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