1 /* 2 * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 /* 12 * pitch_gain_tables.c 13 * 14 * This file contains tables for the pitch filter side-info in the entropy coder. 15 * 16 */ 17 18 #include "pitch_gain_tables.h" 19 20 21 /********************* Pitch Filter Gain Coefficient Tables ************************/ 22 23 /* cdf for quantized pitch filter gains */ 24 const uint16_t WebRtcIsacfix_kPitchGainCdf[255] = { 25 0, 2, 4, 6, 64, 901, 903, 905, 16954, 16956, 26 16961, 17360, 17362, 17364, 17366, 17368, 17370, 17372, 17374, 17411, 27 17514, 17516, 17583, 18790, 18796, 18802, 20760, 20777, 20782, 21722, 28 21724, 21728, 21738, 21740, 21742, 21744, 21746, 21748, 22224, 22227, 29 22230, 23214, 23229, 23239, 25086, 25108, 25120, 26088, 26094, 26098, 30 26175, 26177, 26179, 26181, 26183, 26185, 26484, 26507, 26522, 27705, 31 27731, 27750, 29767, 29799, 29817, 30866, 30883, 30885, 31025, 31029, 32 31031, 31033, 31035, 31037, 31114, 31126, 31134, 32687, 32722, 32767, 33 35718, 35742, 35757, 36943, 36952, 36954, 37115, 37128, 37130, 37132, 34 37134, 37136, 37143, 37145, 37152, 38843, 38863, 38897, 47458, 47467, 35 47474, 49040, 49061, 49063, 49145, 49157, 49159, 49161, 49163, 49165, 36 49167, 49169, 49171, 49757, 49770, 49782, 61333, 61344, 61346, 62860, 37 62883, 62885, 62887, 62889, 62891, 62893, 62895, 62897, 62899, 62901, 38 62903, 62905, 62907, 62909, 65496, 65498, 65500, 65521, 65523, 65525, 39 65527, 65529, 65531, 65533, 65535, 65535, 65535, 65535, 65535, 65535, 40 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 41 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 42 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 43 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 44 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 45 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 46 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 47 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 48 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 49 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 50 65535, 65535, 65535, 65535, 65535 51 }; 52 53 /* index limits and ranges */ 54 const int16_t WebRtcIsacfix_kLowerlimiGain[3] = { 55 -7, -2, -1 56 }; 57 58 const int16_t WebRtcIsacfix_kUpperlimitGain[3] = { 59 0, 3, 1 60 }; 61 62 const uint16_t WebRtcIsacfix_kMultsGain[2] = { 63 18, 3 64 }; 65 66 /* size of cdf table */ 67 const uint16_t WebRtcIsacfix_kCdfTableSizeGain[1] = { 68 256 69 }; 70 71 /* mean values of pitch filter gains in FIXED point Q12 */ 72 const int16_t WebRtcIsacfix_kPitchGain1[144] = { 73 843, 1092, 1336, 1222, 1405, 1656, 1500, 1815, 1843, 1838, 1839, 74 1843, 1843, 1843, 1843, 1843, 1843, 1843, 814, 846, 1092, 1013, 75 1174, 1383, 1391, 1511, 1584, 1734, 1753, 1843, 1843, 1843, 1843, 76 1843, 1843, 1843, 524, 689, 777, 845, 947, 1069, 1090, 1263, 77 1380, 1447, 1559, 1676, 1645, 1749, 1843, 1843, 1843, 1843, 81, 78 477, 563, 611, 706, 806, 849, 1012, 1192, 1128, 1330, 1489, 79 1425, 1576, 1826, 1741, 1843, 1843, 0, 290, 305, 356, 488, 80 575, 602, 741, 890, 835, 1079, 1196, 1182, 1376, 1519, 1506, 81 1680, 1843, 0, 47, 97, 69, 289, 381, 385, 474, 617, 82 664, 803, 1079, 935, 1160, 1269, 1265, 1506, 1741, 0, 0, 83 0, 0, 112, 120, 190, 283, 442, 343, 526, 809, 684, 84 935, 1134, 1020, 1265, 1506, 0, 0, 0, 0, 0, 0, 85 0, 111, 256, 87, 373, 597, 430, 684, 935, 770, 1020, 86 1265 87 }; 88 89 const int16_t WebRtcIsacfix_kPitchGain2[144] = { 90 1760, 1525, 1285, 1747, 1671, 1393, 1843, 1826, 1555, 1843, 1784, 91 1606, 1843, 1843, 1711, 1843, 1843, 1814, 1389, 1275, 1040, 1564, 92 1414, 1252, 1610, 1495, 1343, 1753, 1592, 1405, 1804, 1720, 1475, 93 1843, 1814, 1581, 1208, 1061, 856, 1349, 1148, 994, 1390, 1253, 94 1111, 1495, 1343, 1178, 1770, 1465, 1234, 1814, 1581, 1342, 1040, 95 793, 713, 1053, 895, 737, 1128, 1003, 861, 1277, 1094, 981, 96 1475, 1192, 1019, 1581, 1342, 1098, 855, 570, 483, 833, 648, 97 540, 948, 744, 572, 1009, 844, 636, 1234, 934, 685, 1342, 98 1217, 984, 537, 318, 124, 603, 423, 350, 687, 479, 322, 99 791, 581, 430, 987, 671, 488, 1098, 849, 597, 283, 27, 100 0, 397, 222, 38, 513, 271, 124, 624, 325, 157, 737, 101 484, 233, 849, 597, 343, 27, 0, 0, 141, 0, 0, 102 256, 69, 0, 370, 87, 0, 484, 229, 0, 597, 343, 103 87 104 }; 105 106 const int16_t WebRtcIsacfix_kPitchGain3[144] = { 107 1843, 1843, 1711, 1843, 1818, 1606, 1843, 1827, 1511, 1814, 1639, 108 1393, 1760, 1525, 1285, 1656, 1419, 1176, 1835, 1718, 1475, 1841, 109 1650, 1387, 1648, 1498, 1287, 1600, 1411, 1176, 1522, 1299, 1040, 110 1419, 1176, 928, 1773, 1461, 1128, 1532, 1355, 1202, 1429, 1260, 111 1115, 1398, 1151, 1025, 1172, 1080, 790, 1176, 928, 677, 1475, 112 1147, 1019, 1276, 1096, 922, 1214, 1010, 901, 1057, 893, 800, 113 1040, 796, 734, 928, 677, 424, 1137, 897, 753, 1120, 830, 114 710, 875, 751, 601, 795, 642, 583, 790, 544, 475, 677, 115 474, 140, 987, 750, 482, 697, 573, 450, 691, 487, 303, 116 661, 394, 332, 537, 303, 220, 424, 168, 0, 737, 484, 117 229, 624, 348, 153, 441, 261, 136, 397, 166, 51, 283, 118 27, 0, 168, 0, 0, 484, 229, 0, 370, 57, 0, 119 256, 43, 0, 141, 0, 0, 27, 0, 0, 0, 0, 120 0 121 }; 122 123 124 const int16_t WebRtcIsacfix_kPitchGain4[144] = { 125 1843, 1843, 1843, 1843, 1841, 1843, 1500, 1821, 1843, 1222, 1434, 126 1656, 843, 1092, 1336, 504, 757, 1007, 1843, 1843, 1843, 1838, 127 1791, 1843, 1265, 1505, 1599, 965, 1219, 1425, 730, 821, 1092, 128 249, 504, 757, 1783, 1819, 1843, 1351, 1567, 1727, 1096, 1268, 129 1409, 805, 961, 1131, 444, 670, 843, 0, 249, 504, 1425, 130 1655, 1743, 1096, 1324, 1448, 822, 1019, 1199, 490, 704, 867, 131 81, 450, 555, 0, 0, 249, 1247, 1428, 1530, 881, 1073, 132 1283, 610, 759, 939, 278, 464, 645, 0, 200, 270, 0, 133 0, 0, 935, 1163, 1410, 528, 790, 1068, 377, 499, 717, 134 173, 240, 274, 0, 43, 62, 0, 0, 0, 684, 935, 135 1182, 343, 551, 735, 161, 262, 423, 0, 55, 27, 0, 136 0, 0, 0, 0, 0, 430, 684, 935, 87, 377, 597, 137 0, 46, 256, 0, 0, 0, 0, 0, 0, 0, 0, 138 0 139 }; 140 141 142 143 /* transform matrix in Q12*/ 144 const int16_t WebRtcIsacfix_kTransform[4][4] = { 145 { -2048, -2048, -2048, -2048 }, 146 { 2748, 916, -916, -2748 }, 147 { 2048, -2048, -2048, 2048 }, 148 { 916, -2748, 2748, -916 } 149 }; 150