GNU Radio 3.6.5.1 C++ API
ofdm_serializer_vcc_impl.h
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1 /* -*- c++ -*- */
2 /* Copyright 2012 Free Software Foundation, Inc.
3  *
4  * This file is part of GNU Radio
5  *
6  * GNU Radio is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 3, or (at your option)
9  * any later version.
10  *
11  * GNU Radio is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with GNU Radio; see the file COPYING. If not, write to
18  * the Free Software Foundation, Inc., 51 Franklin Street,
19  * Boston, MA 02110-1301, USA.
20  */
21 
22 #ifndef INCLUDED_DIGITAL_OFDM_SERIALIZER_VCC_IMPL_H
23 #define INCLUDED_DIGITAL_OFDM_SERIALIZER_VCC_IMPL_H
24 
26 
27 namespace gr {
28  namespace digital {
29 
31  {
32  private:
33  int d_fft_len; //!< FFT length
34  std::vector<std::vector<int> > d_occupied_carriers; //!< Which carriers/symbols carry data
35  pmt::pmt_t d_packet_len_tag_key; //!< Key of the length tag
36  pmt::pmt_t d_out_len_tag_key; //!< Key of the length tag
37  const int d_symbols_skipped; //!< Start position in d_occupied_carriers
38  pmt::pmt_t d_carr_offset_key; //!< Key of the carrier offset tag
39  int d_curr_set; //!< Current position in d_occupied_carriers
40  int d_symbols_per_set;
41 
42  protected:
43  /*!
44  * Calculate the number of scalar complex symbols given a number of
45  * OFDM symbols.
46  */
47  int calculate_output_stream_length(const gr_vector_int &ninput_items);
48  void update_length_tags(int n_produced, int n_ports);
49 
50  public:
52  int fft_len,
53  const std::vector<std::vector<int> > &occupied_carriers,
54  const std::string &len_tag_key,
55  const std::string &packet_len_tag_key,
56  int symbols_skipped,
57  const std::string &carr_offset_key,
58  bool input_is_shifted
59  );
61 
62  int work(int noutput_items,
63  gr_vector_int &ninput_items,
64  gr_vector_const_void_star &input_items,
65  gr_vector_void_star &output_items);
66  };
67 
68  } // namespace digital
69 } // namespace gr
70 
71 #endif /* INCLUDED_DIGITAL_OFDM_SERIALIZER_VCC_IMPL_H */
72