@class NSHashTable, NSString, NSArray, AVOutputContext, NSMutableDictionary, NSDictionary, BSAtomicSignal, NSObject, NSNotificationCenter;
@protocol OS_dispatch_queue, SBAVSystemControllerDataProviding, OS_dispatch_workloop;
@interface SBAVSystemControllerCache : NSObject {
NSObject<OS_dispatch_queue> *_callOutQueue;
NSNotificationCenter *_notificationCenter;
id /* block */ _dataProviderInitializer;
NSObject<OS_dispatch_queue> *_queue;
NSHashTable *_queue_observers;
AVOutputContext *_queue_outputContext;
id<SBAVSystemControllerDataProviding> _queue_dataProvider;
NSMutableDictionary *_notificationToHandlerMap;
NSMutableDictionary *_notificationToBackgroundQueryCancellationSignalMap;
BOOL _queue_initialized;
BSAtomicSignal *_queue_serverDeathSignal;
BOOL _queue_fullyMuted;
BOOL _queue_ringerMuted;
BOOL _queue_audioSessionPlaying;
BOOL _queue_airplayDisplayActive;
NSString *_queue_activeCategoryName;
NSString *_queue_activeAudioRoute;
NSDictionary *_queue_activeAudioRouteInfo;
NSArray *_queue_pickableRoutes;
NSArray *_queue_activeOutputDevices;
BOOL _outputContextSupportsMultipleOutputDevices;
NSObject<OS_dispatch_queue> *_backgroundQueryQueue;
}
@property (readonly, nonatomic) NSObject<OS_dispatch_workloop> *avscOperationsWorkloop;
@property (readonly, nonatomic, getter=isFullyMuted) BOOL fullyMuted;
@property (readonly, nonatomic, getter=isRingerMuted) BOOL ringerMuted;
@property (readonly, nonatomic, getter=isAudioSessionPlaying) BOOL audioSessionPlaying;
@property (readonly, nonatomic, getter=isAirplayDisplayActive) BOOL airplayDisplayActive;
@property (readonly, copy, nonatomic) NSString *activeCategoryName;
@property (readonly, copy, nonatomic) NSString *activeAudioRoute;
@property (readonly, copy, nonatomic) NSDictionary *activeAudioRouteInfo;
@property (readonly, copy, nonatomic) NSArray *pickableRoutes;
@property (readonly, copy, nonatomic) NSArray *activeOutputDevices;
+ (id)sharedInstance;
- (void)_queue_finishRebuildingCacheWithDataProvider:(id)a0 serverDeathSignal:(id)a1;
- (id)init;
- (id)activeOutputDevices;
- (void)dealloc;
- (void)_queue_updateActiveOutputDevicesFromNotification:(id)a0 allowingBackgroundQueries:(BOOL)a1 backgroundQueriesCancelledBlock:(id /* block */)a2 cancelBackgroundQueriesBlock:(id /* block */)a3 completion:(id /* block */)a4;
- (id)initWithCallOutQueue:(id)a0 notificationCenter:(id)a1 dataProviderInitializer:(id /* block */)a2;
- (id)_queryActiveOutputDevicesFromContext:(id)a0;
- (void)_queue_signalBackgroundQueryCancellationForNotification:(id)a0;
- (id)_backgroundQueryQueue_rebuildDataProvider;
- (id)activeCategoryName;
- (id)_queue_backgroundQueryCancellationSignalForNotificationCreatingIfNecessary:(id)a0;
- (id)activeAudioRoute;
- (void)_serverDied:(id)a0;
- (void)fetchPickableRoutesWithCompletion:(id /* block */)a0;
- (id)activeAudioRouteInfo;
- (void).cxx_destruct;
- (void)_queue_updateAudioSessionPlayingFromNotification:(id)a0 allowingBackgroundQueries:(BOOL)a1 backgroundQueriesCancelledBlock:(id /* block */)a2 cancelBackgroundQueriesBlock:(id /* block */)a3 completion:(id /* block */)a4;
- (void)_queue_updatePickableRoutesFromNotification:(id)a0 allowingBackgroundQueries:(BOOL)a1 backgroundQueriesCancelledBlock:(id /* block */)a2 cancelBackgroundQueriesBlock:(id /* block */)a3 completion:(id /* block */)a4;
- (void)_queue_updateActiveCategoryNameFromNotification:(id)a0 allowingBackgroundQueries:(BOOL)a1 backgroundQueriesCancelledBlock:(id /* block */)a2 cancelBackgroundQueriesBlock:(id /* block */)a3 completion:(id /* block */)a4;
- (void)_queue_rebuildCache;
- (id)pickableRoutes;
- (void)_receiveUpdatedValueFromNotification:(id)a0;
- (void)_queue_updateActiveAudioRouteFromNotification:(id)a0 allowingBackgroundQueries:(BOOL)a1 backgroundQueriesCancelledBlock:(id /* block */)a2 cancelBackgroundQueriesBlock:(id /* block */)a3 completion:(id /* block */)a4;
- (void)addObserver:(id)a0;
- (void)_queue_notifyObserversWithBlock:(id /* block */)a0;
- (void)_queue_updateFullyMutedFromNotification:(id)a0 allowingBackgroundQueries:(BOOL)a1 backgroundQueriesCancelledBlock:(id /* block */)a2 cancelBackgroundQueriesBlock:(id /* block */)a3 completion:(id /* block */)a4;
- (void)_queue_updateAirplayDisplayActiveFromNotification:(id)a0 allowingBackgroundQueries:(BOOL)a1 backgroundQueriesCancelledBlock:(id /* block */)a2 cancelBackgroundQueriesBlock:(id /* block */)a3 completion:(id /* block */)a4;
- (void)_queue_updateRingerMutedFromNotification:(id)a0 allowingBackgroundQueries:(BOOL)a1 backgroundQueriesCancelledBlock:(id /* block */)a2 cancelBackgroundQueriesBlock:(id /* block */)a3 completion:(id /* block */)a4;
@end