@interface AVSampleCursorInternal : NSObject { struct OpaqueFigSampleCursor { } *figSampleCursor; BOOL implementsGetDecodeTimeStamp; BOOL implementsGetDuration; BOOL implementsGetDependencyInfo; BOOL implementsTestReorderingBoundary; BOOL implementsCreateSampleBuffer; BOOL implementsCopyChunkDetails; BOOL implementsCopySampleLocation; BOOL implementsGetMPEG2FrameType; } @end