lsp_lsf_tbl.cpp revision 1ead790eadd0e09a118308caccc7ac37d36f43f3 
1/* ------------------------------------------------------------------
2 * Copyright (C) 1998-2009 PacketVideo
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
13 * express or implied.
14 * See the License for the specific language governing permissions
15 * and limitations under the License.
16 * -------------------------------------------------------------------
17 */
18/****************************************************************************************
19Portions of this file are derived from the following 3GPP standard:
20
21    3GPP TS 26.073
22    ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
23    Available from http://www.3gpp.org
24
25(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
26Permission to distribute, modify and use this file under the standard license
27terms listed above has been obtained from the copyright holder.
28****************************************************************************************/
29/*
30 Filename: /audio/gsm_amr/c/src/lsp_lsf_tbl.c
31
32------------------------------------------------------------------------------
33 REVISION HISTORY
34
35 Description: Created this file from the reference, lsp_lsf.tab
36
37 Description: Added #ifdef __cplusplus and removed "extern" from table
38              definition.
39
40 Description: Put "extern" back.
41
42------------------------------------------------------------------------------
43 MODULE DESCRIPTION
44
45------------------------------------------------------------------------------
46*/
47
48/*----------------------------------------------------------------------------
49; INCLUDES
50----------------------------------------------------------------------------*/
51#include "typedef.h"
52
53/*--------------------------------------------------------------------------*/
54#ifdef __cplusplus
55extern "C"
56{
57#endif
58
59    /*----------------------------------------------------------------------------
60    ; MACROS
61    ; [Define module specific macros here]
62    ----------------------------------------------------------------------------*/
63
64    /*----------------------------------------------------------------------------
65    ; DEFINES
66    ; [Include all pre-processor statements here. Include conditional
67    ; compile variables also.]
68    ----------------------------------------------------------------------------*/
69
70    /*----------------------------------------------------------------------------
71    ; LOCAL FUNCTION DEFINITIONS
72    ; [List function prototypes here]
73    ----------------------------------------------------------------------------*/
74
75    /*----------------------------------------------------------------------------
76    ; LOCAL VARIABLE DEFINITIONS
77    ; [Variable declaration - defined here and used outside this module]
78    ----------------------------------------------------------------------------*/
79
80    extern const Word16 table[];
81    const Word16 table[65] =
82    {
83        32767, 32729, 32610, 32413, 32138, 31786, 31357, 30853,
84        30274, 29622, 28899, 28106, 27246, 26320, 25330, 24279,
85        23170, 22006, 20788, 19520, 18205, 16846, 15447, 14010,
86        12540, 11039, 9512, 7962, 6393, 4808, 3212, 1608,
87        0, -1608, -3212, -4808, -6393, -7962, -9512, -11039,
88        -12540, -14010, -15447, -16846, -18205, -19520, -20788, -22006,
89        -23170, -24279, -25330, -26320, -27246, -28106, -28899, -29622,
90        -30274, -30853, -31357, -31786, -32138, -32413, -32610, -32729,
91        (Word16) 0x8000
92    };
93
94    /* 0x8000 = -32768 (used to silence the compiler) */
95
96    /* slope used to compute y = acos(x) */
97
98    extern const Word16 slope[];
99    const Word16 slope[64] =
100    {
101        -26887, -8812, -5323, -3813, -2979, -2444, -2081, -1811,
102        -1608, -1450, -1322, -1219, -1132, -1059, -998, -946,
103        -901, -861, -827, -797, -772, -750, -730, -713,
104        -699, -687, -677, -668, -662, -657, -654, -652,
105        -652, -654, -657, -662, -668, -677, -687, -699,
106        -713, -730, -750, -772, -797, -827, -861, -901,
107        -946, -998, -1059, -1132, -1219, -1322, -1450, -1608,
108        -1811, -2081, -2444, -2979, -3813, -5323, -8812, -26887
109    };
110
111    /*--------------------------------------------------------------------------*/
112#ifdef __cplusplus
113}
114#endif
115
116