private static extern string libvlc_video_get_aspect_ratio(VlcInputHandle p_input, VlcExceptionHandle p_exception);
private static extern void libvlc_video_set_aspect_ratio( VlcInputHandle p_input, [MarshalAs(UnmanagedType.LPStr)] string aspect_ratio, VlcExceptionHandle p_exception);
private static extern bool libvlc_get_fullscreen(VlcInputHandle p_input, VlcExceptionHandle p_exception);
private static extern int libvlc_video_get_width(VlcInputHandle p_input, VlcExceptionHandle p_exception);
private static extern Int64 libvlc_input_get_time(VlcInputHandle input, VlcExceptionHandle exception);
private static extern void libvlc_set_fullscreen(VlcInputHandle p_input, bool b, VlcExceptionHandle p_exception);
private static extern bool libvlc_input_will_play(VlcInputHandle p_input, VlcExceptionHandle p_exception);
private static extern void libvlc_input_free(VlcInputHandle input);
private static extern void libvlc_input_set_rate(VlcInputHandle p_input, float f, VlcExceptionHandle p_exception);
private static extern Int32 libvlc_input_get_state(VlcInputHandle p_input, VlcExceptionHandle p_exception);
private static extern void libvlc_input_set_position(VlcInputHandle input, float pos, VlcExceptionHandle exception);
private static extern float libvlc_input_get_position(VlcInputHandle input, VlcExceptionHandle exception);
private static extern void libvlc_input_set_time(VlcInputHandle input, Int64 time, VlcExceptionHandle exception);
private static extern void libvlc_toggle_fullscreen(VlcInputHandle p_input, VlcExceptionHandle p_exception);
private static extern bool libvlc_input_has_vout(VlcInputHandle p_input, VlcExceptionHandle p_exception);
private static extern void libvlc_video_take_snapshot( VlcInputHandle p_input, [MarshalAs(UnmanagedType.LPStr)] string file_name, VlcExceptionHandle p_exception);
private static extern float libvlc_input_get_fps(VlcInputHandle p_input, VlcExceptionHandle p_exception);
internal VlcInput(VlcInstanceHandle _inst) { _input = libvlc_playlist_get_input(_inst, _excp); }
private static extern int libvlc_video_reparent(VlcInputHandle p_input, IntPtr hwnd, VlcExceptionHandle p_exception);