/*
- Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2013-2014 Carl Hetherington <cth@carlh.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
*/
-#ifndef DVDOMATIC_PLAYER_H
-#define DVDOMATIC_PLAYER_H
+#ifndef DCPOMATIC_PLAYER_H
+#define DCPOMATIC_PLAYER_H
+#include <list>
#include <boost/shared_ptr.hpp>
-#include <boost/thread.hpp>
-#include <boost/thread/mutex.hpp>
+#include <boost/enable_shared_from_this.hpp>
+#include "playlist.h"
+#include "content.h"
+#include "film.h"
+#include "rect.h"
+#include "audio_content.h"
+#include "dcpomatic_time.h"
+#include "content_subtitle.h"
+#include "position_image.h"
-class FilmState;
-class Screen;
+class Job;
+class Film;
+class Playlist;
+class AudioContent;
+class Piece;
+class Image;
+class DCPVideo;
+class Decoder;
-class Player
+class PlayerStatistics
{
public:
- enum Split {
- SPLIT_NONE,
- SPLIT_LEFT,
- SPLIT_RIGHT
- };
+ struct Video {
+ Video ()
+ : black (0)
+ , repeat (0)
+ , good (0)
+ , skip (0)
+ {}
- Player (boost::shared_ptr<const FilmState>, boost::shared_ptr<const Screen>, Split);
- ~Player ();
+ int black;
+ int repeat;
+ int good;
+ int skip;
+ } video;
- void command (std::string);
+ struct Audio {
+ Audio ()
+ : silence (0)
+ , good (0)
+ , skip (0)
+ {}
+
+ DCPTime silence;
+ int64_t good;
+ int64_t skip;
+ } audio;
- float position () const;
- bool paused () const;
-
- pid_t mplayer_pid () const {
- return _mplayer_pid;
+ void dump (boost::shared_ptr<Log>) const;
+};
+
+class Piece
+{
+public:
+ Piece (boost::shared_ptr<Content> c, boost::shared_ptr<Decoder> d, FrameRateChange f)
+ : content (c)
+ , decoder (d)
+ , frc (f)
+ {}
+
+ boost::shared_ptr<Content> content;
+ boost::shared_ptr<Decoder> decoder;
+ FrameRateChange frc;
+};
+
+/** @class Player
+ * @brief A class which can `play' a Playlist.
+ */
+class Player : public boost::enable_shared_from_this<Player>, public boost::noncopyable
+{
+public:
+ Player (boost::shared_ptr<const Film>, boost::shared_ptr<const Playlist>);
+
+ boost::shared_ptr<DCPVideo> get_video (DCPTime time, bool accurate);
+ boost::shared_ptr<AudioBuffers> get_audio (DCPTime time, DCPTime length, bool accurate);
+
+ void set_video_container_size (dcp::Size);
+ void set_approximate_size ();
+ void set_burn_subtitles (bool burn) {
+ _burn_subtitles = burn;
}
+ PlayerStatistics const & statistics () const;
+
+ /** Emitted when something has changed such that if we went back and emitted
+ * the last frame again it would look different. This is not emitted after
+ * a seek.
+ *
+ * The parameter is true if these signals are currently likely to be frequent.
+ */
+ boost::signals2::signal<void (bool)> Changed;
+
private:
- void stdout_reader ();
- void set_position (float);
- void set_paused (bool);
+ friend class PlayerWrapper;
+ friend class Piece;
+
+ void setup_pieces ();
+ void playlist_changed ();
+ void content_changed (boost::weak_ptr<Content>, int, bool);
+ void flush ();
+ void film_changed (Film::Property);
+ std::list<PositionImage> process_content_image_subtitles (
+ boost::shared_ptr<SubtitleContent>, std::list<boost::shared_ptr<ContentImageSubtitle> >
+ );
+ std::list<PositionImage> process_content_text_subtitles (std::list<boost::shared_ptr<ContentTextSubtitle> >);
+ void update_subtitle_from_text ();
+ VideoFrame dcp_to_content_video (boost::shared_ptr<const Piece> piece, DCPTime t) const;
+ AudioFrame dcp_to_content_audio (boost::shared_ptr<const Piece> piece, DCPTime t) const;
+ ContentTime dcp_to_content_subtitle (boost::shared_ptr<const Piece> piece, DCPTime t) const;
+
+ template<class C>
+ std::list<boost::shared_ptr<Piece> >
+ overlaps (DCPTime t)
+ {
+ std::list<boost::shared_ptr<Piece> > overlaps;
+ for (typename std::list<boost::shared_ptr<Piece> >::const_iterator i = _pieces.begin(); i != _pieces.end(); ++i) {
+ if (boost::dynamic_pointer_cast<C> ((*i)->content) && (*i)->content->position() <= t && t < (*i)->content->end()) {
+ overlaps.push_back (*i);
+ }
+ }
+
+ return overlaps;
+ }
- int _mplayer_stdin[2];
- int _mplayer_stdout[2];
- int _mplayer_stderr[2];
- pid_t _mplayer_pid;
-
- boost::thread* _stdout_reader;
- /* XXX: should probably be atomically accessed */
- bool _stdout_reader_should_run;
-
- mutable boost::mutex _state_mutex;
- float _position;
- bool _paused;
+ boost::shared_ptr<const Film> _film;
+ boost::shared_ptr<const Playlist> _playlist;
+
+ /** Our pieces are ready to go; if this is false the pieces must be (re-)created before they are used */
+ bool _have_valid_pieces;
+ std::list<boost::shared_ptr<Piece> > _pieces;
+
+ dcp::Size _video_container_size;
+ boost::shared_ptr<Image> _black_image;
+
+ bool _approximate_size;
+ bool _burn_subtitles;
+
+ PlayerStatistics _statistics;
+
+ boost::signals2::scoped_connection _playlist_changed_connection;
+ boost::signals2::scoped_connection _playlist_content_changed_connection;
+ boost::signals2::scoped_connection _film_changed_connection;
};
#endif
projects / dcpomatic.git / blobdiff