libavcodec/vorbis_enc.c:865: error: Uninitialized Value
  The value read from pv was never initialized.

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