2 Copyright (C) 2024 Carl Hetherington <cth@carlh.net>
4 This file is part of DCP-o-matic.
6 DCP-o-matic is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 DCP-o-matic is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
22 #ifndef DCPOMATIC_VIDEO_ENCODER_H
23 #define DCPOMATIC_VIDEO_ENCODER_H
26 #include "dcpomatic_time.h"
27 #include "event_history.h"
29 #include "player_video.h"
38 VideoEncoder(std::shared_ptr<const Film> film, Writer& writer);
39 virtual ~VideoEncoder() {}
41 VideoEncoder(VideoEncoder const&) = delete;
42 VideoEncoder& operator=(VideoEncoder const&) = delete;
44 /** Called to indicate that a processing run is about to begin */
45 virtual void begin() {}
47 /** Called to pass a bit of video to be encoded as the next DCP frame */
48 virtual void encode(std::shared_ptr<PlayerVideo> pv, dcpomatic::DCPTime time);
50 virtual void pause() = 0;
51 virtual void resume() = 0;
53 /** Called when a processing run has finished */
54 virtual void end() = 0;
56 int video_frames_enqueued() const;
57 boost::optional<float> current_encoding_rate() const;
60 /** Film that we are encoding */
61 std::shared_ptr<const Film> _film;
63 EventHistory _history;
64 boost::optional<dcpomatic::DCPTime> _last_player_video_time;