1/***********************************************************************
2Copyright (c) 2006-2011, Skype Limited. All rights reserved.
3Redistribution and use in source and binary forms, with or without
4modification, are permitted provided that the following conditions
5are met:
6- Redistributions of source code must retain the above copyright notice,
7this list of conditions and the following disclaimer.
8- Redistributions in binary form must reproduce the above copyright
9notice, this list of conditions and the following disclaimer in the
10documentation and/or other materials provided with the distribution.
11- Neither the name of Internet Society, IETF or IETF Trust, nor the
12names of specific contributors, may be used to endorse or promote
13products derived from this software without specific prior written
14permission.
15THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
19LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
20CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
21SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
24ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25POSSIBILITY OF SUCH DAMAGE.
26***********************************************************************/
27
28#ifdef HAVE_CONFIG_H
29#include "config.h"
30#endif
31
32#include "tables.h"
33
34const opus_uint8 silk_LTP_per_index_iCDF[3] = {
35       179,     99,      0
36};
37
38static const opus_uint8 silk_LTP_gain_iCDF_0[8] = {
39        71,     56,     43,     30,     21,     12,      6,      0
40};
41
42static const opus_uint8 silk_LTP_gain_iCDF_1[16] = {
43       199,    165,    144,    124,    109,     96,     84,     71,
44        61,     51,     42,     32,     23,     15,      8,      0
45};
46
47static const opus_uint8 silk_LTP_gain_iCDF_2[32] = {
48       241,    225,    211,    199,    187,    175,    164,    153,
49       142,    132,    123,    114,    105,     96,     88,     80,
50        72,     64,     57,     50,     44,     38,     33,     29,
51        24,     20,     16,     12,      9,      5,      2,      0
52};
53
54const opus_int16 silk_LTP_gain_middle_avg_RD_Q14 = 12304;
55
56static const opus_uint8 silk_LTP_gain_BITS_Q5_0[8] = {
57        15,    131,    138,    138,    155,    155,    173,    173
58};
59
60static const opus_uint8 silk_LTP_gain_BITS_Q5_1[16] = {
61        69,     93,    115,    118,    131,    138,    141,    138,
62       150,    150,    155,    150,    155,    160,    166,    160
63};
64
65static const opus_uint8 silk_LTP_gain_BITS_Q5_2[32] = {
66       131,    128,    134,    141,    141,    141,    145,    145,
67       145,    150,    155,    155,    155,    155,    160,    160,
68       160,    160,    166,    166,    173,    173,    182,    192,
69       182,    192,    192,    192,    205,    192,    205,    224
70};
71
72const opus_uint8 * const silk_LTP_gain_iCDF_ptrs[NB_LTP_CBKS] = {
73    silk_LTP_gain_iCDF_0,
74    silk_LTP_gain_iCDF_1,
75    silk_LTP_gain_iCDF_2
76};
77
78const opus_uint8 * const silk_LTP_gain_BITS_Q5_ptrs[NB_LTP_CBKS] = {
79    silk_LTP_gain_BITS_Q5_0,
80    silk_LTP_gain_BITS_Q5_1,
81    silk_LTP_gain_BITS_Q5_2
82};
83
84static const opus_int8 silk_LTP_gain_vq_0[8][5] =
85{
86{
87         4,      6,     24,      7,      5
88},
89{
90         0,      0,      2,      0,      0
91},
92{
93        12,     28,     41,     13,     -4
94},
95{
96        -9,     15,     42,     25,     14
97},
98{
99         1,     -2,     62,     41,     -9
100},
101{
102       -10,     37,     65,     -4,      3
103},
104{
105        -6,      4,     66,      7,     -8
106},
107{
108        16,     14,     38,     -3,     33
109}
110};
111
112static const opus_int8 silk_LTP_gain_vq_1[16][5] =
113{
114{
115        13,     22,     39,     23,     12
116},
117{
118        -1,     36,     64,     27,     -6
119},
120{
121        -7,     10,     55,     43,     17
122},
123{
124         1,      1,      8,      1,      1
125},
126{
127         6,    -11,     74,     53,     -9
128},
129{
130       -12,     55,     76,    -12,      8
131},
132{
133        -3,      3,     93,     27,     -4
134},
135{
136        26,     39,     59,      3,     -8
137},
138{
139         2,      0,     77,     11,      9
140},
141{
142        -8,     22,     44,     -6,      7
143},
144{
145        40,      9,     26,      3,      9
146},
147{
148        -7,     20,    101,     -7,      4
149},
150{
151         3,     -8,     42,     26,      0
152},
153{
154       -15,     33,     68,      2,     23
155},
156{
157        -2,     55,     46,     -2,     15
158},
159{
160         3,     -1,     21,     16,     41
161}
162};
163
164static const opus_int8 silk_LTP_gain_vq_2[32][5] =
165{
166{
167        -6,     27,     61,     39,      5
168},
169{
170       -11,     42,     88,      4,      1
171},
172{
173        -2,     60,     65,      6,     -4
174},
175{
176        -1,     -5,     73,     56,      1
177},
178{
179        -9,     19,     94,     29,     -9
180},
181{
182         0,     12,     99,      6,      4
183},
184{
185         8,    -19,    102,     46,    -13
186},
187{
188         3,      2,     13,      3,      2
189},
190{
191         9,    -21,     84,     72,    -18
192},
193{
194       -11,     46,    104,    -22,      8
195},
196{
197        18,     38,     48,     23,      0
198},
199{
200       -16,     70,     83,    -21,     11
201},
202{
203         5,    -11,    117,     22,     -8
204},
205{
206        -6,     23,    117,    -12,      3
207},
208{
209         3,     -8,     95,     28,      4
210},
211{
212       -10,     15,     77,     60,    -15
213},
214{
215        -1,      4,    124,      2,     -4
216},
217{
218         3,     38,     84,     24,    -25
219},
220{
221         2,     13,     42,     13,     31
222},
223{
224        21,     -4,     56,     46,     -1
225},
226{
227        -1,     35,     79,    -13,     19
228},
229{
230        -7,     65,     88,     -9,    -14
231},
232{
233        20,      4,     81,     49,    -29
234},
235{
236        20,      0,     75,      3,    -17
237},
238{
239         5,     -9,     44,     92,     -8
240},
241{
242         1,     -3,     22,     69,     31
243},
244{
245        -6,     95,     41,    -12,      5
246},
247{
248        39,     67,     16,     -4,      1
249},
250{
251         0,     -6,    120,     55,    -36
252},
253{
254       -13,     44,    122,      4,    -24
255},
256{
257        81,      5,     11,      3,      7
258},
259{
260         2,      0,      9,     10,     88
261}
262};
263
264const opus_int8 * const silk_LTP_vq_ptrs_Q7[NB_LTP_CBKS] = {
265    (opus_int8 *)&silk_LTP_gain_vq_0[0][0],
266    (opus_int8 *)&silk_LTP_gain_vq_1[0][0],
267    (opus_int8 *)&silk_LTP_gain_vq_2[0][0]
268};
269
270/* Maximum frequency-dependent response of the pitch taps above,
271   computed as max(abs(freqz(taps))) */
272static const opus_uint8 silk_LTP_gain_vq_0_gain[8] = {
273      46,      2,     90,     87,     93,     91,     82,     98
274};
275
276static const opus_uint8 silk_LTP_gain_vq_1_gain[16] = {
277     109,    120,    118,     12,    113,    115,    117,    119,
278      99,     59,     87,    111,     63,    111,    112,     80
279};
280
281static const opus_uint8 silk_LTP_gain_vq_2_gain[32] = {
282     126,    124,    125,    124,    129,    121,    126,     23,
283     132,    127,    127,    127,    126,    127,    122,    133,
284     130,    134,    101,    118,    119,    145,    126,     86,
285     124,    120,    123,    119,    170,    173,    107,    109
286};
287
288const opus_uint8 * const silk_LTP_vq_gain_ptrs_Q7[NB_LTP_CBKS] = {
289    &silk_LTP_gain_vq_0_gain[0],
290    &silk_LTP_gain_vq_1_gain[0],
291    &silk_LTP_gain_vq_2_gain[0]
292};
293
294const opus_int8 silk_LTP_vq_sizes[NB_LTP_CBKS] = {
295    8, 16, 32
296};
297