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
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
/* -*- c++ -*- */
/*
* Copyright 2004,2010,2012,2018 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "pccc_decoder_blk_impl.h"
#include <gnuradio/io_signature.h>
#include <gnuradio/trellis/core_algorithms.h>
#include <iostream>
namespace gr {
namespace trellis {
template <class T>
typename pccc_decoder_blk<T>::sptr
pccc_decoder_blk<T>::make(const fsm& FSM1,
int ST10,
int ST1K,
const fsm& FSM2,
int ST20,
int ST2K,
const interleaver& INTERLEAVER,
int blocklength,
int repetitions,
siso_type_t SISO_TYPE)
{
return gnuradio::make_block_sptr<pccc_decoder_blk_impl<T>>(FSM1,
ST10,
ST1K,
FSM2,
ST20,
ST2K,
INTERLEAVER,
blocklength,
repetitions,
SISO_TYPE);
}
template <class T>
pccc_decoder_blk_impl<T>::pccc_decoder_blk_impl(const fsm& FSM1,
int ST10,
int ST1K,
const fsm& FSM2,
int ST20,
int ST2K,
const interleaver& INTERLEAVER,
int blocklength,
int repetitions,
siso_type_t SISO_TYPE)
: block("pccc_decoder_blk",
io_signature::make(1, 1, sizeof(float)),
io_signature::make(1, 1, sizeof(T))),
d_FSM1(FSM1),
d_ST10(ST10),
d_ST1K(ST1K),
d_FSM2(FSM2),
d_ST20(ST20),
d_ST2K(ST2K),
d_INTERLEAVER(INTERLEAVER),
d_blocklength(blocklength),
d_repetitions(repetitions),
d_SISO_TYPE(SISO_TYPE)
{
this->set_relative_rate(1, (uint64_t)(d_FSM1.O() * d_FSM2.O()));
this->set_output_multiple(d_blocklength);
}
template <class T>
pccc_decoder_blk_impl<T>::~pccc_decoder_blk_impl()
{
}
template <class T>
void pccc_decoder_blk_impl<T>::forecast(int noutput_items,
gr_vector_int& ninput_items_required)
{
int input_required = d_FSM1.O() * d_FSM2.O() * noutput_items;
ninput_items_required[0] = input_required;
}
//===========================================================
template <class T>
int pccc_decoder_blk_impl<T>::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];
T* out = (T*)output_items[0];
for (int n = 0; n < nblocks; n++) {
pccc_decoder(d_FSM1,
d_ST10,
d_ST1K,
d_FSM2,
d_ST20,
d_ST2K,
d_INTERLEAVER,
d_blocklength,
d_repetitions,
p2min,
&(in[n * d_blocklength * d_FSM1.O() * d_FSM2.O()]),
&(out[n * d_blocklength]));
}
this->consume_each(d_FSM1.O() * d_FSM2.O() * noutput_items);
return noutput_items;
}
template class pccc_decoder_blk<std::uint8_t>;
template class pccc_decoder_blk<std::int16_t>;
template class pccc_decoder_blk<std::int32_t>;
} /* namespace trellis */
} /* namespace gr */
|
