VLC Python事件管理器回调类型？

Question

在使用VLC Python绑定时，我无法附加一个事件处理程序来判断歌曲何时结束播放。event_attach函数正在抱怨回调类型。在

def __init__(self):
    self.vlc = vlc.Instance()
    self.vlc_playlist = self.vlc.media_list_new()
    self.vlc_player = self.vlc.media_list_player_new()
    self.vlc_player.set_media_list(self.vlc_playlist)
    self.vlc_events = self.vlc_player.event_manager()
    self.vlc_events.event_attach(vlc.EventType.MediaPlayerEndReached, self.SongFinished, 1)
    ....
def SongFinished(self, *args, **kwargs):
    pass

错误：

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Answer 1

以下是最近使用event_manager的vlc.py的基本代码：

import vlc
finish = 0

def SongFinished(event):
    global finish
    print "Event reports - finished"
    finish = 1

instance = vlc.Instance()
player = instance.media_player_new()
media = instance.media_new_path('vp1.mp3') #Your audio file here
player.set_media(media)
events = player.event_manager()
events.event_attach(vlc.EventType.MediaPlayerEndReached, SongFinished)
player.play()
while finish == 0:
        sec = player.get_time() / 1000
        m, s = divmod(sec, 60)
        print "%02d:%02d" % (m,s)

注意：媒体播放器有很多事件可以通过这种方式进行监视。在

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Answer 2

找到了，VLC.py公司包含用于包装回调的小decorator ctypes函数：

callbackmethod=ctypes.CFUNCTYPE(None, Event, ctypes.c_void_p)

使用：

@callbackmethod
def SongFinished(self, data):
    print data

.event_attach(vlc.EventType.MediaPlayerEndReached, SongFinished, 1)