Timecode Enricher

timecode-rewrap.sh

#!/bin/sh

### Timecode generation script for MP4 footage (AVCHD, XAVC-S, etc.)
### Uses ffmpeg for timecode creation; EditReady for container cleanup;
### exiftool for copying over original track dates; and SetFile for setting
### the File Creation Date for FCP X event 

### Note: this script currently does not work for files with spaces

# quit on first error (almost always)
# special thanks to: http://stackoverflow.com/a/3474556
set -e

# set to 1 to debug
INTERACTIVE=0

function pause(){
   read -p "$*"
}

function interactive(){
	if [[ INTERACTIVE -eq 1 ]]; then 
		pause 'Press [Enter] key to continue...' 
	fi
}

prevent_idle="caffeinate -i"

if [ "$#" -ne 1 ]
then
  echo "Usage: script.sh INPUT_FOLDER"
  echo "Note: INPUT_FOLDER is non-recursive"
  exit 1
fi

# trim forward slashes from folders
# special thanks to: http://stackoverflow.com/a/1848456
INPUT_FOLDER=${1%/}
# no forward slash
# TODO for some reason ~ breaks exiftool command
OUTPUT_FOLDER="/Users/Krish/Movies/EditReady"
NDF_SUFFIX=";00"
EDITREADY="/Applications/EditReady.app/Contents/MacOS/EditReady"
REWRAP_PRESET="/Applications/EditReady.app/Contents/Resources/Rewrap.erpreset"

for f in $INPUT_FOLDER/*
do 
	if [[ -d "$f" ]]; then
		echo "$f is a directory, skipping"
		continue
	fi
	
	# special thanks to: http://stackoverflow.com/a/965072
	filename=$(basename "$f")
	extension="${filename##*.}"
	filename="${filename%.*}"
	
	echo "Processing $filename..."
	START_TIMEDATE=`exiftool -api largefilesupport=1 -T -TrackCreateDate "$f"`
	START_TIME=`echo ${START_TIMEDATE} | tail -c9`
	START_YEAR=`echo ${START_TIMEDATE} | head -c4`
	START_MONTH=`echo "${START_TIMEDATE}" | head -c7 | tail -c2`
	START_DAY=`echo "${START_TIMEDATE}" | head -c10 | tail -c2`
	echo "  Track Create Date is ${START_TIME}"

	# ------------- Generate Timecode Track ---------------------

	TCFILE="${1}/${filename}.tmp.${extension}"
	echo "  Generating timecode track $TCFILE..."
	interactive
	${prevent_idle} ffmpeg -vf "fieldorder=tff" -i "$f" -codec copy -timecode ${START_TIME}${NDF_SUFFIX} $TCFILE

	# ------------- Transfer track creation metadata ---------------------

	echo "Copying date tags from original to newly rewrapped file ${EDITREADY_OUTPUT}..."
	interactive
	${prevent_idle} exiftool -api largefilesupport=1 -overwrite_original -tagsFromFile "$f" -CreateDate -TrackCreateDate ${TCFILE}
	
	# ------------- EditReady rewrap for proper container integrity. Also sets TrackModifyDate and ModifyDate based on earlier ExifTool changes for CreateDate and TrackCreateDate ---------------------
	
	TCFILENAME=$(basename "${TCFILE}")
	EDITREADY_OUTPUT="${OUTPUT_FOLDER}/${TCFILENAME}"
	
	echo "Rewrapping $TCFILE with EditReady to clean up container..."
	interactive
	${prevent_idle} ${EDITREADY} -s ${TCFILE} -d ${OUTPUT_FOLDER} -p ${REWRAP_PRESET}
	
	# ------------- Adjust file creation date for FCP X ---------------------
	
	# special thanks to: http://apple.stackexchange.com/a/99599
	echo "Setting Mac Creation Time (for proper FCP X event date) on ${EDITREADY_OUTPUT}..."
	interactive
	SetFile -d "${START_MONTH}/${START_DAY}/${START_YEAR} ${START_TIME}" ${EDITREADY_OUTPUT}
	
	# ------------- Cleanup temp files ---------------------
	
	# echo "  Deleting temp file ${TCFILE}..."
	# interactive
	# rm ${TCFILE}
	
done