makeframemd5

#!/usr/bin/env bash
# load nmaahcmmfunctions into this script
SCRIPT_PATH="${0%/*}"
. "${SCRIPT_PATH}/nmaahcmmfunctions"
[[ -f "${SCRIPT_PATH}/nmaahcmmfunctions" ]] || { echo "Missing '${SCRIPT_PATH}/nmaahcmmfunctions'. Exiting." ; exit 1 ;};
_initialize_make # safe script termination process defined in nmaahcmmfunctions
DEPENDENCIES=(ffmpeg) # list dependencies required by script
_check_dependencies "${DEPENDENCIES[@]}" # defined in nmaahcmmfunctions

### USAGE

_usage(){
    echo
    echo "$(basename "${0}")"
    echo "This application will generate frame MD5s for all frames in a video file. It takes a video file or package as an argument. (If a package, the application will generate frame MD5s for all .mov files in the package.) The frame MD5s will be stored as text in a file with extension .framemd5.md5"
    echo "Usage: $(basename ${0}) fileorpackage"
    echo
    exit
}
[ "${#}" = 0 ] && _usage # if the command is run with no arguments then _usage is called
# getopts loop
OPTIND=1
while getopts ":h" OPT; do
    case "${OPT}" in
        h) _usage ;; # if the operator runs "[scriptname] -h" then the _usage text above will display in the terminal
        *) echo "Invalid option -${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 ))

## SCRIPT ACTIONS

# log script beginning
_log -b

shopt -s globstar

while [ "${*}" != "" ] ; do
    #name input as the first argument sent to script
    INPUT="${1}"
    if [[ -d "${INPUT}" ]] ; then
        for FILE in "${1}"/**/*.mov ; do # find the first .mov file two subdirectories down from the input
            ffmpeg -i "${FILE}" -an -f framemd5 "${FILE}.framemd5.md5"
        done
    elif [[ -f "${INPUT}" ]] ; then
        ffmpeg -i "${INPUT}" -an -f framemd5 "${INPUT}.framemd5.md5"
    fi
    shift
done

# log script ending
_log -e
_report -g "makeframemd5 process complete."