Imported Upstream version 3.2.2

[debian/gnuradio] / gnuradio-core / src / lib / gengen / gr_moving_average_ff.h

diff --git a/gnuradio-core/src/lib/gengen/gr_moving_average_ff.h b/gnuradio-core/src/lib/gengen/gr_moving_average_ff.h
new file mode 100644 (file)
index 0000000..404fd14
--- /dev/null
+++ b/gnuradio-core/src/lib/gengen/gr_moving_average_ff.h
@@ -0,0 +1,71 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2008 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.
+ */
+
+// WARNING: this file is machine generated.  Edits will be over written
+
+#ifndef INCLUDED_GR_MOVING_AVERAGE_FF_H
+#define INCLUDED_GR_MOVING_AVERAGE_FF_H
+
+#include <gr_sync_block.h>
+
+class gr_moving_average_ff;
+
+typedef boost::shared_ptr<gr_moving_average_ff> gr_moving_average_ff_sptr;
+
+gr_moving_average_ff_sptr gr_make_moving_average_ff (int length, float scale, int max_iter = 4096);
+
+/*!
+ * \brief output is the moving sum of the last N samples, scaled by the scale factor
+ * \ingroup filter_blk
+ *
+ * max_iter limits how long we go without flushing the accumulator
+ * This is necessary to avoid numerical instability for float and complex.
+ */
+class gr_moving_average_ff : public gr_sync_block
+{
+private:
+  friend gr_moving_average_ff_sptr gr_make_moving_average_ff(int length, float scale, int max_iter);
+
+  gr_moving_average_ff (int length, float scale, int max_iter = 4096);
+
+  int d_length;
+  float d_scale;
+  int d_max_iter;
+
+  int d_new_length;
+  float d_new_scale;
+  bool d_updated;
+
+public:
+  ~gr_moving_average_ff ();    
+
+  int work (int noutput_items,
+           gr_vector_const_void_star &input_items,
+           gr_vector_void_star &output_items);
+
+  int length() const { return d_new_length; }
+  float scale() const { return d_new_scale; }
+
+  void set_length_and_scale(int length, float scale);
+};
+
+#endif /* INCLUDED_GR_MOVING_AVERAGE_FF_H */