Used with functions like g_mime_filter_best_encoding() and g_mime_object_encode() as the 'constraint' argument. These values provide a means of letting the filter know what the encoding constraints are for the stream.
The stream may contain any binary data.
The stream data must fit within the 7bit ASCII range.
The stream data may have bytes with the high bit set, but no null bytes.
Used with functions like g_mime_filter_best_encoding() and g_mime_object_encode() as the 'constraint' argument. These values provide a means of letting the filter know what the encoding constraints are for the stream.