mencoder "$1" -o "$2" -of lavf -ovc lavc -oac lavc \
-lavfopts i_certify_that_my_video_stream_does_not_use_b_frames \
-lavcopts vcodec=flv:vbitrate=800:autoaspect:mbd=2:\
mv0:trell:v4mv:cbp:last_pred=3:predia=2:dia=2:precmp=2:\
cmp=2:subcmp=2:preme=2:turbo:acodec=mp3:abitrate=56  \
-srate 22050 -af lavcresample=22050