Youtube2Audio

Youtube to Audio

== yt-dlp

Faster (as of 2022-04-22) alternative fork on https://github.com/yt-dlp/yt-dlp

VID='PGCTQTZXGXs'
conda create -n yt-dlp yt-dlp
conda activate yt-dlp
yt-dlp --extract-audio --keep-video "https://www.youtube.com/watch?v=$VID"

Download youtube-dl or update to latest

sudo youtube-dl -U

Commands for DL a playlist

mkdir -p artist/album
cd artist/album
youtube-dl --extract-audio --keep-video 'album-playlist-url'

Option --embed-thumbnail seems useful, but did not work. Maybe retry later...

Commands for adding metadata

will need adapting to actual yt title audio formats. This playlist only contained video with opus (ogg vorbis) audio tracks.

mkdir meta
find . -name '*.opus' -print | while read f; do
  t=${f%-???????????.opus}
  t=${t/Roger Waters - /}
  t=${t#*/}
  a=${t%/*}
  t=${t#*/}
  echo "<$a><$t>"
  mkdir -p "meta/$a"
  ffmpeg -v 0 -i "$f" -acodec copy -metadata title="$t" -metadata artist="Roger Waters" -metadata album="$a" "meta/$a/$t.opus" </dev/zero
  ffmpeg -v 0 -i "$f" -acodec mp3  -metadata title="$t" -metadata artist="Roger Waters" -metadata album="$a" "meta/$a/$t.mp3" </dev/zero
done

The redirects are necessary because ffmpeg encoders seem to read from stdin and garble the "while read f" loop input

Add pictures as mp3 tag

for f in *.mp3; do 
  b=${f/.mp3/}; 
  echo $b; 
  id3v2 --APIC `cat "../$b.jpg"` "$f"; 
done