YouTube DL + ffmpeg mp3 downloader script

dl.sh

#!/bin/bash

readonly TMP_DIR="/tmp/ytdl"
readonly TMP_OUT="/tmp/out"
readonly ARGS="$@"

download_video() {
    echo "================================ Downloading $1 ================================"
    youtube-dl $1 --output ${TMP_DIR}/%\(title\)s
}

delete_tmp() {
    rm -rf ${TMP_DIR}
}

convert(){
    ffmpeg -i "${TMP_DIR}/${1}" -acodec libmp3lame -ab 128k "${TMP_OUT}/${1}.mp3"
}

get_filename(){
    ls ${TMP_DIR}
}

main() {
    mkdir -p ${TMP_OUT}

    while read url
    do
        download_video $url
        convert "$(get_filename)"
        delete_tmp
    done < ${ARGS[0]}
}

main