MJPG-Streamer Webcam

hello, I use a X96 Max 4 / 64GB box.
IR on / off, CEC with Samsung TV works perfectly.
The only thing I need is the playback of a livestream from my door intercom. If I turn off hardware acceleration, the stream will work.
The stream is generated by an RPI3 with MJPEG streamer.
/usr/local/bin/mjpg_streamer -i “input_uvc.so -r 640x480 -d /dev/video0 -f 30 -q 80” -o “output_http.so -p 9100 -w /usr/local/share/mjpg-streamer/www”
Call: http://ip:9100/?action=stream
Does anyone have any idea how this works with hardware acceleration turned on?