- Encoder (boost::shared_ptr<const Film>, boost::shared_ptr<Writer>);
- virtual ~Encoder ();
-
- /** Called to indicate that a processing run is about to begin */
- void begin ();
-
- /** Called to pass in zero or more bits of video to be encoded
- * as the next DCP frame.
- */
- void encode (std::list<boost::shared_ptr<PlayerVideo> > f);
-
- /** Called when a processing run has finished */
- void end ();
-
- float current_encoding_rate () const;
- int video_frames_out () const;
-
-private:
-
- void enqueue (boost::shared_ptr<PlayerVideo> f);
- void frame_done ();
-
- void encoder_thread (boost::optional<ServerDescription>);
- void terminate_threads ();
- void servers_list_changed ();
-
- /** Film that we are encoding */
- boost::shared_ptr<const Film> _film;
-
- /** Mutex for _time_history and _video_frames_enqueued */
- mutable boost::mutex _state_mutex;
- /** List of the times of completion of the last _history_size frames;
- first is the most recently completed.
- */
- std::list<struct timeval> _time_history;
- /** Number of frames that we should keep history for */
- static int const _history_size;
- /** Current DCP frame index */
- Frame _position;
-
- /* XXX: probably should be atomic */
- bool _terminate_enqueue;
- bool _terminate_encoding;
- /** Mutex for _threads */
- mutable boost::mutex _threads_mutex;
- std::list<boost::thread *> _threads;
- mutable boost::mutex _queue_mutex;
- std::list<boost::shared_ptr<DCPVideo> > _queue;
- /** condition to manage thread wakeups when we have nothing to do */
- boost::condition _empty_condition;
- /** condition to manage thread wakeups when we have too much to do */
- boost::condition _full_condition;
-
- boost::shared_ptr<Writer> _writer;
- Waker _waker;
-
- boost::shared_ptr<PlayerVideo> _last_player_video;
-
- boost::signals2::scoped_connection _server_found_connection;
+ Encoder (std::shared_ptr<const Film> film, std::weak_ptr<Job> job);
+ virtual ~Encoder () {}
+
+ Encoder (Encoder const&) = delete;
+ Encoder& operator= (Encoder const&) = delete;
+
+ virtual void go () = 0;
+
+ /** @return the current frame rate over the last short while */
+ virtual boost::optional<float> current_rate () const {
+ return {};
+ }
+
+ /** @return the number of frames that are done */
+ virtual Frame frames_done () const = 0;
+ virtual bool finishing () const = 0;
+
+protected:
+ std::shared_ptr<const Film> _film;
+ std::weak_ptr<Job> _job;
+ std::shared_ptr<Player> _player;