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