3 * Copyright 2004 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_iir_filter_ffd.h>
28 #include <gr_io_signature.h>
32 gr_iir_filter_ffd_sptr
33 gr_make_iir_filter_ffd (const std::vector<double> &fftaps,
34 const std::vector<double> &fbtaps) throw (std::invalid_argument)
36 return gr_iir_filter_ffd_sptr (new gr_iir_filter_ffd (fftaps, fbtaps));
39 gr_iir_filter_ffd::gr_iir_filter_ffd (const std::vector<double> &fftaps,
40 const std::vector<double> &fbtaps) throw (std::invalid_argument)
42 : gr_sync_block ("iir_filter_ffd",
43 gr_make_io_signature (1, 1, sizeof (float)),
44 gr_make_io_signature (1, 1, sizeof (float))),
45 d_iir (fftaps, fbtaps),
48 // fprintf (stderr, "gr_iir_filter_ffd::ctor\n");
51 gr_iir_filter_ffd::~gr_iir_filter_ffd ()
57 gr_iir_filter_ffd::set_taps (const std::vector<double> &fftaps,
58 const std::vector<double> &fbtaps) throw (std::invalid_argument)
61 d_new_fftaps = fftaps;
62 d_new_fbtaps = fbtaps;
67 gr_iir_filter_ffd::work (int noutput_items,
68 gr_vector_const_void_star &input_items,
69 gr_vector_void_star &output_items)
71 const float *in = (const float *) input_items[0];
72 float *out = (float *) output_items[0];
76 d_iir.set_taps (d_new_fftaps, d_new_fbtaps);
80 d_iir.filter_n (out, in, noutput_items);