#! /bin/sh

if [ -z "$1" ]; then
   echo "Usage: $0 aid [options]"
   exit 1
fi

aid="$1"
shift

mencoder -ovc copy -oac mp3lame -aid "$aid" -o _tmp.avi "$@" &&
mplayer -dumpaudio -dumpfile a"$aid".mp3 _tmp.avi && rm _tmp.avi &&
exec avimerge -o output2.avi -i output.avi -p a"$aid".mp3