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/include/lsp_lsf.h 31 32 ------------------------------------------------------------------------------ 33 REVISION HISTORY 34 35 Description: Placed header file in the proper template format. Added 36 parameter pOverflow for the basic math ops. 37 38 Description: Moved _cplusplus #ifdef after Include section. 39 40 Description: 41 42 ------------------------------------------------------------------------------ 43 INCLUDE DESCRIPTION 44 45 This file contains all the constant definitions and prototype definitions 46 needed by the lsp_lsf.c 47 48 ------------------------------------------------------------------------------ 49 */ 50 51 /*---------------------------------------------------------------------------- 52 ; CONTINUE ONLY IF NOT ALREADY DEFINED 53 ----------------------------------------------------------------------------*/ 54 #ifndef lsp_lsf_h 55 #define lsp_lsf_h "$Id $" 56 57 /*---------------------------------------------------------------------------- 58 ; INCLUDES 59 ----------------------------------------------------------------------------*/ 60 #include "typedef.h" 61 62 /*--------------------------------------------------------------------------*/ 63 #ifdef __cplusplus 64 extern "C" 65 { 66 #endif 67 68 /*---------------------------------------------------------------------------- 69 ; MACROS 70 ; Define module specific macros here 71 ----------------------------------------------------------------------------*/ 72 73 /*---------------------------------------------------------------------------- 74 ; DEFINES 75 ; Include all pre-processor statements here. 76 ----------------------------------------------------------------------------*/ 77 78 /*---------------------------------------------------------------------------- 79 ; EXTERNAL VARIABLES REFERENCES 80 ; Declare variables used in this module but defined elsewhere 81 ----------------------------------------------------------------------------*/ 82 83 /*---------------------------------------------------------------------------- 84 ; SIMPLE TYPEDEF'S 85 ----------------------------------------------------------------------------*/ 86 87 /*---------------------------------------------------------------------------- 88 ; ENUMERATED TYPEDEF'S 89 ----------------------------------------------------------------------------*/ 90 91 /*---------------------------------------------------------------------------- 92 ; STRUCTURES TYPEDEF'S 93 ----------------------------------------------------------------------------*/ 94 95 /*---------------------------------------------------------------------------- 96 ; GLOBAL FUNCTION DEFINITIONS 97 ; Function Prototype declaration 98 ----------------------------------------------------------------------------*/ 99 100 void Lsf_lsp( 101 Word16 lsf[], /* (i) : lsf[m] normalized (range: 0.0<=val<=0.5) */ 102 Word16 lsp[], /* (o) : lsp[m] (range: -1<=val<1) */ 103 Word16 m, /* (i) : LPC order */ 104 Flag *pOverflow /* (o) : Flag set when overflow occurs */ 105 ); 106 void Lsp_lsf( 107 Word16 lsp[], /* (i) : lsp[m] (range: -1<=val<1) */ 108 Word16 lsf[], /* (o) : lsf[m] normalized (range: 0.0<=val<=0.5) */ 109 Word16 m, /* (i) : LPC order */ 110 Flag *pOverflow /* (o) : Flag set when overflow occurs */ 111 ); 112 113 /*---------------------------------------------------------------------------- 114 ; END 115 ----------------------------------------------------------------------------*/ 116 #ifdef __cplusplus 117 } 118 #endif 119 120 #endif /* _LSP_LSF_H_ */ 121 122