X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=gr-atsc%2Fsrc%2Flib%2FGrAtscFieldSyncMux.h;fp=gr-atsc%2Fsrc%2Flib%2FGrAtscFieldSyncMux.h;h=66dd4494a80cbd67f72e01b86ca59b47d257116a;hb=8a9ddbb0675f9bfcc6e03b457fba6c79474a3693;hp=0000000000000000000000000000000000000000;hpb=82d471b9b4a8b389b5da44b19c69c36420828382;p=debian%2Fgnuradio

diff --git a/gr-atsc/src/lib/GrAtscFieldSyncMux.h b/gr-atsc/src/lib/GrAtscFieldSyncMux.h
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+++ b/gr-atsc/src/lib/GrAtscFieldSyncMux.h
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+/* -*- 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_ */