youtube2mp3

#!/bin/bash

# Convert a Youtube video or playlist specified by a passed URL to mp3, use
# mp3tag to write ID3 tags. Arguments are passed to youtube-dl, except -a to
# set the album name. Note: separate arguments to pass on with `--` to avoid
# getopts conflict.

TEEFN=/tmp/youtube2mp3-$RANDOM

while getopts "a:" OPT; do
    case $OPT in
        a ) ALBUM=$OPTARG ;;
    esac
done
shift $((OPTIND-1))

[[ -n "$ALBUM" ]] && ALBUMOPTS="-a$ALBUM"

nice -19 youtube-dl -x -i \
	--audio-format=mp3 --embed-thumbnail --audio-quality=2 \
	-o '%(title)s.%(ext)s' $@ | tee $TEEFN

cat $TEEFN | perl -nle 'print quotemeta($1) if /Destination:\s*(.*?\.mp3)/' | \
	xargs -I'{}' mp3tag -t "$ALBUMOPTS" '{}' 
rm $TEEFN