This page has a counterpart, [[Theora]], for Ogg Theora video. Many of the techniques on [[Theora]] can be used to also encode WebM.

== ffmpeg ==

{{{
ffmpeg -i input.avi \
-vpre libvpx-720p \
-quality realtime \ # best, good, or realtime; can also use qmin/qmax
-threads 3 \
-acodec libvorbis -ab 128k -ar 44100 \
-f webm -y output.webm
}}}

See:

 * http://groups.google.com/a/webmproject.org/group/webm-discuss/browse_thread/thread/0c90767a55fb42b4
 * http://ffmpeg.org/ffmpeg.html#libvpx

== MEncoder ==

{{{
mencoder -ovc lavc -oac lavc -of lavf -lavfopts format=webm -lavcopts threads=4:acodec=vorbis:vcodec=libvpx -ffourcc VP80 input.avi -o output.webm
}}}

Confirmed working with r31918. More information available with [[https://groups.google.com/a/webmproject.org/group/apps-devel/browse_thread/thread/218ca4a238ecf60a/9d4f0808ed8e230e?pli=1|this mailing list thread]].