/
g729data.h
382 lines (364 loc) · 19 KB
/
g729data.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
/*
* data for G.729, G729 Annex D decoders
* Copyright (c) 2007 Vladimir Voroshilov
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_G729DATA_H
#define AVCODEC_G729DATA_H
#include <stdint.h>
#define MA_NP 4 ///< Moving Average (MA) prediction order
#define VQ_1ST_BITS 7 ///< first stage vector of quantizer (size in bits)
#define VQ_2ND_BITS 5 ///< second stage vector of quantizer (size in bits)
#define GC_1ST_IDX_BITS_8K 3 ///< gain codebook (first stage) index, 8k mode (size in bits)
#define GC_2ND_IDX_BITS_8K 4 ///< gain codebook (second stage) index, 8k mode (size in bits)
#define GC_1ST_IDX_BITS_6K4 3 ///< gain codebook (first stage) index, 6.4k mode (size in bits)
#define GC_2ND_IDX_BITS_6K4 3 ///< gain codebook (second stage) index, 6.4k mode (size in bits)
/**
* first stage LSP codebook
* (10-dimensional, with 128 entries (3.24 of G.729)
*/
static const int16_t cb_lsp_1st[1<<VQ_1ST_BITS][10] = { /* (2.13) */
{ 1486, 2168, 3751, 9074, 12134, 13944, 17983, 19173, 21190, 21820},
{ 1730, 2640, 3450, 4870, 6126, 7876, 15644, 17817, 20294, 21902},
{ 1568, 2256, 3088, 4874, 11063, 13393, 18307, 19293, 21109, 21741},
{ 1733, 2512, 3357, 4708, 6977, 10296, 17024, 17956, 19145, 20350},
{ 1744, 2436, 3308, 8731, 10432, 12007, 15614, 16639, 21359, 21913},
{ 1786, 2369, 3372, 4521, 6795, 12963, 17674, 18988, 20855, 21640},
{ 1631, 2433, 3361, 6328, 10709, 12013, 13277, 13904, 19441, 21088},
{ 1489, 2364, 3291, 6250, 9227, 10403, 13843, 15278, 17721, 21451},
{ 1869, 2533, 3475, 4365, 9152, 14513, 15908, 17022, 20611, 21411},
{ 2070, 3025, 4333, 5854, 7805, 9231, 10597, 16047, 20109, 21834},
{ 1910, 2673, 3419, 4261, 11168, 15111, 16577, 17591, 19310, 20265},
{ 1141, 1815, 2624, 4623, 6495, 9588, 13968, 16428, 19351, 21286},
{ 2192, 3171, 4707, 5808, 10904, 12500, 14162, 15664, 21124, 21789},
{ 1286, 1907, 2548, 3453, 9574, 11964, 15978, 17344, 19691, 22495},
{ 1921, 2720, 4604, 6684, 11503, 12992, 14350, 15262, 16997, 20791},
{ 2052, 2759, 3897, 5246, 6638, 10267, 15834, 16814, 18149, 21675},
{ 1798, 2497, 5617, 11449, 13189, 14711, 17050, 18195, 20307, 21182},
{ 1009, 1647, 2889, 5709, 9541, 12354, 15231, 18494, 20966, 22033},
{ 3016, 3794, 5406, 7469, 12488, 13984, 15328, 16334, 19952, 20791},
{ 2203, 3040, 3796, 5442, 11987, 13512, 14931, 16370, 17856, 18803},
{ 2912, 4292, 7988, 9572, 11562, 13244, 14556, 16529, 20004, 21073},
{ 2861, 3607, 5923, 7034, 9234, 12054, 13729, 18056, 20262, 20974},
{ 3069, 4311, 5967, 7367, 11482, 12699, 14309, 16233, 18333, 19172},
{ 2434, 3661, 4866, 5798, 10383, 11722, 13049, 15668, 18862, 19831},
{ 2020, 2605, 3860, 9241, 13275, 14644, 16010, 17099, 19268, 20251},
{ 1877, 2809, 3590, 4707, 11056, 12441, 15622, 17168, 18761, 19907},
{ 2107, 2873, 3673, 5799, 13579, 14687, 15938, 17077, 18890, 19831},
{ 1612, 2284, 2944, 3572, 8219, 13959, 15924, 17239, 18592, 20117},
{ 2420, 3156, 6542, 10215, 12061, 13534, 15305, 16452, 18717, 19880},
{ 1667, 2612, 3534, 5237, 10513, 11696, 12940, 16798, 18058, 19378},
{ 2388, 3017, 4839, 9333, 11413, 12730, 15024, 16248, 17449, 18677},
{ 1875, 2786, 4231, 6320, 8694, 10149, 11785, 17013, 18608, 19960},
{ 679, 1411, 4654, 8006, 11446, 13249, 15763, 18127, 20361, 21567},
{ 1838, 2596, 3578, 4608, 5650, 11274, 14355, 15886, 20579, 21754},
{ 1303, 1955, 2395, 3322, 12023, 13764, 15883, 18077, 20180, 21232},
{ 1438, 2102, 2663, 3462, 8328, 10362, 13763, 17248, 19732, 22344},
{ 860, 1904, 6098, 7775, 9815, 12007, 14821, 16709, 19787, 21132},
{ 1673, 2723, 3704, 6125, 7668, 9447, 13683, 14443, 20538, 21731},
{ 1246, 1849, 2902, 4508, 7221, 12710, 14835, 16314, 19335, 22720},
{ 1525, 2260, 3862, 5659, 7342, 11748, 13370, 14442, 18044, 21334},
{ 1196, 1846, 3104, 7063, 10972, 12905, 14814, 17037, 19922, 22636},
{ 2147, 3106, 4475, 6511, 8227, 9765, 10984, 12161, 18971, 21300},
{ 1585, 2405, 2994, 4036, 11481, 13177, 14519, 15431, 19967, 21275},
{ 1778, 2688, 3614, 4680, 9465, 11064, 12473, 16320, 19742, 20800},
{ 1862, 2586, 3492, 6719, 11708, 13012, 14364, 16128, 19610, 20425},
{ 1395, 2156, 2669, 3386, 10607, 12125, 13614, 16705, 18976, 21367},
{ 1444, 2117, 3286, 6233, 9423, 12981, 14998, 15853, 17188, 21857},
{ 2004, 2895, 3783, 4897, 6168, 7297, 12609, 16445, 19297, 21465},
{ 1495, 2863, 6360, 8100, 11399, 14271, 15902, 17711, 20479, 22061},
{ 2484, 3114, 5718, 7097, 8400, 12616, 14073, 14847, 20535, 21396},
{ 2424, 3277, 5296, 6284, 11290, 12903, 16022, 17508, 19333, 20283},
{ 2565, 3778, 5360, 6989, 8782, 10428, 14390, 15742, 17770, 21734},
{ 2727, 3384, 6613, 9254, 10542, 12236, 14651, 15687, 20074, 21102},
{ 1916, 2953, 6274, 8088, 9710, 10925, 12392, 16434, 20010, 21183},
{ 3384, 4366, 5349, 7667, 11180, 12605, 13921, 15324, 19901, 20754},
{ 3075, 4283, 5951, 7619, 9604, 11010, 12384, 14006, 20658, 21497},
{ 1751, 2455, 5147, 9966, 11621, 13176, 14739, 16470, 20788, 21756},
{ 1442, 2188, 3330, 6813, 8929, 12135, 14476, 15306, 19635, 20544},
{ 2294, 2895, 4070, 8035, 12233, 13416, 14762, 17367, 18952, 19688},
{ 1937, 2659, 4602, 6697, 9071, 12863, 14197, 15230, 16047, 18877},
{ 2071, 2663, 4216, 9445, 10887, 12292, 13949, 14909, 19236, 20341},
{ 1740, 2491, 3488, 8138, 9656, 11153, 13206, 14688, 20896, 21907},
{ 2199, 2881, 4675, 8527, 10051, 11408, 14435, 15463, 17190, 20597},
{ 1943, 2988, 4177, 6039, 7478, 8536, 14181, 15551, 17622, 21579},
{ 1825, 3175, 7062, 9818, 12824, 15450, 18330, 19856, 21830, 22412},
{ 2464, 3046, 4822, 5977, 7696, 15398, 16730, 17646, 20588, 21320},
{ 2550, 3393, 5305, 6920, 10235, 14083, 18143, 19195, 20681, 21336},
{ 3003, 3799, 5321, 6437, 7919, 11643, 15810, 16846, 18119, 18980},
{ 3455, 4157, 6838, 8199, 9877, 12314, 15905, 16826, 19949, 20892},
{ 3052, 3769, 4891, 5810, 6977, 10126, 14788, 15990, 19773, 20904},
{ 3671, 4356, 5827, 6997, 8460, 12084, 14154, 14939, 19247, 20423},
{ 2716, 3684, 5246, 6686, 8463, 10001, 12394, 14131, 16150, 19776},
{ 1945, 2638, 4130, 7995, 14338, 15576, 17057, 18206, 20225, 20997},
{ 2304, 2928, 4122, 4824, 5640, 13139, 15825, 16938, 20108, 21054},
{ 1800, 2516, 3350, 5219, 13406, 15948, 17618, 18540, 20531, 21252},
{ 1436, 2224, 2753, 4546, 9657, 11245, 15177, 16317, 17489, 19135},
{ 2319, 2899, 4980, 6936, 8404, 13489, 15554, 16281, 20270, 20911},
{ 2187, 2919, 4610, 5875, 7390, 12556, 14033, 16794, 20998, 21769},
{ 2235, 2923, 5121, 6259, 8099, 13589, 15340, 16340, 17927, 20159},
{ 1765, 2638, 3751, 5730, 7883, 10108, 13633, 15419, 16808, 18574},
{ 3460, 5741, 9596, 11742, 14413, 16080, 18173, 19090, 20845, 21601},
{ 3735, 4426, 6199, 7363, 9250, 14489, 16035, 17026, 19873, 20876},
{ 3521, 4778, 6887, 8680, 12717, 14322, 15950, 18050, 20166, 21145},
{ 2141, 2968, 6865, 8051, 10010, 13159, 14813, 15861, 17528, 18655},
{ 4148, 6128, 9028, 10871, 12686, 14005, 15976, 17208, 19587, 20595},
{ 4403, 5367, 6634, 8371, 10163, 11599, 14963, 16331, 17982, 18768},
{ 4091, 5386, 6852, 8770, 11563, 13290, 15728, 16930, 19056, 20102},
{ 2746, 3625, 5299, 7504, 10262, 11432, 13172, 15490, 16875, 17514},
{ 2248, 3556, 8539, 10590, 12665, 14696, 16515, 17824, 20268, 21247},
{ 1279, 1960, 3920, 7793, 10153, 14753, 16646, 18139, 20679, 21466},
{ 2440, 3475, 6737, 8654, 12190, 14588, 17119, 17925, 19110, 19979},
{ 1879, 2514, 4497, 7572, 10017, 14948, 16141, 16897, 18397, 19376},
{ 2804, 3688, 7490, 10086, 11218, 12711, 16307, 17470, 20077, 21126},
{ 2023, 2682, 3873, 8268, 10255, 11645, 15187, 17102, 18965, 19788},
{ 2823, 3605, 5815, 8595, 10085, 11469, 16568, 17462, 18754, 19876},
{ 2851, 3681, 5280, 7648, 9173, 10338, 14961, 16148, 17559, 18474},
{ 1348, 2645, 5826, 8785, 10620, 12831, 16255, 18319, 21133, 22586},
{ 2141, 3036, 4293, 6082, 7593, 10629, 17158, 18033, 21466, 22084},
{ 1608, 2375, 3384, 6878, 9970, 11227, 16928, 17650, 20185, 21120},
{ 2774, 3616, 5014, 6557, 7788, 8959, 17068, 18302, 19537, 20542},
{ 1934, 4813, 6204, 7212, 8979, 11665, 15989, 17811, 20426, 21703},
{ 2288, 3507, 5037, 6841, 8278, 9638, 15066, 16481, 21653, 22214},
{ 2951, 3771, 4878, 7578, 9016, 10298, 14490, 15242, 20223, 20990},
{ 3256, 4791, 6601, 7521, 8644, 9707, 13398, 16078, 19102, 20249},
{ 1827, 2614, 3486, 6039, 12149, 13823, 16191, 17282, 21423, 22041},
{ 1000, 1704, 3002, 6335, 8471, 10500, 14878, 16979, 20026, 22427},
{ 1646, 2286, 3109, 7245, 11493, 12791, 16824, 17667, 18981, 20222},
{ 1708, 2501, 3315, 6737, 8729, 9924, 16089, 17097, 18374, 19917},
{ 2623, 3510, 4478, 5645, 9862, 11115, 15219, 18067, 19583, 20382},
{ 2518, 3434, 4728, 6388, 8082, 9285, 13162, 18383, 19819, 20552},
{ 1726, 2383, 4090, 6303, 7805, 12845, 14612, 17608, 19269, 20181},
{ 2860, 3735, 4838, 6044, 7254, 8402, 14031, 16381, 18037, 19410},
{ 4247, 5993, 7952, 9792, 12342, 14653, 17527, 18774, 20831, 21699},
{ 3502, 4051, 5680, 6805, 8146, 11945, 16649, 17444, 20390, 21564},
{ 3151, 4893, 5899, 7198, 11418, 13073, 15124, 17673, 20520, 21861},
{ 3960, 4848, 5926, 7259, 8811, 10529, 15661, 16560, 18196, 20183},
{ 4499, 6604, 8036, 9251, 10804, 12627, 15880, 17512, 20020, 21046},
{ 4251, 5541, 6654, 8318, 9900, 11686, 15100, 17093, 20572, 21687},
{ 3769, 5327, 7865, 9360, 10684, 11818, 13660, 15366, 18733, 19882},
{ 3083, 3969, 6248, 8121, 9798, 10994, 12393, 13686, 17888, 19105},
{ 2731, 4670, 7063, 9201, 11346, 13735, 16875, 18797, 20787, 22360},
{ 1187, 2227, 4737, 7214, 9622, 12633, 15404, 17968, 20262, 23533},
{ 1911, 2477, 3915, 10098, 11616, 12955, 16223, 17138, 19270, 20729},
{ 1764, 2519, 3887, 6944, 9150, 12590, 16258, 16984, 17924, 18435},
{ 1400, 3674, 7131, 8718, 10688, 12508, 15708, 17711, 19720, 21068},
{ 2322, 3073, 4287, 8108, 9407, 10628, 15862, 16693, 19714, 21474},
{ 2630, 3339, 4758, 8360, 10274, 11333, 12880, 17374, 19221, 19936},
{ 1721, 2577, 5553, 7195, 8651, 10686, 15069, 16953, 18703, 19929}
};
/**
* second stage LSP codebook, high and low parts
(both 5-dimensional, with 32 entries (3.2.4 of G.729)
*/
static const int16_t cb_lsp_2nd[1<<VQ_2ND_BITS][10] = { /* (2.13) */
{ -435, -815, -742, 1033, -518, 582, -1201, 829, 86, 385},
{ -833, -891, 463, -8, -1251, 1450, 72, -231, 864, 661},
{-1021, 231, -306, 321, -220, -163, -526, -754, -1633, 267},
{ 57, -198, -339, -33, -1468, 573, 796, -169, -631, 816},
{ 171, -350, 294, 1660, 453, 519, 291, 159, -640, -1296},
{ -701, -842, -58, 950, 892, 1549, 715, 527, -714, -193},
{ 584, 31, -289, 356, -333, -457, 612, -283, -1381, -741},
{ -109, -808, 231, 77, -87, -344, 1341, 1087, -654, -569},
{ -859, 1236, 550, 854, 714, -543, -1752, -195, -98, -276},
{ -877, -954, -1248, -299, 212, -235, -728, 949, 1517, 895},
{ -77, 344, -620, 763, 413, 502, -362, -960, -483, 1386},
{ -314, -307, -256, -1260, -429, 450, -466, -108, 1010, 2223},
{ 711, 693, 521, 650, 1305, -28, -378, 744, -1005, 240},
{ -112, -271, -500, 946, 1733, 271, -15, 909, -259, 1688},
{ 575, -10, -468, -199, 1101, -1011, 581, -53, -747, 878},
{ 145, -285, -1280, -398, 36, -498, -1377, 18, -444, 1483},
{-1133, -835, 1350, 1284, -95, 1015, -222, 443, 372, -354},
{-1459, -1237, 416, -213, 466, 669, 659, 1640, 932, 534},
{ -15, 66, 468, 1019, -748, 1385, -182, -907, -721, -262},
{ -338, 148, 1445, 75, -760, 569, 1247, 337, 416, -121},
{ 389, 239, 1568, 981, 113, 369, -1003, -507, -587, -904},
{ -312, -98, 949, 31, 1104, 72, -141, 1465, 63, -785},
{ 1127, 584, 835, 277, -1159, 208, 301, -882, 117, -404},
{ 539, -114, 856, -493, 223, -912, 623, -76, 276, -440},
{ 2197, 2337, 1268, 670, 304, -267, -525, 140, 882, -139},
{-1596, 550, 801, -456, -56, -697, 865, 1060, 413, 446},
{ 1154, 593, -77, 1237, -31, 581, -1037, -895, 669, 297},
{ 397, 558, 203, -797, -919, 3, 692, -292, 1050, 782},
{ 334, 1475, 632, -80, 48, -1061, -484, 362, -597, -852},
{ -545, -330, -429, -680, 1133, -1182, -744, 1340, 262, 63},
{ 1320, 827, -398, -576, 341, -774, -483, -1247, -70, 98},
{ -163, 674, -11, -886, 531, -1125, -265, -242, 724, 934}
};
/**
* gain codebook (first stage), 8k mode (3.9.2 of G.729)
*/
static const int16_t cb_gain_1st_8k[1<<GC_1ST_IDX_BITS_8K][2] = { /*(0.14) (2.13) */
{ 3242 , 9949 },
{ 1551 , 2425 },
{ 2678 , 27162 },
{ 1921 , 9291 },
{ 1831 , 5022 },
{ 1 , 1516 },
{ 356 , 14756 },
{ 57 , 5404 },
};
/**
* gain codebook (second stage), 8k mode (3.9.2 of G.729)
*/
static const int16_t cb_gain_2nd_8k[1<<GC_2ND_IDX_BITS_8K][2] = { /*(1.14) (1.13) */
{ 5142 , 592 },
{ 17299 , 1861 },
{ 6160 , 2395 },
{ 16112 , 3392 },
{ 826 , 2005 },
{ 18973 , 5935 },
{ 1994 , 0 },
{ 15434 , 237 },
{ 10573 , 2966 },
{ 15132 , 4914 },
{ 11569 , 1196 },
{ 14194 , 1630 },
{ 8091 , 4861 },
{ 15161 , 14276 },
{ 9120 , 525 },
{ 13260 , 3256 },
};
/**
* gain codebook (first stage), 6.4k mode (D.3.9.2 of G.729)
*/
static const int16_t cb_gain_1st_6k4[1<<GC_1ST_IDX_BITS_6K4][2] =
{ /*(0.14) (1.14)*/
{ 5849, 0 },
{ 3171, 9280 },
{ 3617, 6747 },
{ 4987, 22294 },
{ 2929, 1078 },
{ 6068, 6093 },
{ 9425, 2731 },
{ 3915, 12872 },
};
/**
* gain codebook (second stage), 6.4k mode (D.3.9.2 of G.729)
*/
static const int16_t cb_gain_2nd_6k4[1<<GC_2ND_IDX_BITS_6K4][2] =
{ /*(1.14) (1.14)*/
{ 0, 4175 },
{10828, 27602 },
{16423, 15724 },
{ 4478, 7324 },
{ 3988, 0 },
{10291, 11385 },
{11956, 10735 },
{ 7876, 7821 },
};
/**
* 4th order Moving Average (MA) Predictor codebook (3.2.4 of G.729)
*
* float cb_ma_predictor_float[2][MA_NP][10] = {
* {
* {0.2570, 0.2780, 0.2800, 0.2736, 0.2757, 0.2764, 0.2675, 0.2678, 0.2779, 0.2647},
* {0.2142, 0.2194, 0.2331, 0.2230, 0.2272, 0.2252, 0.2148, 0.2123, 0.2115, 0.2096},
* {0.1670, 0.1523, 0.1567, 0.1580, 0.1601, 0.1569, 0.1589, 0.1555, 0.1474, 0.1571},
* {0.1238, 0.0925, 0.0798, 0.0923, 0.0890, 0.0828, 0.1010, 0.0988, 0.0872, 0.1060},
* },
* {
* {0.2360, 0.2405, 0.2499, 0.2495, 0.2517, 0.2591, 0.2636, 0.2625, 0.2551, 0.2310},
* {0.1285, 0.0925, 0.0779, 0.1060, 0.1183, 0.1176, 0.1277, 0.1268, 0.1193, 0.1211},
* {0.0981, 0.0589, 0.0401, 0.0654, 0.0761, 0.0728, 0.0841, 0.0826, 0.0776, 0.0891},
* {0.0923, 0.0486, 0.0287, 0.0498, 0.0526, 0.0482, 0.0621, 0.0636, 0.0584, 0.0794},
* },
* };
* 15
* cb_ma_predictor[j][k][i] = floor( 2 * cb_ma_predictor_float[j][k][i] )
*
* j=0..1, i=0..9, k=0..MA_NP-1
*/
static const int16_t cb_ma_predictor[2][MA_NP][10] = { /* (0.15) */
{
{ 8421, 9109, 9175, 8965, 9034, 9057, 8765, 8775, 9106, 8673},
{ 7018, 7189, 7638, 7307, 7444, 7379, 7038, 6956, 6930, 6868},
{ 5472, 4990, 5134, 5177, 5246, 5141, 5206, 5095, 4830, 5147},
{ 4056, 3031, 2614, 3024, 2916, 2713, 3309, 3237, 2857, 3473}
},
{
{ 7733, 7880, 8188, 8175, 8247, 8490, 8637, 8601, 8359, 7569},
{ 4210, 3031, 2552, 3473, 3876, 3853, 4184, 4154, 3909, 3968},
{ 3214, 1930, 1313, 2143, 2493, 2385, 2755, 2706, 2542, 2919},
{ 3024, 1592, 940, 1631, 1723, 1579, 2034, 2084, 1913, 2601}
}
};
/**
* 15 3
* cb_ma_predictor_sum[j][i] = floor( 2 * (1.0 - sum ( cb_ma_predictor_float[j][k][i] ) ) )
* k=0
* j=0..1, i=0..9
*/
static const int16_t cb_ma_predictor_sum[2][10] = { /* (0.15) */
{ 7798, 8447, 8205, 8293, 8126, 8477, 8447, 8703, 9043, 8604},
{14585, 18333, 19772, 17344, 16426, 16459, 15155, 15220, 16043, 15708}
};
/**
* 12
* 2
* cb_ma_predictor_sum_inv[j][i] = floor(---------------------------------------------)
* 3
* 1.0 - sum ( cb_ma_predictor_float[j][k][i] )
* k=0
* j=0..1, i=0..9
*/
static const int16_t cb_ma_predictor_sum_inv[2][10] = { /* (3.12) */
{17210, 15888, 16357, 16183, 16516, 15833, 15888, 15421, 14840, 15597},
{ 9202, 7320, 6788, 7738, 8170, 8154, 8856, 8818, 8366, 8544}
};
/**
* MA prediction coefficients (3.9.1 of G.729, near Equation 69)
*/
static const uint16_t ma_prediction_coeff[4] = { /* (0.13) */
5571, 4751, 2785, 1556
};
/**
* initial LSP coefficients belongs to virtual frame preceding the
* first frame of the stream
*/
static const int16_t lsp_init[10]= { /* (0.15) */
30000, 26000, 21000, 15000, 8000, 0, -8000,-15000,-21000,-26000
};
/**
* additional "phase" post-processing filter impulse response (D.6.2 of G.729)
*
* Table contains three impulse responses, correspond to
* different amounts of spreading.
*/
static const int16_t phase_filter[3][40] =
{
{ // maximum spreading (for noise-like segments)
14690, 11518, 1268, -2762, -5672, 7514, -36, -2808, -3041, 4823,
2952, -8425, 3785, 1455, 2179, -8638, 8051, -2104, -1455, 777,
1108, -2386, 2254, -364, -675, -2104, 6046, -5682, 1072, 3123,
-5059, 5312, -2330, -3729, 6924, -3890, 675, -1776, 29, 10145,
},
{ // medium spreading
30274, 3831, -4037, 2972, -1049, -1003, 2477, -3044, 2815, -2232,
1753, -1612, 1714, -1776, 1543, -1009, 429, -170, 472, -1265,
2176, -2707, 2523, -1622, 344, 826, -1530, 1724, -1658, 1701,
-2064, 2644, -3061, 2897, -1979, 557, 780, -1370, 842, 655,
},
{ // no spreading (for voiced speech)
32767, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
}
};
#endif /* AVCODEC_G729DATA_H */