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1 /*
2  * G.723.1 compatible decoder
3  * Copyright (c) 2006 Benjamin Larsson
4  * Copyright (c) 2010 Mohamed Naufal Basheer
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 #include <stdint.h>
24 #include <string.h>
25 
26 #include "libavutil/common.h"
27 #include "libavutil/intmath.h"
28 
29 #include "acelp_vectors.h"
30 #include "celp_math.h"
31 #include "g723_1.h"
32 
33 const int16_t ff_g723_1_cos_tab[COS_TBL_SIZE + 1] = {
34     16384,  16383,  16379,  16373,  16364,  16353,  16340,  16324,
35     16305,  16284,  16261,  16235,  16207,  16176,  16143,  16107,
36     16069,  16029,  15986,  15941,  15893,  15843,  15791,  15736,
37     15679,  15619,  15557,  15493,  15426,  15357,  15286,  15213,
38     15137,  15059,  14978,  14896,  14811,  14724,  14635,  14543,
39     14449,  14354,  14256,  14155,  14053,  13949,  13842,  13733,
40     13623,  13510,  13395,  13279,  13160,  13039,  12916,  12792,
41     12665,  12537,  12406,  12274,  12140,  12004,  11866,  11727,
42     11585,  11442,  11297,  11151,  11003,  10853,  10702,  10549,
43     10394,  10238,  10080,   9921,   9760,   9598,   9434,   9269,
44      9102,   8935,   8765,   8595,   8423,   8250,   8076,   7900,
45      7723,   7545,   7366,   7186,   7005,   6823,   6639,   6455,
46      6270,   6084,   5897,   5708,   5520,   5330,   5139,   4948,
47      4756,   4563,   4370,   4176,   3981,   3786,   3590,   3393,
48      3196,   2999,   2801,   2603,   2404,   2205,   2006,   1806,
49      1606,   1406,   1205,   1005,    804,    603,    402,    201,
50         0,   -201,   -402,   -603,   -804,  -1005,  -1205,  -1406,
51     -1606,  -1806,  -2006,  -2205,  -2404,  -2603,  -2801,  -2999,
52     -3196,  -3393,  -3590,  -3786,  -3981,  -4176,  -4370,  -4563,
53     -4756,  -4948,  -5139,  -5330,  -5520,  -5708,  -5897,  -6084,
54     -6270,  -6455,  -6639,  -6823,  -7005,  -7186,  -7366,  -7545,
55     -7723,  -7900,  -8076,  -8250,  -8423,  -8595,  -8765,  -8935,
56     -9102,  -9269,  -9434,  -9598,  -9760,  -9921, -10080, -10238,
57    -10394, -10549, -10702, -10853, -11003, -11151, -11297, -11442,
58    -11585, -11727, -11866, -12004, -12140, -12274, -12406, -12537,
59    -12665, -12792, -12916, -13039, -13160, -13279, -13395, -13510,
60    -13623, -13733, -13842, -13949, -14053, -14155, -14256, -14354,
61    -14449, -14543, -14635, -14724, -14811, -14896, -14978, -15059,
62    -15137, -15213, -15286, -15357, -15426, -15493, -15557, -15619,
63    -15679, -15736, -15791, -15843, -15893, -15941, -15986, -16029,
64    -16069, -16107, -16143, -16176, -16207, -16235, -16261, -16284,
65    -16305, -16324, -16340, -16353, -16364, -16373, -16379, -16383,
66    -16384, -16383, -16379, -16373, -16364, -16353, -16340, -16324,
67    -16305, -16284, -16261, -16235, -16207, -16176, -16143, -16107,
68    -16069, -16029, -15986, -15941, -15893, -15843, -15791, -15736,
69    -15679, -15619, -15557, -15493, -15426, -15357, -15286, -15213,
70    -15137, -15059, -14978, -14896, -14811, -14724, -14635, -14543,
71    -14449, -14354, -14256, -14155, -14053, -13949, -13842, -13733,
72    -13623, -13510, -13395, -13279, -13160, -13039, -12916, -12792,
73    -12665, -12537, -12406, -12274, -12140, -12004, -11866, -11727,
74    -11585, -11442, -11297, -11151, -11003, -10853, -10702, -10549,
75    -10394, -10238, -10080,  -9921,  -9760,  -9598,  -9434,  -9269,
76     -9102,  -8935,  -8765,  -8595,  -8423,  -8250,  -8076,  -7900,
77     -7723,  -7545,  -7366,  -7186,  -7005,  -6823,  -6639,  -6455,
78     -6270,  -6084,  -5897,  -5708,  -5520,  -5330,  -5139,  -4948,
79     -4756,  -4563,  -4370,  -4176,  -3981,  -3786,  -3590,  -3393,
80     -3196,  -2999,  -2801,  -2603,  -2404,  -2205,  -2006,  -1806,
81     -1606,  -1406,  -1205,  -1005,   -804,   -603,   -402,   -201,
82         0,    201,    402,    603,    804,   1005,   1205,   1406,
83      1606,   1806,   2006,   2205,   2404,   2603,   2801,   2999,
84      3196,   3393,   3590,   3786,   3981,   4176,   4370,   4563,
85      4756,   4948,   5139,   5330,   5520,   5708,   5897,   6084,
86      6270,   6455,   6639,   6823,   7005,   7186,   7366,   7545,
87      7723,   7900,   8076,   8250,   8423,   8595,   8765,   8935,
88      9102,   9269,   9434,   9598,   9760,   9921,  10080,  10238,
89     10394,  10549,  10702,  10853,  11003,  11151,  11297,  11442,
90     11585,  11727,  11866,  12004,  12140,  12274,  12406,  12537,
91     12665,  12792,  12916,  13039,  13160,  13279,  13395,  13510,
92     13623,  13733,  13842,  13949,  14053,  14155,  14256,  14354,
93     14449,  14543,  14635,  14724,  14811,  14896,  14978,  15059,
94     15137,  15213,  15286,  15357,  15426,  15493,  15557,  15619,
95     15679,  15736,  15791,  15843,  15893,  15941,  15986,  16029,
96     16069,  16107,  16143,  16176,  16207,  16235,  16261,  16284,
97     16305,  16324,  16340,  16353,  16364,  16373,  16379,  16383,
98     16384
99 };
100 
101 const int16_t ff_g723_1_lsp_band0[LSP_CB_SIZE][3] = {
102     {    0,      0,      0}, { -270,  -1372,  -1032}, { -541,  -1650,  -1382},
103     { -723,  -2011,  -2213}, { -941,  -1122,  -1942}, { -780,  -1145,  -2454},
104     { -884,  -1309,  -1373}, {-1051,  -1523,  -1766}, {-1083,  -1622,  -2300},
105     { -777,  -1377,  -2147}, { -935,  -1467,  -2763}, { -802,  -1327,  -3471},
106     { -935,  -1959,  -3999}, { -240,    -89,    222}, { -661,   -257,   -160},
107     { -994,   -466,   -419}, { -188,   -164,   -278}, { -342,   -512,   -415},
108     { -607,   -511,   -797}, {   16,     19,   -716}, {  374,    425,   -972},
109     { -346,    245,   -282}, { -265,    506,   -754}, { -620,   -147,   1955},
110     { -742,   -860,   2597}, { -150,   -352,   2704}, {  305,    880,   1954},
111     {  123,    731,   2766}, { -348,    765,   3327}, {  618,    221,   3258},
112     { -178,    -47,   4219}, {  393,   1304,   3842}, {  698,   1702,   4801},
113     {   63,   -584,   1229}, { -215,   -732,   1704}, {  172,   -335,   1909},
114     {   -2,    216,   1797}, {  353,    127,   2205}, {-1208,    188,     11},
115     { -513,    -75,   -683}, { -973,    222,   -646}, { -616,   -843,   -388},
116     { -950,  -1113,   -359}, {-1431,   -623,   -705}, {-1398,  -1063,   -178},
117     {  -45,   -461,     35}, {   -9,   -657,   -216}, {  127,  -1078,     95},
118     { -950,  -1156,    584}, {-1480,  -1494,    449}, { -120,   -705,    516},
119     { -368,   -961,    727}, { -378,   -526,    973}, { -793,   -614,    676},
120     { -801,   -755,   1287}, {-1476,   -340,   1636}, { -505,  -1254,   1543},
121     {-1243,  -1622,   1532}, { -776,  -1477,   -655}, {-1151,  -1296,   -823},
122     {-1153,  -1672,  -1124}, {-1291,  -2003,  -1702}, { -622,  -1283,     57},
123     { -471,  -1611,    509}, {-1060,  -1570,   -139}, { -873,  -2156,   -536},
124     {-1716,  -2021,   -364}, {-2150,  -3218,  -1291}, {-1248,  -1945,  -2904},
125     {-1215,  -2633,  -2855}, {  167,   -244,     84}, {  349,   -412,   -217},
126     {  -40,   -352,    632}, {  227,   -529,    405}, {   68,   -383,   -443},
127     {  167,   -558,   -706}, { -275,   -854,    -14}, { -351,  -1089,   -449},
128     {  341,    -72,   -289}, {  603,   -106,   -474}, {  322,   -219,   -649},
129     {  179,   -317,   -998}, {  450,   -291,   -996}, {  555,    195,   -525},
130     {  784,    272,   -831}, { -148,   -384,   -849}, {   82,   -536,  -1357},
131     {  238,   -172,  -1354}, {  422,   -268,  -1841}, {  297,   -737,  -2079},
132     { -111,   -801,   -598}, {    1,   -668,   -984}, { -131,   -818,  -1299},
133     { -329,   -521,  -1310}, { -151,   -778,  -1834}, {  -93,   -352,  -1746},
134     { -568,   -640,  -1821}, { -509,   -941,  -2183}, {  464,   -815,  -1250},
135     {   79,  -1133,  -1597}, { -184,  -1353,  -2123}, { -196,   -410,  -2427},
136     { -192,   -833,  -2810}, { -259,  -1382,  -3045}, { -217,      4,  -1166},
137     { -800,   -325,  -1219}, { -363,   -830,   -898}, { -661,  -1134,   -960},
138     { -386,   -980,  -1501}, { -627,  -1159,  -1722}, { -903,   -829,   -855},
139     { -685,   -829,  -1313}, {-1065,   -959,  -1405}, {  441,     25,   -847},
140     {  655,    -27,  -1181}, { 1159,   -110,   -705}, {  856,    253,  -1671},
141     {  415,    404,     -1}, {  322,    903,   -398}, {  670,    499,   -292},
142     {  803,    591,   -610}, { 1144,    591,   -814}, {  717,    183,    393},
143     {  857,    381,    106}, {  609,     62,    -27}, {  792,    198,   -325},
144     {  735,    805,     88}, { 1142,    812,     78}, { 1028,    366,   -292},
145     { 1309,    743,   -237}, { 1615,    589,    -79}, { 1010,    639,   -243},
146     {  999,    964,   -311}, { 1500,   1137,   -615}, {  988,    357,    646},
147     { 1227,    667,    683}, { 1164,   1565,    894}, { 1392,   2015,    477},
148     { 1138,    533,    250}, { 1437,    896,    391}, { 1765,   1118,     99},
149     { 1112,   1090,    802}, { 1596,    846,   1134}, {  937,   1161,    279},
150     { 1719,   1254,    683}, { 1338,   1086,     35}, { 1419,   1324,    428},
151     { 1428,   1524,     40}, { 2108,   1594,     89}, { 1015,    544,   1222},
152     { 1121,    925,   1263}, { 1030,   1318,   1485}, { 1295,    789,   1817},
153     { 1323,   1272,   1909}, { 1724,   1237,   1803}, { 1797,   1689,    858},
154     { 2149,   1367,   1301}, { 2302,   1867,    761}, { 2863,   2351,   1053},
155     {   52,    163,    -76}, {  230,    309,   -492}, {  -71,    619,     39},
156     { -218,    856,    499}, { -654,    736,   -207}, { -535,   1259,    155},
157     { -480,   1476,    643}, {  262,   1081,    102}, {  309,   1592,   -182},
158     {  627,   1629,    534}, {  337,    643,    456}, {  758,    670,    713},
159     {  202,   1126,    658}, {  612,   1131,    666}, {  686,   1223,   1136},
160     { -131,    377,    525}, {   42,    708,    907}, {   87,   1488,   1035},
161     {  432,   2117,    904}, {  137,    981,   1332}, { -447,   1014,   1136},
162     { -839,   1793,   1246}, { -559,    297,    198}, { -850,    685,    446},
163     {-1273,    632,    826}, { -401,   -544,    173}, { -753,   -793,    144},
164     { -436,     -9,    772}, { -115,   -243,   1310}, { -670,   -269,    374},
165     {-1027,    -13,    639}, { -887,    -81,   1137}, {-1277,   -455,    158},
166     {-1411,   -720,    736}, {  172,     88,    403}, {  386,    255,    756},
167     { -500,    522,    910}, { -958,    659,   1388}, { -395,    301,   1344},
168     { -356,    768,   1813}, { -613,    841,   2419}, {  445,   -122,    252},
169     {  629,    -87,    723}, {  283,   -253,    870}, {  456,   -116,   1381},
170     {  757,    180,   1059}, {  532,    408,   1509}, {  947,    288,   1806},
171     { 1325,    994,   2524}, {  892,   1219,   3023}, { 1397,   1596,   3406},
172     { 1143,   1552,   2546}, { 1850,   1433,   2710}, {  -10,    134,   1002},
173     {  154,    499,   1323}, {  508,    792,   1117}, {  509,   1340,   1616},
174     {  762,    862,   1608}, {  787,    740,   2320}, {  794,   1727,   1283},
175     {  465,   2108,   1660}, { -120,   1451,   1613}, { -386,   2016,   2169},
176     {  891,   1225,   2050}, {  456,   1480,   2185}, { 1493,   1283,   1209},
177     { 1397,   1636,   1518}, { 1776,   1738,   1552}, { 1572,   1698,   2141},
178     { 1389,   2126,   1271}, { 1959,   2413,   1119}, { 1365,   2892,   1505},
179     { 2206,   1971,   1623}, { 2076,   1950,   2280}, { 1717,   2291,   1867},
180     { 2366,   2515,   1953}, { 2865,   2838,   2522}, { 2535,   3465,   2011},
181     { 3381,   4127,   2638}, {  836,   2667,   2289}, { 1761,   2773,   2337},
182     { 1415,   3325,   2911}, { 2354,   3138,   3126}, { 2659,   4192,   4010},
183     { 1048,   1786,   1818}, { 1242,   2111,   2240}, { 1512,   2079,   2780},
184     { 1573,   2491,   3138}, { 2230,   2377,   2782}, {  416,   1773,   2704},
185     {  725,   2336,   3297}, { 1252,   2373,   3978}, { 2094,   2268,   3568},
186     { 2011,   2712,   4528}, { 1341,   3507,   3876}, { 1216,   3919,   4922},
187     { 1693,   4793,   6012}
188 };
189 
190 const int16_t ff_g723_1_lsp_band1[LSP_CB_SIZE][3] = {
191     {    0,      0,      0}, {-2114,  -1302,     76}, {-2652,  -1278,  -1368},
192     {-2847,   -828,   -349}, {-3812,  -2190,   -349}, {-3946,   -364,   -449},
193     {-2725,  -4492,  -3607}, {-3495,  -4764,  -1744}, {  -51,   -756,     84},
194     { -153,  -1191,    504}, {  108,  -1418,   1167}, { -835,   -896,    390},
195     { -569,  -1702,     87}, {-1151,  -1818,    933}, {-1826,  -2547,    411},
196     {-1842,  -1818,   1451}, {-2438,  -1611,    781}, {-2747,  -2477,   1311},
197     { -940,   1252,    477}, {-1629,   1688,    602}, {-1202,    617,    280},
198     {-1737,    393,    580}, {-1528,   1077,   1199}, {-2165,   -161,   1408},
199     {-2504,  -1087,   2371}, {-3458,   -175,   1395}, {-1397,    -98,   -843},
200     {-2252,   -177,  -1149}, {-1489,   -726,  -1283}, {-1558,   -265,  -1744},
201     {-1867,   -821,  -1897}, {-2062,  -1516,  -2340}, {-2595,  -1142,  -2861},
202     {  170,     46,   -819}, { -193,   -204,  -1151}, {  326,   -196,  -1532},
203     {  780,    329,   -816}, {  201,    369,  -1243}, {  650,   -209,  -1060},
204     { 1144,    -15,  -1216}, { 1203,   -259,  -1867}, { -890,   -564,  -1430},
205     { -638,   -852,  -1921}, {  177,   -739,  -1358}, { -261,   -526,  -1666},
206     {  206,   -407,  -2255}, {  338,   -526,   -822}, {  421,  -1095,  -1009},
207     {  765,   -607,  -1408}, {  825,  -1295,  -2004}, {  357,   -905,  -1815},
208     {  -58,  -1248,  -1588}, { -596,  -1436,  -2046}, {  -73,  -1159,  -2116},
209     { -115,  -1382,  -2581}, { -160,  -1723,  -1952}, {   -6,  -2196,  -2954},
210     { -649,  -1705,  -2603}, { -617,  -1453,  -3282}, { -949,  -2019,  -3102},
211     { -812,   1544,   1937}, {-1854,    574,   2000}, {-1463,   1140,   2649},
212     {-2683,   1748,   1452}, {-2486,   2241,   2523}, {  783,   1910,   1435},
213     {  581,   2682,   1376}, {  236,   2197,   1885}, { -453,   2943,   2057},
214     { -682,   2178,   2565}, {-1342,   3201,   3328}, { -288,   -184,    262},
215     {  121,   -149,   -183}, {  758,   -412,    206}, { 1038,   -204,    853},
216     { 1577,   -457,    700}, {  937,   -640,   -567}, { 1508,   -528,  -1024},
217     { -225,   -527,   -427}, { -564,  -1095,   -332}, { -742,   -353,   -186},
218     {-1288,   -459,     84}, {-1853,   -484,   -274}, {-1554,   -731,    825},
219     {-2425,   -234,    382}, {-1722,    293,   -271}, {-2515,    425,   -564},
220     {-2599,    818,    464}, { -358,    118,   -375}, { -613,    198,   -874},
221     { -690,    683,   -324}, {-1352,   1155,   -168}, {-1093,    129,   -324},
222     {-1184,    611,   -858}, {  433,    386,   -372}, { -120,    486,   -634},
223     {  234,    851,   -631}, {  602,    128,     46}, { 1099,    410,    159},
224     {  715,   -145,   -424}, { 1198,    -85,   -593}, { 1390,    367,   -358},
225     { 1683,    362,   -964}, { 1711,    622,     45}, { 2033,    833,   -383},
226     { 2890,    549,   -506}, {    7,    401,     52}, {   72,    811,    415},
227     {  566,    668,     41}, {  467,   1218,    130}, {   68,    957,   -187},
228     {  -25,   1649,   -103}, { -661,    260,    214}, { -925,    -94,    612},
229     { -321,   -422,    965}, { -788,   -672,   1783}, {  400,   -673,    779},
230     {  741,   -595,   1635}, { -161,    307,    657}, { -382,    836,    871},
231     { -814,    400,   1223}, {  364,    606,   1247}, {   57,     75,   1571},
232     {  151,    471,   2287}, {  -81,   1021,   1502}, {  227,   1470,   1097},
233     {  658,   1275,   1653}, {  664,   1478,   2377}, {  263,   -127,    444},
234     {  264,     89,    969}, {  794,    171,    576}, {  821,    186,   1226},
235     {  404,    462,    517}, {  339,    918,    794}, { 1280,   1423,    196},
236     { 1453,   2019,    365}, { 1615,   1481,    672}, { 2394,   1708,    508},
237     {  806,   1238,    573}, {  713,   1158,   1078}, { 1285,   1436,   1232},
238     { 1790,   1188,   1141}, {  765,    643,    864}, { 1032,    797,   1279},
239     {  900,    563,   1827}, { 1514,    673,   2312}, { 1544,   1129,   3240},
240     { 1469,   1050,   1594}, { 1945,   1318,   1988}, { 2397,   2026,   2060},
241     { 3538,   2057,   2620}, { 1249,   -118,     74}, { 1727,    194,    421},
242     { 2078,    -50,   -463}, {  970,    688,   -432}, { 1149,    952,   -110},
243     { 1254,   1275,   -651}, { 1386,    929,    401}, { 1960,   1167,    232},
244     {  407,   -752,   -243}, {  859,  -1118,    172}, { -227,   -860,   -992},
245     { -796,  -1175,  -1380}, {    8,  -1282,   -388}, {  353,  -1781,  -1037},
246     { -732,   -397,   -807}, { -853,    -28,  -1342}, {-1229,  -1207,  -1959},
247     {-1015,  -1125,  -2543}, {-1452,  -1791,  -2725}, {-1891,  -2416,  -3269},
248     { -918,  -1629,   -783}, { -580,  -2155,   -698}, {-1097,  -2364,    -96},
249     {-1387,  -1513,      7}, {-1588,  -2076,   -664}, {-1473,  -2740,   -784},
250     {-2378,  -3149,    -56}, {-2856,  -2092,   -169}, {-3391,  -3708,    316},
251     {-1176,   -890,   -614}, {-1944,  -1061,   -800}, { -299,  -1517,  -1000},
252     { -640,  -1850,  -1526}, {-1454,  -1536,  -1233}, {-1890,  -1955,  -1756},
253     {-1086,  -1921,  -2122}, { -750,  -2325,  -2260}, {-1325,  -2413,  -2673},
254     {-1114,  -2542,  -3459}, {-1341,  -2901,  -3963}, {-1160,  -2226,  -1393},
255     {-1001,  -2772,  -1573}, {-1594,  -2641,  -1978}, {-1534,  -3046,  -2624},
256     {-2224,  -2196,   -675}, {-2807,  -3054,  -1102}, {-2008,  -2840,  -1186},
257     {-1980,  -3332,  -1695}, {-1715,  -3562,   -505}, {-2527,  -4000,  -1887},
258     {-2333,  -2734,  -2296}, {-3440,  -2401,  -3211}, {-2008,  -3528,  -3337},
259     {-2247,  -3291,  -4510}, { -475,    949,    155}, { -149,   1365,    545},
260     { -757,   1644,   1083}, { -217,   2053,   1353}, {-1433,   2301,   1462},
261     {  495,   1661,    529}, {   10,   2037,    740}, { 2082,   1898,    978},
262     { 2831,   2294,    911}, {  842,    793,    420}, { 1223,   1023,    863},
263     { 1237,    451,    780}, { 1744,    708,    822}, { 1533,    284,   1384},
264     { 2135,    609,   1538}, { 2305,    626,    540}, { 2368,   1187,    955},
265     { 2586,   1255,     -7}, { 3116,   1131,    726}, { 3431,   1730,    428},
266     { 2734,   1648,   1307}, { 2988,   1231,   2010}, { 3523,   2024,   1488},
267     { 1034,   1657,    871}, { 1206,   2163,   1036}, { 1807,   2372,   1233},
268     { 1808,   1769,   1493}, { 1573,   2332,   1779}, { 1216,   1609,   1866},
269     { 1480,   1898,   2513}, {  465,   2708,   2776}, {  771,   3638,   3338},
270     { 1869,   2599,   2623}, { 2825,   2745,   2468}, { 2638,   2439,   1585},
271     { 2094,   2970,   1308}, { 2022,   3057,   1999}, { 3428,   2912,   1816},
272     { 4536,   2974,   2129}, { 1046,   2563,   2086}, { 1363,   3562,   2318},
273     { 2511,   1891,   2984}, { 1866,   2306,   3986}, { 3272,   2924,   3682},
274     { 3146,   3564,   2272}, { 3592,   3968,   2822}, { 2431,   3369,   3069},
275     { 1931,   4709,   3090}, { 2629,   4220,   3986}, { 4639,   4056,   3664},
276     { 4035,   5334,   4912}
277 };
278 
279 const int16_t ff_g723_1_lsp_band2[LSP_CB_SIZE][4] = {
280     {    0,      0,      0,      0}, {  601,    512,   -542,    334},
281     {  428,   1087,   -484,   -132}, {  652,    622,   -391,   -572},
282     {  378,    799,    141,   -860}, { 1040,    409,    112,   -554},
283     { 1123,    670,    -75,   -847}, { 1421,    494,   -315,  -1095},
284     {  787,   1001,    114,   -460}, {  988,   1672,    216,   -681},
285     { 1007,   1241,   -132,  -1247}, { 1073,    399,    186,     -5},
286     { 1262,    193,   -694,   -129}, {  325,    196,     51,   -641},
287     {  861,    -59,    350,   -458}, { 1261,    567,    586,   -346},
288     { 1532,    885,    210,   -517}, { 2027,    937,    113,   -792},
289     { 1383,   1064,    334,     38}, { 1964,   1468,    459,    133},
290     { 2062,   1186,    -98,   -121}, { 2577,   1445,    506,   -373},
291     { 2310,   1682,     -2,   -960}, { 2876,   1939,    765,    138},
292     { 3581,   2360,    649,   -414}, {  219,    176,   -398,   -309},
293     {  434,    -78,   -435,   -880}, { -344,    301,    265,   -552},
294     { -915,    470,    657,   -380}, {  419,   -432,   -163,   -453},
295     {  351,   -953,      8,   -562}, {  789,    -43,     20,   -958},
296     {  302,   -594,   -352,  -1159}, { 1040,    108,   -668,   -924},
297     { 1333,    210,  -1217,  -1663}, {  483,    589,   -350,  -1140},
298     { 1003,    824,   -802,  -1184}, {  745,     58,   -589,  -1443},
299     {  346,    247,   -915,  -1683}, {  270,    796,   -720,  -2043},
300     { 1208,    722,   -222,   -193}, { 1486,   1180,   -412,   -672},
301     { 1722,    179,    -69,   -521}, { 2047,    860,   -666,  -1410},
302     { -146,    222,   -281,   -805}, { -189,     90,   -114,  -1307},
303     { -152,   1086,   -241,   -764}, { -439,    733,   -601,  -1302},
304     { -833,   -167,   -351,   -601}, { -856,   -422,   -411,  -1059},
305     { -747,   -355,   -582,  -1644}, { -837,    210,   -916,  -1144},
306     {-1800,     32,   -878,  -1687}, {  -48,    -23,  -1146,     52},
307     { -350,   -409,  -1656,   -364}, {  265,   -728,   -858,   -577},
308     {  458,   -247,  -1141,   -997}, {  691,   -407,  -1988,  -1161},
309     {  -66,   -104,   -705,  -1249}, { -431,    -93,  -1191,  -1844},
310     {  203,   -732,  -1000,  -1693}, {   10,   -832,  -1846,  -1819},
311     {  493,   -128,  -1436,  -1768}, {  488,   -311,  -1730,  -2540},
312     { -653,   -532,  -1150,  -1172}, {-1086,   -289,  -1706,  -1533},
313     { -699,  -1205,  -1216,  -1766}, {-1032,  -1481,  -2074,  -1523},
314     { -721,  -1220,  -2277,  -2600}, {   12,   -539,  -1484,  -1131},
315     {  -40,   -911,  -2106,   -441}, { -471,   -484,  -2267,  -1549},
316     { -141,   -988,  -3006,  -1721}, {-1545,  -2102,   -583,    342},
317     {-1383,  -2772,   -386,    -13}, {-2118,  -2589,  -1205,     72},
318     {-2147,  -3231,   -965,    390}, {-2949,  -3300,   -621,    637},
319     {-3907,  -4138,   -865,    803}, {-1287,   -845,   -375,   -548},
320     {-1416,  -1169,   -487,  -1277}, {-1400,  -1690,  -1027,   -418},
321     {-2018,  -1909,  -1188,  -1260}, {-1418,  -2222,  -2029,   -128},
322     {-2067,  -2998,  -2693,   -310}, { -950,  -1028,  -1538,    185},
323     {-1616,   -915,  -2205,   -549}, {   19,   -821,  -1145,    352},
324     {  184,  -1175,  -1356,   -627}, { -547,  -1088,  -1661,   -911},
325     { -216,  -1502,  -2197,   -948}, { -795,  -1306,  -2374,   -451},
326     { -924,  -1889,  -2796,   -680}, { -600,  -1614,  -3609,   -885},
327     {-2392,  -2528,    319,    303}, {-2908,  -2095,   -310,    573},
328     {-3460,  -2141,     49,   -113}, {-2231,   -448,    675,   -146},
329     {-2805,   -532,   1231,    479}, {-2684,   -486,   -200,    611},
330     {-3525,   -971,   -198,    704}, {-3707,    173,    349,    254},
331     {-4734,  -1447,    -34,    880}, {  777,   -512,    114,    -10},
332     { 1250,    -66,    442,     -5}, {  604,    613,    452,   -352},
333     { 1224,    777,    675,  -1014}, {-1372,    -79,  -1208,   -238},
334     {-2389,    -17,  -1157,   -818}, {-1504,   -673,  -1133,  -1060},
335     {-1984,   -799,  -2005,  -1973}, {-2037,   -798,  -1068,   -105},
336     {-3190,   -899,  -1817,   -194}, { -156,   -886,    394,   -318},
337     { -258,  -1283,    551,    202}, { -536,  -1729,    910,    331},
338     { -847,  -1109,    795,   -163}, {-1171,  -1128,    715,    519},
339     {-1080,  -1319,   1685,    668}, {-1000,  -1921,     96,    211},
340     {-1487,  -2148,    831,    174}, {-1139,   -374,    414,     -4},
341     {-1517,  -1383,    396,   -352}, {-1012,    439,    -59,   -967},
342     {-1812,    706,   -440,  -1030}, {-1971,   -329,    -34,   -827},
343     {-2472,  -1588,   -151,   -606}, {-2161,    374,   -281,     76},
344     {-3012,    231,    -15,   -690}, { 1104,    566,    721,    209},
345     { 1685,    564,    383,     98}, { 1898,    750,    792,    -97},
346     {  556,    -64,    561,    -93}, {  876,    162,    913,    -22},
347     {  961,    675,   1296,    140}, {  756,   -396,    851,    544},
348     {  360,   -303,   1341,    396}, {  878,    -22,   1464,    863},
349     { -309,   -273,    642,   -129}, { -686,    -82,    842,    454},
350     {   -5,    -47,   1069,    998}, {  -94,    967,   1277,    298},
351     { -489,    385,   1473,    746}, { -369,   -717,   1333,    242},
352     {  281,   -993,   1726,    924}, {  464,    601,   1575,   1376},
353     { -250,    206,   2339,   1175}, { -438,    377,   -597,   -285},
354     {-1020,    787,   -790,   -287}, { -458,   -410,    215,    295},
355     { -589,   -860,   -121,    797}, {-1175,    122,   -437,    466},
356     {-1480,   -121,    367,    924}, {  234,    323,    770,   -555},
357     {  145,     30,    996,     26}, {   66,    849,     93,   -145},
358     { -117,   1261,    474,   -399}, {-1495,   1051,    218,   -506},
359     {-1390,    694,    994,     88}, {  616,      7,     78,    304},
360     { 1060,     52,    -62,    835}, {  833,    454,    649,   1359},
361     { -770,    464,     47,     93}, { -574,   1199,    -39,    379},
362     {  114,    -98,    488,    485}, {  727,    244,    606,    696},
363     {  -76,    455,    671,    546}, { -565,    -13,    145,    819},
364     { -376,    569,    448,   1128}, {  218,    122,    265,   1167},
365     {  230,    738,    932,   1003}, {  138,    477,     36,    450},
366     {  404,    787,    -73,   1000}, {  497,   1259,    387,   1231},
367     {   17,    207,    195,    -79}, {  562,    358,     53,   -158},
368     {  493,    387,    478,    189}, {  678,    831,    640,    558},
369     { -197,    523,    613,     57}, {  429,    894,    769,    111},
370     {   67,   1174,    568,    511}, { 1242,    824,    251,    840},
371     { 1419,   1074,    864,    481}, {  924,   1474,    669,    724},
372     { 1539,   1879,    654,   1590}, {  445,    337,   1111,    541},
373     {  472,   1421,   1264,   1094}, {  794,    735,   1103,    668},
374     { 1055,    863,   1192,   1020}, {  778,   1105,    806,   1798},
375     { 1052,   1527,   1587,   2151}, {  881,   1552,   1265,    391},
376     {  726,    872,   1812,    601}, { 1469,    280,   1008,    616},
377     { 1403,    577,   1803,   1244}, { 1650,   1314,   1148,   1072},
378     { 1297,   1669,   1911,   1026}, { 2093,   1044,   2115,   1189},
379     { 1644,   1961,   2587,   1512}, {   25,   -315,     -9,   -106},
380     {  290,   -339,    428,   -444}, {  -68,   -783,    735,    772},
381     {  245,   -555,    468,     47}, {  334,   -895,    814,    146},
382     {  235,    368,   -964,   -959}, { -203,    315,  -1566,  -1217},
383     {  801,     17,   -276,   -354}, {  894,   -495,   -789,   -635},
384     {  716,    291,  -1189,   -357}, {  560,   -260,   -733,     -2},
385     {  679,   -508,  -1429,    211}, {  -51,    -62,   -428,    557},
386     {  322,   -638,   -211,    614}, { -878,  -1057,    -84,    -71},
387     { -388,  -1415,   -167,   -318}, { -754,  -1574,    214,   -539},
388     {-1419,  -2004,    -92,   -787}, {  -47,   -856,   -347,   -255},
389     {   23,  -1211,   -173,    320}, { -658,   -487,   -893,    353},
390     { -783,  -1587,   -584,    507}, {-1420,   -859,   -378,    441},
391     {-2095,  -1491,   -137,    439}, { -321,  -1450,  -1288,    -12},
392     { -359,  -2113,   -553,     -8}, { -831,  -1918,  -1561,     32},
393     {-1014,  -2487,  -1359,   -939}, { -475,   -311,   -169,   -236},
394     { -907,   -426,    276,   -611}, {  -96,   -400,     50,   -710},
395     { -426,  -1022,    -10,   -985}, { -197,   -258,   -744,   -575},
396     { -611,   -930,   -771,   -394}, { -267,   -776,   -612,   -939},
397     { -256,  -1346,   -802,  -1122}, { -796,  -1570,   -825,   -754},
398     {  712,    876,    141,    227}, {  981,   1509,     85,    124},
399     { 1462,   1228,    979,    -39}, { 1734,    999,   1481,    440},
400     { 2293,   1116,    769,    440}, { 2504,   1480,   1241,    356},
401     { 2474,   1909,   1558,    810}, {  917,   1134,    607,   -134},
402     {  509,   1809,    781,   -123}, { 1712,   1506,    559,   -423},
403     { 2037,   2317,    726,   -155}, { 3031,   2676,   1203,    331},
404     { 3664,   3274,   1768,    531}, { 1610,   1839,    867,    183},
405     { 1774,   1972,   1538,     97}, { 1822,   2158,   1282,    659},
406     { 2222,   2758,   1818,    900}, { 3251,   2124,   1723,    996},
407     { 3633,   2336,   2408,   1453}, { 2923,   3517,   2567,   1318},
408 };
409 
410 const int32_t ff_g723_1_combinatorial_table[PULSE_MAX][SUBFRAME_LEN/GRID_SIZE] = {
411     {118755, 98280, 80730,  65780, 53130,
412       42504, 33649, 26334,  20349, 15504,
413       11628,  8568,  6188,   4368,  3003,
414        2002,  1287,   792,    462,   252,
415         126,    56,    21,      6,     1,
416           0,     0,     0,      0,     0},
417 
418     { 23751, 20475, 17550,  14950, 12650,
419       10626,  8855,  7315,   5985,  4845,
420        3876,  3060,  2380,   1820,  1365,
421        1001,   715,   495,    330,   210,
422         126,    70,    35,     15,     5,
423           1,     0,     0,      0,     0},
424 
425     {  3654,  3276,  2925,   2600,  2300,
426        2024,  1771,  1540,   1330,  1140,
427         969,   816,   680,    560,   455,
428         364,   286,   220,    165,   120,
429          84,    56,    35,     20,    10,
430           4,     1,     0,      0,     0},
431 
432     {   406,   378,   351,    325,   300,
433         276,   253,   231,    210,   190,
434         171,   153,   136,    120,   105,
435          91,    78,    66,     55,    45,
436          36,    28,    21,     15,    10,
437           6,     3,     1,      0,     0},
438 
439     {    29,    28,    27,     26,    25,
440          24,    23,    22,     21,    20,
441          19,    18,    17,     16,    15,
442          14,    13,    12,     11,    10,
443           9,     8,     7,      6,     5,
444           4,     3,     2,      1,     0},
445 
446     {     1,     1,     1,      1,     1,
447           1,     1,     1,      1,     1,
448           1,     1,     1,      1,     1,
449           1,     1,     1,      1,     1,
450           1,     1,     1,      1,     1,
451           1,     1,     1,      1,     1},
452 };
453 
454 const int16_t ff_g723_1_fixed_cb_gain[GAIN_LEVELS] = {
455       1,    2,    3,    4,    6,    9,   13,   18,
456      26,   38,   55,   80,  115,  166,  240,  348,
457     502,  726, 1050, 1517, 2193, 3170, 4582, 6623,
458 };
459 
460 const int16_t ff_g723_1_adaptive_cb_gain85[85 * 20] = {
461         0,      0,      0,      0,      0,      0,      0,      0,
462         0,      0,      0,      0,      0,      0,      0,      0,
463         0,      0,      0,      0,    800,   1496,    167,   -256,
464      -338,    -39,   -136,     -1,     -4,     -6,    -73,     -8,
465       -15,     12,     23,      2,     16,     30,      3,     -5,
466      -462,   -686,    493,   2575,    311,    -13,    -28,    -14,
467      -404,     -5,    -19,     13,     20,     72,    107,    -77,
468         8,     13,     -9,    -48,   1483,    144,    784,    928,
469      1243,   -134,     -1,    -37,    -52,    -94,    -13,    -71,
470        -6,    -84,     -8,    -44,   -112,    -10,    -59,    -70,
471       -77,    275,   3522,   1056,  -1254,      0,     -4,   -757,
472       -68,    -95,      1,     16,    -59,      4,    -17,   -227,
473        -5,     21,    269,     80,   -125,    -40,   -264,    381,
474      5027,      0,      0,     -4,     -8,  -1542,      0,     -2,
475         0,      2,      0,      6,     38,     12,     81,   -117,
476       138,    332,   2215,   2574,   1339,     -1,     -6,   -299,
477      -404,   -109,     -2,    -18,    -44,    -21,    -52,   -348,
478       -11,    -27,   -181,   -210,   3685,   2883,   -887,    866,
479     -1639,   -828,   -507,    -48,    -45,   -164,   -648,    199,
480       156,   -194,   -152,     46,    368,    288,    -88,     86,
481      1396,   2146,   2235,    345,    942,   -118,   -281,   -305,
482        -7,    -54,   -182,   -190,   -292,    -29,    -45,    -47,
483       -80,   -123,   -128,    -19,     13,   4475,   3549,   -804,
484      -655,      0,  -1222,   -768,    -39,    -26,     -3,     -2,
485      -969,      0,    219,    174,      0,    179,    141,    -32,
486      -724,    254,    242,   6049,   2462,    -32,     -3,     -3,
487     -2233,   -370,     11,     10,     -3,    267,    -94,    -89,
488       108,    -38,    -36,   -909,    626,  -1713,   6121,   4561,
489     -1061,    -23,   -179,  -2287,  -1270,    -68,     65,   -233,
490       640,   -174,    477,  -1704,     40,   -111,    396,    295,
491      -350,   1391,   7985,    511,   -405,     -7,   -118,  -3892,
492       -15,    -10,     29,    170,   -678,     10,    -43,   -249,
493        -8,     34,    197,     12,   3144,   -529,    608,   2530,
494      3878,   -603,    -17,    -22,   -390,   -918,    101,   -116,
495        19,   -485,     81,    -93,   -744,    125,   -144,   -599,
496      2589,   -689,   3045,   5603,   -404,   -409,    -29,   -566,
497     -1916,    -10,    108,   -481,    128,   -885,    235,  -1041,
498        63,    -17,     75,    138,   3107,    513,   1374,  -3594,
499     -4922,   -589,    -16,   -115,   -788,  -1478,    -97,   -260,
500       -43,    681,    112,    301,    933,    154,    413,  -1079,
501      2468,   6010,   1107,   -390,   1961,   -372,  -2204,    -74,
502        -9,   -234,   -905,   -166,   -406,     58,    143,     26,
503      -295,   -719,   -132,     46,   4773,   2766,   2368,   4862,
504     -4044,  -1390,   -467,   -342,  -1443,   -998,   -806,   -690,
505      -399,  -1416,   -821,   -702,   1178,    682,    584,   1200,
506      1665,  -1879,   1443,   1701,   8562,   -169,   -215,   -127,
507      -176,  -4475,    190,   -146,    165,   -172,    195,   -149,
508      -870,    982,   -754,   -889,   2716,   9011,  -1007,    755,
509     -1785,   -450,  -4956,    -61,    -34,   -194,  -1493,    167,
510       554,   -125,   -415,     46,    296,    982,   -109,     82,
511     -2727,   7548,   1285,    938,   3420,   -453,  -3478,   -100,
512       -53,   -714,   1256,    213,   -592,    156,   -432,    -73,
513       569,  -1576,   -268,   -196,   3677,    882,   4050,   1202,
514      2323,   -825,    -47,  -1001,    -88,   -329,   -198,   -909,
515      -218,   -269,    -64,   -297,   -521,   -125,   -574,   -170,
516      2046,   -753,    122,  10102,    603,   -255,    -34,      0,
517     -6229,    -22,     94,    -15,      5,  -1261,    464,    -75,
518       -75,     27,     -4,   -372,    449,  -1815,  10690,   3870,
519      -527,    -12,   -201,  -6976,   -914,    -16,     49,   -293,
520      1184,   -106,    428,  -2525,     14,    -58,    344,    124,
521      -941,   2352,   5049,   3650,   2637,    -54,   -337,  -1556,
522      -813,   -424,    135,    290,   -725,    209,   -524,  -1125,
523       151,   -378,   -812,   -587,  -1879,    796,   3117,   9569,
524      -404,   -215,    -38,   -593,  -5589,     -9,     91,    357,
525      -151,   1097,   -464,  -1821,    -46,     19,     76,    236,
526     -1715,   2043,  -2096,   9946,   4001,   -179,   -254,   -268,
527     -6038,   -977,    213,   -219,    261,   1041,  -1240,   1272,
528       418,   -498,    511,  -2429,  -5772,   -618,  -3921,    284,
529     -3155,  -2033,    -23,   -938,     -4,   -607,   -218,  -1381,
530      -148,    100,     10,     68,  -1111,   -119,   -755,     54,
531       382,   4748,   8003,  -2064,   2198,     -8,  -1376,  -3909,
532      -260,   -294,   -110,   -186,  -2319,     48,    598,   1008,
533       -51,   -637,  -1073,    277,   -867,   3015,  11926,  -1675,
534       947,    -45,   -555,  -8681,   -171,    -54,    159,    631,
535     -2195,    -88,    308,   1219,     50,   -174,   -690,     96,
536     -4933,   -432,   6757,   3771,   1352,  -1485,    -11,  -2786,
537      -867,   -111,   -130,   2034,    178,   1135,     99,  -1555,
538       407,     35,   -557,   -311,    152,   9726,   4231,  -1928,
539      1490,     -1,  -5774,  -1092,   -226,   -135,    -90,    -39,
540     -2511,     17,   1144,    498,    -13,   -884,   -384,    175,
541      2512,    193,   9033,   5361,  -3148,   -385,     -2,  -4980,
542     -1754,   -605,    -29,  -1385,   -106,   -822,    -63,  -2956,
543       482,     37,   1735,   1030,   8464,   2844,     12,    549,
544      2132,  -4373,   -493,      0,    -18,   -277,  -1469,     -6,
545        -2,   -284,    -95,      0,  -1101,   -370,     -1,    -71,
546      2141,  -2602,   7166,   9046,  -1350,   -279,   -413,  -3134,
547     -4994,   -111,    340,   -936,   1138,  -1182,   1436,  -3957,
548       176,   -214,    590,    745,   -244,    278,  13307,   1227,
549      -161,     -3,     -4, -10808,    -91,     -1,      4,    198,
550      -226,     18,    -20,   -997,     -2,      2,    131,     12,
551     -1947,   8217,   6269,    917,  -2559,   -231,  -4121,  -2399,
552       -51,   -399,    976,    745,  -3144,    108,   -460,   -350,
553      -304,   1283,    979,    143,  -1810,   2061,  -2781,   6056,
554     10058,   -200,   -259,   -472,  -2238,  -6174,    227,   -307,
555       349,    669,   -761,   1028,   1111,  -1265,   1707,  -3717,
556      7827,   9161,  -3409,   2473,  -1510,  -3739,  -5122,   -709,
557      -373,   -139,  -4376,   1628,   1906,  -1181,  -1382,    514,
558       721,    844,   -314,    228,  -1430,   8313,   9541,  -2955,
559      1626,   -124,  -4218,  -5556,   -533,   -161,    725,    832,
560     -4841,   -257,   1499,   1721,    142,   -825,   -947,    293,
561      2819,  -4247,   5391,   8673,   2756,   -485,  -1101,  -1774,
562     -4591,   -463,    730,   -927,   1397,  -1492,   2248,  -2854,
563      -474,    714,   -907,  -1459,    141,  14552,    690,    257,
564      -112,     -1, -12926,    -29,     -4,      0,   -125,     -5,
565      -613,     -2,   -228,    -10,      0,     99,      4,      1,
566     11938,  -1859,   1806,   -962,   -884,  -8699,   -211,   -199,
567       -56,    -47,   1355,  -1316,    205,    701,   -109,    106,
568       644,   -100,     97,    -51,   3728,   1982,   2264,   4584,
569      3131,   -848,   -239,   -312,  -1282,   -598,   -451,   -515,
570      -273,  -1043,   -554,   -633,   -712,   -378,   -432,   -876,
571     -1181,    766,    720,  14303,   -216,    -85,    -35,    -31,
572    -12486,     -2,     55,     51,    -33,   1031,   -668,   -628,
573       -15,     10,      9,    189,  -4385,   4826,  10112,   1569,
574      3388,  -1173,  -1421,  -6242,   -150,   -700,   1291,   2706,
575     -2979,    420,   -462,   -969,    906,   -998,  -2091,   -324,
576      -448,   1932,  15591,  -1842,    657,    -12,   -227, -14837,
577      -207,    -26,     52,    427,  -1838,    -50,    217,   1753,
578        18,    -77,   -626,     74,  -4141,   1844,   3962,   5517,
579      6220,  -1046,   -207,   -958,  -1858,  -2361,    466,   1001,
580      -446,   1394,   -621,  -1334,   1572,   -700,  -1504,  -2094,
581       729,  -2299,  14755,   3657,   -952,    -32,   -322, -13288,
582      -816,    -55,    102,   -656,   2071,   -162,    513,  -3294,
583        42,   -133,    857,    212,  -1385,   5801,  13339,  -3137,
584      1344,   -117,  -2054, -10861,   -600,   -110,    490,   1127,
585     -4723,   -265,   1111,   2554,    113,   -476,  -1094,    257,
586      4710,   9661,   1073,  -2467,   3274,  -1354,  -5697,    -70,
587      -371,   -654,  -2777,   -308,   -633,    709,   1455,    161,
588      -941,  -1930,   -214,    493,   1843,  -3624,  12422,   6898,
589     -1559,   -207,   -802,  -9419,  -2904,   -148,    407,  -1397,
590      2748,   -775,   1526,  -5230,    175,   -344,   1182,    656,
591      1433,   2394,   2507,   1380,   8780,   -125,   -349,   -383,
592      -116,  -4705,   -209,   -219,   -366,   -120,   -201,   -211,
593      -768,  -1283,  -1343,   -740,  -1712,  12915,   5883,  -2197,
594       991,   -179, -10181,  -2112,   -294,    -60,   1350,    615,
595     -4638,   -229,   1732,    789,    103,   -781,   -356,    133,
596     15072,   2158,  -1245,    910,   -496, -13865,   -284,    -94,
597       -50,    -15,  -1986,   1145,    164,   -837,   -119,     69,
598       456,     65,    -37,     27,   4655,   7319,   4916,    586,
599     -3381,  -1322,  -3270,  -1475,    -20,   -697,  -2079,  -1396,
600     -2196,   -166,   -261,   -175,    960,   1510,   1014,    120,
601      1191,  -2140,   5120,  13498,  -1418,    -86,   -279,  -1600,
602    -11121,   -122,    155,   -372,    669,   -981,   1763,  -4218,
603       103,   -185,    443,   1168,  -1530,   -817,   8191,   9632,
604     -1452,   -143,    -40,  -4095,  -5663,   -128,    -76,    765,
605       408,    900,    480,  -4815,   -135,    -72,    726,    854,
606     -3236,    607,   1696,  -2106,  11485,   -639,    -22,   -175,
607      -270,  -8051,    119,    335,    -62,   -416,     78,    218,
608      2268,   -425,  -1189,   1476,   3203,  -1903,   -837,   9679,
609      7057,   -626,   -221,    -42,  -5718,  -3039,    372,    163,
610       -97,  -1892,   1124,    494,  -1380,    819,    360,  -4169,
611       213,   -655,  17015,    620,   -384,     -2,    -26, -17671,
612       -23,     -9,      8,   -221,    681,     -8,     24,   -644,
613         5,    -15,    399,     14,   5088,     35,  -3339,   3726,
614      8488,  -1580,      0,   -680,   -847,  -4397,    -10,   1037,
615         7,  -1157,     -8,    759,  -2636,    -18,   1730,  -1930,
616      -988,   1454,  -2688,  15039,   2682,    -59,   -129,   -441,
617    -13805,   -439,     87,   -162,    238,    907,  -1335,   2467,
618       161,   -238,    440,  -2462,  -4865,  -2842,    -53,   5495,
619      6523,  -1445,   -493,      0,  -1843,  -2597,   -844,    -16,
620        -9,   1632,    953,     18,   1937,   1131,     21,  -2188,
621      3076,  15069,  -2914,   1810,   -971,   -577, -13860,   -518,
622      -200,    -57,  -2829,    547,   2680,   -339,  -1665,    322,
623       182,    893,   -172,    107,   1311,   5355,  11054,   2299,
624     -3654,   -105,  -1750,  -7458,   -322,   -814,   -428,   -885,
625     -3613,   -184,   -751,  -1551,    292,   1194,   2465,    512,
626      4035,   5619,   4618,   1815,   1912,   -994,  -1927,  -1301,
627      -201,   -223,  -1384,  -1137,  -1583,   -447,   -622,   -511,
628      -471,   -656,   -539,   -211,  -2131,   2754,  -4501,  12879,
629      7432,   -277,   -463,  -1236, -10124,  -3371,    358,   -585,
630       756,   1675,  -2165,   3538,    967,  -1249,   2042,  -5842,
631      5618,   -515,   3219,  -4149,   4857,  -1926,    -16,   -632,
632     -1050,  -1440,    176,  -1104,    101,   1422,   -130,    815,
633     -1666,    152,   -954,   1230,   1838,  -1709,   1139,  16867,
634       716,   -206,   -178,    -79, -17366,    -31,    191,   -127,
635       118,  -1892,   1759,  -1173,    -80,     74,    -49,   -737,
636      1978,  -3845,  10050,  11854,  -2492,   -238,   -902,  -6164,
637     -8576,   -379,    464,  -1213,   2358,  -1431,   2782,  -7271,
638       301,   -585,   1529,   1803,  -2600,  11246,  11289,  -3647,
639      1463,   -412,  -7720,  -7778,   -812,   -130,   1784,   1791,
640     -7749,   -578,   2504,   2513,    232,  -1004,  -1008,    325,
641      3442,    907,   2725,   8970,   3638,   -723,    -50,   -453,
642     -4911,   -808,   -190,   -572,   -150,  -1884,   -496,  -1492,
643      -764,   -201,   -605,  -1992,   -126,  17498,   3481,  -2003,
644      1090,      0, -18689,   -739,   -244,    -72,    135,     26,
645     -3717,    -15,   2139,    425,      8,  -1165,   -231,    133,
646     -1814,   1048,  -2164,   4070,  16272,   -200,    -67,   -285,
647     -1011, -16160,    116,   -239,    138,    450,   -260,    537,
648      1801,  -1041,   2149,  -4042,   9354,  12580,  -1883,    962,
649      -617,  -5341,  -9660,   -216,    -56,    -23,  -7183,   1075,
650      1446,   -549,   -738,    110,    352,    474,    -71,     36,
651      1708,   4199,   7387,   6335,   1003,   -178,  -1076,  -3330,
652     -2449,    -61,   -437,   -770,  -1893,   -660,  -1623,  -2856,
653      -104,   -257,   -452,   -388,  -2624,   5623,  17310,  -2353,
654       592,   -420,  -1930, -18288,   -338,    -21,    900,   2772,
655     -5941,   -376,    807,   2486,     94,   -203,   -625,     85,
656      1211,   -850,   1193,  -1926,  15992,    -89,    -44,    -86,
657      -226, -15609,     62,    -88,     61,    142,   -100,    140,
658     -1182,    830,  -1165,   1880,   3983,  -2054,  11506,    -19,
659      3622,   -968,   -257,  -8080,      0,   -801,    499,  -2797,
660      1442,      4,     -2,     13,   -880,    454,  -2544,      4,
661      -786,  -1354,  16092,   7246,  -1665,    -37,   -111, -15805,
662     -3205,   -169,    -65,    772,   1330,    348,    599,  -7117,
663       -80,   -137,   1636,    736,  -4316,   -511,   6674,  11665,
664      4633,  -1137,    -15,  -2719,  -8305,  -1310,   -134,   1758,
665       208,   3073,    364,  -4752,   1220,    144,  -1887,  -3299,
666      7912,   4557,   1937,   1885,   7037,  -3821,  -1267,   -229,
667      -216,  -3022,  -2200,   -935,   -538,   -910,   -524,   -222,
668     -3398,  -1957,   -832,   -809,   3434,   2967,   5867,   8196,
669      8766,   -720,   -537,  -2101,  -4100,  -4690,   -622,  -1230,
670     -1062,  -1718,  -1484,  -2935,  -1837,  -1588,  -3139,  -4385,
671      5881,   9176,   8119,   3934,   3355,  -2111,  -5139,  -4023,
672      -944,   -687,  -3294,  -2914,  -4547,  -1412,  -2203,  -1949,
673     -1204,  -1879,  -1662,   -805
674 };
675 
676 const int16_t ff_g723_1_adaptive_cb_gain170[170 * 20] = {
677         0,      0,      0,      0,      0,      0,      0,      0,
678         0,      0,      0,      0,      0,      0,      0,      0,
679         0,      0,      0,      0,    776,    212,    715,    670,
680       809,    -36,     -2,    -31,    -27,    -39,    -10,    -33,
681        -9,    -31,     -8,    -29,    -38,    -10,    -35,    -33,
682      1296,   1316,   -168,   -320,   -815,   -102,   -105,     -1,
683        -6,    -40,   -104,     13,     13,     25,     25,     -3,
684        64,     65,     -8,    -15,   -589,    680,   2478,    308,
685      -596,    -21,    -28,   -375,     -5,    -21,     24,     89,
686      -102,     11,    -12,    -46,    -21,     24,     90,     11,
687      -735,   -487,     -5,   2948,    468,    -33,    -14,      0,
688      -530,    -13,    -21,      0,      0,    132,     87,      0,
689        21,     13,      0,    -84,   1042,   1730,   1068,    333,
690       626,    -66,   -182,    -69,     -6,    -23,   -110,    -67,
691      -112,    -21,    -35,    -21,    -39,    -66,    -40,    -12,
692       486,   -769,   4074,   2825,  -1107,    -14,    -36,  -1013,
693      -487,    -74,     22,   -120,    191,    -83,    132,   -702,
694        32,    -52,    275,    191,   1521,   -767,   -124,   4320,
695      1026,   -141,    -35,      0,  -1139,    -64,     71,     11,
696        -5,   -401,    202,     32,    -95,     48,      7,   -270,
697      2425,   1267,   3439,    -91,  -1166,   -359,    -98,   -722,
698         0,    -83,   -187,   -509,   -266,     13,      7,     19,
699       172,     90,    244,     -6,  -1251,    975,    173,   4039,
700      2005,    -95,    -58,     -1,   -996,   -245,     74,     13,
701       -10,    308,   -240,    -42,    153,   -119,    -21,   -494,
702      1820,    632,   1322,   2062,   1031,   -202,    -24,   -106,
703      -259,    -64,    -70,   -146,    -51,   -229,    -79,   -166,
704      -114,    -39,    -83,   -129,   -447,   4904,    244,   -315,
705     -2038,    -12,  -1467,     -3,     -6,   -253,    134,      6,
706       -73,     -8,     94,      4,    -55,    610,     30,    -39,
707      -208,  -1102,    463,   -448,   5653,     -2,    -74,    -13,
708       -12,  -1950,    -14,      5,     31,     -5,    -30,     12,
709        71,    380,   -159,    154,   4739,   2600,  -1864,    856,
710     -1554,  -1371,   -412,   -212,    -44,   -147,   -752,    539,
711       295,   -247,   -135,     97,    449,    246,   -176,     81,
712      1894,   3533,     35,    -26,   2145,   -219,   -762,      0,
713         0,   -280,   -408,     -4,     -7,      3,      5,      0,
714      -248,   -462,     -4,      3,  -2699,   1841,   4072,   2443,
715      1582,   -444,   -207,  -1012,   -364,   -152,    303,    670,
716      -457,    402,   -274,   -607,    260,   -177,   -393,   -236,
717      -844,   3358,   6106,  -1059,   -537,    -43,   -688,  -2275,
718       -68,    -17,    173,    314,  -1251,    -54,    217,    395,
719       -27,    110,    200,    -34,   1251,   1016,   3020,   2210,
720      1445,    -95,    -63,   -556,   -298,   -127,    -77,   -230,
721      -187,   -168,   -137,   -407,   -110,    -89,   -266,   -194,
722      2099,   2277,   4038,   3533,  -2870,   -269,   -316,   -995,
723      -762,   -503,   -291,   -517,   -561,   -452,   -491,   -871,
724       367,    399,    707,    619,    400,  -1114,   8516,   2422,
725     -1117,     -9,    -75,  -4426,   -358,    -76,     27,   -208,
726       579,    -59,    164,  -1259,     27,    -75,    580,    165,
727     -4398,  -2011,   3912,  -2407,   2258,  -1180,   -247,   -934,
728      -353,   -311,   -540,   1050,    480,   -646,   -295,    575,
729       606,    277,   -539,    331,   1767,  -1447,   4240,   6160,
730      -757,   -190,   -127,  -1097,  -2316,    -35,    156,   -457,
731       374,   -664,    544,  -1594,     81,    -66,    195,    284,
732      1594,  -1463,   1035,   6938,   1920,   -155,   -130,    -65,
733     -2938,   -225,    142,   -100,     92,   -675,    619,   -438,
734      -186,    171,   -121,   -813,   -562,   4716,   4085,   -591,
735      2421,    -19,  -1357,  -1018,    -21,   -357,    162,    140,
736     -1175,    -20,    170,    147,     83,   -696,   -603,     87,
737      1552,   8778,   -935,    354,  -1424,   -147,  -4703,    -53,
738        -7,   -123,   -831,     88,    501,    -33,   -189,     20,
739       134,    763,    -81,     30,   4831,  -4431,     41,  -1479,
740     -2976,  -1424,  -1198,      0,   -133,   -540,   1306,    -12,
741        11,    436,   -400,      3,    877,   -804,      7,   -268,
742      2090,   1192,   1006,   1645,   4853,   -266,    -86,    -61,
743      -165,  -1437,   -152,   -128,    -73,   -210,   -119,   -101,
744      -619,   -353,   -298,   -487,   2386,   5712,   1426,    -94,
745      1350,   -347,  -1991,   -124,      0,   -111,   -832,   -207,
746      -497,     13,     32,      8,   -196,   -470,   -117,      7,
747     -1349,   1091,   1659,   8891,    313,   -111,    -72,   -168,
748     -4825,     -5,     89,    136,   -110,    732,   -592,   -900,
749        25,    -20,    -31,   -170,   9980,    916,   -381,   -808,
750        88,  -6080,    -51,     -8,    -39,      0,   -558,    232,
751        21,    492,     45,    -18,    -53,     -4,      2,      4,
752      2338,  -1031,   -248,   3928,   6484,   -333,    -64,     -3,
753      -942,  -2566,    147,     35,    -15,   -560,    247,     59,
754      -925,    408,     98,  -1555,   6166,  -1240,   -337,   3672,
755     -1277,  -2320,    -93,     -6,   -823,    -99,    466,    126,
756       -25,  -1382,    278,     75,    480,    -96,    -26,    286,
757      4377,   -132,  -2588,   1701,   4865,  -1169,     -1,   -409,
758      -176,  -1444,     35,    691,    -20,   -454,     13,    268,
759     -1299,     39,    768,   -505,   2594,   3295,   3944,   1481,
760       682,   -410,   -662,   -949,   -133,    -28,   -521,   -624,
761      -793,   -234,   -297,   -356,   -108,   -137,   -164,    -61,
762      4151,    624,    815,   4485,   2229,  -1052,    -23,    -40,
763     -1228,   -303,   -158,   -206,    -31,  -1136,   -170,   -223,
764      -565,    -84,   -111,   -610,  -3575,   -361,   4924,   2791,
765      4698,   -780,     -7,  -1480,   -475,  -1347,    -78,   1074,
766       108,    609,     61,   -839,   1025,    103,  -1412,   -800,
767     -2518,   3791,   8623,    315,   2465,   -387,   -877,  -4538,
768        -6,   -370,    582,   1325,  -1995,     48,    -73,   -166,
769       378,   -570,  -1297,    -47,   -691,   2989,   9957,   -421,
770     -1142,    -29,   -545,  -6051,    -10,    -79,    126,    420,
771     -1817,    -17,     76,    256,    -48,    208,    694,    -29,
772     -1918,    104,  -3190,  -3410,  -4440,   -224,      0,   -621,
773      -709,  -1203,     12,   -373,     20,   -399,     21,   -664,
774      -519,     28,   -864,   -924,  -3359,  -1668,   1854,   6939,
775      1430,   -688,   -169,   -209,  -2939,   -124,   -341,    380,
776       188,   1422,    706,   -785,    293,    145,   -161,   -606,
777        42,   9706,   3164,   -952,    907,      0,  -5750,   -611,
778       -55,    -50,    -25,     -8,  -1874,      2,    564,    183,
779        -2,   -537,   -175,     52,   1607,    785,   2862,   4327,
780      3307,   -157,    -37,   -500,  -1143,   -667,    -77,   -280,
781      -137,   -424,   -207,   -756,   -324,   -158,   -577,   -873,
782      6801,   3416,   2227,   1682,  -3217,  -2823,   -712,   -302,
783      -172,   -631,  -1418,   -924,   -464,   -698,   -350,   -228,
784      1335,    670,    437,    330,   3459,   3898,    364,   7841,
785     -2640,   -730,   -927,     -8,  -3753,   -425,   -823,    -76,
786       -86,  -1655,  -1865,   -174,    557,    628,     58,   1263,
787     -5902,  -3458,  -2465,  -1886,   4334,  -2126,   -730,   -371,
788      -217,  -1146,  -1245,   -888,   -520,   -679,   -398,   -283,
789      1561,    915,    652,    499,  -3710,   1133,   7849,   3443,
790      -215,   -840,    -78,  -3760,   -723,     -2,    256,   1777,
791      -543,    779,   -238,  -1649,    -48,     14,    103,     45,
792      4132,   2828,      2,  -4212,  -4116,  -1042,   -488,      0,
793     -1083,  -1034,   -713,      0,      0,   1062,    727,      0,
794      1038,    710,      0,  -1058,   5875,   8496,  -1796,   1376,
795     -1786,  -2107,  -4406,   -197,   -115,   -194,  -3047,    644,
796       931,   -493,   -713,    150,    640,    926,   -195,    150,
797      3143,   3483,   3546,   -793,   4489,   -603,   -740,   -767,
798       -38,  -1230,   -668,   -680,   -754,    152,    168,    171,
799      -861,   -954,   -971,    217,   2845,   7965,   3695,  -5432,
800      3978,   -494,  -3873,   -833,  -1801,   -966,  -1383,   -641,
801     -1796,    943,   2641,   1225,   -691,  -1934,   -897,   1319,
802      1538,    150,   7139,   2049,   3097,   -144,     -1,  -3110,
803      -256,   -585,    -14,   -670,    -65,   -192,    -18,   -892,
804      -290,    -28,  -1349,   -387,    618,   7520,   4729,   -238,
805     -3373,    -23,  -3452,  -1365,     -3,   -694,   -283,   -178,
806     -2170,      8,    109,     68,    127,   1548,    973,    -49,
807      2965,  -3013,   7912,   7076,  -1997,   -536,   -554,  -3821,
808     -3056,   -243,    545,  -1431,   1455,  -1280,   1301,  -3417,
809       361,   -367,    964,    862,   2443,   -929,  -1113,   9677,
810      4138,   -364,    -52,    -75,  -5716,  -1045,    138,    166,
811       -63,  -1443,    549,    657,   -617,    234,    281,  -2444,
812      1966,   3309,  10085,  -3399,   2105,   -236,   -668,  -6207,
813      -705,   -270,   -397,  -1210,  -2037,    408,    686,   2092,
814      -252,   -425,  -1295,    436,   -112,  -1368,   8868,   4822,
815      2048,      0,   -114,  -4800,  -1419,   -256,     -9,     61,
816       740,     33,    402,  -2610,     14,    171,  -1108,   -602,
817     -2597,    438,  -1839,   6229,   7266,   -411,    -11,   -206,
818     -2368,  -3223,     69,   -291,     49,    987,   -166,    699,
819      1152,   -194,    816,  -2763,   3454,    553,   9127,   4946,
820     -5596,   -728,    -18,  -5084,  -1493,  -1911,   -116,  -1924,
821      -308,  -1042,   -166,  -2755,   1179,    188,   3117,   1689,
822      -532,   -663,  12262,   2495,  -1004,    -17,    -26,  -9177,
823      -380,    -61,    -21,    398,    496,     81,    101,  -1867,
824       -32,    -40,    751,    152,  -2100,   1317,  -1509,  11425,
825      2997,   -269,   -105,   -139,  -7967,   -548,    168,   -193,
826       121,   1464,   -918,   1052,    384,   -240,    276,  -2090,
827      1193,  -2697,  11259,   5373,   -763,    -86,   -444,  -7737,
828     -1762,    -35,    196,   -819,   1853,   -391,    884,  -3692,
829        55,   -125,    525,    250,   2405,   -471,  11079,    203,
830       782,   -353,    -13,  -7491,     -2,    -37,     69,  -1626,
831       318,    -29,      5,   -137,   -114,     22,   -529,     -9,
832     -1871,   5685,  11290,  -2662,   1353,   -213,  -1972,  -7780,
833      -432,   -111,    649,   1289,  -3917,   -304,    923,   1834,
834       154,   -469,   -932,    220,  -3768,   5927,  -3093,   5041,
835      5212,   -866,  -2144,   -584,  -1551,  -1658,   1363,   -711,
836      1119,   1159,  -1824,    951,   1198,  -1885,    984,  -1603,
837     -2546,   9502,   5969,  -2440,   1928,   -395,  -5511,  -2175,
838      -363,   -226,   1477,    927,  -3462,   -379,   1415,    889,
839       299,  -1118,   -702,    287,  -4963,   3568,   4592,   5508,
840      3451,  -1503,   -777,  -1287,  -1851,   -727,   1080,   1391,
841     -1000,   1668,  -1199,  -1543,   1045,   -751,   -967,  -1160,
842      1745,  -2586,   3983,  10899,  -1551,   -186,   -408,   -968,
843     -7250,   -146,    275,   -424,    628,  -1161,   1720,  -2649,
844       165,   -244,    377,   1032,    867,   -456,   -727,   3369,
845     11822,    -45,    -12,    -32,   -692,  -8531,     24,     38,
846       -20,   -178,     93,    149,   -625,    329,    525,  -2431,
847      7535,   2422,   1926,   1405,   1599,  -3466,   -358,   -226,
848      -120,   -156,  -1114,   -886,   -284,   -646,   -207,   -165,
849      -735,   -236,   -188,   -137,   1041,   -735,   -142,  13209,
850      1515,    -66,    -33,     -1, -10649,   -140,     46,      9,
851        -6,   -839,    593,    114,    -96,     68,     13,  -1222,
852      7950,   6745,  -1444,  -1008,   2721,  -3857,  -2777,   -127,
853       -62,   -452,  -3273,    700,    594,    489,    415,    -88,
854     -1320,  -1120,    239,    167,  -4754,  -1379,   4522,   -578,
855     -5733,  -1379,   -116,  -1248,    -20,  -2006,   -400,   1312,
856       380,   -167,    -48,    159,  -1663,   -482,   1582,   -202,
857      3220,   5978,   5923,   2430,  -2689,   -633,  -2181,  -2141,
858      -360,   -441,  -1175,  -1164,  -2161,   -477,   -886,   -878,
859       528,    981,    972,    398,    377,   1312,  13978,  -1470,
860       677,     -8,   -105, -11925,   -132,    -28,    -30,   -321,
861     -1119,     33,    117,   1254,    -15,    -54,   -577,     60,
862     -3435,   6770,    314,   -885,   5686,   -720,  -2797,     -6,
863       -47,  -1973,   1419,     65,   -129,   -185,    366,     16,
864      1192,  -2349,   -109,    307,   3171,   8774,  -2260,   2679,
865      3069,   -613,  -4699,   -312,   -438,   -575,  -1698,    437,
866      1210,   -518,  -1435,    369,   -594,  -1643,    423,   -501,
867      5557,   1509,   5407,   -125,  -7386,  -1884,   -139,  -1784,
868         0,  -3330,   -511,  -1834,   -498,     42,     11,     41,
869      2505,    680,   2438,    -56,  -2838,   2595,  13228,    271,
870      1793,   -491,   -411, -10680,     -4,   -196,    449,   2291,
871     -2095,     47,    -42,   -219,    310,   -284,  -1447,    -29,
872       664,   -278,  14966,    951,   -711,    -26,     -4, -13672,
873       -55,    -30,     11,   -606,    253,    -38,     16,   -869,
874        28,    -12,    650,     41,    808,   1770,   8658,   5863,
875     -1486,    -39,   -191,  -4576,  -2098,   -134,    -87,   -427,
876      -935,   -289,   -633,  -3098,     73,    160,    785,    531,
877      3063,   1539,   2000,   -542,   9576,   -572,   -144,   -244,
878       -17,  -5597,   -287,   -374,   -188,    101,     51,     66,
879     -1790,   -900,  -1169,    317,    514,  14083,   -323,    896,
880      -891,    -16, -12106,     -6,    -49,    -48,   -442,     10,
881       277,    -28,   -770,     17,     27,    766,    -17,     48,
882       892,    158,   5237,  11057,  -1603,    -48,     -1,  -1674,
883     -7462,   -156,     -8,   -285,    -50,   -602,   -106,  -3534,
884        87,     15,    512,   1082,  -1612,   2564,  -4296,  12526,
885      5710,   -158,   -401,  -1126,  -9576,  -1990,    252,   -422,
886       672,   1232,  -1960,   3284,    561,   -893,   1497,  -4365,
887      4889,  -6878,    612,   6109,   4753,  -1459,  -2887,    -22,
888     -2277,  -1379,   2052,   -182,    257,  -1823,   2564,   -228,
889     -1418,   1995,   -177,  -1772,   3053,   -506,   2403,   9625,
890      1322,   -569,    -15,   -352,  -5655,   -106,     94,   -448,
891        74,  -1794,    297,  -1412,   -246,     40,   -194,   -777,
892      -754,  12904,   4480,  -2113,   1471,    -34, -10163,  -1225,
893      -272,   -132,    594,    206,  -3529,    -97,   1664,    577,
894        67,  -1159,   -402,    189,   4255,   1476,   5055,   2393,
895      2912,  -1105,   -132,  -1559,   -349,   -517,   -383,  -1313,
896      -455,   -621,   -215,   -738,   -756,   -262,   -898,   -425,
897     -1371,    535,   1417,  14604,   -997,   -114,    -17,   -122,
898    -13017,    -60,     44,    118,    -46,   1222,   -477,  -1263,
899       -83,     32,     86,    888,   5368,  -1744,   4083,  -1236,
900      3753,  -1758,   -185,  -1017,    -93,   -860,    571,  -1338,
901       434,    405,   -131,    308,  -1229,    399,   -935,    283,
902      1588,  -3097,  14415,   3699,  -1171,   -154,   -585, -12683,
903      -835,    -83,    300,  -1397,   2725,   -358,    699,  -3255,
904       113,   -221,   1030,    264,    212,   7989,   9471,  -3344,
905      2009,     -2,  -3895,  -5475,   -682,   -246,   -103,   -123,
906     -4618,     43,   1630,   1933,    -26,   -979,  -1161,    410,
907       856,   2294,   -627,   6930,   6929,    -44,   -321,    -24,
908     -2931,  -2930,   -119,     32,     87,   -362,   -970,    265,
909      -362,   -970,    265,  -2931,   2357,  -4187,   7162,   7683,
910      3371,   -339,  -1070,  -3131,  -3603,   -693,    602,  -1030,
911      1830,  -1105,   1963,  -3359,   -485,    861,  -1474,  -1581,
912       350,   4585,  14053,  -3819,   1218,     -7,  -1283, -12054,
913      -890,    -90,    -97,   -300,  -3933,     81,   1068,   3275,
914       -26,   -341,  -1045,    284,  -3248,   3531,    475,   2137,
915     11711,   -644,   -761,    -13,   -278,  -8372,    700,     94,
916      -102,    423,   -460,    -62,   2322,  -2524,   -340,  -1528,
917     -3017,   3852,   1725,   8440,   5257,   -555,   -905,   -181,
918     -4348,  -1686,    709,    317,   -405,   1554,  -1984,   -889,
919       968,  -1236,   -553,  -2708,   -909,   3196,  15512,  -2528,
920      1066,    -50,   -623, -14686,   -390,    -69,    177,    861,
921     -3026,   -140,    493,   2393,     59,   -208,  -1009,    164,
922       959,  -3370,   9617,   9545,  -1761,    -56,   -693,  -5645,
923     -5561,   -189,    197,   -563,   1978,   -558,   1963,  -5603,
924       103,   -362,   1034,   1026,   7575,  11796,  -4845,   3252,
925     -1703,  -3502,  -8493,  -1433,   -645,   -177,  -5454,   2240,
926      3488,  -1503,  -2341,    961,    787,   1226,   -503,    338,
927      6409,   1722,   1764,  -4191,   6015,  -2507,   -181,   -189,
928     -1072,  -2208,   -673,   -690,   -185,   1639,    440,    451,
929     -2353,   -632,   -647,   1538,  -2420,  12161,   5038,   1286,
930     -2098,   -357,  -9027,  -1549,   -100,   -268,   1796,    744,
931     -3740,    190,   -954,   -395,   -310,   1557,    645,    164,
932     -2232,  -1341,   7246,   9470,  -1977,   -304,   -109,  -3204,
933     -5474,   -238,   -182,    987,    593,   1290,    775,  -4188,
934      -269,   -161,    874,   1143,   1030,   7034,   4231,   1551,
935      3077,    -64,  -3019,  -1093,   -146,   -577,   -442,   -266,
936     -1816,    -97,   -666,   -400,   -193,  -1321,   -794,   -291,
937      5121,  11835,   -477,  -1749,   2298,  -1601,  -8549,    -13,
938      -186,   -322,  -3699,    149,    344,    546,   1264,    -50,
939      -718,  -1660,     66,    245,  -3328,   3827,   5921,   9976,
940     -1045,   -676,   -894,  -2140,  -6075,    -66,    777,   1203,
941     -1383,   2027,  -2330,  -3605,   -212,    244,    377,    636,
942      3813,   5718,  -4666,  -3412,   5674,   -887,  -1995,  -1329,
943      -710,  -1965,  -1331,   1086,   1628,    794,   1191,   -972,
944     -1320,  -1980,   1616,   1181,   1348,  -3672,  13154,   6938,
945     -1690,   -110,   -823, -10561,  -2938,   -174,    302,  -1082,
946      2948,   -570,   1555,  -5570,    139,   -379,   1357,    716,
947      2151,  -3586,   6949,  12131,  -1224,   -282,   -785,  -2947,
948     -8982,    -91,    470,   -912,   1521,  -1592,   2655,  -5145,
949       160,   -268,    519,    906,  -2889,   9647,  10276,  -2728,
950       995,   -509,  -5680,  -6445,   -454,    -60,   1701,   1812,
951     -6051,   -481,   1606,   1711,    175,   -586,   -624,    165,
952      6177,   2184,    555,   1985,   6589,  -2329,   -291,    -18,
953      -240,  -2650,   -823,   -209,    -74,   -748,   -264,    -67,
954     -2484,   -878,   -223,   -798,   -492,    391,  17166,   -681,
955       240,    -14,     -9, -17987,    -28,     -3,     11,    515,
956      -410,    -20,     16,    713,      7,     -5,   -252,     10,
957     12628,   5448,  -2630,   3011,  -2695,  -9733,  -1811,   -422,
958      -553,   -443,  -4199,   2027,    874,  -2321,  -1001,    483,
959      2077,    896,   -432,    495,  -3628,   -534,   3447,   7002,
960      6751,   -803,    -17,   -725,  -2992,  -2782,   -118,    763,
961       112,   1550,    228,  -1473,   1495,    220,  -1420,  -2885,
962     -5239,   5901,   8107,   3650,   4846,  -1675,  -2125,  -4012,
963      -813,  -1433,   1887,   2592,  -2920,   1167,  -1315,  -1806,
964      1550,  -1745,  -2398,  -1080,   6157,   6678,   4099,  -1074,
965      2348,  -2314,  -2722,  -1025,    -70,   -336,  -2509,  -1540,
966     -1670,    403,    437,    268,   -882,   -957,   -587,    153,
967      1079,  16099,    242,   -881,   1690,    -71, -15820,     -3,
968       -47,   -174,  -1060,    -16,   -238,     58,    865,     13,
969      -111,  -1661,    -25,     90,   -278,    227,  -1039,   1636,
970     16945,     -4,     -3,    -65,   -163, -17526,      3,    -17,
971        14,     27,    -22,    103,    287,   -234,   1074,  -1693,
972     15778,  -1454,    574,   -603,   -107, -15195,   -129,    -20,
973       -22,      0,   1400,   -553,     51,    581,    -53,     21,
974       103,     -9,      3,     -3,   2406,   -836,  13224,   7993,
975     -4266,   -353,    -42, -10673,  -3899,  -1111,    122,  -1942,
976       674,  -1174,    407,  -6451,    626,   -217,   3443,   2081,
977      3184,  14368,  -3336,   2255,  -1801,   -619, -12600,   -679,
978      -310,   -198,  -2793,    648,   2926,   -438,  -1977,    459,
979       350,   1580,   -366,    247,  -1698,  17076,   2504,   -539,
980      -646,   -176, -17798,   -382,    -17,    -25,   1770,    259,
981     -2610,    -55,    561,     82,    -67,    673,     98,    -21,
982      2375,   -797,  -2696,  14483,   5383,   -344,    -38,   -443,
983    -12803,  -1769,    115,    391,   -131,  -2100,    705,   2384,
984      -780,    262,    886,  -4759,  -2691,   2554,  -4520,   9573,
985     10655,   -442,   -398,  -1247,  -5594,  -6930,    419,   -742,
986       704,   1572,  -1492,   2641,   1750,  -1661,   2939,  -6226,
987     -4332,  -4399,  -1657,   4880,   7375,  -1145,  -1181,   -167,
988     -1453,  -3319,  -1163,   -438,   -444,   1290,   1310,    493,
989      1950,   1980,    745,  -2196,  -3498,   7405,   9955,   2693,
990     -2971,   -746,  -3347,  -6049,   -442,   -538,   1581,   2125,
991     -4499,    575,  -1217,  -1636,   -634,   1342,   1805,    488,
992      6717,  -3792,   7739,   2798,   3489,  -2754,   -877,  -3655,
993      -477,   -743,   1554,  -3173,   1791,  -1147,    647,  -1321,
994     -1430,    807,  -1648,   -595,   5263,   9770,   3463,   1069,
995     -3971,  -1690,  -5826,   -732,    -69,   -962,  -3138,  -1112,
996     -2065,   -343,   -637,   -226,   1275,   2368,    839,    259,
997      1243,  -2634,  16772,   1871,    332,    -94,   -423, -17169,
998      -213,     -6,    199,  -1273,   2696,   -142,    300,  -1915,
999       -25,     53,   -339,    -37,   2691,   2836,   3105,   5711,
1000      4817,   -442,   -491,   -588,  -1991,  -1416,   -465,   -510,
1001      -537,   -938,   -988,  -1082,   -791,   -834,   -913,  -1679,
1002      4366,   2944,   7210,   3627,   1161,  -1163,   -529,  -3172,
1003      -803,    -82,   -784,  -1921,  -1295,   -966,   -651,  -1596,
1004      -309,   -208,   -511,   -257,  13888,   3951,   -671,  -2305,
1005      3354, -11773,   -953,    -27,   -324,   -686,  -3349,    569,
1006       161,   1954,    556,    -94,  -2843,   -809,    137,    472,
1007      7053,   5847,   2929,   8378,  -4794,  -3036,  -2086,   -523,
1008     -4284,  -1403,  -2517,  -1261,  -1045,  -3607,  -2990,  -1498,
1009      2064,   1711,    857,   2451,  -2191,  12838,   9182,  -3915,
1010      1617,   -293, -10059,  -5146,   -935,   -159,   1717,   1228,
1011     -7195,   -523,   3068,   2194,    216,  -1267,   -906,    386,
1012     -4881,  13114,   5767,   -435,   4155,  -1454, -10498,  -2030,
1013       -11,  -1054,   3907,   1718,  -4616,   -129,    348,    153,
1014      1238,  -3326,  -1462,    110,   7843,  -1250,    210,   7106,
1015     -5203,  -3754,    -95,     -2,  -3082,  -1652,    598,   -100,
1016        16,  -3402,    542,    -91,   2491,   -397,     66,   2257,
1017     -2463,   8168,  14551,  -3908,   1828,   -370,  -4072, -12923,
1018      -932,   -204,   1228,   2188,  -7254,   -587,   1948,   3471,
1019       274,   -911,  -1623,    436,  -1579,    347,   -272,  -2735,
1020     16031,   -152,     -7,     -4,   -456, -15686,     33,    -26,
1021         5,   -263,     58,    -45,   1545,   -340,    266,   2676,
1022     -6327,   1328,   5093,  -5079,   7617,  -2443,   -107,  -1583,
1023     -1574,  -3541,    513,   1967,   -413,  -1961,    411,   1578,
1024      2941,   -617,  -2367,   2361,   3286,  -4509,  11306,  11025,
1025     -2623,   -659,  -1241,  -7802,  -7419,   -420,    904,  -2267,
1026      3112,  -2211,   3034,  -7608,    526,   -722,   1810,   1765,
1027      5567,  17853,  -3754,   1166,   -519,  -1892, -19455,   -860,
1028       -83,    -16,  -6067,   1275,   4090,   -396,  -1271,    267,
1029       176,    566,   -119,     37,  -2136,   -424,  15292,   5108,
1030     -1648,   -278,    -10, -14273,  -1593,   -165,    -55,   1993,
1031       396,    666,    132,  -4768,   -214,    -42,   1538,    514,
1032      2267,  -3297,   2549,  16563,   -791,   -313,   -663,   -396,
1033    -16745,    -38,    456,   -352,    513,  -2291,   3333,  -2576,
1034       109,   -159,    123,    799,   3655,   1899,  -3364,   6279,
1035     12510,   -815,   -220,   -690,  -2406,  -9552,   -423,    750,
1036       390,  -1400,   -728,   1289,  -2791,  -1450,   2568,  -4794,
1037      8052,   2285,  -6193,   5138,   6003,  -3957,   -318,  -2341,
1038     -1611,  -2199,  -1123,   3044,    864,  -2525,   -716,   1942,
1039     -2950,   -837,   2269,  -1882,   -386,  -2291,   7679,  15387,
1040     -2723,     -9,   -320,  -3599, -14452,   -452,    -54,    181,
1041      1074,    362,   2152,  -7212,    -64,   -380,   1276,   2557,
1042      2777,  -1173,   3984,  13079,   2508,   -470,    -84,   -969,
1043    -10440,   -384,    198,   -675,    285,  -2217,    936,  -3180,
1044      -425,    179,   -610,  -2002,  -1879,   1771,  -2684,  16705,
1045      1833,   -215,   -191,   -439, -17032,   -205,    203,   -308,
1046       290,   1916,  -1805,   2736,    210,   -198,    300,  -1869,
1047      1052,   4495,  15519,   1467,  -4032,    -67,  -1233, -14700,
1048      -131,   -992,   -288,   -997,  -4257,    -94,   -402,  -1389,
1049       259,   1106,   3819,    361,   3010,   2544,   6969,   7559,
1050      1996,   -553,   -395,  -2964,  -3487,   -243,   -467,  -1280,
1051     -1082,  -1388,  -1174,  -3215,   -366,   -310,   -849,   -921,
1052     -5209,  -1867,   8713,  10351,   1549,  -1656,   -212,  -4634,
1053     -6540,   -146,   -593,   2770,    993,   3291,   1180,  -5505,
1054       492,    176,   -824,   -979,  -4314,   8513,    913,   7547,
1055     -2723,  -1135,  -4423,    -50,  -3476,   -452,   2241,    240,
1056      -474,   1987,  -3921,   -420,   -717,   1415,    151,   1254,
1057     12929,  -1219,   2448,   1757,   6303, -10204,    -90,   -365,
1058      -188,  -2425,    962,  -1932,    182,  -1386,    130,   -262,
1059     -4974,    469,   -941,   -676,   6465,   4132,   3167,   3160,
1060      5697,  -2551,  -1042,   -612,   -609,  -1981,  -1630,  -1249,
1061      -798,  -1247,   -797,   -611,  -2248,  -1437,  -1101,  -1099,
1062     -3636,   4859,  18914,  -1335,    810,   -807,  -1441, -21836,
1063      -108,    -40,   1078,   4198,  -5609,   -296,    396,   1541,
1064       179,   -240,   -936,     66,   8844,   7864,    654,  -4063,
1065     -5680,  -4774,  -3774,    -26,  -1007,  -1969,  -4245,   -353,
1066      -314,   2193,   1950,    162,   3066,   2726,    226,  -1408,
1067      1859,   2634,   9228,    996,   9464,   -211,   -423,  -5197,
1068       -60,  -5467,   -299,  -1047,  -1483,   -113,   -160,   -561,
1069     -1074,  -1521,  -5330,   -575,   2949,  12260,  10290,   -497,
1070     -3943,   -530,  -9174,  -6463,    -15,   -949,  -2206,  -1852,
1071     -7700,     89,    372,    312,    709,   2950,   2476,   -119,
1072     -2903,   1552,  14867,   9970,   -496,   -514,   -147, -13491,
1073     -6068,    -15,    275,   2634,  -1408,   1766,   -944,  -9047,
1074       -87,     47,    450,    302,   3243,   8234,   7586,   3373,
1075      2151,   -642,  -4138,  -3512,   -694,   -282,  -1630,  -1501,
1076     -3812,   -667,  -1695,  -1561,   -425,  -1081,   -996,   -442,
1077     -9631,     60,   3501,   5359,  10150,  -5662,      0,   -748,
1078     -1752,  -6288,     35,   2058,    -12,   3150,    -19,  -1145,
1079      5967,    -37,  -2169,  -3320,  -6874,  -2553,  -5446,  -2195,
1080     -7841,  -2884,   -397,  -1810,   -294,  -3753,  -1071,  -2285,
1081      -848,   -921,   -342,   -729,  -3290,  -1221,  -2606,  -1050,
1082     -3413,  -1141,   4630,  13612,   7897,   -711,    -79,  -1308,
1083    -11310,  -3806,   -237,    964,    322,   2836,    948,  -3847,
1084      1645,    550,  -2231,  -6561,   4410,  -5678,   8006,  -3992,
1085      3811,  -1187,  -1968,  -3912,   -973,   -886,   1528,  -2155,
1086      2775,   1074,  -1383,   1951,  -1025,   1321,  -1862,    928,
1087      5659,  11535,   2203,   -452,   7169,  -1954,  -8121,   -296,
1088       -12,  -3137,  -3984,   -761,  -1551,    156,    318,     60,
1089     -2476,  -5048,   -964,    197,   2914,  -2914,   3485,  -3965,
1090     13675,   -518,   -518,   -741,   -959, -11414,    518,   -620,
1091       620,    705,   -705,    843,  -2433,   2432,  -2909,   3310,
1092      7843,   1907,   1022,   8882,   7972,  -3755,   -222,    -63,
1093     -4815,  -3879,   -913,   -489,   -119,  -4252,  -1034,   -554,
1094     -3816,   -928,   -497,  -4322,  13807,   9531,   1436,   1612,
1095      1779, -11636,  -5544,   -125,   -158,   -193,  -8032,  -1210,
1096      -835,  -1358,   -938,   -141,  -1499,  -1035,   -156,   -175,
1097     13620,  -5337,   5450,  -2263,   1723, -11322,  -1738,  -1813,
1098      -312,   -181,   4436,  -4531,   1775,   1881,   -737,    752,
1099     -1432,    561,   -573,    238,   5297,   8374,   8872,   7694,
1100      6538,  -1712,  -4280,  -4804,  -3613,  -2609,  -2707,  -2868,
1101     -4534,  -2487,  -3932,  -4166,  -2113,  -3341,  -3540,  -3070
1102 };
1103 
ff_g723_1_scale_vector(int16_t * dst,const int16_t * vector,int length)1104 int ff_g723_1_scale_vector(int16_t *dst, const int16_t *vector, int length)
1105 {
1106     int bits, max = 0;
1107     int i;
1108 
1109     for (i = 0; i < length; i++)
1110         max |= FFABS(vector[i]);
1111 
1112     bits= 14 - av_log2_16bit(max);
1113     bits= FFMAX(bits, 0);
1114 
1115     for (i = 0; i < length; i++)
1116         dst[i] = (vector[i] * (1 << bits)) >> 3;
1117 
1118     return bits - 3;
1119 }
1120 
ff_g723_1_normalize_bits(int num,int width)1121 int ff_g723_1_normalize_bits(int num, int width)
1122 {
1123     return width - av_log2(num) - 1;
1124 }
1125 
ff_g723_1_dot_product(const int16_t * a,const int16_t * b,int length)1126 int ff_g723_1_dot_product(const int16_t *a, const int16_t *b, int length)
1127 {
1128     int sum = ff_dot_product(a, b, length);
1129     return av_sat_add32(sum, sum);
1130 }
1131 
ff_g723_1_get_residual(int16_t * residual,int16_t * prev_excitation,int lag)1132 void ff_g723_1_get_residual(int16_t *residual, int16_t *prev_excitation,
1133                             int lag)
1134 {
1135     int offset = PITCH_MAX - PITCH_ORDER / 2 - lag;
1136     int i;
1137 
1138     residual[0] = prev_excitation[offset];
1139     residual[1] = prev_excitation[offset + 1];
1140 
1141     offset += 2;
1142     for (i = 2; i < SUBFRAME_LEN + PITCH_ORDER - 1; i++)
1143         residual[i] = prev_excitation[offset + (i - 2) % lag];
1144 }
1145 
ff_g723_1_gen_dirac_train(int16_t * buf,int pitch_lag)1146 void ff_g723_1_gen_dirac_train(int16_t *buf, int pitch_lag)
1147 {
1148     int16_t vector[SUBFRAME_LEN];
1149     int i, j;
1150 
1151     memcpy(vector, buf, SUBFRAME_LEN * sizeof(*vector));
1152     for (i = pitch_lag; i < SUBFRAME_LEN; i += pitch_lag) {
1153         for (j = 0; j < SUBFRAME_LEN - i; j++)
1154             buf[i + j] += vector[j];
1155     }
1156 }
1157 
ff_g723_1_gen_acb_excitation(int16_t * vector,int16_t * prev_excitation,int pitch_lag,G723_1_Subframe * subfrm,enum Rate cur_rate)1158 void ff_g723_1_gen_acb_excitation(int16_t *vector, int16_t *prev_excitation,
1159                                   int pitch_lag, G723_1_Subframe *subfrm,
1160                                   enum Rate cur_rate)
1161 {
1162     int16_t residual[SUBFRAME_LEN + PITCH_ORDER - 1];
1163     const int16_t *cb_ptr;
1164     int lag = pitch_lag + subfrm->ad_cb_lag - 1;
1165 
1166     int i;
1167     int sum;
1168 
1169     ff_g723_1_get_residual(residual, prev_excitation, lag);
1170 
1171     /* Select quantization table */
1172     if (cur_rate == RATE_6300 && pitch_lag < SUBFRAME_LEN - 2) {
1173         cb_ptr = ff_g723_1_adaptive_cb_gain85;
1174     } else
1175         cb_ptr = ff_g723_1_adaptive_cb_gain170;
1176 
1177     /* Calculate adaptive vector */
1178     cb_ptr += subfrm->ad_cb_gain * 20;
1179     for (i = 0; i < SUBFRAME_LEN; i++) {
1180         sum = ff_dot_product(residual + i, cb_ptr, PITCH_ORDER);
1181         vector[i] = av_sat_dadd32(1 << 15, av_sat_add32(sum, sum)) >> 16;
1182     }
1183 }
1184 
1185 /**
1186  * Convert LSP frequencies to LPC coefficients.
1187  *
1188  * @param lpc buffer for LPC coefficients
1189  */
lsp2lpc(int16_t * lpc)1190 static void lsp2lpc(int16_t *lpc)
1191 {
1192     int f1[LPC_ORDER / 2 + 1];
1193     int f2[LPC_ORDER / 2 + 1];
1194     int i, j;
1195 
1196     /* Calculate negative cosine */
1197     for (j = 0; j < LPC_ORDER; j++) {
1198         int index     = (lpc[j] >> 7) & 0x1FF;
1199         int offset    = lpc[j] & 0x7f;
1200         int temp1  =  ff_g723_1_cos_tab[index] * (1 << 16);
1201         int temp2  = (ff_g723_1_cos_tab[index + 1] - ff_g723_1_cos_tab[index]) *
1202                           (((offset << 8) + 0x80) << 1);
1203 
1204         lpc[j] = -(av_sat_dadd32(1 << 15, temp1 + temp2) >> 16);
1205     }
1206 
1207     /*
1208      * Compute sum and difference polynomial coefficients
1209      * (bitexact alternative to lsp2poly() in lsp.c)
1210      */
1211     /* Initialize with values in Q28 */
1212     f1[0] = 1 << 28;
1213     f1[1] = (lpc[0] + lpc[2]) * (1 << 14);
1214     f1[2] = lpc[0] * lpc[2] + (2 << 28);
1215 
1216     f2[0] = 1 << 28;
1217     f2[1] = (lpc[1] + lpc[3]) * (1 << 14);
1218     f2[2] = lpc[1] * lpc[3] + (2 << 28);
1219 
1220     /*
1221      * Calculate and scale the coefficients by 1/2 in
1222      * each iteration for a final scaling factor of Q25
1223      */
1224     for (i = 2; i < LPC_ORDER / 2; i++) {
1225         f1[i + 1] = av_clipl_int32(f1[i - 1] + (int64_t)MULL2(f1[i], lpc[2 * i]));
1226         f2[i + 1] = av_clipl_int32(f2[i - 1] + (int64_t)MULL2(f2[i], lpc[2 * i + 1]));
1227 
1228         for (j = i; j >= 2; j--) {
1229             f1[j] = MULL2(f1[j - 1], lpc[2 * i]) +
1230                     (f1[j] >> 1) + (f1[j - 2] >> 1);
1231             f2[j] = MULL2(f2[j - 1], lpc[2 * i + 1]) +
1232                     (f2[j] >> 1) + (f2[j - 2] >> 1);
1233         }
1234 
1235         f1[0] >>= 1;
1236         f2[0] >>= 1;
1237         f1[1] = ((lpc[2 * i]     * 65536 >> i) + f1[1]) >> 1;
1238         f2[1] = ((lpc[2 * i + 1] * 65536 >> i) + f2[1]) >> 1;
1239     }
1240 
1241     /* Convert polynomial coefficients to LPC coefficients */
1242     for (i = 0; i < LPC_ORDER / 2; i++) {
1243         int64_t ff1 = f1[i + 1] + f1[i];
1244         int64_t ff2 = f2[i + 1] - f2[i];
1245 
1246         lpc[i] = av_clipl_int32(((ff1 + ff2) * 8) + (1 << 15)) >> 16;
1247         lpc[LPC_ORDER - i - 1] = av_clipl_int32(((ff1 - ff2) * 8) +
1248                                                 (1 << 15)) >> 16;
1249     }
1250 }
1251 
ff_g723_1_lsp_interpolate(int16_t * lpc,int16_t * cur_lsp,int16_t * prev_lsp)1252 void ff_g723_1_lsp_interpolate(int16_t *lpc, int16_t *cur_lsp,
1253                                int16_t *prev_lsp)
1254 {
1255     int i;
1256     int16_t *lpc_ptr = lpc;
1257 
1258     /* cur_lsp * 0.25 + prev_lsp * 0.75 */
1259     ff_acelp_weighted_vector_sum(lpc, cur_lsp, prev_lsp,
1260                                  4096, 12288, 1 << 13, 14, LPC_ORDER);
1261     ff_acelp_weighted_vector_sum(lpc + LPC_ORDER, cur_lsp, prev_lsp,
1262                                  8192, 8192, 1 << 13, 14, LPC_ORDER);
1263     ff_acelp_weighted_vector_sum(lpc + 2 * LPC_ORDER, cur_lsp, prev_lsp,
1264                                  12288, 4096, 1 << 13, 14, LPC_ORDER);
1265     memcpy(lpc + 3 * LPC_ORDER, cur_lsp, LPC_ORDER * sizeof(*lpc));
1266 
1267     for (i = 0; i < SUBFRAMES; i++) {
1268         lsp2lpc(lpc_ptr);
1269         lpc_ptr += LPC_ORDER;
1270     }
1271 }
1272 
ff_g723_1_inverse_quant(int16_t * cur_lsp,int16_t * prev_lsp,uint8_t * lsp_index,int bad_frame)1273 void ff_g723_1_inverse_quant(int16_t *cur_lsp, int16_t *prev_lsp,
1274                              uint8_t *lsp_index, int bad_frame)
1275 {
1276     int min_dist, pred;
1277     int i, j, temp, stable;
1278 
1279     /* Check for frame erasure */
1280     if (!bad_frame) {
1281         min_dist     = 0x100;
1282         pred         = 12288;
1283     } else {
1284         min_dist     = 0x200;
1285         pred         = 23552;
1286         lsp_index[0] = lsp_index[1] = lsp_index[2] = 0;
1287     }
1288 
1289     /* Get the VQ table entry corresponding to the transmitted index */
1290     cur_lsp[0] = ff_g723_1_lsp_band0[lsp_index[0]][0];
1291     cur_lsp[1] = ff_g723_1_lsp_band0[lsp_index[0]][1];
1292     cur_lsp[2] = ff_g723_1_lsp_band0[lsp_index[0]][2];
1293     cur_lsp[3] = ff_g723_1_lsp_band1[lsp_index[1]][0];
1294     cur_lsp[4] = ff_g723_1_lsp_band1[lsp_index[1]][1];
1295     cur_lsp[5] = ff_g723_1_lsp_band1[lsp_index[1]][2];
1296     cur_lsp[6] = ff_g723_1_lsp_band2[lsp_index[2]][0];
1297     cur_lsp[7] = ff_g723_1_lsp_band2[lsp_index[2]][1];
1298     cur_lsp[8] = ff_g723_1_lsp_band2[lsp_index[2]][2];
1299     cur_lsp[9] = ff_g723_1_lsp_band2[lsp_index[2]][3];
1300 
1301     /* Add predicted vector & DC component to the previously quantized vector */
1302     for (i = 0; i < LPC_ORDER; i++) {
1303         temp        = ((prev_lsp[i] - dc_lsp[i]) * pred + (1 << 14)) >> 15;
1304         cur_lsp[i] += dc_lsp[i] + temp;
1305     }
1306 
1307     for (i = 0; i < LPC_ORDER; i++) {
1308         cur_lsp[0]             = FFMAX(cur_lsp[0],  0x180);
1309         cur_lsp[LPC_ORDER - 1] = FFMIN(cur_lsp[LPC_ORDER - 1], 0x7e00);
1310 
1311         /* Stability check */
1312         for (j = 1; j < LPC_ORDER; j++) {
1313             temp = min_dist + cur_lsp[j - 1] - cur_lsp[j];
1314             if (temp > 0) {
1315                 temp >>= 1;
1316                 cur_lsp[j - 1] -= temp;
1317                 cur_lsp[j]     += temp;
1318             }
1319         }
1320         stable = 1;
1321         for (j = 1; j < LPC_ORDER; j++) {
1322             temp = cur_lsp[j - 1] + min_dist - cur_lsp[j] - 4;
1323             if (temp > 0) {
1324                 stable = 0;
1325                 break;
1326             }
1327         }
1328         if (stable)
1329             break;
1330     }
1331     if (!stable)
1332         memcpy(cur_lsp, prev_lsp, LPC_ORDER * sizeof(*cur_lsp));
1333 }
1334