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/src/include/lag_wind.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             : lag_wind.h
49      Purpose          : Lag windowing of autocorrelations.
50
51------------------------------------------------------------------------------
52*/
53
54#ifndef _LAG_WIND_H_
55#define _LAG_WIND_H_
56#define lag_wind_h "$Id $"
57
58/*----------------------------------------------------------------------------
59; INCLUDES
60----------------------------------------------------------------------------*/
61#include "typedef.h"
62
63/*--------------------------------------------------------------------------*/
64#ifdef __cplusplus
65extern "C"
66{
67#endif
68
69    /*----------------------------------------------------------------------------
70    ; MACROS
71    ; [Define module specific macros here]
72    ----------------------------------------------------------------------------*/
73
74    /*----------------------------------------------------------------------------
75    ; DEFINES
76    ; [Include all pre-processor statements here.]
77    ----------------------------------------------------------------------------*/
78
79    /*----------------------------------------------------------------------------
80    ; EXTERNAL VARIABLES REFERENCES
81    ; [Declare variables used in this module but defined elsewhere]
82    ----------------------------------------------------------------------------*/
83
84    /*----------------------------------------------------------------------------
85    ; SIMPLE TYPEDEF'S
86    ----------------------------------------------------------------------------*/
87
88    /*----------------------------------------------------------------------------
89    ; ENUMERATED TYPEDEF'S
90    ----------------------------------------------------------------------------*/
91
92    /*----------------------------------------------------------------------------
93    ; STRUCTURES TYPEDEF'S
94    ----------------------------------------------------------------------------*/
95
96
97    /*----------------------------------------------------------------------------
98    ; GLOBAL FUNCTION DEFINITIONS
99    ; [List function prototypes here]
100    ----------------------------------------------------------------------------*/
101    void Lag_window(
102        Word16 m,          /* (i)    : LPC order                                */
103        Word16 r_h[],      /* (i/o)  : Autocorrelations  (msb)                  */
104        Word16 r_l[],      /* (i/o)  : Autocorrelations  (lsb)                  */
105        Flag   *pOverflow
106    );
107
108
109
110#ifdef __cplusplus
111}
112#endif
113
114#endif  /* _LAG_WIND_H_ */
115
116
117
118