1 files changed, 58 insertions, 0 deletions
diff --git a/gr-atsc/include/atsc/GrAtscFieldSyncMux.h b/gr-atsc/include/atsc/GrAtscFieldSyncMux.h
new file mode 100644
index 0000000000..3045f32846
--- /dev/null
+++ b/gr-atsc/include/atsc/GrAtscFieldSyncMux.h
@@ -0,0 +1,58 @@
+/* -*- 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 _GRATSCFIELDSYNCMUX_H_
+#define _GRATSCFIELDSYNCMUX_H_
+
+#include <VrHistoryProc.h>
+#include <atsc/types.h>
+
+/*!
+ * \brief Insert ATSC Field Syncs as required (atsc_data_segment --> atsc_data_segment)
+ */
+
+class GrAtscFieldSyncMux : public VrHistoryProc<atsc_data_segment, atsc_data_segment>
+{
+
+public:
+
+  GrAtscFieldSyncMux ();
+  ~GrAtscFieldSyncMux ();
+
+  const char *name () { return "GrAtscFieldSyncMux"; }
+
+  int work (VrSampleRange output, void *o[],
+	    VrSampleRange inputs[], void *i[]);
+
+  int forecast (VrSampleRange output, VrSampleRange inputs[]);
+
+  void pre_initialize ();
+
+  static const int	N_SAVED_SYMBOLS = 12;
+
+protected:
+  VrSampleIndex		d_current_index;
+  bool			d_already_output_field_sync;
+  unsigned char		d_saved_symbols[N_SAVED_SYMBOLS];
+};
+
+#endif /* _GRATSCFIELDSYNCMUX_H_ */