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author | Tom Rondeau | 2011-07-17 17:25:57 -0400 |
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committer | Tom Rondeau | 2011-07-17 17:25:57 -0400 |
commit | f7b9a0c6922c86cd54c1300ab45209d8e2db13df (patch) | |
tree | 5ede528cd302e85bc40edcad876525659f4e1ed2 /gr-digital/lib/digital_constellation_decoder_cb.cc | |
parent | caa4af889f54a696d3a533c77c5016df82f2987c (diff) | |
parent | 04409d2ba42ac5b372a7b6bb7e9c8de5722d76d7 (diff) | |
download | gnuradio-f7b9a0c6922c86cd54c1300ab45209d8e2db13df.tar.gz gnuradio-f7b9a0c6922c86cd54c1300ab45209d8e2db13df.tar.bz2 gnuradio-f7b9a0c6922c86cd54c1300ab45209d8e2db13df.zip |
Merge branch '8psk' into next
Conflicts:
gr-msdd6000/src/Makefile.swig.gen
Diffstat (limited to 'gr-digital/lib/digital_constellation_decoder_cb.cc')
-rw-r--r-- | gr-digital/lib/digital_constellation_decoder_cb.cc | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/gr-digital/lib/digital_constellation_decoder_cb.cc b/gr-digital/lib/digital_constellation_decoder_cb.cc new file mode 100644 index 000000000..4638790f6 --- /dev/null +++ b/gr-digital/lib/digital_constellation_decoder_cb.cc @@ -0,0 +1,77 @@ +/* -*- c++ -*- */ +/* + * Copyright 2011 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 <digital_constellation_decoder_cb.h> +#include <digital_constellation.h> +#include <gr_io_signature.h> +#include <iostream> + +digital_constellation_decoder_cb_sptr +digital_make_constellation_decoder_cb (digital_constellation_sptr constellation) +{ + return gnuradio::get_initial_sptr + (new digital_constellation_decoder_cb(constellation)); +} + +digital_constellation_decoder_cb:: +digital_constellation_decoder_cb (digital_constellation_sptr constellation) + : gr_block ("constellation_decoder_cb", + gr_make_io_signature (1, 1, sizeof (gr_complex)), + gr_make_io_signature (1, 1, sizeof (unsigned char))), + d_constellation(constellation), + d_dim(constellation->dimensionality()) +{ + set_relative_rate (1.0 / ((double) d_dim)); +} + +void +digital_constellation_decoder_cb::forecast (int noutput_items, + gr_vector_int &ninput_items_required) +{ + unsigned int input_required = noutput_items * d_dim; + + unsigned ninputs = ninput_items_required.size(); + for (unsigned int i = 0; i < ninputs; i++) + ninput_items_required[i] = input_required; +} + + +int +digital_constellation_decoder_cb::general_work (int noutput_items, + gr_vector_int &ninput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) +{ + gr_complex const *in = (const gr_complex *) input_items[0]; + unsigned char *out = (unsigned char *) output_items[0]; + + for(int i = 0; i < noutput_items; i++){ + out[i] = d_constellation->decision_maker(&(in[i*d_dim])); + } + + consume_each (noutput_items * d_dim); + return noutput_items; +} |