public static extern int avfilter_graph_parse2(AVFilterGraph * @graph, [MarshalAs(UnmanagedType.LPStr)] string @filters, AVFilterInOut ** @inputs, AVFilterInOut ** @outputs);
 public static extern void avfilter_inout_free(AVFilterInOut ** @inout);
 public extern static int avfilter_graph_parse2(AVFilterGraph *graph, [MarshalAs(UnmanagedType.LPStr)] string filters, AVFilterInOut **inputs, AVFilterInOut **outputs);
 public extern static void avfilter_inout_free(AVFilterInOut **inout);
 internal static extern int avfilter_graph_parse_ptr(AVFilterGraph * @graph, [MarshalAs(UnmanagedType.LPStr)] string @filters, AVFilterInOut ** @inputs, AVFilterInOut ** @outputs, void * @log_ctx);