/usr/include/gnuradio/sync_interpolator.h is in gnuradio-dev 3.7.9.1-2ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 | /* -*- c++ -*- */
/*
* Copyright 2004,2008,2013 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_RUNTIME_SYNC_INTERPOLATOR_H
#define INCLUDED_GR_RUNTIME_SYNC_INTERPOLATOR_H
#include <gnuradio/api.h>
#include <gnuradio/sync_block.h>
namespace gr {
/*!
* \brief synchronous 1:N input to output with history
* \ingroup base_blk
*
* Override work to provide the signal processing implementation.
*/
class GR_RUNTIME_API sync_interpolator : public sync_block
{
private:
unsigned d_interpolation;
protected:
sync_interpolator(void) {} // allows pure virtual interface sub-classes
sync_interpolator(const std::string &name,
gr::io_signature::sptr input_signature,
gr::io_signature::sptr output_signature,
unsigned interpolation);
public:
unsigned interpolation() const { return d_interpolation; }
void set_interpolation(unsigned interpolation)
{
d_interpolation = interpolation;
set_relative_rate(1.0 * interpolation);
set_output_multiple(interpolation);
}
// gr::sync_interpolator overrides these to assist work
void forecast(int noutput_items,
gr_vector_int &ninput_items_required);
int general_work(int noutput_items,
gr_vector_int &ninput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items);
// derived classes should override work
int fixed_rate_ninput_to_noutput(int ninput);
int fixed_rate_noutput_to_ninput(int noutput);
};
} /* namespace gr */
#endif /* INCLUDED_GR_RUNTIME_SYNC_INTERPOLATOR_H */
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