[FFmpeg-cvslog] avfilter/fsync: Fix memory leak

[Thilo Borgmann]

ffmpeg | branch: master | Thilo Borgmann <thilo.borgmann at mail.de> | Sun Jan  7 13:54:06 2024 +0100| [c03c675d89a917bc530c34fde0c036b341858e13] | committer: Thilo Borgmann

avfilter/fsync: Fix memory leak

Fixes a leak if s->last_frame is still set at the end of filtering.

Found-by: James Almer

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c03c675d89a917bc530c34fde0c036b341858e13
---

 libavfilter/vf_fsync.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libavfilter/vf_fsync.c b/libavfilter/vf_fsync.c
index 58367e78f7..a18f1a009b 100644
--- a/libavfilter/vf_fsync.c
+++ b/libavfilter/vf_fsync.c
@@ -207,6 +207,9 @@ static int activate(AVFilterContext *ctx)
     }
 
 end:
+    if (s->last_frame)
+        av_frame_free(&s->last_frame);
+
     ret = ff_inlink_consume_frame(inlink, &s->last_frame);
     if (ret < 0)
         return ret;