Import aom library

This is the reference implementation for the Alliance for Open Media's av1 video code.

The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36.

1 files changed, 77 insertions, 0 deletions

diff --git a/third_party/aom/build/make/version.sh b/third_party/aom/build/make/version.sh
new file mode 100755
index 000000000..c0eef9f58
--- /dev/null
+++ b/third_party/aom/build/make/version.sh
@@ -0,0 +1,77 @@
+#!/bin/sh
+## Copyright (c) 2016, Alliance for Open Media. All rights reserved
+##
+## This source code is subject to the terms of the BSD 2 Clause License and
+## the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+## was not distributed with this source code in the LICENSE file, you can
+## obtain it at www.aomedia.org/license/software. If the Alliance for Open
+## Media Patent License 1.0 was not distributed with this source code in the
+## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+##
+
+
+
+for opt in "$@"; do
+    optval="${opt#*=}"
+    case "$opt" in
+    --bare) bare=true ;;
+    *) break ;;
+    esac
+    shift
+done
+source_path=${1:-.}
+out_file=${2}
+id=${3:-VERSION_STRING}
+
+git_version_id=""
+if [ -e "${source_path}/.git" ]; then
+    # Source Path is a git working copy. Check for local modifications.
+    # Note that git submodules may have a file as .git, not a directory.
+    export GIT_DIR="${source_path}/.git"
+    git_version_id=`git describe --match=v[0-9]* 2>/dev/null`
+fi
+
+changelog_version=""
+for p in "${source_path}" "${source_path}/.."; do
+    if [ -z "$git_version_id" -a -f "${p}/CHANGELOG" ]; then
+        changelog_version=`head -n1 "${p}/CHANGELOG" | awk '{print $2}'`
+        changelog_version="${changelog_version}"
+        break
+    fi
+done
+version_str="${changelog_version}${git_version_id}"
+bare_version=${version_str#v}
+major_version=${bare_version%%.*}
+bare_version=${bare_version#*.}
+minor_version=${bare_version%%.*}
+bare_version=${bare_version#*.}
+patch_version=${bare_version%%-*}
+bare_version=${bare_version#${patch_version}}
+extra_version=${bare_version##-}
+
+#since they'll be used as integers below make sure they are or force to 0
+for v in major_version minor_version patch_version; do
+    if eval echo \$$v |grep -E -q '[^[:digit:]]'; then
+        eval $v=0
+    fi
+done
+
+if [ ${bare} ]; then
+    echo "${changelog_version}${git_version_id}" > $$.tmp
+else
+    cat<<EOF>$$.tmp
+#define VERSION_MAJOR  $major_version
+#define VERSION_MINOR  $minor_version
+#define VERSION_PATCH  $patch_version
+#define VERSION_EXTRA  "$extra_version"
+#define VERSION_PACKED ((VERSION_MAJOR<<16)|(VERSION_MINOR<<8)|(VERSION_PATCH))
+#define ${id}_NOSP "${version_str}"
+#define ${id}      " ${version_str}"
+EOF
+fi
+if [ -n "$out_file" ]; then
+diff $$.tmp ${out_file} >/dev/null 2>&1 || cat $$.tmp > ${out_file}
+else
+cat $$.tmp
+fi
+rm $$.tmp