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/*
Copyright (C) 2012-2016 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/>.
*/
/** @file src/lib/video_decoder.h
* @brief VideoDecoder class.
*/
#ifndef DCPOMATIC_VIDEO_DECODER_H
#define DCPOMATIC_VIDEO_DECODER_H
#include "decoder.h"
#include "video_content.h"
#include "util.h"
#include "content_video.h"
#include <boost/signals2.hpp>
#include <boost/shared_ptr.hpp>
class VideoContent;
class ImageProxy;
class Image;
class Log;
/** @class VideoDecoder
* @brief Parent for classes which decode video.
*/
class VideoDecoder
{
public:
VideoDecoder (Decoder* parent, boost::shared_ptr<const Content> c, boost::shared_ptr<Log> log);
std::list<ContentVideo> get (Frame frame, bool accurate);
void set_ignore ();
bool ignore () const {
return _ignore;
}
#ifdef DCPOMATIC_DEBUG
int test_gaps;
#endif
friend struct video_decoder_fill_test1;
friend struct video_decoder_fill_test2;
friend struct ffmpeg_pts_offset_test;
friend void ffmpeg_decoder_sequential_test_one (boost::filesystem::path file, float fps, int gaps, int video_length);
void seek (ContentTime time, bool accurate);
void give (boost::shared_ptr<const ImageProxy>, Frame frame);
private:
std::list<ContentVideo> decoded (Frame frame);
void fill_one_eye (Frame from, Frame to, Eyes);
void fill_both_eyes (Frame from, Frame to, Eyes);
Decoder* _parent;
boost::shared_ptr<const Content> _content;
boost::shared_ptr<Log> _log;
std::list<ContentVideo> _decoded;
boost::shared_ptr<Image> _black_image;
boost::optional<ContentTime> _last_seek_time;
bool _last_seek_accurate;
/** true if this decoder should ignore all video; i.e. never produce any */
bool _ignore;
/** if set, this is a frame for which we got no data because the Decoder said
* it has no more to give.
*/
boost::optional<Frame> _no_data_frame;
};
#endif
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