patched ffmpeg nov 2

source/patched-ffmpeg-mt/libavfilter/avfiltergraph.c

 /*
  * filter graphs
  * copyright (c) 2008 Vitor Sessak
  * copyright (c) 2007 Bobby Bingham
  *
  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
@@ skipping 184 matching lines @@
     if(query_formats(graph, log_ctx))
         return -1;
 
     /* Once everything is merged, it's possible that we'll still have
      * multiple valid media format choices. We pick the first one. */
     pick_formats(graph);
 
     return 0;
 }
 
+int avfilter_graph_config(AVFilterGraph *graphctx, AVClass *log_ctx)
+{
+    int ret;
+
+    if ((ret = avfilter_graph_check_validity(graphctx, log_ctx)))
+        return ret;
+    if ((ret = avfilter_graph_config_formats(graphctx, log_ctx)))
+        return ret;
+    if ((ret = avfilter_graph_config_links(graphctx, log_ctx)))
+        return ret;
+
+    return 0;
+}