1 files changed, 20 insertions, 0 deletions
diff --git a/vp9/encoder/vp9_encodemb.c b/vp9/encoder/vp9_encodemb.c
index 0d089ce82..0e1523b84 100644
--- a/vp9/encoder/vp9_encodemb.c
+++ b/vp9/encoder/vp9_encodemb.c
@@ -25,6 +25,26 @@
 #include "vp9/encoder/vp9_rdopt.h"
 #include "vp9/encoder/vp9_tokenize.h"
 
+void vp9_setup_interp_filters(MACROBLOCKD *xd,
+                              INTERPOLATION_TYPE mcomp_filter_type,
+                              VP9_COMMON *cm) {
+  if (xd->mi_8x8 && xd->mi_8x8[0]) {
+    MB_MODE_INFO *const mbmi = &xd->mi_8x8[0]->mbmi;
+
+    set_scale_factors(xd, mbmi->ref_frame[0] - LAST_FRAME,
+                          mbmi->ref_frame[1] - LAST_FRAME,
+                          cm->active_ref_scale);
+  } else {
+    set_scale_factors(xd, -1, -1, cm->active_ref_scale);
+  }
+
+  xd->subpix.filter_x = xd->subpix.filter_y =
+      vp9_get_filter_kernel(mcomp_filter_type == SWITCHABLE ?
+                               EIGHTTAP : mcomp_filter_type);
+
+  assert(((intptr_t)xd->subpix.filter_x & 0xff) == 0);
+}
+
 void vp9_subtract_block_c(int rows, int cols,
                           int16_t *diff_ptr, ptrdiff_t diff_stride,
                           const uint8_t *src_ptr, ptrdiff_t src_stride,