3 * Copyright 2010 Free Software Foundation, Inc.
5 * This file is part of GNU Radio
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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)
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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.
26 #include <gri_fir_filter_with_buffer_ccf.h>
29 gri_fir_filter_with_buffer_ccf::gri_fir_filter_with_buffer_ccf(const std::vector<float> &taps)
35 gri_fir_filter_with_buffer_ccf::~gri_fir_filter_with_buffer_ccf()
41 gri_fir_filter_with_buffer_ccf::filter (gr_complex input)
46 for(i = ntaps()-1; i > 0; i--) {
47 d_buffer[i] = d_buffer[i-1];
51 gr_complex out = d_buffer[0]*d_taps[0];
52 for(i = 1; i < ntaps(); i++) {
53 out += d_buffer[i]*d_taps[i];
60 d_buffer[d_idx] = input;
61 d_buffer[d_idx+ntaps()] = input;
62 //d_idx = (d_idx + 1) % ntaps();
67 gr_complex out = d_buffer[d_idx]*d_taps[0];
68 for(i = 1; i < ntaps(); i++) {
69 out += d_buffer[d_idx + i]*d_taps[i];
76 gri_fir_filter_with_buffer_ccf::filterN (gr_complex output[],
77 const gr_complex input[],