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+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. 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 www.aomedia.org/license/patent.
+ */
+
+#ifndef AOM_AV1_ENCODER_MCOMP_H_
+#define AOM_AV1_ENCODER_MCOMP_H_
+
+#include "av1/common/mv.h"
+#include "av1/encoder/block.h"
+#include "av1/encoder/rd.h"
+
+#include "aom_dsp/variance.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct AV1_COMP;
+struct SPEED_FEATURES;
+
+// =============================================================================
+// Cost functions
+// =============================================================================
+
+enum {
+ MV_COST_ENTROPY, // Use the entropy rate of the mv as the cost
+ MV_COST_L1_LOWRES, // Use the l1 norm of the mv as the cost (<480p)
+ MV_COST_L1_MIDRES, // Use the l1 norm of the mv as the cost (>=480p)
+ MV_COST_L1_HDRES, // Use the l1 norm of the mv as the cost (>=720p)
+ MV_COST_NONE // Use 0 as as cost irrespective of the current mv
+} UENUM1BYTE(MV_COST_TYPE);
+
+typedef struct {
+ // The reference mv used to compute the mv cost
+ const MV *ref_mv;
+ FULLPEL_MV full_ref_mv;
+ MV_COST_TYPE mv_cost_type;
+ const int *mvjcost;
+ const int *mvcost[2];
+ int error_per_bit;
+ // A multiplier used to convert rate to sad cost
+ int sad_per_bit;
+} MV_COST_PARAMS;
+
+int av1_mv_bit_cost(const MV *mv, const MV *ref_mv, const int *mvjcost,
+ int *const mvcost[2], int weight);
+
+int av1_get_mvpred_sse(const MV_COST_PARAMS *mv_cost_params,
+ const FULLPEL_MV best_mv,
+ const aom_variance_fn_ptr_t *vfp,
+ const struct buf_2d *src, const struct buf_2d *pre);
+int av1_get_mvpred_compound_var(const MV_COST_PARAMS *ms_params,
+ const FULLPEL_MV best_mv,
+ const uint8_t *second_pred, const uint8_t *mask,
+ int mask_stride, int invert_mask,
+ const aom_variance_fn_ptr_t *vfp,
+ const struct buf_2d *src,
+ const struct buf_2d *pre);
+
+// =============================================================================
+// Motion Search
+// =============================================================================
+typedef struct {
+ // The reference buffer
+ const struct buf_2d *ref;
+
+ // The source and predictors/mask used by translational search
+ const struct buf_2d *src;
+ const uint8_t *second_pred;
+ const uint8_t *mask;
+ int mask_stride;
+ int inv_mask;
+
+ // The weighted source and mask used by OBMC
+ const int32_t *wsrc;
+ const int32_t *obmc_mask;
+} MSBuffers;
+
+static INLINE void av1_set_ms_compound_refs(MSBuffers *ms_buffers,
+ const uint8_t *second_pred,
+ const uint8_t *mask,
+ int mask_stride, int invert_mask) {
+ ms_buffers->second_pred = second_pred;
+ ms_buffers->mask = mask;
+ ms_buffers->mask_stride = mask_stride;
+ ms_buffers->inv_mask = invert_mask;
+}
+
+// =============================================================================
+// Fullpixel Motion Search
+// =============================================================================
+// This struct holds fullpixel motion search parameters that should be constant
+// during the search
+typedef struct {
+ BLOCK_SIZE bsize;
+ // A function pointer to the simd function for fast computation
+ const aom_variance_fn_ptr_t *vfp;
+
+ MSBuffers ms_buffers;
+
+ // WARNING: search_method should be regarded as a private variable and should
+ // not be modified directly so it is in sync with search_sites. To modify it,
+ // use av1_set_mv_search_method.
+ SEARCH_METHODS search_method;
+ const search_site_config *search_sites;
+ FullMvLimits mv_limits;
+
+ int run_mesh_search; // Sets mesh search unless it got pruned by
+ // prune_mesh_search.
+ int prune_mesh_search; // Disables mesh search if the best_mv after a normal
+ // search if close to the start_mv.
+ int mesh_search_mv_diff_threshold; // mv diff threshold to enable
+ // prune_mesh_search
+ int force_mesh_thresh; // Forces mesh search if the residue variance is
+ // higher than the threshold.
+ const struct MESH_PATTERN *mesh_patterns[2];
+
+ // Use maximum search interval of 4 if true. This helps motion search to find
+ // the best motion vector for screen content types.
+ int fine_search_interval;
+
+ int is_intra_mode;
+
+ int fast_obmc_search;
+
+ // For calculating mv cost
+ MV_COST_PARAMS mv_cost_params;
+
+ // Stores the function used to compute the sad. This can be different from the
+ // sdf in vfp (e.g. downsampled sad and not sad) to allow speed up.
+ aom_sad_fn_t sdf;
+ aom_sad_multi_d_fn_t sdx4df;
+ aom_sad_multi_d_fn_t sdx3df;
+} FULLPEL_MOTION_SEARCH_PARAMS;
+
+typedef struct {
+ int err_cost;
+ unsigned int distortion;
+ unsigned int sse;
+} FULLPEL_MV_STATS;
+
+void av1_init_obmc_buffer(OBMCBuffer *obmc_buffer);
+
+void av1_make_default_fullpel_ms_params(
+ FULLPEL_MOTION_SEARCH_PARAMS *ms_params, const struct AV1_COMP *cpi,
+ MACROBLOCK *x, BLOCK_SIZE bsize, const MV *ref_mv, FULLPEL_MV start_mv,
+ const search_site_config search_sites[NUM_DISTINCT_SEARCH_METHODS],
+ SEARCH_METHODS search_method, int fine_search_interval);
+
+/*! Sets the \ref FULLPEL_MOTION_SEARCH_PARAMS to intra mode. */
+void av1_set_ms_to_intra_mode(FULLPEL_MOTION_SEARCH_PARAMS *ms_params,
+ const IntraBCMVCosts *dv_costs);
+
+// Sets up configs for fullpixel DIAMOND / CLAMPED_DIAMOND search method.
+void av1_init_dsmotion_compensation(search_site_config *cfg, int stride,
+ int level);
+// Sets up configs for firstpass motion search.
+void av1_init_motion_fpf(search_site_config *cfg, int stride);
+// Sets up configs for NSTEP / NSTEP_8PT motion search method.
+void av1_init_motion_compensation_nstep(search_site_config *cfg, int stride,
+ int level);
+// Sets up configs for BIGDIA / FAST_DIAMOND / FAST_BIGDIA
+// motion search method.
+void av1_init_motion_compensation_bigdia(search_site_config *cfg, int stride,
+ int level);
+// Sets up configs for HEX or FAST_HEX motion search method.
+void av1_init_motion_compensation_hex(search_site_config *cfg, int stride,
+ int level);
+// Sets up configs for SQUARE motion search method.
+void av1_init_motion_compensation_square(search_site_config *cfg, int stride,
+ int level);
+
+/*! Function pointer to search site config initialization of different search
+ * method functions. */
+typedef void (*av1_init_search_site_config)(search_site_config *cfg, int stride,
+ int level);
+
+/*! Array of function pointers used to set the motion search config. */
+extern const av1_init_search_site_config
+ av1_init_motion_compensation[NUM_DISTINCT_SEARCH_METHODS];
+
+// Array to inform which all search methods are having
+// same candidates and different in number of search steps.
+static const SEARCH_METHODS search_method_lookup[NUM_SEARCH_METHODS] = {
+ DIAMOND, // DIAMOND
+ NSTEP, // NSTEP
+ NSTEP_8PT, // NSTEP_8PT
+ CLAMPED_DIAMOND, // CLAMPED_DIAMOND
+ HEX, // HEX
+ BIGDIA, // BIGDIA
+ SQUARE, // SQUARE
+ HEX, // FAST_HEX
+ BIGDIA, // FAST_DIAMOND
+ BIGDIA, // FAST_BIGDIA
+ BIGDIA // VFAST_DIAMOND
+};
+
+// Reinitialize the search site config.
+static AOM_INLINE void av1_refresh_search_site_config(
+ search_site_config *ss_cfg_buf, SEARCH_METHODS search_method,
+ const int ref_stride) {
+ const int level =
+ search_method == NSTEP_8PT || search_method == CLAMPED_DIAMOND;
+ search_method = search_method_lookup[search_method];
+ av1_init_motion_compensation[search_method](&ss_cfg_buf[search_method],
+ ref_stride, level);
+}
+
+// Mv beyond the range do not produce new/different prediction block.
+static INLINE void av1_set_mv_search_method(
+ FULLPEL_MOTION_SEARCH_PARAMS *ms_params,
+ const search_site_config search_sites[NUM_DISTINCT_SEARCH_METHODS],
+ SEARCH_METHODS search_method) {
+ ms_params->search_method = search_method;
+ ms_params->search_sites =
+ &search_sites[search_method_lookup[ms_params->search_method]];
+}
+
+// Set up limit values for MV components.
+// Mv beyond the range do not produce new/different prediction block.
+static INLINE void av1_set_mv_row_limits(
+ const CommonModeInfoParams *const mi_params, FullMvLimits *mv_limits,
+ int mi_row, int mi_height, int border) {
+ const int min1 = -(mi_row * MI_SIZE + border - 2 * AOM_INTERP_EXTEND);
+ const int min2 = -(((mi_row + mi_height) * MI_SIZE) + 2 * AOM_INTERP_EXTEND);
+ mv_limits->row_min = AOMMAX(min1, min2);
+ const int max1 = (mi_params->mi_rows - mi_row - mi_height) * MI_SIZE +
+ border - 2 * AOM_INTERP_EXTEND;
+ const int max2 =
+ (mi_params->mi_rows - mi_row) * MI_SIZE + 2 * AOM_INTERP_EXTEND;
+ mv_limits->row_max = AOMMIN(max1, max2);
+}
+
+static INLINE void av1_set_mv_col_limits(
+ const CommonModeInfoParams *const mi_params, FullMvLimits *mv_limits,
+ int mi_col, int mi_width, int border) {
+ const int min1 = -(mi_col * MI_SIZE + border - 2 * AOM_INTERP_EXTEND);
+ const int min2 = -(((mi_col + mi_width) * MI_SIZE) + 2 * AOM_INTERP_EXTEND);
+ mv_limits->col_min = AOMMAX(min1, min2);
+ const int max1 = (mi_params->mi_cols - mi_col - mi_width) * MI_SIZE + border -
+ 2 * AOM_INTERP_EXTEND;
+ const int max2 =
+ (mi_params->mi_cols - mi_col) * MI_SIZE + 2 * AOM_INTERP_EXTEND;
+ mv_limits->col_max = AOMMIN(max1, max2);
+}
+
+static INLINE void av1_set_mv_limits(
+ const CommonModeInfoParams *const mi_params, FullMvLimits *mv_limits,
+ int mi_row, int mi_col, int mi_height, int mi_width, int border) {
+ av1_set_mv_row_limits(mi_params, mv_limits, mi_row, mi_height, border);
+ av1_set_mv_col_limits(mi_params, mv_limits, mi_col, mi_width, border);
+}
+
+void av1_set_mv_search_range(FullMvLimits *mv_limits, const MV *mv);
+
+int av1_init_search_range(int size);
+
+unsigned int av1_int_pro_motion_estimation(
+ const struct AV1_COMP *cpi, MACROBLOCK *x, BLOCK_SIZE bsize, int mi_row,
+ int mi_col, const MV *ref_mv, unsigned int *y_sad_zero,
+ int me_search_size_col, int me_search_size_row);
+
+int av1_refining_search_8p_c(const FULLPEL_MOTION_SEARCH_PARAMS *ms_params,
+ const FULLPEL_MV start_mv, FULLPEL_MV *best_mv);
+
+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_STATS *best_mv_stats,
+ FULLPEL_MV *second_best_mv);
+
+int av1_intrabc_hash_search(const struct AV1_COMP *cpi, const MACROBLOCKD *xd,
+ const FULLPEL_MOTION_SEARCH_PARAMS *ms_params,
+ IntraBCHashInfo *intrabc_hash_info,
+ FULLPEL_MV *best_mv);
+
+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);
+
+static INLINE int av1_is_fullmv_in_range(const FullMvLimits *mv_limits,
+ FULLPEL_MV mv) {
+ return (mv.col >= mv_limits->col_min) && (mv.col <= mv_limits->col_max) &&
+ (mv.row >= mv_limits->row_min) && (mv.row <= mv_limits->row_max);
+}
+// =============================================================================
+// Subpixel Motion Search
+// =============================================================================
+enum {
+ EIGHTH_PEL,
+ QUARTER_PEL,
+ HALF_PEL,
+ FULL_PEL
+} UENUM1BYTE(SUBPEL_FORCE_STOP);
+
+typedef struct {
+ const aom_variance_fn_ptr_t *vfp;
+ SUBPEL_SEARCH_TYPE subpel_search_type;
+ // Source and reference buffers
+ MSBuffers ms_buffers;
+ int w, h;
+} SUBPEL_SEARCH_VAR_PARAMS;
+
+// This struct holds subpixel motion search parameters that should be constant
+// during the search
+typedef struct {
+ // High level motion search settings
+ int allow_hp;
+ const int *cost_list;
+ SUBPEL_FORCE_STOP forced_stop;
+ int iters_per_step;
+ SubpelMvLimits mv_limits;
+
+ // For calculating mv cost
+ MV_COST_PARAMS mv_cost_params;
+
+ // Distortion calculation params
+ SUBPEL_SEARCH_VAR_PARAMS var_params;
+} SUBPEL_MOTION_SEARCH_PARAMS;
+
+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);
+
+typedef int(fractional_mv_step_fp)(MACROBLOCKD *xd, const AV1_COMMON *const cm,
+ const SUBPEL_MOTION_SEARCH_PARAMS *ms_params,
+ MV start_mv,
+ const FULLPEL_MV_STATS *start_mv_stats,
+ MV *bestmv, int *distortion,
+ unsigned int *sse1,
+ int_mv *last_mv_search_list);
+
+extern fractional_mv_step_fp av1_find_best_sub_pixel_tree;
+extern fractional_mv_step_fp av1_find_best_sub_pixel_tree_pruned;
+extern fractional_mv_step_fp av1_find_best_sub_pixel_tree_pruned_more;
+extern fractional_mv_step_fp av1_return_max_sub_pixel_mv;
+extern fractional_mv_step_fp av1_return_min_sub_pixel_mv;
+extern fractional_mv_step_fp av1_find_best_obmc_sub_pixel_tree_up;
+
+unsigned int av1_refine_warped_mv(MACROBLOCKD *xd, const AV1_COMMON *const cm,
+ const SUBPEL_MOTION_SEARCH_PARAMS *ms_params,
+ BLOCK_SIZE bsize, const int *pts0,
+ const int *pts_inref0, int total_samples,
+ WARP_SEARCH_METHOD search_method,
+ int num_iterations);
+
+static INLINE void av1_set_fractional_mv(int_mv *fractional_best_mv) {
+ for (int z = 0; z < 3; z++) {
+ fractional_best_mv[z].as_int = INVALID_MV;
+ }
+}
+
+static INLINE void av1_set_subpel_mv_search_range(SubpelMvLimits *subpel_limits,
+ const FullMvLimits *mv_limits,
+ const MV *ref_mv) {
+ const int max_mv = GET_MV_SUBPEL(MAX_FULL_PEL_VAL);
+ int minc = AOMMAX(GET_MV_SUBPEL(mv_limits->col_min), ref_mv->col - max_mv);
+ int maxc = AOMMIN(GET_MV_SUBPEL(mv_limits->col_max), ref_mv->col + max_mv);
+ int minr = AOMMAX(GET_MV_SUBPEL(mv_limits->row_min), ref_mv->row - max_mv);
+ int maxr = AOMMIN(GET_MV_SUBPEL(mv_limits->row_max), ref_mv->row + max_mv);
+
+ maxc = AOMMAX(minc, maxc);
+ maxr = AOMMAX(minr, maxr);
+
+ subpel_limits->col_min = AOMMAX(MV_LOW + 1, minc);
+ subpel_limits->col_max = AOMMIN(MV_UPP - 1, maxc);
+ subpel_limits->row_min = AOMMAX(MV_LOW + 1, minr);
+ subpel_limits->row_max = AOMMIN(MV_UPP - 1, maxr);
+}
+
+static INLINE int av1_is_subpelmv_in_range(const SubpelMvLimits *mv_limits,
+ MV mv) {
+ return (mv.col >= mv_limits->col_min) && (mv.col <= mv_limits->col_max) &&
+ (mv.row >= mv_limits->row_min) && (mv.row <= mv_limits->row_max);
+}
+
+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)];
+}
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // AOM_AV1_ENCODER_MCOMP_H_
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