| /* |
| * Copyright (c) 2021, Alliance for Open Media. All rights reserved |
| * |
| * This source code is subject to the terms of the BSD 3-Clause Clear License |
| * and the Alliance for Open Media Patent License 1.0. If the BSD 3-Clause Clear |
| * License was not distributed with this source code in the LICENSE file, you |
| * can obtain it at aomedia.org/license/software-license/bsd-3-c-c/. If the |
| * Alliance for Open Media Patent License 1.0 was not distributed with this |
| * source code in the PATENTS file, you can obtain it at |
| * aomedia.org/license/patent-license/. |
| */ |
| |
| #include <limits.h> |
| #include <math.h> |
| #include <stdio.h> |
| |
| #include "config/aom_config.h" |
| #include "config/aom_dsp_rtcd.h" |
| |
| #include "aom_dsp/aom_dsp_common.h" |
| #include "aom_mem/aom_mem.h" |
| #include "aom_ports/mem.h" |
| |
| #include "av1/common/av1_common_int.h" |
| #include "av1/common/common.h" |
| #include "av1/common/filter.h" |
| #include "av1/common/mvref_common.h" |
| #include "av1/common/reconinter.h" |
| |
| #include "av1/encoder/encoder.h" |
| #include "av1/encoder/encodemv.h" |
| #include "av1/encoder/mcomp.h" |
| #include "av1/encoder/rdopt.h" |
| #include "av1/encoder/reconinter_enc.h" |
| |
| static INLINE void init_mv_cost_params(MV_COST_PARAMS *mv_cost_params, |
| const MvCosts *mv_costs, |
| const MV *ref_mv) { |
| mv_cost_params->ref_mv = ref_mv; |
| mv_cost_params->full_ref_mv = get_fullmv_from_mv(ref_mv); |
| mv_cost_params->mv_cost_type = MV_COST_ENTROPY; |
| mv_cost_params->error_per_bit = mv_costs->errorperbit; |
| mv_cost_params->sad_per_bit = mv_costs->sadperbit; |
| mv_cost_params->mvjcost = mv_costs->nmv_joint_cost; |
| mv_cost_params->mvcost[0] = mv_costs->mv_cost_stack[0]; |
| mv_cost_params->mvcost[1] = mv_costs->mv_cost_stack[1]; |
| } |
| |
| static INLINE void init_ms_buffers(MSBuffers *ms_buffers, const MACROBLOCK *x) { |
| ms_buffers->ref = &x->e_mbd.plane[0].pre[0]; |
| ms_buffers->src = &x->plane[0].src; |
| |
| av1_set_ms_compound_refs(ms_buffers, NULL, NULL, 0, 0); |
| |
| ms_buffers->wsrc = x->obmc_buffer.wsrc; |
| ms_buffers->obmc_mask = x->obmc_buffer.mask; |
| } |
| |
| static AOM_INLINE SEARCH_METHODS |
| get_faster_search_method(SEARCH_METHODS search_method) { |
| // Note on search method's accuracy: |
| // 1. NSTEP |
| // 2. DIAMOND |
| // 3. BIGDIA \approx SQUARE |
| // 4. HEX. |
| // 5. FAST_HEX \approx FAST_DIAMOND |
| switch (search_method) { |
| case NSTEP: return DIAMOND; |
| case DIAMOND: return BIGDIA; |
| case BIGDIA: return HEX; |
| case SQUARE: return HEX; |
| case HEX: return FAST_HEX; |
| case FAST_HEX: return FAST_HEX; |
| case FAST_DIAMOND: return FAST_DIAMOND; |
| case FAST_BIGDIA: return FAST_BIGDIA; |
| default: assert(0 && "Invalid search method!"); return DIAMOND; |
| } |
| } |
| |
| void av1_make_default_fullpel_ms_params( |
| FULLPEL_MOTION_SEARCH_PARAMS *ms_params, const struct AV1_COMP *cpi, |
| const MACROBLOCK *x, BLOCK_SIZE bsize, const MV *ref_mv, |
| const search_site_config search_sites[NUM_SEARCH_METHODS], |
| int fine_search_interval) { |
| const MV_SPEED_FEATURES *mv_sf = &cpi->sf.mv_sf; |
| |
| // High level params |
| ms_params->bsize = bsize; |
| ms_params->vfp = &cpi->fn_ptr[bsize]; |
| |
| init_ms_buffers(&ms_params->ms_buffers, x); |
| |
| SEARCH_METHODS search_method = mv_sf->search_method; |
| if (mv_sf->use_bsize_dependent_search_method) { |
| const int min_dim = AOMMIN(block_size_wide[bsize], block_size_high[bsize]); |
| if (min_dim >= 32) { |
| search_method = get_faster_search_method(search_method); |
| } |
| } |
| |
| av1_set_mv_search_method(ms_params, search_sites, search_method); |
| |
| const int use_downsampled_sad = |
| mv_sf->use_downsampled_sad && block_size_high[bsize] >= 16; |
| if (use_downsampled_sad) { |
| ms_params->sdf = ms_params->vfp->sdsf; |
| ms_params->sdx4df = ms_params->vfp->sdsx4df; |
| } else { |
| ms_params->sdf = ms_params->vfp->sdf; |
| ms_params->sdx4df = ms_params->vfp->sdx4df; |
| } |
| |
| ms_params->mesh_patterns[0] = mv_sf->mesh_patterns; |
| ms_params->mesh_patterns[1] = mv_sf->intrabc_mesh_patterns; |
| ms_params->force_mesh_thresh = mv_sf->exhaustive_searches_thresh; |
| ms_params->prune_mesh_search = mv_sf->prune_mesh_search; |
| ms_params->run_mesh_search = 0; |
| ms_params->fine_search_interval = fine_search_interval; |
| |
| ms_params->is_intra_mode = 0; |
| |
| ms_params->fast_obmc_search = mv_sf->obmc_full_pixel_search_level; |
| |
| ms_params->mv_limits = x->mv_limits; |
| av1_set_mv_search_range(&ms_params->mv_limits, ref_mv); |
| |
| // Mvcost params |
| init_mv_cost_params(&ms_params->mv_cost_params, &x->mv_costs, ref_mv); |
| } |
| |
| void av1_make_default_subpel_ms_params(SUBPEL_MOTION_SEARCH_PARAMS *ms_params, |
| const struct AV1_COMP *cpi, |
| const MACROBLOCK *x, BLOCK_SIZE bsize, |
| const MV *ref_mv, const int *cost_list) { |
| const AV1_COMMON *cm = &cpi->common; |
| // High level params |
| ms_params->allow_hp = cm->features.allow_high_precision_mv; |
| ms_params->forced_stop = cpi->sf.mv_sf.subpel_force_stop; |
| ms_params->iters_per_step = cpi->sf.mv_sf.subpel_iters_per_step; |
| ms_params->cost_list = cond_cost_list_const(cpi, cost_list); |
| |
| av1_set_subpel_mv_search_range(&ms_params->mv_limits, &x->mv_limits, ref_mv); |
| |
| // Mvcost params |
| init_mv_cost_params(&ms_params->mv_cost_params, &x->mv_costs, ref_mv); |
| |
| // Subpel variance params |
| ms_params->var_params.vfp = &cpi->fn_ptr[bsize]; |
| ms_params->var_params.subpel_search_type = |
| cpi->sf.mv_sf.use_accurate_subpel_search; |
| ms_params->var_params.w = block_size_wide[bsize]; |
| ms_params->var_params.h = block_size_high[bsize]; |
| |
| // Ref and src buffers |
| MSBuffers *ms_buffers = &ms_params->var_params.ms_buffers; |
| init_ms_buffers(ms_buffers, x); |
| } |
| |
| static INLINE int get_offset_from_fullmv(const FULLPEL_MV *mv, int stride) { |
| return mv->row * stride + mv->col; |
| } |
| |
| static INLINE const uint8_t *get_buf_from_fullmv(const struct buf_2d *buf, |
| const FULLPEL_MV *mv) { |
| return &buf->buf[get_offset_from_fullmv(mv, buf->stride)]; |
| } |
| |
| void av1_set_mv_search_range(FullMvLimits *mv_limits, const MV *mv) { |
| int col_min = |
| GET_MV_RAWPEL(mv->col) - MAX_FULL_PEL_VAL + (mv->col & 7 ? 1 : 0); |
| int row_min = |
| GET_MV_RAWPEL(mv->row) - MAX_FULL_PEL_VAL + (mv->row & 7 ? 1 : 0); |
| int col_max = GET_MV_RAWPEL(mv->col) + MAX_FULL_PEL_VAL; |
| int row_max = GET_MV_RAWPEL(mv->row) + MAX_FULL_PEL_VAL; |
| |
| col_min = AOMMAX(col_min, GET_MV_RAWPEL(MV_LOW) + 1); |
| row_min = AOMMAX(row_min, GET_MV_RAWPEL(MV_LOW) + 1); |
| col_max = AOMMIN(col_max, GET_MV_RAWPEL(MV_UPP) - 1); |
| row_max = AOMMIN(row_max, GET_MV_RAWPEL(MV_UPP) - 1); |
| |
| // Get intersection of UMV window and valid MV window to reduce # of checks |
| // in diamond search. |
| if (mv_limits->col_min < col_min) mv_limits->col_min = col_min; |
| if (mv_limits->col_max > col_max) mv_limits->col_max = col_max; |
| if (mv_limits->row_min < row_min) mv_limits->row_min = row_min; |
| if (mv_limits->row_max > row_max) mv_limits->row_max = row_max; |
| } |
| |
| int av1_init_search_range(int size) { |
| int sr = 0; |
| // Minimum search size no matter what the passed in value. |
| size = AOMMAX(16, size); |
| |
| while ((size << sr) < MAX_FULL_PEL_VAL) sr++; |
| |
| sr = AOMMIN(sr, MAX_MVSEARCH_STEPS - 2); |
| return sr; |
| } |
| |
| // ============================================================================ |
| // Cost of motion vectors |
| // ============================================================================ |
| // TODO(any): Adaptively adjust the regularization strength based on image size |
| // and motion activity instead of using hard-coded values. It seems like we |
| // roughly half the lambda for each increase in resolution |
| // These are multiplier used to perform regularization in motion compensation |
| // when x->mv_cost_type is set to MV_COST_L1. |
| // LOWRES |
| #define SSE_LAMBDA_LOWRES 2 // Used by mv_cost_err_fn |
| #define SAD_LAMBDA_LOWRES 32 // Used by mvsad_err_cost during full pixel search |
| // MIDRES |
| #define SSE_LAMBDA_MIDRES 0 // Used by mv_cost_err_fn |
| #define SAD_LAMBDA_MIDRES 15 // Used by mvsad_err_cost during full pixel search |
| // HDRES |
| #define SSE_LAMBDA_HDRES 1 // Used by mv_cost_err_fn |
| #define SAD_LAMBDA_HDRES 8 // Used by mvsad_err_cost during full pixel search |
| |
| // Returns the rate of encoding the current motion vector based on the |
| // joint_cost and comp_cost. joint_costs covers the cost of transmitting |
| // JOINT_MV, and comp_cost covers the cost of transmitting the actual motion |
| // vector. |
| static INLINE int mv_cost(const MV *mv, const int *joint_cost, |
| const int *const comp_cost[2]) { |
| return joint_cost[av1_get_mv_joint(mv)] + comp_cost[0][mv->row] + |
| comp_cost[1][mv->col]; |
| } |
| |
| #define CONVERT_TO_CONST_MVCOST(ptr) ((const int *const *)(ptr)) |
| // Returns the cost of encoding the motion vector diff := *mv - *ref. The cost |
| // is defined as the rate required to encode diff * weight, rounded to the |
| // nearest 2 ** 7. |
| // This is NOT used during motion compensation. |
| int av1_mv_bit_cost(const MV *mv, const MV *ref_mv, const int *mvjcost, |
| int *mvcost[2], int weight) { |
| const MV diff = { mv->row - ref_mv->row, mv->col - ref_mv->col }; |
| return ROUND_POWER_OF_TWO( |
| mv_cost(&diff, mvjcost, CONVERT_TO_CONST_MVCOST(mvcost)) * weight, 7); |
| } |
| |
| // Returns the cost of using the current mv during the motion search. This is |
| // used when var is used as the error metric. |
| #define PIXEL_TRANSFORM_ERROR_SCALE 4 |
| static INLINE int mv_err_cost(const MV *mv, const MV *ref_mv, |
| const int *mvjcost, const int *const mvcost[2], |
| int error_per_bit, MV_COST_TYPE mv_cost_type) { |
| const MV diff = { mv->row - ref_mv->row, mv->col - ref_mv->col }; |
| const MV abs_diff = { abs(diff.row), abs(diff.col) }; |
| |
| switch (mv_cost_type) { |
| case MV_COST_ENTROPY: |
| if (mvcost) { |
| return (int)ROUND_POWER_OF_TWO_64( |
| (int64_t)mv_cost(&diff, mvjcost, mvcost) * error_per_bit, |
| RDDIV_BITS + AV1_PROB_COST_SHIFT - RD_EPB_SHIFT + |
| PIXEL_TRANSFORM_ERROR_SCALE); |
| } |
| return 0; |
| case MV_COST_L1_LOWRES: |
| return (SSE_LAMBDA_LOWRES * (abs_diff.row + abs_diff.col)) >> 3; |
| case MV_COST_L1_MIDRES: |
| return (SSE_LAMBDA_MIDRES * (abs_diff.row + abs_diff.col)) >> 3; |
| case MV_COST_L1_HDRES: |
| return (SSE_LAMBDA_HDRES * (abs_diff.row + abs_diff.col)) >> 3; |
| case MV_COST_NONE: return 0; |
| default: assert(0 && "Invalid rd_cost_type"); return 0; |
| } |
| } |
| |
| static INLINE int mv_err_cost_(const MV *mv, |
| const MV_COST_PARAMS *mv_cost_params) { |
| return mv_err_cost(mv, mv_cost_params->ref_mv, mv_cost_params->mvjcost, |
| mv_cost_params->mvcost, mv_cost_params->error_per_bit, |
| mv_cost_params->mv_cost_type); |
| } |
| |
| // Returns the cost of using the current mv during the motion search. This is |
| // only used during full pixel motion search when sad is used as the error |
| // metric |
| static INLINE int mvsad_err_cost(const FULLPEL_MV *mv, const FULLPEL_MV *ref_mv, |
| const int *mvjcost, const int *const mvcost[2], |
| int sad_per_bit, MV_COST_TYPE mv_cost_type) { |
| const MV diff = { GET_MV_SUBPEL(mv->row - ref_mv->row), |
| GET_MV_SUBPEL(mv->col - ref_mv->col) }; |
| |
| switch (mv_cost_type) { |
| case MV_COST_ENTROPY: |
| return ROUND_POWER_OF_TWO( |
| (unsigned)mv_cost(&diff, mvjcost, CONVERT_TO_CONST_MVCOST(mvcost)) * |
| sad_per_bit, |
| AV1_PROB_COST_SHIFT); |
| case MV_COST_L1_LOWRES: |
| return (SAD_LAMBDA_LOWRES * (abs(diff.row) + abs(diff.col))) >> 3; |
| case MV_COST_L1_MIDRES: |
| return (SAD_LAMBDA_MIDRES * (abs(diff.row) + abs(diff.col))) >> 3; |
| case MV_COST_L1_HDRES: |
| return (SAD_LAMBDA_HDRES * (abs(diff.row) + abs(diff.col))) >> 3; |
| case MV_COST_NONE: return 0; |
| default: assert(0 && "Invalid rd_cost_type"); return 0; |
| } |
| } |
| |
| static INLINE int mvsad_err_cost_(const FULLPEL_MV *mv, |
| const MV_COST_PARAMS *mv_cost_params) { |
| return mvsad_err_cost(mv, &mv_cost_params->full_ref_mv, |
| mv_cost_params->mvjcost, mv_cost_params->mvcost, |
| mv_cost_params->sad_per_bit, |
| mv_cost_params->mv_cost_type); |
| } |
| |
| // ============================================================================= |
| // Fullpixel Motion Search: Translational |
| // ============================================================================= |
| #define MAX_PATTERN_SCALES 11 |
| #define MAX_PATTERN_CANDIDATES 8 // max number of candidates per scale |
| #define PATTERN_CANDIDATES_REF 3 // number of refinement candidates |
| |
| void av1_init_dsmotion_compensation(search_site_config *cfg, int stride) { |
| int num_search_steps = 0; |
| int stage_index = MAX_MVSEARCH_STEPS - 1; |
| |
| cfg->site[stage_index][0].mv.col = cfg->site[stage_index][0].mv.row = 0; |
| cfg->site[stage_index][0].offset = 0; |
| cfg->stride = stride; |
| |
| for (int radius = MAX_FIRST_STEP; radius > 0; radius /= 2) { |
| int num_search_pts = 8; |
| |
| const FULLPEL_MV search_site_mvs[13] = { |
| { 0, 0 }, { -radius, 0 }, { radius, 0 }, |
| { 0, -radius }, { 0, radius }, { -radius, -radius }, |
| { radius, radius }, { -radius, radius }, { radius, -radius }, |
| }; |
| |
| int i; |
| for (i = 0; i <= num_search_pts; ++i) { |
| search_site *const site = &cfg->site[stage_index][i]; |
| site->mv = search_site_mvs[i]; |
| site->offset = get_offset_from_fullmv(&site->mv, stride); |
| } |
| cfg->searches_per_step[stage_index] = num_search_pts; |
| cfg->radius[stage_index] = radius; |
| --stage_index; |
| ++num_search_steps; |
| } |
| cfg->num_search_steps = num_search_steps; |
| } |
| |
| void av1_init_motion_fpf(search_site_config *cfg, int stride) { |
| int num_search_steps = 0; |
| int stage_index = MAX_MVSEARCH_STEPS - 1; |
| |
| cfg->site[stage_index][0].mv.col = cfg->site[stage_index][0].mv.row = 0; |
| cfg->site[stage_index][0].offset = 0; |
| cfg->stride = stride; |
| |
| for (int radius = MAX_FIRST_STEP; radius > 0; radius /= 2) { |
| // Generate offsets for 8 search sites per step. |
| int tan_radius = AOMMAX((int)(0.41 * radius), 1); |
| int num_search_pts = 12; |
| if (radius == 1) num_search_pts = 8; |
| |
| const FULLPEL_MV search_site_mvs[13] = { |
| { 0, 0 }, |
| { -radius, 0 }, |
| { radius, 0 }, |
| { 0, -radius }, |
| { 0, radius }, |
| { -radius, -tan_radius }, |
| { radius, tan_radius }, |
| { -tan_radius, radius }, |
| { tan_radius, -radius }, |
| { -radius, tan_radius }, |
| { radius, -tan_radius }, |
| { tan_radius, radius }, |
| { -tan_radius, -radius }, |
| }; |
| |
| int i; |
| for (i = 0; i <= num_search_pts; ++i) { |
| search_site *const site = &cfg->site[stage_index][i]; |
| site->mv = search_site_mvs[i]; |
| site->offset = get_offset_from_fullmv(&site->mv, stride); |
| } |
| cfg->searches_per_step[stage_index] = num_search_pts; |
| cfg->radius[stage_index] = radius; |
| --stage_index; |
| ++num_search_steps; |
| } |
| cfg->num_search_steps = num_search_steps; |
| } |
| |
| // Search site initialization for NSTEP search method. |
| void av1_init_motion_compensation_nstep(search_site_config *cfg, int stride) { |
| int num_search_steps = 0; |
| int stage_index = 0; |
| cfg->stride = stride; |
| int radius = 1; |
| for (stage_index = 0; stage_index < 15; ++stage_index) { |
| int tan_radius = AOMMAX((int)(0.41 * radius), 1); |
| int num_search_pts = 12; |
| if (radius <= 5) { |
| tan_radius = radius; |
| num_search_pts = 8; |
| } |
| const FULLPEL_MV search_site_mvs[13] = { |
| { 0, 0 }, |
| { -radius, 0 }, |
| { radius, 0 }, |
| { 0, -radius }, |
| { 0, radius }, |
| { -radius, -tan_radius }, |
| { radius, tan_radius }, |
| { -tan_radius, radius }, |
| { tan_radius, -radius }, |
| { -radius, tan_radius }, |
| { radius, -tan_radius }, |
| { tan_radius, radius }, |
| { -tan_radius, -radius }, |
| }; |
| |
| for (int i = 0; i <= num_search_pts; ++i) { |
| search_site *const site = &cfg->site[stage_index][i]; |
| site->mv = search_site_mvs[i]; |
| site->offset = get_offset_from_fullmv(&site->mv, stride); |
| } |
| cfg->searches_per_step[stage_index] = num_search_pts; |
| cfg->radius[stage_index] = radius; |
| ++num_search_steps; |
| if (stage_index < 12) |
| radius = (int)AOMMAX((radius * 1.5 + 0.5), radius + 1); |
| } |
| cfg->num_search_steps = num_search_steps; |
| } |
| |
| // Search site initialization for BIGDIA / FAST_BIGDIA / FAST_DIAMOND |
| // search methods. |
| void av1_init_motion_compensation_bigdia(search_site_config *cfg, int stride) { |
| cfg->stride = stride; |
| // First scale has 4-closest points, the rest have 8 points in diamond |
| // shape at increasing scales |
| static const int bigdia_num_candidates[MAX_PATTERN_SCALES] = { |
| 4, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, |
| }; |
| |
| // BIGDIA search method candidates. |
| // Note that the largest candidate step at each scale is 2^scale |
| /* clang-format off */ |
| static const FULLPEL_MV |
| site_candidates[MAX_PATTERN_SCALES][MAX_PATTERN_CANDIDATES] = { |
| { { 0, -1 }, { 1, 0 }, { 0, 1 }, { -1, 0 }, { 0, 0 }, { 0, 0 }, |
| { 0, 0 }, { 0, 0 } }, |
| { { -1, -1 }, { 0, -2 }, { 1, -1 }, { 2, 0 }, { 1, 1 }, { 0, 2 }, |
| { -1, 1 }, { -2, 0 } }, |
| { { -2, -2 }, { 0, -4 }, { 2, -2 }, { 4, 0 }, { 2, 2 }, { 0, 4 }, |
| { -2, 2 }, { -4, 0 } }, |
| { { -4, -4 }, { 0, -8 }, { 4, -4 }, { 8, 0 }, { 4, 4 }, { 0, 8 }, |
| { -4, 4 }, { -8, 0 } }, |
| { { -8, -8 }, { 0, -16 }, { 8, -8 }, { 16, 0 }, { 8, 8 }, { 0, 16 }, |
| { -8, 8 }, { -16, 0 } }, |
| { { -16, -16 }, { 0, -32 }, { 16, -16 }, { 32, 0 }, { 16, 16 }, |
| { 0, 32 }, { -16, 16 }, { -32, 0 } }, |
| { { -32, -32 }, { 0, -64 }, { 32, -32 }, { 64, 0 }, { 32, 32 }, |
| { 0, 64 }, { -32, 32 }, { -64, 0 } }, |
| { { -64, -64 }, { 0, -128 }, { 64, -64 }, { 128, 0 }, { 64, 64 }, |
| { 0, 128 }, { -64, 64 }, { -128, 0 } }, |
| { { -128, -128 }, { 0, -256 }, { 128, -128 }, { 256, 0 }, |
| { 128, 128 }, { 0, 256 }, { -128, 128 }, { -256, 0 } }, |
| { { -256, -256 }, { 0, -512 }, { 256, -256 }, { 512, 0 }, |
| { 256, 256 }, { 0, 512 }, { -256, 256 }, { -512, 0 } }, |
| { { -512, -512 }, { 0, -1024 }, { 512, -512 }, { 1024, 0 }, |
| { 512, 512 }, { 0, 1024 }, { -512, 512 }, { -1024, 0 } }, |
| }; |
| |
| /* clang-format on */ |
| int radius = 1; |
| for (int i = 0; i < MAX_PATTERN_SCALES; ++i) { |
| cfg->searches_per_step[i] = bigdia_num_candidates[i]; |
| cfg->radius[i] = radius; |
| for (int j = 0; j < MAX_PATTERN_CANDIDATES; ++j) { |
| search_site *const site = &cfg->site[i][j]; |
| site->mv = site_candidates[i][j]; |
| site->offset = get_offset_from_fullmv(&site->mv, stride); |
| } |
| radius *= 2; |
| } |
| cfg->num_search_steps = MAX_PATTERN_SCALES; |
| } |
| |
| // Search site initialization for SQUARE search method. |
| void av1_init_motion_compensation_square(search_site_config *cfg, int stride) { |
| cfg->stride = stride; |
| // All scales have 8 closest points in square shape. |
| static const int square_num_candidates[MAX_PATTERN_SCALES] = { |
| 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, |
| }; |
| |
| // Square search method candidates. |
| // Note that the largest candidate step at each scale is 2^scale. |
| /* clang-format off */ |
| static const FULLPEL_MV |
| square_candidates[MAX_PATTERN_SCALES][MAX_PATTERN_CANDIDATES] = { |
| { { -1, -1 }, { 0, -1 }, { 1, -1 }, { 1, 0 }, { 1, 1 }, { 0, 1 }, |
| { -1, 1 }, { -1, 0 } }, |
| { { -2, -2 }, { 0, -2 }, { 2, -2 }, { 2, 0 }, { 2, 2 }, { 0, 2 }, |
| { -2, 2 }, { -2, 0 } }, |
| { { -4, -4 }, { 0, -4 }, { 4, -4 }, { 4, 0 }, { 4, 4 }, { 0, 4 }, |
| { -4, 4 }, { -4, 0 } }, |
| { { -8, -8 }, { 0, -8 }, { 8, -8 }, { 8, 0 }, { 8, 8 }, { 0, 8 }, |
| { -8, 8 }, { -8, 0 } }, |
| { { -16, -16 }, { 0, -16 }, { 16, -16 }, { 16, 0 }, { 16, 16 }, |
| { 0, 16 }, { -16, 16 }, { -16, 0 } }, |
| { { -32, -32 }, { 0, -32 }, { 32, -32 }, { 32, 0 }, { 32, 32 }, |
| { 0, 32 }, { -32, 32 }, { -32, 0 } }, |
| { { -64, -64 }, { 0, -64 }, { 64, -64 }, { 64, 0 }, { 64, 64 }, |
| { 0, 64 }, { -64, 64 }, { -64, 0 } }, |
| { { -128, -128 }, { 0, -128 }, { 128, -128 }, { 128, 0 }, |
| { 128, 128 }, { 0, 128 }, { -128, 128 }, { -128, 0 } }, |
| { { -256, -256 }, { 0, -256 }, { 256, -256 }, { 256, 0 }, |
| { 256, 256 }, { 0, 256 }, { -256, 256 }, { -256, 0 } }, |
| { { -512, -512 }, { 0, -512 }, { 512, -512 }, { 512, 0 }, |
| { 512, 512 }, { 0, 512 }, { -512, 512 }, { -512, 0 } }, |
| { { -1024, -1024 }, { 0, -1024 }, { 1024, -1024 }, { 1024, 0 }, |
| { 1024, 1024 }, { 0, 1024 }, { -1024, 1024 }, { -1024, 0 } }, |
| }; |
| |
| /* clang-format on */ |
| int radius = 1; |
| for (int i = 0; i < MAX_PATTERN_SCALES; ++i) { |
| cfg->searches_per_step[i] = square_num_candidates[i]; |
| cfg->radius[i] = radius; |
| for (int j = 0; j < MAX_PATTERN_CANDIDATES; ++j) { |
| search_site *const site = &cfg->site[i][j]; |
| site->mv = square_candidates[i][j]; |
| site->offset = get_offset_from_fullmv(&site->mv, stride); |
| } |
| radius *= 2; |
| } |
| cfg->num_search_steps = MAX_PATTERN_SCALES; |
| } |
| |
| // Search site initialization for HEX / FAST_HEX search methods. |
| void av1_init_motion_compensation_hex(search_site_config *cfg, int stride) { |
| cfg->stride = stride; |
| // First scale has 8-closest points, the rest have 6 points in hex shape |
| // at increasing scales. |
| static const int hex_num_candidates[MAX_PATTERN_SCALES] = { 8, 6, 6, 6, 6, 6, |
| 6, 6, 6, 6, 6 }; |
| // Note that the largest candidate step at each scale is 2^scale. |
| /* clang-format off */ |
| static const FULLPEL_MV |
| hex_candidates[MAX_PATTERN_SCALES][MAX_PATTERN_CANDIDATES] = { |
| { { -1, -1 }, { 0, -1 }, { 1, -1 }, { 1, 0 }, { 1, 1 }, { 0, 1 }, |
| { -1, 1 }, { -1, 0 } }, |
| { { -1, -2 }, { 1, -2 }, { 2, 0 }, { 1, 2 }, { -1, 2 }, { -2, 0 } }, |
| { { -2, -4 }, { 2, -4 }, { 4, 0 }, { 2, 4 }, { -2, 4 }, { -4, 0 } }, |
| { { -4, -8 }, { 4, -8 }, { 8, 0 }, { 4, 8 }, { -4, 8 }, { -8, 0 } }, |
| { { -8, -16 }, { 8, -16 }, { 16, 0 }, { 8, 16 }, |
| { -8, 16 }, { -16, 0 } }, |
| { { -16, -32 }, { 16, -32 }, { 32, 0 }, { 16, 32 }, { -16, 32 }, |
| { -32, 0 } }, |
| { { -32, -64 }, { 32, -64 }, { 64, 0 }, { 32, 64 }, { -32, 64 }, |
| { -64, 0 } }, |
| { { -64, -128 }, { 64, -128 }, { 128, 0 }, { 64, 128 }, |
| { -64, 128 }, { -128, 0 } }, |
| { { -128, -256 }, { 128, -256 }, { 256, 0 }, { 128, 256 }, |
| { -128, 256 }, { -256, 0 } }, |
| { { -256, -512 }, { 256, -512 }, { 512, 0 }, { 256, 512 }, |
| { -256, 512 }, { -512, 0 } }, |
| { { -512, -1024 }, { 512, -1024 }, { 1024, 0 }, { 512, 1024 }, |
| { -512, 1024 }, { -1024, 0 } }, |
| }; |
| |
| /* clang-format on */ |
| int radius = 1; |
| for (int i = 0; i < MAX_PATTERN_SCALES; ++i) { |
| cfg->searches_per_step[i] = hex_num_candidates[i]; |
| cfg->radius[i] = radius; |
| for (int j = 0; j < hex_num_candidates[i]; ++j) { |
| search_site *const site = &cfg->site[i][j]; |
| site->mv = hex_candidates[i][j]; |
| site->offset = get_offset_from_fullmv(&site->mv, stride); |
| } |
| radius *= 2; |
| } |
| cfg->num_search_steps = MAX_PATTERN_SCALES; |
| } |
| |
| // Checks whether the mv is within range of the mv_limits |
| static INLINE int check_bounds(const FullMvLimits *mv_limits, int row, int col, |
| int range) { |
| return ((row - range) >= mv_limits->row_min) & |
| ((row + range) <= mv_limits->row_max) & |
| ((col - range) >= mv_limits->col_min) & |
| ((col + range) <= mv_limits->col_max); |
| } |
| |
| static INLINE int get_mvpred_var_cost( |
| const FULLPEL_MOTION_SEARCH_PARAMS *ms_params, const FULLPEL_MV *this_mv) { |
| const aom_variance_fn_ptr_t *vfp = ms_params->vfp; |
| const MV sub_this_mv = get_mv_from_fullmv(this_mv); |
| const struct buf_2d *const src = ms_params->ms_buffers.src; |
| const struct buf_2d *const ref = ms_params->ms_buffers.ref; |
| const uint8_t *src_buf = src->buf; |
| const int src_stride = src->stride; |
| const int ref_stride = ref->stride; |
| |
| unsigned unused; |
| int bestsme; |
| |
| bestsme = vfp->vf(src_buf, src_stride, get_buf_from_fullmv(ref, this_mv), |
| ref_stride, &unused); |
| |
| bestsme += mv_err_cost_(&sub_this_mv, &ms_params->mv_cost_params); |
| |
| return bestsme; |
| } |
| |
| static INLINE int get_mvpred_sad(const FULLPEL_MOTION_SEARCH_PARAMS *ms_params, |
| const struct buf_2d *const src, |
| const uint8_t *const ref_address, |
| const int ref_stride) { |
| const uint8_t *src_buf = src->buf; |
| const int src_stride = src->stride; |
| |
| return ms_params->sdf(src_buf, src_stride, ref_address, ref_stride); |
| } |
| |
| static INLINE int get_mvpred_compound_var_cost( |
| const FULLPEL_MOTION_SEARCH_PARAMS *ms_params, const FULLPEL_MV *this_mv) { |
| const aom_variance_fn_ptr_t *vfp = ms_params->vfp; |
| const struct buf_2d *const src = ms_params->ms_buffers.src; |
| const struct buf_2d *const ref = ms_params->ms_buffers.ref; |
| const uint8_t *src_buf = src->buf; |
| const int src_stride = src->stride; |
| const int ref_stride = ref->stride; |
| |
| const uint8_t *mask = ms_params->ms_buffers.mask; |
| const uint8_t *second_pred = ms_params->ms_buffers.second_pred; |
| const int mask_stride = ms_params->ms_buffers.mask_stride; |
| const int invert_mask = ms_params->ms_buffers.inv_mask; |
| unsigned unused; |
| int bestsme; |
| |
| if (mask) { |
| bestsme = vfp->msvf(get_buf_from_fullmv(ref, this_mv), ref_stride, 0, 0, |
| src_buf, src_stride, second_pred, mask, mask_stride, |
| invert_mask, &unused); |
| } else if (second_pred) { |
| bestsme = vfp->svaf(get_buf_from_fullmv(ref, this_mv), ref_stride, 0, 0, |
| src_buf, src_stride, &unused, second_pred); |
| } else { |
| bestsme = vfp->vf(src_buf, src_stride, get_buf_from_fullmv(ref, this_mv), |
| ref_stride, &unused); |
| } |
| |
| const MV sub_this_mv = get_mv_from_fullmv(this_mv); |
| bestsme += mv_err_cost_(&sub_this_mv, &ms_params->mv_cost_params); |
| |
| return bestsme; |
| } |
| |
| static INLINE int get_mvpred_compound_sad( |
| const FULLPEL_MOTION_SEARCH_PARAMS *ms_params, |
| const struct buf_2d *const src, const uint8_t *const ref_address, |
| const int ref_stride) { |
| const aom_variance_fn_ptr_t *vfp = ms_params->vfp; |
| const uint8_t *src_buf = src->buf; |
| const int src_stride = src->stride; |
| |
| const uint8_t *mask = ms_params->ms_buffers.mask; |
| const uint8_t *second_pred = ms_params->ms_buffers.second_pred; |
| const int mask_stride = ms_params->ms_buffers.mask_stride; |
| const int invert_mask = ms_params->ms_buffers.inv_mask; |
| |
| if (mask) { |
| return vfp->msdf(src_buf, src_stride, ref_address, ref_stride, second_pred, |
| mask, mask_stride, invert_mask); |
| } else if (second_pred) { |
| return vfp->sdaf(src_buf, src_stride, ref_address, ref_stride, second_pred); |
| } else { |
| return ms_params->sdf(src_buf, src_stride, ref_address, ref_stride); |
| } |
| } |
| |
| // Calculates and returns a sad+mvcost list around an integer best pel during |
| // fullpixel motion search. The resulting list can be used to speed up subpel |
| // motion search later. |
| #define USE_SAD_COSTLIST 1 |
| |
| // calc_int_cost_list uses var to populate the costlist, which is more accurate |
| // than sad but slightly slower. |
| static AOM_FORCE_INLINE void calc_int_cost_list( |
| const FULLPEL_MV best_mv, const FULLPEL_MOTION_SEARCH_PARAMS *ms_params, |
| int *cost_list) { |
| static const FULLPEL_MV neighbors[4] = { |
| { 0, -1 }, { 1, 0 }, { 0, 1 }, { -1, 0 } |
| }; |
| const int br = best_mv.row; |
| const int bc = best_mv.col; |
| |
| cost_list[0] = get_mvpred_var_cost(ms_params, &best_mv); |
| |
| if (check_bounds(&ms_params->mv_limits, br, bc, 1)) { |
| for (int i = 0; i < 4; i++) { |
| const FULLPEL_MV neighbor_mv = { br + neighbors[i].row, |
| bc + neighbors[i].col }; |
| cost_list[i + 1] = get_mvpred_var_cost(ms_params, &neighbor_mv); |
| } |
| } else { |
| for (int i = 0; i < 4; i++) { |
| const FULLPEL_MV neighbor_mv = { br + neighbors[i].row, |
| bc + neighbors[i].col }; |
| if (!av1_is_fullmv_in_range(&ms_params->mv_limits, neighbor_mv)) { |
| cost_list[i + 1] = INT_MAX; |
| } else { |
| cost_list[i + 1] = get_mvpred_var_cost(ms_params, &neighbor_mv); |
| } |
| } |
| } |
| } |
| |
| // calc_int_sad_list uses sad to populate the costlist, which is less accurate |
| // than var but faster. |
| static AOM_FORCE_INLINE void calc_int_sad_list( |
| const FULLPEL_MV best_mv, const FULLPEL_MOTION_SEARCH_PARAMS *ms_params, |
| int *cost_list, int costlist_has_sad) { |
| static const FULLPEL_MV neighbors[4] = { |
| { 0, -1 }, { 1, 0 }, { 0, 1 }, { -1, 0 } |
| }; |
| const struct buf_2d *const src = ms_params->ms_buffers.src; |
| const struct buf_2d *const ref = ms_params->ms_buffers.ref; |
| const int ref_stride = ref->stride; |
| const int br = best_mv.row; |
| const int bc = best_mv.col; |
| |
| assert(av1_is_fullmv_in_range(&ms_params->mv_limits, best_mv)); |
| |
| // Refresh the costlist it does not contain valid sad |
| if (!costlist_has_sad) { |
| cost_list[0] = get_mvpred_sad( |
| ms_params, src, get_buf_from_fullmv(ref, &best_mv), ref_stride); |
| |
| if (check_bounds(&ms_params->mv_limits, br, bc, 1)) { |
| for (int i = 0; i < 4; i++) { |
| const FULLPEL_MV this_mv = { br + neighbors[i].row, |
| bc + neighbors[i].col }; |
| cost_list[i + 1] = get_mvpred_sad( |
| ms_params, src, get_buf_from_fullmv(ref, &this_mv), ref_stride); |
| } |
| } else { |
| for (int i = 0; i < 4; i++) { |
| const FULLPEL_MV this_mv = { br + neighbors[i].row, |
| bc + neighbors[i].col }; |
| if (!av1_is_fullmv_in_range(&ms_params->mv_limits, this_mv)) { |
| cost_list[i + 1] = INT_MAX; |
| } else { |
| cost_list[i + 1] = get_mvpred_sad( |
| ms_params, src, get_buf_from_fullmv(ref, &this_mv), ref_stride); |
| } |
| } |
| } |
| } |
| |
| const MV_COST_PARAMS *mv_cost_params = &ms_params->mv_cost_params; |
| cost_list[0] += mvsad_err_cost_(&best_mv, mv_cost_params); |
| |
| for (int idx = 0; idx < 4; idx++) { |
| if (cost_list[idx + 1] != INT_MAX) { |
| const FULLPEL_MV this_mv = { br + neighbors[idx].row, |
| bc + neighbors[idx].col }; |
| cost_list[idx + 1] += mvsad_err_cost_(&this_mv, mv_cost_params); |
| } |
| } |
| } |
| |
| // Computes motion vector cost and adds to the sad cost. |
| // Then updates the best sad and motion vectors. |
| // Inputs: |
| // this_sad: the sad to be evaluated. |
| // mv: the current motion vector. |
| // mv_cost_params: a structure containing information to compute mv cost. |
| // best_sad: the current best sad. |
| // raw_best_sad (optional): the current best sad without calculating mv cost. |
| // best_mv: the current best motion vector. |
| // second_best_mv (optional): the second best motion vector up to now. |
| // Modifies: |
| // best_sad, raw_best_sad, best_mv, second_best_mv |
| // If the current sad is lower than the current best sad. |
| // Returns: |
| // Whether the input sad (mv) is better than the current best. |
| static int update_mvs_and_sad(const unsigned int this_sad, const FULLPEL_MV *mv, |
| const MV_COST_PARAMS *mv_cost_params, |
| unsigned int *best_sad, |
| unsigned int *raw_best_sad, FULLPEL_MV *best_mv, |
| FULLPEL_MV *second_best_mv) { |
| if (this_sad >= *best_sad) return 0; |
| |
| // Add the motion vector cost. |
| const unsigned int sad = this_sad + mvsad_err_cost_(mv, mv_cost_params); |
| if (sad < *best_sad) { |
| if (raw_best_sad) *raw_best_sad = this_sad; |
| *best_sad = sad; |
| if (second_best_mv) *second_best_mv = *best_mv; |
| *best_mv = *mv; |
| return 1; |
| } |
| return 0; |
| } |
| |
| // Calculate sad4 and update the bestmv information |
| // in FAST_DIAMOND search method. |
| static void calc_sad4_update_bestmv( |
| const FULLPEL_MOTION_SEARCH_PARAMS *ms_params, |
| const MV_COST_PARAMS *mv_cost_params, FULLPEL_MV *best_mv, |
| FULLPEL_MV *temp_best_mv, unsigned int *bestsad, unsigned int *raw_bestsad, |
| int search_step, int *best_site, int cand_start) { |
| const struct buf_2d *const src = ms_params->ms_buffers.src; |
| const struct buf_2d *const ref = ms_params->ms_buffers.ref; |
| const search_site *site = ms_params->search_sites->site[search_step]; |
| |
| unsigned char const *block_offset[4]; |
| unsigned int sads[4]; |
| const uint8_t *best_address; |
| const uint8_t *src_buf = src->buf; |
| const int src_stride = src->stride; |
| best_address = get_buf_from_fullmv(ref, temp_best_mv); |
| // Loop over number of candidates. |
| for (int j = 0; j < 4; j++) |
| block_offset[j] = site[cand_start + j].offset + best_address; |
| |
| // 4-point sad calculation. |
| ms_params->sdx4df(src_buf, src_stride, block_offset, ref->stride, sads); |
| |
| for (int j = 0; j < 4; j++) { |
| const FULLPEL_MV this_mv = { |
| temp_best_mv->row + site[cand_start + j].mv.row, |
| temp_best_mv->col + site[cand_start + j].mv.col |
| }; |
| const int found_better_mv = update_mvs_and_sad( |
| sads[j], &this_mv, mv_cost_params, bestsad, raw_bestsad, best_mv, |
| /*second_best_mv=*/NULL); |
| if (found_better_mv) *best_site = cand_start + j; |
| } |
| } |
| |
| // Calculate sad and update the bestmv information |
| // in FAST_DIAMOND search method. |
| static void calc_sad_update_bestmv( |
| const FULLPEL_MOTION_SEARCH_PARAMS *ms_params, |
| const MV_COST_PARAMS *mv_cost_params, FULLPEL_MV *best_mv, |
| FULLPEL_MV *temp_best_mv, unsigned int *bestsad, unsigned int *raw_bestsad, |
| int search_step, int *best_site, const int num_candidates, int cand_start) { |
| const struct buf_2d *const src = ms_params->ms_buffers.src; |
| const struct buf_2d *const ref = ms_params->ms_buffers.ref; |
| const search_site *site = ms_params->search_sites->site[search_step]; |
| // Loop over number of candidates. |
| for (int i = cand_start; i < num_candidates; i++) { |
| const FULLPEL_MV this_mv = { temp_best_mv->row + site[i].mv.row, |
| temp_best_mv->col + site[i].mv.col }; |
| if (!av1_is_fullmv_in_range(&ms_params->mv_limits, this_mv)) continue; |
| int thissad = get_mvpred_sad( |
| ms_params, src, get_buf_from_fullmv(ref, &this_mv), ref->stride); |
| const int found_better_mv = update_mvs_and_sad( |
| thissad, &this_mv, mv_cost_params, bestsad, raw_bestsad, best_mv, |
| /*second_best_mv=*/NULL); |
| if (found_better_mv) *best_site = i; |
| } |
| } |
| |
| // Generic pattern search function that searches over multiple scales. |
| // Each scale can have a different number of candidates and shape of |
| // candidates as indicated in the num_candidates and candidates arrays |
| // passed into this function |
| static int pattern_search(FULLPEL_MV start_mv, |
| const FULLPEL_MOTION_SEARCH_PARAMS *ms_params, |
| int search_step, const int do_init_search, |
| int *cost_list, FULLPEL_MV *best_mv) { |
| static const int search_steps[MAX_MVSEARCH_STEPS] = { |
| 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, |
| }; |
| int i, s, t; |
| |
| const struct buf_2d *const src = ms_params->ms_buffers.src; |
| const struct buf_2d *const ref = ms_params->ms_buffers.ref; |
| const search_site_config *search_sites = ms_params->search_sites; |
| const int *num_candidates = search_sites->searches_per_step; |
| const int ref_stride = ref->stride; |
| const int last_is_4 = num_candidates[0] == 4; |
| int br, bc; |
| unsigned int bestsad = UINT_MAX, raw_bestsad = UINT_MAX; |
| int thissad; |
| int k = -1; |
| const MV_COST_PARAMS *mv_cost_params = &ms_params->mv_cost_params; |
| search_step = AOMMIN(search_step, MAX_MVSEARCH_STEPS - 1); |
| assert(search_step >= 0); |
| int best_init_s = search_steps[search_step]; |
| // adjust ref_mv to make sure it is within MV range |
| clamp_fullmv(&start_mv, &ms_params->mv_limits); |
| br = start_mv.row; |
| bc = start_mv.col; |
| if (cost_list != NULL) { |
| cost_list[0] = cost_list[1] = cost_list[2] = cost_list[3] = cost_list[4] = |
| INT_MAX; |
| } |
| int costlist_has_sad = 0; |
| |
| // Work out the start point for the search |
| raw_bestsad = get_mvpred_sad(ms_params, src, |
| get_buf_from_fullmv(ref, &start_mv), ref_stride); |
| bestsad = raw_bestsad + mvsad_err_cost_(&start_mv, mv_cost_params); |
| |
| // Search all possible scales up to the search param around the center point |
| // pick the scale of the point that is best as the starting scale of |
| // further steps around it. |
| if (do_init_search) { |
| s = best_init_s; |
| best_init_s = -1; |
| for (t = 0; t <= s; ++t) { |
| int best_site = -1; |
| FULLPEL_MV temp_best_mv; |
| temp_best_mv.row = br; |
| temp_best_mv.col = bc; |
| if (check_bounds(&ms_params->mv_limits, br, bc, 1 << t)) { |
| // Call 4-point sad for multiples of 4 candidates. |
| const int no_of_4_cand_loops = num_candidates[t] >> 2; |
| for (i = 0; i < no_of_4_cand_loops; i++) { |
| calc_sad4_update_bestmv(ms_params, mv_cost_params, best_mv, |
| &temp_best_mv, &bestsad, &raw_bestsad, t, |
| &best_site, i * 4); |
| } |
| // Rest of the candidates |
| const int remaining_cand = num_candidates[t] % 4; |
| calc_sad_update_bestmv(ms_params, mv_cost_params, best_mv, |
| &temp_best_mv, &bestsad, &raw_bestsad, t, |
| &best_site, remaining_cand, |
| no_of_4_cand_loops * 4); |
| } else { |
| calc_sad_update_bestmv(ms_params, mv_cost_params, best_mv, |
| &temp_best_mv, &bestsad, &raw_bestsad, t, |
| &best_site, num_candidates[t], 0); |
| } |
| if (best_site == -1) { |
| continue; |
| } else { |
| best_init_s = t; |
| k = best_site; |
| } |
| } |
| if (best_init_s != -1) { |
| br += search_sites->site[best_init_s][k].mv.row; |
| bc += search_sites->site[best_init_s][k].mv.col; |
| } |
| } |
| |
| // If the center point is still the best, just skip this and move to |
| // the refinement step. |
| if (best_init_s != -1) { |
| const int last_s = (last_is_4 && cost_list != NULL); |
| int best_site = -1; |
| s = best_init_s; |
| |
| for (; s >= last_s; s--) { |
| // No need to search all points the 1st time if initial search was used |
| if (!do_init_search || s != best_init_s) { |
| FULLPEL_MV temp_best_mv; |
| temp_best_mv.row = br; |
| temp_best_mv.col = bc; |
| if (check_bounds(&ms_params->mv_limits, br, bc, 1 << s)) { |
| // Call 4-point sad for multiples of 4 candidates. |
| const int no_of_4_cand_loops = num_candidates[s] >> 2; |
| for (i = 0; i < no_of_4_cand_loops; i++) { |
| calc_sad4_update_bestmv(ms_params, mv_cost_params, best_mv, |
| &temp_best_mv, &bestsad, &raw_bestsad, s, |
| &best_site, i * 4); |
| } |
| // Rest of the candidates |
| const int remaining_cand = num_candidates[s] % 4; |
| calc_sad_update_bestmv(ms_params, mv_cost_params, best_mv, |
| &temp_best_mv, &bestsad, &raw_bestsad, s, |
| &best_site, remaining_cand, |
| no_of_4_cand_loops * 4); |
| } else { |
| calc_sad_update_bestmv(ms_params, mv_cost_params, best_mv, |
| &temp_best_mv, &bestsad, &raw_bestsad, s, |
| &best_site, num_candidates[s], 0); |
| } |
| |
| if (best_site == -1) { |
| continue; |
| } else { |
| br += search_sites->site[s][best_site].mv.row; |
| bc += search_sites->site[s][best_site].mv.col; |
| k = best_site; |
| } |
| } |
| |
| do { |
| int next_chkpts_indices[PATTERN_CANDIDATES_REF]; |
| best_site = -1; |
| next_chkpts_indices[0] = (k == 0) ? num_candidates[s] - 1 : k - 1; |
| next_chkpts_indices[1] = k; |
| next_chkpts_indices[2] = (k == num_candidates[s] - 1) ? 0 : k + 1; |
| |
| if (check_bounds(&ms_params->mv_limits, br, bc, 1 << s)) { |
| for (i = 0; i < PATTERN_CANDIDATES_REF; i++) { |
| const FULLPEL_MV this_mv = { |
| br + search_sites->site[s][next_chkpts_indices[i]].mv.row, |
| bc + search_sites->site[s][next_chkpts_indices[i]].mv.col |
| }; |
| thissad = get_mvpred_sad( |
| ms_params, src, get_buf_from_fullmv(ref, &this_mv), ref_stride); |
| const int found_better_mv = |
| update_mvs_and_sad(thissad, &this_mv, mv_cost_params, &bestsad, |
| &raw_bestsad, best_mv, |
| /*second_best_mv=*/NULL); |
| if (found_better_mv) best_site = i; |
| } |
| } else { |
| for (i = 0; i < PATTERN_CANDIDATES_REF; i++) { |
| const FULLPEL_MV this_mv = { |
| br + search_sites->site[s][next_chkpts_indices[i]].mv.row, |
| bc + search_sites->site[s][next_chkpts_indices[i]].mv.col |
| }; |
| if (!av1_is_fullmv_in_range(&ms_params->mv_limits, this_mv)) |
| continue; |
| thissad = get_mvpred_sad( |
| ms_params, src, get_buf_from_fullmv(ref, &this_mv), ref_stride); |
| const int found_better_mv = |
| update_mvs_and_sad(thissad, &this_mv, mv_cost_params, &bestsad, |
| &raw_bestsad, best_mv, |
| /*second_best_mv=*/NULL); |
| if (found_better_mv) best_site = i; |
| } |
| } |
| |
| if (best_site != -1) { |
| k = next_chkpts_indices[best_site]; |
| br += search_sites->site[s][k].mv.row; |
| bc += search_sites->site[s][k].mv.col; |
| } |
| } while (best_site != -1); |
| } |
| |
| // Note: If we enter the if below, then cost_list must be non-NULL. |
| if (s == 0) { |
| cost_list[0] = raw_bestsad; |
| costlist_has_sad = 1; |
| if (!do_init_search || s != best_init_s) { |
| if (check_bounds(&ms_params->mv_limits, br, bc, 1 << s)) { |
| for (i = 0; i < num_candidates[s]; i++) { |
| const FULLPEL_MV this_mv = { br + search_sites->site[s][i].mv.row, |
| bc + search_sites->site[s][i].mv.col }; |
| cost_list[i + 1] = thissad = get_mvpred_sad( |
| ms_params, src, get_buf_from_fullmv(ref, &this_mv), ref_stride); |
| const int found_better_mv = |
| update_mvs_and_sad(thissad, &this_mv, mv_cost_params, &bestsad, |
| &raw_bestsad, best_mv, |
| /*second_best_mv=*/NULL); |
| if (found_better_mv) best_site = i; |
| } |
| } else { |
| for (i = 0; i < num_candidates[s]; i++) { |
| const FULLPEL_MV this_mv = { br + search_sites->site[s][i].mv.row, |
| bc + search_sites->site[s][i].mv.col }; |
| if (!av1_is_fullmv_in_range(&ms_params->mv_limits, this_mv)) |
| continue; |
| cost_list[i + 1] = thissad = get_mvpred_sad( |
| ms_params, src, get_buf_from_fullmv(ref, &this_mv), ref_stride); |
| const int found_better_mv = |
| update_mvs_and_sad(thissad, &this_mv, mv_cost_params, &bestsad, |
| &raw_bestsad, best_mv, |
| /*second_best_mv=*/NULL); |
| if (found_better_mv) best_site = i; |
| } |
| } |
| |
| if (best_site != -1) { |
| br += search_sites->site[s][best_site].mv.row; |
| bc += search_sites->site[s][best_site].mv.col; |
| k = best_site; |
| } |
| } |
| while (best_site != -1) { |
| int next_chkpts_indices[PATTERN_CANDIDATES_REF]; |
| best_site = -1; |
| next_chkpts_indices[0] = (k == 0) ? num_candidates[s] - 1 : k - 1; |
| next_chkpts_indices[1] = k; |
| next_chkpts_indices[2] = (k == num_candidates[s] - 1) ? 0 : k + 1; |
| cost_list[1] = cost_list[2] = cost_list[3] = cost_list[4] = INT_MAX; |
| cost_list[((k + 2) % 4) + 1] = cost_list[0]; |
| cost_list[0] = raw_bestsad; |
| |
| if (check_bounds(&ms_params->mv_limits, br, bc, 1 << s)) { |
| for (i = 0; i < PATTERN_CANDIDATES_REF; i++) { |
| const FULLPEL_MV this_mv = { |
| br + search_sites->site[s][next_chkpts_indices[i]].mv.row, |
| bc + search_sites->site[s][next_chkpts_indices[i]].mv.col |
| }; |
| cost_list[next_chkpts_indices[i] + 1] = thissad = get_mvpred_sad( |
| ms_params, src, get_buf_from_fullmv(ref, &this_mv), ref_stride); |
| const int found_better_mv = |
| update_mvs_and_sad(thissad, &this_mv, mv_cost_params, &bestsad, |
| &raw_bestsad, best_mv, |
| /*second_best_mv=*/NULL); |
| if (found_better_mv) best_site = i; |
| } |
| } else { |
| for (i = 0; i < PATTERN_CANDIDATES_REF; i++) { |
| const FULLPEL_MV this_mv = { |
| br + search_sites->site[s][next_chkpts_indices[i]].mv.row, |
| bc + search_sites->site[s][next_chkpts_indices[i]].mv.col |
| }; |
| if (!av1_is_fullmv_in_range(&ms_params->mv_limits, this_mv)) { |
| cost_list[next_chkpts_indices[i] + 1] = INT_MAX; |
| continue; |
| } |
| cost_list[next_chkpts_indices[i] + 1] = thissad = get_mvpred_sad( |
| ms_params, src, get_buf_from_fullmv(ref, &this_mv), ref_stride); |
| const int found_better_mv = |
| update_mvs_and_sad(thissad, &this_mv, mv_cost_params, &bestsad, |
| &raw_bestsad, best_mv, |
| /*second_best_mv=*/NULL); |
| if (found_better_mv) best_site = i; |
| } |
| } |
| |
| if (best_site != -1) { |
| k = next_chkpts_indices[best_site]; |
| br += search_sites->site[s][k].mv.row; |
| bc += search_sites->site[s][k].mv.col; |
| } |
| } |
| } |
| } |
| |
| best_mv->row = br; |
| best_mv->col = bc; |
| |
| // Returns the one-away integer pel cost/sad around the best as follows: |
| // cost_list[0]: cost/sad at the best integer pel |
| // cost_list[1]: cost/sad at delta {0, -1} (left) from the best integer pel |
| // cost_list[2]: cost/sad at delta { 1, 0} (bottom) from the best integer pel |
| // cost_list[3]: cost/sad at delta { 0, 1} (right) from the best integer pel |
| // cost_list[4]: cost/sad at delta {-1, 0} (top) from the best integer pel |
| if (cost_list) { |
| if (USE_SAD_COSTLIST) { |
| calc_int_sad_list(*best_mv, ms_params, cost_list, costlist_has_sad); |
| } else { |
| calc_int_cost_list(*best_mv, ms_params, cost_list); |
| } |
| } |
| best_mv->row = br; |
| best_mv->col = bc; |
| |
| const int var_cost = get_mvpred_var_cost(ms_params, best_mv); |
| return var_cost; |
| } |
| |
| // For the following foo_search, the input arguments are: |
| // start_mv: where we are starting our motion search |
| // ms_params: a collection of motion search parameters |
| // search_step: how many steps to skip in our motion search. For example, |
| // a value 3 suggests that 3 search steps have already taken place prior to |
| // this function call, so we jump directly to step 4 of the search process |
| // do_init_search: if on, do an initial search of all possible scales around the |
| // start_mv, and then pick the best scale. |
| // cond_list: used to hold the cost around the best full mv so we can use it to |
| // speed up subpel search later. |
| // best_mv: the best mv found in the motion search |
| static int hex_search(const FULLPEL_MV start_mv, |
| const FULLPEL_MOTION_SEARCH_PARAMS *ms_params, |
| const int search_step, const int do_init_search, |
| int *cost_list, FULLPEL_MV *best_mv) { |
| return pattern_search(start_mv, ms_params, search_step, do_init_search, |
| cost_list, best_mv); |
| } |
| |
| static int bigdia_search(const FULLPEL_MV start_mv, |
| const FULLPEL_MOTION_SEARCH_PARAMS *ms_params, |
| const int search_step, const int do_init_search, |
| int *cost_list, FULLPEL_MV *best_mv) { |
| return pattern_search(start_mv, ms_params, search_step, do_init_search, |
| cost_list, best_mv); |
| } |
| |
| static int square_search(const FULLPEL_MV start_mv, |
| const FULLPEL_MOTION_SEARCH_PARAMS *ms_params, |
| const int search_step, const int do_init_search, |
| int *cost_list, FULLPEL_MV *best_mv) { |
| return pattern_search(start_mv, ms_params, search_step, do_init_search, |
| cost_list, best_mv); |
| } |
| |
| static int fast_hex_search(const FULLPEL_MV start_mv, |
| const FULLPEL_MOTION_SEARCH_PARAMS *ms_params, |
| const int search_step, const int do_init_search, |
| int *cost_list, FULLPEL_MV *best_mv) { |
| return hex_search(start_mv, ms_params, |
| AOMMAX(MAX_MVSEARCH_STEPS - 2, search_step), do_init_search, |
| cost_list, best_mv); |
| } |
| |
| static int fast_dia_search(const FULLPEL_MV start_mv, |
| const FULLPEL_MOTION_SEARCH_PARAMS *ms_params, |
| const int search_step, const int do_init_search, |
| int *cost_list, FULLPEL_MV *best_mv) { |
| return bigdia_search(start_mv, ms_params, |
| AOMMAX(MAX_MVSEARCH_STEPS - 2, search_step), |
| do_init_search, cost_list, best_mv); |
| } |
| |
| static int fast_bigdia_search(const FULLPEL_MV start_mv, |
| const FULLPEL_MOTION_SEARCH_PARAMS *ms_params, |
| const int search_step, const int do_init_search, |
| int *cost_list, FULLPEL_MV *best_mv) { |
| return bigdia_search(start_mv, ms_params, |
| AOMMAX(MAX_MVSEARCH_STEPS - 3, search_step), |
| do_init_search, cost_list, best_mv); |
| } |
| |
| static int diamond_search_sad(FULLPEL_MV start_mv, |
| const FULLPEL_MOTION_SEARCH_PARAMS *ms_params, |
| const int search_step, int *num00, |
| FULLPEL_MV *best_mv, FULLPEL_MV *second_best_mv) { |
| const struct buf_2d *const src = ms_params->ms_buffers.src; |
| const struct buf_2d *const ref = ms_params->ms_buffers.ref; |
| |
| const int ref_stride = ref->stride; |
| const uint8_t *best_address; |
| |
| const uint8_t *mask = ms_params->ms_buffers.mask; |
| const uint8_t *second_pred = ms_params->ms_buffers.second_pred; |
| const MV_COST_PARAMS *mv_cost_params = &ms_params->mv_cost_params; |
| |
| const search_site_config *cfg = ms_params->search_sites; |
| |
| unsigned int bestsad = INT_MAX; |
| int best_site = 0; |
| int is_off_center = 0; |
| |
| clamp_fullmv(&start_mv, &ms_params->mv_limits); |
| |
| // search_step determines the length of the initial step and hence the number |
| // of iterations. |
| const int tot_steps = cfg->num_search_steps - search_step; |
| |
| *num00 = 0; |
| *best_mv = start_mv; |
| |
| // Check the starting position |
| best_address = get_buf_from_fullmv(ref, &start_mv); |
| bestsad = get_mvpred_compound_sad(ms_params, src, best_address, ref_stride); |
| bestsad += mvsad_err_cost_(best_mv, &ms_params->mv_cost_params); |
| |
| int next_step_size = tot_steps > 2 ? cfg->radius[tot_steps - 2] : 1; |
| for (int step = tot_steps - 1; step >= 0; --step) { |
| const search_site *site = cfg->site[step]; |
| best_site = 0; |
| if (step > 0) next_step_size = cfg->radius[step - 1]; |
| |
| int all_in = 1, j; |
| // Trap illegal vectors |
| all_in &= best_mv->row + site[1].mv.row >= ms_params->mv_limits.row_min; |
| all_in &= best_mv->row + site[2].mv.row <= ms_params->mv_limits.row_max; |
| all_in &= best_mv->col + site[3].mv.col >= ms_params->mv_limits.col_min; |
| all_in &= best_mv->col + site[4].mv.col <= ms_params->mv_limits.col_max; |
| |
| // TODO(anyone): Implement 4 points search for msdf&sdaf |
| if (all_in && !mask && !second_pred) { |
| const uint8_t *src_buf = src->buf; |
| const int src_stride = src->stride; |
| for (int idx = 1; idx <= cfg->searches_per_step[step]; idx += 4) { |
| unsigned char const *block_offset[4]; |
| unsigned int sads[4]; |
| |
| for (j = 0; j < 4; j++) |
| block_offset[j] = site[idx + j].offset + best_address; |
| |
| ms_params->sdx4df(src_buf, src_stride, block_offset, ref_stride, sads); |
| for (j = 0; j < 4; j++) { |
| if (sads[j] < bestsad) { |
| const FULLPEL_MV this_mv = { best_mv->row + site[idx + j].mv.row, |
| best_mv->col + site[idx + j].mv.col }; |
| unsigned int thissad = |
| sads[j] + mvsad_err_cost_(&this_mv, mv_cost_params); |
| if (thissad < bestsad) { |
| bestsad = thissad; |
| best_site = idx + j; |
| } |
| } |
| } |
| } |
| } else { |
| for (int idx = 1; idx <= cfg->searches_per_step[step]; idx++) { |
| const FULLPEL_MV this_mv = { best_mv->row + site[idx].mv.row, |
| best_mv->col + site[idx].mv.col }; |
| |
| if (av1_is_fullmv_in_range(&ms_params->mv_limits, this_mv)) { |
| const uint8_t *const check_here = site[idx].offset + best_address; |
| unsigned int thissad; |
| |
| thissad = |
| get_mvpred_compound_sad(ms_params, src, check_here, ref_stride); |
| |
| if (thissad < bestsad) { |
| thissad += mvsad_err_cost_(&this_mv, mv_cost_params); |
| if (thissad < bestsad) { |
| bestsad = thissad; |
| best_site = idx; |
| } |
| } |
| } |
| } |
| } |
| |
| if (best_site != 0) { |
| if (second_best_mv) { |
| *second_best_mv = *best_mv; |
| } |
| best_mv->row += site[best_site].mv.row; |
| best_mv->col += site[best_site].mv.col; |
| best_address += site[best_site].offset; |
| is_off_center = 1; |
| } |
| |
| if (is_off_center == 0) (*num00)++; |
| |
| if (best_site == 0) { |
| while (next_step_size == cfg->radius[step] && step > 2) { |
| ++(*num00); |
| --step; |
| next_step_size = cfg->radius[step - 1]; |
| } |
| } |
| } |
| |
| return bestsad; |
| } |
| |
| /* do_refine: If last step (1-away) of n-step search doesn't pick the center |
| point as the best match, we will do a final 1-away diamond |
| refining search */ |
| static int full_pixel_diamond(const FULLPEL_MV start_mv, |
| const FULLPEL_MOTION_SEARCH_PARAMS *ms_params, |
| const int step_param, int *cost_list, |
| FULLPEL_MV *best_mv, FULLPEL_MV *second_best_mv) { |
| const search_site_config *cfg = ms_params->search_sites; |
| int thissme, n, num00 = 0; |
| int bestsme = diamond_search_sad(start_mv, ms_params, step_param, &n, best_mv, |
| second_best_mv); |
| |
| if (bestsme < INT_MAX) { |
| bestsme = get_mvpred_compound_var_cost(ms_params, best_mv); |
| } |
| |
| // If there won't be more n-step search, check to see if refining search is |
| // needed. |
| const int further_steps = cfg->num_search_steps - 1 - step_param; |
| while (n < further_steps) { |
| ++n; |
| |
| if (num00) { |
| num00--; |
| } else { |
| // TODO(chiyotsai@google.com): There is another bug here where the second |
| // best mv gets incorrectly overwritten. Fix it later. |
| FULLPEL_MV tmp_best_mv; |
| thissme = diamond_search_sad(start_mv, ms_params, step_param + n, &num00, |
| &tmp_best_mv, second_best_mv); |
| |
| if (thissme < INT_MAX) { |
| thissme = get_mvpred_compound_var_cost(ms_params, &tmp_best_mv); |
| } |
| |
| if (thissme < bestsme) { |
| bestsme = thissme; |
| *best_mv = tmp_best_mv; |
| } |
| } |
| } |
| |
| // Return cost list. |
| if (cost_list) { |
| if (USE_SAD_COSTLIST) { |
| const int costlist_has_sad = 0; |
| calc_int_sad_list(*best_mv, ms_params, cost_list, costlist_has_sad); |
| } else { |
| calc_int_cost_list(*best_mv, ms_params, cost_list); |
| } |
| } |
| return bestsme; |
| } |
| |
| // Exhaustive motion search around a given centre position with a given |
| // step size. |
| static int exhaustive_mesh_search(FULLPEL_MV start_mv, |
| const FULLPEL_MOTION_SEARCH_PARAMS *ms_params, |
| const int range, const int step, |
| FULLPEL_MV *best_mv, |
| FULLPEL_MV *second_best_mv) { |
| const MV_COST_PARAMS *mv_cost_params = &ms_params->mv_cost_params; |
| const struct buf_2d *const src = ms_params->ms_buffers.src; |
| const struct buf_2d *const ref = ms_params->ms_buffers.ref; |
| const int ref_stride = ref->stride; |
| unsigned int best_sad = INT_MAX; |
| int r, c, i; |
| int start_col, end_col, start_row, end_row; |
| const int col_step = (step > 1) ? step : 4; |
| |
| assert(step >= 1); |
| |
| clamp_fullmv(&start_mv, &ms_params->mv_limits); |
| *best_mv = start_mv; |
| best_sad = get_mvpred_sad(ms_params, src, get_buf_from_fullmv(ref, &start_mv), |
| ref_stride); |
| best_sad += mvsad_err_cost_(&start_mv, mv_cost_params); |
| start_row = AOMMAX(-range, ms_params->mv_limits.row_min - start_mv.row); |
| start_col = AOMMAX(-range, ms_params->mv_limits.col_min - start_mv.col); |
| end_row = AOMMIN(range, ms_params->mv_limits.row_max - start_mv.row); |
| end_col = AOMMIN(range, ms_params->mv_limits.col_max - start_mv.col); |
| |
| for (r = start_row; r <= end_row; r += step) { |
| for (c = start_col; c <= end_col; c += col_step) { |
| // Step > 1 means we are not checking every location in this pass. |
| if (step > 1) { |
| const FULLPEL_MV mv = { start_mv.row + r, start_mv.col + c }; |
| unsigned int sad = get_mvpred_sad( |
| ms_params, src, get_buf_from_fullmv(ref, &mv), ref_stride); |
| update_mvs_and_sad(sad, &mv, mv_cost_params, &best_sad, |
| /*raw_best_sad=*/NULL, best_mv, second_best_mv); |
| } else { |
| // 4 sads in a single call if we are checking every location |
| if (c + 3 <= end_col) { |
| unsigned int sads[4]; |
| const uint8_t *addrs[4]; |
| for (i = 0; i < 4; ++i) { |
| const FULLPEL_MV mv = { start_mv.row + r, start_mv.col + c + i }; |
| addrs[i] = get_buf_from_fullmv(ref, &mv); |
| } |
| |
| ms_params->sdx4df(src->buf, src->stride, addrs, ref_stride, sads); |
| |
| for (i = 0; i < 4; ++i) { |
| if (sads[i] < best_sad) { |
| const FULLPEL_MV mv = { start_mv.row + r, start_mv.col + c + i }; |
| update_mvs_and_sad(sads[i], &mv, mv_cost_params, &best_sad, |
| /*raw_best_sad=*/NULL, best_mv, |
| second_best_mv); |
| } |
| } |
| } else { |
| for (i = 0; i < end_col - c; ++i) { |
| const FULLPEL_MV mv = { start_mv.row + r, start_mv.col + c + i }; |
| unsigned int sad = get_mvpred_sad( |
| ms_params, src, get_buf_from_fullmv(ref, &mv), ref_stride); |
| update_mvs_and_sad(sad, &mv, mv_cost_params, &best_sad, |
| /*raw_best_sad=*/NULL, best_mv, second_best_mv); |
| } |
| } |
| } |
| } |
| } |
| |
| return best_sad; |
| } |
| |
| // Runs an limited range exhaustive mesh search using a pattern set |
| // according to the encode speed profile. |
| static int full_pixel_exhaustive(const FULLPEL_MV start_mv, |
| const FULLPEL_MOTION_SEARCH_PARAMS *ms_params, |
| const struct MESH_PATTERN *const mesh_patterns, |
| int *cost_list, FULLPEL_MV *best_mv, |
| FULLPEL_MV *second_best_mv) { |
| const int kMinRange = 7; |
| const int kMaxRange = 256; |
| const int kMinInterval = 1; |
| |
| int bestsme; |
| int i; |
| int interval = mesh_patterns[0].interval; |
| int range = mesh_patterns[0].range; |
| int baseline_interval_divisor; |
| |
| *best_mv = start_mv; |
| |
| // Trap illegal values for interval and range for this function. |
| if ((range < kMinRange) || (range > kMaxRange) || (interval < kMinInterval) || |
| (interval > range)) |
| return INT_MAX; |
| |
| baseline_interval_divisor = range / interval; |
| |
| // Check size of proposed first range against magnitude of the centre |
| // value used as a starting point. |
| range = AOMMAX(range, (5 * AOMMAX(abs(best_mv->row), abs(best_mv->col))) / 4); |
| range = AOMMIN(range, kMaxRange); |
| interval = AOMMAX(interval, range / baseline_interval_divisor); |
| // Use a small search step/interval for certain kind of clips. |
| // For example, screen content clips with a lot of texts. |
| // Large interval could lead to a false matching position, and it can't find |
| // the best global candidate in following iterations due to reduced search |
| // range. The solution here is to use a small search iterval in the beginning |
| // and thus reduces the chance of missing the best candidate. |
| if (ms_params->fine_search_interval) { |
| interval = AOMMIN(interval, 4); |
| } |
| |
| // initial search |
| bestsme = exhaustive_mesh_search(*best_mv, ms_params, range, interval, |
| best_mv, second_best_mv); |
| |
| if ((interval > kMinInterval) && (range > kMinRange)) { |
| // Progressive searches with range and step size decreasing each time |
| // till we reach a step size of 1. Then break out. |
| for (i = 1; i < MAX_MESH_STEP; ++i) { |
| // First pass with coarser step and longer range |
| bestsme = exhaustive_mesh_search( |
| *best_mv, ms_params, mesh_patterns[i].range, |
| mesh_patterns[i].interval, best_mv, second_best_mv); |
| |
| if (mesh_patterns[i].interval == 1) break; |
| } |
| } |
| |
| if (bestsme < INT_MAX) { |
| bestsme = get_mvpred_var_cost(ms_params, best_mv); |
| } |
| |
| // Return cost list. |
| if (cost_list) { |
| if (USE_SAD_COSTLIST) { |
| const int costlist_has_sad = 0; |
| calc_int_sad_list(*best_mv, ms_params, cost_list, costlist_has_sad); |
| } else { |
| calc_int_cost_list(*best_mv, ms_params, cost_list); |
| } |
| } |
| return bestsme; |
| } |
| |
| // This function is called when we do joint motion search in comp_inter_inter |
| // mode, or when searching for one component of an ext-inter compound mode. |
| int av1_refining_search_8p_c(const FULLPEL_MOTION_SEARCH_PARAMS *ms_params, |
| const FULLPEL_MV start_mv, FULLPEL_MV *best_mv) { |
| static const search_neighbors neighbors[8] = { |
| { { -1, 0 }, -1 * SEARCH_GRID_STRIDE_8P + 0 }, |
| { { 0, -1 }, 0 * SEARCH_GRID_STRIDE_8P - 1 }, |
| { { 0, 1 }, 0 * SEARCH_GRID_STRIDE_8P + 1 }, |
| { { 1, 0 }, 1 * SEARCH_GRID_STRIDE_8P + 0 }, |
| { { -1, -1 }, -1 * SEARCH_GRID_STRIDE_8P - 1 }, |
| { { 1, -1 }, 1 * SEARCH_GRID_STRIDE_8P - 1 }, |
| { { -1, 1 }, -1 * SEARCH_GRID_STRIDE_8P + 1 }, |
| { { 1, 1 }, 1 * SEARCH_GRID_STRIDE_8P + 1 } |
| }; |
| |
| uint8_t do_refine_search_grid[SEARCH_GRID_STRIDE_8P * |
| SEARCH_GRID_STRIDE_8P] = { 0 }; |
| int grid_center = SEARCH_GRID_CENTER_8P; |
| int grid_coord = grid_center; |
| |
| const MV_COST_PARAMS *mv_cost_params = &ms_params->mv_cost_params; |
| const FullMvLimits *mv_limits = &ms_params->mv_limits; |
| const MSBuffers *ms_buffers = &ms_params->ms_buffers; |
| const struct buf_2d *src = ms_buffers->src; |
| const struct buf_2d *ref = ms_buffers->ref; |
| const int ref_stride = ref->stride; |
| |
| *best_mv = start_mv; |
| clamp_fullmv(best_mv, mv_limits); |
| |
| unsigned int best_sad = get_mvpred_compound_sad( |
| ms_params, src, get_buf_from_fullmv(ref, best_mv), ref_stride); |
| best_sad += mvsad_err_cost_(best_mv, mv_cost_params); |
| |
| do_refine_search_grid[grid_coord] = 1; |
| |
| for (int i = 0; i < SEARCH_RANGE_8P; ++i) { |
| int best_site = -1; |
| |
| for (int j = 0; j < 8; ++j) { |
| grid_coord = grid_center + neighbors[j].coord_offset; |
| if (do_refine_search_grid[grid_coord] == 1) { |
| continue; |
| } |
| const FULLPEL_MV mv = { best_mv->row + neighbors[j].coord.row, |
| best_mv->col + neighbors[j].coord.col }; |
| |
| do_refine_search_grid[grid_coord] = 1; |
| if (av1_is_fullmv_in_range(mv_limits, mv)) { |
| unsigned int sad; |
| sad = get_mvpred_compound_sad( |
| ms_params, src, get_buf_from_fullmv(ref, &mv), ref_stride); |
| if (sad < best_sad) { |
| sad += mvsad_err_cost_(&mv, mv_cost_params); |
| |
| if (sad < best_sad) { |
| best_sad = sad; |
| best_site = j; |
| } |
| } |
| } |
| } |
| |
| if (best_site == -1) { |
| break; |
| } else { |
| best_mv->row += neighbors[best_site].coord.row; |
| best_mv->col += neighbors[best_site].coord.col; |
| grid_center += neighbors[best_site].coord_offset; |
| } |
| } |
| return best_sad; |
| } |
| |
| int av1_full_pixel_search(const FULLPEL_MV start_mv, |
| const FULLPEL_MOTION_SEARCH_PARAMS *ms_params, |
| const int step_param, int *cost_list, |
| FULLPEL_MV *best_mv, FULLPEL_MV *second_best_mv) { |
| const BLOCK_SIZE bsize = ms_params->bsize; |
| const SEARCH_METHODS search_method = ms_params->search_method; |
| |
| const int is_intra_mode = ms_params->is_intra_mode; |
| int run_mesh_search = ms_params->run_mesh_search; |
| |
| int var = 0; |
| MARK_MV_INVALID(best_mv); |
| if (second_best_mv) { |
| MARK_MV_INVALID(second_best_mv); |
| } |
| |
| assert(ms_params->ms_buffers.second_pred == NULL && |
| ms_params->ms_buffers.mask == NULL && |
| "av1_full_pixel_search does not support compound pred"); |
| |
| if (cost_list) { |
| cost_list[0] = INT_MAX; |
| cost_list[1] = INT_MAX; |
| cost_list[2] = INT_MAX; |
| cost_list[3] = INT_MAX; |
| cost_list[4] = INT_MAX; |
| } |
| |
| switch (search_method) { |
| case FAST_BIGDIA: |
| var = fast_bigdia_search(start_mv, ms_params, step_param, 0, cost_list, |
| best_mv); |
| break; |
| case FAST_DIAMOND: |
| var = fast_dia_search(start_mv, ms_params, step_param, 0, cost_list, |
| best_mv); |
| break; |
| case FAST_HEX: |
| var = fast_hex_search(start_mv, ms_params, step_param, 0, cost_list, |
| best_mv); |
| break; |
| case HEX: |
| var = hex_search(start_mv, ms_params, step_param, 1, cost_list, best_mv); |
| break; |
| case SQUARE: |
| var = |
| square_search(start_mv, ms_params, step_param, 1, cost_list, best_mv); |
| break; |
| case BIGDIA: |
| var = |
| bigdia_search(start_mv, ms_params, step_param, 1, cost_list, best_mv); |
| break; |
| case NSTEP: |
| case DIAMOND: |
| var = full_pixel_diamond(start_mv, ms_params, step_param, cost_list, |
| best_mv, second_best_mv); |
| break; |
| default: assert(0 && "Invalid search method."); |
| } |
| |
| // Should we allow a follow on exhaustive search? |
| if (!run_mesh_search && search_method == NSTEP) { |
| int exhaustive_thr = ms_params->force_mesh_thresh; |
| exhaustive_thr >>= |
| 10 - (mi_size_wide_log2[bsize] + mi_size_high_log2[bsize]); |
| // Threshold variance for an exhaustive full search. |
| if (var > exhaustive_thr) run_mesh_search = 1; |
| } |
| |
| // TODO(yunqing): the following is used to reduce mesh search in temporal |
| // filtering. Can extend it to intrabc. |
| if (!is_intra_mode && ms_params->prune_mesh_search) { |
| const int full_pel_mv_diff = AOMMAX(abs(start_mv.row - best_mv->row), |
| abs(start_mv.col - best_mv->col)); |
| if (full_pel_mv_diff <= 4) { |
| run_mesh_search = 0; |
| } |
| } |
| |
| if (ms_params->sdf != ms_params->vfp->sdf) { |
| // If we are skipping rows when we perform the motion search, we need to |
| // check the quality of skipping. If it's bad, then we run mesh search with |
| // skip row features off. |
| // TODO(chiyotsai@google.com): Handle the case where we have a vertical |
| // offset of 1 before we hit this statement to avoid having to redo |
| // motion search. |
| const struct buf_2d *src = ms_params->ms_buffers.src; |
| const struct buf_2d *ref = ms_params->ms_buffers.ref; |
| const int src_stride = src->stride; |
| const int ref_stride = ref->stride; |
| |
| const uint8_t *src_address = src->buf; |
| const uint8_t *best_address = get_buf_from_fullmv(ref, best_mv); |
| const int sad = |
| ms_params->vfp->sdf(src_address, src_stride, best_address, ref_stride); |
| const int skip_sad = |
| ms_params->vfp->sdsf(src_address, src_stride, best_address, ref_stride); |
| // We will keep the result of skipping rows if it's good enough. Here, good |
| // enough means the error is less than 1 per pixel. |
| const int kSADThresh = |
| 1 << (mi_size_wide_log2[bsize] + mi_size_high_log2[bsize]); |
| if (sad > kSADThresh && abs(skip_sad - sad) * 10 >= AOMMAX(sad, 1) * 9) { |
| // There is a large discrepancy between skipping and not skipping, so we |
| // need to redo the motion search. |
| FULLPEL_MOTION_SEARCH_PARAMS new_ms_params = *ms_params; |
| new_ms_params.sdf = new_ms_params.vfp->sdf; |
| new_ms_params.sdx4df = new_ms_params.vfp->sdx4df; |
| |
| return av1_full_pixel_search(start_mv, &new_ms_params, step_param, |
| cost_list, best_mv, second_best_mv); |
| } |
| } |
| |
| if (run_mesh_search) { |
| int var_ex; |
| FULLPEL_MV tmp_mv_ex; |
| // Pick the mesh pattern for exhaustive search based on the toolset (intraBC |
| // or non-intraBC) |
| // TODO(chiyotsai@google.com): There is a bug here where the second best mv |
| // gets overwritten without actually comparing the rdcost. |
| const MESH_PATTERN *const mesh_patterns = |
| ms_params->mesh_patterns[is_intra_mode]; |
| // TODO(chiyotsai@google.com): the second best mv is not set correctly by |
| // full_pixel_exhaustive, which can incorrectly override it. |
| var_ex = full_pixel_exhaustive(*best_mv, ms_params, mesh_patterns, |
| cost_list, &tmp_mv_ex, second_best_mv); |
| if (var_ex < var) { |
| var = var_ex; |
| *best_mv = tmp_mv_ex; |
| } |
| } |
| |
| return var; |
| } |
| |
| int av1_intrabc_hash_search(const AV1_COMP *cpi, const MACROBLOCKD *xd, |
| const FULLPEL_MOTION_SEARCH_PARAMS *ms_params, |
| IntraBCHashInfo *intrabc_hash_info, |
| FULLPEL_MV *best_mv) { |
| if (!av1_use_hash_me(cpi)) return INT_MAX; |
| |
| const BLOCK_SIZE bsize = ms_params->bsize; |
| const int block_width = block_size_wide[bsize]; |
| const int block_height = block_size_high[bsize]; |
| |
| if (block_width != block_height) return INT_MAX; |
| |
| const FullMvLimits *mv_limits = &ms_params->mv_limits; |
| const MSBuffers *ms_buffer = &ms_params->ms_buffers; |
| |
| const uint8_t *src = ms_buffer->src->buf; |
| const int src_stride = ms_buffer->src->stride; |
| |
| const int mi_row = xd->mi_row; |
| const int mi_col = xd->mi_col; |
| const int x_pos = mi_col * MI_SIZE; |
| const int y_pos = mi_row * MI_SIZE; |
| |
| uint32_t hash_value1, hash_value2; |
| int best_hash_cost = INT_MAX; |
| |
| // for the hashMap |
| hash_table *ref_frame_hash = &intrabc_hash_info->intrabc_hash_table; |
| |
| av1_get_block_hash_value(intrabc_hash_info, src, src_stride, block_width, |
| &hash_value1, &hash_value2, is_cur_buf_hbd(xd)); |
| |
| const int count = av1_hash_table_count(ref_frame_hash, hash_value1); |
| if (count <= 1) { |
| return INT_MAX; |
| } |
| |
| Iterator iterator = av1_hash_get_first_iterator(ref_frame_hash, hash_value1); |
| for (int i = 0; i < count; i++, aom_iterator_increment(&iterator)) { |
| block_hash ref_block_hash = *(block_hash *)(aom_iterator_get(&iterator)); |
| if (hash_value2 == ref_block_hash.hash_value2) { |
| // Make sure the prediction is from valid area. |
| const MV dv = { GET_MV_SUBPEL(ref_block_hash.y - y_pos), |
| GET_MV_SUBPEL(ref_block_hash.x - x_pos) }; |
| if (!av1_is_dv_valid(dv, &cpi->common, xd, mi_row, mi_col, bsize, |
| cpi->common.seq_params.mib_size_log2)) |
| continue; |
| |
| FULLPEL_MV hash_mv; |
| hash_mv.col = ref_block_hash.x - x_pos; |
| hash_mv.row = ref_block_hash.y - y_pos; |
| if (!av1_is_fullmv_in_range(mv_limits, hash_mv)) continue; |
| const int refCost = get_mvpred_var_cost(ms_params, &hash_mv); |
| if (refCost < best_hash_cost) { |
| best_hash_cost = refCost; |
| *best_mv = hash_mv; |
| } |
| } |
| } |
| |
| return best_hash_cost; |
| } |
| |
| static int vector_match(int16_t *ref, int16_t *src, int bwl) { |
| int best_sad = INT_MAX; |
| int this_sad; |
| int d; |
| int center, offset = 0; |
| int bw = 4 << bwl; // redundant variable, to be changed in the experiments. |
| for (d = 0; d <= bw; d += 16) { |
| this_sad = aom_vector_var(&ref[d], src, bwl); |
| if (this_sad < best_sad) { |
| best_sad = this_sad; |
| offset = d; |
| } |
| } |
| center = offset; |
| |
| for (d = -8; d <= 8; d += 16) { |
| int this_pos = offset + d; |
| // check limit |
| if (this_pos < 0 || this_pos > bw) continue; |
| this_sad = aom_vector_var(&ref[this_pos], src, bwl); |
| if (this_sad < best_sad) { |
| best_sad = this_sad; |
| center = this_pos; |
| } |
| } |
| offset = center; |
| |
| for (d = -4; d <= 4; d += 8) { |
| int this_pos = offset + d; |
| // check limit |
| if (this_pos < 0 || this_pos > bw) continue; |
| this_sad = aom_vector_var(&ref[this_pos], src, bwl); |
| if (this_sad < best_sad) { |
| best_sad = this_sad; |
| center = this_pos; |
| } |
| } |
| offset = center; |
| |
| for (d = -2; d <= 2; d += 4) { |
| int this_pos = offset + d; |
| // check limit |
| if (this_pos < 0 || this_pos > bw) continue; |
| this_sad = aom_vector_var(&ref[this_pos], src, bwl); |
| if (this_sad < best_sad) { |
| best_sad = this_sad; |
| center = this_pos; |
| } |
| } |
| offset = center; |
| |
| for (d = -1; d <= 1; d += 2) { |
| int this_pos = offset + d; |
| // check limit |
| if (this_pos < 0 || this_pos > bw) continue; |
| this_sad = aom_vector_var(&ref[this_pos], src, bwl); |
| if (this_sad < best_sad) { |
| best_sad = this_sad; |
| center = this_pos; |
| } |
| } |
| |
| return (center - (bw >> 1)); |
| } |
| |
| // A special fast version of motion search used in rt mode |
| unsigned int av1_int_pro_motion_estimation(const AV1_COMP *cpi, MACROBLOCK *x, |
| BLOCK_SIZE bsize, int mi_row, |
| int mi_col, const MV *ref_mv) { |
| MACROBLOCKD *xd = &x->e_mbd; |
| MB_MODE_INFO *mi = xd->mi[0]; |
| struct buf_2d backup_yv12[MAX_MB_PLANE] = { { 0, 0, 0, 0, 0 } }; |
| DECLARE_ALIGNED(16, int16_t, hbuf[256]); |
| DECLARE_ALIGNED(16, int16_t, vbuf[256]); |
| DECLARE_ALIGNED(16, int16_t, src_hbuf[128]); |
| DECLARE_ALIGNED(16, int16_t, src_vbuf[128]); |
| int idx; |
| const int bw = 4 << mi_size_wide_log2[bsize]; |
| const int bh = 4 << mi_size_high_log2[bsize]; |
| const int search_width = bw << 1; |
| const int search_height = bh << 1; |
| const int src_stride = x->plane[0].src.stride; |
| const int ref_stride = xd->plane[0].pre[0].stride; |
| uint8_t const *ref_buf, *src_buf; |
| int_mv *best_int_mv = &xd->mi[0]->mv[0]; |
| unsigned int best_sad, tmp_sad, this_sad[4]; |
| const int norm_factor = 3 + (bw >> 5); |
| const YV12_BUFFER_CONFIG *scaled_ref_frame = |
| av1_get_scaled_ref_frame(cpi, mi->ref_frame[0]); |
| static const MV search_pos[4] = { |
| { -1, 0 }, |
| { 0, -1 }, |
| { 0, 1 }, |
| { 1, 0 }, |
| }; |
| |
| 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]; |
| av1_setup_pre_planes(xd, 0, scaled_ref_frame, mi_row, mi_col, NULL, |
| MAX_MB_PLANE); |
| } |
| |
| if (xd->bd != 8) { |
| unsigned int sad; |
| best_int_mv->as_fullmv = kZeroFullMv; |
| sad = cpi->fn_ptr[bsize].sdf(x->plane[0].src.buf, src_stride, |
| xd->plane[0].pre[0].buf, ref_stride); |
| |
| if (scaled_ref_frame) { |
| int i; |
| for (i = 0; i < MAX_MB_PLANE; i++) xd->plane[i].pre[0] = backup_yv12[i]; |
| } |
| return sad; |
| } |
| |
| // Set up prediction 1-D reference set |
| ref_buf = xd->plane[0].pre[0].buf - (bw >> 1); |
| for (idx = 0; idx < search_width; idx += 16) { |
| aom_int_pro_row(&hbuf[idx], ref_buf, ref_stride, bh); |
| ref_buf += 16; |
| } |
| |
| ref_buf = xd->plane[0].pre[0].buf - (bh >> 1) * ref_stride; |
| for (idx = 0; idx < search_height; ++idx) { |
| vbuf[idx] = aom_int_pro_col(ref_buf, bw) >> norm_factor; |
| ref_buf += ref_stride; |
| } |
| |
| // Set up src 1-D reference set |
| for (idx = 0; idx < bw; idx += 16) { |
| src_buf = x->plane[0].src.buf + idx; |
| aom_int_pro_row(&src_hbuf[idx], src_buf, src_stride, bh); |
| } |
| |
| src_buf = x->plane[0].src.buf; |
| for (idx = 0; idx < bh; ++idx) { |
| src_vbuf[idx] = aom_int_pro_col(src_buf, bw) >> norm_factor; |
| src_buf += src_stride; |
| } |
| |
| // Find the best match per 1-D search |
| best_int_mv->as_fullmv.col = |
| vector_match(hbuf, src_hbuf, mi_size_wide_log2[bsize]); |
| best_int_mv->as_fullmv.row = |
| vector_match(vbuf, src_vbuf, mi_size_high_log2[bsize]); |
| |
| FULLPEL_MV this_mv = best_int_mv->as_fullmv; |
| src_buf = x->plane[0].src.buf; |
| ref_buf = get_buf_from_fullmv(&xd->plane[0].pre[0], &this_mv); |
| best_sad = cpi->fn_ptr[bsize].sdf(src_buf, src_stride, ref_buf, ref_stride); |
| |
| { |
| const uint8_t *const pos[4] = { |
| ref_buf - ref_stride, |
| ref_buf - 1, |
| ref_buf + 1, |
| ref_buf + ref_stride, |
| }; |
| |
| cpi->fn_ptr[bsize].sdx4df(src_buf, src_stride, pos, ref_stride, this_sad); |
| } |
| |
| for (idx = 0; idx < 4; ++idx) { |
| if (this_sad[idx] < best_sad) { |
| best_sad = this_sad[idx]; |
| best_int_mv->as_fullmv.row = search_pos[idx].row + this_mv.row; |
| best_int_mv->as_fullmv.col = search_pos[idx].col + this_mv.col; |
| } |
| } |
| |
| if (this_sad[0] < this_sad[3]) |
| this_mv.row -= 1; |
| else |
| this_mv.row += 1; |
| |
| if (this_sad[1] < this_sad[2]) |
| this_mv.col -= 1; |
| else |
| this_mv.col += 1; |
| |
| ref_buf = get_buf_from_fullmv(&xd->plane[0].pre[0], &this_mv); |
| |
| tmp_sad = cpi->fn_ptr[bsize].sdf(src_buf, src_stride, ref_buf, ref_stride); |
| if (best_sad > tmp_sad) { |
| best_int_mv->as_fullmv = this_mv; |
| best_sad = tmp_sad; |
| } |
| |
| convert_fullmv_to_mv(best_int_mv); |
| |
| SubpelMvLimits subpel_mv_limits; |
| av1_set_subpel_mv_search_range(&subpel_mv_limits, &x->mv_limits, ref_mv); |
| clamp_mv(&best_int_mv->as_mv, &subpel_mv_limits); |
| |
| if (scaled_ref_frame) { |
| int i; |
| for (i = 0; i < MAX_MB_PLANE; i++) xd->plane[i].pre[0] = backup_yv12[i]; |
| } |
| |
| return best_sad; |
| } |
| |
| // ============================================================================= |
| // Fullpixel Motion Search: OBMC |
| // ============================================================================= |
| static INLINE int get_obmc_mvpred_var( |
| const FULLPEL_MOTION_SEARCH_PARAMS *ms_params, const FULLPEL_MV *this_mv) { |
| const aom_variance_fn_ptr_t *vfp = ms_params->vfp; |
| const MV_COST_PARAMS *mv_cost_params = &ms_params->mv_cost_params; |
| const MSBuffers *ms_buffers = &ms_params->ms_buffers; |
| const int32_t *wsrc = ms_buffers->wsrc; |
| const int32_t *mask = ms_buffers->obmc_mask; |
| const struct buf_2d *ref_buf = ms_buffers->ref; |
| |
| const MV mv = get_mv_from_fullmv(this_mv); |
| unsigned int unused; |
| |
| return vfp->ovf(get_buf_from_fullmv(ref_buf, this_mv), ref_buf->stride, wsrc, |
| mask, &unused) + |
| mv_err_cost_(&mv, mv_cost_params); |
| } |
| |
| static int obmc_refining_search_sad( |
| const FULLPEL_MOTION_SEARCH_PARAMS *ms_params, FULLPEL_MV *best_mv) { |
| const aom_variance_fn_ptr_t *fn_ptr = ms_params->vfp; |
| const MV_COST_PARAMS *mv_cost_params = &ms_params->mv_cost_params; |
| const MSBuffers *ms_buffers = &ms_params->ms_buffers; |
| const int32_t *wsrc = ms_buffers->wsrc; |
| const int32_t *mask = ms_buffers->obmc_mask; |
| const struct buf_2d *ref_buf = ms_buffers->ref; |
| const FULLPEL_MV neighbors[4] = { { -1, 0 }, { 0, -1 }, { 0, 1 }, { 1, 0 } }; |
| const int kSearchRange = 8; |
| |
| unsigned int best_sad = fn_ptr->osdf(get_buf_from_fullmv(ref_buf, best_mv), |
| ref_buf->stride, wsrc, mask) + |
| mvsad_err_cost_(best_mv, mv_cost_params); |
| |
| for (int i = 0; i < kSearchRange; i++) { |
| int best_site = -1; |
| |
| for (int j = 0; j < 4; j++) { |
| const FULLPEL_MV mv = { best_mv->row + neighbors[j].row, |
| best_mv->col + neighbors[j].col }; |
| if (av1_is_fullmv_in_range(&ms_params->mv_limits, mv)) { |
| unsigned int sad = fn_ptr->osdf(get_buf_from_fullmv(ref_buf, &mv), |
| ref_buf->stride, wsrc, mask); |
| if (sad < best_sad) { |
| sad += mvsad_err_cost_(&mv, mv_cost_params); |
| |
| if (sad < best_sad) { |
| best_sad = sad; |
| best_site = j; |
| } |
| } |
| } |
| } |
| |
| if (best_site == -1) { |
| break; |
| } else { |
| best_mv->row += neighbors[best_site].row; |
| best_mv->col += neighbors[best_site].col; |
| } |
| } |
| return best_sad; |
| } |
| |
| static int obmc_diamond_search_sad( |
| const FULLPEL_MOTION_SEARCH_PARAMS *ms_params, FULLPEL_MV start_mv, |
| FULLPEL_MV *best_mv, int search_step, int *num00) { |
| const aom_variance_fn_ptr_t *fn_ptr = ms_params->vfp; |
| const search_site_config *cfg = ms_params->search_sites; |
| const MV_COST_PARAMS *mv_cost_params = &ms_params->mv_cost_params; |
| const MSBuffers *ms_buffers = &ms_params->ms_buffers; |
| const int32_t *wsrc = ms_buffers->wsrc; |
| const int32_t *mask = ms_buffers->obmc_mask; |
| const struct buf_2d *const ref_buf = ms_buffers->ref; |
| // search_step determines the length of the initial step and hence the number |
| // of iterations |
| // 0 = initial step (MAX_FIRST_STEP) pel : 1 = (MAX_FIRST_STEP/2) pel, 2 = |
| // (MAX_FIRST_STEP/4) pel... etc. |
| |
| const int tot_steps = MAX_MVSEARCH_STEPS - 1 - search_step; |
| const uint8_t *best_address, *init_ref; |
| int best_sad = INT_MAX; |
| int best_site = 0; |
| int step; |
| |
| clamp_fullmv(&start_mv, &ms_params->mv_limits); |
| best_address = init_ref = get_buf_from_fullmv(ref_buf, &start_mv); |
| *num00 = 0; |
| *best_mv = start_mv; |
| |
| // Check the starting position |
| best_sad = fn_ptr->osdf(best_address, ref_buf->stride, wsrc, mask) + |
| mvsad_err_cost_(best_mv, mv_cost_params); |
| |
| for (step = tot_steps; step >= 0; --step) { |
| const search_site *const site = cfg->site[step]; |
| best_site = 0; |
| for (int idx = 1; idx <= cfg->searches_per_step[step]; ++idx) { |
| const FULLPEL_MV mv = { best_mv->row + site[idx].mv.row, |
| best_mv->col + site[idx].mv.col }; |
| if (av1_is_fullmv_in_range(&ms_params->mv_limits, mv)) { |
| int sad = fn_ptr->osdf(best_address + site[idx].offset, ref_buf->stride, |
| wsrc, mask); |
| if (sad < best_sad) { |
| sad += mvsad_err_cost_(&mv, mv_cost_params); |
| |
| if (sad < best_sad) { |
| best_sad = sad; |
| best_site = idx; |
| } |
| } |
| } |
| } |
| |
| if (best_site != 0) { |
| best_mv->row += site[best_site].mv.row; |
| best_mv->col += site[best_site].mv.col; |
| best_address += site[best_site].offset; |
| } else if (best_address == init_ref) { |
| (*num00)++; |
| } |
| } |
| return best_sad; |
| } |
| |
| static int obmc_full_pixel_diamond( |
| const FULLPEL_MOTION_SEARCH_PARAMS *ms_params, const FULLPEL_MV start_mv, |
| int step_param, int do_refine, FULLPEL_MV *best_mv) { |
| const search_site_config *cfg = ms_params->search_sites; |
| FULLPEL_MV tmp_mv; |
| int thissme, n, num00 = 0; |
| int bestsme = |
| obmc_diamond_search_sad(ms_params, start_mv, &tmp_mv, step_param, &n); |
| if (bestsme < INT_MAX) bestsme = get_obmc_mvpred_var(ms_params, &tmp_mv); |
| *best_mv = tmp_mv; |
| |
| // If there won't be more n-step search, check to see if refining search is |
| // needed. |
| const int further_steps = cfg->num_search_steps - 1 - step_param; |
| if (n > further_steps) do_refine = 0; |
| |
| while (n < further_steps) { |
| ++n; |
| |
| if (num00) { |
| num00--; |
| } else { |
| thissme = obmc_diamond_search_sad(ms_params, start_mv, &tmp_mv, |
| step_param + n, &num00); |
| if (thissme < INT_MAX) thissme = get_obmc_mvpred_var(ms_params, &tmp_mv); |
| |
| // check to see if refining search is needed. |
| if (num00 > further_steps - n) do_refine = 0; |
| |
| if (thissme < bestsme) { |
| bestsme = thissme; |
| *best_mv = tmp_mv; |
| } |
| } |
| } |
| |
| // final 1-away diamond refining search |
| if (do_refine) { |
| tmp_mv = *best_mv; |
| thissme = obmc_refining_search_sad(ms_params, &tmp_mv); |
| if (thissme < INT_MAX) thissme = get_obmc_mvpred_var(ms_params, &tmp_mv); |
| if (thissme < bestsme) { |
| bestsme = thissme; |
| *best_mv = tmp_mv; |
| } |
| } |
| return bestsme; |
| } |
| |
| int av1_obmc_full_pixel_search(const FULLPEL_MV start_mv, |
| const FULLPEL_MOTION_SEARCH_PARAMS *ms_params, |
| const int step_param, FULLPEL_MV *best_mv) { |
| if (!ms_params->fast_obmc_search) { |
| const int do_refine = 1; |
| const int bestsme = obmc_full_pixel_diamond(ms_params, start_mv, step_param, |
| do_refine, best_mv); |
| return bestsme; |
| } else { |
| *best_mv = start_mv; |
| clamp_fullmv(best_mv, &ms_params->mv_limits); |
| int thissme = obmc_refining_search_sad(ms_params, best_mv); |
| if (thissme < INT_MAX) thissme = get_obmc_mvpred_var(ms_params, best_mv); |
| return thissme; |
| } |
| } |
| |
| // ============================================================================= |
| // Subpixel Motion Search: Translational |
| // ============================================================================= |
| #define INIT_SUBPEL_STEP_SIZE (4) |
| /* |
| * To avoid the penalty for crossing cache-line read, preload the reference |
| * area in a small buffer, which is aligned to make sure there won't be crossing |
| * cache-line read while reading from this buffer. This reduced the cpu |
| * cycles spent on reading ref data in sub-pixel filter functions. |
| * TODO: Currently, since sub-pixel search range here is -3 ~ 3, copy 22 rows x |
| * 32 cols area that is enough for 16x16 macroblock. Later, for SPLITMV, we |
| * could reduce the area. |
| */ |
| |
| // Returns the subpel offset used by various subpel variance functions [m]sv[a]f |
| static INLINE int get_subpel_part(int x) { return x & 7; } |
| |
| // Gets the address of the ref buffer at subpel location (r, c), rounded to the |
| // nearest fullpel precision toward - \infty |
| |
| static INLINE const uint8_t *get_buf_from_mv(const struct buf_2d *buf, |
| const MV mv) { |
| const int offset = (mv.row >> 3) * buf->stride + (mv.col >> 3); |
| return &buf->buf[offset]; |
| } |
| |
| // Estimates the variance of prediction residue using bilinear filter for fast |
| // search. |
| static INLINE int estimated_pref_error( |
| const MV *this_mv, const SUBPEL_SEARCH_VAR_PARAMS *var_params, |
| unsigned int *sse) { |
| const aom_variance_fn_ptr_t *vfp = var_params->vfp; |
| |
| const MSBuffers *ms_buffers = &var_params->ms_buffers; |
| const uint8_t *src = ms_buffers->src->buf; |
| const uint8_t *ref = get_buf_from_mv(ms_buffers->ref, *this_mv); |
| const int src_stride = ms_buffers->src->stride; |
| const int ref_stride = ms_buffers->ref->stride; |
| const uint8_t *second_pred = ms_buffers->second_pred; |
| const uint8_t *mask = ms_buffers->mask; |
| const int mask_stride = ms_buffers->mask_stride; |
| const int invert_mask = ms_buffers->inv_mask; |
| |
| const int subpel_x_q3 = get_subpel_part(this_mv->col); |
| const int subpel_y_q3 = get_subpel_part(this_mv->row); |
| |
| if (second_pred == NULL) { |
| return vfp->svf(ref, ref_stride, subpel_x_q3, subpel_y_q3, src, src_stride, |
| sse); |
| } else if (mask) { |
| return vfp->msvf(ref, ref_stride, subpel_x_q3, subpel_y_q3, src, src_stride, |
| second_pred, mask, mask_stride, invert_mask, sse); |
| } else { |
| return vfp->svaf(ref, ref_stride, subpel_x_q3, subpel_y_q3, src, src_stride, |
| sse, second_pred); |
| } |
| } |
| |
| // Calculates the variance of prediction residue. |
| static int upsampled_pref_error(MACROBLOCKD *xd, const AV1_COMMON *cm, |
| const MV *this_mv, |
| const SUBPEL_SEARCH_VAR_PARAMS *var_params, |
| unsigned int *sse) { |
| const aom_variance_fn_ptr_t *vfp = var_params->vfp; |
| const SUBPEL_SEARCH_TYPE subpel_search_type = var_params->subpel_search_type; |
| |
| const MSBuffers *ms_buffers = &var_params->ms_buffers; |
| const uint8_t *src = ms_buffers->src->buf; |
| const uint8_t *ref = get_buf_from_mv(ms_buffers->ref, *this_mv); |
| const int src_stride = ms_buffers->src->stride; |
| const int ref_stride = ms_buffers->ref->stride; |
| const uint8_t *second_pred = ms_buffers->second_pred; |
| const uint8_t *mask = ms_buffers->mask; |
| const int mask_stride = ms_buffers->mask_stride; |
| const int invert_mask = ms_buffers->inv_mask; |
| const int w = var_params->w; |
| const int h = var_params->h; |
| |
| const int mi_row = xd->mi_row; |
| const int mi_col = xd->mi_col; |
| const int subpel_x_q3 = get_subpel_part(this_mv->col); |
| const int subpel_y_q3 = get_subpel_part(this_mv->row); |
| |
| unsigned int besterr; |
| |
| if (is_cur_buf_hbd(xd)) { |
| DECLARE_ALIGNED(16, uint16_t, pred16[MAX_SB_SQUARE]); |
| uint8_t *pred8 = CONVERT_TO_BYTEPTR(pred16); |
| if (second_pred != NULL) { |
| if (mask) { |
| aom_highbd_comp_mask_upsampled_pred( |
| xd, cm, mi_row, mi_col, this_mv, pred8, second_pred, w, h, |
| subpel_x_q3, subpel_y_q3, ref, ref_stride, mask, mask_stride, |
| invert_mask, xd->bd, subpel_search_type); |
| } else { |
| aom_highbd_comp_avg_upsampled_pred( |
| xd, cm, mi_row, mi_col, this_mv, pred8, second_pred, w, h, |
| subpel_x_q3, subpel_y_q3, ref, ref_stride, xd->bd, |
| subpel_search_type); |
| } |
| } else { |
| aom_highbd_upsampled_pred(xd, cm, mi_row, mi_col, this_mv, pred8, w, h, |
| subpel_x_q3, subpel_y_q3, ref, ref_stride, |
| xd->bd, subpel_search_type); |
| } |
| besterr = vfp->vf(pred8, w, src, src_stride, sse); |
| } else { |
| DECLARE_ALIGNED(16, uint8_t, pred[MAX_SB_SQUARE]); |
| if (second_pred != NULL) { |
| if (mask) { |
| aom_comp_mask_upsampled_pred( |
| xd, cm, mi_row, mi_col, this_mv, pred, second_pred, w, h, |
| subpel_x_q3, subpel_y_q3, ref, ref_stride, mask, mask_stride, |
| invert_mask, subpel_search_type); |
| } else { |
| aom_comp_avg_upsampled_pred(xd, cm, mi_row, mi_col, this_mv, pred, |
| second_pred, w, h, subpel_x_q3, subpel_y_q3, |
| ref, ref_stride, subpel_search_type); |
| } |
| } else { |
| aom_upsampled_pred(xd, cm, mi_row, mi_col, this_mv, pred, w, h, |
| subpel_x_q3, subpel_y_q3, ref, ref_stride, |
| subpel_search_type); |
| } |
| |
| besterr = vfp->vf(pred, w, src, src_stride, sse); |
| } |
| |
| return besterr; |
| } |
| |
| // Estimates whether this_mv is better than best_mv. This function incorporates |
| // both prediction error and residue into account. It is suffixed "fast" because |
| // it uses bilinear filter to estimate the prediction. |
| static INLINE unsigned int check_better_fast( |
| MACROBLOCKD *xd, const AV1_COMMON *cm, const MV *this_mv, MV *best_mv, |
| const SubpelMvLimits *mv_limits, const SUBPEL_SEARCH_VAR_PARAMS *var_params, |
| const MV_COST_PARAMS *mv_cost_params, unsigned int *besterr, |
| unsigned int *sse1, int *distortion, int *has_better_mv, int is_scaled) { |
| unsigned int cost; |
| if (av1_is_subpelmv_in_range(mv_limits, *this_mv)) { |
| unsigned int sse; |
| int thismse; |
| if (is_scaled) { |
| thismse = upsampled_pref_error(xd, cm, this_mv, var_params, &sse); |
| } else { |
| thismse = estimated_pref_error(this_mv, var_params, &sse); |
| } |
| cost = mv_err_cost_(this_mv, mv_cost_params); |
| cost += thismse; |
| |
| if (cost < *besterr) { |
| *besterr = cost; |
| *best_mv = *this_mv; |
| *distortion = thismse; |
| *sse1 = sse; |
| *has_better_mv |= 1; |
| } |
| } else { |
| cost = INT_MAX; |
| } |
| return cost; |
| } |
| |
| // Checks whether this_mv is better than best_mv. This function incorporates |
| // both prediction error and residue into account. |
| static AOM_FORCE_INLINE unsigned int check_better( |
| MACROBLOCKD *xd, const AV1_COMMON *cm, const MV *this_mv, MV *best_mv, |
| const SubpelMvLimits *mv_limits, const SUBPEL_SEARCH_VAR_PARAMS *var_params, |
| const MV_COST_PARAMS *mv_cost_params, unsigned int *besterr, |
| unsigned int *sse1, int *distortion, int *is_better) { |
| unsigned int cost; |
| if (av1_is_subpelmv_in_range(mv_limits, *this_mv)) { |
| unsigned int sse; |
| int thismse; |
| thismse = upsampled_pref_error(xd, cm, this_mv, var_params, &sse); |
| cost = mv_err_cost_(this_mv, mv_cost_params); |
| cost += thismse; |
| if (cost < *besterr) { |
| *besterr = cost; |
| *best_mv = *this_mv; |
| *distortion = thismse; |
| *sse1 = sse; |
| *is_better |= 1; |
| } |
| } else { |
| cost = INT_MAX; |
| } |
| return cost; |
| } |
| |
| static INLINE MV get_best_diag_step(int step_size, unsigned int left_cost, |
| unsigned int right_cost, |
| unsigned int up_cost, |
| unsigned int down_cost) { |
| const MV diag_step = { up_cost <= down_cost ? -step_size : step_size, |