A simple, and handy tool for calculating video duration of one file or directory of multiple video files

getMediaInformation.sh

#
# Author: Ebi: ebrhim.soroush@gmail.com
# You have to install mediainfo and libxml-xpath-perl and source this file or just copy this script into your ~/.bashrc
# sudo apt install mediainfo libxml-xpath-perl
# 
read_dom () {
    local IFS=\>
    read -d \< ENTITY CONTENT
};

getProperty() 
{
videoFileName=$1
property=$2
mediainfo $videoFileName --Output=XML | while read_dom; do if [[ $ENTITY == $property ]]; then echo $CONTENT; break; fi; done;
};

round()
{
	echo $(printf %.$2f $(echo "scale=$2;(((10^$2)*$1)+0.5)/(10^$2)" | bc))
};

calculateVideoDuration(){
    videoPath=$1
    durationSeconds=0;
    while read_dom; do
        if [[ $ENTITY == Duration ]]; then 
            durationSeconds=`echo $durationSeconds+$CONTENT|bc`
        fi
    done <<< `mediainfo $videoPath --Output=XML | xpath -e '//track[@type="Video"]/Duration' 2>/dev/null`
    totalMinutes=$(round $durationSeconds/60 2)
    driftSeconds=`a=$(echo $totalMinutes | cut -d"." -f2); echo $a*60/100|bc`
    totalMinutes=`echo $totalMinutes | cut -d"." -f1`
    echo total time is: $totalMinutes minutes and $driftSeconds seconds
};

This is a simple and yet useful script for calculating all video duration existing in a directory.