ref: 4cc7c5a17fd371ea036428afb31606d2e6e77bf4
parent: 343acaa8f2233acfe427a8e3557efa7bae092d77
author: hkuang <hkuang@google.com>
date: Mon Nov 3 06:23:22 EST 2014
Totally remove prev_mi in VP9 decoder. This will save the memory and improve the decode speed due to removing unnecessary memset of big prev_mi array for all the key frames. Decoding a all key frames 1080p video shows speed improve around 2%. Change-Id: I6284a445c1291056e3c15135c3c20d502f791c10