/* -*- c++ -*- */
/* Copyright 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.
 */

#ifndef INCLUDED_DIGITAL_OFDM_SERIALIZER_VCC_IMPL_H
#define INCLUDED_DIGITAL_OFDM_SERIALIZER_VCC_IMPL_H

#include <gnuradio/digital/ofdm_serializer_vcc.h>

namespace gr {
namespace digital {

class ofdm_serializer_vcc_impl : public ofdm_serializer_vcc
{
private:
    int d_fft_len; //!< FFT length
    std::vector<std::vector<int>>
        d_occupied_carriers;         //!< Which carriers/symbols carry data
    pmt::pmt_t d_packet_len_tag_key; //!< Key of the length tag
    pmt::pmt_t d_out_len_tag_key;    //!< Key of the length tag
    const int d_symbols_skipped;     //!< Start position in d_occupied_carriers
    pmt::pmt_t d_carr_offset_key;    //!< Key of the carrier offset tag
    int d_curr_set;                  //!< Current position in d_occupied_carriers
    int d_symbols_per_set;

protected:
    /*!
     * Calculate the number of scalar complex symbols given a number of
     * OFDM symbols.
     */
    int calculate_output_stream_length(const gr_vector_int& ninput_items);
    void update_length_tags(int n_produced, int n_ports);

public:
    ofdm_serializer_vcc_impl(int fft_len,
                             const std::vector<std::vector<int>>& occupied_carriers,
                             const std::string& len_tag_key,
                             const std::string& packet_len_tag_key,
                             int symbols_skipped,
                             const std::string& carr_offset_key,
                             bool input_is_shifted);
    ~ofdm_serializer_vcc_impl();

    int work(int noutput_items,
             gr_vector_int& ninput_items,
             gr_vector_const_void_star& input_items,
             gr_vector_void_star& output_items);
};

} // namespace digital
} // namespace gr

#endif /* INCLUDED_DIGITAL_OFDM_SERIALIZER_VCC_IMPL_H */
