@class AVKeyPathDependencyManager, AVWeakReference, AVAssetWriterInputHelper, AVAssetWriterInputPassDescriptionResponder, NSObject;
@protocol OS_dispatch_queue;
@interface AVAssetWriterInputInternal : NSObject {
AVWeakReference *weakReference;
AVAssetWriterInputHelper *helper;
NSObject<OS_dispatch_queue> *helperQueue;
AVWeakReference *weakReferenceToAttachedAdaptor;
AVWeakReference *weakReferenceToAssetWriter;
AVKeyPathDependencyManager *keyPathDependencyManager;
long long numberOfAppendFailures;
BOOL markAsFinishedCalled;
NSObject<OS_dispatch_queue> *appendFailureReadWriteQueue;
AVAssetWriterInputPassDescriptionResponder *passDescriptionResponder;
}
@end