Getstream

getstream is a little, very CPU efficient tool for streaming a whole DVB-S transponder to the network as multicast (one multicast group per channel). The latest versions also support DVB-C/T, SAP-Announcements and Streaming via HTTP.

homepage is http://silicon-verl.de/home/flo/projects/streaming/

There is a modified version that additionally supports DVB-T and some more features at http://www.mulder.franken.de/getstream-poempel/.