export declare const createFtyp: ({ majorBrand, minorBrand, compatibleBrands, }: {
    majorBrand: string;
    minorBrand: number;
    compatibleBrands: string[];
}) => Uint8Array<ArrayBufferLike>;
export declare const createIsoBaseMediaFtyp: ({ majorBrand, minorBrand, compatibleBrands, }: {
    majorBrand: string;
    minorBrand: number;
    compatibleBrands: string[];
}) => Uint8Array<ArrayBufferLike>;