diff --git a/yt_dlp/postprocessor/embedthumbnail.py b/yt_dlp/postprocessor/embedthumbnail.py index 74eff81ef..40f924a8d 100644 --- a/yt_dlp/postprocessor/embedthumbnail.py +++ b/yt_dlp/postprocessor/embedthumbnail.py @@ -98,8 +98,8 @@ def run(self, info): audio = mutagen.id3.ID3(filename) with open(thumbnail_filename, 'rb') as thumbfile: audio['APIC'] = mutagen.id3.APIC( - encoding=mutagen.id3.Encoding.UTF8, mime='image/%s' % thumbnail_ext, type=3, - desc=u'Cover (front)', data=thumbfile.read()) + encoding=mutagen.id3.Encoding.UTF8, mime=f'image/{thumbnail_ext}', + type=mutagen.id3.PictureType.COVER_FRONT, desc='Cover (front)', data=thumbfile.read()) audio.save() temp_filename = filename # Mutagen saves to the original file except Exception as err: