FFmpeg
ra288.h
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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 */
static const float amptable[8]
Definition: ra288.h:29
#define DECLARE_ALIGNED(n, t, v)
Declare a variable that is aligned in memory.
Definition: mem.h:117
#define FFALIGN(x, a)
Definition: macros.h:48
static const float syn_window[FFALIGN(111, 16)]
Definition: ra288.h:101
static const float gain_window[FFALIGN(38, 16)]
Definition: ra288.h:123
static const float syn_bw_tab[FFALIGN(36, 16)]
synthesis bandwidth broadening table
Definition: ra288.h:134
static const int16_t codetable[128][5]
Definition: ra288.h:34
static const float gain_bw_tab[FFALIGN(10, 16)]
gain bandwidth broadening table
Definition: ra288.h:144
common internal and external API header