/*
- Copyright (C) 2012-2016 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2017 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
#ifndef DCPOMATIC_ENCODER_H
#define DCPOMATIC_ENCODER_H
-/** @file src/encoder.h
- * @brief Encoder class.
- */
-
-#include "util.h"
-#include "cross.h"
-#include "exception_store.h"
-#include <boost/shared_ptr.hpp>
-#include <boost/thread/mutex.hpp>
-#include <boost/thread/condition.hpp>
-#include <boost/thread.hpp>
-#include <boost/optional.hpp>
+#include "types.h"
+#include "player_text.h"
+#include <boost/weak_ptr.hpp>
#include <boost/signals2.hpp>
-#include <boost/enable_shared_from_this.hpp>
-#include <list>
-#include <stdint.h>
class Film;
-class EncodeServerDescription;
-class DCPVideo;
-class Writer;
+class Encoder;
+class Player;
class Job;
class PlayerVideo;
+class AudioBuffers;
-/** @class Encoder
- * @brief Class to manage encoding to JPEG2000.
- *
- * This class keeps a queue of frames to be encoded and distributes
- * the work around threads and encoding servers.
- */
-
-class Encoder : public boost::noncopyable, public ExceptionStore, public boost::enable_shared_from_this<Encoder>
+/** @class Encoder */
+class Encoder : public boost::noncopyable
{
public:
- Encoder (boost::shared_ptr<const Film>, boost::shared_ptr<Writer>);
- ~Encoder ();
-
- /** Called to indicate that a processing run is about to begin */
- void begin ();
-
- /** Called to pass a bit of video to be encoded as the next DCP frame */
- void encode (boost::shared_ptr<PlayerVideo> f, DCPTime time);
-
- /** Called when a processing run has finished */
- void end ();
-
- float current_encoding_rate () const;
- int video_frames_enqueued () const;
-
- void servers_list_changed ();
+ Encoder (boost::shared_ptr<const Film> film, boost::weak_ptr<Job> job);
+ virtual ~Encoder () {}
-private:
+ virtual void go () = 0;
- static void call_servers_list_changed (boost::weak_ptr<Encoder> encoder);
+ /** @return the current frame rate over the last short while */
+ virtual boost::optional<float> current_rate () const {
+ return boost::optional<float>();
+ }
- void frame_done ();
+ /** @return the number of frames that are done */
+ virtual Frame frames_done () const = 0;
+ virtual bool finishing () const = 0;
- void encoder_thread (boost::optional<EncodeServerDescription>);
- void terminate_threads ();
-
- /** Film that we are encoding */
+protected:
boost::shared_ptr<const Film> _film;
-
- /** Mutex for _time_history */
- 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;
-
- /** 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::optional<DCPTime> _last_player_video_time;
-
- boost::signals2::scoped_connection _server_found_connection;
+ boost::weak_ptr<Job> _job;
+ boost::shared_ptr<Player> _player;
};
#endif