commit e2db387a5b624e1bc4cbbeace5d3a5faba819a86
author Jingning Han <jingning@google.com> Tue Apr 18 11:50:53 2017 -0700
committer Jingning Han <jingning@google.com> Fri Apr 28 15:04:38 2017 +0000
tree 503a77462ab5210c1ba7abf8513d25787df9eedd
parent 3f429087145c42390f3174ddf8dc5aec3e912208

Process chroma component at bottom-right block

Process the sub8x8 chroma component at the bottom-right 8x8 block.

Change-Id: I193f8cf2d6bdabb57983cbc66fe9722e5b396207

av1/common/onyxc_int.h

diff --git a/av1/common/onyxc_int.h b/av1/common/onyxc_int.h
index 194daf0..6fbce11 100644
--- a/av1/common/onyxc_int.h
+++ b/av1/common/onyxc_int.h
@@ -747,12 +747,23 @@
 #if CONFIG_CHROMA_2X2
   return 1;
 #endif
+
+#if CONFIG_CHROMA_SUB8X8
+  const int bw = mi_size_wide[bsize];
+  const int bh = mi_size_high[bsize];
+
+  int ref_pos = ((mi_row & 0x01) || !(bh & 0x01) || !subsampling_y) &&
+                ((mi_col & 0x01) || !(bw & 0x01) || !subsampling_x);
+
+  return ref_pos;
+#else
   int ref_pos = !(((mi_row & 0x01) && subsampling_y) ||
                   ((mi_col & 0x01) && subsampling_x));
 
   if (bsize >= BLOCK_8X8) ref_pos = 1;
 
   return ref_pos;
+#endif
 }
 
 static INLINE BLOCK_SIZE scale_chroma_bsize(BLOCK_SIZE bsize, int subsampling_x,