--- mplayer-1.0pre1/libmpcodecs/vd_libmpeg2.c	2003-08-18 16:49:06.000000000 +0200
+++ mplayer-cvs/main/libmpcodecs/vd_libmpeg2.c	2003-10-01 03:49:36.000000000 +0200
@@ -97,6 +97,11 @@
     mp_image_t* mpi=NULL;
     int drop_frame, framedrop=flags&3;
 
+    if (NULL == data) {
+        fprintf(stdout, "DEBUG Error for data to be NULL in vd_libmpeg2.c:decode                       \n");
+        return NULL;
+    }
+
     // append extra 'end of frame' code:
     ((char*)data+len)[0]=0;
     ((char*)data+len)[1]=0;