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6148 | serge | 1 | /* |
2 | * MPEG-4 Parametric Stereo data tables |
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3 | * Copyright (c) 2010 Alex Converse |
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4 | * |
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5 | * This file is part of FFmpeg. |
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6 | * |
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7 | * FFmpeg is free software; you can redistribute it and/or |
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8 | * modify it under the terms of the GNU Lesser General Public |
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9 | * License as published by the Free Software Foundation; either |
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10 | * version 2.1 of the License, or (at your option) any later version. |
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11 | * |
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12 | * FFmpeg is distributed in the hope that it will be useful, |
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 | * Lesser General Public License for more details. |
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16 | * |
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17 | * You should have received a copy of the GNU Lesser General Public |
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18 | * License along with FFmpeg; if not, write to the Free Software |
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19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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20 | */ |
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21 | |||
22 | static const uint8_t huff_iid_df1_bits[] = { |
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23 | 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 18, 17, 17, 16, 16, 15, 14, 14, |
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24 | 13, 12, 12, 11, 10, 10, 8, 7, 6, 5, 4, 3, 1, 3, 4, 5, 6, 7, |
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25 | 8, 9, 10, 11, 11, 12, 13, 14, 14, 15, 16, 16, 17, 17, 18, 17, 18, 18, |
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26 | 18, 18, 18, 18, 18, 18, 18, |
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27 | }; |
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28 | |||
29 | static const uint32_t huff_iid_df1_codes[] = { |
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30 | 0x01FEB4, 0x01FEB5, 0x01FD76, 0x01FD77, 0x01FD74, 0x01FD75, 0x01FE8A, |
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31 | 0x01FE8B, 0x01FE88, 0x00FE80, 0x01FEB6, 0x00FE82, 0x00FEB8, 0x007F42, |
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32 | 0x007FAE, 0x003FAF, 0x001FD1, 0x001FE9, 0x000FE9, 0x0007EA, 0x0007FB, |
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33 | 0x0003FB, 0x0001FB, 0x0001FF, 0x00007C, 0x00003C, 0x00001C, 0x00000C, |
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34 | 0x000000, 0x000001, 0x000001, 0x000002, 0x000001, 0x00000D, 0x00001D, |
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35 | 0x00003D, 0x00007D, 0x0000FC, 0x0001FC, 0x0003FC, 0x0003F4, 0x0007EB, |
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36 | 0x000FEA, 0x001FEA, 0x001FD6, 0x003FD0, 0x007FAF, 0x007F43, 0x00FEB9, |
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37 | 0x00FE83, 0x01FEB7, 0x00FE81, 0x01FE89, 0x01FE8E, 0x01FE8F, 0x01FE8C, |
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38 | 0x01FE8D, 0x01FEB2, 0x01FEB3, 0x01FEB0, 0x01FEB1, |
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39 | }; |
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40 | |||
41 | static const uint8_t huff_iid_dt1_bits[] = { |
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42 | 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, |
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43 | 13, 13, 12, 12, 11, 10, 9, 9, 7, 6, 5, 3, 1, 2, 5, 6, 7, 8, |
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44 | 9, 10, 11, 11, 12, 12, 13, 13, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, |
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45 | 16, 16, 16, 16, 16, 16, 16, |
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46 | }; |
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47 | |||
48 | static const uint16_t huff_iid_dt1_codes[] = { |
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49 | 0x004ED4, 0x004ED5, 0x004ECE, 0x004ECF, 0x004ECC, 0x004ED6, 0x004ED8, |
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50 | 0x004F46, 0x004F60, 0x002718, 0x002719, 0x002764, 0x002765, 0x00276D, |
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51 | 0x0027B1, 0x0013B7, 0x0013D6, 0x0009C7, 0x0009E9, 0x0009ED, 0x0004EE, |
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52 | 0x0004F7, 0x000278, 0x000139, 0x00009A, 0x00009F, 0x000020, 0x000011, |
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53 | 0x00000A, 0x000003, 0x000001, 0x000000, 0x00000B, 0x000012, 0x000021, |
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54 | 0x00004C, 0x00009B, 0x00013A, 0x000279, 0x000270, 0x0004EF, 0x0004E2, |
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55 | 0x0009EA, 0x0009D8, 0x0013D7, 0x0013D0, 0x0027B2, 0x0027A2, 0x00271A, |
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56 | 0x00271B, 0x004F66, 0x004F67, 0x004F61, 0x004F47, 0x004ED9, 0x004ED7, |
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57 | 0x004ECD, 0x004ED2, 0x004ED3, 0x004ED0, 0x004ED1, |
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58 | }; |
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59 | |||
60 | static const uint8_t huff_iid_df0_bits[] = { |
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61 | 17, 17, 17, 17, 16, 15, 13, 10, 9, 7, 6, 5, 4, 3, 1, 3, 4, 5, |
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62 | 6, 6, 8, 11, 13, 14, 14, 15, 17, 18, 18, |
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63 | }; |
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64 | |||
65 | static const uint32_t huff_iid_df0_codes[] = { |
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66 | 0x01FFFB, 0x01FFFC, 0x01FFFD, 0x01FFFA, 0x00FFFC, 0x007FFC, 0x001FFD, |
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67 | 0x0003FE, 0x0001FE, 0x00007E, 0x00003C, 0x00001D, 0x00000D, 0x000005, |
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68 | 0x000000, 0x000004, 0x00000C, 0x00001C, 0x00003D, 0x00003E, 0x0000FE, |
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69 | 0x0007FE, 0x001FFC, 0x003FFC, 0x003FFD, 0x007FFD, 0x01FFFE, 0x03FFFE, |
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70 | 0x03FFFF, |
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71 | }; |
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72 | |||
73 | static const uint8_t huff_iid_dt0_bits[] = { |
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74 | 19, 19, 19, 20, 20, 20, 17, 15, 12, 10, 8, 6, 4, 2, 1, 3, 5, 7, |
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75 | 9, 11, 13, 14, 17, 19, 20, 20, 20, 20, 20, |
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76 | }; |
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77 | |||
78 | static const uint32_t huff_iid_dt0_codes[] = { |
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79 | 0x07FFF9, 0x07FFFA, 0x07FFFB, 0x0FFFF8, 0x0FFFF9, 0x0FFFFA, 0x01FFFD, |
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80 | 0x007FFE, 0x000FFE, 0x0003FE, 0x0000FE, 0x00003E, 0x00000E, 0x000002, |
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81 | 0x000000, 0x000006, 0x00001E, 0x00007E, 0x0001FE, 0x0007FE, 0x001FFE, |
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82 | 0x003FFE, 0x01FFFC, 0x07FFF8, 0x0FFFFB, 0x0FFFFC, 0x0FFFFD, 0x0FFFFE, |
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83 | 0x0FFFFF, |
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84 | }; |
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85 | |||
86 | static const uint8_t huff_icc_df_bits[] = { |
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87 | 14, 14, 12, 10, 7, 5, 3, 1, 2, 4, 6, 8, 9, 11, 13, |
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88 | }; |
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89 | |||
90 | static const uint16_t huff_icc_df_codes[] = { |
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91 | 0x3FFF, 0x3FFE, 0x0FFE, 0x03FE, 0x007E, 0x001E, 0x0006, 0x0000, |
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92 | 0x0002, 0x000E, 0x003E, 0x00FE, 0x01FE, 0x07FE, 0x1FFE, |
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93 | }; |
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94 | |||
95 | static const uint8_t huff_icc_dt_bits[] = { |
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96 | 14, 13, 11, 9, 7, 5, 3, 1, 2, 4, 6, 8, 10, 12, 14, |
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97 | }; |
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98 | |||
99 | static const uint16_t huff_icc_dt_codes[] = { |
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100 | 0x3FFE, 0x1FFE, 0x07FE, 0x01FE, 0x007E, 0x001E, 0x0006, 0x0000, |
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101 | 0x0002, 0x000E, 0x003E, 0x00FE, 0x03FE, 0x0FFE, 0x3FFF, |
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102 | }; |
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103 | |||
104 | static const uint8_t huff_ipd_df_bits[] = { |
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105 | 1, 3, 4, 4, 4, 4, 4, 4, |
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106 | }; |
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107 | |||
108 | static const uint8_t huff_ipd_df_codes[] = { |
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109 | 0x01, 0x00, 0x06, 0x04, 0x02, 0x03, 0x05, 0x07, |
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110 | }; |
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111 | |||
112 | static const uint8_t huff_ipd_dt_bits[] = { |
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113 | 1, 3, 4, 5, 5, 4, 4, 3, |
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114 | }; |
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115 | |||
116 | static const uint8_t huff_ipd_dt_codes[] = { |
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117 | 0x01, 0x02, 0x02, 0x03, 0x02, 0x00, 0x03, 0x03, |
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118 | }; |
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119 | |||
120 | static const uint8_t huff_opd_df_bits[] = { |
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121 | 1, 3, 4, 4, 5, 5, 4, 3, |
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122 | }; |
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123 | |||
124 | static const uint8_t huff_opd_df_codes[] = { |
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125 | 0x01, 0x01, 0x06, 0x04, 0x0F, 0x0E, 0x05, 0x00, |
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126 | }; |
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127 | |||
128 | static const uint8_t huff_opd_dt_bits[] = { |
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129 | 1, 3, 4, 5, 5, 4, 4, 3, |
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130 | }; |
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131 | |||
132 | static const uint8_t huff_opd_dt_codes[] = { |
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133 | 0x01, 0x02, 0x01, 0x07, 0x06, 0x00, 0x02, 0x03, |
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134 | }; |
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135 | |||
136 | static const int8_t huff_offset[] = { |
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137 | 30, 30, |
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138 | 14, 14, |
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139 | 7, 7, |
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140 | 0, 0, |
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141 | 0, 0, |
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142 | }; |
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143 | |||
144 | ///Table 8.48 |
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145 | static const int8_t k_to_i_20[] = { |
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146 | 1, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 14, 15, |
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147 | 15, 15, 16, 16, 16, 16, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, |
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148 | 18, 18, 18, 18, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, |
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149 | 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19 |
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150 | }; |
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151 | ///Table 8.49 |
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152 | static const int8_t k_to_i_34[] = { |
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153 | 0, 1, 2, 3, 4, 5, 6, 6, 7, 2, 1, 0, 10, 10, 4, 5, 6, 7, 8, |
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154 | 9, 10, 11, 12, 9, 14, 11, 12, 13, 14, 15, 16, 13, 16, 17, 18, 19, 20, 21, |
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155 | 22, 22, 23, 23, 24, 24, 25, 25, 26, 26, 27, 27, 27, 28, 28, 28, 29, 29, 29, |
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156 | 30, 30, 30, 31, 31, 31, 31, 32, 32, 32, 32, 33, 33, 33, 33, 33, 33, 33, 33, |
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157 | 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33 |
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158 | }; |
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159 | |||
160 | static const float g1_Q2[] = { |
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161 | 0.0f, 0.01899487526049f, 0.0f, -0.07293139167538f, |
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162 | 0.0f, 0.30596630545168f, 0.5f |
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163 | }; |