| 1 | /* |
| 2 | * DSP Group TrueSpeech compatible decoder |
| 3 | * copyright (c) 2005 Konstantin Shishkov |
| 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 | #ifndef AVCODEC_TRUESPEECH_DATA_H |
| 23 | #define AVCODEC_TRUESPEECH_DATA_H |
| 24 | |
| 25 | #include <stdint.h> |
| 26 | |
| 27 | /* codebooks fo expanding input filter */ |
| 28 | static const int16_t ts_cb_0[32] = { |
| 29 | 0x8240, 0x8364, 0x84CE, 0x865D, 0x8805, 0x89DE, 0x8BD7, 0x8DF4, |
| 30 | 0x9051, 0x92E2, 0x95DE, 0x990F, 0x9C81, 0xA079, 0xA54C, 0xAAD2, |
| 31 | 0xB18A, 0xB90A, 0xC124, 0xC9CC, 0xD339, 0xDDD3, 0xE9D6, 0xF893, |
| 32 | 0x096F, 0x1ACA, 0x29EC, 0x381F, 0x45F9, 0x546A, 0x63C3, 0x73B5, |
| 33 | }; |
| 34 | |
| 35 | static const int16_t ts_cb_1[32] = { |
| 36 | 0x9F65, 0xB56B, 0xC583, 0xD371, 0xE018, 0xEBB4, 0xF61C, 0xFF59, |
| 37 | 0x085B, 0x1106, 0x1952, 0x214A, 0x28C9, 0x2FF8, 0x36E6, 0x3D92, |
| 38 | 0x43DF, 0x49BB, 0x4F46, 0x5467, 0x5930, 0x5DA3, 0x61EC, 0x65F9, |
| 39 | 0x69D4, 0x6D5A, 0x709E, 0x73AD, 0x766B, 0x78F0, 0x7B5A, 0x7DA5, |
| 40 | }; |
| 41 | |
| 42 | static const int16_t ts_cb_2[16] = { |
| 43 | 0x96F8, 0xA3B4, 0xAF45, 0xBA53, 0xC4B1, 0xCECC, 0xD86F, 0xE21E, |
| 44 | 0xEBF3, 0xF640, 0x00F7, 0x0C20, 0x1881, 0x269A, 0x376B, 0x4D60, |
| 45 | }; |
| 46 | |
| 47 | static const int16_t ts_cb_3[16] = { |
| 48 | 0xC654, 0xDEF2, 0xEFAA, 0xFD94, 0x096A, 0x143F, 0x1E7B, 0x282C, |
| 49 | 0x3176, 0x3A89, 0x439F, 0x4CA2, 0x557F, 0x5E50, 0x6718, 0x6F8D, |
| 50 | }; |
| 51 | |
| 52 | static const int16_t ts_cb_4[16] = { |
| 53 | 0xABE7, 0xBBA8, 0xC81C, 0xD326, 0xDD0E, 0xE5D4, 0xEE22, 0xF618, |
| 54 | 0xFE28, 0x064F, 0x0EB7, 0x17B8, 0x21AA, 0x2D8B, 0x3BA2, 0x4DF9, |
| 55 | }; |
| 56 | |
| 57 | static const int16_t ts_cb_5[8] = { |
| 58 | 0xD51B, 0xF12E, 0x042E, 0x13C7, 0x2260, 0x311B, 0x40DE, 0x5385, |
| 59 | }; |
| 60 | |
| 61 | static const int16_t ts_cb_6[8] = { |
| 62 | 0xB550, 0xC825, 0xD980, 0xE997, 0xF883, 0x0752, 0x1811, 0x2E18, |
| 63 | }; |
| 64 | |
| 65 | static const int16_t ts_cb_7[8] = { |
| 66 | 0xCEF0, 0xE4F9, 0xF6BB, 0x0646, 0x14F5, 0x23FF, 0x356F, 0x4A8D, |
| 67 | }; |
| 68 | |
| 69 | static const int16_t * const ts_codebook[8] = { |
| 70 | ts_cb_0, ts_cb_1, ts_cb_2, ts_cb_3, ts_cb_4, ts_cb_5, ts_cb_6, ts_cb_7 |
| 71 | }; |
| 72 | |
| 73 | /* table used for decoding pulse positions */ |
| 74 | static const int16_t ts_pulse_values[120] = { |
| 75 | 0x0E46, 0x0CCC, 0x0B6D, 0x0A28, 0x08FC, 0x07E8, 0x06EB, 0x0604, |
| 76 | 0x0532, 0x0474, 0x03C9, 0x0330, 0x02A8, 0x0230, 0x01C7, 0x016C, |
| 77 | 0x011E, 0x00DC, 0x00A5, 0x0078, 0x0054, 0x0038, 0x0023, 0x0014, |
| 78 | 0x000A, 0x0004, 0x0001, 0x0000, 0x0000, 0x0000, |
| 79 | |
| 80 | 0x0196, 0x017A, 0x015F, 0x0145, 0x012C, 0x0114, 0x00FD, 0x00E7, |
| 81 | 0x00D2, 0x00BE, 0x00AB, 0x0099, 0x0088, 0x0078, 0x0069, 0x005B, |
| 82 | 0x004E, 0x0042, 0x0037, 0x002D, 0x0024, 0x001C, 0x0015, 0x000F, |
| 83 | 0x000A, 0x0006, 0x0003, 0x0001, 0x0000, 0x0000, |
| 84 | |
| 85 | 0x001D, 0x001C, 0x001B, 0x001A, 0x0019, 0x0018, 0x0017, 0x0016, |
| 86 | 0x0015, 0x0014, 0x0013, 0x0012, 0x0011, 0x0010, 0x000F, 0x000E, |
| 87 | 0x000D, 0x000C, 0x000B, 0x000A, 0x0009, 0x0008, 0x0007, 0x0006, |
| 88 | 0x0005, 0x0004, 0x0003, 0x0002, 0x0001, 0x0000, |
| 89 | |
| 90 | 0x0001, 0x0001, 0x0001, 0x0001, 0x0001, 0x0001, 0x0001, 0x0001, |
| 91 | 0x0001, 0x0001, 0x0001, 0x0001, 0x0001, 0x0001, 0x0001, 0x0001, |
| 92 | 0x0001, 0x0001, 0x0001, 0x0001, 0x0001, 0x0001, 0x0001, 0x0001, |
| 93 | 0x0001, 0x0001, 0x0001, 0x0001, 0x0001, 0x0001 |
| 94 | }; |
| 95 | |
| 96 | /* filter for correlated input filter */ |
| 97 | static const int16_t ts_decay_994_1000[8] = |
| 98 | { 0x7F3B, 0x7E78, 0x7DB6, 0x7CF5, 0x7C35, 0x7B76, 0x7AB8, 0x79FC }; |
| 99 | |
| 100 | /* two-point filters table */ |
| 101 | static const int16_t ts_order2_coeffs[25 * 2] = { |
| 102 | 0xED2F, 0x5239, |
| 103 | 0x54F1, 0xE4A9, |
| 104 | 0x2620, 0xEE3E, |
| 105 | 0x09D6, 0x2C40, |
| 106 | 0xEFB5, 0x2BE0, |
| 107 | |
| 108 | 0x3FE1, 0x3339, |
| 109 | 0x442F, 0xE6FE, |
| 110 | 0x4458, 0xF9DF, |
| 111 | 0xF231, 0x43DB, |
| 112 | 0x3DB0, 0xF705, |
| 113 | |
| 114 | 0x4F7B, 0xFEFB, |
| 115 | 0x26AD, 0x0CDC, |
| 116 | 0x33C2, 0x0739, |
| 117 | 0x12BE, 0x43A2, |
| 118 | 0x1BDF, 0x1F3E, |
| 119 | |
| 120 | 0x0211, 0x0796, |
| 121 | 0x2AEB, 0x163F, |
| 122 | 0x050D, 0x3A38, |
| 123 | 0x0D1E, 0x0D78, |
| 124 | 0x150F, 0x3346, |
| 125 | |
| 126 | 0x38A4, 0x0B7D, |
| 127 | 0x2D5D, 0x1FDF, |
| 128 | 0x19B7, 0x2822, |
| 129 | 0x0D99, 0x1F12, |
| 130 | 0x194C, 0x0CE6 |
| 131 | }; |
| 132 | |
| 133 | /* possible pulse values */ |
| 134 | static const int16_t ts_pulse_scales[64] = { |
| 135 | 0x0002, 0x0006, 0xFFFE, 0xFFFA, |
| 136 | 0x0004, 0x000C, 0xFFFC, 0xFFF4, |
| 137 | 0x0006, 0x0012, 0xFFFA, 0xFFEE, |
| 138 | 0x000A, 0x001E, 0xFFF6, 0xFFE2, |
| 139 | 0x0010, 0x0030, 0xFFF0, 0xFFD0, |
| 140 | 0x0019, 0x004B, 0xFFE7, 0xFFB5, |
| 141 | 0x0028, 0x0078, 0xFFD8, 0xFF88, |
| 142 | 0x0040, 0x00C0, 0xFFC0, 0xFF40, |
| 143 | 0x0065, 0x012F, 0xFF9B, 0xFED1, |
| 144 | 0x00A1, 0x01E3, 0xFF5F, 0xFE1D, |
| 145 | 0x0100, 0x0300, 0xFF00, 0xFD00, |
| 146 | 0x0196, 0x04C2, 0xFE6A, 0xFB3E, |
| 147 | 0x0285, 0x078F, 0xFD7B, 0xF871, |
| 148 | 0x0400, 0x0C00, 0xFC00, 0xF400, |
| 149 | 0x0659, 0x130B, 0xF9A7, 0xECF5, |
| 150 | 0x0A14, 0x1E3C, 0xF5EC, 0xE1C4 |
| 151 | }; |
| 152 | |
| 153 | /* filters used in final output calculations */ |
| 154 | static const int16_t ts_decay_35_64[8] = |
| 155 | { 0x4666, 0x26B8, 0x154C, 0x0BB6, 0x0671, 0x038B, 0x01F3, 0x0112 }; |
| 156 | static const int16_t ts_decay_3_4[8] = |
| 157 | { 0x6000, 0x4800, 0x3600, 0x2880, 0x1E60, 0x16C8, 0x1116, 0x0CD1 }; |
| 158 | |
| 159 | #endif /* AVCODEC_TRUESPEECH_DATA_H */ |