vpxenc tests: Relocate vpxenc wrapper.

Move vpxenc() from tools_common.sh to vpxenc.sh.

Change-Id: If3bc1e8616f7e0334d39b560946e467482fe5cf4
diff --git a/test/tools_common.sh b/test/tools_common.sh
index e98bead..0bfefba 100755
--- a/test/tools_common.sh
+++ b/test/tools_common.sh
@@ -182,65 +182,6 @@
   [ "$(vpx_config_option_enabled CONFIG_WEBM_IO)" = "yes" ] && echo yes
 }
 
-# Echoes yes to stdout when vpxenc exists according to vpx_tool_available().
-vpxenc_available() {
-  [ -n $(vpx_tool_available vpxenc) ] && echo yes
-}
-
-# Wrapper function for running vpxenc. Positional parameters are interpreted as
-# follows:
-#   1 - codec name
-#   2 - input width
-#   3 - input height
-#   4 - number of frames to encode
-#   5 - path to input file
-#   6 - path to output file
-#       Note: The output file path must end in .ivf to output an IVF file.
-#   7 - extra flags
-#       Note: Extra flags currently supports a special case: when set to "-"
-#             input is piped to vpxenc via cat.
-vpxenc() {
-  local encoder="${LIBVPX_BIN_PATH}/vpxenc${VPX_TEST_EXE_SUFFIX}"
-  local codec="${1}"
-  local width=${2}
-  local height=${3}
-  local frames=${4}
-  local input=${5}
-  local output="${VPX_TEST_OUTPUT_DIR}/${6}"
-  local extra_flags=${7}
-
-  # Because --ivf must be within the command line to get IVF from vpxenc.
-  if echo "${output}" | egrep -q 'ivf$'; then
-    use_ivf=--ivf
-  else
-    unset use_ivf
-  fi
-
-  if [ "${extra_flags}" = "-" ]; then
-    pipe_input=yes
-    extra_flags=${8}
-  else
-    unset pipe_input
-  fi
-
-  if [ -z "${pipe_input}" ]; then
-    eval "${VPX_TEST_PREFIX}" "${encoder}" --codec=${codec} --width=${width} \
-        --height=${height} --limit=${frames} ${use_ivf} ${extra_flags} \
-        --output="${output}" "${input}" ${devnull}
-  else
-    cat "${input}" \
-        | eval "${VPX_TEST_PREFIX}" "${encoder}" --codec=${codec} \
-            --width=${width} --height=${height} --limit=${frames} ${use_ivf} \
-            ${extra_flags} --output="${output}" - ${devnull}
-  fi
-
-  if [ ! -e "${output}" ]; then
-    # Return non-zero exit status: output file doesn't exist, so something
-    # definitely went wrong.
-    return 1
-  fi
-}
-
 # Filters strings from positional parameter one using the filter specified by
 # positional parameter two. Filter behavior depends on the presence of a third
 # positional parameter. When parameter three is present, strings that match the
diff --git a/test/vpxenc.sh b/test/vpxenc.sh
index f08c048..a89e79f 100755
--- a/test/vpxenc.sh
+++ b/test/vpxenc.sh
@@ -39,6 +39,65 @@
   fi
 }
 
+# Echoes yes to stdout when vpxenc exists according to vpx_tool_available().
+vpxenc_available() {
+  [ -n $(vpx_tool_available vpxenc) ] && echo yes
+}
+
+# Wrapper function for running vpxenc. Positional parameters are interpreted as
+# follows:
+#   1 - codec name
+#   2 - input width
+#   3 - input height
+#   4 - number of frames to encode
+#   5 - path to input file
+#   6 - path to output file
+#       Note: The output file path must end in .ivf to output an IVF file.
+#   7 - extra flags
+#       Note: Extra flags currently supports a special case: when set to "-"
+#             input is piped to vpxenc via cat.
+vpxenc() {
+  local encoder="${LIBVPX_BIN_PATH}/vpxenc${VPX_TEST_EXE_SUFFIX}"
+  local codec="${1}"
+  local width=${2}
+  local height=${3}
+  local frames=${4}
+  local input=${5}
+  local output="${VPX_TEST_OUTPUT_DIR}/${6}"
+  local extra_flags=${7}
+
+  # Because --ivf must be within the command line to get IVF from vpxenc.
+  if echo "${output}" | egrep -q 'ivf$'; then
+    use_ivf=--ivf
+  else
+    unset use_ivf
+  fi
+
+  if [ "${extra_flags}" = "-" ]; then
+    pipe_input=yes
+    extra_flags=${8}
+  else
+    unset pipe_input
+  fi
+
+  if [ -z "${pipe_input}" ]; then
+    eval "${VPX_TEST_PREFIX}" "${encoder}" --codec=${codec} --width=${width} \
+        --height=${height} --limit=${frames} ${use_ivf} ${extra_flags} \
+        --output="${output}" "${input}" ${devnull}
+  else
+    cat "${input}" \
+        | eval "${VPX_TEST_PREFIX}" "${encoder}" --codec=${codec} \
+            --width=${width} --height=${height} --limit=${frames} ${use_ivf} \
+            ${extra_flags} --output="${output}" - ${devnull}
+  fi
+
+  if [ ! -e "${output}" ]; then
+    # Return non-zero exit status: output file doesn't exist, so something
+    # definitely went wrong.
+    return 1
+  fi
+}
+
 vpxenc_vp8_ivf() {
   if [ "$(vpxenc_can_encode_vp8)" = "yes" ]; then
     vpxenc vp8 ${YUV_RAW_INPUT_WIDTH} ${YUV_RAW_INPUT_HEIGHT} ${TEST_FRAMES} \