libavcodec/mpeg4videodec.c:976: error: Uninitialized Value
  The value read from re_size_plus8 was never initialized.

libavcodec/mpeg4videodec.c:976:60: 
974. 
975.                     if(IS_3IV1){
976.                         level= SHOW_SBITS(re, &s->gb, 12); LAST_SKIP_BITS(re, &s->gb, 12);
                                                                ^
977.                     }else{
978.                         if(SHOW_UBITS(re, &s->gb, 1)==0){
