1 files changed, 73 insertions, 0 deletions
diff --git a/gr-atsc/lib/atsc_ds_to_softds.cc b/gr-atsc/lib/atsc_ds_to_softds.cc
new file mode 100644
index 0000000000..06ea9686c0
--- /dev/null
+++ b/gr-atsc/lib/atsc_ds_to_softds.cc
@@ -0,0 +1,73 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2006,2010 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 <atsc/ds_to_softds.h>
+#include <gr_io_signature.h>
+#include <atsc/consts.h>
+
+
+atsc_ds_to_softds_sptr
+atsc_make_ds_to_softds()
+{
+  return gnuradio::get_initial_sptr(new atsc_ds_to_softds());
+}
+
+atsc_ds_to_softds::atsc_ds_to_softds()
+  : gr_sync_block("atsc_ds_to_softds",
+		  gr_make_io_signature(1, 1, sizeof(atsc_data_segment)),
+		  gr_make_io_signature(1, 1, sizeof(atsc_soft_data_segment)))
+{
+  reset();
+}
+
+#define NELEM(x) (sizeof (x) / sizeof (x[0]))
+
+void
+atsc_ds_to_softds::map_to_soft_symbols (atsc_soft_data_segment &out,
+                     const atsc_data_segment &in)
+{
+  for (unsigned int i = 0; i < NELEM (in.data); i++){
+    out.data[i] = in.data[i] * 2 - 7;
+  }
+}
+
+
+int
+atsc_ds_to_softds::work (int noutput_items,
+		       gr_vector_const_void_star &input_items,
+		       gr_vector_void_star &output_items)
+{
+  const atsc_data_segment *in = (const atsc_data_segment *) input_items[0];
+  atsc_soft_data_segment *out = (atsc_soft_data_segment *) output_items[0];
+
+  for (int i = 0; i < noutput_items; i++){
+
+    out[i].pli = in[i].pli;			// copy pipeline info...
+    map_to_soft_symbols(out[i], in[i]);
+  }
+
+  return noutput_items;
+}