/// <summary>
/// Finish the stream
/// </summary>
/// <param name="bitstream"></param>
public override void WriteFooter(Bitstream bitstream)
{
if (Options.HasFlag(OptionFlags.DumpState))
{
WriteLine();
}
Finish(bitstream);
// insert the bitlength of the compressed portion
bitLength = bitstream.Length - whereToInsertBitlength;
var lengthBitstream = new Bitstream();
UniversalCodec.Lomont.EncodeLomont1(lengthBitstream, bitLength, 8, -1);
bitstream.InsertStream(whereToInsertBitlength, lengthBitstream);
//Console.WriteLine($"Arith encode bitsize {bitLength} at {whereToInsertBitlength} final {bitstream.Length}");
}