Create sidecar images for videos, for storing metadata

create-sidecar-images.sh

#!/bin/bash

# Don't proceed if there are no files with a particular extension. https://stackoverflow.com/a/41139446
shopt -s nullglob

# Match MP4 in addition to mp4
shopt -s nocaseglob

for video_file in *.{mp4,mov} ; do
  sidecar_file=$(echo $video_file | sed 's/\(.*\.\).*/\1jpg/' )
  echo "Exporting sidecar for ${video_file}: ${sidecar_file}"

  ffmpeg -ss 00:00:00 -i "${video_file}" -vframes 1 -y "${sidecar_file}" -loglevel error

  # Fix video Create Date. Pixel 5 videos (but not photos) have incorrect date. This way, if
  # I sort by Create Date in Lightroom, video will be in right place.
  # PST - 8 - 1st Sun in Nov to 2nd Sun in Mar
  # PDT - 7 - 2nd Sun in Mar to 1st Sun in Nov
  exiftool "-AllDates-=7" -overwrite_original -quiet -api LargeFileSupport=1 "${video_file}"

  # Copy Create Date from video to sidecar. -ee just to hide Warning.
  exiftool -overwrite_original -quiet -ee -tagsfromfile "$video_file" -api LargeFileSupport=1 "$sidecar_file"
done

say done