--- trunk/xvidcore/src/bitstream/bitstream.c	2010/12/28 19:19:57	1928
+++ trunk/xvidcore/src/bitstream/bitstream.c	2019/01/17 14:14:02	2167
@@ -20,7 +20,7 @@
  *  along with this program ; if not, write to the Free Software
  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  *
- * $Id: bitstream.c,v 1.61 2010-12-28 19:19:43 Isibaar Exp $
+ * $Id$
  *
  ****************************************************************************/
 
@@ -129,8 +129,7 @@
 		}
 	}
 
-	mbnum = BitstreamGetBits(bs, mbnum_bits);		/* macroblock_number */
-	DPRINTF(XVID_DEBUG_HEADER, "mbnum %i\n", mbnum);
+	mbnum = (mbnum_bits == 0) ? 0 : BitstreamGetBits(bs, mbnum_bits);		/* macroblock_number */
 
 	if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY)
 	{