rename-video-nested.sh

SP=$PWD
for A in `ls -d $PWD/*`; do 
  cd $A 
  rename-video.sh 
done 
cd $SP

rename-video.sh

##Example: kamera.11-05-07_12-45.00.avi
# How to split one string into multiple variables in bash shell.
pat='(.*)[\._-]([0-9]{4})[\._-]([0-9]{2})[\._-]([0-9]{2})[\._-]([0-9]{2})[\._-]([0-9]{2})[\._-]([0-9]{2})[\._-](avi)'
for a in `ls`; do
  #statements
  if [[ "$a" =~ $pat ]]; then
    NAVN=${BASH_REMATCH[1]}
    YEAR=${BASH_REMATCH[2]}
    MANE=${BASH_REMATCH[3]}
    DAG=${BASH_REMATCH[4]}
    TIME=${BASH_REMATCH[5]}
    MINUTT=${BASH_REMATCH[6]}
    SEKUND=${BASH_REMATCH[7]}
    FORMAT=${BASH_REMATCH[8]}

    mv -v $a ${YEAR}-${MANE}-${DAG}_${TIME}-${MINUTT}-${SEKUND}.${FORMAT}
    #statements
  fi

done

video-set_metadata.sh

##"title"
##"author"
##"album_artist"
##"album"
##"grouping"
##"composer"
##"year"
##"track"
##"comment"
##"genre"
##"copyright"
##"description"
##"synopsis"
##"show"
##"episode_id"
##"network"
##"lyrics"
# https://wiki.multimedia.cx/index.php/FFmpeg_Metadata


find /home/user/videos-to-process/ -type f -iname '*.mp4' \
  -exec ffmpeg \
    -i "{}" \
    -codec copy \
    -metadata artist="John Smith" \
    -metadata album="Foo Bar" \
    "{}.new.mp4" \; \
  -exec mv \
    "{}.new.mp4" "{}" \;