public FileTypeBox(FourCC majorBrand, uint minorVersion, FourCC[] compatibleBrands)
: this()
{
MajorBrand = majorBrand;
MinorVersion = minorVersion;
foreach(FourCC fourCC in compatibleBrands) _CompatibleBrands.Add(fourCC);
}
public BoxType(FourCC fourcc)
{
_FourCC = fourcc;
byte[] uuidBytes = new byte[16];
Buffer.BlockCopy(_FourCC.GetBytes(), 0, uuidBytes, 0, 4);
Buffer.BlockCopy(BASE_UUID, 4, uuidBytes, 4, 12);
_UserType = new Guid(uuidBytes);
}
public BoxType(FourCC fourcc)
{
_FourCC = fourcc;
byte[] uuidBytes = new byte[16];
Buffer.BlockCopy(_FourCC.GetBytes(), 0, uuidBytes, 0, 4);
Buffer.BlockCopy(BASE_UUID, 4, uuidBytes, 4, 12);
_UserType = new Guid(uuidBytes);
}
public BoxType(Guid uuid)
{
_UserType = uuid;
bool isBaseType = true;
byte[] uuidBytes = uuid.ToByteArray();
for (int i = 4; i < 16; i++) if (uuidBytes[i] != BASE_UUID[i]) isBaseType=false;
if (isBaseType) _FourCC = new FourCC(BitConverter.ToUInt32(uuidBytes, 0).NetworkToHostOrder());
else _FourCC = UUID_FOURCC;
}
protected override void LoadFromStream(Stream stream)
{
base.LoadFromStream(stream);
MajorBrand = new FourCC(stream.ReadBEUInt32());
MinorVersion = stream.ReadBEUInt32();
ulong remainingBytes = EffectiveSize - CalculateSize();
ulong numBrands = remainingBytes / 4;
for (ulong i = 0; i < numBrands ; i++)
{
_CompatibleBrands.Add(new FourCC(stream.ReadBEUInt32()));
}
}
public BoxType(Guid uuid)
{
_UserType = uuid;
bool isBaseType = true;
byte[] uuidBytes = uuid.ToByteArray();
for (int i = 4; i < 16; i++)
{
if (uuidBytes[i] != BASE_UUID[i])
{
isBaseType = false;
}
}
if (isBaseType)
{
_FourCC = new FourCC(BitConverter.ToUInt32(uuidBytes, 0).NetworkToHostOrder());
}
else
{
_FourCC = UUID_FOURCC;
}
}
public override string ToString()
{
return(FourCC == UUID_FOURCC?string.Format("uuid({0})", UserType.ToString()) : FourCC.ToString());
}
public override string ToString()
{
return(FourCC == UUID_FOURCC ? $"uuid({UserType})" : FourCC.ToString());
}
public bool IsCompatibleWith(FourCC brand)
{
if (MajorBrand == brand) return true;
if (_CompatibleBrands.Contains(brand)) return true;
return false;
}
