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-rw-r--r--gr-blocks/include/blocks/throttle.h63
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diff --git a/gr-blocks/include/blocks/throttle.h b/gr-blocks/include/blocks/throttle.h
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-/* -*- c++ -*- */
-/*
- * Copyright 2005-2011,2013 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_THROTTLE_H
-#define INCLUDED_GR_THROTTLE_H
-
-#include <blocks/api.h>
-#include <gr_sync_block.h>
-
-namespace gr {
- namespace blocks {
-
- /*!
- * \brief throttle flow of samples such that the average rate does
- * not exceed samples_per_sec.
- * \ingroup misc_blk
- *
- * \details
- * input: one stream of itemsize; output: one stream of itemsize
- *
- * N.B. this should only be used in GUI apps where there is no
- * other rate limiting block. It is not intended nor effective at
- * precisely controlling the rate of samples. That should be
- * controlled by a source or sink tied to sample clock. E.g., a
- * USRP or audio card.
- */
- class BLOCKS_API throttle : virtual public gr_sync_block
- {
- public:
- typedef boost::shared_ptr<throttle> sptr;
-
- static sptr make(size_t itemsize, double samples_per_sec);
-
- //! Sets the sample rate in samples per second.
- virtual void set_sample_rate(double rate) = 0;
-
- //! Get the sample rate in samples per second.
- virtual double sample_rate() const = 0;
- };
-
- } /* namespace blocks */
-} /* namespace gr */
-
-#endif /* INCLUDED_GR_THROTTLE_H */