1 /* 2 * RealAudio 2.0 (28.8K) 3 * Copyright (c) 2003 The FFmpeg project 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_RA288_H 23 #define AVCODEC_RA288_H 24 25 #include <stdint.h> 26 #include "libavutil/common.h" 27 #include "libavutil/mem_internal.h" 28 29 static const float amptable[8]={ 30 0.515625, 0.90234375, 1.57910156, 2.76342773, 31 -0.515625, -0.90234375, -1.57910156, -2.76342773 32 }; 33 34 static const int16_t codetable[128][5]={ 35 { 668, -2950, -1254, -1790, -2553}, { -5032, -4577, -1045, 2908, 3318}, 36 { -2819, -2677, -948, -2825, -4450}, { -6679, -340, 1482, -1276, 1262}, 37 { -562, -6757, 1281, 179, -1274}, { -2512, -7130, -4925, 6913, 2411}, 38 { -2478, -156, 4683, -3873, 0}, { -8208, 2140, -478, -2785, 533}, 39 { 1889, 2759, 1381, -6955, -5913}, { 5082, -2460, -5778, 1797, 568}, 40 { -2208, -3309, -4523, -6236, -7505}, { -2719, 4358, -2988, -1149, 2664}, 41 { 1259, 995, 2711, -2464,-10390}, { 1722, -7569, -2742, 2171, -2329}, 42 { 1032, 747, -858, -7946,-12843}, { 3106, 4856, -4193, -2541, 1035}, 43 { 1862, -960, -6628, 410, 5882}, { -2493, -2628, -4000, -60, 7202}, 44 { -2672, 1446, 1536, -3831, 1233}, { -5302, 6912, 1589, -4187, 3665}, 45 { -3456, -8170, -7709, 1384, 4698}, { -4699, -6209,-11176, 8104, 16830}, 46 { 930, 7004, 1269, -8977, 2567}, { 4649, 11804, 3441, -5657, 1199}, 47 { 2542, -183, -8859, -7976, 3230}, { -2872, -2011, -9713, -8385, 12983}, 48 { 3086, 2140, -3680, -9643, -2896}, { -7609, 6515, -2283, -2522, 6332}, 49 { -3333, -5620, -9130,-11131, 5543}, { -407, -6721,-17466, -2889, 11568}, 50 { 3692, 6796, -262,-10846, -1856}, { 7275, 13404, -2989,-10595, 4936}, 51 { 244, -2219, 2656, 3776, -5412}, { -4043, -5934, 2131, 863, -2866}, 52 { -3302, 1743, -2006, -128, -2052}, { -6361, 3342, -1583, -21, 1142}, 53 { -3837, -1831, 6397, 2545, -2848}, { -9332, -6528, 5309, 1986, -2245}, 54 { -4490, 748, 1935, -3027, -493}, { -9255, 5366, 3193, -4493, 1784}, 55 { 4784, -370, 1866, 1057, -1889}, { 7342, -2690, -2577, 676, -611}, 56 { -502, 2235, -1850, -1777, -2049}, { 1011, 3880, -2465, 2209, -152}, 57 { 2592, 2829, 5588, 2839, -7306}, { -3049, -4918, 5955, 9201, -4447}, 58 { 697, 3908, 5798, -4451, -4644}, { -2121, 5444, -2570, 321, -1202}, 59 { 2846, -2086, 3532, 566, -708}, { -4279, 950, 4980, 3749, 452}, 60 { -2484, 3502, 1719, -170, 238}, { -3435, 263, 2114, -2005, 2361}, 61 { -7338, -1208, 9347, -1216, -4013}, {-13498, -439, 8028, -4232, 361}, 62 { -3729, 5433, 2004, -4727, -1259}, { -3986, 7743, 8429, -3691, -987}, 63 { 5198, -423, 1150, -1281, 816}, { 7409, 4109, -3949, 2690, 30}, 64 { 1246, 3055, -35, -1370, -246}, { -1489, 5635, -678, -2627, 3170}, 65 { 4830, -4585, 2008, -1062, 799}, { -129, 717, 4594, 14937, 10706}, 66 { 417, 2759, 1850, -5057, -1153}, { -3887, 7361, -5768, 4285, 666}, 67 { 1443, -938, 20, -2119, -1697}, { -3712, -3402, -2212, 110, 2136}, 68 { -2952, 12, -1568, -3500, -1855}, { -1315, -1731, 1160, -558, 1709}, 69 { 88, -4569, 194, -454, -2957}, { -2839, -1666, -273, 2084, -155}, 70 { -189, -2376, 1663, -1040, -2449}, { -2842, -1369, 636, -248, -2677}, 71 { 1517, 79, -3013, -3669, -973}, { 1913, -2493, -5312, -749, 1271}, 72 { -2903, -3324, -3756, -3690, -1829}, { -2913, -1547, -2760, -1406, 1124}, 73 { 1844, -1834, 456, 706, -4272}, { 467, -4256, -1909, 1521, 1134}, 74 { -127, -994, -637, -1491, -6494}, { 873, -2045, -3828, -2792, -578}, 75 { 2311, -1817, 2632, -3052, 1968}, { 641, 1194, 1893, 4107, 6342}, 76 { -45, 1198, 2160, -1449, 2203}, { -2004, 1713, 3518, 2652, 4251}, 77 { 2936, -3968, 1280, 131, -1476}, { 2827, 8, -1928, 2658, 3513}, 78 { 3199, -816, 2687, -1741, -1407}, { 2948, 4029, 394, -253, 1298}, 79 { 4286, 51, -4507, -32, -659}, { 3903, 5646, -5588, -2592, 5707}, 80 { -606, 1234, -1607, -5187, 664}, { -525, 3620, -2192, -2527, 1707}, 81 { 4297, -3251, -2283, 812, -2264}, { 5765, 528, -3287, 1352, 1672}, 82 { 2735, 1241, -1103, -3273, -3407}, { 4033, 1648, -2965, -1174, 1444}, 83 { 74, 918, 1999, 915, -1026}, { -2496, -1605, 2034, 2950, 229}, 84 { -2168, 2037, 15, -1264, -208}, { -3552, 1530, 581, 1491, 962}, 85 { -2613, -2338, 3621, -1488, -2185}, { -1747, 81, 5538, 1432, -2257}, 86 { -1019, 867, 214, -2284, -1510}, { -1684, 2816, -229, 2551, -1389}, 87 { 2707, 504, 479, 2783, -1009}, { 2517, -1487, -1596, 621, 1929}, 88 { -148, 2206, -4288, 1292, -1401}, { -527, 1243, -2731, 1909, 1280}, 89 { 2149, -1501, 3688, 610, -4591}, { 3306, -3369, 1875, 3636, -1217}, 90 { 2574, 2513, 1449, -3074, -4979}, { 814, 1826, -2497, 4234, -4077}, 91 { 1664, -220, 3418, 1002, 1115}, { 781, 1658, 3919, 6130, 3140}, 92 { 1148, 4065, 1516, 815, 199}, { 1191, 2489, 2561, 2421, 2443}, 93 { 770, -5915, 5515, -368, -3199}, { 1190, 1047, 3742, 6927, -2089}, 94 { 292, 3099, 4308, -758, -2455}, { 523, 3921, 4044, 1386, 85}, 95 { 4367, 1006, -1252, -1466, -1383}, { 3852, 1579, -77, 2064, 868}, 96 { 5109, 2919, -202, 359, -509}, { 3650, 3206, 2303, 1693, 1296}, 97 { 2905, -3907, 229, -1196, -2332}, { 5977, -3585, 805, 3825, -3138}, 98 { 3746, -606, 53, -269, -3301}, { 606, 2018, -1316, 4064, 398} 99 }; 100 101 DECLARE_ALIGNED(32, static const float, syn_window)[FFALIGN(111, 16)]={ 102 0.576690972, 0.580838025, 0.585013986, 0.589219987, 0.59345597, 0.597723007, 103 0.602020264, 0.606384277, 0.610748291, 0.615142822, 0.619598389, 0.624084473, 104 0.628570557, 0.633117676, 0.637695313, 0.642272949, 0.646911621, 0.651580811, 105 0.656280518, 0.66104126, 0.665802002, 0.670593262, 0.675445557, 0.680328369, 106 0.685241699, 0.690185547, 0.695159912, 0.700164795, 0.705230713, 0.710327148, 107 0.715454102, 0.720611572, 0.725830078, 0.731048584, 0.736328125, 0.741638184, 108 0.747009277, 0.752380371, 0.7578125, 0.763305664, 0.768798828, 0.774353027, 109 0.779937744, 0.785583496, 0.791229248, 0.796936035, 0.802703857, 0.808502197, 110 0.814331055, 0.820220947, 0.826141357, 0.832092285, 0.838104248, 0.844146729, 111 0.850250244, 0.856384277, 0.862548828, 0.868774414, 0.875061035, 0.881378174, 112 0.88772583, 0.894134521, 0.900604248, 0.907104492, 0.913635254, 0.920227051, 113 0.926879883, 0.933563232, 0.940307617, 0.94708252, 0.953918457, 0.96081543, 114 0.96774292, 0.974731445, 0.981781006, 0.988861084, 0.994842529, 0.998565674, 115 0.999969482, 0.99911499, 0.996002197, 0.990600586, 0.982910156, 0.973022461, 116 0.960876465, 0.946533203, 0.930053711, 0.911437988, 0.89074707, 0.868041992, 117 0.843322754, 0.816680908, 0.788208008, 0.757904053, 0.725891113, 0.692199707, 118 0.656921387, 0.620178223, 0.582000732, 0.542480469, 0.501739502, 0.459838867, 119 0.416900635, 0.373016357, 0.328277588, 0.282775879, 0.236663818, 0.189971924, 120 0.142852783, 0.0954284668,0.0477600098 121 }; 122 123 DECLARE_ALIGNED(32, static const float, gain_window)[FFALIGN(38, 16)]={ 124 0.505699992, 0.524200022, 0.54339999, 0.563300014, 0.583953857, 0.60534668, 125 0.627502441, 0.650482178, 0.674316406, 0.699005127, 0.724578857, 0.75112915, 126 0.778625488, 0.807128906, 0.836669922, 0.86730957, 0.899078369, 0.932006836, 127 0.961486816, 0.982757568, 0.995635986, 1, 0.995819092, 0.983154297, 128 0.96206665, 0.932769775, 0.895507813, 0.850585938, 0.798400879, 0.739379883, 129 0.674072266, 0.602996826, 0.526763916, 0.446014404, 0.361480713, 0.273834229, 130 0.183868408, 0.0923461914 131 }; 132 133 /** synthesis bandwidth broadening table */ 134 DECLARE_ALIGNED(32, static const float, syn_bw_tab)[FFALIGN(36, 16)] = { 135 0.98828125, 0.976699829, 0.965254128, 0.953942537, 0.942763507, 0.931715488, 136 0.920796931, 0.910006344, 0.899342179, 0.888803005, 0.878387332, 0.868093729, 137 0.857920766, 0.847867012, 0.837931097, 0.828111589, 0.818407178, 0.808816493, 138 0.799338162, 0.789970934, 0.780713439, 0.771564424, 0.762522638, 0.753586829, 139 0.744755745, 0.736028135, 0.727402806, 0.718878567, 0.710454226, 0.702128589, 140 0.693900526, 0.685768902, 0.677732527, 0.669790328, 0.66194123, 0.654184103 141 }; 142 143 /** gain bandwidth broadening table */ 144 DECLARE_ALIGNED(32, static const float, gain_bw_tab)[FFALIGN(10, 16)] = { 145 0.90625, 0.821289063, 0.74432373, 0.674499512, 0.61126709, 146 0.553955078, 0.50201416, 0.454956055, 0.41229248, 0.373657227 147 }; 148 149 #endif /* AVCODEC_RA288_H */ 150