ImageMagick.ExifWriter.GetLength C# (CSharp) Method

    private uint GetLength(IEnumerable<int> indexes)
    {
      uint length = 0;

      foreach (int index in indexes)
      {
        uint valueLength = (uint)_Values[index].Length;

        if (valueLength > 4)
          length += 12 + valueLength;
        else
          length += 12;
      }

      return length;
    }