2 Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 /** @file src/lib/video_decoder.h
21 * @brief VideoDecoder class.
24 #ifndef DCPOMATIC_VIDEO_DECODER_H
25 #define DCPOMATIC_VIDEO_DECODER_H
28 #include "video_content.h"
30 #include "content_video.h"
31 #include <boost/signals2.hpp>
32 #include <boost/shared_ptr.hpp>
39 /** @class VideoDecoder
40 * @brief Parent for classes which decode video.
42 class VideoDecoder : public virtual Decoder
45 VideoDecoder (boost::shared_ptr<const VideoContent> c, boost::shared_ptr<Log> log);
47 std::list<ContentVideo> get_video (Frame frame, bool accurate);
49 boost::shared_ptr<const VideoContent> video_content () const {
50 return _video_content;
53 void set_ignore_video ();
55 #ifdef DCPOMATIC_DEBUG
60 friend struct video_decoder_fill_test1;
61 friend struct video_decoder_fill_test2;
63 void seek (ContentTime time, bool accurate);
64 void video (boost::shared_ptr<const ImageProxy>, Frame frame);
65 std::list<ContentVideo> decoded_video (Frame frame);
66 void fill_one_eye (Frame from, Frame to, Eyes);
67 void fill_both_eyes (Frame from, Frame to, Eyes);
69 boost::shared_ptr<const VideoContent> _video_content;
70 boost::shared_ptr<Log> _log;
71 std::list<ContentVideo> _decoded_video;
72 boost::shared_ptr<Image> _black_image;
73 boost::optional<ContentTime> _last_seek_time;
74 bool _last_seek_accurate;
75 /** true if this decoder should ignore all video; i.e. never produce any */
77 /** if set, this is a frame for which we got no data because the Decoder said
78 * it has no more to give.
80 boost::optional<Frame> _no_data_frame;