gr_repeat.h

这是用python语言写的一个数字广播的信号处理工具包。利用它

/* -*- c++ -*- */
/*
 * Copyright 2008 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_REPEAT_H
#define INCLUDED_GR_REPEAT_H

#include <gr_sync_interpolator.h>

class gr_repeat;

typedef boost::shared_ptr<gr_repeat> gr_repeat_sptr;

gr_repeat_sptr gr_make_repeat(size_t itemsize, int decim);

/*!
 * \brief Repeat a sample 'interp' times in output stream
 * \ingroup converter
 */

class gr_repeat : public gr_sync_interpolator
{
private:
  friend gr_repeat_sptr gr_make_repeat(size_t itemsize, int interp);
						     
  gr_repeat(size_t itemsize, int interp);

  int d_interp;
  int d_itemsize;

 public:
  ~gr_repeat();

  int work(int noutput_items,
	   gr_vector_const_void_star &input_items,
	   gr_vector_void_star &output_items);
};

#endif /* INCLUDED_GR_REPEAT_H */