GNU Radio Manual and C++ API Reference  3.7.13.4
The Free & Open Software Radio Ecosystem
moving_average_ff.h
Go to the documentation of this file.
1 /* -*- c++ -*- */
2 /*
3  * Copyright 2008,2013,2017 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 // WARNING: this file is machine generated. Edits will be overwritten
24 
25 #ifndef INCLUDED_BLOCKS_MOVING_AVERAGE_FF_H
26 #define INCLUDED_BLOCKS_MOVING_AVERAGE_FF_H
27 
28 #include <gnuradio/blocks/api.h>
29 #include <gnuradio/sync_block.h>
30 
31 namespace gr {
32  namespace blocks {
33 
34  /*!
35  * \brief output is the moving sum of the last N samples, scaled by the scale factor
36  * \ingroup level_controllers_blk
37  */
38  class BLOCKS_API moving_average_ff : virtual public sync_block
39  {
40  public:
41  // gr::blocks::moving_average_ff::sptr
42  typedef boost::shared_ptr<moving_average_ff> sptr;
43 
44  /*!
45  * Create a moving average block.
46  *
47  * \param length Number of samples to use in the average.
48  * \param scale scale factor for the result.
49  * \param max_iter limits how long we go without flushing the accumulator
50  * This is necessary to avoid numerical instability for float and complex.
51  * \param vlen When > 1, do a per-vector-element moving average
52  */
53  static sptr make(int length, float scale,
54  int max_iter = 4096,
55  unsigned int vlen = 1);
56 
57  /*!
58  * Get the length used in the avaraging calculation.
59  */
60  virtual int length() const = 0;
61 
62  /*!
63  * Get the scale factor being used.
64  */
65  virtual float scale() const = 0;
66 
67  /*!
68  * Set both the length and the scale factor together.
69  */
70  virtual void set_length_and_scale(int length, float scale) = 0;
71 
72  /*!
73  * Set the length.
74  */
75  virtual void set_length(int length) = 0;
76 
77  /*!
78  * Set the scale factor.
79  */
80  virtual void set_scale(float scale) = 0;
81  };
82 
83  } /* namespace blocks */
84 } /* namespace gr */
85 
86 #endif /* INCLUDED_BLOCKS_MOVING_AVERAGE_FF_H */
Include this header to use the message passing features.
Definition: logger.h:695
#define BLOCKS_API
Definition: gr-blocks/include/gnuradio/blocks/api.h:30
boost::shared_ptr< moving_average_ff > sptr
Definition: moving_average_ff.h:42
synchronous 1:1 input to output with historyOverride work to provide the signal processing implementa...
Definition: sync_block.h:37
PMT_API size_t length(const pmt_t &v)
Return the number of elements in v.
output is the moving sum of the last N samples, scaled by the scale factor
Definition: moving_average_ff.h:38