libs/qm-dsp/dsp/wavelet/Wavelet.h

   1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
   2
   3 /*
   4     QM DSP Library
   5
   6     Centre for Digital Music, Queen Mary, University of London.
   7     This file copyright 2009 Thomas Wilmering.
   8
   9     This program is free software; you can redistribute it and/or
  10     modify it under the terms of the GNU General Public License as
  11     published by the Free Software Foundation; either version 2 of the
  12     License, or (at your option) any later version.  See the file
  13     COPYING included with this distribution for more information.
  14 */
  15
  16 #ifndef _WAVELET_H_
  17 #define _WAVELET_H_
  18
  19 #include <string>
  20 #include <vector>
  21
  22 class Wavelet
  23 {
  24 public:
  25     enum Type {
  26         Haar = 0,
  27         Daubechies_2,
  28         Daubechies_3,
  29         Daubechies_4,
  30         Daubechies_5,
  31         Daubechies_6,
  32         Daubechies_7,
  33         Daubechies_8,
  34         Daubechies_9,
  35         Daubechies_10,
  36         Daubechies_20,
  37         Daubechies_40,
  38         Symlet_2,
  39         Symlet_3,
  40         Symlet_4,
  41         Symlet_5,
  42         Symlet_6,
  43         Symlet_7,
  44         Symlet_8,
  45         Symlet_9,
  46         Symlet_10,
  47         Symlet_20,
  48         Symlet_30,
  49         Coiflet_1,
  50         Coiflet_2,
  51         Coiflet_3,
  52         Coiflet_4,
  53         Coiflet_5,
  54         Biorthogonal_1_3,
  55         Biorthogonal_1_5,
  56         Biorthogonal_2_2,
  57         Biorthogonal_2_4,
  58         Biorthogonal_2_6,
  59         Biorthogonal_2_8,
  60         Biorthogonal_3_1,
  61         Biorthogonal_3_3,
  62         Biorthogonal_3_5,
  63         Biorthogonal_3_7,
  64         Biorthogonal_3_9,
  65         Biorthogonal_4_4,
  66         Biorthogonal_5_5,
  67         Biorthogonal_6_8,
  68         Meyer,
  69
  70         LastType = Meyer
  71     };
  72
  73     static std::string getWaveletName(Type);
  74
  75     static void createDecompositionFilters(Type,
  76                                            std::vector<float> &lpd,
  77                                            std::vector<float> &hpd);
  78 };
  79
  80 #endif