ref: c3bbb29164239a48d948a7de2d6d8a1d161a5a0e
parent: a5397dbaf13c87516bbf404dea35fe49bfe805e3
author: Yunqing Wang <yunqingwang@google.com>
date: Fri Dec 3 06:26:21 EST 2010
Improve MV prediction accuracy to achieve performance gain Add vp8_mv_pred() to better predict starting MV for NEWMV mode in vp8_rd_pick_inter_mode(). Set different search ranges according to MV prediction accuracy, which improves encoder performance without hurting the quality. Also, as Yaowu suggested, using diamond search result as full search starting point and therefore adjusting(reducing) full search range helps the performance. Change-Id: Ie4a3c8df87e697c1f4f6e2ddb693766bba1b77b6