Specifying v1.0.0-errata1 as the version of libaom

.travis.yml

@@ -2,6 +2,8 @@ language: java
 jdk: openjdk8
 dist: xenial
 install:
+  - echo "pkg-config:"
+  - which pkg-config
   # Installing Android SDK
   - curl https://dl.google.com/android/repository/sdk-tools-linux-4333796.zip --output $HOME/android-sdk.zip
   - unzip -qq $HOME/android-sdk.zip -d $HOME/android-sdk

scripts/libaom/build.sh

@@ -1,4 +1,4 @@
-# libaom doesn't support building being in its root directory
+# libaom doesn't support building while being in its root directory
 CMAKE_BUILD_DIR=aom_build_${ANDROID_ABI}
 rm -rf ${CMAKE_BUILD_DIR}
 mkdir ${CMAKE_BUILD_DIR}

scripts/libaom/download.sh

@@ -2,16 +2,17 @@
 
 # Exports SOURCES_DIR_libaom - path where actual sources are stored
 
-# TODO Consider using a specific git tag (like v1.0.0-errata1) for reproducible builds
+AOM_VERSION=v1.0.0-errata1
+echo "Using libaom $AOM_VERSION"
+AOM_SOURCES=libaom-${AOM_VERSION}
 
-echo "Using aom master branch"
-AOM_SOURCES=aom
 if [[ ! -d "$AOM_SOURCES" ]]; then
-  git clone https://aomedia.googlesource.com/aom
-fi
+  TARGET_FILE_NAME=${AOM_VERSION}.tar.gz
 
-cd aom
-git pull origin master
-cd ..
+  curl https://aomedia.googlesource.com/aom/+archive/${TARGET_FILE_NAME} --output ${TARGET_FILE_NAME}
+  mkdir $AOM_SOURCES
+  tar xf ${TARGET_FILE_NAME} -C $AOM_SOURCES
+  rm ${TARGET_FILE_NAME}
+fi
 
 export SOURCES_DIR_libaom=$(pwd)/${AOM_SOURCES}