CLAM-Development  1.4.0
FreqShift.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 
23 #ifndef _FreqShift_
24 #define _FreqShift_
25 
26 #include "InPort.hxx"
27 #include "OutPort.hxx"
28 #include "InControl.hxx"
29 #include "Frame.hxx"
30 #include "FrameTransformation.hxx"
32 
33 namespace CLAM{
34 
35  class FreqShift: public FrameTransformationTmpl<Spectrum>
36  {
37  InPort<Spectrum> mIn;
38  OutPort<Spectrum> mOut;
39 
40 
41  FloatInControl mShiftAmount;
42  public:
43  const char* GetClassName() const
44  {
45  return "FreqShift";
46  }
47 
49  :
50  mIn("In Spectrum", this),
51  mOut("Out Spectrum", this),
52  mShiftAmount("Shift Amount", this)
53  {
55  }
56 
57  ~FreqShift() {}
58 
59  bool Do(const Frame& in, Frame& out)
60  {
61  return Do(in.GetSpectrum(),
62  out.GetSpectrum());
63  }
64 
65  bool Do(const Spectrum& in, Spectrum& out);
66 
67  bool Do()
68  {
69  bool result = Do(mIn.GetData(), mOut.GetData());
70  mIn.Consume();
71  mOut.Produce();
72  return result;
73  }
74  private:
75  DataArray mOMagArray;
76  DataArray mOPhaseArray;
77 
78  };
79 };//namespace CLAM
80 
81 #endif // _FreqShift_
82