GNU Radio 3.5.3.2 C++ API
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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, 00033 const std::vector<float> &window, 00034 bool shift=false, int nthreads=1); 00035 00036 /*! 00037 * \brief Compute forward or reverse FFT. complex vector in / complex vector out. 00038 * \ingroup dft_blk 00039 * 00040 * Concrete class that uses FFTW. 00041 */ 00042 class GR_CORE_API gr_fft_vcc_fftw : public gr_fft_vcc 00043 { 00044 friend GR_CORE_API gr_fft_vcc_sptr 00045 gr_make_fft_vcc_fftw (int fft_size, bool forward, 00046 const std::vector<float> &window, 00047 bool shift, int nthreads); 00048 00049 gri_fft_complex *d_fft; 00050 00051 gr_fft_vcc_fftw (int fft_size, bool forward, 00052 const std::vector<float> &window, 00053 bool shift, int nthreads=1); 00054 00055 public: 00056 ~gr_fft_vcc_fftw (); 00057 00058 void set_nthreads(int n); 00059 int nthreads() const; 00060 00061 int work (int noutput_items, 00062 gr_vector_const_void_star &input_items, 00063 gr_vector_void_star &output_items); 00064 }; 00065 00066 00067 #endif /* INCLUDED_GR_FFT_VCC_FFTW_H */