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 33 34 Filename: /audio/gsm_amr/c/include/g_pitch.h 35 36 37 Date: 02/01/2002 38 39 ------------------------------------------------------------------------------ 40 REVISION HISTORY 41 42 Description: Moved _cplusplus #ifdef after Include section. 43 44 Description: 45 46 47 ------------------------------------------------------------------------------ 48 INCLUDE DESCRIPTION 49 50 This file contains all the constant definitions and prototype definitions 51 needed by the G_pitch() function. 52 53 ------------------------------------------------------------------------------ 54 */ 55 56 #ifndef G_PITCH_H 57 #define G_PITCH_H 58 59 /*---------------------------------------------------------------------------- 60 ; INCLUDES 61 ----------------------------------------------------------------------------*/ 62 #include "mode.h" 63 #include "typedef.h" 64 65 /*--------------------------------------------------------------------------*/ 66 #ifdef __cplusplus 67 extern "C" 68 { 69 #endif 70 71 /*---------------------------------------------------------------------------- 72 ; MACROS 73 ; Define module specific macros here 74 ----------------------------------------------------------------------------*/ 75 76 /*---------------------------------------------------------------------------- 77 ; DEFINES 78 ; Include all pre-processor statements here. 79 ----------------------------------------------------------------------------*/ 80 81 /*---------------------------------------------------------------------------- 82 ; EXTERNAL VARIABLES REFERENCES 83 ; Declare variables used in this module but defined elsewhere 84 ----------------------------------------------------------------------------*/ 85 86 /*---------------------------------------------------------------------------- 87 ; SIMPLE TYPEDEF'S 88 ----------------------------------------------------------------------------*/ 89 90 /*---------------------------------------------------------------------------- 91 ; ENUMERATED TYPEDEF'S 92 ----------------------------------------------------------------------------*/ 93 94 /*---------------------------------------------------------------------------- 95 ; STRUCTURES TYPEDEF'S 96 ----------------------------------------------------------------------------*/ 97 98 /*---------------------------------------------------------------------------- 99 ; GLOBAL FUNCTION DEFINITIONS 100 ; Function Prototype declaration 101 ----------------------------------------------------------------------------*/ 102 Word16 G_pitch( /* o : Gain of pitch lag saturated to 1.2 */ 103 enum Mode mode, /* i : AMR mode */ 104 Word16 xn[], /* i : Pitch target. */ 105 Word16 y1[], /* i : Filtered adaptive codebook. */ 106 Word16 g_coeff[], /* i : Correlations need for gain quantization */ 107 Word16 L_subfr, /* i : Length of subframe. */ 108 Flag *pOverflow /* i/o : Overflow flag */ 109 ); 110 111 /*---------------------------------------------------------------------------- 112 ; END 113 ----------------------------------------------------------------------------*/ 114 #ifdef __cplusplus 115 } 116 #endif 117 118 #endif /* _G_PITCH_H_ */ 119 120