Totally remove prev_mi in VP9 decoder.
authorhkuang <hkuang@google.com>
Mon, 3 Nov 2014 19:23:22 +0000 (11:23 -0800)
committerhkuang <hkuang@google.com>
Thu, 6 Nov 2014 00:14:30 +0000 (16:14 -0800)
commit4cc7c5a17fd371ea036428afb31606d2e6e77bf4
tree018f7b84534faf69d670e510db1425853a51c36f
parent343acaa8f2233acfe427a8e3557efa7bae092d77
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
vp9/common/vp9_alloccommon.c
vp9/common/vp9_alloccommon.h
vp9/common/vp9_entropymode.c
vp9/common/vp9_onyxc_int.h
vp9/decoder/vp9_decoder.c
vp9/encoder/vp9_encoder.c