I'm trying to set up ffmpeg to forward video stream from file to dummy video device created by v4l2loopback
My command looks like following:
ffmpeg -re -i video.mp4 -c:v rawvideo -pix_fmt yuv420p -f v4l2 -s 640*360 /dev/video0
However if I try to check it from browser, e.g. using http://testwebcam.com/ I only see some green silhouette. Probably I use wrong output format, but if I try -c:v mjpeg it reports an error:
V4L2 output device supports only a single raw video stream
Any help appreciated.
