Can I use Mini Recorder as a camera?

is it possible to use the MiniRecorder Black Magic connection as a webcam in a Jitsi?
if yes how to do it, please?
I’ve tried to make virtual camera in webcast but jitsi writes to me that the camera is unavailable.
is there any way to use the video signal of capture card in Jitsi conference?

If that piece of hardware presents itself as a regular video camera then Jitsi Meet should be able to use it. Test it on https://test.webrtc.org/ and if it doesn’t work there, you are out of luck.