libvpx: Pull from upstream

source/libvpx/vp8/encoder/rdopt.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 819 matching lines @@
         cost += cost_coeffs(mb, x->block + b, PLANE_TYPE_UV,
                     ta + vp8_block2above[b], tl + vp8_block2left[b]);
 
     return cost;
 }
 
 
 static int rd_inter16x16_uv(VP8_COMP *cpi, MACROBLOCK *x, int *rate,
                             int *distortion, int fullpixel)
 {
+    (void)cpi;
+    (void)fullpixel;
+
     vp8_build_inter16x16_predictors_mbuv(&x->e_mbd);
     vp8_subtract_mbuv(x->src_diff,
         x->src.u_buffer, x->src.v_buffer, x->src.uv_stride,
         &x->e_mbd.predictor[256], &x->e_mbd.predictor[320], 8);
 
     vp8_transform_mbuv(x);
     vp8_quantize_mbuv(x);
 
     *rate       = rd_cost_mbuv(x);
     *distortion = vp8_mbuverror(x) / 4;
 
     return RDCOST(x->rdmult, x->rddiv, *rate, *distortion);
 }
 
 static int rd_inter4x4_uv(VP8_COMP *cpi, MACROBLOCK *x, int *rate,
                           int *distortion, int fullpixel)
 {
+    (void)cpi;
+    (void)fullpixel;
+
     vp8_build_inter4x4_predictors_mbuv(&x->e_mbd);
     vp8_subtract_mbuv(x->src_diff,
         x->src.u_buffer, x->src.v_buffer, x->src.uv_stride,
         &x->e_mbd.predictor[256], &x->e_mbd.predictor[320], 8);
 
     vp8_transform_mbuv(x);
     vp8_quantize_mbuv(x);
 
     *rate       = rd_cost_mbuv(x);
     *distortion = vp8_mbuverror(x) / 4;
@@ skipping 1765 matching lines @@
         x->e_mbd.mode_info_context->mbmi.mode = B_PRED;
         rate += rate4x4;
     }
     else
     {
         rate += rate16x16;
     }
 
     *rate_ = rate;
 }