FFT_fftw3.hxx

Go to the documentation of this file.
00001 /*
00002  * Copyright (c) 2001-2004 MUSIC TECHNOLOGY GROUP (MTG)
00003  *                         UNIVERSITAT POMPEU FABRA
00004  *
00005  *
00006  * This program is free software; you can redistribute it and/or modify
00007  * it under the terms of the GNU General Public License as published by
00008  * the Free Software Foundation; either version 2 of the License, or
00009  * (at your option) any later version.
00010  *
00011  * This program is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014  * GNU General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU General Public License
00017  * along with this program; if not, write to the Free Software
00018  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00019  *
00020  */
00021 
00022 
00023 #ifndef FFT_fftw3_hxx
00024 #define FFT_fftw3_hxx
00025 
00026 #ifndef USE_FFTW3
00027 #error This header should not be used without the USE_FFTW3 macro defined
00028 #endif
00029 
00030 #include "FFT_base.hxx"
00031 #include "DataTypes.hxx"
00032 #include "SpecTypeFlags.hxx"
00033 #include "ErrDynamicType.hxx"
00034 
00035 namespace CLAM
00036 {
00037 
00038         class FFTConfig;
00039         class Spectrum;
00040         class Audio;
00041         namespace Hidden { struct FFT_fftw3_Implementation; }
00042 
00045         class FFT_fftw3: public FFT_base
00046         {
00047         public:
00048                 FFT_fftw3(const FFTConfig &c=FFTConfig());
00049                 ~FFT_fftw3();
00050                 const char * GetClassName() const {return "FFT_fftw3";}
00051 
00052                 // Execution methods
00053                 bool Do();
00054                 bool Do(const Audio& in, Spectrum &out);
00055         protected:
00056                 bool ConcreteConfigure(const ProcessingConfig&);
00057 
00058         private:
00059                 Hidden::FFT_fftw3_Implementation * _fftw3;
00060         private:
00061                 // Memory Management (for work areas and stuff)
00062                 void ReleaseMemory();
00063                 void SetupMemory();
00064 
00065                 // Output conversions
00066                 void ToComplex(Spectrum &out);
00067         };
00068 
00069 }//namespace CLAM
00070 
00071 #endif//FFT_fftw3_hxx
00072