Added gstreamer support to the magicleap port

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