Coverage Report

Created: 2025-07-23 06:32

/src/aom/av1/common/entropy.c
Line
Count
Source
1
/*
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 * Copyright (c) 2016, Alliance for Open Media. All rights reserved.
3
 *
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 * This source code is subject to the terms of the BSD 2 Clause License and
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 * 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
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 * 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.
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 */
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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
24
137k
static int get_q_ctx(int q) {
25
137k
  if (q <= 20) return 0;
26
76.5k
  if (q <= 60) return 1;
27
37.8k
  if (q <= 120) return 2;
28
29.3k
  return 3;
29
37.8k
}
30
31
137k
void av1_default_coef_probs(AV1_COMMON *cm) {
32
137k
  const int index = get_q_ctx(cm->quant_params.base_qindex);
33
#if CONFIG_ENTROPY_STATS
34
  cm->coef_cdf_category = index;
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#endif
36
37
137k
  av1_copy(cm->fc->txb_skip_cdf, av1_default_txb_skip_cdfs[index]);
38
137k
  av1_copy(cm->fc->eob_extra_cdf, av1_default_eob_extra_cdfs[index]);
39
137k
  av1_copy(cm->fc->dc_sign_cdf, av1_default_dc_sign_cdfs[index]);
40
137k
  av1_copy(cm->fc->coeff_br_cdf, av1_default_coeff_lps_multi_cdfs[index]);
41
137k
  av1_copy(cm->fc->coeff_base_cdf, av1_default_coeff_base_multi_cdfs[index]);
42
137k
  av1_copy(cm->fc->coeff_base_eob_cdf,
43
137k
           av1_default_coeff_base_eob_multi_cdfs[index]);
44
137k
  av1_copy(cm->fc->eob_flag_cdf16, av1_default_eob_multi16_cdfs[index]);
45
137k
  av1_copy(cm->fc->eob_flag_cdf32, av1_default_eob_multi32_cdfs[index]);
46
137k
  av1_copy(cm->fc->eob_flag_cdf64, av1_default_eob_multi64_cdfs[index]);
47
137k
  av1_copy(cm->fc->eob_flag_cdf128, av1_default_eob_multi128_cdfs[index]);
48
137k
  av1_copy(cm->fc->eob_flag_cdf256, av1_default_eob_multi256_cdfs[index]);
49
137k
  av1_copy(cm->fc->eob_flag_cdf512, av1_default_eob_multi512_cdfs[index]);
50
137k
  av1_copy(cm->fc->eob_flag_cdf1024, av1_default_eob_multi1024_cdfs[index]);
51
137k
}
52
53
static inline void reset_cdf_symbol_counter(aom_cdf_prob *cdf_ptr, int num_cdfs,
54
3.82M
                                            int cdf_stride, int nsymbs) {
55
46.1M
  for (int i = 0; i < num_cdfs; i++) {
56
42.3M
    cdf_ptr[i * cdf_stride + nsymbs] = 0;
57
42.3M
  }
58
3.82M
}
59
60
#define RESET_CDF_COUNTER(cname, nsymbs) \
61
3.03M
  RESET_CDF_COUNTER_STRIDE(cname, nsymbs, CDF_SIZE(nsymbs))
62
63
#define RESET_CDF_COUNTER_STRIDE(cname, nsymbs, cdf_stride)          \
64
3.82M
  do {                                                               \
65
3.82M
    aom_cdf_prob *cdf_ptr = (aom_cdf_prob *)cname;                   \
66
3.82M
    int array_size = (int)sizeof(cname) / sizeof(aom_cdf_prob);      \
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3.82M
    int num_cdfs = array_size / cdf_stride;                          \
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3.82M
    reset_cdf_symbol_counter(cdf_ptr, num_cdfs, cdf_stride, nsymbs); \
69
3.82M
  } while (0)
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71
54.6k
static inline void reset_nmv_counter(nmv_context *nmv) {
72
54.6k
  RESET_CDF_COUNTER(nmv->joints_cdf, 4);
73
163k
  for (int i = 0; i < 2; i++) {
74
109k
    RESET_CDF_COUNTER(nmv->comps[i].classes_cdf, MV_CLASSES);
75
109k
    RESET_CDF_COUNTER(nmv->comps[i].class0_fp_cdf, MV_FP_SIZE);
76
109k
    RESET_CDF_COUNTER(nmv->comps[i].fp_cdf, MV_FP_SIZE);
77
109k
    RESET_CDF_COUNTER(nmv->comps[i].sign_cdf, 2);
78
109k
    RESET_CDF_COUNTER(nmv->comps[i].class0_hp_cdf, 2);
79
109k
    RESET_CDF_COUNTER(nmv->comps[i].hp_cdf, 2);
80
109k
    RESET_CDF_COUNTER(nmv->comps[i].class0_cdf, CLASS0_SIZE);
81
109k
    RESET_CDF_COUNTER(nmv->comps[i].bits_cdf, 2);
82
109k
  }
83
54.6k
}
84
85
27.3k
void av1_reset_cdf_symbol_counters(FRAME_CONTEXT *fc) {
86
27.3k
  RESET_CDF_COUNTER(fc->txb_skip_cdf, 2);
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27.3k
  RESET_CDF_COUNTER(fc->eob_extra_cdf, 2);
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27.3k
  RESET_CDF_COUNTER(fc->dc_sign_cdf, 2);
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27.3k
  RESET_CDF_COUNTER(fc->eob_flag_cdf16, 5);
90
27.3k
  RESET_CDF_COUNTER(fc->eob_flag_cdf32, 6);
91
27.3k
  RESET_CDF_COUNTER(fc->eob_flag_cdf64, 7);
92
27.3k
  RESET_CDF_COUNTER(fc->eob_flag_cdf128, 8);
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27.3k
  RESET_CDF_COUNTER(fc->eob_flag_cdf256, 9);
94
27.3k
  RESET_CDF_COUNTER(fc->eob_flag_cdf512, 10);
95
27.3k
  RESET_CDF_COUNTER(fc->eob_flag_cdf1024, 11);
96
27.3k
  RESET_CDF_COUNTER(fc->coeff_base_eob_cdf, 3);
97
27.3k
  RESET_CDF_COUNTER(fc->coeff_base_cdf, 4);
98
27.3k
  RESET_CDF_COUNTER(fc->coeff_br_cdf, BR_CDF_SIZE);
99
27.3k
  RESET_CDF_COUNTER(fc->newmv_cdf, 2);
100
27.3k
  RESET_CDF_COUNTER(fc->zeromv_cdf, 2);
101
27.3k
  RESET_CDF_COUNTER(fc->refmv_cdf, 2);
102
27.3k
  RESET_CDF_COUNTER(fc->drl_cdf, 2);
103
27.3k
  RESET_CDF_COUNTER(fc->inter_compound_mode_cdf, INTER_COMPOUND_MODES);
104
27.3k
  RESET_CDF_COUNTER(fc->compound_type_cdf, MASKED_COMPOUND_TYPES);
105
27.3k
  RESET_CDF_COUNTER(fc->wedge_idx_cdf, 16);
106
27.3k
  RESET_CDF_COUNTER(fc->interintra_cdf, 2);
107
27.3k
  RESET_CDF_COUNTER(fc->wedge_interintra_cdf, 2);
108
27.3k
  RESET_CDF_COUNTER(fc->interintra_mode_cdf, INTERINTRA_MODES);
109
27.3k
  RESET_CDF_COUNTER(fc->motion_mode_cdf, MOTION_MODES);
110
27.3k
  RESET_CDF_COUNTER(fc->obmc_cdf, 2);
111
27.3k
  RESET_CDF_COUNTER(fc->palette_y_size_cdf, PALETTE_SIZES);
112
27.3k
  RESET_CDF_COUNTER(fc->palette_uv_size_cdf, PALETTE_SIZES);
113
218k
  for (int j = 0; j < PALETTE_SIZES; j++) {
114
191k
    int nsymbs = j + PALETTE_MIN_SIZE;
115
191k
    RESET_CDF_COUNTER_STRIDE(fc->palette_y_color_index_cdf[j], nsymbs,
116
191k
                             CDF_SIZE(PALETTE_COLORS));
117
191k
    RESET_CDF_COUNTER_STRIDE(fc->palette_uv_color_index_cdf[j], nsymbs,
118
191k
                             CDF_SIZE(PALETTE_COLORS));
119
191k
  }
120
27.3k
  RESET_CDF_COUNTER(fc->palette_y_mode_cdf, 2);
121
27.3k
  RESET_CDF_COUNTER(fc->palette_uv_mode_cdf, 2);
122
27.3k
  RESET_CDF_COUNTER(fc->comp_inter_cdf, 2);
123
27.3k
  RESET_CDF_COUNTER(fc->single_ref_cdf, 2);
124
27.3k
  RESET_CDF_COUNTER(fc->comp_ref_type_cdf, 2);
125
27.3k
  RESET_CDF_COUNTER(fc->uni_comp_ref_cdf, 2);
126
27.3k
  RESET_CDF_COUNTER(fc->comp_ref_cdf, 2);
127
27.3k
  RESET_CDF_COUNTER(fc->comp_bwdref_cdf, 2);
128
27.3k
  RESET_CDF_COUNTER(fc->txfm_partition_cdf, 2);
129
27.3k
  RESET_CDF_COUNTER(fc->compound_index_cdf, 2);
130
27.3k
  RESET_CDF_COUNTER(fc->comp_group_idx_cdf, 2);
131
27.3k
  RESET_CDF_COUNTER(fc->skip_mode_cdfs, 2);
132
27.3k
  RESET_CDF_COUNTER(fc->skip_txfm_cdfs, 2);
133
27.3k
  RESET_CDF_COUNTER(fc->intra_inter_cdf, 2);
134
27.3k
  reset_nmv_counter(&fc->nmvc);
135
27.3k
  reset_nmv_counter(&fc->ndvc);
136
27.3k
  RESET_CDF_COUNTER(fc->intrabc_cdf, 2);
137
27.3k
  RESET_CDF_COUNTER(fc->seg.pred_cdf, 2);
138
27.3k
  RESET_CDF_COUNTER(fc->seg.spatial_pred_seg_cdf, MAX_SEGMENTS);
139
27.3k
  RESET_CDF_COUNTER(fc->filter_intra_cdfs, 2);
140
27.3k
  RESET_CDF_COUNTER(fc->filter_intra_mode_cdf, FILTER_INTRA_MODES);
141
27.3k
  RESET_CDF_COUNTER(fc->switchable_restore_cdf, RESTORE_SWITCHABLE_TYPES);
142
27.3k
  RESET_CDF_COUNTER(fc->wiener_restore_cdf, 2);
143
27.3k
  RESET_CDF_COUNTER(fc->sgrproj_restore_cdf, 2);
144
27.3k
  RESET_CDF_COUNTER(fc->y_mode_cdf, INTRA_MODES);
145
27.3k
  RESET_CDF_COUNTER_STRIDE(fc->uv_mode_cdf[0], UV_INTRA_MODES - 1,
146
27.3k
                           CDF_SIZE(UV_INTRA_MODES));
147
27.3k
  RESET_CDF_COUNTER(fc->uv_mode_cdf[1], UV_INTRA_MODES);
148
573k
  for (int i = 0; i < PARTITION_CONTEXTS; i++) {
149
546k
    if (i < 4) {
150
109k
      RESET_CDF_COUNTER_STRIDE(fc->partition_cdf[i], 4, CDF_SIZE(10));
151
436k
    } else if (i < 16) {
152
327k
      RESET_CDF_COUNTER(fc->partition_cdf[i], 10);
153
327k
    } else {
154
109k
      RESET_CDF_COUNTER_STRIDE(fc->partition_cdf[i], 8, CDF_SIZE(10));
155
109k
    }
156
546k
  }
157
27.3k
  RESET_CDF_COUNTER(fc->switchable_interp_cdf, SWITCHABLE_FILTERS);
158
27.3k
  RESET_CDF_COUNTER(fc->kf_y_cdf, INTRA_MODES);
159
27.3k
  RESET_CDF_COUNTER(fc->angle_delta_cdf, 2 * MAX_ANGLE_DELTA + 1);
160
27.3k
  RESET_CDF_COUNTER_STRIDE(fc->tx_size_cdf[0], MAX_TX_DEPTH,
161
27.3k
                           CDF_SIZE(MAX_TX_DEPTH + 1));
162
27.3k
  RESET_CDF_COUNTER(fc->tx_size_cdf[1], MAX_TX_DEPTH + 1);
163
27.3k
  RESET_CDF_COUNTER(fc->tx_size_cdf[2], MAX_TX_DEPTH + 1);
164
27.3k
  RESET_CDF_COUNTER(fc->tx_size_cdf[3], MAX_TX_DEPTH + 1);
165
27.3k
  RESET_CDF_COUNTER(fc->delta_q_cdf, DELTA_Q_PROBS + 1);
166
27.3k
  RESET_CDF_COUNTER(fc->delta_lf_cdf, DELTA_LF_PROBS + 1);
167
136k
  for (int i = 0; i < FRAME_LF_COUNT; i++) {
168
109k
    RESET_CDF_COUNTER(fc->delta_lf_multi_cdf[i], DELTA_LF_PROBS + 1);
169
109k
  }
170
27.3k
  RESET_CDF_COUNTER_STRIDE(fc->intra_ext_tx_cdf[1], 7, CDF_SIZE(TX_TYPES));
171
27.3k
  RESET_CDF_COUNTER_STRIDE(fc->intra_ext_tx_cdf[2], 5, CDF_SIZE(TX_TYPES));
172
27.3k
  RESET_CDF_COUNTER_STRIDE(fc->inter_ext_tx_cdf[1], 16, CDF_SIZE(TX_TYPES));
173
27.3k
  RESET_CDF_COUNTER_STRIDE(fc->inter_ext_tx_cdf[2], 12, CDF_SIZE(TX_TYPES));
174
27.3k
  RESET_CDF_COUNTER_STRIDE(fc->inter_ext_tx_cdf[3], 2, CDF_SIZE(TX_TYPES));
175
27.3k
  RESET_CDF_COUNTER(fc->cfl_sign_cdf, CFL_JOINT_SIGNS);
176
27.3k
  RESET_CDF_COUNTER(fc->cfl_alpha_cdf, CFL_ALPHABET_SIZE);
177
27.3k
}