Merge commit 'f77c9d71615e17414aacbb1720693b800a5a32d3' into release/2.4

* commit 'f77c9d71615e17414aacbb1720693b800a5a32d3':
  rtsp: Make sure we don't write too many transport entries into a fixed-size array

Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavformat/rtsp.c

@@ -931,6 +931,8 @@ static void rtsp_parse_transport(RTSPMessageHeader *reply, const char *p)
             p++;
 
         reply->nb_transports++;
+        if (reply->nb_transports >= RTSP_MAX_TRANSPORTS)
+            break;
     }
 }