2 * VP8 compatible video decoder
4 * Copyright (C) 2010 David Conrad
5 * Copyright (C) 2010 Ronald S. Bultje
7 * This file is part of FFmpeg.
9 * FFmpeg is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * FFmpeg is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with FFmpeg; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24 // TODO: move these #define and enum to a better header...
26 #define VP8_MAX_QUANT 127
47 // used to signal 4x4 intra pred in luma MBs
51 VP8_MVMODE_NEAREST = MODE_I4x4 + 1,
58 enum inter_splitmvmode {
59 VP8_SPLITMVMODE_16x8 = 0, ///< 2 16x8 blocks (vertical)
60 VP8_SPLITMVMODE_8x16, ///< 2 8x16 blocks (horizontal)
61 VP8_SPLITMVMODE_8x8, ///< 2x2 blocks of 8x8px each
62 VP8_SPLITMVMODE_4x4, ///< 4x4 blocks of 4x4px each
63 VP8_SPLITMVMODE_NONE, ///< (only used in prediction) no split MVs
66 static const uint8_t vp8_pred4x4_mode[] =
68 [DC_PRED8x8] = DC_PRED,
69 [VERT_PRED8x8] = VERT_PRED,
70 [HOR_PRED8x8] = HOR_PRED,
71 [PLANE_PRED8x8] = TM_VP8_PRED,
74 static const int8_t vp8_pred16x16_tree_intra[4][2] =
76 { -MODE_I4x4, 1 }, // '0'
78 { -DC_PRED8x8, -VERT_PRED8x8 }, // '100', '101'
79 { -HOR_PRED8x8, -PLANE_PRED8x8 }, // '110', '111'
82 static const int8_t vp8_pred16x16_tree_inter[4][2] =
84 { -DC_PRED8x8, 1 }, // '0'
86 { -VERT_PRED8x8, -HOR_PRED8x8 }, // '100', '101'
87 { -PLANE_PRED8x8, -MODE_I4x4 }, // '110', '111'
90 static const int vp8_mode_contexts[6][4] = {
95 { 159, 134, 128, 34 },
96 { 234, 188, 128, 28 },
99 static const uint8_t vp8_mbsplits[5][16] = {
100 { 0, 0, 0, 0, 0, 0, 0, 0,
101 1, 1, 1, 1, 1, 1, 1, 1 },
102 { 0, 0, 1, 1, 0, 0, 1, 1,
103 0, 0, 1, 1, 0, 0, 1, 1 },
104 { 0, 0, 1, 1, 0, 0, 1, 1,
105 2, 2, 3, 3, 2, 2, 3, 3 },
106 { 0, 1, 2, 3, 4, 5, 6, 7,
107 8, 9, 10, 11, 12, 13, 14, 15 },
108 { 0, 0, 0, 0, 0, 0, 0, 0,
109 0, 0, 0, 0, 0, 0, 0, 0 }
112 static const uint8_t vp8_mbfirstidx[4][16] = {
113 { 0, 8 }, { 0, 2 }, { 0, 2, 8, 10 },
114 { 0, 1, 2, 3, 4, 5, 6, 7,
115 8, 9, 10, 11, 12, 13, 14, 15 }
118 static const int8_t vp8_mbsplit_tree[3][2] = {
119 { -VP8_SPLITMVMODE_4x4, 1 }, // '0' - 16 individual MVs
120 { -VP8_SPLITMVMODE_8x8, 2 }, // '10' - quarter-based MVs
121 { -VP8_SPLITMVMODE_16x8, // '110' - top/bottom MVs
122 -VP8_SPLITMVMODE_8x16 } // '111' - left/right MVs
124 static const uint8_t vp8_mbsplit_count[4] = { 2, 2, 4, 16 };
125 static const uint8_t vp8_mbsplit_prob[3] = { 110, 111, 150 };
127 static const uint8_t vp8_submv_prob[5][3] = {
135 static const uint8_t vp8_pred16x16_prob_intra[4] = { 145, 156, 163, 128 };
136 static const uint8_t vp8_pred16x16_prob_inter[4] = { 112, 86, 140, 37 };
138 static const int8_t vp8_pred4x4_tree[9][2] =
140 { -DC_PRED, 1 }, // '0'
141 { -TM_VP8_PRED, 2 }, // '10'
142 { -VERT_PRED, 3 }, // '110'
144 { -HOR_PRED, 5 }, // '11100'
145 { -DIAG_DOWN_RIGHT_PRED, -VERT_RIGHT_PRED }, // '111010', '111011'
146 { -DIAG_DOWN_LEFT_PRED, 7 }, // '11110'
147 { -VERT_LEFT_PRED, 8 }, // '111110'
148 { -HOR_DOWN_PRED, -HOR_UP_PRED }, // '1111110', '1111111'
151 static const int8_t vp8_pred8x8c_tree[3][2] =
153 { -DC_PRED8x8, 1 }, // '0'
154 { -VERT_PRED8x8, 2 }, // '10
155 { -HOR_PRED8x8, -PLANE_PRED8x8 }, // '110', '111'
158 static const uint8_t vp8_pred8x8c_prob_intra[3] = { 142, 114, 183 };
159 static const uint8_t vp8_pred8x8c_prob_inter[3] = { 162, 101, 204 };
161 static const uint8_t vp8_pred4x4_prob_inter[9] =
163 120, 90, 79, 133, 87, 85, 80, 111, 151
166 static const uint8_t vp8_pred4x4_prob_intra[10][10][9] =
169 { 39, 53, 200, 87, 26, 21, 43, 232, 171 },
170 { 56, 34, 51, 104, 114, 102, 29, 93, 77 },
171 { 88, 88, 147, 150, 42, 46, 45, 196, 205 },
172 { 107, 54, 32, 26, 51, 1, 81, 43, 31 },
173 { 39, 28, 85, 171, 58, 165, 90, 98, 64 },
174 { 34, 22, 116, 206, 23, 34, 43, 166, 73 },
175 { 34, 19, 21, 102, 132, 188, 16, 76, 124 },
176 { 68, 25, 106, 22, 64, 171, 36, 225, 114 },
177 { 62, 18, 78, 95, 85, 57, 50, 48, 51 },
178 { 43, 97, 183, 117, 85, 38, 35, 179, 61 },
181 { 112, 113, 77, 85, 179, 255, 38, 120, 114 },
182 { 40, 42, 1, 196, 245, 209, 10, 25, 109 },
183 { 193, 101, 35, 159, 215, 111, 89, 46, 111 },
184 { 100, 80, 8, 43, 154, 1, 51, 26, 71 },
185 { 88, 43, 29, 140, 166, 213, 37, 43, 154 },
186 { 61, 63, 30, 155, 67, 45, 68, 1, 209 },
187 { 41, 40, 5, 102, 211, 183, 4, 1, 221 },
188 { 142, 78, 78, 16, 255, 128, 34, 197, 171 },
189 { 51, 50, 17, 168, 209, 192, 23, 25, 82 },
190 { 60, 148, 31, 172, 219, 228, 21, 18, 111 },
193 { 175, 69, 143, 80, 85, 82, 72, 155, 103 },
194 { 56, 58, 10, 171, 218, 189, 17, 13, 152 },
195 { 231, 120, 48, 89, 115, 113, 120, 152, 112 },
196 { 144, 71, 10, 38, 171, 213, 144, 34, 26 },
197 { 114, 26, 17, 163, 44, 195, 21, 10, 173 },
198 { 121, 24, 80, 195, 26, 62, 44, 64, 85 },
199 { 63, 20, 8, 114, 114, 208, 12, 9, 226 },
200 { 170, 46, 55, 19, 136, 160, 33, 206, 71 },
201 { 81, 40, 11, 96, 182, 84, 29, 16, 36 },
202 { 152, 179, 64, 126, 170, 118, 46, 70, 95 },
205 { 75, 79, 123, 47, 51, 128, 81, 171, 1 },
206 { 57, 17, 5, 71, 102, 57, 53, 41, 49 },
207 { 125, 98, 42, 88, 104, 85, 117, 175, 82 },
208 { 115, 21, 2, 10, 102, 255, 166, 23, 6 },
209 { 38, 33, 13, 121, 57, 73, 26, 1, 85 },
210 { 41, 10, 67, 138, 77, 110, 90, 47, 114 },
211 { 57, 18, 10, 102, 102, 213, 34, 20, 43 },
212 { 101, 29, 16, 10, 85, 128, 101, 196, 26 },
213 { 117, 20, 15, 36, 163, 128, 68, 1, 26 },
214 { 95, 84, 53, 89, 128, 100, 113, 101, 45 },
217 { 63, 59, 90, 180, 59, 166, 93, 73, 154 },
218 { 40, 40, 21, 116, 143, 209, 34, 39, 175 },
219 { 138, 31, 36, 171, 27, 166, 38, 44, 229 },
220 { 57, 46, 22, 24, 128, 1, 54, 17, 37 },
221 { 47, 15, 16, 183, 34, 223, 49, 45, 183 },
222 { 46, 17, 33, 183, 6, 98, 15, 32, 183 },
223 { 40, 3, 9, 115, 51, 192, 18, 6, 223 },
224 { 65, 32, 73, 115, 28, 128, 23, 128, 205 },
225 { 87, 37, 9, 115, 59, 77, 64, 21, 47 },
226 { 67, 87, 58, 169, 82, 115, 26, 59, 179 },
229 { 54, 57, 112, 184, 5, 41, 38, 166, 213 },
230 { 30, 34, 26, 133, 152, 116, 10, 32, 134 },
231 { 104, 55, 44, 218, 9, 54, 53, 130, 226 },
232 { 75, 32, 12, 51, 192, 255, 160, 43, 51 },
233 { 39, 19, 53, 221, 26, 114, 32, 73, 255 },
234 { 31, 9, 65, 234, 2, 15, 1, 118, 73 },
235 { 56, 21, 23, 111, 59, 205, 45, 37, 192 },
236 { 88, 31, 35, 67, 102, 85, 55, 186, 85 },
237 { 55, 38, 70, 124, 73, 102, 1, 34, 98 },
238 { 64, 90, 70, 205, 40, 41, 23, 26, 57 },
241 { 86, 40, 64, 135, 148, 224, 45, 183, 128 },
242 { 22, 26, 17, 131, 240, 154, 14, 1, 209 },
243 { 164, 50, 31, 137, 154, 133, 25, 35, 218 },
244 { 83, 12, 13, 54, 192, 255, 68, 47, 28 },
245 { 45, 16, 21, 91, 64, 222, 7, 1, 197 },
246 { 56, 21, 39, 155, 60, 138, 23, 102, 213 },
247 { 18, 11, 7, 63, 144, 171, 4, 4, 246 },
248 { 85, 26, 85, 85, 128, 128, 32, 146, 171 },
249 { 35, 27, 10, 146, 174, 171, 12, 26, 128 },
250 { 51, 103, 44, 131, 131, 123, 31, 6, 158 },
253 { 68, 45, 128, 34, 1, 47, 11, 245, 171 },
254 { 62, 17, 19, 70, 146, 85, 55, 62, 70 },
255 { 102, 61, 71, 37, 34, 53, 31, 243, 192 },
256 { 75, 15, 9, 9, 64, 255, 184, 119, 16 },
257 { 37, 43, 37, 154, 100, 163, 85, 160, 1 },
258 { 63, 9, 92, 136, 28, 64, 32, 201, 85 },
259 { 56, 8, 17, 132, 137, 255, 55, 116, 128 },
260 { 86, 6, 28, 5, 64, 255, 25, 248, 1 },
261 { 58, 15, 20, 82, 135, 57, 26, 121, 40 },
262 { 69, 60, 71, 38, 73, 119, 28, 222, 37 },
265 { 101, 75, 128, 139, 118, 146, 116, 128, 85 },
266 { 56, 41, 15, 176, 236, 85, 37, 9, 62 },
267 { 190, 80, 35, 99, 180, 80, 126, 54, 45 },
268 { 146, 36, 19, 30, 171, 255, 97, 27, 20 },
269 { 71, 30, 17, 119, 118, 255, 17, 18, 138 },
270 { 101, 38, 60, 138, 55, 70, 43, 26, 142 },
271 { 32, 41, 20, 117, 151, 142, 20, 21, 163 },
272 { 138, 45, 61, 62, 219, 1, 81, 188, 64 },
273 { 112, 19, 12, 61, 195, 128, 48, 4, 24 },
274 { 85, 126, 47, 87, 176, 51, 41, 20, 32 },
277 { 66, 102, 167, 99, 74, 62, 40, 234, 128 },
278 { 41, 53, 9, 178, 241, 141, 26, 8, 107 },
279 { 134, 183, 89, 137, 98, 101, 106, 165, 148 },
280 { 104, 79, 12, 27, 217, 255, 87, 17, 7 },
281 { 74, 43, 26, 146, 73, 166, 49, 23, 157 },
282 { 65, 38, 105, 160, 51, 52, 31, 115, 128 },
283 { 47, 41, 14, 110, 182, 183, 21, 17, 194 },
284 { 87, 68, 71, 44, 114, 51, 15, 186, 23 },
285 { 66, 45, 25, 102, 197, 189, 23, 18, 22 },
286 { 72, 187, 100, 130, 157, 111, 32, 75, 80 },
290 static const int8_t vp8_segmentid_tree[][2] =
293 { -0, -1 }, // '00', '01'
294 { -2, -3 }, // '10', '11'
297 static const uint8_t vp8_coeff_band[16] =
299 0, 1, 2, 3, 6, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6, 7
302 static const uint8_t vp8_dct_cat1_prob[] = { 159, 0 };
303 static const uint8_t vp8_dct_cat2_prob[] = { 165, 145, 0 };
304 static const uint8_t vp8_dct_cat3_prob[] = { 173, 148, 140, 0 };
305 static const uint8_t vp8_dct_cat4_prob[] = { 176, 155, 140, 135, 0 };
306 static const uint8_t vp8_dct_cat5_prob[] = { 180, 157, 141, 134, 130, 0 };
307 static const uint8_t vp8_dct_cat6_prob[] = { 254, 254, 243, 230, 196, 177, 153, 140, 133, 130, 129, 0 };
309 // only used for cat3 and above; cat 1 and 2 are referenced directly
310 static const uint8_t * const vp8_dct_cat_prob[] =
318 static const uint8_t vp8_token_default_probs[4][8][3][NUM_DCT_TOKENS-1] =
322 { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
323 { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
324 { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
327 { 253, 136, 254, 255, 228, 219, 128, 128, 128, 128, 128 },
328 { 189, 129, 242, 255, 227, 213, 255, 219, 128, 128, 128 },
329 { 106, 126, 227, 252, 214, 209, 255, 255, 128, 128, 128 },
332 { 1, 98, 248, 255, 236, 226, 255, 255, 128, 128, 128 },
333 { 181, 133, 238, 254, 221, 234, 255, 154, 128, 128, 128 },
334 { 78, 134, 202, 247, 198, 180, 255, 219, 128, 128, 128 },
337 { 1, 185, 249, 255, 243, 255, 128, 128, 128, 128, 128 },
338 { 184, 150, 247, 255, 236, 224, 128, 128, 128, 128, 128 },
339 { 77, 110, 216, 255, 236, 230, 128, 128, 128, 128, 128 },
342 { 1, 101, 251, 255, 241, 255, 128, 128, 128, 128, 128 },
343 { 170, 139, 241, 252, 236, 209, 255, 255, 128, 128, 128 },
344 { 37, 116, 196, 243, 228, 255, 255, 255, 128, 128, 128 },
347 { 1, 204, 254, 255, 245, 255, 128, 128, 128, 128, 128 },
348 { 207, 160, 250, 255, 238, 128, 128, 128, 128, 128, 128 },
349 { 102, 103, 231, 255, 211, 171, 128, 128, 128, 128, 128 },
352 { 1, 152, 252, 255, 240, 255, 128, 128, 128, 128, 128 },
353 { 177, 135, 243, 255, 234, 225, 128, 128, 128, 128, 128 },
354 { 80, 129, 211, 255, 194, 224, 128, 128, 128, 128, 128 },
357 { 1, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
358 { 246, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
359 { 255, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
364 { 198, 35, 237, 223, 193, 187, 162, 160, 145, 155, 62 },
365 { 131, 45, 198, 221, 172, 176, 220, 157, 252, 221, 1 },
366 { 68, 47, 146, 208, 149, 167, 221, 162, 255, 223, 128 },
369 { 1, 149, 241, 255, 221, 224, 255, 255, 128, 128, 128 },
370 { 184, 141, 234, 253, 222, 220, 255, 199, 128, 128, 128 },
371 { 81, 99, 181, 242, 176, 190, 249, 202, 255, 255, 128 },
374 { 1, 129, 232, 253, 214, 197, 242, 196, 255, 255, 128 },
375 { 99, 121, 210, 250, 201, 198, 255, 202, 128, 128, 128 },
376 { 23, 91, 163, 242, 170, 187, 247, 210, 255, 255, 128 },
379 { 1, 200, 246, 255, 234, 255, 128, 128, 128, 128, 128 },
380 { 109, 178, 241, 255, 231, 245, 255, 255, 128, 128, 128 },
381 { 44, 130, 201, 253, 205, 192, 255, 255, 128, 128, 128 },
384 { 1, 132, 239, 251, 219, 209, 255, 165, 128, 128, 128 },
385 { 94, 136, 225, 251, 218, 190, 255, 255, 128, 128, 128 },
386 { 22, 100, 174, 245, 186, 161, 255, 199, 128, 128, 128 },
389 { 1, 182, 249, 255, 232, 235, 128, 128, 128, 128, 128 },
390 { 124, 143, 241, 255, 227, 234, 128, 128, 128, 128, 128 },
391 { 35, 77, 181, 251, 193, 211, 255, 205, 128, 128, 128 },
394 { 1, 157, 247, 255, 236, 231, 255, 255, 128, 128, 128 },
395 { 121, 141, 235, 255, 225, 227, 255, 255, 128, 128, 128 },
396 { 45, 99, 188, 251, 195, 217, 255, 224, 128, 128, 128 },
399 { 1, 1, 251, 255, 213, 255, 128, 128, 128, 128, 128 },
400 { 203, 1, 248, 255, 255, 128, 128, 128, 128, 128, 128 },
401 { 137, 1, 177, 255, 224, 255, 128, 128, 128, 128, 128 },
406 { 253, 9, 248, 251, 207, 208, 255, 192, 128, 128, 128 },
407 { 175, 13, 224, 243, 193, 185, 249, 198, 255, 255, 128 },
408 { 73, 17, 171, 221, 161, 179, 236, 167, 255, 234, 128 },
411 { 1, 95, 247, 253, 212, 183, 255, 255, 128, 128, 128 },
412 { 239, 90, 244, 250, 211, 209, 255, 255, 128, 128, 128 },
413 { 155, 77, 195, 248, 188, 195, 255, 255, 128, 128, 128 },
416 { 1, 24, 239, 251, 218, 219, 255, 205, 128, 128, 128 },
417 { 201, 51, 219, 255, 196, 186, 128, 128, 128, 128, 128 },
418 { 69, 46, 190, 239, 201, 218, 255, 228, 128, 128, 128 },
421 { 1, 191, 251, 255, 255, 128, 128, 128, 128, 128, 128 },
422 { 223, 165, 249, 255, 213, 255, 128, 128, 128, 128, 128 },
423 { 141, 124, 248, 255, 255, 128, 128, 128, 128, 128, 128 },
426 { 1, 16, 248, 255, 255, 128, 128, 128, 128, 128, 128 },
427 { 190, 36, 230, 255, 236, 255, 128, 128, 128, 128, 128 },
428 { 149, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
431 { 1, 226, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
432 { 247, 192, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
433 { 240, 128, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
436 { 1, 134, 252, 255, 255, 128, 128, 128, 128, 128, 128 },
437 { 213, 62, 250, 255, 255, 128, 128, 128, 128, 128, 128 },
438 { 55, 93, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
441 { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
442 { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
443 { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
448 { 202, 24, 213, 235, 186, 191, 220, 160, 240, 175, 255 },
449 { 126, 38, 182, 232, 169, 184, 228, 174, 255, 187, 128 },
450 { 61, 46, 138, 219, 151, 178, 240, 170, 255, 216, 128 },
453 { 1, 112, 230, 250, 199, 191, 247, 159, 255, 255, 128 },
454 { 166, 109, 228, 252, 211, 215, 255, 174, 128, 128, 128 },
455 { 39, 77, 162, 232, 172, 180, 245, 178, 255, 255, 128 },
458 { 1, 52, 220, 246, 198, 199, 249, 220, 255, 255, 128 },
459 { 124, 74, 191, 243, 183, 193, 250, 221, 255, 255, 128 },
460 { 24, 71, 130, 219, 154, 170, 243, 182, 255, 255, 128 },
463 { 1, 182, 225, 249, 219, 240, 255, 224, 128, 128, 128 },
464 { 149, 150, 226, 252, 216, 205, 255, 171, 128, 128, 128 },
465 { 28, 108, 170, 242, 183, 194, 254, 223, 255, 255, 128 },
468 { 1, 81, 230, 252, 204, 203, 255, 192, 128, 128, 128 },
469 { 123, 102, 209, 247, 188, 196, 255, 233, 128, 128, 128 },
470 { 20, 95, 153, 243, 164, 173, 255, 203, 128, 128, 128 },
473 { 1, 222, 248, 255, 216, 213, 128, 128, 128, 128, 128 },
474 { 168, 175, 246, 252, 235, 205, 255, 255, 128, 128, 128 },
475 { 47, 116, 215, 255, 211, 212, 255, 255, 128, 128, 128 },
478 { 1, 121, 236, 253, 212, 214, 255, 255, 128, 128, 128 },
479 { 141, 84, 213, 252, 201, 202, 255, 219, 128, 128, 128 },
480 { 42, 80, 160, 240, 162, 185, 255, 205, 128, 128, 128 },
483 { 1, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
484 { 244, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
485 { 238, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
490 static const uint8_t vp8_token_update_probs[4][8][3][NUM_DCT_TOKENS-1] =
494 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
495 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
496 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
499 { 176, 246, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
500 { 223, 241, 252, 255, 255, 255, 255, 255, 255, 255, 255 },
501 { 249, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
504 { 255, 244, 252, 255, 255, 255, 255, 255, 255, 255, 255 },
505 { 234, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
506 { 253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
509 { 255, 246, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
510 { 239, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
511 { 254, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
514 { 255, 248, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
515 { 251, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
516 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
519 { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
520 { 251, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
521 { 254, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
524 { 255, 254, 253, 255, 254, 255, 255, 255, 255, 255, 255 },
525 { 250, 255, 254, 255, 254, 255, 255, 255, 255, 255, 255 },
526 { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
529 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
530 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
531 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
536 { 217, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
537 { 225, 252, 241, 253, 255, 255, 254, 255, 255, 255, 255 },
538 { 234, 250, 241, 250, 253, 255, 253, 254, 255, 255, 255 },
541 { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
542 { 223, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
543 { 238, 253, 254, 254, 255, 255, 255, 255, 255, 255, 255 },
546 { 255, 248, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
547 { 249, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
548 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
551 { 255, 253, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
552 { 247, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
553 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
556 { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
557 { 252, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
558 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
561 { 255, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
562 { 253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
563 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
566 { 255, 254, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
567 { 250, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
568 { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
571 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
572 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
573 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
578 { 186, 251, 250, 255, 255, 255, 255, 255, 255, 255, 255 },
579 { 234, 251, 244, 254, 255, 255, 255, 255, 255, 255, 255 },
580 { 251, 251, 243, 253, 254, 255, 254, 255, 255, 255, 255 },
583 { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
584 { 236, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
585 { 251, 253, 253, 254, 254, 255, 255, 255, 255, 255, 255 },
588 { 255, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
589 { 254, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
590 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
593 { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
594 { 254, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
595 { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
598 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
599 { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
600 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
603 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
604 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
605 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
608 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
609 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
610 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
613 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
614 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
615 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
620 { 248, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
621 { 250, 254, 252, 254, 255, 255, 255, 255, 255, 255, 255 },
622 { 248, 254, 249, 253, 255, 255, 255, 255, 255, 255, 255 },
625 { 255, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
626 { 246, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
627 { 252, 254, 251, 254, 254, 255, 255, 255, 255, 255, 255 },
630 { 255, 254, 252, 255, 255, 255, 255, 255, 255, 255, 255 },
631 { 248, 254, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
632 { 253, 255, 254, 254, 255, 255, 255, 255, 255, 255, 255 },
635 { 255, 251, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
636 { 245, 251, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
637 { 253, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
640 { 255, 251, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
641 { 252, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
642 { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
645 { 255, 252, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
646 { 249, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
647 { 255, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
650 { 255, 255, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
651 { 250, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
652 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
655 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
656 { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
657 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
662 // fixme: copied from h264data.h
663 static const uint8_t zigzag_scan[16]={
664 0+0*4, 1+0*4, 0+1*4, 0+2*4,
665 1+1*4, 2+0*4, 3+0*4, 2+1*4,
666 1+2*4, 0+3*4, 1+3*4, 2+2*4,
667 3+1*4, 3+2*4, 2+3*4, 3+3*4,
670 static const uint8_t vp8_dc_qlookup[VP8_MAX_QUANT+1] =
672 4, 5, 6, 7, 8, 9, 10, 10, 11, 12, 13, 14, 15, 16, 17, 17,
673 18, 19, 20, 20, 21, 21, 22, 22, 23, 23, 24, 25, 25, 26, 27, 28,
674 29, 30, 31, 32, 33, 34, 35, 36, 37, 37, 38, 39, 40, 41, 42, 43,
675 44, 45, 46, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58,
676 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74,
677 75, 76, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89,
678 91, 93, 95, 96, 98, 100, 101, 102, 104, 106, 108, 110, 112, 114, 116, 118,
679 122, 124, 126, 128, 130, 132, 134, 136, 138, 140, 143, 145, 148, 151, 154, 157,
682 static const uint16_t vp8_ac_qlookup[VP8_MAX_QUANT+1] =
684 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
685 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35,
686 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51,
687 52, 53, 54, 55, 56, 57, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76,
688 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106, 108,
689 110, 112, 114, 116, 119, 122, 125, 128, 131, 134, 137, 140, 143, 146, 149, 152,
690 155, 158, 161, 164, 167, 170, 173, 177, 181, 185, 189, 193, 197, 201, 205, 209,
691 213, 217, 221, 225, 229, 234, 239, 245, 249, 254, 259, 264, 269, 274, 279, 284,
694 static const uint8_t vp8_mv_update_prob[2][19] = {
697 253, 253, 254, 254, 254, 254, 254,
698 254, 254, 254, 254, 254, 250, 250, 252, 254, 254 },
701 245, 253, 254, 254, 254, 254, 254,
702 254, 254, 254, 254, 254, 251, 251, 254, 254, 254 }
705 static const uint8_t vp8_mv_default_prob[2][19] = {
708 225, 146, 172, 147, 214, 39, 156,
709 128, 129, 132, 75, 145, 178, 206, 239, 254, 254 },
712 204, 170, 119, 235, 140, 230, 228,
713 128, 130, 130, 74, 148, 180, 203, 236, 254, 254 }