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/src/include/inter_36.h
35 
36      Date: 01/29/2002
37 
38 ------------------------------------------------------------------------------
39  REVISION HISTORY
40 
41  Description: Moved _cplusplus #ifdef after Include section.
42 
43  Description:
44 
45 ------------------------------------------------------------------------------
46  INCLUDE DESCRIPTION
47 
48       File             : inter_36.h
49       Purpose          : Interpolating the normalized correlation
50                        : with 1/3 or 1/6 resolution.
51 
52 ------------------------------------------------------------------------------
53 */
54 
55 #ifndef _INTER_36_H_
56 #define _INTER_36_H_
57 #define inter_36_h "$Id $"
58 
59 /*----------------------------------------------------------------------------
60 ; INCLUDES
61 ----------------------------------------------------------------------------*/
62 #include "typedef.h"
63 
64 /*--------------------------------------------------------------------------*/
65 #ifdef __cplusplus
66 extern "C"
67 {
68 #endif
69 
70     /*----------------------------------------------------------------------------
71     ; MACROS
72     ; [Define module specific macros here]
73     ----------------------------------------------------------------------------*/
74 
75     /*----------------------------------------------------------------------------
76     ; DEFINES
77     ; [Include all pre-processor statements here.]
78     ----------------------------------------------------------------------------*/
79 
80     /*----------------------------------------------------------------------------
81     ; EXTERNAL VARIABLES REFERENCES
82     ; [Declare variables used in this module but defined elsewhere]
83     ----------------------------------------------------------------------------*/
84 
85     /*----------------------------------------------------------------------------
86     ; SIMPLE TYPEDEF'S
87     ----------------------------------------------------------------------------*/
88 
89     /*----------------------------------------------------------------------------
90     ; ENUMERATED TYPEDEF'S
91     ----------------------------------------------------------------------------*/
92 
93     /*----------------------------------------------------------------------------
94     ; STRUCTURES TYPEDEF'S
95     ----------------------------------------------------------------------------*/
96 
97 
98     /*----------------------------------------------------------------------------
99     ; GLOBAL FUNCTION DEFINITIONS
100     ; [List function prototypes here]
101     ----------------------------------------------------------------------------*/
102     Word16 Interpol_3or6(   /* (o)  : interpolated value                        */
103         Word16 *x,          /* (i)  : input vector                              */
104         Word16 frac,        /* (i)  : fraction  (-2..2 for 3*, -3..3 for 6*)    */
105         Word16 flag3,        /* (i)  : if set, upsampling rate = 3 (6 otherwise) */
106         Flag   *pOverflow
107     );
108 
109 
110 
111 #ifdef __cplusplus
112 }
113 #endif
114 
115 #endif  /* _INTER_36_H_ */
116 
117 
118