Add RTP stream support
Description
We want to be able do decode RTP stream in Sight. We can start from the work done in https://git.ircad.fr/Sight/fw4spl-video.
Proposal
- Write a new grabber service inspired from https://git.ircad.fr/Sight/fw4spl-video/blob/dev/Bundles/videoFFmpeg/src/videoFFmpeg/SFrameGrabber.cpp. Of course everything that this class needs should be imported.
- It should be able to read RTP streams of live camera at the 3rd floor
- It should be able to read a stream sourced by VLC for instance. For debugging, this will be convenient to have this.
- The performance of the grabber should be documented. It is very important for future work that we know the latency introduced by each element of the video processing pipeline.