@interface AVCompositionTrackFormatDescriptionReplacement : NSObject <NSSecureCoding> { struct opaqueCMFormatDescription { } *_originalFormatDescription; struct opaqueCMFormatDescription { } *_replacementFormatDescription; } @property (class, readonly) BOOL supportsSecureCoding; @property (readonly) struct opaqueCMFormatDescription { } *originalFormatDescription; @property (readonly) struct opaqueCMFormatDescription { } *replacementFormatDescription; - (void)dealloc; - (void)encodeWithCoder:(id)a0; - (id)initWithCoder:(id)a0; - (id)initWithOriginalFormatDescription:(struct opaqueCMFormatDescription { } *)a0 andReplacementFormatDescription:(struct opaqueCMFormatDescription { } *)a1; @end