vlc.py 文件源码

def audio_output_device_get(self):
        '''Get the current audio output device identifier.
        This complements L{audio_output_device_set}().
        @warning: The initial value for the current audio output device identifier
        may not be set or may be some unknown value. A LibVLC application should
        compare this value against the known device identifiers (e.g. those that
        were previously retrieved by a call to L{audio_output_device_enum} or
        L{audio_output_device_list_get}) to find the current audio output device.
        It is possible that the selected audio output device changes (an external
        change) without a call to L{audio_output_device_set}. That may make this
        method unsuitable to use if a LibVLC application is attempting to track
        dynamic audio device changes as they happen.
        @return: the current audio output device identifier None if no device is selected or in case of error (the result must be released with free() or L{free}()).
        @version: LibVLC 3.0.0 or later.
        '''
        return libvlc_audio_output_device_get(self)