oxframe - extract frames from ogg or webm videos

dependencies:
    liboggz     git clone git://git.xiph.org/liboggz.git
    liboggplay  git clone git://git.xiph.org/liboggplay.git
    libtheora   apt-get install libtheora-dev
    libvpx      get debs from 
                    https://launchpad.net/~chromium-daily/+archive/ppa
                or compile from
                    git clone git://review.webmproject.org/libvpx.git
    libnestegg  git clone http://github.com/kinetiknz/nestegg.git