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/*
Copyright (C) 2016-2021 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/>.
*/
#ifndef DCPOMATIC_VIDEO_RING_BUFFERS_H
#define DCPOMATIC_VIDEO_RING_BUFFERS_H
#include "dcpomatic_time.h"
#include "player_video.h"
#include <boost/thread/mutex.hpp>
#include <utility>
class Film;
class PlayerVideo;
class VideoRingBuffers
{
public:
VideoRingBuffers() {}
VideoRingBuffers(VideoRingBuffers const&) = delete;
VideoRingBuffers& operator=(VideoRingBuffers const&) = delete;
void put(std::shared_ptr<PlayerVideo> frame, dcpomatic::DCPTime time);
std::pair<std::shared_ptr<PlayerVideo>, dcpomatic::DCPTime> get();
void clear();
Frame size() const;
bool empty() const;
void reset_metadata(std::shared_ptr<const Film> film, dcp::Size player_video_container_size);
std::pair<size_t, std::string> memory_used() const;
private:
mutable boost::mutex _mutex;
std::list<std::pair<std::shared_ptr<PlayerVideo>, dcpomatic::DCPTime>> _data;
};
#endif
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