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Imported Debian version 2.4.3~trusty1
[deb_ffmpeg.git] / ffmpeg / libavcodec / g729data.h
CommitLineData
2ba45a60
DM		 1/*
2 * data for G.729, G729 Annex D decoders
3 * Copyright (c) 2007 Vladimir Voroshilov
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_G729DATA_H
23#define AVCODEC_G729DATA_H
24
25#include <stdint.h>
26
27#define MA_NP 4 ///< Moving Average (MA) prediction order
28
29#define VQ_1ST_BITS 7 ///< first stage vector of quantizer (size in bits)
30#define VQ_2ND_BITS 5 ///< second stage vector of quantizer (size in bits)
31
32#define GC_1ST_IDX_BITS_8K 3 ///< gain codebook (first stage) index, 8k mode (size in bits)
33#define GC_2ND_IDX_BITS_8K 4 ///< gain codebook (second stage) index, 8k mode (size in bits)
34
35#define GC_1ST_IDX_BITS_6K4 3 ///< gain codebook (first stage) index, 6.4k mode (size in bits)
36#define GC_2ND_IDX_BITS_6K4 3 ///< gain codebook (second stage) index, 6.4k mode (size in bits)
37
38/**
39 * first stage LSP codebook
40 * (10-dimensional, with 128 entries (3.24 of G.729)
41 */
42static const int16_t cb_lsp_1st[1<<VQ_1ST_BITS][10] = { /* (2.13) */
43 { 1486, 2168, 3751, 9074, 12134, 13944, 17983, 19173, 21190, 21820},
44 { 1730, 2640, 3450, 4870, 6126, 7876, 15644, 17817, 20294, 21902},
45 { 1568, 2256, 3088, 4874, 11063, 13393, 18307, 19293, 21109, 21741},
46 { 1733, 2512, 3357, 4708, 6977, 10296, 17024, 17956, 19145, 20350},
47 { 1744, 2436, 3308, 8731, 10432, 12007, 15614, 16639, 21359, 21913},
48 { 1786, 2369, 3372, 4521, 6795, 12963, 17674, 18988, 20855, 21640},
49 { 1631, 2433, 3361, 6328, 10709, 12013, 13277, 13904, 19441, 21088},
50 { 1489, 2364, 3291, 6250, 9227, 10403, 13843, 15278, 17721, 21451},
51 { 1869, 2533, 3475, 4365, 9152, 14513, 15908, 17022, 20611, 21411},
52 { 2070, 3025, 4333, 5854, 7805, 9231, 10597, 16047, 20109, 21834},
53 { 1910, 2673, 3419, 4261, 11168, 15111, 16577, 17591, 19310, 20265},
54 { 1141, 1815, 2624, 4623, 6495, 9588, 13968, 16428, 19351, 21286},
55 { 2192, 3171, 4707, 5808, 10904, 12500, 14162, 15664, 21124, 21789},
56 { 1286, 1907, 2548, 3453, 9574, 11964, 15978, 17344, 19691, 22495},
57 { 1921, 2720, 4604, 6684, 11503, 12992, 14350, 15262, 16997, 20791},
58 { 2052, 2759, 3897, 5246, 6638, 10267, 15834, 16814, 18149, 21675},
59 { 1798, 2497, 5617, 11449, 13189, 14711, 17050, 18195, 20307, 21182},
60 { 1009, 1647, 2889, 5709, 9541, 12354, 15231, 18494, 20966, 22033},
61 { 3016, 3794, 5406, 7469, 12488, 13984, 15328, 16334, 19952, 20791},
62 { 2203, 3040, 3796, 5442, 11987, 13512, 14931, 16370, 17856, 18803},
63 { 2912, 4292, 7988, 9572, 11562, 13244, 14556, 16529, 20004, 21073},
64 { 2861, 3607, 5923, 7034, 9234, 12054, 13729, 18056, 20262, 20974},
65 { 3069, 4311, 5967, 7367, 11482, 12699, 14309, 16233, 18333, 19172},
66 { 2434, 3661, 4866, 5798, 10383, 11722, 13049, 15668, 18862, 19831},
67 { 2020, 2605, 3860, 9241, 13275, 14644, 16010, 17099, 19268, 20251},
68 { 1877, 2809, 3590, 4707, 11056, 12441, 15622, 17168, 18761, 19907},
69 { 2107, 2873, 3673, 5799, 13579, 14687, 15938, 17077, 18890, 19831},
70 { 1612, 2284, 2944, 3572, 8219, 13959, 15924, 17239, 18592, 20117},
71 { 2420, 3156, 6542, 10215, 12061, 13534, 15305, 16452, 18717, 19880},
72 { 1667, 2612, 3534, 5237, 10513, 11696, 12940, 16798, 18058, 19378},
73 { 2388, 3017, 4839, 9333, 11413, 12730, 15024, 16248, 17449, 18677},
74 { 1875, 2786, 4231, 6320, 8694, 10149, 11785, 17013, 18608, 19960},
75 { 679, 1411, 4654, 8006, 11446, 13249, 15763, 18127, 20361, 21567},
76 { 1838, 2596, 3578, 4608, 5650, 11274, 14355, 15886, 20579, 21754},
77 { 1303, 1955, 2395, 3322, 12023, 13764, 15883, 18077, 20180, 21232},
78 { 1438, 2102, 2663, 3462, 8328, 10362, 13763, 17248, 19732, 22344},
79 { 860, 1904, 6098, 7775, 9815, 12007, 14821, 16709, 19787, 21132},
80 { 1673, 2723, 3704, 6125, 7668, 9447, 13683, 14443, 20538, 21731},
81 { 1246, 1849, 2902, 4508, 7221, 12710, 14835, 16314, 19335, 22720},
82 { 1525, 2260, 3862, 5659, 7342, 11748, 13370, 14442, 18044, 21334},
83 { 1196, 1846, 3104, 7063, 10972, 12905, 14814, 17037, 19922, 22636},
84 { 2147, 3106, 4475, 6511, 8227, 9765, 10984, 12161, 18971, 21300},
85 { 1585, 2405, 2994, 4036, 11481, 13177, 14519, 15431, 19967, 21275},
86 { 1778, 2688, 3614, 4680, 9465, 11064, 12473, 16320, 19742, 20800},
87 { 1862, 2586, 3492, 6719, 11708, 13012, 14364, 16128, 19610, 20425},
88 { 1395, 2156, 2669, 3386, 10607, 12125, 13614, 16705, 18976, 21367},
89 { 1444, 2117, 3286, 6233, 9423, 12981, 14998, 15853, 17188, 21857},
90 { 2004, 2895, 3783, 4897, 6168, 7297, 12609, 16445, 19297, 21465},
91 { 1495, 2863, 6360, 8100, 11399, 14271, 15902, 17711, 20479, 22061},
92 { 2484, 3114, 5718, 7097, 8400, 12616, 14073, 14847, 20535, 21396},
93 { 2424, 3277, 5296, 6284, 11290, 12903, 16022, 17508, 19333, 20283},
94 { 2565, 3778, 5360, 6989, 8782, 10428, 14390, 15742, 17770, 21734},
95 { 2727, 3384, 6613, 9254, 10542, 12236, 14651, 15687, 20074, 21102},
96 { 1916, 2953, 6274, 8088, 9710, 10925, 12392, 16434, 20010, 21183},
97 { 3384, 4366, 5349, 7667, 11180, 12605, 13921, 15324, 19901, 20754},
98 { 3075, 4283, 5951, 7619, 9604, 11010, 12384, 14006, 20658, 21497},
99 { 1751, 2455, 5147, 9966, 11621, 13176, 14739, 16470, 20788, 21756},
100 { 1442, 2188, 3330, 6813, 8929, 12135, 14476, 15306, 19635, 20544},
101 { 2294, 2895, 4070, 8035, 12233, 13416, 14762, 17367, 18952, 19688},
102 { 1937, 2659, 4602, 6697, 9071, 12863, 14197, 15230, 16047, 18877},
103 { 2071, 2663, 4216, 9445, 10887, 12292, 13949, 14909, 19236, 20341},
104 { 1740, 2491, 3488, 8138, 9656, 11153, 13206, 14688, 20896, 21907},
105 { 2199, 2881, 4675, 8527, 10051, 11408, 14435, 15463, 17190, 20597},
106 { 1943, 2988, 4177, 6039, 7478, 8536, 14181, 15551, 17622, 21579},
107 { 1825, 3175, 7062, 9818, 12824, 15450, 18330, 19856, 21830, 22412},
108 { 2464, 3046, 4822, 5977, 7696, 15398, 16730, 17646, 20588, 21320},
109 { 2550, 3393, 5305, 6920, 10235, 14083, 18143, 19195, 20681, 21336},
110 { 3003, 3799, 5321, 6437, 7919, 11643, 15810, 16846, 18119, 18980},
111 { 3455, 4157, 6838, 8199, 9877, 12314, 15905, 16826, 19949, 20892},
112 { 3052, 3769, 4891, 5810, 6977, 10126, 14788, 15990, 19773, 20904},
113 { 3671, 4356, 5827, 6997, 8460, 12084, 14154, 14939, 19247, 20423},
114 { 2716, 3684, 5246, 6686, 8463, 10001, 12394, 14131, 16150, 19776},
115 { 1945, 2638, 4130, 7995, 14338, 15576, 17057, 18206, 20225, 20997},
116 { 2304, 2928, 4122, 4824, 5640, 13139, 15825, 16938, 20108, 21054},
117 { 1800, 2516, 3350, 5219, 13406, 15948, 17618, 18540, 20531, 21252},
118 { 1436, 2224, 2753, 4546, 9657, 11245, 15177, 16317, 17489, 19135},
119 { 2319, 2899, 4980, 6936, 8404, 13489, 15554, 16281, 20270, 20911},
120 { 2187, 2919, 4610, 5875, 7390, 12556, 14033, 16794, 20998, 21769},
121 { 2235, 2923, 5121, 6259, 8099, 13589, 15340, 16340, 17927, 20159},
122 { 1765, 2638, 3751, 5730, 7883, 10108, 13633, 15419, 16808, 18574},
123 { 3460, 5741, 9596, 11742, 14413, 16080, 18173, 19090, 20845, 21601},
124 { 3735, 4426, 6199, 7363, 9250, 14489, 16035, 17026, 19873, 20876},
125 { 3521, 4778, 6887, 8680, 12717, 14322, 15950, 18050, 20166, 21145},
126 { 2141, 2968, 6865, 8051, 10010, 13159, 14813, 15861, 17528, 18655},
127 { 4148, 6128, 9028, 10871, 12686, 14005, 15976, 17208, 19587, 20595},
128 { 4403, 5367, 6634, 8371, 10163, 11599, 14963, 16331, 17982, 18768},
129 { 4091, 5386, 6852, 8770, 11563, 13290, 15728, 16930, 19056, 20102},
130 { 2746, 3625, 5299, 7504, 10262, 11432, 13172, 15490, 16875, 17514},
131 { 2248, 3556, 8539, 10590, 12665, 14696, 16515, 17824, 20268, 21247},
132 { 1279, 1960, 3920, 7793, 10153, 14753, 16646, 18139, 20679, 21466},
133 { 2440, 3475, 6737, 8654, 12190, 14588, 17119, 17925, 19110, 19979},
134 { 1879, 2514, 4497, 7572, 10017, 14948, 16141, 16897, 18397, 19376},
135 { 2804, 3688, 7490, 10086, 11218, 12711, 16307, 17470, 20077, 21126},
136 { 2023, 2682, 3873, 8268, 10255, 11645, 15187, 17102, 18965, 19788},
137 { 2823, 3605, 5815, 8595, 10085, 11469, 16568, 17462, 18754, 19876},
138 { 2851, 3681, 5280, 7648, 9173, 10338, 14961, 16148, 17559, 18474},
139 { 1348, 2645, 5826, 8785, 10620, 12831, 16255, 18319, 21133, 22586},
140 { 2141, 3036, 4293, 6082, 7593, 10629, 17158, 18033, 21466, 22084},
141 { 1608, 2375, 3384, 6878, 9970, 11227, 16928, 17650, 20185, 21120},
142 { 2774, 3616, 5014, 6557, 7788, 8959, 17068, 18302, 19537, 20542},
143 { 1934, 4813, 6204, 7212, 8979, 11665, 15989, 17811, 20426, 21703},
144 { 2288, 3507, 5037, 6841, 8278, 9638, 15066, 16481, 21653, 22214},
145 { 2951, 3771, 4878, 7578, 9016, 10298, 14490, 15242, 20223, 20990},
146 { 3256, 4791, 6601, 7521, 8644, 9707, 13398, 16078, 19102, 20249},
147 { 1827, 2614, 3486, 6039, 12149, 13823, 16191, 17282, 21423, 22041},
148 { 1000, 1704, 3002, 6335, 8471, 10500, 14878, 16979, 20026, 22427},
149 { 1646, 2286, 3109, 7245, 11493, 12791, 16824, 17667, 18981, 20222},
150 { 1708, 2501, 3315, 6737, 8729, 9924, 16089, 17097, 18374, 19917},
151 { 2623, 3510, 4478, 5645, 9862, 11115, 15219, 18067, 19583, 20382},
152 { 2518, 3434, 4728, 6388, 8082, 9285, 13162, 18383, 19819, 20552},
153 { 1726, 2383, 4090, 6303, 7805, 12845, 14612, 17608, 19269, 20181},
154 { 2860, 3735, 4838, 6044, 7254, 8402, 14031, 16381, 18037, 19410},
155 { 4247, 5993, 7952, 9792, 12342, 14653, 17527, 18774, 20831, 21699},
156 { 3502, 4051, 5680, 6805, 8146, 11945, 16649, 17444, 20390, 21564},
157 { 3151, 4893, 5899, 7198, 11418, 13073, 15124, 17673, 20520, 21861},
158 { 3960, 4848, 5926, 7259, 8811, 10529, 15661, 16560, 18196, 20183},
159 { 4499, 6604, 8036, 9251, 10804, 12627, 15880, 17512, 20020, 21046},
160 { 4251, 5541, 6654, 8318, 9900, 11686, 15100, 17093, 20572, 21687},
161 { 3769, 5327, 7865, 9360, 10684, 11818, 13660, 15366, 18733, 19882},
162 { 3083, 3969, 6248, 8121, 9798, 10994, 12393, 13686, 17888, 19105},
163 { 2731, 4670, 7063, 9201, 11346, 13735, 16875, 18797, 20787, 22360},
164 { 1187, 2227, 4737, 7214, 9622, 12633, 15404, 17968, 20262, 23533},
165 { 1911, 2477, 3915, 10098, 11616, 12955, 16223, 17138, 19270, 20729},
166 { 1764, 2519, 3887, 6944, 9150, 12590, 16258, 16984, 17924, 18435},
167 { 1400, 3674, 7131, 8718, 10688, 12508, 15708, 17711, 19720, 21068},
168 { 2322, 3073, 4287, 8108, 9407, 10628, 15862, 16693, 19714, 21474},
169 { 2630, 3339, 4758, 8360, 10274, 11333, 12880, 17374, 19221, 19936},
170 { 1721, 2577, 5553, 7195, 8651, 10686, 15069, 16953, 18703, 19929}
171};
172
173/**
174 * second stage LSP codebook, high and low parts
175 (both 5-dimensional, with 32 entries (3.2.4 of G.729)
176 */
177static const int16_t cb_lsp_2nd[1<<VQ_2ND_BITS][10] = { /* (2.13) */
178 { -435, -815, -742, 1033, -518, 582, -1201, 829, 86, 385},
179 { -833, -891, 463, -8, -1251, 1450, 72, -231, 864, 661},
180 {-1021, 231, -306, 321, -220, -163, -526, -754, -1633, 267},
181 { 57, -198, -339, -33, -1468, 573, 796, -169, -631, 816},
182 { 171, -350, 294, 1660, 453, 519, 291, 159, -640, -1296},
183 { -701, -842, -58, 950, 892, 1549, 715, 527, -714, -193},
184 { 584, 31, -289, 356, -333, -457, 612, -283, -1381, -741},
185 { -109, -808, 231, 77, -87, -344, 1341, 1087, -654, -569},
186 { -859, 1236, 550, 854, 714, -543, -1752, -195, -98, -276},
187 { -877, -954, -1248, -299, 212, -235, -728, 949, 1517, 895},
188 { -77, 344, -620, 763, 413, 502, -362, -960, -483, 1386},
189 { -314, -307, -256, -1260, -429, 450, -466, -108, 1010, 2223},
190 { 711, 693, 521, 650, 1305, -28, -378, 744, -1005, 240},
191 { -112, -271, -500, 946, 1733, 271, -15, 909, -259, 1688},
192 { 575, -10, -468, -199, 1101, -1011, 581, -53, -747, 878},
193 { 145, -285, -1280, -398, 36, -498, -1377, 18, -444, 1483},
194 {-1133, -835, 1350, 1284, -95, 1015, -222, 443, 372, -354},
195 {-1459, -1237, 416, -213, 466, 669, 659, 1640, 932, 534},
196 { -15, 66, 468, 1019, -748, 1385, -182, -907, -721, -262},
197 { -338, 148, 1445, 75, -760, 569, 1247, 337, 416, -121},
198 { 389, 239, 1568, 981, 113, 369, -1003, -507, -587, -904},
199 { -312, -98, 949, 31, 1104, 72, -141, 1465, 63, -785},
200 { 1127, 584, 835, 277, -1159, 208, 301, -882, 117, -404},
201 { 539, -114, 856, -493, 223, -912, 623, -76, 276, -440},
202 { 2197, 2337, 1268, 670, 304, -267, -525, 140, 882, -139},
203 {-1596, 550, 801, -456, -56, -697, 865, 1060, 413, 446},
204 { 1154, 593, -77, 1237, -31, 581, -1037, -895, 669, 297},
205 { 397, 558, 203, -797, -919, 3, 692, -292, 1050, 782},
206 { 334, 1475, 632, -80, 48, -1061, -484, 362, -597, -852},
207 { -545, -330, -429, -680, 1133, -1182, -744, 1340, 262, 63},
208 { 1320, 827, -398, -576, 341, -774, -483, -1247, -70, 98},
209 { -163, 674, -11, -886, 531, -1125, -265, -242, 724, 934}
210};
211
212/**
213 * gain codebook (first stage), 8k mode (3.9.2 of G.729)
214 */
215static const int16_t cb_gain_1st_8k[1<<GC_1ST_IDX_BITS_8K][2] = { /*(0.14) (2.13) */
216 { 3242 , 9949 },
217 { 1551 , 2425 },
218 { 2678 , 27162 },
219 { 1921 , 9291 },
220 { 1831 , 5022 },
221 { 1 , 1516 },
222 { 356 , 14756 },
223 { 57 , 5404 },
224};
225
226/**
227 * gain codebook (second stage), 8k mode (3.9.2 of G.729)
228 */
229static const int16_t cb_gain_2nd_8k[1<<GC_2ND_IDX_BITS_8K][2] = { /*(1.14) (1.13) */
230 { 5142 , 592 },
231 { 17299 , 1861 },
232 { 6160 , 2395 },
233 { 16112 , 3392 },
234 { 826 , 2005 },
235 { 18973 , 5935 },
236 { 1994 , 0 },
237 { 15434 , 237 },
238 { 10573 , 2966 },
239 { 15132 , 4914 },
240 { 11569 , 1196 },
241 { 14194 , 1630 },
242 { 8091 , 4861 },
243 { 15161 , 14276 },
244 { 9120 , 525 },
245 { 13260 , 3256 },
246};
247
248/**
249 * gain codebook (first stage), 6.4k mode (D.3.9.2 of G.729)
250 */
251static const int16_t cb_gain_1st_6k4[1<<GC_1ST_IDX_BITS_6K4][2] =
252{ /*(0.14) (1.14)*/
253 { 5849, 0 },
254 { 3171, 9280 },
255 { 3617, 6747 },
256 { 4987, 22294 },
257 { 2929, 1078 },
258 { 6068, 6093 },
259 { 9425, 2731 },
260 { 3915, 12872 },
261};
262
263/**
264 * gain codebook (second stage), 6.4k mode (D.3.9.2 of G.729)
265 */
266static const int16_t cb_gain_2nd_6k4[1<<GC_2ND_IDX_BITS_6K4][2] =
267{ /*(1.14) (1.14)*/
268 { 0, 4175 },
269 {10828, 27602 },
270 {16423, 15724 },
271 { 4478, 7324 },
272 { 3988, 0 },
273 {10291, 11385 },
274 {11956, 10735 },
275 { 7876, 7821 },
276};
277
278/**
279 * 4th order Moving Average (MA) Predictor codebook (3.2.4 of G.729)
280 *
281 * float cb_ma_predictor_float[2][MA_NP][10] = {
282 * {
283 * {0.2570, 0.2780, 0.2800, 0.2736, 0.2757, 0.2764, 0.2675, 0.2678, 0.2779, 0.2647},
284 * {0.2142, 0.2194, 0.2331, 0.2230, 0.2272, 0.2252, 0.2148, 0.2123, 0.2115, 0.2096},
285 * {0.1670, 0.1523, 0.1567, 0.1580, 0.1601, 0.1569, 0.1589, 0.1555, 0.1474, 0.1571},
286 * {0.1238, 0.0925, 0.0798, 0.0923, 0.0890, 0.0828, 0.1010, 0.0988, 0.0872, 0.1060},
287 * },
288 * {
289 * {0.2360, 0.2405, 0.2499, 0.2495, 0.2517, 0.2591, 0.2636, 0.2625, 0.2551, 0.2310},
290 * {0.1285, 0.0925, 0.0779, 0.1060, 0.1183, 0.1176, 0.1277, 0.1268, 0.1193, 0.1211},
291 * {0.0981, 0.0589, 0.0401, 0.0654, 0.0761, 0.0728, 0.0841, 0.0826, 0.0776, 0.0891},
292 * {0.0923, 0.0486, 0.0287, 0.0498, 0.0526, 0.0482, 0.0621, 0.0636, 0.0584, 0.0794},
293 * },
294 * };
295 * 15
296 * cb_ma_predictor[j][k][i] = floor( 2 * cb_ma_predictor_float[j][k][i] )
297 *
298 * j=0..1, i=0..9, k=0..MA_NP-1
299 */
300static const int16_t cb_ma_predictor[2][MA_NP][10] = { /* (0.15) */
301 {
302 { 8421, 9109, 9175, 8965, 9034, 9057, 8765, 8775, 9106, 8673},
303 { 7018, 7189, 7638, 7307, 7444, 7379, 7038, 6956, 6930, 6868},
304 { 5472, 4990, 5134, 5177, 5246, 5141, 5206, 5095, 4830, 5147},
305 { 4056, 3031, 2614, 3024, 2916, 2713, 3309, 3237, 2857, 3473}
306 },
307 {
308 { 7733, 7880, 8188, 8175, 8247, 8490, 8637, 8601, 8359, 7569},
309 { 4210, 3031, 2552, 3473, 3876, 3853, 4184, 4154, 3909, 3968},
310 { 3214, 1930, 1313, 2143, 2493, 2385, 2755, 2706, 2542, 2919},
311 { 3024, 1592, 940, 1631, 1723, 1579, 2034, 2084, 1913, 2601}
312 }
313};
314
315/**
316 * 15 3
317 * cb_ma_predictor_sum[j][i] = floor( 2 * (1.0 - sum ( cb_ma_predictor_float[j][k][i] ) ) )
318 * k=0
319 * j=0..1, i=0..9
320 */
321static const int16_t cb_ma_predictor_sum[2][10] = { /* (0.15) */
322 { 7798, 8447, 8205, 8293, 8126, 8477, 8447, 8703, 9043, 8604},
323 {14585, 18333, 19772, 17344, 16426, 16459, 15155, 15220, 16043, 15708}
324};
325
326/**
327 * 12
328 * 2
329 * cb_ma_predictor_sum_inv[j][i] = floor(---------------------------------------------)
330 * 3
331 * 1.0 - sum ( cb_ma_predictor_float[j][k][i] )
332 * k=0
333 * j=0..1, i=0..9
334 */
335static const int16_t cb_ma_predictor_sum_inv[2][10] = { /* (3.12) */
336 {17210, 15888, 16357, 16183, 16516, 15833, 15888, 15421, 14840, 15597},
337 { 9202, 7320, 6788, 7738, 8170, 8154, 8856, 8818, 8366, 8544}
338};
339
340/**
341 * MA prediction coefficients (3.9.1 of G.729, near Equation 69)
342 */
343static const uint16_t ma_prediction_coeff[4] = { /* (0.13) */
344 5571, 4751, 2785, 1556
345};
346
347/**
348 * initial LSP coefficients belongs to virtual frame preceding the
349 * first frame of the stream
350 */
351static const int16_t lsp_init[10]= { /* (0.15) */
352 30000, 26000, 21000, 15000, 8000, 0, -8000,-15000,-21000,-26000
353};
354
355/**
356 * additional "phase" post-processing filter impulse response (D.6.2 of G.729)
357 *
358 * Table contains three impulse responses, correspond to
359 * different amounts of spreading.
360 */
361static const int16_t phase_filter[3][40] =
362{
363 { // maximum spreading (for noise-like segments)
364 14690, 11518, 1268, -2762, -5672, 7514, -36, -2808, -3041, 4823,
365 2952, -8425, 3785, 1455, 2179, -8638, 8051, -2104, -1455, 777,
366 1108, -2386, 2254, -364, -675, -2104, 6046, -5682, 1072, 3123,
367 -5059, 5312, -2330, -3729, 6924, -3890, 675, -1776, 29, 10145,
368 },
369 { // medium spreading
370 30274, 3831, -4037, 2972, -1049, -1003, 2477, -3044, 2815, -2232,
371 1753, -1612, 1714, -1776, 1543, -1009, 429, -170, 472, -1265,
372 2176, -2707, 2523, -1622, 344, 826, -1530, 1724, -1658, 1701,
373 -2064, 2644, -3061, 2897, -1979, 557, 780, -1370, 842, 655,
374 },
375 { // no spreading (for voiced speech)
376 32767, 0, 0, 0, 0, 0, 0, 0, 0, 0,
377 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
378 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
379 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
380 }
381};
382#endif /* AVCODEC_G729DATA_H */
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