GNU Radio Manual and C++ API Reference 3.7.14.0
The Free & Open Software Radio Ecosystem
goertzel_fc.h
Go to the documentation of this file.
1/* -*- c++ -*- */
2/*
3 * Copyright 2006,2011,2012 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,
20 * Boston, MA 02110-1301, USA.
21 */
22
23#ifndef INCLUDED_FFT_GOERTZEL_FC_H
24#define INCLUDED_FFT_GOERTZEL_FC_H
25
26#include <gnuradio/fft/api.h>
28
29namespace gr {
30namespace fft {
31
32/*!
33 * \brief Goertzel single-bin DFT calculation.
34 * \ingroup fourier_analysis_blk
35 */
36class FFT_API goertzel_fc : virtual public sync_decimator
37{
38public:
39 // gr::fft::goertzel_fc::sptr
40 typedef boost::shared_ptr<goertzel_fc> sptr;
41
42 static sptr make(int rate, int len, float freq);
43
44 virtual void set_freq(float freq) = 0;
45
46 virtual void set_rate(int rate) = 0;
47
48 virtual float freq() = 0;
49
50 virtual int rate() = 0;
51};
52
53} /* namespace fft */
54} /* namespace gr */
55
56#endif /* INCLUDED_FFT_GOERTZEL_FC_H */
Goertzel single-bin DFT calculation.
Definition: goertzel_fc.h:37
static sptr make(int rate, int len, float freq)
virtual float freq()=0
virtual void set_rate(int rate)=0
virtual void set_freq(float freq)=0
boost::shared_ptr< goertzel_fc > sptr
Definition: goertzel_fc.h:40
virtual int rate()=0
synchronous N:1 input to output with history
Definition: sync_decimator.h:38
#define FFT_API
Definition: gr-fft/include/gnuradio/fft/api.h:30
Include this header to use the message passing features.
Definition: basic_block.h:45