gr-gsm/lib/receiver/time_sample_ref.h

50 lines
1.5 KiB
C++

/* -*- c++ -*- */
/*
* @file
* @author (C) 2017 by Piotr Krysik <ptrkrysik@gmail.com>
* @section LICENSE
*
* Gr-gsm 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.
*
* Gr-gsm 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 gr-gsm; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef INCLUDED_TIME_SAMPLE_REF_IMPL_H
#define INCLUDED_TIME_SAMPLE_REF_IMPL_H
#include <stdint.h>
#include <grgsm/misc_utils/time_spec.h>
namespace gr {
namespace gsm {
/*
Class for storing time reference and for conversions time<->sample number
*/
class time_sample_ref
{
private:
double d_samp_rate;
time_spec_t d_last_rx_time;
uint64_t d_current_start_offset;
public:
time_sample_ref(double samp_rate);
~time_sample_ref();
void update(time_spec_t last_rx_time, uint64_t current_start_offset);
time_spec_t offset_to_time(uint64_t offset);
uint64_t time_to_offset(time_spec_t time);
};
} // namespace gsm
} // namespace gr
#endif// INCLUDED_TIME_SAMPLE_REF_IMPL_H