libavcodec/utils.c:285: error: Uninitialized Value
  The value read from stride_align[_] was never initialized.

libavcodec/utils.c:285:17: 
283.                 buf->data[i] = buf->base[i];
284.             else
285.                 buf->data[i] = buf->base[i] + ALIGN((buf->linesize[i]*EDGE_WIDTH>>v_shift) + (EDGE_WIDTH>>h_shift), stride_align[i]);
                     ^
286.         }
287.         buf->width  = s->width;
