GNU Radio Manual and C++ API Reference 3.7.14.0
The Free & Open Software Radio Ecosystem
stretch_ff.h
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1/* -*- c++ -*- */
2/*
3 * Copyright 2008,2013 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_GR_STRETCH_FF_H
24#define INCLUDED_GR_STRETCH_FF_H
25
26#include <gnuradio/blocks/api.h>
27#include <gnuradio/sync_block.h>
28
29namespace gr {
30namespace blocks {
31
32/*!
33 * \brief adjust y-range of an input vector by mapping to range
34 * (max-of-input, stipulated-min). Primarily for spectral
35 * signature matching by normalizing spectrum dynamic ranges.
36 * \ingroup stream_operators_blk
37 */
38class BLOCKS_API stretch_ff : virtual public sync_block
39{
40public:
41 // gr::blocks::stretch_ff::sptr
42 typedef boost::shared_ptr<stretch_ff> sptr;
43
44 /*!
45 * \brief Make a stretch block.
46 *
47 * \param lo Set low value for range.
48 * \param vlen vector length of input stream.
49 */
50 static sptr make(float lo, size_t vlen = 1);
51
52 virtual float lo() const = 0;
53 virtual void set_lo(float lo) = 0;
54 virtual size_t vlen() const = 0;
55};
56
57} /* namespace blocks */
58} /* namespace gr */
59
60#endif /* INCLUDED_GR_STRETCH_FF_H */
adjust y-range of an input vector by mapping to range (max-of-input, stipulated-min)....
Definition: stretch_ff.h:39
virtual void set_lo(float lo)=0
virtual size_t vlen() const =0
virtual float lo() const =0
static sptr make(float lo, size_t vlen=1)
Make a stretch block.
boost::shared_ptr< stretch_ff > sptr
Definition: stretch_ff.h:42
synchronous 1:1 input to output with history
Definition: sync_block.h:38
#define BLOCKS_API
Definition: gr-blocks/include/gnuradio/blocks/api.h:30
Include this header to use the message passing features.
Definition: basic_block.h:45