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/* -*- c++ -*- */
/*
* Copyright 2012 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "streams_to_stream_impl.h"
#include <gnuradio/io_signature.h>
namespace gr {
namespace blocks {
streams_to_stream::sptr streams_to_stream::make(size_t itemsize, size_t nstreams)
{
return gnuradio::make_block_sptr<streams_to_stream_impl>(itemsize, nstreams);
}
streams_to_stream_impl::streams_to_stream_impl(size_t itemsize, size_t nstreams)
: sync_interpolator("streams_to_stream",
io_signature::make(nstreams, nstreams, itemsize),
io_signature::make(1, 1, itemsize),
nstreams)
{
}
int streams_to_stream_impl::work(int noutput_items,
gr_vector_const_void_star& input_items,
gr_vector_void_star& output_items)
{
size_t itemsize = output_signature()->sizeof_stream_item(0);
const char** inv = (const char**)&input_items[0];
char* out = (char*)output_items[0];
int nstreams = input_items.size();
assert(noutput_items % nstreams == 0);
int ni = noutput_items / nstreams;
for (int i = 0; i < ni; i++) {
for (int j = 0; j < nstreams; j++) {
memcpy(out, inv[j], itemsize);
out += itemsize;
inv[j] += itemsize;
}
}
return noutput_items;
}
} /* namespace blocks */
} /* namespace gr */
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