opencore/codecs_v2/audio/gsm_amr/amr_nb/common/src/gains_tbl.cpp

   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: gains_tbl.cpp
  32
  33 ------------------------------------------------------------------------------
  34  MODULE DESCRIPTION
  35
  36 ------------------------------------------------------------------------------
  37 */
  38
  39 /*----------------------------------------------------------------------------
  40 ; INCLUDES
  41 ----------------------------------------------------------------------------*/
  42 #include "typedef.h"
  43
  44 /*--------------------------------------------------------------------------*/
  45 #ifdef __cplusplus
  46 extern "C"
  47 {
  48 #endif
  49
  50     /*----------------------------------------------------------------------------
  51     ; MACROS
  52     ; [Define module specific macros here]
  53     ----------------------------------------------------------------------------*/
  54
  55     /*----------------------------------------------------------------------------
  56     ; DEFINES
  57     ; [Include all pre-processor statements here. Include conditional
  58     ; compile variables also.]
  59     ----------------------------------------------------------------------------*/
  60 #define NB_QUA_PITCH 16
  61 #define NB_QUA_CODE 32
  62
  63     /*----------------------------------------------------------------------------
  64     ; LOCAL FUNCTION DEFINITIONS
  65     ; [List function prototypes here]
  66     ----------------------------------------------------------------------------*/
  67
  68     /*----------------------------------------------------------------------------
  69     ; LOCAL VARIABLE DEFINITIONS
  70     ; [Variable declaration - defined here and used outside this module]
  71     ----------------------------------------------------------------------------*/
  72
  73
  74     extern const Word16 qua_gain_pitch[];
  75     const Word16 qua_gain_pitch[NB_QUA_PITCH] =
  76     {
  77         0, 3277, 6556, 8192, 9830, 11469, 12288, 13107,
  78         13926, 14746, 15565, 16384, 17203, 18022, 18842, 19661
  79     };
  80
  81
  82     extern const Word16 qua_gain_code[];
  83     const Word16 qua_gain_code[(NB_QUA_CODE+1)*3] =
  84     {
  85         /* gain factor (g_fac) and quantized energy error (qua_ener_MR122, qua_ener)
  86          * are stored:
  87          *
  88          * qua_ener_MR122 = log2(g_fac)      (not the rounded floating point value, but
  89          *                                    the value the original EFR algorithm
  90          *                                    calculates from g_fac [using Log2])
  91          * qua_ener       = 20*log10(g_fac); (rounded floating point value)
  92          *
  93          *
  94          * g_fac (Q11), qua_ener_MR122 (Q10), qua_ener (Q10)
  95          */
  96         159,                -3776,          -22731,
  97         206,                -3394,          -20428,
  98         268,                -3005,          -18088,
  99         349,                -2615,          -15739,
 100         419,                -2345,          -14113,
 101         482,                -2138,          -12867,
 102         554,                -1932,          -11629,
 103         637,                -1726,          -10387,
 104         733,                -1518,           -9139,
 105         842,                -1314,           -7906,
 106         969,                -1106,           -6656,
 107         1114,                 -900,           -5416,
 108         1281,                 -694,           -4173,
 109         1473,                 -487,           -2931,
 110         1694,                 -281,           -1688,
 111         1948,                  -75,            -445,
 112         2241,                  133,             801,
 113         2577,                  339,            2044,
 114         2963,                  545,            3285,
 115         3408,                  752,            4530,
 116         3919,                  958,            5772,
 117         4507,                 1165,            7016,
 118         5183,                 1371,            8259,
 119         5960,                 1577,            9501,
 120         6855,                 1784,           10745,
 121         7883,                 1991,           11988,
 122         9065,                 2197,           13231,
 123         10425,                 2404,           14474,
 124         12510,                 2673,           16096,
 125         16263,                 3060,           18429,
 126         21142,                 3448,           20763,
 127         27485,                 3836,           23097,
 128         27485,                 3836,           23097
 129     };
 130
 131     /*--------------------------------------------------------------------------*/
 132 #ifdef __cplusplus
 133 }
 134 #endif
 135
 136 /*
 137 ------------------------------------------------------------------------------
 138  FUNCTION NAME:
 139 ------------------------------------------------------------------------------
 140  INPUT AND OUTPUT DEFINITIONS
 141
 142  Inputs:
 143     None
 144
 145  Outputs:
 146     None
 147
 148  Returns:
 149     None
 150
 151  Global Variables Used:
 152     None
 153
 154  Local Variables Needed:
 155     None
 156
 157 ------------------------------------------------------------------------------
 158  FUNCTION DESCRIPTION
 159
 160  None
 161
 162 ------------------------------------------------------------------------------
 163  REQUIREMENTS
 164
 165  None
 166
 167 ------------------------------------------------------------------------------
 168  REFERENCES
 169
 170  [1] gains.tab,  UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
 171
 172 ------------------------------------------------------------------------------
 173  PSEUDO-CODE
 174
 175
 176 ------------------------------------------------------------------------------
 177  CAUTION [optional]
 178  [State any special notes, constraints or cautions for users of this function]
 179
 180 ------------------------------------------------------------------------------
 181 */
 182
 183 /*----------------------------------------------------------------------------
 184 ; FUNCTION CODE
 185 ----------------------------------------------------------------------------*/
 186
 187
 188