Youtube to audio CD

17. 2. 2020

Update 2022
Download
Rename by date, adding numerals
Detox file names
Tag, Picard in repos
Convert to 44.1 khz EBUr128 flac files
A script to populate folders by audio length
Burn
Cover
Notes
- What if playlist is private

Update 2022 ↓

Meantime youtube-dl was superseded by yt-dlp, which should behave in similar fashion.

Download ↓

youtube-dl -i -f 140 playlist
# -i stands for ignore errors and continue
youtube-dl -i -f 140 -o '%(title)s.%(ext)s' --restrict-filename playlist
# with nicer filenames

Naming templates.

Rename by date, adding numerals ↓

n=0; ls -tr *.m4a | while read i; do n=$((n+1)); mv -- "$i" "$(printf '%03d' "$n")"_"$i"; done

Hacky, but works for this purpose, that is keeping playlist order.

Detox file names ↓

detox -r -v -n *.m4a # remove -n when ready

Because certain file names will cause problems with picard and with k3b.

Tag, Picard in repos ↓

You will need musicbrainz account.
In preferences disable cover art downloads/embeding.
Scan, save.
If some are left on the left, then tools/Tags from file names, save.

%trash%_%artist%-%title%

Convert to 44.1 khz EBUr128 flac files ↓

Flac is needed due to the fact it can carry metadata for cd text that k3b can use.

toFlacCD. This script is part of singularity and it will not run standalone.

toFlacCD *.m4a

A script to populate folders by audio length ↓

Warning: Assumes and doesn’t check if there is a single file longer than 80 minutes.

#!/bin/bash

# populate cd folders by length script
# usage: ./script *.flac

cd="1"
mkdir -p "$cd"
durall="0"

# main
while [ $# -gt 0 ]; do

    line="$1"
    echo "$cd $line"
    
    # duration of song in seconds
    dur="$(mediainfo --Inform="General;%Duration%" "$line")"
    if [ -z "$dur" ]; then
        echo "$line didn't report any length, skiping."
        continue # skip this file
    else
        dur=${dur::-3}
    fi
    
    # 700 MB CD should hold ~ 80 minutes of audio = 4800 seconds
    (( durall = durall + dur )) ; echo "durall $durall"
    
    if (( durall > 4700 )); then
    
        rm "$cd/$prev"
    
        (( cd = cd + 1 ))
        mkdir -p "$cd"
        
        cp "$prev" "$cd"
        durall="0"
        
    else
        
        cp "$line" "$cd"
        
    fi
    
    # store previous line
    prev="$line"
    
    #sleep 1
    
shift
done

Should be run inside that flac folder as ./script *.flac. Size of each folder might be checked with

cd 1
du -mc *

Burn ↓

k3b. Make sure that CD-text is populated. Brasero also seems to support CD-text (untested).

Cover ↓

Txt ↓

Generate tmp.txt file declaring cd structure. A script named cover, put in ~/bin

#!/bin/bash

# cover

# make txt cover for a cd, 
# usage: 'cover *.flac > tmp.txt'

n="1"

# Use folder name for cd title
printf '(%s)\n' "${PWD##*/}"

# main
while [ $# -gt 0 ]; do

    song="$1"

    title="$(metaflac --show-tag=title "$song")" && title="${title#TITLE=}"
    artist="$(metaflac --show-tag=artist "$song")" && artist="${artist#ARTIST=}"

    if [ -z "$title" ]; then
        title="$song"
    fi
    if [ -z "$artist" ]; then
        artist="$song"
    fi
    
    printf '%02d. %s - %s\n' "$n" "$title" "$artist"
           
    (( n = n + 1 ))

shift
done

Usage

cd 8
cover *.flac > tmp.txt && cat tmp.txt

may return

(8)
Just Like Fire - P!nk
One Last Time - Ariana Grande
Green Light - Lorde
Blow Your Mind (Mwah) - Dua Lipa
Girls - Rita Ora feat. Cardi B, Bebe Rexha & Charli XCX

Html template that should print to exactly 120x120 mm ↓

Example cover template.htm.

(Note: Two of this will fit in A4)

Asumming that template.htm has ‘replaceme’ string inside <pre> tags and it’s in ~/bin

sed -e "/replaceme/r tmp.txt" -e "/replaceme/d" ~/bin/template.htm > cover.htm

Merge ↓

https://unixblogger.com/how-to-easily-merge-pdf-documents-under-linux/

sudo apt install poppler-utils

echo **/*.pdf(n) # zsh, 'n' sets the NUMERIC_GLOB_SORT option
# covers/1.pdf covers/2.pdf covers/3.pdf ...

pdfunite **/*.pdf(n)  covers/1-16.pdf

Notes ↓

What if playlist is private ↓

Windows example:

yt-dlp.exe --cookies-from-browser firefox -f 140 -o %(title)s.%(ext)s --restrict-filename https://www.youtube.com/playlist?list=abcdefg

audio mine