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/* -*- c++ -*- */
/*
* Copyright 2004 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* 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 <gnuradio/io_signature.h>
#include "prune_vectors_impl.h"
namespace gr {
namespace dab {
prune_vectors::sptr
prune_vectors::make(size_t itemsize, unsigned int length, unsigned int prune_start, unsigned int prune_end)
{
return gnuradio::get_initial_sptr
(new prune_vectors_impl(itemsize, length, prune_start, prune_end));
}
prune_vectors_impl::prune_vectors_impl(size_t itemsize, unsigned int length, unsigned int prune_start,
unsigned int prune_end)
: gr::sync_block("prune_vectors",
gr::io_signature::make(1, 1, itemsize * length),
gr::io_signature::make(1, 1, itemsize * (length - prune_start - prune_end))),
d_itemsize(itemsize), d_length(length), d_prune_start(prune_start), d_prune_end(prune_end)
{
if (prune_start + prune_end > length)
fprintf(stderr, "want to prune more than existing");
}
int
prune_vectors_impl::work(int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items)
{
char const *in = (const char *) input_items[0];
char *out = (char *) output_items[0];
for (int i = 0; i < noutput_items; i++) {
memcpy(out, in + d_prune_start * d_itemsize, (d_length - d_prune_start - d_prune_end) * d_itemsize);
in += d_length * d_itemsize;
out += (d_length - d_prune_start - d_prune_end) * d_itemsize;
}
return noutput_items;
}
}
}
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