Libav
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00001 /* 00002 * RealAudio 2.0 (28.8K) 00003 * Copyright (c) 2003 the ffmpeg project 00004 * 00005 * This file is part of FFmpeg. 00006 * 00007 * FFmpeg is free software; you can redistribute it and/or 00008 * modify it under the terms of the GNU Lesser General Public 00009 * License as published by the Free Software Foundation; either 00010 * version 2.1 of the License, or (at your option) any later version. 00011 * 00012 * FFmpeg is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00015 * Lesser General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU Lesser General Public 00018 * License along with FFmpeg; if not, write to the Free Software 00019 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00020 */ 00021 00022 #ifndef AVCODEC_RA288_H 00023 #define AVCODEC_RA288_H 00024 00025 #include <stdint.h> 00026 00027 static const float amptable[8]={ 00028 0.515625, 0.90234375, 1.57910156, 2.76342773, 00029 -0.515625, -0.90234375, -1.57910156, -2.76342773 00030 }; 00031 00032 static const int16_t codetable[128][5]={ 00033 { 668, -2950, -1254, -1790, -2553}, { -5032, -4577, -1045, 2908, 3318}, 00034 { -2819, -2677, -948, -2825, -4450}, { -6679, -340, 1482, -1276, 1262}, 00035 { -562, -6757, 1281, 179, -1274}, { -2512, -7130, -4925, 6913, 2411}, 00036 { -2478, -156, 4683, -3873, 0}, { -8208, 2140, -478, -2785, 533}, 00037 { 1889, 2759, 1381, -6955, -5913}, { 5082, -2460, -5778, 1797, 568}, 00038 { -2208, -3309, -4523, -6236, -7505}, { -2719, 4358, -2988, -1149, 2664}, 00039 { 1259, 995, 2711, -2464,-10390}, { 1722, -7569, -2742, 2171, -2329}, 00040 { 1032, 747, -858, -7946,-12843}, { 3106, 4856, -4193, -2541, 1035}, 00041 { 1862, -960, -6628, 410, 5882}, { -2493, -2628, -4000, -60, 7202}, 00042 { -2672, 1446, 1536, -3831, 1233}, { -5302, 6912, 1589, -4187, 3665}, 00043 { -3456, -8170, -7709, 1384, 4698}, { -4699, -6209,-11176, 8104, 16830}, 00044 { 930, 7004, 1269, -8977, 2567}, { 4649, 11804, 3441, -5657, 1199}, 00045 { 2542, -183, -8859, -7976, 3230}, { -2872, -2011, -9713, -8385, 12983}, 00046 { 3086, 2140, -3680, -9643, -2896}, { -7609, 6515, -2283, -2522, 6332}, 00047 { -3333, -5620, -9130,-11131, 5543}, { -407, -6721,-17466, -2889, 11568}, 00048 { 3692, 6796, -262,-10846, -1856}, { 7275, 13404, -2989,-10595, 4936}, 00049 { 244, -2219, 2656, 3776, -5412}, { -4043, -5934, 2131, 863, -2866}, 00050 { -3302, 1743, -2006, -128, -2052}, { -6361, 3342, -1583, -21, 1142}, 00051 { -3837, -1831, 6397, 2545, -2848}, { -9332, -6528, 5309, 1986, -2245}, 00052 { -4490, 748, 1935, -3027, -493}, { -9255, 5366, 3193, -4493, 1784}, 00053 { 4784, -370, 1866, 1057, -1889}, { 7342, -2690, -2577, 676, -611}, 00054 { -502, 2235, -1850, -1777, -2049}, { 1011, 3880, -2465, 2209, -152}, 00055 { 2592, 2829, 5588, 2839, -7306}, { -3049, -4918, 5955, 9201, -4447}, 00056 { 697, 3908, 5798, -4451, -4644}, { -2121, 5444, -2570, 321, -1202}, 00057 { 2846, -2086, 3532, 566, -708}, { -4279, 950, 4980, 3749, 452}, 00058 { -2484, 3502, 1719, -170, 238}, { -3435, 263, 2114, -2005, 2361}, 00059 { -7338, -1208, 9347, -1216, -4013}, {-13498, -439, 8028, -4232, 361}, 00060 { -3729, 5433, 2004, -4727, -1259}, { -3986, 7743, 8429, -3691, -987}, 00061 { 5198, -423, 1150, -1281, 816}, { 7409, 4109, -3949, 2690, 30}, 00062 { 1246, 3055, -35, -1370, -246}, { -1489, 5635, -678, -2627, 3170}, 00063 { 4830, -4585, 2008, -1062, 799}, { -129, 717, 4594, 14937, 10706}, 00064 { 417, 2759, 1850, -5057, -1153}, { -3887, 7361, -5768, 4285, 666}, 00065 { 1443, -938, 20, -2119, -1697}, { -3712, -3402, -2212, 110, 2136}, 00066 { -2952, 12, -1568, -3500, -1855}, { -1315, -1731, 1160, -558, 1709}, 00067 { 88, -4569, 194, -454, -2957}, { -2839, -1666, -273, 2084, -155}, 00068 { -189, -2376, 1663, -1040, -2449}, { -2842, -1369, 636, -248, -2677}, 00069 { 1517, 79, -3013, -3669, -973}, { 1913, -2493, -5312, -749, 1271}, 00070 { -2903, -3324, -3756, -3690, -1829}, { -2913, -1547, -2760, -1406, 1124}, 00071 { 1844, -1834, 456, 706, -4272}, { 467, -4256, -1909, 1521, 1134}, 00072 { -127, -994, -637, -1491, -6494}, { 873, -2045, -3828, -2792, -578}, 00073 { 2311, -1817, 2632, -3052, 1968}, { 641, 1194, 1893, 4107, 6342}, 00074 { -45, 1198, 2160, -1449, 2203}, { -2004, 1713, 3518, 2652, 4251}, 00075 { 2936, -3968, 1280, 131, -1476}, { 2827, 8, -1928, 2658, 3513}, 00076 { 3199, -816, 2687, -1741, -1407}, { 2948, 4029, 394, -253, 1298}, 00077 { 4286, 51, -4507, -32, -659}, { 3903, 5646, -5588, -2592, 5707}, 00078 { -606, 1234, -1607, -5187, 664}, { -525, 3620, -2192, -2527, 1707}, 00079 { 4297, -3251, -2283, 812, -2264}, { 5765, 528, -3287, 1352, 1672}, 00080 { 2735, 1241, -1103, -3273, -3407}, { 4033, 1648, -2965, -1174, 1444}, 00081 { 74, 918, 1999, 915, -1026}, { -2496, -1605, 2034, 2950, 229}, 00082 { -2168, 2037, 15, -1264, -208}, { -3552, 1530, 581, 1491, 962}, 00083 { -2613, -2338, 3621, -1488, -2185}, { -1747, 81, 5538, 1432, -2257}, 00084 { -1019, 867, 214, -2284, -1510}, { -1684, 2816, -229, 2551, -1389}, 00085 { 2707, 504, 479, 2783, -1009}, { 2517, -1487, -1596, 621, 1929}, 00086 { -148, 2206, -4288, 1292, -1401}, { -527, 1243, -2731, 1909, 1280}, 00087 { 2149, -1501, 3688, 610, -4591}, { 3306, -3369, 1875, 3636, -1217}, 00088 { 2574, 2513, 1449, -3074, -4979}, { 814, 1826, -2497, 4234, -4077}, 00089 { 1664, -220, 3418, 1002, 1115}, { 781, 1658, 3919, 6130, 3140}, 00090 { 1148, 4065, 1516, 815, 199}, { 1191, 2489, 2561, 2421, 2443}, 00091 { 770, -5915, 5515, -368, -3199}, { 1190, 1047, 3742, 6927, -2089}, 00092 { 292, 3099, 4308, -758, -2455}, { 523, 3921, 4044, 1386, 85}, 00093 { 4367, 1006, -1252, -1466, -1383}, { 3852, 1579, -77, 2064, 868}, 00094 { 5109, 2919, -202, 359, -509}, { 3650, 3206, 2303, 1693, 1296}, 00095 { 2905, -3907, 229, -1196, -2332}, { 5977, -3585, 805, 3825, -3138}, 00096 { 3746, -606, 53, -269, -3301}, { 606, 2018, -1316, 4064, 398} 00097 }; 00098 00099 static const float syn_window[111]={ 00100 0.576690972, 0.580838025, 0.585013986, 0.589219987, 0.59345597, 0.597723007, 00101 0.602020264, 0.606384277, 0.610748291, 0.615142822, 0.619598389, 0.624084473, 00102 0.628570557, 0.633117676, 0.637695313, 0.642272949, 0.646911621, 0.651580811, 00103 0.656280518, 0.66104126, 0.665802002, 0.670593262, 0.675445557, 0.680328369, 00104 0.685241699, 0.690185547, 0.695159912, 0.700164795, 0.705230713, 0.710327148, 00105 0.715454102, 0.720611572, 0.725830078, 0.731048584, 0.736328125, 0.741638184, 00106 0.747009277, 0.752380371, 0.7578125, 0.763305664, 0.768798828, 0.774353027, 00107 0.779937744, 0.785583496, 0.791229248, 0.796936035, 0.802703857, 0.808502197, 00108 0.814331055, 0.820220947, 0.826141357, 0.832092285, 0.838104248, 0.844146729, 00109 0.850250244, 0.856384277, 0.862548828, 0.868774414, 0.875061035, 0.881378174, 00110 0.88772583, 0.894134521, 0.900604248, 0.907104492, 0.913635254, 0.920227051, 00111 0.926879883, 0.933563232, 0.940307617, 0.94708252, 0.953918457, 0.96081543, 00112 0.96774292, 0.974731445, 0.981781006, 0.988861084, 0.994842529, 0.998565674, 00113 0.999969482, 0.99911499, 0.996002197, 0.990600586, 0.982910156, 0.973022461, 00114 0.960876465, 0.946533203, 0.930053711, 0.911437988, 0.89074707, 0.868041992, 00115 0.843322754, 0.816680908, 0.788208008, 0.757904053, 0.725891113, 0.692199707, 00116 0.656921387, 0.620178223, 0.582000732, 0.542480469, 0.501739502, 0.459838867, 00117 0.416900635, 0.373016357, 0.328277588, 0.282775879, 0.236663818, 0.189971924, 00118 0.142852783, 0.0954284668,0.0477600098 00119 }; 00120 00121 static const float gain_window[38]={ 00122 0.505699992, 0.524200022, 0.54339999, 0.563300014, 0.583953857, 0.60534668, 00123 0.627502441, 0.650482178, 0.674316406, 0.699005127, 0.724578857, 0.75112915, 00124 0.778625488, 0.807128906, 0.836669922, 0.86730957, 0.899078369, 0.932006836, 00125 0.961486816, 0.982757568, 0.995635986, 1, 0.995819092, 0.983154297, 00126 0.96206665, 0.932769775, 0.895507813, 0.850585938, 0.798400879, 0.739379883, 00127 0.674072266, 0.602996826, 0.526763916, 0.446014404, 0.361480713, 0.273834229, 00128 0.183868408, 0.0923461914 00129 }; 00130 00132 static const float syn_bw_tab[36]={ 00133 0.98828125, 0.976699829, 0.965254128, 0.953942537, 0.942763507, 0.931715488, 00134 0.920796931, 0.910006344, 0.899342179, 0.888803005, 0.878387332, 0.868093729, 00135 0.857920766, 0.847867012, 0.837931097, 0.828111589, 0.818407178, 0.808816493, 00136 0.799338162, 0.789970934, 0.780713439, 0.771564424, 0.762522638, 0.753586829, 00137 0.744755745, 0.736028135, 0.727402806, 0.718878567, 0.710454226, 0.702128589, 00138 0.693900526, 0.685768902, 0.677732527, 0.669790328, 0.66194123, 0.654184103 00139 }; 00140 00142 static const float gain_bw_tab[10]={ 00143 0.90625, 0.821289063, 0.74432373, 0.674499512, 0.61126709, 00144 0.553955078, 0.50201416, 0.454956055, 0.41229248, 0.373657227 00145 }; 00146 00147 #endif /* AVCODEC_RA288_H */