/*
- Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2013-2015 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 "player_subtitles.h"
+#include "film.h"
+#include "content.h"
+#include "position_image.h"
+#include "piece.h"
#include <boost/shared_ptr.hpp>
-#include <boost/thread.hpp>
-#include <boost/thread/mutex.hpp>
+#include <boost/enable_shared_from_this.hpp>
+#include <list>
-class FilmState;
-class Screen;
+class PlayerVideo;
+class Playlist;
+class Font;
+class AudioBuffers;
-class Player
+/** @class Player
+ * @brief A class which can `play' a Playlist.
+ */
+class Player : public boost::enable_shared_from_this<Player>, public boost::noncopyable
{
public:
- enum Split {
- SPLIT_NONE,
- SPLIT_LEFT,
- SPLIT_RIGHT
- };
-
- Player (boost::shared_ptr<const FilmState>, boost::shared_ptr<const Screen>, Split);
- ~Player ();
-
- void command (std::string);
-
- float position () const;
- bool paused () const;
-
- pid_t mplayer_pid () const {
- return _mplayer_pid;
- }
+ Player (boost::shared_ptr<const Film>, boost::shared_ptr<const Playlist> playlist);
+
+ std::list<boost::shared_ptr<PlayerVideo> > get_video (DCPTime time, bool accurate);
+ boost::shared_ptr<AudioBuffers> get_audio (DCPTime time, DCPTime length, bool accurate);
+ PlayerSubtitles get_subtitles (DCPTime time, DCPTime length, bool starting, bool burnt);
+ std::list<boost::shared_ptr<Font> > get_subtitle_fonts ();
+
+ void set_video_container_size (dcp::Size);
+ void set_ignore_video ();
+ void set_enable_subtitles (bool enable);
+ void set_always_burn_subtitles (bool burn);
+
+ /** 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);
-
- 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;
+ friend class PlayerWrapper;
+ friend class Piece;
+ friend struct player_overlaps_test;
+ friend struct player_time_calculation_test1;
+ friend struct player_time_calculation_test2;
+ friend struct player_time_calculation_test3;
+
+ void setup_pieces ();
+ void flush ();
+ void film_changed (Film::Property);
+ void playlist_changed ();
+ void playlist_content_changed (boost::weak_ptr<Content>, int, bool);
+ std::list<PositionImage> transform_image_subtitles (std::list<ImageSubtitle>) const;
+ void update_subtitle_from_text ();
+ Frame dcp_to_content_video (boost::shared_ptr<const Piece> piece, DCPTime t) const;
+ DCPTime content_video_to_dcp (boost::shared_ptr<const Piece> piece, Frame f) const;
+ Frame dcp_to_resampled_audio (boost::shared_ptr<const Piece> piece, DCPTime t) const;
+ ContentTime dcp_to_content_subtitle (boost::shared_ptr<const Piece> piece, DCPTime t) const;
+ boost::shared_ptr<PlayerVideo> black_player_video_frame (DCPTime) const;
+
+ /** @return Pieces of content type C that overlap a specified time range in the DCP */
+ template<class C>
+ std::list<boost::shared_ptr<Piece> >
+ overlaps (DCPTime from, DCPTime to)
+ {
+ if (!_have_valid_pieces) {
+ setup_pieces ();
+ }
+
+ 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)) {
+ continue;
+ }
+
+ if ((*i)->content->position() <= to && (*i)->content->end() >= from) {
+ overlaps.push_back (*i);
+ }
+ }
+
+ return overlaps;
+ }
+
+ 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;
+
+ /** Size of the image in the DCP (e.g. 1990x1080 for flat) */
+ dcp::Size _video_container_size;
+ boost::shared_ptr<Image> _black_image;
+
+ /** true if the player should ignore all video; i.e. never produce any */
+ bool _ignore_video;
+ /** true if the player should always burn subtitles into the video regardless
+ of content settings
+ */
+ bool _always_burn_subtitles;
+
+ boost::shared_ptr<AudioProcessor> _audio_processor;
+
+ boost::signals2::scoped_connection _film_changed_connection;
+ boost::signals2::scoped_connection _playlist_changed_connection;
+ boost::signals2::scoped_connection _playlist_content_changed_connection;
};
#endif
projects / dcpomatic.git / blobdiff