From 9847380f5f5a3850ecc9f32fa310a7e5e3f703f7 Mon Sep 17 00:00:00 2001
From: Paul B Mahol <onemda@gmail.com>
Date: Wed, 2 Oct 2019 10:54:45 +0200
Subject: [PATCH] avfilter/vf_elbg: stop leaking frame on error

---
 libavfilter/vf_elbg.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libavfilter/vf_elbg.c b/libavfilter/vf_elbg.c
index 396af82f77..b59da9ec85 100644
--- a/libavfilter/vf_elbg.c
+++ b/libavfilter/vf_elbg.c
@@ -178,8 +178,10 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
         AVFrame *out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
         uint32_t *pal;
 
-        if (!out)
+        if (!out) {
+            av_frame_free(&frame);
             return AVERROR(ENOMEM);
+        }
         out->pts = frame->pts;
         av_frame_free(&frame);
         pal = (uint32_t *)out->data[1];