Streaming video from drone directly to RTMP server

Has anybody tried to send the video stream from the ANAFI’s camera directly into a specified RTMP server?

I’ve not seen this out of the box in the gsdkdemos. I’ve found third party solution that can take an external stream and stream that to an RTMP server, but I’ve not found a way to extract the video stream from the drone’s camera so I can feed it into the third party solution.