makemediainfo

#!/usr/bin/env bash

# a script to batch create a mediainfo.txt file on a set of files. Each file will receive its own seperate mediainfo.txt file
# named after the file it was created from. Make reports happen!

REQUIRECONFIG="N" # mmfuncitons requires a config files to be set, this line says this script does not need to do that
# load nmaahcmmfunctions library into this script
SCRIPT_PATH="${0%/*}" # using regular espressions to get the direction name the script is located in
# SCRIPT_PATH="$(dirname "${0}")" # doing the same thing as line 8 but with dirname tool
source "${SCRIPT_PATH}/nmaahcmmfunctions" # sources (references) the nmaahcmmfucntions library
[[ -f "${SCRIPT_PATH}/nmaahcmmfunctions" ]] || { echo "Missing '${SCRIPT_PATH}/nmaahcmmfunctions'. Exiting." ; exit 1 ;};
_initialize_make # safe script termination process defined in nmaahcmmfunctions library
DEPENDENCIES=(mediainfo cowsay) # list dependencies required by script
_check_dependencies "${DEPENDENCIES[@]}" # defined in nmaahcmmfunctions library

DATE=$(date +%Y-%m-%d)
SUFFIX="_mediainfo_$DATE.txt" #SUFFIX is blank here but can be filled in with desired characters for inclusion in filename

## USAGE

_usage(){
    echo
    echo "$(basename "${0}")"
    echo "WE NEED TO WRITER HERE"
    ech
    echo "Options:"
    echo " -h         Show this help information"
    exit
}
[ "${#}" = 0 ] && _usage # if the command is run with no arguments then _usage is called

# getopts loop
OPTIND=1
while getopts ":h" OPT; do
    case "${OPT}" in
        h) _usage ;;  # if t he operator runs "[scriptname] -h" then the _usage text above will display in the terminal
        *) echo "Invalid option -${OPTARG}" ; _usage ;; # if the operator tries to use an option other than the ones listed above, the _usage text will display in the terminal
    esac
done
shift $(( ${OPTIND} - 1 ))

_mediainfo_onefile(){
    INPUT="${1}"
    OUTPUT="${INPUT}${SUFFIX}" # set the name of the outoput file
        mediainfo -f "${INPUT}" --LogFile="${OUTPUT}" > /dev/null
        if [[ ! -s "${OUTPUT}" ]] ; then # if the output is not a file greater than zero size
        echo
            _report -r "error on $INPUT - file does not exist or file is zero size"
            else
            _report -g "$INPUT looks good!"
        fi
}

while [ "${*}" != "" ] ; do # while the number of arguments is not zero keep running script, i.e. script will end when there are no more files to process
    INPUT="${1}" # set $INPUT as the first argument sent to script
    shift
    if [[ -f "${INPUT}" ]] ; then # run process if input is a fil  
        _mediainfo_onefile "${INPUT}"
    
    elif [[ -d "${INPUT}" ]] ; then # run process if input is a fil
        TEMPFILE1="$(_maketemp)"
        TEMPFILE2="$(_maketemp)"
        # Gather a list of potential video files in the directory/package (TEMPFILE1). Ignore common image, audio, and text files; ignore all files in a "access" folder.
        _report "Checking for video files in the package..."
        find "${INPUT}" -type f -not -iname "*.dpx" -not -iname "*.wav" -not -iname "*.mp3" -not -iname "*.txt" -not -iname "*.xml" -not -path "*/access/*" >> "${TEMPFILE1}"
        # Check whether there is a video stream in each file; if there is, add it to a list of confirmed video files (TEMPFILE2). This approach is intended to catch all video files regardless of type or extension.
        while read FILE ; do
            if [[ -n "$(mediainfo --Inform="General;%VideoCount%" "${FILE}")" ]] ; then
                echo "Found video file ${FILE}"
                echo "${FILE}" >> "${TEMPFILE2}"
            else
                :
            fi
        done <"${TEMPFILE1}"
        # check whether any video files were found in this process, by checking whether $TEMPFILE2 is empty.
        if [[ ! -s "${TEMPFILE2}" ]] ; then
            _report -r "There are no video files in this package!"
        fi
        # make mediainfo file of all files in package
        while read FILE ; do
            _mediainfo_onefile "${FILE}"
            _report -s "Moving to next file if present..."
        done <"${TEMPFILE2}"
    fi
done


cowsay "Your files have been mediainfo'd! Tootles! whoa."

exit