[FFmpeg-devel] [PATCH 1/3] ffmpeg: Don't print graphs if there are no graphs to print

[Mark Thompson]

Avoids writing an empty json blob in setup error cases.
---
 fftools/ffmpeg.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fftools/ffmpeg.c b/fftools/ffmpeg.c
index 964770df23..ad28cff78d 100644
--- a/fftools/ffmpeg.c
+++ b/fftools/ffmpeg.c
@@ -309,7 +309,8 @@ const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
 
 static void ffmpeg_cleanup(int ret)
 {
-    if (print_graphs || print_graphs_file)
+    if ((print_graphs || print_graphs_file) &&
+        (nb_filtergraphs > 0 || nb_output_files > 0))
         print_filtergraphs(filtergraphs, nb_filtergraphs, input_files, nb_input_files, output_files, nb_output_files);
 
     if (do_benchmark) {
-- 
2.47.2