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  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
64 extern "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