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Field note / 02Protocol

JPEG over WebSocket beat WebRTC on a lossy trans-Pacific link

A transport field note on JPEG over WebSocket, WebRTC keyframe recovery and rate-matched playout on one lossy China–US network path.

Packet loss on a China–US path turns WebRTC keyframe recovery into freezes you can watch.

Rate-matching generation to playout and sending JPEG frames over a single WebSocket removed the stalls, with movement control going up the same socket.

WebRTC stays everywhere the link is clean. This is a decision about one bad path, not a verdict on the transport.

Windflow EngineeringTransport

Field notes are short on purpose: one decision, what it cost, what we kept. The long write-ups land here when they are ready.