sudo apt-get install v4l-utils
### Listar los formatos disponibles
v4l2-ctl --list-formats
ffmpeg -f v4l2 -list_formats all -i /dev/video0
v4l2-ctl --device=/dev/video0 --set-fmt-video=width=1280,height=720,pixelformat=YUYV
v4l2-ctl --device=/dev/video0 --set-fmt-video=width=1280,height=720,pixelformat=MJPG
v4l2-ctl --device=/dev/video0 --get-fmt-video
mpv /dev/video0