2 Copyright (C) 2012-2016 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/>.
21 /** @file src/lib/video_decoder.h
22 * @brief VideoDecoder class.
25 #ifndef DCPOMATIC_VIDEO_DECODER_H
26 #define DCPOMATIC_VIDEO_DECODER_H
29 #include "video_content.h"
31 #include "content_video.h"
32 #include <boost/signals2.hpp>
33 #include <boost/shared_ptr.hpp>
40 /** @class VideoDecoder
41 * @brief Parent for classes which decode video.
46 VideoDecoder (Decoder* parent, boost::shared_ptr<const Content> c, boost::shared_ptr<Log> log);
48 std::list<ContentVideo> get (Frame frame, bool accurate);
51 bool ignore () const {
55 #ifdef DCPOMATIC_DEBUG
59 friend struct video_decoder_fill_test1;
60 friend struct video_decoder_fill_test2;
61 friend struct ffmpeg_pts_offset_test;
62 friend void ffmpeg_decoder_sequential_test_one (boost::filesystem::path file, float fps, int gaps, int video_length);
64 void seek (ContentTime time, bool accurate);
65 void give (boost::shared_ptr<const ImageProxy>, Frame frame);
69 std::list<ContentVideo> decoded (Frame frame);
70 void fill_one_eye (Frame from, Frame to, Eyes);
71 void fill_both_eyes (VideoFrame from, VideoFrame to);
74 boost::shared_ptr<const Content> _content;
75 boost::shared_ptr<Log> _log;
76 std::list<ContentVideo> _decoded;
77 boost::shared_ptr<Image> _black_image;
78 boost::optional<ContentTime> _last_seek_time;
79 bool _last_seek_accurate;
80 /** true if this decoder should ignore all video; i.e. never produce any */
82 /** if set, this is a frame for which we got no data because the Decoder said
83 * it has no more to give.
85 boost::optional<Frame> _no_data_frame;