Tipo de devolución de llamada VLC Python EventManager?

Question

Tengo problemas para conectar un controlador de eventos para indicar cuándo una canción ha terminado de reproducirse cuando se utilizan los enlaces de VLC Python. La función event_attach se queja del tipo de devolución de llamada.

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 

Errores:

self.vlc_events.event_attach(vlc.EventType.MediaPlayerEndReached, self.SongFinished, 1) 
return libvlc_event_attach(self, i_event_type, f_callback, user_data) 
    ArgumentError: argument 3: <type 'exceptions.TypeError'>: wrong type 

Answer 1

encontrado, VLC.py incluye una pequeña función ctypes decorador para devoluciones de llamada de embalaje:

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

Para usar:

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

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

Answer 2

Aquí es el código básico para el más reciente vlc.py utilizando el event_manager:

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)