ref: 67aa6c8c23bc6ca90cfde756015f0aae61fe20f7
dir: /vp9/encoder/vp9_rd.h/
/*
* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef VPX_VP9_ENCODER_VP9_RD_H_
#define VPX_VP9_ENCODER_VP9_RD_H_
#include <limits.h>
#include "vp9/common/vp9_blockd.h"
#include "vp9/encoder/vp9_block.h"
#include "vp9/encoder/vp9_context_tree.h"
#include "vp9/encoder/vp9_cost.h"
#ifdef __cplusplus
extern "C" {
#endif
#define RDDIV_BITS 7
#define RD_EPB_SHIFT 6
#define RDCOST(RM, DM, R, D) \
ROUND_POWER_OF_TWO(((int64_t)(R)) * (RM), VP9_PROB_COST_SHIFT) + ((D) << (DM))
#define RDCOST_NEG_R(RM, DM, R, D) \
((D) << (DM)) - ROUND_POWER_OF_TWO(((int64_t)(R)) * (RM), VP9_PROB_COST_SHIFT)
#define RDCOST_NEG_D(RM, DM, R, D) \
ROUND_POWER_OF_TWO(((int64_t)(R)) * (RM), VP9_PROB_COST_SHIFT) - ((D) << (DM))
#define QIDX_SKIP_THRESH 115
#define MV_COST_WEIGHT 108
#define MV_COST_WEIGHT_SUB 120
#define MAX_MODES 30
#define MAX_REFS 6
#define RD_THRESH_INIT_FACT 32
#define RD_THRESH_MAX_FACT 64
#define RD_THRESH_INC 1
#define VP9_DIST_SCALE_LOG2 4
#define VP9_DIST_SCALE (1 << VP9_DIST_SCALE_LOG2)
// This enumerator type needs to be kept aligned with the mode order in
// const MODE_DEFINITION vp9_mode_order[MAX_MODES] used in the rd code.
typedef enum {
THR_NEARESTMV,
THR_NEARESTA,
THR_NEARESTG,
THR_DC,
THR_NEWMV,
THR_NEWA,
THR_NEWG,
THR_NEARMV,
THR_NEARA,
THR_NEARG,
THR_ZEROMV,
THR_ZEROG,
THR_ZEROA,
THR_COMP_NEARESTLA,
THR_COMP_NEARESTGA,
THR_TM,
THR_COMP_NEARLA,
THR_COMP_NEWLA,
THR_COMP_NEARGA,
THR_COMP_NEWGA,
THR_COMP_ZEROLA,
THR_COMP_ZEROGA,
THR_H_PRED,
THR_V_PRED,
THR_D135_PRED,
THR_D207_PRED,
THR_D153_PRED,
THR_D63_PRED,
THR_D117_PRED,
THR_D45_PRED,
} THR_MODES;
typedef enum {
THR_LAST,
THR_GOLD,
THR_ALTR,
THR_COMP_LA,
THR_COMP_GA,
THR_INTRA,
} THR_MODES_SUB8X8;
typedef struct RD_OPT {
// Thresh_mult is used to set a threshold for the rd score. A higher value
// means that we will accept the best mode so far more often. This number
// is used in combination with the current block size, and thresh_freq_fact to
// pick a threshold.
int thresh_mult[MAX_MODES];
int thresh_mult_sub8x8[MAX_REFS];
int threshes[MAX_SEGMENTS][BLOCK_SIZES][MAX_MODES];
int64_t prediction_type_threshes[MAX_REF_FRAMES][REFERENCE_MODES];
int64_t filter_threshes[MAX_REF_FRAMES][SWITCHABLE_FILTER_CONTEXTS];
#if CONFIG_CONSISTENT_RECODE
int64_t prediction_type_threshes_prev[MAX_REF_FRAMES][REFERENCE_MODES];
int64_t filter_threshes_prev[MAX_REF_FRAMES][SWITCHABLE_FILTER_CONTEXTS];
#endif
int RDMULT;
int RDDIV;
double r0;
} RD_OPT;
typedef struct RD_COST {
int rate;
int64_t dist;
int64_t rdcost;
} RD_COST;
// Reset the rate distortion cost values to maximum (invalid) value.
void vp9_rd_cost_reset(RD_COST *rd_cost);
// Initialize the rate distortion cost values to zero.
void vp9_rd_cost_init(RD_COST *rd_cost);
// It supports negative rate and dist, which is different from RDCOST().
int64_t vp9_calculate_rd_cost(int mult, int div, int rate, int64_t dist);
// Update the cost value based on its rate and distortion.
void vp9_rd_cost_update(int mult, int div, RD_COST *rd_cost);
struct TileInfo;
struct TileDataEnc;
struct VP9_COMP;
struct macroblock;
int vp9_compute_rd_mult_based_on_qindex(const struct VP9_COMP *cpi, int qindex);
int vp9_compute_rd_mult(const struct VP9_COMP *cpi, int qindex);
int vp9_get_adaptive_rdmult(const struct VP9_COMP *cpi, double beta);
void vp9_initialize_rd_consts(struct VP9_COMP *cpi);
void vp9_initialize_me_consts(struct VP9_COMP *cpi, MACROBLOCK *x, int qindex);
void vp9_model_rd_from_var_lapndz(unsigned int var, unsigned int n_log2,
unsigned int qstep, int *rate, int64_t *dist);
void vp9_model_rd_from_var_lapndz_vec(unsigned int var[MAX_MB_PLANE],
unsigned int n_log2[MAX_MB_PLANE],
unsigned int qstep[MAX_MB_PLANE],
int64_t *rate_sum, int64_t *dist_sum);
int vp9_get_switchable_rate(const struct VP9_COMP *cpi,
const MACROBLOCKD *const xd);
int vp9_raster_block_offset(BLOCK_SIZE plane_bsize, int raster_block,
int stride);
int16_t *vp9_raster_block_offset_int16(BLOCK_SIZE plane_bsize, int raster_block,
int16_t *base);
YV12_BUFFER_CONFIG *vp9_get_scaled_ref_frame(const struct VP9_COMP *cpi,
int ref_frame);
void vp9_init_me_luts(void);
void vp9_get_entropy_contexts(BLOCK_SIZE bsize, TX_SIZE tx_size,
const struct macroblockd_plane *pd,
ENTROPY_CONTEXT t_above[16],
ENTROPY_CONTEXT t_left[16]);
void vp9_set_rd_speed_thresholds(struct VP9_COMP *cpi);
void vp9_set_rd_speed_thresholds_sub8x8(struct VP9_COMP *cpi);
void vp9_update_rd_thresh_fact(int (*factor_buf)[MAX_MODES], int rd_thresh,
int bsize, int best_mode_index);
static INLINE int rd_less_than_thresh(int64_t best_rd, int thresh,
const int *const thresh_fact) {
return best_rd < ((int64_t)thresh * (*thresh_fact) >> 5) || thresh == INT_MAX;
}
static INLINE void set_error_per_bit(MACROBLOCK *x, int rdmult) {
x->errorperbit = rdmult >> RD_EPB_SHIFT;
x->errorperbit += (x->errorperbit == 0);
}
void vp9_mv_pred(struct VP9_COMP *cpi, MACROBLOCK *x, uint8_t *ref_y_buffer,
int ref_y_stride, int ref_frame, BLOCK_SIZE block_size);
void vp9_setup_pred_block(const MACROBLOCKD *xd,
struct buf_2d dst[MAX_MB_PLANE],
const YV12_BUFFER_CONFIG *src, int mi_row, int mi_col,
const struct scale_factors *scale,
const struct scale_factors *scale_uv);
int vp9_get_intra_cost_penalty(const struct VP9_COMP *const cpi,
BLOCK_SIZE bsize, int qindex, int qdelta);
unsigned int vp9_get_sby_variance(struct VP9_COMP *cpi,
const struct buf_2d *ref, BLOCK_SIZE bs);
unsigned int vp9_get_sby_perpixel_variance(struct VP9_COMP *cpi,
const struct buf_2d *ref,
BLOCK_SIZE bs);
#if CONFIG_VP9_HIGHBITDEPTH
unsigned int vp9_high_get_sby_variance(struct VP9_COMP *cpi,
const struct buf_2d *ref, BLOCK_SIZE bs,
int bd);
unsigned int vp9_high_get_sby_perpixel_variance(struct VP9_COMP *cpi,
const struct buf_2d *ref,
BLOCK_SIZE bs, int bd);
#endif
void vp9_build_inter_mode_cost(struct VP9_COMP *cpi);
#ifdef __cplusplus
} // extern "C"
#endif
#endif // VPX_VP9_ENCODER_VP9_RD_H_