libavcodec/msmpeg4.c:1839: error: Uninitialized Value
  The value read from dc_pred_dir was never initialized.

libavcodec/msmpeg4.c:1839:9: 
1837.  not_coded:
1838.     if (s->mb_intra) {
1839.         mpeg4_pred_ac(s, block, n, dc_pred_dir);
              ^
1840.         if (s->ac_pred) {
1841.             i = 63; /* XXX: not optimal */
