1 /* -*- c++ -*- */
2 /*
3 * Copyright 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 #ifdef HAVE_CONFIG_H
24 #include "config.h"
25 #endif
26
27 #include "vco_c_impl.h"
28 #include <gnuradio/io_signature.h>
29 #include <math.h>
30
31 namespace gr {
32 namespace blocks {
33
make(double sampling_rate,double sensitivity,double amplitude)34 vco_c::sptr vco_c::make(double sampling_rate, double sensitivity, double amplitude)
35 {
36 return gnuradio::get_initial_sptr(
37 new vco_c_impl(sampling_rate, sensitivity, amplitude));
38 }
39
vco_c_impl(double sampling_rate,double sensitivity,double amplitude)40 vco_c_impl::vco_c_impl(double sampling_rate, double sensitivity, double amplitude)
41 : sync_block("vco_c",
42 io_signature::make(1, 1, sizeof(float)),
43 io_signature::make(1, 1, sizeof(gr_complex))),
44 d_sampling_rate(sampling_rate),
45 d_sensitivity(sensitivity),
46 d_amplitude(amplitude),
47 d_k(d_sensitivity / d_sampling_rate)
48 {
49 }
50
~vco_c_impl()51 vco_c_impl::~vco_c_impl() {}
52
work(int noutput_items,gr_vector_const_void_star & input_items,gr_vector_void_star & output_items)53 int vco_c_impl::work(int noutput_items,
54 gr_vector_const_void_star& input_items,
55 gr_vector_void_star& output_items)
56 {
57 const float* input = (const float*)input_items[0];
58 gr_complex* output = (gr_complex*)output_items[0];
59
60 d_vco.sincos(output, input, noutput_items, d_k, d_amplitude);
61
62 return noutput_items;
63 }
64
65 } /* namespace blocks */
66 } /* namespace gr */
67