[Ffmpeg-devel] Problem streaming ts over udp

[Fernando Pescador]

Hi,
Im trying to stream a ts file (with only a MPEG2 video elementary stream) 
over UDP using a command line as:
ffmpeg -i file.ts -vcodec copy -f udp udp://234.5.5.5:1234

The resulting message says:  "Unknow input or output format: udp"


If I use rtp instead of udp:
ffmpeg -i file.ts -vcodec copy -f rtp rtp://234.5.5.5:1234

The file is served to the multicast address but not in ts format (I've use 
ethereal to analize it).

So, Is it possible to stream using directly udp? and is it possible 
streaming a ts file?
Thanks in advance
Fernando Pescador