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/set_sign.h 35 36 Date: 08/11/2000 37 38 ------------------------------------------------------------------------------ 39 REVISION HISTORY 40 41 42 Description: Changed function prototype for set_sign12k2(); pointer to 43 overflow flag is passed in as a parameter. 44 45 Description: Moved _cplusplus #ifdef after Include section. 46 47 Description: 48 49 50 ------------------------------------------------------------------------------ 51 INCLUDE DESCRIPTION 52 53 This file contains all the constant definitions and prototype definitions 54 needed by the set_sign() and set_sign12k2() function. 55 56 ------------------------------------------------------------------------------ 57 */ 58 59 #ifndef SET_SIGN_H 60 #define SET_SIGN_H "@(#)$Id $" 61 62 /*---------------------------------------------------------------------------- 63 ; INCLUDES 64 ----------------------------------------------------------------------------*/ 65 #include "basicop_malloc.h" 66 67 /*--------------------------------------------------------------------------*/ 68 #ifdef __cplusplus 69 extern "C" 70 { 71 #endif 72 73 /*---------------------------------------------------------------------------- 74 ; MACROS 75 ; Define module specific macros here 76 ----------------------------------------------------------------------------*/ 77 78 /*---------------------------------------------------------------------------- 79 ; DEFINES 80 ; Include all pre-processor statements here. 81 ----------------------------------------------------------------------------*/ 82 83 /*---------------------------------------------------------------------------- 84 ; EXTERNAL VARIABLES REFERENCES 85 ; Declare variables used in this module but defined elsewhere 86 ----------------------------------------------------------------------------*/ 87 88 /*---------------------------------------------------------------------------- 89 ; SIMPLE TYPEDEF'S 90 ----------------------------------------------------------------------------*/ 91 92 /*---------------------------------------------------------------------------- 93 ; ENUMERATED TYPEDEF'S 94 ----------------------------------------------------------------------------*/ 95 96 /*---------------------------------------------------------------------------- 97 ; STRUCTURES TYPEDEF'S 98 ----------------------------------------------------------------------------*/ 99 100 /*---------------------------------------------------------------------------- 101 ; GLOBAL FUNCTION DEFINITIONS 102 ; Function Prototype declaration 103 ----------------------------------------------------------------------------*/ 104 void set_sign(Word16 dn[], /* i/o : correlation between target and h[] */ 105 Word16 sign[], /* o : sign of dn[] */ 106 Word16 dn2[], /* o : maximum of correlation in each track. */ 107 Word16 n /* i : # of maximum correlations in dn2[] */ 108 ); 109 110 void set_sign12k2( 111 Word16 dn[], /* i/o : correlation between target and h[] */ 112 Word16 cn[], /* i : residual after long term prediction */ 113 Word16 sign[], /* o : sign of d[n] */ 114 Word16 pos_max[], /* o : position of maximum correlation */ 115 Word16 nb_track, /* i : number of tracks tracks */ 116 Word16 ipos[], /* o : starting position for each pulse */ 117 Word16 step, /* i : the step size in the tracks */ 118 Flag *pOverflow /* i/o : overflow flag */ 119 ); 120 /*---------------------------------------------------------------------------- 121 ; END 122 ----------------------------------------------------------------------------*/ 123 #ifdef __cplusplus 124 } 125 #endif 126 127 #endif /* _SET_SIGN_H_ */ 128
