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 31 Filename: /audio/gsm_amr/c/src/grid_tbl.c 32 33 ------------------------------------------------------------------------------ 34 REVISION HISTORY 35 36 Description: Added #ifdef __cplusplus and removed "extern" from table 37 definition. 38 39 Description: Put "extern" back. 40 41 Who: Date: 42 Description: 43 44 ------------------------------------------------------------------------------ 45 MODULE DESCRIPTION 46 47 This file contains the declaration for grid_tbl[] used by the az_lsp() 48 function. 49 50 // Table for az_lsp() 51 // 52 // grid[0] = 1.0; 53 // grid[grid_points+1] = -1.0; 54 // for (i = 1; i < grid_points; i++) 55 // grid[i] = cos((6.283185307*i)/(2.0*grid_points)); 56 // 57 // 58 59 ------------------------------------------------------------------------------ 60 */ 61 62 /*---------------------------------------------------------------------------- 63 ; INCLUDES 64 ----------------------------------------------------------------------------*/ 65 #include "typedef.h" 66 #include "az_lsp.h" 67 68 /*--------------------------------------------------------------------------*/ 69 #ifdef __cplusplus 70 extern "C" 71 { 72 #endif 73 74 /*---------------------------------------------------------------------------- 75 ; MACROS 76 ; [Define module specific macros here] 77 ----------------------------------------------------------------------------*/ 78 79 /*---------------------------------------------------------------------------- 80 ; DEFINES 81 ; [Include all pre-processor statements here. Include conditional 82 ; compile variables also.] 83 ----------------------------------------------------------------------------*/ 84 #define grid_points 60 85 86 /*---------------------------------------------------------------------------- 87 ; LOCAL FUNCTION DEFINITIONS 88 ; [List function prototypes here] 89 ----------------------------------------------------------------------------*/ 90 91 /*---------------------------------------------------------------------------- 92 ; LOCAL VARIABLE DEFINITIONS 93 ; [Variable declaration - defined here and used outside this module] 94 ----------------------------------------------------------------------------*/ 95 const Word16 grid[grid_points + 1] = 96 { 97 32760, 32723, 32588, 32364, 32051, 31651, 98 31164, 30591, 29935, 29196, 28377, 27481, 99 26509, 25465, 24351, 23170, 21926, 20621, 100 19260, 17846, 16384, 14876, 13327, 11743, 101 10125, 8480, 6812, 5126, 3425, 1714, 102 0, -1714, -3425, -5126, -6812, -8480, 103 -10125, -11743, -13327, -14876, -16384, -17846, 104 -19260, -20621, -21926, -23170, -24351, -25465, 105 -26509, -27481, -28377, -29196, -29935, -30591, 106 -31164, -31651, -32051, -32364, -32588, -32723, 107 -32760 108 }; 109 110 /*--------------------------------------------------------------------------*/ 111 #ifdef __cplusplus 112 } 113 #endif 114 115 /* 116 ------------------------------------------------------------------------------ 117 FUNCTION NAME: 118 ------------------------------------------------------------------------------ 119 INPUT AND OUTPUT DEFINITIONS 120 121 Inputs: 122 None 123 124 Outputs: 125 None 126 127 Returns: 128 None 129 130 Global Variables Used: 131 None 132 133 Local Variables Needed: 134 None 135 136 ------------------------------------------------------------------------------ 137 FUNCTION DESCRIPTION 138 139 None 140 141 ------------------------------------------------------------------------------ 142 REQUIREMENTS 143 144 None 145 146 ------------------------------------------------------------------------------ 147 REFERENCES 148 149 [1] grid.tab, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001 150 151 ------------------------------------------------------------------------------ 152 PSEUDO-CODE 153 154 155 ------------------------------------------------------------------------------ 156 RESOURCES USED [optional] 157 158 When the code is written for a specific target processor the 159 the resources used should be documented below. 160 161 HEAP MEMORY USED: x bytes 162 163 STACK MEMORY USED: x bytes 164 165 CLOCK CYCLES: (cycle count equation for this function) + (variable 166 used to represent cycle count for each subroutine 167 called) 168 where: (cycle count variable) = cycle count for [subroutine 169 name] 170 171 ------------------------------------------------------------------------------ 172 CAUTION [optional] 173 [State any special notes, constraints or cautions for users of this function] 174 175 ------------------------------------------------------------------------------ 176 */ 177 178 /*---------------------------------------------------------------------------- 179 ; FUNCTION CODE 180 ----------------------------------------------------------------------------*/ 181 182
