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tag_share.h
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/* -*- c++ -*- */
/*
* Copyright 2017 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#ifndef INCLUDED_BLOCKS_TAG_SHARE_H
#define INCLUDED_BLOCKS_TAG_SHARE_H
#include <gnuradio/blocks/api.h>
#include <gnuradio/sync_block.h>
namespace gr {
namespace blocks {
/*!
* \brief Adds tags from Input 1 onto Input 0's stream.
* \ingroup blocks
*
* \details
* This block utilizes the GNU Radio runtime's tag propagation policy
* to transfer or share Input 1's tags to Input 0's stream. This is
* useful when a signal is detected via a correlate_access_code_bb or
* a threshold crossing from a complex_to_mag_squared block. The tag from
* that detection is on the alternate stream, either bytes or floats.
* Often there is further signal processing that should be done on the
* complex stream. This block allows the detection tags to be added to
* the complex stream to trigger downstream processing without the need of
* redundant trigger inputs on all subsequent blocks.
*/
class BLOCKS_API tag_share : virtual public gr::sync_block
{
public:
typedef std::shared_ptr<tag_share> sptr;
/*!
* \param sizeof_io_item The size of the Input 0/Output 0 stream type. Input 0
* stream items will be directly copied to Output 0.
* \param sizeof_share_item The size of the Input 1 (tag share) stream type. This
* stream type does not have to match the input/output stream type. Tags from
* Input 1's items will be combined with Input 0's item tags and outputted on
* Output 0.
* \param vlen The vector size of the input and output stream items
*/
static sptr make(size_t sizeof_io_item, size_t sizeof_share_item, size_t vlen = 1);
};
} // namespace blocks
} // namespace gr
#endif /* INCLUDED_BLOCKS_TAG_SHARE_H */
gr::blocks::tag_share
Adds tags from Input 1 onto Input 0's stream.
Definition tag_share.h:36
gr::blocks::tag_share::sptr
std::shared_ptr< tag_share > sptr
Definition tag_share.h:38
gr::blocks::tag_share::make
static sptr make(size_t sizeof_io_item, size_t sizeof_share_item, size_t vlen=1)
gr::sync_block
synchronous 1:1 input to output with history
Definition sync_block.h:26
api.h
BLOCKS_API
#define BLOCKS_API
Definition gr-blocks/include/gnuradio/blocks/api.h:18
gr
GNU Radio logging wrapper.
Definition basic_block.h:29
sync_block.h