GNU Radio Manual and C++ API Reference 3.8.5.0
The Free & Open Software Radio Ecosystem
 
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freedv_rx_ss.h
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1/* -*- c++ -*- */
2/*
3 * Copyright 2016-2019 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 INCLUDED_VOCODER_FREEDV_RX_H
24#define INCLUDED_VOCODER_FREEDV_RX_H
25
26#include <gnuradio/block.h>
29
30namespace gr {
31namespace vocoder {
32
33/*!
34 * \brief FreeDV demodulator
35 * \ingroup audio_blk
36 *
37 * Input: 16-bit short values of an audio signal with sampling rate 8 kHz.
38 *
39 * Output: 16-bit short values of an audio signal with sampling rate 8 kHz.
40 *
41 * See also gr::vocoder::freedv_tx_ss.
42 */
43class VOCODER_API freedv_rx_ss : virtual public gr::block
44{
45public:
46 typedef boost::shared_ptr<freedv_rx_ss> sptr;
47
48 /*!
49 * \brief Make FreeDV modem demodulator block.
50 *
51 * \param mode Operating Mode designation
52 * \param squelch_thresh FreeDV modem squelch threshold value
53 * \param interleave_frames FreeDV 700D mode number of frames to average error
54 */
55 static sptr make(int mode = freedv_api::MODE_1600,
56 float squelch_thresh = -100.0,
57 int interleave_frames = 1);
58
59 virtual void set_squelch_thresh(float squelch_thresh) = 0;
60 virtual float squelch_thresh() = 0;
61 virtual void set_squelch_en(bool squelch_enable) = 0;
62};
63
64} /* namespace vocoder */
65} /* namespace gr */
66
67#endif /* INCLUDED_VOCODER_FREEDV_RX_H */
The abstract base class for all 'terminal' processing blocks.
Definition block.h:72
FreeDV demodulator.
Definition freedv_rx_ss.h:44
virtual void set_squelch_en(bool squelch_enable)=0
boost::shared_ptr< freedv_rx_ss > sptr
Definition freedv_rx_ss.h:46
static sptr make(int mode=freedv_api::MODE_1600, float squelch_thresh=-100.0, int interleave_frames=1)
Make FreeDV modem demodulator block.
virtual float squelch_thresh()=0
virtual void set_squelch_thresh(float squelch_thresh)=0
#define VOCODER_API
Definition gr-vocoder/include/gnuradio/vocoder/api.h:30
GNU Radio logging wrapper for log4cpp library (C++ port of log4j)
Definition basic_block.h:46