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