RCWeb Screen View App

The RCWeb Screen View App (app/screen-view) is the viewer half of the RCWeb screen sharing pair. It follows the Asymmetric Pattern: viewers stay receive-only, while screen-control browsers in the same room publish WebRTC screen and audio streams into the page.

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What it does

• Receives room broadcasts: Discovers every compatible screen-control client in the room and requests a stream from each of them.
• Displays live media: Renders incoming screen feeds in a responsive grid and keeps any shared audio attached to the same video element.
• Reconnect tools: Provides per-stream and whole-room reconnect buttons so viewers can ask broadcasters to renegotiate a stream.
• Audio monitoring control: Lets the viewer enable or mute room audio locally to accommodate browser autoplay restrictions.

How it works

• RCWeb signaling: script.js uses rc.sendFunctionCall(...) to request streams, receive broadcaster presence updates, and exchange WebRTC answers and ICE candidates.
• Receive-only peer connections: Each broadcaster gets its own RTCPeerConnection with recvonly transceivers so the viewer stays passive and never captures local media.
• Broadcaster metadata: Lightweight presence messages keep the UI updated with broadcaster names and whether audio or video is currently available.
• Room cleanup: Stream cards are removed when RCWeb reports that a broadcaster has left the room or explicitly signals that it is closing.

Notes

• Remote shared audio may require a user click before the browser allows playback.
• Like the controller app, this viewer relies on STUN servers and does not include TURN relay support.

Launch RCWeb App