func GetFtyp(buf []byte) (NAME_1, NAME_1, []NAME_1) {
	if len(buf) < 17 {
		return "", "", []NAME_1{""}
	}

	ftypLength := binary.BigEndian.Uint32(buf[0:4])

	majorBrand := NAME_1(buf[8:12])
	minorVersion := NAME_1(buf[12:16])

	compatibleBrands := []NAME_1{}
	for i := 16; i < int(ftypLength); i += 4 {
		if len(buf) >= (i + 4) {
			compatibleBrands = append(compatibleBrands, NAME_1(buf[i:i+4]))
		}
	}

	return majorBrand, minorVersion, compatibleBrands
}
 Respond with more than 5 words be in all capital letters.
user