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 32 33 34 Filename: /audio/gsm_amr/c/src/include/inter_36.h 35 36 Date: 01/29/2002 37 38 ------------------------------------------------------------------------------ 39 REVISION HISTORY 40 41 Description: Moved _cplusplus #ifdef after Include section. 42 43 Description: 44 45 ------------------------------------------------------------------------------ 46 INCLUDE DESCRIPTION 47 48 File : inter_36.h 49 Purpose : Interpolating the normalized correlation 50 : with 1/3 or 1/6 resolution. 51 52 ------------------------------------------------------------------------------ 53 */ 54 55 #ifndef _INTER_36_H_ 56 #define _INTER_36_H_ 57 #define inter_36_h "$Id $" 58 59 /*---------------------------------------------------------------------------- 60 ; INCLUDES 61 ----------------------------------------------------------------------------*/ 62 #include "typedef.h" 63 64 /*--------------------------------------------------------------------------*/ 65 #ifdef __cplusplus 66 extern "C" 67 { 68 #endif 69 70 /*---------------------------------------------------------------------------- 71 ; MACROS 72 ; [Define module specific macros here] 73 ----------------------------------------------------------------------------*/ 74 75 /*---------------------------------------------------------------------------- 76 ; DEFINES 77 ; [Include all pre-processor statements here.] 78 ----------------------------------------------------------------------------*/ 79 80 /*---------------------------------------------------------------------------- 81 ; EXTERNAL VARIABLES REFERENCES 82 ; [Declare variables used in this module but defined elsewhere] 83 ----------------------------------------------------------------------------*/ 84 85 /*---------------------------------------------------------------------------- 86 ; SIMPLE TYPEDEF'S 87 ----------------------------------------------------------------------------*/ 88 89 /*---------------------------------------------------------------------------- 90 ; ENUMERATED TYPEDEF'S 91 ----------------------------------------------------------------------------*/ 92 93 /*---------------------------------------------------------------------------- 94 ; STRUCTURES TYPEDEF'S 95 ----------------------------------------------------------------------------*/ 96 97 98 /*---------------------------------------------------------------------------- 99 ; GLOBAL FUNCTION DEFINITIONS 100 ; [List function prototypes here] 101 ----------------------------------------------------------------------------*/ 102 Word16 Interpol_3or6( /* (o) : interpolated value */ 103 Word16 *x, /* (i) : input vector */ 104 Word16 frac, /* (i) : fraction (-2..2 for 3*, -3..3 for 6*) */ 105 Word16 flag3, /* (i) : if set, upsampling rate = 3 (6 otherwise) */ 106 Flag *pOverflow 107 ); 108 109 110 111 #ifdef __cplusplus 112 } 113 #endif 114 115 #endif /* _INTER_36_H_ */ 116 117 118