GNU Radio Manual and C++ API Reference 3.8.5.0
The Free & Open Software Radio Ecosystem
 
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tagged_stream_multiply_length.h
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1/* -*- c++ -*- */
2/* Copyright 2013 Free Software Foundation, Inc.
3 *
4 * This file is part of GNU Radio
5 *
6 * GNU Radio is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 3, or (at your option)
9 * any later version.
10 *
11 * GNU Radio is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with GNU Radio; see the file COPYING. If not, write to
18 * the Free Software Foundation, Inc., 51 Franklin Street,
19 * Boston, MA 02110-1301, USA.
20 */
21
22#ifndef INCLUDED_TAGGED_STREAM_MULTIPLY_LENGTH_H
23#define INCLUDED_TAGGED_STREAM_MULTIPLY_LENGTH_H
24
25#include <gnuradio/blocks/api.h>
27
28namespace gr {
29namespace blocks {
30
31/*!
32 * \brief Allows scaling of a tagged stream length tag
33 * \ingroup stream_operators_blk
34 *
35 * \details
36 * Searches for a specific tagged stream length tag and multiplies
37 * that length by a constant - for constant rate change blocks
38 * in a tagged stream
39 */
41{
42public:
43 typedef boost::shared_ptr<tagged_stream_multiply_length> sptr;
44 virtual void set_scalar(double scalar) = 0;
45
46 /*!
47 * Make a tagged stream multiply_length block.
48 *
49 * \param itemsize Items size (number of bytes per item)
50 * \param lengthtagname Length tag key
51 * \param scalar value to scale length tag values by
52 */
53 static sptr make(size_t itemsize, const std::string& lengthtagname, double scalar);
54};
55
56} // namespace blocks
57} // namespace gr
58
59#endif /* INCLUDED_TAGGED_STREAM_MULTIPLY_LENGTH_H */
The abstract base class for all 'terminal' processing blocks.
Definition block.h:72
Allows scaling of a tagged stream length tag.
Definition tagged_stream_multiply_length.h:41
boost::shared_ptr< tagged_stream_multiply_length > sptr
Definition tagged_stream_multiply_length.h:43
virtual void set_scalar(double scalar)=0
static sptr make(size_t itemsize, const std::string &lengthtagname, double scalar)
#define BLOCKS_API
Definition gr-blocks/include/gnuradio/blocks/api.h:30
GNU Radio logging wrapper for log4cpp library (C++ port of log4j)
Definition basic_block.h:46