Imported Upstream version 3.2.2

[debian/gnuradio] / gnuradio-core / src / lib / general / gr_regenerate_bb.cc

diff --git a/gnuradio-core/src/lib/general/gr_regenerate_bb.cc b/gnuradio-core/src/lib/general/gr_regenerate_bb.cc
new file mode 100644 (file)
index 0000000..1836755
--- /dev/null
+++ b/gnuradio-core/src/lib/general/gr_regenerate_bb.cc
@@ -0,0 +1,90 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2007 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 <gr_regenerate_bb.h>
+#include <gr_io_signature.h>
+
+gr_regenerate_bb_sptr
+gr_make_regenerate_bb (int period, unsigned int max_regen)
+{
+  return gr_regenerate_bb_sptr (new gr_regenerate_bb (period, max_regen));
+}
+
+gr_regenerate_bb::gr_regenerate_bb (int period, unsigned int max_regen)
+  : gr_sync_block ("regenerate_bb",
+                  gr_make_io_signature (1, 1, sizeof (char)),
+                  gr_make_io_signature (1, 1, sizeof (char))),
+    d_period(period),
+    d_countdown(0),
+    d_max_regen(max_regen),
+    d_regen_count(max_regen)
+{
+}
+
+void gr_regenerate_bb::set_max_regen(unsigned int regen)
+{
+  d_max_regen = regen;
+  d_countdown = 0;
+  d_regen_count = d_max_regen;
+}
+
+void gr_regenerate_bb::set_period(int period)
+{
+  d_period = period;
+  d_countdown = 0;
+  d_regen_count = d_max_regen;
+}
+
+int
+gr_regenerate_bb::work (int noutput_items,
+                       gr_vector_const_void_star &input_items,
+                       gr_vector_void_star &output_items)
+{
+  const char *iptr = (const char *) input_items[0];
+  char *optr = (char *) output_items[0];
+
+  for (int i = 0; i < noutput_items; i++){
+    optr[i] = 0;
+
+    if(d_regen_count < d_max_regen) {
+      d_countdown--;
+      
+      if(d_countdown == 0) {
+       optr[i] = 1;
+       d_countdown = d_period;
+       d_regen_count++;
+      }
+    }
+    
+    if(iptr[i] == 1) {
+      d_countdown = d_period;
+      optr[i] = 1;
+      d_regen_count = 0;
+    }
+
+  }
+  return noutput_items;
+}