diff --git a/docker/kurento-media-server/Dockerfile b/docker/kurento-media-server/Dockerfile
index 0d6f2ce0..3bc34dee 100644
--- a/docker/kurento-media-server/Dockerfile
+++ b/docker/kurento-media-server/Dockerfile
@@ -1,316 +1,317 @@
 FROM fedora:31
 
 MAINTAINER Jeroen van Meeuwen <vanmeeuwen@kolabsys.com>
 
 ENV CFLAGS="-O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fstack-protector-strong -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -fasynchronous-unwind-tables -fstack-clash-protection -flto"
 ENV CXXFLAGS="${CFLAGS}"
 ENV LDFLAGS="-Wl,-z,relro -Wl,--as-needed  -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -flto -fuse-linker-plugin"
 ENV CC="gcc"
 ENV CXX="g++"
 ENV AR="/bin/gcc-ar"
 ENV RANLIB="/bin/gcc-ranlib"
 ENV NM="/bin/gcc-nm"
 ENV CMAKE_CXX_ARCHIVE_CREATE="<CMAKE_AR> qcs <TARGET> <LINK_FLAGS> <OBJECTS>"
 
 ARG CMAKEOPTS="-DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr/ -DCMAKE_INSTALL_SYSCONFDIR=/etc/ -DCMAKE_MODULES_INSTALL_DIR=/usr/share/cmake/Modules/ -DBUILD_SHARED_LIBS=ON -DCMAKE_AR=${AR} -DCMAKE_CXX_ARCHIVE_FINISH=true -DCMAKE_MODULES_INSTALL_DIR=/usr/share/cmake/Modules/ -DGENERATE_TESTS=FALSE -DDISABLE_TESTS=TRUE"
 ARG GST_VERSION="1.18.1"
 ARG KURENTO_MEDIA_SERVER_VERSION="6.15.0"
 ARG KURENTO_CMAKE_VERSION="6.15.0"
 ARG KURENTO_CORE_VERSION="6.15.0"
 ARG KURENTO_ELEMENTS_VERSION="6.15.0"
 ARG KURENTO_FILTERS_VERSION="6.15.0"
 ARG KURENTO_MODULE_CREATOR_VERSION="6.15.0"
 ARG KURENTO_JSONCPP_VERSION="1.6.4"
 ARG KURENTO_JSONRPC_VERSION="6.15.0"
 
 RUN rpm -Uvh https://mirrors.rpmfusion.org/free/fedora/rpmfusion-free-release-31.noarch.rpm && \
     rpm -Uvh https://mirrors.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-31.noarch.rpm && \
     dnf -y install \
         autoconf \
         automake \
         bison \
         boost-devel \
         cmake \
         coreutils \
         dnf-plugins-core \
         ffmpeg \
         flac-devel \
         flex \
         gcc-c++ \
         gettext-devel \
         git \
         glibmm24-devel \
         gsl-devel \
         gtk-doc \
         libevent-devel \
         libmicrodns-devel \
         libnice-devel \
         libpng-devel \
         libsigc++20-devel \
         libsoup-devel \
         libsrtp-devel \
         libtool \
         libunwind-devel \
         libuuid-devel \
         libvisual-devel \
         libvpx-devel \
         make \
         maven \
         meson \
         net-tools \
         opencv-devel \
-        openni-devel \
+        # not available on ppc64le? \
+        #openni-devel \
         openssl-devel \
         opus-devel \
         redhat-rpm-config \
         spandsp-devel \
         vim-enhanced \
         webrtc-audio-processing-devel \
         websocketpp-devel \
         x264-devel \
         x265-devel && \
     # meson in module older than meson in updates \
     dnf module -y disable meson && \
     dnf -y update meson && \
     # opencv may not even be needed \
     #dnf -y builddep opencv && \
     mkdir -p /src/ && \
     #git clone https://github.com/Kurento/gstreamer.git /src/gstreamer.git && \
     #    cd /src/gstreamer.git/ && \
     #    git submodule init && \
     #    git submodule update && \
     #    autopoint --force && \
     #    autoreconf -vi && \
     #    ./configure --prefix=/usr --sysconfdir=/etc --libdir=/usr/lib64 --disable-failing-tests && \
     #    make -j $(nproc) VERBOSE=1 && \
     #    make install VERBOSE=1 && \
     git clone -b ${GST_VERSION} https://gitlab.freedesktop.org/gstreamer/gstreamer /src/gstreamer.git && \
         cd /src/gstreamer.git/ && \
         if [ -f 'meson.build' ]; then \
             meson build --prefix=/usr && \
             ninja -C build install ; \
         else \
             git submodule init && \
             git submodule update && \
             autopoint --force && \
             autoreconf -vi && \
             ./configure --prefix=/usr --sysconfdir=/etc --libdir=/usr/lib64 --disable-failing-tests && \
             make -j $(nproc) VERBOSE=1 && \
             make install VERBOSE=1 ; \
         fi && \
 #RUN #git clone https://github.com/opencv/opencv.git /src/opencv.git/ && \
     #    cd /src/opencv.git/ && \
     #    mkdir build && \
     #    cd build && \
     #    cmake \
     #        ${CMAKE_OPTS} \
     #        -DCV_TRACE=OFF \
     #        -DWITH_IPP=OFF \
     #        -DWITH_ITT=OFF \
     #        -DWITH_QT=OFF \
     #        -DWITH_OPENGL=ON \
     #        -DOpenGL_GL_PREFERENCE=GLVND \
     #        -DWITH_GDAL=ON \
     #        -DWITH_OPENEXR=ON \
     #        -DWITH_UNICAP=ON \
     #        -DCMAKE_SKIP_RPATH=ON \
     #        -DWITH_CAROTENE=OFF \
     #        -DENABLE_PRECOMPILED_HEADERS=OFF \
     #        -DCMAKE_BUILD_TYPE=ReleaseWithDebInfo \
     #        -DBUILD_opencv_java=ON \
     #        -DOPENCV_JAR_INSTALL_PATH=/usr/lib/java \
     #        -DWITH_TBB=ON \
     #        -DWITH_GSTREAMER=ON \
     #        -DWITH_FFMPEG=ON \
     #        -DWITH_CUDA=OFF \
     #        -DWITH_OPENNI=ON \
     #        -DWITH_XINE=ON \
     #        -DBUILD_DOCS=ON \
     #        -DBUILD_EXAMPLES=ON \
     #        -DBUILD_opencv_python2=OFF \
     #        -DINSTALL_C_EXAMPLES=OFF \
     #        -DINSTALL_PYTHON_EXAMPLES=OFF \
     #        -DENABLE_PYLINT=OFF \
     #        -DBUILD_PROTOBUF=OFF \
     #        -DPROTOBUF_UPDATE_FILES=ON \
     #        -DOPENCL_INCLUDE_DIR=/usr/include/CL \
     #        -DOPENCV_SKIP_PYTHON_LOADER=ON \
     #        -DOPENCV_EXTRA_MODULES_PATH=opencv_contrib-4.5.0/modules \
     #        -DWITH_LIBV4L=ON \
     #        -DWITH_OPENMP=ON \
     #        -DOPENCV_CONFIG_INSTALL_PATH=/usr/lib64/cmake/OpenCV \
     #        -DOPENCV_GENERATE_PKGCONFIG=ON \
     #        -DOPENCV_TEST_DATA_PATH=opencv_extra-4.5.0/testdata \
     #        -DWITH_GDCM=ON \
     #        -DWITH_MFX=ON \
     #        -DWITH_CLP=ON \
     #        -DWITH_VA=ON \
     #        -DWITH_VTK=OFF \
     #        -DWITH_VULKAN=ON -DVULKAN_INCLUDE_DIRS=/usr/include/vulkan \
     #        .. && \
     #    make -j $(nproc) VERBOSE=1 && \
     #    make install VERBOSE=1 && \
     git clone -b ${GST_VERSION} https://gitlab.freedesktop.org/gstreamer/gst-plugins-base /src/gst-plugins-base.git && \
         cd /src/gst-plugins-base.git/ && \
         if [ -f 'meson.build' ]; then \
             meson build --prefix=/usr && \
             ninja -C build install ; \
         else \
             git submodule init && \
             git submodule update && \
             autopoint --force && \
             autoreconf -vi && \
             ./configure --prefix=/usr --sysconfdir=/etc --libdir=/usr/lib64 --disable-failing-tests && \
             make -j $(nproc) VERBOSE=1 && \
             make install VERBOSE=1 ; \
         fi && \
     git clone -b ${GST_VERSION} https://gitlab.freedesktop.org/gstreamer/gst-plugins-good /src/gst-plugins-good.git/ && \
         cd /src/gst-plugins-good.git/ && \
         if [ -f 'meson.build' ]; then \
             meson build --prefix=/usr && \
             ninja -C build install ; \
         else \
             git submodule init && \
             git submodule update && \
             autopoint --force && \
             autoreconf -vi && \
             ./configure --prefix=/usr --sysconfdir=/etc --libdir=/usr/lib64 --disable-failing-tests && \
             make -j $(nproc) VERBOSE=1 && \
             make install VERBOSE=1 ; \
         fi && \
     git clone -b ${GST_VERSION} https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad /src/gst-plugins-bad.git && \
         cd /src/gst-plugins-bad.git/ && \
         if [ -f 'meson.build' ]; then \
             meson build --prefix=/usr && \
             ninja -C build install ; \
         else \
             git submodule init && \
             git submodule update && \
             autopoint --force && \
             autoreconf -vi && \
             ./configure --prefix=/usr --sysconfdir=/etc --libdir=/usr/lib64 --disable-failing-tests && \
             make -j $(nproc) VERBOSE=1 && \
             make install VERBOSE=1 ; \
         fi && \
     git clone -b ${GST_VERSION} https://gitlab.freedesktop.org/gstreamer/gst-plugins-ugly /src/gst-plugins-ugly.git && \
         cd /src/gst-plugins-ugly.git/ && \
         if [ -f 'meson.build' ]; then \
             meson build --prefix=/usr && \
             ninja -C build install ; \
         else \
             git submodule init && \
             git submodule update && \
             autopoint --force && \
             autoreconf -vi && \
             ./configure --prefix=/usr --sysconfdir=/etc --libdir=/usr/lib64 --disable-failing-tests && \
             make -j $(nproc) VERBOSE=1 && \
             make install VERBOSE=1 ; \
         fi && \
     git clone -b ${KURENTO_CMAKE_VERSION} https://github.com/Kurento/kms-cmake-utils.git /src/kms-cmake-utils.git && \
         cd /src/kms-cmake-utils.git/ && \
         mkdir build && \
         cd build && \
         cmake \
             ${CMAKEOPTS} \
             .. && \
         make -j $(nproc) VERBOSE=1 && \
         make install -s && \
     git clone -b ${KURENTO_MODULE_CREATOR_VERSION} https://github.com/Kurento/kurento-module-creator.git /src/kurento-module-creator.git && \
         cd /src/kurento-module-creator.git/ && \
         mvn clean install -DskipTests && \
         cp target/kurento-module-creator-jar-with-dependencies.jar /usr/bin/. && \
         cp scripts/kurento-module-creator /usr/bin/. && \
         cp target/classes/*.cmake /usr/share/cmake/Modules/. && \
     git clone -b ${KURENTO_JSONCPP_VERSION} https://github.com/Kurento/jsoncpp.git /src/jsoncpp.git && \
         cd /src/jsoncpp.git/ && \
         mkdir build && \
         cd build && \
         cmake \
             ${CMAKEOPTS} \
             -DJSONCPP_WITH_CMAKE_PACKAGE=ON \
             -DLIBRARY_INSTALL_DIR=/usr/lib64/ \
             -DPACKAGE_INSTALL_DIR=/usr/share/cmake/ \
             .. && \
         make -j $(nproc) VERBOSE=1 && \
         make install -s && \
         mv -v /usr/lib/pkgconfig/*.pc /usr/share/pkgconfig/. && \
         mv -v /usr/share/cmake/jsoncpp/*.cmake /usr/share/cmake/Modules/. && \
         rm -rvf /usr/share/cmake/jsoncpp/ && \
         mv -v /usr/include/json/features.h /usr/include/json/json-features.h && \
         sed -i -e 's/features\.h/json-features\.h/g' /usr/include/json/*.h && \
         cp -av /usr/include/json /usr/include/kmsjsoncpp && \
     git clone -b ${KURENTO_JSONRPC_VERSION} https://github.com/Kurento/kms-jsonrpc.git /src/kms-jsonrpc.git && \
         cd /src/kms-jsonrpc.git/ && \
         mkdir build && \
         cd build && \
         cmake \
             ${CMAKEOPTS} \
             .. && \
         make -j $(nproc) VERBOSE=1 && \
         make install -s && \
     git clone -b ${KURENTO_CORE_VERSION} https://github.com/Kurento/kms-core.git /src/kms-core.git && \
         cd /src/kms-core.git/ && \
         sed -r -i \
             -e 's/gstreamer-(.*)1.5/gstreamer-\11.0/g' \
             $(find -type f -name CMakeLists.txt) && \
         mkdir build && \
         cd build && \
         cmake \
             ${CMAKEOPTS} \
             -DCMAKE_INSTALL_GST_PLUGINS_DIR=/usr/lib64/gstreamer-1.0/ \
             .. && \
         make -j $(nproc) VERBOSE=1 && \
         make install -s && \
     git clone -b ${KURENTO_ELEMENTS_VERSION} https://github.com/Kurento/kms-elements.git /src/kms-elements.git && \
         cd /src/kms-elements.git/ && \
         sed -r -i \
             -e 's/gstreamer-(.*)1.5/gstreamer-\11.0/g' \
             $(find -type f -name CMakeLists.txt) && \
         mkdir build && \
         cd build && \
         cmake \
             ${CMAKEOPTS} \
             .. && \
         sed -i \
             -e 's/-lkmsgstcommons/-lkmsgstcommons -lkmscoreinterface/g' \
             $(find . -type f -name link.txt) && \
         make -j $(nproc) VERBOSE=1 && \
         make install -s && \
         cp -av src/server/implementation/HttpServer/libkmshttpep.so /usr/lib64/ && \
     git clone -b ${KURENTO_FILTERS_VERSION} https://github.com/Kurento/kms-filters.git /src/kms-filters.git && \
         cd /src/kms-filters.git/ && \
         sed -r -i \
             -e 's/gstreamer-(.*)1.5/gstreamer-\11.0/g' \
             $(find -type f -name CMakeLists.txt) && \
         mkdir build && \
         cd build && \
         cmake \
             ${CMAKEOPTS} \
             .. && \
         make -j $(nproc) VERBOSE=1 && \
         make install -s && \
     git clone -b ${KURENTO_MEDIA_SERVER_VERSION} https://github.com/Kurento/kurento-media-server.git /src/kurento-media-server.git && \
         cd /src/kurento-media-server.git/ && \
         sed -r -i \
             -e 's/gstreamer-(.*)1.5/gstreamer-\11.0/g' \
             $(find -type f -name CMakeLists.txt) && \
         sed -i \
             -e '603,618d' \
             server/death_handler.cpp && \
         mkdir build && \
         cd build && \
         cmake \
             ${CMAKEOPTS} \
             .. && \
         sed -i \
             -e 's/-lkmsgstcommons/-lkmsgstcommons -lkmscoreinterface/g' \
             $(find . -type f -name link.txt) && \
         make -j $(nproc) VERBOSE=1 && \
         make install VERBOSE=1 -s && \
         cp -av $(find . -type f -name 'libtransport.so*') /usr/lib64/ && \
         cp -av $(find . -type f -name 'libwebsocketTransport.so*') /usr/lib64/ && \
         strip -s /usr/lib64/libkms*.so* /usr/lib64/kurento/modules/*.so*
 
 COPY rootfs/ /
 
 CMD ["/bin/kurento-media-server", "--gst-plugin-path", "/usr/lib64/gstreamer-1.0/"]