@class NSMapTable, AXMVisionEngine, NSObject; @protocol OS_dispatch_queue; @interface AXAVFoundationMediaDescriptionManager : NSObject { AXMVisionEngine *_engine; NSObject<OS_dispatch_queue> *_queue; NSMapTable *_queue_nodeToPlayerMap; } @property (readonly, nonatomic) BOOL isTappingMediaDescriptions; @property (readonly, nonatomic) BOOL isVoiceOverInTheTripleClickMenu; + (id)sharedManager; + (id)sharedManagerIfExists; - (id)init; - (void)observeValueForKeyPath:(id)a0 ofObject:(id)a1 change:(id)a2 context:(void *)a3; - (void).cxx_destruct; - (id)_queue_itemNodeForPlayer:(id)a0; - (BOOL)_shouldAttachLegibilityOutputToItem:(id)a0; - (BOOL)beginObservingPlayer:(id)a0; - (void)endObservingPlayer:(id)a0; @end