Merged r4518:5130 from developer branch n4hy/ofdm into trunk, passes distcheck.
[debian/gnuradio] / gnuradio-core / src / lib / general / gr_ofdm_bpsk_mapper.h
1 /* -*- c++ -*- */
2 /*
3  * Copyright 2006 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 2, 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 #ifndef INCLUDED_GR_OFDM_BPSK_MAPPER_H
24 #define INCLUDED_GR_OFDM_BPSK_MAPPER_H
25
26
27 #include <gr_block.h>
28 #include <gr_frame.h>
29 #include <vector>
30
31 class gr_ofdm_bpsk_mapper;
32 typedef boost::shared_ptr<gr_ofdm_bpsk_mapper> gr_ofdm_bpsk_mapper_sptr;
33
34 gr_ofdm_bpsk_mapper_sptr 
35 gr_make_ofdm_bpsk_mapper (unsigned mtu, unsigned occupied_carriers, unsigned int vlen,
36                           std::vector<gr_complex> known_symbol1, 
37                           std::vector<gr_complex> known_symbol2);
38
39 /*!
40  * \brief take a stream of bytes in and map to a vector of complex
41  * constellation points suitable for IFFT input to be used in an ofdm
42  * modulator.  Simple BPSK version.
43  */
44
45 class gr_ofdm_bpsk_mapper : public gr_block
46 {
47   friend gr_ofdm_bpsk_mapper_sptr
48     gr_make_ofdm_bpsk_mapper (unsigned mtu, unsigned occupied_carriers, unsigned int vlen,
49                               std::vector<gr_complex> known_symbol1, 
50                               std::vector<gr_complex> known_symbol2);
51   
52  protected:
53   gr_ofdm_bpsk_mapper (unsigned mtu, unsigned occupied_carriers, unsigned int vlen,
54                        std::vector<gr_complex> known_symbol1, 
55                        std::vector<gr_complex> known_symbol2);
56   
57  private:
58   unsigned int d_mtu;
59   unsigned int d_occupied_carriers;
60   unsigned int d_vlen;
61   unsigned int d_packet_offset;
62   unsigned int d_bit_offset;
63   unsigned int d_header_sent;
64   std::vector<gr_complex> d_known_symbol1, d_known_symbol2;
65
66   void forecast (int noutput_items, gr_vector_int &ninput_items_required);
67
68  public:
69   ~gr_ofdm_bpsk_mapper(void);
70   int general_work(int noutput_items,
71                    gr_vector_int &ninput_items,
72                    gr_vector_const_void_star &input_items,
73                    gr_vector_void_star &output_items);
74
75 };
76
77
78 #endif