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/* -*- c++ -*- */
/*
* Copyright 2004,2008,2012-2013,2018 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 VECTOR_SOURCE_H
#define VECTOR_SOURCE_H
#include <gnuradio/blocks/api.h>
#include <gnuradio/sync_block.h>
#include <cstdint>
namespace gr {
namespace blocks {
/*!
* \brief Source that streams T items based on the input \p data vector.
* \ingroup misc_blk
*
* \details
* This block produces a stream of samples based on an input
* vector. In C++, this is a std::vector<T>, and in Python,
* this is either a list or tuple. The data can repeat infinitely
* until the flowgraph is terminated by some other event or, the
* default, run the data once and stop.
*
* The vector source can also produce stream tags with the
* data. Pass in a vector of gr::tag_t objects and they will be
* emitted based on the specified offset of the tag.
*
* GNU Radio provides a utility Python module in gr.tag_utils to
* convert between tags and Python objects:
* gr.tag_utils.python_to_tag.
*
* We can create tags as Python lists (or tuples) using the list
* structure [int offset, pmt key, pmt value, pmt srcid]. It is
* important to define the list/tuple with the values in the
* correct order and with the correct data type. A python
* dictionary can also be used using the keys: "offset", "key",
* "value", and "srcid" with the same data types as for the lists.
*
* When given a list of tags, the vector source will emit the tags
* repeatedly by updating the offset relative to the vector stream
* length. That is, if the vector has 500 items and a tag has an
* offset of 0, that tag will be placed on item 0, 500, 1000,
* 1500, etc.
*/
template<class T>
class BLOCKS_API vector_source : virtual public sync_block
{
public:
// gr::blocks::vector_source::sptr
typedef boost::shared_ptr< vector_source<T> > sptr;
static sptr make(const std::vector<T> &data,
bool repeat=false, unsigned int vlen=1,
const std::vector<tag_t> &tags=std::vector<tag_t>());
virtual void rewind() = 0;
virtual void set_data(const std::vector<T> &data,
const std::vector<tag_t> &tags=std::vector<tag_t>()) = 0;
virtual void set_repeat(bool repeat) = 0;
};
typedef vector_source<std::uint8_t> vector_source_b;
typedef vector_source<std::int16_t> vector_source_s;
typedef vector_source<std::int32_t> vector_source_i;
typedef vector_source<float> vector_source_f;
typedef vector_source<gr_complex> vector_source_c;
} /* namespace blocks */
} /* namespace gr */
#endif /* VECTOR_SOURCE_H */
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