3 * Copyright 2005 Free Software Foundation, Inc.
5 * This file is part of GNU Radio
7 * GNU Radio is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 3, or (at your option)
12 * GNU Radio is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with GNU Radio; see the file COPYING. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street,
20 * Boston, MA 02110-1301, USA.
27 #include <gr_streams_to_stream.h>
28 #include <gr_io_signature.h>
30 gr_streams_to_stream_sptr
31 gr_make_streams_to_stream (size_t item_size, size_t nstreams)
33 return gr_streams_to_stream_sptr (new gr_streams_to_stream (item_size, nstreams));
36 gr_streams_to_stream::gr_streams_to_stream (size_t item_size, size_t nstreams)
37 : gr_sync_interpolator ("streams_to_stream",
38 gr_make_io_signature (nstreams, nstreams, item_size),
39 gr_make_io_signature (1, 1, item_size),
45 gr_streams_to_stream::work (int noutput_items,
46 gr_vector_const_void_star &input_items,
47 gr_vector_void_star &output_items)
49 size_t item_size = output_signature()->sizeof_stream_item (0);
51 const char **inv = (const char **) &input_items[0];
52 char *out = (char *) output_items[0];
53 int nstreams = input_items.size();
55 assert (noutput_items % nstreams == 0);
56 int ni = noutput_items / nstreams;
58 for (int i = 0; i < ni; i++){
59 for (int j = 0; j < nstreams; j++){
60 memcpy(out, inv[j], item_size);