2 * DSP Group TrueSpeech compatible decoder
3 * copyright (c) 2005 Konstantin Shishkov
5 * This file is part of FFmpeg.
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.
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.
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
22 #ifndef AVCODEC_TRUESPEECH_DATA_H
23 #define AVCODEC_TRUESPEECH_DATA_H
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,
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,
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,
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,
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,
57 static const int16_t ts_cb_5[8] = {
58 0xD51B, 0xF12E, 0x042E, 0x13C7, 0x2260, 0x311B, 0x40DE, 0x5385,
61 static const int16_t ts_cb_6[8] = {
62 0xB550, 0xC825, 0xD980, 0xE997, 0xF883, 0x0752, 0x1811, 0x2E18,
65 static const int16_t ts_cb_7[8] = {
66 0xCEF0, 0xE4F9, 0xF6BB, 0x0646, 0x14F5, 0x23FF, 0x356F, 0x4A8D,
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
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,
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,
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,
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
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 };
100 /* two-point filters table */
101 static const int16_t ts_order2_coeffs[25 * 2] = {
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
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 };
159 #endif /* AVCODEC_TRUESPEECH_DATA_H */