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/*
    Copyright (C) 2015 Carl Hetherington <cth@carlh.net>

    This file is part of DCP-o-matic.

    DCP-o-matic 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 2 of the License, or
    (at your option) any later version.

    DCP-o-matic 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 DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.

*/

#include <boost/shared_ptr.hpp>

class AudioBuffers;

/** @class AudioDelay
 *  @brief An audio delay line.
 */
class AudioDelay
{
public:
	explicit AudioDelay (int samples);
	boost::shared_ptr<AudioBuffers> run (boost::shared_ptr<const AudioBuffers> in);
	void flush ();

private:
	boost::shared_ptr<AudioBuffers> _tail;
	int _samples;
};