libvpx: Pull from upstream

source/libvpx/vp9/common/vp9_loopfilter.c

 /*
  *  Copyright (c) 2010 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 950 matching lines @@
                   break;
                 }
               }
             }
             break;
         }
       }
       break;
   }
   // The largest loopfilter we have is 16x16 so we use the 16x16 mask
-  // for 32x32 transforms also also.
+  // for 32x32 transforms also.
   lfm->left_y[TX_16X16] |= lfm->left_y[TX_32X32];
   lfm->above_y[TX_16X16] |= lfm->above_y[TX_32X32];
   lfm->left_uv[TX_16X16] |= lfm->left_uv[TX_32X32];
   lfm->above_uv[TX_16X16] |= lfm->above_uv[TX_32X32];
 
   // We do at least 8 tap filter on every 32x32 even if the transform size
   // is 4x4. So if the 4x4 is set on a border pixel add it to the 8x8 and
   // remove it from the 4x4.
   lfm->left_y[TX_8X8] |= lfm->left_y[TX_4X4] & left_border;
   lfm->left_y[TX_4X4] &= ~left_border;
@@ skipping 653 matching lines @@
   lf_data->y_only = 0;
   vpx_memcpy(lf_data->planes, planes, sizeof(lf_data->planes));
 }
 
 int vp9_loop_filter_worker(LFWorkerData *const lf_data, void *unused) {
   (void)unused;
   vp9_loop_filter_rows(lf_data->frame_buffer, lf_data->cm, lf_data->planes,
                        lf_data->start, lf_data->stop, lf_data->y_only);
   return 1;
 }