From a54dc5bab6cc38513e9732be9f5c2670145b160f Mon Sep 17 00:00:00 2001
From: Tom Rondeau <trondeau@vt.edu>
Date: Sun, 24 Feb 2013 18:55:04 -0500
Subject: blocks: adding threshold, strech, and throttle to gr-blocks.
---
gr-blocks/lib/threshold_ff_impl.h | 57 +++++++++++++++++++++++++++++++++++++++
1 file changed, 57 insertions(+)
create mode 100644 gr-blocks/lib/threshold_ff_impl.h
(limited to 'gr-blocks/lib/threshold_ff_impl.h')
diff --git a/gr-blocks/lib/threshold_ff_impl.h b/gr-blocks/lib/threshold_ff_impl.h
new file mode 100644
index 0000000000..41afaa52aa
--- /dev/null
+++ b/gr-blocks/lib/threshold_ff_impl.h
@@ -0,0 +1,57 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2004,2013 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.
+ */
+
+#ifndef INCLUDED_GR_THRESHOLD_FF_IMPL_H
+#define INCLUDED_GR_THRESHOLD_FF_IMPL_H
+
+#include <blocks/threshold_ff.h>
+
+namespace gr {
+ namespace blocks {
+
+ class threshold_ff_impl : public threshold_ff
+ {
+ private:
+ float d_lo, d_hi; // the constant
+ float d_last_state;
+
+ public:
+ threshold_ff_impl(float lo, float hi,
+ float initial_state=0);
+ ~threshold_ff_impl();
+
+ float lo() const { return d_lo; }
+ void set_lo(float lo) { d_lo = lo; }
+ float hi() const { return d_hi; }
+ void set_hi(float hi) { d_hi = hi; }
+ float last_state() const { return d_last_state; }
+ void set_last_state(float last_state) { d_last_state = last_state; }
+
+ int work(int noutput_items,
+ gr_vector_const_void_star &input_items,
+ gr_vector_void_star &output_items);
+ };
+
+ } /* namespace blocks */
+} /* namespace gr */
+
+#endif /* INCLUDED_GR_THRESHOLD_FF_IMPL_H */
--
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