From 4ec060f9465ad1b2151fdf36671681cd9900fc63 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kacper=20Michaj=C5=82ow?= <kasper93@gmail.com>
Date: Fri, 21 Jun 2024 17:53:30 +0200
Subject: [PATCH] vo_tct: clear backbuffer on reconfig

We were drawing garbage data after reconfig, if there is no video
frame ready or with --force-window without video track.

Found by OSS-Fuzz.
---
 video/out/vo_tct.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/video/out/vo_tct.c b/video/out/vo_tct.c
index 127ca880bd..da492cca6f 100644
--- a/video/out/vo_tct.c
+++ b/video/out/vo_tct.c
@@ -243,6 +243,8 @@ static int reconfig(struct vo *vo, struct mp_image_params *params)
     if (!p->frame)
         return -1;
 
+    mp_image_clear(p->frame, 0, 0, p->frame->w, p->frame->h);
+
     if (mp_sws_reinit(p->sws) < 0)
         return -1;