libavcodec/utils.c:297: error: Uninitialized Value
  The value read from stride_align[_] was never initialized.

libavcodec/utils.c:297:17: 
295.                 buf->data[i] = buf->base[i];
296.             else
297.                 buf->data[i] = buf->base[i] + ALIGN((buf->linesize[i]*EDGE_WIDTH>>v_shift) + (EDGE_WIDTH>>h_shift), stride_align[i]);
                     ^
298.         }
299.         if(size[1] && !size[2])
