tce-load -i compiletc meson gst-plugins-bad-dev

wget https://github.com/GStreamer/gstreamer-vaapi/archive/refs/tags/1.16.2.tar.gz

cd gstreamer-vaapi-1.16.2

mkdir build
cd build

CC="gcc -flto -mtune=generic -Os -pipe" CXX="g++ -flto -mtune=generic -Os -pipe" meson --prefix=/usr/local --localstatedir=/var --libexecdir=/usr/local/lib --buildtype=plain -Dgtk_doc=disabled ../

[-fno-exceptions -fno-rtti fails]

ninja [0m 34.79s]
sudo ninja install