libavcodec/v210enc.c:92: error: Uninitialized Value
  The value read from val was never initialized.

libavcodec/v210enc.c:92:13: 
90.         }
91.         if (w < avctx->width - 3) {
92.             val |=((*u++ & 0xFFC0) <<  4) |
                ^
93.                   ((*y++ & 0xFFC0) << 14);
94.             bytestream_put_le32(&p, val);
