Dummy video device for eg. JOSM Posted by Zsolt Beringer on 21 May 2021 in Chinese (中文). modprobe v4l2loopback ffmpeg -re -f x11grab -draw_mouse 1 -show_region 1 -video_size 1024x768 -r 5 -i :0.0+32,32 -f v4l2 -vcodec rawvideo -pix_fmt yuv420p /dev/video1 Location: 47.487, 19.048 Comment on this entry Send a message to the author 3 comments