如何通过Python-VLC的MediaListPlayer获取当前播放曲目的文件路径？

要获取当前播放曲目的文件路径，可通过MediaListPlayer获取底层MediaPlayer实例，再提取当前Media对象并调用其get_mrl()方法（本地MP3的MRL即为完整文件路径）。

修改后的完整代码 #

import os
import vlc
from vlc import MediaListPlayer

class Music:
    def __init__(self, path):
        self.path = path
        self.get_playlist()
        self.play()
    
    def get_songs(self):
        self.pathlist = []
        for file in os.listdir(self.path):
            if file.endswith('.mp3'):
                self.pathlist.append(os.path.join(self.path, file))

    def get_playlist(self):
        self.player = MediaListPlayer()

        inst = self.player.get_instance()
        playlist = inst.media_list_new()
        
        self.get_songs()
        
        for path in self.pathlist:
            song = inst.media_new(path)
            playlist.add_media(song)

        self.player.set_media_list(playlist)

    def play(self):
        self.player.play()

    def get_current_track_path(self):
        # 获取底层MediaPlayer实例
        media_player = self.player.get_media_player()
        if not media_player:
            return None
        # 获取当前播放的Media对象
        current_media = media_player.get_media()
        if not current_media:
            return None
        # 返回本地文件路径
        return current_media.get_mrl()

# 使用示例
music_player = Music('path/to/music')
# 播放过程中调用获取当前曲目路径
# print(music_player.get_current_track_path())

关键逻辑说明 #

1. 获取底层MediaPlayer：MediaListPlayer是播放列表的上层封装，通过get_media_player()可以拿到负责实际播放的底层MediaPlayer实例。
2. 获取当前Media对象：调用media_player.get_media()得到当前正在播放的媒体对象，未播放时返回None。
3. 提取文件路径：Media对象的get_mrl()方法返回媒体资源定位符，本地MP3文件的MRL就是完整的文件路径。

实时监听曲目切换（可选） #

如果需要在曲目切换时自动获取路径，可以通过vlc的事件监听机制实现：

def on_media_changed(event):
    media = event.u.media
    if media:
        print(f"当前播放曲目: {media.get_mrl()}")

# 在get_playlist方法中添加事件监听
def get_playlist(self):
    self.player = MediaListPlayer()

    inst = self.player.get_instance()
    playlist = inst.media_list_new()
    
    self.get_songs()
    
    for path in self.pathlist:
        song = inst.media_new(path)
        playlist.add_media(song)

    self.player.set_media_list(playlist)
    
    # 绑定曲目切换事件
    media_player = self.player.get_media_player()
    event_manager = media_player.event_manager()
    event_manager.event_attach(vlc.EventType.MediaPlayerMediaChanged, on_media_changed)

内容的提问来源于stack exchange，提问作者MillerTime