makedvd

#!/bin/bash
# makedvd
# make dvd
version="1.0"

scriptdir=`dirname "$0"`
. "$scriptdir/mmfunctions" || { echo "Missing '$scriptdir/mmfunctions'. Exiting." ; exit 1 ;};

cleanup(){
	log -a "Process aborted"
	exit 1
}

trap cleanup SIGHUP SIGINT SIGTERM


usage(){
    echo
	echo "$(basename $0) ${version}"
	echo "This script may be run interactively by running it with no arguments or may be used with the following options."
	echo "Usage: $(basename $0) [ -m mediaid ] [ -f sourcefile ] [ -v dvd_label_prefix ]"
	echo "  -m mediaid"
	echo "  -f sourcefile"
	echo "  -v dvdlabelprefix"
	echo "  -h display this help"
	echo
	exit
}

# command-line options to set mediaid and original variables
OPTIND=1
while getopts ":hm:f:v:" opt; do
	case "$opt" in
		h) usage ;;
		m) mediaid="$OPTARG";;
		f) input="$OPTARG" ; once="y" ;;
		v) DVDLABELPREFIX="$OPTARG";;
		*) echo "bad option -$OPTARG" ; usage ;;
		:) echo "Option -$OPTARG requires an argument" ; exit 1 ;;
	esac
done

shift $(( ${OPTIND} - 1 ))
check_dependencies ffmpeg dvdauthor mkisofs

[ "$#" = 0 -a ! "$input" ] && { ask_input ; once="y" ;};

while [ "$*" != ""  -o "$once" = "y" ] ; do
	once="n"

	[ "$#" != 0 ] && input="$1"
	[ -d "$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" ;};
	find_input "$input"

	filename=`basename "$sourcefile"`
	mediaid=`basename "$input" | cut -d. -f1`
	
log -b

	isooutput="$outputdir/${mediaid%.*}.iso"
	[ -s "$isooutput" ] && { report -wt "WARNING $isooutput already exists, skipping transcode" ; exit 1 ;};
	mkdir -p "$outputdir"
	get_height "$sourcefile"
	get_width "$sourcefile"
	get_dar "$sourcefile"

	darratio=`echo "scale=3 ; $dar" | bc`
	[ `echo "scale=5 ; $darratio > 1.5" | bc -l` = 1 ] && { aspect="16/9" ; dvdaspect="16:9" ;};
	[ `echo "scale=5 ; $darratio > 1.5" | bc -l` = 1 ] || { aspect="4/3" ; dvdaspect="4:3" ;};

	get_maxdvdbitrate "$sourcefile"
	middleoptions="-r:v ntsc -c:v mpeg2video -c:a ac3 -f dvd -s 720x480 -pix_fmt yuv420p -g 18 -b:v $MAXDVDBITRATE -maxrate 9000k -minrate 0 -bufsize 1835008 -packetsize 2048 -muxrate 10080000 -b:a 448000 -ar 48000 "
	if  [ "$height" -eq "486" -a "$width" -eq "720" ] ; then
		middleoptions+=" -vf \"crop=720:480:0:4,setdar=${aspect}\" -aspect $aspect "
	elif  [ "$height" -eq "480" -a "$width" -eq "720" ] ; then
		middleoptions+=" -vf \"setdar=${aspect}\" -aspect $aspect "
	elif  [ "$height" -eq "512" -a "$width" -eq "720" ] ; then
		middleoptions+=" -vf \"crop=720:480:0:32,setdar=${aspect}\" -aspect $aspect "
	else
		middleoptions+=" -vf \"scale=720:480:interl=1,setdar=${aspect}\" -aspect $aspect "
	fi
	inputoptions+=" -y"
	if [ "$logdir" != "" ] ; then
		mkdir -p "$logdir"
		export FFREPORT="file=${logdir}/%p_%t_$(basename $0)_${version}.txt"
		inputoptions+=" -report"
	fi
	report -dt "Transcoding to DVD compliant mpeg2."
	dvdffmpegcommand="ffmpeg $inputoptions -i \"$sourcefile\" $middleoptions \"$outputdir/${mediaid%.*}.mpeg\""
	report -dt "Running: $dvdffmpegcommand"
	eval "$dvdffmpegcommand"
	export VIDEO_FORMAT=NTSC
	# chapters every 5 minutes, dvdauthor will ignore chapter markers greater than duration
	report -dt "Making DVD VIDEO_TS folder."
	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"
	dvdauthor_err="$?"
	if [ "$dvdauthor_err" -gt "0" ] ; then
		report -wt "ERROR dvdauthor reported error code $dvdauthor_err. Please review $outputdir/${mediaid%.*}/"
		exit "$dvdauthor_err"
	else
		rm "$outputdir/${mediaid%.*}.mpeg"
	fi
	dvdauthor -T -o "$outputdir/${mediaid%.*}/"
	volname=`echo "${DVDLABELPREFIX}${mediaid}"`
	report -dt "Making DVD image file."
	mkisofs -f -dvd-video -udf -V "${volname:0:32}" -v -v -o "$outputdir/${mediaid%.*}.iso"  "$outputdir/${mediaid%.*}" 2> "${logdir}/mkisofs_$(get_iso8601_c)_$(basename $0)_${version}.txt"
	mkisofs_err="$?"
	if [ "$mkisofs_err" -gt "0" ] ; then
		report -wt "ERROR mkisofs reported error code $mkisofs_err. Please review $outputdir/${mediaid%.*}.iso."
		exit "$mkisofs_err"
	else
	rm -r "$outputdir/${mediaid%.*}/"
	fi
	report -dt "STATUS ${mediaid%.*}.iso is generated."
	shift
done
log -e