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 VP9_ENCODER_VP9_RD_H_
12 #define 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
21 #ifdef __cplusplus
22 extern "C" {
23 #endif
24
25 #define RDDIV_BITS 7
26
27 #define RDCOST(RM, DM, R, D) \
28 (((128 + ((int64_t)R) * (RM)) >> 8) + (D << DM))
29 #define QIDX_SKIP_THRESH 115
30
31 #define MV_COST_WEIGHT 108
32 #define MV_COST_WEIGHT_SUB 120
33
34 #define INVALID_MV 0x80008000
35
36 #define MAX_MODES 30
37 #define MAX_REFS 6
38
39 // This enumerator type needs to be kept aligned with the mode order in
40 // const MODE_DEFINITION vp9_mode_order[MAX_MODES] used in the rd code.
41 typedef enum {
42 THR_NEARESTMV,
43 THR_NEARESTA,
44 THR_NEARESTG,
45
46 THR_DC,
47
48 THR_NEWMV,
49 THR_NEWA,
50 THR_NEWG,
51
52 THR_NEARMV,
53 THR_NEARA,
54 THR_COMP_NEARESTLA,
55 THR_COMP_NEARESTGA,
56
57 THR_TM,
58
59 THR_COMP_NEARLA,
60 THR_COMP_NEWLA,
61 THR_NEARG,
62 THR_COMP_NEARGA,
63 THR_COMP_NEWGA,
64
65 THR_ZEROMV,
66 THR_ZEROG,
67 THR_ZEROA,
68 THR_COMP_ZEROLA,
69 THR_COMP_ZEROGA,
70
71 THR_H_PRED,
72 THR_V_PRED,
73 THR_D135_PRED,
74 THR_D207_PRED,
75 THR_D153_PRED,
76 THR_D63_PRED,
77 THR_D117_PRED,
78 THR_D45_PRED,
79 } THR_MODES;
80
81 typedef enum {
82 THR_LAST,
83 THR_GOLD,
84 THR_ALTR,
85 THR_COMP_LA,
86 THR_COMP_GA,
87 THR_INTRA,
88 } THR_MODES_SUB8X8;
89
90 typedef struct RD_OPT {
91 // Thresh_mult is used to set a threshold for the rd score. A higher value
92 // means that we will accept the best mode so far more often. This number
93 // is used in combination with the current block size, and thresh_freq_fact
94 // to pick a threshold.
95 int thresh_mult[MAX_MODES];
96 int thresh_mult_sub8x8[MAX_REFS];
97
98 int threshes[MAX_SEGMENTS][BLOCK_SIZES][MAX_MODES];
99 int thresh_freq_fact[BLOCK_SIZES][MAX_MODES];
100
101 int64_t comp_pred_diff[REFERENCE_MODES];
102 int64_t prediction_type_threshes[MAX_REF_FRAMES][REFERENCE_MODES];
103 int64_t tx_select_diff[TX_MODES];
104 // TODO(agrange): can this overflow?
105 int tx_select_threshes[MAX_REF_FRAMES][TX_MODES];
106
107 int64_t filter_diff[SWITCHABLE_FILTER_CONTEXTS];
108 int64_t filter_threshes[MAX_REF_FRAMES][SWITCHABLE_FILTER_CONTEXTS];
109 int64_t filter_cache[SWITCHABLE_FILTER_CONTEXTS];
110 int64_t mask_filter;
111
112 int RDMULT;
113 int RDDIV;
114 } RD_OPT;
115
116 struct TileInfo;
117 struct VP9_COMP;
118 struct macroblock;
119
120 int vp9_compute_rd_mult(const struct VP9_COMP *cpi, int qindex);
121
122 void vp9_initialize_rd_consts(struct VP9_COMP *cpi);
123
124 void vp9_initialize_me_consts(struct VP9_COMP *cpi, int qindex);
125
126 void vp9_model_rd_from_var_lapndz(unsigned int var, unsigned int n,
127 unsigned int qstep, int *rate,
128 int64_t *dist);
129
130 int vp9_get_switchable_rate(const struct VP9_COMP *cpi);
131
132 const YV12_BUFFER_CONFIG *vp9_get_scaled_ref_frame(const struct VP9_COMP *cpi,
133 int ref_frame);
134
135 void vp9_init_me_luts();
136
137 void vp9_get_entropy_contexts(BLOCK_SIZE bsize, TX_SIZE tx_size,
138 const struct macroblockd_plane *pd,
139 ENTROPY_CONTEXT t_above[16],
140 ENTROPY_CONTEXT t_left[16]);
141
142 void vp9_set_rd_speed_thresholds(struct VP9_COMP *cpi);
143
144 void vp9_set_rd_speed_thresholds_sub8x8(struct VP9_COMP *cpi);
145
rd_less_than_thresh(int64_t best_rd,int thresh,int thresh_fact)146 static INLINE int rd_less_than_thresh(int64_t best_rd, int thresh,
147 int thresh_fact) {
148 return best_rd < ((int64_t)thresh * thresh_fact >> 5) || thresh == INT_MAX;
149 }
150
151 void vp9_mv_pred(struct VP9_COMP *cpi, MACROBLOCK *x,
152 uint8_t *ref_y_buffer, int ref_y_stride,
153 int ref_frame, BLOCK_SIZE block_size);
154
155 void vp9_setup_pred_block(const MACROBLOCKD *xd,
156 struct buf_2d dst[MAX_MB_PLANE],
157 const YV12_BUFFER_CONFIG *src,
158 int mi_row, int mi_col,
159 const struct scale_factors *scale,
160 const struct scale_factors *scale_uv);
161 #ifdef __cplusplus
162 } // extern "C"
163 #endif
164
165 #endif // VP9_ENCODER_VP9_RD_H_
166