libvpx: Pull from upstream

source/libvpx/vp8/encoder/denoising.c

 /*
  *  Copyright (c) 2012 The WebM project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 393 matching lines @@
     unsigned int motion_magnitude2;
     unsigned int sse_thresh;
     int sse_diff_thresh = 0;
     // Spatial loop filter: only applied selectively based on
     // temporal filter state of block relative to top/left neighbors.
     int apply_spatial_loop_filter = 1;
     MV_REFERENCE_FRAME frame = x->best_reference_frame;
     MV_REFERENCE_FRAME zero_frame = x->best_zeromv_reference_frame;
 
     enum vp8_denoiser_decision decision = FILTER_BLOCK;
-    enum vp8_denoiser_decision decision_u = FILTER_BLOCK;
-    enum vp8_denoiser_decision decision_v = FILTER_BLOCK;
+    enum vp8_denoiser_decision decision_u = COPY_BLOCK;
+    enum vp8_denoiser_decision decision_v = COPY_BLOCK;
 
     if (zero_frame)
     {
         YV12_BUFFER_CONFIG *src = &denoiser->yv12_running_avg[frame];
         YV12_BUFFER_CONFIG *dst = &denoiser->yv12_mc_running_avg;
         YV12_BUFFER_CONFIG saved_pre,saved_dst;
         MB_MODE_INFO saved_mbmi;
         MACROBLOCKD *filter_xd = &x->e_mbd;
         MB_MODE_INFO *mbmi = &filter_xd->mode_info_context->mbmi;
         int sse_diff = 0;
@@ skipping 200 matching lines @@
       }
       if (apply_filter) {
         // Update the signal block |x|. Pixel changes are only to top and/or
         // left boundary pixels: can we avoid full block copy here.
         vp8_copy_mem16x16(
             denoiser->yv12_running_avg[INTRA_FRAME].y_buffer + recon_yoffset,
             y_stride, x->thismb, 16);
       }
     }
 }