musicdlp/backend/id3pp.py
DarkCat09 9071017dbf
Refactor: unify YDL object and proxy cfg field
This would allow to add sites much simplier
or even drop the ydl_fn_keys.
Main purpose of the refactoring is a code cleanup.
2024-05-28 13:21:23 +04:00

97 lines
3.3 KiB
Python

from pathlib import Path
from mutagen import mp3, id3
from yt_dlp.postprocessor import PostProcessor
import config
import cover
import genius
ENC_UTF8 = 3
class InfoGenPP(PostProcessor):
'''Generates track, artist(s), album, track_number fields
from other info fields if they are not present in current info dict.
Must be run before downloading and post-processing with
FFmpegExtractAudioPP and ID3TagsPP, so use only with
when="pre_process" for correct file path and ID3 tags'''
def run(self, information):
if not 'track' in information:
information['track'] = information['title']
if not 'artist' in information:
artist = information['uploader'].removesuffix(' - Topic')
# <Really-dumb-fix>
if artist == 'LINKIN PARK':
artist = 'Linkin Park'
# </Really-dumb-fix>
information['artist'] = artist
if not 'artists' in information:
information['artists'] = [information['artist']]
if not 'album' in information:
try:
information['album'] = information['playlist'].removeprefix('Album \u2013 ')
except KeyError:
pass
if not 'track_number' in information:
try:
information['track_number'] = information['playlist_index']
except KeyError:
pass
# here was some code for disc_number,
# but it is even not in mutagen ID3 fields list
return [], information
class ID3TagsPP(PostProcessor):
'''Inserts ID3 tags including lyrics (see parser in backend/genius.py).
Must be run after all PPs ()'''
def __init__(self) -> None:
self.cfg = config.get()
super().__init__()
def run(self, information):
file = mp3.MP3(information['filepath'])
title = information['track']
artists: list[str] = information['artists']
file['TIT2'] = id3.TIT2(encoding=ENC_UTF8, text=title)
file['TPE1'] = id3.TPE1(encoding=ENC_UTF8, text=artists) # multiple values are null-separated
if 'album' in information:
file['TALB'] = id3.TALB(encoding=ENC_UTF8, text=information['album'])
if 'release_year' in information:
file['TDRC'] = id3.TDRC(encoding=ENC_UTF8, text=str(information['release_year']))
if 'track_number' in information:
file['TRCK'] = id3.TRCK(encoding=ENC_UTF8, text=str(information['track_number']))
if 'genre' in information:
file['TCON'] = id3.TCON(encoding=ENC_UTF8, text=information['genre'])
if self.cfg.save_lyrics:
try:
lyr_title, lyr_url = genius.search(title, artists[0])
genius.raise_on_irrelevant_result(lyr_title, title, artists[0])
file['USLT'] = id3.USLT(encoding=ENC_UTF8, text=genius.parse(lyr_url))
except:
pass
file.save()
if self.cfg.save_cover:
try:
album_path = Path(information['filepath']).parent
if 'youtube' in information['extractor']:
cover.download_from_yt(information['thumbnail'], album_path)
else:
cover.download(information['thumbnail'], album_path)
except:
pass
return [], information