1 /*
2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved.
3 *
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
9 */
10
11 #ifndef VPX_VP9_ENCODER_VP9_RD_H_
12 #define VPX_VP9_ENCODER_VP9_RD_H_
13
14 #include <limits.h>
15
16 #include "vp9/common/vp9_blockd.h"
17
18 #include "vp9/encoder/vp9_block.h"
19 #include "vp9/encoder/vp9_context_tree.h"
20 #include "vp9/encoder/vp9_cost.h"
21
22 #ifdef __cplusplus
23 extern "C" {
24 #endif
25
26 #define RDDIV_BITS 7
27 #define RD_EPB_SHIFT 6
28
29 #define RDCOST(RM, DM, R, D) \
30 ROUND_POWER_OF_TWO(((int64_t)(R)) * (RM), VP9_PROB_COST_SHIFT) + ((D) << (DM))
31 #define RDCOST_NEG_R(RM, DM, R, D) \
32 ((D) << (DM)) - ROUND_POWER_OF_TWO(((int64_t)(R)) * (RM), VP9_PROB_COST_SHIFT)
33 #define RDCOST_NEG_D(RM, DM, R, D) \
34 ROUND_POWER_OF_TWO(((int64_t)(R)) * (RM), VP9_PROB_COST_SHIFT) - ((D) << (DM))
35
36 #define QIDX_SKIP_THRESH 115
37
38 #define MV_COST_WEIGHT 108
39 #define MV_COST_WEIGHT_SUB 120
40
41 #define MAX_MODES 30
42 #define MAX_REFS 6
43
44 #define RD_THRESH_INIT_FACT 32
45 #define RD_THRESH_MAX_FACT 64
46 #define RD_THRESH_INC 1
47
48 #define VP9_DIST_SCALE_LOG2 4
49 #define VP9_DIST_SCALE (1 << VP9_DIST_SCALE_LOG2)
50
51 // This enumerator type needs to be kept aligned with the mode order in
52 // const MODE_DEFINITION vp9_mode_order[MAX_MODES] used in the rd code.
53 typedef enum {
54 THR_NEARESTMV,
55 THR_NEARESTA,
56 THR_NEARESTG,
57
58 THR_DC,
59
60 THR_NEWMV,
61 THR_NEWA,
62 THR_NEWG,
63
64 THR_NEARMV,
65 THR_NEARA,
66 THR_NEARG,
67
68 THR_ZEROMV,
69 THR_ZEROG,
70 THR_ZEROA,
71
72 THR_COMP_NEARESTLA,
73 THR_COMP_NEARESTGA,
74
75 THR_TM,
76
77 THR_COMP_NEARLA,
78 THR_COMP_NEWLA,
79 THR_COMP_NEARGA,
80 THR_COMP_NEWGA,
81
82 THR_COMP_ZEROLA,
83 THR_COMP_ZEROGA,
84
85 THR_H_PRED,
86 THR_V_PRED,
87 THR_D135_PRED,
88 THR_D207_PRED,
89 THR_D153_PRED,
90 THR_D63_PRED,
91 THR_D117_PRED,
92 THR_D45_PRED,
93 } THR_MODES;
94
95 typedef enum {
96 THR_LAST,
97 THR_GOLD,
98 THR_ALTR,
99 THR_COMP_LA,
100 THR_COMP_GA,
101 THR_INTRA,
102 } THR_MODES_SUB8X8;
103
104 typedef struct RD_OPT {
105 // Thresh_mult is used to set a threshold for the rd score. A higher value
106 // means that we will accept the best mode so far more often. This number
107 // is used in combination with the current block size, and thresh_freq_fact to
108 // pick a threshold.
109 int thresh_mult[MAX_MODES];
110 int thresh_mult_sub8x8[MAX_REFS];
111
112 int threshes[MAX_SEGMENTS][BLOCK_SIZES][MAX_MODES];
113
114 int64_t prediction_type_threshes[MAX_REF_FRAMES][REFERENCE_MODES];
115
116 int64_t filter_threshes[MAX_REF_FRAMES][SWITCHABLE_FILTER_CONTEXTS];
117 #if CONFIG_CONSISTENT_RECODE
118 int64_t prediction_type_threshes_prev[MAX_REF_FRAMES][REFERENCE_MODES];
119
120 int64_t filter_threshes_prev[MAX_REF_FRAMES][SWITCHABLE_FILTER_CONTEXTS];
121 #endif
122 int RDMULT;
123 int RDDIV;
124 double r0;
125 } RD_OPT;
126
127 typedef struct RD_COST {
128 int rate;
129 int64_t dist;
130 int64_t rdcost;
131 } RD_COST;
132
133 // Reset the rate distortion cost values to maximum (invalid) value.
134 void vp9_rd_cost_reset(RD_COST *rd_cost);
135 // Initialize the rate distortion cost values to zero.
136 void vp9_rd_cost_init(RD_COST *rd_cost);
137 // It supports negative rate and dist, which is different from RDCOST().
138 int64_t vp9_calculate_rd_cost(int mult, int div, int rate, int64_t dist);
139 // Update the cost value based on its rate and distortion.
140 void vp9_rd_cost_update(int mult, int div, RD_COST *rd_cost);
141
142 struct TileInfo;
143 struct TileDataEnc;
144 struct VP9_COMP;
145 struct macroblock;
146
147 int vp9_compute_rd_mult_based_on_qindex(const struct VP9_COMP *cpi, int qindex);
148
149 int vp9_compute_rd_mult(const struct VP9_COMP *cpi, int qindex);
150
151 int vp9_get_adaptive_rdmult(const struct VP9_COMP *cpi, double beta);
152
153 void vp9_initialize_rd_consts(struct VP9_COMP *cpi);
154
155 void vp9_initialize_me_consts(struct VP9_COMP *cpi, MACROBLOCK *x, int qindex);
156
157 void vp9_model_rd_from_var_lapndz(unsigned int var, unsigned int n_log2,
158 unsigned int qstep, int *rate, int64_t *dist);
159
160 void vp9_model_rd_from_var_lapndz_vec(unsigned int var[MAX_MB_PLANE],
161 unsigned int n_log2[MAX_MB_PLANE],
162 unsigned int qstep[MAX_MB_PLANE],
163 int64_t *rate_sum, int64_t *dist_sum);
164
165 int vp9_get_switchable_rate(const struct VP9_COMP *cpi,
166 const MACROBLOCKD *const xd);
167
168 int vp9_raster_block_offset(BLOCK_SIZE plane_bsize, int raster_block,
169 int stride);
170
171 int16_t *vp9_raster_block_offset_int16(BLOCK_SIZE plane_bsize, int raster_block,
172 int16_t *base);
173
174 YV12_BUFFER_CONFIG *vp9_get_scaled_ref_frame(const struct VP9_COMP *cpi,
175 int ref_frame);
176
177 void vp9_init_me_luts(void);
178
179 void vp9_get_entropy_contexts(BLOCK_SIZE bsize, TX_SIZE tx_size,
180 const struct macroblockd_plane *pd,
181 ENTROPY_CONTEXT t_above[16],
182 ENTROPY_CONTEXT t_left[16]);
183
184 void vp9_set_rd_speed_thresholds(struct VP9_COMP *cpi);
185
186 void vp9_set_rd_speed_thresholds_sub8x8(struct VP9_COMP *cpi);
187
188 void vp9_update_rd_thresh_fact(int (*factor_buf)[MAX_MODES], int rd_thresh,
189 int bsize, int best_mode_index);
190
rd_less_than_thresh(int64_t best_rd,int thresh,const int * const thresh_fact)191 static INLINE int rd_less_than_thresh(int64_t best_rd, int thresh,
192 const int *const thresh_fact) {
193 return best_rd < ((int64_t)thresh * (*thresh_fact) >> 5) || thresh == INT_MAX;
194 }
195
set_error_per_bit(MACROBLOCK * x,int rdmult)196 static INLINE void set_error_per_bit(MACROBLOCK *x, int rdmult) {
197 x->errorperbit = rdmult >> RD_EPB_SHIFT;
198 x->errorperbit += (x->errorperbit == 0);
199 }
200
201 void vp9_mv_pred(struct VP9_COMP *cpi, MACROBLOCK *x, uint8_t *ref_y_buffer,
202 int ref_y_stride, int ref_frame, BLOCK_SIZE block_size);
203
204 void vp9_setup_pred_block(const MACROBLOCKD *xd,
205 struct buf_2d dst[MAX_MB_PLANE],
206 const YV12_BUFFER_CONFIG *src, int mi_row, int mi_col,
207 const struct scale_factors *scale,
208 const struct scale_factors *scale_uv);
209
210 int vp9_get_intra_cost_penalty(const struct VP9_COMP *const cpi,
211 BLOCK_SIZE bsize, int qindex, int qdelta);
212
213 unsigned int vp9_get_sby_variance(struct VP9_COMP *cpi,
214 const struct buf_2d *ref, BLOCK_SIZE bs);
215 unsigned int vp9_get_sby_perpixel_variance(struct VP9_COMP *cpi,
216 const struct buf_2d *ref,
217 BLOCK_SIZE bs);
218 #if CONFIG_VP9_HIGHBITDEPTH
219 unsigned int vp9_high_get_sby_variance(struct VP9_COMP *cpi,
220 const struct buf_2d *ref, BLOCK_SIZE bs,
221 int bd);
222 unsigned int vp9_high_get_sby_perpixel_variance(struct VP9_COMP *cpi,
223 const struct buf_2d *ref,
224 BLOCK_SIZE bs, int bd);
225 #endif
226
227 void vp9_build_inter_mode_cost(struct VP9_COMP *cpi);
228
229 #ifdef __cplusplus
230 } // extern "C"
231 #endif
232
233 #endif // VPX_VP9_ENCODER_VP9_RD_H_
234