libavcodec/wmadec.c:440: error: Uninitialized Value
  The value read from nb_coefs[_] was never initialized.

libavcodec/wmadec.c:440:25: 
438.                     /* if noise coding, the coefficients are not transmitted */
439.                     if (a)
440.                         nb_coefs[ch] -= s->exponent_high_bands[bsize][i];
                             ^
441.                 }
442.             }
