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/gain_q.h 35 36 Date: 02/05/2002 37 38 ------------------------------------------------------------------------------ 39 REVISION HISTORY 40 41 Description: Placed header file in the proper template format. Added 42 parameter pOverflow. 43 44 Description: Changed definition of... 45 46 gc_predState gc_predSt; 47 gc_predState gc_predUnqSt; 48 49 in the structure typedef. These are no longer pointers, which avoids 50 the need to malloc memory for the pointers. They are, rather, the actual 51 structure declared within the gainQuantState structure. 52 53 Description: Replaced "int" and/or "char" with OSCL defined types. 54 55 Description: Moved _cplusplus #ifdef after Include section. 56 57 Description: 58 59 ------------------------------------------------------------------------------ 60 INCLUDE DESCRIPTION 61 62 This file contains all the constant definitions and prototype definitions 63 needed by the file, gain_q.c 64 65 ------------------------------------------------------------------------------ 66 */ 67 68 /*---------------------------------------------------------------------------- 69 ; CONTINUE ONLY IF NOT ALREADY DEFINED 70 ----------------------------------------------------------------------------*/ 71 #ifndef gain_q_h 72 #define gain_q_h "$Id $" 73 74 /*---------------------------------------------------------------------------- 75 ; INCLUDES 76 ----------------------------------------------------------------------------*/ 77 #include "typedef.h" 78 #include "mode.h" 79 #include "gc_pred.h" 80 #include "g_adapt.h" 81 82 /*--------------------------------------------------------------------------*/ 83 #ifdef __cplusplus 84 extern "C" 85 { 86 #endif 87 88 /*---------------------------------------------------------------------------- 89 ; MACROS 90 ; Define module specific macros here 91 ----------------------------------------------------------------------------*/ 92 93 /*---------------------------------------------------------------------------- 94 ; DEFINES 95 ; Include all pre-processor statements here. 96 ----------------------------------------------------------------------------*/ 97 98 /*---------------------------------------------------------------------------- 99 ; EXTERNAL VARIABLES REFERENCES 100 ; Declare variables used in this module but defined elsewhere 101 ----------------------------------------------------------------------------*/ 102 103 /*---------------------------------------------------------------------------- 104 ; SIMPLE TYPEDEF'S 105 ----------------------------------------------------------------------------*/ 106 107 /*---------------------------------------------------------------------------- 108 ; ENUMERATED TYPEDEF'S 109 ----------------------------------------------------------------------------*/ 110 111 /*---------------------------------------------------------------------------- 112 ; STRUCTURES TYPEDEF'S 113 ----------------------------------------------------------------------------*/ 114 typedef struct 115 { 116 Word16 sf0_exp_gcode0; 117 Word16 sf0_frac_gcode0; 118 Word16 sf0_exp_target_en; 119 Word16 sf0_frac_target_en; 120 Word16 sf0_exp_coeff[5]; 121 Word16 sf0_frac_coeff[5]; 122 Word16 *gain_idx_ptr; 123 124 gc_predState gc_predSt; 125 gc_predState gc_predUnqSt; 126 GainAdaptState *adaptSt; 127 } gainQuantState; 128 129 /*---------------------------------------------------------------------------- 130 ; GLOBAL FUNCTION DEFINITIONS 131 ; Function Prototype declaration 132 ----------------------------------------------------------------------------*/ 133 Word16 gainQuant_init(gainQuantState **st); 134 /* initialize one instance of the pre processing state. 135 Stores pointer to filter status struct in *st. This pointer has to 136 be passed to gainQuant in each call. 137 returns 0 on success 138 */ 139 Word16 gainQuant_reset(gainQuantState *st); 140 /* reset of pre processing state (i.e. set state memory to zero) 141 returns 0 on success 142 */ 143 void gainQuant_exit(gainQuantState **st); 144 /* de-initialize pre processing state (i.e. free status struct) 145 stores NULL in *st 146 */ 147 148 void gainQuant( 149 gainQuantState *st, /* i/o : State struct */ 150 enum Mode mode, /* i : coder mode */ 151 Word16 res[], /* i : LP residual, Q0 */ 152 Word16 exc[], /* i : LTP excitation (unfiltered), Q0 */ 153 Word16 code[], /* i : CB innovation (unfiltered), Q13 */ 154 /* (unsharpened for MR475) */ 155 Word16 xn[], /* i : Target vector. */ 156 Word16 xn2[], /* i : Target vector. */ 157 Word16 y1[], /* i : Adaptive codebook. */ 158 Word16 Y2[], /* i : Filtered innovative vector. */ 159 Word16 g_coeff[], /* i : Correlations <xn y1> <y1 y1> */ 160 /* Compute in G_pitch(). */ 161 Word16 even_subframe, /* i : even subframe indicator flag */ 162 Word16 gp_limit, /* i : pitch gain limit */ 163 Word16 *sf0_gain_pit, /* o : Pitch gain sf 0. MR475 */ 164 Word16 *sf0_gain_cod, /* o : Code gain sf 0. MR475 */ 165 Word16 *gain_pit, /* i/o : Pitch gain. */ 166 Word16 *gain_cod, /* o : Code gain. */ 167 /* MR475: gain_* unquantized in even */ 168 /* subframes, quantized otherwise */ 169 Word16 **anap, /* o : Index of quantization */ 170 Flag *pOverflow /* o : overflow indicator */ 171 ); 172 173 /*---------------------------------------------------------------------------- 174 ; END 175 ----------------------------------------------------------------------------*/ 176 #ifdef __cplusplus 177 } 178 #endif 179 180 #endif /* gain_q_h */ 181 182 183
