libavcodec/dvdsubenc.c:189: error: Uninitialized Value
  The value read from offset2[_] was never initialized.

libavcodec/dvdsubenc.c:189:9: 
187.         // offset1, offset2
188.         bytestream_put_be16(&q, offset1[object_id]);
189.         bytestream_put_be16(&q, offset2[object_id]);
             ^
190.     }
191.     *q++ = 0x01; // start command
