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/****************************************************************************************
19Portions 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)
26Permission to distribute, modify and use this file under the standard license
27terms 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
69extern "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