gmed_n.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*      GSM AMR-NB speech codec   R98   Version 7.5.0   March 2, 2001
33*                                R99   Version 3.2.0
34*                                REL-4 Version 4.0.0
35*
36********************************************************************************
37*
38*      File             : gmed_n.h
39*      Purpose          : calculates N-point median.
40*
41********************************************************************************
42*/
43#ifndef gmed_n_h
44#define gmed_n_h "$Id $"
45
46/*
47********************************************************************************
48*                         INCLUDE FILES
49********************************************************************************
50*/
51#include "typedef.h"
52
53#ifdef __cplusplus
54extern "C"
55{
56#endif
57
58    /*
59    ********************************************************************************
60    *                         DEFINITION OF DATA TYPES
61    ********************************************************************************
62    */
63
64    /*
65    ********************************************************************************
66    *                         DECLARATION OF PROTOTYPES
67    ********************************************************************************
68    */
69    Word16 gmed_n(    /* o : index of the median value (0...N-1)      */
70        Word16 ind[], /* i : Past gain values                         */
71        Word16 n      /* i : The number of gains; this routine        */
72        /*     is only valid for a odd number of gains  */
73    );
74
75
76#ifdef __cplusplus
77}
78#endif
79
80#endif
81