gr-osmosdr/lib/osmosdr/osmosdr_snk_c.cc

89 lines
2.9 KiB
C++

/* -*- c++ -*- */
/*
* Copyright 2012 Dimitri Stolnikov <horiz0n@gmx.net>
*
* GNU Radio 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, or (at your option)
* any later version.
*
* GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
/*
* config.h is generated by configure. It contains the results
* of probing for features, options etc. It should be the first
* file included in your .cc file.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "osmosdr_snk_c.h"
#include <gr_io_signature.h>
#include <gr_audio_sink.h>
#include <gr_complex_to_xxx.h>
/*
* Create a new instance of osmosdr_snk_c and return
* a boost shared_ptr. This is effectively the public constructor.
*/
osmosdr_snk_c_sptr
osmosdr_make_snk_c (const std::string &args)
{
return gnuradio::get_initial_sptr(new osmosdr_snk_c (args));
}
/*
* Specify constraints on number of input and output streams.
* This info is used to construct the input and output signatures
* (2nd & 3rd args to gr_block's constructor). The input and
* output signatures are used by the runtime system to
* check that a valid number and type of inputs and outputs
* are connected to this block. In this case, we accept
* only 1 input and 0 output.
*/
static const int MIN_IN = 1; // mininum number of input streams
static const int MAX_IN = 1; // maximum number of input streams
static const int MIN_OUT = 0; // minimum number of output streams
static const int MAX_OUT = 0; // maximum number of output streams
/*
* The private constructor
*/
osmosdr_snk_c::osmosdr_snk_c (const std::string & args)
: gr_hier_block2 ("osmosdr_snk_c",
gr_make_io_signature (MIN_IN, MAX_IN, sizeof (gr_complex)),
gr_make_io_signature (MIN_OUT, MAX_OUT, sizeof (gr_complex))),
osmosdr_tx_control(args)
{
throw std::runtime_error("FIXME: OsmoSDR sink is not yet implemented");
/* Audio sink; sample rate is 96kHz by default */
audio_sink::sptr snk = audio_make_sink(96000, audio_dev_name(), true);
gr_complex_to_real_sptr real_part = gr_make_complex_to_real(1);
gr_complex_to_imag_sptr imag_part = gr_make_complex_to_imag(1);
connect(self(), 0, real_part, 0);
connect(self(), 0, imag_part, 0);
connect(imag_part, 0, snk, 0); /* Left is I */
connect(real_part, 0, snk, 1); /* Right is Q */
}
/*
* Our virtual destructor.
*/
osmosdr_snk_c::~osmosdr_snk_c ()
{
// nothing else required in this example
}