3 * Copyright 2008 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.
30 #include <gr_io_signature.h>
33 gr_make_@BASE_NAME@ (int length, @O_TYPE@ scale, int max_iter)
35 return @SPTR_NAME@ (new @NAME@ (length, scale, max_iter));
38 @NAME@::@NAME@ (int length, @O_TYPE@ scale, int max_iter)
39 : gr_sync_block ("@BASE_NAME@",
40 gr_make_io_signature (1, 1, sizeof (@I_TYPE@)),
41 gr_make_io_signature (1, 1, sizeof (@O_TYPE@))),
57 @NAME@::set_length_and_scale(int length, @O_TYPE@ scale)
59 d_new_length = length;
65 @NAME@::work (int noutput_items,
66 gr_vector_const_void_star &input_items,
67 gr_vector_void_star &output_items)
70 d_length = d_new_length;
71 d_scale = d_new_scale;
72 set_history(d_length);
74 return 0; // history requirements might have changed
77 const @I_TYPE@ *in = (const @I_TYPE@ *) input_items[0];
78 @O_TYPE@ *out = (@O_TYPE@ *) output_items[0];
81 int num_iter = (noutput_items>d_max_iter) ? d_max_iter : noutput_items;
82 for (int i = 0; i < d_length-1 ; i++) {
86 for (int i = 0; i < num_iter; i++) {
87 sum += in[i+d_length-1];
88 out[i] = sum * d_scale;