Calculating the total duration of all the videos in a directory passed as the first parameter, ffprobe and awk needed

total_video_duration.sh

#!/bin/ven bash

# Finding the total duration of all the videos
# in the local Videos directory by default
# or in the directory passed as the first parameter

folder="${1:-$HOME/Videos}"
[ -d "$folder" ] || { echo "Folder not found: $folder" >&2; exit 1; }
echo "Calculating total video duration in $folder" >&2

find "$folder" -type f |
while read f 
do 
  if [[ $(file --brief --mime-type "$f") =~ "video/" ]]; then
    ffprobe -v quiet -show_entries format=duration -of csv="p=0" "$f"
  fi
done |
awk '{t+=$1} 
END {
  h=int(t/60/60); 
  m=int(t/60)%60; 
  s=t%60; 
  printf "%02i:%02i:%02.2f\n", h, m, s
}'