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/*
Copyright (C) 2024 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_ENCODER_H
#define DCPOMATIC_VIDEO_ENCODER_H
#include "dcpomatic_time.h"
#include "event_history.h"
#include "film.h"
#include "player_video.h"
class Writer;
class VideoEncoder
{
public:
VideoEncoder(std::shared_ptr<const Film> film, Writer& writer);
virtual ~VideoEncoder() {}
VideoEncoder(VideoEncoder const&) = delete;
VideoEncoder& operator=(VideoEncoder const&) = delete;
/** Called to indicate that a processing run is about to begin */
virtual void begin() {}
/** Called to pass a bit of video to be encoded as the next DCP frame */
virtual void encode(std::shared_ptr<PlayerVideo> pv, dcpomatic::DCPTime time) = 0;
virtual void pause() = 0;
virtual void resume() = 0;
/** Called when a processing run has finished */
virtual void end() = 0;
int video_frames_encoded() const;
boost::optional<float> current_encoding_rate() const;
protected:
/** Film that we are encoding */
std::shared_ptr<const Film> _film;
Writer& _writer;
EventHistory _history;
};
#endif
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