YukinoAi/ld-process.sh

## ld-process.sh
#/bin/bash
#exit script if an error occurs
set -e

if [ -z "$1" ] || [ "$1" = "--help" ] || [ "$1" = "-h" ] ; then \
echo Syntax: $0 inputFile.ldf cavOrClv ntscOrPal combFilter digitalOrAnalogAudio length startAt white ntscj
echo Examples:
echo $0 /home/user/Downloads/myFile.lds clv ntsc
echo $0 myFile.lds cav ntsc ntsc3d digital 1000 500 true true
echo $0 myFile.ldf clv pal pal2d none 0 500
echo There must not be any spaces in "myFile.ldf".
exit 0
fi

#default settings
cavOrClv="cav"
#cav,clv
ntscOrPal="ntsc"
#ntsc, pal
defaultNtscCombFilter="ntsc2d"
defaultPalCombFilter="pal2d"
#ntsc1d, ntsc2d, ntsc3d, pal2d, transform2d, transform3d
lumaNoiseReduction="0.0"
#0.0,0.5,(1.0),1.5,2.0...
chromaNoiseReduction="0.0"
#(0.0),0.5,1.0,1.5,2.0...
videoCodec="ffv1"
#ffv1, ffvhuff, huffyuv, libx264, libx264rgb, libx265, libvpx-vp9, vp9_vaapi, h264_nvenc, hevc_nvenc, utvideo
outputColorspace="444"
#444, 422, 420; used in yuv420p, yuv422p, yuv444p
defaultDigitalOrAnalogAudioMode="digital"
#digital,analog, none
audioCodec="flac"
#flac,aac, libopus, ac3
defaultLength=0
#0,200,500,1000,any non-negative integer; "0" means no length limit=process entire disc, Also valid: full, all, entire, fullLength
defaultStartAt=500
#0,200,500,1000,any non-negative integer; "0" means 0, This is the amount of frames to skip. This might need to be a float instead of integer.
defaultSeekFrame=0
#0, 1; Use 0 for CLV, Use 1 for CAV. Instead of using seek and to start at the first frame, sometimes --start may need to be adjusted manually instead.
#This might be better off as true/false is there are no exceptions.
defaultWhite=true
#true,false
defaultNtscjSetting=false
#true,false
defaultWibbleSetting=false
#true,false
cpuThreads="16"
#suggested:4,8
cleanupFilesAfterMkv=false
#true,false


miscLdDecodeSettings=" --start 500"
#--NTSCJ, for CLV use seek=0 for , or for CAV use --seek 1
miscLdChromaDecodeSettings=""
#--white

#static variables, #this is for NTSC, what are the formats for PAL?
rawVideoFormatNtsc="rawvideo -pix_fmt gray16le -s 910x263 -r 60000/1001"
rawVideoFormatPal="rawvideo -pix_fmt gray16le -s 1135x313 -r 50000/1000"
#should resolution not instead be "910x525"? "[ld-decode outputs] 910x525 16-bit values [for NTSC]"
#https://github.com/happycube/ld-decode/wiki/File-formats
#263*2=500+13+13=526
rawVideoFormatAfterChromaNtsc="rawvideo -pix_fmt rgb48 -s 760x488 -r 30000/1001"
rawVideoFormatAfterChromaPal="rawvideo -pix_fmt rgb48 -s ------- -r 25000/1000"
#signed pcm 16-bit stereo little endian "s16le" @ 44.1 kHz, is PAL digital or PAL/NTSC analog audio different?
rawAudioFormat="s16le -ac 2 -r 44.1k"


#function definitions, these have to be defined prior to being invoked :-(
#usage: myVar=$(makeLowercaseFunct $myVar)
function makeLowercaseFunct() { echo $1 | tr '[:upper:]' '[:lower:]'
}

#ldprocess.sh inputFile.ldf cavOrClv ntscOrPal combFilter digitalOrAnalogAudio length startAt seekFrame white #choose to include seek frame or not
#ldprocess.sh inputFile.ldf cavOrClv ntscOrPal combFilter digitalOrAnalogAudio length startAt white ntscj #always include seek frame
#ldprocess.sh 1)inputFile.ldf 2)cavOrClv 3)ntscOrPal 4)combFilter 5)digitalOrAnalogAudio 6)length 7)startAt 8)white 9)ntscj
#not included: wibble, 8)seekFrame
#ldprocess.sh cav ntsc ntsc3d

#read input and assign variables
#debug code
echo User first entered:\"$1\"
echo second variable \"$2\"
echo third variable \"$3\"
echo fourth variable \"$4\"
echo fifth variable \"$5\"
echo sixth variable \"$6\"
echo seventh variable \"$7\"
echo eighth variable \"$8\"
echo ninth variable \"$9\"

#read input
#"-z" means "if the variable is empty", might want to make this output clearer to the user at some point
if [ ! -z "$1" ] ; then rawFileName=$1 ; echo Using file: \"$1\" ; else echo Error. Please specify a file. ; exit ; fi
if [ ! -z "$2" ] ; then cavOrClv=$2 ; echo Decoding as RF capture of \"$2\" disc. ; else echo Error. Please specify an LD format, cav or clv. ; exit ; fi
if [ ! -z "$3" ] ; then ntscOrPal=$3 ; echo Decoding disc as \"$3\". ; else echo Error. Please specify television standard, ntsc or pal. ; exit ; fi
if [ ! -z "$4" ] ; then combFilter=$4 ; echo Using CombFilter \"$4\" ; combFilterSpecified=true ; else echo No comb filter specified. ; combFilterSpecified=false ; fi
if [ ! -z "$5" ] ; then digitalOrAnalogAudio=$5 ; echo Audio mode:\"$5\". ; \
else echo Audio mode not specified. Defaulting to \"$defaultDigitalOrAnalogAudioMode\". ; digitalOrAnalogAudio=$defaultDigitalOrAnalogAudioMode ; fi
if [ ! -z "$6" ] ; then length=$6 ; echo Length=\"$6\". ; else echo Length not specified. Using length=\"$defaultLength\". ; length=$defaultLength ; fi
if [ ! -z "$7" ] ; then startAt=$7 ; echo Starting at frame=\"$7\". ; startAtSpecified=true ; \
else echo Seek amount not specified. ; startAt=$defaultStartAt ; startAtSpecified=false ; fi
#Using default of \"$defaultStartAt\". If a startAt was not specified, should there be a default startAt regardless?
#if [ ! -z "$8" ] ; then seekFrame=$8 ; echo Seeking to frame=\"$8\". ; seekFrameSpecified=true; else echo Seek frame not specified. Using default for CAV/CLV. ; seekFrameSpecified=false; fi
#same as above. If not specified, should this be included?, currently *always* being included as derivative value of $2 cavOrClv.
if [ ! -z "$8" ] ; then white=$8 ; echo "Use White point at 75%? "\"$8\". ; else echo 75% white point not specified. Defaulting to \"$defaultWhite\". ; white=$defaultWhite ; fi
if [ ! -z "$9" ] ; then ntscj=$9 ; echo "NTSCJ disc? "\"$9\". ; else echo NTSCJ not specified. Defaulting to \"$defaultNtscjSetting\". ; ntscj=$defaultNtscjSetting ; fi

#Validate input
#ldprocess.sh 1)inputFile.ldf 2)cavOrClv 3)ntscOrPal 4)combFilter 5)digitalOrAnalogAudio 6)length 7)startAt 8)white 9)ntscj
#-e means "if exists"
if [ ! -e "$rawFileName"  ] ; then echo "Error: \"$rawFileName\" does not exist." ; exit 1 ; fi

#cavOrClv#cav,clv
#need to figure out how to pipe this properly at some point
#echo $cavOrClv | tr '[:upper:]' '[:lower:]' > temp.txt
#myvar2=$(cat temp.txt)
#rm temp.txt
#edit, moved to function, output gets assigned to variable via command substitution
cavOrClv=$(makeLowercaseFunct $cavOrClv)
if [ ! "$cavOrClv" = "cav" ] ; then \
    if [ ! "$cavOrClv" = "clv" ] ; then \
    echo Error: "cavOrClv" value is not "cav" or "clv"
    echo Value:\"$cavOrClv\"
    exit 1
fi fi

#ntscOrPal#ntsc, pal
ntscOrPal=$(makeLowercaseFunct $ntscOrPal)
if [ ! "$ntscOrPal" = "ntsc" ] && [ ! "ntscOrPal" = "pal" ] ; then \
    echo Error: "ntscOrPal" value is not "ntsc" or "pal"
    echo Value:\"$ntscOrPal\".
    exit 1
fi

#combFilter#ntsc1d, ntsc2d, ntsc3d, pal2d, transform2d, transform3d
combFilter=$(makeLowercaseFunct $combFilter)
if [ "$combFilterSpecified" = "false" ] ; then \
    if [ ! "$ntscOrPal" = "ntsc" ] ; then \
    combFilter=$defaultNtscCombFilter ; else \
    combFilter=$defaultPalCombFilter
fi fi
if [ ! "$combFilter" = "ntsc1d" ] && [ ! "$combFilter" = "ntsc2d" ] && [ ! "$combFilter" = "ntsc3d" ] && \
[ ! "$combFilter" = "pal2d" ] && [ ! "$combFilter" = "transform2d" ] && [ ! "$combFilter" = "transform3d" ] ; then \
    echo Error: Selected "combFilter" is not valid.
    echo Valid values: ntsc1d, ntsc2d, ntsc3d, pal2d, transform2d, transform3d
    echo Actual Value:\"$ntscOrPal\"
    exit 1
fi

#digitalOrAnalogAudio#digital,analog, none
digitalOrAnalogAudio=$(makeLowercaseFunct $digitalOrAnalogAudio)
if [ ! "$digitalOrAnalogAudio" = "digital" ] && [ ! "$digitalOrAnalogAudio" = "analog" ] && [ ! "$digitalOrAnalogAudio" = "none" ] && [ ! "$digitalOrAnalogAudio" = "no" ] ; then \
    echo Error: "digitalOrAnalogAudio" value is not "digital" or "analog" or "none"
    echo Value:\"$digitalOrAnalogAudio\"
    exit 1
fi
if [ "$digitalOrAnalogAudio" = "no" ] ; then digitalOrAnalogAudio=none ; fi

#length#0, 1-1000+, full, all; maybe check if zero or an integer?
length=$(makeLowercaseFunct $length)
#check if integer, if an integer, assume it is valid, if not an integer, check for valid values, if integer, check if 0 and set to all
case $length in
    ''|*[!0-9]*) lengthIsInteger=false ;;
    *) lengthIsInteger=true ;;
esac
if [ ! "$lengthIsInteger" = "true" ] ; then \
    if [ ! "$length" = "full" ] && [ ! "$length" = "all" ] && [ ! "$length" = "entire" ] && [ ! "$length" = "fullLength" ] ; then \
    echo Error: Selected length is not valid.
    echo Valid values: Any non-negative integer 0, 200, 500, 100 and "full", "all", "entire", "fullLength".
    echo Selected length:\"$length\".
    exit 1
fi fi

#check if integer, if an integer, assume it is valid, if not an integer, check for valid values, if integer, check if 0 and set to all
#Technically float values are valid so may not be able to check if a valid value was entered at all. 2.3=string in bash
startAt=$(makeLowercaseFunct $startAt)
case $startAt in
    ''|*[!0-9]*) startAtIsInteger=false ;;
    *) startAtIsInteger=true ;;
esac
if [ "$startAtIsInteger" = "false" ] ; then \
echo Error: Selected start/skip amount is not valid.
echo Entered skip amount \"$startAt\".
exit 1
fi

##seekFrame, 0 or 1; 0 for CLV, 1 for CAV, must be an integer
#if [ "$seekFrameSpecified"="false" ]
#then , currently using $2 cavOrClv to determine this instead as mandatory always included option, code below is for optionally including it if specified (as hardcoded values)
#if [ "$seekFrameSpecified" = "true" ] ; then \
#if [ "$cavOrClv" = "clv" ] ; then miscLdDecodeSettings="$miscLdDecodeSettings ""--seek 0" ; else \
#miscLdDecodeSettings="$miscLdDecodeSettings ""--seek 1" ; fi fi

#white, boolean
white=$(makeLowercaseFunct $white)
if [ ! "$white" = "true" ] ; then \
    if [ ! "$white" = "false" ] ; then \
    echo Error: "white" value is not true or false.
    echo Value:\"$white\"
    exit 1
fi fi

#ntscj, boolean
if [ -z $ntscj ] ; then ntscj=$defaultNtscjSetting ; fi
ntscj=$(makeLowercaseFunct $ntscj)
if [ ! "$ntscj" = "true" ] ; then \
    if [ ! "$ntscj" = "false" ] ; then \
    echo Error: "ntscj" value is not true or false.
    echo Value:\"$ntscj\"
    exit 1
fi fi

#wibble, boolean
if [ -z $wibble ] ; then wibble=$defaultWibbleSetting ; fi
wibble=$(makeLowercaseFunct $wibble)
if [ ! "$wibble" = "true" ] ; then \
    if [ ! "$wibble" = "false" ] ; then \
    echo Error: "wibble" value is not true or false.
    echo Value:\"$wibble\".
    exit 1
fi fi


#calculate variable names
#might want to remove the .tbc extension from the rawFileName
fileNameNoExt=$(basename -s .lds $rawFileName) #myfile.ldf->myfile.ldf; myfile.lds->myfile
fileNameNoExt=$(basename -s .ldf $fileNameNoExt) #myfile.ldf->myfile; myfile->myfile
tbcOutputFileName="$fileNameNoExt".raw
#.tbc gets appended to tbcOutputFileName and it becomes tbcFileName
tbcFileName="$fileNameNoExt".raw.tbc
audioTrackName="$fileNameNoExt".raw.pcm
efmFileName="$fileNameNoExt".raw.efm
ldsJson="$fileNameNoExt".raw.tbc.json
#VDIjson="$LDSjson".vdi.json #wrong name
#if --output-json is not specified when using "ld-process-vbi", then a "...tbc.json.bup" file is created as a backup and the original json is overwritten
ldsJsonBackup="$ldsJson".bup
chaptersFile="$fileNameNoExt".txt
#chapters file is also known as "ffmetadata"
outputFileName="$fileNameNoExt".mkv


#determine additional variables
#use seek=0 for CLV, or --seek 1 for CAV, append to miscLdDecodeSettings
#miscLdDecodeSettings="$miscLdDecodeSettings "--seek
if [ "$cavOrClv" = "clv" ] ; then miscLdDecodeSettings="$miscLdDecodeSettings ""--seek 0"
else miscLdDecodeSettings="$miscLdDecodeSettings ""--seek 1" ; fi

if [ "$ntscOrPal" = "ntsc" ] ; then \
    rawVideoFormat=$rawVideoFormatNtsc
    rawVideoFormatAfterChroma=$rawVideoFormatAfterChromaNtsc
else \
    rawVideoFormat=$rawVideoFormatPal
    rawVideoFormatAfterChroma=$rawVideoFormatAfterChromaPal
fi

#append length to ld-decode settings if it was specified
#if [ "$length" eq "0" ] ; then miscLdDecodeSettings=$miscLdDecodeSettings" --length $length" ; fi
if [ "$lengthIsInteger" = "true" ] ; then \
    if [ "$length" = "0" ] ; then \
    length=fullLength #pointless
    #else if an non-zero integer, append --length $length to ld-decode
    else miscLdDecodeSettings="$miscLdDecodeSettings ""--length $length"
fi fi

if [ ! "$startAtIsInteger" = "false" ] ; then \
    if [ "$startAtSpecified" = "true" ] ; then \
    miscLdDecodeSettings="$miscLdDecodeSettings ""--start $startAt"
fi fi

#miscLdChromaDecodeSettings --white, #white, boolean
if [ "$white" = "true" ] ; then miscLdChromaDecodeSettings="$miscLdChromaDecodeSettings ""--white" ; fi

#miscLdDecodeSettings --NTSCJ, #ntscj, boolean
if [ "$ntscj" = "true" ] ; then miscLdDecodeSettings="$miscLdDecodeSettings ""--NTSCJ" ; fi

#debug code, print out all variables

#debug code, exit early
#exit 0


#might want to also check if ld-decode is invokable first
#also, might want to skip running ld-decode, ld-process-vbi and ls-export-metadata if $tbcFileName already exists
#extract out 1) .tbc raw video, 2) .wav audio, 3) .efm data and 4) .json metadata

if [ -e "$tbcFileName" ] ; then \
echo \"$tbcFileName\" already exists. Will reuse existing .tbc file.
echo Delete/move/rename .tbc file if reuse is not desired.
else \
echo Starting LD-Decode....
echo ld-decode "$miscLdDecodeSettings" -t $cpuThreads --$ntscOrPal "$rawFileName" "$tbcOutputFileName"
ld-decode $miscLdDecodeSettings -t $cpuThreads --$ntscOrPal "$rawFileName" "$tbcOutputFileName"

#update vbi data
echo Updating VBI metadata...
echo ld-process-vbi --threads $cpuThreads --input-json "$ldsJson" "$tbcFileName"
ld-process-vbi --threads $cpuThreads --input-json "$ldsJson" "$tbcFileName"

echo Extracting ffmetadata chapters...
#extract out LD chapters (if present), how to check if present? how to exclude from next command if not present?
ld-export-metadata "$ldsJson" --ffmetadata "$chaptersFile"

#merge pieces and encode a/v losslessly
#ffmpeg -f $rawVideoFormat - | \ #this is used...when?
#\
fi

echo ld-dropout-correct --intra --overcorrect --input-json "$ldsJson" --output-json /dev/null --quiet "$tbcFileName" - \| \\
echo ld-chroma-decoder -t $cpuThreads --decoder $combFilter --luma-nr $lumaNoiseReduction --chroma-nr $chromaNoiseReduction --input-json "$ldsJson" -q $miscLdChromaDecodeSettings  - - \| \\
echo ffmpeg -f $rawVideoFormatAfterChroma -i - -f $rawAudioFormat -i "$audioTrackName" -i "$chaptersFile" -c:v $videoCodec -pix_fmt yuv"$outputColorspace"p -y -c:a $audioCodec "$outputFileName"

#debug code
#echo end
#exit 0

echo Performing magic on black and white signal...
ld-dropout-correct --intra --overcorrect --input-json "$ldsJson" --output-json /dev/null --quiet "$tbcFileName" - | \
\
ld-chroma-decoder -t $cpuThreads --decoder $combFilter --luma-nr $lumaNoiseReduction --chroma-nr $chromaNoiseReduction --input-json "$ldsJson" -q $miscLdChromaDecodeSettings  - - | \
\
ffmpeg -f $rawVideoFormatAfterChroma -i - -f $rawAudioFormat -i "$audioTrackName" -i "$chaptersFile" -c:v $videoCodec -pix_fmt yuv"$outputColorspace"p -y -c:a $audioCodec "$outputFileName"
#-aspect 4:3
#for flac use "-compression_level 5", higher is more compression, max is 12, default is 5, consider using 11
	#/bin/bash
	#exit script if an error occurs
	set -e

	if [ -z "$1" ] \|\| [ "$1" = "--help" ] \|\| [ "$1" = "-h" ] ; then \
	echo Syntax: $0 inputFile.ldf cavOrClv ntscOrPal combFilter digitalOrAnalogAudio length startAt white ntscj
	echo Examples:
	echo $0 /home/user/Downloads/myFile.lds clv ntsc
	echo $0 myFile.lds cav ntsc ntsc3d digital 1000 500 true true
	echo $0 myFile.ldf clv pal pal2d none 0 500
	echo There must not be any spaces in "myFile.ldf".
	exit 0
	fi

	#default settings
	cavOrClv="cav"
	#cav,clv
	ntscOrPal="ntsc"
	#ntsc, pal
	defaultNtscCombFilter="ntsc2d"
	defaultPalCombFilter="pal2d"
	#ntsc1d, ntsc2d, ntsc3d, pal2d, transform2d, transform3d
	lumaNoiseReduction="0.0"
	#0.0,0.5,(1.0),1.5,2.0...
	chromaNoiseReduction="0.0"
	#(0.0),0.5,1.0,1.5,2.0...
	videoCodec="ffv1"
	#ffv1, ffvhuff, huffyuv, libx264, libx264rgb, libx265, libvpx-vp9, vp9_vaapi, h264_nvenc, hevc_nvenc, utvideo
	outputColorspace="444"
	#444, 422, 420; used in yuv420p, yuv422p, yuv444p
	defaultDigitalOrAnalogAudioMode="digital"
	#digital,analog, none
	audioCodec="flac"
	#flac,aac, libopus, ac3
	defaultLength=0
	#0,200,500,1000,any non-negative integer; "0" means no length limit=process entire disc, Also valid: full, all, entire, fullLength
	defaultStartAt=500
	#0,200,500,1000,any non-negative integer; "0" means 0, This is the amount of frames to skip. This might need to be a float instead of integer.
	defaultSeekFrame=0
	#0, 1; Use 0 for CLV, Use 1 for CAV. Instead of using seek and to start at the first frame, sometimes --start may need to be adjusted manually instead.
	#This might be better off as true/false is there are no exceptions.
	defaultWhite=true
	#true,false
	defaultNtscjSetting=false
	#true,false
	defaultWibbleSetting=false
	#true,false
	cpuThreads="16"
	#suggested:4,8
	cleanupFilesAfterMkv=false
	#true,false


	miscLdDecodeSettings=" --start 500"
	#--NTSCJ, for CLV use seek=0 for , or for CAV use --seek 1
	miscLdChromaDecodeSettings=""
	#--white

	#static variables, #this is for NTSC, what are the formats for PAL?
	rawVideoFormatNtsc="rawvideo -pix_fmt gray16le -s 910x263 -r 60000/1001"
	rawVideoFormatPal="rawvideo -pix_fmt gray16le -s 1135x313 -r 50000/1000"
	#should resolution not instead be "910x525"? "[ld-decode outputs] 910x525 16-bit values [for NTSC]"
	#https://github.com/happycube/ld-decode/wiki/File-formats
	#263*2=500+13+13=526
	rawVideoFormatAfterChromaNtsc="rawvideo -pix_fmt rgb48 -s 760x488 -r 30000/1001"
	rawVideoFormatAfterChromaPal="rawvideo -pix_fmt rgb48 -s ------- -r 25000/1000"
	#signed pcm 16-bit stereo little endian "s16le" @ 44.1 kHz, is PAL digital or PAL/NTSC analog audio different?
	rawAudioFormat="s16le -ac 2 -r 44.1k"


	#function definitions, these have to be defined prior to being invoked :-(
	#usage: myVar=$(makeLowercaseFunct $myVar)
	function makeLowercaseFunct() { echo $1 \| tr '[:upper:]' '[:lower:]'
	}

	#ldprocess.sh inputFile.ldf cavOrClv ntscOrPal combFilter digitalOrAnalogAudio length startAt seekFrame white #choose to include seek frame or not
	#ldprocess.sh inputFile.ldf cavOrClv ntscOrPal combFilter digitalOrAnalogAudio length startAt white ntscj #always include seek frame
	#ldprocess.sh 1)inputFile.ldf 2)cavOrClv 3)ntscOrPal 4)combFilter 5)digitalOrAnalogAudio 6)length 7)startAt 8)white 9)ntscj
	#not included: wibble, 8)seekFrame
	#ldprocess.sh cav ntsc ntsc3d

	#read input and assign variables
	#debug code
	echo User first entered:\"$1\"
	echo second variable \"$2\"
	echo third variable \"$3\"
	echo fourth variable \"$4\"
	echo fifth variable \"$5\"
	echo sixth variable \"$6\"
	echo seventh variable \"$7\"
	echo eighth variable \"$8\"
	echo ninth variable \"$9\"

	#read input
	#"-z" means "if the variable is empty", might want to make this output clearer to the user at some point
	if [ ! -z "$1" ] ; then rawFileName=$1 ; echo Using file: \"$1\" ; else echo Error. Please specify a file. ; exit ; fi
	if [ ! -z "$2" ] ; then cavOrClv=$2 ; echo Decoding as RF capture of \"$2\" disc. ; else echo Error. Please specify an LD format, cav or clv. ; exit ; fi
	if [ ! -z "$3" ] ; then ntscOrPal=$3 ; echo Decoding disc as \"$3\". ; else echo Error. Please specify television standard, ntsc or pal. ; exit ; fi
	if [ ! -z "$4" ] ; then combFilter=$4 ; echo Using CombFilter \"$4\" ; combFilterSpecified=true ; else echo No comb filter specified. ; combFilterSpecified=false ; fi
	if [ ! -z "$5" ] ; then digitalOrAnalogAudio=$5 ; echo Audio mode:\"$5\". ; \
	else echo Audio mode not specified. Defaulting to \"$defaultDigitalOrAnalogAudioMode\". ; digitalOrAnalogAudio=$defaultDigitalOrAnalogAudioMode ; fi
	if [ ! -z "$6" ] ; then length=$6 ; echo Length=\"$6\". ; else echo Length not specified. Using length=\"$defaultLength\". ; length=$defaultLength ; fi
	if [ ! -z "$7" ] ; then startAt=$7 ; echo Starting at frame=\"$7\". ; startAtSpecified=true ; \
	else echo Seek amount not specified. ; startAt=$defaultStartAt ; startAtSpecified=false ; fi
	#Using default of \"$defaultStartAt\". If a startAt was not specified, should there be a default startAt regardless?
	#if [ ! -z "$8" ] ; then seekFrame=$8 ; echo Seeking to frame=\"$8\". ; seekFrameSpecified=true; else echo Seek frame not specified. Using default for CAV/CLV. ; seekFrameSpecified=false; fi
	#same as above. If not specified, should this be included?, currently always being included as derivative value of $2 cavOrClv.
	if [ ! -z "$8" ] ; then white=$8 ; echo "Use White point at 75%? "\"$8\". ; else echo 75% white point not specified. Defaulting to \"$defaultWhite\". ; white=$defaultWhite ; fi
	if [ ! -z "$9" ] ; then ntscj=$9 ; echo "NTSCJ disc? "\"$9\". ; else echo NTSCJ not specified. Defaulting to \"$defaultNtscjSetting\". ; ntscj=$defaultNtscjSetting ; fi

	#Validate input
	#ldprocess.sh 1)inputFile.ldf 2)cavOrClv 3)ntscOrPal 4)combFilter 5)digitalOrAnalogAudio 6)length 7)startAt 8)white 9)ntscj
	#-e means "if exists"
	if [ ! -e "$rawFileName" ] ; then echo "Error: \"$rawFileName\" does not exist." ; exit 1 ; fi

	#cavOrClv#cav,clv
	#need to figure out how to pipe this properly at some point
	#echo $cavOrClv \| tr '[:upper:]' '[:lower:]' > temp.txt
	#myvar2=$(cat temp.txt)
	#rm temp.txt
	#edit, moved to function, output gets assigned to variable via command substitution
	cavOrClv=$(makeLowercaseFunct $cavOrClv)
	if [ ! "$cavOrClv" = "cav" ] ; then \
	if [ ! "$cavOrClv" = "clv" ] ; then \
	echo Error: "cavOrClv" value is not "cav" or "clv"
	echo Value:\"$cavOrClv\"
	exit 1
	fi fi

	#ntscOrPal#ntsc, pal
	ntscOrPal=$(makeLowercaseFunct $ntscOrPal)
	if [ ! "$ntscOrPal" = "ntsc" ] && [ ! "ntscOrPal" = "pal" ] ; then \
	echo Error: "ntscOrPal" value is not "ntsc" or "pal"
	echo Value:\"$ntscOrPal\".
	exit 1
	fi

	#combFilter#ntsc1d, ntsc2d, ntsc3d, pal2d, transform2d, transform3d
	combFilter=$(makeLowercaseFunct $combFilter)
	if [ "$combFilterSpecified" = "false" ] ; then \
	if [ ! "$ntscOrPal" = "ntsc" ] ; then \
	combFilter=$defaultNtscCombFilter ; else \
	combFilter=$defaultPalCombFilter
	fi fi
	if [ ! "$combFilter" = "ntsc1d" ] && [ ! "$combFilter" = "ntsc2d" ] && [ ! "$combFilter" = "ntsc3d" ] && \
	[ ! "$combFilter" = "pal2d" ] && [ ! "$combFilter" = "transform2d" ] && [ ! "$combFilter" = "transform3d" ] ; then \
	echo Error: Selected "combFilter" is not valid.
	echo Valid values: ntsc1d, ntsc2d, ntsc3d, pal2d, transform2d, transform3d
	echo Actual Value:\"$ntscOrPal\"
	exit 1
	fi

	#digitalOrAnalogAudio#digital,analog, none
	digitalOrAnalogAudio=$(makeLowercaseFunct $digitalOrAnalogAudio)
	if [ ! "$digitalOrAnalogAudio" = "digital" ] && [ ! "$digitalOrAnalogAudio" = "analog" ] && [ ! "$digitalOrAnalogAudio" = "none" ] && [ ! "$digitalOrAnalogAudio" = "no" ] ; then \
	echo Error: "digitalOrAnalogAudio" value is not "digital" or "analog" or "none"
	echo Value:\"$digitalOrAnalogAudio\"
	exit 1
	fi
	if [ "$digitalOrAnalogAudio" = "no" ] ; then digitalOrAnalogAudio=none ; fi

	#length#0, 1-1000+, full, all; maybe check if zero or an integer?
	length=$(makeLowercaseFunct $length)
	#check if integer, if an integer, assume it is valid, if not an integer, check for valid values, if integer, check if 0 and set to all
	case $length in
	''\|[!0-9]) lengthIsInteger=false ;;
	*) lengthIsInteger=true ;;
	esac
	if [ ! "$lengthIsInteger" = "true" ] ; then \
	if [ ! "$length" = "full" ] && [ ! "$length" = "all" ] && [ ! "$length" = "entire" ] && [ ! "$length" = "fullLength" ] ; then \
	echo Error: Selected length is not valid.
	echo Valid values: Any non-negative integer 0, 200, 500, 100 and "full", "all", "entire", "fullLength".
	echo Selected length:\"$length\".
	exit 1
	fi fi

	#check if integer, if an integer, assume it is valid, if not an integer, check for valid values, if integer, check if 0 and set to all
	#Technically float values are valid so may not be able to check if a valid value was entered at all. 2.3=string in bash
	startAt=$(makeLowercaseFunct $startAt)
	case $startAt in
	''\|[!0-9]) startAtIsInteger=false ;;
	*) startAtIsInteger=true ;;
	esac
	if [ "$startAtIsInteger" = "false" ] ; then \
	echo Error: Selected start/skip amount is not valid.
	echo Entered skip amount \"$startAt\".
	exit 1
	fi

	##seekFrame, 0 or 1; 0 for CLV, 1 for CAV, must be an integer
	#if [ "$seekFrameSpecified"="false" ]
	#then , currently using $2 cavOrClv to determine this instead as mandatory always included option, code below is for optionally including it if specified (as hardcoded values)
	#if [ "$seekFrameSpecified" = "true" ] ; then \
	#if [ "$cavOrClv" = "clv" ] ; then miscLdDecodeSettings="$miscLdDecodeSettings ""--seek 0" ; else \
	#miscLdDecodeSettings="$miscLdDecodeSettings ""--seek 1" ; fi fi

	#white, boolean
	white=$(makeLowercaseFunct $white)
	if [ ! "$white" = "true" ] ; then \
	if [ ! "$white" = "false" ] ; then \
	echo Error: "white" value is not true or false.
	echo Value:\"$white\"
	exit 1
	fi fi

	#ntscj, boolean
	if [ -z $ntscj ] ; then ntscj=$defaultNtscjSetting ; fi
	ntscj=$(makeLowercaseFunct $ntscj)
	if [ ! "$ntscj" = "true" ] ; then \
	if [ ! "$ntscj" = "false" ] ; then \
	echo Error: "ntscj" value is not true or false.
	echo Value:\"$ntscj\"
	exit 1
	fi fi

	#wibble, boolean
	if [ -z $wibble ] ; then wibble=$defaultWibbleSetting ; fi
	wibble=$(makeLowercaseFunct $wibble)
	if [ ! "$wibble" = "true" ] ; then \
	if [ ! "$wibble" = "false" ] ; then \
	echo Error: "wibble" value is not true or false.
	echo Value:\"$wibble\".
	exit 1
	fi fi


	#calculate variable names
	#might want to remove the .tbc extension from the rawFileName
	fileNameNoExt=$(basename -s .lds $rawFileName) #myfile.ldf->myfile.ldf; myfile.lds->myfile
	fileNameNoExt=$(basename -s .ldf $fileNameNoExt) #myfile.ldf->myfile; myfile->myfile
	tbcOutputFileName="$fileNameNoExt".raw
	#.tbc gets appended to tbcOutputFileName and it becomes tbcFileName
	tbcFileName="$fileNameNoExt".raw.tbc
	audioTrackName="$fileNameNoExt".raw.pcm
	efmFileName="$fileNameNoExt".raw.efm
	ldsJson="$fileNameNoExt".raw.tbc.json
	#VDIjson="$LDSjson".vdi.json #wrong name
	#if --output-json is not specified when using "ld-process-vbi", then a "...tbc.json.bup" file is created as a backup and the original json is overwritten
	ldsJsonBackup="$ldsJson".bup
	chaptersFile="$fileNameNoExt".txt
	#chapters file is also known as "ffmetadata"
	outputFileName="$fileNameNoExt".mkv


	#determine additional variables
	#use seek=0 for CLV, or --seek 1 for CAV, append to miscLdDecodeSettings
	#miscLdDecodeSettings="$miscLdDecodeSettings "--seek
	if [ "$cavOrClv" = "clv" ] ; then miscLdDecodeSettings="$miscLdDecodeSettings ""--seek 0"
	else miscLdDecodeSettings="$miscLdDecodeSettings ""--seek 1" ; fi

	if [ "$ntscOrPal" = "ntsc" ] ; then \
	rawVideoFormat=$rawVideoFormatNtsc
	rawVideoFormatAfterChroma=$rawVideoFormatAfterChromaNtsc
	else \
	rawVideoFormat=$rawVideoFormatPal
	rawVideoFormatAfterChroma=$rawVideoFormatAfterChromaPal
	fi

	#append length to ld-decode settings if it was specified
	#if [ "$length" eq "0" ] ; then miscLdDecodeSettings=$miscLdDecodeSettings" --length $length" ; fi
	if [ "$lengthIsInteger" = "true" ] ; then \
	if [ "$length" = "0" ] ; then \
	length=fullLength #pointless
	#else if an non-zero integer, append --length $length to ld-decode
	else miscLdDecodeSettings="$miscLdDecodeSettings ""--length $length"
	fi fi

	if [ ! "$startAtIsInteger" = "false" ] ; then \
	if [ "$startAtSpecified" = "true" ] ; then \
	miscLdDecodeSettings="$miscLdDecodeSettings ""--start $startAt"
	fi fi

	#miscLdChromaDecodeSettings --white, #white, boolean
	if [ "$white" = "true" ] ; then miscLdChromaDecodeSettings="$miscLdChromaDecodeSettings ""--white" ; fi

	#miscLdDecodeSettings --NTSCJ, #ntscj, boolean
	if [ "$ntscj" = "true" ] ; then miscLdDecodeSettings="$miscLdDecodeSettings ""--NTSCJ" ; fi

	#debug code, print out all variables

	#debug code, exit early
	#exit 0


	#might want to also check if ld-decode is invokable first
	#also, might want to skip running ld-decode, ld-process-vbi and ls-export-metadata if $tbcFileName already exists
	#extract out 1) .tbc raw video, 2) .wav audio, 3) .efm data and 4) .json metadata

	if [ -e "$tbcFileName" ] ; then \
	echo \"$tbcFileName\" already exists. Will reuse existing .tbc file.
	echo Delete/move/rename .tbc file if reuse is not desired.
	else \
	echo Starting LD-Decode....
	echo ld-decode "$miscLdDecodeSettings" -t $cpuThreads --$ntscOrPal "$rawFileName" "$tbcOutputFileName"
	ld-decode $miscLdDecodeSettings -t $cpuThreads --$ntscOrPal "$rawFileName" "$tbcOutputFileName"

	#update vbi data
	echo Updating VBI metadata...
	echo ld-process-vbi --threads $cpuThreads --input-json "$ldsJson" "$tbcFileName"
	ld-process-vbi --threads $cpuThreads --input-json "$ldsJson" "$tbcFileName"

	echo Extracting ffmetadata chapters...
	#extract out LD chapters (if present), how to check if present? how to exclude from next command if not present?
	ld-export-metadata "$ldsJson" --ffmetadata "$chaptersFile"

	#merge pieces and encode a/v losslessly
	#ffmpeg -f $rawVideoFormat - \| \ #this is used...when?
	#\
	fi

	echo ld-dropout-correct --intra --overcorrect --input-json "$ldsJson" --output-json /dev/null --quiet "$tbcFileName" - \\| \\
	echo ld-chroma-decoder -t $cpuThreads --decoder $combFilter --luma-nr $lumaNoiseReduction --chroma-nr $chromaNoiseReduction --input-json "$ldsJson" -q $miscLdChromaDecodeSettings - - \\| \\
	echo ffmpeg -f $rawVideoFormatAfterChroma -i - -f $rawAudioFormat -i "$audioTrackName" -i "$chaptersFile" -c:v $videoCodec -pix_fmt yuv"$outputColorspace"p -y -c:a $audioCodec "$outputFileName"

	#debug code
	#echo end
	#exit 0

	echo Performing magic on black and white signal...
	ld-dropout-correct --intra --overcorrect --input-json "$ldsJson" --output-json /dev/null --quiet "$tbcFileName" - \| \
	\
	ld-chroma-decoder -t $cpuThreads --decoder $combFilter --luma-nr $lumaNoiseReduction --chroma-nr $chromaNoiseReduction --input-json "$ldsJson" -q $miscLdChromaDecodeSettings - - \| \
	\
	ffmpeg -f $rawVideoFormatAfterChroma -i - -f $rawAudioFormat -i "$audioTrackName" -i "$chaptersFile" -c:v $videoCodec -pix_fmt yuv"$outputColorspace"p -y -c:a $audioCodec "$outputFileName"
	#-aspect 4:3
	#for flac use "-compression_level 5", higher is more compression, max is 12, default is 5, consider using 11