[FFmpeg-user] Rawvideo Stream

Yafes Sahin yafes7 at yahoo.de
Wed Dec 31 04:16:16 CET 2014

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://
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.

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