/*
- Copyright (C) 2013 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 DCPOMATIC_PLAYER_H
#define DCPOMATIC_PLAYER_H
-#include <list>
+#include "player_subtitles.h"
+#include "film.h"
+#include "content.h"
+#include "position_image.h"
+#include "piece.h"
#include <boost/shared_ptr.hpp>
#include <boost/enable_shared_from_this.hpp>
-#include "video_source.h"
-#include "audio_source.h"
-#include "video_sink.h"
-#include "audio_sink.h"
-
-class VideoDecoder;
-class SndfileDecoder;
-class Job;
-class Film;
+#include <list>
+
+class PlayerVideo;
class Playlist;
-class AudioContent;
+class Font;
+class AudioBuffers;
-class Player : public VideoSource, public AudioSource, public VideoSink, public boost::enable_shared_from_this<Player>
+/** @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>);
-
- void disable_video ();
- void disable_audio ();
- void disable_subtitles ();
- void disable_video_sync ();
-
- bool pass ();
- void set_progress (boost::shared_ptr<Job>);
- bool seek (double);
-
- double last_video_time () const;
+ 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 process_video (boost::shared_ptr<Image> i, bool same, boost::shared_ptr<Subtitle> s);
- void process_audio (boost::weak_ptr<const AudioContent>, boost::shared_ptr<AudioBuffers>);
- void setup_decoders ();
+ 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 content_changed (boost::weak_ptr<Content>, int);
+ 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;
-
- bool _video;
- bool _audio;
- bool _subtitles;
-
- bool _have_valid_decoders;
- std::list<boost::shared_ptr<VideoDecoder> > _video_decoders;
- std::list<boost::shared_ptr<VideoDecoder> >::iterator _video_decoder;
- std::list<boost::shared_ptr<SndfileDecoder> > _sndfile_decoders;
-
- boost::shared_ptr<AudioBuffers> _audio_buffers;
-
- bool _video_sync;
+
+ /** 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