From fe6d17ebf4f01b8c407cc90e9e8d6e79b1ca989b Mon Sep 17 00:00:00 2001
From: David Hampton <mythtv@love2code.net>
Date: Mon, 25 Jul 2022 14:31:05 -0400
Subject: [PATCH] Validate video descriptor before checking still picture bit.

---
 mythtv/libs/libmythtv/mpeg/mpegtables.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mythtv/libs/libmythtv/mpeg/mpegtables.cpp b/mythtv/libs/libmythtv/mpeg/mpegtables.cpp
index f9f9fedea6c..3959fefb7b5 100644
--- a/mythtv/libs/libmythtv/mpeg/mpegtables.cpp
+++ b/mythtv/libs/libmythtv/mpeg/mpegtables.cpp
@@ -624,6 +624,7 @@ bool ProgramMapTable::IsStillPicture(const QString& sistandard) const
         if (IsVideo(i, sistandard))
         {
             return StreamInfoLength(i) > 2 &&
+                   (StreamInfo(i)[0] == DescriptorID::video_stream) &&
                    ((StreamInfo(i)[2] & kStillPictureFlag) != 0);
         }
     }