CLAM-Development  1.4.0
Normalization.hxx
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1 /*
2  * Copyright (c) 2001-2004 MUSIC TECHNOLOGY GROUP (MTG)
3  * UNIVERSITAT POMPEU FABRA
4  *
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19  *
20  */
21 
22 #ifndef _Normalization_
23 #define _Normalization_
24 
25 #include "Processing.hxx"
26 #include "Audio.hxx"
27 #include "OutControl.hxx"
28 
29 namespace CLAM
30 {
65  {
66  public:
68  DYN_ATTRIBUTE (0, public, int, Type);
69  DYN_ATTRIBUTE (1, public, TSize, FrameSize);
70 
71  void DefaultInit(void);
72  };
73 
74  class Normalization: public Processing
75  {
76  private:
77  NormalizationConfig mConfig;
78 
82  FloatOutControl mIsSilenceCtrl;
83 
84  int mType;
85  TSize mFrameSize;
86 
87  bool ConcreteConfigure(const ProcessingConfig& c);
88 
89  /*
90  * With this check an app can know if the passed audio is silence,
91  * just consulting the value of the control.
92  */
93  void CheckSilence( int size );
94 
95  public:
96 
97  Normalization();
100 
101  const char * GetClassName() const {return "Normalization";}
102 
103  bool Do(void);
104 
105  bool Do(Audio &in);
106  bool Do( const Audio& unnorm, Audio& norm );
107 
108  const ProcessingConfig &GetConfig() const { return mConfig;}
109 
110  protected:
111 
115 
116  };
117 
118 }
119 
120 #endif
121 
122