ref: 649be94cf0d2c4c1e9a6a65708b6289799643462
dir: /vp9/common/vp9_entropy.c/
/*
* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include <stdio.h>
#include "vp9/common/vp9_entropy.h"
#include "string.h"
#include "vp9/common/vp9_blockd.h"
#include "vp9/common/vp9_onyxc_int.h"
#include "vp9/common/vp9_entropymode.h"
#include "vpx_mem/vpx_mem.h"
#include "vpx/vpx_integer.h"
#include "vp9/common/vp9_coefupdateprobs.h"
const int vp9_i8x8_block[4] = {0, 2, 8, 10};
DECLARE_ALIGNED(16, const uint8_t, vp9_norm[256]) = {
0, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
DECLARE_ALIGNED(16, const int, vp9_coef_bands_4x4[16]) = {
0, 1, 2, 3, 6, 4, 5, 6, 6, 6, 6, 6, 6, 7, 7, 7
};
DECLARE_ALIGNED(16, const uint8_t, vp9_prev_token_class[MAX_ENTROPY_TOKENS]) = {
0, 1, 2, 2, 3, 3, 3, 3, 3, 3, 3, 0
};
DECLARE_ALIGNED(16, const int, vp9_default_zig_zag1d_4x4[16]) = {
0, 1, 4, 8,
5, 2, 3, 6,
9, 12, 13, 10,
7, 11, 14, 15,
};
DECLARE_ALIGNED(16, const int, vp9_col_scan_4x4[16]) = {
0, 4, 8, 12,
1, 5, 9, 13,
2, 6, 10, 14,
3, 7, 11, 15
};
DECLARE_ALIGNED(16, const int, vp9_row_scan_4x4[16]) = {
0, 1, 2, 3,
4, 5, 6, 7,
8, 9, 10, 11,
12, 13, 14, 15
};
DECLARE_ALIGNED(64, const int, vp9_coef_bands_8x8[64]) = {
0, 1, 2, 3, 5, 4, 4, 5,
5, 3, 6, 3, 5, 4, 6, 6,
6, 5, 5, 6, 6, 6, 6, 6,
6, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 6, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7
};
DECLARE_ALIGNED(64, const int, vp9_default_zig_zag1d_8x8[64]) = {
0, 1, 8, 16, 9, 2, 3, 10, 17, 24, 32, 25, 18, 11, 4, 5,
12, 19, 26, 33, 40, 48, 41, 34, 27, 20, 13, 6, 7, 14, 21, 28,
35, 42, 49, 56, 57, 50, 43, 36, 29, 22, 15, 23, 30, 37, 44, 51,
58, 59, 52, 45, 38, 31, 39, 46, 53, 60, 61, 54, 47, 55, 62, 63,
};
// Table can be optimized.
DECLARE_ALIGNED(16, const int, vp9_coef_bands_16x16[256]) = {
0, 1, 2, 3, 5, 4, 4, 5, 5, 3, 6, 3, 5, 4, 6, 6,
6, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
};
DECLARE_ALIGNED(16, const int, vp9_default_zig_zag1d_16x16[256]) = {
0, 1, 16, 32, 17, 2, 3, 18,
33, 48, 64, 49, 34, 19, 4, 5,
20, 35, 50, 65, 80, 96, 81, 66,
51, 36, 21, 6, 7, 22, 37, 52,
67, 82, 97, 112, 128, 113, 98, 83,
68, 53, 38, 23, 8, 9, 24, 39,
54, 69, 84, 99, 114, 129, 144, 160,
145, 130, 115, 100, 85, 70, 55, 40,
25, 10, 11, 26, 41, 56, 71, 86,
101, 116, 131, 146, 161, 176, 192, 177,
162, 147, 132, 117, 102, 87, 72, 57,
42, 27, 12, 13, 28, 43, 58, 73,
88, 103, 118, 133, 148, 163, 178, 193,
208, 224, 209, 194, 179, 164, 149, 134,
119, 104, 89, 74, 59, 44, 29, 14,
15, 30, 45, 60, 75, 90, 105, 120,
135, 150, 165, 180, 195, 210, 225, 240,
241, 226, 211, 196, 181, 166, 151, 136,
121, 106, 91, 76, 61, 46, 31, 47,
62, 77, 92, 107, 122, 137, 152, 167,
182, 197, 212, 227, 242, 243, 228, 213,
198, 183, 168, 153, 138, 123, 108, 93,
78, 63, 79, 94, 109, 124, 139, 154,
169, 184, 199, 214, 229, 244, 245, 230,
215, 200, 185, 170, 155, 140, 125, 110,
95, 111, 126, 141, 156, 171, 186, 201,
216, 231, 246, 247, 232, 217, 202, 187,
172, 157, 142, 127, 143, 158, 173, 188,
203, 218, 233, 248, 249, 234, 219, 204,
189, 174, 159, 175, 190, 205, 220, 235,
250, 251, 236, 221, 206, 191, 207, 222,
237, 252, 253, 238, 223, 239, 254, 255,
};
DECLARE_ALIGNED(16, const int, vp9_coef_bands_32x32[1024]) = {
0, 1, 2, 3, 5, 4, 4, 5, 5, 3, 6, 3, 5, 4, 6, 6,
6, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
};
DECLARE_ALIGNED(16, const int, vp9_default_zig_zag1d_32x32[1024]) = {
0, 1, 32, 64, 33, 2, 3, 34, 65, 96, 128, 97, 66, 35, 4, 5, 36, 67, 98, 129, 160, 192, 161, 130, 99, 68, 37, 6, 7, 38, 69, 100,
131, 162, 193, 224, 256, 225, 194, 163, 132, 101, 70, 39, 8, 9, 40, 71, 102, 133, 164, 195, 226, 257, 288, 320, 289, 258, 227, 196, 165, 134, 103, 72,
41, 10, 11, 42, 73, 104, 135, 166, 197, 228, 259, 290, 321, 352, 384, 353, 322, 291, 260, 229, 198, 167, 136, 105, 74, 43, 12, 13, 44, 75, 106, 137,
168, 199, 230, 261, 292, 323, 354, 385, 416, 448, 417, 386, 355, 324, 293, 262, 231, 200, 169, 138, 107, 76, 45, 14, 15, 46, 77, 108, 139, 170, 201, 232,
263, 294, 325, 356, 387, 418, 449, 480, 512, 481, 450, 419, 388, 357, 326, 295, 264, 233, 202, 171, 140, 109, 78, 47, 16, 17, 48, 79, 110, 141, 172, 203,
234, 265, 296, 327, 358, 389, 420, 451, 482, 513, 544, 576, 545, 514, 483, 452, 421, 390, 359, 328, 297, 266, 235, 204, 173, 142, 111, 80, 49, 18, 19, 50,
81, 112, 143, 174, 205, 236, 267, 298, 329, 360, 391, 422, 453, 484, 515, 546, 577, 608, 640, 609, 578, 547, 516, 485, 454, 423, 392, 361, 330, 299, 268, 237,
206, 175, 144, 113, 82, 51, 20, 21, 52, 83, 114, 145, 176, 207, 238, 269, 300, 331, 362, 393, 424, 455, 486, 517, 548, 579, 610, 641, 672, 704, 673, 642,
611, 580, 549, 518, 487, 456, 425, 394, 363, 332, 301, 270, 239, 208, 177, 146, 115, 84, 53, 22, 23, 54, 85, 116, 147, 178, 209, 240, 271, 302, 333, 364,
395, 426, 457, 488, 519, 550, 581, 612, 643, 674, 705, 736, 768, 737, 706, 675, 644, 613, 582, 551, 520, 489, 458, 427, 396, 365, 334, 303, 272, 241, 210, 179,
148, 117, 86, 55, 24, 25, 56, 87, 118, 149, 180, 211, 242, 273, 304, 335, 366, 397, 428, 459, 490, 521, 552, 583, 614, 645, 676, 707, 738, 769, 800, 832,
801, 770, 739, 708, 677, 646, 615, 584, 553, 522, 491, 460, 429, 398, 367, 336, 305, 274, 243, 212, 181, 150, 119, 88, 57, 26, 27, 58, 89, 120, 151, 182,
213, 244, 275, 306, 337, 368, 399, 430, 461, 492, 523, 554, 585, 616, 647, 678, 709, 740, 771, 802, 833, 864, 896, 865, 834, 803, 772, 741, 710, 679, 648, 617,
586, 555, 524, 493, 462, 431, 400, 369, 338, 307, 276, 245, 214, 183, 152, 121, 90, 59, 28, 29, 60, 91, 122, 153, 184, 215, 246, 277, 308, 339, 370, 401,
432, 463, 494, 525, 556, 587, 618, 649, 680, 711, 742, 773, 804, 835, 866, 897, 928, 960, 929, 898, 867, 836, 805, 774, 743, 712, 681, 650, 619, 588, 557, 526,
495, 464, 433, 402, 371, 340, 309, 278, 247, 216, 185, 154, 123, 92, 61, 30, 31, 62, 93, 124, 155, 186, 217, 248, 279, 310, 341, 372, 403, 434, 465, 496,
527, 558, 589, 620, 651, 682, 713, 744, 775, 806, 837, 868, 899, 930, 961, 992, 993, 962, 931, 900, 869, 838, 807, 776, 745, 714, 683, 652, 621, 590, 559, 528,
497, 466, 435, 404, 373, 342, 311, 280, 249, 218, 187, 156, 125, 94, 63, 95, 126, 157, 188, 219, 250, 281, 312, 343, 374, 405, 436, 467, 498, 529, 560, 591,
622, 653, 684, 715, 746, 777, 808, 839, 870, 901, 932, 963, 994, 995, 964, 933, 902, 871, 840, 809, 778, 747, 716, 685, 654, 623, 592, 561, 530, 499, 468, 437,
406, 375, 344, 313, 282, 251, 220, 189, 158, 127, 159, 190, 221, 252, 283, 314, 345, 376, 407, 438, 469, 500, 531, 562, 593, 624, 655, 686, 717, 748, 779, 810,
841, 872, 903, 934, 965, 996, 997, 966, 935, 904, 873, 842, 811, 780, 749, 718, 687, 656, 625, 594, 563, 532, 501, 470, 439, 408, 377, 346, 315, 284, 253, 222,
191, 223, 254, 285, 316, 347, 378, 409, 440, 471, 502, 533, 564, 595, 626, 657, 688, 719, 750, 781, 812, 843, 874, 905, 936, 967, 998, 999, 968, 937, 906, 875,
844, 813, 782, 751, 720, 689, 658, 627, 596, 565, 534, 503, 472, 441, 410, 379, 348, 317, 286, 255, 287, 318, 349, 380, 411, 442, 473, 504, 535, 566, 597, 628,
659, 690, 721, 752, 783, 814, 845, 876, 907, 938, 969, 1000, 1001, 970, 939, 908, 877, 846, 815, 784, 753, 722, 691, 660, 629, 598, 567, 536, 505, 474, 443, 412,
381, 350, 319, 351, 382, 413, 444, 475, 506, 537, 568, 599, 630, 661, 692, 723, 754, 785, 816, 847, 878, 909, 940, 971, 1002, 1003, 972, 941, 910, 879, 848, 817,
786, 755, 724, 693, 662, 631, 600, 569, 538, 507, 476, 445, 414, 383, 415, 446, 477, 508, 539, 570, 601, 632, 663, 694, 725, 756, 787, 818, 849, 880, 911, 942,
973, 1004, 1005, 974, 943, 912, 881, 850, 819, 788, 757, 726, 695, 664, 633, 602, 571, 540, 509, 478, 447, 479, 510, 541, 572, 603, 634, 665, 696, 727, 758, 789,
820, 851, 882, 913, 944, 975, 1006, 1007, 976, 945, 914, 883, 852, 821, 790, 759, 728, 697, 666, 635, 604, 573, 542, 511, 543, 574, 605, 636, 667, 698, 729, 760,
791, 822, 853, 884, 915, 946, 977, 1008, 1009, 978, 947, 916, 885, 854, 823, 792, 761, 730, 699, 668, 637, 606, 575, 607, 638, 669, 700, 731, 762, 793, 824, 855,
886, 917, 948, 979, 1010, 1011, 980, 949, 918, 887, 856, 825, 794, 763, 732, 701, 670, 639, 671, 702, 733, 764, 795, 826, 857, 888, 919, 950, 981, 1012, 1013, 982,
951, 920, 889, 858, 827, 796, 765, 734, 703, 735, 766, 797, 828, 859, 890, 921, 952, 983, 1014, 1015, 984, 953, 922, 891, 860, 829, 798, 767, 799, 830, 861, 892,
923, 954, 985, 1016, 1017, 986, 955, 924, 893, 862, 831, 863, 894, 925, 956, 987, 1018, 1019, 988, 957, 926, 895, 927, 958, 989, 1020, 1021, 990, 959, 991, 1022, 1023,
};
/* Array indices are identical to previously-existing CONTEXT_NODE indices */
const vp9_tree_index vp9_coef_tree[ 22] = /* corresponding _CONTEXT_NODEs */
{
-DCT_EOB_TOKEN, 2, /* 0 = EOB */
-ZERO_TOKEN, 4, /* 1 = ZERO */
-ONE_TOKEN, 6, /* 2 = ONE */
8, 12, /* 3 = LOW_VAL */
-TWO_TOKEN, 10, /* 4 = TWO */
-THREE_TOKEN, -FOUR_TOKEN, /* 5 = THREE */
14, 16, /* 6 = HIGH_LOW */
-DCT_VAL_CATEGORY1, -DCT_VAL_CATEGORY2, /* 7 = CAT_ONE */
18, 20, /* 8 = CAT_THREEFOUR */
-DCT_VAL_CATEGORY3, -DCT_VAL_CATEGORY4, /* 9 = CAT_THREE */
-DCT_VAL_CATEGORY5, -DCT_VAL_CATEGORY6 /* 10 = CAT_FIVE */
};
struct vp9_token_struct vp9_coef_encodings[MAX_ENTROPY_TOKENS];
/* Trees for extra bits. Probabilities are constant and
do not depend on previously encoded bits */
static const vp9_prob Pcat1[] = { 159};
static const vp9_prob Pcat2[] = { 165, 145};
static const vp9_prob Pcat3[] = { 173, 148, 140};
static const vp9_prob Pcat4[] = { 176, 155, 140, 135};
static const vp9_prob Pcat5[] = { 180, 157, 141, 134, 130};
static const vp9_prob Pcat6[] = {
254, 254, 254, 252, 249, 243, 230, 196, 177, 153, 140, 133, 130, 129
};
static vp9_tree_index cat1[2], cat2[4], cat3[6], cat4[8], cat5[10], cat6[28];
static void init_bit_tree(vp9_tree_index *p, int n) {
int i = 0;
while (++i < n) {
p[0] = p[1] = i << 1;
p += 2;
}
p[0] = p[1] = 0;
}
static void init_bit_trees() {
init_bit_tree(cat1, 1);
init_bit_tree(cat2, 2);
init_bit_tree(cat3, 3);
init_bit_tree(cat4, 4);
init_bit_tree(cat5, 5);
init_bit_tree(cat6, 14);
}
vp9_extra_bit_struct vp9_extra_bits[12] = {
{ 0, 0, 0, 0},
{ 0, 0, 0, 1},
{ 0, 0, 0, 2},
{ 0, 0, 0, 3},
{ 0, 0, 0, 4},
{ cat1, Pcat1, 1, 5},
{ cat2, Pcat2, 2, 7},
{ cat3, Pcat3, 3, 11},
{ cat4, Pcat4, 4, 19},
{ cat5, Pcat5, 5, 35},
{ cat6, Pcat6, 14, 67},
{ 0, 0, 0, 0}
};
#include "vp9/common/vp9_default_coef_probs.h"
#if CONFIG_NEWCOEFCONTEXT
// Neighborhood 5-tuples for various scans and blocksizes,
// in {top, left, topleft, topright, bottomleft} order
// for each position in raster scan order.
// -1 indicates the neighbor does not exist.
DECLARE_ALIGNED(16, int,
vp9_default_zig_zag1d_4x4_neighbors[16 * MAX_NEIGHBORS]);
DECLARE_ALIGNED(16, int,
vp9_col_scan_4x4_neighbors[16 * MAX_NEIGHBORS]);
DECLARE_ALIGNED(16, int,
vp9_row_scan_4x4_neighbors[16 * MAX_NEIGHBORS]);
DECLARE_ALIGNED(16, int,
vp9_default_zig_zag1d_8x8_neighbors[64 * MAX_NEIGHBORS]);
DECLARE_ALIGNED(16, int,
vp9_default_zig_zag1d_16x16_neighbors[256 * MAX_NEIGHBORS]);
DECLARE_ALIGNED(16, int,
vp9_default_zig_zag1d_32x32_neighbors[1024 * MAX_NEIGHBORS]);
static int find_in_scan(const int *scan, int l, int m) {
int i, l2 = l * l;
for (i = 0; i < l2; ++i) {
if (scan[i] == m)
return i;
}
return -1;
}
static void init_scan_neighbors(const int *scan, int l, int *neighbors) {
int l2 = l * l;
int m, n, i, j, k;
for (n = 0; n < l2; ++n) {
int locn = find_in_scan(scan, l, n);
int z = -1;
i = n / l;
j = n % l;
for (k = 0; k < MAX_NEIGHBORS; ++k)
neighbors[MAX_NEIGHBORS * n + k] = -1;
if (i - 1 >= 0) {
m = (i - 1) * l + j;
if (find_in_scan(scan, l, m) < locn) {
neighbors[MAX_NEIGHBORS * n] = m;
if (m == 0) z = 0;
}
}
if (j - 1 >= 0) {
m = i * l + j - 1;
if (find_in_scan(scan, l, m) < locn) {
neighbors[MAX_NEIGHBORS * n + 1] = m;
if (m == 0) z = 1;
}
}
if (i - 1 >= 0 && j - 1 >= 0) {
m = (i - 1) * l + j - 1;
if (find_in_scan(scan, l, m) < locn) {
neighbors[MAX_NEIGHBORS * n + 2] = m;
if (m == 0) z = 2;
}
}
if (i - 1 >= 0 && j + 1 < l) {
m = (i - 1) * l + j + 1;
if (find_in_scan(scan, l, m) < locn) {
neighbors[MAX_NEIGHBORS * n + 3] = m;
if (m == 0) z = 3;
}
}
if (i + 1 < l && j - 1 >= 0) {
m = (i + 1) * l + j - 1;
if (find_in_scan(scan, l, m) < locn) {
neighbors[MAX_NEIGHBORS * n + 4] = m;
if (m == 0) z = 4;
}
}
if (z != -1) { // zero exists
int v = 0;
for (k = 0; k < MAX_NEIGHBORS; ++k)
v += (neighbors[MAX_NEIGHBORS * n + k] > 0);
if (v) {
neighbors[MAX_NEIGHBORS * n + z] = -1;
}
}
}
}
void vp9_init_neighbors() {
init_scan_neighbors(vp9_default_zig_zag1d_4x4, 4,
vp9_default_zig_zag1d_4x4_neighbors);
init_scan_neighbors(vp9_row_scan_4x4, 4,
vp9_row_scan_4x4_neighbors);
init_scan_neighbors(vp9_col_scan_4x4, 4,
vp9_col_scan_4x4_neighbors);
init_scan_neighbors(vp9_default_zig_zag1d_8x8, 8,
vp9_default_zig_zag1d_8x8_neighbors);
init_scan_neighbors(vp9_default_zig_zag1d_16x16, 16,
vp9_default_zig_zag1d_16x16_neighbors);
init_scan_neighbors(vp9_default_zig_zag1d_32x32, 32,
vp9_default_zig_zag1d_32x32_neighbors);
}
const int *vp9_get_coef_neighbors_handle(const int *scan) {
if (scan == vp9_default_zig_zag1d_4x4) {
return vp9_default_zig_zag1d_4x4_neighbors;
} else if (scan == vp9_row_scan_4x4) {
return vp9_row_scan_4x4_neighbors;
} else if (scan == vp9_col_scan_4x4) {
return vp9_col_scan_4x4_neighbors;
} else if (scan == vp9_default_zig_zag1d_8x8) {
return vp9_default_zig_zag1d_8x8_neighbors;
} else if (scan == vp9_default_zig_zag1d_16x16) {
return vp9_default_zig_zag1d_16x16_neighbors;
} else if (scan == vp9_default_zig_zag1d_32x32) {
return vp9_default_zig_zag1d_32x32_neighbors;
}
return vp9_default_zig_zag1d_4x4_neighbors;
}
int vp9_get_coef_neighbor_context(const short int *qcoeff_ptr, int nodc,
const int *neigbor_handle, int rc) {
static int neighbors_used = MAX_NEIGHBORS; // maximum is MAX_NEIGHBORS
const int *nb = neigbor_handle + rc * MAX_NEIGHBORS;
int i, v, val = 0, n = 0;
for (i = 0; i < neighbors_used; ++i) {
if (nb[i] == -1 || (nb[i] == 0 && nodc)) {
continue;
}
v = abs(qcoeff_ptr[nb[i]]);
val = (v > val ? v : val);
n++;
}
if (n == 0)
return 0;
else if (val <= 1)
return val;
else if (val < 4)
return 2;
else
return 3;
}
#endif /* CONFIG_NEWCOEFCONTEXT */
void vp9_default_coef_probs(VP9_COMMON *pc) {
vpx_memcpy(pc->fc.coef_probs_4x4, default_coef_probs_4x4,
sizeof(pc->fc.coef_probs_4x4));
vpx_memcpy(pc->fc.hybrid_coef_probs_4x4, default_hybrid_coef_probs_4x4,
sizeof(pc->fc.hybrid_coef_probs_4x4));
vpx_memcpy(pc->fc.coef_probs_8x8, default_coef_probs_8x8,
sizeof(pc->fc.coef_probs_8x8));
vpx_memcpy(pc->fc.hybrid_coef_probs_8x8, default_hybrid_coef_probs_8x8,
sizeof(pc->fc.hybrid_coef_probs_8x8));
vpx_memcpy(pc->fc.coef_probs_16x16, default_coef_probs_16x16,
sizeof(pc->fc.coef_probs_16x16));
vpx_memcpy(pc->fc.hybrid_coef_probs_16x16,
default_hybrid_coef_probs_16x16,
sizeof(pc->fc.hybrid_coef_probs_16x16));
vpx_memcpy(pc->fc.coef_probs_32x32, default_coef_probs_32x32,
sizeof(pc->fc.coef_probs_32x32));
}
void vp9_coef_tree_initialize() {
init_bit_trees();
vp9_tokens_from_tree(vp9_coef_encodings, vp9_coef_tree);
}
// #define COEF_COUNT_TESTING
#define COEF_COUNT_SAT 24
#define COEF_MAX_UPDATE_FACTOR 112
#define COEF_COUNT_SAT_KEY 24
#define COEF_MAX_UPDATE_FACTOR_KEY 112
#define COEF_COUNT_SAT_AFTER_KEY 24
#define COEF_MAX_UPDATE_FACTOR_AFTER_KEY 128
static void update_coef_probs(vp9_coeff_probs *dst_coef_probs,
vp9_coeff_probs *pre_coef_probs,
int block_types, vp9_coeff_count *coef_counts,
int count_sat, int update_factor) {
int t, i, j, k, count;
unsigned int branch_ct[ENTROPY_NODES][2];
vp9_prob coef_probs[ENTROPY_NODES];
int factor;
for (i = 0; i < block_types; ++i)
for (j = 0; j < COEF_BANDS; ++j)
for (k = 0; k < PREV_COEF_CONTEXTS; ++k) {
if (k >= 3 && ((i == 0 && j == 1) || (i > 0 && j == 0)))
continue;
vp9_tree_probs_from_distribution(MAX_ENTROPY_TOKENS,
vp9_coef_encodings, vp9_coef_tree,
coef_probs, branch_ct,
coef_counts[i][j][k]);
for (t = 0; t < ENTROPY_NODES; ++t) {
count = branch_ct[t][0] + branch_ct[t][1];
count = count > count_sat ? count_sat : count;
factor = (update_factor * count / count_sat);
dst_coef_probs[i][j][k][t] = weighted_prob(pre_coef_probs[i][j][k][t],
coef_probs[t], factor);
}
}
}
void vp9_adapt_coef_probs(VP9_COMMON *cm) {
#ifdef COEF_COUNT_TESTING
int t, i, j, k;
#endif
int count_sat;
int update_factor; /* denominator 256 */
// printf("Frame type: %d\n", cm->frame_type);
if (cm->frame_type == KEY_FRAME) {
update_factor = COEF_MAX_UPDATE_FACTOR_KEY;
count_sat = COEF_COUNT_SAT_KEY;
} else if (cm->last_frame_type == KEY_FRAME) {
update_factor = COEF_MAX_UPDATE_FACTOR_AFTER_KEY; /* adapt quickly */
count_sat = COEF_COUNT_SAT_AFTER_KEY;
} else {
update_factor = COEF_MAX_UPDATE_FACTOR;
count_sat = COEF_COUNT_SAT;
}
#ifdef COEF_COUNT_TESTING
{
printf("static const unsigned int\ncoef_counts"
"[BLOCK_TYPES] [COEF_BANDS]"
"[PREV_COEF_CONTEXTS] [MAX_ENTROPY_TOKENS] = {\n");
for (i = 0; i < BLOCK_TYPES; ++i) {
printf(" {\n");
for (j = 0; j < COEF_BANDS; ++j) {
printf(" {\n");
for (k = 0; k < PREV_COEF_CONTEXTS; ++k) {
printf(" {");
for (t = 0; t < MAX_ENTROPY_TOKENS; ++t)
printf("%d, ", cm->fc.coef_counts[i][j][k][t]);
printf("},\n");
}
printf(" },\n");
}
printf(" },\n");
}
printf("};\n");
printf("static const unsigned int\ncoef_counts_8x8"
"[BLOCK_TYPES_8X8] [COEF_BANDS]"
"[PREV_COEF_CONTEXTS] [MAX_ENTROPY_TOKENS] = {\n");
for (i = 0; i < BLOCK_TYPES_8X8; ++i) {
printf(" {\n");
for (j = 0; j < COEF_BANDS; ++j) {
printf(" {\n");
for (k = 0; k < PREV_COEF_CONTEXTS; ++k) {
printf(" {");
for (t = 0; t < MAX_ENTROPY_TOKENS; ++t)
printf("%d, ", cm->fc.coef_counts_8x8[i][j][k][t]);
printf("},\n");
}
printf(" },\n");
}
printf(" },\n");
}
printf("};\n");
printf("static const unsigned int\nhybrid_coef_counts"
"[BLOCK_TYPES] [COEF_BANDS]"
"[PREV_COEF_CONTEXTS] [MAX_ENTROPY_TOKENS] = {\n");
for (i = 0; i < BLOCK_TYPES; ++i) {
printf(" {\n");
for (j = 0; j < COEF_BANDS; ++j) {
printf(" {\n");
for (k = 0; k < PREV_COEF_CONTEXTS; ++k) {
printf(" {");
for (t = 0; t < MAX_ENTROPY_TOKENS; ++t)
printf("%d, ", cm->fc.hybrid_coef_counts[i][j][k][t]);
printf("},\n");
}
printf(" },\n");
}
printf(" },\n");
}
printf("};\n");
}
#endif
update_coef_probs(cm->fc.coef_probs_4x4, cm->fc.pre_coef_probs_4x4,
BLOCK_TYPES_4X4, cm->fc.coef_counts_4x4,
count_sat, update_factor);
update_coef_probs(cm->fc.hybrid_coef_probs_4x4,
cm->fc.pre_hybrid_coef_probs_4x4,
BLOCK_TYPES_4X4, cm->fc.hybrid_coef_counts_4x4,
count_sat, update_factor);
update_coef_probs(cm->fc.coef_probs_8x8, cm->fc.pre_coef_probs_8x8,
BLOCK_TYPES_8X8, cm->fc.coef_counts_8x8,
count_sat, update_factor);
update_coef_probs(cm->fc.hybrid_coef_probs_8x8,
cm->fc.pre_hybrid_coef_probs_8x8,
BLOCK_TYPES_8X8, cm->fc.hybrid_coef_counts_8x8,
count_sat, update_factor);
update_coef_probs(cm->fc.coef_probs_16x16, cm->fc.pre_coef_probs_16x16,
BLOCK_TYPES_16X16, cm->fc.coef_counts_16x16,
count_sat, update_factor);
update_coef_probs(cm->fc.hybrid_coef_probs_16x16,
cm->fc.pre_hybrid_coef_probs_16x16,
BLOCK_TYPES_16X16, cm->fc.hybrid_coef_counts_16x16,
count_sat, update_factor);
update_coef_probs(cm->fc.coef_probs_32x32, cm->fc.pre_coef_probs_32x32,
BLOCK_TYPES_32X32, cm->fc.coef_counts_32x32,
count_sat, update_factor);
}