Finds, compresses, and moves video files to their proper locations on my WD MyBook drive

compress.command

#!/usr/bin/env bash

# set -x

CWD=$(pwd)
DIR="$(cd -P "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

PREFIX='screencast'
INCOMINGDIR='Incoming'
SRCDIR=$CWD
# SRCDIR=~/Downloads
# SRCDIR="${DIR}/${INCOMINGDIR}"

eval 'EXTS=( ${1-mpeg mpg avi wmv mkv m4v mov mp4 flv} )'
# eval 'EXTS=( ${1-'mpeg' 'mpg' 'mkv' 'm4v' 'mov' 'mp4' 'flv'} )'



remove_partial_files() {
    echo "Removing partially processed files in ${DIR}/${INCOMINGDIR}..."
    pushd "$DIR"
    FILE=$(gls -rt "${INCOMINGDIR}"/* | gxargs -L 1 echo | tail -1)
    echo "Removing partially complete file '${FILE}'"
    test ! -e "${FILE}" || trash "${FILE}"
    popd
}

move_generated_files() {
    PREFIX=$1
    EXT=$2
    echo "Moving generated videos with prefix '${PREFIX}' and extension '${EXT}' from ${DIR}/${INCOMINGDIR} to $DIR/Videos..."
    pushd "$DIR"
    rename --mkpath \
        "s/${INCOMINGDIR}\/(.*)\.${EXT}\.mp4/Videos\/\$1.mp4/" \
        "${INCOMINGDIR}/${PREFIX}"*
    popd
}

remove_source_files() {
    PREFIX=$1
    EXT=$2
    echo "Removing processed source videos in ${SRCDIR} with prefix '${PREFIX}' and extension '${EXT}'..."
    pushd "${SRCDIR}"
    gfind \
        -name "${PREFIX}*.${EXT}" \
        \! -path "*.inProgress*" \
        -exec \
            trash "{}" \;
    popd
}

transcode_files() {
    PREFIX=$1
    EXT=$2
    echo "Processing videos in ${SRCDIR} (excluding *.inProgress*) with prefix '${PREFIX}' and extension '${EXT}'..."
    pushd "${SRCDIR}"
    gfind \
        -name "${PREFIX}*.${EXT}" \
        \! -path "*.inProgress*" \
        -print0 \
        | gxargs -0 -L1 -I% bash -c " \
            mkdir -p \"\$(dirname '${DIR}/${INCOMINGDIR}/%')\" && \
            ffmpeg -n -i '%' \
            -vf \"scale='min(iw,1280)':'trunc(ow/a/2)*2'\" \
            -vcodec libx265 -preset ultrafast -x265-params crf=24 \
            -strict experimental \
            -acodec aac -b:a 96K \
            '${DIR}/${INCOMINGDIR}/%.mp4'"
    popd

#          -vf \"scale='min(iw,1280)':'trunc(ow/a/2)*2'\" \
}

cleanup() {
    PREFIX=$1
    EXT=$2
    remove_partial_files
    move_generated_files "${PREFIX}" "${EXT}"

    cd "$CWD"
    exit 1
}



#################
##### Begin #####
#################

trap 'cleanup "${PREFIX}" "${EXT}"' SIGHUP SIGINT SIGTERM ERR


for EXT in "${EXTS[@]}"; do
    set -e
    transcode_files "${PREFIX}" "${EXT}"
    move_generated_files "${PREFIX}" "${EXT}"
    remove_source_files "${PREFIX}" "${EXT}"
    set +e
done


echo "Completed Successfully"