On 9/20/2024 10:30 AM, James Almer wrote:
If not, report it as a bug. avfilter_graph_create_filter() will return ENOMEM 
if the
passed filter argument is NULL, which is misleading.

Signed-off-by: James Almer <jamr...@gmail.com>
---
  fftools/ffmpeg_filter.c | 6 +++++-
  1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/fftools/ffmpeg_filter.c b/fftools/ffmpeg_filter.c
index 8b420e68ab..27d74341b5 100644
--- a/fftools/ffmpeg_filter.c
+++ b/fftools/ffmpeg_filter.c
@@ -1444,11 +1444,15 @@ static int insert_filter(AVFilterContext **last_filter, 
int *pad_idx,
                           const char *filter_name, const char *args)
  {
      AVFilterGraph *graph = (*last_filter)->graph;
+    const AVFilter *filter = avfilter_get_by_name(filter_name)

Missing colon added locally...

      AVFilterContext *ctx;
      int ret;
+ if (!filter)
+        return AVERROR_BUG;
+
      ret = avfilter_graph_create_filter(&ctx,
-                                       avfilter_get_by_name(filter_name),
+                                       filter,
                                         filter_name, args, NULL, graph);
      if (ret < 0)
          return ret;

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