From f975cf7cc061b814bc029bb2fc86f656494c4d5c Mon Sep 17 00:00:00 2001
From: Paul B Mahol <onemda@gmail.com>
Date: Wed, 23 Dec 2020 11:59:51 +0100
Subject: [PATCH] avcodec/cfhd: only increase s->level if transform is
 supported

---
 libavcodec/cfhd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/cfhd.c b/libavcodec/cfhd.c
index 17ddcdd2df..aae6bd78db 100644
--- a/libavcodec/cfhd.c
+++ b/libavcodec/cfhd.c
@@ -436,7 +436,7 @@ static int cfhd_decode(AVCodecContext *avctx, void *data, int *got_frame,
             }
             init_plane_defaults(s);
         } else if (tag == SubbandNumber) {
-            if (s->subband_num != 0 && data == 1)  // hack
+            if (s->subband_num != 0 && data == 1 && (s->transform_type == 0 || s->transform_type == 2))  // hack
                 s->level++;
             av_log(avctx, AV_LOG_DEBUG, "Subband number %"PRIu16"\n", data);
             s->subband_num = data;