-/* -*- c-basic-offset: 8; default-tab-width: 8; -*- */
-
/*
Copyright (C) 2013 Carl Hetherington <cth@carlh.net>
#include <list>
#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"
#include "playlist.h"
#include "audio_buffers.h"
+#include "content.h"
+#include "film.h"
class Job;
class Film;
class Playlist;
class AudioContent;
-class Decoder;
+class Piece;
+class Image;
+class Resampler;
/** @class Player
* @brief A class which can `play' a Playlist; emitting its audio and video.
*/
-class Player : public VideoSource, public AudioSource, public boost::enable_shared_from_this<Player>
+class Player : public boost::enable_shared_from_this<Player>
{
public:
Player (boost::shared_ptr<const Film>, boost::shared_ptr<const Playlist>);
void disable_video ();
void disable_audio ();
- void disable_subtitles ();
bool pass ();
- bool seek (Time);
- void seek_back ();
- void seek_forward ();
+ void seek (Time, bool);
- Time last_video () const {
- return _last_video;
+ Time video_position () const {
+ return _video_position;
}
-private:
+ void set_video_container_size (libdcp::Size);
- struct DecoderRecord
- {
- DecoderRecord ()
- : last (0)
- {}
-
- boost::shared_ptr<Content> content;
- boost::shared_ptr<Decoder> decoder;
- Time last;
- };
+ /** 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;
- void process_video (boost::shared_ptr<DecoderRecord>, boost::shared_ptr<const Image>, bool, boost::shared_ptr<Subtitle>, Time);
- void process_audio (boost::shared_ptr<DecoderRecord>, boost::shared_ptr<const AudioBuffers>, Time);
- void setup_decoders ();
+ /** 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.
+ */
+ boost::signals2::signal<void ()> Changed;
+
+private:
+
+ 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 setup_pieces ();
void playlist_changed ();
void content_changed (boost::weak_ptr<Content>, int);
- void emit_black_frame ();
- void emit_silence (Time);
+ 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);
boost::shared_ptr<const Film> _film;
boost::shared_ptr<const Playlist> _playlist;
bool _video;
bool _audio;
- bool _subtitles;
- /** Our decoders are ready to go; if this is false the decoders must be (re-)created before they are used */
- bool _have_valid_decoders;
- std::list<boost::shared_ptr<DecoderRecord> > _decoders;
+ /** 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;
- Time _position;
AudioBuffers _audio_buffers;
- Time _last_video;
- bool _last_was_black;
- Time _last_audio;
+
+ libdcp::Size _video_container_size;
+ boost::shared_ptr<Image> _black_frame;
+ std::map<boost::shared_ptr<AudioContent>, boost::shared_ptr<Resampler> > _resamplers;
};
#endif