我可以在我的音乐文件夹中按艺术家列出我的 .mp3 文件吗？
我无法在预览中查看歌曲的任何标签（艺术家/专辑/歌曲标题）...
答案1
有一个python脚本（这里）由 jmdsdf 编写，为 nautilus 添加了一些额外的列，用于分析 MP3 的元数据并创建额外的列以供查看。
这是脚本：
#!/usr/bin/python
# this script can installed to the current user account by running the following commands:
# sudo apt-get install python-nautilus python-mutagen python-pyexiv2 python-kaa-metadata python-pypdf
# mkdir ~/.nautilus/python-extensions
# cp bsc-v2.py ~/.nautilus/python-extensions
# chmod a+x ~/.nautilus/python-extensions/bsc-v2.py
# alternatively, you can be able to place the script in:
# /usr/lib/nautilus/extensions-2.0/python/
# change log:
# geb666: original bsc.py, based on work by Giacomo Bordiga
# jmdsdf: version 2 adds extra ID3 and EXIF tag support
# jmdsdf: added better error handling for ID3 tags, added mp3 length support, distinguished
# between exif image size and true image size
# SabreWolfy: set consistent hh:mm:ss format, fixed bug with no ID3 information
# throwing an unhandled exception
# jmdsdf: fixed closing file handles with mpinfo (thanks gueba)
# jmdsdf: fixed closing file handles when there's an exception (thanks Pitxyoki)
# jmdsdf: added video parsing (work based on enbeto, thanks!)
# jmdsdf: added FLAC audio parsing through kaa.metadata (thanks for the idea l-x-l)
# jmdsdf: added trackno, added mkv file support (thanks ENigma885)
# jmdsdf: added date/album for flac/video (thanks eldon.t)
# jmdsdf: added wav file support thru pyexiv2
# jmdsdf: added sample rate file support thru mutagen and kaa (thanks for the idea N'ko)
# jmdsdf: fix with tracknumber for FLAC, thanks l-x-l
# draxus: support for pdf files
# jmdsdf: added more error handling for imports (thanks for the idea draxus)
import os
import urllib
import nautilus
# for id3 support
try:
from mutagen.easyid3 import EasyID3
from mutagen.mp3 import MPEGInfo
except: print "Python Mutagen library not found?"
# for exif support
try: import pyexiv2
except: print "Python pyexiv2 library not found?"
# for reading videos. for future improvement, this can also read mp3!
try: import kaa.metadata
except: print "Python KAA library not found?"
# for reading image dimensions
try: from PIL import Image
except: print "Python Image library not found?"
# for reading pdf
try: from pyPdf import PdfFileReader
except: print "Python pyPDF library not found?"
class ColumnExtension(nautilus.ColumnProvider, nautilus.InfoProvider):
def __init__(self):
pass
def get_columns(self):
return (
nautilus.Column("NautilusPython::title_column","title","Title","Song title"),
nautilus.Column("NautilusPython::album_column","album","Album","Album"),
nautilus.Column("NautilusPython::artist_column","artist","Artist","Artist"),
nautilus.Column("NautilusPython::tracknumber_column","tracknumber","Track","Track number"),
nautilus.Column("NautilusPython::genre_column","genre","Genre","Genre"),
nautilus.Column("NautilusPython::date_column","date","Date","Date"),
nautilus.Column("NautilusPython::bitrate_column","bitrate","Bitrate","Audio Bitrate in kilo bits per second"),
nautilus.Column("NautilusPython::samplerate_column","samplerate","Sample rate","Sample rate in Hz"),
nautilus.Column("NautilusPython::length_column","length","Length","Length of audio"),
nautilus.Column("NautilusPython::exif_datetime_original_column","exif_datetime_original","EXIF Dateshot ","Get the photo capture date from EXIF data"),
nautilus.Column("NautilusPython::exif_software_column","exif_software","EXIF Software","EXIF - software used to save image"),
nautilus.Column("NautilusPython::exif_flash_column","exif_flash","EXIF flash","EXIF - flash mode"),
nautilus.Column("NautilusPython::exif_pixeldimensions_column","exif_pixeldimensions","EXIF Image Size","Image size - pixel dimensions as reported by EXIF data"),
nautilus.Column("NautilusPython::pixeldimensions_column","pixeldimensions","Image Size","Image/video size - actual pixel dimensions"),
)
def update_file_info(self, file):
# set defaults to blank
file.add_string_attribute('title', '')
file.add_string_attribute('album', '')
file.add_string_attribute('artist', '')
file.add_string_attribute('tracknumber', '')
file.add_string_attribute('genre', '')
file.add_string_attribute('date', '')
file.add_string_attribute('bitrate', '')
file.add_string_attribute('samplerate', '')
file.add_string_attribute('length', '')
file.add_string_attribute('exif_datetime_original', '')
file.add_string_attribute('exif_software', '')
file.add_string_attribute('exif_flash', '')
file.add_string_attribute('exif_pixeldimensions', '')
file.add_string_attribute('pixeldimensions', '')
if file.get_uri_scheme() != 'file':
return
# strip file:// to get absolute path
filename = urllib.unquote(file.get_uri()[7:])
# mp3 handling
if file.is_mime_type('audio/mpeg'):
# attempt to read ID3 tag
try:
audio = EasyID3(filename)
# sometimes the audio variable will not have one of these items defined, that's why
# there is this long try / except attempt
try: file.add_string_attribute('title', audio["title"][0])
except: file.add_string_attribute('title', "[n/a]")
try: file.add_string_attribute('album', audio["album"][0])
except: file.add_string_attribute('album', "[n/a]")
try: file.add_string_attribute('artist', audio["artist"][0])
except: file.add_string_attribute('artist', "[n/a]")
try: file.add_string_attribute('tracknumber', audio["tracknumber"][0])
except: file.add_string_attribute('tracknumber', "[n/a]")
try: file.add_string_attribute('genre', audio["genre"][0])
except: file.add_string_attribute('genre', "[n/a]")
try: file.add_string_attribute('date', audio["date"][0])
except: file.add_string_attribute('date', "[n/a]")
except:
# [SabreWolfy] some files have no ID3 tag and will throw this exception:
file.add_string_attribute('title', "[no ID3]")
file.add_string_attribute('album', "[no ID3]")
file.add_string_attribute('artist', "[no ID3]")
file.add_string_attribute('tracknumber', "[no ID3]")
file.add_string_attribute('genre', "[no ID3]")
file.add_string_attribute('date', "[no ID3]")
# try to read MP3 information (bitrate, length, samplerate)
try:
mpfile = open (filename)
mpinfo = MPEGInfo (mpfile)
file.add_string_attribute('bitrate', str(mpinfo.bitrate/1000) + " Kbps")
file.add_string_attribute('samplerate', str(mpinfo.sample_rate) + " Hz")
# [SabreWolfy] added consistent formatting of times in format hh:mm:ss
# [SabreWolfy[ to allow for correct column sorting by length
mp3length = "%02i:%02i:%02i" % ((int(mpinfo.length/3600)), (int(mpinfo.length/60%60)), (int(mpinfo.length%60)))
mpfile.close()
file.add_string_attribute('length', mp3length)
except:
file.add_string_attribute('bitrate', "[n/a]")
file.add_string_attribute('length', "[n/a]")
file.add_string_attribute('samplerate', "[n/a]")
try:
mpfile.close()
except: pass
# image handling
if file.is_mime_type('image/jpeg') or file.is_mime_type('image/png') or file.is_mime_type('image/gif') or file.is_mime_type('image/bmp'):
# EXIF handling routines
try:
img = pyexiv2.Image(filename)
img.readMetadata()
file.add_string_attribute('exif_datetime_original',str(img['Exif.Photo.DateTimeOriginal']))
file.add_string_attribute('exif_software',str(img['Exif.Image.Software']))
file.add_string_attribute('exif_flash',str(img['Exif.Photo.Flash']))
file.add_string_attribute('exif_pixeldimensions',str(img['Exif.Photo.PixelXDimension'])+'x'+str(img['Exif.Photo.PixelYDimension']))
except:
# no exif data?
file.add_string_attribute('exif_datetime_original',"")
file.add_string_attribute('exif_software',"")
file.add_string_attribute('exif_flash',"")
file.add_string_attribute('exif_pixeldimensions',"")
# try read image info directly
try:
im = Image.open(filename)
file.add_string_attribute('pixeldimensions',str(im.size[0])+'x'+str(im.size[1]))
except:
file.add_string_attribute('pixeldimensions',"[image read error]")
# video/flac handling
if file.is_mime_type('video/x-msvideo') | file.is_mime_type('video/mpeg') | file.is_mime_type('video/x-ms-wmv') | file.is_mime_type('video/mp4') | file.is_mime_type('audio/x-flac') | file.is_mime_type('video/x-flv') | file.is_mime_type('video/x-matroska') | file.is_mime_type('audio/x-wav'):
try:
info=kaa.metadata.parse(filename)
try: file.add_string_attribute('length',"%02i:%02i:%02i" % ((int(info.length/3600)), (int(info.length/60%60)), (int(info.length%60))))
except: file.add_string_attribute('length','[n/a]')
try: file.add_string_attribute('pixeldimensions', str(info.video[0].width) + 'x'+ str(info.video[0].height))
except: file.add_string_attribute('pixeldimensions','[n/a]')
try: file.add_string_attribute('bitrate',str(round(info.audio[0].bitrate/1000)))
except: file.add_string_attribute('bitrate','[n/a]')
try: file.add_string_attribute('samplerate',str(int(info.audio[0].samplerate))+' Hz')
except: file.add_string_attribute('samplerate','[n/a]')
try: file.add_string_attribute('title', info.title)
except: file.add_string_attribute('title', '[n/a]')
try: file.add_string_attribute('artist', info.artist)
except: file.add_string_attribute('artist', '[n/a]')
try: file.add_string_attribute('genre', info.genre)
except: file.add_string_attribute('genre', '[n/a]')
try: file.add_string_attribute('tracknumber',info.trackno)
except: file.add_string_attribute('tracknumber', '[n/a]')
try: file.add_string_attribute('date',info.userdate)
except: file.add_string_attribute('date', '[n/a]')
try: file.add_string_attribute('album',info.album)
except: file.add_string_attribute('album', '[n/a]')
except:
file.add_string_attribute('length','error')
file.add_string_attribute('pixeldimensions','error')
file.add_string_attribute('bitrate','error')
file.add_string_attribute('samplerate','error')
file.add_string_attribute('title','error')
file.add_string_attribute('artist','error')
file.add_string_attribute('genre','error')
file.add_string_attribute('track','error')
file.add_string_attribute('date','error')
file.add_string_attribute('album','error')
# pdf handling
if file.is_mime_type('application/pdf'):
try:
f = open(filename, "rb")
pdf = PdfFileReader(f)
try: file.add_string_attribute('title', pdf.getDocumentInfo().title)
except: file.add_string_attribute('title', "[n/a]")
try: file.add_string_attribute('artist', pdf.getDocumentInfo().author)
except: file.add_string_attribute('artist', "[n/a]")
f.close()
except:
file.add_string_attribute('title', "[no info]")
file.add_string_attribute('artist', "[no info]")
self.get_columns()