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/*
Copyright (C) 2019 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/>.
*/
#ifndef DCPOMATIC_VIDEO_VIEW_H
#define DCPOMATIC_VIDEO_VIEW_H
#include "lib/dcpomatic_time.h"
#include <boost/shared_ptr.hpp>
#include <boost/signals2.hpp>
#include <boost/thread.hpp>
class Image;
class wxWindow;
class FilmViewer;
class PlayerVideo;
class VideoView
{
public:
VideoView (FilmViewer* viewer)
: _viewer (viewer)
#ifdef DCPOMATIC_VARIANT_SWAROOP
, _in_watermark (false)
#endif
, _video_frame_rate (0)
{}
virtual ~VideoView () {}
virtual void set_image (boost::shared_ptr<const Image> image) = 0;
virtual wxWindow* get () const = 0;
/** Redraw the view after something has changed like content outlining,
* the film being removed, etc.
*/
virtual void update () = 0;
/* XXX_b: make pure */
virtual void start () {}
/* XXX_b: make pure */
virtual void stop () {}
void clear ();
boost::signals2::signal<void()> Sized;
virtual bool display_next_frame (bool) = 0;
/* XXX_b: to remove */
virtual void display_player_video () {}
dcpomatic::DCPTime position () const {
boost::mutex::scoped_lock lm (_mutex);
return _player_video.second;
}
void set_video_frame_rate (int r) {
boost::mutex::scoped_lock lm (_mutex);
_video_frame_rate = r;
}
void set_length (dcpomatic::DCPTime len) {
boost::mutex::scoped_lock lm (_mutex);
_length = len;
}
protected:
/* XXX_b: to remove */
friend class FilmViewer;
bool get_next_frame (bool non_blocking);
int time_until_next_frame () const;
dcpomatic::DCPTime one_video_frame () const;
int video_frame_rate () const {
boost::mutex::scoped_lock lm (_mutex);
return _video_frame_rate;
}
dcpomatic::DCPTime length () const {
boost::mutex::scoped_lock lm (_mutex);
return _length;
}
std::pair<boost::shared_ptr<PlayerVideo>, dcpomatic::DCPTime> player_video () const {
boost::mutex::scoped_lock lm (_mutex);
return _player_video;
}
FilmViewer* _viewer;
#ifdef DCPOMATIC_VARIANT_SWAROOP
bool _in_watermark;
int _watermark_x;
int _watermark_y;
#endif
private:
/** Mutex protecting all the state in VideoView */
mutable boost::mutex _mutex;
std::pair<boost::shared_ptr<PlayerVideo>, dcpomatic::DCPTime> _player_video;
int _video_frame_rate;
/** length of the film we are playing, or 0 if there is none */
dcpomatic::DCPTime _length;
};
#endif
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