diff --git a/ffmpeg-android-maker.sh b/ffmpeg-android-maker.sh
index 566685a..9e18a4a 100755
--- a/ffmpeg-android-maker.sh
+++ b/ffmpeg-android-maker.sh
@@ -44,7 +44,7 @@ function prepareOutput() {
 # Otherwise the whole script is interrupted
 function checkTextRelocations() {
   TEXT_REL_STATS_FILE=${STATS_DIR}/text-relocations.txt
-  ${READELF} --dynamic ${BUILD_DIR_FFMPEG}/${ANDROID_ABI}/lib/*.so | grep 'TEXTREL\|File' >> ${TEXT_REL_STATS_FILE}
+  ${FAM_READELF} --dynamic ${BUILD_DIR_FFMPEG}/${ANDROID_ABI}/lib/*.so | grep 'TEXTREL\|File' >> ${TEXT_REL_STATS_FILE}
 
   if grep -q TEXTREL ${TEXT_REL_STATS_FILE}; then
     echo "There are text relocations in output files:"
diff --git a/scripts/export-build-variables.sh b/scripts/export-build-variables.sh
index 95d79a8..19b64cf 100755
--- a/scripts/export-build-variables.sh
+++ b/scripts/export-build-variables.sh
@@ -15,6 +15,7 @@ export TOOLCHAIN_PATH=${ANDROID_NDK_HOME}/toolchains/llvm/prebuilt/${HOST_TAG}
 export SYSROOT_PATH=${TOOLCHAIN_PATH}/sysroot
 
 TARGET_TRIPLE_MACHINE_CC=
+CPU_FAMILY=
 export TARGET_TRIPLE_OS="android"
 
 case $ANDROID_ABI in
@@ -34,6 +35,7 @@ case $ANDROID_ABI in
     #cc       i686-linux-android16-clang
     #binutils i686-linux-android  -ld
     export TARGET_TRIPLE_MACHINE_BINUTILS=i686
+    CPU_FAMILY=x86
     ;;
   x86_64)
     #cc       x86_64-linux-android21-clang
@@ -46,37 +48,42 @@ esac
 [ -z "${TARGET_TRIPLE_MACHINE_CC}" ] && TARGET_TRIPLE_MACHINE_CC=${TARGET_TRIPLE_MACHINE_BINUTILS}
 export TARGET_TRIPLE_MACHINE_CC=$TARGET_TRIPLE_MACHINE_CC
 
+[ -z "${CPU_FAMILY}" ] && CPU_FAMILY=${TARGET_TRIPLE_MACHINE_BINUTILS}
+export CPU_FAMILY=$CPU_FAMILY
+
 # Common prefix for ld, as, etc.
 export CROSS_PREFIX=${TARGET_TRIPLE_MACHINE_BINUTILS}-linux-${TARGET_TRIPLE_OS}-
 export CROSS_PREFIX_WITH_PATH=${TOOLCHAIN_PATH}/bin/${CROSS_PREFIX}
 
 # Exporting Binutils paths, if passing just CROSS_PREFIX_WITH_PATH is not enough
-export ADDR2LINE=${CROSS_PREFIX_WITH_PATH}addr2line
-export        AR=${CROSS_PREFIX_WITH_PATH}ar
-export        AS=${CROSS_PREFIX_WITH_PATH}as
-export       DWP=${CROSS_PREFIX_WITH_PATH}dwp
-export   ELFEDIT=${CROSS_PREFIX_WITH_PATH}elfedit
-export     GPROF=${CROSS_PREFIX_WITH_PATH}gprof
-export        LD=${CROSS_PREFIX_WITH_PATH}ld
-export        NM=${CROSS_PREFIX_WITH_PATH}nm
-export   OBJCOPY=${CROSS_PREFIX_WITH_PATH}objcopy
-export   OBJDUMP=${CROSS_PREFIX_WITH_PATH}objdump
-export    RANLIB=${CROSS_PREFIX_WITH_PATH}ranlib
-export   READELF=${CROSS_PREFIX_WITH_PATH}readelf
-export      SIZE=${CROSS_PREFIX_WITH_PATH}size
-export   STRINGS=${CROSS_PREFIX_WITH_PATH}strings
-export     STRIP=${CROSS_PREFIX_WITH_PATH}strip
+export FAM_ADDR2LINE=${CROSS_PREFIX_WITH_PATH}addr2line
+export        FAM_AR=${CROSS_PREFIX_WITH_PATH}ar
+export        FAM_AS=${CROSS_PREFIX_WITH_PATH}as
+export       FAM_DWP=${CROSS_PREFIX_WITH_PATH}dwp
+export   FAM_ELFEDIT=${CROSS_PREFIX_WITH_PATH}elfedit
+export     FAM_GPROF=${CROSS_PREFIX_WITH_PATH}gprof
+export        FAM_LD=${CROSS_PREFIX_WITH_PATH}ld
+export        FAM_NM=${CROSS_PREFIX_WITH_PATH}nm
+export   FAM_OBJCOPY=${CROSS_PREFIX_WITH_PATH}objcopy
+export   FAM_OBJDUMP=${CROSS_PREFIX_WITH_PATH}objdump
+export    FAM_RANLIB=${CROSS_PREFIX_WITH_PATH}ranlib
+export   FAM_READELF=${CROSS_PREFIX_WITH_PATH}readelf
+export      FAM_SIZE=${CROSS_PREFIX_WITH_PATH}size
+export   FAM_STRINGS=${CROSS_PREFIX_WITH_PATH}strings
+export     FAM_STRIP=${CROSS_PREFIX_WITH_PATH}strip
 
 export TARGET=${TARGET_TRIPLE_MACHINE_CC}-linux-${TARGET_TRIPLE_OS}${ANDROID_PLATFORM}
 # The name for compiler is slightly different, so it is defined separatly.
-export CC=${TOOLCHAIN_PATH}/bin/${TARGET}-clang
-export CXX=${CC}++
+export FAM_CC=${TOOLCHAIN_PATH}/bin/${TARGET}-clang
+export FAM_CXX=${FAM_CC}++
 # TODO consider abondaning this strategy of defining the name of the clang wrapper
 # in favour of just passing -mstackrealign and -fno-addrsig depending on
 # ANDROID_ABI and NDK's version
 
 # Special variable for the yasm assembler
-export YASM=${TOOLCHAIN_PATH}/bin/yasm
+export FAM_YASM=${TOOLCHAIN_PATH}/bin/yasm
 
 # A variable to which certain dependencies can add -l arguments during build.sh
 export FFMPEG_EXTRA_LD_FLAGS=
+
+export INSTALL_DIR=${BUILD_DIR_EXTERNAL}/${ANDROID_ABI}
diff --git a/scripts/export-host-variables.sh b/scripts/export-host-variables.sh
index 04aaef8..5d4f14a 100755
--- a/scripts/export-host-variables.sh
+++ b/scripts/export-host-variables.sh
@@ -25,5 +25,7 @@ export HOST_NPROC=$HOST_NPROC
 
 # Using CMake from the Android SDK
 export CMAKE_EXECUTABLE=${ANDROID_SDK_HOME}/cmake/3.10.2.4988404/bin/cmake
+# Using Ninja from the Android SDK
+export NINJA_EXECUTABLE=${ANDROID_SDK_HOME}/cmake/3.10.2.4988404/bin/ninja
 # Using host Make, because Android NDK's Make (before r21) doesn't work properly on MSYS2 in Windows
 export MAKE_EXECUTABLE=make
diff --git a/scripts/ffmpeg/build.sh b/scripts/ffmpeg/build.sh
index 579c270..56624eb 100755
--- a/scripts/ffmpeg/build.sh
+++ b/scripts/ffmpeg/build.sh
@@ -7,7 +7,7 @@ case $ANDROID_ABI in
     EXTRA_BUILD_CONFIGURATION_FLAGS=--disable-asm
     ;;
   x86_64)
-    EXTRA_BUILD_CONFIGURATION_FLAGS=--x86asmexe=${YASM}
+    EXTRA_BUILD_CONFIGURATION_FLAGS=--x86asmexe=${FAM_YASM}
     ;;
 esac
 
@@ -32,7 +32,7 @@ DEP_LD_FLAGS="-L${BUILD_DIR_EXTERNAL}/${ANDROID_ABI}/lib $FFMPEG_EXTRA_LD_FLAGS"
   --arch=${TARGET_TRIPLE_MACHINE_BINUTILS} \
   --sysroot=${SYSROOT_PATH} \
   --cross-prefix=${CROSS_PREFIX_WITH_PATH} \
-  --cc=${CC} \
+  --cc=${FAM_CC} \
   --extra-cflags="-O3 -fPIC $DEP_CFLAGS" \
   --extra-ldflags="$DEP_LD_FLAGS" \
   --enable-shared \
diff --git a/scripts/libaom/build.sh b/scripts/libaom/build.sh
index 7cf5618..609c958 100755
--- a/scripts/libaom/build.sh
+++ b/scripts/libaom/build.sh
@@ -8,7 +8,7 @@ ${CMAKE_EXECUTABLE} .. \
  -DANDROID_PLATFORM=${ANDROID_PLATFORM} \
  -DANDROID_ABI=${ANDROID_ABI} \
  -DCMAKE_TOOLCHAIN_FILE=${SCRIPTS_DIR}/libaom/android.cmake \
- -DCMAKE_INSTALL_PREFIX=${BUILD_DIR_EXTERNAL}/${ANDROID_ABI} \
+ -DCMAKE_INSTALL_PREFIX=${INSTALL_DIR} \
  -DCONFIG_PIC=1 \
  -DCONFIG_AV1_ENCODER=0 \
  -DCONFIG_RUNTIME_CPU_DETECT=0 \
diff --git a/scripts/libaom/download.sh b/scripts/libaom/download.sh
index 2192e0e..40e3872 100755
--- a/scripts/libaom/download.sh
+++ b/scripts/libaom/download.sh
@@ -6,7 +6,7 @@
 
 echo "Using aom master branch"
 AOM_SOURCES=aom
-if [[ ! -d "$LAME_SOURCES" ]]; then
+if [[ ! -d "$AOM_SOURCES" ]]; then
   git clone https://aomedia.googlesource.com/aom
 fi
 
diff --git a/scripts/libdav1d/build.sh b/scripts/libdav1d/build.sh
new file mode 100755
index 0000000..2cacb1b
--- /dev/null
+++ b/scripts/libdav1d/build.sh
@@ -0,0 +1,44 @@
+CROSS_FILE_NAME=crossfile-${ANDROID_ABI}.meson
+
+rm ${CROSS_FILE_NAME}
+
+cat > "${CROSS_FILE_NAME}" << EOF
+[binaries]
+c = '${FAM_CC}'
+cpp = '${FAM_CXX}'
+ar = '${FAM_AR}'
+strip = '${FAM_STRIP}'
+objcopy = '${FAM_OBJCOPY}'
+pkgconfig = '$(which pkg-config)'
+
+[properties]
+needs_exe_wrapper = true
+sys_root = '${SYSROOT_PATH}'
+
+[host_machine]
+system = 'linux'
+cpu_family = '${CPU_FAMILY}'
+cpu = '${TARGET_TRIPLE_MACHINE_BINUTILS}'
+endian = 'little'
+
+[paths]
+prefix = '${INSTALL_DIR}'
+EOF
+
+BUILD_DIRECTORY=build/${ANDROID_ABI}
+
+rm -rf ${BUILD_DIRECTORY}
+
+meson . ${BUILD_DIRECTORY} \
+  --cross-file ${CROSS_FILE_NAME} \
+  --default-library=static \
+  -Denable_asm=true \
+  -Denable_tools=false \
+  -Denable_tests=false \
+  -Denable_examples=false \
+  -Dtestdata_tests=false
+
+cd ${BUILD_DIRECTORY}
+
+${NINJA_EXECUTABLE}
+${NINJA_EXECUTABLE} install
diff --git a/scripts/libdav1d/download.sh b/scripts/libdav1d/download.sh
new file mode 100755
index 0000000..94f2354
--- /dev/null
+++ b/scripts/libdav1d/download.sh
@@ -0,0 +1,17 @@
+# Script to download Dav1d's source code
+
+# Exports SOURCES_DIR_libdav1d - path where actual sources are stored
+
+DAV1D_VERSION=0.5.1
+echo "Using libdav1d $DAV1D_VERSION"
+DAV1D_SOURCES=dav1d-${DAV1D_VERSION}
+
+if [[ ! -d "$DAV1D_SOURCES" ]]; then
+  TARGET_FILE_NAME=dav1d-${DAV1D_VERSION}.tar.gz
+
+  curl https://code.videolan.org/videolan/dav1d/-/archive/${DAV1D_VERSION}/dav1d-${DAV1D_VERSION}.tar.gz --output ${TARGET_FILE_NAME}
+  tar xf ${TARGET_FILE_NAME} -C .
+  rm ${TARGET_FILE_NAME}
+fi
+
+export SOURCES_DIR_libdav1d=$(pwd)/${DAV1D_SOURCES}
diff --git a/scripts/libmp3lame/build.sh b/scripts/libmp3lame/build.sh
index e16e007..c8f64f8 100755
--- a/scripts/libmp3lame/build.sh
+++ b/scripts/libmp3lame/build.sh
@@ -1,5 +1,5 @@
 ./configure \
-    --prefix=${BUILD_DIR_EXTERNAL}/${ANDROID_ABI} \
+    --prefix=${INSTALL_DIR} \
     --target=${TARGET} \
     --host=${TARGET} \
     --with-sysroot=${SYSROOT_PATH} \
@@ -10,10 +10,10 @@
     --disable-decoder \
     --disable-gtktest \
     --disable-frontend \
-    CC=${CC} \
-    LD=${LD} \
-    AR=${AR} \
-    RANLIB=${RANLIB}
+    CC=${FAM_CC} \
+    LD=${FAM_LD} \
+    AR=${FAM_AR} \
+    RANLIB=${FAM_RANLIB}
 
 export FFMPEG_EXTRA_LD_FLAGS="${FFMPEG_EXTRA_LD_FLAGS} -lmp3lame"
 
diff --git a/scripts/parse-arguments.sh b/scripts/parse-arguments.sh
index de95215..a611b0a 100755
--- a/scripts/parse-arguments.sh
+++ b/scripts/parse-arguments.sh
@@ -39,10 +39,10 @@ do
       EXTERNAL_LIBRARIES+=( "libaom" )
       shift
     ;;
-    # --enable-libdav1d)
-    #   EXTERNAL_LIBRARIES+=( "libdav1d" )
-    #   shift
-    # ;;
+    --enable-libdav1d)
+      EXTERNAL_LIBRARIES+=( "libdav1d" )
+      shift
+    ;;
     --enable-libmp3lame)
       EXTERNAL_LIBRARIES+=( "libmp3lame" )
       shift