Clapper is a free and open source media player for Linux. It is released under open source GNU General Public License v3.0 and build using GJS and GTK4. It is based on GStreamer and OpenGL. It comes with hardware acceleration and MPRIS support. The UI is comes with Windowed Mode, Floating Mode and Fullscreen Mode. Some other good features are subtitles support and you can also play network streams, YouTube and you can also set audio offset to sync the audio.
Install Clapper Video Player on Ubuntu Linux
Clapper media player is available as flatpak package for Ubuntu Linux. First install flatpak on your Ubuntu linux system using the below tutorial link and restart your system after the flatpak installation.
Just skip above if you already have flatpak in your system. Open the terminal command line app (ctrl+alt+t) and run below Clapper flatpak install command.
flatpak install flathub com.github.rafostar.Clapper
After that you can start Clapper by using this command.
flatpak run com.github.rafostar.Clapper
You can also download the deb package file from here.