3 * Copyright 2002 Free Software Foundation, Inc.
5 * This file is part of GNU Radio
7 * GNU Radio is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2, or (at your option)
12 * GNU Radio is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with GNU Radio; see the file COPYING. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street,
20 * Boston, MA 02110-1301, USA.
23 #ifndef _GRATSCSEGSYMSYNC_H_
24 #define _GRATSCSEGSYMSYNC_H_
26 #include <VrDecimatingSigProc.h>
29 * \brief ATSC SegSymSync
31 * Abstract class that establishes symbol timing and synchronizes
32 * with data segment boundaries.
34 * Takes a single stream of floats as the input and
35 * produces two streams as output. The first stream is the data samples
36 * and is of type float. The second stream is the tags, and is of type syminfo.
38 * The current GNU Radio interface doesn't currently support different
39 * types on the input ports (or output ports for that matter), but
40 * since they are the same size, it works.
43 #include <atsci_syminfo.h>
45 class GrAtscSegSymSync : public VrDecimatingSigProc<float,float> {
53 * \brief reset bit timing loop on channel change
55 virtual void reset () = 0;
58 * \brief create an instance of GrAtscSegSymSync
60 static GrAtscSegSymSync *create (double nominal_ratio_of_rx_clock_to_symbol_freq);
64 #endif // _GRATSCSEGSYMSYNC_H_