out of array read fix

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@5142 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavcodec/h263data.h

@@ -274,8 +274,8 @@ const uint16_t ff_mba_max[6]={
      47,  98, 395,1583,6335,9215
 };
 
-const uint8_t ff_mba_length[6]={
-      6,   7,   9,  11,  13,  14
+const uint8_t ff_mba_length[7]={
+      6,   7,   9,  11,  13,  14,  14
 };
 
 const uint8_t ff_h263_loop_filter_strength[32]={