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1 // Copyright 2011 Google Inc. All Rights Reserved.
2 //
3 // This code is licensed under the same terms as WebM:
4 //  Software License Agreement:  http://www.webmproject.org/license/software/
5 //  Additional IP Rights Grant:  http://www.webmproject.org/license/additional/
6 // -----------------------------------------------------------------------------
7 //
8 // Token probabilities
9 //
10 // Author: Skal (pascal.massimino@gmail.com)
11 
12 #include "./vp8enci.h"
13 
14 #if defined(__cplusplus) || defined(c_plusplus)
15 extern "C" {
16 #endif
17 
18 //------------------------------------------------------------------------------
19 // Default probabilities
20 
21 // Paragraph 13.5
22 const uint8_t
23   VP8CoeffsProba0[NUM_TYPES][NUM_BANDS][NUM_CTX][NUM_PROBAS] = {
24   // genereated using vp8_default_coef_probs() in entropy.c:129
25   { { { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
26       { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
27       { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }
28     },
29     { { 253, 136, 254, 255, 228, 219, 128, 128, 128, 128, 128 },
30       { 189, 129, 242, 255, 227, 213, 255, 219, 128, 128, 128 },
31       { 106, 126, 227, 252, 214, 209, 255, 255, 128, 128, 128 }
32     },
33     { { 1, 98, 248, 255, 236, 226, 255, 255, 128, 128, 128 },
34       { 181, 133, 238, 254, 221, 234, 255, 154, 128, 128, 128 },
35       { 78, 134, 202, 247, 198, 180, 255, 219, 128, 128, 128 },
36     },
37     { { 1, 185, 249, 255, 243, 255, 128, 128, 128, 128, 128 },
38       { 184, 150, 247, 255, 236, 224, 128, 128, 128, 128, 128 },
39       { 77, 110, 216, 255, 236, 230, 128, 128, 128, 128, 128 },
40     },
41     { { 1, 101, 251, 255, 241, 255, 128, 128, 128, 128, 128 },
42       { 170, 139, 241, 252, 236, 209, 255, 255, 128, 128, 128 },
43       { 37, 116, 196, 243, 228, 255, 255, 255, 128, 128, 128 }
44     },
45     { { 1, 204, 254, 255, 245, 255, 128, 128, 128, 128, 128 },
46       { 207, 160, 250, 255, 238, 128, 128, 128, 128, 128, 128 },
47       { 102, 103, 231, 255, 211, 171, 128, 128, 128, 128, 128 }
48     },
49     { { 1, 152, 252, 255, 240, 255, 128, 128, 128, 128, 128 },
50       { 177, 135, 243, 255, 234, 225, 128, 128, 128, 128, 128 },
51       { 80, 129, 211, 255, 194, 224, 128, 128, 128, 128, 128 }
52     },
53     { { 1, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
54       { 246, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
55       { 255, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }
56     }
57   },
58   { { { 198, 35, 237, 223, 193, 187, 162, 160, 145, 155, 62 },
59       { 131, 45, 198, 221, 172, 176, 220, 157, 252, 221, 1 },
60       { 68, 47, 146, 208, 149, 167, 221, 162, 255, 223, 128 }
61     },
62     { { 1, 149, 241, 255, 221, 224, 255, 255, 128, 128, 128 },
63       { 184, 141, 234, 253, 222, 220, 255, 199, 128, 128, 128 },
64       { 81, 99, 181, 242, 176, 190, 249, 202, 255, 255, 128 }
65     },
66     { { 1, 129, 232, 253, 214, 197, 242, 196, 255, 255, 128 },
67       { 99, 121, 210, 250, 201, 198, 255, 202, 128, 128, 128 },
68       { 23, 91, 163, 242, 170, 187, 247, 210, 255, 255, 128 }
69     },
70     { { 1, 200, 246, 255, 234, 255, 128, 128, 128, 128, 128 },
71       { 109, 178, 241, 255, 231, 245, 255, 255, 128, 128, 128 },
72       { 44, 130, 201, 253, 205, 192, 255, 255, 128, 128, 128 }
73     },
74     { { 1, 132, 239, 251, 219, 209, 255, 165, 128, 128, 128 },
75       { 94, 136, 225, 251, 218, 190, 255, 255, 128, 128, 128 },
76       { 22, 100, 174, 245, 186, 161, 255, 199, 128, 128, 128 }
77     },
78     { { 1, 182, 249, 255, 232, 235, 128, 128, 128, 128, 128 },
79       { 124, 143, 241, 255, 227, 234, 128, 128, 128, 128, 128 },
80       { 35, 77, 181, 251, 193, 211, 255, 205, 128, 128, 128 }
81     },
82     { { 1, 157, 247, 255, 236, 231, 255, 255, 128, 128, 128 },
83       { 121, 141, 235, 255, 225, 227, 255, 255, 128, 128, 128 },
84       { 45, 99, 188, 251, 195, 217, 255, 224, 128, 128, 128 }
85     },
86     { { 1, 1, 251, 255, 213, 255, 128, 128, 128, 128, 128 },
87       { 203, 1, 248, 255, 255, 128, 128, 128, 128, 128, 128 },
88       { 137, 1, 177, 255, 224, 255, 128, 128, 128, 128, 128 }
89     }
90   },
91   { { { 253, 9, 248, 251, 207, 208, 255, 192, 128, 128, 128 },
92       { 175, 13, 224, 243, 193, 185, 249, 198, 255, 255, 128 },
93       { 73, 17, 171, 221, 161, 179, 236, 167, 255, 234, 128 }
94     },
95     { { 1, 95, 247, 253, 212, 183, 255, 255, 128, 128, 128 },
96       { 239, 90, 244, 250, 211, 209, 255, 255, 128, 128, 128 },
97       { 155, 77, 195, 248, 188, 195, 255, 255, 128, 128, 128 }
98     },
99     { { 1, 24, 239, 251, 218, 219, 255, 205, 128, 128, 128 },
100       { 201, 51, 219, 255, 196, 186, 128, 128, 128, 128, 128 },
101       { 69, 46, 190, 239, 201, 218, 255, 228, 128, 128, 128 }
102     },
103     { { 1, 191, 251, 255, 255, 128, 128, 128, 128, 128, 128 },
104       { 223, 165, 249, 255, 213, 255, 128, 128, 128, 128, 128 },
105       { 141, 124, 248, 255, 255, 128, 128, 128, 128, 128, 128 }
106     },
107     { { 1, 16, 248, 255, 255, 128, 128, 128, 128, 128, 128 },
108       { 190, 36, 230, 255, 236, 255, 128, 128, 128, 128, 128 },
109       { 149, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }
110     },
111     { { 1, 226, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
112       { 247, 192, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
113       { 240, 128, 255, 128, 128, 128, 128, 128, 128, 128, 128 }
114     },
115     { { 1, 134, 252, 255, 255, 128, 128, 128, 128, 128, 128 },
116       { 213, 62, 250, 255, 255, 128, 128, 128, 128, 128, 128 },
117       { 55, 93, 255, 128, 128, 128, 128, 128, 128, 128, 128 }
118     },
119     { { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
120       { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
121       { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }
122     }
123   },
124   { { { 202, 24, 213, 235, 186, 191, 220, 160, 240, 175, 255 },
125       { 126, 38, 182, 232, 169, 184, 228, 174, 255, 187, 128 },
126       { 61, 46, 138, 219, 151, 178, 240, 170, 255, 216, 128 }
127     },
128     { { 1, 112, 230, 250, 199, 191, 247, 159, 255, 255, 128 },
129       { 166, 109, 228, 252, 211, 215, 255, 174, 128, 128, 128 },
130       { 39, 77, 162, 232, 172, 180, 245, 178, 255, 255, 128 }
131     },
132     { { 1, 52, 220, 246, 198, 199, 249, 220, 255, 255, 128 },
133       { 124, 74, 191, 243, 183, 193, 250, 221, 255, 255, 128 },
134       { 24, 71, 130, 219, 154, 170, 243, 182, 255, 255, 128 }
135     },
136     { { 1, 182, 225, 249, 219, 240, 255, 224, 128, 128, 128 },
137       { 149, 150, 226, 252, 216, 205, 255, 171, 128, 128, 128 },
138       { 28, 108, 170, 242, 183, 194, 254, 223, 255, 255, 128 }
139     },
140     { { 1, 81, 230, 252, 204, 203, 255, 192, 128, 128, 128 },
141       { 123, 102, 209, 247, 188, 196, 255, 233, 128, 128, 128 },
142       { 20, 95, 153, 243, 164, 173, 255, 203, 128, 128, 128 }
143     },
144     { { 1, 222, 248, 255, 216, 213, 128, 128, 128, 128, 128 },
145       { 168, 175, 246, 252, 235, 205, 255, 255, 128, 128, 128 },
146       { 47, 116, 215, 255, 211, 212, 255, 255, 128, 128, 128 }
147     },
148     { { 1, 121, 236, 253, 212, 214, 255, 255, 128, 128, 128 },
149       { 141, 84, 213, 252, 201, 202, 255, 219, 128, 128, 128 },
150       { 42, 80, 160, 240, 162, 185, 255, 205, 128, 128, 128 }
151     },
152     { { 1, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
153       { 244, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
154       { 238, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }
155     }
156   }
157 };
158 
VP8DefaultProbas(VP8Encoder * const enc)159 void VP8DefaultProbas(VP8Encoder* const enc) {
160   VP8Proba* const probas = &enc->proba_;
161   probas->use_skip_proba_ = 0;
162   memset(probas->segments_, 255u, sizeof(probas->segments_));
163   memcpy(probas->coeffs_, VP8CoeffsProba0, sizeof(VP8CoeffsProba0));
164   // Note: we could hard-code the level_costs_ corresponding to VP8CoeffsProba0,
165   // but that's ~11k of static data. Better call VP8CalculateLevelCosts() later.
166   probas->dirty_ = 1;
167 }
168 
169 // Paragraph 11.5.  900bytes.
170 static const uint8_t kBModesProba[NUM_BMODES][NUM_BMODES][NUM_BMODES - 1] = {
171   { { 231, 120, 48, 89, 115, 113, 120, 152, 112 },
172     { 152, 179, 64, 126, 170, 118, 46, 70, 95 },
173     { 175, 69, 143, 80, 85, 82, 72, 155, 103 },
174     { 56, 58, 10, 171, 218, 189, 17, 13, 152 },
175     { 114, 26, 17, 163, 44, 195, 21, 10, 173 },
176     { 121, 24, 80, 195, 26, 62, 44, 64, 85 },
177     { 144, 71, 10, 38, 171, 213, 144, 34, 26 },
178     { 170, 46, 55, 19, 136, 160, 33, 206, 71 },
179     { 63, 20, 8, 114, 114, 208, 12, 9, 226 },
180     { 81, 40, 11, 96, 182, 84, 29, 16, 36 } },
181   { { 134, 183, 89, 137, 98, 101, 106, 165, 148 },
182     { 72, 187, 100, 130, 157, 111, 32, 75, 80 },
183     { 66, 102, 167, 99, 74, 62, 40, 234, 128 },
184     { 41, 53, 9, 178, 241, 141, 26, 8, 107 },
185     { 74, 43, 26, 146, 73, 166, 49, 23, 157 },
186     { 65, 38, 105, 160, 51, 52, 31, 115, 128 },
187     { 104, 79, 12, 27, 217, 255, 87, 17, 7 },
188     { 87, 68, 71, 44, 114, 51, 15, 186, 23 },
189     { 47, 41, 14, 110, 182, 183, 21, 17, 194 },
190     { 66, 45, 25, 102, 197, 189, 23, 18, 22 } },
191   { { 88, 88, 147, 150, 42, 46, 45, 196, 205 },
192     { 43, 97, 183, 117, 85, 38, 35, 179, 61 },
193     { 39, 53, 200, 87, 26, 21, 43, 232, 171 },
194     { 56, 34, 51, 104, 114, 102, 29, 93, 77 },
195     { 39, 28, 85, 171, 58, 165, 90, 98, 64 },
196     { 34, 22, 116, 206, 23, 34, 43, 166, 73 },
197     { 107, 54, 32, 26, 51, 1, 81, 43, 31 },
198     { 68, 25, 106, 22, 64, 171, 36, 225, 114 },
199     { 34, 19, 21, 102, 132, 188, 16, 76, 124 },
200     { 62, 18, 78, 95, 85, 57, 50, 48, 51 } },
201   { { 193, 101, 35, 159, 215, 111, 89, 46, 111 },
202     { 60, 148, 31, 172, 219, 228, 21, 18, 111 },
203     { 112, 113, 77, 85, 179, 255, 38, 120, 114 },
204     { 40, 42, 1, 196, 245, 209, 10, 25, 109 },
205     { 88, 43, 29, 140, 166, 213, 37, 43, 154 },
206     { 61, 63, 30, 155, 67, 45, 68, 1, 209 },
207     { 100, 80, 8, 43, 154, 1, 51, 26, 71 },
208     { 142, 78, 78, 16, 255, 128, 34, 197, 171 },
209     { 41, 40, 5, 102, 211, 183, 4, 1, 221 },
210     { 51, 50, 17, 168, 209, 192, 23, 25, 82 } },
211   { { 138, 31, 36, 171, 27, 166, 38, 44, 229 },
212     { 67, 87, 58, 169, 82, 115, 26, 59, 179 },
213     { 63, 59, 90, 180, 59, 166, 93, 73, 154 },
214     { 40, 40, 21, 116, 143, 209, 34, 39, 175 },
215     { 47, 15, 16, 183, 34, 223, 49, 45, 183 },
216     { 46, 17, 33, 183, 6, 98, 15, 32, 183 },
217     { 57, 46, 22, 24, 128, 1, 54, 17, 37 },
218     { 65, 32, 73, 115, 28, 128, 23, 128, 205 },
219     { 40, 3, 9, 115, 51, 192, 18, 6, 223 },
220     { 87, 37, 9, 115, 59, 77, 64, 21, 47 } },
221   { { 104, 55, 44, 218, 9, 54, 53, 130, 226 },
222     { 64, 90, 70, 205, 40, 41, 23, 26, 57 },
223     { 54, 57, 112, 184, 5, 41, 38, 166, 213 },
224     { 30, 34, 26, 133, 152, 116, 10, 32, 134 },
225     { 39, 19, 53, 221, 26, 114, 32, 73, 255 },
226     { 31, 9, 65, 234, 2, 15, 1, 118, 73 },
227     { 75, 32, 12, 51, 192, 255, 160, 43, 51 },
228     { 88, 31, 35, 67, 102, 85, 55, 186, 85 },
229     { 56, 21, 23, 111, 59, 205, 45, 37, 192 },
230     { 55, 38, 70, 124, 73, 102, 1, 34, 98 } },
231   { { 125, 98, 42, 88, 104, 85, 117, 175, 82 },
232     { 95, 84, 53, 89, 128, 100, 113, 101, 45 },
233     { 75, 79, 123, 47, 51, 128, 81, 171, 1 },
234     { 57, 17, 5, 71, 102, 57, 53, 41, 49 },
235     { 38, 33, 13, 121, 57, 73, 26, 1, 85 },
236     { 41, 10, 67, 138, 77, 110, 90, 47, 114 },
237     { 115, 21, 2, 10, 102, 255, 166, 23, 6 },
238     { 101, 29, 16, 10, 85, 128, 101, 196, 26 },
239     { 57, 18, 10, 102, 102, 213, 34, 20, 43 },
240     { 117, 20, 15, 36, 163, 128, 68, 1, 26 } },
241   { { 102, 61, 71, 37, 34, 53, 31, 243, 192 },
242     { 69, 60, 71, 38, 73, 119, 28, 222, 37 },
243     { 68, 45, 128, 34, 1, 47, 11, 245, 171 },
244     { 62, 17, 19, 70, 146, 85, 55, 62, 70 },
245     { 37, 43, 37, 154, 100, 163, 85, 160, 1 },
246     { 63, 9, 92, 136, 28, 64, 32, 201, 85 },
247     { 75, 15, 9, 9, 64, 255, 184, 119, 16 },
248     { 86, 6, 28, 5, 64, 255, 25, 248, 1 },
249     { 56, 8, 17, 132, 137, 255, 55, 116, 128 },
250     { 58, 15, 20, 82, 135, 57, 26, 121, 40 } },
251   { { 164, 50, 31, 137, 154, 133, 25, 35, 218 },
252     { 51, 103, 44, 131, 131, 123, 31, 6, 158 },
253     { 86, 40, 64, 135, 148, 224, 45, 183, 128 },
254     { 22, 26, 17, 131, 240, 154, 14, 1, 209 },
255     { 45, 16, 21, 91, 64, 222, 7, 1, 197 },
256     { 56, 21, 39, 155, 60, 138, 23, 102, 213 },
257     { 83, 12, 13, 54, 192, 255, 68, 47, 28 },
258     { 85, 26, 85, 85, 128, 128, 32, 146, 171 },
259     { 18, 11, 7, 63, 144, 171, 4, 4, 246 },
260     { 35, 27, 10, 146, 174, 171, 12, 26, 128 } },
261   { { 190, 80, 35, 99, 180, 80, 126, 54, 45 },
262     { 85, 126, 47, 87, 176, 51, 41, 20, 32 },
263     { 101, 75, 128, 139, 118, 146, 116, 128, 85 },
264     { 56, 41, 15, 176, 236, 85, 37, 9, 62 },
265     { 71, 30, 17, 119, 118, 255, 17, 18, 138 },
266     { 101, 38, 60, 138, 55, 70, 43, 26, 142 },
267     { 146, 36, 19, 30, 171, 255, 97, 27, 20 },
268     { 138, 45, 61, 62, 219, 1, 81, 188, 64 },
269     { 32, 41, 20, 117, 151, 142, 20, 21, 163 },
270     { 112, 19, 12, 61, 195, 128, 48, 4, 24 } }
271 };
272 
PutI4Mode(VP8BitWriter * const bw,int mode,const uint8_t * const prob)273 static int PutI4Mode(VP8BitWriter* const bw, int mode,
274                      const uint8_t* const prob) {
275   if (VP8PutBit(bw, mode != B_DC_PRED, prob[0])) {
276     if (VP8PutBit(bw, mode != B_TM_PRED, prob[1])) {
277       if (VP8PutBit(bw, mode != B_VE_PRED, prob[2])) {
278         if (!VP8PutBit(bw, mode >= B_LD_PRED, prob[3])) {
279           if (VP8PutBit(bw, mode != B_HE_PRED, prob[4])) {
280             VP8PutBit(bw, mode != B_RD_PRED, prob[5]);
281           }
282         } else {
283           if (VP8PutBit(bw, mode != B_LD_PRED, prob[6])) {
284             if (VP8PutBit(bw, mode != B_VL_PRED, prob[7])) {
285               VP8PutBit(bw, mode != B_HD_PRED, prob[8]);
286             }
287           }
288         }
289       }
290     }
291   }
292   return mode;
293 }
294 
PutI16Mode(VP8BitWriter * const bw,int mode)295 static void PutI16Mode(VP8BitWriter* const bw, int mode) {
296   if (VP8PutBit(bw, (mode == TM_PRED || mode == H_PRED), 156)) {
297     VP8PutBit(bw, mode == TM_PRED, 128);    // TM or HE
298   } else {
299     VP8PutBit(bw, mode == V_PRED, 163);     // VE or DC
300   }
301 }
302 
PutUVMode(VP8BitWriter * const bw,int uv_mode)303 static void PutUVMode(VP8BitWriter* const bw, int uv_mode) {
304   if (VP8PutBit(bw, uv_mode != DC_PRED, 142)) {
305     if (VP8PutBit(bw, uv_mode != V_PRED, 114)) {
306       VP8PutBit(bw, uv_mode != H_PRED, 183);    // else: TM_PRED
307     }
308   }
309 }
310 
PutSegment(VP8BitWriter * const bw,int s,const uint8_t * p)311 static void PutSegment(VP8BitWriter* const bw, int s, const uint8_t* p) {
312   if (VP8PutBit(bw, s >= 2, p[0])) p += 1;
313   VP8PutBit(bw, s & 1, p[1]);
314 }
315 
VP8CodeIntraModes(VP8Encoder * const enc)316 void VP8CodeIntraModes(VP8Encoder* const enc) {
317   VP8BitWriter* const bw = &enc->bw_;
318   VP8EncIterator it;
319   VP8IteratorInit(enc, &it);
320   do {
321     const VP8MBInfo* mb = it.mb_;
322     const uint8_t* preds = it.preds_;
323     if (enc->segment_hdr_.update_map_) {
324       PutSegment(bw, mb->segment_, enc->proba_.segments_);
325     }
326     if (enc->proba_.use_skip_proba_) {
327       VP8PutBit(bw, mb->skip_, enc->proba_.skip_proba_);
328     }
329     if (VP8PutBit(bw, (mb->type_ != 0), 145)) {  // i16x16
330       PutI16Mode(bw, preds[0]);
331     } else {
332       const int preds_w = enc->preds_w_;
333       const uint8_t* top_pred = preds - preds_w;
334       int x, y;
335       for (y = 0; y < 4; ++y) {
336         int left = preds[-1];
337         for (x = 0; x < 4; ++x) {
338           const uint8_t* const probas = kBModesProba[top_pred[x]][left];
339           left = PutI4Mode(bw, preds[x], probas);
340         }
341         top_pred = preds;
342         preds += preds_w;
343       }
344     }
345     PutUVMode(bw, mb->uv_mode_);
346   } while (VP8IteratorNext(&it, 0));
347 }
348 
349 //------------------------------------------------------------------------------
350 // Paragraph 13
351 
352 const uint8_t
353     VP8CoeffsUpdateProba[NUM_TYPES][NUM_BANDS][NUM_CTX][NUM_PROBAS] = {
354   { { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
355       { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
356       { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
357     },
358     { { 176, 246, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
359       { 223, 241, 252, 255, 255, 255, 255, 255, 255, 255, 255 },
360       { 249, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 }
361     },
362     { { 255, 244, 252, 255, 255, 255, 255, 255, 255, 255, 255 },
363       { 234, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
364       { 253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
365     },
366     { { 255, 246, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
367       { 239, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
368       { 254, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 }
369     },
370     { { 255, 248, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
371       { 251, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
372       { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
373     },
374     { { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
375       { 251, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
376       { 254, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 }
377     },
378     { { 255, 254, 253, 255, 254, 255, 255, 255, 255, 255, 255 },
379       { 250, 255, 254, 255, 254, 255, 255, 255, 255, 255, 255 },
380       { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
381     },
382     { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
383       { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
384       { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
385     }
386   },
387   { { { 217, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
388       { 225, 252, 241, 253, 255, 255, 254, 255, 255, 255, 255 },
389       { 234, 250, 241, 250, 253, 255, 253, 254, 255, 255, 255 }
390     },
391     { { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
392       { 223, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
393       { 238, 253, 254, 254, 255, 255, 255, 255, 255, 255, 255 }
394     },
395     { { 255, 248, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
396       { 249, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
397       { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
398     },
399     { { 255, 253, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
400       { 247, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
401       { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
402     },
403     { { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
404       { 252, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
405       { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
406     },
407     { { 255, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
408       { 253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
409       { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
410     },
411     { { 255, 254, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
412       { 250, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
413       { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
414     },
415     { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
416       { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
417       { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
418     }
419   },
420   { { { 186, 251, 250, 255, 255, 255, 255, 255, 255, 255, 255 },
421       { 234, 251, 244, 254, 255, 255, 255, 255, 255, 255, 255 },
422       { 251, 251, 243, 253, 254, 255, 254, 255, 255, 255, 255 }
423     },
424     { { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
425       { 236, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
426       { 251, 253, 253, 254, 254, 255, 255, 255, 255, 255, 255 }
427     },
428     { { 255, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
429       { 254, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
430       { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
431     },
432     { { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
433       { 254, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
434       { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
435     },
436     { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
437       { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
438       { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
439     },
440     { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
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     },
444     { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
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     },
448     { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
449       { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
450       { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
451     }
452   },
453   { { { 248, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
454       { 250, 254, 252, 254, 255, 255, 255, 255, 255, 255, 255 },
455       { 248, 254, 249, 253, 255, 255, 255, 255, 255, 255, 255 }
456     },
457     { { 255, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
458       { 246, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
459       { 252, 254, 251, 254, 254, 255, 255, 255, 255, 255, 255 }
460     },
461     { { 255, 254, 252, 255, 255, 255, 255, 255, 255, 255, 255 },
462       { 248, 254, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
463       { 253, 255, 254, 254, 255, 255, 255, 255, 255, 255, 255 }
464     },
465     { { 255, 251, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
466       { 245, 251, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
467       { 253, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }
468     },
469     { { 255, 251, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
470       { 252, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
471       { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
472     },
473     { { 255, 252, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
474       { 249, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
475       { 255, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 }
476     },
477     { { 255, 255, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
478       { 250, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
479       { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
480     },
481     { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
482       { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
483       { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
484     }
485   }
486 };
487 
VP8WriteProbas(VP8BitWriter * const bw,const VP8Proba * const probas)488 void VP8WriteProbas(VP8BitWriter* const bw, const VP8Proba* const probas) {
489   int t, b, c, p;
490   for (t = 0; t < NUM_TYPES; ++t) {
491     for (b = 0; b < NUM_BANDS; ++b) {
492       for (c = 0; c < NUM_CTX; ++c) {
493         for (p = 0; p < NUM_PROBAS; ++p) {
494           const uint8_t p0 = probas->coeffs_[t][b][c][p];
495           const int update = (p0 != VP8CoeffsProba0[t][b][c][p]);
496           if (VP8PutBit(bw, update, VP8CoeffsUpdateProba[t][b][c][p])) {
497             VP8PutValue(bw, p0, 8);
498           }
499         }
500       }
501     }
502   }
503   if (VP8PutBitUniform(bw, probas->use_skip_proba_)) {
504     VP8PutValue(bw, probas->skip_proba_, 8);
505   }
506 }
507 
508 #if defined(__cplusplus) || defined(c_plusplus)
509 }    // extern "C"
510 #endif
511