Turn on loop filter

Temporarily use univariate transform size for loop filter.
As compared to VP9 master branch with loop filter turned on, the
compression gains are:

derf  0.671%
mr    0.749%
stdhd 0.886%
hr    1.394%

The encoding speed currently is about 1.3X that of speed 0.

Change-Id: I64788f894e70fde14c5be3159501bedf836e5998

diff --git a/vp9/encoder/vp9_picklpf.c b/vp9/encoder/vp9_picklpf.c
index 4114b64bca3189558657d6b0cdb5755431719c9f..a95f0f46d5ce7ad77c675844e0f9cff8d9fe50df 100644 (file)
--- a/vp9/encoder/vp9_picklpf.c
+++ b/vp9/encoder/vp9_picklpf.c
@@ -188,5 +188,4 @@ void vp9_pick_filter_level(const YV12_BUFFER_CONFIG *sd, VP9_COMP *cpi,
     lf->filter_level = search_filter_level(sd, cpi,
                                            method == LPF_PICK_FROM_SUBIMAGE);
   }
-  lf->filter_level = 0;
 }