Bash

I made a script that downloads from youtube super fast using a custom aria2 build.

Aria2 https://github.com/P3TERX/Aria2-Pro-Core/releases

ffmpeg build https://github.com/yt-dlp/FFmpeg-Builds/releases

I choose ffmpeg-master-latest-linux64-gpl.tar.xz

#!/usr/bin/env bash
#set -x

if [[ -z $@ ]]; then
    echo "specify download url"
    exit
fi

dir_dl="$PWD"
url="$@"

ffmpeg_dir="$HOME/.local/bin.notpath/"
download_archive_dir="$HOME/Videos/yt-dlp/"
download_archive_filename=".yt-dlp-archived-done.txt"

mkdir -p "$download_archive_dir"

youtube_match_regex='^.*(youtube[.]com|youtu[.]be|youtube-nocookie[.]com).*$'

if [[ "$1" =~ $youtube_match_regex ]]; then
    url="$(echo "$@" | perl -pe 's/((?:http:|https:)*?\/\/(?:www\.|)(?:youtube\.com|m\.youtube\.com|youtu\.|#youtube-nocookie\.com).*(?:c(?:hannel)?\/|u(?:ser)?\/|v=|v%3D|v\/|(?:a|p)\/(?:a|u)\/\d.*\/|watch\?|vi(?:=|\/)|\/#embed\/|oembed\?|be\/|e\/)([^&?%#\/\n]+)).*/$1/gm')"
    yt-dlp \
    --check-formats \
    --clean-info-json \
    --download-archive "$download_archive_dir$download_archive_filename" \
    --embed-chapters \
    --embed-info-json \
    --embed-metadata \
    --embed-thumbnail \
    --external-downloader aria2c \
    --downloader-args \
    "aria2c: \
        --allow-piece-length-change=true \
        --check-certificate=false \
        --console-log-level=notice \
        --content-disposition-default-utf8=true \
        --continue=true \
        --disk-cache=8192 \
        --download-result=full \
        --enable-mmap \
        --file-allocation=falloc \
        --lowest-speed-limit=100K \
        --max-concurrent-downloads=16 \
        --max-connection-per-server=64 \
        --max-mmap-limit=8192M \
        --max-resume-failure-tries=5 \
        --max-file-not-found=2 \
        --max-tries=3 \
        --min-split-size=64K \
        --no-file-allocation-limit=8192M \
        --piece-length=64k \
        --realtime-chunk-checksum=false \
        --retry-on-400=true \
        --retry-on-403=true \
        --retry-on-406=true \
        --retry-on-unknown=true \
        --retry-wait=1 \
        --split=32 \
        --stream-piece-selector=geom \
        --summary-interval=0 " \
    --ffmpeg-location "$ffmpeg_dir" \
    --output "$dir_dl"'/%(channel)s/%(title)s_%(channel)s_%(upload_date>%Y-%m-%d)s_%(duration>%H-%M-%S)s_%(resolution)s.%(ext)s' \
    --prefer-free-formats \
    --remux-video mkv \
    --restrict-filenames \
    --sponsorblock-remove "filler,interaction,intro,music_offtopic,outro,preview,selfpromo,sponsor" \
    --sub-langs "en.*,live_chat" \
    --write-auto-subs \
    --write-description \
    --write-info-json \
    --write-playlist-metafiles \
    --write-subs \
    --write-thumbnail \
    "$url"
else
    yt-dlp \
    --download-archive "$download_archive_dir$download_archive_filename" \
    --embed-chapters \
    --ffmpeg-location "$ffmpeg_dir" \
    --http-chunk-size 10M \
    --output "$dir_dl/%(title)s_%(duration>%H-%M-%S)s_%(upload_date>%Y-%m-%d)s_%(resolution)s_URL_(%(id)s).%(ext)s" \
    --prefer-free-formats \
    --restrict-filenames \
    "$url"
fi