GNU Radio 3.5.3.2 C++ API
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00001 /* -*- c++ -*- */ 00002 /* 00003 * Copyright 2004,2010,2012 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_VFC_H 00024 #define INCLUDED_GR_FFT_VFC_H 00025 00026 #include <gr_core_api.h> 00027 #include <gr_sync_block.h> 00028 00029 class gri_fft_complex; 00030 00031 class gr_fft_vfc; 00032 typedef boost::shared_ptr<gr_fft_vfc> gr_fft_vfc_sptr; 00033 00034 GR_CORE_API gr_fft_vfc_sptr 00035 gr_make_fft_vfc (int fft_size, bool forward, 00036 const std::vector<float> &window, 00037 int nthreads=1); 00038 00039 /*! 00040 * \brief Compute forward FFT. float vector in / complex vector out. 00041 * \ingroup dft_blk 00042 */ 00043 00044 class GR_CORE_API gr_fft_vfc : public gr_sync_block 00045 { 00046 friend GR_CORE_API gr_fft_vfc_sptr 00047 gr_make_fft_vfc (int fft_size, bool forward, 00048 const std::vector<float> &window, 00049 int nthreads); 00050 00051 unsigned int d_fft_size; 00052 std::vector<float> d_window; 00053 gri_fft_complex *d_fft; 00054 00055 gr_fft_vfc (int fft_size, bool forward, 00056 const std::vector<float> &window, 00057 int nthreads=1); 00058 00059 public: 00060 ~gr_fft_vfc (); 00061 00062 void set_nthreads(int n); 00063 int nthreads() const; 00064 00065 int work (int noutput_items, 00066 gr_vector_const_void_star &input_items, 00067 gr_vector_void_star &output_items); 00068 bool set_window(const std::vector<float> &window); 00069 }; 00070 00071 00072 #endif /* INCLUDED_GR_FFT_VFC_H */