public static AACSMediaKeyBlock? DecodeAACSMediaKeyBlock(byte[] AACSMKBResponse)
{
if(AACSMKBResponse == null)
return null;
var decoded = new AACSMediaKeyBlock();
decoded.MediaKeyBlockPacks = new byte[AACSMKBResponse.Length - 4];
decoded.DataLength = BigEndianBitConverter.ToUInt16(AACSMKBResponse, 0);
decoded.Reserved = AACSMKBResponse[2];
decoded.TotalPacks = AACSMKBResponse[3];
Array.Copy(AACSMKBResponse, 4, decoded.MediaKeyBlockPacks, 0, AACSMKBResponse.Length - 4);
return decoded;
}
public static string PrettifyAACSMediaKeyBlock(AACSMediaKeyBlock? AACSMKBResponse)
{
if(AACSMKBResponse == null)
return null;
AACSMediaKeyBlock response = AACSMKBResponse.Value;
var sb = new StringBuilder();
#if DEBUG
if(response.Reserved != 0)
sb.AppendFormat("Reserved = 0x{0:X2}", response.Reserved).AppendLine();
#endif
sb.AppendFormat("Total number of media key blocks available to transfer {0}", response.TotalPacks).
AppendLine();
sb.AppendFormat("AACS Media Key Blocks in hex follows:");
sb.AppendLine(PrintHex.ByteArrayToHexArrayString(response.MediaKeyBlockPacks, 80));
return sb.ToString();
}