feat(playground): add MJPEG live stream for iOS playground#2004
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Replace 5-second polling with real-time MJPEG streaming for iOS playground screen preview, providing a much smoother experience similar to Android's scrcpy stream.
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- Add wdaMjpegPort option to IOSDeviceOpt (default 9100) - Probe WDA MJPEG server once, cache result to avoid repeated failures - Fall back to polling mode seamlessly when native stream unavailable - Add clear logging to indicate which streaming mode is active
Also configure WDA MJPEG settings (quality, framerate, scaling) during iOS session setup to ensure the MJPEG server is ready when port 9100 is forwarded.
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yuyutaotao
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Feb 13, 2026
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Summary
/mjpegendpoint to PlaygroundServer that streams screenshots viamultipart/x-mixed-replace(standard MJPEG protocol), replacing the 5-second polling with real-time screen preview for iOS playground?fps=Nquery parameter (default 10, max 30), with error backoff to handle transient session unavailability during task executionScreenshotViewercomponent with an optionalmjpegUrlprop — when provided, renders a native<img>tag consuming the MJPEG stream and hides polling UI to stay consistent with Android's ScrcpyPlayerTest plan
cd packages/ios && pnpm run playground) and confirm the right panel shows a live screen streamhttp://localhost:5800/mjpegdirectly to verify the raw MJPEG stream works in the browsermjpegUrlpassed)