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_COMMON_VP9_ENTROPYMODE_H_
12#define VP9_COMMON_VP9_ENTROPYMODE_H_
13
14#include "vp9/common/vp9_blockd.h"
15#include "vp9/common/vp9_entropy.h"
16#include "vp9/common/vp9_entropymv.h"
17
18#ifdef __cplusplus
19extern "C" {
20#endif
21
22#define TX_SIZE_CONTEXTS 2
23#define SWITCHABLE_FILTERS 3   // number of switchable filters
24#define SWITCHABLE_FILTER_CONTEXTS (SWITCHABLE_FILTERS + 1)
25
26struct VP9Common;
27
28struct tx_probs {
29  vp9_prob p32x32[TX_SIZE_CONTEXTS][TX_SIZES - 1];
30  vp9_prob p16x16[TX_SIZE_CONTEXTS][TX_SIZES - 2];
31  vp9_prob p8x8[TX_SIZE_CONTEXTS][TX_SIZES - 3];
32};
33
34struct tx_counts {
35  unsigned int p32x32[TX_SIZE_CONTEXTS][TX_SIZES];
36  unsigned int p16x16[TX_SIZE_CONTEXTS][TX_SIZES - 1];
37  unsigned int p8x8[TX_SIZE_CONTEXTS][TX_SIZES - 2];
38};
39
40typedef struct frame_contexts {
41  vp9_prob y_mode_prob[BLOCK_SIZE_GROUPS][INTRA_MODES - 1];
42  vp9_prob uv_mode_prob[INTRA_MODES][INTRA_MODES - 1];
43  vp9_prob partition_prob[PARTITION_CONTEXTS][PARTITION_TYPES - 1];
44  vp9_coeff_probs_model coef_probs[TX_SIZES][PLANE_TYPES];
45  vp9_prob switchable_interp_prob[SWITCHABLE_FILTER_CONTEXTS]
46                                 [SWITCHABLE_FILTERS - 1];
47  vp9_prob inter_mode_probs[INTER_MODE_CONTEXTS][INTER_MODES - 1];
48  vp9_prob intra_inter_prob[INTRA_INTER_CONTEXTS];
49  vp9_prob comp_inter_prob[COMP_INTER_CONTEXTS];
50  vp9_prob single_ref_prob[REF_CONTEXTS][2];
51  vp9_prob comp_ref_prob[REF_CONTEXTS];
52  struct tx_probs tx_probs;
53  vp9_prob skip_probs[SKIP_CONTEXTS];
54  nmv_context nmvc;
55} FRAME_CONTEXT;
56
57typedef struct {
58  unsigned int y_mode[BLOCK_SIZE_GROUPS][INTRA_MODES];
59  unsigned int uv_mode[INTRA_MODES][INTRA_MODES];
60  unsigned int partition[PARTITION_CONTEXTS][PARTITION_TYPES];
61  vp9_coeff_count_model coef[TX_SIZES][PLANE_TYPES];
62  unsigned int eob_branch[TX_SIZES][PLANE_TYPES][REF_TYPES]
63                         [COEF_BANDS][COEFF_CONTEXTS];
64  unsigned int switchable_interp[SWITCHABLE_FILTER_CONTEXTS]
65                                [SWITCHABLE_FILTERS];
66  unsigned int inter_mode[INTER_MODE_CONTEXTS][INTER_MODES];
67  unsigned int intra_inter[INTRA_INTER_CONTEXTS][2];
68  unsigned int comp_inter[COMP_INTER_CONTEXTS][2];
69  unsigned int single_ref[REF_CONTEXTS][2][2];
70  unsigned int comp_ref[REF_CONTEXTS][2];
71  struct tx_counts tx;
72  unsigned int skip[SKIP_CONTEXTS][2];
73  nmv_context_counts mv;
74} FRAME_COUNTS;
75
76extern const vp9_prob vp9_kf_uv_mode_prob[INTRA_MODES][INTRA_MODES - 1];
77extern const vp9_prob vp9_kf_y_mode_prob[INTRA_MODES][INTRA_MODES]
78                                        [INTRA_MODES - 1];
79extern const vp9_prob vp9_kf_partition_probs[PARTITION_CONTEXTS]
80                                            [PARTITION_TYPES - 1];
81extern const vp9_tree_index vp9_intra_mode_tree[TREE_SIZE(INTRA_MODES)];
82extern const vp9_tree_index vp9_inter_mode_tree[TREE_SIZE(INTER_MODES)];
83extern const vp9_tree_index vp9_partition_tree[TREE_SIZE(PARTITION_TYPES)];
84extern const vp9_tree_index vp9_switchable_interp_tree
85                                [TREE_SIZE(SWITCHABLE_FILTERS)];
86
87void vp9_setup_past_independence(struct VP9Common *cm);
88
89void vp9_init_mode_probs(FRAME_CONTEXT *fc);
90
91void vp9_adapt_mode_probs(struct VP9Common *cm);
92
93void tx_counts_to_branch_counts_32x32(const unsigned int *tx_count_32x32p,
94                                      unsigned int (*ct_32x32p)[2]);
95void tx_counts_to_branch_counts_16x16(const unsigned int *tx_count_16x16p,
96                                      unsigned int (*ct_16x16p)[2]);
97void tx_counts_to_branch_counts_8x8(const unsigned int *tx_count_8x8p,
98                                    unsigned int (*ct_8x8p)[2]);
99
100static INLINE const vp9_prob *get_y_mode_probs(const MODE_INFO *mi,
101                                               const MODE_INFO *above_mi,
102                                               const MODE_INFO *left_mi,
103                                               int block) {
104  const MB_PREDICTION_MODE above = vp9_above_block_mode(mi, above_mi, block);
105  const MB_PREDICTION_MODE left = vp9_left_block_mode(mi, left_mi, block);
106  return vp9_kf_y_mode_prob[above][left];
107}
108
109#ifdef __cplusplus
110}  // extern "C"
111#endif
112
113#endif  // VP9_COMMON_VP9_ENTROPYMODE_H_
114