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/gray_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 the gray encoding and decoding tables, 48 gray_tbl[] and dgray_tbl[] used by the c1035pf and d1035pf module 49 respectively. 50 51 ------------------------------------------------------------------------------ 52 */ 53 54 /*---------------------------------------------------------------------------- 55 ; INCLUDES 56 ----------------------------------------------------------------------------*/ 57 #include "typedef.h" 58 59 /*--------------------------------------------------------------------------*/ 60 #ifdef __cplusplus 61 extern "C" 62 { 63 #endif 64 65 /*---------------------------------------------------------------------------- 66 ; MACROS 67 ; [Define module specific macros here] 68 ----------------------------------------------------------------------------*/ 69 70 /*---------------------------------------------------------------------------- 71 ; DEFINES 72 ; [Include all pre-processor statements here. Include conditional 73 ; compile variables also.] 74 ----------------------------------------------------------------------------*/ 75 76 /*---------------------------------------------------------------------------- 77 ; LOCAL FUNCTION DEFINITIONS 78 ; [List function prototypes here] 79 ----------------------------------------------------------------------------*/ 80 81 /*---------------------------------------------------------------------------- 82 ; LOCAL VARIABLE DEFINITIONS 83 ; [Variable declaration - defined here and used outside this module] 84 ----------------------------------------------------------------------------*/ 85 86 extern const Word16 gray[8] = {0, 1, 3, 2, 6, 4, 5, 7}; 87 extern const Word16 dgray[8] = {0, 1, 3, 2, 5, 6, 4, 7}; 88 89 /*--------------------------------------------------------------------------*/ 90 #ifdef __cplusplus 91 } 92 #endif 93 94 /* 95 ------------------------------------------------------------------------------ 96 FUNCTION NAME: 97 ------------------------------------------------------------------------------ 98 INPUT AND OUTPUT DEFINITIONS 99 100 Inputs: 101 None 102 103 Outputs: 104 None 105 106 Returns: 107 None 108 109 Global Variables Used: 110 None 111 112 Local Variables Needed: 113 None 114 115 ------------------------------------------------------------------------------ 116 FUNCTION DESCRIPTION 117 118 None 119 120 ------------------------------------------------------------------------------ 121 REQUIREMENTS 122 123 None 124 125 ------------------------------------------------------------------------------ 126 REFERENCES 127 128 [1] gray.tab, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001 129 130 ------------------------------------------------------------------------------ 131 PSEUDO-CODE 132 133 134 ------------------------------------------------------------------------------ 135 RESOURCES USED [optional] 136 137 When the code is written for a specific target processor the 138 the resources used should be documented below. 139 140 HEAP MEMORY USED: x bytes 141 142 STACK MEMORY USED: x bytes 143 144 CLOCK CYCLES: (cycle count equation for this function) + (variable 145 used to represent cycle count for each subroutine 146 called) 147 where: (cycle count variable) = cycle count for [subroutine 148 name] 149 150 ------------------------------------------------------------------------------ 151 CAUTION [optional] 152 [State any special notes, constraints or cautions for users of this function] 153 154 ------------------------------------------------------------------------------ 155 */ 156 157 /*---------------------------------------------------------------------------- 158 ; FUNCTION CODE 159 ----------------------------------------------------------------------------*/ 160 161
