From 2b67137daa488b2de4c86fd025ab9db576a1fb9a Mon Sep 17 00:00:00 2001
From: Niklas Haas <git@haasn.dev>
Date: Mon, 15 Sep 2025 18:02:16 +0200
Subject: [PATCH] avfilter/vf_idet: correctly reset pixdesc on format change

---
 libavfilter/vf_idet.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libavfilter/vf_idet.c b/libavfilter/vf_idet.c
index 74baa20227..7ec8b088be 100644
--- a/libavfilter/vf_idet.c
+++ b/libavfilter/vf_idet.c
@@ -283,6 +283,7 @@ static int filter_frame(AVFilterLink *link, AVFrame *picref)
 
         av_frame_free(&idet->cur );
         av_frame_free(&idet->next);
+        idet->csp = NULL;
     }
 
     idet->prev = idet->cur;