dcadata.h

ffmpeg的完整源代码和作者自己写的文档。不但有在Linux的工程哦

/*
 * DCA compatible decoder data
 * Copyright (C) 2004 Gildas Bazin
 * Copyright (c) 2006 Benjamin Larsson
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

/**
 * @file dcadata.c
 */

#ifndef AVCODEC_DCADATA_H
#define AVCODEC_DCADATA_H

#include <stdint.h>

/* Generic tables */

static const uint32_t dca_sample_rates[16] =
{
    0, 8000, 16000, 32000, 0, 0, 11025, 22050, 44100, 0, 0,
    12000, 24000, 48000, 96000, 192000
};

static const uint32_t dca_bit_rates[32] =
{
    32000, 56000, 64000, 96000, 112000, 128000,
    192000, 224000, 256000, 320000, 384000,
    448000, 512000, 576000, 640000, 768000,
    896000, 1024000, 1152000, 1280000, 1344000,
    1408000, 1411200, 1472000, 1536000, 1920000,
    2048000, 3072000, 3840000, 1/*open*/, 2/*variable*/, 3/*lossless*/
};

static const uint8_t dca_channels[16] =
{
    1, 2, 2, 2, 2, 3, 3, 4, 4, 5, 6, 6, 6, 7, 8, 8
};

static const uint8_t dca_bits_per_sample[7] =
{
    16, 16, 20, 20, 0, 24, 24
};


/* Adpcm data */

/* 16bits signed fractional Q13 binary codes */
static const int16_t adpcm_vb[4096][4] =
{
  { 9928, -2618, -1093, -1263 },
  { 11077, -2876, -1747, -308 },
  { 10503, -1082, -1426, -1167 },
  { 9337, -2403, -1495, 274 },
  { 10698, -2529, -532, -1122 },
  { 10368, -3974, -1264, -750 },
  { 10070, -3667, 346, 863 },
  { 10278, -3093, 311, -576 },
  { 9894, -1330, -1428, -860 },
  { 10544, -1923, -1058, -971 },
  { 10996, -1632, -841, -1404 },
  { 11832, -3465, 1658, -1990 },
  { 10852, -688, -2658, -499 },
  { 10546, -1749, -147, -1733 },
  { 10801, -1004, -708, -1453 },
  { 10588, -441, -2113, -952 },
  { 10141, -3331, -582, -1432 },
  { 9608, -2590, 383, 258 },
  { 11422, -3265, 229, -1544 },
  { 10460, -1338, -713, -1568 },
  { 10306, -1721, -1660, -603 },
  { 9580, -1812, -1235, -1061 },
  { 11471, -2285, -1617, -607 },
  { 10081, -2225, -1408, -868 },
  { 10715, -2624, -1367, -704 },
  { 10616, -1871, -2770, -35 },
  { 9352, -2340, -1024, -1566 },
  { 11065, -1458, -1926, -735 },
  { 11334, -2056, -1041, -1144 },
  { 9825, -2048, -794, -1536 },
  { 11850, -2695, -1123, -867 },
  { 10654, -2226, -1891, -373 },
  { 10024, -1557, -808, -1069 },
  { 11142, -1266, -3238, 128 },
  { 11729, -3282, -514, -1011 },
  { 11402, -2094, -2335, -189 },
  { 10195, -3658, 181, -1875 },
  { 11431, -2626, -404, -1377 },
  { 11001, -3868, -619, -1077 },
  { 10894, -2559, 274, -1758 },
  { 9633, -1482, -2253, -773 },
  { 11245, -3321, 830, -1972 },
  { 9768, -2701, -199, -1859 },
  { 10500, -2042, 525, -2043 },
  { 11669, -4069, 293, -1468 },
  { 9192, -1991, -583, -61 },
  { 10057, -3220, -2015, -473 },
  { 9497, -2315, -2490, -467 },
  { 10455, -3069, -1194, -1007 },
  { 9994, -1936, -60, -1225 },
  { 9295, -2156, -1761, -1134 },
  { 10085, -3748, -1026, 197 },
  { 9334, -2360, 804, -351 },
  { 11561, -2553, 1352, -2313 },
  { 12837, -3998, 1195, -1958 },
  { 10114, -1100, -2414, -394 },
  { 9341, -2530, 315, 755 },
  { 10131, -3164, 1411, -674 },
  { 9535, -905, -1551, 579 },
  { 11717, -1519, -3051, 91 },
  { 9824, -2911, -2775, 192 },
  { 9662, -2934, -561, 1450 },
  { 11085, -3392, -1298, -659 },
  { 8955, -2102, -1899, 703 },
  { 8607, -1742, -4348, 814 },
  { 7640, -2063, -3617, 52 },
  { 7074, -826, -4325, 4375 },
  { 7714, 584, -4238, 1927 },
  { 6355, -952, -4912, 3127 },
  { 7069, -660, -6413, 4087 },
  { 8313, -132, -2964, -876 },
  { 6952, -1422, -3962, -24 },
  { 9299, -734, -3088, -263 },
  { 9484, -574, -4513, 466 },
  { 7246, -91, -3735, -704 },
  { 8325, -1417, -3090, -530 },
  { 6469, -1226, -4757, 829 },
  { 6652, -368, -5682, 1393 },
  { 7971, -1278, -2284, 1205 },
  { 7229, -699, -3556, 1840 },
  { 7994, 1284, -2729, 732 },
  { 9005, -698, -4522, 2189 },
  { 6963, 197, -2727, 380 },
  { 8527, 135, -3991, -213 },
  { 8840, 934, -3014, -567 },
  { 10125, 418, -3284, -371 },
  { 6367, 361, -2318, 2554 },
  { 7892, 172, -5247, 4673 },
  { 6674, 387, -5424, 4398 },
  { 6240, 684, -4047, 1219 },
  { 11170, -794, -5081, 1195 },
  { 11765, -648, -6265, 2052 },
  { 10845, -775, -3837, 366 },
  { 12496, -689, -8260, 3562 },
  { 7893, -1166, -4972, 988 },
  { 8592, 1052, -5986, 3087 },
  { 7277, 1874, -5685, 3579 },
  { 6900, 2016, -4809, 3491 },
  { 8530, -2405, -3250, 1986 },
  { 9426, 494, -7067, 5038 },
  { 10285, 564, -8210, 5370 },
  { 8749, -2207, -3980, 2852 },
  { 9653, -2686, -4300, 1400 },
  { 9770, -2286, -5663, 4233 },
  { 8490, -4, -7048, 4496 },
  { 7697, -1209, -5328, 3183 },
  { 6451, 801, -4324, -554 },
  { 7387, 1806, -5265, 545 },
  { 7450, -2302, -4445, 1418 },
  { 8817, -1370, -5827, 2168 },
  { 10324, -2406, -5629, 2579 },
  { 8863, -2578, -3537, 467 },
  { 6901, -1624, -3169, 3392 },
  { 7846, 156, -6948, 3381 },
  { 7928, -1115, -5972, 4816 },
  { 6089, -599, -4368, -320 },
  { 7833, 1246, -3960, -621 },
  { 8931, 2521, -6768, 2052 },
  { 8900, 1944, -4126, 40 },
  { 7661, -34, -2855, 2480 },
  { 5873, 474, -3262, 3712 },
  { 7535, -234, -4699, 216 },
  { 5856, 143, -5142, 73 },
  { 8944, -106, -5874, 3663 },
  { 7134, 426, -5879, 2895 },
  { 10199, 1011, -4762, 369 },
  { 8454, 264, -5971, 1291 },
  { 7822, -2449, -4333, 4540 },
  { 6200, -2758, -2632, 1497 },
  { 6070, -4315, -2699, 414 },
  { 7047, -3739, -3210, 1060 },
  { 5675, -3801, -2717, -407 },
  { 4789, -4063, -2628, -744 },
  { 4023, -3366, -3133, -726 },
  { 4296, -2407, -3381, -513 },
  { 4388, -2931, -2820, 1512 },
  { 4559, -4233, -1941, 1976 },
  { 6702, -3208, -1755, 1680 },
  { 4416, -3521, -1052, 2984 },
  { 7154, -4266, -1203, 3732 },
  { 3625, -4242, -3244, 1395 },
  { 6518, -2856, -1304, 2887 },
  { 6170, -1949, -3014, 3973 },
  { 5189, -2451, -4020, 3477 },
  { 6218, -2988, -1921, 3844 },
  { 4827, -3688, -1928, 3343 },
  { 6668, -3991, -2805, 3095 },
  { 5297, -3115, -3684, 2390 },
  { 5354, -4614, -2662, 1504 },
  { 4196, -3091, -4147, 1135 },
  { 3540, -2893, -4007, 100 },
  { 5569, -1602, -4007, 1909 },
  { 4341, -2091, -4272, 252 },
  { 5559, -2878, -3832, 498 },
  { 4548, -4479, -2898, -27 },
  { 5176, -2494, -4635, 1476 },
  { 3294, -3485, -3738, 716 },
  { 4920, -1229, -4195, -365 },
  { 3257, -3518, -3349, 2862 },
  { 5286, -1948, -3485, -778 },
  { 6502, -3051, -152, 2854 },
  { 5864, -4192, -1076, 3451 },
  { 4656, -3122, -3448, 179 },
  { 5907, -754, -1596, 3116 },
  { 7229, -3680, -1590, 2892 },
  { 5107, -3888, -3364, 806 },
  { 6764, -2635, -3450, 134 },
  { 5258, -2827, -2844, -1052 },
  { 5798, -1725, -4305, 205 },
  { 5404, -1213, -3362, 449 },
  { 6224, -2738, -3046, -581 },
  { 4223, -2438, -2725, 3745 },
  { 4751, -3411, -2123, 116 },
  { 3868, -3000, -3954, 2297 },
  { 6819, -2899, -4277, 2825 },
  { 4207, -4754, -2808, 865 },
  { 4804, -1494, -1997, 4688 },
  { 5282, -2213, -548, 3559 },
  { 5580, -1912, -566, 4370 },
  { 6168, -2857, -672, 4053 },
  { 6583, -4515, -2850, 1670 },
  { 6511, -3093, -3988, 1421 },
  { 4646, -1790, -1443, 3650 },
  { 5915, -924, -2020, 896 },
  { 7814, -4181, -3152, 2007 },
  { 6190, -2238, -4817, 2279 },
  { 4737, -4034, -3288, 1835 },
  { 8161, -3633, -3423, 3137 },
  { 7415, -2351, -2088, 4290 },
  { 4106, -2517, -62, 2905 },
  { 4909, -3145, -614, 4112 },
  { 4938, -3281, -397, 1100 },
  { -173, 919, 1589, -5363 },
  { -13, 796, -295, -6655 },
  { -1860, -829, 1141, -4555 },
  { 2298, -838, -664, -5005 },
  { -884, -1097, 2074, -4613 },
  { -101, 281, 2846, -4535 },
  { 1166, 453, 2429, -5910 },
  { 879, -664, 2370, -5452 },
  { 1415, -370, -1699, -4727 },
  { -1413, 1277, -669, -6649 },
  { 2133, 304, -968, -4624 },
  { 380, 586, -2087, -4892 },
  { 1336, 275, -82, -5789 },
  { -2459, 1057, -34, -5416 },
  { 2278, -1758, 866, -5653 },
  { 1945, -2295, -149, -5302 },
  { 1287, -3525, 996, -5255 },
  { 2297, 803, 1177, -6067 },
  { 187, -180, -619, -6202 },
  { -793, -2537, 1554, -5057 },
  { -2703, -204, -629, -5853 },
  { -1007, -146, 313, -5582 },
  { 830, 357, 869, -6363 },
  { -228, -575, -3177, -4433 },
  { -1001, -1553, -142, -5708 },
  { -1644, 1683, 1721, -4533 },
  { 893, 1924, -15, -5791 },
  { 2195, 2061, -262, -5471 },
  { 3031, 270, 311, -5096 },
  { 1912, 1638, -1523, -4677 },
  { -3142, -55, 253, -4914 },
  { 356, -1680, 343, -6123 },
  { -2241, -1734, -976, -5939 },
  { -2196, -2893, 547, -4938 },
  { -1245, 126, -1916, -5419 },
  { -249, -3755, -1422, -5594 },
  { 575, -2683, -1926, -4566 },
  { -762, 1885, 192, -5880 },
  { -811, -2562, -1068, -6013 },
  { -2264, -3086, -976, -4775 },
  { 70, -1215, 2880, -4410 },
  { 714, -3760, 2916, -4691 },
  { -244, -3404, 1740, -4493 },
  { 684, -5137, -328, -5608 },
  { -529, -3825, -1786, -4535 },
  { -713, -4743, -1118, -5546 },
  { 2718, -3788, 1798, -5708 },
  { -1639, -3679, -1564, -6095 },
  { 1693, -2642, -1389, -4539 },
  { 505, -1573, -1651, -4878 },
  { -835, -2256, -1941, -5352 },
  { 1464, -411, 1993, -6441 },
  { 493, -3184, -145, -6148 },
  { -1413, 499, -1617, -6479 },
  { -294, 1722, -1419, -5725 },
  { -2937, -1528, -175, -4624 },
  { -594, -5911, -56, -6146 },
  { -300, -4275, 1156, -5947 },
  { 552, -2643, 2669, -3959 },
  { 905, -4158, 1789, -5809 },
  { 1336, -2009, 2108, -5903 },
  { 1555, -3600, 1110, -6759 },
  { -1294, -3464, 77, -6084 },
  { -1139, -4006, -1270, -4181 },
  { -5094, -3296, 1092, -2847 },
  { -5503, -2883, 1984, -2067 },
  { -4671, -4218, -1417, -4132 },
  { -3763, -3818, 1262, -3082 },
  { -5132, -3430, 2928, -728 },
  { -5957, -2877, 1251, -2446 },
  { -4425, -2319, -212, -4276 },
  { -6201, -1993, 1774, -2182 },
  { -5500, -3836, 2201, -1396 },
  { -6934, -2334, 2366, -1293 },
  { -6124, -4140, 1337, -1977 },
  { -6553, -4186, 1756, -1325 },
  { -5126, -1258, 744, -3656 },
  { -5167, -1390, 1581, -2895 },
  { -4525, -3398, 2429, -1865 },
  { -4076, -3183, 2027, -2510 },
  { -6191, -3274, 1838, -1814 },
  { -4454, -2753, 2723, -1185 },
  { -6655, -4797, 251, -2595 },
  { -6332, -2232, 1832, 217 },
  { -5869, -1698, 134, 340 },
  { -6614, -1045, 2126, -1932 },
  { -4859, -2107, 2010, -2435 },
  { -6274, -1622, 2808, -1374 },
  { -3119, -3209, 521, -3988 },
  { -5676, -2082, -420, -2711 },
  { -7073, -3623, 696, -2343 },
  { -5986, -4224, 572, -2454 },
  { -4340, -4521, 882, -2771 },
  { -6178, -1933, 535, -1444 },
  { -4923, -4163, 1744, -2066 },
  { -6410, -1519, 1058, -2683 },
  { -5077, -1185, 856, -2216 },
  { -7091, -2444, 687, -2597 },
  { -5284, -2165, 3239, -993 },
  { -4763, -1497, 197, -3179 },
  { -4128, -4958, -396, -3578 },
  { -5054, -3878, -647, -2672 },
  { -7005, -3348, 1679, -1579 },
  { -5767, -1017, 2582, -1915 },
  { -7069, -2787, 1331, -2070 },
  { -5532, -2296, 706, -2950 },
  { -5059, -3543, -821, -3637 },
  { -6639, -1835, 1016, -696 },
  { -5611, -5220, -694, -3371 },
  { -5994, -2803, 2933, -729 },
  { -5948, -619, 1596, -2676 },
  { -5486, -4419, 153, -3265 },
  { -4329, -3440, 1646, -1439 },
  { -4083, -3978, 177, -3569 },
  { -4289, -2599, 1224, -3075 },
  { -5707, -3253, 1912, -759 },
  { -6606, -3437, 2562, -571 },
  { -5254, -2444, 769, -352 },
  { -6545, -3154, 582, -1103 },
  { -5328, -2241, 2566, -1775 },
  { -7216, -1936, 1538, -1983 },
  { -3730, -2451, 426, -3869 },
  { -5110, -1385, 2031, -1169 },
  { -6470, -2715, 269, -3123 },
  { -5806, -2480, -97, -3832 },
  { -3683, -4916, -490, -4330 },
  { -6341, -2083, -669, -115 },
  { -4913, -4079, -837, -4673 },
  { -3274, -2497, 2334, -2652 },
  { -1286, -1731, 2550, -3756 },
  { -3375, -877, 926, -3977 },
  { -2525, -2079, 2879, -2625 },
  { -5308, -504, 3111, -1607 },
  { -4904, 460, 4093, -1232 },
  { -1993, 1616, 4656, -1913 },
  { -3481, -1176, 3119, -2236 },
  { -4132, -1502, 2339, -2545 },
  { -2542, 1151, 3569, -2550 },
  { -4381, 430, 3147, -2082 },
  { -3888, 867, 3899, -1657 },
  { -2861, 1290, 4202, -1979 },
  { -3893, -253, 2363, -2764 },
  { -1705, 688, 3827, -2923 },
  { -2223, 2312, 3700, -3148 },
  { -1986, -720, 5021, -795 },
  { -3177, 242, 1952, -3352 },
  { -1854, 1509, 2528, -3815 },
  { -3173, 97, 5019, -706 },
  { -2689, -145, 1375, -3915 },
  { -4838, -385, 2488, -2427 },
  { -4557, -355, 1603, -3060 },
  { -3522, 1832, 3292, -2674 },
  { -3769, 780, 2378, -2704 },
  { -4323, -1932, 3414, -1169 },
  { -2740, 1158, 2729, -3273 },
  { -3647, 210, 1464, -2892 },
  { -2342, -2097, 1513, -3727 },
  { -4422, -1242, 3130, -1833 },
  { -1308, -1039, 4290, -1875 },