xref: /aosp_15_r20/external/libaom/av1/encoder/encoder_utils.c (revision 77c1e3ccc04c968bd2bc212e87364f250e820521)
1 /*
2  * Copyright (c) 2020, 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 <string.h>
13 
14 #include "aom/aomcx.h"
15 
16 #include "av1/common/av1_common_int.h"
17 #include "av1/encoder/bitstream.h"
18 #include "av1/encoder/encodeframe.h"
19 #include "av1/encoder/encoder.h"
20 #include "av1/encoder/encoder_alloc.h"
21 #include "av1/encoder/encodetxb.h"
22 #include "av1/encoder/encoder_utils.h"
23 #include "av1/encoder/grain_test_vectors.h"
24 #include "av1/encoder/mv_prec.h"
25 #include "av1/encoder/rc_utils.h"
26 #include "av1/encoder/rdopt.h"
27 #include "av1/encoder/segmentation.h"
28 #include "av1/encoder/superres_scale.h"
29 #include "av1/encoder/tpl_model.h"
30 #include "av1/encoder/var_based_part.h"
31 
32 #if CONFIG_TUNE_VMAF
33 #include "av1/encoder/tune_vmaf.h"
34 #endif
35 
36 #define MIN_BOOST_COMBINE_FACTOR 4.0
37 #define MAX_BOOST_COMBINE_FACTOR 12.0
38 
39 const int default_tx_type_probs[FRAME_UPDATE_TYPES][TX_SIZES_ALL][TX_TYPES] = {
40   { { 221, 189, 214, 292, 0, 0, 0, 0, 0, 2, 38, 68, 0, 0, 0, 0 },
41     { 262, 203, 216, 239, 0, 0, 0, 0, 0, 1, 37, 66, 0, 0, 0, 0 },
42     { 315, 231, 239, 226, 0, 0, 0, 0, 0, 13, 0, 0, 0, 0, 0, 0 },
43     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
44     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
45     { 222, 188, 214, 287, 0, 0, 0, 0, 0, 2, 50, 61, 0, 0, 0, 0 },
46     { 256, 182, 205, 282, 0, 0, 0, 0, 0, 2, 21, 76, 0, 0, 0, 0 },
47     { 281, 214, 217, 222, 0, 0, 0, 0, 0, 1, 48, 41, 0, 0, 0, 0 },
48     { 263, 194, 225, 225, 0, 0, 0, 0, 0, 2, 15, 100, 0, 0, 0, 0 },
49     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
50     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
51     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
52     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
53     { 170, 192, 242, 293, 0, 0, 0, 0, 0, 1, 68, 58, 0, 0, 0, 0 },
54     { 199, 210, 213, 291, 0, 0, 0, 0, 0, 1, 14, 96, 0, 0, 0, 0 },
55     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
56     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
57     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
58     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } },
59   { { 106, 69, 107, 278, 9, 15, 20, 45, 49, 23, 23, 88, 36, 74, 25, 57 },
60     { 105, 72, 81, 98, 45, 49, 47, 50, 56, 72, 30, 81, 33, 95, 27, 83 },
61     { 211, 105, 109, 120, 57, 62, 43, 49, 52, 58, 42, 116, 0, 0, 0, 0 },
62     { 1008, 0, 0, 0, 0, 0, 0, 0, 0, 16, 0, 0, 0, 0, 0, 0 },
63     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
64     { 131, 57, 98, 172, 19, 40, 37, 64, 69, 22, 41, 52, 51, 77, 35, 59 },
65     { 176, 83, 93, 202, 22, 24, 28, 47, 50, 16, 12, 93, 26, 76, 17, 59 },
66     { 136, 72, 89, 95, 46, 59, 47, 56, 61, 68, 35, 51, 32, 82, 26, 69 },
67     { 122, 80, 87, 105, 49, 47, 46, 46, 57, 52, 13, 90, 19, 103, 15, 93 },
68     { 1009, 0, 0, 0, 0, 0, 0, 0, 0, 15, 0, 0, 0, 0, 0, 0 },
69     { 1011, 0, 0, 0, 0, 0, 0, 0, 0, 13, 0, 0, 0, 0, 0, 0 },
70     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
71     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
72     { 202, 20, 84, 114, 14, 60, 41, 79, 99, 21, 41, 15, 50, 84, 34, 66 },
73     { 196, 44, 23, 72, 30, 22, 28, 57, 67, 13, 4, 165, 15, 148, 9, 131 },
74     { 882, 0, 0, 0, 0, 0, 0, 0, 0, 142, 0, 0, 0, 0, 0, 0 },
75     { 840, 0, 0, 0, 0, 0, 0, 0, 0, 184, 0, 0, 0, 0, 0, 0 },
76     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
77     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } },
78   { { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
79     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
80     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
81     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
82     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
83     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
84     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
85     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
86     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
87     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
88     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
89     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
90     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
91     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
92     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
93     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
94     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
95     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
96     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 } },
97   { { 213, 110, 141, 269, 12, 16, 15, 19, 21, 11, 38, 68, 22, 29, 16, 24 },
98     { 216, 119, 128, 143, 38, 41, 26, 30, 31, 30, 42, 70, 23, 36, 19, 32 },
99     { 367, 149, 154, 154, 38, 35, 17, 21, 21, 10, 22, 36, 0, 0, 0, 0 },
100     { 1022, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0 },
101     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
102     { 219, 96, 127, 191, 21, 40, 25, 32, 34, 18, 45, 45, 33, 39, 26, 33 },
103     { 296, 99, 122, 198, 23, 21, 19, 24, 25, 13, 20, 64, 23, 32, 18, 27 },
104     { 275, 128, 142, 143, 35, 48, 23, 30, 29, 18, 42, 36, 18, 23, 14, 20 },
105     { 239, 132, 166, 175, 36, 27, 19, 21, 24, 14, 13, 85, 9, 31, 8, 25 },
106     { 1022, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0 },
107     { 1022, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0 },
108     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
109     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
110     { 309, 25, 79, 59, 25, 80, 34, 53, 61, 25, 49, 23, 43, 64, 36, 59 },
111     { 270, 57, 40, 54, 50, 42, 41, 53, 56, 28, 17, 81, 45, 86, 34, 70 },
112     { 1005, 0, 0, 0, 0, 0, 0, 0, 0, 19, 0, 0, 0, 0, 0, 0 },
113     { 992, 0, 0, 0, 0, 0, 0, 0, 0, 32, 0, 0, 0, 0, 0, 0 },
114     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
115     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } },
116   { { 133, 63, 55, 83, 57, 87, 58, 72, 68, 16, 24, 35, 29, 105, 25, 114 },
117     { 131, 75, 74, 60, 71, 77, 65, 66, 73, 33, 21, 79, 20, 83, 18, 78 },
118     { 276, 95, 82, 58, 86, 93, 63, 60, 64, 17, 38, 92, 0, 0, 0, 0 },
119     { 1006, 0, 0, 0, 0, 0, 0, 0, 0, 18, 0, 0, 0, 0, 0, 0 },
120     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
121     { 147, 49, 75, 78, 50, 97, 60, 67, 76, 17, 42, 35, 31, 93, 27, 80 },
122     { 157, 49, 58, 75, 61, 52, 56, 67, 69, 12, 15, 79, 24, 119, 11, 120 },
123     { 178, 69, 83, 77, 69, 85, 72, 77, 77, 20, 35, 40, 25, 48, 23, 46 },
124     { 174, 55, 64, 57, 73, 68, 62, 61, 75, 15, 12, 90, 17, 99, 16, 86 },
125     { 1008, 0, 0, 0, 0, 0, 0, 0, 0, 16, 0, 0, 0, 0, 0, 0 },
126     { 1018, 0, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0 },
127     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
128     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
129     { 266, 31, 63, 64, 21, 52, 39, 54, 63, 30, 52, 31, 48, 89, 46, 75 },
130     { 272, 26, 32, 44, 29, 31, 32, 53, 51, 13, 13, 88, 22, 153, 16, 149 },
131     { 923, 0, 0, 0, 0, 0, 0, 0, 0, 101, 0, 0, 0, 0, 0, 0 },
132     { 969, 0, 0, 0, 0, 0, 0, 0, 0, 55, 0, 0, 0, 0, 0, 0 },
133     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
134     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } },
135   { { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
136     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
137     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
138     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
139     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
140     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
141     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
142     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
143     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
144     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
145     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
146     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
147     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
148     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
149     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
150     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
151     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
152     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 },
153     { 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 } },
154   { { 158, 92, 125, 298, 12, 15, 20, 29, 31, 12, 29, 67, 34, 44, 23, 35 },
155     { 147, 94, 103, 123, 45, 48, 38, 41, 46, 48, 37, 78, 33, 63, 27, 53 },
156     { 268, 126, 125, 136, 54, 53, 31, 38, 38, 33, 35, 87, 0, 0, 0, 0 },
157     { 1018, 0, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0 },
158     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
159     { 159, 72, 103, 194, 20, 35, 37, 50, 56, 21, 39, 40, 51, 61, 38, 48 },
160     { 259, 86, 95, 188, 32, 20, 25, 34, 37, 13, 12, 85, 25, 53, 17, 43 },
161     { 189, 99, 113, 123, 45, 59, 37, 46, 48, 44, 39, 41, 31, 47, 26, 37 },
162     { 175, 110, 113, 128, 58, 38, 33, 33, 43, 29, 13, 100, 14, 68, 12, 57 },
163     { 1017, 0, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0 },
164     { 1019, 0, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0 },
165     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
166     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
167     { 208, 22, 84, 101, 21, 59, 44, 70, 90, 25, 59, 13, 64, 67, 49, 48 },
168     { 277, 52, 32, 63, 43, 26, 33, 48, 54, 11, 6, 130, 18, 119, 11, 101 },
169     { 963, 0, 0, 0, 0, 0, 0, 0, 0, 61, 0, 0, 0, 0, 0, 0 },
170     { 979, 0, 0, 0, 0, 0, 0, 0, 0, 45, 0, 0, 0, 0, 0, 0 },
171     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
172     { 1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }
173 };
174 
175 const int default_obmc_probs[FRAME_UPDATE_TYPES][BLOCK_SIZES_ALL] = {
176   { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
177   { 0,  0,  0,  106, 90, 90, 97, 67, 59, 70, 28,
178     30, 38, 16, 16,  16, 0,  0,  44, 50, 26, 25 },
179   { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
180   { 0,  0,  0,  98, 93, 97, 68, 82, 85, 33, 30,
181     33, 16, 16, 16, 16, 0,  0,  43, 37, 26, 16 },
182   { 0,  0,  0,  91, 80, 76, 78, 55, 49, 24, 16,
183     16, 16, 16, 16, 16, 0,  0,  29, 45, 16, 38 },
184   { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
185   { 0,  0,  0,  103, 89, 89, 89, 62, 63, 76, 34,
186     35, 32, 19, 16,  16, 0,  0,  49, 55, 29, 19 }
187 };
188 
189 const int default_warped_probs[FRAME_UPDATE_TYPES] = { 64, 64, 64, 64,
190                                                        64, 64, 64 };
191 
192 // TODO(yunqing): the default probs can be trained later from better
193 // performance.
194 const int default_switchable_interp_probs[FRAME_UPDATE_TYPES]
195                                          [SWITCHABLE_FILTER_CONTEXTS]
196                                          [SWITCHABLE_FILTERS] = {
197                                            { { 512, 512, 512 },
198                                              { 512, 512, 512 },
199                                              { 512, 512, 512 },
200                                              { 512, 512, 512 },
201                                              { 512, 512, 512 },
202                                              { 512, 512, 512 },
203                                              { 512, 512, 512 },
204                                              { 512, 512, 512 },
205                                              { 512, 512, 512 },
206                                              { 512, 512, 512 },
207                                              { 512, 512, 512 },
208                                              { 512, 512, 512 },
209                                              { 512, 512, 512 },
210                                              { 512, 512, 512 },
211                                              { 512, 512, 512 },
212                                              { 512, 512, 512 } },
213                                            { { 512, 512, 512 },
214                                              { 512, 512, 512 },
215                                              { 512, 512, 512 },
216                                              { 512, 512, 512 },
217                                              { 512, 512, 512 },
218                                              { 512, 512, 512 },
219                                              { 512, 512, 512 },
220                                              { 512, 512, 512 },
221                                              { 512, 512, 512 },
222                                              { 512, 512, 512 },
223                                              { 512, 512, 512 },
224                                              { 512, 512, 512 },
225                                              { 512, 512, 512 },
226                                              { 512, 512, 512 },
227                                              { 512, 512, 512 },
228                                              { 512, 512, 512 } },
229                                            { { 512, 512, 512 },
230                                              { 512, 512, 512 },
231                                              { 512, 512, 512 },
232                                              { 512, 512, 512 },
233                                              { 512, 512, 512 },
234                                              { 512, 512, 512 },
235                                              { 512, 512, 512 },
236                                              { 512, 512, 512 },
237                                              { 512, 512, 512 },
238                                              { 512, 512, 512 },
239                                              { 512, 512, 512 },
240                                              { 512, 512, 512 },
241                                              { 512, 512, 512 },
242                                              { 512, 512, 512 },
243                                              { 512, 512, 512 },
244                                              { 512, 512, 512 } },
245                                            { { 512, 512, 512 },
246                                              { 512, 512, 512 },
247                                              { 512, 512, 512 },
248                                              { 512, 512, 512 },
249                                              { 512, 512, 512 },
250                                              { 512, 512, 512 },
251                                              { 512, 512, 512 },
252                                              { 512, 512, 512 },
253                                              { 512, 512, 512 },
254                                              { 512, 512, 512 },
255                                              { 512, 512, 512 },
256                                              { 512, 512, 512 },
257                                              { 512, 512, 512 },
258                                              { 512, 512, 512 },
259                                              { 512, 512, 512 },
260                                              { 512, 512, 512 } },
261                                            { { 512, 512, 512 },
262                                              { 512, 512, 512 },
263                                              { 512, 512, 512 },
264                                              { 512, 512, 512 },
265                                              { 512, 512, 512 },
266                                              { 512, 512, 512 },
267                                              { 512, 512, 512 },
268                                              { 512, 512, 512 },
269                                              { 512, 512, 512 },
270                                              { 512, 512, 512 },
271                                              { 512, 512, 512 },
272                                              { 512, 512, 512 },
273                                              { 512, 512, 512 },
274                                              { 512, 512, 512 },
275                                              { 512, 512, 512 },
276                                              { 512, 512, 512 } },
277                                            { { 512, 512, 512 },
278                                              { 512, 512, 512 },
279                                              { 512, 512, 512 },
280                                              { 512, 512, 512 },
281                                              { 512, 512, 512 },
282                                              { 512, 512, 512 },
283                                              { 512, 512, 512 },
284                                              { 512, 512, 512 },
285                                              { 512, 512, 512 },
286                                              { 512, 512, 512 },
287                                              { 512, 512, 512 },
288                                              { 512, 512, 512 },
289                                              { 512, 512, 512 },
290                                              { 512, 512, 512 },
291                                              { 512, 512, 512 },
292                                              { 512, 512, 512 } },
293                                            { { 512, 512, 512 },
294                                              { 512, 512, 512 },
295                                              { 512, 512, 512 },
296                                              { 512, 512, 512 },
297                                              { 512, 512, 512 },
298                                              { 512, 512, 512 },
299                                              { 512, 512, 512 },
300                                              { 512, 512, 512 },
301                                              { 512, 512, 512 },
302                                              { 512, 512, 512 },
303                                              { 512, 512, 512 },
304                                              { 512, 512, 512 },
305                                              { 512, 512, 512 },
306                                              { 512, 512, 512 },
307                                              { 512, 512, 512 },
308                                              { 512, 512, 512 } }
309                                          };
310 
configure_static_seg_features(AV1_COMP * cpi)311 static void configure_static_seg_features(AV1_COMP *cpi) {
312   AV1_COMMON *const cm = &cpi->common;
313   const RATE_CONTROL *const rc = &cpi->rc;
314   struct segmentation *const seg = &cm->seg;
315 
316   double avg_q;
317 #if CONFIG_FPMT_TEST
318   avg_q = ((cpi->ppi->gf_group.frame_parallel_level[cpi->gf_frame_index] > 0) &&
319            (cpi->ppi->fpmt_unit_test_cfg == PARALLEL_SIMULATION_ENCODE))
320               ? cpi->ppi->p_rc.temp_avg_q
321               : cpi->ppi->p_rc.avg_q;
322 #else
323   avg_q = cpi->ppi->p_rc.avg_q;
324 #endif
325 
326   int high_q = (int)(avg_q > 48.0);
327   int qi_delta;
328 
329   // Disable and clear down for KF
330   if (cm->current_frame.frame_type == KEY_FRAME) {
331     // Clear down the global segmentation map
332     memset(cpi->enc_seg.map, 0, cm->mi_params.mi_rows * cm->mi_params.mi_cols);
333     seg->update_map = 0;
334     seg->update_data = 0;
335 
336     // Disable segmentation
337     av1_disable_segmentation(seg);
338 
339     // Clear down the segment features.
340     av1_clearall_segfeatures(seg);
341   } else if (cpi->refresh_frame.alt_ref_frame) {
342     // If this is an alt ref frame
343     // Clear down the global segmentation map
344     memset(cpi->enc_seg.map, 0, cm->mi_params.mi_rows * cm->mi_params.mi_cols);
345     seg->update_map = 0;
346     seg->update_data = 0;
347 
348     // Disable segmentation and individual segment features by default
349     av1_disable_segmentation(seg);
350     av1_clearall_segfeatures(seg);
351 
352     // If segmentation was enabled set those features needed for the
353     // arf itself.
354     if (seg->enabled) {
355       seg->update_map = 1;
356       seg->update_data = 1;
357 
358       qi_delta = av1_compute_qdelta(rc, avg_q, avg_q * 0.875,
359                                     cm->seq_params->bit_depth);
360       av1_set_segdata(seg, 1, SEG_LVL_ALT_Q, qi_delta - 2);
361       av1_set_segdata(seg, 1, SEG_LVL_ALT_LF_Y_H, -2);
362       av1_set_segdata(seg, 1, SEG_LVL_ALT_LF_Y_V, -2);
363       av1_set_segdata(seg, 1, SEG_LVL_ALT_LF_U, -2);
364       av1_set_segdata(seg, 1, SEG_LVL_ALT_LF_V, -2);
365 
366       av1_enable_segfeature(seg, 1, SEG_LVL_ALT_LF_Y_H);
367       av1_enable_segfeature(seg, 1, SEG_LVL_ALT_LF_Y_V);
368       av1_enable_segfeature(seg, 1, SEG_LVL_ALT_LF_U);
369       av1_enable_segfeature(seg, 1, SEG_LVL_ALT_LF_V);
370 
371       av1_enable_segfeature(seg, 1, SEG_LVL_ALT_Q);
372     }
373   } else if (seg->enabled) {
374     // All other frames if segmentation has been enabled
375 
376     // First normal frame in a valid gf or alt ref group
377     if (rc->frames_since_golden == 0) {
378       // Set up segment features for normal frames in an arf group
379       // Disable segmentation and clear down features if alt ref
380       // is not active for this group
381 
382       av1_disable_segmentation(seg);
383 
384       memset(cpi->enc_seg.map, 0,
385              cm->mi_params.mi_rows * cm->mi_params.mi_cols);
386 
387       seg->update_map = 0;
388       seg->update_data = 0;
389 
390       av1_clearall_segfeatures(seg);
391     } else if (rc->is_src_frame_alt_ref) {
392       // Special case where we are coding over the top of a previous
393       // alt ref frame.
394       // Segment coding disabled for compred testing
395 
396       // Enable ref frame features for segment 0 as well
397       av1_enable_segfeature(seg, 0, SEG_LVL_REF_FRAME);
398       av1_enable_segfeature(seg, 1, SEG_LVL_REF_FRAME);
399 
400       // All mbs should use ALTREF_FRAME
401       av1_clear_segdata(seg, 0, SEG_LVL_REF_FRAME);
402       av1_set_segdata(seg, 0, SEG_LVL_REF_FRAME, ALTREF_FRAME);
403       av1_clear_segdata(seg, 1, SEG_LVL_REF_FRAME);
404       av1_set_segdata(seg, 1, SEG_LVL_REF_FRAME, ALTREF_FRAME);
405 
406       // Skip all MBs if high Q (0,0 mv and skip coeffs)
407       if (high_q) {
408         av1_enable_segfeature(seg, 0, SEG_LVL_SKIP);
409         av1_enable_segfeature(seg, 1, SEG_LVL_SKIP);
410       }
411       // Enable data update
412       seg->update_data = 1;
413     } else {
414       // All other frames.
415 
416       // No updates.. leave things as they are.
417       seg->update_map = 0;
418       seg->update_data = 0;
419     }
420   }
421 }
422 
av1_apply_active_map(AV1_COMP * cpi)423 void av1_apply_active_map(AV1_COMP *cpi) {
424   struct segmentation *const seg = &cpi->common.seg;
425   unsigned char *const seg_map = cpi->enc_seg.map;
426   const unsigned char *const active_map = cpi->active_map.map;
427 
428   assert(AM_SEGMENT_ID_ACTIVE == CR_SEGMENT_ID_BASE);
429 
430   // Disable the active_maps on intra_only frames or if the
431   // input map for the current frame has no inactive blocks.
432   if (frame_is_intra_only(&cpi->common) ||
433       cpi->rc.percent_blocks_inactive == 0) {
434     cpi->active_map.enabled = 0;
435     cpi->active_map.update = 1;
436   }
437 
438   if (cpi->active_map.update) {
439     if (cpi->active_map.enabled) {
440       const int num_mis =
441           cpi->common.mi_params.mi_rows * cpi->common.mi_params.mi_cols;
442       memcpy(seg_map, active_map, sizeof(active_map[0]) * num_mis);
443       av1_enable_segmentation(seg);
444       av1_enable_segfeature(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_SKIP);
445       av1_enable_segfeature(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_ALT_LF_Y_H);
446       av1_enable_segfeature(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_ALT_LF_Y_V);
447       av1_enable_segfeature(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_ALT_LF_U);
448       av1_enable_segfeature(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_ALT_LF_V);
449 
450       av1_set_segdata(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_ALT_LF_Y_H,
451                       -MAX_LOOP_FILTER);
452       av1_set_segdata(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_ALT_LF_Y_V,
453                       -MAX_LOOP_FILTER);
454       av1_set_segdata(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_ALT_LF_U,
455                       -MAX_LOOP_FILTER);
456       av1_set_segdata(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_ALT_LF_V,
457                       -MAX_LOOP_FILTER);
458     } else {
459       av1_disable_segfeature(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_SKIP);
460       av1_disable_segfeature(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_ALT_LF_Y_H);
461       av1_disable_segfeature(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_ALT_LF_Y_V);
462       av1_disable_segfeature(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_ALT_LF_U);
463       av1_disable_segfeature(seg, AM_SEGMENT_ID_INACTIVE, SEG_LVL_ALT_LF_V);
464       if (seg->enabled) {
465         seg->update_data = 1;
466         seg->update_map = 1;
467       }
468     }
469     cpi->active_map.update = 0;
470   }
471 }
472 
473 #if !CONFIG_REALTIME_ONLY
process_tpl_stats_frame(AV1_COMP * cpi)474 static void process_tpl_stats_frame(AV1_COMP *cpi) {
475   const GF_GROUP *const gf_group = &cpi->ppi->gf_group;
476   AV1_COMMON *const cm = &cpi->common;
477 
478   assert(IMPLIES(gf_group->size > 0, cpi->gf_frame_index < gf_group->size));
479 
480   const int tpl_idx = cpi->gf_frame_index;
481   TplParams *const tpl_data = &cpi->ppi->tpl_data;
482   TplDepFrame *tpl_frame = &tpl_data->tpl_frame[tpl_idx];
483   TplDepStats *tpl_stats = tpl_frame->tpl_stats_ptr;
484 
485   if (tpl_frame->is_valid) {
486     int tpl_stride = tpl_frame->stride;
487     double intra_cost_base = 0;
488     double mc_dep_cost_base = 0;
489     double cbcmp_base = 1;
490     const int step = 1 << tpl_data->tpl_stats_block_mis_log2;
491     const int row_step = step;
492     const int col_step_sr =
493         coded_to_superres_mi(step, cm->superres_scale_denominator);
494     const int mi_cols_sr = av1_pixels_to_mi(cm->superres_upscaled_width);
495 
496     for (int row = 0; row < cm->mi_params.mi_rows; row += row_step) {
497       for (int col = 0; col < mi_cols_sr; col += col_step_sr) {
498         TplDepStats *this_stats = &tpl_stats[av1_tpl_ptr_pos(
499             row, col, tpl_stride, tpl_data->tpl_stats_block_mis_log2)];
500         double cbcmp = (double)(this_stats->srcrf_dist);
501         int64_t mc_dep_delta =
502             RDCOST(tpl_frame->base_rdmult, this_stats->mc_dep_rate,
503                    this_stats->mc_dep_dist);
504         double dist_scaled = (double)(this_stats->recrf_dist << RDDIV_BITS);
505         intra_cost_base += log(dist_scaled) * cbcmp;
506         mc_dep_cost_base += log(dist_scaled + mc_dep_delta) * cbcmp;
507         cbcmp_base += cbcmp;
508       }
509     }
510 
511     if (mc_dep_cost_base == 0) {
512       tpl_frame->is_valid = 0;
513     } else {
514       cpi->rd.r0 = exp((intra_cost_base - mc_dep_cost_base) / cbcmp_base);
515       if (is_frame_tpl_eligible(gf_group, cpi->gf_frame_index)) {
516         if (cpi->ppi->lap_enabled) {
517           double min_boost_factor = sqrt(cpi->ppi->p_rc.baseline_gf_interval);
518           const int gfu_boost = get_gfu_boost_from_r0_lap(
519               min_boost_factor, MAX_GFUBOOST_FACTOR, cpi->rd.r0,
520               cpi->ppi->p_rc.num_stats_required_for_gfu_boost);
521           // printf("old boost %d new boost %d\n", cpi->rc.gfu_boost,
522           //        gfu_boost);
523           cpi->ppi->p_rc.gfu_boost = combine_prior_with_tpl_boost(
524               min_boost_factor, MAX_BOOST_COMBINE_FACTOR,
525               cpi->ppi->p_rc.gfu_boost, gfu_boost,
526               cpi->ppi->p_rc.num_stats_used_for_gfu_boost);
527         } else {
528           // TPL may only look at a subset of frame in the gf group when the
529           // speed feature 'reduce_num_frames' is on, which affects the r0
530           // calcuation. Thus, to compensate for TPL not using all frames a
531           // factor to adjust r0 is used.
532           const int gfu_boost =
533               (int)(200.0 * cpi->ppi->tpl_data.r0_adjust_factor / cpi->rd.r0);
534           cpi->ppi->p_rc.gfu_boost = combine_prior_with_tpl_boost(
535               MIN_BOOST_COMBINE_FACTOR, MAX_BOOST_COMBINE_FACTOR,
536               cpi->ppi->p_rc.gfu_boost, gfu_boost, cpi->rc.frames_to_key);
537         }
538       }
539     }
540   }
541 }
542 #endif  // !CONFIG_REALTIME_ONLY
543 
av1_set_size_dependent_vars(AV1_COMP * cpi,int * q,int * bottom_index,int * top_index)544 void av1_set_size_dependent_vars(AV1_COMP *cpi, int *q, int *bottom_index,
545                                  int *top_index) {
546   AV1_COMMON *const cm = &cpi->common;
547 
548   // Setup variables that depend on the dimensions of the frame.
549   av1_set_speed_features_framesize_dependent(cpi, cpi->speed);
550 
551 #if !CONFIG_REALTIME_ONLY
552   GF_GROUP *gf_group = &cpi->ppi->gf_group;
553   if (cpi->oxcf.algo_cfg.enable_tpl_model &&
554       av1_tpl_stats_ready(&cpi->ppi->tpl_data, cpi->gf_frame_index)) {
555     process_tpl_stats_frame(cpi);
556     av1_tpl_rdmult_setup(cpi);
557   }
558 #endif
559 
560   // Decide q and q bounds.
561   *q = av1_rc_pick_q_and_bounds(cpi, cm->width, cm->height, cpi->gf_frame_index,
562                                 bottom_index, top_index);
563 
564   if (cpi->oxcf.rc_cfg.mode == AOM_CBR && cpi->rc.force_max_q) {
565     *q = cpi->rc.worst_quality;
566     cpi->rc.force_max_q = 0;
567   }
568 
569 #if !CONFIG_REALTIME_ONLY
570   if (cpi->oxcf.rc_cfg.mode == AOM_Q &&
571       cpi->ppi->tpl_data.tpl_frame[cpi->gf_frame_index].is_valid &&
572       !is_lossless_requested(&cpi->oxcf.rc_cfg)) {
573     const RateControlCfg *const rc_cfg = &cpi->oxcf.rc_cfg;
574     const int tpl_q = av1_tpl_get_q_index(
575         &cpi->ppi->tpl_data, cpi->gf_frame_index, cpi->rc.active_worst_quality,
576         cm->seq_params->bit_depth);
577     *q = clamp(tpl_q, rc_cfg->best_allowed_q, rc_cfg->worst_allowed_q);
578     *top_index = *bottom_index = *q;
579     if (gf_group->update_type[cpi->gf_frame_index] == ARF_UPDATE)
580       cpi->ppi->p_rc.arf_q = *q;
581   }
582 
583   if (cpi->oxcf.q_cfg.use_fixed_qp_offsets && cpi->oxcf.rc_cfg.mode == AOM_Q) {
584     if (is_frame_tpl_eligible(gf_group, cpi->gf_frame_index)) {
585       const double qratio_grad =
586           cpi->ppi->p_rc.baseline_gf_interval > 20 ? 0.2 : 0.3;
587       const double qstep_ratio =
588           0.2 +
589           (1.0 - (double)cpi->rc.active_worst_quality / MAXQ) * qratio_grad;
590       *q = av1_get_q_index_from_qstep_ratio(
591           cpi->rc.active_worst_quality, qstep_ratio, cm->seq_params->bit_depth);
592       *top_index = *bottom_index = *q;
593       if (gf_group->update_type[cpi->gf_frame_index] == ARF_UPDATE ||
594           gf_group->update_type[cpi->gf_frame_index] == KF_UPDATE ||
595           gf_group->update_type[cpi->gf_frame_index] == GF_UPDATE)
596         cpi->ppi->p_rc.arf_q = *q;
597     } else if (gf_group->layer_depth[cpi->gf_frame_index] <
598                gf_group->max_layer_depth) {
599       int this_height = gf_group->layer_depth[cpi->gf_frame_index];
600       int arf_q = cpi->ppi->p_rc.arf_q;
601       while (this_height > 1) {
602         arf_q = (arf_q + cpi->oxcf.rc_cfg.cq_level + 1) / 2;
603         --this_height;
604       }
605       *top_index = *bottom_index = *q = arf_q;
606     }
607   }
608 #endif
609 
610   // Configure experimental use of segmentation for enhanced coding of
611   // static regions if indicated.
612   // Only allowed in the second pass of a two pass encode, as it requires
613   // lagged coding, and if the relevant speed feature flag is set.
614   if (is_stat_consumption_stage_twopass(cpi) &&
615       cpi->sf.hl_sf.static_segmentation)
616     configure_static_seg_features(cpi);
617 }
618 
619 #if !CONFIG_REALTIME_ONLY
reset_film_grain_chroma_params(aom_film_grain_t * pars)620 static void reset_film_grain_chroma_params(aom_film_grain_t *pars) {
621   pars->num_cr_points = 0;
622   pars->cr_mult = 0;
623   pars->cr_luma_mult = 0;
624   memset(pars->scaling_points_cr, 0, sizeof(pars->scaling_points_cr));
625   memset(pars->ar_coeffs_cr, 0, sizeof(pars->ar_coeffs_cr));
626   pars->num_cb_points = 0;
627   pars->cb_mult = 0;
628   pars->cb_luma_mult = 0;
629   pars->chroma_scaling_from_luma = 0;
630   memset(pars->scaling_points_cb, 0, sizeof(pars->scaling_points_cb));
631   memset(pars->ar_coeffs_cb, 0, sizeof(pars->ar_coeffs_cb));
632 }
633 
av1_update_film_grain_parameters_seq(struct AV1_PRIMARY * ppi,const AV1EncoderConfig * oxcf)634 void av1_update_film_grain_parameters_seq(struct AV1_PRIMARY *ppi,
635                                           const AV1EncoderConfig *oxcf) {
636   SequenceHeader *const seq_params = &ppi->seq_params;
637   const TuneCfg *const tune_cfg = &oxcf->tune_cfg;
638 
639   if (tune_cfg->film_grain_test_vector || tune_cfg->film_grain_table_filename ||
640       tune_cfg->content == AOM_CONTENT_FILM) {
641     seq_params->film_grain_params_present = 1;
642   } else {
643 #if CONFIG_DENOISE
644     seq_params->film_grain_params_present = (oxcf->noise_level > 0);
645 #else
646     seq_params->film_grain_params_present = 0;
647 #endif
648   }
649 }
650 
av1_update_film_grain_parameters(struct AV1_COMP * cpi,const AV1EncoderConfig * oxcf)651 void av1_update_film_grain_parameters(struct AV1_COMP *cpi,
652                                       const AV1EncoderConfig *oxcf) {
653   AV1_COMMON *const cm = &cpi->common;
654   const TuneCfg *const tune_cfg = &oxcf->tune_cfg;
655 
656   if (cpi->film_grain_table) {
657     aom_film_grain_table_free(cpi->film_grain_table);
658     aom_free(cpi->film_grain_table);
659     cpi->film_grain_table = NULL;
660   }
661 
662   if (tune_cfg->film_grain_test_vector) {
663     if (cm->current_frame.frame_type == KEY_FRAME) {
664       memcpy(&cm->film_grain_params,
665              film_grain_test_vectors + tune_cfg->film_grain_test_vector - 1,
666              sizeof(cm->film_grain_params));
667       if (oxcf->tool_cfg.enable_monochrome)
668         reset_film_grain_chroma_params(&cm->film_grain_params);
669       cm->film_grain_params.bit_depth = cm->seq_params->bit_depth;
670       if (cm->seq_params->color_range == AOM_CR_FULL_RANGE) {
671         cm->film_grain_params.clip_to_restricted_range = 0;
672       }
673     }
674   } else if (tune_cfg->film_grain_table_filename) {
675     CHECK_MEM_ERROR(cm, cpi->film_grain_table,
676                     aom_calloc(1, sizeof(*cpi->film_grain_table)));
677 
678     aom_film_grain_table_read(cpi->film_grain_table,
679                               tune_cfg->film_grain_table_filename, cm->error);
680   } else if (tune_cfg->content == AOM_CONTENT_FILM) {
681     cm->film_grain_params.bit_depth = cm->seq_params->bit_depth;
682     if (oxcf->tool_cfg.enable_monochrome)
683       reset_film_grain_chroma_params(&cm->film_grain_params);
684     if (cm->seq_params->color_range == AOM_CR_FULL_RANGE)
685       cm->film_grain_params.clip_to_restricted_range = 0;
686   } else {
687     memset(&cm->film_grain_params, 0, sizeof(cm->film_grain_params));
688   }
689 }
690 #endif  // !CONFIG_REALTIME_ONLY
691 
av1_scale_references(AV1_COMP * cpi,const InterpFilter filter,const int phase,const int use_optimized_scaler)692 void av1_scale_references(AV1_COMP *cpi, const InterpFilter filter,
693                           const int phase, const int use_optimized_scaler) {
694   AV1_COMMON *cm = &cpi->common;
695   const int num_planes = av1_num_planes(cm);
696   MV_REFERENCE_FRAME ref_frame;
697 
698   for (ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ++ref_frame) {
699     // Need to convert from AOM_REFFRAME to index into ref_mask (subtract 1).
700     if (cpi->ref_frame_flags & av1_ref_frame_flag_list[ref_frame]) {
701       BufferPool *const pool = cm->buffer_pool;
702       const YV12_BUFFER_CONFIG *const ref =
703           get_ref_frame_yv12_buf(cm, ref_frame);
704 
705       if (ref == NULL) {
706         cpi->scaled_ref_buf[ref_frame - 1] = NULL;
707         continue;
708       }
709 
710       // For RTC-SVC: if force_zero_mode_spatial_ref is enabled, check if the
711       // motion search can be skipped for the references: last, golden, altref.
712       // If so, we can skip scaling that reference.
713       if (cpi->ppi->use_svc && cpi->svc.force_zero_mode_spatial_ref &&
714           cpi->ppi->rtc_ref.set_ref_frame_config) {
715         if (ref_frame == LAST_FRAME && cpi->svc.skip_mvsearch_last) continue;
716         if (ref_frame == GOLDEN_FRAME && cpi->svc.skip_mvsearch_gf) continue;
717         if (ref_frame == ALTREF_FRAME && cpi->svc.skip_mvsearch_altref)
718           continue;
719       }
720       // For RTC with superres on: golden reference only needs to be scaled
721       // if it was refreshed in previous frame.
722       if (is_one_pass_rt_params(cpi) &&
723           cpi->oxcf.superres_cfg.enable_superres && ref_frame == GOLDEN_FRAME &&
724           cpi->rc.frame_num_last_gf_refresh <
725               (int)cm->current_frame.frame_number - 1) {
726         continue;
727       }
728 
729       if (ref->y_crop_width != cm->width || ref->y_crop_height != cm->height) {
730         // Replace the reference buffer with a copy having a thicker border,
731         // if the reference buffer is higher resolution than the current
732         // frame, and the border is thin.
733         if ((ref->y_crop_width > cm->width ||
734              ref->y_crop_height > cm->height) &&
735             ref->border < AOM_BORDER_IN_PIXELS) {
736           RefCntBuffer *ref_fb = get_ref_frame_buf(cm, ref_frame);
737           if (aom_yv12_realloc_with_new_border(
738                   &ref_fb->buf, AOM_BORDER_IN_PIXELS,
739                   cm->features.byte_alignment, cpi->alloc_pyramid,
740                   num_planes) != 0) {
741             aom_internal_error(cm->error, AOM_CODEC_MEM_ERROR,
742                                "Failed to allocate frame buffer");
743           }
744         }
745         int force_scaling = 0;
746         RefCntBuffer *new_fb = cpi->scaled_ref_buf[ref_frame - 1];
747         if (new_fb == NULL) {
748           const int new_fb_idx = get_free_fb(cm);
749           if (new_fb_idx == INVALID_IDX) {
750             aom_internal_error(cm->error, AOM_CODEC_MEM_ERROR,
751                                "Unable to find free frame buffer");
752           }
753           force_scaling = 1;
754           new_fb = &pool->frame_bufs[new_fb_idx];
755         }
756 
757         if (force_scaling || new_fb->buf.y_crop_width != cm->width ||
758             new_fb->buf.y_crop_height != cm->height) {
759           if (aom_realloc_frame_buffer(
760                   &new_fb->buf, cm->width, cm->height,
761                   cm->seq_params->subsampling_x, cm->seq_params->subsampling_y,
762                   cm->seq_params->use_highbitdepth, AOM_BORDER_IN_PIXELS,
763                   cm->features.byte_alignment, NULL, NULL, NULL, false, 0)) {
764             if (force_scaling) {
765               // Release the reference acquired in the get_free_fb() call above.
766               --new_fb->ref_count;
767             }
768             aom_internal_error(cm->error, AOM_CODEC_MEM_ERROR,
769                                "Failed to allocate frame buffer");
770           }
771           bool has_optimized_scaler = av1_has_optimized_scaler(
772               ref->y_crop_width, ref->y_crop_height, new_fb->buf.y_crop_width,
773               new_fb->buf.y_crop_height);
774           if (num_planes > 1) {
775             has_optimized_scaler =
776                 has_optimized_scaler &&
777                 av1_has_optimized_scaler(
778                     ref->uv_crop_width, ref->uv_crop_height,
779                     new_fb->buf.uv_crop_width, new_fb->buf.uv_crop_height);
780           }
781 #if CONFIG_AV1_HIGHBITDEPTH
782           if (use_optimized_scaler && has_optimized_scaler &&
783               cm->seq_params->bit_depth == AOM_BITS_8) {
784             av1_resize_and_extend_frame(ref, &new_fb->buf, filter, phase,
785                                         num_planes);
786           } else if (!av1_resize_and_extend_frame_nonnormative(
787                          ref, &new_fb->buf, (int)cm->seq_params->bit_depth,
788                          num_planes)) {
789             aom_internal_error(cm->error, AOM_CODEC_MEM_ERROR,
790                                "Failed to allocate buffer during resize");
791           }
792 #else
793           if (use_optimized_scaler && has_optimized_scaler) {
794             av1_resize_and_extend_frame(ref, &new_fb->buf, filter, phase,
795                                         num_planes);
796           } else if (!av1_resize_and_extend_frame_nonnormative(
797                          ref, &new_fb->buf, (int)cm->seq_params->bit_depth,
798                          num_planes)) {
799             aom_internal_error(cm->error, AOM_CODEC_MEM_ERROR,
800                                "Failed to allocate buffer during resize");
801           }
802 #endif
803           cpi->scaled_ref_buf[ref_frame - 1] = new_fb;
804           alloc_frame_mvs(cm, new_fb);
805         }
806       } else {
807         RefCntBuffer *buf = get_ref_frame_buf(cm, ref_frame);
808         buf->buf.y_crop_width = ref->y_crop_width;
809         buf->buf.y_crop_height = ref->y_crop_height;
810         cpi->scaled_ref_buf[ref_frame - 1] = buf;
811         ++buf->ref_count;
812       }
813     } else {
814       if (!has_no_stats_stage(cpi)) cpi->scaled_ref_buf[ref_frame - 1] = NULL;
815     }
816   }
817 }
818 
av1_select_sb_size(const AV1EncoderConfig * const oxcf,int width,int height,int number_spatial_layers)819 BLOCK_SIZE av1_select_sb_size(const AV1EncoderConfig *const oxcf, int width,
820                               int height, int number_spatial_layers) {
821   if (oxcf->tool_cfg.superblock_size == AOM_SUPERBLOCK_SIZE_64X64) {
822     return BLOCK_64X64;
823   }
824   if (oxcf->tool_cfg.superblock_size == AOM_SUPERBLOCK_SIZE_128X128) {
825     return BLOCK_128X128;
826   }
827 #if CONFIG_TFLITE
828   if (oxcf->q_cfg.deltaq_mode == DELTA_Q_USER_RATING_BASED) return BLOCK_64X64;
829 #endif
830   // Force 64x64 superblock size to increase resolution in perceptual
831   // AQ mode.
832   if (oxcf->mode == ALLINTRA &&
833       (oxcf->q_cfg.deltaq_mode == DELTA_Q_PERCEPTUAL_AI ||
834        oxcf->q_cfg.deltaq_mode == DELTA_Q_USER_RATING_BASED)) {
835     return BLOCK_64X64;
836   }
837   assert(oxcf->tool_cfg.superblock_size == AOM_SUPERBLOCK_SIZE_DYNAMIC);
838 
839   if (number_spatial_layers > 1 ||
840       oxcf->resize_cfg.resize_mode != RESIZE_NONE) {
841     // Use the configured size (top resolution) for spatial layers or
842     // on resize.
843     return AOMMIN(oxcf->frm_dim_cfg.width, oxcf->frm_dim_cfg.height) > 720
844                ? BLOCK_128X128
845                : BLOCK_64X64;
846   } else if (oxcf->mode == REALTIME) {
847     if (oxcf->tune_cfg.content == AOM_CONTENT_SCREEN) {
848       const TileConfig *const tile_cfg = &oxcf->tile_cfg;
849       const int num_tiles =
850           (1 << tile_cfg->tile_columns) * (1 << tile_cfg->tile_rows);
851       // For multi-thread encode: if the number of (128x128) superblocks
852       // per tile is low use 64X64 superblock.
853       if (oxcf->row_mt == 1 && oxcf->max_threads >= 4 &&
854           oxcf->max_threads >= num_tiles && AOMMIN(width, height) >= 720 &&
855           (width * height) / (128 * 128 * num_tiles) < 40)
856         return BLOCK_64X64;
857       else
858         return AOMMIN(width, height) >= 720 ? BLOCK_128X128 : BLOCK_64X64;
859     } else {
860       return AOMMIN(width, height) > 720 ? BLOCK_128X128 : BLOCK_64X64;
861     }
862   }
863 
864   // TODO(any): Possibly could improve this with a heuristic.
865   // When superres / resize is on, 'cm->width / height' can change between
866   // calls, so we don't apply this heuristic there.
867   // Things break if superblock size changes between the first pass and second
868   // pass encoding, which is why this heuristic is not configured as a
869   // speed-feature.
870   if (oxcf->superres_cfg.superres_mode == AOM_SUPERRES_NONE &&
871       oxcf->resize_cfg.resize_mode == RESIZE_NONE) {
872     int is_480p_or_lesser = AOMMIN(width, height) <= 480;
873     if (oxcf->speed >= 1 && is_480p_or_lesser) return BLOCK_64X64;
874 
875     // For 1080p and lower resolutions, choose SB size adaptively based on
876     // resolution and speed level for multi-thread encode.
877     int is_1080p_or_lesser = AOMMIN(width, height) <= 1080;
878     if (!is_480p_or_lesser && is_1080p_or_lesser && oxcf->mode == GOOD &&
879         oxcf->row_mt == 1 && oxcf->max_threads > 1 && oxcf->speed >= 5)
880       return BLOCK_64X64;
881 
882     // For allintra encode, since the maximum partition size is set to 32X32 for
883     // speed>=6, superblock size is set to 64X64 instead of 128X128. This
884     // improves the multithread performance due to reduction in top right delay
885     // and thread sync wastage. Currently, this setting is selectively enabled
886     // only for speed>=9 and resolutions less than 4k since cost update
887     // frequency is set to INTERNAL_COST_UPD_OFF in these cases.
888     const int is_4k_or_larger = AOMMIN(width, height) >= 2160;
889     if (oxcf->mode == ALLINTRA && oxcf->speed >= 9 && !is_4k_or_larger)
890       return BLOCK_64X64;
891   }
892   return BLOCK_128X128;
893 }
894 
av1_setup_frame(AV1_COMP * cpi)895 void av1_setup_frame(AV1_COMP *cpi) {
896   AV1_COMMON *const cm = &cpi->common;
897   // Set up entropy context depending on frame type. The decoder mandates
898   // the use of the default context, index 0, for keyframes and inter
899   // frames where the error_resilient_mode or intra_only flag is set. For
900   // other inter-frames the encoder currently uses only two contexts;
901   // context 1 for ALTREF frames and context 0 for the others.
902 
903   if (frame_is_intra_only(cm) || cm->features.error_resilient_mode ||
904       cpi->ext_flags.use_primary_ref_none) {
905     av1_setup_past_independence(cm);
906   }
907 
908   if ((cm->current_frame.frame_type == KEY_FRAME && cm->show_frame) ||
909       frame_is_sframe(cm)) {
910     if (!cpi->ppi->seq_params_locked) {
911       set_sb_size(cm->seq_params,
912                   av1_select_sb_size(&cpi->oxcf, cm->width, cm->height,
913                                      cpi->ppi->number_spatial_layers));
914     }
915   } else {
916     const RefCntBuffer *const primary_ref_buf = get_primary_ref_frame_buf(cm);
917     if (primary_ref_buf == NULL) {
918       av1_setup_past_independence(cm);
919       cm->seg.update_map = 1;
920       cm->seg.update_data = 1;
921     } else {
922       *cm->fc = primary_ref_buf->frame_context;
923     }
924   }
925 
926   av1_zero(cm->cur_frame->interp_filter_selected);
927   cm->prev_frame = get_primary_ref_frame_buf(cm);
928   cpi->vaq_refresh = 0;
929 }
930 
931 #if !CONFIG_REALTIME_ONLY
get_interp_filter_selected(const AV1_COMMON * const cm,MV_REFERENCE_FRAME ref,InterpFilter ifilter)932 static int get_interp_filter_selected(const AV1_COMMON *const cm,
933                                       MV_REFERENCE_FRAME ref,
934                                       InterpFilter ifilter) {
935   const RefCntBuffer *const buf = get_ref_frame_buf(cm, ref);
936   if (buf == NULL) return 0;
937   return buf->interp_filter_selected[ifilter];
938 }
939 
av1_setup_interp_filter_search_mask(AV1_COMP * cpi)940 uint16_t av1_setup_interp_filter_search_mask(AV1_COMP *cpi) {
941   const AV1_COMMON *const cm = &cpi->common;
942   int ref_total[REF_FRAMES] = { 0 };
943   uint16_t mask = ALLOW_ALL_INTERP_FILT_MASK;
944 
945   if (cpi->last_frame_type == KEY_FRAME || cpi->refresh_frame.alt_ref_frame)
946     return mask;
947 
948   for (MV_REFERENCE_FRAME ref = LAST_FRAME; ref <= ALTREF_FRAME; ++ref) {
949     for (InterpFilter ifilter = EIGHTTAP_REGULAR; ifilter <= MULTITAP_SHARP;
950          ++ifilter) {
951       ref_total[ref] += get_interp_filter_selected(cm, ref, ifilter);
952     }
953   }
954   int ref_total_total = (ref_total[LAST2_FRAME] + ref_total[LAST3_FRAME] +
955                          ref_total[GOLDEN_FRAME] + ref_total[BWDREF_FRAME] +
956                          ref_total[ALTREF2_FRAME] + ref_total[ALTREF_FRAME]);
957 
958   for (InterpFilter ifilter = EIGHTTAP_REGULAR; ifilter <= MULTITAP_SHARP;
959        ++ifilter) {
960     int last_score = get_interp_filter_selected(cm, LAST_FRAME, ifilter) * 30;
961     if (ref_total[LAST_FRAME] && last_score <= ref_total[LAST_FRAME]) {
962       int filter_score =
963           get_interp_filter_selected(cm, LAST2_FRAME, ifilter) * 20 +
964           get_interp_filter_selected(cm, LAST3_FRAME, ifilter) * 20 +
965           get_interp_filter_selected(cm, GOLDEN_FRAME, ifilter) * 20 +
966           get_interp_filter_selected(cm, BWDREF_FRAME, ifilter) * 10 +
967           get_interp_filter_selected(cm, ALTREF2_FRAME, ifilter) * 10 +
968           get_interp_filter_selected(cm, ALTREF_FRAME, ifilter) * 10;
969       if (filter_score < ref_total_total) {
970         DUAL_FILTER_TYPE filt_type = ifilter + SWITCHABLE_FILTERS * ifilter;
971         reset_interp_filter_allowed_mask(&mask, filt_type);
972       }
973     }
974   }
975   return mask;
976 }
977 
978 #define STRICT_PSNR_DIFF_THRESH 0.9
979 // Encode key frame with/without screen content tools to determine whether
980 // screen content tools should be enabled for this key frame group or not.
981 // The first encoding is without screen content tools.
982 // The second encoding is with screen content tools.
983 // We compare the psnr and frame size to make the decision.
screen_content_tools_determination(AV1_COMP * cpi,const int allow_screen_content_tools_orig_decision,const int allow_intrabc_orig_decision,const int use_screen_content_tools_orig_decision,const int is_screen_content_type_orig_decision,const int pass,int * projected_size_pass,PSNR_STATS * psnr)984 static void screen_content_tools_determination(
985     AV1_COMP *cpi, const int allow_screen_content_tools_orig_decision,
986     const int allow_intrabc_orig_decision,
987     const int use_screen_content_tools_orig_decision,
988     const int is_screen_content_type_orig_decision, const int pass,
989     int *projected_size_pass, PSNR_STATS *psnr) {
990   AV1_COMMON *const cm = &cpi->common;
991   FeatureFlags *const features = &cm->features;
992 
993 #if CONFIG_FPMT_TEST
994   projected_size_pass[pass] =
995       ((cpi->ppi->gf_group.frame_parallel_level[cpi->gf_frame_index] > 0) &&
996        (cpi->ppi->fpmt_unit_test_cfg == PARALLEL_SIMULATION_ENCODE))
997           ? cpi->ppi->p_rc.temp_projected_frame_size
998           : cpi->rc.projected_frame_size;
999 #else
1000   projected_size_pass[pass] = cpi->rc.projected_frame_size;
1001 #endif
1002 
1003 #if CONFIG_AV1_HIGHBITDEPTH
1004   const uint32_t in_bit_depth = cpi->oxcf.input_cfg.input_bit_depth;
1005   const uint32_t bit_depth = cpi->td.mb.e_mbd.bd;
1006   aom_calc_highbd_psnr(cpi->source, &cpi->common.cur_frame->buf, &psnr[pass],
1007                        bit_depth, in_bit_depth);
1008 #else
1009   aom_calc_psnr(cpi->source, &cpi->common.cur_frame->buf, &psnr[pass]);
1010 #endif
1011   if (pass != 1) return;
1012 
1013   const double psnr_diff = psnr[1].psnr[0] - psnr[0].psnr[0];
1014   // Calculate % of palette mode to be chosen in a frame from mode decision.
1015   const double palette_ratio =
1016       (double)cpi->palette_pixel_num / (double)(cm->height * cm->width);
1017   const int psnr_diff_is_large = (psnr_diff > STRICT_PSNR_DIFF_THRESH);
1018   const int ratio_is_large =
1019       ((palette_ratio >= 0.0001) && ((psnr_diff / palette_ratio) > 4));
1020   const int is_sc_encoding_much_better = (psnr_diff_is_large || ratio_is_large);
1021   if (is_sc_encoding_much_better) {
1022     // Use screen content tools, if we get coding gain.
1023     features->allow_screen_content_tools = 1;
1024     features->allow_intrabc = cpi->intrabc_used;
1025     cpi->use_screen_content_tools = 1;
1026     cpi->is_screen_content_type = 1;
1027   } else {
1028     // Use original screen content decision.
1029     features->allow_screen_content_tools =
1030         allow_screen_content_tools_orig_decision;
1031     features->allow_intrabc = allow_intrabc_orig_decision;
1032     cpi->use_screen_content_tools = use_screen_content_tools_orig_decision;
1033     cpi->is_screen_content_type = is_screen_content_type_orig_decision;
1034   }
1035 }
1036 
1037 // Set some encoding parameters to make the encoding process fast.
1038 // A fixed block partition size, and a large q is used.
set_encoding_params_for_screen_content(AV1_COMP * cpi,const int pass)1039 static void set_encoding_params_for_screen_content(AV1_COMP *cpi,
1040                                                    const int pass) {
1041   AV1_COMMON *const cm = &cpi->common;
1042   if (pass == 0) {
1043     // In the first pass, encode without screen content tools.
1044     // Use a high q, and a fixed block size for fast encoding.
1045     cm->features.allow_screen_content_tools = 0;
1046     cm->features.allow_intrabc = 0;
1047     cpi->use_screen_content_tools = 0;
1048     cpi->sf.part_sf.partition_search_type = FIXED_PARTITION;
1049     cpi->sf.part_sf.fixed_partition_size = BLOCK_32X32;
1050     return;
1051   }
1052   assert(pass == 1);
1053   // In the second pass, encode with screen content tools.
1054   // Use a high q, and a fixed block size for fast encoding.
1055   cm->features.allow_screen_content_tools = 1;
1056   // TODO(chengchen): turn intrabc on could lead to data race issue.
1057   // cm->allow_intrabc = 1;
1058   cpi->use_screen_content_tools = 1;
1059   cpi->sf.part_sf.partition_search_type = FIXED_PARTITION;
1060   cpi->sf.part_sf.fixed_partition_size = BLOCK_32X32;
1061 }
1062 
1063 // Determines whether to use screen content tools for the key frame group.
1064 // This function modifies "cm->features.allow_screen_content_tools",
1065 // "cm->features.allow_intrabc" and "cpi->use_screen_content_tools".
av1_determine_sc_tools_with_encoding(AV1_COMP * cpi,const int q_orig)1066 void av1_determine_sc_tools_with_encoding(AV1_COMP *cpi, const int q_orig) {
1067   AV1_COMMON *const cm = &cpi->common;
1068   const AV1EncoderConfig *const oxcf = &cpi->oxcf;
1069   const QuantizationCfg *const q_cfg = &oxcf->q_cfg;
1070   // Variables to help determine if we should allow screen content tools.
1071   int projected_size_pass[3] = { 0 };
1072   PSNR_STATS psnr[3];
1073   const int is_key_frame = cm->current_frame.frame_type == KEY_FRAME;
1074   const int allow_screen_content_tools_orig_decision =
1075       cm->features.allow_screen_content_tools;
1076   const int allow_intrabc_orig_decision = cm->features.allow_intrabc;
1077   const int use_screen_content_tools_orig_decision =
1078       cpi->use_screen_content_tools;
1079   const int is_screen_content_type_orig_decision = cpi->is_screen_content_type;
1080   // Turn off the encoding trial for forward key frame and superres.
1081   if (cpi->sf.rt_sf.use_nonrd_pick_mode || oxcf->kf_cfg.fwd_kf_enabled ||
1082       cpi->superres_mode != AOM_SUPERRES_NONE || oxcf->mode == REALTIME ||
1083       use_screen_content_tools_orig_decision || !is_key_frame) {
1084     return;
1085   }
1086 
1087   // TODO(chengchen): multiple encoding for the lossless mode is time consuming.
1088   // Find a better way to determine whether screen content tools should be used
1089   // for lossless coding.
1090   // Use a high q and a fixed partition to do quick encoding.
1091   const int q_for_screen_content_quick_run =
1092       is_lossless_requested(&oxcf->rc_cfg) ? q_orig : AOMMAX(q_orig, 244);
1093   const int partition_search_type_orig = cpi->sf.part_sf.partition_search_type;
1094   const BLOCK_SIZE fixed_partition_block_size_orig =
1095       cpi->sf.part_sf.fixed_partition_size;
1096 
1097   // Setup necessary params for encoding, including frame source, etc.
1098 
1099   cpi->source = av1_realloc_and_scale_if_required(
1100       cm, cpi->unscaled_source, &cpi->scaled_source, cm->features.interp_filter,
1101       0, false, false, cpi->oxcf.border_in_pixels, cpi->alloc_pyramid);
1102   if (cpi->unscaled_last_source != NULL) {
1103     cpi->last_source = av1_realloc_and_scale_if_required(
1104         cm, cpi->unscaled_last_source, &cpi->scaled_last_source,
1105         cm->features.interp_filter, 0, false, false, cpi->oxcf.border_in_pixels,
1106         cpi->alloc_pyramid);
1107   }
1108 
1109   av1_setup_frame(cpi);
1110 
1111   if (cm->seg.enabled) {
1112     if (!cm->seg.update_data && cm->prev_frame) {
1113       segfeatures_copy(&cm->seg, &cm->prev_frame->seg);
1114       cm->seg.enabled = cm->prev_frame->seg.enabled;
1115     } else {
1116       av1_calculate_segdata(&cm->seg);
1117     }
1118   } else {
1119     memset(&cm->seg, 0, sizeof(cm->seg));
1120   }
1121   segfeatures_copy(&cm->cur_frame->seg, &cm->seg);
1122   cm->cur_frame->seg.enabled = cm->seg.enabled;
1123 
1124   // The two encoding passes aim to help determine whether to use screen
1125   // content tools, with a high q and fixed partition.
1126   for (int pass = 0; pass < 2; ++pass) {
1127     set_encoding_params_for_screen_content(cpi, pass);
1128     av1_set_quantizer(cm, q_cfg->qm_minlevel, q_cfg->qm_maxlevel,
1129                       q_for_screen_content_quick_run,
1130                       q_cfg->enable_chroma_deltaq, q_cfg->enable_hdr_deltaq);
1131     av1_set_speed_features_qindex_dependent(cpi, oxcf->speed);
1132     av1_init_quantizer(&cpi->enc_quant_dequant_params, &cm->quant_params,
1133                        cm->seq_params->bit_depth);
1134 
1135     av1_set_variance_partition_thresholds(cpi, q_for_screen_content_quick_run,
1136                                           0);
1137     // transform / motion compensation build reconstruction frame
1138     av1_encode_frame(cpi);
1139     // Screen content decision
1140     screen_content_tools_determination(
1141         cpi, allow_screen_content_tools_orig_decision,
1142         allow_intrabc_orig_decision, use_screen_content_tools_orig_decision,
1143         is_screen_content_type_orig_decision, pass, projected_size_pass, psnr);
1144   }
1145 
1146   // Set partition speed feature back.
1147   cpi->sf.part_sf.partition_search_type = partition_search_type_orig;
1148   cpi->sf.part_sf.fixed_partition_size = fixed_partition_block_size_orig;
1149 
1150   // Free token related info if screen content coding tools are not enabled.
1151   if (!cm->features.allow_screen_content_tools)
1152     free_token_info(&cpi->token_info);
1153 }
1154 #endif  // CONFIG_REALTIME_ONLY
1155 
fix_interp_filter(InterpFilter * const interp_filter,const FRAME_COUNTS * const counts)1156 static void fix_interp_filter(InterpFilter *const interp_filter,
1157                               const FRAME_COUNTS *const counts) {
1158   if (*interp_filter == SWITCHABLE) {
1159     // Check to see if only one of the filters is actually used
1160     int count[SWITCHABLE_FILTERS] = { 0 };
1161     int num_filters_used = 0;
1162     for (int i = 0; i < SWITCHABLE_FILTERS; ++i) {
1163       for (int j = 0; j < SWITCHABLE_FILTER_CONTEXTS; ++j)
1164         count[i] += counts->switchable_interp[j][i];
1165       num_filters_used += (count[i] > 0);
1166     }
1167     if (num_filters_used == 1) {
1168       // Only one filter is used. So set the filter at frame level
1169       for (int i = 0; i < SWITCHABLE_FILTERS; ++i) {
1170         if (count[i]) {
1171           *interp_filter = i;
1172           break;
1173         }
1174       }
1175     }
1176   }
1177 }
1178 
av1_finalize_encoded_frame(AV1_COMP * const cpi)1179 void av1_finalize_encoded_frame(AV1_COMP *const cpi) {
1180   AV1_COMMON *const cm = &cpi->common;
1181   CurrentFrame *const current_frame = &cm->current_frame;
1182 
1183   if (!cm->seq_params->reduced_still_picture_hdr &&
1184       encode_show_existing_frame(cm)) {
1185     RefCntBuffer *const frame_to_show =
1186         cm->ref_frame_map[cpi->existing_fb_idx_to_show];
1187 
1188     if (frame_to_show == NULL) {
1189       aom_internal_error(cm->error, AOM_CODEC_UNSUP_BITSTREAM,
1190                          "Buffer does not contain a reconstructed frame");
1191     }
1192     assert(frame_to_show->ref_count > 0);
1193     assign_frame_buffer_p(&cm->cur_frame, frame_to_show);
1194   }
1195 
1196   if (!encode_show_existing_frame(cm) &&
1197       cm->seq_params->film_grain_params_present &&
1198       (cm->show_frame || cm->showable_frame)) {
1199     // Copy the current frame's film grain params to the its corresponding
1200     // RefCntBuffer slot.
1201     cm->cur_frame->film_grain_params = cm->film_grain_params;
1202 
1203     // We must update the parameters if this is not an INTER_FRAME
1204     if (current_frame->frame_type != INTER_FRAME)
1205       cm->cur_frame->film_grain_params.update_parameters = 1;
1206 
1207     // Iterate the random seed for the next frame.
1208     cm->film_grain_params.random_seed += 3381;
1209     if (cm->film_grain_params.random_seed == 0)
1210       cm->film_grain_params.random_seed = 7391;
1211   }
1212 
1213   // Initialise all tiles' contexts from the global frame context
1214   for (int tile_col = 0; tile_col < cm->tiles.cols; tile_col++) {
1215     for (int tile_row = 0; tile_row < cm->tiles.rows; tile_row++) {
1216       const int tile_idx = tile_row * cm->tiles.cols + tile_col;
1217       cpi->tile_data[tile_idx].tctx = *cm->fc;
1218     }
1219   }
1220 
1221   if (!frame_is_intra_only(cm))
1222     fix_interp_filter(&cm->features.interp_filter, cpi->td.counts);
1223 }
1224 
av1_is_integer_mv(const YV12_BUFFER_CONFIG * cur_picture,const YV12_BUFFER_CONFIG * last_picture,ForceIntegerMVInfo * const force_intpel_info)1225 int av1_is_integer_mv(const YV12_BUFFER_CONFIG *cur_picture,
1226                       const YV12_BUFFER_CONFIG *last_picture,
1227                       ForceIntegerMVInfo *const force_intpel_info) {
1228   // check use hash ME
1229   int k;
1230 
1231   const int block_size = FORCE_INT_MV_DECISION_BLOCK_SIZE;
1232   const double threshold_current = 0.8;
1233   const double threshold_average = 0.95;
1234   const int max_history_size = 32;
1235   int T = 0;  // total block
1236   int C = 0;  // match with collocated block
1237   int S = 0;  // smooth region but not match with collocated block
1238 
1239   const int pic_width = cur_picture->y_width;
1240   const int pic_height = cur_picture->y_height;
1241   for (int i = 0; i + block_size <= pic_height; i += block_size) {
1242     for (int j = 0; j + block_size <= pic_width; j += block_size) {
1243       const int x_pos = j;
1244       const int y_pos = i;
1245       int match = 1;
1246       T++;
1247 
1248       // check whether collocated block match with current
1249       uint8_t *p_cur = cur_picture->y_buffer;
1250       uint8_t *p_ref = last_picture->y_buffer;
1251       int stride_cur = cur_picture->y_stride;
1252       int stride_ref = last_picture->y_stride;
1253       p_cur += (y_pos * stride_cur + x_pos);
1254       p_ref += (y_pos * stride_ref + x_pos);
1255 
1256       if (cur_picture->flags & YV12_FLAG_HIGHBITDEPTH) {
1257         uint16_t *p16_cur = CONVERT_TO_SHORTPTR(p_cur);
1258         uint16_t *p16_ref = CONVERT_TO_SHORTPTR(p_ref);
1259         for (int tmpY = 0; tmpY < block_size && match; tmpY++) {
1260           for (int tmpX = 0; tmpX < block_size && match; tmpX++) {
1261             if (p16_cur[tmpX] != p16_ref[tmpX]) {
1262               match = 0;
1263             }
1264           }
1265           p16_cur += stride_cur;
1266           p16_ref += stride_ref;
1267         }
1268       } else {
1269         for (int tmpY = 0; tmpY < block_size && match; tmpY++) {
1270           for (int tmpX = 0; tmpX < block_size && match; tmpX++) {
1271             if (p_cur[tmpX] != p_ref[tmpX]) {
1272               match = 0;
1273             }
1274           }
1275           p_cur += stride_cur;
1276           p_ref += stride_ref;
1277         }
1278       }
1279 
1280       if (match) {
1281         C++;
1282         continue;
1283       }
1284 
1285       if (av1_hash_is_horizontal_perfect(cur_picture, block_size, x_pos,
1286                                          y_pos) ||
1287           av1_hash_is_vertical_perfect(cur_picture, block_size, x_pos, y_pos)) {
1288         S++;
1289         continue;
1290       }
1291     }
1292   }
1293 
1294   assert(T > 0);
1295   double cs_rate = ((double)(C + S)) / ((double)(T));
1296 
1297   force_intpel_info->cs_rate_array[force_intpel_info->rate_index] = cs_rate;
1298 
1299   force_intpel_info->rate_index =
1300       (force_intpel_info->rate_index + 1) % max_history_size;
1301   force_intpel_info->rate_size++;
1302   force_intpel_info->rate_size =
1303       AOMMIN(force_intpel_info->rate_size, max_history_size);
1304 
1305   if (cs_rate < threshold_current) {
1306     return 0;
1307   }
1308 
1309   if (C == T) {
1310     return 1;
1311   }
1312 
1313   double cs_average = 0.0;
1314 
1315   for (k = 0; k < force_intpel_info->rate_size; k++) {
1316     cs_average += force_intpel_info->cs_rate_array[k];
1317   }
1318   cs_average /= force_intpel_info->rate_size;
1319 
1320   if (cs_average < threshold_average) {
1321     return 0;
1322   }
1323 
1324   if ((T - C - S) < 0) {
1325     return 1;
1326   }
1327 
1328   if (cs_average > 1.01) {
1329     return 1;
1330   }
1331 
1332   return 0;
1333 }
1334 
av1_set_mb_ssim_rdmult_scaling(AV1_COMP * cpi)1335 void av1_set_mb_ssim_rdmult_scaling(AV1_COMP *cpi) {
1336   const CommonModeInfoParams *const mi_params = &cpi->common.mi_params;
1337   const MACROBLOCKD *const xd = &cpi->td.mb.e_mbd;
1338   uint8_t *y_buffer = cpi->source->y_buffer;
1339   const int y_stride = cpi->source->y_stride;
1340   const int block_size = BLOCK_16X16;
1341 
1342   const int num_mi_w = mi_size_wide[block_size];
1343   const int num_mi_h = mi_size_high[block_size];
1344   const int num_cols = (mi_params->mi_cols + num_mi_w - 1) / num_mi_w;
1345   const int num_rows = (mi_params->mi_rows + num_mi_h - 1) / num_mi_h;
1346   double log_sum = 0.0;
1347 
1348   // Loop through each 16x16 block.
1349   for (int row = 0; row < num_rows; ++row) {
1350     for (int col = 0; col < num_cols; ++col) {
1351       double var = 0.0, num_of_var = 0.0;
1352       const int index = row * num_cols + col;
1353 
1354       // Loop through each 8x8 block.
1355       for (int mi_row = row * num_mi_h;
1356            mi_row < mi_params->mi_rows && mi_row < (row + 1) * num_mi_h;
1357            mi_row += 2) {
1358         for (int mi_col = col * num_mi_w;
1359              mi_col < mi_params->mi_cols && mi_col < (col + 1) * num_mi_w;
1360              mi_col += 2) {
1361           struct buf_2d buf;
1362           const int row_offset_y = mi_row << 2;
1363           const int col_offset_y = mi_col << 2;
1364 
1365           buf.buf = y_buffer + row_offset_y * y_stride + col_offset_y;
1366           buf.stride = y_stride;
1367 
1368           var += av1_get_perpixel_variance_facade(cpi, xd, &buf, BLOCK_8X8,
1369                                                   AOM_PLANE_Y);
1370           num_of_var += 1.0;
1371         }
1372       }
1373       var = var / num_of_var;
1374 
1375       // Curve fitting with an exponential model on all 16x16 blocks from the
1376       // midres dataset.
1377       var = 67.035434 * (1 - exp(-0.0021489 * var)) + 17.492222;
1378 
1379       // As per the above computation, var will be in the range of
1380       // [17.492222, 84.527656], assuming the data type is of infinite
1381       // precision. The following assert conservatively checks if var is in the
1382       // range of [17.0, 85.0] to avoid any issues due to the precision of the
1383       // relevant data type.
1384       assert(var > 17.0 && var < 85.0);
1385       cpi->ssim_rdmult_scaling_factors[index] = var;
1386       log_sum += log(var);
1387     }
1388   }
1389 
1390   // As log_sum holds the geometric mean, it will be in the range
1391   // [17.492222, 84.527656]. Hence, in the below loop, the value of
1392   // cpi->ssim_rdmult_scaling_factors[index] would be in the range
1393   // [0.2069, 4.8323].
1394   log_sum = exp(log_sum / (double)(num_rows * num_cols));
1395 
1396   for (int row = 0; row < num_rows; ++row) {
1397     for (int col = 0; col < num_cols; ++col) {
1398       const int index = row * num_cols + col;
1399       cpi->ssim_rdmult_scaling_factors[index] /= log_sum;
1400     }
1401   }
1402 }
1403 
1404 // Coding context that only needs to be saved when recode loop includes
1405 // filtering (deblocking, CDEF, superres post-encode upscale and/or loop
1406 // restoraton).
save_extra_coding_context(AV1_COMP * cpi)1407 static void save_extra_coding_context(AV1_COMP *cpi) {
1408   CODING_CONTEXT *const cc = &cpi->coding_context;
1409   AV1_COMMON *cm = &cpi->common;
1410 
1411   cc->lf = cm->lf;
1412   cc->cdef_info = cm->cdef_info;
1413   cc->rc = cpi->rc;
1414   cc->mv_stats = cpi->ppi->mv_stats;
1415 }
1416 
av1_save_all_coding_context(AV1_COMP * cpi)1417 void av1_save_all_coding_context(AV1_COMP *cpi) {
1418   save_extra_coding_context(cpi);
1419   if (!frame_is_intra_only(&cpi->common)) release_scaled_references(cpi);
1420 }
1421 
1422 #if DUMP_RECON_FRAMES == 1
1423 
1424 // NOTE(zoeliu): For debug - Output the filtered reconstructed video.
av1_dump_filtered_recon_frames(AV1_COMP * cpi)1425 void av1_dump_filtered_recon_frames(AV1_COMP *cpi) {
1426   AV1_COMMON *const cm = &cpi->common;
1427   const CurrentFrame *const current_frame = &cm->current_frame;
1428   const YV12_BUFFER_CONFIG *recon_buf = &cm->cur_frame->buf;
1429 
1430   if (recon_buf == NULL) {
1431     printf("Frame %d is not ready.\n", current_frame->frame_number);
1432     return;
1433   }
1434 
1435   static const int flag_list[REF_FRAMES] = { 0,
1436                                              AOM_LAST_FLAG,
1437                                              AOM_LAST2_FLAG,
1438                                              AOM_LAST3_FLAG,
1439                                              AOM_GOLD_FLAG,
1440                                              AOM_BWD_FLAG,
1441                                              AOM_ALT2_FLAG,
1442                                              AOM_ALT_FLAG };
1443   printf(
1444       "\n***Frame=%d (frame_offset=%d, show_frame=%d, "
1445       "show_existing_frame=%d) "
1446       "[LAST LAST2 LAST3 GOLDEN BWD ALT2 ALT]=[",
1447       current_frame->frame_number, current_frame->order_hint, cm->show_frame,
1448       cm->show_existing_frame);
1449   for (int ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ++ref_frame) {
1450     const RefCntBuffer *const buf = get_ref_frame_buf(cm, ref_frame);
1451     const int ref_offset = buf != NULL ? (int)buf->order_hint : -1;
1452     printf(" %d(%c)", ref_offset,
1453            (cpi->ref_frame_flags & flag_list[ref_frame]) ? 'Y' : 'N');
1454   }
1455   printf(" ]\n");
1456 
1457   if (!cm->show_frame) {
1458     printf("Frame %d is a no show frame, so no image dump.\n",
1459            current_frame->frame_number);
1460     return;
1461   }
1462 
1463   int h;
1464   char file_name[256] = "/tmp/enc_filtered_recon.yuv";
1465   FILE *f_recon = NULL;
1466 
1467   if (current_frame->frame_number == 0) {
1468     if ((f_recon = fopen(file_name, "wb")) == NULL) {
1469       printf("Unable to open file %s to write.\n", file_name);
1470       return;
1471     }
1472   } else {
1473     if ((f_recon = fopen(file_name, "ab")) == NULL) {
1474       printf("Unable to open file %s to append.\n", file_name);
1475       return;
1476     }
1477   }
1478   printf(
1479       "\nFrame=%5d, encode_update_type[%5d]=%1d, frame_offset=%d, "
1480       "show_frame=%d, show_existing_frame=%d, source_alt_ref_active=%d, "
1481       "refresh_alt_ref_frame=%d, "
1482       "y_stride=%4d, uv_stride=%4d, cm->width=%4d, cm->height=%4d\n\n",
1483       current_frame->frame_number, cpi->gf_frame_index,
1484       cpi->ppi->gf_group.update_type[cpi->gf_frame_index],
1485       current_frame->order_hint, cm->show_frame, cm->show_existing_frame,
1486       cpi->rc.source_alt_ref_active, cpi->refresh_frame.alt_ref_frame,
1487       recon_buf->y_stride, recon_buf->uv_stride, cm->width, cm->height);
1488 #if 0
1489   int ref_frame;
1490   printf("get_ref_frame_map_idx: [");
1491   for (ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ++ref_frame)
1492     printf(" %d", get_ref_frame_map_idx(cm, ref_frame));
1493   printf(" ]\n");
1494 #endif  // 0
1495 
1496   // --- Y ---
1497   for (h = 0; h < cm->height; ++h) {
1498     fwrite(&recon_buf->y_buffer[h * recon_buf->y_stride], 1, cm->width,
1499            f_recon);
1500   }
1501   // --- U ---
1502   for (h = 0; h < (cm->height >> 1); ++h) {
1503     fwrite(&recon_buf->u_buffer[h * recon_buf->uv_stride], 1, (cm->width >> 1),
1504            f_recon);
1505   }
1506   // --- V ---
1507   for (h = 0; h < (cm->height >> 1); ++h) {
1508     fwrite(&recon_buf->v_buffer[h * recon_buf->uv_stride], 1, (cm->width >> 1),
1509            f_recon);
1510   }
1511 
1512   fclose(f_recon);
1513 }
1514 #endif  // DUMP_RECON_FRAMES
1515