mpv/libao2/filter.h

/*=============================================================================
//	
//  This file is part of mplayer.
//
//  mplayer is free software; you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation; either version 2 of the License, or
//  (at your option) any later version.
//
//  mplayer is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with mplayer; if not, write to the Free Software
//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
//  Copyright 2001 Anders Johansson ajh@atri.curtin.edu.au
//
//=============================================================================
*/

/* Polyphase filters. Designed using window method and kaiser window
   with beta=10. */

#define W4 { \
0, 36, 32767, -35, 0, 113, 32756, -103, \
0, 193, 32733, -167, 0, 278, 32699, -227, \
0, 367, 32654, -282, -1, 461, 32597, -335, \
-1, 560, 32530, -383, -1, 664, 32451, -429, \
-1, 772, 32361, -470, -2, 886, 32260, -509, \
-2, 1004, 32148, -544, -2, 1128, 32026, -577, \
-3, 1257, 31892, -606, -4, 1392, 31749, -633, \
-4, 1532, 31594, -657, -5, 1677, 31430, -678, \
-6, 1828, 31255, -697, -7, 1985, 31070, -713, \
-8, 2147, 30876, -727, -9, 2315, 30671, -739, \
-10, 2489, 30457, -749, -11, 2668, 30234, -756, \
-13, 2854, 30002, -762, -14, 3045, 29761, -766, \
-16, 3243, 29511, -769, -18, 3446, 29252, -769, \
-20, 3656, 28985, -769, -22, 3871, 28710, -766, \
-25, 4093, 28427, -763, -27, 4320, 28137, -758, \
-30, 4553, 27839, -752, -33, 4793, 27534, -745, \
-36, 5038, 27222, -737, -39, 5290, 26904, -727, \
-43, 5547, 26579, -717, -47, 5811, 26248, -707, \
-51, 6080, 25911, -695, -55, 6355, 25569, -683, \
-60, 6636, 25221, -670, -65, 6922, 24868, -657, \
-70, 7214, 24511, -643, -76, 7512, 24149, -628, \
-81, 7815, 23782, -614, -87, 8124, 23412, -599, \
-94, 8437, 23038, -583, -101, 8757, 22661, -568, \
-108, 9081, 22281, -552, -115, 9410, 21898, -537, \
-123, 9744, 21513, -521, -131, 10082, 21125, -505, \
-139, 10425, 20735, -489, -148, 10773, 20344, -473, \
-157, 11125, 19951, -457, -166, 11481, 19557, -441, \
-176, 11841, 19162, -426, -186, 12205, 18767, -410, \
-197, 12572, 18372, -395, -208, 12942, 17976, -380, \
-219, 13316, 17581, -365, -231, 13693, 17186, -350, \
-243, 14073, 16791, -336, -255, 14455, 16398, -321, \
-268, 14840, 16006, -307, -281, 15227, 15616, -294, \
-294, 15616, 15227, -281, -307, 16006, 14840, -268, \
-321, 16398, 14455, -255, -336, 16791, 14073, -243, \
-350, 17186, 13693, -231, -365, 17581, 13316, -219, \
-380, 17976, 12942, -208, -395, 18372, 12572, -197, \
-410, 18767, 12205, -186, -426, 19162, 11841, -176, \
-441, 19557, 11481, -166, -457, 19951, 11125, -157, \
-473, 20344, 10773, -148, -489, 20735, 10425, -139, \
-505, 21125, 10082, -131, -521, 21513, 9744, -123, \
-537, 21898, 9410, -115, -552, 22281, 9081, -108, \
-568, 22661, 8757, -101, -583, 23038, 8437, -94, \
-599, 23412, 8124, -87, -614, 23782, 7815, -81, \
-628, 24149, 7512, -76, -643, 24511, 7214, -70, \
-657, 24868, 6922, -65, -670, 25221, 6636, -60, \
-683, 25569, 6355, -55, -695, 25911, 6080, -51, \
-707, 26248, 5811, -47, -717, 26579, 5547, -43, \
-727, 26904, 5290, -39, -737, 27222, 5038, -36, \
-745, 27534, 4793, -33, -752, 27839, 4553, -30, \
-758, 28137, 4320, -27, -763, 28427, 4093, -25, \
-766, 28710, 3871, -22, -769, 28985, 3656, -20, \
-769, 29252, 3446, -18, -769, 29511, 3243, -16, \
-766, 29761, 3045, -14, -762, 30002, 2854, -13, \
-756, 30234, 2668, -11, -749, 30457, 2489, -10, \
-739, 30671, 2315, -9, -727, 30876, 2147, -8, \
-713, 31070, 1985, -7, -697, 31255, 1828, -6, \
-678, 31430, 1677, -5, -657, 31594, 1532, -4, \
-633, 31749, 1392, -4, -606, 31892, 1257, -3, \
-577, 32026, 1128, -2, -544, 32148, 1004, -2, \
-509, 32260, 886, -2, -470, 32361, 772, -1, \
-429, 32451, 664, -1, -383, 32530, 560, -1, \
-335, 32597, 461, -1, -282, 32654, 367, 0, \
-227, 32699, 278, 0, -167, 32733, 193, 0, \
-103, 32756, 113, 0, -35, 32767, 36, 0, \
}

#define W8 { \
0, 2, -18, 95, 32767, -94, 18, -2, \
0, 6, -55, 289, 32759, -279, 53, -5, \
0, 9, -93, 488, 32744, -458, 87, -8, \
0, 13, -132, 692, 32720, -633, 120, -11, \
0, 18, -173, 900, 32689, -804, 151, -14, \
0, 22, -214, 1113, 32651, -969, 182, -17, \
0, 27, -256, 1331, 32604, -1130, 212, -20, \
0, 31, -299, 1553, 32550, -1286, 241, -22, \
0, 36, -343, 1780, 32488, -1437, 268, -25, \
0, 41, -389, 2011, 32419, -1583, 295, -27, \
-1, 47, -435, 2247, 32342, -1724, 320, -29, \
-1, 52, -482, 2488, 32257, -1861, 345, -31, \
-1, 58, -530, 2733, 32165, -1993, 368, -32, \
-1, 64, -579, 2982, 32066, -2121, 391, -34, \
-1, 70, -629, 3236, 31959, -2243, 412, -36, \
-1, 76, -679, 3494, 31844, -2361, 433, -37, \
-1, 82, -731, 3756, 31723, -2475, 452, -38, \
-1, 89, -783, 4022, 31594, -2583, 471, -40, \
-2, 96, -837, 4293, 31458, -2688, 488, -41, \
-2, 102, -891, 4567, 31315, -2787, 505, -42, \
-2, 110, -946, 4846, 31164, -2883, 521, -42, \
-2, 117, -1001, 5128, 31007, -2973, 535, -43, \
-2, 124, -1057, 5414, 30843, -3060, 549, -44, \
-3, 132, -1114, 5704, 30672, -3142, 562, -44, \
-3, 140, -1172, 5998, 30495, -3219, 574, -45, \
-3, 148, -1230, 6295, 30311, -3292, 585, -45, \
-3, 156, -1289, 6596, 30120, -3362, 596, -46, \
-4, 164, -1349, 6900, 29923, -3426, 605, -46, \
-4, 173, -1408, 7208, 29719, -3487, 614, -46, \
-4, 181, -1469, 7519, 29509, -3544, 621, -46, \
-4, 190, -1530, 7832, 29294, -3597, 628, -46, \
-5, 199, -1591, 8149, 29072, -3645, 635, -46, \
-5, 208, -1652, 8469, 28844, -3690, 640, -46, \
-6, 217, -1714, 8792, 28610, -3731, 645, -46, \
-6, 227, -1777, 9118, 28371, -3768, 649, -45, \
-6, 236, -1839, 9446, 28126, -3801, 652, -45, \
-7, 246, -1902, 9776, 27875, -3831, 655, -45, \
-7, 255, -1964, 10109, 27620, -3857, 657, -44, \
-8, 265, -2027, 10445, 27359, -3880, 658, -44, \
-8, 275, -2090, 10782, 27092, -3899, 659, -43, \
-9, 285, -2153, 11121, 26821, -3915, 659, -43, \
-9, 295, -2216, 11463, 26546, -3927, 658, -42, \
-10, 306, -2278, 11806, 26265, -3936, 657, -42, \
-10, 316, -2341, 12151, 25980, -3942, 655, -41, \
-11, 326, -2403, 12497, 25690, -3945, 653, -40, \
-11, 337, -2465, 12845, 25396, -3945, 650, -40, \
-12, 347, -2526, 13194, 25098, -3941, 647, -39, \
-12, 358, -2588, 13544, 24796, -3935, 643, -38, \
-13, 368, -2648, 13896, 24490, -3926, 639, -38, \
-14, 379, -2708, 14248, 24181, -3914, 634, -37, \
-14, 389, -2768, 14601, 23867, -3900, 629, -36, \
-15, 400, -2827, 14954, 23551, -3883, 623, -35, \
-16, 410, -2885, 15308, 23231, -3863, 617, -34, \
-16, 421, -2943, 15662, 22908, -3841, 611, -34, \
-17, 431, -2999, 16016, 22581, -3817, 604, -33, \
-18, 442, -3055, 16371, 22252, -3790, 597, -32, \
-19, 452, -3109, 16725, 21921, -3761, 590, -31, \
-19, 462, -3163, 17079, 21587, -3730, 582, -30, \
-20, 472, -3215, 17432, 21250, -3697, 574, -29, \
-21, 483, -3266, 17785, 20911, -3662, 566, -28, \
-22, 492, -3316, 18138, 20570, -3624, 558, -28, \
-23, 502, -3365, 18489, 20227, -3585, 549, -27, \
-23, 512, -3412, 18839, 19883, -3545, 540, -26, \
-24, 522, -3458, 19188, 19536, -3502, 531, -25, \
-25, 531, -3502, 19536, 19188, -3458, 522, -24, \
-26, 540, -3545, 19883, 18839, -3412, 512, -23, \
-27, 549, -3585, 20227, 18489, -3365, 502, -23, \
-28, 558, -3624, 20570, 18138, -3316, 492, -22, \
-28, 566, -3662, 20911, 17785, -3266, 483, -21, \
-29, 574, -3697, 21250, 17432, -3215, 472, -20, \
-30, 582, -3730, 21587, 17079, -3163, 462, -19, \
-31, 590, -3761, 21921, 16725, -3109, 452, -19, \
-32, 597, -3790, 22252, 16371, -3055, 442, -18, \
-33, 604, -3817, 22581, 16016, -2999, 431, -17, \
-34, 611, -3841, 22908, 15662, -2943, 421, -16, \
-34, 617, -3863, 23231, 15308, -2885, 410, -16, \
-35, 623, -3883, 23551, 14954, -2827, 400, -15, \
-36, 629, -3900, 23867, 14601, -2768, 389, -14, \
-37, 634, -3914, 24181, 14248, -2708, 379, -14, \
-38, 639, -3926, 24490, 13896, -2648, 368, -13, \
-38, 643, -3935, 24796, 13544, -2588, 358, -12, \
-39, 647, -3941, 25098, 13194, -2526, 347, -12, \
-40, 650, -3945, 25396, 12845, -2465, 337, -11, \
-40, 653, -3945, 25690, 12497, -2403, 326, -11, \
-41, 655, -3942, 25980, 12151, -2341, 316, -10, \
-42, 657, -3936, 26265, 11806, -2278, 306, -10, \
-42, 658, -3927, 26546, 11463, -2216, 295, -9, \
-43, 659, -3915, 26821, 11121, -2153, 285, -9, \
-43, 659, -3899, 27092, 10782, -2090, 275, -8, \
-44, 658, -3880, 27359, 10445, -2027, 265, -8, \
-44, 657, -3857, 27620, 10109, -1964, 255, -7, \
-45, 655, -3831, 27875, 9776, -1902, 246, -7, \
-45, 652, -3801, 28126, 9446, -1839, 236, -6, \
-45, 649, -3768, 28371, 9118, -1777, 227, -6, \
-46, 645, -3731, 28610, 8792, -1714, 217, -6, \
-46, 640, -3690, 28844, 8469, -1652, 208, -5, \
-46, 635, -3645, 29072, 8149, -1591, 199, -5, \
-46, 628, -3597, 29294, 7832, -1530, 190, -4, \
-46, 621, -3544, 29509, 7519, -1469, 181, -4, \
-46, 614, -3487, 29719, 7208, -1408, 173, -4, \
-46, 605, -3426, 29923, 6900, -1349, 164, -4, \
-46, 596, -3362, 30120, 6596, -1289, 156, -3, \
-45, 585, -3292, 30311, 6295, -1230, 148, -3, \
-45, 574, -3219, 30495, 5998, -1172, 140, -3, \
-44, 562, -3142, 30672, 5704, -1114, 132, -3, \
-44, 549, -3060, 30843, 5414, -1057, 124, -2, \
-43, 535, -2973, 31007, 5128, -1001, 117, -2, \
-42, 521, -2883, 31164, 4846, -946, 110, -2, \
-42, 505, -2787, 31315, 4567, -891, 102, -2, \
-41, 488, -2688, 31458, 4293, -837, 96, -2, \
-40, 471, -2583, 31594, 4022, -783, 89, -1, \
-38, 452, -2475, 31723, 3756, -731, 82, -1, \
-37, 433, -2361, 31844, 3494, -679, 76, -1, \
-36, 412, -2243, 31959, 3236, -629, 70, -1, \
-34, 391, -2121, 32066, 2982, -579, 64, -1, \
-32, 368, -1993, 32165, 2733, -530, 58, -1, \
-31, 345, -1861, 32257, 2488, -482, 52, -1, \
-29, 320, -1724, 32342, 2247, -435, 47, -1, \
-27, 295, -1583, 32419, 2011, -389, 41, 0, \
-25, 268, -1437, 32488, 1780, -343, 36, 0, \
-22, 241, -1286, 32550, 1553, -299, 31, 0, \
-20, 212, -1130, 32604, 1331, -256, 27, 0, \
-17, 182, -969, 32651, 1113, -214, 22, 0, \
-14, 151, -804, 32689, 900, -173, 18, 0, \
-11, 120, -633, 32720, 692, -132, 13, 0, \
-8, 87, -458, 32744, 488, -93, 9, 0, \
-5, 53, -279, 32759, 289, -55, 6, 0, \
-2, 18, -94, 32767, 95, -18, 2, 0, \
}