Merge "Improve 32x32 forward dct" into experimental

858b60e8 · Yaowu Xu · Gerrit Code Review · eb939f45 · 66d94ac1 · 858b60e8
Commit 858b60e8 authored Feb 27, 2013 by Yaowu Xu Committed by Gerrit Code Review Feb 27, 2013
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vp9/common/vp9_idct.h vp9/common/vp9_idct.h +7 -0

vp9/encoder/vp9_dct.c vp9/encoder/vp9_dct.c +89 -515

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--- a/vp9/common/vp9_idct.h
+++ b/vp9/common/vp9_idct.h
@@ -61,4 +61,11 @@ static INLINE int dct_const_round_shift(int input) {
  assert(INT16_MIN <= rv && rv <= INT16_MAX);
  return rv;
 }
+
+static INLINE int dct_32_round(int input) {
+  int rv = (input + DCT_CONST_ROUNDING) >> DCT_CONST_BITS;
+  assert(-131072 <= rv && rv <= 131071);
+  return rv;
+}
+
 #endif
--- a/vp9/encoder/vp9_dct.c
+++ b/vp9/encoder/vp9_dct.c