mirror of
https://github.com/gnss-sdr/gnss-sdr
synced 2025-10-31 15:23:04 +00:00
Added Spirent GSS6450 file signal source
This commit is contained in:
Antonio Ramos
@@ -139,6 +139,7 @@ set(SIGNAL_SOURCE_ADAPTER_SOURCES file_signal_source.cc
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gen_signal_source.cc
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nsr_file_signal_source.cc
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spir_file_signal_source.cc
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spir_gss6450_file_signal_source.cc
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rtl_tcp_signal_source.cc
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${OPT_DRIVER_SOURCES}
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)
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@@ -0,0 +1,261 @@
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/*!
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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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* Copyright (C) 2010-2015 (see AUTHORS file for a list of contributors)
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*
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* GNSS-SDR is a software defined Global Navigation
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* Satellite Systems receiver
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*
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* This file is not part of GNSS-SDR.
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*
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* GNSS-SDR is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GNSS-SDR is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNSS-SDR. If not, see <http://www.gnu.org/licenses/>.
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*
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* -------------------------------------------------------------------------
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*/
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#include "spir_gss6450_file_signal_source.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 <cstdio>
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#include <gflags/gflags.h>
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#include <glog/logging.h>
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#include "configuration_interface.h"
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using google::LogMessage;
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DEFINE_string(spir_gss6450_signal_source, "-",
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"If defined, path to the file containing the Spirent GSS6450 signal samples (overrides the configuration file)");
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SpirGSS6450FileSignalSource::SpirGSS6450FileSignalSource(ConfigurationInterface* configuration,
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std::string role, unsigned int in_streams, unsigned int out_streams, gr::msg_queue::sptr queue) :
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role_(role), in_streams_(in_streams), out_streams_(out_streams), queue_(queue)
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{
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std::string default_filename = "../data/my_capture.dat";
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std::string default_dump_filename = "../data/my_capture_dump.dat";
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item_type_ = "int";
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samples_ = configuration->property(role + ".samples", 0);
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sampling_frequency_ = configuration->property(role + ".sampling_frequency", 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_spir_gss6450_signal_source.compare("-") != 0) filename_= FLAGS_spir_gss6450_signal_source;
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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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adc_bits_ = configuration->property(role + ".adc_bits", 4);
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n_channels_ = configuration->property(role + ".RF_channels", 1);
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sel_ch_ = configuration->property(role + ".sel_ch", 1);
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item_size_ = sizeof(int);
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long bytes_seek = 65536;
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double sample_size_byte = static_cast<double>(adc_bits_) / 4.0;
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int samples_per_item = 16 / adc_bits_;
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if(sel_ch_ > n_channels_) { LOG(WARNING) << "Invalid RF channel selection"; }
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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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file_source_->seek(bytes_seek, SEEK_SET);
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unpack_ii_ = gr::blocks::packed_to_unpacked_ii::make(2 * adc_bits_, gr::GR_MSB_FIRST);
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unpack_spir_ = make_unpack_spir_gss6450_samples(n_channels_, sel_ch_, item_size_);
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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 "
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<< std::endl
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<< "but the specified file is unreachable by GNSS-SDR."
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<< std::endl
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<< "Please modify your configuration file"
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<< std::endl
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<< "and point SignalSource.filename to a valid raw data file. Then:"
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<< std::endl
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<< "$ gnss-sdr --config_file=/path/to/my_GNSS_SDR_configuration.conf"
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<< std::endl
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<< "Examples of configuration files available at:"
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<< std::endl
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<< GNSSSDR_INSTALL_DIR "/share/gnss-sdr/conf/"
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<< std::endl;
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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 100 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() << std::endl;
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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]" << std::endl;
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std::cout.precision (ss);
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if(size > 0)
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{
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samples_ = floor(static_cast<double>(size - bytes_seek) / (sample_size_byte * static_cast<double>(n_channels_)));
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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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double signal_duration_s;
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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]" << std::endl;
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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::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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}
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SpirGSS6450FileSignalSource::~SpirGSS6450FileSignalSource()
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{}
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void SpirGSS6450FileSignalSource::connect(gr::top_block_sptr top_block)
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{
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if (samples_ > 0)
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{
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if (enable_throttle_control_)
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{
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top_block->connect(file_source_, 0, unpack_ii_, 0);
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top_block->connect(unpack_ii_, 0, unpack_spir_, 0);
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top_block->connect(unpack_spir_, 0, throttle_, 0);
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top_block->connect(throttle_, 0, valve_, 0);
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}
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else
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{
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top_block->connect(file_source_, 0, unpack_ii_, 0);
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top_block->connect(unpack_ii_, 0, unpack_spir_, 0);
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top_block->connect(unpack_spir_, 0, valve_, 0);
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}
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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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LOG(WARNING) << "0 samples to read";
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}
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}
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void SpirGSS6450FileSignalSource::disconnect(gr::top_block_sptr top_block)
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{
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if (samples_ > 0)
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{
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if (enable_throttle_control_)
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{
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top_block->disconnect(file_source_, 0, unpack_ii_, 0);
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top_block->disconnect(unpack_ii_, 0, unpack_spir_, 0);
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top_block->disconnect(unpack_spir_, 0, throttle_, 0);
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top_block->disconnect(throttle_, 0, valve_, 0);
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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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}
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}
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else
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{
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top_block->disconnect(file_source_, 0, unpack_ii_, 0);
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top_block->disconnect(unpack_ii_, 0, unpack_spir_, 0);
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top_block->disconnect(unpack_spir_, 0, valve_, 0);
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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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}
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}
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}
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else
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{
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LOG(WARNING) << "Nothing to disconnect";
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}
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}
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gr::basic_block_sptr SpirGSS6450FileSignalSource::get_left_block()
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{
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LOG(WARNING) << "Left block of a signal source should not be retrieved";
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return gr::blocks::file_source::sptr();
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}
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gr::basic_block_sptr SpirGSS6450FileSignalSource::get_right_block()
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{
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if(samples_ > 0) { return valve_; }
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else
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{
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if(enable_throttle_control_) { return throttle_; }
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else { return unpack_spir_; }
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}
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}
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@@ -0,0 +1,130 @@
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/*!
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* \file spir_file_signal_source.h
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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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* Copyright (C) 2010-2015 (see AUTHORS file for a list of contributors)
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*
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* GNSS-SDR is a software defined Global Navigation
|
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* Satellite Systems receiver
|
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*
|
||||
* This file is not 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 <http://www.gnu.org/licenses/>.
|
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*
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* -------------------------------------------------------------------------
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*/
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#ifndef GNSS_SDR_SPIR_GSS6450_FILE_SIGNAL_SOURCE_H_
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#define GNSS_SDR_SPIR_GSS6450_FILE_SIGNAL_SOURCE_H_
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#include <string>
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#include <gnuradio/blocks/file_source.h>
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#include <gnuradio/blocks/file_sink.h>
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#include <gnuradio/blocks/throttle.h>
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#include <gnuradio/blocks/packed_to_unpacked_ii.h>
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#include <gnuradio/hier_block2.h>
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#include <gnuradio/msg_queue.h>
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#include "gnss_block_interface.h"
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#include "gnss_sdr_valve.h"
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#include "unpack_spir_gss6450_samples.h"
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class ConfigurationInterface;
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/*!
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* \brief Class that reads signals samples from a file
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* and adapts it to a SignalSourceInterface
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*/
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class SpirGSS6450FileSignalSource: public GNSSBlockInterface
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{
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public:
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SpirGSS6450FileSignalSource(ConfigurationInterface* configuration, std::string role,
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unsigned int in_streams, unsigned int out_streams, gr::msg_queue::sptr queue);
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virtual ~SpirGSS6450FileSignalSource();
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inline std::string role() override
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{
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return role_;
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}
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inline std::string implementation() override
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{
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return "Spir_GSS6450_File_Signal_Source";
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}
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inline size_t item_size() override
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{
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return item_size_;
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}
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void connect(gr::top_block_sptr top_block) override;
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void disconnect(gr::top_block_sptr top_block) override;
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gr::basic_block_sptr get_left_block() override;
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gr::basic_block_sptr get_right_block() override;
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inline std::string filename() const
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{
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return filename_;
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}
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inline std::string item_type() const
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{
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return item_type_;
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}
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inline bool repeat() const
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{
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return repeat_;
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}
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inline long sampling_frequency() const
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{
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return sampling_frequency_;
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}
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inline long samples() const
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{
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return samples_;
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}
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private:
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unsigned long long samples_;
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long sampling_frequency_;
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std::string filename_;
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bool repeat_;
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bool dump_;
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std::string dump_filename_;
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std::string role_;
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std::string item_type_;
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unsigned int in_streams_;
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unsigned int out_streams_;
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unsigned int adc_bits_;
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unsigned int n_channels_;
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unsigned int sel_ch_;
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gr::blocks::file_source::sptr file_source_;
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gr::blocks::packed_to_unpacked_ii::sptr unpack_ii_;
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unpack_spir_gss6450_samples_sptr unpack_spir_;
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boost::shared_ptr<gr::block> valve_;
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gr::blocks::file_sink::sptr sink_;
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gr::blocks::throttle::sptr throttle_;
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gr::msg_queue::sptr queue_;
|
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size_t item_size_;
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bool enable_throttle_control_;
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};
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#endif /*GNSS_SDR_SPIR_GSS6450_FILE_SIGNAL_SOURCE_H_*/
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@@ -23,6 +23,7 @@ set(SIGNAL_SOURCE_GR_BLOCKS_SOURCES
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unpack_intspir_1bit_samples.cc
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rtl_tcp_signal_source_c.cc
|
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unpack_2bit_samples.cc
|
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unpack_spir_gss6450_samples.cc
|
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)
|
||||
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include_directories(
|
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|
||||
@@ -0,0 +1,75 @@
|
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/*!
|
||||
* \file unpack_intspir_1bit_samples.cc
|
||||
*
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||||
* \brief Unpacks SPIR int samples to NSR 1 bit samples
|
||||
* \author Fran Fabra fabra (at) ice.csic.es
|
||||
* -------------------------------------------------------------------------
|
||||
*
|
||||
* Copyright (C) 2010-2015 (see AUTHORS file for a list of contributors)
|
||||
*
|
||||
* GNSS-SDR is a software defined Global Navigation
|
||||
* Satellite Systems receiver
|
||||
*
|
||||
* This file is not 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 <http://www.gnu.org/licenses/>.
|
||||
*
|
||||
* -------------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
|
||||
#include "unpack_spir_gss6450_samples.h"
|
||||
#include <gnuradio/io_signature.h>
|
||||
|
||||
|
||||
|
||||
unpack_spir_gss6450_samples_sptr make_unpack_spir_gss6450_samples(unsigned int n_chann, unsigned int sel_ch, size_t item_size)
|
||||
{
|
||||
return unpack_spir_gss6450_samples_sptr(new unpack_spir_gss6450_samples(n_chann, sel_ch, item_size));
|
||||
}
|
||||
|
||||
|
||||
unpack_spir_gss6450_samples::unpack_spir_gss6450_samples(
|
||||
unsigned int n_chann, unsigned int sel_ch, size_t item_size) : gr::block("unpack_spir_gss6450_samples",
|
||||
gr::io_signature::make(1, 1, sizeof(int)),
|
||||
gr::io_signature::make(1, 1, sizeof(gr_complex)))
|
||||
{
|
||||
d_channels = n_chann;
|
||||
d_sel_ch = sel_ch;
|
||||
item_size_ = item_size;
|
||||
ch_processing = 1;
|
||||
}
|
||||
|
||||
void unpack_spir_gss6450_samples::forecast(int noutput_items, gr_vector_int &ninput_items_required)
|
||||
{
|
||||
ninput_items_required[0] = d_channels * noutput_items;
|
||||
}
|
||||
|
||||
|
||||
unpack_spir_gss6450_samples::~unpack_spir_gss6450_samples()
|
||||
{}
|
||||
|
||||
|
||||
int unpack_spir_gss6450_samples::general_work(int noutput_items,
|
||||
gr_vector_const_void_star &input_items,
|
||||
gr_vector_void_star &output_items)
|
||||
{
|
||||
const int *in = reinterpret_cast<const int *>(input_items[0]);
|
||||
gr_complex *out = reinterpret_cast<gr_complex*>(output_items[0]);
|
||||
|
||||
|
||||
|
||||
|
||||
return noutput_items;
|
||||
}
|
||||
@@ -0,0 +1,62 @@
|
||||
/*!
|
||||
* \file unpack_intspir_1bit_samples.h
|
||||
*
|
||||
* \brief Unpacks SPIR int samples to NSR 1 bit samples
|
||||
* \author Fran Fabra fabra (at) ice.csic.es
|
||||
* -------------------------------------------------------------------------
|
||||
*
|
||||
* Copyright (C) 2010-2015 (see AUTHORS file for a list of contributors)
|
||||
*
|
||||
* GNSS-SDR is a software defined Global Navigation
|
||||
* Satellite Systems receiver
|
||||
*
|
||||
* This file is not 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 <http://www.gnu.org/licenses/>.
|
||||
*
|
||||
* -------------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
#ifndef GNSS_SDR_UNPACK_SPIR_GSS6450_SAMPLES_H
|
||||
#define GNSS_SDR_UNPACK_SPIR_GSS6450_SAMPLES_H
|
||||
|
||||
#include <gnuradio/block.h>
|
||||
|
||||
class unpack_spir_gss6450_samples;
|
||||
|
||||
typedef boost::shared_ptr<unpack_spir_gss6450_samples> unpack_spir_gss6450_samples_sptr;
|
||||
|
||||
unpack_spir_gss6450_samples_sptr make_unpack_spir_gss6450_samples(unsigned int n_chann, unsigned int sel_ch, size_t item_size);
|
||||
|
||||
|
||||
class unpack_spir_gss6450_samples: public gr::block
|
||||
{
|
||||
public:
|
||||
int general_work (int noutput_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);
|
||||
~unpack_spir_gss6450_samples();
|
||||
|
||||
private:
|
||||
unsigned int d_channels;
|
||||
unsigned int d_sel_ch;
|
||||
unsigned int ch_processing;
|
||||
size_t item_size_;
|
||||
friend unpack_spir_gss6450_samples_sptr make_unpack_spir_gss6450_samples_sptr(unsigned int n_chann, unsigned int sel_ch, size_t item_size);
|
||||
unpack_spir_gss6450_samples(unsigned int n_chann, unsigned int sel_ch, size_t item_size);
|
||||
|
||||
};
|
||||
|
||||
#endif
|
||||
Reference in New Issue
Block a user