gr-satnogs/lib/frame_decoder_impl.cc

94 lines
2.6 KiB
C++

/* -*- c++ -*- */
/*
* gr-satnogs: SatNOGS GNU Radio Out-Of-Tree Module
*
* Copyright (C) 2019, Libre Space Foundation <http://libre.space>
*
* This program 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.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gnuradio/io_signature.h>
#include "frame_decoder_impl.h"
namespace gr
{
namespace satnogs
{
frame_decoder::sptr
frame_decoder::make (decoder::decoder_sptr decoder_object, int input_size)
{
return gnuradio::get_initial_sptr (new frame_decoder_impl (decoder_object,
input_size));
}
/*
* The private constructor
*/
frame_decoder_impl::frame_decoder_impl (decoder::decoder_sptr decoder_object,
int input_size) :
gr::sync_block ("frame_decoder",
gr::io_signature::make (1, 1, input_size),
gr::io_signature::make (0, 0, 0)),
d_decoder (decoder_object)
{
if (input_size != decoder_object->sizeof_input_item ()) {
throw std::invalid_argument (
"frame_decoder: Size mismatch between the block input and the decoder");
}
message_port_register_in (pmt::mp ("reset"));
message_port_register_out (pmt::mp ("out"));
set_msg_handler (pmt::mp ("reset"),
boost::bind (&frame_decoder_impl::reset, this, _1));
}
/*
* Our virtual destructor.
*/
frame_decoder_impl::~frame_decoder_impl ()
{
}
void
frame_decoder_impl::reset (pmt::pmt_t m)
{
d_decoder->reset();
}
int
frame_decoder_impl::work (int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items)
{
const void *in = input_items[0];
decoder_status_t status = d_decoder->decode (in, noutput_items);
if (status.decode_success) {
message_port_pub (pmt::mp ("out"), status.data);
}
// Tell runtime system how many output items we produced.
return status.consumed;
}
} /* namespace satnogs */
} /* namespace gr */