@class NSMutableDictionary, AVWeakReference, AVSampleBufferVideoRenderer, NSMutableArray, NSObject;
@protocol OS_dispatch_queue;
@interface AVSampleBufferRenderSynchronizerInternal : NSObject {
AVWeakReference *weakObserver;
struct OpaqueCMTimebase { } *readOnlyTimebase;
NSObject<OS_dispatch_queue> *rateQueue;
float rate;
struct { long long value; int timescale; unsigned int flags; long long epoch; } mostRecentlySetTime;
NSObject<OS_dispatch_queue> *rendererListQueue;
NSMutableArray *renderers;
NSMutableArray *timedRenderRemovals;
NSObject<OS_dispatch_queue> *figSynchronizerAccessQueue;
struct OpaqueFigSampleBufferRenderSynchronizer { } *figSynchronizer;
AVSampleBufferVideoRenderer *rendererTrackedBySTS;
NSMutableDictionary *STSLabelSinks;
}
@end