#!/bin/bash

#BASIC CONSTANTS
MLV_DUMP="./mlv_dump" #Path to MLV_DUMP location.
DEPS="imagemagick dcraw ffmpeg" #Dependency package names (Debian). List with -K option.

#MODDABLE CONSTANTS
OUTDIR="$(pwd)"

HIGHLIGHT_MODE="0"
PROXY_SCALE="50%"
DEMO_MODE="1"
HQ_MOV=false
LQ_PROXY=false
DELETE_TIFF=false
GAMMA="1 1"
DEPTH="-4"
WHITE="-r 1 1 1 1"
LUT=""
isLUT=false


help () {
	echo -e "Usage:\n	\033[1m./convmlv.sh\033[0m [OPTIONS] \033[2mmlv_files\033[0m\n"
			
	echo -e "Info:\n	A script allowing you to convert .MLV files into TIFF + JPG (proxy) sequences and/or a Prores 4444 .mov,
	with an optional H.264 .mp4 preview. Many useful options such as gamma, highlight reconstruction, and bit depth are exposed.\n"

	echo -e "Dependencies:\n	-mlv_dump: For MLV --> DNG.\n	-dcraw: For DNG --> TIFF.\n	-ffmpeg: For .mov/mp4 creation.\n"


	echo -e "OPTIONS:"
	echo -e "	-o   OUTDIR - The path in which files will be placed (no space btwn -o and path).\n"
	echo -e "	-M   MLV_DUMP - The path to mlv_dump (no space btwn -M and path). Default is './mlv_dump'.\n"
	
	echo -e "	-H[0-9]   HIGHLIGHT_MODE - 3 to 9 does degrees of highlight reconstruction, 1 and 2 don't. 0 is default."
	echo -e "	  --> Use -H<number> (no space).\n"
	
	echo -e "	-s[00-99]%   PROXY_SCALE - the size, in %, of the proxy output."
	echo -e "	  --> Use -s<double-digit number>% (no space). 50% is default.\n"
	
	echo -e "	-m   HQ_MOV - Use to create a Prores 4444 file.\n"
	
	echo -e "	-p   LQ_MOV - Use to create a low quality H.264 mp4 from the proxies.\n"
	
	echo -e "	-D   DELETE_TIFF - Use to delete not only TMP, but also the TIF and proxy sequences."
	echo -e "	  --> Useful if all you want are video files.\n"
	
	echo -e "	-d   DEMO_MODE - DCraw demosaicing mode. Higher modes are slower. 1 is default."
	echo -e "	  --> Use -d<mode> (no space). 0: Bilinear. 1: VNG (default). 2: PPG. 3: AHD.\n"
	
	echo -e "	-K   Package Deps - Lists dependecies. Works with apt-get."
	echo -e "	  --> No operations will be done. Also, you must provide mlv_dump.\n"
	
	echo -e "	-g   GAMMA - This is a modal gamma curve that is applied to the image. 0 is default."
	echo -e "	  --> Use -g<mode> (no space). 0: Linear. 1: 2.2 (Adobe RGB). 2: 1.8 (ProPhoto RGB). 3: sRGB. 4: BT.709.\n"
	
	echo -e "	-P   DEPTH - Specifying this option will create an 8-bit output instead of a 16-bit output."
	echo -e "	  --> It'll kind of ruin the point of RAW, though....\n"
	
	echo -e "	-W   WHITE - This is a modal white balance setting. Defaults to 2; 1 doesn't always work very well."
	echo -e "	  --> Use -W<mode> (no space). 0: Auto WB. 1: Camera WB (If retrievable). 2: No WB Processing.\n"
	
	echo -e "	-l   LUT - This is a path to the 3D LUT. Specify the path to the LUT to use it."
	echo -e "	  --> Compatibility determined by ffmpeg (.cube is supported)."
	echo -e "	  --> Path to LUT (no space between -l and path). Without specifying -l, no LUT will be applied."
}


if [ $# == 0 ]; then
	echo -e "\e[0;31m\e[1mNo arguments, no joy!!!\e[0m\n"
	help
fi

ARGNUM=$#

trap "rm -rf ${TMP} ${NEW} ${PROXY}; exit 1" INT
for ARG in $*; do
	#Evaluate command line arguments. ARGNUM decrements to keep track of how many files there are to process.
	
	if [ `echo ${ARG} | cut -c1-1` = "-" ]; then
		if [ `echo ${ARG} | cut -c2-2` = "H" ]; then
			HIGHLIGHT_MODE=`echo ${ARG} | cut -c3-3`
			let ARGNUM--
		fi
		if [ `echo ${ARG} | cut -c2-2` = "s" ]; then
			if [ `echo ${ARG} | cut -c3-5` = "00" ]; then
				PROXY_SCALE="100%"
			else
				PROXY_SCALE=`echo ${ARG} | cut -c3-5`
			fi
			let ARGNUM--
		fi
		if [ `echo ${ARG} | cut -c2-2` = "m" ]; then
			HQ_MOV=true
			let ARGNUM--
		fi
		if [ `echo ${ARG} | cut -c2-2` = "M" ]; then
			MLV_DUMP=`echo ${ARG} | cut -c3-${#ARG}`
			let ARGNUM--
		fi
		if [ `echo ${ARG} | cut -c2-2` = "p" ]; then
			LQ_PROXY=true
			let ARGNUM--
		fi
		if [ `echo ${ARG} | cut -c2-2` = "D" ]; then
			DELETE_TIFF=true
			let ARGNUM--
		fi
		if [ `echo ${ARG} | cut -c2-2` = "o" ]; then
			OUTDIR=`echo ${ARG} | cut -c3-${#ARG}`
			let ARGNUM--
		fi
		if [ `echo ${ARG} | cut -c2-2` = "h" ]; then
			help
			let ARGNUM--
		fi
		if [ `echo ${ARG} | cut -c2-2` = "d" ]; then
			DEMO_MODE=`echo ${ARG} | cut -c3-3`
			let ARGNUM--
		fi
		if [ `echo ${ARG} | cut -c2-2` = "g" ]; then
			mode=`echo ${ARG} | cut -c3-3`
			case ${mode} in
				"0") GAMMA="1 1"
				;;
				"1") GAMMA="2.2 0"
				;;
				"2") GAMMA="1.8 0"
				;;
				"3") GAMMA="2.4 12.9"
				;;
				"4") GAMMA="2.222 4.5"
				;;
			esac
		
			let ARGNUM--
		fi
		if [ `echo ${ARG} | cut -c2-2` = "P" ]; then
			DEPTH=""
			let ARGNUM--
		fi
		if [ `echo ${ARG} | cut -c2-2` = "W" ]; then
			mode=`echo ${ARG} | cut -c3-3`
			case ${mode} in
				"0") WHITE="-a"
				;;
				"1") WHITE="-w"
				;;
				"2") WHITE="-r 1 1 1 1"
				;;
			esac
		
			let ARGNUM--
		fi
		if [ `echo ${ARG} | cut -c2-2` = "K" ]; then
			echo $DEPS
			exit 0
		fi
		if [ `echo ${ARG} | cut -c2-2` = "l" ]; then
			LUT=`echo ${ARG} | cut -c3-${#ARG}`
			if [ ! -f $LUT ]; then
				echo "LUT not found!!!"
				echo $LUT
				exit 1
			fi
			isLUT=true
			let ARGNUM--
		fi
		continue
	fi
	
	
	echo -e "\n\e[1mFiles Left to Process: \e[0m${ARGNUM}\n"
	
	#Create directory structure.
	mkdir -p $OUTDIR
	
	TRUNC_ARG=`echo ${ARG} | cut -f 1 -d "."`
	TMP="${OUTDIR}/tmp_${TRUNC_ARG}"
	NEW="${OUTDIR}/${TRUNC_ARG}"
	PROXY="${OUTDIR}/${TRUNC_ARG}_proxy"
		
	mkdir $TMP
	
	#Dump to DNG sequence using mlv_dump
	echo -e "\n\e[1m${TRUNC_ARG}:\e[0m Dumping to DNG Sequence...\n"

	$MLV_DUMP $ARG -o "${TMP}/${TRUNC_ARG}_" --dng --no-cs > /dev/null
	
	FRAMES=`expr $(ls -1U ${TMP} | wc -l) - 1`

	echo -e "\n\e[1m${TRUNC_ARG}:\e[0m Converting ${FRAMES} DNGs to TIFF...\n"

	trap "rm -rf ${TMP} ${NEW} ${PROXY}; exit 1" INT
	i=0
	for file in $TMP/*.dng; do
		dcraw -q $DEMO_MODE $WHITE -H $HIGHLIGHT_MODE -g $GAMMA -o 0 $DEPTH -T "${file}"  > /dev/null
		# -a gives auto white balance... Camera WB doesn't seem to be working properly :(. Other plausible default might be -r 1 1 1 1 .
#					output=$(printf "${TMP}/pngs/${TRUNC_ARG}_%05d" ${i})
#					darktable-cli "${file}" "000000.dng.xmp" "${output}.png" --hq 1 --core --conf plugins/imageio/format/png/bpp
		echo -e "\e[2K\rDNG Development (dcraw): Frame ${i}/${FRAMES}.\c"
		let i++
	done
	
	mkdir $TRUNC_ARG
	
	#Potentially apply a LUT.
	if [ $isLUT = true ]; then
		echo -e "\n\n\e[1m${TRUNC_ARG}:\e[0m Applying LUT to ${FRAMES} TIFFs...\n"
		trap "rm -rf ${TMP} ${NEW} ${PROXY}; exit 1" INT
		i=0
		for tiff in $TMP/*.tiff; do
			output=$(printf "${TMP}/LUT_${TRUNC_ARG}_%06d" ${i})
			ffmpeg -i $tiff -loglevel panic -vf lut3d="${LUT}" "${output}.tiff"
			rm $tiff
			echo -e "\e[2K\rApplying LUT (ffmpeg): Frame ${i}/${FRAMES}.\c"
			let i++
		done
	fi
	
	echo -e "\n\n\e[1m${TRUNC_ARG}:\e[0m Processing ${FRAMES} TIFFs & Generating Proxies...\n"
	
	mkdir $PROXY
	
	#Move tiffs into place and generate proxies.
	trap "rm -rf ${TMP} ${NEW} ${PROXY}; exit" INT
	i=0
	for tiff in $TMP/*.tiff; do
		output=$(printf "${PROXY}/${TRUNC_ARG}_%06d" ${i})
		convert -quiet $tiff -resize $PROXY_SCALE "${output}.jpg"  > /dev/null #PROXY GENERATION
		
		mv $tiff $NEW #TIFF MOVEMENT
		
		echo -e "\e[2K\rProxy Generation (IM): Frame ${i}/${FRAMES}.\c"
				
		let i++
	done
	
	#Move .wav.
	mv "${TMP}/${TRUNC_ARG}_.wav" $OUTDIR

	#Movie creation, for editing:

	echo -e "\n\n\e[1m${TRUNC_ARG}:\e[0m Processing video options...\n"
	
	# --> Potentially create High Quality Prores 4444: 
	if [ $HQ_MOV = true ]; then
		ffmpeg -f image2 -i "${NEW}/${TRUNC_ARG}_%06d.tiff" -i "${OUTDIR}/${TRUNC_ARG}_.wav" -loglevel panic -stats -vcodec prores_ks -pix_fmt yuva444p10le -profile:v 4444 -c:a copy "${OUTDIR}/${TRUNC_ARG}_hq.mov"
	fi
	
	# --> Potentially create proxy H.264: Highly unsuited for any color work; just a preview.
	if [ $LQ_PROXY = true ]; then
		ffmpeg -f image2 -i "${PROXY}/${TRUNC_ARG}_%06d.jpg" -i "${OUTDIR}/${TRUNC_ARG}_.wav" -loglevel panic -stats -c:v libx264 -preset fast -crf 23 -c:a mp3 "${OUTDIR}/${TRUNC_ARG}_lq.mp4"
	fi
	
	echo -e "\n\e[1mDeleting files.\e[0m\n"

	#Potentially delete TIFFs and JPGs.
	if [ $DELETE_TIFF = true ]; then
		rm -rf $NEW
	fi
	
	#Delete tmp
	rm -rf $TMP
	
	let ARGNUM--
done

exit 0