[FFmpeg-cvslog] avfilter/vf_maskfun: fix memleak

[Paul B Mahol]

ffmpeg | branch: master | Paul B Mahol <onemda at gmail.com> | Fri Oct 18 21:57:20 2019 +0200| [3b580f9dfe710cb8832d2d982637cb0728b10bef] | committer: Paul B Mahol

avfilter/vf_maskfun: fix memleak

Fixes #8305

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=3b580f9dfe710cb8832d2d982637cb0728b10bef
---

 libavfilter/vf_maskfun.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/libavfilter/vf_maskfun.c b/libavfilter/vf_maskfun.c
index a8c6466d22..4ceb21b943 100644
--- a/libavfilter/vf_maskfun.c
+++ b/libavfilter/vf_maskfun.c
@@ -248,6 +248,13 @@ static int config_input(AVFilterLink *inlink)
     return 0;
 }
 
+static av_cold void uninit(AVFilterContext *ctx)
+{
+    MaskFunContext *s = ctx->priv;
+
+    av_frame_free(&s->empty);
+}
+
 static const AVFilterPad maskfun_inputs[] = {
     {
         .name           = "default",
@@ -272,6 +279,7 @@ AVFilter ff_vf_maskfun = {
     .description   = NULL_IF_CONFIG_SMALL("Create Mask."),
     .priv_size     = sizeof(MaskFunContext),
     .query_formats = query_formats,
+    .uninit        = uninit,
     .inputs        = maskfun_inputs,
     .outputs       = maskfun_outputs,
     .priv_class    = &maskfun_class,