Cuttlefish: WebRTC

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WebRTC allows users to remotely control their Cuttlefish virtual devices from their browsers, without having to install any other software in the client machine. Other advantages of WebRTC are:

• More efficient encoding than VNC
• In-browser ADB
• Extensible protocol (camera stream, microphone, sensor data are all possible over WebRTC)

Use WebRTC

To use WebRTC and interact with your Cuttlefish device in your browser, do the following:

1. To launch your devices using WebRTC, add the --start_webrtc=true flag to your launch_cvd invocation.

   launch_cvd --start_webrtc=true
   

2. To see a list of all the devices you can connect to, point your browser to <https://localhost:8443>.

Port usage

Besides TCP:8443, WebRTC uses other ports to establish a connection and run. These ports must be allowed on the firewall if connecting from a different machine than where Cuttlefish is being executed. The list of ports needed are:

• TCP:15550..15599
• UDP:15550..15599