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/* -*- c++ -*- */
/*
* Copyright 2010,2013 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "annotator_1to1_impl.h"
#include <gnuradio/io_signature.h>
#include <cstring>
#include <iomanip>
namespace gr {
namespace blocks {
annotator_1to1::sptr annotator_1to1::make(int when, size_t sizeof_stream_item)
{
return gnuradio::make_block_sptr<annotator_1to1_impl>(when, sizeof_stream_item);
}
annotator_1to1_impl::annotator_1to1_impl(int when, size_t sizeof_stream_item)
: sync_block("annotator_1to1",
io_signature::make(1, -1, sizeof_stream_item),
io_signature::make(1, -1, sizeof_stream_item)),
d_when((uint64_t)when)
{
set_tag_propagation_policy(TPP_ONE_TO_ONE);
d_tag_counter = 0;
set_relative_rate(1, 1);
}
annotator_1to1_impl::~annotator_1to1_impl() {}
int annotator_1to1_impl::work(int noutput_items,
gr_vector_const_void_star& input_items,
gr_vector_void_star& output_items)
{
const float* in = (const float*)input_items[0];
float* out = (float*)output_items[0];
std::stringstream str;
str << name() << unique_id();
uint64_t abs_N = 0;
int ninputs = input_items.size();
for (int i = 0; i < ninputs; i++) {
abs_N = nitems_read(i);
std::vector<tag_t> all_tags;
get_tags_in_range(all_tags, i, abs_N, abs_N + noutput_items);
d_stored_tags.insert(d_stored_tags.end(), all_tags.begin(), all_tags.end());
}
// Storing the current noutput_items as the value to the "noutput_items" key
pmt::pmt_t srcid = pmt::string_to_symbol(str.str());
pmt::pmt_t key = pmt::string_to_symbol("seq");
// Work does nothing to the data stream; just copy all inputs to outputs
// Adds a new tag when the number of items read is a multiple of d_when
abs_N = nitems_read(0);
int noutputs = output_items.size();
for (int j = 0; j < noutput_items; j++) {
// the min() is a hack to make sure this doesn't segfault if
// there are a different number of ins and outs. This is
// specifically designed to test the 1-to-1 propagation policy.
for (int i = 0; i < std::min(noutputs, ninputs); i++) {
if (abs_N % d_when == 0) {
pmt::pmt_t value = pmt::from_uint64(d_tag_counter++);
add_item_tag(i, abs_N, key, value, srcid);
}
in = (const float*)input_items[i];
out = (float*)output_items[i];
out[j] = in[j];
}
abs_N++;
}
return noutput_items;
}
} /* namespace blocks */
} /* namespace gr */
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