4 files changed, 166 insertions, 0 deletions
diff --git a/support/magicleap/gstreamer/.gitignore b/support/magicleap/gstreamer/.gitignore
new file mode 100644
index 00000000000..7bfad2c963c
--- /dev/null
+++ b/support/magicleap/gstreamer/.gitignore
@@ -0,0 +1,7 @@
+*.tar.gz
+*.tgz
+_build
+_install
+gst-build
+libiconv-1.16
+mlsdk.txt
diff --git a/support/magicleap/gstreamer/README.md b/support/magicleap/gstreamer/README.md
new file mode 100644
index 00000000000..2ec4e1ac5f5
--- /dev/null
+++ b/support/magicleap/gstreamer/README.md
@@ -0,0 +1,22 @@
+# Building the binary .tgz for magicleap gstreamer
+
+`mach` downloads prebuilt gstreamer libaries, which are built using this script.
+
+# Requirements
+- Magic Leap SDK >= 0.22.0 for MacOSX
+  * Download from https://creator.magicleap.com/downloads/lumin-sdk/overview
+  * Install both `Lumin SDK` and `Lumin Runtime SDK` packages
+- An application certificate
+  * Create one on https://creator.magicleap.com in `publish` section
+
+# Setup MacOSX
+- Install python3 and HomeBrew
+- pip3 install git+https://github.com/mesonbuild/meson.git
+  * Requires Meson >=0.52.0, currently only in git master.
+- brew install coreutils glib bison
+- export PATH=/usr/local/opt/gettext/bin:/usr/local/opt/bison/bin:$PATH
+
+# Build Instructions
+- export MAGICLEAP_SDK=/path/to/mlsdk
+- export MLCERT=/path/to/application.cert
+- ./gstreamer.sh
diff --git a/support/magicleap/gstreamer/gstreamer.sh b/support/magicleap/gstreamer/gstreamer.sh
new file mode 100755
index 00000000000..b700bb11900
--- /dev/null
+++ b/support/magicleap/gstreamer/gstreamer.sh
@@ -0,0 +1,100 @@
+#!/usr/bin/env bash
+
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at https://mozilla.org/MPL/2.0/.
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+SOURCE_DIR=gst-build
+BUILD_DIR=_build
+INSTALL_DIR=_install
+INSTALL_REAL_DIR=$(realpath ${INSTALL_DIR})
+ARCHIVE=gstreamer-magicleap-1.16.0-$(date +"%Y%m%d-%H%M%S").tgz
+
+function build_and_install()
+{
+  ninja -C ${BUILD_DIR}
+  DESTDIR=${INSTALL_REAL_DIR} meson install -C ${BUILD_DIR} --only-changed
+  echo Creating archive ${ARCHIVE}.
+  tar czf ${ARCHIVE} -C ${INSTALL_DIR} system
+}
+
+if [[ "${1:-}" == "--build-only" ]]; then
+  build_and_install
+  exit
+fi
+
+rm -rf ${BUILD_DIR}
+rm -rf ${INSTALL_DIR}
+
+# FIXME: Download, build and install GNU libiconv because MLSDK has an old
+# version of bionic that does not include iconv.
+ICONV_NAME=libiconv-1.16
+if [[ ! -d ${ICONV_NAME} ]]; then
+  curl -O -L https://ftp.gnu.org/pub/gnu/libiconv/${ICONV_NAME}.tar.gz
+  tar xzf ${ICONV_NAME}.tar.gz
+fi
+mkdir -p ${BUILD_DIR}/${ICONV_NAME}
+HOST=aarch64-linux-android
+SYSROOT=${MAGICLEAP_SDK}/lumin/usr
+
+cd ${BUILD_DIR}/${ICONV_NAME}
+env CFLAGS=--sysroot=${SYSROOT} \
+    CPPFLAGS=--sysroot=${SYSROOT} \
+    CC=${MAGICLEAP_SDK}/tools/toolchains/bin/${HOST}-clang \
+    AR=${MAGICLEAP_SDK}/tools/toolchains/bin/${HOST}-ar \
+    RANLIB=${MAGICLEAP_SDK}/tools/toolchains/bin/${HOST}-ranlib \
+    ../../${ICONV_NAME}/configure --host=${HOST} \
+                --with-sysroot=${SYSROOT} \
+                --prefix /system \
+                --libdir /system/lib64
+cd ../..
+make -C ${BUILD_DIR}/${ICONV_NAME}
+DESTDIR=${INSTALL_REAL_DIR} make -C ${BUILD_DIR}/${ICONV_NAME} install
+
+# Clone custom repo/branch of gst-build
+if [[ ! -d ${SOURCE_DIR} ]]; then
+  git clone https://gitlab.freedesktop.org/xclaesse/gst-build.git --branch magicleap ${SOURCE_DIR}
+fi
+
+# Generate cross file by replacing the MLSDK location
+cat mlsdk.txt.in | sed s#@MAGICLEAP_SDK@#${MAGICLEAP_SDK}# \
+                 | sed s#@INSTALL_DIR@#${INSTALL_REAL_DIR}# > mlsdk.txt
+
+meson --cross-file mlsdk.txt \
+      --prefix /system \
+      --libdir lib64 \
+      --libexecdir bin \
+      -Db_pie=true \
+      -Dcpp_std=c++11 \
+      -Dpython=disabled \
+      -Dlibav=disabled \
+      -Ddevtools=disabled \
+      -Dges=disabled \
+      -Drtsp_server=disabled \
+      -Domx=disabled \
+      -Dvaapi=disabled \
+      -Dsharp=disabled \
+      -Dexamples=disabled \
+      -Dgtk_doc=disabled \
+      -Dintrospection=disabled \
+      -Dnls=disabled \
+      -Dbad=enabled \
+      -Dgst-plugins-base:gl=enabled \
+      -Dgst-plugins-base:gl_platform=egl \
+      -Dgst-plugins-base:gl_winsys=android \
+      -Dgst-plugins-good:soup=enabled \
+      -Dgst-plugins-bad:gl=enabled \
+      -Dgst-plugins-bad:magicleap=enabled \
+      -Dgst-plugins-bad:dash=enabled \
+      -Dglib:iconv=gnu \
+      -Dlibsoup:gssapi=false \
+      -Dlibsoup:tls_check=false \
+      -Dlibsoup:vapi=false \
+      ${BUILD_DIR} \
+      ${SOURCE_DIR}
+
+build_and_install
diff --git a/support/magicleap/gstreamer/mlsdk.txt.in b/support/magicleap/gstreamer/mlsdk.txt.in
new file mode 100644
index 00000000000..057bc9b30b0
--- /dev/null
+++ b/support/magicleap/gstreamer/mlsdk.txt.in
@@ -0,0 +1,37 @@
+[host_machine]
+system = 'android'
+cpu_family = 'aarch64'
+cpu = 'armv8-a'
+endian = 'little'
+
+[properties]
+c_args = [
+  '--sysroot=@MAGICLEAP_SDK@/lumin/usr',
+  '-I@MAGICLEAP_SDK@/include',
+  '-I@MAGICLEAP_SDK@/staging/include',
+  '-I@INSTALL_DIR@/system/include',
+  ]
+cpp_args = [
+  '--sysroot=@MAGICLEAP_SDK@/lumin/usr',
+  '-I@MAGICLEAP_SDK@/include',
+  '-I@MAGICLEAP_SDK@/staging/include',
+  '-I@INSTALL_DIR@/system/include',
+  ]
+c_link_args = [
+  '--sysroot=@MAGICLEAP_SDK@/lumin/usr',
+  '-L@MAGICLEAP_SDK@/lib/lumin',
+  '-L@INSTALL_DIR@/system/lib64',
+  '-fuse-ld=gold'
+  ]
+cpp_link_args = [
+  '--sysroot=@MAGICLEAP_SDK@/lumin/usr',
+  '-L@MAGICLEAP_SDK@/lib/lumin',
+  '-L@INSTALL_DIR@/system/lib64',
+  '-fuse-ld=gold'
+  ]
+
+[binaries]
+c = ['ccache', '@MAGICLEAP_SDK@/tools/toolchains/bin/aarch64-linux-android-clang']
+cpp = ['ccache', '@MAGICLEAP_SDK@/tools/toolchains/bin/aarch64-linux-android-clang++']
+ar = ['@MAGICLEAP_SDK@/tools/toolchains/bin/aarch64-linux-android-ar']
+strip = ['@MAGICLEAP_SDK@/tools/toolchains/bin/aarch64-linux-android-strip']