X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fbutler.h;h=87408646bc28e3e458e23f75757cc5a81b80da44;hb=ff639b3cf30afcc097bfd21d39c8d15f466cadd6;hp=f483524482bddd86e324aebe5ed9e407f1439acf;hpb=90c447e9200b9eef0f542b21fab1d0d9eebab733;p=dcpomatic.git

diff --git a/src/lib/butler.h b/src/lib/butler.h
index f48352448..87408646b 100644
--- a/src/lib/butler.h
+++ b/src/lib/butler.h
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2016-2017 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2016-2021 Carl Hetherington <cth@carlh.net>
 
     This file is part of DCP-o-matic.
 
@@ -18,56 +18,137 @@
 
 */
 
-#include "video_ring_buffers.h"
-#include "audio_ring_buffers.h"
+
 #include "audio_mapping.h"
-#include <boost/shared_ptr.hpp>
-#include <boost/weak_ptr.hpp>
+#include "audio_ring_buffers.h"
+#include "change_signaller.h"
+#include "exception_store.h"
+#include "text_ring_buffers.h"
+#include "video_ring_buffers.h"
+#include <boost/asio.hpp>
+#include <boost/signals2.hpp>
 #include <boost/thread.hpp>
 #include <boost/thread/condition.hpp>
-#include <boost/signals2.hpp>
 
-class Film;
+
 class Player;
 class PlayerVideo;
 
-class Butler : public boost::noncopyable
+
+class Butler : public ExceptionStore
 {
 public:
-	Butler (boost::weak_ptr<const Film> film, boost::shared_ptr<Player> player, AudioMapping map, int audio_channels);
+	enum class Audio
+	{
+		ENABLED,
+		DISABLED
+	};
+
+	Butler (
+		std::weak_ptr<const Film> film,
+		std::shared_ptr<Player> player,
+		AudioMapping map,
+		int audio_channels,
+		std::function<AVPixelFormat (AVPixelFormat)> pixel_format,
+		VideoRange video_range,
+		Image::Alignment alignment,
+		bool fast,
+		bool prepare_only_proxy,
+		Audio audio
+		);
+
 	~Butler ();
 
-	void seek (DCPTime position, bool accurate);
-	std::pair<boost::shared_ptr<PlayerVideo>, DCPTime> get_video ();
-	void get_audio (float* out, Frame frames);
+	Butler (Butler const&) = delete;
+	Butler& operator= (Butler const&) = delete;
+
+	void seek (dcpomatic::DCPTime position, bool accurate);
+
+	class Error {
+	public:
+		enum class Code {
+			NONE,
+			AGAIN,
+			DIED,
+			FINISHED
+		};
+
+		Code code = Code::NONE;
+		std::string message;
+
+		std::string summary () const;
+	};
+
+	enum class Behaviour {
+		BLOCKING,
+		NON_BLOCKING
+	};
+
+	std::pair<std::shared_ptr<PlayerVideo>, dcpomatic::DCPTime> get_video (Behaviour behaviour, Error* e = nullptr);
+	boost::optional<dcpomatic::DCPTime> get_audio (Behaviour behaviour, float* out, Frame frames);
+	boost::optional<TextRingBuffers::Data> get_closed_caption ();
+
+	std::pair<size_t, std::string> memory_used () const;
 
 private:
 	void thread ();
-	void video (boost::shared_ptr<PlayerVideo> video, DCPTime time);
-	void audio (boost::shared_ptr<AudioBuffers> audio, DCPTime time);
-	void player_changed ();
-
-	boost::weak_ptr<const Film> _film;
-	boost::shared_ptr<Player> _player;
-	boost::thread* _thread;
+	void video (std::shared_ptr<PlayerVideo> video, dcpomatic::DCPTime time);
+	void audio (std::shared_ptr<AudioBuffers> audio, dcpomatic::DCPTime time, int frame_rate);
+	void text (PlayerText pt, TextType type, boost::optional<DCPTextTrack> track, dcpomatic::DCPTimePeriod period);
+	bool should_run () const;
+	void prepare (std::weak_ptr<PlayerVideo> video);
+	void player_change (ChangeType type, int property);
+	void seek_unlocked (dcpomatic::DCPTime position, bool accurate);
+
+	std::weak_ptr<const Film> _film;
+	std::shared_ptr<Player> _player;
+	boost::thread _thread;
 
 	VideoRingBuffers _video;
 	AudioRingBuffers _audio;
+	TextRingBuffers _closed_caption;
+
+	boost::thread_group _prepare_pool;
+	boost::asio::io_service _prepare_service;
+	std::shared_ptr<boost::asio::io_service::work> _prepare_work;
 
+	/** mutex to protect _pending_seek_position, _pending_seek_accurate, _finished, _died, _stop_thread */
 	boost::mutex _mutex;
 	boost::condition _summon;
 	boost::condition _arrived;
-	boost::optional<DCPTime> _pending_seek_position;
+	boost::optional<dcpomatic::DCPTime> _pending_seek_position;
 	bool _pending_seek_accurate;
-
+	int _suspended;
 	bool _finished;
+	bool _died;
+	std::string _died_message;
+	bool _stop_thread;
 
 	AudioMapping _audio_mapping;
 	int _audio_channels;
 
-	bool _stop_thread;
+	bool _disable_audio;
+
+	std::function<AVPixelFormat (AVPixelFormat)> _pixel_format;
+	VideoRange _video_range;
+	Image::Alignment _alignment;
+	bool _fast;
+
+	/** true to ask PlayerVideo::prepare to only prepare the ImageProxy and not also
+	 *  the final image.  We want to do this when the viewer is intending to call
+	 *  PlayerVideo::raw_image() and do the things in PlayerVideo::make_image() itself:
+	 *  this is the case for the GLVideoView which can do scale, pixfmt conversion etc.
+	 *  in the shader.
+	 */
+	bool _prepare_only_proxy = false;
+
+	/** If we are waiting to be refilled following a seek, this is the time we were
+	    seeking to.
+	*/
+	boost::optional<dcpomatic::DCPTime> _awaiting;
 
 	boost::signals2::scoped_connection _player_video_connection;
 	boost::signals2::scoped_connection _player_audio_connection;
-	boost::signals2::scoped_connection _player_changed_connection;
+	boost::signals2::scoped_connection _player_text_connection;
+	boost::signals2::scoped_connection _player_change_connection;
 };