X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fbutler.h;h=1dba6e129839ab1ff9920bd1ee61d3cac622d2c3;hb=HEAD;hp=e5581ccb42169e6f07e555d174c348d1b49517ec;hpb=335ef709439cd3678f6813a3fb880110e4c9cb26;p=dcpomatic.git

diff --git a/src/lib/butler.h b/src/lib/butler.h
index e5581ccb4..6bb0467af 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.
 
@@ -18,78 +18,106 @@
 
 */
 
-#include "video_ring_buffers.h"
-#include "audio_ring_buffers.h"
-#include "text_ring_buffers.h"
+
+#ifndef DCPOMATIC_BUTLER_H
+#define DCPOMATIC_BUTLER_H
+
+
 #include "audio_mapping.h"
+#include "audio_ring_buffers.h"
+#include "change_signaller.h"
 #include "exception_store.h"
-#include <boost/shared_ptr.hpp>
-#include <boost/weak_ptr.hpp>
+#include "text_ring_buffers.h"
+#include "text_type.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>
-#include <boost/asio.hpp>
+
 
 class Player;
 class PlayerVideo;
 
-class Butler : public ExceptionStore, public boost::noncopyable
+
+class Butler : public ExceptionStore
 {
 public:
+	enum class Audio
+	{
+		ENABLED,
+		DISABLED
+	};
+
 	Butler (
-		boost::shared_ptr<Player> player,
+		std::weak_ptr<const Film> film,
+		Player& player,
 		AudioMapping map,
 		int audio_channels,
-		boost::function<AVPixelFormat (AVPixelFormat)> pixel_format,
-		bool aligned,
-		bool fast
+		std::function<AVPixelFormat (AVPixelFormat)> pixel_format,
+		VideoRange video_range,
+		Image::Alignment alignment,
+		bool fast,
+		bool prepare_only_proxy,
+		Audio audio
 		);
 
 	~Butler ();
 
+	Butler (Butler const&) = delete;
+	Butler& operator= (Butler const&) = delete;
+
 	void seek (dcpomatic::DCPTime position, bool accurate);
 
-	enum Error {
-		NONE,
-		AGAIN
+	class Error {
+	public:
+		enum class Code {
+			NONE,
+			AGAIN,
+			DIED,
+			FINISHED
+		};
+
+		Code code = Code::NONE;
+		std::string message;
+
+		std::string summary () const;
 	};
 
-	std::pair<boost::shared_ptr<PlayerVideo>, dcpomatic::DCPTime> get_video (bool blocking, Error* e = 0);
-	boost::optional<dcpomatic::DCPTime> get_audio (float* out, Frame frames);
-	boost::optional<TextRingBuffers::Data> get_closed_caption ();
+	enum class Behaviour {
+		BLOCKING,
+		NON_BLOCKING
+	};
 
-	void disable_audio ();
+	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, dcpomatic::DCPTime time);
-	void audio (boost::shared_ptr<AudioBuffers> audio, dcpomatic::DCPTime time, int frame_rate);
+	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 (boost::weak_ptr<PlayerVideo> video);
-	void player_change (ChangeType type);
+	void prepare (std::weak_ptr<PlayerVideo> video);
+	void player_change (ChangeType type, int property);
 	void seek_unlocked (dcpomatic::DCPTime position, bool accurate);
 
-	boost::shared_ptr<Player> _player;
-	boost::thread* _thread;
+	std::weak_ptr<const Film> _film;
+	Player& _player;
+	boost::thread _thread;
 
-	/** mutex to protect _video, _audio and _closed_caption for when we are clearing them and they all need to be
-	    cleared together without any data being inserted in the interim;
-	    XXX: is this necessary now that all butler output data is timestamped? Perhaps the locked clear-out
-	    is only required if we guarantee that get_video() and get_audio() calls are in sync.
-	*/
-	boost::mutex _buffers_mutex;
 	VideoRingBuffers _video;
 	AudioRingBuffers _audio;
 	TextRingBuffers _closed_caption;
 
 	boost::thread_group _prepare_pool;
 	boost::asio::io_service _prepare_service;
-	boost::shared_ptr<boost::asio::io_service::work> _prepare_work;
+	std::shared_ptr<boost::asio::io_service::work> _prepare_work;
 
-	/** mutex to protect _pending_seek_position, _pending_seek_acurate, _finished, _died, _stop_thread */
+	/** mutex to protect _pending_seek_position, _pending_seek_accurate, _finished, _died, _stop_thread */
 	boost::mutex _mutex;
 	boost::condition _summon;
 	boost::condition _arrived;
@@ -98,6 +126,7 @@ private:
 	int _suspended;
 	bool _finished;
 	bool _died;
+	std::string _died_message;
 	bool _stop_thread;
 
 	AudioMapping _audio_mapping;
@@ -105,10 +134,19 @@ private:
 
 	bool _disable_audio;
 
-	boost::function<AVPixelFormat (AVPixelFormat)> _pixel_format;
-	bool _aligned;
+	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.
 	*/
@@ -119,3 +157,7 @@ private:
 	boost::signals2::scoped_connection _player_text_connection;
 	boost::signals2::scoped_connection _player_change_connection;
 };
+
+
+#endif
+