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 Filename: /audio/gsm_amr/c/include/qua_gain.h 32 33 ------------------------------------------------------------------------------ 34 REVISION HISTORY 35 36 Description: Placed header file in the proper template format. Added 37 parameter pOverflow for the basic math ops. 38 39 Description: Moved _cplusplus #ifdef after Include section. 40 41 Who: Date: 42 Description: 43 44 ------------------------------------------------------------------------------ 45 INCLUDE DESCRIPTION 46 47 This file contains all the constant definitions and prototype definitions 48 needed by the file, qua_gain.c 49 50 ------------------------------------------------------------------------------ 51 */ 52 53 /*---------------------------------------------------------------------------- 54 ; CONTINUE ONLY IF NOT ALREADY DEFINED 55 ----------------------------------------------------------------------------*/ 56 #ifndef qua_gain_h 57 #define qua_gain_h "$Id $" 58 59 /*---------------------------------------------------------------------------- 60 ; INCLUDES 61 ----------------------------------------------------------------------------*/ 62 #include "typedef.h" 63 #include "gc_pred.h" 64 #include "mode.h" 65 66 67 /*--------------------------------------------------------------------------*/ 68 #ifdef __cplusplus 69 extern "C" 70 { 71 #endif 72 73 /*---------------------------------------------------------------------------- 74 ; MACROS 75 ; Define module specific macros here 76 ----------------------------------------------------------------------------*/ 77 78 /*---------------------------------------------------------------------------- 79 ; DEFINES 80 ; Include all pre-processor statements here. 81 ----------------------------------------------------------------------------*/ 82 #define VQ_SIZE_HIGHRATES 128 83 #define VQ_SIZE_LOWRATES 64 84 85 /*---------------------------------------------------------------------------- 86 ; EXTERNAL VARIABLES REFERENCES 87 ; Declare variables used in this module but defined elsewhere 88 ----------------------------------------------------------------------------*/ 89 90 /*---------------------------------------------------------------------------- 91 ; SIMPLE TYPEDEF'S 92 ----------------------------------------------------------------------------*/ 93 94 /*---------------------------------------------------------------------------- 95 ; ENUMERATED TYPEDEF'S 96 ----------------------------------------------------------------------------*/ 97 98 /*---------------------------------------------------------------------------- 99 ; STRUCTURES TYPEDEF'S 100 ----------------------------------------------------------------------------*/ 101 102 /*---------------------------------------------------------------------------- 103 ; GLOBAL FUNCTION DEFINITIONS 104 ; Function Prototype declaration 105 ----------------------------------------------------------------------------*/ 106 107 Word16 108 Qua_gain( /* o : index of quantization. */ 109 enum Mode mode, /* i : AMR mode */ 110 Word16 exp_gcode0, /* i : predicted CB gain (exponent), Q0 */ 111 Word16 frac_gcode0, /* i : predicted CB gain (fraction), Q15 */ 112 Word16 frac_coeff[], /* i : energy coeff. (5), fraction part, Q15 */ 113 Word16 exp_coeff[], /* i : energy coeff. (5), exponent part, Q0 */ 114 /* (frac_coeff and exp_coeff computed in */ 115 /* calc_filt_energies()) */ 116 Word16 gp_limit, /* i : pitch gain limit */ 117 Word16 *gain_pit, /* o : Pitch gain, Q14 */ 118 Word16 *gain_cod, /* o : Code gain, Q1 */ 119 Word16 *qua_ener_MR122, /* o : quantized energy error, Q10 */ 120 /* (for MR122 MA predictor update) */ 121 Word16 *qua_ener, /* o : quantized energy error, Q10 */ 122 /* (for other MA predictor update) */ 123 Flag *pOverflow /* o : overflow indicator */ 124 ); 125 /*---------------------------------------------------------------------------- 126 ; END 127 ----------------------------------------------------------------------------*/ 128 #ifdef __cplusplus 129 } 130 #endif 131 132 #endif /* qua_gain_h */ 133 134 135 136
