mencoder mf://*.jpg -mf fps=25 -o test.avi -ovc lavc -lavcopts vcodec=msmpeg4v2:vbitrate=800

for i in $( ls ); do mencoder mf://$i/*.jpg -mf fps=6 -o $i.avi -ovc lavc -lavcopts vcodec=mjpeg; done

# to glue movies
cat movie1 >> movie2
mencoder -forceidx -nosound -ovc copy -o hex-lapse1.avi hex-lapse.avi


# or!
mencoder -forceidx -ovc copy -oac copy -o file.avi p1.avi p2.avi

# cut
mencoder -ss 00:38 -endpos 56 -ovc lavc -lavcopts vcodec=mjpeg 20.avi -o /home/danja/docs/net.flux/m0vz/msk-arbat-walk.avi