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
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
/* -*- c++ -*- */
/*
* Copyright 2004,2010,2012 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.
*/
// @WARNING@
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "@NAME@.h"
#include <gnuradio/io_signature.h>
#include <iostream>
#include <trellis/core_algorithms.h>
namespace gr {
namespace trellis {
static const float INF = 1.0e9;
@BASE_NAME@::sptr
@BASE_NAME@::make(const fsm &FSMo, int STo0, int SToK,
const fsm &FSMi, int STi0, int STiK,
const interleaver &INTERLEAVER,
int blocklength,
int repetitions,
siso_type_t SISO_TYPE)
{
return gnuradio::get_initial_sptr
(new @IMPL_NAME@(FSMo, STo0, SToK, FSMi, STi0, STiK,
INTERLEAVER, blocklength, repetitions,
SISO_TYPE));
}
@IMPL_NAME@::@IMPL_NAME@(const fsm &FSMo, int STo0, int SToK,
const fsm &FSMi, int STi0, int STiK,
const interleaver &INTERLEAVER,
int blocklength,
int repetitions,
siso_type_t SISO_TYPE)
: block("@BASE_NAME@",
io_signature::make(1, 1, sizeof(float)),
io_signature::make(1, 1, sizeof(@O_TYPE@))),
d_FSMo(FSMo), d_STo0(STo0), d_SToK(SToK),
d_FSMi(FSMi), d_STi0(STi0), d_STiK(STiK),
d_INTERLEAVER(INTERLEAVER),
d_blocklength(blocklength),
d_repetitions(repetitions),
d_SISO_TYPE(SISO_TYPE)
{
set_relative_rate(1.0 / ((double) d_FSMi.O()));
set_output_multiple(d_blocklength);
}
@IMPL_NAME@::~@IMPL_NAME@()
{
}
void
@IMPL_NAME@::forecast(int noutput_items,
gr_vector_int &ninput_items_required)
{
int input_required = d_FSMi.O() * noutput_items ;
ninput_items_required[0] = input_required;
}
//===========================================================
int
@IMPL_NAME@::general_work(int noutput_items,
gr_vector_int &ninput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items)
{
int nblocks = noutput_items / d_blocklength;
float (*p2min)(float, float) = NULL;
if(d_SISO_TYPE == TRELLIS_MIN_SUM)
p2min = &min;
else if(d_SISO_TYPE == TRELLIS_SUM_PRODUCT)
p2min = &min_star;
const float *in = (const float*)input_items[0];
@O_TYPE@ *out = (@O_TYPE@*)output_items[0];
for(int n = 0; n < nblocks; n++) {
sccc_decoder(d_FSMo, d_STo0, d_SToK,
d_FSMi, d_STi0, d_STiK,
d_INTERLEAVER, d_blocklength, d_repetitions,
p2min,
&(in[n*d_blocklength*d_FSMi.O()]),
&(out[n*d_blocklength]));
}
consume_each(d_FSMi.O() * noutput_items );
return noutput_items;
}
} /* namespace trellis */
} /* namespace gr */
|
