X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fencoder.h;h=27ae64aac589ba577578fb874fcafdffe8557b40;hb=a78b741c43830c84bcb4d18e3147746f13a668e5;hp=6c465f816773d12635f1b11dd020a807c7a1b756;hpb=2c0478d2b33906845b9d910668b12fe3e8f03a7c;p=dcpomatic.git

diff --git a/src/lib/encoder.h b/src/lib/encoder.h
index 6c465f816..27ae64aac 100644
--- a/src/lib/encoder.h
+++ b/src/lib/encoder.h
@@ -1,99 +1,90 @@
 /*
-    Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2012-2016 Carl Hetherington <cth@carlh.net>
 
-    This program is free software; you can redistribute it and/or modify
+    This file is part of DCP-o-matic.
+
+    DCP-o-matic is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 2 of the License, or
     (at your option) any later version.
 
-    This program is distributed in the hope that it will be useful,
+    DCP-o-matic is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
 
     You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+    along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
 
 */
 
 #ifndef DCPOMATIC_ENCODER_H
 #define DCPOMATIC_ENCODER_H
 
-/** @file src/encoder.h
- *  @brief Encoder to J2K and WAV for DCP.
+/** @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 <boost/signals2.hpp>
+#include <boost/enable_shared_from_this.hpp>
 #include <list>
 #include <stdint.h>
-extern "C" {
-#include <libavutil/samplefmt.h>
-#include <libswresample/swresample.h>
-}
-#include "util.h"
-#include "config.h"
-#include "cross.h"
 
-class Image;
-class AudioBuffers;
 class Film;
-class ServerDescription;
-class DCPVideoFrame;
-class EncodedData;
+class EncodeServerDescription;
+class DCPVideo;
 class Writer;
 class Job;
-class ServerFinder;
-class DCPVideo;
+class PlayerVideo;
 
 /** @class Encoder
- *  @brief Encoder to J2K and WAV for DCP.
+ *  @brief Class to manage encoding to JPEG2000.
  *
- *  Video is supplied to process_video as RGB frames, and audio
- *  is supplied as uncompressed PCM in blocks of various sizes.
+ *  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
+class Encoder : public boost::noncopyable, public ExceptionStore, public boost::enable_shared_from_this<Encoder>
 {
 public:
-	Encoder (boost::shared_ptr<const Film> f, boost::weak_ptr<Job>);
-	virtual ~Encoder ();
+	Encoder (boost::shared_ptr<const Film>, boost::shared_ptr<Writer>);
+	~Encoder ();
 
 	/** Called to indicate that a processing run is about to begin */
-	void process_begin ();
-
-	/** Call with a frame of video.
-	 *  @param f Video frame.
-	 */
-	void process_video (boost::shared_ptr<DCPVideo> f);
+	void begin ();
 
-	/** Call with some audio data */
-	void process_audio (boost::shared_ptr<const AudioBuffers>);
+	/** 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 process_end ();
+	void end ();
 
 	float current_encoding_rate () const;
-	int video_frames_out () const;
+	int video_frames_enqueued () const;
+
+	void servers_list_changed ();
 
 private:
-	
+
+	static void call_servers_list_changed (boost::weak_ptr<Encoder> encoder);
+
 	void frame_done ();
-	
-	void encoder_thread (boost::optional<ServerDescription>);
+
+	void encoder_thread (boost::optional<EncodeServerDescription>);
 	void terminate_threads ();
-	void add_worker_threads (ServerDescription);
-	void server_found (ServerDescription);
 
 	/** Film that we are encoding */
 	boost::shared_ptr<const Film> _film;
-	boost::weak_ptr<Job> _job;
 
-	/** Mutex for _time_history and _last_frame */
+	/** 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.
@@ -102,17 +93,23 @@ private:
 	/** Number of frames that we should keep history for */
 	static int const _history_size;
 
-	/** Number of video frames written for the DCP so far */
-	int _video_frames_out;
-
-	bool _terminate;
-	std::list<boost::shared_ptr<DCPVideoFrame> > _queue;
+	/** Mutex for _threads */
+	mutable boost::mutex _threads_mutex;
 	std::list<boost::thread *> _threads;
-	mutable boost::mutex _mutex;
-	boost::condition _condition;
+	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;
 };
 
 #endif