Marsyas
0.6.0-alpha
|
00001 /* 00002 ** Copyright (C) 1998-2004 George Tzanetakis <gtzan@cs.uvic.ca> 00003 ** 00004 ** This program is free software; you can redistribute it and/or modify 00005 ** it under the terms of the GNU General Public License as published by 00006 ** the Free Software Foundation; either version 2 of the License, or 00007 ** (at your option) any later version. 00008 ** 00009 ** This program is distributed in the hope that it will be useful, 00010 ** but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00012 ** GNU General Public License for more details. 00013 ** 00014 ** You should have received a copy of the GNU General Public License 00015 ** along with this program; if not, write to the Free Software 00016 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 00017 */ 00018 00019 #ifndef MARSYAS_FFT_H 00020 #define MARSYAS_FFT_H 00021 00022 #include <cstdio> 00023 #include <cmath> 00024 #include <marsyas/common_header.h> 00025 00026 namespace Marsyas 00027 { 00039 class fft 00040 { 00041 public: 00042 void bitreverse(mrs_real x[], int N); 00043 void rfft( mrs_real x[], int N, int forward); 00044 void cfft(mrs_real x[], int N, int forward); 00045 00046 // fft(SignalSource *src); 00047 00048 // void update(unsigned int interSize, unsigned int decimSize); 00049 // void myProcess(fvec& in, fvec& out); 00050 // void myProcess(fvec& in, int instart, int inlength, fvec& out, int outstart, int outlength); 00051 // void unprocess(fvec& out, fvec& in); 00052 }; 00053 00054 }//namespace Marsyas 00055 00056 00057 #endif 00058