/// <summary>
/// Initializes a new instance of the <see cref="TagContainerV4"/> class.
/// </summary>
public TagContainerV4() : base(TagVersion.Id3V24)
{
m_Descriptor = new TagDescriptorV4();
}
private static byte[] GetExtendedHeaderV4(TagDescriptorV4 descriptor)
{
if (!descriptor.ExtendedHeader)
{
return new byte[0];
}
//
// Create a list with dummy bytes for length and flags...
//
var bytes = new List<byte> {0x00, 0x00, 0x00, 0x00, 0x01, 0x00};
byte flagByte = 0x00;
if (descriptor.UpdateTag)
{
flagByte |= 0x40;
bytes.Add(0x00);
}
if (descriptor.CrcDataPresent)
{
flagByte |= 0x20;
bytes.Add(0x05);
//TODO: Check byte array here...
bytes.AddRange(descriptor.Crc);
}
if (descriptor.RestrictionPresent)
{
flagByte |= 0x10;
bytes.Add(0x01);
bytes.Add(descriptor.Restriction);
}
bytes[5] = flagByte;
byte[] byteArray = bytes.ToArray();
List<int> bits = GetBitCoding(byteArray.Length);
var lengthBytes = new byte[4];
EncodeLength(bits, lengthBytes);
Array.Copy(lengthBytes, 0, byteArray, 0, 4);
return byteArray;
}
