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/enc_lag6.h
35 
36      Date: 02/05/2002
37 
38 ------------------------------------------------------------------------------
39  REVISION HISTORY
40 
41  Description: Placed header file in the proper template format.  Added
42  parameter pOverflow for the basic math ops.
43 
44  Description: Moved _cplusplus #ifdef after Include section.
45 
46  Description:
47 
48 ------------------------------------------------------------------------------
49  INCLUDE DESCRIPTION
50 
51  This file contains all the constant definitions and prototype definitions
52  needed by the file, enc_lag6.c
53 
54 ------------------------------------------------------------------------------
55 */
56 
57 /*----------------------------------------------------------------------------
58 ; CONTINUE ONLY IF NOT ALREADY DEFINED
59 ----------------------------------------------------------------------------*/
60 #ifndef enc_lag6_h
61 #define enc_lag6_h "$Id $"
62 
63 /*----------------------------------------------------------------------------
64 ; INCLUDES
65 ----------------------------------------------------------------------------*/
66 #include "typedef.h"
67 
68 /*--------------------------------------------------------------------------*/
69 #ifdef __cplusplus
70 extern "C"
71 {
72 #endif
73 
74     /*----------------------------------------------------------------------------
75     ; MACROS
76     ; Define module specific macros here
77     ----------------------------------------------------------------------------*/
78 
79     /*----------------------------------------------------------------------------
80     ; DEFINES
81     ; Include all pre-processor statements here.
82     ----------------------------------------------------------------------------*/
83 
84     /*----------------------------------------------------------------------------
85     ; EXTERNAL VARIABLES REFERENCES
86     ; Declare variables used in this module but defined elsewhere
87     ----------------------------------------------------------------------------*/
88 
89     /*----------------------------------------------------------------------------
90     ; SIMPLE TYPEDEF'S
91     ----------------------------------------------------------------------------*/
92 
93     /*----------------------------------------------------------------------------
94     ; ENUMERATED TYPEDEF'S
95     ----------------------------------------------------------------------------*/
96 
97     /*----------------------------------------------------------------------------
98     ; STRUCTURES TYPEDEF'S
99     ----------------------------------------------------------------------------*/
100 
101     /*----------------------------------------------------------------------------
102     ; GLOBAL FUNCTION DEFINITIONS
103     ; Function Prototype declaration
104     ----------------------------------------------------------------------------*/
105     Word16 Enc_lag6(         /* o  : Return index of encoding             */
106         Word16 T0,           /* i  : Pitch delay                          */
107         Word16 T0_frac,      /* i  : Fractional pitch delay               */
108         Word16 T0_min,       /* i  : minimum of search range              */
109         Word16 delta_flag,   /* i  : Flag for 1st (or 3rd) subframe       */
110         Flag   *pOverflow    /* o  : Overflow indicator                   */
111     );
112 
113     /*----------------------------------------------------------------------------
114     ; END
115     ----------------------------------------------------------------------------*/
116 #ifdef __cplusplus
117 }
118 #endif
119 
120 #endif /* enc_lag6_h */
121 
122 
123