GNU Radio C++ API
gr_fft_vcc_fftw.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2004,2007,2008 Free Software Foundation, Inc.
4  *
5  * This file is part of GNU Radio
6  *
7  * GNU Radio is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 3, or (at your option)
10  * any later version.
11  *
12  * GNU Radio is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with GNU Radio; see the file COPYING. If not, write to
19  * the Free Software Foundation, Inc., 51 Franklin Street,
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21  */
22 
23 #ifndef INCLUDED_GR_FFT_VCC_FFTW_H
24 #define INCLUDED_GR_FFT_VCC_FFTW_H
25 
26 #include <gr_core_api.h>
27 #include <gr_fft_vcc.h>
28 
29 class gri_fft_complex;
30 
32 gr_make_fft_vcc_fftw (int fft_size, bool forward, const std::vector<float> &window, bool shift=false);
33 
34 /*!
35  * \brief Compute forward or reverse FFT. complex vector in / complex vector out.
36  * \ingroup dft_blk
37  *
38  * Concrete class that uses FFTW.
39  */
41 {
43  gr_make_fft_vcc_fftw (int fft_size, bool forward, const std::vector<float> &window, bool shift);
44 
45  gri_fft_complex *d_fft;
46 
47  gr_fft_vcc_fftw (int fft_size, bool forward, const std::vector<float> &window, bool shift);
48 
49  public:
50  ~gr_fft_vcc_fftw ();
51 
52  int work (int noutput_items,
53  gr_vector_const_void_star &input_items,
54  gr_vector_void_star &output_items);
55 };
56 
57 
58 #endif /* INCLUDED_GR_FFT_VCC_FFTW_H */