commit 9e0976a464b0e27c4614d8114821cd972906b763
author Jingning Han <jingning@google.com> Tue Dec 27 17:52:42 2016 -0800
committer Jingning Han <jingning@google.com> Wed Dec 28 21:39:36 2016 +0000
tree 48bbc22d5efe4c696ab437f3fadb75b6853fb9fd
parent 24f24a54e73d7fcc3536d9325c62c5bf91c84b3c

Support sub8x8 chroma component prediction

This commit allows the sub8x8 blocks to compose and filter their
chroma components for supertx in cb4x4 mode. The coding gains of
supertx and cb4x4 are largely additive:

          supertx      cb4x4       cb4x4 + supertx
lowres     -1.0%       -2.7%        -3.64%
midres     -0.8%       -1.3%        -2.10%

Change-Id: Ie7d09f6fceb36ce375e56773728f05dd628786fe

av1/common/reconinter.c

diff --git a/av1/common/reconinter.c b/av1/common/reconinter.c
index aff3df2..11912ac 100644
--- a/av1/common/reconinter.c
+++ b/av1/common/reconinter.c
@@ -1007,8 +1007,8 @@
 
 #if CONFIG_SUPERTX
 #if CONFIG_CB4X4
-static const uint8_t mask_4[4] = { 64, 62, 12, 0 };
-static const uint8_t mask_4_uv[4] = { 64, 62, 12, 0 };
+static const uint8_t mask_4[4] = { 64, 52, 12, 0 };
+static const uint8_t mask_4_uv[4] = { 64, 52, 12, 0 };
 #endif  // CONFIG_CB4X4
 static const uint8_t mask_8[8] = { 64, 64, 62, 52, 12, 2, 0, 0 };