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gr_fft_vfc.h

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00001 /* -*- c++ -*- */
00002 /*
00003  * Copyright 2004 Free Software Foundation, Inc.
00004  * 
00005  * This file is part of GNU Radio
00006  * 
00007  * GNU Radio is free software; you can redistribute it and/or modify
00008  * it under the terms of the GNU General Public License as published by
00009  * the Free Software Foundation; either version 2, or (at your option)
00010  * any later version.
00011  * 
00012  * GNU Radio is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  * 
00017  * You should have received a copy of the GNU General Public License
00018  * along with GNU Radio; see the file COPYING.  If not, write to
00019  * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
00020  * Boston, MA 02111-1307, USA.
00021  */
00022 
00023 #ifndef INCLUDED_GR_FFT_VFC_H
00024 #define INCLUDED_GR_FFT_VFC_H
00025 
00026 #include <gr_sync_block.h>
00027 
00028 class gri_fft_complex;
00029 
00030 class gr_fft_vfc;
00031 typedef boost::shared_ptr<gr_fft_vfc> gr_fft_vfc_sptr;
00032 
00033 gr_fft_vfc_sptr
00034 gr_make_fft_vfc (int fft_size, bool forward, const std::vector<float>);
00035 
00041 class gr_fft_vfc : public gr_sync_block
00042 {
00043   friend gr_fft_vfc_sptr
00044   gr_make_fft_vfc (int fft_size, bool forward, const std::vector<float>  window);
00045 
00046   unsigned int  d_fft_size;
00047   std::vector<float> d_window;
00048   gri_fft_complex *d_fft;
00049 
00050   gr_fft_vfc (int fft_size, bool forward, const std::vector<float>  window);
00051 
00052  public:
00053   ~gr_fft_vfc ();
00054 
00055   int work (int noutput_items,
00056             gr_vector_const_void_star &input_items,
00057             gr_vector_void_star &output_items);
00058   bool set_window(const std::vector<float> window);
00059 };
00060 
00061 
00062 #endif /* INCLUDED_GR_FFT_VFC_H */

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