1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
/* -*- c++ -*- */
/*
* Copyright 2007,2013,2018 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* GNU Radio is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "argmax_impl.h"
#include <gnuradio/io_signature.h>
namespace gr {
namespace blocks {
template <class T>
typename argmax<T>::sptr
argmax<T>::make(size_t vlen)
{
return gnuradio::get_initial_sptr
(new argmax_impl<T>(vlen));
}
template <class T>
argmax_impl<T>::argmax_impl(size_t vlen)
: sync_block("argmax",
io_signature::make(1, -1, vlen*sizeof(T)),
io_signature::make(2, 2, sizeof(std::int16_t))),
d_vlen(vlen)
{
}
template <class T>
argmax_impl<T>::~argmax_impl()
{
}
template <class T>
int
argmax_impl<T>::work(int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items)
{
int ninputs = input_items.size ();
std::int16_t *x_optr = (std::int16_t *)output_items[0];
std::int16_t *y_optr = (std::int16_t *)output_items[1];
for(int i = 0; i < noutput_items; i++) {
T max = ((T *)input_items[0])[i*d_vlen];
int x = 0;
int y = 0;
for(int j = 0; j < (int)d_vlen; j++ ) {
for(int k = 0; k < ninputs; k++) {
if(((T *)input_items[k])[i*d_vlen + j] > max) {
max = ((T *)input_items[k])[i*d_vlen + j];
x = j;
y = k;
}
}
}
*x_optr++ = (std::int16_t)x;
*y_optr++ = (std::int16_t)y;
}
return noutput_items;
}
template class argmax<float>;
template class argmax<std::int32_t>;
template class argmax<std::int16_t>;
} /* namespace blocks */
} /* namespace gr */
|
