burst_tagger.h

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/* -*- c++ -*- */
/*
 * Copyright 2010,2013 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 INCLUDED_GR_BURST_TAGGER_H
#define INCLUDED_GR_BURST_TAGGER_H
 
#include <gnuradio/blocks/api.h>
#include <gnuradio/sync_block.h>
 
namespace gr {
namespace blocks {
 
/*!
 * \brief Sets a burst on/off tag based on the value of the trigger input.
 * \ingroup peak_detectors_blk
 * \ingroup stream_tag_tools_blk
 *
 * \details
 * This block takes two inputs, a signal stream on the input
 * stream 0 and a trigger stream of shorts on input stream 1. If
 * the trigger stream goes above 0, a tag with the key "burst"
 * will be transmitted as a pmt::PMT_T. When the trigger signal
 * falls below 0, the "burst" tag will be transmitted as
 * pmt::PMT_F.
 *
 * The signal on stream 0 is retransmitted to output stream 0.
 */
class BLOCKS_API burst_tagger : virtual public sync_block
{
public:
    // gr::blocks::burst_tagger::sptr
    typedef boost::shared_ptr<burst_tagger> sptr;
 
    /*!
     * Build a burst tagger gnuradio/blocks.
     *
     * \param itemsize itemsize of the signal stream on input 0.
     */
    static sptr make(size_t itemsize);
 
    /*!
     * For the true burst tag, change the key name to \p key and a
     * new value of \p value.
     */
    virtual void set_true_tag(const std::string& key, bool value) = 0;
 
    /*!
     * For the false burst tag, change the key name to \p key and a
     * new value of \p value.
     */
    virtual void set_false_tag(const std::string& key, bool value) = 0;
};
 
} /* namespace blocks */
} /* namespace gr */
 
#endif /* INCLUDED_GR_BURST_TAGGER_H */