gnss-sdr/src/algorithms/signal_source/adapters/multichannel_file_signal_so...

134 lines
3.8 KiB
C++

/*!
* \file multichannel_file_signal_source.h
* \brief Implementation of a class that reads signals samples from files at
* different frequency band and adapts it to a SignalSourceInterface
* \author Javier Arribas, 2019 jarribas(at)cttc.es
*
* This class represents a file signal source. Internally it uses a GNU Radio's
* gr_file_source as a connector to the data.
*
* -------------------------------------------------------------------------
*
* Copyright (C) 2010-2019 (see AUTHORS file for a list of contributors)
*
* GNSS-SDR is a software defined Global Navigation
* Satellite Systems receiver
*
* This file is part of GNSS-SDR.
*
* GNSS-SDR 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 of the License, or
* (at your option) any later version.
*
* GNSS-SDR 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 GNSS-SDR. If not, see <https://www.gnu.org/licenses/>.
*
* -------------------------------------------------------------------------
*/
#ifndef GNSS_SDR_MULTICHANNEL_FILE_SIGNAL_SOURCE_H_
#define GNSS_SDR_MULTICHANNEL_FILE_SIGNAL_SOURCE_H_
#include "concurrent_queue.h"
#include "gnss_block_interface.h"
#include <gnuradio/blocks/file_sink.h>
#include <gnuradio/blocks/file_source.h>
#include <gnuradio/blocks/throttle.h>
#include <gnuradio/hier_block2.h>
#include <pmt/pmt.h>
#include <cstdint>
#include <memory>
#include <string>
#include <vector>
class ConfigurationInterface;
/*!
* \brief Class that reads signals samples from files at different frequency bands
* and adapts it to a SignalSourceInterface
*/
class MultichannelFileSignalSource : public GNSSBlockInterface
{
public:
MultichannelFileSignalSource(ConfigurationInterface* configuration, const std::string& role,
unsigned int in_streams, unsigned int out_streams,
const std::shared_ptr<Concurrent_Queue<pmt::pmt_t>>& queue);
~MultichannelFileSignalSource() = default;
inline std::string role() override
{
return role_;
}
/*!
* \brief Returns "Multichannel_File_Signal_Source".
*/
inline std::string implementation() override
{
return "Multichannel_File_Signal_Source";
}
inline size_t item_size() override
{
return item_size_;
}
void connect(gr::top_block_sptr top_block) override;
void disconnect(gr::top_block_sptr top_block) override;
gr::basic_block_sptr get_left_block() override;
gr::basic_block_sptr get_right_block() override;
inline std::string filename() const
{
return filename_vec_.at(0);
}
inline std::string item_type() const
{
return item_type_;
}
inline bool repeat() const
{
return repeat_;
}
inline int64_t sampling_frequency() const
{
return sampling_frequency_;
}
inline uint64_t samples() const
{
return samples_;
}
private:
uint64_t samples_;
int64_t sampling_frequency_;
uint32_t n_channels_;
std::vector<std::string> filename_vec_;
std::string item_type_;
bool repeat_;
std::string role_;
uint32_t in_streams_;
uint32_t out_streams_;
std::vector<gr::blocks::file_source::sptr> file_source_vec_;
boost::shared_ptr<gr::block> valve_;
gr::blocks::file_sink::sptr sink_;
std::vector<gr::blocks::throttle::sptr> throttle_vec_;
std::shared_ptr<Concurrent_Queue<pmt::pmt_t>> queue_;
size_t item_size_;
// Throttle control
bool enable_throttle_control_;
};
#endif // GNSS_SDR_MULTICHANNEL_FILE_SIGNAL_SOURCE_H_