public Structure (string name, params object[] fields) : this (name)
{
  Set (fields);
}

public object Get (string field) {
  GLib.Value v;

  v = GetValue (field);
  return Gst.Value.GetValue (v);
}

public void Set (string field, object value) {
  SetValue (field, Gst.Value.CreateValue (value));
}

public void Set (params object[] fields) {
  int i, length = fields.Length;

  if (length % 2 != 0)
    throw new ArgumentException ();

  for (i = 0; i < length; i += 2) {
    SetValue (fields[i] as string, Gst.Value.CreateValue (fields[i+1]));
  }
}

public object this [string field] {
  set {
    GLib.Value v;

    if (field == null)
      throw new ArgumentNullException ();

    v = Gst.Value.CreateValue (value);

    Set (field, value);
  }
  get {
    if (field == null)
      throw new ArgumentNullException ();

    return Get (field);
  }
}

public IEnumerable Fields {
  get {
    ArrayList fields = new ArrayList ();
    for (uint i = 0; i < Count; i++)
      fields.Add (NthFieldName (i));

    return fields;
  }
}

public static Structure NewFromString (string structure) {
  IntPtr raw_ret = gst_structure_from_string (structure, IntPtr.Zero);
  Gst.Structure ret = raw_ret == IntPtr.Zero ? null : (Gst.Structure) GLib.Opaque.GetOpaque (raw_ret, typeof (Gst.Structure), false);
  return ret;
}

[DllImport ("gstreamer-0.10.dll") ]
private static extern IntPtr gst_structure_from_string (string structure, IntPtr end);