@class AVCaptureInput, NSString; @interface AVCaptureInputPortInternal : NSObject { AVCaptureInput *input; NSString *mediaType; struct opaqueCMFormatDescription { } *formatDescription; struct OpaqueCMClock { } *clock; BOOL enabled; int changeSeed; NSString *sourceID; NSString *sourceDeviceType; long long sourceDevicePosition; } - (id)init; - (void)dealloc; @end