Download patch
ref: 0a5024d176e0d12841cc39156d0aeb6f31359544 parent: c17994c6bf7d282924046b95bf7144738693f818 author: volvet <qizh@cisco.com> date: Mon Feb 17 05:24:56 EST 2014
move alloc spatial picture and free spatial picture to CWelsPreProcess