Method and apparatus for MPEG-2 program ID re-mapping for multiplexing several programs into a single transport stream

摘要

A system and method for re-mapping the Packet Identifier (PID)'s for a set of MPEG-2 single program streams prior to multiplexing onto one multi-program transport stream. The system eliminates any ambiguity when generating the multiplexed transport stream in 10 order to avoid PID conflicts when multiplexing several single programs containing non-unique PID values. The system includes a mechanism to assign new PID values, in such a way that it ensures that all new PID's are unique for the multiplexed transport stream. Furthermore, it performs this re-mapping in real-time as the packets are being transmitted over the multi-program transport stream.