Video Preview Preview for a film can be created this way:
oggResize -s256x144 -d64000 -f1 -p24 -A Play-256x144.png bigBuckBunny.ogv bigbuckbunnyVorschau.ogv
Or for Elephants Dream:
oggResize -s256x144 -d64000 -f1 -p24 -A Play-256x144.png ElephantsDream.ogv elephantsdreamVorschau.ogv
Legal Notice:
© copyright 2006, Blender Foundation / Netherlands Media Art Institute / www.elephantsdream.org / www.bigbuckbunny.org