GNU Radio 3.6.5.1 C++ API
gr_nlog10_ff.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2005 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 #ifndef INCLUDED_GR_NLOG10_FF_H
23 #define INCLUDED_GR_NLOG10_FF_H
24 
25 #include <gr_core_api.h>
26 #include <gr_sync_block.h>
27 
28 class gr_nlog10_ff;
30 
31 GR_CORE_API gr_nlog10_ff_sptr gr_make_nlog10_ff (float n=1.0, unsigned vlen=1, float k=0);
32 
33 /*!
34  * \brief output = n*log10(input) + k
35  */
37 {
38  friend GR_CORE_API gr_nlog10_ff_sptr gr_make_nlog10_ff (float n, unsigned vlen, float k);
39 
40  unsigned int d_vlen;
41  float d_n;
42  float d_k;
43 
44  gr_nlog10_ff (float n, unsigned vlen, float k);
45 
46 public:
47  ~gr_nlog10_ff();
48 
49  int work (int noutput_items,
50  gr_vector_const_void_star &input_items,
51  gr_vector_void_star &output_items);
52 };
53 
54 
55 #endif /* INCLUDED_GR_NLOG10_FF_H */