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/* -*- c++ -*- */
/*
* Copyright 2007,2011,2012 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 this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef INCLUDED_DIGITAL_OFDM_INSERT_PREAMBLE_IMPL_H
#define INCLUDED_DIGITAL_OFDM_INSERT_PREAMBLE_IMPL_H
#include <gnuradio/digital/ofdm_insert_preamble.h>
namespace gr {
namespace digital {
class ofdm_insert_preamble_impl : public ofdm_insert_preamble
{
private:
enum state_t {
ST_IDLE,
ST_PREAMBLE,
ST_FIRST_PAYLOAD,
ST_PAYLOAD
};
int d_fft_length;
state_t d_state;
int d_nsymbols_output;
int d_pending_flag;
const std::vector<std::vector<gr_complex> > d_preamble;
void enter_idle();
void enter_first_payload();
void enter_payload();
public:
ofdm_insert_preamble_impl(int fft_length,
const std::vector<std::vector<gr_complex> > &preamble);
~ofdm_insert_preamble_impl();
void enter_preamble();
int general_work(int noutput_items,
gr_vector_int &ninput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items);
void forecast(int noutput_items, gr_vector_int &ninput_items_required);
};
} /* namespace digital */
} /* namespace gr */
#endif /* INCLUDED_DIGITAL_OFDM_INSERT_PREAMBLE_IMPL_H */
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