1 /*
2 * Copyright (c) 2016, Alliance for Open Media. All rights reserved
3 *
4 * This source code is subject to the terms of the BSD 2 Clause License and
5 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
6 * was not distributed with this source code in the LICENSE file, you can
7 * obtain it at www.aomedia.org/license/software. If the Alliance for Open
8 * Media Patent License 1.0 was not distributed with this source code in the
9 * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
10 */
11
12 #include "config/aom_config.h"
13
14 #include "aom/aom_integer.h"
15 #include "aom_mem/aom_mem.h"
16 #include "av1/common/av1_common_int.h"
17 #include "av1/common/blockd.h"
18 #include "av1/common/entropy.h"
19 #include "av1/common/entropymode.h"
20 #include "av1/common/scan.h"
21 #include "av1/common/token_cdfs.h"
22 #include "av1/common/txb_common.h"
23
get_q_ctx(int q)24 static int get_q_ctx(int q) {
25 if (q <= 20) return 0;
26 if (q <= 60) return 1;
27 if (q <= 120) return 2;
28 return 3;
29 }
30
av1_default_coef_probs(AV1_COMMON * cm)31 void av1_default_coef_probs(AV1_COMMON *cm) {
32 const int index = get_q_ctx(cm->quant_params.base_qindex);
33 #if CONFIG_ENTROPY_STATS
34 cm->coef_cdf_category = index;
35 #endif
36
37 av1_copy(cm->fc->txb_skip_cdf, av1_default_txb_skip_cdfs[index]);
38 av1_copy(cm->fc->eob_extra_cdf, av1_default_eob_extra_cdfs[index]);
39 av1_copy(cm->fc->dc_sign_cdf, av1_default_dc_sign_cdfs[index]);
40 av1_copy(cm->fc->coeff_br_cdf, av1_default_coeff_lps_multi_cdfs[index]);
41 av1_copy(cm->fc->coeff_base_cdf, av1_default_coeff_base_multi_cdfs[index]);
42 av1_copy(cm->fc->coeff_base_eob_cdf,
43 av1_default_coeff_base_eob_multi_cdfs[index]);
44 av1_copy(cm->fc->eob_flag_cdf16, av1_default_eob_multi16_cdfs[index]);
45 av1_copy(cm->fc->eob_flag_cdf32, av1_default_eob_multi32_cdfs[index]);
46 av1_copy(cm->fc->eob_flag_cdf64, av1_default_eob_multi64_cdfs[index]);
47 av1_copy(cm->fc->eob_flag_cdf128, av1_default_eob_multi128_cdfs[index]);
48 av1_copy(cm->fc->eob_flag_cdf256, av1_default_eob_multi256_cdfs[index]);
49 av1_copy(cm->fc->eob_flag_cdf512, av1_default_eob_multi512_cdfs[index]);
50 av1_copy(cm->fc->eob_flag_cdf1024, av1_default_eob_multi1024_cdfs[index]);
51 }
52
reset_cdf_symbol_counter(aom_cdf_prob * cdf_ptr,int num_cdfs,int cdf_stride,int nsymbs)53 static AOM_INLINE void reset_cdf_symbol_counter(aom_cdf_prob *cdf_ptr,
54 int num_cdfs, int cdf_stride,
55 int nsymbs) {
56 for (int i = 0; i < num_cdfs; i++) {
57 cdf_ptr[i * cdf_stride + nsymbs] = 0;
58 }
59 }
60
61 #define RESET_CDF_COUNTER(cname, nsymbs) \
62 RESET_CDF_COUNTER_STRIDE(cname, nsymbs, CDF_SIZE(nsymbs))
63
64 #define RESET_CDF_COUNTER_STRIDE(cname, nsymbs, cdf_stride) \
65 do { \
66 aom_cdf_prob *cdf_ptr = (aom_cdf_prob *)cname; \
67 int array_size = (int)sizeof(cname) / sizeof(aom_cdf_prob); \
68 int num_cdfs = array_size / cdf_stride; \
69 reset_cdf_symbol_counter(cdf_ptr, num_cdfs, cdf_stride, nsymbs); \
70 } while (0)
71
reset_nmv_counter(nmv_context * nmv)72 static AOM_INLINE void reset_nmv_counter(nmv_context *nmv) {
73 RESET_CDF_COUNTER(nmv->joints_cdf, 4);
74 for (int i = 0; i < 2; i++) {
75 RESET_CDF_COUNTER(nmv->comps[i].classes_cdf, MV_CLASSES);
76 RESET_CDF_COUNTER(nmv->comps[i].class0_fp_cdf, MV_FP_SIZE);
77 RESET_CDF_COUNTER(nmv->comps[i].fp_cdf, MV_FP_SIZE);
78 RESET_CDF_COUNTER(nmv->comps[i].sign_cdf, 2);
79 RESET_CDF_COUNTER(nmv->comps[i].class0_hp_cdf, 2);
80 RESET_CDF_COUNTER(nmv->comps[i].hp_cdf, 2);
81 RESET_CDF_COUNTER(nmv->comps[i].class0_cdf, CLASS0_SIZE);
82 RESET_CDF_COUNTER(nmv->comps[i].bits_cdf, 2);
83 }
84 }
85
av1_reset_cdf_symbol_counters(FRAME_CONTEXT * fc)86 void av1_reset_cdf_symbol_counters(FRAME_CONTEXT *fc) {
87 RESET_CDF_COUNTER(fc->txb_skip_cdf, 2);
88 RESET_CDF_COUNTER(fc->eob_extra_cdf, 2);
89 RESET_CDF_COUNTER(fc->dc_sign_cdf, 2);
90 RESET_CDF_COUNTER(fc->eob_flag_cdf16, 5);
91 RESET_CDF_COUNTER(fc->eob_flag_cdf32, 6);
92 RESET_CDF_COUNTER(fc->eob_flag_cdf64, 7);
93 RESET_CDF_COUNTER(fc->eob_flag_cdf128, 8);
94 RESET_CDF_COUNTER(fc->eob_flag_cdf256, 9);
95 RESET_CDF_COUNTER(fc->eob_flag_cdf512, 10);
96 RESET_CDF_COUNTER(fc->eob_flag_cdf1024, 11);
97 RESET_CDF_COUNTER(fc->coeff_base_eob_cdf, 3);
98 RESET_CDF_COUNTER(fc->coeff_base_cdf, 4);
99 RESET_CDF_COUNTER(fc->coeff_br_cdf, BR_CDF_SIZE);
100 RESET_CDF_COUNTER(fc->newmv_cdf, 2);
101 RESET_CDF_COUNTER(fc->zeromv_cdf, 2);
102 RESET_CDF_COUNTER(fc->refmv_cdf, 2);
103 RESET_CDF_COUNTER(fc->drl_cdf, 2);
104 RESET_CDF_COUNTER(fc->inter_compound_mode_cdf, INTER_COMPOUND_MODES);
105 RESET_CDF_COUNTER(fc->compound_type_cdf, MASKED_COMPOUND_TYPES);
106 RESET_CDF_COUNTER(fc->wedge_idx_cdf, 16);
107 RESET_CDF_COUNTER(fc->interintra_cdf, 2);
108 RESET_CDF_COUNTER(fc->wedge_interintra_cdf, 2);
109 RESET_CDF_COUNTER(fc->interintra_mode_cdf, INTERINTRA_MODES);
110 RESET_CDF_COUNTER(fc->motion_mode_cdf, MOTION_MODES);
111 RESET_CDF_COUNTER(fc->obmc_cdf, 2);
112 RESET_CDF_COUNTER(fc->palette_y_size_cdf, PALETTE_SIZES);
113 RESET_CDF_COUNTER(fc->palette_uv_size_cdf, PALETTE_SIZES);
114 for (int j = 0; j < PALETTE_SIZES; j++) {
115 int nsymbs = j + PALETTE_MIN_SIZE;
116 RESET_CDF_COUNTER_STRIDE(fc->palette_y_color_index_cdf[j], nsymbs,
117 CDF_SIZE(PALETTE_COLORS));
118 RESET_CDF_COUNTER_STRIDE(fc->palette_uv_color_index_cdf[j], nsymbs,
119 CDF_SIZE(PALETTE_COLORS));
120 }
121 RESET_CDF_COUNTER(fc->palette_y_mode_cdf, 2);
122 RESET_CDF_COUNTER(fc->palette_uv_mode_cdf, 2);
123 RESET_CDF_COUNTER(fc->comp_inter_cdf, 2);
124 RESET_CDF_COUNTER(fc->single_ref_cdf, 2);
125 RESET_CDF_COUNTER(fc->comp_ref_type_cdf, 2);
126 RESET_CDF_COUNTER(fc->uni_comp_ref_cdf, 2);
127 RESET_CDF_COUNTER(fc->comp_ref_cdf, 2);
128 RESET_CDF_COUNTER(fc->comp_bwdref_cdf, 2);
129 RESET_CDF_COUNTER(fc->txfm_partition_cdf, 2);
130 RESET_CDF_COUNTER(fc->compound_index_cdf, 2);
131 RESET_CDF_COUNTER(fc->comp_group_idx_cdf, 2);
132 RESET_CDF_COUNTER(fc->skip_mode_cdfs, 2);
133 RESET_CDF_COUNTER(fc->skip_txfm_cdfs, 2);
134 RESET_CDF_COUNTER(fc->intra_inter_cdf, 2);
135 reset_nmv_counter(&fc->nmvc);
136 reset_nmv_counter(&fc->ndvc);
137 RESET_CDF_COUNTER(fc->intrabc_cdf, 2);
138 RESET_CDF_COUNTER(fc->seg.tree_cdf, MAX_SEGMENTS);
139 RESET_CDF_COUNTER(fc->seg.pred_cdf, 2);
140 RESET_CDF_COUNTER(fc->seg.spatial_pred_seg_cdf, MAX_SEGMENTS);
141 RESET_CDF_COUNTER(fc->filter_intra_cdfs, 2);
142 RESET_CDF_COUNTER(fc->filter_intra_mode_cdf, FILTER_INTRA_MODES);
143 RESET_CDF_COUNTER(fc->switchable_restore_cdf, RESTORE_SWITCHABLE_TYPES);
144 RESET_CDF_COUNTER(fc->wiener_restore_cdf, 2);
145 RESET_CDF_COUNTER(fc->sgrproj_restore_cdf, 2);
146 RESET_CDF_COUNTER(fc->y_mode_cdf, INTRA_MODES);
147 RESET_CDF_COUNTER_STRIDE(fc->uv_mode_cdf[0], UV_INTRA_MODES - 1,
148 CDF_SIZE(UV_INTRA_MODES));
149 RESET_CDF_COUNTER(fc->uv_mode_cdf[1], UV_INTRA_MODES);
150 for (int i = 0; i < PARTITION_CONTEXTS; i++) {
151 if (i < 4) {
152 RESET_CDF_COUNTER_STRIDE(fc->partition_cdf[i], 4, CDF_SIZE(10));
153 } else if (i < 16) {
154 RESET_CDF_COUNTER(fc->partition_cdf[i], 10);
155 } else {
156 RESET_CDF_COUNTER_STRIDE(fc->partition_cdf[i], 8, CDF_SIZE(10));
157 }
158 }
159 RESET_CDF_COUNTER(fc->switchable_interp_cdf, SWITCHABLE_FILTERS);
160 RESET_CDF_COUNTER(fc->kf_y_cdf, INTRA_MODES);
161 RESET_CDF_COUNTER(fc->angle_delta_cdf, 2 * MAX_ANGLE_DELTA + 1);
162 RESET_CDF_COUNTER_STRIDE(fc->tx_size_cdf[0], MAX_TX_DEPTH,
163 CDF_SIZE(MAX_TX_DEPTH + 1));
164 RESET_CDF_COUNTER(fc->tx_size_cdf[1], MAX_TX_DEPTH + 1);
165 RESET_CDF_COUNTER(fc->tx_size_cdf[2], MAX_TX_DEPTH + 1);
166 RESET_CDF_COUNTER(fc->tx_size_cdf[3], MAX_TX_DEPTH + 1);
167 RESET_CDF_COUNTER(fc->delta_q_cdf, DELTA_Q_PROBS + 1);
168 RESET_CDF_COUNTER(fc->delta_lf_cdf, DELTA_LF_PROBS + 1);
169 for (int i = 0; i < FRAME_LF_COUNT; i++) {
170 RESET_CDF_COUNTER(fc->delta_lf_multi_cdf[i], DELTA_LF_PROBS + 1);
171 }
172 RESET_CDF_COUNTER_STRIDE(fc->intra_ext_tx_cdf[1], 7, CDF_SIZE(TX_TYPES));
173 RESET_CDF_COUNTER_STRIDE(fc->intra_ext_tx_cdf[2], 5, CDF_SIZE(TX_TYPES));
174 RESET_CDF_COUNTER_STRIDE(fc->inter_ext_tx_cdf[1], 16, CDF_SIZE(TX_TYPES));
175 RESET_CDF_COUNTER_STRIDE(fc->inter_ext_tx_cdf[2], 12, CDF_SIZE(TX_TYPES));
176 RESET_CDF_COUNTER_STRIDE(fc->inter_ext_tx_cdf[3], 2, CDF_SIZE(TX_TYPES));
177 RESET_CDF_COUNTER(fc->cfl_sign_cdf, CFL_JOINT_SIGNS);
178 RESET_CDF_COUNTER(fc->cfl_alpha_cdf, CFL_ALPHABET_SIZE);
179 }
180