# =========================================================================
# File: dvd-backup_with-subtitles.txt
#
# Copyright (c) 2005 and onwards, Josh Glover <jmglov@jmglov.net>
#
# LICENCE:
#
#   This work is licensed under the Creative Commons Attribution-ShareAlike
#   License. To view a copy of this license, visit:
#
#   http://creativecommons.org/licenses/by-sa/1.0/
#
#   or send a letter to:
#
#   Creative Commons
#   559 Nathan Abbott Way
#   Stanford, California 94305, USA.
#
# DESCRIPTION:
#
#   Captain's Log for __DESCRIPTION__.
#
# USAGE:
#
#   Read the Captain's Log, pasting bits into your terminal once you
#   have verified that all paths, settings and so on are right for your
#   environment, *OR*, copy the Captain's Log somewhere on your box,
#   edit it to fit your environment, and run it (possibly as root):
#
#   bash dvd-backup_with-subtitles.txt
#
# MODIFICATIONS:
#
#   Josh Glover <jmglov@jmglov.net> (2005/02/12): Initial revision
# =========================================================================


# 0. Configuration

export DVD_DEV=/dev/dvd
export DVD_MNT=/mnt/dvd
export BURN_DIR=/scratch/burndvd
export MASTER_DIR=/scratch/masterdvd
export RIP_DIR=/scratch/ripdvd
export SHRINK_DIR=/scratch/shrinkdvd


# 1. Make all of the output directories

for i in "${BURN_DIR}" "${MASTER_DIR}" "${RIP_DIR}" "${SHRINK_DIR}"; do
  mkdir "$i"
done


# 2. Copy the VOB files

mount "${DVD_MNT}"
vobcopy -i "${DVD_MNT}" -o "${RIP_DIR}" -n 1 -l -v
export vob=`basename "${RIP_DIR}"/*.vob`


# 3. Shrink the video track [optional]. If your VOB file is less than 4.8G,
#    skip ahead to step 5, substituting the name of your VOB file for the
#    shrunk movie file (.mpg file).

export m2v="${vob}.m2v"
export ac3="${vob}.ac3"
export mpg="${vob}.mpg"
tcextract -i "${RIP_DIR}/${vob}" -d 2 -t vob -x mpeg2    >"${RIP_DIR}/${m2v}"
tcextract -i "${RIP_DIR}/${vob}" -d 2 -t vob -x ac3 -a 0 >"${RIP_DIR}/${ac3}"
spuunmux -o "${SHRINK_DIR}/subtitles" -s 0 -v 1 "${RIP_DIR}/${vob}"
export sub="${vob}.SUBTITLED.mpg"
rm "${RIP_DIR}/${vob}"
export m2vsize=`ls -s "${RIP_DIR}/${m2v}" | awk '{ print $1 }'`
export ac3size=`ls -s "${RIP_DIR}/${ac3}" | awk '{ print $1 }'`
export subsize=`du "${SHRINK_DIR}/" | tail -1 | awk '{ print $1 }'`
export factor=`perl -e "print ((((${m2vsize} * 1024) / (4600000000 - (${ac3size} * 1024) - (${subsize} * 1024))) * 1.04) + 0.01);"`
tcrequant -i "${RIP_DIR}/${m2v}" -o "${SHRINK_DIR}/${m2v}" -f ${factor} -d 2
rm "${RIP_DIR}/${m2v}"
mplex -f 8 -S 0 -v 1 -o "${SHRINK_DIR}/${mpg}" \
  "${SHRINK_DIR}/${m2v}" "${RIP_DIR}/${ac3}"
rm "${SHRINK_DIR}/${m2v}" "${RIP_DIR}/${ac3}"
spumux -m dvd -s 0 -v 1 -P "${SHRINK_DIR}/subtitles.xml" \
  <"${SHRINK_DIR}/${mpg}" >"${SHRINK_DIR}/${sub}"
rm "${SHRINK_DIR}/${mpg}"


# 4. Author the DVD

dvdauthor -o "${MASTER_DIR}/" "${SHRINK_DIR}/${sub}"
dvdauthor -T -o "${MASTER_DIR}/"
rm "${SHRINK_DIR}/${sub}"


# 5. Burn the DVD

export iso="${vob}.iso"
export title=`echo "${vob}" | sed -e 's/\.vob$//'`
mkisofs -dvd-video -V "${title}" -o "${BURN_DIR}/${iso}" "${MASTER_DIR}"
sudo cdrecord-ProDVD -v dev=ATAPI:0,0,0 speed=4 -dao -eject "${BURN_DIR}/${iso}"