3 * Copyright 2006 Free Software Foundation, Inc.
5 * This file is part of GNU Radio
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)
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.
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,
20 * Boston, MA 02110-1301, USA.
23 #ifndef INCLUDED_GR_GOERTZEL_FC_H
24 #define INCLUDED_GR_GOERTZEL_FC_H
26 #include <gri_goertzel.h>
27 #include <gr_sync_decimator.h>
30 typedef boost::shared_ptr<gr_goertzel_fc> gr_goertzel_fc_sptr;
33 gr_goertzel_fc_sptr gr_make_goertzel_fc(int rate, int len, float freq);
36 * \brief Goertzel single-bin DFT calculation.
39 class gr_goertzel_fc : public gr_sync_decimator
42 friend gr_goertzel_fc_sptr gr_make_goertzel_fc (int rate, int len, float freq);
44 gr_goertzel_fc(int rate, int len, float freq);
45 gri_goertzel d_goertzel;
49 int work(int noutput_items,
50 gr_vector_const_void_star &input_items,
51 gr_vector_void_star &output_items);
54 #endif /* INCLUDED_GR_GOERTZEL_FC_H */