Merge remote-tracking branch 'qatar/master'

* qatar/master:
  lavfi: filtfmts: use newer avfilter APIs
Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavfilter/filtfmts.c

@@ -69,6 +69,7 @@ int main(int argc, char **argv)
 {
     AVFilter *filter;
     AVFilterContext *filter_ctx;
+    AVFilterGraph *graph_ctx;
     const char *filter_name;
     const char *filter_args = NULL;
     int i;
@@ -84,6 +85,11 @@ int main(int argc, char **argv)
     if (argc > 2)
         filter_args = argv[2];
 
+    /* allocate graph */
+    graph_ctx = avfilter_graph_alloc();
+    if (!graph_ctx)
+        return 1;
+
     avfilter_register_all();
 
     /* get a corresponding filter and open it */
@@ -92,7 +98,8 @@ int main(int argc, char **argv)
         return 1;
     }
 
-    if (avfilter_open(&filter_ctx, filter, NULL) < 0) {
+    /* open filter and add it to the graph */
+    if (!(filter_ctx = avfilter_graph_alloc_filter(graph_ctx, filter, filter_name))) {
         fprintf(stderr, "Impossible to open filter with name '%s'\n",
                 filter_name);
         return 1;
@@ -123,6 +130,7 @@ int main(int argc, char **argv)
     print_formats(filter_ctx);
 
     avfilter_free(filter_ctx);
+    avfilter_graph_free(&graph_ctx);
     fflush(stdout);
     return 0;
 }