Merge branch 'dfsg-orig'

[debian/gnuradio] / gr-atsc / src / lib / GrAtscFieldSyncDemux.h

diff --git a/gr-atsc/src/lib/GrAtscFieldSyncDemux.h b/gr-atsc/src/lib/GrAtscFieldSyncDemux.h
new file mode 100644 (file)
index 0000000..5796aa2
--- /dev/null
+++ b/gr-atsc/src/lib/GrAtscFieldSyncDemux.h
@@ -0,0 +1,60 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2002 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 _GRATSCFIELDSYNCDEMUX_H_
+#define _GRATSCFIELDSYNCDEMUX_H_
+
+#include <VrDecimatingSigProc.h>
+#include <atsc_types.h>
+
+/*!
+ * \brief ATSC Field Sync Demux
+ *
+ * This class accepts 1 stream of floats (data), and 1 stream of tags (syminfo).
+ * It outputs one stream of atsc_soft_data_segment packets
+ */
+
+class GrAtscFieldSyncDemux : public VrDecimatingSigProc<float,atsc_soft_data_segment> {
+
+ public:
+
+  GrAtscFieldSyncDemux ();
+  virtual ~GrAtscFieldSyncDemux ();
+
+  virtual const char *name () { return "GrAtscFieldSyncDemux"; }
+
+  virtual int forecast (VrSampleRange output,
+                       VrSampleRange inputs[]);
+
+  virtual int work (VrSampleRange output, void *o[],
+                   VrSampleRange inputs[], void *i[]);
+
+ protected:
+
+  bool           d_locked;
+  bool           d_in_field2;
+  int            d_segment_number;
+  VrSampleIndex          d_next_input;
+  VrSampleIndex          d_lost_index;         // diagnostic fluff
+};
+
+#endif // _GRATSCFIELDSYNCDEMUX_H_