Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 1 | // Copyright 2010 Google Inc. All Rights Reserved. |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 2 | // |
Vikas Arora | 0406ce1 | 2013-08-09 15:57:12 -0700 | [diff] [blame] | 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. |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 8 | // ----------------------------------------------------------------------------- |
| 9 | // |
| 10 | // Coding trees and probas |
| 11 | // |
| 12 | // Author: Skal (pascal.massimino@gmail.com) |
| 13 | |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 14 | #include "vp8i.h" |
Vikas Arora | af51b94 | 2014-08-28 10:51:12 -0700 | [diff] [blame] | 15 | #include "../utils/bit_reader_inl.h" |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 16 | |
| 17 | #define USE_GENERIC_TREE |
| 18 | |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 19 | #ifdef USE_GENERIC_TREE |
| 20 | static const int8_t kYModesIntra4[18] = { |
| 21 | -B_DC_PRED, 1, |
| 22 | -B_TM_PRED, 2, |
| 23 | -B_VE_PRED, 3, |
| 24 | 4, 6, |
| 25 | -B_HE_PRED, 5, |
| 26 | -B_RD_PRED, -B_VR_PRED, |
| 27 | -B_LD_PRED, 7, |
| 28 | -B_VL_PRED, 8, |
| 29 | -B_HD_PRED, -B_HU_PRED |
| 30 | }; |
| 31 | #endif |
| 32 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 33 | //------------------------------------------------------------------------------ |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 34 | // Default probabilities |
| 35 | |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 36 | // Paragraph 13.5 |
| 37 | static const uint8_t |
| 38 | CoeffsProba0[NUM_TYPES][NUM_BANDS][NUM_CTX][NUM_PROBAS] = { |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 39 | { { { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }, |
| 40 | { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }, |
| 41 | { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 } |
| 42 | }, |
| 43 | { { 253, 136, 254, 255, 228, 219, 128, 128, 128, 128, 128 }, |
| 44 | { 189, 129, 242, 255, 227, 213, 255, 219, 128, 128, 128 }, |
| 45 | { 106, 126, 227, 252, 214, 209, 255, 255, 128, 128, 128 } |
| 46 | }, |
| 47 | { { 1, 98, 248, 255, 236, 226, 255, 255, 128, 128, 128 }, |
| 48 | { 181, 133, 238, 254, 221, 234, 255, 154, 128, 128, 128 }, |
| 49 | { 78, 134, 202, 247, 198, 180, 255, 219, 128, 128, 128 }, |
| 50 | }, |
| 51 | { { 1, 185, 249, 255, 243, 255, 128, 128, 128, 128, 128 }, |
| 52 | { 184, 150, 247, 255, 236, 224, 128, 128, 128, 128, 128 }, |
| 53 | { 77, 110, 216, 255, 236, 230, 128, 128, 128, 128, 128 }, |
| 54 | }, |
| 55 | { { 1, 101, 251, 255, 241, 255, 128, 128, 128, 128, 128 }, |
| 56 | { 170, 139, 241, 252, 236, 209, 255, 255, 128, 128, 128 }, |
| 57 | { 37, 116, 196, 243, 228, 255, 255, 255, 128, 128, 128 } |
| 58 | }, |
| 59 | { { 1, 204, 254, 255, 245, 255, 128, 128, 128, 128, 128 }, |
| 60 | { 207, 160, 250, 255, 238, 128, 128, 128, 128, 128, 128 }, |
| 61 | { 102, 103, 231, 255, 211, 171, 128, 128, 128, 128, 128 } |
| 62 | }, |
| 63 | { { 1, 152, 252, 255, 240, 255, 128, 128, 128, 128, 128 }, |
| 64 | { 177, 135, 243, 255, 234, 225, 128, 128, 128, 128, 128 }, |
| 65 | { 80, 129, 211, 255, 194, 224, 128, 128, 128, 128, 128 } |
| 66 | }, |
| 67 | { { 1, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, |
| 68 | { 246, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, |
| 69 | { 255, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 } |
| 70 | } |
| 71 | }, |
| 72 | { { { 198, 35, 237, 223, 193, 187, 162, 160, 145, 155, 62 }, |
| 73 | { 131, 45, 198, 221, 172, 176, 220, 157, 252, 221, 1 }, |
| 74 | { 68, 47, 146, 208, 149, 167, 221, 162, 255, 223, 128 } |
| 75 | }, |
| 76 | { { 1, 149, 241, 255, 221, 224, 255, 255, 128, 128, 128 }, |
| 77 | { 184, 141, 234, 253, 222, 220, 255, 199, 128, 128, 128 }, |
| 78 | { 81, 99, 181, 242, 176, 190, 249, 202, 255, 255, 128 } |
| 79 | }, |
| 80 | { { 1, 129, 232, 253, 214, 197, 242, 196, 255, 255, 128 }, |
| 81 | { 99, 121, 210, 250, 201, 198, 255, 202, 128, 128, 128 }, |
| 82 | { 23, 91, 163, 242, 170, 187, 247, 210, 255, 255, 128 } |
| 83 | }, |
| 84 | { { 1, 200, 246, 255, 234, 255, 128, 128, 128, 128, 128 }, |
| 85 | { 109, 178, 241, 255, 231, 245, 255, 255, 128, 128, 128 }, |
| 86 | { 44, 130, 201, 253, 205, 192, 255, 255, 128, 128, 128 } |
| 87 | }, |
| 88 | { { 1, 132, 239, 251, 219, 209, 255, 165, 128, 128, 128 }, |
| 89 | { 94, 136, 225, 251, 218, 190, 255, 255, 128, 128, 128 }, |
| 90 | { 22, 100, 174, 245, 186, 161, 255, 199, 128, 128, 128 } |
| 91 | }, |
| 92 | { { 1, 182, 249, 255, 232, 235, 128, 128, 128, 128, 128 }, |
| 93 | { 124, 143, 241, 255, 227, 234, 128, 128, 128, 128, 128 }, |
| 94 | { 35, 77, 181, 251, 193, 211, 255, 205, 128, 128, 128 } |
| 95 | }, |
| 96 | { { 1, 157, 247, 255, 236, 231, 255, 255, 128, 128, 128 }, |
| 97 | { 121, 141, 235, 255, 225, 227, 255, 255, 128, 128, 128 }, |
| 98 | { 45, 99, 188, 251, 195, 217, 255, 224, 128, 128, 128 } |
| 99 | }, |
| 100 | { { 1, 1, 251, 255, 213, 255, 128, 128, 128, 128, 128 }, |
| 101 | { 203, 1, 248, 255, 255, 128, 128, 128, 128, 128, 128 }, |
| 102 | { 137, 1, 177, 255, 224, 255, 128, 128, 128, 128, 128 } |
| 103 | } |
| 104 | }, |
| 105 | { { { 253, 9, 248, 251, 207, 208, 255, 192, 128, 128, 128 }, |
| 106 | { 175, 13, 224, 243, 193, 185, 249, 198, 255, 255, 128 }, |
| 107 | { 73, 17, 171, 221, 161, 179, 236, 167, 255, 234, 128 } |
| 108 | }, |
| 109 | { { 1, 95, 247, 253, 212, 183, 255, 255, 128, 128, 128 }, |
| 110 | { 239, 90, 244, 250, 211, 209, 255, 255, 128, 128, 128 }, |
| 111 | { 155, 77, 195, 248, 188, 195, 255, 255, 128, 128, 128 } |
| 112 | }, |
| 113 | { { 1, 24, 239, 251, 218, 219, 255, 205, 128, 128, 128 }, |
| 114 | { 201, 51, 219, 255, 196, 186, 128, 128, 128, 128, 128 }, |
| 115 | { 69, 46, 190, 239, 201, 218, 255, 228, 128, 128, 128 } |
| 116 | }, |
| 117 | { { 1, 191, 251, 255, 255, 128, 128, 128, 128, 128, 128 }, |
| 118 | { 223, 165, 249, 255, 213, 255, 128, 128, 128, 128, 128 }, |
| 119 | { 141, 124, 248, 255, 255, 128, 128, 128, 128, 128, 128 } |
| 120 | }, |
| 121 | { { 1, 16, 248, 255, 255, 128, 128, 128, 128, 128, 128 }, |
| 122 | { 190, 36, 230, 255, 236, 255, 128, 128, 128, 128, 128 }, |
| 123 | { 149, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 } |
| 124 | }, |
| 125 | { { 1, 226, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, |
| 126 | { 247, 192, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, |
| 127 | { 240, 128, 255, 128, 128, 128, 128, 128, 128, 128, 128 } |
| 128 | }, |
| 129 | { { 1, 134, 252, 255, 255, 128, 128, 128, 128, 128, 128 }, |
| 130 | { 213, 62, 250, 255, 255, 128, 128, 128, 128, 128, 128 }, |
| 131 | { 55, 93, 255, 128, 128, 128, 128, 128, 128, 128, 128 } |
| 132 | }, |
| 133 | { { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }, |
| 134 | { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }, |
| 135 | { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 } |
| 136 | } |
| 137 | }, |
| 138 | { { { 202, 24, 213, 235, 186, 191, 220, 160, 240, 175, 255 }, |
| 139 | { 126, 38, 182, 232, 169, 184, 228, 174, 255, 187, 128 }, |
| 140 | { 61, 46, 138, 219, 151, 178, 240, 170, 255, 216, 128 } |
| 141 | }, |
| 142 | { { 1, 112, 230, 250, 199, 191, 247, 159, 255, 255, 128 }, |
| 143 | { 166, 109, 228, 252, 211, 215, 255, 174, 128, 128, 128 }, |
| 144 | { 39, 77, 162, 232, 172, 180, 245, 178, 255, 255, 128 } |
| 145 | }, |
| 146 | { { 1, 52, 220, 246, 198, 199, 249, 220, 255, 255, 128 }, |
| 147 | { 124, 74, 191, 243, 183, 193, 250, 221, 255, 255, 128 }, |
| 148 | { 24, 71, 130, 219, 154, 170, 243, 182, 255, 255, 128 } |
| 149 | }, |
| 150 | { { 1, 182, 225, 249, 219, 240, 255, 224, 128, 128, 128 }, |
| 151 | { 149, 150, 226, 252, 216, 205, 255, 171, 128, 128, 128 }, |
| 152 | { 28, 108, 170, 242, 183, 194, 254, 223, 255, 255, 128 } |
| 153 | }, |
| 154 | { { 1, 81, 230, 252, 204, 203, 255, 192, 128, 128, 128 }, |
| 155 | { 123, 102, 209, 247, 188, 196, 255, 233, 128, 128, 128 }, |
| 156 | { 20, 95, 153, 243, 164, 173, 255, 203, 128, 128, 128 } |
| 157 | }, |
| 158 | { { 1, 222, 248, 255, 216, 213, 128, 128, 128, 128, 128 }, |
| 159 | { 168, 175, 246, 252, 235, 205, 255, 255, 128, 128, 128 }, |
| 160 | { 47, 116, 215, 255, 211, 212, 255, 255, 128, 128, 128 } |
| 161 | }, |
| 162 | { { 1, 121, 236, 253, 212, 214, 255, 255, 128, 128, 128 }, |
| 163 | { 141, 84, 213, 252, 201, 202, 255, 219, 128, 128, 128 }, |
| 164 | { 42, 80, 160, 240, 162, 185, 255, 205, 128, 128, 128 } |
| 165 | }, |
| 166 | { { 1, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, |
| 167 | { 244, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, |
| 168 | { 238, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 } |
| 169 | } |
| 170 | } |
| 171 | }; |
| 172 | |
| 173 | // Paragraph 11.5 |
| 174 | static const uint8_t kBModesProba[NUM_BMODES][NUM_BMODES][NUM_BMODES - 1] = { |
| 175 | { { 231, 120, 48, 89, 115, 113, 120, 152, 112 }, |
| 176 | { 152, 179, 64, 126, 170, 118, 46, 70, 95 }, |
| 177 | { 175, 69, 143, 80, 85, 82, 72, 155, 103 }, |
| 178 | { 56, 58, 10, 171, 218, 189, 17, 13, 152 }, |
| 179 | { 114, 26, 17, 163, 44, 195, 21, 10, 173 }, |
| 180 | { 121, 24, 80, 195, 26, 62, 44, 64, 85 }, |
| 181 | { 144, 71, 10, 38, 171, 213, 144, 34, 26 }, |
| 182 | { 170, 46, 55, 19, 136, 160, 33, 206, 71 }, |
| 183 | { 63, 20, 8, 114, 114, 208, 12, 9, 226 }, |
| 184 | { 81, 40, 11, 96, 182, 84, 29, 16, 36 } }, |
| 185 | { { 134, 183, 89, 137, 98, 101, 106, 165, 148 }, |
| 186 | { 72, 187, 100, 130, 157, 111, 32, 75, 80 }, |
| 187 | { 66, 102, 167, 99, 74, 62, 40, 234, 128 }, |
| 188 | { 41, 53, 9, 178, 241, 141, 26, 8, 107 }, |
| 189 | { 74, 43, 26, 146, 73, 166, 49, 23, 157 }, |
| 190 | { 65, 38, 105, 160, 51, 52, 31, 115, 128 }, |
| 191 | { 104, 79, 12, 27, 217, 255, 87, 17, 7 }, |
| 192 | { 87, 68, 71, 44, 114, 51, 15, 186, 23 }, |
| 193 | { 47, 41, 14, 110, 182, 183, 21, 17, 194 }, |
| 194 | { 66, 45, 25, 102, 197, 189, 23, 18, 22 } }, |
| 195 | { { 88, 88, 147, 150, 42, 46, 45, 196, 205 }, |
| 196 | { 43, 97, 183, 117, 85, 38, 35, 179, 61 }, |
| 197 | { 39, 53, 200, 87, 26, 21, 43, 232, 171 }, |
| 198 | { 56, 34, 51, 104, 114, 102, 29, 93, 77 }, |
| 199 | { 39, 28, 85, 171, 58, 165, 90, 98, 64 }, |
| 200 | { 34, 22, 116, 206, 23, 34, 43, 166, 73 }, |
| 201 | { 107, 54, 32, 26, 51, 1, 81, 43, 31 }, |
| 202 | { 68, 25, 106, 22, 64, 171, 36, 225, 114 }, |
| 203 | { 34, 19, 21, 102, 132, 188, 16, 76, 124 }, |
| 204 | { 62, 18, 78, 95, 85, 57, 50, 48, 51 } }, |
| 205 | { { 193, 101, 35, 159, 215, 111, 89, 46, 111 }, |
| 206 | { 60, 148, 31, 172, 219, 228, 21, 18, 111 }, |
| 207 | { 112, 113, 77, 85, 179, 255, 38, 120, 114 }, |
| 208 | { 40, 42, 1, 196, 245, 209, 10, 25, 109 }, |
| 209 | { 88, 43, 29, 140, 166, 213, 37, 43, 154 }, |
| 210 | { 61, 63, 30, 155, 67, 45, 68, 1, 209 }, |
| 211 | { 100, 80, 8, 43, 154, 1, 51, 26, 71 }, |
| 212 | { 142, 78, 78, 16, 255, 128, 34, 197, 171 }, |
| 213 | { 41, 40, 5, 102, 211, 183, 4, 1, 221 }, |
| 214 | { 51, 50, 17, 168, 209, 192, 23, 25, 82 } }, |
| 215 | { { 138, 31, 36, 171, 27, 166, 38, 44, 229 }, |
| 216 | { 67, 87, 58, 169, 82, 115, 26, 59, 179 }, |
| 217 | { 63, 59, 90, 180, 59, 166, 93, 73, 154 }, |
| 218 | { 40, 40, 21, 116, 143, 209, 34, 39, 175 }, |
| 219 | { 47, 15, 16, 183, 34, 223, 49, 45, 183 }, |
| 220 | { 46, 17, 33, 183, 6, 98, 15, 32, 183 }, |
| 221 | { 57, 46, 22, 24, 128, 1, 54, 17, 37 }, |
| 222 | { 65, 32, 73, 115, 28, 128, 23, 128, 205 }, |
| 223 | { 40, 3, 9, 115, 51, 192, 18, 6, 223 }, |
| 224 | { 87, 37, 9, 115, 59, 77, 64, 21, 47 } }, |
| 225 | { { 104, 55, 44, 218, 9, 54, 53, 130, 226 }, |
| 226 | { 64, 90, 70, 205, 40, 41, 23, 26, 57 }, |
| 227 | { 54, 57, 112, 184, 5, 41, 38, 166, 213 }, |
| 228 | { 30, 34, 26, 133, 152, 116, 10, 32, 134 }, |
| 229 | { 39, 19, 53, 221, 26, 114, 32, 73, 255 }, |
| 230 | { 31, 9, 65, 234, 2, 15, 1, 118, 73 }, |
| 231 | { 75, 32, 12, 51, 192, 255, 160, 43, 51 }, |
| 232 | { 88, 31, 35, 67, 102, 85, 55, 186, 85 }, |
| 233 | { 56, 21, 23, 111, 59, 205, 45, 37, 192 }, |
| 234 | { 55, 38, 70, 124, 73, 102, 1, 34, 98 } }, |
| 235 | { { 125, 98, 42, 88, 104, 85, 117, 175, 82 }, |
| 236 | { 95, 84, 53, 89, 128, 100, 113, 101, 45 }, |
| 237 | { 75, 79, 123, 47, 51, 128, 81, 171, 1 }, |
| 238 | { 57, 17, 5, 71, 102, 57, 53, 41, 49 }, |
| 239 | { 38, 33, 13, 121, 57, 73, 26, 1, 85 }, |
| 240 | { 41, 10, 67, 138, 77, 110, 90, 47, 114 }, |
| 241 | { 115, 21, 2, 10, 102, 255, 166, 23, 6 }, |
| 242 | { 101, 29, 16, 10, 85, 128, 101, 196, 26 }, |
| 243 | { 57, 18, 10, 102, 102, 213, 34, 20, 43 }, |
| 244 | { 117, 20, 15, 36, 163, 128, 68, 1, 26 } }, |
| 245 | { { 102, 61, 71, 37, 34, 53, 31, 243, 192 }, |
| 246 | { 69, 60, 71, 38, 73, 119, 28, 222, 37 }, |
| 247 | { 68, 45, 128, 34, 1, 47, 11, 245, 171 }, |
| 248 | { 62, 17, 19, 70, 146, 85, 55, 62, 70 }, |
| 249 | { 37, 43, 37, 154, 100, 163, 85, 160, 1 }, |
| 250 | { 63, 9, 92, 136, 28, 64, 32, 201, 85 }, |
| 251 | { 75, 15, 9, 9, 64, 255, 184, 119, 16 }, |
| 252 | { 86, 6, 28, 5, 64, 255, 25, 248, 1 }, |
| 253 | { 56, 8, 17, 132, 137, 255, 55, 116, 128 }, |
| 254 | { 58, 15, 20, 82, 135, 57, 26, 121, 40 } }, |
| 255 | { { 164, 50, 31, 137, 154, 133, 25, 35, 218 }, |
| 256 | { 51, 103, 44, 131, 131, 123, 31, 6, 158 }, |
| 257 | { 86, 40, 64, 135, 148, 224, 45, 183, 128 }, |
| 258 | { 22, 26, 17, 131, 240, 154, 14, 1, 209 }, |
| 259 | { 45, 16, 21, 91, 64, 222, 7, 1, 197 }, |
| 260 | { 56, 21, 39, 155, 60, 138, 23, 102, 213 }, |
| 261 | { 83, 12, 13, 54, 192, 255, 68, 47, 28 }, |
| 262 | { 85, 26, 85, 85, 128, 128, 32, 146, 171 }, |
| 263 | { 18, 11, 7, 63, 144, 171, 4, 4, 246 }, |
| 264 | { 35, 27, 10, 146, 174, 171, 12, 26, 128 } }, |
| 265 | { { 190, 80, 35, 99, 180, 80, 126, 54, 45 }, |
| 266 | { 85, 126, 47, 87, 176, 51, 41, 20, 32 }, |
| 267 | { 101, 75, 128, 139, 118, 146, 116, 128, 85 }, |
| 268 | { 56, 41, 15, 176, 236, 85, 37, 9, 62 }, |
| 269 | { 71, 30, 17, 119, 118, 255, 17, 18, 138 }, |
| 270 | { 101, 38, 60, 138, 55, 70, 43, 26, 142 }, |
| 271 | { 146, 36, 19, 30, 171, 255, 97, 27, 20 }, |
| 272 | { 138, 45, 61, 62, 219, 1, 81, 188, 64 }, |
| 273 | { 32, 41, 20, 117, 151, 142, 20, 21, 163 }, |
| 274 | { 112, 19, 12, 61, 195, 128, 48, 4, 24 } } |
| 275 | }; |
| 276 | |
| 277 | void VP8ResetProba(VP8Proba* const proba) { |
| 278 | memset(proba->segments_, 255u, sizeof(proba->segments_)); |
Vikas Arora | 8b72022 | 2014-01-02 16:48:02 -0800 | [diff] [blame] | 279 | // proba->bands_[][] is initialized later |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 280 | } |
| 281 | |
Vikas Arora | af51b94 | 2014-08-28 10:51:12 -0700 | [diff] [blame] | 282 | static void ParseIntraMode(VP8BitReader* const br, |
| 283 | VP8Decoder* const dec, int mb_x) { |
| 284 | uint8_t* const top = dec->intra_t_ + 4 * mb_x; |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 285 | uint8_t* const left = dec->intra_l_; |
Vikas Arora | af51b94 | 2014-08-28 10:51:12 -0700 | [diff] [blame] | 286 | VP8MBData* const block = dec->mb_data_ + mb_x; |
| 287 | |
| 288 | // Note: we don't save segment map (yet), as we don't expect |
| 289 | // to decode more than 1 keyframe. |
| 290 | if (dec->segment_hdr_.update_map_) { |
| 291 | // Hardcoded tree parsing |
| 292 | block->segment_ = !VP8GetBit(br, dec->proba_.segments_[0]) |
| 293 | ? VP8GetBit(br, dec->proba_.segments_[1]) |
| 294 | : 2 + VP8GetBit(br, dec->proba_.segments_[2]); |
| 295 | } else { |
| 296 | block->segment_ = 0; // default for intra |
| 297 | } |
| 298 | if (dec->use_skip_proba_) block->skip_ = VP8GetBit(br, dec->skip_p_); |
Vikas Arora | 8b72022 | 2014-01-02 16:48:02 -0800 | [diff] [blame] | 299 | |
| 300 | block->is_i4x4_ = !VP8GetBit(br, 145); // decide for B_PRED first |
| 301 | if (!block->is_i4x4_) { |
| 302 | // Hardcoded 16x16 intra-mode decision tree. |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 303 | const int ymode = |
| 304 | VP8GetBit(br, 156) ? (VP8GetBit(br, 128) ? TM_PRED : H_PRED) |
| 305 | : (VP8GetBit(br, 163) ? V_PRED : DC_PRED); |
Vikas Arora | 8b72022 | 2014-01-02 16:48:02 -0800 | [diff] [blame] | 306 | block->imodes_[0] = ymode; |
| 307 | memset(top, ymode, 4 * sizeof(*top)); |
| 308 | memset(left, ymode, 4 * sizeof(*left)); |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 309 | } else { |
Vikas Arora | 8b72022 | 2014-01-02 16:48:02 -0800 | [diff] [blame] | 310 | uint8_t* modes = block->imodes_; |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 311 | int y; |
| 312 | for (y = 0; y < 4; ++y) { |
| 313 | int ymode = left[y]; |
| 314 | int x; |
| 315 | for (x = 0; x < 4; ++x) { |
| 316 | const uint8_t* const prob = kBModesProba[top[x]][ymode]; |
| 317 | #ifdef USE_GENERIC_TREE |
| 318 | // Generic tree-parsing |
Vikas Arora | 8b72022 | 2014-01-02 16:48:02 -0800 | [diff] [blame] | 319 | int i = kYModesIntra4[VP8GetBit(br, prob[0])]; |
| 320 | while (i > 0) { |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 321 | i = kYModesIntra4[2 * i + VP8GetBit(br, prob[i])]; |
Vikas Arora | 8b72022 | 2014-01-02 16:48:02 -0800 | [diff] [blame] | 322 | } |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 323 | ymode = -i; |
| 324 | #else |
| 325 | // Hardcoded tree parsing |
| 326 | ymode = !VP8GetBit(br, prob[0]) ? B_DC_PRED : |
| 327 | !VP8GetBit(br, prob[1]) ? B_TM_PRED : |
| 328 | !VP8GetBit(br, prob[2]) ? B_VE_PRED : |
| 329 | !VP8GetBit(br, prob[3]) ? |
| 330 | (!VP8GetBit(br, prob[4]) ? B_HE_PRED : |
| 331 | (!VP8GetBit(br, prob[5]) ? B_RD_PRED : B_VR_PRED)) : |
| 332 | (!VP8GetBit(br, prob[6]) ? B_LD_PRED : |
| 333 | (!VP8GetBit(br, prob[7]) ? B_VL_PRED : |
| 334 | (!VP8GetBit(br, prob[8]) ? B_HD_PRED : B_HU_PRED))); |
| 335 | #endif // USE_GENERIC_TREE |
| 336 | top[x] = ymode; |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 337 | } |
Vikas Arora | 8b72022 | 2014-01-02 16:48:02 -0800 | [diff] [blame] | 338 | memcpy(modes, top, 4 * sizeof(*top)); |
| 339 | modes += 4; |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 340 | left[y] = ymode; |
| 341 | } |
| 342 | } |
| 343 | // Hardcoded UVMode decision tree |
Vikas Arora | 8b72022 | 2014-01-02 16:48:02 -0800 | [diff] [blame] | 344 | block->uvmode_ = !VP8GetBit(br, 142) ? DC_PRED |
| 345 | : !VP8GetBit(br, 114) ? V_PRED |
| 346 | : VP8GetBit(br, 183) ? TM_PRED : H_PRED; |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 347 | } |
| 348 | |
Vikas Arora | af51b94 | 2014-08-28 10:51:12 -0700 | [diff] [blame] | 349 | int VP8ParseIntraModeRow(VP8BitReader* const br, VP8Decoder* const dec) { |
| 350 | int mb_x; |
| 351 | for (mb_x = 0; mb_x < dec->mb_w_; ++mb_x) { |
| 352 | ParseIntraMode(br, dec, mb_x); |
| 353 | } |
| 354 | return !dec->br_.eof_; |
| 355 | } |
| 356 | |
Vikas Arora | a241572 | 2012-08-09 16:18:58 -0700 | [diff] [blame] | 357 | //------------------------------------------------------------------------------ |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 358 | // Paragraph 13 |
| 359 | |
| 360 | static const uint8_t |
| 361 | CoeffsUpdateProba[NUM_TYPES][NUM_BANDS][NUM_CTX][NUM_PROBAS] = { |
| 362 | { { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 363 | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 364 | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
| 365 | }, |
| 366 | { { 176, 246, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 367 | { 223, 241, 252, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 368 | { 249, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 } |
| 369 | }, |
| 370 | { { 255, 244, 252, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 371 | { 234, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 372 | { 253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
| 373 | }, |
| 374 | { { 255, 246, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 375 | { 239, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 376 | { 254, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 } |
| 377 | }, |
| 378 | { { 255, 248, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 379 | { 251, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 380 | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
| 381 | }, |
| 382 | { { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 383 | { 251, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 384 | { 254, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 } |
| 385 | }, |
| 386 | { { 255, 254, 253, 255, 254, 255, 255, 255, 255, 255, 255 }, |
| 387 | { 250, 255, 254, 255, 254, 255, 255, 255, 255, 255, 255 }, |
| 388 | { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
| 389 | }, |
| 390 | { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 391 | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 392 | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
| 393 | } |
| 394 | }, |
| 395 | { { { 217, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 396 | { 225, 252, 241, 253, 255, 255, 254, 255, 255, 255, 255 }, |
| 397 | { 234, 250, 241, 250, 253, 255, 253, 254, 255, 255, 255 } |
| 398 | }, |
| 399 | { { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 400 | { 223, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 401 | { 238, 253, 254, 254, 255, 255, 255, 255, 255, 255, 255 } |
| 402 | }, |
| 403 | { { 255, 248, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 404 | { 249, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 405 | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
| 406 | }, |
| 407 | { { 255, 253, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 408 | { 247, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 409 | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
| 410 | }, |
| 411 | { { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 412 | { 252, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 413 | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
| 414 | }, |
| 415 | { { 255, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 416 | { 253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 417 | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
| 418 | }, |
| 419 | { { 255, 254, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 420 | { 250, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 421 | { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
| 422 | }, |
| 423 | { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 424 | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 425 | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
| 426 | } |
| 427 | }, |
| 428 | { { { 186, 251, 250, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 429 | { 234, 251, 244, 254, 255, 255, 255, 255, 255, 255, 255 }, |
| 430 | { 251, 251, 243, 253, 254, 255, 254, 255, 255, 255, 255 } |
| 431 | }, |
| 432 | { { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 433 | { 236, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 434 | { 251, 253, 253, 254, 254, 255, 255, 255, 255, 255, 255 } |
| 435 | }, |
| 436 | { { 255, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 437 | { 254, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 438 | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
| 439 | }, |
| 440 | { { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 441 | { 254, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 442 | { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
| 443 | }, |
| 444 | { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 445 | { 254, 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 | { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 453 | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 454 | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
| 455 | }, |
| 456 | { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 457 | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 458 | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
| 459 | } |
| 460 | }, |
| 461 | { { { 248, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 462 | { 250, 254, 252, 254, 255, 255, 255, 255, 255, 255, 255 }, |
| 463 | { 248, 254, 249, 253, 255, 255, 255, 255, 255, 255, 255 } |
| 464 | }, |
| 465 | { { 255, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 466 | { 246, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 467 | { 252, 254, 251, 254, 254, 255, 255, 255, 255, 255, 255 } |
| 468 | }, |
| 469 | { { 255, 254, 252, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 470 | { 248, 254, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 471 | { 253, 255, 254, 254, 255, 255, 255, 255, 255, 255, 255 } |
| 472 | }, |
| 473 | { { 255, 251, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 474 | { 245, 251, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 475 | { 253, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 } |
| 476 | }, |
| 477 | { { 255, 251, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 478 | { 252, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 479 | { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
| 480 | }, |
| 481 | { { 255, 252, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 482 | { 249, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 483 | { 255, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 } |
| 484 | }, |
| 485 | { { 255, 255, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 486 | { 250, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 487 | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
| 488 | }, |
| 489 | { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 490 | { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, |
| 491 | { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } |
| 492 | } |
| 493 | } |
| 494 | }; |
| 495 | |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 496 | // Paragraph 9.9 |
| 497 | void VP8ParseProba(VP8BitReader* const br, VP8Decoder* const dec) { |
| 498 | VP8Proba* const proba = &dec->proba_; |
| 499 | int t, b, c, p; |
| 500 | for (t = 0; t < NUM_TYPES; ++t) { |
| 501 | for (b = 0; b < NUM_BANDS; ++b) { |
| 502 | for (c = 0; c < NUM_CTX; ++c) { |
| 503 | for (p = 0; p < NUM_PROBAS; ++p) { |
Vikas Arora | 8b72022 | 2014-01-02 16:48:02 -0800 | [diff] [blame] | 504 | const int v = VP8GetBit(br, CoeffsUpdateProba[t][b][c][p]) ? |
| 505 | VP8GetValue(br, 8) : CoeffsProba0[t][b][c][p]; |
| 506 | proba->bands_[t][b].probas_[c][p] = v; |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 507 | } |
| 508 | } |
| 509 | } |
| 510 | } |
| 511 | dec->use_skip_proba_ = VP8Get(br); |
| 512 | if (dec->use_skip_proba_) { |
| 513 | dec->skip_p_ = VP8GetValue(br, 8); |
| 514 | } |
Eric Hassold | 9aea642 | 2011-01-04 17:22:46 -0800 | [diff] [blame] | 515 | } |
| 516 | |