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/src/include/dec_gain.h 35 36 Date: 01/31/2002 37 38 ------------------------------------------------------------------------------ 39 REVISION HISTORY 40 41 Description: Moved _cplusplus #ifdef after Include section. 42 43 Description: 44 45 ------------------------------------------------------------------------------ 46 INCLUDE DESCRIPTION 47 48 File : dec_gain.h 49 Purpose : Decode the pitch and codebook gains 50 51 ------------------------------------------------------------------------------ 52 */ 53 54 #ifndef _DEC_GAIN_H_ 55 #define _DEC_GAIN_H_ 56 #define dec_gain_h "$Id $" 57 58 /*---------------------------------------------------------------------------- 59 ; INCLUDES 60 ----------------------------------------------------------------------------*/ 61 #include "typedef.h" 62 #include "gc_pred.h" 63 #include "mode.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 ; [List function prototypes here] 101 ----------------------------------------------------------------------------*/ 102 103 /* 104 * FUNCTION: Dec_gain() 105 * PURPOSE: Decode the pitch and codebook gains 106 */ 107 void Dec_gain( 108 gc_predState *pred_state, /* i/o: MA predictor state */ 109 enum Mode mode, /* i : AMR mode */ 110 Word16 index, /* i : index of quantization. */ 111 Word16 code[], /* i : Innovative vector. */ 112 Word16 evenSubfr, /* i : Flag for even subframes */ 113 Word16 * gain_pit, /* o : Pitch gain. */ 114 Word16 * gain_cod, /* o : Code gain. */ 115 Flag * pOverflow 116 ); 117 118 119 120 #ifdef __cplusplus 121 } 122 #endif 123 124 #endif /* _DEC_GAIN_H_ */ 125 126 127 128