tree_enc.c 21 KB

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