libvpx: Pull from upstream

source/libvpx/vp8/encoder/temporal_filter.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 145 matching lines @@
     int_mv best_ref_mv1_full; /* full-pixel value of best_ref_mv1 */
 
     /* Save input state */
     unsigned char **base_src = b->base_src;
     int src = b->src;
     int src_stride = b->src_stride;
     unsigned char *base_pre = x->e_mbd.pre.y_buffer;
     int pre = d->offset;
     int pre_stride = x->e_mbd.pre.y_stride;
 
+    (void)error_thresh;
+
     best_ref_mv1.as_int = 0;
     best_ref_mv1_full.as_mv.col = best_ref_mv1.as_mv.col >>3;
     best_ref_mv1_full.as_mv.row = best_ref_mv1.as_mv.row >>3;
 
     /* Setup frame pointers */
     b->base_src = &arf_frame->y_buffer;
     b->src_stride = arf_frame->y_stride;
     b->src = mb_offset;
 
     x->e_mbd.pre.y_buffer = frame_ptr->y_buffer;
@@ skipping 334 matching lines @@
         cpi->frames[frames_to_blur-1-frame] = &buf->img;
     }
 
     vp8_temporal_filter_iterate_c (
         cpi,
         frames_to_blur,
         frames_to_blur_backward,
         strength );
 }
 #endif