+diff -ru a/libavfilter/af_aformat.c b/libavfilter/af_aformat.c
--- a/libavfilter/af_aformat.c 2018-07-17 03:27:41.000000000 -0600
-+++ b/libavfilter/af_aformat.c 2019-03-16 17:55:28.449442750 -0600
++++ b/libavfilter/af_aformat.c 2019-08-08 18:20:22.150540943 -0600
@@ -109,6 +109,16 @@
return 0;
}