1 files changed, 14 insertions, 0 deletions
diff --git a/vp9/common/vp9_idct.h b/vp9/common/vp9_idct.h
index 430cec083..3e0ee4b63 100644
--- a/vp9/common/vp9_idct.h
+++ b/vp9/common/vp9_idct.h
@@ -13,6 +13,13 @@
 
 #include "./vpx_config.h"
 
+#define ROUND_POWER_OF_TWO(value, n) (((value) + (1 << ((n) - 1))) >> (n))
+
+/* If we don't want to use ROUND_POWER_OF_TWO macro
+static INLINE int16_t round_power_of_two(int16_t value, int n) {
+  return (value + (1 << (n - 1))) >> n;
+}*/
+
 // Constants and Macros used by all idct/dct functions
 #define DCT_CONST_BITS 14
 #define DCT_CONST_ROUNDING  (1 << (DCT_CONST_BITS - 1))
@@ -61,4 +68,11 @@ 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