libavcodec/vorbis_enc.c:863: error: Uninitialized Value
  The value read from pv was never initialized.

libavcodec/vorbis_enc.c:863:34: 
861.                             float vec[book->ndimentions], * pv = vec;
862.                             for (dim = book->ndimentions; dim--; ) {
863.                                 *pv++ = coeffs[a2 + b2];
                                      ^
864.                                 if ((a2 += samples) == s) {
865.                                     a2=0;
