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
|
/* -*- c++ -*- */
/*
* Copyright 2004 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.
*/
/*
* config.h is generated by configure. It contains the results
* of probing for features, options etc. It should be the first
* file included in your .cc file.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gnuradio/io_signature.h>
#include "ofdm_insert_pilot_vcc_impl.h"
namespace gr {
namespace dab {
ofdm_insert_pilot_vcc::sptr
ofdm_insert_pilot_vcc::make(const std::vector<gr_complex> &pilot)
{
return gnuradio::get_initial_sptr
(new ofdm_insert_pilot_vcc_impl(pilot));
}
ofdm_insert_pilot_vcc_impl::ofdm_insert_pilot_vcc_impl(const std::vector<gr_complex> &pilot)
: gr::block("ofdm_insert_pilot_vcc",
gr::io_signature::make2 (2, 2, sizeof(gr_complex)*pilot.size(), sizeof(char)),
gr::io_signature::make2 (2, 2, sizeof(gr_complex)*pilot.size(), sizeof(char))),
d_pilot(pilot), d_start(0)
{
}
void
ofdm_insert_pilot_vcc_impl::forecast (int noutput_items, gr_vector_int &ninput_items_required)
{
unsigned ninputs = ninput_items_required.size ();
for (unsigned int i = 0; i < ninputs; i++)
ninput_items_required[i] = noutput_items;
}
int
ofdm_insert_pilot_vcc_impl::general_work (int noutput_items,
gr_vector_int &ninput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items)
{
const gr_complex *iptr = (const gr_complex *) input_items[0];
const char *frame_start = (const char *) input_items[1];
gr_complex *optr = (gr_complex *) output_items[0];
char *o_frame_start = (char *) output_items[1];
int n_produced = 0;
int n_consumed = 0;
for ( ; n_consumed<ninput_items[1] && n_consumed<ninput_items[1] && n_produced<noutput_items; n_produced++) {
if (*frame_start == 1 && d_start==0) {
d_start = 1;
for (unsigned int j=0; j<d_pilot.size(); j++)
*optr++ = d_pilot[j];
} else {
for (unsigned int j=0; j<d_pilot.size(); j++)
*optr++ = *iptr++;
frame_start++;
n_consumed++;
d_start=0;
}
*o_frame_start++ = d_start;
}
consume_each(n_consumed);
// printf("ninput_items: %d, noutput_items: %d, consumed: %d, produced: %d\n",ninput_items[0],noutput_items, n_consumed, n_produced);
return n_produced;
}
}
}
|
