Create cue sheet for a list of id3-tagged audio files

cuer.py

#!/usr/bin/env python3

from sys import argv
from mediafile import MediaFile


def main():
    args = argv[1:]

    first_file = True
    lines = []

    for filename in args:
        tags = MediaFile(filename)
        cuefile = tags.albumartist + " - " + tags.album + ".cue"

        if first_file:
            lines.append('REM DATE ' + str(tags.year))
            lines.append('REM GENRE ' + tags.genre)
            lines.append('PERFORMER "' + tags.albumartist + '"')
            lines.append('TITLE "' + tags.album + '"')

            first_file = False

        lines.append('FILE "' + filename + '" WAVE')
        lines.append('\tTRACK ' + format(tags.track, '02') + " AUDIO")
        lines.append('\t\tTITLE "' + tags.title + '"')
        lines.append('\t\tPERFORMER "' + tags.artist + '"')
        lines.append('\t\tINDEX 01 00:00:00')

    cue = open(cuefile,"w+")
    cue.write("\n".join(lines))
    cue.close()


if __name__ == "__main__":
    main()

Assumes you have ffmpeg up and running.

Sorry for such stupid question, but how to use this script? running script itself in the folder full od dsf makes nothing

The syntax should be something like ./cuer.rb *.dsf

Running this on a bunch of .dsf with ffmpeg installed yields:

./cuer.rb:19:in '<main>': undefined method '[]' for nil:NilClass (NoMethodError)

I made pretty much the same script in Pyhon:

#!/usr/bin/env python

from sys import argv
from argparse import ArgumentParser
import subprocess
import json
import os


def main():
    args = parse_args()

    first_file = True
    for filename in args.src:
        result = subprocess.run(['ffprobe', '-v', 'quiet', '-print_format', 'json', '-show_format', filename],
                                stdout=subprocess.PIPE)
        metadata = json.loads(result.stdout)['format']

        if first_file:
            print('REM GENRE ' + metadata['tags']['genre'])
            print('REM DATE ' + metadata['tags']['date'])
            print('REM PERFORMER "' + metadata['tags']['artist'] + '"')
            print('REM TITLE "' + metadata['tags']['album'] + '"')

            first_file = False

        print_file_info(os.path.basename(metadata['filename']), metadata['tags'])


def print_file_info(filename, tags):
    print('FILE "' + filename + '" WAVE')
    print('  TRACK ' + tags['track'] + ' AUDIO')
    print('    TITLE "' + tags['title'] + '"')
    print('    PERFORMER "' + tags['artist'] + '"')
    print('    INDEX 01 00:00:00')


def parse_args():
    parser = ArgumentParser()
    parser.add_argument('--src', nargs='*')
    raw_args = argv[1:]
    args = parser.parse_args(raw_args)
    return args


if __name__ == "__main__":
    main()

Syntax:
./cuer.py --src some/folder/*.dsf

Thanks, @klizas! I rewrote it using Mutagen.