falkTX
/
FFmpeg
mirror of https://github.com/falkTX/FFmpeg.git
1
0
Fork 0
Code Issues 0 Releases 338 Wiki Activity
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
16554 Commits
32 Branches
388MB
Tree: 0d2d0f97a5
Branches Tags
${ item.name }
Create branch ${ searchTerm }
from '0d2d0f97a5'
${ noResults }
FFmpeg/libavcodec/qcelpdata.h

494 lines
18KB
Raw Blame History 

  1. /*

  2.  * QCELP decoder

  3.  * Copyright (c) 2007 Reynaldo H. Verdejo Pinochet

  4.  *

  5.  * This file is part of FFmpeg.

  6.  *

  7.  * FFmpeg is free software; you can redistribute it and/or

  8.  * modify it under the terms of the GNU Lesser General Public

  9.  * License as published by the Free Software Foundation; either

  10.  * version 2.1 of the License, or (at your option) any later version.

  11.  *

  12.  * FFmpeg is distributed in the hope that it will be useful,

  13.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  14.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

  15.  * Lesser General Public License for more details.

  16.  *

  17.  * You should have received a copy of the GNU Lesser General Public

  18.  * License along with FFmpeg; if not, write to the Free Software

  19.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

  20.  */

  21. 

  22. #ifndef AVCODEC_QCELPDATA_H

  23. #define AVCODEC_QCELPDATA_H

  24. 

  25. /**

  26.  * @file qcelpdata.h

  27.  * Data tables for the QCELP decoder

  28.  * @author Reynaldo H. Verdejo Pinochet

  29.  * @remark FFmpeg merging spearheaded by Kenan Gillet

  30.  */

  31. 

  32. #include <stdint.h>

  33. 

  34. /**

  35.  * pre-calculated table for hammsinc function

  36.  * Only half of the table is needed because of symmetry.

  37.  *

  38.  * TIA/EIA/IS-733 2.4.5.2-2/3

  39.  */

  40. static const float qcelp_hammsinc_table[4] = { -0.006822,  0.041249, -0.143459,  0.588863};

  41. 

  42. typedef struct {

  43.     uint8_t index;  /*!< index into the QCELPContext structure */

  44.     uint8_t bitpos; /*!< position of the lowest bit in the value's byte */

  45.     uint8_t bitlen; /*!< number of bits to read */

  46. } QCELPBitmap;

  47. 

  48. #define QCELP_OF(variable, bit, len) {offsetof(QCELPContext, variable), bit, len}

  49. 

  50. /**

  51.  * bitmap unpacking tables for RATE_FULL

  52.  *

  53.  * TIA/EIA/IS-733 Table 2.4.7.1-1

  54.  */

  55. static const QCELPBitmap qcelp_rate_full_bitmap[] = {

  56.                                 // start on bit

  57.     QCELP_OF(lspv  [ 2], 0, 3), // 265

  58.     QCELP_OF(lspv  [ 1], 0, 7), // 262

  59.     QCELP_OF(lspv  [ 0], 0, 6), // 255

  60.     QCELP_OF(lspv  [ 4], 0, 6), // 249

  61.     QCELP_OF(lspv  [ 3], 0, 6), // 243

  62.     QCELP_OF(lspv  [ 2], 3, 4), // 237

  63.     QCELP_OF(cbsign[ 0], 0, 1), // 233

  64.     QCELP_OF(cbgain[ 0], 0, 4), // 232

  65.     QCELP_OF(pfrac [ 0], 0, 1), // 228

  66.     QCELP_OF(plag  [ 0], 0, 7), // 227

  67.     QCELP_OF(pgain [ 0], 0, 3), // 220

  68.     QCELP_OF(cindex[ 1], 0, 4), // 217

  69.     QCELP_OF(cbsign[ 1], 0, 1), // 213

  70.     QCELP_OF(cbgain[ 1], 0, 4), // 212

  71.     QCELP_OF(cindex[ 0], 0, 7), // 208

  72.     QCELP_OF(cbgain[ 3], 0, 1), // 201

  73.     QCELP_OF(cindex[ 2], 0, 7), // 200

  74.     QCELP_OF(cbsign[ 2], 0, 1), // 193

  75.     QCELP_OF(cbgain[ 2], 0, 4), // 192

  76.     QCELP_OF(cindex[ 1], 4, 3), // 188

  77.     QCELP_OF(plag  [ 1], 0, 3), // 185

  78.     QCELP_OF(pgain [ 1], 0, 3), // 182

  79.     QCELP_OF(cindex[ 3], 0, 7), // 179

  80.     QCELP_OF(cbsign[ 3], 0, 1), // 172

  81.     QCELP_OF(cbgain[ 3], 1, 2), // 171

  82.     QCELP_OF(cindex[ 4], 0, 6), // 169

  83.     QCELP_OF(cbsign[ 4], 0, 1), // 163

  84.     QCELP_OF(cbgain[ 4], 0, 4), // 162

  85.     QCELP_OF(pfrac [ 1], 0, 1), // 158

  86.     QCELP_OF(plag  [ 1], 3, 4), // 157

  87.     QCELP_OF(cbgain[ 6], 0, 3), // 153

  88.     QCELP_OF(cindex[ 5], 0, 7), // 150

  89.     QCELP_OF(cbsign[ 5], 0, 1), // 143

  90.     QCELP_OF(cbgain[ 5], 0, 4), // 142

  91.     QCELP_OF(cindex[ 4], 6, 1), // 138

  92.     QCELP_OF(cindex[ 7], 0, 3), // 137

  93.     QCELP_OF(cbsign[ 7], 0, 1), // 134

  94.     QCELP_OF(cbgain[ 7], 0, 3), // 133

  95.     QCELP_OF(cindex[ 6], 0, 7), // 130

  96.     QCELP_OF(cbsign[ 6], 0, 1), // 123

  97.     QCELP_OF(cbgain[ 6], 3, 1), // 122

  98.     QCELP_OF(cbgain[ 8], 0, 1), // 121

  99.     QCELP_OF(pfrac [ 2], 0, 1), // 120

  100.     QCELP_OF(plag  [ 2], 0, 7), // 119

  101.     QCELP_OF(pgain [ 2], 0, 3), // 112

  102.     QCELP_OF(cindex[ 7], 3, 4), // 109

  103.     QCELP_OF(cbsign[ 9], 0, 1), // 105

  104.     QCELP_OF(cbgain[ 9], 0, 4), // 104

  105.     QCELP_OF(cindex[ 8], 0, 7), // 100

  106.     QCELP_OF(cbsign[ 8], 0, 1), //  93

  107.     QCELP_OF(cbgain[ 8], 1, 3), //  92

  108.     QCELP_OF(cindex[10], 0, 4), //  89

  109.     QCELP_OF(cbsign[10], 0, 1), //  85

  110.     QCELP_OF(cbgain[10], 0, 4), //  84

  111.     QCELP_OF(cindex[ 9], 0, 7), //  80

  112.     QCELP_OF(pgain [ 3], 0, 2), //  73

  113.     QCELP_OF(cindex[11], 0, 7), //  71

  114.     QCELP_OF(cbsign[11], 0, 1), //  64

  115.     QCELP_OF(cbgain[11], 0, 3), //  63

  116.     QCELP_OF(cindex[10], 4, 3), //  60

  117.     QCELP_OF(cindex[12], 0, 2), //  57

  118.     QCELP_OF(cbsign[12], 0, 1), //  55

  119.     QCELP_OF(cbgain[12], 0, 4), //  54

  120.     QCELP_OF(pfrac [ 3], 0, 1), //  50

  121.     QCELP_OF(plag  [ 3], 0, 7), //  49

  122.     QCELP_OF(pgain [ 3], 2, 1), //  42

  123.     QCELP_OF(cindex[13], 0, 6), //  41

  124.     QCELP_OF(cbsign[13], 0, 1), //  35

  125.     QCELP_OF(cbgain[13], 0, 4), //  34

  126.     QCELP_OF(cindex[12], 2, 5), //  30

  127.     QCELP_OF(cbgain[15], 0, 3), //  25

  128.     QCELP_OF(cindex[14], 0, 7), //  22

  129.     QCELP_OF(cbsign[14], 0, 1), //  15

  130.     QCELP_OF(cbgain[14], 0, 4), //  14

  131.     QCELP_OF(cindex[13], 6, 1), //  10

  132.     QCELP_OF(reserved,   0, 2), //   9

  133.     QCELP_OF(cindex[15], 0, 7), //   7

  134.     QCELP_OF(cbsign[15], 0, 1)  //   0

  135. };

  136. 

  137. /**

  138.  * bitmap unpacking tables for RATE_HALF

  139.  *

  140.  * TIA/EIA/IS-733 Table 2.4.7.2-1

  141.  */

  142. static const QCELPBitmap qcelp_rate_half_bitmap[] = {

  143.                                // start on bit

  144.     QCELP_OF(lspv  [2], 0, 3), // 123

  145.     QCELP_OF(lspv  [1], 0, 7), // 120

  146.     QCELP_OF(lspv  [0], 0, 6), // 113

  147.     QCELP_OF(lspv  [4], 0, 6), // 107

  148.     QCELP_OF(lspv  [3], 0, 6), // 101

  149.     QCELP_OF(lspv  [2], 3, 4), //  95

  150.     QCELP_OF(cbsign[0], 0, 1), //  91

  151.     QCELP_OF(cbgain[0], 0, 4), //  90

  152.     QCELP_OF(pfrac [0], 0, 1), //  86

  153.     QCELP_OF(plag  [0], 0, 7), //  85

  154.     QCELP_OF(pgain [0], 0, 3), //  78

  155.     QCELP_OF(plag  [1], 0, 6), //  75

  156.     QCELP_OF(pgain [1], 0, 3), //  69

  157.     QCELP_OF(cindex[0], 0, 7), //  66

  158.     QCELP_OF(pgain [2], 0, 2), //  59

  159.     QCELP_OF(cindex[1], 0, 7), //  57

  160.     QCELP_OF(cbsign[1], 0, 1), //  50

  161.     QCELP_OF(cbgain[1], 0, 4), //  49

  162.     QCELP_OF(pfrac [1], 0, 1), //  45

  163.     QCELP_OF(plag  [1], 6, 1), //  44

  164.     QCELP_OF(cindex[2], 0, 2), //  43

  165.     QCELP_OF(cbsign[2], 0, 1), //  41

  166.     QCELP_OF(cbgain[2], 0, 4), //  40

  167.     QCELP_OF(pfrac [2], 0, 1), //  36

  168.     QCELP_OF(plag  [2], 0, 7), //  35

  169.     QCELP_OF(pgain [2], 2, 1), //  28

  170.     QCELP_OF(pfrac [3], 0, 1), //  27

  171.     QCELP_OF(plag  [3], 0, 7), //  26

  172.     QCELP_OF(pgain [3], 0, 3), //  19

  173.     QCELP_OF(cindex[2], 2, 5), //  16

  174.     QCELP_OF(cindex[3], 0, 7), //  11

  175.     QCELP_OF(cbsign[3], 0, 1), //   4

  176.     QCELP_OF(cbgain[3], 0, 4)  //   3

  177. };

  178. 

  179. /**

  180.  * bitmap unpacking tables for RATE_QUARTER

  181.  *

  182.  * TIA/EIA/IS-733 Table 2.4.7.3-1

  183.  */

  184. static const QCELPBitmap qcelp_rate_quarter_bitmap[] = {

  185.                                // start on bit

  186.     QCELP_OF(lspv  [2], 0, 3), // 53

  187.     QCELP_OF(lspv  [1], 0, 7), // 50

  188.     QCELP_OF(lspv  [0], 0, 6), // 43

  189.     QCELP_OF(lspv  [4], 0, 6), // 37

  190.     QCELP_OF(lspv  [3], 0, 6), // 31

  191.     QCELP_OF(lspv  [2], 3, 4), // 25

  192.     QCELP_OF(cbgain[3], 0, 4), // 21

  193.     QCELP_OF(cbgain[2], 0, 4), // 17

  194.     QCELP_OF(cbgain[1], 0, 4), // 13

  195.     QCELP_OF(cbgain[0], 0, 4), //  9

  196.     QCELP_OF(reserved,  0, 2), //  5

  197.     QCELP_OF(cbgain[4], 0, 4)  //  3

  198. };

  199. 

  200. /**

  201.  * bitmap unpacking tables for RATE_OCTAVE

  202.  *

  203.  * trick: CBSEED is written into QCELPContext.cbsign[15],

  204.  * which is not used for RATE_OCTAVE.

  205.  * CBSEED is only used to ensure the occurrence of random bit

  206.  * patterns in the 16 first bits that are used as the seed.

  207.  *

  208.  * TIA/EIA/IS-733 Table 2.4.7.4-1

  209.  */

  210. static const QCELPBitmap qcelp_rate_octave_bitmap[] = {

  211.                                 // start on bit

  212.     QCELP_OF(cbsign[15], 3, 1), // 19

  213.     QCELP_OF(lspv   [0], 0, 1), // 18

  214.     QCELP_OF(lspv   [1], 0, 1), // 17

  215.     QCELP_OF(lspv   [2], 0, 1), // 16

  216.     QCELP_OF(cbsign[15], 2, 1), // 15

  217.     QCELP_OF(lspv   [3], 0, 1), // 14

  218.     QCELP_OF(lspv   [4], 0, 1), // 13

  219.     QCELP_OF(lspv   [5], 0, 1), // 12

  220.     QCELP_OF(cbsign[15], 1, 1), // 11

  221.     QCELP_OF(lspv   [6], 0, 1), // 10

  222.     QCELP_OF(lspv   [7], 0, 1), //  9

  223.     QCELP_OF(lspv   [8], 0, 1), //  8

  224.     QCELP_OF(cbsign[15], 0, 1), //  7

  225.     QCELP_OF(lspv   [9], 0, 1), //  6

  226.     QCELP_OF(cbgain [0], 0, 2), //  7

  227.     QCELP_OF(reserved,   0, 4)  //  3

  228. };

  229. 

  230. /**

  231.  * position of the bitmapping data for each packet type in

  232.  * the QCELPContext

  233.  */

  234. static const QCELPBitmap * const qcelp_unpacking_bitmaps_per_rate[5] = {

  235.     NULL,                     ///!< for SILENCE rate

  236.     qcelp_rate_octave_bitmap,

  237.     qcelp_rate_quarter_bitmap,

  238.     qcelp_rate_half_bitmap,

  239.     qcelp_rate_full_bitmap,

  240. };

  241. 

  242. static const uint16_t qcelp_bits_per_rate[5] = {

  243.     0, ///!< for SILENCE rate

  244.     FF_ARRAY_ELEMS(qcelp_rate_octave_bitmap),

  245.     FF_ARRAY_ELEMS(qcelp_rate_quarter_bitmap),

  246.     FF_ARRAY_ELEMS(qcelp_rate_half_bitmap),

  247.     FF_ARRAY_ELEMS(qcelp_rate_full_bitmap),

  248. };

  249. 

  250. typedef uint16_t qcelp_vector[2];

  251. 

  252. /**

  253.  * LSP vector quantization tables in x*10000 form

  254.  *

  255.  * TIA/EIA/IS-733 tables 2.4.3.2.6.3-1 through 2.4.3.2.6.3-5

  256.  */

  257. 

  258. static const qcelp_vector qcelp_lspvq1[64]= {

  259. { 327, 118},{ 919, 111},{ 427, 440},{1327, 185},

  260. { 469,  50},{1272,  91},{ 892,  59},{1771, 193},

  261. { 222, 158},{1100, 127},{ 827,  55},{ 978, 791},

  262. { 665,  47},{ 700,1401},{ 670, 859},{1913,1048},

  263. { 471, 215},{1046, 125},{ 645, 298},{1599, 160},

  264. { 593,  39},{1187, 462},{ 749, 341},{1520, 511},

  265. { 290, 792},{ 909, 362},{ 753,  81},{1111,1058},

  266. { 519, 253},{ 828, 839},{ 685, 541},{1421,1258},

  267. { 386, 130},{ 962, 119},{ 542, 387},{1431, 185},

  268. { 526,  51},{1175, 260},{ 831, 167},{1728, 510},

  269. { 273, 437},{1172, 113},{ 771, 144},{1122, 751},

  270. { 619, 119},{ 492,1276},{ 658, 695},{1882, 615},

  271. { 415, 200},{1018,  88},{ 681, 339},{1436, 325},

  272. { 555, 122},{1042, 485},{ 826, 345},{1374, 743},

  273. { 383,1018},{1005, 358},{ 704,  86},{1301, 586},

  274. { 597, 241},{ 832, 621},{ 555, 573},{1504, 839}};

  275. 

  276. static const qcelp_vector qcelp_lspvq2[128]= {

  277. { 255, 293},{ 904, 219},{ 151,1211},{1447, 498},

  278. { 470, 253},{1559, 177},{1547, 994},{2394, 242},

  279. {  91, 813},{ 857, 590},{ 934,1326},{1889, 282},

  280. { 813, 472},{1057,1494},{ 450,3315},{2163,1895},

  281. { 538, 532},{1399, 218},{ 146,1552},{1755, 626},

  282. { 822, 202},{1299, 663},{ 706,1732},{2656, 401},

  283. { 418, 745},{ 762,1038},{ 583,1748},{1746,1285},

  284. { 527,1169},{1314, 830},{ 556,2116},{1073,2321},

  285. { 297, 570},{ 981, 403},{ 468,1103},{1740, 243},

  286. { 725, 179},{1255, 474},{1374,1362},{1922, 912},

  287. { 285, 947},{ 930, 700},{ 593,1372},{1909, 576},

  288. { 588, 916},{1110,1116},{ 224,2719},{1633,2220},

  289. { 402, 520},{1061, 448},{ 402,1352},{1499, 775},

  290. { 664, 589},{1081, 727},{ 801,2206},{2165,1157},

  291. { 566, 802},{ 911,1116},{ 306,1703},{1792, 836},

  292. { 655, 999},{1061,1038},{ 298,2089},{1110,1753},

  293. { 361, 311},{ 970, 239},{ 265,1231},{1495, 573},

  294. { 566, 262},{1569, 293},{1341,1144},{2271, 544},

  295. { 214, 877},{ 847, 719},{ 794,1384},{2067, 274},

  296. { 703, 688},{1099,1306},{ 391,2947},{2024,1670},

  297. { 471, 525},{1245, 290},{ 264,1557},{1568, 807},

  298. { 718, 399},{1193, 685},{ 883,1594},{2729, 764},

  299. { 500, 754},{ 809,1108},{ 541,1648},{1523,1385},

  300. { 614,1196},{1209, 847},{ 345,2242},{1442,1747},

  301. { 199, 560},{1092, 194},{ 349,1253},{1653, 507},

  302. { 625, 354},{1376, 431},{1187,1465},{2164, 872},

  303. { 360, 974},{1008, 698},{ 704,1346},{2114, 452},

  304. { 720, 816},{1240,1089},{ 439,2475},{1498,2040},

  305. { 336, 718},{1213, 187},{ 451,1450},{1368, 885},

  306. { 592, 578},{1131, 531},{ 861,1855},{1764,1500},

  307. { 444, 970},{ 935, 903},{ 424,1687},{1633,1102},

  308. { 793, 897},{1060, 897},{ 185,2011},{1205,1855}};

  309. 

  310. static const qcelp_vector qcelp_lspvq3[128]= {

  311. { 225, 283},{1296, 355},{ 543, 343},{2073, 274},

  312. { 204,1099},{1562, 523},{1388, 161},{2784, 274},

  313. { 112, 849},{1870, 175},{1189, 160},{1490,1088},

  314. { 969,1115},{ 659,3322},{1158,1073},{3183,1363},

  315. { 517, 223},{1740, 223},{ 704, 387},{2637, 234},

  316. { 692,1005},{1287,1610},{ 952, 532},{2393, 646},

  317. { 490, 552},{1619, 657},{ 845, 670},{1784,2280},

  318. { 191,1775},{ 272,2868},{ 942, 952},{2628,1479},

  319. { 278, 579},{1565, 218},{ 814, 180},{2379, 187},

  320. { 276,1444},{1199,1223},{1200, 349},{3009, 307},

  321. { 312, 844},{1898, 306},{ 863, 470},{1685,1241},

  322. { 513,1727},{ 711,2233},{1085, 864},{3398, 527},

  323. { 414, 440},{1356, 612},{ 964, 147},{2173, 738},

  324. { 465,1292},{ 877,1749},{1104, 689},{2105,1311},

  325. { 580, 864},{1895, 752},{ 652, 609},{1485,1699},

  326. { 514,1400},{ 386,2131},{ 933, 798},{2473, 986},

  327. { 334, 360},{1375, 398},{ 621, 276},{2183, 280},

  328. { 311,1114},{1382, 807},{1284, 175},{2605, 636},

  329. { 230, 816},{1739, 408},{1074, 176},{1619,1120},

  330. { 784,1371},{ 448,3050},{1189, 880},{3039,1165},

  331. { 424, 241},{1672, 186},{ 815, 333},{2432, 324},

  332. { 584,1029},{1137,1546},{1015, 585},{2198, 995},

  333. { 574, 581},{1746, 647},{ 733, 740},{1938,1737},

  334. { 347,1710},{ 373,2429},{ 787,1061},{2439,1438},

  335. { 185, 536},{1489, 178},{ 703, 216},{2178, 487},

  336. { 154,1421},{1414, 994},{1103, 352},{3072, 473},

  337. { 408, 819},{2055, 168},{ 998, 354},{1917,1140},

  338. { 665,1799},{ 993,2213},{1234, 631},{3003, 762},

  339. { 373, 620},{1518, 425},{ 913, 300},{1966, 836},

  340. { 402,1185},{ 948,1385},{1121, 555},{1802,1509},

  341. { 474, 886},{1888, 610},{ 739, 585},{1231,2379},

  342. { 661,1335},{ 205,2211},{ 823, 822},{2480,1179}};

  343. 

  344. static const qcelp_vector qcelp_lspvq4[64]= {

  345. { 348, 311},{ 812,1145},{ 552, 461},{1826, 263},

  346. { 601, 675},{1730, 172},{1523, 193},{2449, 277},

  347. { 334, 668},{ 805,1441},{1319, 207},{1684, 910},

  348. { 582,1318},{1403,1098},{ 979, 832},{2700,1359},

  349. { 624, 228},{1292, 979},{ 800, 195},{2226, 285},

  350. { 730, 862},{1537, 601},{1115, 509},{2720, 354},

  351. { 218,1167},{1212,1538},{1074, 247},{1674,1710},

  352. { 322,2142},{1263, 777},{ 981, 556},{2119,1710},

  353. { 193, 596},{1035, 957},{ 694, 397},{1997, 253},

  354. { 743, 603},{1584, 321},{1346, 346},{2221, 708},

  355. { 451, 732},{1040,1415},{1184, 230},{1853, 919},

  356. { 310,1661},{1625, 706},{ 856, 843},{2902, 702},

  357. { 467, 348},{1108,1048},{ 859, 306},{1964, 463},

  358. { 560,1013},{1425, 533},{1142, 634},{2391, 879},

  359. { 397,1084},{1345,1700},{ 976, 248},{1887,1189},

  360. { 644,2087},{1262, 603},{ 877, 550},{2203,1307}};

  361. 

  362. static const qcelp_vector qcelp_lspvq5[64]= {

  363. { 360, 222},{ 820,1097},{ 601, 319},{1656, 198},

  364. { 604, 513},{1552, 141},{1391, 155},{2474, 261},

  365. { 269, 785},{1463, 646},{1123, 191},{2015, 223},

  366. { 785, 844},{1202,1011},{ 980, 807},{3014, 793},

  367. { 570, 180},{1135,1382},{ 778, 256},{1901, 179},

  368. { 807, 622},{1461, 458},{1231, 178},{2028, 821},

  369. { 387, 927},{1496,1004},{ 888, 392},{2246, 341},

  370. { 295,1462},{1156, 694},{1022, 473},{2226,1364},

  371. { 210, 478},{1029,1020},{ 722, 181},{1730, 251},

  372. { 730, 488},{1465, 293},{1303, 326},{2595, 387},

  373. { 458, 584},{1569, 742},{1029, 173},{1910, 495},

  374. { 605,1159},{1268, 719},{ 973, 646},{2872, 428},

  375. { 443, 334},{ 835,1465},{ 912, 138},{1716, 442},

  376. { 620, 778},{1316, 450},{1186, 335},{1446,1665},

  377. { 486,1050},{1675,1019},{ 880, 278},{2214, 202},

  378. { 539,1564},{1142, 533},{ 984, 391},{2130,1089}};

  379. 

  380. static const qcelp_vector * const qcelp_lspvq[5] = {

  381.     qcelp_lspvq1,

  382.     qcelp_lspvq2,

  383.     qcelp_lspvq3,

  384.     qcelp_lspvq4,

  385.     qcelp_lspvq5

  386. };

  387. 

  388. /**

  389.  * the final gain scalefactor before clipping into a usable output float

  390.  */

  391. #define QCELP_SCALE 8192.

  392. 

  393. /**

  394.  * table for computing Ga (decoded linear codebook gain magnitude)

  395.  *

  396.  * @note The table could fit in int16_t in x*8 form, but it seems

  397.  *       to be slower on x86

  398.  *

  399.  * TIA/EIA/IS-733 2.4.6.2.1-3

  400.  */

  401. 

  402. static const float qcelp_g12ga[61] = {

  403.     1.000/QCELP_SCALE,   1.125/QCELP_SCALE,   1.250/QCELP_SCALE,   1.375/QCELP_SCALE,

  404.     1.625/QCELP_SCALE,   1.750/QCELP_SCALE,   2.000/QCELP_SCALE,   2.250/QCELP_SCALE,

  405.     2.500/QCELP_SCALE,   2.875/QCELP_SCALE,   3.125/QCELP_SCALE,   3.500/QCELP_SCALE,

  406.     4.000/QCELP_SCALE,   4.500/QCELP_SCALE,   5.000/QCELP_SCALE,   5.625/QCELP_SCALE,

  407.     6.250/QCELP_SCALE,   7.125/QCELP_SCALE,   8.000/QCELP_SCALE,   8.875/QCELP_SCALE,

  408.    10.000/QCELP_SCALE,  11.250/QCELP_SCALE,  12.625/QCELP_SCALE,  14.125/QCELP_SCALE,

  409.    15.875/QCELP_SCALE,  17.750/QCELP_SCALE,  20.000/QCELP_SCALE,  22.375/QCELP_SCALE,

  410.    25.125/QCELP_SCALE,  28.125/QCELP_SCALE,  31.625/QCELP_SCALE,  35.500/QCELP_SCALE,

  411.    39.750/QCELP_SCALE,  44.625/QCELP_SCALE,  50.125/QCELP_SCALE,  56.250/QCELP_SCALE,

  412.    63.125/QCELP_SCALE,  70.750/QCELP_SCALE,  79.375/QCELP_SCALE,  89.125/QCELP_SCALE,

  413.   100.000/QCELP_SCALE, 112.250/QCELP_SCALE, 125.875/QCELP_SCALE, 141.250/QCELP_SCALE,

  414.   158.500/QCELP_SCALE, 177.875/QCELP_SCALE, 199.500/QCELP_SCALE, 223.875/QCELP_SCALE,

  415.   251.250/QCELP_SCALE, 281.875/QCELP_SCALE, 316.250/QCELP_SCALE, 354.875/QCELP_SCALE,

  416.   398.125/QCELP_SCALE, 446.625/QCELP_SCALE, 501.125/QCELP_SCALE, 562.375/QCELP_SCALE,

  417.   631.000/QCELP_SCALE, 708.000/QCELP_SCALE, 794.375/QCELP_SCALE, 891.250/QCELP_SCALE,

  418.  1000.000/QCELP_SCALE};

  419. 

  420. /**

  421.  * circular codebook for rate 1 frames in x*100 form

  422.  *

  423.  * TIA/EIA/IS-733 2.4.6.1-2

  424.  */

  425. static const int16_t qcelp_rate_full_codebook[128] = {

  426.      10,  -65,  -59,   12,  110,   34, -134,  157,

  427.     104,  -84,  -34, -115,   23, -101,    3,   45,

  428.    -101,  -16,  -59,   28,  -45,  134,  -67,   22,

  429.      61,  -29,  226,  -26,  -55, -179,  157,  -51,

  430.    -220,  -93,  -37,   60,  118,   74,  -48,  -95,

  431.    -181,  111,   36,  -52, -215,   78, -112,   39,

  432.     -17,  -47, -223,   19,   12,  -98, -142,  130,

  433.      54, -127,   21,  -12,   39,  -48,   12,  128,

  434.       6, -167,   82, -102,  -79,   55,  -44,   48,

  435.     -20,  -53,    8,  -61,   11,  -70, -157, -168,

  436.      20,  -56,  -74,   78,   33,  -63, -173,   -2,

  437.     -75,  -53, -146,   77,   66,  -29,    9,  -75,

  438.      65,  119,  -43,   76,  233,   98,  125, -156,

  439.     -27,   78,   -9,  170,  176,  143, -148,   -7,

  440.      27, -136,    5,   27,   18,  139,  204,    7,

  441.    -184, -197,   52,   -3,   78, -189,    8,  -65

  442. };

  443. #define QCELP_RATE_FULL_CODEBOOK_RATIO .01

  444. 

  445. /**

  446.  * circular codebook for rate 1/2 frames in x*2 form

  447.  *

  448.  * TIA/EIA/IS-733 2.4.6.1-1

  449.  */

  450. static const int8_t qcelp_rate_half_codebook[128] = {

  451.      0, -4,  0, -3,  0,  0,  0,  0,

  452.      0,  0,  0,  0,  0,  0,  0,  0,

  453.      0, -3, -2,  0,  0,  0,  0,  0,

  454.      0,  0,  0,  0,  0,  0,  0,  5,

  455.      0,  0,  0,  0,  0,  0,  4,  0,

  456.      0,  3,  2,  0,  3,  4,  0,  0,

  457.      0,  0,  0,  0,  0,  0,  0,  0,

  458.      0,  0,  0,  0,  0,  3,  0,  0,

  459.     -3,  3,  0,  0, -2,  0,  3,  0,

  460.      0,  0,  0,  0,  0,  0, -5,  0,

  461.      0,  0,  0,  3,  0,  0,  0,  3,

  462.      0,  0,  0,  0,  0,  0,  0,  4,

  463.      0,  0,  0,  0,  0,  0,  0,  0,

  464.      0,  3,  6, -3, -4,  0, -3, -3,

  465.      3, -3,  0,  0,  0,  0,  0,  0,

  466.      0,  0,  0,  0,  0,  0,  0,  0

  467. };

  468. #define QCELP_RATE_HALF_CODEBOOK_RATIO 0.5

  469. 

  470. /**

  471.  * sqrt(1.887) is the maximum of the pseudorandom

  472.  * white sequence used to generate the scaled codebook

  473.  * vector for framerate 1/4.

  474.  *

  475.  * TIA/EIA/IS-733 2.4.8.1.2

  476.  */

  477. #define QCELP_SQRT1887 1.373681186

  478. 

  479. /**

  480.  * table for impulse response of BPF used to filter

  481.  * the white excitation for framerate 1/4 synthesis

  482.  *

  483.  * Only half the tables are needed because of symetry.

  484.  *

  485.  * TIA/EIA/IS-733 2.4.8.1.2-1.1

  486.  */

  487. static const double qcelp_rnd_fir_coefs[11] = {

  488.   -1.344519e-1, 1.735384e-2, -6.905826e-2, 2.434368e-2,

  489.   -8.210701e-2, 3.041388e-2, -9.251384e-2, 3.501983e-2,

  490.   -9.918777e-2, 3.749518e-2,  8.985137e-1

  491. };

  492. 

  493. #endif /* AVCODEC_QCELPDATA_H */