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