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vector_source.h
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/* -*- c++ -*- */
/*
* Copyright 2004,2008,2012-2013,2018 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#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 std::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 */
gr::blocks::repeat
repeat each input repeat times
Definition repeat.h:30
gr::blocks::vector_source
Source that streams T items based on the input data vector.
Definition vector_source.h:56
gr::blocks::vector_source::make
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 >())
gr::blocks::vector_source::sptr
std::shared_ptr< vector_source< T > > sptr
Definition vector_source.h:59
gr::blocks::vector_source::set_repeat
virtual void set_repeat(bool repeat)=0
gr::blocks::vector_source::set_data
virtual void set_data(const std::vector< T > &data, const std::vector< tag_t > &tags=std::vector< tag_t >())=0
gr::blocks::vector_source::rewind
virtual void rewind()=0
gr::sync_block::sync_block
sync_block(void)
Definition sync_block.h:28
api.h
BLOCKS_API
#define BLOCKS_API
Definition gr-blocks/include/gnuradio/blocks/api.h:18
gr::blocks
Definition abs_blk.h:20
gr::blocks::vector_source_i
vector_source< std::int32_t > vector_source_i
Definition vector_source.h:74
gr::blocks::vector_source_s
vector_source< std::int16_t > vector_source_s
Definition vector_source.h:73
gr::blocks::vector_source_f
vector_source< float > vector_source_f
Definition vector_source.h:75
gr::blocks::vector_source_b
vector_source< std::uint8_t > vector_source_b
Definition vector_source.h:72
gr::blocks::vector_source_c
vector_source< gr_complex > vector_source_c
Definition vector_source.h:76
gr
GNU Radio logging wrapper.
Definition basic_block.h:29
sync_block.h