[FFmpeg-user] Rawvideo Stream

[Yafes Sahin]

Hi Everybody, 

i am on a windows machine, attached to it a decklink SDI Card, where i get a uyvy422(TV) signal over dshow. To see where latency happens, i wanted to stream raw without encoding this feed.  I used the command:
ffmpeg -f dshow -i video="Blackmagic WDM Capture"  -r 25 -codec copy -an -f mpegts udp://192.168.0.10:1234
However is this command supposed to work? with FFPLAY i get "circular buffer" error, mPlay "MPEG: FATAL: EOF while searching for sequence header."
removing "-f mpegts" ffmpeg complains about wrong output "Unable to find a suitable output format for"
So what is the right way of streaming raw-input from a camera or any raw-video source.
Regards