forked from sdr/gr-osmosdr
227 lines
5.0 KiB
C++
227 lines
5.0 KiB
C++
/* -*- c++ -*- */
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/*
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* Copyright 2012 Dimitri Stolnikov <horiz0n@gmx.net>
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*
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* GNU Radio 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, or (at your option)
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* any later version.
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*
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* GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#include <fstream>
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#include <string>
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#include <sstream>
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#include <boost/assign.hpp>
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#include <boost/format.hpp>
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#include <gnuradio/io_signature.h>
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#include "file_sink_c.h"
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#include "arg_helpers.h"
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using namespace boost::assign;
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file_sink_c_sptr make_file_sink_c(const std::string &args)
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{
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return gnuradio::get_initial_sptr(new file_sink_c(args));
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}
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file_sink_c::file_sink_c(const std::string &args) :
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gr::hier_block2("file_sink_c",
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gr::io_signature::make(1, 1, sizeof (gr_complex)),
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gr::io_signature::make(0, 0, 0))
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{
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std::string filename;
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bool append = false;
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bool throttle = false;
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_freq = 0;
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_rate = 0;
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dict_t dict = params_to_dict(args);
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if (dict.count("file"))
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filename = dict["file"];
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if (dict.count("freq"))
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_freq = boost::lexical_cast< double >( dict["freq"] );
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if (dict.count("rate"))
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_rate = boost::lexical_cast< double >( dict["rate"] );
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if (dict.count("throttle"))
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throttle = ("true" == dict["throttle"] ? true : false);
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if (dict.count("append"))
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append = ("true" == dict["append"] ? true : false);
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if (!filename.length())
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throw std::runtime_error("No file name specified.");
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if (_freq < 0)
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throw std::runtime_error("Parameter 'freq' may not be negative.");
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if (0 == _rate && throttle)
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throw std::runtime_error("Parameter 'rate' is missing in arguments.");
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_file_rate = _rate;
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_sink = gr::blocks::file_sink::make( sizeof(gr_complex),
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filename.c_str(),
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append);
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_throttle = gr::blocks::throttle::make( sizeof(gr_complex), _file_rate );
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if (throttle) {
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connect( self(), 0, _throttle, 0 );
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connect( _throttle, 0, _sink, 0 );
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} else {
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connect( self(), 0, _sink, 0 );
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}
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}
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file_sink_c::~file_sink_c()
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{
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}
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std::string file_sink_c::name()
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{
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return "IQ File sink";
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}
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std::vector<std::string> file_sink_c::get_devices( bool fake )
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{
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std::vector<std::string> devices;
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if ( fake )
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{
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std::string args = "file='/path/to/your/file'";
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args += ",rate=1e6,freq=100e6,throttle=true";
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args += ",label='Complex Sampled (IQ) File'";
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devices.push_back( args );
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}
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return devices;
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}
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size_t file_sink_c::get_num_channels( void )
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{
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return 1;
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}
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osmosdr::meta_range_t file_sink_c::get_sample_rates( void )
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{
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osmosdr::meta_range_t range;
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range += osmosdr::range_t( _file_rate , _file_rate); /* always return file's original rate */
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return range;
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}
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double file_sink_c::set_sample_rate( double rate )
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{
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if ( _file_rate != rate )
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{
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std::cerr << boost::format("WARNING: Overriding original sample rate of %g with %g")
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% _file_rate % rate
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<< std::endl;
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}
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_throttle->set_sample_rate( rate );
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_rate = rate;
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return get_sample_rate();
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}
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double file_sink_c::get_sample_rate( void )
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{
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return _rate;
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}
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osmosdr::freq_range_t file_sink_c::get_freq_range( size_t chan )
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{
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return osmosdr::freq_range_t(_freq, _freq);
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}
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double file_sink_c::set_center_freq( double freq, size_t chan )
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{
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return get_center_freq(chan);
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}
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double file_sink_c::get_center_freq( size_t chan )
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{
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return _freq;
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}
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double file_sink_c::set_freq_corr( double ppm, size_t chan )
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{
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return get_freq_corr( chan );
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}
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double file_sink_c::get_freq_corr( size_t chan )
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{
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return 0;
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}
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std::vector<std::string> file_sink_c::get_gain_names( size_t chan )
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{
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return std::vector< std::string >();
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}
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osmosdr::gain_range_t file_sink_c::get_gain_range( size_t chan )
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{
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return osmosdr::gain_range_t();
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}
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osmosdr::gain_range_t file_sink_c::get_gain_range( const std::string & name, size_t chan )
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{
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return get_gain_range( chan );
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}
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double file_sink_c::set_gain( double gain, size_t chan )
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{
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return get_gain(chan);
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}
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double file_sink_c::set_gain( double gain, const std::string & name, size_t chan )
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{
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return set_gain(chan);
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}
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double file_sink_c::get_gain( size_t chan )
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{
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return 0;
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}
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double file_sink_c::get_gain( const std::string & name, size_t chan )
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{
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return get_gain(chan);
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}
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std::vector< std::string > file_sink_c::get_antennas( size_t chan )
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{
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return std::vector< std::string >();
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}
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std::string file_sink_c::set_antenna( const std::string & antenna, size_t chan )
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{
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return get_antenna(chan);
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}
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std::string file_sink_c::get_antenna( size_t chan )
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{
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return "";
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}
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