Clone WebCam stream in mediastreamer2
I'm using mediastreamer2 for a video stream from a Webcam, via a RTP connection to another System.
I want to have 2 (or more) outgoing video streams, the first one initialized works fine, but the second stream is complaining, that the WebCam is busy.
libv4l2: error setting pixformat: Device or resource busy
Do you have any hints, and/or ideas how to clone the webcam video stream or another way to implement 2 videostreams?
thanks in advance! Mediastreamer2 is written in c , I'm using Ubuntu and Qt to code.
regards
Ok I have a solution :
Loopback is a nice packet to make virtual Webcams.
sudo apt-get install v4l2loopback-dkms //to install
sudo modprobe v4l2loopback devices=X // X = number of virtual cams
Copy Videosource from Real Webcam to Virtual ( check this page )
ffmpeg -f video4linux2 -s 352x288 -i /dev/video0 -codec copy -f v4l2 /dev/video1 -codec copy -f v4l2 /dev/video2 // this copys from video0 to the VirtualCams video1
Start Streams by selecting Virtual Cams
MSWebCam *cam = ms_web_cam_manager_get_cam(m,"V4L2: /dev/video1");