• GStreamer-Cairo Uses the GStreamer for decoding the stream and Cairo for rendering (done in software). Most compatible out of all the player backends but can sometimes stutter/drop frames/etc when the CPU is under load or trying to render a high resolution stream.
• GStreamer-OpenGL Again uses GStreamer, but instead uses OpenGL for rendering (done in hardware). A much better choice if your hardware is compatible. You should experience virtually no lag and the stream should be rendered smoothly.
• GStreamer-Clutter Similar to GStreamer-OpenGL but uses Clutter (done in hardware) to do the rendering, which internally also uses OpenGL. You can try this if you are having problems with the GStreamer-OpenGL but otherwise they should offer similar performance.
• MPV-OpenGL Dumps the GStreamer dependency, which can be a bit clunky on non-GNOME systems. Still uses OpenGL to do the rendering (done in hardware) but opts for MPV when decoding the stream.

meson build \
    -Dbuild-executable=false \
    -Dbuild-player-backends=${PLAYER_BACKENDS_YOU_WANT}
sudo ninja -C build install

Note: ${PLAYER_BACKENDS_YOU_WANT} should be replaced with a comma separated list of gstreamer-opengl,gstreamer-cairo,gstreamer-clutter,mpv-opengl, for example -Dbuild-player-backends=gstreamer-cairo,mpv-opengl

meson build --prefix=$HOME/.local --libdir=share \
    -Dbuild-executable=false \
    -Dbuild-player-backends=${PLAYER_BACKENDS_YOU_WANT}
ninja -C build install

The gnome-twitch package comes with support for all player backends. You need to install the packages for the backend you want to use yourself.

For the gnome-twitch-git^AUR package instead you need to install one of the following packages to add support for that player backend:

• gnome-twitch-player-backend-gstreamer-cairo-git^AUR
• gnome-twitch-player-backend-gstreamer-opengl-git^AUR
• gnome-twitch-player-backend-gstreamer-clutter-git^AUR
• gnome-twitch-player-backend-mpv-opengl-git^AUR

apt-get will ask you which player backend you want to install when installing the main gnome-twitch package and pick the GStreamer-Cairo one if none are chosen. However you are also able to easily install one of the packages listed below should you want to use another one.

• gnome-twitch-player-backend-gstreamer-cairo
• gnome-twitch-player-backend-gstreamer-opengl
• gnome-twitch-player-backend-gstreamer-clutter
• gnome-twitch-player-backend-mpv-opengl

The Gentoo package offers USE flags, which can be used to build any of the player backends when building the main package. Check them out here

Due to the nature of cross-compiling it is very difficult to get software to work with drivers across multiple platforms. Therefore currently only the GStreamer-Cairo backend is guaranteed to work and is include by default in the installer.