1 /* ------------------------------------------------------------------
2 * Copyright (C) 1998-2009 PacketVideo
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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
14 * See the License for the specific language governing permissions
15 * and limitations under the License.
16 * -------------------------------------------------------------------
18 /****************************************************************************************
19 Portions of this file are derived from the following 3GPP standard:
22 ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
23 Available from http://www.3gpp.org
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 ****************************************************************************************/
30 ------------------------------------------------------------------------------
34 Filename: /audio/gsm_amr/c/include/set_sign.h
38 ------------------------------------------------------------------------------
42 Description: Changed function prototype for set_sign12k2(); pointer to
43 overflow flag is passed in as a parameter.
45 Description: Moved _cplusplus #ifdef after Include section.
50 ------------------------------------------------------------------------------
53 This file contains all the constant definitions and prototype definitions
54 needed by the set_sign() and set_sign12k2() function.
56 ------------------------------------------------------------------------------
60 #define SET_SIGN_H "@(#)$Id $"
62 /*----------------------------------------------------------------------------
64 ----------------------------------------------------------------------------*/
65 #include "basicop_malloc.h"
67 /*--------------------------------------------------------------------------*/
73 /*----------------------------------------------------------------------------
75 ; Define module specific macros here
76 ----------------------------------------------------------------------------*/
78 /*----------------------------------------------------------------------------
80 ; Include all pre-processor statements here.
81 ----------------------------------------------------------------------------*/
83 /*----------------------------------------------------------------------------
84 ; EXTERNAL VARIABLES REFERENCES
85 ; Declare variables used in this module but defined elsewhere
86 ----------------------------------------------------------------------------*/
88 /*----------------------------------------------------------------------------
90 ----------------------------------------------------------------------------*/
92 /*----------------------------------------------------------------------------
93 ; ENUMERATED TYPEDEF'S
94 ----------------------------------------------------------------------------*/
96 /*----------------------------------------------------------------------------
97 ; STRUCTURES TYPEDEF'S
98 ----------------------------------------------------------------------------*/
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[] */
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 */
120 /*----------------------------------------------------------------------------
122 ----------------------------------------------------------------------------*/
127 #endif /* _SET_SIGN_H_ */