lavfi: replace avfilter_open() with avfilter_graph_alloc_filter().

Since we do not support "standalone" filters not attached to an
AVFilterGraph, we should not have a public function to create such
filters. In addition that function is horribly named, the action it does
cannot be possibly described as "opening" a filter.

1 files changed, 2 insertions, 7 deletions

diff --git a/libavfilter/graphparser.c b/libavfilter/graphparser.c
index 525ae9bd2b..7fbe43b3d0 100644
--- a/libavfilter/graphparser.c
+++ b/libavfilter/graphparser.c
@@ -109,16 +109,11 @@ static int create_filter(AVFilterContext **filt_ctx, AVFilterGraph *ctx, int ind
         return AVERROR(EINVAL);
     }
 
-    ret = avfilter_open(filt_ctx, filt, inst_name);
+    *filt_ctx = avfilter_graph_alloc_filter(ctx, filt, inst_name);
     if (!*filt_ctx) {
         av_log(log_ctx, AV_LOG_ERROR,
                "Error creating filter '%s'\n", filt_name);
-        return ret;
-    }
-
-    if ((ret = avfilter_graph_add_filter(ctx, *filt_ctx)) < 0) {
-        avfilter_free(*filt_ctx);
-        return ret;
+        return AVERROR(ENOMEM);
     }
 
     if (!strcmp(filt_name, "scale") && args && !strstr(args, "flags") &&