vlc.py 文件源码

python
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项目:AlexaOPi 作者: dony71 项目源码 文件源码
def libvlc_audio_output_device_get(mp):
    '''Get the current audio output device identifier.
    This complements L{libvlc_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{libvlc_audio_output_device_enum} or
    L{libvlc_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{libvlc_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.
    @param mp: media player.
    @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{libvlc_free}()).
    @version: LibVLC 3.0.0 or later.
    '''
    f = _Cfunctions.get('libvlc_audio_output_device_get', None) or \
        _Cfunction('libvlc_audio_output_device_get', ((1,),), None,
                    ctypes.c_char_p, MediaPlayer)
    return f(mp)
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