diff options
Diffstat (limited to 'gr-wavelet/lib/wavelet_wvps_ff_impl.cc')
-rw-r--r-- | gr-wavelet/lib/wavelet_wvps_ff_impl.cc | 98 |
1 files changed, 0 insertions, 98 deletions
diff --git a/gr-wavelet/lib/wavelet_wvps_ff_impl.cc b/gr-wavelet/lib/wavelet_wvps_ff_impl.cc deleted file mode 100644 index b86859b0ae..0000000000 --- a/gr-wavelet/lib/wavelet_wvps_ff_impl.cc +++ /dev/null @@ -1,98 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2004,2010,2012 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. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <wavelet_wvps_ff_impl.h> -#include <gr_io_signature.h> -#include <string.h> - -static int -ceil_log2(int k) -{ - int m = 0; - for (int n = k-1; n > 0; n >>= 1) m++; - return m; -} - -wavelet_wvps_ff_sptr -wavelet_make_wvps_ff(int ilen) -{ - return gnuradio::get_initial_sptr(new wavelet_wvps_ff_impl(ilen)); -} - -wavelet_wvps_ff_impl::wavelet_wvps_ff_impl(int ilen) - : gr_sync_block("wvps_ff", - gr_make_io_signature(1, 1, sizeof(float) * ilen), - gr_make_io_signature(1, 1, sizeof(float) * ceil_log2(ilen))), - d_ilen(ilen), d_olen(ceil_log2(ilen)) -{ -} - -// input vector assumed to be output from gsl wavelet computation - -int -wavelet_wvps_ff_impl::work(int noutput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items) -{ - const float *in = (const float *) input_items[0]; - float *out = (float *) output_items[0]; - - for (int count = 0; count < noutput_items; count++) { - - // any power? - - if (in[0] == 0.0) { - for (int i = 0; i < d_olen; i++) - out[i] = 0.0; - - } else { - - // get power normalization from 0-th wavelet coefficient - - float scl = 1.0/(in[0]*in[0]); - int k = 1; - - // sum powers over sequences of bins, - // sequence lengths in increasing powers of 2 - - for (int e = 0; e < d_olen; e++) { - int m = 01<<e; - float sum = 0.0; - - for (int l = 0; l < m; l++) - sum += (in[k+l]*in[k+l]); - - out[e] = scl*sum; - k += m; - } - } - - in += d_ilen; - out += d_olen; - } - - return noutput_items; -} |