selecting one or more transport packets of said one or more transport streams for {HEAD ~ output} in {TAIL ~ a remultiplexed transport stream}, 
selecting one or more transport packets of said one or more transport streams for { HEAD ~ output } in { TAIL ~ a remultiplexed transport stream } ,
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH