From 96d595b129c7f2a8948d5bd2d5573a6f177dd4df Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michael@niedermayer.cc>
Date: Sat, 8 Jun 2024 20:46:28 +0200
Subject: [PATCH] avformat/subfile: Assert that whence is a known case

This may help CID1452449 Uninitialized scalar variable

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 426d8c84c37064eef93bbcfaffd886d00a9a4ee8)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 libavformat/subfile.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavformat/subfile.c b/libavformat/subfile.c
index 68d846ab15..e6712806a9 100644
--- a/libavformat/subfile.c
+++ b/libavformat/subfile.c
@@ -137,6 +137,8 @@ static int64_t subfile_seek(URLContext *h, int64_t pos, int whence)
     case SEEK_END:
         new_pos = end + pos;
         break;
+    default:
+        av_assert0(0);
     }
     if (new_pos < c->start)
         return AVERROR(EINVAL);