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 ******************************************************************************** 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 54 extern "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