entropymode.c 91.5 KB
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/*
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 * Copyright (c) 2016, Alliance for Open Media. All rights reserved
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 *
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 * This source code is subject to the terms of the BSD 2 Clause License and
 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
 * was not distributed with this source code in the LICENSE file, you can
 * obtain it at www.aomedia.org/license/software. If the Alliance for Open
 * Media Patent License 1.0 was not distributed with this source code in the
 * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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 */

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#include "aom_mem/aom_mem.h"
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#include "av1/common/reconinter.h"
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#include "av1/common/scan.h"
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#include "av1/common/onyxc_int.h"
#include "av1/common/seg_common.h"
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#if CONFIG_DAALA_EC
aom_cdf_prob av1_kf_y_mode_cdf[INTRA_MODES][INTRA_MODES][INTRA_MODES];
#endif

#if CONFIG_ALT_INTRA

const aom_prob av1_kf_y_mode_prob[INTRA_MODES][INTRA_MODES][INTRA_MODES - 1] = {
  {
      // above = dc
      { 121, 30, 54, 128, 164, 158, 45, 41, 57, 91 },   // left = dc
      { 91, 38, 101, 102, 124, 141, 49, 48, 45, 73 },   // left = v
      { 66, 28, 27, 177, 225, 178, 32, 27, 52, 114 },   // left = h
      { 106, 23, 50, 101, 134, 148, 64, 50, 49, 107 },  // left = d45
      { 75, 24, 32, 118, 66, 143, 42, 28, 57, 74 },     // left = d135
      { 95, 24, 40, 142, 56, 141, 72, 121, 129, 255 },  // left = d117
      { 71, 14, 25, 126, 117, 201, 28, 21, 117, 89 },   // left = d153
      { 85, 16, 37, 110, 163, 178, 41, 28, 48, 134 },   // left = d207
      { 86, 25, 32, 83, 105, 133, 58, 81, 46, 95 },     // left = d63
      { 79, 25, 38, 75, 150, 255, 30, 49, 34, 51 },     // left = smooth
      { 68, 59, 48, 122, 193, 158, 43, 46, 46, 112 },   // left = paeth
  },
  {
      // above = v
      { 66, 21, 118, 111, 145, 107, 27, 50, 27, 54 },    // left = dc
      { 52, 25, 167, 81, 120, 101, 34, 55, 19, 32 },     // left = v
      { 56, 18, 72, 134, 208, 139, 31, 34, 27, 89 },     // left = h
      { 75, 21, 94, 88, 134, 123, 49, 57, 30, 68 },      // left = d45
      { 54, 18, 95, 96, 78, 107, 33, 49, 28, 65 },       // left = d135
      { 61, 19, 121, 131, 58, 101, 56, 143, 120, 255 },  // left = d117
      { 53, 13, 78, 103, 110, 147, 31, 41, 64, 77 },     // left = d153
      { 69, 14, 78, 93, 167, 121, 31, 39, 25, 113 },     // left = d207
      { 64, 18, 103, 79, 90, 108, 34, 73, 27, 69 },      // left = d63
      { 52, 20, 103, 61, 161, 255, 22, 42, 16, 35 },     // left = smooth
      { 50, 31, 124, 92, 161, 120, 50, 53, 23, 60 },     // left = paeth
  },
  {
      // above = h
      { 94, 29, 31, 158, 214, 178, 35, 31, 72, 111 },   // left = dc
      { 72, 37, 72, 149, 184, 177, 43, 40, 53, 105 },   // left = v
      { 53, 21, 14, 196, 242, 209, 29, 19, 55, 145 },   // left = h
      { 93, 36, 36, 104, 176, 166, 56, 37, 49, 141 },   // left = d45
      { 84, 32, 27, 124, 108, 143, 38, 36, 76, 134 },   // left = d135
      { 82, 31, 47, 142, 122, 161, 83, 73, 126, 255 },  // left = d117
      { 66, 16, 20, 133, 148, 210, 30, 17, 113, 104 },  // left = d153
      { 76, 16, 17, 129, 207, 181, 41, 20, 46, 163 },   // left = d207
      { 72, 38, 21, 100, 142, 171, 37, 70, 49, 111 },   // left = d63
      { 61, 30, 27, 115, 208, 255, 27, 31, 44, 63 },    // left = smooth
      { 53, 45, 29, 157, 222, 185, 49, 37, 55, 102 },   // left = paeth
  },
  {
      // above = d45
      { 96, 18, 37, 98, 138, 154, 68, 56, 59, 96 },    // left = dc
      { 73, 18, 92, 81, 125, 132, 75, 64, 27, 67 },    // left = v
      { 73, 17, 27, 128, 213, 154, 56, 44, 32, 105 },  // left = h
      { 101, 20, 21, 75, 138, 138, 82, 56, 23, 154 },  // left = d45
      { 71, 15, 33, 91, 70, 150, 62, 55, 38, 118 },    // left = d135
      { 80, 19, 38, 116, 69, 122, 88, 132, 92, 255 },  // left = d117
      { 68, 11, 22, 101, 116, 179, 52, 44, 85, 96 },   // left = d153
      { 101, 8, 59, 77, 151, 170, 53, 41, 35, 172 },   // left = d207
      { 82, 19, 24, 81, 172, 129, 82, 128, 43, 108 },  // left = d63
      { 66, 18, 42, 64, 143, 255, 52, 52, 25, 83 },    // left = smooth
      { 57, 24, 42, 85, 169, 145, 104, 71, 34, 86 },   // left = paeth
  },
  {
      // above = d135
      { 85, 15, 29, 113, 83, 176, 26, 29, 70, 110 },    // left = dc
      { 78, 28, 49, 111, 91, 141, 30, 42, 48, 75 },     // left = v
      { 56, 21, 16, 146, 190, 178, 23, 31, 49, 92 },    // left = h
      { 70, 19, 20, 65, 90, 173, 97, 36, 57, 98 },      // left = d45
      { 77, 14, 26, 110, 51, 156, 34, 35, 54, 74 },     // left = d135
      { 78, 18, 36, 153, 47, 131, 62, 102, 155, 255 },  // left = d117
      { 56, 11, 15, 115, 85, 196, 32, 45, 81, 96 },     // left = d153
      { 90, 18, 24, 95, 126, 159, 34, 31, 46, 136 },    // left = d207
      { 80, 23, 28, 90, 75, 141, 39, 50, 46, 87 },      // left = d63
      { 63, 22, 31, 91, 110, 255, 26, 43, 51, 51 },     // left = smooth
      { 66, 32, 31, 122, 145, 165, 40, 43, 56, 79 },    // left = paeth
  },
  {
      // above = d117
      { 81, 16, 61, 170, 74, 105, 54, 105, 113, 255 },  // left = dc
      { 74, 20, 86, 163, 64, 97, 65, 129, 101, 255 },   // left = v
      { 63, 15, 47, 168, 141, 176, 69, 77, 77, 255 },   // left = h
      { 70, 17, 59, 97, 78, 114, 74, 122, 80, 255 },    // left = d45
      { 78, 13, 50, 153, 34, 126, 75, 114, 120, 255 },  // left = d135
      { 72, 16, 69, 159, 28, 108, 63, 134, 107, 255 },  // left = d117
      { 66, 9, 47, 131, 79, 148, 41, 88, 105, 255 },    // left = d153
      { 78, 12, 60, 119, 105, 133, 47, 95, 63, 255 },   // left = d207
      { 82, 21, 58, 128, 61, 98, 64, 136, 91, 255 },    // left = d63
      { 23, 26, 28, 96, 85, 128, 51, 64, 85, 128 },     // left = smooth
      { 58, 27, 62, 162, 109, 151, 75, 106, 78, 255 },  // left = paeth
  },
  {
      // above = d153
      { 91, 18, 25, 121, 166, 173, 25, 25, 128, 102 },  // left = dc
      { 80, 27, 51, 111, 141, 147, 45, 38, 70, 85 },    // left = v
      { 53, 12, 11, 154, 197, 225, 17, 17, 74, 145 },   // left = h
      { 93, 27, 23, 111, 143, 188, 43, 39, 69, 112 },   // left = d45
      { 83, 15, 21, 118, 67, 178, 40, 33, 73, 92 },     // left = d135
      { 94, 13, 31, 132, 66, 110, 61, 82, 148, 255 },   // left = d117
      { 76, 9, 11, 96, 105, 201, 16, 13, 157, 97 },     // left = d153
      { 70, 10, 12, 100, 172, 201, 23, 17, 53, 158 },   // left = d207
      { 114, 25, 21, 104, 108, 163, 30, 47, 53, 111 },  // left = d63
      { 70, 16, 21, 80, 157, 255, 25, 30, 81, 69 },     // left = smooth
      { 87, 32, 26, 120, 191, 168, 32, 33, 70, 118 },   // left = paeth
  },
  {
      // above = d207
      { 98, 20, 39, 122, 168, 188, 38, 36, 54, 132 },   // left = dc
      { 81, 37, 62, 97, 122, 153, 38, 43, 36, 118 },    // left = v
      { 71, 21, 22, 154, 227, 183, 37, 31, 46, 140 },   // left = h
      { 90, 34, 19, 93, 144, 194, 65, 47, 41, 163 },    // left = d45
      { 78, 20, 27, 91, 93, 173, 57, 52, 49, 113 },     // left = d135
      { 79, 25, 45, 121, 101, 147, 69, 56, 122, 255 },  // left = d117
      { 73, 13, 19, 105, 122, 206, 40, 28, 91, 126 },   // left = d153
      { 101, 14, 22, 87, 153, 169, 33, 25, 26, 175 },   // left = d207
      { 81, 28, 23, 86, 115, 169, 48, 56, 41, 111 },    // left = d63
      { 70, 24, 30, 90, 180, 255, 38, 26, 36, 82 },     // left = smooth
      { 61, 37, 30, 94, 189, 163, 76, 50, 36, 127 },    // left = paeth
  },
  {
      // above = d63
      { 77, 13, 46, 86, 138, 117, 55, 88, 34, 68 },     // left = dc
      { 68, 17, 80, 64, 105, 108, 66, 115, 32, 45 },    // left = v
      { 62, 13, 37, 124, 210, 131, 46, 57, 28, 103 },   // left = h
      { 88, 15, 45, 73, 134, 145, 73, 101, 37, 87 },    // left = d45
      { 68, 16, 35, 78, 81, 133, 54, 71, 33, 67 },      // left = d135
      { 71, 16, 57, 108, 61, 135, 71, 184, 113, 255 },  // left = d117
      { 55, 10, 27, 69, 107, 158, 39, 76, 82, 95 },     // left = d153
      { 80, 9, 38, 78, 153, 145, 50, 63, 28, 123 },     // left = d207
      { 86, 12, 33, 49, 107, 135, 64, 134, 57, 89 },    // left = d63
      { 56, 19, 55, 60, 163, 255, 38, 84, 22, 36 },     // left = smooth
      { 53, 17, 60, 69, 151, 126, 73, 113, 26, 80 },    // left = paeth
  },
  {
      // above = smooth
      { 79, 16, 46, 89, 167, 255, 22, 36, 29, 42 },   // left = dc
      { 63, 22, 88, 71, 131, 255, 26, 41, 21, 35 },   // left = v
      { 51, 18, 28, 142, 232, 255, 26, 25, 25, 75 },  // left = h
      { 75, 18, 43, 70, 140, 255, 37, 49, 34, 89 },   // left = d45
      { 70, 14, 35, 87, 83, 255, 30, 36, 34, 50 },    // left = d135
      { 23, 26, 28, 96, 85, 128, 51, 64, 85, 128 },   // left = d117
      { 74, 12, 33, 83, 128, 255, 27, 33, 58, 68 },   // left = d153
      { 66, 11, 30, 77, 179, 255, 21, 27, 23, 113 },  // left = d207
      { 68, 22, 40, 65, 118, 255, 28, 61, 30, 50 },   // left = d63
      { 60, 18, 44, 69, 141, 255, 18, 32, 22, 40 },   // left = smooth
      { 52, 32, 54, 96, 194, 255, 33, 37, 25, 53 },   // left = paeth
  },
  {
      // above = paeth
      { 76, 47, 67, 123, 182, 150, 41, 52, 55, 97 },    // left = dc
      { 69, 40, 125, 102, 138, 138, 42, 55, 32, 70 },   // left = v
      { 46, 28, 27, 160, 232, 169, 34, 21, 32, 122 },   // left = h
      { 78, 35, 41, 99, 128, 124, 49, 43, 35, 111 },    // left = d45
      { 66, 28, 47, 100, 113, 145, 37, 40, 72, 93 },    // left = d135
      { 77, 37, 76, 134, 124, 124, 65, 122, 88, 255 },  // left = d117
      { 53, 23, 38, 108, 128, 204, 26, 32, 115, 114 },  // left = d153
      { 65, 20, 29, 101, 202, 186, 29, 24, 29, 188 },   // left = d207
      { 71, 24, 49, 81, 126, 151, 36, 65, 28, 93 },     // left = d63
      { 54, 36, 53, 94, 193, 255, 25, 38, 20, 64 },     // left = smooth
      { 52, 54, 60, 108, 176, 168, 47, 44, 50, 105 },   // left = paeth
  },
};

static const aom_prob default_if_y_probs[BLOCK_SIZE_GROUPS][INTRA_MODES - 1] = {
  { 88, 16, 47, 133, 143, 150, 70, 48, 84, 122 },  // block_size < 8x8
  { 75, 26, 51, 120, 158, 157, 44, 45, 56, 102 },  // block_size < 16x16
  { 73, 24, 60, 115, 184, 164, 26, 36, 32, 63 },   // block_size < 32x32
  { 96, 27, 50, 107, 221, 148, 16, 22, 14, 39 },   // block_size >= 32x32
};

static const aom_prob default_uv_probs[INTRA_MODES][INTRA_MODES - 1] = {
  { 199, 3, 79, 179, 220, 109, 38, 50, 68, 138 },   // y = dc
  { 17, 2, 219, 136, 131, 58, 21, 106, 23, 41 },    // y = v
  { 26, 1, 5, 244, 253, 138, 16, 21, 68, 205 },     // y = h
  { 183, 3, 66, 94, 195, 97, 101, 104, 41, 178 },   // y = d45
  { 178, 2, 36, 158, 99, 175, 21, 29, 105, 77 },    // y = d135
  { 154, 3, 65, 219, 40, 48, 45, 95, 146, 255 },    // y = d117
  { 167, 1, 16, 160, 214, 187, 10, 10, 200, 155 },  // y = d153
  { 154, 2, 18, 178, 238, 132, 25, 21, 34, 221 },   // y = d207
  { 153, 4, 76, 85, 157, 90, 38, 165, 46, 104 },    // y = d63
  { 163, 3, 68, 87, 190, 255, 19, 27, 25, 46 },     // y = smooth
  { 185, 7, 113, 171, 203, 57, 18, 69, 49, 104 },   // y = paeth
};

#else

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const aom_prob av1_kf_y_mode_prob[INTRA_MODES][INTRA_MODES][INTRA_MODES - 1] = {
  {
      // above = dc
      { 137, 30, 42, 148, 151, 207, 70, 52, 91 },   // left = dc
      { 92, 45, 102, 136, 116, 180, 74, 90, 100 },  // left = v
      { 73, 32, 19, 187, 222, 215, 46, 34, 100 },   // left = h
      { 91, 30, 32, 116, 121, 186, 93, 86, 94 },    // left = d45
      { 72, 35, 36, 149, 68, 206, 68, 63, 105 },    // left = d135
      { 73, 31, 28, 138, 57, 124, 55, 122, 151 },   // left = d117
      { 67, 23, 21, 140, 126, 197, 40, 37, 171 },   // left = d153
      { 86, 27, 28, 128, 154, 212, 45, 43, 53 },    // left = d207
      { 74, 32, 27, 107, 86, 160, 63, 134, 102 },   // left = d63
      { 59, 67, 44, 140, 161, 202, 78, 67, 119 }    // left = tm
  },
  {
      // above = v
      { 63, 36, 126, 146, 123, 158, 60, 90, 96 },   // left = dc
      { 43, 46, 168, 134, 107, 128, 69, 142, 92 },  // left = v
      { 44, 29, 68, 159, 201, 177, 50, 57, 77 },    // left = h
      { 58, 38, 76, 114, 97, 172, 78, 133, 92 },    // left = d45
      { 46, 41, 76, 140, 63, 184, 69, 112, 57 },    // left = d135
      { 38, 32, 85, 140, 46, 112, 54, 151, 133 },   // left = d117
      { 39, 27, 61, 131, 110, 175, 44, 75, 136 },   // left = d153
      { 52, 30, 74, 113, 130, 175, 51, 64, 58 },    // left = d207
      { 47, 35, 80, 100, 74, 143, 64, 163, 74 },    // left = d63
      { 36, 61, 116, 114, 128, 162, 80, 125, 82 }   // left = tm
  },
  {
      // above = h
      { 82, 26, 26, 171, 208, 204, 44, 32, 105 },  // left = dc
      { 55, 44, 68, 166, 179, 192, 57, 57, 108 },  // left = v
      { 42, 26, 11, 199, 241, 228, 23, 15, 85 },   // left = h
      { 68, 42, 19, 131, 160, 199, 55, 52, 83 },   // left = d45
      { 58, 50, 25, 139, 115, 232, 39, 52, 118 },  // left = d135
      { 50, 35, 33, 153, 104, 162, 64, 59, 131 },  // left = d117
      { 44, 24, 16, 150, 177, 202, 33, 19, 156 },  // left = d153
      { 55, 27, 12, 153, 203, 218, 26, 27, 49 },   // left = d207
      { 53, 49, 21, 110, 116, 168, 59, 80, 76 },   // left = d63
      { 38, 72, 19, 168, 203, 212, 50, 50, 107 }   // left = tm
  },
  {
      // above = d45
      { 103, 26, 36, 129, 132, 201, 83, 80, 93 },  // left = dc
      { 59, 38, 83, 112, 103, 162, 98, 136, 90 },  // left = v
      { 62, 30, 23, 158, 200, 207, 59, 57, 50 },   // left = h
      { 67, 30, 29, 84, 86, 191, 102, 91, 59 },    // left = d45
      { 60, 32, 33, 112, 71, 220, 64, 89, 104 },   // left = d135
      { 53, 26, 34, 130, 56, 149, 84, 120, 103 },  // left = d117
      { 53, 21, 23, 133, 109, 210, 56, 77, 172 },  // left = d153
      { 77, 19, 29, 112, 142, 228, 55, 66, 36 },   // left = d207
      { 61, 29, 29, 93, 97, 165, 83, 175, 162 },   // left = d63
      { 47, 47, 43, 114, 137, 181, 100, 99, 95 }   // left = tm
  },
  {
      // above = d135
      { 69, 23, 29, 128, 83, 199, 46, 44, 101 },   // left = dc
      { 53, 40, 55, 139, 69, 183, 61, 80, 110 },   // left = v
      { 40, 29, 19, 161, 180, 207, 43, 24, 91 },   // left = h
      { 60, 34, 19, 105, 61, 198, 53, 64, 89 },    // left = d45
      { 52, 31, 22, 158, 40, 209, 58, 62, 89 },    // left = d135
      { 44, 31, 29, 147, 46, 158, 56, 102, 198 },  // left = d117
      { 35, 19, 12, 135, 87, 209, 41, 45, 167 },   // left = d153
      { 55, 25, 21, 118, 95, 215, 38, 39, 66 },    // left = d207
      { 51, 38, 25, 113, 58, 164, 70, 93, 97 },    // left = d63
      { 47, 54, 34, 146, 108, 203, 72, 103, 151 }  // left = tm
  },
  {
      // above = d117
      { 64, 19, 37, 156, 66, 138, 49, 95, 133 },   // left = dc
      { 46, 27, 80, 150, 55, 124, 55, 121, 135 },  // left = v
      { 36, 23, 27, 165, 149, 166, 54, 64, 118 },  // left = h
      { 53, 21, 36, 131, 63, 163, 60, 109, 81 },   // left = d45
      { 40, 26, 35, 154, 40, 185, 51, 97, 123 },   // left = d135
      { 35, 19, 34, 179, 19, 97, 48, 129, 124 },   // left = d117
      { 36, 20, 26, 136, 62, 164, 33, 77, 154 },   // left = d153
      { 45, 18, 32, 130, 90, 157, 40, 79, 91 },    // left = d207
      { 45, 26, 28, 129, 45, 129, 49, 147, 123 },  // left = d63
      { 38, 44, 51, 136, 74, 162, 57, 97, 121 }    // left = tm
  },
  {
      // above = d153
      { 75, 17, 22, 136, 138, 185, 32, 34, 166 },  // left = dc
      { 56, 39, 58, 133, 117, 173, 48, 53, 187 },  // left = v
      { 35, 21, 12, 161, 212, 207, 20, 23, 145 },  // left = h
      { 56, 29, 19, 117, 109, 181, 55, 68, 112 },  // left = d45
      { 47, 29, 17, 153, 64, 220, 59, 51, 114 },   // left = d135
      { 46, 16, 24, 136, 76, 147, 41, 64, 172 },   // left = d117
      { 34, 17, 11, 108, 152, 187, 13, 15, 209 },  // left = d153
      { 51, 24, 14, 115, 133, 209, 32, 26, 104 },  // left = d207
      { 55, 30, 18, 122, 79, 179, 44, 88, 116 },   // left = d63
      { 37, 49, 25, 129, 168, 164, 41, 54, 148 }   // left = tm
  },
  {
      // above = d207
      { 82, 22, 32, 127, 143, 213, 39, 41, 70 },   // left = dc
      { 62, 44, 61, 123, 105, 189, 48, 57, 64 },   // left = v
      { 47, 25, 17, 175, 222, 220, 24, 30, 86 },   // left = h
      { 68, 36, 17, 106, 102, 206, 59, 74, 74 },   // left = d45
      { 57, 39, 23, 151, 68, 216, 55, 63, 58 },    // left = d135
      { 49, 30, 35, 141, 70, 168, 82, 40, 115 },   // left = d117
      { 51, 25, 15, 136, 129, 202, 38, 35, 139 },  // left = d153
      { 68, 26, 16, 111, 141, 215, 29, 28, 28 },   // left = d207
      { 59, 39, 19, 114, 75, 180, 77, 104, 42 },   // left = d63
      { 40, 61, 26, 126, 152, 206, 61, 59, 93 }    // left = tm
  },
  {
      // above = d63
      { 78, 23, 39, 111, 117, 170, 74, 124, 94 },   // left = dc
      { 48, 34, 86, 101, 92, 146, 78, 179, 134 },   // left = v
      { 47, 22, 24, 138, 187, 178, 68, 69, 59 },    // left = h
      { 56, 25, 33, 105, 112, 187, 95, 177, 129 },  // left = d45
      { 48, 31, 27, 114, 63, 183, 82, 116, 56 },    // left = d135
      { 43, 28, 37, 121, 63, 123, 61, 192, 169 },   // left = d117
      { 42, 17, 24, 109, 97, 177, 56, 76, 122 },    // left = d153
      { 58, 18, 28, 105, 139, 182, 70, 92, 63 },    // left = d207
      { 46, 23, 32, 74, 86, 150, 67, 183, 88 },     // left = d63
      { 36, 38, 48, 92, 122, 165, 88, 137, 91 }     // left = tm
  },
  {
      // above = tm
      { 65, 70, 60, 155, 159, 199, 61, 60, 81 },    // left = dc
      { 44, 78, 115, 132, 119, 173, 71, 112, 93 },  // left = v
      { 39, 38, 21, 184, 227, 206, 42, 32, 64 },    // left = h
      { 58, 47, 36, 124, 137, 193, 80, 82, 78 },    // left = d45
      { 49, 50, 35, 144, 95, 205, 63, 78, 59 },     // left = d135
      { 41, 53, 52, 148, 71, 142, 65, 128, 51 },    // left = d117
      { 40, 36, 28, 143, 143, 202, 40, 55, 137 },   // left = d153
      { 52, 34, 29, 129, 183, 227, 42, 35, 43 },    // left = d207
      { 42, 44, 44, 104, 105, 164, 64, 130, 80 },   // left = d63
      { 43, 81, 53, 140, 169, 204, 68, 84, 72 }     // left = tm
  }
};

static const aom_prob default_if_y_probs[BLOCK_SIZE_GROUPS][INTRA_MODES - 1] = {
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  { 65, 32, 18, 144, 162, 194, 41, 51, 98 },   // block_size < 8x8
  { 132, 68, 18, 165, 217, 196, 45, 40, 78 },  // block_size < 16x16
  { 173, 80, 19, 176, 240, 193, 64, 35, 46 },  // block_size < 32x32
  { 221, 135, 38, 194, 248, 121, 96, 85, 29 }  // block_size >= 32x32
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};

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static const aom_prob default_uv_probs[INTRA_MODES][INTRA_MODES - 1] = {
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  { 120, 7, 76, 176, 208, 126, 28, 54, 103 },   // y = dc
  { 48, 12, 154, 155, 139, 90, 34, 117, 119 },  // y = v
  { 67, 6, 25, 204, 243, 158, 13, 21, 96 },     // y = h
  { 97, 5, 44, 131, 176, 139, 48, 68, 97 },     // y = d45
  { 83, 5, 42, 156, 111, 152, 26, 49, 152 },    // y = d135
  { 80, 5, 58, 178, 74, 83, 33, 62, 145 },      // y = d117
  { 86, 5, 32, 154, 192, 168, 14, 22, 163 },    // y = d153
  { 85, 5, 32, 156, 216, 148, 19, 29, 73 },     // y = d207
  { 77, 7, 64, 116, 132, 122, 37, 126, 120 },   // y = d63
  { 101, 21, 107, 181, 192, 103, 19, 67, 125 }  // y = tm
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};

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#endif  // CONFIG_ALT_INTRA

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#if CONFIG_EXT_PARTITION_TYPES
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static const aom_prob
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    default_partition_probs[PARTITION_CONTEXTS][EXT_PARTITION_TYPES - 1] = {
      // 8x8 -> 4x4
      { 199, 122, 141, 128, 128, 128, 128 },  // a/l both not split
      { 147, 63, 159, 128, 128, 128, 128 },   // a split, l not split
      { 148, 133, 118, 128, 128, 128, 128 },  // l split, a not split
      { 121, 104, 114, 128, 128, 128, 128 },  // a/l both split
      // 16x16 -> 8x8
      { 174, 73, 87, 128, 128, 128, 128 },  // a/l both not split
      { 92, 41, 83, 128, 128, 128, 128 },   // a split, l not split
      { 82, 99, 50, 128, 128, 128, 128 },   // l split, a not split
      { 53, 39, 39, 128, 128, 128, 128 },   // a/l both split
      // 32x32 -> 16x16
      { 177, 58, 59, 128, 128, 128, 128 },  // a/l both not split
      { 68, 26, 63, 128, 128, 128, 128 },   // a split, l not split
      { 52, 79, 25, 128, 128, 128, 128 },   // l split, a not split
      { 17, 14, 12, 128, 128, 128, 128 },   // a/l both split
      // 64x64 -> 32x32
      { 222, 34, 30, 128, 128, 128, 128 },  // a/l both not split
      { 72, 16, 44, 128, 128, 128, 128 },   // a split, l not split
      { 58, 32, 12, 128, 128, 128, 128 },   // l split, a not split
      { 10, 7, 6, 128, 128, 128, 128 },     // a/l both split
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#if CONFIG_EXT_PARTITION
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      // 128x128 -> 64x64
      { 222, 34, 30, 128, 128, 128, 128 },  // a/l both not split
      { 72, 16, 44, 128, 128, 128, 128 },   // a split, l not split
      { 58, 32, 12, 128, 128, 128, 128 },   // l split, a not split
      { 10, 7, 6, 128, 128, 128, 128 },     // a/l both split
#endif                                      // CONFIG_EXT_PARTITION
    };
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#else
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static const aom_prob
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    default_partition_probs[PARTITION_CONTEXTS][PARTITION_TYPES - 1] = {
      // 8x8 -> 4x4
      { 199, 122, 141 },  // a/l both not split
      { 147, 63, 159 },   // a split, l not split
      { 148, 133, 118 },  // l split, a not split
      { 121, 104, 114 },  // a/l both split
      // 16x16 -> 8x8
      { 174, 73, 87 },  // a/l both not split
      { 92, 41, 83 },   // a split, l not split
      { 82, 99, 50 },   // l split, a not split
      { 53, 39, 39 },   // a/l both split
      // 32x32 -> 16x16
      { 177, 58, 59 },  // a/l both not split
      { 68, 26, 63 },   // a split, l not split
      { 52, 79, 25 },   // l split, a not split
      { 17, 14, 12 },   // a/l both split
      // 64x64 -> 32x32
      { 222, 34, 30 },  // a/l both not split
      { 72, 16, 44 },   // a split, l not split
      { 58, 32, 12 },   // l split, a not split
      { 10, 7, 6 },     // a/l both split
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#if CONFIG_EXT_PARTITION
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      // 128x128 -> 64x64
      { 222, 34, 30 },  // a/l both not split
      { 72, 16, 44 },   // a split, l not split
      { 58, 32, 12 },   // l split, a not split
      { 10, 7, 6 },     // a/l both split
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#endif  // CONFIG_EXT_PARTITION
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    };
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#endif  // CONFIG_EXT_PARTITION_TYPES
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#if CONFIG_REF_MV
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static const aom_prob default_newmv_prob[NEWMV_MODE_CONTEXTS] = {
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  200, 180, 150, 150, 110, 70, 60,
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};

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static const aom_prob default_zeromv_prob[ZEROMV_MODE_CONTEXTS] = {
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  192, 64,
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};

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static const aom_prob default_refmv_prob[REFMV_MODE_CONTEXTS] = {
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  220, 220, 200, 200, 180, 128, 30, 220, 30,
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};
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static const aom_prob default_drl_prob[DRL_MODE_CONTEXTS] = { 128, 160, 180,
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                                                              128, 160 };
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#if CONFIG_EXT_INTER
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static const aom_prob default_new2mv_prob = 180;
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#endif  // CONFIG_EXT_INTER
#endif  // CONFIG_REF_MV
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static const aom_prob
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    default_inter_mode_probs[INTER_MODE_CONTEXTS][INTER_MODES - 1] = {
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#if CONFIG_EXT_INTER
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      // TODO(zoeliu): To adjust the initial default probs
      { 2, 173, 34, 173 },  // 0 = both zero mv
      { 7, 145, 85, 145 },  // 1 = one zero mv + one a predicted mv
      { 7, 166, 63, 166 },  // 2 = two predicted mvs
      { 7, 94, 66, 128 },   // 3 = one predicted/zero and one new mv
      { 8, 64, 46, 128 },   // 4 = two new mvs
      { 17, 81, 31, 128 },  // 5 = one intra neighbour + x
      { 25, 29, 30, 96 },   // 6 = two intra neighbours
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#else
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      { 2, 173, 34 },  // 0 = both zero mv
      { 7, 145, 85 },  // 1 = one zero mv + one a predicted mv
      { 7, 166, 63 },  // 2 = two predicted mvs
      { 7, 94, 66 },   // 3 = one predicted/zero and one new mv
      { 8, 64, 46 },   // 4 = two new mvs
      { 17, 81, 31 },  // 5 = one intra neighbour + x
      { 25, 29, 30 },  // 6 = two intra neighbours
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#endif  // CONFIG_EXT_INTER
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    };
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#if CONFIG_EXT_INTER
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static const aom_prob default_inter_compound_mode_probs
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    [INTER_MODE_CONTEXTS][INTER_COMPOUND_MODES - 1] = {
      { 2, 173, 68, 192, 64, 192, 128, 180, 180 },   // 0 = both zero mv
      { 7, 145, 160, 192, 64, 192, 128, 180, 180 },  // 1 = 1 zero + 1 predicted
      { 7, 166, 126, 192, 64, 192, 128, 180, 180 },  // 2 = two predicted mvs
      { 7, 94, 132, 192, 64, 192, 128, 180, 180 },   // 3 = 1 pred/zero, 1 new
      { 8, 64, 64, 192, 64, 192, 128, 180, 180 },    // 4 = two new mvs
      { 17, 81, 52, 192, 64, 192, 128, 180, 180 },   // 5 = one intra neighbour
      { 25, 29, 50, 192, 64, 192, 128, 180, 180 },   // 6 = two intra neighbours
    };
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#if CONFIG_COMPOUND_SEGMENT
static const aom_prob
    default_compound_type_probs[BLOCK_SIZES][COMPOUND_TYPES - 1] = {
      { 208, 200 }, { 208, 200 }, { 208, 200 }, { 208, 200 }, { 208, 200 },
      { 208, 200 }, { 216, 200 }, { 216, 200 }, { 216, 200 }, { 224, 200 },
      { 224, 200 }, { 240, 200 }, { 240, 200 },
#if CONFIG_EXT_PARTITION
      { 255, 200 }, { 255, 200 }, { 255, 200 },
#endif  // CONFIG_EXT_PARTITION
    };
#else  // !CONFIG_COMPOUND_SEGMENT
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static const aom_prob default_compound_type_probs[BLOCK_SIZES]
                                                 [COMPOUND_TYPES - 1] = {
                                                   { 208 }, { 208 }, { 208 },
                                                   { 208 }, { 208 }, { 208 },
                                                   { 216 }, { 216 }, { 216 },
                                                   { 224 }, { 224 }, { 240 },
                                                   { 240 },
#if CONFIG_EXT_PARTITION
                                                   { 255 }, { 255 }, { 255 },
#endif  // CONFIG_EXT_PARTITION
                                                 };
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#endif  // CONFIG_COMPOUND_SEGMENT
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static const aom_prob default_interintra_prob[BLOCK_SIZE_GROUPS] = {
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  208, 208, 208, 208,
};

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static const aom_prob
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    default_interintra_mode_prob[BLOCK_SIZE_GROUPS][INTERINTRA_MODES - 1] = {
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      { 65, 32, 18, 144, 162, 194, 41, 51, 98 },   // block_size < 8x8
      { 132, 68, 18, 165, 217, 196, 45, 40, 78 },  // block_size < 16x16
      { 173, 80, 19, 176, 240, 193, 64, 35, 46 },  // block_size < 32x32
      { 221, 135, 38, 194, 248, 121, 96, 85, 29 }  // block_size >= 32x32
    };
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static const aom_prob default_wedge_interintra_prob[BLOCK_SIZES] = {
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  208, 208, 208, 208, 208, 208, 216, 216, 216, 224, 224, 224, 240,
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#if CONFIG_EXT_PARTITION
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  208, 208, 208
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#endif  // CONFIG_EXT_PARTITION
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};
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#endif  // CONFIG_EXT_INTER

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// Change this section appropriately once warped motion is supported
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#if CONFIG_MOTION_VAR && !CONFIG_WARPED_MOTION
const aom_tree_index av1_motion_mode_tree[TREE_SIZE(MOTION_MODES)] = {
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  -SIMPLE_TRANSLATION, -OBMC_CAUSAL
};
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static const aom_prob default_motion_mode_prob[BLOCK_SIZES]
                                              [MOTION_MODES - 1] = {
                                                { 255 }, { 255 }, { 255 },
                                                { 151 }, { 153 }, { 144 },
                                                { 178 }, { 165 }, { 160 },
                                                { 207 }, { 195 }, { 168 },
                                                { 244 },
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#if CONFIG_EXT_PARTITION
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                                                { 252 }, { 252 }, { 252 },
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#endif  // CONFIG_EXT_PARTITION
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                                              };
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#elif !CONFIG_MOTION_VAR && CONFIG_WARPED_MOTION
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const aom_tree_index av1_motion_mode_tree[TREE_SIZE(MOTION_MODES)] = {
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  -SIMPLE_TRANSLATION, -WARPED_CAUSAL
};
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static const aom_prob default_motion_mode_prob[BLOCK_SIZES]
                                              [MOTION_MODES - 1] = {
                                                { 255 }, { 255 }, { 255 },
                                                { 151 }, { 153 }, { 144 },
                                                { 178 }, { 165 }, { 160 },
                                                { 207 }, { 195 }, { 168 },
                                                { 244 },
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#if CONFIG_EXT_PARTITION
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                                                { 252 }, { 252 }, { 252 },
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#endif  // CONFIG_EXT_PARTITION
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                                              };
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#elif CONFIG_MOTION_VAR && CONFIG_WARPED_MOTION
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const aom_tree_index av1_motion_mode_tree[TREE_SIZE(MOTION_MODES)] = {
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  -SIMPLE_TRANSLATION, 2, -OBMC_CAUSAL, -WARPED_CAUSAL,
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};
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static const aom_prob default_motion_mode_prob[BLOCK_SIZES][MOTION_MODES - 1] =
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    {
      { 255, 200 }, { 255, 200 }, { 255, 200 }, { 151, 200 }, { 153, 200 },
      { 144, 200 }, { 178, 200 }, { 165, 200 }, { 160, 200 }, { 207, 200 },
      { 195, 200 }, { 168, 200 }, { 244, 200 },
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#if CONFIG_EXT_PARTITION
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      { 252, 200 }, { 252, 200 }, { 252, 200 },
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#endif  // CONFIG_EXT_PARTITION
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    };
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// Probability for the case that only 1 additional motion mode is allowed
static const aom_prob default_obmc_prob[BLOCK_SIZES] = {
  255, 255, 255, 151, 153, 144, 178, 165, 160, 207, 195, 168, 244,
#if CONFIG_EXT_PARTITION
  252, 252, 252,
#endif  // CONFIG_EXT_PARTITION
};
#endif
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#if CONFIG_DELTA_Q
static const aom_prob default_delta_q_probs[DELTA_Q_CONTEXTS] = { 220, 220,
                                                                  220 };
#endif
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int av1_intra_mode_ind[INTRA_MODES];
int av1_intra_mode_inv[INTRA_MODES];
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int av1_inter_mode_ind[INTER_MODES];
int av1_inter_mode_inv[INTER_MODES];
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/* Array indices are identical to previously-existing INTRAMODECONTEXTNODES. */
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#if CONFIG_ALT_INTRA
const aom_tree_index av1_intra_mode_tree[TREE_SIZE(INTRA_MODES)] = {
  -DC_PRED,   2,            /* 0 = DC_NODE */
  -TM_PRED,   4,            /* 1 = TM_NODE */
  -V_PRED,    6,            /* 2 = V_NODE */
  8,          12,           /* 3 = COM_NODE */
  -H_PRED,    10,           /* 4 = H_NODE */
  -D135_PRED, -D117_PRED,   /* 5 = D135_NODE */
  -D45_PRED,  14,           /* 6 = D45_NODE */
  -D63_PRED,  16,           /* 7 = D63_NODE */
  -D153_PRED, 18,           /* 8 = D153_NODE */
  -D207_PRED, -SMOOTH_PRED, /* 9 = D207_NODE */
};
#else
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const aom_tree_index av1_intra_mode_tree[TREE_SIZE(INTRA_MODES)] = {
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  -DC_PRED,   2,          /* 0 = DC_NODE */
  -TM_PRED,   4,          /* 1 = TM_NODE */
  -V_PRED,    6,          /* 2 = V_NODE */
  8,          12,         /* 3 = COM_NODE */
  -H_PRED,    10,         /* 4 = H_NODE */
  -D135_PRED, -D117_PRED, /* 5 = D135_NODE */
  -D45_PRED,  14,         /* 6 = D45_NODE */
  -D63_PRED,  16,         /* 7 = D63_NODE */
  -D153_PRED, -D207_PRED  /* 8 = D153_NODE */
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};
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#endif  // CONFIG_ALT_INTRA
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const aom_tree_index av1_inter_mode_tree[TREE_SIZE(INTER_MODES)] = {
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  -INTER_OFFSET(ZEROMV),    2,
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  -INTER_OFFSET(NEARESTMV), 4,
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#if CONFIG_EXT_INTER
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  -INTER_OFFSET(NEARMV),    6,
  -INTER_OFFSET(NEWMV),     -INTER_OFFSET(NEWFROMNEARMV)
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#else
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  -INTER_OFFSET(NEARMV),    -INTER_OFFSET(NEWMV)
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#endif  // CONFIG_EXT_INTER
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};

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#if CONFIG_EXT_INTER
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/* clang-format off */
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const aom_tree_index av1_interintra_mode_tree[TREE_SIZE(INTERINTRA_MODES)] = {
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  -II_DC_PRED, 2,                   /* 0 = II_DC_NODE     */
  -II_TM_PRED, 4,                   /* 1 = II_TM_NODE     */
  -II_V_PRED, 6,                    /* 2 = II_V_NODE      */
  8, 12,                            /* 3 = II_COM_NODE    */
  -II_H_PRED, 10,                   /* 4 = II_H_NODE      */
  -II_D135_PRED, -II_D117_PRED,     /* 5 = II_D135_NODE   */
  -II_D45_PRED, 14,                 /* 6 = II_D45_NODE    */
  -II_D63_PRED, 16,                 /* 7 = II_D63_NODE    */
  -II_D153_PRED, -II_D207_PRED      /* 8 = II_D153_NODE   */
};

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const aom_tree_index av1_inter_compound_mode_tree
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    [TREE_SIZE(INTER_COMPOUND_MODES)] = {
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  -INTER_COMPOUND_OFFSET(ZERO_ZEROMV), 2,
  -INTER_COMPOUND_OFFSET(NEAREST_NEARESTMV), 4,
  6, -INTER_COMPOUND_OFFSET(NEW_NEWMV),
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  8, 12,
  -INTER_COMPOUND_OFFSET(NEAR_NEARMV), 10,
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  -INTER_COMPOUND_OFFSET(NEAREST_NEARMV),
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      -INTER_COMPOUND_OFFSET(NEAR_NEARESTMV),
  14, 16,
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  -INTER_COMPOUND_OFFSET(NEAREST_NEWMV), -INTER_COMPOUND_OFFSET(NEW_NEARESTMV),
  -INTER_COMPOUND_OFFSET(NEAR_NEWMV), -INTER_COMPOUND_OFFSET(NEW_NEARMV)
};
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#if CONFIG_COMPOUND_SEGMENT
const aom_tree_index av1_compound_type_tree[TREE_SIZE(COMPOUND_TYPES)] = {
  -COMPOUND_AVERAGE, 2, -COMPOUND_WEDGE, -COMPOUND_SEG
};
#else  // !CONFIG_COMPOUND_SEGMENT
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const aom_tree_index av1_compound_type_tree[TREE_SIZE(COMPOUND_TYPES)] = {
  -COMPOUND_AVERAGE, -COMPOUND_WEDGE
};
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#endif  // CONFIG_COMPOUND_SEGMENT
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/* clang-format on */
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#endif  // CONFIG_EXT_INTER

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const aom_tree_index av1_partition_tree[TREE_SIZE(PARTITION_TYPES)] = {
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  -PARTITION_NONE, 2, -PARTITION_HORZ, 4, -PARTITION_VERT, -PARTITION_SPLIT
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};

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#if CONFIG_EXT_PARTITION_TYPES
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/* clang-format off */
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const aom_tree_index av1_ext_partition_tree[TREE_SIZE(EXT_PARTITION_TYPES)] = {
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  -PARTITION_NONE, 2,
  6, 4,
  8, -PARTITION_SPLIT,
  -PARTITION_HORZ, 10,
  -PARTITION_VERT, 12,
  -PARTITION_HORZ_A, -PARTITION_HORZ_B,
  -PARTITION_VERT_A, -PARTITION_VERT_B
};
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/* clang-format on */
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#endif  // CONFIG_EXT_PARTITION_TYPES

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static const aom_prob default_intra_inter_p[INTRA_INTER_CONTEXTS] = {
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  9, 102, 187, 225
};

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static const aom_prob default_comp_inter_p[COMP_INTER_CONTEXTS] = {
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  239, 183, 119, 96, 41
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};

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#if CONFIG_EXT_REFS
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static const aom_prob default_comp_ref_p[REF_CONTEXTS][FWD_REFS - 1] = {
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  // TODO(zoeliu): To adjust the initial prob values.
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  { 33, 16, 16 },
  { 77, 74, 74 },
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  { 142, 142, 142 },
  { 172, 170, 170 },
  { 238, 247, 247 }
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};
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static const aom_prob default_comp_bwdref_p[REF_CONTEXTS][BWD_REFS - 1] = {
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  { 16 }, { 74 }, { 142 }, { 170 }, { 247 }
};
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#else
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static const aom_prob default_comp_ref_p[REF_CONTEXTS][COMP_REFS - 1] = {
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  { 50 }, { 126 }, { 123 }, { 221 }, { 226 }
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};
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#endif  // CONFIG_EXT_REFS
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static const aom_prob default_single_ref_p[REF_CONTEXTS][SINGLE_REFS - 1] = {
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#if CONFIG_EXT_REFS
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  { 33, 16, 16, 16, 16 },
  { 77, 74, 74, 74, 74 },
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  { 142, 142, 142, 142, 142 },
  { 172, 170, 170, 170, 170 },
  { 238, 247, 247, 247, 247 }
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#else
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  { 33, 16 }, { 77, 74 }, { 142, 142 }, { 172, 170 }, { 238, 247 }
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#endif  // CONFIG_EXT_REFS
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};

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#if CONFIG_PALETTE
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const aom_tree_index av1_palette_size_tree[TREE_SIZE(PALETTE_SIZES)] = {
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  -TWO_COLORS,  2, -THREE_COLORS, 4,  -FOUR_COLORS,  6,
  -FIVE_COLORS, 8, -SIX_COLORS,   10, -SEVEN_COLORS, -EIGHT_COLORS,
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};

// TODO(huisu): tune these probs
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const aom_prob
    av1_default_palette_y_size_prob[PALETTE_BLOCK_SIZES][PALETTE_SIZES - 1] = {
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      { 96, 89, 100, 64, 77, 130 },   { 22, 15, 44, 16, 34, 82 },
      { 30, 19, 57, 18, 38, 86 },     { 94, 36, 104, 23, 43, 92 },
      { 116, 76, 107, 46, 65, 105 },  { 112, 82, 94, 40, 70, 112 },
      { 147, 124, 123, 58, 69, 103 }, { 180, 113, 136, 49, 45, 114 },
      { 107, 70, 87, 49, 154, 156 },  { 98, 105, 142, 63, 64, 152 },
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#if CONFIG_EXT_PARTITION
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      { 98, 105, 142, 63, 64, 152 },  { 98, 105, 142, 63, 64, 152 },
      { 98, 105, 142, 63, 64, 152 },
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#endif  // CONFIG_EXT_PARTITION
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    };
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const aom_prob
    av1_default_palette_uv_size_prob[PALETTE_BLOCK_SIZES][PALETTE_SIZES - 1] = {
      { 160, 196, 228, 213, 175, 230 }, { 87, 148, 208, 141, 166, 163 },
      { 72, 151, 204, 139, 155, 161 },  { 78, 135, 171, 104, 120, 173 },
      { 59, 92, 131, 78, 92, 142 },     { 75, 118, 149, 84, 90, 128 },
      { 89, 87, 92, 66, 66, 128 },      { 67, 53, 54, 55, 66, 93 },
      { 120, 130, 83, 171, 75, 214 },   { 72, 55, 66, 68, 79, 107 },
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#if CONFIG_EXT_PARTITION
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      { 72, 55, 66, 68, 79, 107 },      { 72, 55, 66, 68, 79, 107 },
      { 72, 55, 66, 68, 79, 107 },
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#endif  // CONFIG_EXT_PARTITION
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    };
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const aom_prob
    av1_default_palette_y_mode_prob[PALETTE_BLOCK_SIZES]
                                   [PALETTE_Y_MODE_CONTEXTS] = {
                                     { 240, 180, 100 }, { 240, 180, 100 },
                                     { 240, 180, 100 }, { 240, 180, 100 },
                                     { 240, 180, 100 }, { 240, 180, 100 },
                                     { 240, 180, 100 }, { 240, 180, 100 },
                                     { 240, 180, 100 }, { 240, 180, 100 },
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#if CONFIG_EXT_PARTITION
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                                     { 240, 180, 100 }, { 240, 180, 100 },
                                     { 240, 180, 100 },
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#endif  // CONFIG_EXT_PARTITION
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                                   };
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const aom_prob av1_default_palette_uv_mode_prob[2] = { 253, 229 };
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const aom_tree_index
    av1_palette_color_tree[PALETTE_MAX_SIZE - 1][TREE_SIZE(PALETTE_COLORS)] = {
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      { // 2 colors
        -PALETTE_COLOR_ONE, -PALETTE_COLOR_TWO },
      { // 3 colors
        -PALETTE_COLOR_ONE, 2, -PALETTE_COLOR_TWO, -PALETTE_COLOR_THREE },
      { // 4 colors
        -PALETTE_COLOR_ONE, 2, -PALETTE_COLOR_TWO, 4, -PALETTE_COLOR_THREE,
        -PALETTE_COLOR_FOUR },
      { // 5 colors
        -PALETTE_COLOR_ONE, 2, -PALETTE_COLOR_TWO, 4, -PALETTE_COLOR_THREE, 6,
        -PALETTE_COLOR_FOUR, -PALETTE_COLOR_FIVE },
      { // 6 colors
        -PALETTE_COLOR_ONE, 2, -PALETTE_COLOR_TWO, 4, -PALETTE_COLOR_THREE, 6,
        -PALETTE_COLOR_FOUR, 8, -PALETTE_COLOR_FIVE, -PALETTE_COLOR_SIX },
      { // 7 colors
        -PALETTE_COLOR_ONE, 2, -PALETTE_COLOR_TWO, 4, -PALETTE_COLOR_THREE, 6,
        -PALETTE_COLOR_FOUR, 8, -PALETTE_COLOR_FIVE, 10, -PALETTE_COLOR_SIX,
        -PALETTE_COLOR_SEVEN },
      { // 8 colors
        -PALETTE_COLOR_ONE, 2, -PALETTE_COLOR_TWO, 4, -PALETTE_COLOR_THREE, 6,
        -PALETTE_COLOR_FOUR, 8, -PALETTE_COLOR_FIVE, 10, -PALETTE_COLOR_SIX, 12,
        -PALETTE_COLOR_SEVEN, -PALETTE_COLOR_EIGHT },
    };
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// Note: Has to be non-zero to avoid any asserts triggering.
#define UNUSED_PROB 128

const aom_prob av1_default_palette_y_color_prob
    [PALETTE_MAX_SIZE - 1][PALETTE_COLOR_CONTEXTS][PALETTE_COLORS - 1] = {
      {
          // 2 colors
          { 230, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
          { 214, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
          { UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
          { UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
          { UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
          { 240, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
          { 73, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
          { 130, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
          { 227, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
          { UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
          { 188, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
          { 75, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { 250, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
          { 223, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
          { 252, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
      },
      {
          // 3 colors
          { 229, 137, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { 197, 120, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { 107, 195, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
          { 27, 151, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { 230, 130, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { 37, 230, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { 67, 221, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { 124, 230, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { 195, 109, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { 99, 122, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { 205, 208, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { 40, 235, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { 251, 132, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { 237, 186, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { 253, 112, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
      },
      {
          // 4 colors
          { 195, 87, 128, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 143, 100, 123, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 94, 124, 119, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 77, 91, 130, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 39, 114, 178, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 222, 94, 125, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 44, 203, 132, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 68, 175, 122, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 110, 187, 124, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 152, 91, 128, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 70, 109, 181, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 133, 113, 164, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 47, 205, 133, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 247, 94, 136, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 205, 122, 146, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 251, 100, 141, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
      },
      {
          // 5 colors
          { 195, 65, 84, 125, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 150, 76, 84, 121, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 94, 110, 81, 117, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 79, 85, 91, 139, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 26, 102, 139, 127, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 220, 73, 91, 119, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 38, 203, 86, 127, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 61, 186, 72, 124, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 132, 199, 84, 128, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 172, 52, 62, 120, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 102, 89, 121, 122, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 182, 48, 69, 186, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 36, 206, 87, 126, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 249, 55, 67, 122, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 218, 88, 75, 122, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 253, 64, 80, 119, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
      },
      {
          // 6 colors
          { 182, 54, 64, 75, 118, UNUSED_PROB, UNUSED_PROB },
          { 126, 67, 70, 76, 116, UNUSED_PROB, UNUSED_PROB },
          { 79, 92, 67, 85, 120, UNUSED_PROB, UNUSED_PROB },
          { 63, 61, 81, 118, 132, UNUSED_PROB, UNUSED_PROB },
          { 21, 80, 105, 83, 119, UNUSED_PROB, UNUSED_PROB },
          { 215, 72, 74, 74, 111, UNUSED_PROB, UNUSED_PROB },
          { 50, 176, 63, 79, 120, UNUSED_PROB, UNUSED_PROB },
          { 72, 148, 66, 77, 120, UNUSED_PROB, UNUSED_PROB },
          { 105, 177, 57, 78, 130, UNUSED_PROB, UNUSED_PROB },
          { 150, 66, 66, 80, 127, UNUSED_PROB, UNUSED_PROB },
          { 81, 76, 109, 85, 116, UNUSED_PROB, UNUSED_PROB },
          { 113, 81, 62, 96, 148, UNUSED_PROB, UNUSED_PROB },
          { 54, 179, 69, 82, 121, UNUSED_PROB, UNUSED_PROB },
          { 244, 47, 48, 67, 118, UNUSED_PROB, UNUSED_PROB },
          { 198, 83, 53, 65, 121, UNUSED_PROB, UNUSED_PROB },
          { 250, 42, 51, 69, 110, UNUSED_PROB, UNUSED_PROB },
      },
      {
          // 7 colors
          { 182, 45, 54, 62, 74, 113, UNUSED_PROB },
          { 124, 63, 57, 62, 77, 114, UNUSED_PROB },
          { 77, 80, 56, 66, 76, 117, UNUSED_PROB },
          { 63, 57, 69, 98, 85, 131, UNUSED_PROB },
          { 19, 81, 98, 63, 80, 116, UNUSED_PROB },
          { 215, 56, 60, 63, 68, 105, UNUSED_PROB },
          { 50, 174, 50, 60, 79, 118, UNUSED_PROB },
          { 68, 151, 50, 58, 73, 117, UNUSED_PROB },
          { 104, 182, 53, 57, 79, 127, UNUSED_PROB },
          { 156, 50, 51, 63, 77, 111, UNUSED_PROB },
          { 88, 67, 97, 59, 82, 120, UNUSED_PROB },
          { 114, 81, 46, 65, 103, 132, UNUSED_PROB },
          { 55, 166, 57, 66, 82, 120, UNUSED_PROB },
          { 245, 34, 38, 43, 63, 114, UNUSED_PROB },
          { 203, 68, 45, 47, 60, 118, UNUSED_PROB },
          { 250, 35, 37, 47, 66, 110, UNUSED_PROB },
      },
      {
          // 8 colors
          { 180, 43, 46, 50, 56, 69, 109 },
          { 116, 53, 51, 49, 57, 73, 115 },
          { 79, 70, 49, 50, 59, 74, 117 },
          { 60, 54, 57, 70, 62, 83, 129 },
          { 20, 73, 85, 52, 66, 81, 119 },
          { 213, 56, 52, 49, 53, 62, 104 },
          { 48, 161, 41, 45, 56, 77, 116 },
          { 68, 139, 40, 47, 54, 71, 116 },
          { 123, 166, 42, 43, 52, 76, 130 },
          { 153, 44, 44, 47, 54, 79, 129 },
          { 87, 64, 83, 49, 60, 75, 127 },
          { 131, 68, 43, 48, 73, 96, 130 },
          { 55, 152, 45, 51, 64, 77, 113 },
          { 243, 30, 28, 33, 41, 65, 114 },
          { 202, 56, 35, 36, 42, 63, 123 },
          { 249, 31, 29, 32, 45, 68, 111 },
      }
    };
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const aom_prob av1_default_palette_uv_color_prob
    [PALETTE_MAX_SIZE - 1][PALETTE_COLOR_CONTEXTS][PALETTE_COLORS - 1] = {
      {
          // 2 colors
          { 228, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
          { 195, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
          { UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
          { UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
          { UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
          { 228, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
          { 71, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
          { 129, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
          { 206, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
          { UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
          { 136, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
          { 98, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { 236, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
          { 222, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
          { 249, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
      },
      {
          // 3 colors
          { 198, 136, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { 178, 105, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { 100, 206, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB, UNUSED_PROB },
          { 12, 136, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { 219, 134, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { 50, 198, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { 61, 231, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { 110, 209, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { 173, 106, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { 145, 166, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { 156, 175, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { 69, 183, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { 241, 163, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { 224, 160, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
          { 246, 154, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB,
            UNUSED_PROB },
      },
      {
          // 4 colors
          { 173, 88, 143, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 146, 81, 127, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 84, 134, 102, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 69, 138, 140, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 31, 103, 200, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 217, 101, 139, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 51, 174, 121, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 64, 177, 109, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 96, 179, 145, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 164, 77, 114, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 87, 94, 156, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 105, 57, 173, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 63, 158, 137, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 236, 102, 156, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 197, 115, 153, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 245, 106, 154, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
      },
      {
          // 5 colors
          { 179, 64, 97, 129, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 137, 56, 88, 125, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 82, 107, 61, 118, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 59, 113, 86, 115, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 23, 88, 118, 130, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 213, 66, 90, 125, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 37, 181, 103, 121, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 47, 188, 61, 131, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 104, 185, 103, 144, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 163, 39, 76, 112, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 94, 74, 131, 126, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 142, 42, 103, 163, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 53, 162, 99, 149, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 239, 54, 84, 108, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 203, 84, 110, 147, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
          { 248, 70, 105, 151, UNUSED_PROB, UNUSED_PROB, UNUSED_PROB },
      },
      {
          // 6 colors
          { 189, 50, 67, 90, 130, UNUSED_PROB, UNUSED_PROB },
          { 114, 50, 55, 90, 123, UNUSED_PROB, UNUSED_PROB },
          { 66, 76, 54, 82, 128, UNUSED_PROB, UNUSED_PROB },
          { 43, 69, 69, 80, 129, UNUSED_PROB, UNUSED_PROB },
          { 22, 59, 87, 88, 141, UNUSED_PROB, UNUSED_PROB },
          { 203, 49, 68, 87, 122, UNUSED_PROB, UNUSED_PROB },
          { 43, 157, 74, 104, 146, UNUSED_PROB, UNUSED_PROB },
          { 54, 138, 51, 95, 138, UNUSED_PROB, UNUSED_PROB },
          { 82, 171, 58, 102, 146, UNUSED_PROB, UNUSED_PROB },
          { 129, 38, 59, 64, 168, UNUSED_PROB, UNUSED_PROB },
          { 56, 67, 119, 92, 112, UNUSED_PROB, UNUSED_PROB },
          { 96, 62, 53, 132, 82, UNUSED_PROB, UNUSED_PROB },
          { 60, 147, 77, 108, 145, UNUSED_PROB, UNUSED_PROB },
          { 238, 76, 73, 93, 148, UNUSED_PROB, UNUSED_PROB },
          { 189, 86, 73, 103, 157, UNUSED_PROB, UNUSED_PROB },
          { 246, 62, 75, 83, 167, UNUSED_PROB, UNUSED_PROB },
      },
      {
          // 7 colors
          { 179, 42, 51, 73, 99, 134, UNUSED_PROB },
          { 119, 52, 52, 61, 64, 114, UNUSED_PROB },
          { 53, 77, 35, 65, 71, 131, UNUSED_PROB },
          { 38, 70, 51, 68, 89, 144, UNUSED_PROB },
          { 23, 65, 128, 73, 97, 131, UNUSED_PROB },
          { 210, 47, 52, 63, 81, 143, UNUSED_PROB },
          { 42, 159, 57, 68, 98, 143, UNUSED_PROB },
          { 49, 153, 45, 82, 93, 143, UNUSED_PROB },
          { 81, 169, 52, 72, 113, 151, UNUSED_PROB },
          { 136, 46, 35, 56, 75, 96, UNUSED_PROB },
          { 57, 84, 109, 47, 107, 131, UNUSED_PROB },
          { 128, 78, 57, 36, 128, 85, UNUSED_PROB },
          { 54, 149, 68, 77, 94, 153, UNUSED_PROB },
          { 243, 58, 50, 71, 81, 167, UNUSED_PROB },
          { 189, 92, 64, 70, 121, 173, UNUSED_PROB },
          { 248, 35, 38, 51, 82, 201, UNUSED_PROB },
      },
      {
          // 8 colors
          { 201, 40, 36, 42, 64, 92, 123 },
          { 116, 43, 33, 43, 73, 102, 128 },
          { 46, 77, 37, 69, 62, 78, 150 },
          { 40, 65, 52, 50, 76, 89, 133 },
          { 28, 48, 91, 17, 64, 77, 133 },
          { 218, 43, 43, 37, 56, 72, 163 },
          { 41, 155, 44, 83, 82, 129, 180 },
          { 44, 141, 29, 55, 64, 89, 147 },
          { 92, 166, 48, 45, 59, 126, 179 },
          { 169, 35, 49, 41, 36, 99, 139 },
          { 55, 77, 77, 56, 60, 75, 156 },
          { 155, 81, 51, 64, 57, 182, 255 },
          { 60, 134, 49, 49, 93, 128, 174 },
          { 244, 98, 51, 46, 22, 73, 238 },
          { 189, 70, 40, 87, 93, 79, 201 },
          { 248, 54, 49, 40, 29, 42, 227 },
      }
    };

#undef UNUSED_PROB
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static const int palette_color_context_lookup[PALETTE_COLOR_CONTEXTS] = {
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  // (3, 0, 0, 0), (3, 2, 0, 0), (3, 3, 2, 0), (3, 3, 2, 2),
  3993, 4235, 4378, 4380,
  // (4, 3, 3, 0), (5, 0, 0, 0), (5, 3, 0, 0), (5, 3, 2, 0),
  5720, 6655, 7018, 7040,
  // (5, 5, 0, 0), (6, 2, 0, 0), (6, 2, 2, 0), (6, 4, 0, 0),
  7260, 8228, 8250, 8470,
  // (7, 3, 0, 0), (8, 0, 0, 0), (8, 2, 0, 0), (10, 0, 0, 0)
  9680, 10648, 10890, 13310
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};
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#endif  // CONFIG_PALETTE
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// The transform size is coded as an offset to the smallest transform
// block size.
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const aom_tree_index av1_tx_size_tree[MAX_TX_DEPTH][TREE_SIZE(TX_SIZES)] = {
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  {
      // Max tx_size is 8X8
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      -0, -1,
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  },
  {
      // Max tx_size is 16X16
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      -0, 2, -1, -2,
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  },
  {
      // Max tx_size is 32X32
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      -0, 2, -1, 4,