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#!/bin/env bash
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# Batch convert multiple Magic Lantern dual ISO image files on Linux
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# Copyright (C) 2017,2023 Pekka Helenius
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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###############################################
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# We get the directory just from the first filename.
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INPUT_DIR=$(dirname "${1}")
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DIR_BASENAME=$(echo "${INPUT_DIR}" | rev | cut -d/ -f 1 | rev)
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mkdir -p "${INPUT_DIR}/converted_dual_iso"
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############################################################################################
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# PROGRESSBAR CODE - BEGIN
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LABELTEXT="Processing RAW images..."
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numargs=$# # Number of all files
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tics=100 # Percentage tics
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inc=0 # Current file number
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mltp=1000 # Percentage multiplier for bash
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dbusRef=$(kdialog --title "Dual ISO (folder: ${DIR_BASENAME})" --progressbar "${LABELTEXT}" "${tics}")
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qdbus $dbusRef showCancelButton true
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# PROGRESSBAR CODE - END
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while \
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[[ $# -gt 0 ]] && \
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[[ $(qdbus $dbusRef wasCancelled) == "false" ]]
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do
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INPUT="${1}"
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OLDFILE_CR2=$(basename "${INPUT}")
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# Once we do this, it's very clear which kind of CR2 file we're talking about here.
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NEWFILE_CR2=$(basename "${INPUT}" | sed 's/\.\w*$/_dualiso.CR2/')
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# Converted Dual ISO file.
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NEWFILE_DNG=$(basename "${INPUT}" | sed 's/\.\w*$/_dualiso.DNG/')
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# If converted Dual ISO exists already, we skip the conversion process.
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# This test passes only if the file doesn't exist.
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if [[ ! -e "${INPUT_DIR}/converted_dual_iso/${NEWFILE_DNG}" ]]
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then
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# Test an input file for Dual ISO.
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if [[ $(cr2hdr --dry-run "${INPUT}" | grep "Interlaced ISO detected" | wc -l) -eq 1 ]]
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then
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echo "Interlaced ISO detected: ${OLDFILE_CR2}"
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# Rename detected dual ISO CR2 file with a proper prefix
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# (so that we can distinguish Dual ISO images from "normal" CR2 files)
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mv "${INPUT_DIR}/${OLDFILE_CR2}" "${INPUT_DIR}/${NEWFILE_CR2}"
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# Input we will use from this point is the renamed file,
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# so we set INPUT variable to point to the renamed file.
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INPUT="${INPUT_DIR}/${NEWFILE_CR2}"
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# Process a valid input file.
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cr2hdr --process "${INPUT}"
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# Move converted dual iso file.
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mv "${INPUT_DIR}/${NEWFILE_DNG}" "${INPUT_DIR}/converted_dual_iso/"
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# Add Subject=Dual-ISO tag for every Dual ISO CR2 file.
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echo "Writing new EXIF/XMP tag Subject: Dual ISO CR2"
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exiftool -xmp:subject="Dual ISO CR2" "${INPUT_DIR}/${NEWFILE_CR2}" -overwrite_original
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fi
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fi
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##############################################
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# PROGRESSBAR CODE - BEGIN
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let inc++
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# Percentage needs to be calculated like this due to bash rounding limitations.
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PERCENT_VALUE=$(((${mltp}*${tics})/(200*${numargs}/${inc} % 2 + ${mltp}*${numargs}/${inc})))
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# Output: 20, 40, 59, 80, 100 etc.
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qdbus $dbusRef Set "" "value" "${PERCENT_VALUE}";
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qdbus $dbusRef setLabelText "$LABELTEXT (${inc}/${numargs})";
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# PROGRESSBAR CODE - END
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# Move to the next file.
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shift
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done
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##############################################
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# Close processing window if cancelled event has been triggered.
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# PROGRESSBAR CODE - BEGIN
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# If the process was cancelled, remove tmp file and exit the script.
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if [[ ! $(qdbus $dbusRef wasCancelled) == "false" ]]
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then
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exit 0
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fi
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# Close processing window if not cancelled and processing finished.
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qdbus $dbusRef close
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# PROGRESSBAR CODE - END
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##############################################
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if [[ $(pgrep -x 'cr2hdr' | wc -l) == 0 ]]
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then
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notify-send 'Dual ISO' -i image-x-krita 'Conversion done!'
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fi
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############################################################################################
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QUESTCOUNT=0 #Ask this question only once
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# Dual ISO (Subject only defined in converted Dual ISO DNG images)
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for i in $(find "${INPUT_DIR}" -maxdepth 1 -type f -iname "*.DNG")
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do
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if \
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[[ ! -z $(echo -n "${i}") ]] && \
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[[ $(exiftool "${i}" |grep --max-count=1 "Subject" | sed -e 's/.*: //g') == *"Dual-ISO"* ]]
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then
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if [[ "${QUESTCOUNT}" -eq 0 ]]; then
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QUESTION=$(kdialog --yesno "More Dual ISO files detected in '$(echo ${INPUT_DIR} | rev | cut -d/ -f1 | rev)' main folder. Do you want to move these files into 'converted_dual_iso' folder?";)
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echo "${QUESTION}"
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MOVEALL=true
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let QUESTCOUNT++
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else
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MOVEALL=false
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fi
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if [[ "${MOVEALL}" == true ]]; then
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mv "${i}" "${INPUT_DIR}/converted_dual_iso/"
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echo "DEBUG: all detected Dual ISO images moved to 'converted_dual_iso' folder"
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fi
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fi
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done
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############################################################################################
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# If there are no files converted, we delete converted_dual_iso folder
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if [[ $(ls "${INPUT_DIR}/converted_dual_iso" | wc -l) -eq 0 ]]
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then
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rm -Rf "${INPUT_DIR}/converted_dual_iso"
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fi
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exit 0
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