Something

mencoder -tv driver=v4l2:width=720:height=480:norm=ntsc \
-fps 30000/1001 -endpos 15 \
-ovc x264 -x264encopts bitrate=700:bframes=1:\
threads=auto \
-oac faac -faacopts br=128:mpeg=4:object=2 -channels 2 -srate 48000 \
-of lavf -o /samba/test.mp4 tv://46