libavcodec/wmavoice.c:1068: error: Uninitialized Value
  The value read from last_block_pitch was never initialized.

libavcodec/wmavoice.c:1068:17: 
1066.                 block_pitch = get_bits(gb, s->block_pitch_nbits);
1067.             } else
1068.                 block_pitch = last_block_pitch - s->block_delta_pitch_hrange +
                      ^
1069.                                  get_bits(gb, s->block_delta_pitch_nbits);
1070.             /* Convert last_ so that any next delta is within _range */
