GNU Radio 3.5.1 C++ API
gr_fft_vcc_fftw.h
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00001 /* -*- c++ -*- */
00002 /*
00003  * Copyright 2004,2007,2008 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 3, 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., 51 Franklin Street,
00020  * Boston, MA 02110-1301, USA.
00021  */
00022 
00023 #ifndef INCLUDED_GR_FFT_VCC_FFTW_H
00024 #define INCLUDED_GR_FFT_VCC_FFTW_H
00025 
00026 #include <gr_core_api.h>
00027 #include <gr_fft_vcc.h>
00028 
00029 class gri_fft_complex;
00030 
00031 GR_CORE_API gr_fft_vcc_sptr
00032 gr_make_fft_vcc_fftw (int fft_size, bool forward, const std::vector<float> &window, bool shift=false);
00033 
00034 /*!
00035  * \brief Compute forward or reverse FFT.  complex vector in / complex vector out.
00036  * \ingroup dft_blk
00037  *
00038  * Concrete class that uses FFTW.
00039  */
00040 class GR_CORE_API gr_fft_vcc_fftw : public gr_fft_vcc
00041 {
00042   friend GR_CORE_API gr_fft_vcc_sptr
00043   gr_make_fft_vcc_fftw (int fft_size, bool forward, const std::vector<float> &window, bool shift);
00044 
00045   gri_fft_complex *d_fft;
00046 
00047   gr_fft_vcc_fftw (int fft_size, bool forward, const std::vector<float> &window, bool shift);
00048 
00049  public:
00050   ~gr_fft_vcc_fftw ();
00051 
00052   int work (int noutput_items,
00053             gr_vector_const_void_star &input_items,
00054             gr_vector_void_star &output_items);
00055 };
00056 
00057 
00058 #endif /* INCLUDED_GR_FFT_VCC_FFTW_H */