mirror of https://github.com/gnss-sdr/gnss-sdr
80 lines
2.5 KiB
C++
80 lines
2.5 KiB
C++
/*!
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* \file spir_file_signal_source.cc
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* \brief Implementation of a class that reads signals samples from a SPIR file
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* and adapts it to a SignalSourceInterface.
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* \author Fran Fabra, 2014 fabra(at)ice.csic.es
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*
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* -----------------------------------------------------------------------------
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*
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* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
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* This file is part of GNSS-SDR.
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*
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* Copyright (C) 2010-2021 (see AUTHORS file for a list of contributors)
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* SPDX-License-Identifier: GPL-3.0-or-later
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*
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* -----------------------------------------------------------------------------
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*/
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#include "spir_file_signal_source.h"
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#include "gnss_sdr_string_literals.h"
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#include <glog/logging.h>
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using namespace std::string_literals;
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SpirFileSignalSource::SpirFileSignalSource(const ConfigurationInterface* configuration,
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const std::string& role, unsigned int in_streams, unsigned int out_streams,
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Concurrent_Queue<pmt::pmt_t>* queue)
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: FileSourceBase(configuration, role, "Spir_File_Signal_Source"s, queue, "int"s)
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{
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if (in_streams > 0)
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{
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LOG(ERROR) << "A signal source does not have an input stream";
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}
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if (out_streams > 1)
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{
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LOG(ERROR) << "This implementation only supports one output stream";
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}
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}
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std::tuple<size_t, bool> SpirFileSignalSource::itemTypeToSize()
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{
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auto is_complex = false;
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auto item_size = size_t(0);
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if (item_type() == "int")
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{
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item_size = sizeof(int);
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}
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else
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{
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LOG(WARNING) << item_type() << " unsupported item type. Using int.";
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item_size = sizeof(int);
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}
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return std::make_tuple(item_size, is_complex);
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}
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// This class feeds the file data through a decoder to produce samples; for all intents this is the "source"
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gnss_shared_ptr<gr::block> SpirFileSignalSource::source() const { return unpack_intspir_; }
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void SpirFileSignalSource::create_file_source_hook()
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{
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// connect the file to the decoder
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unpack_intspir_ = make_unpack_intspir_1bit_samples();
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DLOG(INFO) << "unpack_intspir_1bit_samples(" << unpack_intspir_->unique_id() << ")";
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}
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void SpirFileSignalSource::pre_connect_hook(gr::top_block_sptr top_block)
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{
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top_block->connect(file_source(), 0, unpack_intspir_, 0);
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DLOG(INFO) << "connected file_source to unpacker";
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}
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void SpirFileSignalSource::post_disconnect_hook(gr::top_block_sptr top_block)
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{
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top_block->disconnect(file_source(), 0, unpack_intspir_, 0);
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DLOG(INFO) << "disconnected file_source from unpacker";
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}
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