#include <boost/thread.hpp>
#include <boost/thread/condition.hpp>
#include <boost/signals2.hpp>
+#include <boost/asio.hpp>
-class Film;
class Player;
class PlayerVideo;
+class Log;
class Butler : public ExceptionStore, public boost::noncopyable
{
public:
- Butler (boost::weak_ptr<const Film> film, boost::shared_ptr<Player> player, AudioMapping map, int audio_channels);
+ Butler (boost::shared_ptr<Player> player, boost::shared_ptr<Log> log, AudioMapping map, int audio_channels);
~Butler ();
void seek (DCPTime position, bool accurate);
std::pair<boost::shared_ptr<PlayerVideo>, DCPTime> get_video ();
- void get_audio (float* out, Frame frames);
+ boost::optional<DCPTime> get_audio (float* out, Frame frames);
+
+ void disable_audio ();
+
+ 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 ();
+ bool should_run () const;
+ void prepare (boost::weak_ptr<PlayerVideo> video) const;
+ void player_changed (int);
+ void seek_unlocked (DCPTime position, bool accurate);
- boost::weak_ptr<const Film> _film;
boost::shared_ptr<Player> _player;
+ boost::shared_ptr<Log> _log;
boost::thread* _thread;
+ /** mutex to protect _video and _audio for when we are clearing them and they both need to be
+ cleared together without any data being inserted in the interim.
+ */
+ boost::mutex _video_audio_mutex;
VideoRingBuffers _video;
AudioRingBuffers _audio;
+ boost::thread_group _prepare_pool;
+ boost::asio::io_service _prepare_service;
+ boost::shared_ptr<boost::asio::io_service::work> _prepare_work;
+
+ /** mutex to protect _pending_seek_position, _pending_seek_acurate, _finished, _died, _stop_thread */
boost::mutex _mutex;
boost::condition _summon;
boost::condition _arrived;
boost::optional<DCPTime> _pending_seek_position;
bool _pending_seek_accurate;
-
bool _finished;
+ bool _died;
+ bool _stop_thread;
AudioMapping _audio_mapping;
int _audio_channels;
- bool _stop_thread;
+ bool _disable_audio;
+
+ /** If we are waiting to be refilled following a seek, this is the time we were
+ seeking to.
+ */
+ boost::optional<DCPTime> _awaiting;
boost::signals2::scoped_connection _player_video_connection;
boost::signals2::scoped_connection _player_audio_connection;