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/include/dec_lag3.h 35 36 Date: 01/29/2002 37 38 ------------------------------------------------------------------------------ 39 REVISION HISTORY 40 41 Description: Placed header file in the proper template format. Added 42 parameter pOverflow for the basic math ops. 43 44 Description: Moved _cplusplus #ifdef after Include section. 45 46 Description: 47 48 ------------------------------------------------------------------------------ 49 INCLUDE DESCRIPTION 50 51 This file contains all the constant definitions and prototype definitions 52 needed by the dec_lag3.c 53 54 ------------------------------------------------------------------------------ 55 */ 56 57 /*---------------------------------------------------------------------------- 58 ; CONTINUE ONLY IF NOT ALREADY DEFINED 59 ----------------------------------------------------------------------------*/ 60 #ifndef dec_lag3_h 61 #define dec_lag3_h "$Id $" 62 63 64 /*---------------------------------------------------------------------------- 65 ; INCLUDES 66 ----------------------------------------------------------------------------*/ 67 #include "typedef.h" 68 69 /*--------------------------------------------------------------------------*/ 70 #ifdef __cplusplus 71 extern "C" 72 { 73 #endif 74 75 /*---------------------------------------------------------------------------- 76 ; MACROS 77 ; Define module specific macros here 78 ----------------------------------------------------------------------------*/ 79 80 /*---------------------------------------------------------------------------- 81 ; DEFINES 82 ; Include all pre-processor statements here. 83 ----------------------------------------------------------------------------*/ 84 85 /*---------------------------------------------------------------------------- 86 ; EXTERNAL VARIABLES REFERENCES 87 ; Declare variables used in this module but defined elsewhere 88 ----------------------------------------------------------------------------*/ 89 90 /*---------------------------------------------------------------------------- 91 ; SIMPLE TYPEDEF'S 92 ----------------------------------------------------------------------------*/ 93 94 /*---------------------------------------------------------------------------- 95 ; ENUMERATED TYPEDEF'S 96 ----------------------------------------------------------------------------*/ 97 98 /*---------------------------------------------------------------------------- 99 ; STRUCTURES TYPEDEF'S 100 ----------------------------------------------------------------------------*/ 101 102 /*---------------------------------------------------------------------------- 103 ; GLOBAL FUNCTION DEFINITIONS 104 ; Function Prototype declaration 105 ----------------------------------------------------------------------------*/ 106 107 void Dec_lag3(Word16 index, /* i : received pitch index */ 108 Word16 T0_min, /* i : minimum of search range */ 109 Word16 T0_max, /* i : maximum of search range */ 110 Word16 i_subfr, /* i : subframe flag */ 111 Word16 T0_prev, /* i : integer pitch delay of last subframe 112 used in 2nd and 4th subframes */ 113 Word16 * T0, /* o : integer part of pitch lag */ 114 Word16 * T0_frac, /* o : fractional part of pitch lag */ 115 Word16 flag4, /* i : flag for encoding with 4 bits */ 116 Flag * pOverflow /* o : Flag set when overflow occurs */ 117 ); 118 119 /*---------------------------------------------------------------------------- 120 ; END 121 ----------------------------------------------------------------------------*/ 122 #ifdef __cplusplus 123 } 124 #endif 125 126 #endif /* _DEC_LAG_3_H_ */ 127 128