From: James Zern <jzern@google.com>
Date: Thu, 4 Jun 2015 20:05:29 +0000 (-0700)
Subject: vp9_reconintra: fix d45/d63 discrepancies
X-Git-Tag: v1.5.0~607^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=faea038f4f9f7e744b4178c2483007a1390e9e0c;p=libvpx

vp9_reconintra: fix d45/d63 discrepancies

the final index in rows 2, 3 differ from vp8

Change-Id: I0fcea907b4ab44e266c0f1fd77b290d2236b280a
---

diff --git a/vp9/common/vp9_reconintra.c b/vp9/common/vp9_reconintra.c
index f7c01fd1d..610523114 100644
--- a/vp9/common/vp9_reconintra.c
+++ b/vp9/common/vp9_reconintra.c
@@ -418,19 +418,18 @@ void vp9_d63_predictor_4x4_c(uint8_t *dst, ptrdiff_t stride,
   const int E = above[4];
   const int F = above[5];
   const int G = above[6];
-  const int H = above[7];
   (void)left;
   DST(0, 0) =             AVG2(A, B);
   DST(1, 0) = DST(0, 2) = AVG2(B, C);
   DST(2, 0) = DST(1, 2) = AVG2(C, D);
   DST(3, 0) = DST(2, 2) = AVG2(D, E);
+              DST(3, 2) = AVG2(E, F);  // differs from vp8
 
   DST(0, 1) =             AVG3(A, B, C);
   DST(1, 1) = DST(0, 3) = AVG3(B, C, D);
   DST(2, 1) = DST(1, 3) = AVG3(C, D, E);
   DST(3, 1) = DST(2, 3) = AVG3(D, E, F);
-              DST(3, 2) = AVG3(E, F, G);
-              DST(3, 3) = AVG3(F, G, H);
+              DST(3, 3) = AVG3(E, F, G);  // differs from vp8
 }
 
 static INLINE void d63_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
@@ -467,7 +466,7 @@ void vp9_d45_predictor_4x4_c(uint8_t *dst, ptrdiff_t stride,
   DST(3, 0) = DST(2, 1) = DST(1, 2) = DST(0, 3) = AVG3(D, E, F);
               DST(3, 1) = DST(2, 2) = DST(1, 3) = AVG3(E, F, G);
                           DST(3, 2) = DST(2, 3) = AVG3(F, G, H);
-                                      DST(3, 3) = AVG3(G, H, H);
+                                      DST(3, 3) = H;  // differs from vp8
 }
 
 static INLINE void d45_predictor(uint8_t *dst, ptrdiff_t stride, int bs,