2 Copyright (C) 2012-2016 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.
45 VideoDecoder (Decoder* parent, boost::shared_ptr<const Content> c, boost::shared_ptr<Log> log);
47 std::list<ContentVideo> get_video (Frame frame, bool accurate);
49 void set_ignore_video ();
50 bool ignore_video () const {
54 #ifdef DCPOMATIC_DEBUG
58 friend struct video_decoder_fill_test1;
59 friend struct video_decoder_fill_test2;
60 friend struct ffmpeg_pts_offset_test;
61 friend void ffmpeg_decoder_sequential_test_one (boost::filesystem::path file, float fps, int gaps, int video_length);
63 void seek (ContentTime time, bool accurate);
64 void video (boost::shared_ptr<const ImageProxy>, Frame frame);
68 std::list<ContentVideo> decoded_video (Frame frame);
69 void fill_one_eye (Frame from, Frame to, Eyes);
70 void fill_both_eyes (Frame from, Frame to, Eyes);
73 boost::shared_ptr<const Content> _video_content;
74 boost::shared_ptr<Log> _log;
75 std::list<ContentVideo> _decoded_video;
76 boost::shared_ptr<Image> _black_image;
77 boost::optional<ContentTime> _last_seek_time;
78 bool _last_seek_accurate;
79 /** true if this decoder should ignore all video; i.e. never produce any */
81 /** if set, this is a frame for which we got no data because the Decoder said
82 * it has no more to give.
84 boost::optional<Frame> _no_data_frame;