if (x->skip_txfm[0] == SKIP_TXFM_AC_DC) { int skip_uv[2] = { 0 }; unsigned int var_uv[2]; unsigned int sse_uv[2]; *out_rate_sum = 0; *out_dist_sum = sse << 4; // Transform skipping test in UV planes. for (i = 1; i <= 2; i++) { struct macroblock_plane *const p = &x->plane[i]; struct macroblockd_plane *const pd = &xd->plane[i]; const TX_SIZE uv_tx_size = get_uv_tx_size(xd->mi[0], pd); const BLOCK_SIZE unit_size = txsize_to_bsize[uv_tx_size]; const BLOCK_SIZE uv_bsize = get_plane_block_size(bsize, pd); const int uv_bw = b_width_log2_lookup[uv_bsize]; const int uv_bh = b_height_log2_lookup[uv_bsize]; const int sf = (uv_bw - b_width_log2_lookup[unit_size]) + (uv_bh - b_height_log2_lookup[unit_size]); const uint32_t uv_dc_thr = pd->dequant[0] * pd->dequant[0] >> (6 - sf); const uint32_t uv_ac_thr = pd->dequant[1] * pd->dequant[1] >> (6 - sf); int j = i - 1; vp9_build_inter_predictors_sbp(xd, mi_row, mi_col, bsize, i); flag_preduv_computed[i - 1] = 1; var_uv[j] = cpi->fn_ptr[uv_bsize].vf( p->src.buf, p->src.stride, pd->dst.buf, pd->dst.stride, &sse_uv[j]); if ((var_uv[j] < uv_ac_thr || var_uv[j] == 0) && (sse_uv[j] - var_uv[j] < uv_dc_thr || sse_uv[j] == var_uv[j])) skip_uv[j] = 1; else break; } // If the transform in YUV planes are skippable, the mode search checks // fewer inter modes and doesn't check intra modes. if (skip_uv[0] & skip_uv[1]) { *early_term = 1; } return; } if (!skip_dc) { #if CONFIG_VP9_HIGHBITDEPTH vp9_model_rd_from_var_lapndz(sse - var, num_pels_log2_lookup[bsize], dc_quant >> (xd->bd - 5), &rate, &dist); #else vp9_model_rd_from_var_lapndz(sse - var, num_pels_log2_lookup[bsize], dc_quant >> 3, &rate, &dist); #endif // CONFIG_VP9_HIGHBITDEPTH } if (!skip_dc) { *out_rate_sum = rate >> 1; *out_dist_sum = dist << 3; } else { *out_rate_sum = 0; *out_dist_sum = (sse - var) << 4; } #if CONFIG_VP9_HIGHBITDEPTH vp9_model_rd_from_var_lapndz(var, num_pels_log2_lookup[bsize], ac_quant >> (xd->bd - 5), &rate, &dist); #else vp9_model_rd_from_var_lapndz(var, num_pels_log2_lookup[bsize], ac_quant >> 3, &rate, &dist); #endif // CONFIG_VP9_HIGHBITDEPTH *out_rate_sum += rate; *out_dist_sum += dist << 4; } static void model_rd_for_sb_y(VP9_COMP *cpi, BLOCK_SIZE bsize, MACROBLOCK *x, MACROBLOCKD *xd, int *out_rate_sum, int64_t *out_dist_sum, unsigned int *var_y, unsigned int *sse_y, int is_intra) { // Note our transform coeffs are 8 times an orthogonal transform. // Hence quantizer step is also 8 times. To get effective quantizer // we need to divide by 8 before sending to modeling function. unsigned int sse; int rate; int64_t dist; struct macroblock_plane *const p = &x->plane[0]; struct macroblockd_plane *const pd = &xd->plane[0]; const int64_t dc_thr = p->quant_thred[0] >> 6; const int64_t ac_thr = p->quant_thred[1] >> 6; const uint32_t dc_quant = pd->dequant[0]; const uint32_t ac_quant = pd->dequant[1]; unsigned int var = cpi->fn_ptr[bsize].vf(p->src.buf, p->src.stride, pd->dst.buf, pd->dst.stride, &sse); int skip_dc = 0; *var_y = var; *sse_y = sse; xd->mi[0]->tx_size = calculate_tx_size(cpi, bsize, xd, var, sse, ac_thr, x->source_variance, is_intra); // Evaluate if the partition block is a skippable block in Y plane. { const BLOCK_SIZE unit_size = txsize_to_bsize[xd->mi[0]->tx_size]; const unsigned int num_blk_log2 = (b_width_log2_lookup[bsize] - b_width_log2_lookup[unit_size]) + (b_height_log2_lookup[bsize] - b_height_log2_lookup[unit_size]); const unsigned int sse_tx = sse >> num_blk_log2; const unsigned int var_tx = var >> num_blk_log2; x->skip_txfm[0] = SKIP_TXFM_NONE; // Check if all ac coefficients can be quantized to zero. if (var_tx < ac_thr || var == 0) { x->skip_txfm[0] = SKIP_TXFM_AC_ONLY; // Check if dc coefficient can be quantized to zero. if (sse_tx - var_tx < dc_thr || sse == var) x->skip_txfm[0] = SKIP_TXFM_AC_DC; } else { if (sse_tx - var_tx < dc_thr || sse == var) skip_dc = 1; } } if (x->skip_txfm[0] == SKIP_TXFM_AC_DC) { *out_rate_sum = 0; *out_dist_sum = sse << 4; return; } if (!skip_dc) { #if CONFIG_VP9_HIGHBITDEPTH vp9_model_rd_from_var_lapndz(sse - var, num_pels_log2_lookup[bsize], dc_quant >> (xd->bd - 5), &rate, &dist); #else vp9_model_rd_from_var_lapndz(sse - var, num_pels_log2_lookup[bsize], dc_quant >> 3, &rate, &dist); #endif // CONFIG_VP9_HIGHBITDEPTH } if (!skip_dc) { *out_rate_sum = rate >> 1; *out_dist_sum = dist << 3; } else { *out_rate_sum = 0; *out_dist_sum = (sse - var) << 4; } #if CONFIG_VP9_HIGHBITDEPTH vp9_model_rd_from_var_lapndz(var, num_pels_log2_lookup[bsize], ac_quant >> (xd->bd - 5), &rate, &dist); #else vp9_model_rd_from_var_lapndz(var, num_pels_log2_lookup[bsize], ac_quant >> 3, &rate, &dist); #endif // CONFIG_VP9_HIGHBITDEPTH *out_rate_sum += rate; *out_dist_sum += dist << 4; } static void block_yrd(VP9_COMP *cpi, MACROBLOCK *x, RD_COST *this_rdc, int *skippable, int64_t *sse, BLOCK_SIZE bsize, TX_SIZE tx_size, int rd_computed, int is_intra) { MACROBLOCKD *xd = &x->e_mbd; const struct macroblockd_plane *pd = &xd->plane[0]; struct macroblock_plane *const p = &x->plane[0]; const int num_4x4_w = num_4x4_blocks_wide_lookup[bsize]; const int num_4x4_h = num_4x4_blocks_high_lookup[bsize]; const int step = 1 << (tx_size << 1); const int block_step = (1 << tx_size); int block = 0, r, c; const int max_blocks_wide = num_4x4_w + (xd->mb_to_right_edge >= 0 ? 0 : xd->mb_to_right_edge >> 5); const int max_blocks_high = num_4x4_h + (xd->mb_to_bottom_edge >= 0 ? 0 : xd->mb_to_bottom_edge >> 5); int eob_cost = 0; const int bw = 4 * num_4x4_w; const int bh = 4 * num_4x4_h; if (cpi->sf.use_simple_block_yrd && cpi->common.frame_type != KEY_FRAME && (bsize < BLOCK_32X32 || (cpi->use_svc && (bsize < BLOCK_32X32 || cpi->svc.temporal_layer_id > 0)))) { unsigned int var_y, sse_y; (void)tx_size; if (!rd_computed) model_rd_for_sb_y(cpi, bsize, x, xd, &this_rdc->rate, &this_rdc->dist, &var_y, &sse_y, is_intra); *sse = INT_MAX; *skippable = 0; return; } (void)cpi; // The max tx_size passed in is TX_16X16. assert(tx_size != TX_32X32); #if CONFIG_VP9_HIGHBITDEPTH if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { vpx_highbd_subtract_block(bh, bw, p->src_diff, bw, p->src.buf, p->src.stride, pd->dst.buf, pd->dst.stride, x->e_mbd.bd); } else { vpx_subtract_block(bh, bw, p->src_diff, bw, p->src.buf, p->src.stride, pd->dst.buf, pd->dst.stride); } #else vpx_subtract_block(bh, bw, p->src_diff, bw, p->src.buf, p->src.stride, pd->dst.buf, pd->dst.stride); #endif *skippable = 1; // Keep track of the row and column of the blocks we use so that we know // if we are in the unrestricted motion border. for (r = 0; r < max_blocks_high; r += block_step) { for (c = 0; c < num_4x4_w; c += block_step) { if (c < max_blocks_wide) { const scan_order *const scan_order = &vp9_default_scan_orders[tx_size]; tran_low_t *const coeff = BLOCK_OFFSET(p->coeff, block); tran_low_t *const qcoeff = BLOCK_OFFSET(p->qcoeff, block); tran_low_t *const dqcoeff = BLOCK_OFFSET(pd->dqcoeff, block); uint16_t *const eob = &p->eobs[block]; const int diff_stride = bw; const int16_t *src_diff; src_diff = &p->src_diff[(r * diff_stride + c) << 2]; switch (tx_size) { case TX_16X16: vpx_hadamard_16x16(src_diff, diff_stride, coeff); vp9_quantize_fp(coeff, 256, x->skip_block, p->round_fp, p->quant_fp, qcoeff, dqcoeff, pd->dequant, eob, scan_order->scan, scan_order->iscan); break; case TX_8X8: vpx_hadamard_8x8(src_diff, diff_stride, coeff); vp9_quantize_fp(coeff, 64, x->skip_block, p->round_fp, p->quant_fp, qcoeff, dqcoeff, pd->dequant, eob, scan_order->scan, scan_order->iscan); break; default: assert(tx_size == TX_4X4); x->fwd_txfm4x4(src_diff, coeff, diff_stride); vp9_quantize_fp(coeff, 16, x->skip_block, p->round_fp, p->quant_fp, qcoeff, dqcoeff, pd->dequant, eob, scan_order->scan, scan_order->iscan); break; } *skippable &= (*eob == 0); eob_cost += 1; } block += step; } } this_rdc->rate = 0; if (*sse < INT64_MAX) { *sse = (*sse << 6) >> 2; if (*skippable) { this_rdc->dist = *sse; return; } } block = 0; this_rdc->dist = 0; for (r = 0; r < max_blocks_high; r += block_step) { for (c = 0; c < num_4x4_w; c += block_step) { if (c < max_blocks_wide) { tran_low_t *const coeff = BLOCK_OFFSET(p->coeff, block); tran_low_t *const qcoeff = BLOCK_OFFSET(p->qcoeff, block); tran_low_t *const dqcoeff = BLOCK_OFFSET(pd->dqcoeff, block); uint16_t *const eob = &p->eobs[block]; if (*eob == 1) this_rdc->rate += (int)abs(qcoeff[0]); else if (*eob > 1) this_rdc->rate += vpx_satd(qcoeff, step << 4); this_rdc->dist += vp9_block_error_fp(coeff, dqcoeff, step << 4) >> 2; } block += step; } } // If skippable is set, rate gets clobbered later. this_rdc->rate <<= (2 + VP9_PROB_COST_SHIFT); this_rdc->rate += (eob_cost << VP9_PROB_COST_SHIFT); } static void model_rd_for_sb_uv(VP9_COMP *cpi, BLOCK_SIZE plane_bsize, MACROBLOCK *x, MACROBLOCKD *xd, RD_COST *this_rdc, unsigned int *var_y, unsigned int *sse_y, int start_plane, int stop_plane) { // Note our transform coeffs are 8 times an orthogonal transform. // Hence quantizer step is also 8 times. To get effective quantizer // we need to divide by 8 before sending to modeling function. unsigned int sse; int rate; int64_t dist; int i; #if CONFIG_VP9_HIGHBITDEPTH uint64_t tot_var = *var_y; uint64_t tot_sse = *sse_y; #else uint32_t tot_var = *var_y; uint32_t tot_sse = *sse_y; #endif this_rdc->rate = 0; this_rdc->dist = 0; for (i = start_plane; i <= stop_plane; ++i) { struct macroblock_plane *const p = &x->plane[i]; struct macroblockd_plane *const pd = &xd->plane[i]; const uint32_t dc_quant = pd->dequant[0]; const uint32_t ac_quant = pd->dequant[1]; const BLOCK_SIZE bs = plane_bsize; unsigned int var; if (!x->color_sensitivity[i - 1]) continue; var = cpi->fn_ptr[bs].vf(p->src.buf, p->src.stride, pd->dst.buf, pd->dst.stride, &sse); assert(sse >= var); tot_var += var; tot_sse += sse; #if CONFIG_VP9_HIGHBITDEPTH vp9_model_rd_from_var_lapndz(sse - var, num_pels_log2_lookup[bs], dc_quant >> (xd->bd - 5), &rate, &dist); #else vp9_model_rd_from_var_lapndz(sse - var, num_pels_log2_lookup[bs], dc_quant >> 3, &rate, &dist); #endif // CONFIG_VP9_HIGHBITDEPTH this_rdc->rate += rate >> 1; this_rdc->dist += dist << 3; #if CONFIG_VP9_HIGHBITDEPTH vp9_model_rd_from_var_lapndz(var, num_pels_log2_lookup[bs], ac_quant >> (xd->bd - 5), &rate, &dist); #else vp9_model_rd_from_var_lapndz(var, num_pels_log2_lookup[bs], ac_quant >> 3, &rate, &dist); #endif // CONFIG_VP9_HIGHBITDEPTH this_rdc->rate += rate; this_rdc->dist += dist << 4; } #if CONFIG_VP9_HIGHBITDEPTH *var_y = tot_var > UINT32_MAX ? UINT32_MAX : (uint32_t)tot_var; *sse_y = tot_sse > UINT32_MAX ? UINT32_MAX : (uint32_t)tot_sse; #else *var_y = tot_var; *sse_y = tot_sse; #endif } static int get_pred_buffer(PRED_BUFFER *p, int len) { int i; for (i = 0; i < len; i++) { if (!p[i].in_use) { p[i].in_use = 1; return i; } } return -1; } static void free_pred_buffer(PRED_BUFFER *p) { if (p != NULL) p->in_use = 0; } static void encode_breakout_test( VP9_COMP *cpi, MACROBLOCK *x, BLOCK_SIZE bsize, int mi_row, int mi_col, MV_REFERENCE_FRAME ref_frame, PREDICTION_MODE this_mode, unsigned int var_y, unsigned int sse_y, struct buf_2d yv12_mb[][MAX_MB_PLANE], int *rate, int64_t *dist, int *flag_preduv_computed) { MACROBLOCKD *xd = &x->e_mbd; MODE_INFO *const mi = xd->mi[0]; const BLOCK_SIZE uv_size = get_plane_block_size(bsize, &xd->plane[1]); unsigned int var = var_y, sse = sse_y; // Skipping threshold for ac. unsigned int thresh_ac; // Skipping threshold for dc. unsigned int thresh_dc; int motion_low = 1; if (cpi->use_svc && ref_frame == GOLDEN_FRAME) return; if (mi->mv[0].as_mv.row > 64 || mi->mv[0].as_mv.row < -64 || mi->mv[0].as_mv.col > 64 || mi->mv[0].as_mv.col < -64) motion_low = 0; if (x->encode_breakout > 0 && motion_low == 1) { // Set a maximum for threshold to avoid big PSNR loss in low bit rate // case. Use extreme low threshold for static frames to limit // skipping. const unsigned int max_thresh = 36000; // The encode_breakout input const unsigned int min_thresh = VPXMIN(((unsigned int)x->encode_breakout << 4), max_thresh); #if CONFIG_VP9_HIGHBITDEPTH const int shift = (xd->bd << 1) - 16; #endif // Calculate threshold according to dequant value. thresh_ac = (xd->plane[0].dequant[1] * xd->plane[0].dequant[1]) >> 3; #if CONFIG_VP9_HIGHBITDEPTH if ((xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) && shift > 0) { thresh_ac = ROUND_POWER_OF_TWO(thresh_ac, shift); } #endif // CONFIG_VP9_HIGHBITDEPTH thresh_ac = clamp(thresh_ac, min_thresh, max_thresh); // Adjust ac threshold according to partition size. thresh_ac >>= 8 - (b_width_log2_lookup[bsize] + b_height_log2_lookup[bsize]); thresh_dc = (xd->plane[0].dequant[0] * xd->plane[0].dequant[0] >> 6); #if CONFIG_VP9_HIGHBITDEPTH if ((xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) && shift > 0) { thresh_dc = ROUND_POWER_OF_TWO(thresh_dc, shift); } #endif // CONFIG_VP9_HIGHBITDEPTH } else { thresh_ac = 0; thresh_dc = 0; } // Y skipping condition checking for ac and dc. if (var <= thresh_ac && (sse - var) <= thresh_dc) { unsigned int sse_u, sse_v; unsigned int var_u, var_v; unsigned int thresh_ac_uv = thresh_ac; unsigned int thresh_dc_uv = thresh_dc; if (x->sb_is_skin) { thresh_ac_uv = 0; thresh_dc_uv = 0; } if (!flag_preduv_computed[0] || !flag_preduv_computed[1]) { xd->plane[1].pre[0] = yv12_mb[ref_frame][1]; xd->plane[2].pre[0] = yv12_mb[ref_frame][2]; vp9_build_inter_predictors_sbuv(xd, mi_row, mi_col, bsize); } var_u = cpi->fn_ptr[uv_size].vf(x->plane[1].src.buf, x->plane[1].src.stride, xd->plane[1].dst.buf, xd->plane[1].dst.stride, &sse_u); // U skipping condition checking if (((var_u << 2) <= thresh_ac_uv) && (sse_u - var_u <= thresh_dc_uv)) { var_v = cpi->fn_ptr[uv_size].vf( x->plane[2].src.buf, x->plane[2].src.stride, xd->plane[2].dst.buf, xd->plane[2].dst.stride, &sse_v); // V skipping condition checking if (((var_v << 2) <= thresh_ac_uv) && (sse_v - var_v <= thresh_dc_uv)) { x->skip = 1; // The cost of skip bit needs to be added. *rate = cpi->inter_mode_cost[x->mbmi_ext->mode_context[ref_frame]] [INTER_OFFSET(this_mode)]; // More on this part of rate // rate += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1); // Scaling factor for SSE from spatial domain to frequency // domain is 16. Adjust distortion accordingly. // TODO(yunqingwang): In this function, only y-plane dist is // calculated. *dist = (sse << 4); // + ((sse_u + sse_v) << 4); // *disable_skip = 1; } } } } struct estimate_block_intra_args { VP9_COMP *cpi; MACROBLOCK *x; PREDICTION_MODE mode; int skippable; RD_COST *rdc; }; static void estimate_block_intra(int plane, int block, int row, int col, BLOCK_SIZE plane_bsize, TX_SIZE tx_size, void *arg) { struct estimate_block_intra_args *const args = arg; VP9_COMP *const cpi = args->cpi; MACROBLOCK *const x = args->x; MACROBLOCKD *const xd = &x->e_mbd; struct macroblock_plane *const p = &x->plane[plane]; struct macroblockd_plane *const pd = &xd->plane[plane]; const BLOCK_SIZE bsize_tx = txsize_to_bsize[tx_size]; uint8_t *const src_buf_base = p->src.buf; uint8_t *const dst_buf_base = pd->dst.buf; const int src_stride = p->src.stride; const int dst_stride = pd->dst.stride; RD_COST this_rdc; (void)block; p->src.buf = &src_buf_base[4 * (row * (int64_t)src_stride + col)]; pd->dst.buf = &dst_buf_base[4 * (row * (int64_t)dst_stride + col)]; // Use source buffer as an approximation for the fully reconstructed buffer. vp9_predict_intra_block(xd, b_width_log2_lookup[plane_bsize], tx_size, args->mode, x->skip_encode ? p->src.buf : pd->dst.buf, x->skip_encode ? src_stride : dst_stride, pd->dst.buf, dst_stride, col, row, plane); if (plane == 0) { int64_t this_sse = INT64_MAX; block_yrd(cpi, x, &this_rdc, &args->skippable, &this_sse, bsize_tx, VPXMIN(tx_size, TX_16X16), 0, 1); } else { unsigned int var = 0; unsigned int sse = 0; model_rd_for_sb_uv(cpi, bsize_tx, x, xd, &this_rdc, &var, &sse, plane, plane); } p->src.buf = src_buf_base; pd->dst.buf = dst_buf_base; args->rdc->rate += this_rdc.rate; args->rdc->dist += this_rdc.dist; } static const THR_MODES mode_idx[MAX_REF_FRAMES][4] = { { THR_DC, THR_V_PRED, THR_H_PRED, THR_TM }, { THR_NEARESTMV, THR_NEARMV, THR_ZEROMV, THR_NEWMV }, { THR_NEARESTG, THR_NEARG, THR_ZEROG, THR_NEWG }, { THR_NEARESTA, THR_NEARA, THR_ZEROA, THR_NEWA }, }; static const PREDICTION_MODE intra_mode_list[] = { DC_PRED, V_PRED, H_PRED, TM_PRED }; static int mode_offset(const PREDICTION_MODE mode) { if (mode >= NEARESTMV) { return INTER_OFFSET(mode); } else { switch (mode) { case DC_PRED: return 0; case V_PRED: return 1; case H_PRED: return 2; case TM_PRED: return 3; default: return -1; } } } static INLINE int rd_less_than_thresh_row_mt(int64_t best_rd, int thresh, const int *const thresh_fact) { int is_rd_less_than_thresh; is_rd_less_than_thresh = best_rd < ((int64_t)thresh * (*thresh_fact) >> 5) || thresh == INT_MAX; return is_rd_less_than_thresh; } static INLINE void update_thresh_freq_fact_row_mt( VP9_COMP *cpi, TileDataEnc *tile_data, int source_variance, int thresh_freq_fact_idx, MV_REFERENCE_FRAME ref_frame, THR_MODES best_mode_idx, PREDICTION_MODE mode) { THR_MODES thr_mode_idx = mode_idx[ref_frame][mode_offset(mode)]; int freq_fact_idx = thresh_freq_fact_idx + thr_mode_idx; int *freq_fact = &tile_data->row_base_thresh_freq_fact[freq_fact_idx]; if (thr_mode_idx == best_mode_idx) *freq_fact -= (*freq_fact >> 4); else if (cpi->sf.limit_newmv_early_exit && mode == NEWMV && ref_frame == LAST_FRAME && source_variance < 5) { *freq_fact = VPXMIN(*freq_fact + RD_THRESH_INC, 32); } else { *freq_fact = VPXMIN(*freq_fact + RD_THRESH_INC, cpi->sf.adaptive_rd_thresh * RD_THRESH_MAX_FACT); } } static INLINE void update_thresh_freq_fact( VP9_COMP *cpi, TileDataEnc *tile_data, int source_variance, BLOCK_SIZE bsize, MV_REFERENCE_FRAME ref_frame, THR_MODES best_mode_idx, PREDICTION_MODE mode) { THR_MODES thr_mode_idx = mode_idx[ref_frame][mode_offset(mode)]; int *freq_fact = &tile_data->thresh_freq_fact[bsize][thr_mode_idx]; if (thr_mode_idx == best_mode_idx) *freq_fact -= (*freq_fact >> 4); else if (cpi->sf.limit_newmv_early_exit && mode == NEWMV && ref_frame == LAST_FRAME && source_variance < 5) { *freq_fact = VPXMIN(*freq_fact + RD_THRESH_INC, 32); } else { *freq_fact = VPXMIN(*freq_fact + RD_THRESH_INC, cpi->sf.adaptive_rd_thresh * RD_THRESH_MAX_FACT); } } void vp9_pick_intra_mode(VP9_COMP *cpi, MACROBLOCK *x, RD_COST *rd_cost, BLOCK_SIZE bsize, PICK_MODE_CONTEXT *ctx) { MACROBLOCKD *const xd = &x->e_mbd; MODE_INFO *const mi = xd->mi[0]; RD_COST this_rdc, best_rdc; PREDICTION_MODE this_mode; struct estimate_block_intra_args args = { cpi, x, DC_PRED, 1, 0 }; const TX_SIZE intra_tx_size = VPXMIN(max_txsize_lookup[bsize], tx_mode_to_biggest_tx_size[cpi->common.tx_mode]); MODE_INFO *const mic = xd->mi[0]; int *bmode_costs; const MODE_INFO *above_mi = xd->above_mi; const MODE_INFO *left_mi = xd->left_mi; const PREDICTION_MODE A = vp9_above_block_mode(mic, above_mi, 0); const PREDICTION_MODE L = vp9_left_block_mode(mic, left_mi, 0); bmode_costs = cpi->y_mode_costs[A][L]; (void)ctx; vp9_rd_cost_reset(&best_rdc); vp9_rd_cost_reset(&this_rdc); mi->ref_frame[0] = INTRA_FRAME; // Initialize interp_filter here so we do not have to check for inter block // modes in get_pred_context_switchable_interp() mi->interp_filter = SWITCHABLE_FILTERS; mi->mv[0].as_int = INVALID_MV; mi->uv_mode = DC_PRED; memset(x->skip_txfm, 0, sizeof(x->skip_txfm)); // Change the limit of this loop to add other intra prediction // mode tests. for (this_mode = DC_PRED; this_mode <= H_PRED; ++this_mode) { this_rdc.dist = this_rdc.rate = 0; args.mode = this_mode; args.skippable = 1; args.rdc = &this_rdc; mi->tx_size = intra_tx_size; vp9_foreach_transformed_block_in_plane(xd, bsize, 0, estimate_block_intra, &args); if (args.skippable) { x->skip_txfm[0] = SKIP_TXFM_AC_DC; this_rdc.rate = vp9_cost_bit(vp9_get_skip_prob(&cpi->common, xd), 1); } else { x->skip_txfm[0] = SKIP_TXFM_NONE; this_rdc.rate += vp9_cost_bit(vp9_get_skip_prob(&cpi->common, xd), 0); } this_rdc.rate += bmode_costs[this_mode]; this_rdc.rdcost = RDCOST(x->rdmult, x->rddiv, this_rdc.rate, this_rdc.dist); if (this_rdc.rdcost < best_rdc.rdcost) { best_rdc = this_rdc; mi->mode = this_mode; } } *rd_cost = best_rdc; } static void init_ref_frame_cost(VP9_COMMON *const cm, MACROBLOCKD *const xd, int ref_frame_cost[MAX_REF_FRAMES]) { vpx_prob intra_inter_p = vp9_get_intra_inter_prob(cm, xd); vpx_prob ref_single_p1 = vp9_get_pred_prob_single_ref_p1(cm, xd); vpx_prob ref_single_p2 = vp9_get_pred_prob_single_ref_p2(cm, xd); ref_frame_cost[INTRA_FRAME] = vp9_cost_bit(intra_inter_p, 0); ref_frame_cost[LAST_FRAME] = ref_frame_cost[GOLDEN_FRAME] = ref_frame_cost[ALTREF_FRAME] = vp9_cost_bit(intra_inter_p, 1); ref_frame_cost[LAST_FRAME] += vp9_cost_bit(ref_single_p1, 0); ref_frame_cost[GOLDEN_FRAME] += vp9_cost_bit(ref_single_p1, 1); ref_frame_cost[ALTREF_FRAME] += vp9_cost_bit(ref_single_p1, 1); ref_frame_cost[GOLDEN_FRAME] += vp9_cost_bit(ref_single_p2, 0); ref_frame_cost[ALTREF_FRAME] += vp9_cost_bit(ref_single_p2, 1); } typedef struct { MV_REFERENCE_FRAME ref_frame; PREDICTION_MODE pred_mode; } REF_MODE; #define RT_INTER_MODES 12 static const REF_MODE ref_mode_set[RT_INTER_MODES] = { { LAST_FRAME, ZEROMV }, { LAST_FRAME, NEARESTMV }, { GOLDEN_FRAME, ZEROMV }, { LAST_FRAME, NEARMV }, { LAST_FRAME, NEWMV }, { GOLDEN_FRAME, NEARESTMV }, { GOLDEN_FRAME, NEARMV }, { GOLDEN_FRAME, NEWMV }, { ALTREF_FRAME, ZEROMV }, { ALTREF_FRAME, NEARESTMV }, { ALTREF_FRAME, NEARMV }, { ALTREF_FRAME, NEWMV } }; #define RT_INTER_MODES_SVC 8 static const REF_MODE ref_mode_set_svc[RT_INTER_MODES_SVC] = { { LAST_FRAME, ZEROMV }, { LAST_FRAME, NEARESTMV }, { LAST_FRAME, NEARMV }, { GOLDEN_FRAME, ZEROMV }, { GOLDEN_FRAME, NEARESTMV }, { GOLDEN_FRAME, NEARMV }, { LAST_FRAME, NEWMV }, { GOLDEN_FRAME, NEWMV } }; static INLINE void find_predictors( VP9_COMP *cpi, MACROBLOCK *x, MV_REFERENCE_FRAME ref_frame, int_mv frame_mv[MB_MODE_COUNT][MAX_REF_FRAMES], int const_motion[MAX_REF_FRAMES], int *ref_frame_skip_mask, const int flag_list[4], TileDataEnc *tile_data, int mi_row, int mi_col, struct buf_2d yv12_mb[4][MAX_MB_PLANE], BLOCK_SIZE bsize, int force_skip_low_temp_var, int comp_pred_allowed) { VP9_COMMON *const cm = &cpi->common; MACROBLOCKD *const xd = &x->e_mbd; const YV12_BUFFER_CONFIG *yv12 = get_ref_frame_buffer(cpi, ref_frame); TileInfo *const tile_info = &tile_data->tile_info; // TODO(jingning) placeholder for inter-frame non-RD mode decision. x->pred_mv_sad[ref_frame] = INT_MAX; frame_mv[NEWMV][ref_frame].as_int = INVALID_MV; frame_mv[ZEROMV][ref_frame].as_int = 0; // this needs various further optimizations. to be continued.. if ((cpi->ref_frame_flags & flag_list[ref_frame]) && (yv12 != NULL)) { int_mv *const candidates = x->mbmi_ext->ref_mvs[ref_frame]; const struct scale_factors *const sf = &cm->frame_refs[ref_frame - 1].sf; vp9_setup_pred_block(xd, yv12_mb[ref_frame], yv12, mi_row, mi_col, sf, sf); if (cm->use_prev_frame_mvs || comp_pred_allowed) { vp9_find_mv_refs(cm, xd, xd->mi[0], ref_frame, candidates, mi_row, mi_col, x->mbmi_ext->mode_context); } else { const_motion[ref_frame] = mv_refs_rt(cpi, cm, x, xd, tile_info, xd->mi[0], ref_frame, candidates, &frame_mv[NEWMV][ref_frame], mi_row, mi_col, (int)(cpi->svc.use_base_mv && cpi->svc.spatial_layer_id)); } vp9_find_best_ref_mvs(xd, cm->allow_high_precision_mv, candidates, &frame_mv[NEARESTMV][ref_frame], &frame_mv[NEARMV][ref_frame]); // Early exit for golden frame if force_skip_low_temp_var is set. if (!vp9_is_scaled(sf) && bsize >= BLOCK_8X8 && !(force_skip_low_temp_var && ref_frame == GOLDEN_FRAME)) { vp9_mv_pred(cpi, x, yv12_mb[ref_frame][0].buf, yv12->y_stride, ref_frame, bsize); } } else { *ref_frame_skip_mask |= (1 << ref_frame); } } static void vp9_NEWMV_diff_bias(const NOISE_ESTIMATE *ne, MACROBLOCKD *xd, PREDICTION_MODE this_mode, RD_COST *this_rdc, BLOCK_SIZE bsize, int mv_row, int mv_col, int is_last_frame, int lowvar_highsumdiff, int is_skin) { // Bias against MVs associated with NEWMV mode that are very different from // top/left neighbors. if (this_mode == NEWMV) { int al_mv_average_row; int al_mv_average_col; int left_row, left_col; int row_diff, col_diff; int above_mv_valid = 0; int left_mv_valid = 0; int above_row = 0; int above_col = 0; if (xd->above_mi) { above_mv_valid = xd->above_mi->mv[0].as_int != INVALID_MV; above_row = xd->above_mi->mv[0].as_mv.row; above_col = xd->above_mi->mv[0].as_mv.col; } if (xd->left_mi) { left_mv_valid = xd->left_mi->mv[0].as_int != INVALID_MV; left_row = xd->left_mi->mv[0].as_mv.row; left_col = xd->left_mi->mv[0].as_mv.col; } if (above_mv_valid && left_mv_valid) { al_mv_average_row = (above_row + left_row + 1) >> 1; al_mv_average_col = (above_col + left_col + 1) >> 1; } else if (above_mv_valid) { al_mv_average_row = above_row; al_mv_average_col = above_col; } else if (left_mv_valid) { al_mv_average_row = left_row; al_mv_average_col = left_col; } else { al_mv_average_row = al_mv_average_col = 0; } row_diff = (al_mv_average_row - mv_row); col_diff = (al_mv_average_col - mv_col); if (row_diff > 48 || row_diff < -48 || col_diff > 48 || col_diff < -48) { if (bsize > BLOCK_32X32) this_rdc->rdcost = this_rdc->rdcost << 1; else this_rdc->rdcost = 3 * this_rdc->rdcost >> 1; } } // If noise estimation is enabled, and estimated level is above threshold, // add a bias to LAST reference with small motion, for large blocks. if (ne->enabled && ne->level >= kMedium && bsize >= BLOCK_32X32 && is_last_frame && mv_row < 8 && mv_row > -8 && mv_col < 8 && mv_col > -8) this_rdc->rdcost = 7 * (this_rdc->rdcost >> 3); else if (lowvar_highsumdiff && !is_skin && bsize >= BLOCK_16X16 && is_last_frame && mv_row < 16 && mv_row > -16 && mv_col < 16 && mv_col > -16) this_rdc->rdcost = 7 * (this_rdc->rdcost >> 3); } #if CONFIG_VP9_TEMPORAL_DENOISING static void vp9_pickmode_ctx_den_update( VP9_PICKMODE_CTX_DEN *ctx_den, int64_t zero_last_cost_orig, int ref_frame_cost[MAX_REF_FRAMES], int_mv frame_mv[MB_MODE_COUNT][MAX_REF_FRAMES], int reuse_inter_pred, BEST_PICKMODE *bp) { ctx_den->zero_last_cost_orig = zero_last_cost_orig; ctx_den->ref_frame_cost = ref_frame_cost; ctx_den->frame_mv = frame_mv; ctx_den->reuse_inter_pred = reuse_inter_pred; ctx_den->best_tx_size = bp->best_tx_size; ctx_den->best_mode = bp->best_mode; ctx_den->best_ref_frame = bp->best_ref_frame; ctx_den->best_pred_filter = bp->best_pred_filter; ctx_den->best_mode_skip_txfm = bp->best_mode_skip_txfm; } static void recheck_zeromv_after_denoising( VP9_COMP *cpi, MODE_INFO *const mi, MACROBLOCK *x, MACROBLOCKD *const xd, VP9_DENOISER_DECISION decision, VP9_PICKMODE_CTX_DEN *ctx_den, struct buf_2d yv12_mb[4][MAX_MB_PLANE], RD_COST *best_rdc, BLOCK_SIZE bsize, int mi_row, int mi_col) { // If INTRA or GOLDEN reference was selected, re-evaluate ZEROMV on // denoised result. Only do this under noise conditions, and if rdcost of // ZEROMV onoriginal source is not significantly higher than rdcost of best // mode. if (cpi->noise_estimate.enabled && cpi->noise_estimate.level > kLow && ctx_den->zero_last_cost_orig < (best_rdc->rdcost << 3) && ((ctx_den->best_ref_frame == INTRA_FRAME && decision >= FILTER_BLOCK) || (ctx_den->best_ref_frame == GOLDEN_FRAME && cpi->svc.number_spatial_layers == 1 && decision == FILTER_ZEROMV_BLOCK))) { // Check if we should pick ZEROMV on denoised signal. VP9_COMMON *const cm = &cpi->common; int rate = 0; int64_t dist = 0; uint32_t var_y = UINT_MAX; uint32_t sse_y = UINT_MAX; RD_COST this_rdc; mi->mode = ZEROMV; mi->ref_frame[0] = LAST_FRAME; mi->ref_frame[1] = NONE; set_ref_ptrs(cm, xd, mi->ref_frame[0], NONE); mi->mv[0].as_int = 0; mi->interp_filter = EIGHTTAP; if (cpi->sf.default_interp_filter == BILINEAR) mi->interp_filter = BILINEAR; xd->plane[0].pre[0] = yv12_mb[LAST_FRAME][0]; vp9_build_inter_predictors_sby(xd, mi_row, mi_col, bsize); model_rd_for_sb_y(cpi, bsize, x, xd, &rate, &dist, &var_y, &sse_y, 0); this_rdc.rate = rate + ctx_den->ref_frame_cost[LAST_FRAME] + cpi->inter_mode_cost[x->mbmi_ext->mode_context[LAST_FRAME]] [INTER_OFFSET(ZEROMV)]; this_rdc.dist = dist; this_rdc.rdcost = RDCOST(x->rdmult, x->rddiv, rate, dist); // Don't switch to ZEROMV if the rdcost for ZEROMV on denoised source // is higher than best_ref mode (on original source). if (this_rdc.rdcost > best_rdc->rdcost) { this_rdc = *best_rdc; mi->mode = ctx_den->best_mode; mi->ref_frame[0] = ctx_den->best_ref_frame; set_ref_ptrs(cm, xd, mi->ref_frame[0], NONE); mi->interp_filter = ctx_den->best_pred_filter; if (ctx_den->best_ref_frame == INTRA_FRAME) { mi->mv[0].as_int = INVALID_MV; mi->interp_filter = SWITCHABLE_FILTERS; } else if (ctx_den->best_ref_frame == GOLDEN_FRAME) { mi->mv[0].as_int = ctx_den->frame_mv[ctx_den->best_mode][ctx_den->best_ref_frame] .as_int; if (ctx_den->reuse_inter_pred) { xd->plane[0].pre[0] = yv12_mb[GOLDEN_FRAME][0]; vp9_build_inter_predictors_sby(xd, mi_row, mi_col, bsize); } } mi->tx_size = ctx_den->best_tx_size; x->skip_txfm[0] = ctx_den->best_mode_skip_txfm; } else { ctx_den->best_ref_frame = LAST_FRAME; *best_rdc = this_rdc; } } } #endif // CONFIG_VP9_TEMPORAL_DENOISING static INLINE int get_force_skip_low_temp_var(uint8_t *variance_low, int mi_row, int mi_col, BLOCK_SIZE bsize) { const int i = (mi_row & 0x7) >> 1; const int j = (mi_col & 0x7) >> 1; int force_skip_low_temp_var = 0; // Set force_skip_low_temp_var based on the block size and block offset. if (bsize == BLOCK_64X64) { force_skip_low_temp_var = variance_low[0]; } else if (bsize == BLOCK_64X32) { if (!(mi_col & 0x7) && !(mi_row & 0x7)) { force_skip_low_temp_var = variance_low[1]; } else if (!(mi_col & 0x7) && (mi_row & 0x7)) { force_skip_low_temp_var = variance_low[2]; } } else if (bsize == BLOCK_32X64) { if (!(mi_col & 0x7) && !(mi_row & 0x7)) { force_skip_low_temp_var = variance_low[3]; } else if ((mi_col & 0x7) && !(mi_row & 0x7)) { force_skip_low_temp_var = variance_low[4]; } } else if (bsize == BLOCK_32X32) { if (!(mi_col & 0x7) && !(mi_row & 0x7)) { force_skip_low_temp_var = variance_low[5]; } else if ((mi_col & 0x7) && !(mi_row & 0x7)) { force_skip_low_temp_var = variance_low[6]; } else if (!(mi_col & 0x7) && (mi_row & 0x7)) { force_skip_low_temp_var = variance_low[7]; } else if ((mi_col & 0x7) && (mi_row & 0x7)) { force_skip_low_temp_var = variance_low[8]; } } else if (bsize == BLOCK_16X16) { force_skip_low_temp_var = variance_low[pos_shift_16x16[i][j]]; } else if (bsize == BLOCK_32X16) { // The col shift index for the second 16x16 block. const int j2 = ((mi_col + 2) & 0x7) >> 1; // Only if each 16x16 block inside has low temporal variance. force_skip_low_temp_var = variance_low[pos_shift_16x16[i][j]] && variance_low[pos_shift_16x16[i][j2]]; } else if (bsize == BLOCK_16X32) { // The row shift index for the second 16x16 block. const int i2 = ((mi_row + 2) & 0x7) >> 1; force_skip_low_temp_var = variance_low[pos_shift_16x16[i][j]] && variance_low[pos_shift_16x16[i2][j]]; } return force_skip_low_temp_var; } static void search_filter_ref(VP9_COMP *cpi, MACROBLOCK *x, RD_COST *this_rdc, int mi_row, int mi_col, PRED_BUFFER *tmp, BLOCK_SIZE bsize, int reuse_inter_pred, PRED_BUFFER **this_mode_pred, unsigned int *var_y, unsigned int *sse_y, int force_smooth_filter, int *this_early_term, int *flag_preduv_computed, int use_model_yrd_large) { MACROBLOCKD *const xd = &x->e_mbd; MODE_INFO *const mi = xd->mi[0]; struct macroblockd_plane *const pd = &xd->plane[0]; const int bw = num_4x4_blocks_wide_lookup[bsize] << 2; int pf_rate[3] = { 0 }; int64_t pf_dist[3] = { 0 }; int curr_rate[3] = { 0 }; unsigned int pf_var[3] = { 0 }; unsigned int pf_sse[3] = { 0 }; TX_SIZE pf_tx_size[3] = { 0 }; int64_t best_cost = INT64_MAX; INTERP_FILTER best_filter = SWITCHABLE, filter; PRED_BUFFER *current_pred = *this_mode_pred; uint8_t skip_txfm = SKIP_TXFM_NONE; int best_early_term = 0; int best_flag_preduv_computed[2] = { 0 }; INTERP_FILTER filter_start = force_smooth_filter ? EIGHTTAP_SMOOTH : EIGHTTAP; INTERP_FILTER filter_end = EIGHTTAP_SMOOTH; for (filter = filter_start; filter <= filter_end; ++filter) { int64_t cost; mi->interp_filter = filter; vp9_build_inter_predictors_sby(xd, mi_row, mi_col, bsize); // For large partition blocks, extra testing is done. if (use_model_yrd_large) model_rd_for_sb_y_large(cpi, bsize, x, xd, &pf_rate[filter], &pf_dist[filter], &pf_var[filter], &pf_sse[filter], mi_row, mi_col, this_early_term, flag_preduv_computed); else model_rd_for_sb_y(cpi, bsize, x, xd, &pf_rate[filter], &pf_dist[filter], &pf_var[filter], &pf_sse[filter], 0); curr_rate[filter] = pf_rate[filter]; pf_rate[filter] += vp9_get_switchable_rate(cpi, xd); cost = RDCOST(x->rdmult, x->rddiv, pf_rate[filter], pf_dist[filter]); pf_tx_size[filter] = mi->tx_size; if (cost < best_cost) { best_filter = filter; best_cost = cost; skip_txfm = x->skip_txfm[0]; best_early_term = *this_early_term; best_flag_preduv_computed[0] = flag_preduv_computed[0]; best_flag_preduv_computed[1] = flag_preduv_computed[1]; if (reuse_inter_pred) { if (*this_mode_pred != current_pred) { free_pred_buffer(*this_mode_pred); *this_mode_pred = current_pred; } if (filter != filter_end) { current_pred = &tmp[get_pred_buffer(tmp, 3)]; pd->dst.buf = current_pred->data; pd->dst.stride = bw; } } } } if (reuse_inter_pred && *this_mode_pred != current_pred) free_pred_buffer(current_pred); mi->interp_filter = best_filter; mi->tx_size = pf_tx_size[best_filter]; this_rdc->rate = curr_rate[best_filter]; this_rdc->dist = pf_dist[best_filter]; *var_y = pf_var[best_filter]; *sse_y = pf_sse[best_filter]; x->skip_txfm[0] = skip_txfm; *this_early_term = best_early_term; flag_preduv_computed[0] = best_flag_preduv_computed[0]; flag_preduv_computed[1] = best_flag_preduv_computed[1]; if (reuse_inter_pred) { pd->dst.buf = (*this_mode_pred)->data; pd->dst.stride = (*this_mode_pred)->stride; } else if (best_filter < filter_end) { mi->interp_filter = best_filter; vp9_build_inter_predictors_sby(xd, mi_row, mi_col, bsize); } } static int search_new_mv(VP9_COMP *cpi, MACROBLOCK *x, int_mv frame_mv[][MAX_REF_FRAMES], MV_REFERENCE_FRAME ref_frame, int gf_temporal_ref, BLOCK_SIZE bsize, int mi_row, int mi_col, int best_pred_sad, int *rate_mv, unsigned int best_sse_sofar, RD_COST *best_rdc) { SVC *const svc = &cpi->svc; MACROBLOCKD *const xd = &x->e_mbd; MODE_INFO *const mi = xd->mi[0]; SPEED_FEATURES *const sf = &cpi->sf; if (ref_frame > LAST_FRAME && gf_temporal_ref && cpi->oxcf.rc_mode == VPX_CBR) { int tmp_sad; uint32_t dis; int cost_list[5] = { INT_MAX, INT_MAX, INT_MAX, INT_MAX, INT_MAX }; if (bsize < BLOCK_16X16) return -1; tmp_sad = vp9_int_pro_motion_estimation( cpi, x, bsize, mi_row, mi_col, &x->mbmi_ext->ref_mvs[ref_frame][0].as_mv); if (tmp_sad > x->pred_mv_sad[LAST_FRAME]) return -1; if (tmp_sad + (num_pels_log2_lookup[bsize] << 4) > best_pred_sad) return -1; frame_mv[NEWMV][ref_frame].as_int = mi->mv[0].as_int; *rate_mv = vp9_mv_bit_cost(&frame_mv[NEWMV][ref_frame].as_mv, &x->mbmi_ext->ref_mvs[ref_frame][0].as_mv, x->nmvjointcost, x->mvcost, MV_COST_WEIGHT); frame_mv[NEWMV][ref_frame].as_mv.row >>= 3; frame_mv[NEWMV][ref_frame].as_mv.col >>= 3; cpi->find_fractional_mv_step( x, &frame_mv[NEWMV][ref_frame].as_mv, &x->mbmi_ext->ref_mvs[ref_frame][0].as_mv, cpi->common.allow_high_precision_mv, x->errorperbit, &cpi->fn_ptr[bsize], cpi->sf.mv.subpel_force_stop, cpi->sf.mv.subpel_search_level, cond_cost_list(cpi, cost_list), x->nmvjointcost, x->mvcost, &dis, &x->pred_sse[ref_frame], NULL, 0, 0, cpi->sf.use_accurate_subpel_search); } else if (svc->use_base_mv && svc->spatial_layer_id) { if (frame_mv[NEWMV][ref_frame].as_int != INVALID_MV) { const int pre_stride = xd->plane[0].pre[0].stride; unsigned int base_mv_sse = UINT_MAX; int scale = (cpi->rc.avg_frame_low_motion > 60) ? 2 : 4; const uint8_t *const pre_buf = xd->plane[0].pre[0].buf + (frame_mv[NEWMV][ref_frame].as_mv.row >> 3) * pre_stride + (frame_mv[NEWMV][ref_frame].as_mv.col >> 3); cpi->fn_ptr[bsize].vf(x->plane[0].src.buf, x->plane[0].src.stride, pre_buf, pre_stride, &base_mv_sse); // Exit NEWMV search if base_mv is (0,0) && bsize < BLOCK_16x16, // for SVC encoding. if (cpi->use_svc && svc->use_base_mv && bsize < BLOCK_16X16 && frame_mv[NEWMV][ref_frame].as_mv.row == 0 && frame_mv[NEWMV][ref_frame].as_mv.col == 0) return -1; // Exit NEWMV search if base_mv_sse is large. if (sf->base_mv_aggressive && base_mv_sse > (best_sse_sofar << scale)) return -1; if (base_mv_sse < (best_sse_sofar << 1)) { // Base layer mv is good. // Exit NEWMV search if the base_mv is (0, 0) and sse is low, since // (0, 0) mode is already tested. unsigned int base_mv_sse_normalized = base_mv_sse >> (b_width_log2_lookup[bsize] + b_height_log2_lookup[bsize]); if (sf->base_mv_aggressive && base_mv_sse <= best_sse_sofar && base_mv_sse_normalized < 400 && frame_mv[NEWMV][ref_frame].as_mv.row == 0 && frame_mv[NEWMV][ref_frame].as_mv.col == 0) return -1; if (!combined_motion_search(cpi, x, bsize, mi_row, mi_col, &frame_mv[NEWMV][ref_frame], rate_mv, best_rdc->rdcost, 1)) { return -1; } } else if (!combined_motion_search(cpi, x, bsize, mi_row, mi_col, &frame_mv[NEWMV][ref_frame], rate_mv, best_rdc->rdcost, 0)) { return -1; } } else if (!combined_motion_search(cpi, x, bsize, mi_row, mi_col, &frame_mv[NEWMV][ref_frame], rate_mv, best_rdc->rdcost, 0)) { return -1; } } else if (!combined_motion_search(cpi, x, bsize, mi_row, mi_col, &frame_mv[NEWMV][ref_frame], rate_mv, best_rdc->rdcost, 0)) { return -1; } return 0; } static INLINE void init_best_pickmode(BEST_PICKMODE *bp) { bp->best_mode = ZEROMV; bp->best_ref_frame = LAST_FRAME; bp->best_tx_size = TX_SIZES; bp->best_intra_tx_size = TX_SIZES; bp->best_pred_filter = EIGHTTAP; bp->best_mode_skip_txfm = SKIP_TXFM_NONE; bp->best_second_ref_frame = NONE; bp->best_pred = NULL; } void vp9_pick_inter_mode(VP9_COMP *cpi, MACROBLOCK *x, TileDataEnc *tile_data, int mi_row, int mi_col, RD_COST *rd_cost, BLOCK_SIZE bsize, PICK_MODE_CONTEXT *ctx) { VP9_COMMON *const cm = &cpi->common; SPEED_FEATURES *const sf = &cpi->sf; SVC *const svc = &cpi->svc; MACROBLOCKD *const xd = &x->e_mbd; MODE_INFO *const mi = xd->mi[0]; struct macroblockd_plane *const pd = &xd->plane[0]; BEST_PICKMODE best_pickmode; MV_REFERENCE_FRAME ref_frame; MV_REFERENCE_FRAME usable_ref_frame, second_ref_frame; int_mv frame_mv[MB_MODE_COUNT][MAX_REF_FRAMES]; uint8_t mode_checked[MB_MODE_COUNT][MAX_REF_FRAMES]; struct buf_2d yv12_mb[4][MAX_MB_PLANE]; static const int flag_list[4] = { 0, VP9_LAST_FLAG, VP9_GOLD_FLAG, VP9_ALT_FLAG }; RD_COST this_rdc, best_rdc; // var_y and sse_y are saved to be used in skipping checking unsigned int var_y = UINT_MAX; unsigned int sse_y = UINT_MAX; const int intra_cost_penalty = vp9_get_intra_cost_penalty(cpi, bsize, cm->base_qindex, cm->y_dc_delta_q); int64_t inter_mode_thresh = RDCOST(x->rdmult, x->rddiv, intra_cost_penalty, 0); const int *const rd_threshes = cpi->rd.threshes[mi->segment_id][bsize]; const int sb_row = mi_row >> MI_BLOCK_SIZE_LOG2; int thresh_freq_fact_idx = (sb_row * BLOCK_SIZES + bsize) * MAX_MODES; const int *const rd_thresh_freq_fact = (cpi->sf.adaptive_rd_thresh_row_mt) ? &(tile_data->row_base_thresh_freq_fact[thresh_freq_fact_idx]) : tile_data->thresh_freq_fact[bsize]; #if CONFIG_VP9_TEMPORAL_DENOISING const int denoise_recheck_zeromv = 1; #endif INTERP_FILTER filter_ref; int pred_filter_search = cm->interp_filter == SWITCHABLE; int const_motion[MAX_REF_FRAMES] = { 0 }; const int bh = num_4x4_blocks_high_lookup[bsize] << 2; const int bw = num_4x4_blocks_wide_lookup[bsize] << 2; // For speed 6, the result of interp filter is reused later in actual encoding // process. // tmp[3] points to dst buffer, and the other 3 point to allocated buffers. PRED_BUFFER tmp[4]; DECLARE_ALIGNED(16, uint8_t, pred_buf[3 * 64 * 64] VPX_UNINITIALIZED); #if CONFIG_VP9_HIGHBITDEPTH DECLARE_ALIGNED(16, uint16_t, pred_buf_16[3 * 64 * 64] VPX_UNINITIALIZED); #endif struct buf_2d orig_dst = pd->dst; PRED_BUFFER *this_mode_pred = NULL; const int pixels_in_block = bh * bw; int reuse_inter_pred = cpi->sf.reuse_inter_pred_sby && ctx->pred_pixel_ready; int ref_frame_skip_mask = 0; int idx; int best_pred_sad = INT_MAX; int best_early_term = 0; int ref_frame_cost[MAX_REF_FRAMES]; int svc_force_zero_mode[3] = { 0 }; int perform_intra_pred = 1; int use_golden_nonzeromv = 1; int force_skip_low_temp_var = 0; int skip_ref_find_pred[4] = { 0 }; unsigned int sse_zeromv_normalized = UINT_MAX; unsigned int best_sse_sofar = UINT_MAX; int gf_temporal_ref = 0; int force_test_gf_zeromv = 0; #if CONFIG_VP9_TEMPORAL_DENOISING VP9_PICKMODE_CTX_DEN ctx_den; int64_t zero_last_cost_orig = INT64_MAX; int denoise_svc_pickmode = 1; #endif INTERP_FILTER filter_gf_svc = EIGHTTAP; MV_REFERENCE_FRAME inter_layer_ref = GOLDEN_FRAME; const struct segmentation *const seg = &cm->seg; int comp_modes = 0; int num_inter_modes = (cpi->use_svc) ? RT_INTER_MODES_SVC : RT_INTER_MODES; int flag_svc_subpel = 0; int svc_mv_col = 0; int svc_mv_row = 0; int no_scaling = 0; int large_block = 0; int use_model_yrd_large = 0; unsigned int thresh_svc_skip_golden = 500; unsigned int thresh_skip_golden = 500; int force_smooth_filter = cpi->sf.force_smooth_interpol; int scene_change_detected = cpi->rc.high_source_sad || (cpi->use_svc && cpi->svc.high_source_sad_superframe); init_best_pickmode(&best_pickmode); x->encode_breakout = seg->enabled ? cpi->segment_encode_breakout[mi->segment_id] : cpi->encode_breakout; x->source_variance = UINT_MAX; if (cpi->sf.default_interp_filter == BILINEAR) { best_pickmode.best_pred_filter = BILINEAR; filter_gf_svc = BILINEAR; } if (cpi->use_svc && svc->spatial_layer_id > 0) { int layer = LAYER_IDS_TO_IDX(svc->spatial_layer_id - 1, svc->temporal_layer_id, svc->number_temporal_layers); LAYER_CONTEXT *const lc = &svc->layer_context[layer]; if (lc->scaling_factor_num == lc->scaling_factor_den) no_scaling = 1; } if (svc->spatial_layer_id > 0 && (svc->high_source_sad_superframe || no_scaling)) thresh_svc_skip_golden = 0; // Lower the skip threshold if lower spatial layer is better quality relative // to current layer. else if (svc->spatial_layer_id > 0 && cm->base_qindex > 150 && cm->base_qindex > svc->lower_layer_qindex + 15) thresh_svc_skip_golden = 100; // Increase skip threshold if lower spatial layer is lower quality relative // to current layer. else if (svc->spatial_layer_id > 0 && cm->base_qindex < 140 && cm->base_qindex < svc->lower_layer_qindex - 20) thresh_svc_skip_golden = 1000; if (!cpi->use_svc || (svc->use_gf_temporal_ref_current_layer && !svc->layer_context[svc->temporal_layer_id].is_key_frame)) { struct scale_factors *const sf_last = &cm->frame_refs[LAST_FRAME - 1].sf; struct scale_factors *const sf_golden = &cm->frame_refs[GOLDEN_FRAME - 1].sf; gf_temporal_ref = 1; // For temporal long term prediction, check that the golden reference // is same scale as last reference, otherwise disable. if ((sf_last->x_scale_fp != sf_golden->x_scale_fp) || (sf_last->y_scale_fp != sf_golden->y_scale_fp)) { gf_temporal_ref = 0; } else { if (cpi->rc.avg_frame_low_motion > 70) thresh_svc_skip_golden = 500; else thresh_svc_skip_golden = 0; } } init_ref_frame_cost(cm, xd, ref_frame_cost); memset(&mode_checked[0][0], 0, MB_MODE_COUNT * MAX_REF_FRAMES); if (reuse_inter_pred) { int i; for (i = 0; i < 3; i++) { #if CONFIG_VP9_HIGHBITDEPTH if (cm->use_highbitdepth) tmp[i].data = CONVERT_TO_BYTEPTR(&pred_buf_16[pixels_in_block * i]); else tmp[i].data = &pred_buf[pixels_in_block * i]; #else tmp[i].data = &pred_buf[pixels_in_block * i]; #endif // CONFIG_VP9_HIGHBITDEPTH tmp[i].stride = bw; tmp[i].in_use = 0; } tmp[3].data = pd->dst.buf; tmp[3].stride = pd->dst.stride; tmp[3].in_use = 0; } x->skip_encode = cpi->sf.skip_encode_frame && x->q_index < QIDX_SKIP_THRESH; x->skip = 0; if (cpi->sf.cb_pred_filter_search) { const int bsl = mi_width_log2_lookup[bsize]; pred_filter_search = cm->interp_filter == SWITCHABLE ? (((mi_row + mi_col) >> bsl) + get_chessboard_index(cm->current_video_frame)) & 0x1 : 0; } // Instead of using vp9_get_pred_context_switchable_interp(xd) to assign // filter_ref, we use a less strict condition on assigning filter_ref. // This is to reduce the probabily of entering the flow of not assigning // filter_ref and then skip filter search. filter_ref = cm->interp_filter; if (cpi->sf.default_interp_filter != BILINEAR) { if (xd->above_mi && is_inter_block(xd->above_mi)) filter_ref = xd->above_mi->interp_filter; else if (xd->left_mi && is_inter_block(xd->left_mi)) filter_ref = xd->left_mi->interp_filter; } // initialize mode decisions vp9_rd_cost_reset(&best_rdc); vp9_rd_cost_reset(rd_cost); mi->sb_type = bsize; mi->ref_frame[0] = NONE; mi->ref_frame[1] = NONE; mi->tx_size = VPXMIN(max_txsize_lookup[bsize], tx_mode_to_biggest_tx_size[cm->tx_mode]); if (sf->short_circuit_flat_blocks || sf->limit_newmv_early_exit) { #if CONFIG_VP9_HIGHBITDEPTH if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) x->source_variance = vp9_high_get_sby_perpixel_variance( cpi, &x->plane[0].src, bsize, xd->bd); else #endif // CONFIG_VP9_HIGHBITDEPTH x->source_variance = vp9_get_sby_perpixel_variance(cpi, &x->plane[0].src, bsize); if (cpi->oxcf.content == VP9E_CONTENT_SCREEN && cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ && mi->segment_id > 0 && x->zero_temp_sad_source && x->source_variance == 0) { mi->segment_id = 0; vp9_init_plane_quantizers(cpi, x); } } #if CONFIG_VP9_TEMPORAL_DENOISING if (cpi->oxcf.noise_sensitivity > 0) { if (cpi->use_svc) denoise_svc_pickmode = vp9_denoise_svc_non_key(cpi); if (cpi->denoiser.denoising_level > kDenLowLow && denoise_svc_pickmode) vp9_denoiser_reset_frame_stats(ctx); } #endif if (cpi->rc.frames_since_golden == 0 && gf_temporal_ref && !cpi->rc.alt_ref_gf_group && !cpi->rc.last_frame_is_src_altref) { usable_ref_frame = LAST_FRAME; } else { usable_ref_frame = GOLDEN_FRAME; } if (cpi->oxcf.lag_in_frames > 0 && cpi->oxcf.rc_mode == VPX_VBR) { if (cpi->rc.alt_ref_gf_group || cpi->rc.is_src_frame_alt_ref) usable_ref_frame = ALTREF_FRAME; if (cpi->rc.is_src_frame_alt_ref) { skip_ref_find_pred[LAST_FRAME] = 1; skip_ref_find_pred[GOLDEN_FRAME] = 1; } if (!cm->show_frame) { if (cpi->rc.frames_since_key == 1) { usable_ref_frame = LAST_FRAME; skip_ref_find_pred[GOLDEN_FRAME] = 1; skip_ref_find_pred[ALTREF_FRAME] = 1; } } } // For svc mode, on spatial_layer_id > 0: if the reference has different scale // constrain the inter mode to only test zero motion. if (cpi->use_svc && svc->force_zero_mode_spatial_ref && svc->spatial_layer_id > 0 && !gf_temporal_ref) { if (cpi->ref_frame_flags & flag_list[LAST_FRAME]) { struct scale_factors *const sf = &cm->frame_refs[LAST_FRAME - 1].sf; if (vp9_is_scaled(sf)) { svc_force_zero_mode[LAST_FRAME - 1] = 1; inter_layer_ref = LAST_FRAME; } } if (cpi->ref_frame_flags & flag_list[GOLDEN_FRAME]) { struct scale_factors *const sf = &cm->frame_refs[GOLDEN_FRAME - 1].sf; if (vp9_is_scaled(sf)) { svc_force_zero_mode[GOLDEN_FRAME - 1] = 1; inter_layer_ref = GOLDEN_FRAME; } } } if (cpi->sf.short_circuit_low_temp_var) { force_skip_low_temp_var = get_force_skip_low_temp_var(&x->variance_low[0], mi_row, mi_col, bsize); // If force_skip_low_temp_var is set, and for short circuit mode = 1 and 3, // skip golden reference. if ((cpi->sf.short_circuit_low_temp_var == 1 || cpi->sf.short_circuit_low_temp_var == 3) && force_skip_low_temp_var) { usable_ref_frame = LAST_FRAME; } } if (sf->disable_golden_ref && (x->content_state_sb != kVeryHighSad || cpi->rc.avg_frame_low_motion < 60)) usable_ref_frame = LAST_FRAME; if (!((cpi->ref_frame_flags & flag_list[GOLDEN_FRAME]) && !svc_force_zero_mode[GOLDEN_FRAME - 1] && !force_skip_low_temp_var)) use_golden_nonzeromv = 0; if (cpi->oxcf.speed >= 8 && !cpi->use_svc && ((cpi->rc.frames_since_golden + 1) < x->last_sb_high_content || x->last_sb_high_content > 40 || cpi->rc.frames_since_golden > 120)) usable_ref_frame = LAST_FRAME; // Compound prediction modes: (0,0) on LAST/GOLDEN and ARF. if (cm->reference_mode == REFERENCE_MODE_SELECT && cpi->sf.use_compound_nonrd_pickmode && usable_ref_frame == ALTREF_FRAME) comp_modes = 2; // If the segment reference frame feature is enabled and it's set to GOLDEN // reference, then make sure we don't skip checking GOLDEN, this is to // prevent possibility of not picking any mode. if (segfeature_active(seg, mi->segment_id, SEG_LVL_REF_FRAME) && get_segdata(seg, mi->segment_id, SEG_LVL_REF_FRAME) == GOLDEN_FRAME) { usable_ref_frame = GOLDEN_FRAME; skip_ref_find_pred[GOLDEN_FRAME] = 0; thresh_svc_skip_golden = 0; } for (ref_frame = LAST_FRAME; ref_frame <= usable_ref_frame; ++ref_frame) { // Skip find_predictor if the reference frame is not in the // ref_frame_flags (i.e., not used as a reference for this frame). skip_ref_find_pred[ref_frame] = !(cpi->ref_frame_flags & flag_list[ref_frame]); if (!skip_ref_find_pred[ref_frame]) { find_predictors(cpi, x, ref_frame, frame_mv, const_motion, &ref_frame_skip_mask, flag_list, tile_data, mi_row, mi_col, yv12_mb, bsize, force_skip_low_temp_var, comp_modes > 0); } } if (cpi->use_svc || cpi->oxcf.speed <= 7 || bsize < BLOCK_32X32) x->sb_use_mv_part = 0; // Set the flag_svc_subpel to 1 for SVC if the lower spatial layer used // an averaging filter for downsampling (phase = 8). If so, we will test // a nonzero motion mode on the spatial reference. // The nonzero motion is half pixel shifted to left and top (-4, -4). if (cpi->use_svc && svc->spatial_layer_id > 0 && svc_force_zero_mode[inter_layer_ref - 1] && svc->downsample_filter_phase[svc->spatial_layer_id - 1] == 8 && !gf_temporal_ref) { svc_mv_col = -4; svc_mv_row = -4; flag_svc_subpel = 1; } // For SVC with quality layers, when QP of lower layer is lower // than current layer: force check of GF-ZEROMV before early exit // due to skip flag. if (svc->spatial_layer_id > 0 && no_scaling && (cpi->ref_frame_flags & flag_list[GOLDEN_FRAME]) && cm->base_qindex > svc->lower_layer_qindex + 10) force_test_gf_zeromv = 1; // For low motion content use x->sb_is_skin in addition to VeryHighSad // for setting large_block. large_block = (x->content_state_sb == kVeryHighSad || (x->sb_is_skin && cpi->rc.avg_frame_low_motion > 70) || cpi->oxcf.speed < 7) ? bsize > BLOCK_32X32 : bsize >= BLOCK_32X32; use_model_yrd_large = cpi->oxcf.rc_mode == VPX_CBR && large_block && !cyclic_refresh_segment_id_boosted(xd->mi[0]->segment_id) && cm->base_qindex; for (idx = 0; idx < num_inter_modes + comp_modes; ++idx) { int rate_mv = 0; int mode_rd_thresh; int mode_index; int i; int64_t this_sse; int is_skippable; int this_early_term = 0; int rd_computed = 0; int flag_preduv_computed[2] = { 0 }; int inter_mv_mode = 0; int skip_this_mv = 0; int comp_pred = 0; int force_mv_inter_layer = 0; PREDICTION_MODE this_mode; second_ref_frame = NONE; if (idx < num_inter_modes) { this_mode = ref_mode_set[idx].pred_mode; ref_frame = ref_mode_set[idx].ref_frame; if (cpi->use_svc) { this_mode = ref_mode_set_svc[idx].pred_mode; ref_frame = ref_mode_set_svc[idx].ref_frame; } } else { // Add (0,0) compound modes. this_mode = ZEROMV; ref_frame = LAST_FRAME; if (idx == num_inter_modes + comp_modes - 1) ref_frame = GOLDEN_FRAME; second_ref_frame = ALTREF_FRAME; comp_pred = 1; } if (ref_frame > usable_ref_frame) continue; if (skip_ref_find_pred[ref_frame]) continue; if (svc->previous_frame_is_intra_only) { if (ref_frame != LAST_FRAME || frame_mv[this_mode][ref_frame].as_int != 0) continue; } // If the segment reference frame feature is enabled then do nothing if the // current ref frame is not allowed. if (segfeature_active(seg, mi->segment_id, SEG_LVL_REF_FRAME) && get_segdata(seg, mi->segment_id, SEG_LVL_REF_FRAME) != (int)ref_frame) continue; if (flag_svc_subpel && ref_frame == inter_layer_ref) { force_mv_inter_layer = 1; // Only test mode if NEARESTMV/NEARMV is (svc_mv_col, svc_mv_row), // otherwise set NEWMV to (svc_mv_col, svc_mv_row). if (this_mode == NEWMV) { frame_mv[this_mode][ref_frame].as_mv.col = svc_mv_col; frame_mv[this_mode][ref_frame].as_mv.row = svc_mv_row; } else if (frame_mv[this_mode][ref_frame].as_mv.col != svc_mv_col || frame_mv[this_mode][ref_frame].as_mv.row != svc_mv_row) { continue; } } if (comp_pred) { if (!cpi->allow_comp_inter_inter) continue; // Skip compound inter modes if ARF is not available. if (!(cpi->ref_frame_flags & flag_list[second_ref_frame])) continue; // Do not allow compound prediction if the segment level reference frame // feature is in use as in this case there can only be one reference. if (segfeature_active(seg, mi->segment_id, SEG_LVL_REF_FRAME)) continue; } // For CBR mode: skip the golden reference search if sse of zeromv_last is // below threshold. if (ref_frame == GOLDEN_FRAME && cpi->oxcf.rc_mode == VPX_CBR && ((cpi->use_svc && sse_zeromv_normalized < thresh_svc_skip_golden) || (!cpi->use_svc && sse_zeromv_normalized < thresh_skip_golden))) continue; if (!(cpi->ref_frame_flags & flag_list[ref_frame])) continue; // For screen content. If zero_temp_sad source is computed: skip // non-zero motion check for stationary blocks. If the superblock is // non-stationary then for flat blocks skip the zero last check (keep golden // as it may be inter-layer reference). Otherwise (if zero_temp_sad_source // is not computed) skip non-zero motion check for flat blocks. // TODO(marpan): Compute zero_temp_sad_source per coding block. if (cpi->oxcf.content == VP9E_CONTENT_SCREEN) { if (cpi->compute_source_sad_onepass && cpi->sf.use_source_sad) { if ((frame_mv[this_mode][ref_frame].as_int != 0 && x->zero_temp_sad_source) || (frame_mv[this_mode][ref_frame].as_int == 0 && x->source_variance == 0 && ref_frame == LAST_FRAME && !x->zero_temp_sad_source)) continue; } else if (frame_mv[this_mode][ref_frame].as_int != 0 && x->source_variance == 0) { continue; } } if (!(cpi->sf.inter_mode_mask[bsize] & (1 << this_mode))) continue; if (cpi->oxcf.lag_in_frames > 0 && cpi->oxcf.rc_mode == VPX_VBR) { if (cpi->rc.is_src_frame_alt_ref && (ref_frame != ALTREF_FRAME || frame_mv[this_mode][ref_frame].as_int != 0)) continue; if (!cm->show_frame && ref_frame == ALTREF_FRAME && frame_mv[this_mode][ref_frame].as_int != 0) continue; if (cpi->rc.alt_ref_gf_group && cm->show_frame && cpi->rc.frames_since_golden > (cpi->rc.baseline_gf_interval >> 1) && ref_frame == GOLDEN_FRAME && frame_mv[this_mode][ref_frame].as_int != 0) continue; if (cpi->rc.alt_ref_gf_group && cm->show_frame && cpi->rc.frames_since_golden > 0 && cpi->rc.frames_since_golden < (cpi->rc.baseline_gf_interval >> 1) && ref_frame == ALTREF_FRAME && frame_mv[this_mode][ref_frame].as_int != 0) continue; } if (const_motion[ref_frame] && this_mode == NEARMV) continue; // Skip non-zeromv mode search for golden frame if force_skip_low_temp_var // is set. If nearestmv for golden frame is 0, zeromv mode will be skipped // later. if (!force_mv_inter_layer && force_skip_low_temp_var && ref_frame == GOLDEN_FRAME && frame_mv[this_mode][ref_frame].as_int != 0) { continue; } if (x->content_state_sb != kVeryHighSad && (cpi->sf.short_circuit_low_temp_var >= 2 || (cpi->sf.short_circuit_low_temp_var == 1 && bsize == BLOCK_64X64)) && force_skip_low_temp_var && ref_frame == LAST_FRAME && this_mode == NEWMV) { continue; } if (cpi->use_svc) { if (!force_mv_inter_layer && svc_force_zero_mode[ref_frame - 1] && frame_mv[this_mode][ref_frame].as_int != 0) continue; } // Disable this drop out case if the ref frame segment level feature is // enabled for this segment. This is to prevent the possibility that we end // up unable to pick any mode. if (!segfeature_active(seg, mi->segment_id, SEG_LVL_REF_FRAME)) { if (sf->reference_masking && !(frame_mv[this_mode][ref_frame].as_int == 0 && ref_frame == LAST_FRAME)) { if (usable_ref_frame < ALTREF_FRAME) { if (!force_skip_low_temp_var && usable_ref_frame > LAST_FRAME) { i = (ref_frame == LAST_FRAME) ? GOLDEN_FRAME : LAST_FRAME; if ((cpi->ref_frame_flags & flag_list[i])) if (x->pred_mv_sad[ref_frame] > (x->pred_mv_sad[i] << 1)) ref_frame_skip_mask |= (1 << ref_frame); } } else if (!cpi->rc.is_src_frame_alt_ref && !(frame_mv[this_mode][ref_frame].as_int == 0 && ref_frame == ALTREF_FRAME)) { int ref1 = (ref_frame == GOLDEN_FRAME) ? LAST_FRAME : GOLDEN_FRAME; int ref2 = (ref_frame == ALTREF_FRAME) ? LAST_FRAME : ALTREF_FRAME; if (((cpi->ref_frame_flags & flag_list[ref1]) && (x->pred_mv_sad[ref_frame] > (x->pred_mv_sad[ref1] << 1))) || ((cpi->ref_frame_flags & flag_list[ref2]) && (x->pred_mv_sad[ref_frame] > (x->pred_mv_sad[ref2] << 1)))) ref_frame_skip_mask |= (1 << ref_frame); } } if (ref_frame_skip_mask & (1 << ref_frame)) continue; } // Select prediction reference frames. for (i = 0; i < MAX_MB_PLANE; i++) { xd->plane[i].pre[0] = yv12_mb[ref_frame][i]; if (comp_pred) xd->plane[i].pre[1] = yv12_mb[second_ref_frame][i]; } mi->ref_frame[0] = ref_frame; mi->ref_frame[1] = second_ref_frame; set_ref_ptrs(cm, xd, ref_frame, second_ref_frame); mode_index = mode_idx[ref_frame][INTER_OFFSET(this_mode)]; mode_rd_thresh = best_pickmode.best_mode_skip_txfm ? rd_threshes[mode_index] << 1 : rd_threshes[mode_index]; // Increase mode_rd_thresh value for GOLDEN_FRAME for improved encoding // speed with little/no subjective quality loss. if (cpi->sf.bias_golden && ref_frame == GOLDEN_FRAME && cpi->rc.frames_since_golden > 4) mode_rd_thresh = mode_rd_thresh << 3; if ((cpi->sf.adaptive_rd_thresh_row_mt && rd_less_than_thresh_row_mt(best_rdc.rdcost, mode_rd_thresh, &rd_thresh_freq_fact[mode_index])) || (!cpi->sf.adaptive_rd_thresh_row_mt && rd_less_than_thresh(best_rdc.rdcost, mode_rd_thresh, &rd_thresh_freq_fact[mode_index]))) if (frame_mv[this_mode][ref_frame].as_int != 0) continue; if (this_mode == NEWMV && !force_mv_inter_layer) { if (search_new_mv(cpi, x, frame_mv, ref_frame, gf_temporal_ref, bsize, mi_row, mi_col, best_pred_sad, &rate_mv, best_sse_sofar, &best_rdc)) continue; } // TODO(jianj): Skipping the testing of (duplicate) non-zero motion vector // causes some regression, leave it for duplicate zero-mv for now, until // regression issue is resolved. for (inter_mv_mode = NEARESTMV; inter_mv_mode <= NEWMV; inter_mv_mode++) { if (inter_mv_mode == this_mode || comp_pred) continue; if (mode_checked[inter_mv_mode][ref_frame] && frame_mv[this_mode][ref_frame].as_int == frame_mv[inter_mv_mode][ref_frame].as_int && frame_mv[inter_mv_mode][ref_frame].as_int == 0) { skip_this_mv = 1; break; } } if (skip_this_mv) continue; // If use_golden_nonzeromv is false, NEWMV mode is skipped for golden, no // need to compute best_pred_sad which is only used to skip golden NEWMV. if (use_golden_nonzeromv && this_mode == NEWMV && ref_frame == LAST_FRAME && frame_mv[NEWMV][LAST_FRAME].as_int != INVALID_MV) { const int pre_stride = xd->plane[0].pre[0].stride; const uint8_t *const pre_buf = xd->plane[0].pre[0].buf + (frame_mv[NEWMV][LAST_FRAME].as_mv.row >> 3) * pre_stride + (frame_mv[NEWMV][LAST_FRAME].as_mv.col >> 3); best_pred_sad = cpi->fn_ptr[bsize].sdf( x->plane[0].src.buf, x->plane[0].src.stride, pre_buf, pre_stride); x->pred_mv_sad[LAST_FRAME] = best_pred_sad; } if (this_mode != NEARESTMV && !comp_pred && frame_mv[this_mode][ref_frame].as_int == frame_mv[NEARESTMV][ref_frame].as_int) continue; mi->mode = this_mode; mi->mv[0].as_int = frame_mv[this_mode][ref_frame].as_int; mi->mv[1].as_int = 0; // Search for the best prediction filter type, when the resulting // motion vector is at sub-pixel accuracy level for luma component, i.e., // the last three bits are all zeros. if (reuse_inter_pred) { if (!this_mode_pred) { this_mode_pred = &tmp[3]; } else { this_mode_pred = &tmp[get_pred_buffer(tmp, 3)]; pd->dst.buf = this_mode_pred->data; pd->dst.stride = bw; } } if ((this_mode == NEWMV || filter_ref == SWITCHABLE) && pred_filter_search && (ref_frame == LAST_FRAME || (ref_frame == GOLDEN_FRAME && !force_mv_inter_layer && (cpi->use_svc || cpi->oxcf.rc_mode == VPX_VBR))) && (((mi->mv[0].as_mv.row | mi->mv[0].as_mv.col) & 0x07) != 0)) { rd_computed = 1; search_filter_ref(cpi, x, &this_rdc, mi_row, mi_col, tmp, bsize, reuse_inter_pred, &this_mode_pred, &var_y, &sse_y, force_smooth_filter, &this_early_term, flag_preduv_computed, use_model_yrd_large); } else { mi->interp_filter = (filter_ref == SWITCHABLE) ? EIGHTTAP : filter_ref; if (cpi->use_svc && ref_frame == GOLDEN_FRAME && svc_force_zero_mode[ref_frame - 1]) mi->interp_filter = filter_gf_svc; vp9_build_inter_predictors_sby(xd, mi_row, mi_col, bsize); // For large partition blocks, extra testing is done. if (use_model_yrd_large) { rd_computed = 1; model_rd_for_sb_y_large(cpi, bsize, x, xd, &this_rdc.rate, &this_rdc.dist, &var_y, &sse_y, mi_row, mi_col, &this_early_term, flag_preduv_computed); } else { rd_computed = 1; model_rd_for_sb_y(cpi, bsize, x, xd, &this_rdc.rate, &this_rdc.dist, &var_y, &sse_y, 0); } // Save normalized sse (between current and last frame) for (0, 0) motion. if (ref_frame == LAST_FRAME && frame_mv[this_mode][ref_frame].as_int == 0) { sse_zeromv_normalized = sse_y >> (b_width_log2_lookup[bsize] + b_height_log2_lookup[bsize]); } if (sse_y < best_sse_sofar) best_sse_sofar = sse_y; } if (!this_early_term) { this_sse = (int64_t)sse_y; block_yrd(cpi, x, &this_rdc, &is_skippable, &this_sse, bsize, VPXMIN(mi->tx_size, TX_16X16), rd_computed, 0); x->skip_txfm[0] = is_skippable; if (is_skippable) { this_rdc.rate = vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1); } else { if (RDCOST(x->rdmult, x->rddiv, this_rdc.rate, this_rdc.dist) < RDCOST(x->rdmult, x->rddiv, 0, this_sse)) { this_rdc.rate += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 0); } else { this_rdc.rate = vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1); this_rdc.dist = this_sse; x->skip_txfm[0] = SKIP_TXFM_AC_DC; } } if (cm->interp_filter == SWITCHABLE) { if ((mi->mv[0].as_mv.row | mi->mv[0].as_mv.col) & 0x07) this_rdc.rate += vp9_get_switchable_rate(cpi, xd); } } else { if (cm->interp_filter == SWITCHABLE) { if ((mi->mv[0].as_mv.row | mi->mv[0].as_mv.col) & 0x07) this_rdc.rate += vp9_get_switchable_rate(cpi, xd); } this_rdc.rate += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1); } if (!this_early_term && (x->color_sensitivity[0] || x->color_sensitivity[1])) { RD_COST rdc_uv; const BLOCK_SIZE uv_bsize = get_plane_block_size(bsize, &xd->plane[1]); if (x->color_sensitivity[0] && !flag_preduv_computed[0]) { vp9_build_inter_predictors_sbp(xd, mi_row, mi_col, bsize, 1); flag_preduv_computed[0] = 1; } if (x->color_sensitivity[1] && !flag_preduv_computed[1]) { vp9_build_inter_predictors_sbp(xd, mi_row, mi_col, bsize, 2); flag_preduv_computed[1] = 1; } model_rd_for_sb_uv(cpi, uv_bsize, x, xd, &rdc_uv, &var_y, &sse_y, 1, 2); this_rdc.rate += rdc_uv.rate; this_rdc.dist += rdc_uv.dist; } this_rdc.rate += rate_mv; this_rdc.rate += cpi->inter_mode_cost[x->mbmi_ext->mode_context[ref_frame]] [INTER_OFFSET(this_mode)]; // TODO(marpan): Add costing for compound mode. this_rdc.rate += ref_frame_cost[ref_frame]; this_rdc.rdcost = RDCOST(x->rdmult, x->rddiv, this_rdc.rate, this_rdc.dist); // Bias against NEWMV that is very different from its neighbors, and bias // to small motion-lastref for noisy input. if (cpi->oxcf.rc_mode == VPX_CBR && cpi->oxcf.speed >= 5 && cpi->oxcf.content != VP9E_CONTENT_SCREEN) { vp9_NEWMV_diff_bias(&cpi->noise_estimate, xd, this_mode, &this_rdc, bsize, frame_mv[this_mode][ref_frame].as_mv.row, frame_mv[this_mode][ref_frame].as_mv.col, ref_frame == LAST_FRAME, x->lowvar_highsumdiff, x->sb_is_skin); } // Skipping checking: test to see if this block can be reconstructed by // prediction only. if (cpi->allow_encode_breakout && !xd->lossless && !scene_change_detected && !svc->high_num_blocks_with_motion) { encode_breakout_test(cpi, x, bsize, mi_row, mi_col, ref_frame, this_mode, var_y, sse_y, yv12_mb, &this_rdc.rate, &this_rdc.dist, flag_preduv_computed); if (x->skip) { this_rdc.rate += rate_mv; this_rdc.rdcost = RDCOST(x->rdmult, x->rddiv, this_rdc.rate, this_rdc.dist); } } // On spatially flat blocks for screne content: bias against zero-last // if the sse_y is non-zero. Only on scene change or high motion frames. if (cpi->oxcf.content == VP9E_CONTENT_SCREEN && (scene_change_detected || svc->high_num_blocks_with_motion) && ref_frame == LAST_FRAME && frame_mv[this_mode][ref_frame].as_int == 0 && svc->spatial_layer_id == 0 && x->source_variance == 0 && sse_y > 0) { this_rdc.rdcost = this_rdc.rdcost << 2; } #if CONFIG_VP9_TEMPORAL_DENOISING if (cpi->oxcf.noise_sensitivity > 0 && denoise_svc_pickmode && cpi->denoiser.denoising_level > kDenLowLow) { vp9_denoiser_update_frame_stats(mi, sse_y, this_mode, ctx); // Keep track of zero_last cost. if (ref_frame == LAST_FRAME && frame_mv[this_mode][ref_frame].as_int == 0) zero_last_cost_orig = this_rdc.rdcost; } #else (void)ctx; #endif mode_checked[this_mode][ref_frame] = 1; if (this_rdc.rdcost < best_rdc.rdcost || x->skip) { best_rdc = this_rdc; best_early_term = this_early_term; best_pickmode.best_mode = this_mode; best_pickmode.best_pred_filter = mi->interp_filter; best_pickmode.best_tx_size = mi->tx_size; best_pickmode.best_ref_frame = ref_frame; best_pickmode.best_mode_skip_txfm = x->skip_txfm[0]; best_pickmode.best_second_ref_frame = second_ref_frame; if (reuse_inter_pred) { free_pred_buffer(best_pickmode.best_pred); best_pickmode.best_pred = this_mode_pred; } } else { if (reuse_inter_pred) free_pred_buffer(this_mode_pred); } if (x->skip && (!force_test_gf_zeromv || mode_checked[ZEROMV][GOLDEN_FRAME])) break; // If early termination flag is 1 and at least 2 modes are checked, // the mode search is terminated. if (best_early_term && idx > 0 && !scene_change_detected && (!force_test_gf_zeromv || mode_checked[ZEROMV][GOLDEN_FRAME])) { x->skip = 1; break; } } mi->mode = best_pickmode.best_mode; mi->interp_filter = best_pickmode.best_pred_filter; mi->tx_size = best_pickmode.best_tx_size; mi->ref_frame[0] = best_pickmode.best_ref_frame; mi->mv[0].as_int = frame_mv[best_pickmode.best_mode][best_pickmode.best_ref_frame].as_int; xd->mi[0]->bmi[0].as_mv[0].as_int = mi->mv[0].as_int; x->skip_txfm[0] = best_pickmode.best_mode_skip_txfm; mi->ref_frame[1] = best_pickmode.best_second_ref_frame; // For spatial enhancemanent layer: perform intra prediction only if base // layer is chosen as the reference. Always perform intra prediction if // LAST is the only reference, or is_key_frame is set, or on base // temporal layer. if (svc->spatial_layer_id && !gf_temporal_ref) { perform_intra_pred = svc->temporal_layer_id == 0 || svc->layer_context[svc->temporal_layer_id].is_key_frame || !(cpi->ref_frame_flags & flag_list[GOLDEN_FRAME]) || (!svc->layer_context[svc->temporal_layer_id].is_key_frame && svc_force_zero_mode[best_pickmode.best_ref_frame - 1]); inter_mode_thresh = (inter_mode_thresh << 1) + inter_mode_thresh; } if ((cpi->oxcf.lag_in_frames > 0 && cpi->oxcf.rc_mode == VPX_VBR && cpi->rc.is_src_frame_alt_ref) || svc->previous_frame_is_intra_only) perform_intra_pred = 0; // If the segment reference frame feature is enabled and set then // skip the intra prediction. if (segfeature_active(seg, mi->segment_id, SEG_LVL_REF_FRAME) && get_segdata(seg, mi->segment_id, SEG_LVL_REF_FRAME) > 0) perform_intra_pred = 0; // Perform intra prediction search, if the best SAD is above a certain // threshold. if (best_rdc.rdcost == INT64_MAX || (cpi->oxcf.content == VP9E_CONTENT_SCREEN && x->source_variance == 0) || (scene_change_detected && perform_intra_pred) || ((!force_skip_low_temp_var || bsize < BLOCK_32X32 || x->content_state_sb == kVeryHighSad) && perform_intra_pred && !x->skip && best_rdc.rdcost > inter_mode_thresh && bsize <= cpi->sf.max_intra_bsize && !x->skip_low_source_sad && !x->lowvar_highsumdiff)) { struct estimate_block_intra_args args = { cpi, x, DC_PRED, 1, 0 }; int64_t this_sse = INT64_MAX; int i; PRED_BUFFER *const best_pred = best_pickmode.best_pred; TX_SIZE intra_tx_size = VPXMIN(max_txsize_lookup[bsize], tx_mode_to_biggest_tx_size[cpi->common.tx_mode]); if (reuse_inter_pred && best_pred != NULL) { if (best_pred->data == orig_dst.buf) { this_mode_pred = &tmp[get_pred_buffer(tmp, 3)]; #if CONFIG_VP9_HIGHBITDEPTH if (cm->use_highbitdepth) vpx_highbd_convolve_copy( CONVERT_TO_SHORTPTR(best_pred->data), best_pred->stride, CONVERT_TO_SHORTPTR(this_mode_pred->data), this_mode_pred->stride, NULL, 0, 0, 0, 0, bw, bh, xd->bd); else vpx_convolve_copy(best_pred->data, best_pred->stride, this_mode_pred->data, this_mode_pred->stride, NULL, 0, 0, 0, 0, bw, bh); #else vpx_convolve_copy(best_pred->data, best_pred->stride, this_mode_pred->data, this_mode_pred->stride, NULL, 0, 0, 0, 0, bw, bh); #endif // CONFIG_VP9_HIGHBITDEPTH best_pickmode.best_pred = this_mode_pred; } } pd->dst = orig_dst; for (i = 0; i < 4; ++i) { const PREDICTION_MODE this_mode = intra_mode_list[i]; THR_MODES mode_index = mode_idx[INTRA_FRAME][mode_offset(this_mode)]; int mode_rd_thresh = rd_threshes[mode_index]; // For spatially flat blocks, under short_circuit_flat_blocks flag: // only check DC mode for stationary blocks, otherwise also check // H and V mode. if (sf->short_circuit_flat_blocks && x->source_variance == 0 && ((x->zero_temp_sad_source && this_mode != DC_PRED) || i > 2)) { continue; } if (!((1 << this_mode) & cpi->sf.intra_y_mode_bsize_mask[bsize])) continue; if (cpi->sf.rt_intra_dc_only_low_content && this_mode != DC_PRED && x->content_state_sb != kVeryHighSad) continue; if ((cpi->sf.adaptive_rd_thresh_row_mt && rd_less_than_thresh_row_mt(best_rdc.rdcost, mode_rd_thresh, &rd_thresh_freq_fact[mode_index])) || (!cpi->sf.adaptive_rd_thresh_row_mt && rd_less_than_thresh(best_rdc.rdcost, mode_rd_thresh, &rd_thresh_freq_fact[mode_index]))) { // Avoid this early exit for screen on base layer, for scene // changes or high motion frames. if (cpi->oxcf.content != VP9E_CONTENT_SCREEN || svc->spatial_layer_id > 0 || (!scene_change_detected && !svc->high_num_blocks_with_motion)) continue; } mi->mode = this_mode; mi->ref_frame[0] = INTRA_FRAME; this_rdc.dist = this_rdc.rate = 0; args.mode = this_mode; args.skippable = 1; args.rdc = &this_rdc; mi->tx_size = intra_tx_size; compute_intra_yprediction(this_mode, bsize, x, xd); model_rd_for_sb_y(cpi, bsize, x, xd, &this_rdc.rate, &this_rdc.dist, &var_y, &sse_y, 1); block_yrd(cpi, x, &this_rdc, &args.skippable, &this_sse, bsize, VPXMIN(mi->tx_size, TX_16X16), 1, 1); // Check skip cost here since skippable is not set for for uv, this // mirrors the behavior used by inter if (args.skippable) { x->skip_txfm[0] = SKIP_TXFM_AC_DC; this_rdc.rate = vp9_cost_bit(vp9_get_skip_prob(&cpi->common, xd), 1); } else { x->skip_txfm[0] = SKIP_TXFM_NONE; this_rdc.rate += vp9_cost_bit(vp9_get_skip_prob(&cpi->common, xd), 0); } // Inter and intra RD will mismatch in scale for non-screen content. if (cpi->oxcf.content == VP9E_CONTENT_SCREEN) { if (x->color_sensitivity[0]) vp9_foreach_transformed_block_in_plane(xd, bsize, 1, estimate_block_intra, &args); if (x->color_sensitivity[1]) vp9_foreach_transformed_block_in_plane(xd, bsize, 2, estimate_block_intra, &args); } this_rdc.rate += cpi->mbmode_cost[this_mode]; this_rdc.rate += ref_frame_cost[INTRA_FRAME]; this_rdc.rate += intra_cost_penalty; this_rdc.rdcost = RDCOST(x->rdmult, x->rddiv, this_rdc.rate, this_rdc.dist); if (this_rdc.rdcost < best_rdc.rdcost) { best_rdc = this_rdc; best_pickmode.best_mode = this_mode; best_pickmode.best_intra_tx_size = mi->tx_size; best_pickmode.best_ref_frame = INTRA_FRAME; best_pickmode.best_second_ref_frame = NONE; mi->uv_mode = this_mode; mi->mv[0].as_int = INVALID_MV; mi->mv[1].as_int = INVALID_MV; best_pickmode.best_mode_skip_txfm = x->skip_txfm[0]; } } // Reset mb_mode_info to the best inter mode. if (best_pickmode.best_ref_frame != INTRA_FRAME) { mi->tx_size = best_pickmode.best_tx_size; } else { mi->tx_size = best_pickmode.best_intra_tx_size; } } pd->dst = orig_dst; mi->mode = best_pickmode.best_mode; mi->ref_frame[0] = best_pickmode.best_ref_frame; mi->ref_frame[1] = best_pickmode.best_second_ref_frame; x->skip_txfm[0] = best_pickmode.best_mode_skip_txfm; if (!is_inter_block(mi)) { mi->interp_filter = SWITCHABLE_FILTERS; } if (reuse_inter_pred && best_pickmode.best_pred != NULL) { PRED_BUFFER *const best_pred = best_pickmode.best_pred; if (best_pred->data != orig_dst.buf && is_inter_mode(mi->mode)) { #if CONFIG_VP9_HIGHBITDEPTH if (cm->use_highbitdepth) vpx_highbd_convolve_copy( CONVERT_TO_SHORTPTR(best_pred->data), best_pred->stride, CONVERT_TO_SHORTPTR(pd->dst.buf), pd->dst.stride, NULL, 0, 0, 0, 0, bw, bh, xd->bd); else vpx_convolve_copy(best_pred->data, best_pred->stride, pd->dst.buf, pd->dst.stride, NULL, 0, 0, 0, 0, bw, bh); #else vpx_convolve_copy(best_pred->data, best_pred->stride, pd->dst.buf, pd->dst.stride, NULL, 0, 0, 0, 0, bw, bh); #endif // CONFIG_VP9_HIGHBITDEPTH } } #if CONFIG_VP9_TEMPORAL_DENOISING if (cpi->oxcf.noise_sensitivity > 0 && cpi->resize_pending == 0 && denoise_svc_pickmode && cpi->denoiser.denoising_level > kDenLowLow && cpi->denoiser.reset == 0) { VP9_DENOISER_DECISION decision = COPY_BLOCK; ctx->sb_skip_denoising = 0; // TODO(marpan): There is an issue with denoising when the // superblock partitioning scheme is based on the pickmode. // Remove this condition when the issue is resolved. if (x->sb_pickmode_part) ctx->sb_skip_denoising = 1; vp9_pickmode_ctx_den_update(&ctx_den, zero_last_cost_orig, ref_frame_cost, frame_mv, reuse_inter_pred, &best_pickmode); vp9_denoiser_denoise(cpi, x, mi_row, mi_col, bsize, ctx, &decision, gf_temporal_ref); if (denoise_recheck_zeromv) recheck_zeromv_after_denoising(cpi, mi, x, xd, decision, &ctx_den, yv12_mb, &best_rdc, bsize, mi_row, mi_col); best_pickmode.best_ref_frame = ctx_den.best_ref_frame; } #endif if (best_pickmode.best_ref_frame == ALTREF_FRAME || best_pickmode.best_second_ref_frame == ALTREF_FRAME) x->arf_frame_usage++; else if (best_pickmode.best_ref_frame != INTRA_FRAME) x->lastgolden_frame_usage++; if (cpi->sf.adaptive_rd_thresh) { THR_MODES best_mode_idx = mode_idx[best_pickmode.best_ref_frame][mode_offset(mi->mode)]; if (best_pickmode.best_ref_frame == INTRA_FRAME) { // Only consider the modes that are included in the intra_mode_list. int intra_modes = sizeof(intra_mode_list) / sizeof(PREDICTION_MODE); int i; // TODO(yunqingwang): Check intra mode mask and only update freq_fact // for those valid modes. for (i = 0; i < intra_modes; i++) { if (cpi->sf.adaptive_rd_thresh_row_mt) update_thresh_freq_fact_row_mt(cpi, tile_data, x->source_variance, thresh_freq_fact_idx, INTRA_FRAME, best_mode_idx, intra_mode_list[i]); else update_thresh_freq_fact(cpi, tile_data, x->source_variance, bsize, INTRA_FRAME, best_mode_idx, intra_mode_list[i]); } } else { for (ref_frame = LAST_FRAME; ref_frame <= GOLDEN_FRAME; ++ref_frame) { PREDICTION_MODE this_mode; if (best_pickmode.best_ref_frame != ref_frame) continue; for (this_mode = NEARESTMV; this_mode <= NEWMV; ++this_mode) { if (cpi->sf.adaptive_rd_thresh_row_mt) update_thresh_freq_fact_row_mt(cpi, tile_data, x->source_variance, thresh_freq_fact_idx, ref_frame, best_mode_idx, this_mode); else update_thresh_freq_fact(cpi, tile_data, x->source_variance, bsize, ref_frame, best_mode_idx, this_mode); } } } } *rd_cost = best_rdc; } void vp9_pick_inter_mode_sub8x8(VP9_COMP *cpi, MACROBLOCK *x, int mi_row, int mi_col, RD_COST *rd_cost, BLOCK_SIZE bsize, PICK_MODE_CONTEXT *ctx) { VP9_COMMON *const cm = &cpi->common; SPEED_FEATURES *const sf = &cpi->sf; MACROBLOCKD *const xd = &x->e_mbd; MODE_INFO *const mi = xd->mi[0]; MB_MODE_INFO_EXT *const mbmi_ext = x->mbmi_ext; const struct segmentation *const seg = &cm->seg; MV_REFERENCE_FRAME ref_frame, second_ref_frame = NONE; MV_REFERENCE_FRAME best_ref_frame = NONE; unsigned char segment_id = mi->segment_id; struct buf_2d yv12_mb[4][MAX_MB_PLANE]; static const int flag_list[4] = { 0, VP9_LAST_FLAG, VP9_GOLD_FLAG, VP9_ALT_FLAG }; int64_t best_rd = INT64_MAX; b_mode_info bsi[MAX_REF_FRAMES][4]; int ref_frame_skip_mask = 0; const int num_4x4_blocks_wide = num_4x4_blocks_wide_lookup[bsize]; const int num_4x4_blocks_high = num_4x4_blocks_high_lookup[bsize]; int idx, idy; x->skip_encode = sf->skip_encode_frame && x->q_index < QIDX_SKIP_THRESH; ctx->pred_pixel_ready = 0; for (ref_frame = LAST_FRAME; ref_frame <= GOLDEN_FRAME; ++ref_frame) { const YV12_BUFFER_CONFIG *yv12 = get_ref_frame_buffer(cpi, ref_frame); int_mv dummy_mv[2]; x->pred_mv_sad[ref_frame] = INT_MAX; if ((cpi->ref_frame_flags & flag_list[ref_frame]) && (yv12 != NULL)) { int_mv *const candidates = mbmi_ext->ref_mvs[ref_frame]; const struct scale_factors *const sf = &cm->frame_refs[ref_frame - 1].sf; vp9_setup_pred_block(xd, yv12_mb[ref_frame], yv12, mi_row, mi_col, sf, sf); vp9_find_mv_refs(cm, xd, xd->mi[0], ref_frame, candidates, mi_row, mi_col, mbmi_ext->mode_context); vp9_find_best_ref_mvs(xd, cm->allow_high_precision_mv, candidates, &dummy_mv[0], &dummy_mv[1]); } else { ref_frame_skip_mask |= (1 << ref_frame); } } mi->sb_type = bsize; mi->tx_size = TX_4X4; mi->uv_mode = DC_PRED; mi->ref_frame[0] = LAST_FRAME; mi->ref_frame[1] = NONE; mi->interp_filter = cm->interp_filter == SWITCHABLE ? EIGHTTAP : cm->interp_filter; for (ref_frame = LAST_FRAME; ref_frame <= GOLDEN_FRAME; ++ref_frame) { int64_t this_rd = 0; int plane; if (ref_frame_skip_mask & (1 << ref_frame)) continue; #if CONFIG_BETTER_HW_COMPATIBILITY if ((bsize == BLOCK_8X4 || bsize == BLOCK_4X8) && ref_frame > INTRA_FRAME && vp9_is_scaled(&cm->frame_refs[ref_frame - 1].sf)) continue; #endif // TODO(jingning, agrange): Scaling reference frame not supported for // sub8x8 blocks. Is this supported now? if (ref_frame > INTRA_FRAME && vp9_is_scaled(&cm->frame_refs[ref_frame - 1].sf)) continue; // If the segment reference frame feature is enabled.... // then do nothing if the current ref frame is not allowed.. if (segfeature_active(seg, segment_id, SEG_LVL_REF_FRAME) && get_segdata(seg, segment_id, SEG_LVL_REF_FRAME) != (int)ref_frame) continue; mi->ref_frame[0] = ref_frame; x->skip = 0; set_ref_ptrs(cm, xd, ref_frame, second_ref_frame); // Select prediction reference frames. for (plane = 0; plane < MAX_MB_PLANE; plane++) xd->plane[plane].pre[0] = yv12_mb[ref_frame][plane]; for (idy = 0; idy < 2; idy += num_4x4_blocks_high) { for (idx = 0; idx < 2; idx += num_4x4_blocks_wide) { int_mv b_mv[MB_MODE_COUNT]; int64_t b_best_rd = INT64_MAX; const int i = idy * 2 + idx; PREDICTION_MODE this_mode; RD_COST this_rdc; unsigned int var_y, sse_y; struct macroblock_plane *p = &x->plane[0]; struct macroblockd_plane *pd = &xd->plane[0]; const struct buf_2d orig_src = p->src; const struct buf_2d orig_dst = pd->dst; struct buf_2d orig_pre[2]; memcpy(orig_pre, xd->plane[0].pre, sizeof(orig_pre)); // set buffer pointers for sub8x8 motion search. p->src.buf = &p->src.buf[vp9_raster_block_offset(BLOCK_8X8, i, p->src.stride)]; pd->dst.buf = &pd->dst.buf[vp9_raster_block_offset(BLOCK_8X8, i, pd->dst.stride)]; pd->pre[0].buf = &pd->pre[0] .buf[vp9_raster_block_offset(BLOCK_8X8, i, pd->pre[0].stride)]; b_mv[ZEROMV].as_int = 0; b_mv[NEWMV].as_int = INVALID_MV; vp9_append_sub8x8_mvs_for_idx(cm, xd, i, 0, mi_row, mi_col, &b_mv[NEARESTMV], &b_mv[NEARMV], mbmi_ext->mode_context); for (this_mode = NEARESTMV; this_mode <= NEWMV; ++this_mode) { int b_rate = 0; xd->mi[0]->bmi[i].as_mv[0].as_int = b_mv[this_mode].as_int; if (this_mode == NEWMV) { const int step_param = cpi->sf.mv.fullpel_search_step_param; MV mvp_full; MV tmp_mv; int cost_list[5]; const MvLimits tmp_mv_limits = x->mv_limits; uint32_t dummy_dist; if (i == 0) { mvp_full.row = b_mv[NEARESTMV].as_mv.row >> 3; mvp_full.col = b_mv[NEARESTMV].as_mv.col >> 3; } else { mvp_full.row = xd->mi[0]->bmi[0].as_mv[0].as_mv.row >> 3; mvp_full.col = xd->mi[0]->bmi[0].as_mv[0].as_mv.col >> 3; } vp9_set_mv_search_range(&x->mv_limits, &mbmi_ext->ref_mvs[ref_frame][0].as_mv); vp9_full_pixel_search( cpi, x, bsize, &mvp_full, step_param, cpi->sf.mv.search_method, x->sadperbit4, cond_cost_list(cpi, cost_list), &mbmi_ext->ref_mvs[ref_frame][0].as_mv, &tmp_mv, INT_MAX, 0); x->mv_limits = tmp_mv_limits; // calculate the bit cost on motion vector mvp_full.row = tmp_mv.row * 8; mvp_full.col = tmp_mv.col * 8; b_rate += vp9_mv_bit_cost( &mvp_full, &mbmi_ext->ref_mvs[ref_frame][0].as_mv, x->nmvjointcost, x->mvcost, MV_COST_WEIGHT); b_rate += cpi->inter_mode_cost[x->mbmi_ext->mode_context[ref_frame]] [INTER_OFFSET(NEWMV)]; if (RDCOST(x->rdmult, x->rddiv, b_rate, 0) > b_best_rd) continue; cpi->find_fractional_mv_step( x, &tmp_mv, &mbmi_ext->ref_mvs[ref_frame][0].as_mv, cpi->common.allow_high_precision_mv, x->errorperbit, &cpi->fn_ptr[bsize], cpi->sf.mv.subpel_force_stop, cpi->sf.mv.subpel_search_level, cond_cost_list(cpi, cost_list), x->nmvjointcost, x->mvcost, &dummy_dist, &x->pred_sse[ref_frame], NULL, 0, 0, cpi->sf.use_accurate_subpel_search); xd->mi[0]->bmi[i].as_mv[0].as_mv = tmp_mv; } else { b_rate += cpi->inter_mode_cost[x->mbmi_ext->mode_context[ref_frame]] [INTER_OFFSET(this_mode)]; } #if CONFIG_VP9_HIGHBITDEPTH if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { vp9_highbd_build_inter_predictor( CONVERT_TO_SHORTPTR(pd->pre[0].buf), pd->pre[0].stride, CONVERT_TO_SHORTPTR(pd->dst.buf), pd->dst.stride, &xd->mi[0]->bmi[i].as_mv[0].as_mv, &xd->block_refs[0]->sf, 4 * num_4x4_blocks_wide, 4 * num_4x4_blocks_high, 0, vp9_filter_kernels[mi->interp_filter], MV_PRECISION_Q3, mi_col * MI_SIZE + 4 * (i & 0x01), mi_row * MI_SIZE + 4 * (i >> 1), xd->bd); } else { #endif vp9_build_inter_predictor( pd->pre[0].buf, pd->pre[0].stride, pd->dst.buf, pd->dst.stride, &xd->mi[0]->bmi[i].as_mv[0].as_mv, &xd->block_refs[0]->sf, 4 * num_4x4_blocks_wide, 4 * num_4x4_blocks_high, 0, vp9_filter_kernels[mi->interp_filter], MV_PRECISION_Q3, mi_col * MI_SIZE + 4 * (i & 0x01), mi_row * MI_SIZE + 4 * (i >> 1)); #if CONFIG_VP9_HIGHBITDEPTH } #endif model_rd_for_sb_y(cpi, bsize, x, xd, &this_rdc.rate, &this_rdc.dist, &var_y, &sse_y, 0); this_rdc.rate += b_rate; this_rdc.rdcost = RDCOST(x->rdmult, x->rddiv, this_rdc.rate, this_rdc.dist); if (this_rdc.rdcost < b_best_rd) { b_best_rd = this_rdc.rdcost; bsi[ref_frame][i].as_mode = this_mode; bsi[ref_frame][i].as_mv[0].as_mv = xd->mi[0]->bmi[i].as_mv[0].as_mv; } } // mode search // restore source and prediction buffer pointers. p->src = orig_src; pd->pre[0] = orig_pre[0]; pd->dst = orig_dst; this_rd += b_best_rd; xd->mi[0]->bmi[i] = bsi[ref_frame][i]; if (num_4x4_blocks_wide > 1) xd->mi[0]->bmi[i + 1] = xd->mi[0]->bmi[i]; if (num_4x4_blocks_high > 1) xd->mi[0]->bmi[i + 2] = xd->mi[0]->bmi[i]; } } // loop through sub8x8 blocks if (this_rd < best_rd) { best_rd = this_rd; best_ref_frame = ref_frame; } } // reference frames mi->tx_size = TX_4X4; mi->ref_frame[0] = best_ref_frame; for (idy = 0; idy < 2; idy += num_4x4_blocks_high) { for (idx = 0; idx < 2; idx += num_4x4_blocks_wide) { const int block = idy * 2 + idx; xd->mi[0]->bmi[block] = bsi[best_ref_frame][block]; if (num_4x4_blocks_wide > 1) xd->mi[0]->bmi[block + 1] = bsi[best_ref_frame][block]; if (num_4x4_blocks_high > 1) xd->mi[0]->bmi[block + 2] = bsi[best_ref_frame][block]; } } mi->mode = xd->mi[0]->bmi[3].as_mode; ctx->mic = *(xd->mi[0]); ctx->mbmi_ext = *x->mbmi_ext; ctx->skip_txfm[0] = SKIP_TXFM_NONE; ctx->skip = 0; // Dummy assignment for speed -5. No effect in speed -6. rd_cost->rdcost = best_rd; }