/*
- Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2013 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 "audio_buffers.h"
+#include "content.h"
+#include "film.h"
+#include "rect.h"
-class FilmState;
-class Screen;
+class Job;
+class Film;
+class Playlist;
+class AudioContent;
+class Piece;
+class Image;
+class Resampler;
-class Player
+/** @class Player
+ * @brief A class which can `play' a Playlist; emitting its audio and video.
+ */
+
+class Player : public boost::enable_shared_from_this<Player>
{
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>);
+
+ void disable_video ();
+ void disable_audio ();
+
+ bool pass ();
+ void seek (Time, bool);
+
+ Time video_position () const {
+ return _video_position;
}
+ void set_video_container_size (libdcp::Size);
+
+ /** Emitted when a video frame is ready.
+ * First parameter is the video image.
+ * Second parameter is true if the image is the same as the last one that was emitted.
+ * Third parameter is the time.
+ */
+ boost::signals2::signal<void (boost::shared_ptr<const Image>, bool, Time)> Video;
+
+ /** Emitted when some audio data is ready */
+ boost::signals2::signal<void (boost::shared_ptr<const AudioBuffers>, Time)> Audio;
+
+ /** 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;
+
+ void process_video (boost::weak_ptr<Piece>, boost::shared_ptr<const Image>, bool, VideoContent::Frame);
+ void process_audio (boost::weak_ptr<Piece>, boost::shared_ptr<const AudioBuffers>, AudioContent::Frame);
+ void process_subtitle (boost::weak_ptr<Piece>, boost::shared_ptr<Image>, dcpomatic::Rect<double>, Time, Time);
+ void setup_pieces ();
+ void playlist_changed ();
+ void content_changed (boost::weak_ptr<Content>, int, bool);
+ void do_seek (Time, bool);
+ void flush ();
+ void emit_black ();
+ void emit_silence (OutputAudioFrame);
+ boost::shared_ptr<Resampler> resampler (boost::shared_ptr<AudioContent>);
+ void film_changed (Film::Property);
+ void update_subtitle ();
+
+ boost::shared_ptr<const Film> _film;
+ boost::shared_ptr<const Playlist> _playlist;
- 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;
+ bool _video;
+ bool _audio;
+
+ /** 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;
+
+ /** The time after the last video that we emitted */
+ Time _video_position;
+ /** The time after the last audio that we emitted */
+ Time _audio_position;
+
+ AudioBuffers _audio_buffers;
+
+ libdcp::Size _video_container_size;
+ boost::shared_ptr<Image> _black_frame;
+ std::map<boost::shared_ptr<AudioContent>, boost::shared_ptr<Resampler> > _resamplers;
+ boost::shared_ptr<Resampler> _last_resampler;
+
+ struct {
+ boost::weak_ptr<Piece> piece;
+ boost::shared_ptr<Image> image;
+ dcpomatic::Rect<double> rect;
+ Time from;
+ Time to;
+ } _in_subtitle;
+
+ struct {
+ boost::shared_ptr<Image> image;
+ Position<int> position;
+ Time from;
+ Time to;
+ } _out_subtitle;
+
+#ifdef DCPOMATIC_DEBUG
+ boost::shared_ptr<Content> _last_video;
+#endif
};
#endif