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 Filename: /audio/gsm_amr/c/include/lsp_lsf.h
31
32------------------------------------------------------------------------------
33 REVISION HISTORY
34
35 Description: Placed header file in the proper template format.  Added
36 parameter pOverflow for the basic math ops.
37
38 Description: Moved _cplusplus #ifdef after Include section.
39
40 Description:
41
42------------------------------------------------------------------------------
43 INCLUDE DESCRIPTION
44
45 This file contains all the constant definitions and prototype definitions
46 needed by the lsp_lsf.c
47
48------------------------------------------------------------------------------
49*/
50
51/*----------------------------------------------------------------------------
52; CONTINUE ONLY IF NOT ALREADY DEFINED
53----------------------------------------------------------------------------*/
54#ifndef lsp_lsf_h
55#define lsp_lsf_h "$Id $"
56
57/*----------------------------------------------------------------------------
58; INCLUDES
59----------------------------------------------------------------------------*/
60#include "typedef.h"
61
62/*--------------------------------------------------------------------------*/
63#ifdef __cplusplus
64extern "C"
65{
66#endif
67
68    /*----------------------------------------------------------------------------
69    ; MACROS
70    ; Define module specific macros here
71    ----------------------------------------------------------------------------*/
72
73    /*----------------------------------------------------------------------------
74    ; DEFINES
75    ; Include all pre-processor statements here.
76    ----------------------------------------------------------------------------*/
77
78    /*----------------------------------------------------------------------------
79    ; EXTERNAL VARIABLES REFERENCES
80    ; Declare variables used in this module but defined elsewhere
81    ----------------------------------------------------------------------------*/
82
83    /*----------------------------------------------------------------------------
84    ; SIMPLE TYPEDEF'S
85    ----------------------------------------------------------------------------*/
86
87    /*----------------------------------------------------------------------------
88    ; ENUMERATED TYPEDEF'S
89    ----------------------------------------------------------------------------*/
90
91    /*----------------------------------------------------------------------------
92    ; STRUCTURES TYPEDEF'S
93    ----------------------------------------------------------------------------*/
94
95    /*----------------------------------------------------------------------------
96    ; GLOBAL FUNCTION DEFINITIONS
97    ; Function Prototype declaration
98    ----------------------------------------------------------------------------*/
99
100    void Lsf_lsp(
101        Word16 lsf[],      /* (i)    : lsf[m] normalized (range: 0.0<=val<=0.5) */
102        Word16 lsp[],      /* (o)    : lsp[m] (range: -1<=val<1)                */
103        Word16 m,          /* (i)    : LPC order                                */
104        Flag  *pOverflow   /* (o)    : Flag set when overflow occurs            */
105    );
106    void Lsp_lsf(
107        Word16 lsp[],      /* (i)    : lsp[m] (range: -1<=val<1)                */
108        Word16 lsf[],      /* (o)    : lsf[m] normalized (range: 0.0<=val<=0.5) */
109        Word16 m,          /* (i)    : LPC order                                */
110        Flag  *pOverflow   /* (o)    : Flag set when overflow occurs            */
111    );
112
113    /*----------------------------------------------------------------------------
114    ; END
115    ----------------------------------------------------------------------------*/
116#ifdef __cplusplus
117}
118#endif
119
120#endif /* _LSP_LSF_H_ */
121
122