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Diffstat (limited to 'gr-atsc/lib/atsc_equalizer.cc')
-rw-r--r-- | gr-atsc/lib/atsc_equalizer.cc | 105 |
1 files changed, 0 insertions, 105 deletions
diff --git a/gr-atsc/lib/atsc_equalizer.cc b/gr-atsc/lib/atsc_equalizer.cc deleted file mode 100644 index 2e00f5f374..0000000000 --- a/gr-atsc/lib/atsc_equalizer.cc +++ /dev/null @@ -1,105 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2006,2010 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 <gnuradio/atsc/equalizer.h> -#include <gnuradio/atsc/create_atsci_equalizer.h> -#include <gnuradio/io_signature.h> -#include <gnuradio/atsc/consts.h> -#include <gnuradio/atsc/syminfo_impl.h> - - -atsc_equalizer_sptr -atsc_make_equalizer() -{ - return gnuradio::get_initial_sptr(new atsc_equalizer()); -} - -// had atsc_equalizer(atsci_equalizer *equalizer) -atsc_equalizer::atsc_equalizer() - : gr::sync_block("atsc_equalizer", - gr::io_signature::make(2, 2, sizeof(float)), - gr::io_signature::make(2, 2, sizeof(float))) -{ - d_equalizer = create_atsci_equalizer_lms(); -} - -atsc_equalizer::~atsc_equalizer () -{ - // Anything that isn't automatically cleaned up... - - delete d_equalizer; -} - - -void -atsc_equalizer::forecast (int noutput_items, gr_vector_int &ninput_items_required) -{ - - int ntaps = d_equalizer->ntaps (); - - unsigned ninputs = ninput_items_required.size(); - for (unsigned i = 0; i < ninputs; i++) - ninput_items_required[i] = fixed_rate_noutput_to_ninput (noutput_items + ntaps); - - -} - - - -int -atsc_equalizer::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]; - const atsc::syminfo *in_tags = (const atsc::syminfo *) input_items[1]; - float *out = (float *) output_items[0]; - atsc::syminfo *out_tags = (atsc::syminfo *) output_items[1]; - - assert(sizeof(float) == sizeof(atsc::syminfo)); - - int ntaps = d_equalizer->ntaps (); - int npretaps = d_equalizer->npretaps (); - - assert (ntaps >= 1); - assert (npretaps >= 0 && npretaps < ntaps); - - int offset = ntaps - npretaps - 1; - assert (offset >= 0 && offset < ntaps); - - - // peform the actual equalization - - d_equalizer->filter (in, in_tags + offset, - out, noutput_items); - - // write the output tags - - for (int i = 0; i < noutput_items; i++) - out_tags[i] = in_tags[i + offset]; - - return noutput_items; -} |