mirror of
https://github.com/gnss-sdr/gnss-sdr
synced 2025-10-31 07:13:03 +00:00
add 2bit_cpx file source
This commit is contained in:
Jim Melton
@@ -9,22 +9,14 @@
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* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
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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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* This file is part of GNSS-SDR.
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*
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*
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* Copyright (C) 2010-2020 (see AUTHORS file for a list of contributors)
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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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* SPDX-License-Identifier: GPL-3.0-or-later
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*
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*
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* -----------------------------------------------------------------------------
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* -----------------------------------------------------------------------------
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*/
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*/
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#include "two_bit_cpx_file_signal_source.h"
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#include "two_bit_cpx_file_signal_source.h"
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#include "configuration_interface.h"
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#include "gnss_sdr_flags.h"
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#include "gnss_sdr_valve.h"
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#include <glog/logging.h>
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#include <glog/logging.h>
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#include <exception>
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#include <fstream>
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#include <iomanip>
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#include <iostream>
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#include <utility>
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using namespace std::string_literals;
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using namespace std::string_literals;
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@@ -32,274 +24,61 @@ using namespace std::string_literals;
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TwoBitCpxFileSignalSource::TwoBitCpxFileSignalSource(
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TwoBitCpxFileSignalSource::TwoBitCpxFileSignalSource(
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const ConfigurationInterface* configuration,
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const ConfigurationInterface* configuration,
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const std::string& role,
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const std::string& role,
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unsigned int in_streams,
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unsigned int in_streams, unsigned int out_streams,
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unsigned int out_streams,
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Concurrent_Queue<pmt::pmt_t>* queue)
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Concurrent_Queue<pmt::pmt_t>* queue)
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: SignalSourceBase(configuration, role, "Two_Bit_Cpx_File_Signal_Source"s), in_streams_(in_streams), out_streams_(out_streams)
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: FileSourceBase(configuration, role, "Two_Bit_Cpx_File_Signal_Source"s, queue, "byte"s)
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{
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{
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const std::string default_filename("../data/my_capture.dat");
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if (in_streams > 0)
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const std::string default_item_type("byte");
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const std::string default_dump_filename("../data/my_capture_dump.dat");
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samples_ = configuration->property(role + ".samples", static_cast<uint64_t>(0));
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sampling_frequency_ = configuration->property(role + ".sampling_frequency", static_cast<int64_t>(0));
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filename_ = configuration->property(role + ".filename", default_filename);
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// override value with commandline flag, if present
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if (FLAGS_signal_source != "-")
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{
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filename_ = FLAGS_signal_source;
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}
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if (FLAGS_s != "-")
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{
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filename_ = FLAGS_s;
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}
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item_type_ = configuration->property(role + ".item_type", default_item_type);
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repeat_ = configuration->property(role + ".repeat", false);
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dump_ = configuration->property(role + ".dump", false);
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dump_filename_ = configuration->property(role + ".dump_filename", default_dump_filename);
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enable_throttle_control_ = configuration->property(role + ".enable_throttle_control", false);
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if (item_type_ == "byte")
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{
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item_size_ = sizeof(char);
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}
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else
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{
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LOG(WARNING) << item_type_ << " unrecognized item type. Using byte.";
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item_size_ = sizeof(char);
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}
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try
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{
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file_source_ = gr::blocks::file_source::make(item_size_, filename_.c_str(), repeat_);
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unpack_byte_ = make_unpack_byte_2bit_cpx_samples();
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inter_shorts_to_cpx_ = gr::blocks::interleaved_short_to_complex::make(false, true); // I/Q swap enabled
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}
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catch (const std::exception& e)
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{
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std::cerr
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<< "The receiver was configured to work with a file signal source\n"
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<< "but the specified file is unreachable by GNSS-SDR.\n"
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<< "Please modify your configuration file\n"
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<< "and point SignalSource.filename to a valid raw data file. Then:\n"
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<< "$ gnss-sdr --config_file=/path/to/my_GNSS_SDR_configuration.conf\n"
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<< "Examples of configuration files available at:\n"
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<< GNSSSDR_INSTALL_DIR "/share/gnss-sdr/conf/\n";
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LOG(WARNING) << "file_signal_source: Unable to open the samples file "
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<< filename_.c_str() << ", exiting the program.";
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throw(e);
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}
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DLOG(INFO) << "file_source(" << file_source_->unique_id() << ")";
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if (samples_ == 0) // read all file
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{
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/*!
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* BUG workaround: The GNU Radio file source does not stop the receiver after reaching the End of File.
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* A possible solution is to compute the file length in samples using file size, excluding the last 2 milliseconds, and enable always the
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* valve block
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*/
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std::ifstream file(filename_.c_str(), std::ios::in | std::ios::binary | std::ios::ate);
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std::ifstream::pos_type size;
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if (file.is_open())
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{
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size = file.tellg();
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LOG(INFO) << "Total samples in the file= " << floor(static_cast<double>(size) / static_cast<double>(item_size()));
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}
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else
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{
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std::cout << "file_signal_source: Unable to open the samples file " << filename_.c_str() << '\n';
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LOG(ERROR) << "file_signal_source: Unable to open the samples file " << filename_.c_str();
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}
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std::streamsize ss = std::cout.precision();
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std::cout << std::setprecision(16);
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std::cout << "Processing file " << filename_ << ", which contains " << size << " [bytes]\n";
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std::cout.precision(ss);
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if (size > 0)
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{
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int sample_packet_factor = 2; // 1 byte -> 2 samples
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samples_ = floor(static_cast<double>(size) / static_cast<double>(item_size())) * sample_packet_factor;
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samples_ = samples_ - ceil(0.002 * static_cast<double>(sampling_frequency_)); // process all the samples available in the file excluding the last 2 ms
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}
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}
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CHECK(samples_ > 0) << "File does not contain enough samples to process.";
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const double signal_duration_s = static_cast<double>(samples_) * (1 / static_cast<double>(sampling_frequency_));
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LOG(INFO) << "Total number samples to be processed= " << samples_ << " GNSS signal duration= " << signal_duration_s << " [s]";
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std::cout << "GNSS signal recorded time to be processed: " << signal_duration_s << " [s]\n";
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valve_ = gnss_sdr_make_valve(sizeof(gr_complex), samples_, queue);
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DLOG(INFO) << "valve(" << valve_->unique_id() << ")";
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if (dump_)
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{
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// sink_ = gr_make_file_sink(item_size_, dump_filename_.c_str());
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sink_ = gr::blocks::file_sink::make(sizeof(gr_complex), dump_filename_.c_str());
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DLOG(INFO) << "file_sink(" << sink_->unique_id() << ")";
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}
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if (enable_throttle_control_)
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{
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throttle_ = gr::blocks::throttle::make(sizeof(gr_complex), sampling_frequency_);
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}
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DLOG(INFO) << "File source filename " << filename_;
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DLOG(INFO) << "Samples " << samples_;
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DLOG(INFO) << "Sampling frequency " << sampling_frequency_;
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DLOG(INFO) << "Item type " << item_type_;
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DLOG(INFO) << "Item size " << item_size_;
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DLOG(INFO) << "Repeat " << repeat_;
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DLOG(INFO) << "Dump " << dump_;
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DLOG(INFO) << "Dump filename " << dump_filename_;
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if (in_streams_ > 0)
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{
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{
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LOG(ERROR) << "A signal source does not have an input stream";
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LOG(ERROR) << "A signal source does not have an input stream";
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}
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}
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if (out_streams_ > 1)
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if (out_streams > 1)
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{
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{
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LOG(ERROR) << "This implementation only supports one output stream";
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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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}
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}
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void TwoBitCpxFileSignalSource::connect(gr::top_block_sptr top_block)
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std::tuple<size_t, bool> TwoBitCpxFileSignalSource::itemTypeToSize() const
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{
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{
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if (samples_ > 0)
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auto is_complex = false;
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auto item_size = size_t(sizeof(char)); // default
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if (item_type() == "byte")
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{
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{
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if (enable_throttle_control_ == true)
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item_size = sizeof(char);
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{
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top_block->connect(file_source_, 0, unpack_byte_, 0);
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top_block->connect(unpack_byte_, 0, inter_shorts_to_cpx_, 0);
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top_block->connect(inter_shorts_to_cpx_, 0, throttle_, 0);
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DLOG(INFO) << "connected file source to throttle";
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top_block->connect(throttle_, 0, valve_, 0);
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DLOG(INFO) << "connected throttle to valve";
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if (dump_)
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{
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top_block->connect(valve_, 0, sink_, 0);
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DLOG(INFO) << "connected valve to file sink";
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}
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}
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else
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{
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top_block->connect(file_source_, 0, unpack_byte_, 0);
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top_block->connect(unpack_byte_, 0, inter_shorts_to_cpx_, 0);
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top_block->connect(inter_shorts_to_cpx_, 0, valve_, 0);
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DLOG(INFO) << "connected file source to valve";
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if (dump_)
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{
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top_block->connect(valve_, 0, sink_, 0);
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DLOG(INFO) << "connected valve to file sink";
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}
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}
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}
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}
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else
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else
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{
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{
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if (enable_throttle_control_ == true)
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LOG(WARNING) << item_type() << " unrecognized item type. Using byte.";
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{
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top_block->connect(file_source_, 0, unpack_byte_, 0);
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top_block->connect(unpack_byte_, 0, inter_shorts_to_cpx_, 0);
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top_block->connect(inter_shorts_to_cpx_, 0, throttle_, 0);
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DLOG(INFO) << "connected file source to throttle";
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if (dump_)
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{
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top_block->connect(throttle_, 0, sink_, 0);
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DLOG(INFO) << "connected file source to sink";
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}
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}
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else
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{
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if (dump_)
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{
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top_block->connect(file_source_, 0, unpack_byte_, 0);
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top_block->connect(unpack_byte_, 0, inter_shorts_to_cpx_, 0);
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top_block->connect(inter_shorts_to_cpx_, 0, sink_, 0);
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DLOG(INFO) << "connected file source to sink";
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}
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}
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}
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}
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return std::make_tuple(item_size, is_complex);
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}
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}
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// 1 byte -> 2 samples
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double TwoBitCpxFileSignalSource::packetsPerSample() const { return 2.0; }
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gnss_shared_ptr<gr::block> TwoBitCpxFileSignalSource::source() const { return inter_shorts_to_cpx_; }
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void TwoBitCpxFileSignalSource::disconnect(gr::top_block_sptr top_block)
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void TwoBitCpxFileSignalSource::create_file_source_hook()
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{
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{
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if (samples_ > 0)
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unpack_byte_ = make_unpack_byte_2bit_cpx_samples();
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{
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DLOG(INFO) << "unpack_byte_2bit_cpx_samples(" << unpack_byte_->unique_id() << ")";
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if (enable_throttle_control_ == true)
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inter_shorts_to_cpx_ = gr::blocks::interleaved_short_to_complex::make(false, true); // I/Q swap enabled
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{
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DLOG(INFO) << "interleaved_short_to_complex(" << inter_shorts_to_cpx_->unique_id() << ")";
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top_block->disconnect(file_source_, 0, unpack_byte_, 0);
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DLOG(INFO) << "disconnected file source to unpack_byte_";
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top_block->connect(unpack_byte_, 0, throttle_, 0);
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DLOG(INFO) << "disconnected unpack_byte_ to throttle_";
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top_block->disconnect(throttle_, 0, valve_, 0);
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DLOG(INFO) << "disconnected throttle to valve";
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if (dump_)
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{
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top_block->disconnect(valve_, 0, sink_, 0);
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DLOG(INFO) << "disconnected valve to file sink";
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}
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}
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else
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{
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top_block->disconnect(file_source_, 0, unpack_byte_, 0);
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DLOG(INFO) << "disconnected file source to unpack_byte_";
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top_block->disconnect(unpack_byte_, 0, valve_, 0);
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DLOG(INFO) << "disconnected unpack_byte_ to valve";
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if (dump_)
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{
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top_block->disconnect(valve_, 0, sink_, 0);
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DLOG(INFO) << "disconnected valve to file sink";
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}
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}
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}
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else
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{
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if (enable_throttle_control_ == true)
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{
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top_block->disconnect(file_source_, 0, unpack_byte_, 0);
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DLOG(INFO) << "disconnected file source to unpack_byte_";
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top_block->disconnect(unpack_byte_, 0, throttle_, 0);
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DLOG(INFO) << "disconnected unpack_byte_ to throttle";
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if (dump_)
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{
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top_block->disconnect(unpack_byte_, 0, sink_, 0);
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DLOG(INFO) << "disconnected funpack_byte_ to sink";
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}
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}
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else
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{
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if (dump_)
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{
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top_block->disconnect(file_source_, 0, unpack_byte_, 0);
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DLOG(INFO) << "disconnected file source to unpack_byte_";
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top_block->disconnect(unpack_byte_, 0, sink_, 0);
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DLOG(INFO) << "disconnected unpack_byte_ to sink";
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}
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}
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}
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}
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}
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void TwoBitCpxFileSignalSource::pre_connect_hook(gr::top_block_sptr top_block)
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gr::basic_block_sptr TwoBitCpxFileSignalSource::get_left_block()
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{
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{
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LOG(WARNING) << "Left block of a signal source should not be retrieved";
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top_block->connect(file_source(), 0, unpack_byte_, 0);
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// return gr_block_sptr();
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top_block->connect(unpack_byte_, 0, inter_shorts_to_cpx_, 0);
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return gr::blocks::file_source::sptr();
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DLOG(INFO) << "connected file_source to unpacker";
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}
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}
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void TwoBitCpxFileSignalSource::pre_disconnect_hook(gr::top_block_sptr top_block)
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gr::basic_block_sptr TwoBitCpxFileSignalSource::get_right_block()
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{
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{
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if (samples_ > 0)
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top_block->disconnect(file_source(), 0, unpack_byte_, 0);
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{
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top_block->disconnect(unpack_byte_, 0, inter_shorts_to_cpx_, 0);
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return valve_;
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DLOG(INFO) << "disconnected file_source from unpacker";
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}
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if (enable_throttle_control_ == true)
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{
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return throttle_;
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}
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return unpack_byte_;
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}
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}
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@@ -11,7 +11,7 @@
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|||||||
* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
|
* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
|
||||||
* This file is part of GNSS-SDR.
|
* This file is part of GNSS-SDR.
|
||||||
*
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*
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||||||
* Copyright (C) 2010-2020 (see AUTHORS file for a list of contributors)
|
* Copyright (C) 2010-2021 (see AUTHORS file for a list of contributors)
|
||||||
* SPDX-License-Identifier: GPL-3.0-or-later
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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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* -----------------------------------------------------------------------------
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@@ -20,18 +20,9 @@
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#ifndef GNSS_SDR_TWO_BIT_CPX_FILE_SIGNAL_SOURCE_H
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#ifndef GNSS_SDR_TWO_BIT_CPX_FILE_SIGNAL_SOURCE_H
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||||||
#define GNSS_SDR_TWO_BIT_CPX_FILE_SIGNAL_SOURCE_H
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#define GNSS_SDR_TWO_BIT_CPX_FILE_SIGNAL_SOURCE_H
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#include "signal_source_base.h"
|
#include "file_source_base.h"
|
||||||
|
|
||||||
#include "concurrent_queue.h"
|
|
||||||
#include "unpack_byte_2bit_cpx_samples.h"
|
#include "unpack_byte_2bit_cpx_samples.h"
|
||||||
#include <gnuradio/blocks/file_sink.h>
|
|
||||||
#include <gnuradio/blocks/file_source.h>
|
|
||||||
#include <gnuradio/blocks/interleaved_short_to_complex.h>
|
#include <gnuradio/blocks/interleaved_short_to_complex.h>
|
||||||
#include <gnuradio/blocks/throttle.h>
|
|
||||||
#include <gnuradio/hier_block2.h>
|
|
||||||
#include <pmt/pmt.h>
|
|
||||||
#include <cstdint>
|
|
||||||
#include <string>
|
|
||||||
|
|
||||||
/** \addtogroup Signal_Source
|
/** \addtogroup Signal_Source
|
||||||
* \{ */
|
* \{ */
|
||||||
@@ -45,7 +36,7 @@ class ConfigurationInterface;
|
|||||||
* \brief Class that reads signals samples from a file
|
* \brief Class that reads signals samples from a file
|
||||||
* and adapts it to a SignalSourceInterface
|
* and adapts it to a SignalSourceInterface
|
||||||
*/
|
*/
|
||||||
class TwoBitCpxFileSignalSource : public SignalSourceBase
|
class TwoBitCpxFileSignalSource : public FileSourceBase
|
||||||
{
|
{
|
||||||
public:
|
public:
|
||||||
TwoBitCpxFileSignalSource(const ConfigurationInterface* configuration,
|
TwoBitCpxFileSignalSource(const ConfigurationInterface* configuration,
|
||||||
@@ -56,60 +47,17 @@ public:
|
|||||||
|
|
||||||
~TwoBitCpxFileSignalSource() = default;
|
~TwoBitCpxFileSignalSource() = default;
|
||||||
|
|
||||||
inline size_t item_size() override
|
protected:
|
||||||
{
|
std::tuple<size_t, bool> itemTypeToSize() const override;
|
||||||
return item_size_;
|
double packetsPerSample() const override;
|
||||||
}
|
gnss_shared_ptr<gr::block> source() const override;
|
||||||
|
void create_file_source_hook() override;
|
||||||
void connect(gr::top_block_sptr top_block) override;
|
void pre_connect_hook(gr::top_block_sptr top_block) override;
|
||||||
void disconnect(gr::top_block_sptr top_block) override;
|
void pre_disconnect_hook(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_;
|
|
||||||
}
|
|
||||||
|
|
||||||
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:
|
private:
|
||||||
gr::blocks::file_source::sptr file_source_;
|
|
||||||
gr::blocks::interleaved_short_to_complex::sptr inter_shorts_to_cpx_;
|
|
||||||
unpack_byte_2bit_cpx_samples_sptr unpack_byte_;
|
unpack_byte_2bit_cpx_samples_sptr unpack_byte_;
|
||||||
gnss_shared_ptr<gr::block> valve_;
|
gr::blocks::interleaved_short_to_complex::sptr inter_shorts_to_cpx_;
|
||||||
gr::blocks::file_sink::sptr sink_;
|
|
||||||
gr::blocks::throttle::sptr throttle_;
|
|
||||||
std::string filename_;
|
|
||||||
std::string item_type_;
|
|
||||||
std::string dump_filename_;
|
|
||||||
size_t item_size_;
|
|
||||||
uint64_t samples_;
|
|
||||||
int64_t sampling_frequency_;
|
|
||||||
unsigned int in_streams_;
|
|
||||||
unsigned int out_streams_;
|
|
||||||
bool repeat_;
|
|
||||||
bool dump_;
|
|
||||||
// Throttle control
|
|
||||||
bool enable_throttle_control_;
|
|
||||||
};
|
};
|
||||||
|
|
||||||
|
|
||||||
|
|||||||
Reference in New Issue
Block a user