GNU Radio Manual and C++ API Reference  3.7.9.2
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GrAtscSegSymSync.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2002 Free Software Foundation, Inc.
4  *
5  * This file is part of GNU Radio
6  *
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 3, or (at your option)
10  * any later version.
11  *
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.
16  *
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.
21  */
22 
23 #ifndef _GRATSCSEGSYMSYNC_H_
24 #define _GRATSCSEGSYMSYNC_H_
25 
26 #include <VrDecimatingSigProc.h>
27 
28 /*!
29  * \brief ATSC SegSymSync
30  *
31  * Abstract class that establishes symbol timing and synchronizes
32  * with data segment boundaries.
33  *
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.
37  *
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.
41  */
42 
43 #include <atsci_syminfo.h>
44 
45 class GrAtscSegSymSync : public VrDecimatingSigProc<float,float> {
46 
47 public:
48 
51 
52  /*!
53  * \brief reset bit timing loop on channel change
54  */
55  virtual void reset () = 0;
56 
57  /*!
58  * \brief create an instance of GrAtscSegSymSync
59  */
60  static GrAtscSegSymSync *create (double nominal_ratio_of_rx_clock_to_symbol_freq);
61 
62 };
63 
64 #endif // _GRATSCSEGSYMSYNC_H_
virtual void reset()=0
reset bit timing loop on channel change
static GrAtscSegSymSync * create(double nominal_ratio_of_rx_clock_to_symbol_freq)
create an instance of GrAtscSegSymSync
ATSC SegSymSync.
Definition: GrAtscSegSymSync.h:45