Thank you for the answer. Unfortunately it doesn't work. I installed the gst plugin and edited an m3u playlist with the rtsp server address, but nothing happens on the dreambox when i launch it in the mediaplayer...
I'm looking for a way to read video contents using RTSP protocol, to set up a VoD server with VLC on a computer (using VLM tools) and start/pause/stop the streams using RTSP. Do you think it is possible to modify VLC Frontend to do this ? Or is there already a plugin doing this ?