Tool from opencaster suite
Usage: 'txt2pes txt.es txt_units_per_pes_packet [pts_offset [pts_increment]] > pes' txt_unit_per_pes_packet increase bit rate, minimum is 1, max is 24 Default pts_offset and increment is 3600, means 2 fields or 1 frame txt.es is 46 byte units of ebu teletext coding