makedvd

#!/bin/bash
# makedvd
version="1.0"
scriptdir=$(dirname $(which "$0"))
. "$scriptdir/mmfunctions" || { echo "Missing '$scriptdir/mmfunctions'. Exiting." ; exit 1 ;};
dependencies=(ffmpeg dvdauthor mkisofs)
_initialize_make

usage(){
    echo
    echo "$(basename ${0}) ${version}"
    echo "This application will create a DVD .iso file from a video file or package input with the following options."
    echo "Dependencies: ${dependencies[@]}"
    echo "Usage: $(basename $0) [ -v dvd_label_prefix ] fileorpackage1 [ fileorpackage2 ...]"
    echo "  -v dvdlabelprefix (optional)"
    echo "  -d directory ( directory to deliver the resulting file to )"
    echo "  -o directory ( directory to write the resulting file to )"
    echo "  -n (dry-run mode, show the commands that would be run but don't do anything)"
    echo "  -e emailaddress ( send an email about the delivery, only valid if -d is used )"
    echo "  -E emailaddress ( send an email about process outcome )"
    echo "  -h ( display this help )"
    echo
    exit
}
[ "${#}" = 0 ] && usage

# command-line options to set mediaid and original variables
OPTIND=1
while getopts ":v:o:d:e:E:nh" opt ; do
    case "${opt}" in
        v) DVDLABELPREFIX="$OPTARG";;
        o) outputdir_forced="$OPTARG" && _check_outputdir_forced ;;
        d) deliverdir="$OPTARG" && check_deliverdir ;;
        e) emailaddress_delivery="$OPTARG" && check_emailaddress "${emailaddress_delivery}" ;;
        E) emailaddress_outcome="$OPTARG" && check_emailaddress "${emailaddress_outcome}" ;;
        n) DRYRUN=true;;
        h) usage ;;
        *) echo "bad option -$OPTARG" ; usage ;;
        :) echo "Option -$OPTARG requires an argument" ; exit 1 ;;
    esac
done
shift $(( ${OPTIND} - 1 ))

while [ "${*}" != "" ] ; do
    # get context about the input
    input="$1"
    if [ -z "${outputdir_forced}" ] ; then
        [ -d "${input}" ] && { outputdir="${input}/objects/access/dvd" && logdir="${input}/metadata/submissionDocumentation/logs" ;};
        [ -f "${input}" ] && { outputdir=$(dirname "${input}")"/access/dvd" && logdir="$(dirname "${input}")/access/logs" ;};
        [ ! "${outputdir}" ] && { outputdir="${input}/objects/access/dvd" && logdir="${input}/metadata/submissionDocumentation/logs" ;};
    else
        outputdir="${outputdir_forced}"
        logdir="${outputdir}/logs"
    fi
    _find_input "${input}"
    mediaid=$(basename "${input}" | cut -d. -f1)

    # set up output
    _log -b
    output="${outputdir}/${mediaid%.*}.iso"
    [ -s "${output}" ] && { report -wt "WARNING ${output} already exists, skipping transcode" ; shift ; continue ;};
    _run mkdir -p "${outputdir}"

    # get information on the input
    get_height "${sourcefile}"
    get_width "${sourcefile}"
    get_dar "${sourcefile}"
    darratio=$(echo "scale=3 ; $dar" | bc)
    if [ $(echo "scale=5 ; $darratio > 1.5" | bc -l) = 1 ] ;then
        aspect="16/9"
        dvdaspect="16:9"
    else
        aspect="4/3"
        dvdaspect="4:3"
    fi
    get_maxdvdbitrate "$sourcefile"

    # clear local arrays
    unset inputoptions
    unset middleoptions

    # encoding options
    middleoptions+=(-r:v ntsc)
    middleoptions+=(-c:v mpeg2video)
    middleoptions+=(-c:a ac3)
    middleoptions+=(-f dvd)
    middleoptions+=(-qscale:v 2)
    middleoptions+=(-mbd rd)
    middleoptions+=(-s 720x480)
    middleoptions+=(-pix_fmt yuv420p)
    middleoptions+=(-g 18)
    middleoptions+=(-b:v $MAXDVDBITRATE)
    middleoptions+=(-bt 400k)
    middleoptions+=(-maxrate $MAXDVDBITRATE)
    middleoptions+=(-minrate 0)
    middleoptions+=(-bufsize 3600k)
    middleoptions+=(-packetsize 2048)
    middleoptions+=(-muxrate 10080000)
    middleoptions+=(-lmin 1)
    middleoptions+=(-lmax 200000)
    middleoptions+=(-b:a 448000)
    middleoptions+=(-ar 48000)
    if  [[ "${height}" == 486 && "${width}" == 720 ]] ; then
        middleoptions+=(-vf "fieldorder=bff,crop=720:480:0:4,setdar=${aspect}" -aspect ${aspect})
    elif  [[ "{$height}" == 480 && "${width}" == 720 ]] ; then
        middleoptions+=(-vf "fieldorder=bff,setdar=${aspect}" -aspect ${aspect})
    elif  [[ "${height}" == 512 && "${width}" == 720 ]] ; then
        middleoptions+=(-vf "fieldorder=bff,crop=720:480:0:32,setdar=${aspect}" -aspect ${aspect})
    else
        middleoptions+=(-vf "fieldorder=bff,scale=720:480:interl=1,setdar=${aspect}" -aspect ${aspect})
    fi
    inputoptions+=" -y"
    _prep_ffmpeg_log
    # making the initial mpeg2 for the dvd
    _run ffmpeg ${inputoptions[@]} -i "${sourcefile}" ${middleoptions[@]} "${outputdir}/${mediaid%.*}.mpeg"
    # Making DVD VIDEO_TS folder, chapters every 5 minutes, dvdauthor will ignore chapter markers greater than duration
    export VIDEO_FORMAT=NTSC
    _run_critical dvdauthor --title -v "ntsc+${dvdaspect}" -a ac3+en -c 0,5:00,10:00,15:00,20:00,25:00,30:00,35:00,40:00,45:00,50:00,55:00,1:00:00,1:05:00,1:10:00,1:15:00,1:20:00,1:25:00,1:30:00,1:35:00,1:40:00,1:45:00,1:50:00,1:55:00,2:00:00,2:05:00,2:10:00,2:15:00,2:20:00,2:25:00,2:30:00,2:35:00,2:40:00,2:45:00,2:50:00,2:55:00,3:00:00,3:05:00,3:10:00,3:15:00,3:20:00,3:25:00,3:30:00,3:35:00,3:40:00,3:45:00,3:50:00,3:55:00 -f "${outputdir}/${mediaid%.*}.mpeg" -o "${outputdir}/${mediaid%.*}/" 2> "${logdir}/dvdauthor_$(get_iso8601_c)_$(basename $0)_${version}.txt"
    _run rm "${outputdir}/${mediaid%.*}.mpeg"
    _run_critical dvdauthor -T -o "${outputdir}/${mediaid%.*}/"
    # Making DVD image file.
    volname=$(echo "${DVDLABELPREFIX}${mediaid}")
    _run_critical mkisofs -f -dvd-video -udf -V "${volname:0:32}" -v -v -o "${output}"  "${outputdir}/${mediaid%.*}" 2> "${logdir}/mkisofs_$(get_iso8601_c)_$(basename $0)_${version}.txt"
    _run rm -r "${outputdir}/${mediaid%.*}/"
    echo
    _summarize_make
    _deliver_output
    shift
    _log -e
done