minidlna-transcode hardcode subtitles

#!/bin/sh
# this scripts has some AV sync issues, I leave this to readers to resolve

SOURCE=$1
STARTPOSITION=$2
DURATION=$3

rm -f /tmp/transcodefifo
mkfifo /tmp/transcodefifo
# the mencoder command for encoding to DVD format is taken from:
# http://www.mplayerhq.hu/DOCS/HTML/en/menc-feat-vcd-dvd.html
mencoder -really-quiet -ss $STARTPOSITION -endpos $DURATION -autosub -sub-fuzziness 1 \
  -oac lavc -ovc lavc -of mpeg -mpegopts format=dvd:tsaf \
  -vf scale=720:576,harddup -srate 48000 -af lavcresample=48000 \
  -lavcopts vcodec=mpeg2video:vrc_buf_size=1835:vrc_maxrate=9800:vbitrate=5000:keyint=15:vstrict=0:acodec=ac3:abitrate=192:aspect=16/9 -ofps 25 \
  $SOURCE -o /tmp/transcodefifo &
PID=$!

# catch signals and cleanup
trap "{ kill -9 $PID ; killall -s 9 cat ; rm /tmp/transcodefifo ; }" SIGHUP SIGINT SIGTERM SIGKILL

cat /tmp/transcodefifo
kill -9 $PID
rm /tmp/transcodefifo