/src/libwebp/src/enc/tree_enc.c
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1 | | // Copyright 2011 Google Inc. All Rights Reserved. |
2 | | // |
3 | | // Use of this source code is governed by a BSD-style license |
4 | | // that can be found in the COPYING file in the root of the source |
5 | | // tree. An additional intellectual property rights grant can be found |
6 | | // in the file PATENTS. All contributing project authors may |
7 | | // be found in the AUTHORS file in the root of the source tree. |
8 | | // ----------------------------------------------------------------------------- |
9 | | // |
10 | | // Coding of token probabilities, intra modes and segments. |
11 | | // |
12 | | // Author: Skal (pascal.massimino@gmail.com) |
13 | | |
14 | | #include "src/enc/vp8i_enc.h" |
15 | | |
16 | | //------------------------------------------------------------------------------ |
17 | | // Default probabilities |
18 | | |
19 | | // Paragraph 13.5 |
20 | | const uint8_t |
21 | | VP8CoeffsProba0[NUM_TYPES][NUM_BANDS][NUM_CTX][NUM_PROBAS] = { |
22 | | { { { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }, |
23 | | { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }, |
24 | | { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 } |
25 | | }, |
26 | | { { 253, 136, 254, 255, 228, 219, 128, 128, 128, 128, 128 }, |
27 | | { 189, 129, 242, 255, 227, 213, 255, 219, 128, 128, 128 }, |
28 | | { 106, 126, 227, 252, 214, 209, 255, 255, 128, 128, 128 } |
29 | | }, |
30 | | { { 1, 98, 248, 255, 236, 226, 255, 255, 128, 128, 128 }, |
31 | | { 181, 133, 238, 254, 221, 234, 255, 154, 128, 128, 128 }, |
32 | | { 78, 134, 202, 247, 198, 180, 255, 219, 128, 128, 128 }, |
33 | | }, |
34 | | { { 1, 185, 249, 255, 243, 255, 128, 128, 128, 128, 128 }, |
35 | | { 184, 150, 247, 255, 236, 224, 128, 128, 128, 128, 128 }, |
36 | | { 77, 110, 216, 255, 236, 230, 128, 128, 128, 128, 128 }, |
37 | | }, |
38 | | { { 1, 101, 251, 255, 241, 255, 128, 128, 128, 128, 128 }, |
39 | | { 170, 139, 241, 252, 236, 209, 255, 255, 128, 128, 128 }, |
40 | | { 37, 116, 196, 243, 228, 255, 255, 255, 128, 128, 128 } |
41 | | }, |
42 | | { { 1, 204, 254, 255, 245, 255, 128, 128, 128, 128, 128 }, |
43 | | { 207, 160, 250, 255, 238, 128, 128, 128, 128, 128, 128 }, |
44 | | { 102, 103, 231, 255, 211, 171, 128, 128, 128, 128, 128 } |
45 | | }, |
46 | | { { 1, 152, 252, 255, 240, 255, 128, 128, 128, 128, 128 }, |
47 | | { 177, 135, 243, 255, 234, 225, 128, 128, 128, 128, 128 }, |
48 | | { 80, 129, 211, 255, 194, 224, 128, 128, 128, 128, 128 } |
49 | | }, |
50 | | { { 1, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, |
51 | | { 246, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, |
52 | | { 255, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 } |
53 | | } |
54 | | }, |
55 | | { { { 198, 35, 237, 223, 193, 187, 162, 160, 145, 155, 62 }, |
56 | | { 131, 45, 198, 221, 172, 176, 220, 157, 252, 221, 1 }, |
57 | | { 68, 47, 146, 208, 149, 167, 221, 162, 255, 223, 128 } |
58 | | }, |
59 | | { { 1, 149, 241, 255, 221, 224, 255, 255, 128, 128, 128 }, |
60 | | { 184, 141, 234, 253, 222, 220, 255, 199, 128, 128, 128 }, |
61 | | { 81, 99, 181, 242, 176, 190, 249, 202, 255, 255, 128 } |
62 | | }, |
63 | | { { 1, 129, 232, 253, 214, 197, 242, 196, 255, 255, 128 }, |
64 | | { 99, 121, 210, 250, 201, 198, 255, 202, 128, 128, 128 }, |
65 | | { 23, 91, 163, 242, 170, 187, 247, 210, 255, 255, 128 } |
66 | | }, |
67 | | { { 1, 200, 246, 255, 234, 255, 128, 128, 128, 128, 128 }, |
68 | | { 109, 178, 241, 255, 231, 245, 255, 255, 128, 128, 128 }, |
69 | | { 44, 130, 201, 253, 205, 192, 255, 255, 128, 128, 128 } |
70 | | }, |
71 | | { { 1, 132, 239, 251, 219, 209, 255, 165, 128, 128, 128 }, |
72 | | { 94, 136, 225, 251, 218, 190, 255, 255, 128, 128, 128 }, |
73 | | { 22, 100, 174, 245, 186, 161, 255, 199, 128, 128, 128 } |
74 | | }, |
75 | | { { 1, 182, 249, 255, 232, 235, 128, 128, 128, 128, 128 }, |
76 | | { 124, 143, 241, 255, 227, 234, 128, 128, 128, 128, 128 }, |
77 | | { 35, 77, 181, 251, 193, 211, 255, 205, 128, 128, 128 } |
78 | | }, |
79 | | { { 1, 157, 247, 255, 236, 231, 255, 255, 128, 128, 128 }, |
80 | | { 121, 141, 235, 255, 225, 227, 255, 255, 128, 128, 128 }, |
81 | | { 45, 99, 188, 251, 195, 217, 255, 224, 128, 128, 128 } |
82 | | }, |
83 | | { { 1, 1, 251, 255, 213, 255, 128, 128, 128, 128, 128 }, |
84 | | { 203, 1, 248, 255, 255, 128, 128, 128, 128, 128, 128 }, |
85 | | { 137, 1, 177, 255, 224, 255, 128, 128, 128, 128, 128 } |
86 | | } |
87 | | }, |
88 | | { { { 253, 9, 248, 251, 207, 208, 255, 192, 128, 128, 128 }, |
89 | | { 175, 13, 224, 243, 193, 185, 249, 198, 255, 255, 128 }, |
90 | | { 73, 17, 171, 221, 161, 179, 236, 167, 255, 234, 128 } |
91 | | }, |
92 | | { { 1, 95, 247, 253, 212, 183, 255, 255, 128, 128, 128 }, |
93 | | { 239, 90, 244, 250, 211, 209, 255, 255, 128, 128, 128 }, |
94 | | { 155, 77, 195, 248, 188, 195, 255, 255, 128, 128, 128 } |
95 | | }, |
96 | | { { 1, 24, 239, 251, 218, 219, 255, 205, 128, 128, 128 }, |
97 | | { 201, 51, 219, 255, 196, 186, 128, 128, 128, 128, 128 }, |
98 | | { 69, 46, 190, 239, 201, 218, 255, 228, 128, 128, 128 } |
99 | | }, |
100 | | { { 1, 191, 251, 255, 255, 128, 128, 128, 128, 128, 128 }, |
101 | | { 223, 165, 249, 255, 213, 255, 128, 128, 128, 128, 128 }, |
102 | | { 141, 124, 248, 255, 255, 128, 128, 128, 128, 128, 128 } |
103 | | }, |
104 | | { { 1, 16, 248, 255, 255, 128, 128, 128, 128, 128, 128 }, |
105 | | { 190, 36, 230, 255, 236, 255, 128, 128, 128, 128, 128 }, |
106 | | { 149, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 } |
107 | | }, |
108 | | { { 1, 226, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, |
109 | | { 247, 192, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, |
110 | | { 240, 128, 255, 128, 128, 128, 128, 128, 128, 128, 128 } |
111 | | }, |
112 | | { { 1, 134, 252, 255, 255, 128, 128, 128, 128, 128, 128 }, |
113 | | { 213, 62, 250, 255, 255, 128, 128, 128, 128, 128, 128 }, |
114 | | { 55, 93, 255, 128, 128, 128, 128, 128, 128, 128, 128 } |
115 | | }, |
116 | | { { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }, |
117 | | { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }, |
118 | | { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 } |
119 | | } |
120 | | }, |
121 | | { { { 202, 24, 213, 235, 186, 191, 220, 160, 240, 175, 255 }, |
122 | | { 126, 38, 182, 232, 169, 184, 228, 174, 255, 187, 128 }, |
123 | | { 61, 46, 138, 219, 151, 178, 240, 170, 255, 216, 128 } |
124 | | }, |
125 | | { { 1, 112, 230, 250, 199, 191, 247, 159, 255, 255, 128 }, |
126 | | { 166, 109, 228, 252, 211, 215, 255, 174, 128, 128, 128 }, |
127 | | { 39, 77, 162, 232, 172, 180, 245, 178, 255, 255, 128 } |
128 | | }, |
129 | | { { 1, 52, 220, 246, 198, 199, 249, 220, 255, 255, 128 }, |
130 | | { 124, 74, 191, 243, 183, 193, 250, 221, 255, 255, 128 }, |
131 | | { 24, 71, 130, 219, 154, 170, 243, 182, 255, 255, 128 } |
132 | | }, |
133 | | { { 1, 182, 225, 249, 219, 240, 255, 224, 128, 128, 128 }, |
134 | | { 149, 150, 226, 252, 216, 205, 255, 171, 128, 128, 128 }, |
135 | | { 28, 108, 170, 242, 183, 194, 254, 223, 255, 255, 128 } |
136 | | }, |
137 | | { { 1, 81, 230, 252, 204, 203, 255, 192, 128, 128, 128 }, |
138 | | { 123, 102, 209, 247, 188, 196, 255, 233, 128, 128, 128 }, |
139 | | { 20, 95, 153, 243, 164, 173, 255, 203, 128, 128, 128 } |
140 | | }, |
141 | | { { 1, 222, 248, 255, 216, 213, 128, 128, 128, 128, 128 }, |
142 | | { 168, 175, 246, 252, 235, 205, 255, 255, 128, 128, 128 }, |
143 | | { 47, 116, 215, 255, 211, 212, 255, 255, 128, 128, 128 } |
144 | | }, |
145 | | { { 1, 121, 236, 253, 212, 214, 255, 255, 128, 128, 128 }, |
146 | | { 141, 84, 213, 252, 201, 202, 255, 219, 128, 128, 128 }, |
147 | | { 42, 80, 160, 240, 162, 185, 255, 205, 128, 128, 128 } |
148 | | }, |
149 | | { { 1, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, |
150 | | { 244, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, |
151 | | { 238, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 } |
152 | | } |
153 | | } |
154 | | }; |
155 | | |
156 | 0 | void VP8DefaultProbas(VP8Encoder* const enc) { |
157 | 0 | VP8EncProba* const probas = &enc->proba_; |
158 | 0 | probas->use_skip_proba_ = 0; |
159 | 0 | memset(probas->segments_, 255u, sizeof(probas->segments_)); |
160 | 0 | memcpy(probas->coeffs_, VP8CoeffsProba0, sizeof(VP8CoeffsProba0)); |
161 | | // Note: we could hard-code the level_costs_ corresponding to VP8CoeffsProba0, |
162 | | // but that's ~11k of static data. Better call VP8CalculateLevelCosts() later. |
163 | 0 | probas->dirty_ = 1; |
164 | 0 | } |
165 | | |
166 | | // Paragraph 11.5. 900bytes. |
167 | | static const uint8_t kBModesProba[NUM_BMODES][NUM_BMODES][NUM_BMODES - 1] = { |
168 | | { { 231, 120, 48, 89, 115, 113, 120, 152, 112 }, |
169 | | { 152, 179, 64, 126, 170, 118, 46, 70, 95 }, |
170 | | { 175, 69, 143, 80, 85, 82, 72, 155, 103 }, |
171 | | { 56, 58, 10, 171, 218, 189, 17, 13, 152 }, |
172 | | { 114, 26, 17, 163, 44, 195, 21, 10, 173 }, |
173 | | { 121, 24, 80, 195, 26, 62, 44, 64, 85 }, |
174 | | { 144, 71, 10, 38, 171, 213, 144, 34, 26 }, |
175 | | { 170, 46, 55, 19, 136, 160, 33, 206, 71 }, |
176 | | { 63, 20, 8, 114, 114, 208, 12, 9, 226 }, |
177 | | { 81, 40, 11, 96, 182, 84, 29, 16, 36 } }, |
178 | | { { 134, 183, 89, 137, 98, 101, 106, 165, 148 }, |
179 | | { 72, 187, 100, 130, 157, 111, 32, 75, 80 }, |
180 | | { 66, 102, 167, 99, 74, 62, 40, 234, 128 }, |
181 | | { 41, 53, 9, 178, 241, 141, 26, 8, 107 }, |
182 | | { 74, 43, 26, 146, 73, 166, 49, 23, 157 }, |
183 | | { 65, 38, 105, 160, 51, 52, 31, 115, 128 }, |
184 | | { 104, 79, 12, 27, 217, 255, 87, 17, 7 }, |
185 | | { 87, 68, 71, 44, 114, 51, 15, 186, 23 }, |
186 | | { 47, 41, 14, 110, 182, 183, 21, 17, 194 }, |
187 | | { 66, 45, 25, 102, 197, 189, 23, 18, 22 } }, |
188 | | { { 88, 88, 147, 150, 42, 46, 45, 196, 205 }, |
189 | | { 43, 97, 183, 117, 85, 38, 35, 179, 61 }, |
190 | | { 39, 53, 200, 87, 26, 21, 43, 232, 171 }, |
191 | | { 56, 34, 51, 104, 114, 102, 29, 93, 77 }, |
192 | | { 39, 28, 85, 171, 58, 165, 90, 98, 64 }, |
193 | | { 34, 22, 116, 206, 23, 34, 43, 166, 73 }, |
194 | | { 107, 54, 32, 26, 51, 1, 81, 43, 31 }, |
195 | | { 68, 25, 106, 22, 64, 171, 36, 225, 114 }, |
196 | | { 34, 19, 21, 102, 132, 188, 16, 76, 124 }, |
197 | | { 62, 18, 78, 95, 85, 57, 50, 48, 51 } }, |
198 | | { { 193, 101, 35, 159, 215, 111, 89, 46, 111 }, |
199 | | { 60, 148, 31, 172, 219, 228, 21, 18, 111 }, |
200 | | { 112, 113, 77, 85, 179, 255, 38, 120, 114 }, |
201 | | { 40, 42, 1, 196, 245, 209, 10, 25, 109 }, |
202 | | { 88, 43, 29, 140, 166, 213, 37, 43, 154 }, |
203 | | { 61, 63, 30, 155, 67, 45, 68, 1, 209 }, |
204 | | { 100, 80, 8, 43, 154, 1, 51, 26, 71 }, |
205 | | { 142, 78, 78, 16, 255, 128, 34, 197, 171 }, |
206 | | { 41, 40, 5, 102, 211, 183, 4, 1, 221 }, |
207 | | { 51, 50, 17, 168, 209, 192, 23, 25, 82 } }, |
208 | | { { 138, 31, 36, 171, 27, 166, 38, 44, 229 }, |
209 | | { 67, 87, 58, 169, 82, 115, 26, 59, 179 }, |
210 | | { 63, 59, 90, 180, 59, 166, 93, 73, 154 }, |
211 | | { 40, 40, 21, 116, 143, 209, 34, 39, 175 }, |
212 | | { 47, 15, 16, 183, 34, 223, 49, 45, 183 }, |
213 | | { 46, 17, 33, 183, 6, 98, 15, 32, 183 }, |
214 | | { 57, 46, 22, 24, 128, 1, 54, 17, 37 }, |
215 | | { 65, 32, 73, 115, 28, 128, 23, 128, 205 }, |
216 | | { 40, 3, 9, 115, 51, 192, 18, 6, 223 }, |
217 | | { 87, 37, 9, 115, 59, 77, 64, 21, 47 } }, |
218 | | { { 104, 55, 44, 218, 9, 54, 53, 130, 226 }, |
219 | | { 64, 90, 70, 205, 40, 41, 23, 26, 57 }, |
220 | | { 54, 57, 112, 184, 5, 41, 38, 166, 213 }, |
221 | | { 30, 34, 26, 133, 152, 116, 10, 32, 134 }, |
222 | | { 39, 19, 53, 221, 26, 114, 32, 73, 255 }, |
223 | | { 31, 9, 65, 234, 2, 15, 1, 118, 73 }, |
224 | | { 75, 32, 12, 51, 192, 255, 160, 43, 51 }, |
225 | | { 88, 31, 35, 67, 102, 85, 55, 186, 85 }, |
226 | | { 56, 21, 23, 111, 59, 205, 45, 37, 192 }, |
227 | | { 55, 38, 70, 124, 73, 102, 1, 34, 98 } }, |
228 | | { { 125, 98, 42, 88, 104, 85, 117, 175, 82 }, |
229 | | { 95, 84, 53, 89, 128, 100, 113, 101, 45 }, |
230 | | { 75, 79, 123, 47, 51, 128, 81, 171, 1 }, |
231 | | { 57, 17, 5, 71, 102, 57, 53, 41, 49 }, |
232 | | { 38, 33, 13, 121, 57, 73, 26, 1, 85 }, |
233 | | { 41, 10, 67, 138, 77, 110, 90, 47, 114 }, |
234 | | { 115, 21, 2, 10, 102, 255, 166, 23, 6 }, |
235 | | { 101, 29, 16, 10, 85, 128, 101, 196, 26 }, |
236 | | { 57, 18, 10, 102, 102, 213, 34, 20, 43 }, |
237 | | { 117, 20, 15, 36, 163, 128, 68, 1, 26 } }, |
238 | | { { 102, 61, 71, 37, 34, 53, 31, 243, 192 }, |
239 | | { 69, 60, 71, 38, 73, 119, 28, 222, 37 }, |
240 | | { 68, 45, 128, 34, 1, 47, 11, 245, 171 }, |
241 | | { 62, 17, 19, 70, 146, 85, 55, 62, 70 }, |
242 | | { 37, 43, 37, 154, 100, 163, 85, 160, 1 }, |
243 | | { 63, 9, 92, 136, 28, 64, 32, 201, 85 }, |
244 | | { 75, 15, 9, 9, 64, 255, 184, 119, 16 }, |
245 | | { 86, 6, 28, 5, 64, 255, 25, 248, 1 }, |
246 | | { 56, 8, 17, 132, 137, 255, 55, 116, 128 }, |
247 | | { 58, 15, 20, 82, 135, 57, 26, 121, 40 } }, |
248 | | { { 164, 50, 31, 137, 154, 133, 25, 35, 218 }, |
249 | | { 51, 103, 44, 131, 131, 123, 31, 6, 158 }, |
250 | | { 86, 40, 64, 135, 148, 224, 45, 183, 128 }, |
251 | | { 22, 26, 17, 131, 240, 154, 14, 1, 209 }, |
252 | | { 45, 16, 21, 91, 64, 222, 7, 1, 197 }, |
253 | | { 56, 21, 39, 155, 60, 138, 23, 102, 213 }, |
254 | | { 83, 12, 13, 54, 192, 255, 68, 47, 28 }, |
255 | | { 85, 26, 85, 85, 128, 128, 32, 146, 171 }, |
256 | | { 18, 11, 7, 63, 144, 171, 4, 4, 246 }, |
257 | | { 35, 27, 10, 146, 174, 171, 12, 26, 128 } }, |
258 | | { { 190, 80, 35, 99, 180, 80, 126, 54, 45 }, |
259 | | { 85, 126, 47, 87, 176, 51, 41, 20, 32 }, |
260 | | { 101, 75, 128, 139, 118, 146, 116, 128, 85 }, |
261 | | { 56, 41, 15, 176, 236, 85, 37, 9, 62 }, |
262 | | { 71, 30, 17, 119, 118, 255, 17, 18, 138 }, |
263 | | { 101, 38, 60, 138, 55, 70, 43, 26, 142 }, |
264 | | { 146, 36, 19, 30, 171, 255, 97, 27, 20 }, |
265 | | { 138, 45, 61, 62, 219, 1, 81, 188, 64 }, |
266 | | { 32, 41, 20, 117, 151, 142, 20, 21, 163 }, |
267 | | { 112, 19, 12, 61, 195, 128, 48, 4, 24 } } |
268 | | }; |
269 | | |
270 | | static int PutI4Mode(VP8BitWriter* const bw, int mode, |
271 | 0 | const uint8_t* const prob) { |
272 | 0 | if (VP8PutBit(bw, mode != B_DC_PRED, prob[0])) { |
273 | 0 | if (VP8PutBit(bw, mode != B_TM_PRED, prob[1])) { |
274 | 0 | if (VP8PutBit(bw, mode != B_VE_PRED, prob[2])) { |
275 | 0 | if (!VP8PutBit(bw, mode >= B_LD_PRED, prob[3])) { |
276 | 0 | if (VP8PutBit(bw, mode != B_HE_PRED, prob[4])) { |
277 | 0 | VP8PutBit(bw, mode != B_RD_PRED, prob[5]); |
278 | 0 | } |
279 | 0 | } else { |
280 | 0 | if (VP8PutBit(bw, mode != B_LD_PRED, prob[6])) { |
281 | 0 | if (VP8PutBit(bw, mode != B_VL_PRED, prob[7])) { |
282 | 0 | VP8PutBit(bw, mode != B_HD_PRED, prob[8]); |
283 | 0 | } |
284 | 0 | } |
285 | 0 | } |
286 | 0 | } |
287 | 0 | } |
288 | 0 | } |
289 | 0 | return mode; |
290 | 0 | } |
291 | | |
292 | 0 | static void PutI16Mode(VP8BitWriter* const bw, int mode) { |
293 | 0 | if (VP8PutBit(bw, (mode == TM_PRED || mode == H_PRED), 156)) { |
294 | 0 | VP8PutBit(bw, mode == TM_PRED, 128); // TM or HE |
295 | 0 | } else { |
296 | 0 | VP8PutBit(bw, mode == V_PRED, 163); // VE or DC |
297 | 0 | } |
298 | 0 | } |
299 | | |
300 | 0 | static void PutUVMode(VP8BitWriter* const bw, int uv_mode) { |
301 | 0 | if (VP8PutBit(bw, uv_mode != DC_PRED, 142)) { |
302 | 0 | if (VP8PutBit(bw, uv_mode != V_PRED, 114)) { |
303 | 0 | VP8PutBit(bw, uv_mode != H_PRED, 183); // else: TM_PRED |
304 | 0 | } |
305 | 0 | } |
306 | 0 | } |
307 | | |
308 | 0 | static void PutSegment(VP8BitWriter* const bw, int s, const uint8_t* p) { |
309 | 0 | if (VP8PutBit(bw, s >= 2, p[0])) p += 1; |
310 | 0 | VP8PutBit(bw, s & 1, p[1]); |
311 | 0 | } |
312 | | |
313 | 0 | void VP8CodeIntraModes(VP8Encoder* const enc) { |
314 | 0 | VP8BitWriter* const bw = &enc->bw_; |
315 | 0 | VP8EncIterator it; |
316 | 0 | VP8IteratorInit(enc, &it); |
317 | 0 | do { |
318 | 0 | const VP8MBInfo* const mb = it.mb_; |
319 | 0 | const uint8_t* preds = it.preds_; |
320 | 0 | if (enc->segment_hdr_.update_map_) { |
321 | 0 | PutSegment(bw, mb->segment_, enc->proba_.segments_); |
322 | 0 | } |
323 | 0 | if (enc->proba_.use_skip_proba_) { |
324 | 0 | VP8PutBit(bw, mb->skip_, enc->proba_.skip_proba_); |
325 | 0 | } |
326 | 0 | if (VP8PutBit(bw, (mb->type_ != 0), 145)) { // i16x16 |
327 | 0 | PutI16Mode(bw, preds[0]); |
328 | 0 | } else { |
329 | 0 | const int preds_w = enc->preds_w_; |
330 | 0 | const uint8_t* top_pred = preds - preds_w; |
331 | 0 | int x, y; |
332 | 0 | for (y = 0; y < 4; ++y) { |
333 | 0 | int left = preds[-1]; |
334 | 0 | for (x = 0; x < 4; ++x) { |
335 | 0 | const uint8_t* const probas = kBModesProba[top_pred[x]][left]; |
336 | 0 | left = PutI4Mode(bw, preds[x], probas); |
337 | 0 | } |
338 | 0 | top_pred = preds; |
339 | 0 | preds += preds_w; |
340 | 0 | } |
341 | 0 | } |
342 | 0 | PutUVMode(bw, mb->uv_mode_); |
343 | 0 | } while (VP8IteratorNext(&it)); |
344 | 0 | } |
345 | | |
346 | | //------------------------------------------------------------------------------ |
347 | | // Paragraph 13 |
348 | | |
349 | | const uint8_t |
350 | | VP8CoeffsUpdateProba[NUM_TYPES][NUM_BANDS][NUM_CTX][NUM_PROBAS] = { |
351 | | { { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
352 | | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
353 | | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
354 | | }, |
355 | | { { 176, 246, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
356 | | { 223, 241, 252, 255, 255, 255, 255, 255, 255, 255, 255 }, |
357 | | { 249, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 } |
358 | | }, |
359 | | { { 255, 244, 252, 255, 255, 255, 255, 255, 255, 255, 255 }, |
360 | | { 234, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
361 | | { 253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
362 | | }, |
363 | | { { 255, 246, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
364 | | { 239, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
365 | | { 254, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 } |
366 | | }, |
367 | | { { 255, 248, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
368 | | { 251, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
369 | | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
370 | | }, |
371 | | { { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
372 | | { 251, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
373 | | { 254, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 } |
374 | | }, |
375 | | { { 255, 254, 253, 255, 254, 255, 255, 255, 255, 255, 255 }, |
376 | | { 250, 255, 254, 255, 254, 255, 255, 255, 255, 255, 255 }, |
377 | | { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
378 | | }, |
379 | | { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
380 | | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
381 | | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
382 | | } |
383 | | }, |
384 | | { { { 217, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
385 | | { 225, 252, 241, 253, 255, 255, 254, 255, 255, 255, 255 }, |
386 | | { 234, 250, 241, 250, 253, 255, 253, 254, 255, 255, 255 } |
387 | | }, |
388 | | { { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
389 | | { 223, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
390 | | { 238, 253, 254, 254, 255, 255, 255, 255, 255, 255, 255 } |
391 | | }, |
392 | | { { 255, 248, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
393 | | { 249, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
394 | | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
395 | | }, |
396 | | { { 255, 253, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
397 | | { 247, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
398 | | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
399 | | }, |
400 | | { { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
401 | | { 252, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
402 | | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
403 | | }, |
404 | | { { 255, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
405 | | { 253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
406 | | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
407 | | }, |
408 | | { { 255, 254, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, |
409 | | { 250, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
410 | | { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
411 | | }, |
412 | | { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
413 | | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
414 | | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
415 | | } |
416 | | }, |
417 | | { { { 186, 251, 250, 255, 255, 255, 255, 255, 255, 255, 255 }, |
418 | | { 234, 251, 244, 254, 255, 255, 255, 255, 255, 255, 255 }, |
419 | | { 251, 251, 243, 253, 254, 255, 254, 255, 255, 255, 255 } |
420 | | }, |
421 | | { { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
422 | | { 236, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
423 | | { 251, 253, 253, 254, 254, 255, 255, 255, 255, 255, 255 } |
424 | | }, |
425 | | { { 255, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
426 | | { 254, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
427 | | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
428 | | }, |
429 | | { { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
430 | | { 254, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
431 | | { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
432 | | }, |
433 | | { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
434 | | { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
435 | | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
436 | | }, |
437 | | { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
438 | | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
439 | | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
440 | | }, |
441 | | { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
442 | | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
443 | | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
444 | | }, |
445 | | { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
446 | | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
447 | | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
448 | | } |
449 | | }, |
450 | | { { { 248, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
451 | | { 250, 254, 252, 254, 255, 255, 255, 255, 255, 255, 255 }, |
452 | | { 248, 254, 249, 253, 255, 255, 255, 255, 255, 255, 255 } |
453 | | }, |
454 | | { { 255, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, |
455 | | { 246, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, |
456 | | { 252, 254, 251, 254, 254, 255, 255, 255, 255, 255, 255 } |
457 | | }, |
458 | | { { 255, 254, 252, 255, 255, 255, 255, 255, 255, 255, 255 }, |
459 | | { 248, 254, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, |
460 | | { 253, 255, 254, 254, 255, 255, 255, 255, 255, 255, 255 } |
461 | | }, |
462 | | { { 255, 251, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
463 | | { 245, 251, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
464 | | { 253, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 } |
465 | | }, |
466 | | { { 255, 251, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, |
467 | | { 252, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
468 | | { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
469 | | }, |
470 | | { { 255, 252, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
471 | | { 249, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
472 | | { 255, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 } |
473 | | }, |
474 | | { { 255, 255, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, |
475 | | { 250, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
476 | | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
477 | | }, |
478 | | { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
479 | | { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
480 | | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
481 | | } |
482 | | } |
483 | | }; |
484 | | |
485 | 0 | void VP8WriteProbas(VP8BitWriter* const bw, const VP8EncProba* const probas) { |
486 | 0 | int t, b, c, p; |
487 | 0 | for (t = 0; t < NUM_TYPES; ++t) { |
488 | 0 | for (b = 0; b < NUM_BANDS; ++b) { |
489 | 0 | for (c = 0; c < NUM_CTX; ++c) { |
490 | 0 | for (p = 0; p < NUM_PROBAS; ++p) { |
491 | 0 | const uint8_t p0 = probas->coeffs_[t][b][c][p]; |
492 | 0 | const int update = (p0 != VP8CoeffsProba0[t][b][c][p]); |
493 | 0 | if (VP8PutBit(bw, update, VP8CoeffsUpdateProba[t][b][c][p])) { |
494 | 0 | VP8PutBits(bw, p0, 8); |
495 | 0 | } |
496 | 0 | } |
497 | 0 | } |
498 | 0 | } |
499 | 0 | } |
500 | 0 | if (VP8PutBitUniform(bw, probas->use_skip_proba_)) { |
501 | 0 | VP8PutBits(bw, probas->skip_proba_, 8); |
502 | 0 | } |
503 | 0 | } |
504 | | |