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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);
// =============================================================================
// 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 firstpass motion search.
void av1_init_motion_fpf(search_site_config *cfg, int stride);
/*! 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 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);
int av1_vector_match(const int16_t *ref, const int16_t *src, int bwl,
int search_size, int full_search, int *sad);
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_