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 395 matching lines @@
     }
     vpx_memset(denoiser->yv12_last_source.buffer_alloc, 0,
                denoiser->yv12_last_source.frame_size);
 
     denoiser->denoise_state = vpx_calloc((num_mb_rows * num_mb_cols), 1);
     vpx_memset(denoiser->denoise_state, 0, (num_mb_rows * num_mb_cols));
     vp8_denoiser_set_parameters(denoiser, mode);
     denoiser->nmse_source_diff = 0;
     denoiser->nmse_source_diff_count = 0;
     // TODO(marpan): Adjust thresholds, including effect on resolution.
-    denoiser->threshold_aggressive_mode = 40;
+    denoiser->threshold_aggressive_mode = 35;
     if (width * height > 640 * 480)
-      denoiser->threshold_aggressive_mode = 180;
+      denoiser->threshold_aggressive_mode = 150;
+    else if (width * height > 1280 * 720)
+      denoiser->threshold_aggressive_mode = 1400;
     return 0;
 }
 
 
 void vp8_denoiser_free(VP8_DENOISER *denoiser)
 {
     int i;
     assert(denoiser);
 
     for (i = 0; i < MAX_REF_FRAMES ; i++)
@@ skipping 251 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);
       }
     }
 }