Licson Lee says to YSITD ffmpeg -f dshow -i video=video_capture_device,audio=loopback -s 1920x1080 -c:v libx264 -c:a aac -x264opts keyint=6:min-keyint=6:scenecut=-1 -b:v 6000k -b:a 128k -f flv rtmp://server