The libdvbpsi is part of the VideoLAN project.
The libdvbpsi is a library so it can also be used with extra programs that need DVB and PSI decoders and generators.
libdvbpsi makes VLC media player or other projects capable of demultiplexing a satellite DVB stream. The library aims at making it easy to decode PSI tables (such as PAT, PMT etc.) present in a TS/DVB stream.