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1/********************************************************************
2 * *
3 * THIS FILE IS PART OF THE OggVorbis 'TREMOR' CODEC SOURCE CODE. *
4 * *
5 * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
6 * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
7 * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
8 * *
9 * THE OggVorbis 'TREMOR' SOURCE CODE IS (C) COPYRIGHT 1994-2002 *
10 * BY THE Xiph.Org FOUNDATION http://www.xiph.org/ *
11 * *
12 ********************************************************************
13
14 function: lookup data
15
16 ********************************************************************/
17
18#ifndef _V_LOOKUP_DATA_H_
19#define _V_LOOKUP_DATA_H_
20
21#include "os_types.h"
22
23#define FROMdB_LOOKUP_SZ 35
24#define FROMdB2_LOOKUP_SZ 32
25#define FROMdB_SHIFT 5
26#define FROMdB2_SHIFT 3
27#define FROMdB2_MASK 31
28
29static const ogg_int32_t FROMdB_LOOKUP[FROMdB_LOOKUP_SZ]={
30 0x003fffff, 0x0028619b, 0x00197a96, 0x0010137a,
31 0x000a24b0, 0x00066666, 0x000409c3, 0x00028c42,
32 0x00019b8c, 0x000103ab, 0x0000a3d7, 0x00006760,
33 0x0000413a, 0x00002928, 0x000019f8, 0x00001062,
34 0x00000a56, 0x00000686, 0x0000041e, 0x00000299,
35 0x000001a3, 0x00000109, 0x000000a7, 0x00000069,
36 0x00000042, 0x0000002a, 0x0000001a, 0x00000011,
37 0x0000000b, 0x00000007, 0x00000004, 0x00000003,
38 0x00000002, 0x00000001, 0x00000001};
39
40static const ogg_int32_t FROMdB2_LOOKUP[FROMdB2_LOOKUP_SZ]={
41 0x000001fc, 0x000001f5, 0x000001ee, 0x000001e7,
42 0x000001e0, 0x000001d9, 0x000001d2, 0x000001cc,
43 0x000001c5, 0x000001bf, 0x000001b8, 0x000001b2,
44 0x000001ac, 0x000001a6, 0x000001a0, 0x0000019a,
45 0x00000194, 0x0000018e, 0x00000188, 0x00000183,
46 0x0000017d, 0x00000178, 0x00000172, 0x0000016d,
47 0x00000168, 0x00000163, 0x0000015e, 0x00000159,
48 0x00000154, 0x0000014f, 0x0000014a, 0x00000145,
49};
50
51#define INVSQ_LOOKUP_I_SHIFT 10
52#define INVSQ_LOOKUP_I_MASK 1023
53static const long INVSQ_LOOKUP_I[64+1]={
54 92682, 91966, 91267, 90583,
55 89915, 89261, 88621, 87995,
56 87381, 86781, 86192, 85616,
57 85051, 84497, 83953, 83420,
58 82897, 82384, 81880, 81385,
59 80899, 80422, 79953, 79492,
60 79039, 78594, 78156, 77726,
61 77302, 76885, 76475, 76072,
62 75674, 75283, 74898, 74519,
63 74146, 73778, 73415, 73058,
64 72706, 72359, 72016, 71679,
65 71347, 71019, 70695, 70376,
66 70061, 69750, 69444, 69141,
67 68842, 68548, 68256, 67969,
68 67685, 67405, 67128, 66855,
69 66585, 66318, 66054, 65794,
70 65536,
71};
72
73static const long INVSQ_LOOKUP_IDel[64]={
74 716, 699, 684, 668,
75 654, 640, 626, 614,
76 600, 589, 576, 565,
77 554, 544, 533, 523,
78 513, 504, 495, 486,
79 477, 469, 461, 453,
80 445, 438, 430, 424,
81 417, 410, 403, 398,
82 391, 385, 379, 373,
83 368, 363, 357, 352,
84 347, 343, 337, 332,
85 328, 324, 319, 315,
86 311, 306, 303, 299,
87 294, 292, 287, 284,
88 280, 277, 273, 270,
89 267, 264, 260, 258,
90};
91
92#define COS_LOOKUP_I_SHIFT 9
93#define COS_LOOKUP_I_MASK 511
94#define COS_LOOKUP_I_SZ 128
95static const ogg_int32_t COS_LOOKUP_I[COS_LOOKUP_I_SZ+1]={
96 16384, 16379, 16364, 16340,
97 16305, 16261, 16207, 16143,
98 16069, 15986, 15893, 15791,
99 15679, 15557, 15426, 15286,
100 15137, 14978, 14811, 14635,
101 14449, 14256, 14053, 13842,
102 13623, 13395, 13160, 12916,
103 12665, 12406, 12140, 11866,
104 11585, 11297, 11003, 10702,
105 10394, 10080, 9760, 9434,
106 9102, 8765, 8423, 8076,
107 7723, 7366, 7005, 6639,
108 6270, 5897, 5520, 5139,
109 4756, 4370, 3981, 3590,
110 3196, 2801, 2404, 2006,
111 1606, 1205, 804, 402,
112 0, -401, -803, -1204,
113 -1605, -2005, -2403, -2800,
114 -3195, -3589, -3980, -4369,
115 -4755, -5138, -5519, -5896,
116 -6269, -6638, -7004, -7365,
117 -7722, -8075, -8422, -8764,
118 -9101, -9433, -9759, -10079,
119 -10393, -10701, -11002, -11296,
120 -11584, -11865, -12139, -12405,
121 -12664, -12915, -13159, -13394,
122 -13622, -13841, -14052, -14255,
123 -14448, -14634, -14810, -14977,
124 -15136, -15285, -15425, -15556,
125 -15678, -15790, -15892, -15985,
126 -16068, -16142, -16206, -16260,
127 -16304, -16339, -16363, -16378,
128 -16383,
129};
130
131#endif
132
133
134
135
136