dec_lag6.h revision 4f1efc098cb5791c3e9f483f2af84aef70d2d0a0
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/dec_lag6.h
35
36     Date: 01/29/2002
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 dec_lag6.c
53
54------------------------------------------------------------------------------
55*/
56
57/*----------------------------------------------------------------------------
58; CONTINUE ONLY IF NOT ALREADY DEFINED
59----------------------------------------------------------------------------*/
60#ifndef dec_lag6_h
61#define dec_lag6_h "$Id $"
62
63
64/*----------------------------------------------------------------------------
65; INCLUDES
66----------------------------------------------------------------------------*/
67#include "typedef.h"
68
69/*--------------------------------------------------------------------------*/
70#ifdef __cplusplus
71extern "C"
72{
73#endif
74
75    /*----------------------------------------------------------------------------
76    ; MACROS
77    ; Define module specific macros here
78    ----------------------------------------------------------------------------*/
79
80    /*----------------------------------------------------------------------------
81    ; DEFINES
82    ; Include all pre-processor statements here.
83    ----------------------------------------------------------------------------*/
84
85    /*----------------------------------------------------------------------------
86    ; EXTERNAL VARIABLES REFERENCES
87    ; Declare variables used in this module but defined elsewhere
88    ----------------------------------------------------------------------------*/
89
90    /*----------------------------------------------------------------------------
91    ; SIMPLE TYPEDEF'S
92    ----------------------------------------------------------------------------*/
93
94    /*----------------------------------------------------------------------------
95    ; ENUMERATED TYPEDEF'S
96    ----------------------------------------------------------------------------*/
97
98    /*----------------------------------------------------------------------------
99    ; STRUCTURES TYPEDEF'S
100    ----------------------------------------------------------------------------*/
101
102    /*----------------------------------------------------------------------------
103    ; GLOBAL FUNCTION DEFINITIONS
104    ; Function Prototype declaration
105    ----------------------------------------------------------------------------*/
106    void Dec_lag6(
107        Word16 index,      /* input : received pitch index           */
108        Word16 pit_min,    /* input : minimum pitch lag              */
109        Word16 pit_max,    /* input : maximum pitch lag              */
110        Word16 i_subfr,    /* input : subframe flag                  */
111        Word16 *T0,        /* in/out: integer part of pitch lag      */
112        Word16 *T0_frac,   /* output: fractional part of pitch lag   */
113        Flag   * pOverflow  /* o : Flag set when overflow occurs     */
114    );
115
116    /*----------------------------------------------------------------------------
117    ; END
118    ----------------------------------------------------------------------------*/
119#ifdef __cplusplus
120}
121#endif
122
123#endif /* _DEC_LAG_6_H_ */
124
125