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_submvmode {
59 VP8_SUBMVMODE_LEFT4X4,
61 VP8_SUBMVMODE_ZERO4X4,
65 enum inter_splitmvmode {
66 VP8_SPLITMVMODE_16x8 = 0, ///< 2 16x8 blocks (vertical)
67 VP8_SPLITMVMODE_8x16, ///< 2 8x16 blocks (horizontal)
68 VP8_SPLITMVMODE_8x8, ///< 2x2 blocks of 8x8px each
69 VP8_SPLITMVMODE_4x4, ///< 4x4 blocks of 4x4px each
70 VP8_SPLITMVMODE_NONE, ///< (only used in prediction) no split MVs
73 static const uint8_t vp8_pred4x4_mode[] =
75 [DC_PRED8x8] = DC_PRED,
76 [VERT_PRED8x8] = VERT_PRED,
77 [HOR_PRED8x8] = HOR_PRED,
78 [PLANE_PRED8x8] = TM_VP8_PRED,
81 static const int8_t vp8_pred16x16_tree_intra[4][2] =
83 { -MODE_I4x4, 1 }, // '0'
85 { -DC_PRED8x8, -VERT_PRED8x8 }, // '100', '101'
86 { -HOR_PRED8x8, -PLANE_PRED8x8 }, // '110', '111'
89 static const int8_t vp8_pred16x16_tree_inter[4][2] =
91 { -DC_PRED8x8, 1 }, // '0'
93 { -VERT_PRED8x8, -HOR_PRED8x8 }, // '100', '101'
94 { -PLANE_PRED8x8, -MODE_I4x4 }, // '110', '111'
97 static const int vp8_mode_contexts[6][4] = {
102 { 159, 134, 128, 34 },
103 { 234, 188, 128, 28 },
106 static const uint8_t vp8_mbsplits[5][16] = {
107 { 0, 0, 0, 0, 0, 0, 0, 0,
108 1, 1, 1, 1, 1, 1, 1, 1 },
109 { 0, 0, 1, 1, 0, 0, 1, 1,
110 0, 0, 1, 1, 0, 0, 1, 1 },
111 { 0, 0, 1, 1, 0, 0, 1, 1,
112 2, 2, 3, 3, 2, 2, 3, 3 },
113 { 0, 1, 2, 3, 4, 5, 6, 7,
114 8, 9, 10, 11, 12, 13, 14, 15 },
115 { 0, 0, 0, 0, 0, 0, 0, 0,
116 0, 0, 0, 0, 0, 0, 0, 0 }
119 static const uint8_t vp8_mbfirstidx[4][16] = {
120 { 0, 8 }, { 0, 2 }, { 0, 2, 8, 10 },
121 { 0, 1, 2, 3, 4, 5, 6, 7,
122 8, 9, 10, 11, 12, 13, 14, 15 }
125 static const int8_t vp8_mbsplit_tree[3][2] = {
126 { -VP8_SPLITMVMODE_4x4, 1 }, // '0' - 16 individual MVs
127 { -VP8_SPLITMVMODE_8x8, 2 }, // '10' - quarter-based MVs
128 { -VP8_SPLITMVMODE_16x8, // '110' - top/bottom MVs
129 -VP8_SPLITMVMODE_8x16 } // '111' - left/right MVs
131 static const uint8_t vp8_mbsplit_count[4] = { 2, 2, 4, 16 };
132 static const uint8_t vp8_mbsplit_prob[3] = { 110, 111, 150 };
134 static const uint8_t vp8_submv_prob[5][3] = {
142 static const int8_t vp8_submv_ref_tree[3][2] = {
143 { -VP8_SUBMVMODE_LEFT4X4, 1 }, // '0'
144 { -VP8_SUBMVMODE_TOP4X4, 2 }, // '10'
145 { -VP8_SUBMVMODE_ZERO4X4, -VP8_SUBMVMODE_NEW4X4 } // '110', '111'
148 static const uint8_t vp8_pred16x16_prob_intra[4] = { 145, 156, 163, 128 };
149 static const uint8_t vp8_pred16x16_prob_inter[4] = { 112, 86, 140, 37 };
151 static const int8_t vp8_pred4x4_tree[9][2] =
153 { -DC_PRED, 1 }, // '0'
154 { -TM_VP8_PRED, 2 }, // '10'
155 { -VERT_PRED, 3 }, // '110'
157 { -HOR_PRED, 5 }, // '11100'
158 { -DIAG_DOWN_RIGHT_PRED, -VERT_RIGHT_PRED }, // '111010', '111011'
159 { -DIAG_DOWN_LEFT_PRED, 7 }, // '11110'
160 { -VERT_LEFT_PRED, 8 }, // '111110'
161 { -HOR_DOWN_PRED, -HOR_UP_PRED }, // '1111110', '1111111'
164 static const int8_t vp8_pred8x8c_tree[3][2] =
166 { -DC_PRED8x8, 1 }, // '0'
167 { -VERT_PRED8x8, 2 }, // '10
168 { -HOR_PRED8x8, -PLANE_PRED8x8 }, // '110', '111'
171 static const uint8_t vp8_pred8x8c_prob_intra[3] = { 142, 114, 183 };
172 static const uint8_t vp8_pred8x8c_prob_inter[3] = { 162, 101, 204 };
174 static const uint8_t vp8_pred4x4_prob_inter[9] =
176 120, 90, 79, 133, 87, 85, 80, 111, 151
179 static const uint8_t vp8_pred4x4_prob_intra[10][10][9] =
182 { 39, 53, 200, 87, 26, 21, 43, 232, 171 },
183 { 56, 34, 51, 104, 114, 102, 29, 93, 77 },
184 { 88, 88, 147, 150, 42, 46, 45, 196, 205 },
185 { 107, 54, 32, 26, 51, 1, 81, 43, 31 },
186 { 39, 28, 85, 171, 58, 165, 90, 98, 64 },
187 { 34, 22, 116, 206, 23, 34, 43, 166, 73 },
188 { 34, 19, 21, 102, 132, 188, 16, 76, 124 },
189 { 68, 25, 106, 22, 64, 171, 36, 225, 114 },
190 { 62, 18, 78, 95, 85, 57, 50, 48, 51 },
191 { 43, 97, 183, 117, 85, 38, 35, 179, 61 },
194 { 112, 113, 77, 85, 179, 255, 38, 120, 114 },
195 { 40, 42, 1, 196, 245, 209, 10, 25, 109 },
196 { 193, 101, 35, 159, 215, 111, 89, 46, 111 },
197 { 100, 80, 8, 43, 154, 1, 51, 26, 71 },
198 { 88, 43, 29, 140, 166, 213, 37, 43, 154 },
199 { 61, 63, 30, 155, 67, 45, 68, 1, 209 },
200 { 41, 40, 5, 102, 211, 183, 4, 1, 221 },
201 { 142, 78, 78, 16, 255, 128, 34, 197, 171 },
202 { 51, 50, 17, 168, 209, 192, 23, 25, 82 },
203 { 60, 148, 31, 172, 219, 228, 21, 18, 111 },
206 { 175, 69, 143, 80, 85, 82, 72, 155, 103 },
207 { 56, 58, 10, 171, 218, 189, 17, 13, 152 },
208 { 231, 120, 48, 89, 115, 113, 120, 152, 112 },
209 { 144, 71, 10, 38, 171, 213, 144, 34, 26 },
210 { 114, 26, 17, 163, 44, 195, 21, 10, 173 },
211 { 121, 24, 80, 195, 26, 62, 44, 64, 85 },
212 { 63, 20, 8, 114, 114, 208, 12, 9, 226 },
213 { 170, 46, 55, 19, 136, 160, 33, 206, 71 },
214 { 81, 40, 11, 96, 182, 84, 29, 16, 36 },
215 { 152, 179, 64, 126, 170, 118, 46, 70, 95 },
218 { 75, 79, 123, 47, 51, 128, 81, 171, 1 },
219 { 57, 17, 5, 71, 102, 57, 53, 41, 49 },
220 { 125, 98, 42, 88, 104, 85, 117, 175, 82 },
221 { 115, 21, 2, 10, 102, 255, 166, 23, 6 },
222 { 38, 33, 13, 121, 57, 73, 26, 1, 85 },
223 { 41, 10, 67, 138, 77, 110, 90, 47, 114 },
224 { 57, 18, 10, 102, 102, 213, 34, 20, 43 },
225 { 101, 29, 16, 10, 85, 128, 101, 196, 26 },
226 { 117, 20, 15, 36, 163, 128, 68, 1, 26 },
227 { 95, 84, 53, 89, 128, 100, 113, 101, 45 },
230 { 63, 59, 90, 180, 59, 166, 93, 73, 154 },
231 { 40, 40, 21, 116, 143, 209, 34, 39, 175 },
232 { 138, 31, 36, 171, 27, 166, 38, 44, 229 },
233 { 57, 46, 22, 24, 128, 1, 54, 17, 37 },
234 { 47, 15, 16, 183, 34, 223, 49, 45, 183 },
235 { 46, 17, 33, 183, 6, 98, 15, 32, 183 },
236 { 40, 3, 9, 115, 51, 192, 18, 6, 223 },
237 { 65, 32, 73, 115, 28, 128, 23, 128, 205 },
238 { 87, 37, 9, 115, 59, 77, 64, 21, 47 },
239 { 67, 87, 58, 169, 82, 115, 26, 59, 179 },
242 { 54, 57, 112, 184, 5, 41, 38, 166, 213 },
243 { 30, 34, 26, 133, 152, 116, 10, 32, 134 },
244 { 104, 55, 44, 218, 9, 54, 53, 130, 226 },
245 { 75, 32, 12, 51, 192, 255, 160, 43, 51 },
246 { 39, 19, 53, 221, 26, 114, 32, 73, 255 },
247 { 31, 9, 65, 234, 2, 15, 1, 118, 73 },
248 { 56, 21, 23, 111, 59, 205, 45, 37, 192 },
249 { 88, 31, 35, 67, 102, 85, 55, 186, 85 },
250 { 55, 38, 70, 124, 73, 102, 1, 34, 98 },
251 { 64, 90, 70, 205, 40, 41, 23, 26, 57 },
254 { 86, 40, 64, 135, 148, 224, 45, 183, 128 },
255 { 22, 26, 17, 131, 240, 154, 14, 1, 209 },
256 { 164, 50, 31, 137, 154, 133, 25, 35, 218 },
257 { 83, 12, 13, 54, 192, 255, 68, 47, 28 },
258 { 45, 16, 21, 91, 64, 222, 7, 1, 197 },
259 { 56, 21, 39, 155, 60, 138, 23, 102, 213 },
260 { 18, 11, 7, 63, 144, 171, 4, 4, 246 },
261 { 85, 26, 85, 85, 128, 128, 32, 146, 171 },
262 { 35, 27, 10, 146, 174, 171, 12, 26, 128 },
263 { 51, 103, 44, 131, 131, 123, 31, 6, 158 },
266 { 68, 45, 128, 34, 1, 47, 11, 245, 171 },
267 { 62, 17, 19, 70, 146, 85, 55, 62, 70 },
268 { 102, 61, 71, 37, 34, 53, 31, 243, 192 },
269 { 75, 15, 9, 9, 64, 255, 184, 119, 16 },
270 { 37, 43, 37, 154, 100, 163, 85, 160, 1 },
271 { 63, 9, 92, 136, 28, 64, 32, 201, 85 },
272 { 56, 8, 17, 132, 137, 255, 55, 116, 128 },
273 { 86, 6, 28, 5, 64, 255, 25, 248, 1 },
274 { 58, 15, 20, 82, 135, 57, 26, 121, 40 },
275 { 69, 60, 71, 38, 73, 119, 28, 222, 37 },
278 { 101, 75, 128, 139, 118, 146, 116, 128, 85 },
279 { 56, 41, 15, 176, 236, 85, 37, 9, 62 },
280 { 190, 80, 35, 99, 180, 80, 126, 54, 45 },
281 { 146, 36, 19, 30, 171, 255, 97, 27, 20 },
282 { 71, 30, 17, 119, 118, 255, 17, 18, 138 },
283 { 101, 38, 60, 138, 55, 70, 43, 26, 142 },
284 { 32, 41, 20, 117, 151, 142, 20, 21, 163 },
285 { 138, 45, 61, 62, 219, 1, 81, 188, 64 },
286 { 112, 19, 12, 61, 195, 128, 48, 4, 24 },
287 { 85, 126, 47, 87, 176, 51, 41, 20, 32 },
290 { 66, 102, 167, 99, 74, 62, 40, 234, 128 },
291 { 41, 53, 9, 178, 241, 141, 26, 8, 107 },
292 { 134, 183, 89, 137, 98, 101, 106, 165, 148 },
293 { 104, 79, 12, 27, 217, 255, 87, 17, 7 },
294 { 74, 43, 26, 146, 73, 166, 49, 23, 157 },
295 { 65, 38, 105, 160, 51, 52, 31, 115, 128 },
296 { 47, 41, 14, 110, 182, 183, 21, 17, 194 },
297 { 87, 68, 71, 44, 114, 51, 15, 186, 23 },
298 { 66, 45, 25, 102, 197, 189, 23, 18, 22 },
299 { 72, 187, 100, 130, 157, 111, 32, 75, 80 },
303 static const int8_t vp8_segmentid_tree[][2] =
306 { -0, -1 }, // '00', '01'
307 { -2, -3 }, // '10', '11'
310 static const uint8_t vp8_coeff_band[16] =
312 0, 1, 2, 3, 6, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6, 7
315 static const uint8_t vp8_dct_cat1_prob[] = { 159, 0 };
316 static const uint8_t vp8_dct_cat2_prob[] = { 165, 145, 0 };
317 static const uint8_t vp8_dct_cat3_prob[] = { 173, 148, 140, 0 };
318 static const uint8_t vp8_dct_cat4_prob[] = { 176, 155, 140, 135, 0 };
319 static const uint8_t vp8_dct_cat5_prob[] = { 180, 157, 141, 134, 130, 0 };
320 static const uint8_t vp8_dct_cat6_prob[] = { 254, 254, 243, 230, 196, 177, 153, 140, 133, 130, 129, 0 };
322 // only used for cat3 and above; cat 1 and 2 are referenced directly
323 static const uint8_t * const vp8_dct_cat_prob[] =
331 static const uint8_t vp8_token_default_probs[4][8][3][NUM_DCT_TOKENS-1] =
335 { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
336 { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
337 { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
340 { 253, 136, 254, 255, 228, 219, 128, 128, 128, 128, 128 },
341 { 189, 129, 242, 255, 227, 213, 255, 219, 128, 128, 128 },
342 { 106, 126, 227, 252, 214, 209, 255, 255, 128, 128, 128 },
345 { 1, 98, 248, 255, 236, 226, 255, 255, 128, 128, 128 },
346 { 181, 133, 238, 254, 221, 234, 255, 154, 128, 128, 128 },
347 { 78, 134, 202, 247, 198, 180, 255, 219, 128, 128, 128 },
350 { 1, 185, 249, 255, 243, 255, 128, 128, 128, 128, 128 },
351 { 184, 150, 247, 255, 236, 224, 128, 128, 128, 128, 128 },
352 { 77, 110, 216, 255, 236, 230, 128, 128, 128, 128, 128 },
355 { 1, 101, 251, 255, 241, 255, 128, 128, 128, 128, 128 },
356 { 170, 139, 241, 252, 236, 209, 255, 255, 128, 128, 128 },
357 { 37, 116, 196, 243, 228, 255, 255, 255, 128, 128, 128 },
360 { 1, 204, 254, 255, 245, 255, 128, 128, 128, 128, 128 },
361 { 207, 160, 250, 255, 238, 128, 128, 128, 128, 128, 128 },
362 { 102, 103, 231, 255, 211, 171, 128, 128, 128, 128, 128 },
365 { 1, 152, 252, 255, 240, 255, 128, 128, 128, 128, 128 },
366 { 177, 135, 243, 255, 234, 225, 128, 128, 128, 128, 128 },
367 { 80, 129, 211, 255, 194, 224, 128, 128, 128, 128, 128 },
370 { 1, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
371 { 246, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
372 { 255, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
377 { 198, 35, 237, 223, 193, 187, 162, 160, 145, 155, 62 },
378 { 131, 45, 198, 221, 172, 176, 220, 157, 252, 221, 1 },
379 { 68, 47, 146, 208, 149, 167, 221, 162, 255, 223, 128 },
382 { 1, 149, 241, 255, 221, 224, 255, 255, 128, 128, 128 },
383 { 184, 141, 234, 253, 222, 220, 255, 199, 128, 128, 128 },
384 { 81, 99, 181, 242, 176, 190, 249, 202, 255, 255, 128 },
387 { 1, 129, 232, 253, 214, 197, 242, 196, 255, 255, 128 },
388 { 99, 121, 210, 250, 201, 198, 255, 202, 128, 128, 128 },
389 { 23, 91, 163, 242, 170, 187, 247, 210, 255, 255, 128 },
392 { 1, 200, 246, 255, 234, 255, 128, 128, 128, 128, 128 },
393 { 109, 178, 241, 255, 231, 245, 255, 255, 128, 128, 128 },
394 { 44, 130, 201, 253, 205, 192, 255, 255, 128, 128, 128 },
397 { 1, 132, 239, 251, 219, 209, 255, 165, 128, 128, 128 },
398 { 94, 136, 225, 251, 218, 190, 255, 255, 128, 128, 128 },
399 { 22, 100, 174, 245, 186, 161, 255, 199, 128, 128, 128 },
402 { 1, 182, 249, 255, 232, 235, 128, 128, 128, 128, 128 },
403 { 124, 143, 241, 255, 227, 234, 128, 128, 128, 128, 128 },
404 { 35, 77, 181, 251, 193, 211, 255, 205, 128, 128, 128 },
407 { 1, 157, 247, 255, 236, 231, 255, 255, 128, 128, 128 },
408 { 121, 141, 235, 255, 225, 227, 255, 255, 128, 128, 128 },
409 { 45, 99, 188, 251, 195, 217, 255, 224, 128, 128, 128 },
412 { 1, 1, 251, 255, 213, 255, 128, 128, 128, 128, 128 },
413 { 203, 1, 248, 255, 255, 128, 128, 128, 128, 128, 128 },
414 { 137, 1, 177, 255, 224, 255, 128, 128, 128, 128, 128 },
419 { 253, 9, 248, 251, 207, 208, 255, 192, 128, 128, 128 },
420 { 175, 13, 224, 243, 193, 185, 249, 198, 255, 255, 128 },
421 { 73, 17, 171, 221, 161, 179, 236, 167, 255, 234, 128 },
424 { 1, 95, 247, 253, 212, 183, 255, 255, 128, 128, 128 },
425 { 239, 90, 244, 250, 211, 209, 255, 255, 128, 128, 128 },
426 { 155, 77, 195, 248, 188, 195, 255, 255, 128, 128, 128 },
429 { 1, 24, 239, 251, 218, 219, 255, 205, 128, 128, 128 },
430 { 201, 51, 219, 255, 196, 186, 128, 128, 128, 128, 128 },
431 { 69, 46, 190, 239, 201, 218, 255, 228, 128, 128, 128 },
434 { 1, 191, 251, 255, 255, 128, 128, 128, 128, 128, 128 },
435 { 223, 165, 249, 255, 213, 255, 128, 128, 128, 128, 128 },
436 { 141, 124, 248, 255, 255, 128, 128, 128, 128, 128, 128 },
439 { 1, 16, 248, 255, 255, 128, 128, 128, 128, 128, 128 },
440 { 190, 36, 230, 255, 236, 255, 128, 128, 128, 128, 128 },
441 { 149, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
444 { 1, 226, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
445 { 247, 192, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
446 { 240, 128, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
449 { 1, 134, 252, 255, 255, 128, 128, 128, 128, 128, 128 },
450 { 213, 62, 250, 255, 255, 128, 128, 128, 128, 128, 128 },
451 { 55, 93, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
454 { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
455 { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
456 { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
461 { 202, 24, 213, 235, 186, 191, 220, 160, 240, 175, 255 },
462 { 126, 38, 182, 232, 169, 184, 228, 174, 255, 187, 128 },
463 { 61, 46, 138, 219, 151, 178, 240, 170, 255, 216, 128 },
466 { 1, 112, 230, 250, 199, 191, 247, 159, 255, 255, 128 },
467 { 166, 109, 228, 252, 211, 215, 255, 174, 128, 128, 128 },
468 { 39, 77, 162, 232, 172, 180, 245, 178, 255, 255, 128 },
471 { 1, 52, 220, 246, 198, 199, 249, 220, 255, 255, 128 },
472 { 124, 74, 191, 243, 183, 193, 250, 221, 255, 255, 128 },
473 { 24, 71, 130, 219, 154, 170, 243, 182, 255, 255, 128 },
476 { 1, 182, 225, 249, 219, 240, 255, 224, 128, 128, 128 },
477 { 149, 150, 226, 252, 216, 205, 255, 171, 128, 128, 128 },
478 { 28, 108, 170, 242, 183, 194, 254, 223, 255, 255, 128 },
481 { 1, 81, 230, 252, 204, 203, 255, 192, 128, 128, 128 },
482 { 123, 102, 209, 247, 188, 196, 255, 233, 128, 128, 128 },
483 { 20, 95, 153, 243, 164, 173, 255, 203, 128, 128, 128 },
486 { 1, 222, 248, 255, 216, 213, 128, 128, 128, 128, 128 },
487 { 168, 175, 246, 252, 235, 205, 255, 255, 128, 128, 128 },
488 { 47, 116, 215, 255, 211, 212, 255, 255, 128, 128, 128 },
491 { 1, 121, 236, 253, 212, 214, 255, 255, 128, 128, 128 },
492 { 141, 84, 213, 252, 201, 202, 255, 219, 128, 128, 128 },
493 { 42, 80, 160, 240, 162, 185, 255, 205, 128, 128, 128 },
496 { 1, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
497 { 244, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
498 { 238, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
503 static const uint8_t vp8_token_update_probs[4][8][3][NUM_DCT_TOKENS-1] =
507 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
508 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
509 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
512 { 176, 246, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
513 { 223, 241, 252, 255, 255, 255, 255, 255, 255, 255, 255 },
514 { 249, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
517 { 255, 244, 252, 255, 255, 255, 255, 255, 255, 255, 255 },
518 { 234, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
519 { 253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
522 { 255, 246, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
523 { 239, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
524 { 254, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
527 { 255, 248, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
528 { 251, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
529 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
532 { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
533 { 251, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
534 { 254, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
537 { 255, 254, 253, 255, 254, 255, 255, 255, 255, 255, 255 },
538 { 250, 255, 254, 255, 254, 255, 255, 255, 255, 255, 255 },
539 { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
542 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
543 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
544 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
549 { 217, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
550 { 225, 252, 241, 253, 255, 255, 254, 255, 255, 255, 255 },
551 { 234, 250, 241, 250, 253, 255, 253, 254, 255, 255, 255 },
554 { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
555 { 223, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
556 { 238, 253, 254, 254, 255, 255, 255, 255, 255, 255, 255 },
559 { 255, 248, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
560 { 249, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
561 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
564 { 255, 253, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
565 { 247, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
566 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
569 { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
570 { 252, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
571 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
574 { 255, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
575 { 253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
576 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
579 { 255, 254, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
580 { 250, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
581 { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
584 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
585 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
586 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
591 { 186, 251, 250, 255, 255, 255, 255, 255, 255, 255, 255 },
592 { 234, 251, 244, 254, 255, 255, 255, 255, 255, 255, 255 },
593 { 251, 251, 243, 253, 254, 255, 254, 255, 255, 255, 255 },
596 { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
597 { 236, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
598 { 251, 253, 253, 254, 254, 255, 255, 255, 255, 255, 255 },
601 { 255, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
602 { 254, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
603 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
606 { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
607 { 254, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
608 { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
611 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
612 { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
613 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
616 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
617 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
618 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
621 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
622 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
623 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
626 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
627 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
628 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
633 { 248, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
634 { 250, 254, 252, 254, 255, 255, 255, 255, 255, 255, 255 },
635 { 248, 254, 249, 253, 255, 255, 255, 255, 255, 255, 255 },
638 { 255, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
639 { 246, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
640 { 252, 254, 251, 254, 254, 255, 255, 255, 255, 255, 255 },
643 { 255, 254, 252, 255, 255, 255, 255, 255, 255, 255, 255 },
644 { 248, 254, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
645 { 253, 255, 254, 254, 255, 255, 255, 255, 255, 255, 255 },
648 { 255, 251, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
649 { 245, 251, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
650 { 253, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
653 { 255, 251, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
654 { 252, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
655 { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
658 { 255, 252, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
659 { 249, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
660 { 255, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
663 { 255, 255, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
664 { 250, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
665 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
668 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
669 { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
670 { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
675 // fixme: copied from h264data.h
676 static const uint8_t zigzag_scan[16]={
677 0+0*4, 1+0*4, 0+1*4, 0+2*4,
678 1+1*4, 2+0*4, 3+0*4, 2+1*4,
679 1+2*4, 0+3*4, 1+3*4, 2+2*4,
680 3+1*4, 3+2*4, 2+3*4, 3+3*4,
683 static const uint8_t vp8_dc_qlookup[VP8_MAX_QUANT+1] =
685 4, 5, 6, 7, 8, 9, 10, 10, 11, 12, 13, 14, 15, 16, 17, 17,
686 18, 19, 20, 20, 21, 21, 22, 22, 23, 23, 24, 25, 25, 26, 27, 28,
687 29, 30, 31, 32, 33, 34, 35, 36, 37, 37, 38, 39, 40, 41, 42, 43,
688 44, 45, 46, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58,
689 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74,
690 75, 76, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89,
691 91, 93, 95, 96, 98, 100, 101, 102, 104, 106, 108, 110, 112, 114, 116, 118,
692 122, 124, 126, 128, 130, 132, 134, 136, 138, 140, 143, 145, 148, 151, 154, 157,
695 static const uint16_t vp8_ac_qlookup[VP8_MAX_QUANT+1] =
697 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
698 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35,
699 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51,
700 52, 53, 54, 55, 56, 57, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76,
701 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106, 108,
702 110, 112, 114, 116, 119, 122, 125, 128, 131, 134, 137, 140, 143, 146, 149, 152,
703 155, 158, 161, 164, 167, 170, 173, 177, 181, 185, 189, 193, 197, 201, 205, 209,
704 213, 217, 221, 225, 229, 234, 239, 245, 249, 254, 259, 264, 269, 274, 279, 284,
707 static const uint8_t vp8_mv_update_prob[2][19] = {
710 253, 253, 254, 254, 254, 254, 254,
711 254, 254, 254, 254, 254, 250, 250, 252, 254, 254 },
714 245, 253, 254, 254, 254, 254, 254,
715 254, 254, 254, 254, 254, 251, 251, 254, 254, 254 }
718 static const uint8_t vp8_mv_default_prob[2][19] = {
721 225, 146, 172, 147, 214, 39, 156,
722 128, 129, 132, 75, 145, 178, 206, 239, 254, 254 },
725 204, 170, 119, 235, 140, 230, 228,
726 128, 130, 130, 74, 148, 180, 203, 236, 254, 254 }