lib/bladeenc/tables.h

   1 /*
   2                         (c) Copyright 1998-2000 - Tord Jansson
   3                         ======================================
   4
   5                 This file is part of the BladeEnc MP3 Encoder, based on
   6                 ISO's reference code for MPEG Layer 3 compression, and might
   7                 contain smaller or larger sections that are directly taken
   8                 from ISO's reference code.
   9
  10                 All changes to the ISO reference code herein are either
  11                 copyrighted by Tord Jansson (tord.jansson@swipnet.se)
  12                 or sublicensed to Tord Jansson by a third party.
  13
  14         BladeEnc is free software; you can redistribute this file
  15         and/or modify it under the terms of the GNU Lesser General Public
  16         License as published by the Free Software Foundation; either
  17         version 2.1 of the License, or (at your option) any later version.
  18
  19
  20
  21         ------------    Changes    ------------
  22
  23         2000-12-06  Andre Piotrowski
  24
  25         -       reformatted
  26 */
  27 #ifndef         __TABLES__
  28 #define         __TABLES__
  29
  30
  31
  32
  33
  34 #define         NEW_L3PARM_TABLES               1
  35 #define         CALC_NORM                               0
  36
  37
  38
  39
  40
  41 #define         CBANDS                                  63
  42 #define         CBANDS_s                                42
  43
  44
  45
  46
  47
  48 #if NEW_L3PARM_TABLES
  49
  50
  51         typedef         struct
  52                                 {
  53                                         int                                             cbmax_l;   /* number of valid entries */
  54                                         int                                             numlines_l[CBANDS];
  55                                         double                                  minval    [CBANDS];
  56                                         double                                  qthr_l    [CBANDS];
  57 #if !CALC_NORM   /* do we compute more exact values? */
  58                                         double                                  norm_l    [CBANDS];
  59 #endif
  60                                         double                                  bval_l    [CBANDS];
  61                                 }                                               l3_long_data;
  62
  63
  64         typedef         struct
  65                                 {
  66                                         int                                             cbmax_s;   /* number of valid entries */
  67                                         int                                             numlines_s[CBANDS_s];
  68                                         double                                  qthr_s    [CBANDS_s];
  69 #if !CALC_NORM   /* do we compute more exact values? */
  70                                         double                                  norm_s    [CBANDS_s];
  71 #endif
  72                                         double                                  SNR_s     [CBANDS_s];
  73                                         double                                  bval_s    [CBANDS_s];
  74                                 }                                               l3_short_data;
  75
  76
  77         typedef         struct
  78                                 {
  79                                         int                                             cbw_l     [CBANDS];
  80                                         int                                             bu_l      [CBANDS];
  81                                         int                                             bo_l      [CBANDS];
  82                                         double                                  w1_l      [CBANDS];
  83                                         double                                  w2_l      [CBANDS];
  84                                 }                                               l3_long_thres;
  85
  86
  87         typedef         struct
  88                                 {
  89                                         int                                             cbw_s     [CBANDS_s];
  90                                         int                                             bu_s      [CBANDS_s];
  91                                         int                                             bo_s      [CBANDS_s];
  92                                         double                                  w1_s      [CBANDS_s];
  93                                         double                                  w2_s      [CBANDS_s];
  94                                 }                                               l3_short_thres;
  95
  96
  97         typedef         struct
  98                                 {
  99                                         l3_long_data                    long_data;
 100                                         l3_short_data                   short_data;
 101                                         l3_long_thres                   long_thres;
 102                                         l3_short_thres                  short_thres;
 103                                 }                                               l3_parm_block;
 104
 105
 106         extern          l3_parm_block                   l3_parm[3];
 107
 108
 109 #else   /* NEW_L3PARM_TABLES */
 110
 111
 112         typedef         struct
 113                                 {
 114                                 /*      int                                             no; */
 115                                         int                                             lines;
 116                                         double                                  minVal;
 117                                         double                                  qthr;
 118                                         double                                  norm;
 119                                         double                                  bVal;
 120                                 }                                               psyDataElem;
 121
 122
 123         typedef         struct
 124                                 {
 125                                 /*      int                                             no; */
 126                                         int                                             lines;
 127                                         double                                  qthr;
 128                                         double                                  norm;
 129                                         double                                  snr;
 130                                         double                                  bVal;
 131                                 }                                               psyDataElem2;
 132
 133         typedef         struct
 134                                 {
 135                                         int                                             cbw;
 136                                         int                                             bu;
 137                                         int                                             bo;
 138                                         float                                   w1;
 139                                         float                                   w2;
 140                                 }                                               psyDataElem3;
 141
 142
 143         extern          psyDataElem                             psy_longBlock_48000_61[62];
 144         extern          psyDataElem                             psy_longBlock_44100_62[63];
 145         extern          psyDataElem                             psy_longBlock_32000_58[59];
 146
 147         extern          psyDataElem2                    psy_shortBlock_48000_37[38];
 148         extern          psyDataElem2                    psy_shortBlock_44100_38[39];
 149         extern          psyDataElem2                    psy_shortBlock_32000_41[42];
 150
 151         extern          psyDataElem3                    psy_data3_48000_20[21];
 152         extern          psyDataElem3                    psy_data3_44100_20[21];
 153         extern          psyDataElem3                    psy_data3_32000_20[21];
 154
 155         extern          psyDataElem3                    psy_data4_48000_11[12];
 156         extern          psyDataElem3                    psy_data4_44100_11[12];
 157         extern          psyDataElem3                    psy_data4_32000_11[12];
 158
 159
 160 #endif   /* NEW_L3PARM_TABLES */
 161
 162
 163
 164
 165
 166 extern          double                                  enwindow[512];
 167 extern          char                                    aHuffcode[1498][36];
 168
 169
 170
 171
 172
 173 #endif          /* __TABLES__ */