Add UDP Stream capabilities to ffmpeg consumer

Example :
ADD 1-0 FILE udp://127.0.0.1:48001
ADD 1-0 FILE udp://127.0.0.1:48001 -f mpegts -vcodec mpeg4 -acodec aac
-ar 44100 -ab 128000 -s 720x405 -b 1200000