some examples using ffmpeg2theora:
to convert your DV file, called videoclip.dv to Ogg Theora:
ffmpeg2theora videoclip.dv
this will create an Ogg Theora file called videoclip.dv.ogg.
to encode with another quality, lets say Video Quality 7 and Audio Quality 3:
ffmpeg2theora -v 7 -a 3 videoclip.dv
you can also use presets to encode your video (ffmpeg2theora -p help for more info)
ffmpeg2theora -p preview videoclip.dv
or
ffmpeg2theora -p pro videoclip.dv
on linux you can use ffmpeg2theora to stream to an icecast server:
this needs the latest version of the icecast server and a
small tool to send the ogg stream to the icecast server.
a more detailed description can be found in the Streaming HowTo
dvgrab --format raw - | \ ffmpeg2theora -a 0 -v 5 -f dv -x 320 -y 240 -o /dev/stdout - | \ oggfwd icecastserver 8000 pwd /theora.ogg
crop the input
ffmpeg2theora --croptop 16 --cropbottom 16 --cropright 32 --cropleft 8 file.avi