Add RTSP server about membrane_core HOT 5 OPEN

Hi @varsill @mat-hek
Since I also need an RTSP server, I decided to create a fork of membrane_rtsp taking inspiration from the server example mentioned in this issue. This is the work done so far.
It's not yet finished as I'm trying to wrap my head around the RFC. If you think we can add it to membrane_rtsp I'll create a PR.

from membrane_core.

It has turned out that there is already an implementation of a simple RTSP server in Jellyfish. I slightly modified it and added it to the rtsp_to_hls demo: https://github.com/membraneframework/membrane_demo/blob/master/rtsp_to_hls/server.exs

from membrane_core.

@varsill should we close this then?

from membrane_core.

As discussed - closing since no further development is required at this moment. In the future, we might want to rewrite the RTSP server in such a manner, that each message could be responded to within a callback.

from membrane_core.

Hi, it looks good to me! Feel free to open a PR, thanks ;)

from membrane_core.