vp9: Set low variance flag when partition is copied.
authorJerome Jiang <jianj@google.com>
Fri, 13 Jan 2017 19:28:27 +0000 (11:28 -0800)
committerJerome Jiang <jianj@google.com>
Tue, 17 Jan 2017 19:14:50 +0000 (11:14 -0800)
commit0c65aed099565c3117dc4d3f89d0e782b4ff7577
tree3bfbd5e0617fe6090b198f64afb77e7391e826e9
parentf217049dbe0df053a60c3cabaef85bbbe613338b
vp9: Set low variance flag when partition is copied.

Also set the flag to 1 when exit early choosing 64x64 block
such that skipping new mv for golden works in these scenerios.

Change the size of prev_segment_id to the number of superblocks
to save memory.

Borg test shows quality regression of 0.012% on average PSNR
and 0.035% on SSIM.

Change-Id: I5014224c8617d439d35c66ece3fed9ae30b31d23
vp9/encoder/vp9_encodeframe.c
vp9/encoder/vp9_encoder.c
vp9/encoder/vp9_encoder.h
vp9/encoder/vp9_speed_features.c