renamer.sh

#!/usr/bin/env bash

# This is a script to rename movies files
# from: Edge of Tomorrow [2014 BluRay].mp4
# to:   Edge of Tomorrow [2014 720p].mp4

##############
# EDIT THESE #
##############

FILE_EXTENSIONS=(axv dl dif dv fli gl mpeg mpg mpe ts qt mov ogv webm mxu flv lsf lsx mng asf asx wm wmv wmx wvx avi movie mpv mkv)
PATH_TO_MOVIES="/mnt/path"

##############################

# This function turns an integer resolution
# into a human-readable 720p or 1080p

height_to_res() {
    height=$1
    if (( $height == 1080 )); then
        echo "1080"
    elif (( $height == 720 )); then
        echo "720"
    elif (( $height > 1000 )); then
        echo "1k HDTV"
    elif (( $height > 500 )); then
        echo "HDTV"      
    else
    	echo "unknown"
    fi
}

scanType() {
    scan=$1
    if (( $scan == "Progressive" )); then
        echo "p"
    else
    	echo "i"
    fi
}

# Using the above extension list, we build an expression
# to find files with those endings

find_exp='-iname "*.'
find_exp=${find_exp}${FILE_EXTENSIONS[0]}'"'
for ext in ${FILE_EXTENSIONS[@]:1}; do
    find_exp=${find_exp}' -o -iname "*.'${ext}'"'
done

eval find "$PATH_TO_MOVIES" -type f  '\(' $find_exp '\)' | while read fullfile; do

    # Use `mediainfo` to find height in pixels
    height=$( mediainfo --Inform="Video;%Height%" "$fullfile" )
    # Use function above to convert this integer to 720p/1080p
    res=$( height_to_res $height )

    scan=$( mediainfo --Inform="Video;%ScanType%" "$fullfile" )
    scanType=$(scanType $scan)

    
    # extract original directory name
    dir=$( dirname "$fullfile" )

    # extract original filename
    orig_filename=$( basename "$fullfile" )

    # extract original extension
    ext="${orig_filename##*.}"

    # look int the original filename for a year
    # i.e. something that starts with 1 or 2, followed by 3 more digits
    year=$( echo "$orig_filename" | grep -oE '[1,2][0-9]{3}' | tail -n 1 )

    # find the name of the movie
    # i.e. everything up to a [ or . character
    name=$( echo "$orig_filename" | grep -oE '^[^[\.]+' )
    # Trim tailing whitespace
    name=${name%%+( )}

    new_path="$name"
    if [ -n "$year" ] && [ -n "$res" ]; then
        new_path="${new_path} [${year} ${res}${scanType}]"
    elif [ -n "$year" ]; then
        new_path="${new_path} [${year}]"
    elif [ -n "$res" ]; then
        new_path="${new_path} [${res}${scanType}]"
    fi

    # add extenstion
    new_path="${new_path}.${ext}"

    # add directory
    new_path="${dir}/${new_path}"


    echo "----------------------"
    echo "  Found movie file"
    echo "----------------------"
    echo "Full path:    $fullfile"
    echo "In directory: $dir"
    echo "Extension:    $ext"
    echo ""
    echo "Movie name:   ${name:-NOT FOUND!!}"
    echo "Year:         ${year:-None}"
    echo "Resolution:   ${res:-None}"
    echo "Scan Type:    ${scanType:-None}"
    echo ""
    echo "Will rename to:"
    echo "$new_path"
    echo "----------------------"
    echo ""
    echo ""


    ############################################
    ## UNCOMMENT THE FOLLOWING TO RENAME FILES #
    ##         THIS IS NOT A DRILL             #
    ############################################

    #mv "$fullfile" "$new_path"

    
done