Route cast to another VLAN

Hello, I was searching through a lot of websites and I couldn’t find answer to my problem.
I have two VLANs with different subnets.
I have smart TV on VLAN 1 and guest wifi is VLAN 2.
How can I make working casting from that guest wifi (VLAN 2) to my smart TV? I saw something about multicast IP’s, but I don’t know what and where to forward it…
I want to make working smartphone screen sharing, YouTube casting etc.

Easiest solution is to put the TV on the guest VLAN, usually such devices are insecure and should be away from your main network anyway. Otherwise you will need to allow routing between the VLANs and forward the multicasts with something like https://github.com/sonicsnes/udp-broadcast-relay-redux

I need it on my main VLAN, because that guest has speed limitation to 6Mb per user. Also I often cast videos from my computer, so the easiest solution for me would be route guest casts.

Thank you anyway, I’ll look at that link

Well, I found avahi reflector, which looks like my solution.
But I said something wrong - I have only one VLAN with ID 10 (guest network with 192.168.1) and my main (192.168.0) is not VLAN, it’s just as it is.
I installed it on my Raspberry Pi, set up VLAN interface eth0.10 and now I need to make both subnets accessible for RPi from that one ethernet port. How can I make it working? I found something about port trunk, but it’s everything for two and more VLANs. Is it possible to do it for VLAN and non-VLAN subnet? How?
I added screenshot of my current config
winb-set.png