private static string ReadComment(Core.Utility.BinaryReader reader, MetadataFlags flags, ref int bytesRead)
{
string comment = null;
if (flags.HasFlag(MetadataFlags.Comment))
{
comment = ReadNullTerminatedString(reader, ref bytesRead);
}
return(comment);
}
private static ushort ReadCrc16(Core.Utility.BinaryReader reader, MetadataFlags flags, ref int bytesRead)
{
ushort crc16 = 0;
if (flags.HasFlag(MetadataFlags.Crc16Present))
{
crc16 = reader.ReadUInt16();
bytesRead += sizeof(ushort);
}
return(crc16);
}
private static string ReadFileName(Core.Utility.BinaryReader reader, MetadataFlags flags, ref int bytesRead)
{
string name = null;
if (flags.HasFlag(MetadataFlags.FileName))
{
name = ReadNullTerminatedString(reader, ref bytesRead);
}
else
{
name = GetDefaultEntryName(reader.BaseStream);
}
return(name);
}
private static SubfieldId ReadExtraFields(Core.Utility.BinaryReader reader, MetadataFlags flags, ref int bytesRead)
{
var subfieldIdentifier = SubfieldId.None;
if (flags.HasFlag(MetadataFlags.ExtraFieldsPresent))
{
subfieldIdentifier = (SubfieldId)reader.ReadUInt16();
bytesRead += sizeof(SubfieldId);
var subfieldDataLength = reader.ReadUInt16(); // little-endian
bytesRead += sizeof(ushort);
reader.BaseStream.Seek(subfieldDataLength, SeekOrigin.Current); // just skip
}
return(subfieldIdentifier);
}