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authorTom Rondeau2011-07-17 17:25:57 -0400
committerTom Rondeau2011-07-17 17:25:57 -0400
commitf7b9a0c6922c86cd54c1300ab45209d8e2db13df (patch)
tree5ede528cd302e85bc40edcad876525659f4e1ed2 /gr-digital/lib/digital_constellation_decoder_cb.cc
parentcaa4af889f54a696d3a533c77c5016df82f2987c (diff)
parent04409d2ba42ac5b372a7b6bb7e9c8de5722d76d7 (diff)
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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.cc77
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
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+/* -*- 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;
+}