/*
    Copyright (C) 2026 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 "packet_queue.h"
#include <boost/optional.hpp>


class PassthroughPacketQueue : public PacketQueue
{
public:
	void add(AVPacket* packet, Type type) override;

	/** Get the next packet to process.
	 *  @param flushing should be true if we are flushing at the end of a decode.
	 *  When this is true the queue will be emptied without trying to re-order it.
	 *  Returns { nullptr, VIDEO } when there are no more packets to get.
	 */
	boost::optional<std::pair<Packet, Type>> get(bool flushing) override;

	/** Clear the queue.  Packets will be freed. */
	void clear() override;

private:
	boost::optional<std::pair<Packet, Type>> _store;
};