Mpv – A free, open-source, and cross-platform media player

My favorite feature of mpv so far is being able to apply CRT shaders in real time to content. This solution also handles properly downscaling HD videos into actual 240p buffers that then gets upscaled to your screen resolution by the shader.

https://i.imgur.com/akmgzxX.png

https://github.com/hhirtz/mpv-retro-shaders