libvpx: Pull from upstream

source/libvpx/test/vp9_spatial_svc_encoder.sh

 #!/bin/sh
 ##
 ##  Copyright (c) 2014 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 21 matching lines @@
   local frames_to_encode="10"
   local max_kf="9999"
 
   shift
 
   if [ ! -x "${encoder}" ]; then
     elog "${encoder} does not exist or is not executable."
     return 1
   fi
 
-  eval "${encoder}" -w "${YUV_RAW_INPUT_WIDTH}" -h "${YUV_RAW_INPUT_HEIGHT}" \
-      -k "${max_kf}" -f "${frames_to_encode}" "$@" "${YUV_RAW_INPUT}" \
-      "${output_file}" \
-      ${devnull}
+  eval "${VPX_TEST_PREFIX}" "${encoder}" -w "${YUV_RAW_INPUT_WIDTH}" \
+      -h "${YUV_RAW_INPUT_HEIGHT}" -k "${max_kf}" -f "${frames_to_encode}" \
+      "$@" "${YUV_RAW_INPUT}" "${output_file}" ${devnull}
 
   [ -e "${output_file}" ] || return 1
 }
 
 # Each mode is run with layer count 1-$vp9_ssvc_test_layers.
 vp9_ssvc_test_layers=5
 
 vp9_spatial_svc_mode_i() {
   if [ "$(vp9_encode_available)" = "yes" ]; then
     local test_name="${FUNCNAME}"
@@ skipping 27 matching lines @@
     done
   fi
 }
 
 vp9_spatial_svc_tests="vp9_spatial_svc_mode_i
                        vp9_spatial_svc_mode_altip
                        vp9_spatial_svc_mode_ip
                        vp9_spatial_svc_mode_gf"
 
 run_tests vp9_spatial_svc_encoder_verify_environment "${vp9_spatial_svc_tests}"