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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 */ |