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by rcruzeiro 2470 days ago
Youtube and netflix likely do this to discover TVs that you can cast your video to
2 comments

As far as I'm aware, AirPlay is handled at the OS level so the individual apps don't need permission for peer to peer AirPlay. And of course standard AirPlay is all mDNS for discovery.

For ChromecastI believe it's either SSDP or mDNS, and I don't think they have a P2P casting option IIRC.

The Cast SDK uses Bluetooth so "guests" can cast to your Chromecast.
Then Apple needs to implement an API handler for casting video to TV, instead of letting the app handle it.
It already does? AirPlay / AirDrop .