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      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 /****************************************************************************************
     19 Portions 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)
     26 Permission to distribute, modify and use this file under the standard license
     27 terms 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
     55 extern "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