enricobuehler
d6596ff81b
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Rework the client READMEs to be accurate and inviting to first-time
visitors, and fill in the gaps where crates and tools had none.
- Rewrite clients/{apple,android,decky} READMEs (features-first, trim
dense internal narrative; drop the stale "one session at a time" /
"renegotiation not implemented" section from the Apple README).
- Add READMEs for clients/{linux,windows,probe}, which had none.
- Add crate READMEs for punktfunk-host, punktfunk-core, pf-driver-proto.
- Add brief READMEs for tools/{loss-harness,latency-probe}.
- Fix packaging/README duplicate "Option B" heading (bootc -> Option C).
- Fix docs-site/README stale docs/ -> design/ reference.
- De-stale packaging/windows/drivers/pf-dualsense README (drop "M0 spike"
/ external-checkout framing; reflect in-tree workspace + shipped +
installer-bundled + multi-pad), keeping the driver-authoring lore.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2.7 KiB
2.7 KiB
punktfunk — probe (reference client)
punktfunk-probe is the headless reference client for the punktfunk/1 protocol — a
command-line tool for testing, latency measurement, and validating host behavior. It's not a
streaming app you'd watch on; it connects, exercises a plane, and reports numbers. If you want to
actually stream, use the Linux, Windows,
Apple, or Android clients.
Because it links the same punktfunk-core as every other client, it's also the canonical
example of driving the protocol end to end: QUIC control plane, UDP data plane, and the side planes
(input, audio, rumble) over QUIC datagrams.
What it does
- Receives a real stream, writes a playable
.h265, and reports per-frame capture→…→reassembled latency percentiles (the host stamps each frame with its capture clock). - Verification mode against a synthetic host — byte-checks deterministic test frames.
- Exercises every plane with scripted test traffic:
--input-test(mouse/keyboard),--mic-test(a 440 Hz Opus tone up to the host mic),--touch-test(a synthetic finger),--rich-input-test(DualSense touchpad + motion, logging the HID-output feedback that comes back). - Trust —
--pin <64-hex>pins the host fingerprint;--pair <PIN>runs the SPAKE2 pairing ceremony and prints the verified fingerprint to pin from then on. Without a pin it trusts on first use. - Discovery —
--discover [secs]browses the LAN for_punktfunk._udphosts and prints each (name, addr:port, pairing requirement, cert fingerprint), then exits. - Negotiation knobs —
--mode WxHxFPS,--remode(mid-stream mode change),--bitrate,--audio-channels(stereo / 5.1 / 7.1),--compositor,--gamepad,--launch,--speed-test.
Usage
# stream 720p120 from a host, save the video, and print latency percentiles:
cargo run -p punktfunk-probe -- --mode 1280x720x120 --connect HOST:PORT --out /tmp/a.h265
# list hosts on the LAN:
cargo run -p punktfunk-probe -- --discover
# pair with a host that requires it (read the PIN off the host), then stream:
cargo run -p punktfunk-probe -- --connect HOST:PORT --pair 1234
cargo run -p punktfunk-probe -- --connect HOST:PORT --pin <64-hex> --input-test
Full flag reference is in the module doc-comment at the top of src/main.rs.
Related
- Project README — the host, the streaming clients, and the protocol
punktfunk-host punktfunk1-host— the persistent native-protocol listener to probe against (see the "Running on this box" section of the repo README /CLAUDE.md)