Function gstreamer_audio_sys::gst_audio_base_sink_set_custom_slaving_callback

pub unsafe extern "C" fn gst_audio_base_sink_set_custom_slaving_callback(
    sink: *mut GstAudioBaseSink, 
    callback: GstAudioBaseSinkCustomSlavingCallback, 
    user_data: gpointer, 
    notify: GDestroyNotify
)