mpv

• no gui

config

ytdl-format="bestvideo[height<=?420]+bestaudio[height<=?420]"
vo=xv,drm
audio-pitch-correction=no
quiet=yes
pause=no
vd-lavc-skiploopfilter=all

[low-res-sharpen]
profile-cond=width<=960 or height<=540
sharpen=3