How to get video thumbnails in KDE Plasma 5 (21:9)

sudo apt-get install git build-essential cmake extra-cmake-modules kio-dev pkg-config libavformat-dev libavcodec-dev libswscale-dev

git clone git://anongit.kde.org/ffmpegthumbs

cd ffmpegthumbs

git checkout origin/frameworks

mkdir -p builddir

cd builddir && cmake .. -DCMAKE_INSTALL_PREFIX=$(kf5-config --prefix) -DCMAKE_BUILD_TYPE=Release -DKDE_INSTALL_USE_QT_SYS_PATHS=ON

sudo make install ... https://www.youtube.com/watch?v=YnvwTdThDxQ