Commit Graph
87 Commits
Author SHA1 Message Date
enricobuehlerandClaude Fable 5 7cf71dd218 feat(clients): the Apple deadline presenter reports its latch phase
Phase-locked capture had no client half on Apple — the host's v3 controller
(grid-locked submits, coherence-gated engage) shipped with only the Android
reporter feeding it. Now the stage-4 link thread flushes the same v2
circular arrival-phase statistic at ~1 Hz:

- PhaseReporter (Stage2Pipeline): the decode callback deposits per-AU
  reassembly-completion stamps, the CAMetalDisplayLink update deposits the
  latch grid (period = window-min of update spacing), and the flush ports
  punktfunk_core::phase::circular_latch verbatim — a period-smeared Wi-Fi
  link reads coherence ≈ 0 and the host correctly never engages; a wired
  link opens the gate. Binds/unbinds per session like DecodeReport.
- PunktfunkConnection.reportPhase wraps the existing ABI entry point.
- Hello honesty: iOS/tvOS advertise CLIENT_CAP_PHASE_LOCK (macOS stays
  without — the stage-2 arrival presenter has no latch grid), Android now
  sets the bit its reporter already earned, and the ABI grows the
  PUNKTFUNK_CLIENT_CAP_PHASE_LOCK mirror const (header regenerated).
  Advisory in v1: the host arms on report receipt.
- Stage-3 doc comment no longer calls itself the tvOS default (stage-4 took
  that over in the 2026-07 rebuild).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-31 17:41:46 +02:00
enricobuehlerandClaude Fable 5 c002ca8746 fix(clients): pen batches split at the wire cap and the heartbeat survives tracking mode
Three drawing-path defects on the pen clients:

- The Apple in-range heartbeat was re-armed on every emit (~120 run-loop
  mutations/s during a stroke) and lived in .default run-loop mode only — a
  tracking-mode excursion >200 ms with a stationary pen crossed the host's
  force-release failsafe and dropped the held stroke. Now one long-lived
  50 ms timer in .common mode, resending only after ≥50 ms of send silence.
- Both clients TRUNCATED an over-8-sample coalesced run instead of splitting
  it into consecutive batches (the send_pen contract): Apple suffix(8)
  dropped the oldest samples, the Android JNI clamped count. An over-cap run
  means the UI thread hitched — exactly when dropping stroke geometry hurts
  most. Apple splits in emit(); the Android JNI loops send_pen over ≤8-sample
  chunks (Kotlin's per-emit ceiling is now 64 = a >250 ms stall).
- The iOS letterbox mapper did a lock+FFI currentMode() read per coalesced
  sample on the main thread, contending the ABI lock the batch send takes
  next — now a 250 ms TTL cache (mid-stream requestMode still tracked).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-31 17:41:15 +02:00
enricobuehlerandClaude Fable 5 780791ed81 feat(android): the presenter's latch margin starts at zero and earns its width
The 2.5 ms submit margin ahead of expected present assumed
SurfaceFlinger latches well before the vsync. On-glass (NP3, 120 Hz)
that lead is not needed: with the margin at zero every release still
made its vsync (paced=0 across full sessions) - meaning the constant was
2.5 ms of pure display latency on every frame, and it was quantizing
away exactly the readiness gains the slice-overlap pipeline just bought.
e2e on the Linux-host pairing dropped from 22-24 ms to 14-18 ms.

The margin is now adaptive instead of assumed: it starts at 0 and only
widens (+500 us per 1 Hz window, capped at the old 2.5 ms) when the
paced counter shows real latch misses - one-way per stream, so a margin
that proved necessary is never re-gambled mid-session. A device that
needs lead converges within seconds; a device that doesn't keeps the
full win. debug.punktfunk.latch_margin_us (0..=8000) pins the margin
for rebuild-free sweeps, and the presenter logs the resolved mode at
stream start.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-31 17:34:31 +02:00
enricobuehlerandClaude Fable 5 4240b76182 feat(android): slices feed the decoder as they arrive, not when the AU closes
The decode loop used to hold every access unit until its last wire
packet landed. With slice-progressive delivery (frame_parts) each newly
contiguous piece now goes straight into MediaCodec under
BUFFER_FLAG_PARTIAL_FRAME, the closing piece drops the flag, and the
decoder chews the front of the frame while its tail is still on the
wire.

Feeding partial input means owning its failure modes without a codec
flush: a broken sequence (dropped piece, orphan, oversize) closes the
dead AU with an empty non-partial buffer at its own pts, arms the
re-anchor freeze so the concealed output never reaches glass, and
requests a recovery keyframe - the same machinery ordinary loss already
rides. Per-AU accounting keeps its units: the RFI gap detector notes an
AU once, and the HUD stamps, host/network split and the phase-lock
arrival sensor ride only the completing delivery.

The opt-in is decoder truth and loop truth: every decoder this device
would use must pass FEATURE_PartialFrame, and only the async loop may
see parts - the legacy sync loop feeds whole AUs and stays that way.
Smoke-checked on-glass (NP3 vs the Windows host): byte-identical
degenerate path, presenter profile unchanged.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-31 17:34:31 +02:00
enricobuehlerandClaude Fable 5 f4f83202cb feat(core/client): an AU's prefix reaches the decoder while its tail is on the wire
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Delivery used to be all-or-nothing: the decoder saw byte 0 only after the
last packet of the AU landed, so the whole transmit time sat in front of
decode. With the slice-streamed wire (previous commit) blocks now arrive
addressable, and a client can opt in (connect's new frame_parts) to
receive each AU's newly-contiguous prefix as Frame::part pieces - offset
tiling, first/last marked, the completing push carrying only the suffix.
A PARTIAL_FRAME-capable decoder then chews slices concurrently with the
remaining network transfer.

The reassembler walks a per-frame cursor over successfully-completed
blocks (failed FEC reconstructs don't advance it), coalesces blocks that
finished out of order into one part, keeps probe filler whole, and stops
short of the final block so the zero-padded tail still trims at
completion. Whole-frame consumers see byte-identical behavior - parts
never flow without the opt-in, and never on PyroWave (its newest-wins
draining assumes whole AUs).

Per-AU accounting keeps its units: OWD/ABR feeds, the inter-arrival
series and the clock-based jump-to-live detector only count completing
deliveries, and FrameChannel::depth() counts AUs so a part-rich queue
can't trip jump-to-live at a fraction of the real backlog. The consumer
contract (gap or orphan part = AU lost: abandon, flush, resync on the
next first) is documented on FramePart; the C ABI keeps parts off until
PunktfunkFrame can express them.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-31 14:14:46 +02:00
enricobuehlerandClaude Fable 5 43868af1f5 feat(android): the client advertises multi-slice tolerance per-decoder
The P0 gating branch deliberately left Android off VIDEO_CAP_MULTI_SLICE
("embedder-set decoder truth") — this is that deferred item, and the P2
slice-pipeline prerequisite. VideoDecoders.multiSliceTolerant() probes the
pick for every advertised codec: tolerant unless any pick is an Amlogic
decoder (the 0.17.0 device-rebooting wedge) or uninspectable (a null pick =
platform default → conservatively single-slice). nativeConnect carries the
bit; the JNI ORs it into the Hello's video_caps beside the panel-truth
HDR bits. Phones (Qualcomm/Exynos) advertise it; the Amlogic TV boxes the
gate exists for never will.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-31 14:14:46 +02:00
enricobuehlerandClaude Fable 5 759aac255b feat(phase-lock): controller v3 — grid-locked submits, arrival sensing, antipode damping
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Midday on-glass falsified v2's remaining assumptions: a per-frame additive
hold SATURATES the arrival-slaved loop once hold + work >= interval — submits
free-run at their own cadence and the commanded phase dissolves (measured:
+-2 ms hold steps, zero client response) — and the latch statistic hovers at
the target's ANTIPODE, where shortest-way errors sign-flip on noise (the
0<->2<->4 ms offset chatter).

v3, one change per falsified assumption:
- ACTUATOR: submits lock to an absolute grid (epoch + k x period + offset);
  the controller walks only the offset. A periodic grid cannot free-run —
  occupancy is one frame per period whatever the offset — so phase actuation
  is linear BY CONSTRUCTION. Disengaged = no grid sleeps = zero cost; every
  failure path DISENGAGES (never parks: v2's e2e-tax lesson).
- SENSOR: the client reports the circular mean + coherence of the ARRIVAL
  lead (per-AU reassembly stamps vs the panel latch grid) — the phase the
  host actually controls; latch measured downstream of the decoder pipeline,
  which absorbed the actuation. pf.phase logs "arrival lead circ= coh=".
- ANTIPODE DAMPING: errors within 1 ms of +-period/2 take half-steps until
  they commit to a side.

Harness rewritten around plants glass validated: a GRID plant (linear by
construction), the DECOUPLED plant (v2's saturation — must disengage, not
orbit or park), an antipode start (must converge within one period of
travel), incoherence (never engages), a regime change (re-engages after
backoff), and the actuator's own periodicity/offset-linearity. Also fixes
the harness's SIM_TARGET (a mis-derived max asserted 3.5 ms where the
controller's actual target is 2.5 — the controller was right, the ruler
was wrong; the Python cross-check inherited the same constant, a lesson in
replicating the CODE, not the author's belief about it).

Gates: v3 simulations 6/6; host bin suite 345/1 (the documented
environmental qemu UDP test); clippy --all-targets -D warnings clean;
cargo ndk arm64 check clean.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-31 12:20:39 +02:00
enricobuehlerandClaude Fable 5 4457356ee4 test(phase-lock): a closed-loop simulation harness — both on-glass failures become CI regressions
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The controller iterated twice on the user's gaming PC before this existed;
never again. punktfunk_core::phase::circular_latch is extracted from the
Android presenter (shared: iOS reports next, and the harness generates its
synthetic reports through the IDENTICAL statistic the clients ship), with
unit tests including the wrap-straddling cluster an arithmetic mean gets
maximally wrong.

The stream.rs harness models the plant — latch = (base − hold + noise)
mod P, deterministic LCG noise — and drives PhaseController::adjust through
five regimes:
- tight jitter locks into the deadband within ~5 adjusts and stops moving;
- a wrap-side start takes the SHORTEST way (travel < P/2 asserted);
- an incoherent phase never steps (zero hold, ever);
- a v1 pinned-median report trips the travel budget and DECAYS TO ZERO —
  the 2026-07-31 orbit and the parked-hold e2e tax, both as asserts;
- a post-decay regime tightening re-locks.

Gates: host bin suite 344 passed / 1 failed = the documented environmental
qemu UDP-loopback test (clean main fails identically in this container);
core phase tests 4/4; clippy --all-targets -D warnings clean.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-31 11:18:30 +02:00
enricobuehlerandClaude Fable 5 fe552a50bb fix(android): the phase reporter actually sends the v2 circular statistic
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The v2 client edit missed its anchor against rustfmt's reshaping and the
reporter kept sending the v1 median — caught by the arm64 build the moment
the tuple signature landed. Sends (circular mean, coherence) now.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-31 10:58:19 +02:00
enricobuehlerandClaude Fable 5 1d31e4c565 feat(phase-lock): controller v2 — circular phase, coherence gate, decay-to-zero
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Round-1 on-glass falsified two v1 assumptions in one morning (NP3 ↔ .173):

- A median lead is immovable under period-spanning jitter (uniform mod P),
  so v1 orbited the period at 2 ms/s forever — and the dead-signal freeze
  hotfix never armed, because ±1.5 ms of window sampling noise kept
  resetting its 'error responded' check. Thresholds can't referee noise.
- A HELD hold is not free: it delays sampling after the capture stamp,
  taxing e2e by up to a period (user-measured: ~+4 ms during the orbit).
  The correct failure response is DECAY TO ZERO, never freeze-in-place.

v2, all three layers:
- Wire: PhaseReport grows a length-discriminated coherence tail (27-byte
  form; the u16::MAX sentinel encodes as the byte-identical 25-byte v1 —
  strict-prefix discipline, both forms pinned by tests).
- Client: the reporter sends the CIRCULAR vector-mean latch phase mod the
  panel period + its coherence (‰); pf.present logs circ=/coh=.
- Host: steps only while coherent (floor 300‰; a v1 report bypasses the
  gate), along the signed SHORTEST way around the period, under a
  cumulative 1.25-period travel budget that is noise-immune by construction
  (it integrates applied steps, not reported errors); incoherence or budget
  exhaustion decays the hold to zero and re-arms once flat. Deadband
  convergence resets the budget — tight regimes lock exactly as designed.

report_phase + the C ABI mirror gain the coherence parameter (canary-only
ABI, hours old, sole caller in-tree). Gates: docker amd64 clippy
--all-targets -D warnings (host+core, nvenc) clean; core suite 244/244;
cargo ndk arm64 check clean.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-31 10:55:24 +02:00
enricobuehlerandClaude Fable 5 a5896f0883 feat(android): the phase-lock ACK is logged — the closed loop reads out in logcat
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The host's applied hold rides the 0xCF tail but nothing client-side showed
it; 'adb logcat -s pf.phase' now logs transitions. This line is what exposed
the dead-median controller orbit on the first on-glass run.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-31 10:12:56 +02:00
enricobuehlerandClaude Fable 5 fa822744ff feat(core/host/android): phase-locked capture — frames arrive on the client's latch schedule
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The host's capture tick and a client's panel vsync are independent ~120 Hz
oscillators; their drifting phase sweeps every frame's wait-for-latch across
a full refresh period (measured on-glass: latch p50 oscillating 5.4-8.9 ms
with a fixed margin) — the beat is the residual judder and the fat p95, and
no client can fix it alone. Design: punktfunk-planning
design/phase-locked-capture.md.

Protocol (punktfunk-core):
- PhaseReport (control 0x32, next to the clock family): the client's next
  display latch ALREADY CONVERTED to host clock (the skew offset lives only
  client-side), panel period, uncertainty, and the measured median
  arrival-lead — the controller's error signal. ~1 Hz, latest-wins.
  CLIENT_CAP_PHASE_LOCK advertises it; CtrlRequest::Phase + report_phase()
  + the C ABI mirror carry it.
- The 0xCF host-timing tail grows a phase ACK (applied_phase_ns, 29-byte
  form) under the same strict-prefix append discipline — old readers parse
  the shorter forms; degradation pinned by tests.

Host engine (arrival-slaved loop — no backend can move the source vsync,
per the tick-ownership audit in the design doc):
- PhaseCtl bridges control task → encode loop (the fec_target pattern,
  multi-field). PhaseController walks a per-frame HOLD before submit toward
  the client's reported lead hitting target = max(2.5 ms, uncertainty+1ms):
  1 Hz adjust, 2 ms max step, 300 µs deadband, period-wrapping (the
  newest-wins capture slot makes a wrapped hold sample fresher content, not
  staler). A loop local, so every mid-stream rebuild keeps the lock; a new
  session re-acquires. PUNKTFUNK_PHASE_LOCK=0 disarms.

Android reporter: the presenter's 1 Hz pf.present flush returns the
window's measured latch p50; the async loop converts the vsync clock's next
timeline monotonic→realtime→host and reports. Inert toward old hosts.

Gates: docker amd64 clippy --all-targets -D warnings (host+core, nvenc)
clean; core suite incl. the new wire tests; cargo ndk arm64 check/clippy
clean. On-glass A/B vs the .173 host owed.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-30 23:44:09 +02:00
enricobuehlerandClaude Fable 5 f9faab780e tune(android): the latch margin drops to SF's real lead (2.5 ms)
Each ms of submit-margin is a ms on every frame's display stage; SF's latch
runs ~1-2 ms before present and the release is a sub-ms binder call, so 4 ms
was padded. Measured (A024, 120 Hz game load): latch p50 8-10 → 5.4-8.9
(phase-drift dependent), paced stays 1-5/s. A device that misses at this
margin shows it as a paced-counter rise, not stutter — the widen signal.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-30 23:44:09 +02:00
enricobuehlerandClaude Fable 5 a6ff0350e4 feat(android): frames target SurfaceFlinger's latch, not the GPU-render deadline — display 21→9.5 ms
The remaining ~21 ms display stage was the conservative release target: the
presenter aimed at the first frame timeline whose DEADLINE was still ahead,
and the platform's deadline budgets for GPU rendering the app has yet to
submit (presDeadline = 11.3 ms on the A024 — more than a full 120 Hz
period). A decoded video buffer has no GPU work left; its only real
constraint is SurfaceFlinger's own latch lead. Every frame paid a whole
extra refresh of waiting for a budget it never used.

next_target now gates (and subdivides) on the timeline's EXPECTED PRESENT
minus a 4 ms latch margin; the glass budget reopens at that latch instant
(expected present − margin) rather than the deadline, which under the
aggressive gate can already lie in the past — an instant reopen would let
two releases pile onto one vsync. A mis-gamble presents one vsync later,
which is exactly what the deadline gate paid on every frame — the trade is
one-sided.

On-glass (A024, 2800×1260@120 HDR, game load): latch p50 21→8-10 ms,
display 26,3→9,5 (pace 0,8 + latch 7,7), e2e 43,7→26,4 p50 / 29,2 p95,
released=displays=120, paced≈0, forced=0. The latch now sits under one
refresh interval — the vsync-latch floor.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-30 23:44:09 +02:00
enricobuehlerandClaude Fable 5 984f7be896 fix(android): the presenter paces to the panel's real grid, not the app's down-rated vsync
On-glass (A024, 120 Hz panel, 120 fps session) the first presenter build
released only 60/s and the HUD display term hit 40 ms. Root cause, in two
layers: Android down-rates a game-category uid's choreographer stream to
60 Hz (frame-rate categories / game default frame rate), and under that
override Display.getRefreshRate REPORTS THE OVERRIDE — so the presenter's
panel grid read 16.67 ms on an 8.33 ms panel and the subdivision became a
no-op, pacing the video at half rate and dropping every other frame.

Three-part fix, verified live on the same device:
- Kotlin passes the panel rate from the supported-modes TABLE
  (MainActivity.streamPanelFps — the mode list is not override-filtered)
  instead of display.refreshRate, and votes the app's render rate up via
  View.requestedFrameRate = streamHz (API 35+) while streaming.
- The native vsync clock LEARNS the panel period from observed timeline
  spacing (downward-only: the finest spacing SurfaceFlinger ever reports is
  the true grid) and next_target subdivides the reported timeline onto it —
  full-rate on down-rated devices, a no-op where callbacks match the panel.
- OnFrameRendered display/latch samples get the e2e clamp (0..10 s): a
  vendor's first callbacks can carry a garbage system_nano (observed: an
  epoch-sized latch max) that would poison every max it lands in.

pf.present gained panelMs next to vsyncMs, and a one-shot cadence
diagnostic logs Δ/timelines/spacing/panel on the third tick.

After: released=120 displays=120 paced=0, pace p50 <1 ms, latch p50 ~16 ms
idle / ~22 ms under game load (2 refresh intervals at 8.33 — the same
composited-pipeline law the Apple client measured), HUD display ~17-26 ms
vs 40 before.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-30 23:44:09 +02:00
enricobuehlerandClaude Fable 5 e08fd91cd1 feat(android): a timeline presenter — frames reach glass on the panel's schedule, not decode's
The Android port of the Apple client's stage-4 deadline discipline, closing
the side-by-side feel gap (both clients 120 Hz; Android released decoded
buffers the instant they appeared, with zero vsync awareness — the latch
phase inherited every network+decode jitter and bursts queued behind the
display).

The presenter (async loop only; the sync loop stays the untouched escape
hatch behind the Low-latency toggle):

- decode/vsync.rs: an AChoreographer thread (dlsym'd like the other
  above-floor symbols) publishing the panel's vsync grid + frame timelines
  (postVsyncCallback, API 33; postFrameCallback64 fallback on 31/32) and
  ticking the decode loop's event channel. Started lazily on the first
  decoded frame.
- decode/presenter.rs: a newest-wins slot (Lowest latency, default) or a
  1-3 frame smoothing FIFO with preroll/underflow re-arm (Smoothness) between
  decode and release; a glass budget of exactly ONE undisplayed release in
  flight, reopened at the target timeline's DEADLINE (SurfaceFlinger's latch
  — reopening at present time would halve the sustainable rate) with a 100 ms
  stale force-open backstop; the release itself via
  releaseOutputBufferAtTime(expectedPresent) so the latch phase is
  deterministic. debug.punktfunk.presenter=arrival sysprop restores the
  legacy path for a rebuild-free on-device A/B.
- Metrics: DisplayTracker is now always-on and carries the release stamp, so
  the display stage splits into pace (decoded→release) + latch
  (release→displayed); a 1 Hz pf.present logcat line (released/displays/
  paced/noBudget/forced/qDry + pace/latch p50/max + measured vsync) makes a
  HUD-off wireless A/B readable; nativeVideoStats grows to 30 doubles
  (26=paceP50, 27=latchP50, 28=presents, 29=presenterActive; 0-25 frozen)
  and the DETAILED HUD prints the split + presents.
- Intent parity: present_priority/smooth_buffer — the Apple client's
  stored values and labels — as globals, profile-overlay fields (round-trip
  + scope markers), and Settings pickers under Decoding; threaded through
  nativeStartVideo into the presenter config.

Verified: cargo ndk check/clippy clean for arm64 (the two type_complexity
warnings are pre-existing audio/mic ones), armv7 via the kit gradle task,
host cargo check clean, rustfmt clean, gradle :app/:kit unit tests all pass.
On-device before/after on the Nothing Phone 3 still owed.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-30 23:44:09 +02:00
enricobuehlerandClaude Fable 5 87b6fa8813 feat(android): the panel is pinned to the stream's refresh, and touch skips the vsync batch
Three quick latency wins for phones, ahead of the presenter rebuild:

- setStreamDisplayMode: the window-level preferredDisplayModeId is pinned to
  the stream's refresh (exact rate, else the smallest integer multiple, else
  the highest available) for the session. The surface-level frame-rate hint
  alone is advisory and some OEM refresh governors (Nothing OS's LTPO logic
  among them) ignore it for third-party apps — leaving a 120 Hz session
  presenting on a 60/90 Hz panel. nativeVideoSize gained a trailing
  refreshHz element for this (old readers index only 0/1). TV keeps the
  native HDMI mode switch instead.
- The surface hint itself now passes compatibility = FIXED_SOURCE on every
  form factor: the stream is fixed-rate video the client cannot re-pace;
  DEFAULT invited governors to not switch.
- requestUnbufferedDispatch(SOURCE_CLASS_POINTER) on the hosting view while
  streaming: touch/pointer events were vsync-batched — up to a frame of
  input latency the stream shouldn't pay.
- The HUD polls the panel's live refresh each second and flags '⚠ panel N Hz'
  when it sits below the stream rate, so an unpinned panel is visible instead
  of reading as inexplicable judder. Stale nativeStartVideo kdoc (low-latency
  'off, the default') corrected — it defaults ON under low_latency_mode_v2.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-30 23:44:09 +02:00
enricobuehlerandClaude Fable 5 1984ddb942 feat(android): a USB Sony pad is captured — rumble, adaptive triggers, lightbar, gyro
A DualSense on a phone had rumble only where the kernel exposed force
feedback, and adaptive triggers / lightbar / player LEDs nowhere — Android
has no platform API for any of them, and Bluetooth offers no raw path
(L2CAP is LE-only; hidraw is root-sealed — Sony's own Remote Play declares
Android triggers unsupported). Claiming the pad's HID interface over USB is
the one unrooted route, so that is what the client now does.

- HidUsbLink: the device-agnostic half of Sc2UsbLink (claim, multiplexed
  UsbRequest loop, newest-wins write queue, signalled-unplug discipline),
  parameterized by device match / interface filter / keep-alive. Sc2UsbLink
  keeps only its SC2 specifics (Puck interfaces 2..5, lizard refresh).
- GamepadFeedback.PadFeedbackSink: 0xCA rumble + 0xCD Led/PlayerLeds/
  Trigger now route to a capture link that owns the pad BEFORE the
  InputDevice vibrator/lights paths — Trigger stops being log-and-drop.
- DsDevice: the byte-exact inverse of the host's dualsense_proto /
  dualshock4_proto — input report 0x01 parse (buttons/sticks/triggers,
  gyro+accel, both touch points; Edge FN/BACK → wire paddles) and output
  builders (DS5 0x02 valid-flag-selective incl. the 11-byte trigger blocks
  and the lightbar-animation release; DS4 0x05 as composed full-state
  writes). Covered by DsDeviceTest (pure JVM).
- DsCapture: stream-mode capture for DualSense / Edge / DS4 — lazy wire
  slot on the first parsed report, typed mirror (exit chord included),
  touch normalized onto the rich plane + per-report motion, feedback
  rendering with a rumble backstop (a USB pad holds its level, so a
  stalled poll thread self-terminates via a scheduled zero-write) and a
  teardown motor-stop over EP0. The claim releases the pad's InputDevice
  slot itself so the wire index hands over deterministically; uncaptured
  (toggle off / permission denied / Bluetooth) the pad stays on the
  ordinary InputDevice path.
- Rich-input shims: nativeSendPadTouch / nativeSendPadMotion →
  RichInput::Touchpad / Motion — the plane the desktop and Apple clients
  already feed; Android pads gain gyro + touchpad on the virtual pad.
- Settings: "DualSense / DualShock passthrough (USB)" (ds_capture, opt-out
  like the SC2 toggle); Controllers screen card with capture status and a
  front-loaded USB grant so streams start without the permission dialog.

The host needs nothing: the DS5/DS4 backends already consume the typed +
rich planes and already emit every feedback event rendered here.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-30 18:34:57 +02:00
enricobuehlerandClaude Opus 5 a94b1d3ccc fix(client/android): the stream keeps its aspect instead of stretching to the panel
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MediaCodec scales whatever it decodes to fill the Surface it renders into,
and the Surface filled the screen — so a stream whose resolution didn't
match the panel's aspect came out stretched. Nothing downstream of the
Surface can correct that; the Surface itself has to carry the aspect.

Size the video to the negotiated mode's ratio, centred, with the remainder
black. The mode is known from the handshake before the first frame arrives,
via a new `nativeVideoSize` (the same `client.mode()` the HUD already
reports as `w×h@hz`); an older native lib returning nothing falls back to
filling, exactly as before.

Input follows the picture. Direct-pointer touch, multi-touch passthrough
and the pen lane all map positions against the size of the node they sit
on, so the gesture layer moves onto the same rect as the video and all
three stay correct by construction instead of each needing an offset
threaded through it. The physical-mouse path can't work that way — its
events arrive from the activity in WINDOW coordinates — so it now measures
against the SurfaceView's rect on screen, subtracting the letterbox origin
and clamping into the picture: a pointer out on a bar has no host position
of its own, and the edge is the honest answer for it.

One deliberate consequence: trackpad swipes that START inside a letterbox
bar no longer register. Trackpad input is relative and could have kept the
whole panel, but one rule — input lands on the picture — beats a mode-
dependent input surface, and the pen lane rides inside trackpad mode too.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-30 00:48:38 +02:00
enricobuehlerandClaude Opus 5 6a6be17ce7 fix(client/android): a session that receives no video at all now asks, and says so
The keyframe backstop added for the black LG TV only arms while AUs are
actually going into the decoder (`fed > fed_at_output`) — deliberately, so
an idle stream never asks for anything. That leaves its mirror image
uncovered: a session that receives NOTHING. A decoder cannot be starved of
output when it was handed no input, so no signal in either loop fires, and
the session sits connected — audio, input and the control plane all alive —
behind a black surface.

That state is what a user just reported as "the stats are all basically 0":
fps and Mb/s are counted at AU receipt (`note_received`), so all-zero stats
with a drawn overlay means the decode thread started and received nothing.
Same bug as the black screen, seen from the HUD.

Both loops now watch for it: nothing received 1.5 s into a session ⇒ request
a keyframe and log it, re-asking every 2 s while it lasts. Where it can help
it does — the host encoding fine while every picture references an IDR this
client never saw is precisely a keyframe request away. Where it can't, the
log line is the point: "no video received N ms into the session" separates
"the host never sent a picture" from "we received AUs and lost them", which
no previous black-screen report could distinguish.

Not a root cause. The remaining occurrences are still unattributed — this
makes the next report diagnosable and recovers the case that is ours to
recover.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-30 00:30:59 +02:00
enricobuehlerandClaude Fable 5 9b2404a580 feat(core): every connect introduces the device by name
The wire always had Hello.name and the host always honored it - but the
connect path hardcoded None (only the PIN-pairing ceremony sent a name),
so every no-PIN "request access" knock surfaced as the fingerprint
placeholder "device abcd1234", and approving one without retyping a
name persisted that placeholder into the trust store forever.

NativeClient::connect now takes the device name. The session workers
and the probe connects pass trust::device_name() (the hostname), the C
ABI defaults to the same without a signature change (an ex10 variant
can make it explicit if an embedder wants a custom label), and Android
threads Build.MODEL through nativeConnect - the same convention its
pairing dialogs already use for nativePair.

The host, in turn, resolves the streaming client's display name (trust
store first, so an approval-time rename wins; else the sanitized Hello
name) and exposes it as client_name in GET /api/v1/local/summary for
the tray's connect toast - a deliberate, documented loosening of that
route's "no device names" contract, in the local user's favor: it tells
them who is on their machine. A paired-but-idle device's name still
never appears, which the mgmt tests now pin explicitly. openapi.json,
its docs-site copy, and the SDK bindings regenerate.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-29 21:32:50 +02:00
enricobuehlerandClaude Fable 5 63224cd31d feat(client/android): the eighth field carries the OS, and cards wear it
The JNI discovery record appends `os` as its eighth ␟-field (append-only —
the Kotlin parser's arity guard already tolerates both old and new records,
now pinned by tests in both directions), sanitized on the Kotlin side by the
mirrored chain grammar next to the shared `osIconTokens` walk. `KnownHost`
persists it additively (optString — no schema bump, migration passes it
through) with `learnOs` beside `learnMac`, learned on the same discovery tick.

Compose ships no brand icons, so OsIcons.kt vendors the ten marks as raw SVG
path strings built into ImageVectors via PathParser (lazy, cached) — they tint
with the Material theme like any Icon. The host card's address line leads with
the mark, live advert preferred over the stored chain.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-29 17:58:33 +02:00
enricobuehlerandClaude Opus 5 e44baf6768 fix(client/android): a decoder fed nothing it can decode must ask for a new anchor
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An Android TV box reported a black screen with a perfectly healthy HUD: AUs
arriving at 40 fps, ~312 bytes each. That size is all-P-frames — no IDR anywhere
in the window, and nothing asking for one. The stats being readable is the rest
of the story: the overlay is a layer over the SurfaceView in the same window, so
the panel was fine and the surface simply never received a frame.

The decode thread only starts at `surfaceCreated`, so a slow box can be handed
the stream mid-GOP. A hardware decoder does not error on references it never
had; it emits nothing at all. Under infinite GOP the host sends no further IDR
unless asked, and neither Android loop ever asked: every recovery trigger they
have keys off a drop, a gap or a decode error, and a decoder that quietly
produces nothing trips none of them. The session stayed black for its whole life.

The shared gate has this case (`on_no_output`, which pf-client-core and the Apple
client both feed) but its per-AU streak counts one-in/one-out decodes, and
MediaCodec is pipelined — "this AU produced no output" is not something these
loops can observe. A wall-clock silence window is the same signal in the shape
Android can measure: fed for 500 ms with nothing coming back arms the freeze and
requests a re-anchor keyframe, and the gate's deadline keeps re-asking until one
lands. 500 ms so it can never fire on a decoder that is merely slow to spin up.

Also log the first presented frame. The periodic tally starts at 300 rendered
frames, which is no help whatsoever on a session that renders none — its absence
is what separates "never reached glass" from "reached glass and looked wrong".

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-29 17:57:13 +02:00
enricobuehler 02f7cfbb1d feat(client/android): the speed test, writing where the tested host actually reads
Android had no speed test at all — the one client where "what bitrate should
I use?" had no answer but guessing. It measures over the REAL data plane: a
minimal 720p connect, then the host bursts filler for two seconds, so the
answer is about the link this host's stream will take rather than generic
throughput. Two new JNI calls (`nativeSpeedTest` / `nativeProbeResult`) front
the core's probe, deliberately measure-only.

The measurement is the easy half. The half that was wrong on every client for
a long time is WHERE the answer goes. A measured bitrate belongs in the layer
the tested host actually resolves bitrate from (design §5.3): its bound
profile's override if it has one, the global if the host is unbound — and if
the host is bound to a profile that INHERITS bitrate, both are defensible, so
the user gets both buttons instead of us guessing. That target depends only on
the host, so it is known before the result lands and the button can say where
it will write: "Apply to “Travel”". Writing the global unconditionally — the
old behaviour everywhere — is what made measuring the slow box downstairs
quietly re-tune the desktop.

Reachable from the host card's overflow and from the console's host options: a
TV box on a powerline adapter is exactly the machine whose link is worth
measuring, even though profile editing stays off that surface.

While there: a successful write no longer renders in the error container. The
connect screen's one status line was red by design — correct for a failure,
a small lie for "75 Mbit/s set in “Travel”" — so confirmations got their own.

Verified on the emulator against a real host: 108 Mbit/s measured on a host
bound to a bitrate-setting profile, target resolved to that profile, and Apply
wrote 75397 kbps into the profile's overlay with the global untouched and the
profile's other overrides unmoved.
2026-07-29 12:17:18 +02:00
enricobuehler 8172e819a4 fix(client/android): the JNI crate wouldn't build under the unsafe-op lint
`unsafe_op_in_unsafe_fn` is denied workspace-wide, and two operations in the
render-callback path were still bare inside their `unsafe fn` — so every
Android build failed at `cargo ndk`, before any Kotlin work could reach a
device. Pre-existing on main and unrelated to the Android settings/profiles
work; found by building the APK for it.

Both get the explicit block and the SAFETY note their neighbours in the same
file already carry: the reclaimed pointer is the one `install_render_callback`
leaked, and the callback's `userdata` is that same pointer, alive for as long
as the codec that delivers the call.
2026-07-29 12:17:18 +02:00
enricobuehler 5219107177 chore(unsafe): the workspace adopts the drivers' unsafe discipline
`packaging/windows/drivers/*` has run `deny(unsafe_op_in_unsafe_fn)` +
`deny(clippy::undocumented_unsafe_blocks)` for a while, with `forbid(unsafe_code)`
on the modules that need no unsafe at all. The main workspace had no lint config
whatsoever, so nothing stopped a clean crate from quietly growing an `unsafe`, and
nothing distinguished the handful of genuinely-unsafe lines inside a 600-line
`unsafe fn` from the safe ones surrounding them.

Three things, all mechanical:

* `#![forbid(unsafe_code)]` on the eight crates that already contain zero unsafe
  (`pf-driver-proto`, `pf-host-config`, `pf-paths`, the three clean clients, both
  tools). These were clean by accident, not by contract; now they are clean by
  contract.

* `unsafe_op_in_unsafe_fn = "warn"` workspace-wide. `unsafe fn` states a contract
  the CALLER must uphold — it was never meant to switch off checking for the whole
  body. Measured fallout is 300 sites on Linux, and they are concentrated: six
  files carry all of them, while `punktfunk-core`, `pf-frame`, `pf-clipboard` and
  `pf-vdisplay` are already at zero. `warn` (not `deny`) so the build stays green
  while those six are worked down; it flips to `deny` once they are. This is also
  the Rust 2024 default, so it pays off the edition migration early.

* `proc::current_uid()` replaces eight `unsafe { libc::getuid() }` blocks. Each
  site had copied out the same SAFETY note verbatim, which is the tell: `getuid()`
  is parameterless, always succeeds and touches no memory, so there is no contract
  for a caller to uphold and no reason for the unsafe to be visible eight times.
  One `unsafe` behind a safe wrapper, none at the call sites.

Verified: `pf-vdisplay` builds clean on Linux (Nobara) at zero E0133; the
macOS-buildable crates build clean locally. No behaviour change.
2026-07-28 21:31:41 +02:00
enricobuehlerandClaude Fable 5 c0f792ee8d feat(android): pen P5 — stylus capture onto the pen plane
The Android leg of design/pen-tablet-input.md §7: against a HOST_CAP_PEN host,
stylus/eraser pointers split out of BOTH touch models (passthrough + gesture)
into StylusStream — state-full samples with pressure, AXIS_TILT, azimuth from
AXIS_ORIENTATION (Android's 0 = away-from-user IS wire north), AXIS_DISTANCE
hover, both stylus barrel buttons, the eraser tool, and historical (coalesced)
samples batched oldest-first. Kotlin heartbeats ≤100ms per the wire contract.
JNI: nativeHostSupportsPen + nativeSendPen (flat 10-float stride, sentinels
<0). No barrel-roll axis exists on Android — roll stays unknown here.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-23 16:48:57 +02:00
enricobuehlerandClaude Fable 5 4a01bc4463 feat(core+host+client): cursor channel — remote-desktop sweep M2a+M2b
The host cursor stops riding the video and becomes a real OS cursor on
the client (the Parsec/RDP model): pointer feel no longer pays the
capture→encode→network→decode→present round trip.

Wire (M2a):
- Hello grows a client_caps trailing byte (CLIENT_CAP_CURSOR) after the
  fixed display_hdr block — presence disambiguated by remaining length,
  which caps the post-HDR tail at 27 bytes (documented); Welcome answers
  HOST_CAP_CURSOR (capable-and-asked, the 444/clipboard precedent).
- CursorShape (0x50, control stream): serial + dims + hotspot + straight
  RGBA, ≤120px/side so the u16 frame always fits (128² would overshoot);
  client caches by serial — re-showing a known shape costs 14 bytes, not
  a bitmap (RDP pointer-cache for free).
- CursorState (0xD0 datagram): serial + visible/relative_hint flags +
  position, sent once per encode-loop tick — latest-wins, self-healing
  under loss, no refresh timer. relative_hint is reserved for M3.
- Client core: two new planes (control-task + datagram-task arms) →
  next_cursor_shape/next_cursor_state; connect() grows client_caps
  (C ABI passes 0 until the v11 cursor poll fns exist).

Host (M2b, Linux portal only):
- handshake::cursor_forward is THE predicate (client asked ∧ Linux ∧
  compositor ≠ gamescope) — Welcome bit and session wiring both read it.
- SessionPlan.cursor_blend goes false for a forwarding session; the
  encode loop ticks a CursorForwarder every iteration: shape-serial diff
  → control-task bridge (mirrors probe_result), state datagram → conn.
- CursorOverlay/capture CursorState carry the hotspot through
  (nearest-neighbor downscale backstop for XL cursors, unit-tested).

Presenter:
- CursorChannel drains both planes per loop iteration; shapes become
  SDL color cursors (from_surface + hotspot), applied while the desktop
  mouse model is engaged; visibility follows the host; capture/released
  hands back the system cursor. Sessions advertise the cap when they
  START in desktop mode.

Verified on .21: fmt + clippy -D warnings (7 crates) + tests green
(core 218 incl. new wire roundtrips, host 245 incl. e2e + forwarder
downscale tests).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-22 23:43:23 +02:00
enricobuehlerandClaude Fable 5 c90343c22f feat(android): shared clipboard (text) — device↔host sync while streaming
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The desktop clients' clipboard protocol, adopted on Android (text-only v1):
opt-in ClipControl at stream start when the host advertises HOST_CAP_CLIPBOARD
and the new "Shared clipboard" setting (default on) allows.

Device → host: local copies (primary-clip listener + a probe at start) are
announced as lazy format-list offers; the text crosses only when the host
actually pastes (FetchRequest → served from the live clipboard). Host →
device: a host copy's offer is fetched eagerly and lands in the system
clipboard (Android has no practical lazy-paste provider), with an echo guard
so the resulting clip-changed callback doesn't bounce it back as a new offer.

Native side: session/clipboard.rs JNI shims over NativeClient's clip_*
surface; events cross to Kotlin as compact strings from a blocking
nativeNextClip poll on a dedicated thread (the nativeNextRumble pattern),
joined before the session handle is freed.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-22 19:27:19 +02:00
enricobuehlerandClaude Fable 5 abe6228b42 feat(core+host+android): committed-text input plane (IME path) — InputKind::TextInput
The VK key-event vocabulary cannot express text an input method COMMITS
(autocorrect, gesture typing, non-Latin scripts, emoji). Add a first-class
text event and negotiate it:

- punktfunk-core: InputKind::TextInput (= 15) carries one Unicode scalar per
  event in `code`; HOST_CAP_TEXT_INPUT (0x04) in Welcome::host_caps.
- Host advertises the cap only where the session's inject backend can type
  text: Windows SendInput (KEYEVENTF_UNICODE, surrogate-pair aware) and the
  Linux wlroots backend — a dedicated second zwp_virtual_keyboard whose xkb
  keymap grows Unicode keysyms on demand (the wtype model), so keymap
  re-uploads never disturb the main device's layout/modifier state. The
  KWin-fake-input/libei/gamescope backends can only press layout keycodes, so
  those sessions don't set the bit and clients keep the VK fallback.
- GameStream plane: Moonlight's UTF-8 text packet (MAGIC_UTF8, previously
  recognized-and-dropped) now decodes to the same TextInput events.
- Android: KeyCaptureView picks a real editable InputConnection when the host
  has the cap — the IME runs its full machinery, mirrored to the host live via
  common-prefix diffs of the composition (backspaces + new suffix), with
  setComposingRegion adopting committed text so autocorrect-revert flows diff
  instead of retyping; newline→Enter, deleteSurroundingText→Backspace/Delete.
  Older hosts keep the TYPE_NULL raw-key path unchanged.
- keymap: media VKs (0xB0-0xB3) → evdev so the Android media keys land on
  Linux hosts too.

Verified: punktfunk-core + host gamestream + pf-inject tests green on Linux
(Ubuntu box), clippy clean; Android app+native builds.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-22 19:19:11 +02:00
enricobuehlerandClaude Fable 5 a784682d4c fix(client/net): split the receipt stamp from the pull + bleed standing latency
ci / docs-site (push) Successful in 56s
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The two-pair investigation (wired Mac clients stuck at a rock-steady
~18-19 ms "network" that survived the load ending and cleared only on
reconnect) exposed two structural gaps, one of measurement and one of
recovery:

- Receipt was stamped at the hand-off PULL (Swift nextAU, pf-client-core,
  Android decode loops), not at reassembly completion — so any client-side
  standing state between the reassembler and the pull read as NETWORK
  latency, undiagnosable from the HUD. ABI v9: `PunktfunkFrame`/`Frame`
  grow `received_ns`, stamped by `Session::poll_frame` as the AU crosses
  the session boundary. Every embedder now uses the core stamp; the Apple
  client keeps the pull instant as `AccessUnit.pulledNs` and shows the
  receipt→pull wait as its own "client queue" term (detailed HUD tier from
  2 ms + a `queue_p50` stats-log field). Decode stages keep their pull
  anchor on all platforms, so no historical stage shifts meaning.

- The jump-to-live detectors deliberately ignore anything under 6 queued
  frames / 400 ms behind — so a small, constant, loss-free elevation (a
  sub-frame standing backlog, or a stale clock offset after a wall-clock
  step/slew) is carried for the rest of the session. New third detector
  (`StandingLatency`, unit-tested ladder): window-MIN one-way delay
  ≥ 10 ms above the session floor with zero loss for ~4.5 s escalates
  gently — a free clock re-sync first (an applied re-sync re-bases the
  floor), then at most 3 flush+keyframe bleeds sharing the jump-to-live
  cooldown, then a loud disarm naming what it means. Loss windows reset
  the run: congestion belongs to FEC/ABR, not this detector.

Also: mid-stream re-sync apply/discard logs debug→info — they are the
forensic trail for the stale-offset case and were invisible in the field.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-19 23:38:11 +02:00
enricobuehlerandClaude Opus 4.8 f439b69451 refactor(android/W8): split decode.rs into decode/ directory module
Break the 1747-line clients/android/native/src/decode.rs into a decode/ directory
module (mod.rs + 5 concern submodules):
  - decode/setup.rs      : codec creation + low-latency config + thread/frame-rate
                           tuning + HDR static-info encode
  - decode/display.rs    : DisplayTracker + render-callback registration + HDR dataspace
  - decode/latency.rs    : realtime clock + decoded-pts / user-flags stat recording
  - decode/sync_loop.rs  : the synchronous poll decode loop (+ feed/drain) — moved WHOLE
  - decode/async_loop.rs : the event-driven async decode loop (+ helpers) — moved WHOLE
decode/mod.rs keeps the consts, DecodeOptions, and the `run` entry point + the
`codec_mime`/`codec_label` re-export, so every crate::decode::X path stays byte-stable.
The module has no decoder struct (free functions + small types), so both decode loops
move byte-for-byte and their separately-inlined received-stat recording is NOT unified.
16 helper fns/types became pub(super) for sibling access; zero field bumps. lib.rs
unchanged (`#[cfg(target_os="android")] mod decode;` resolves to decode/mod.rs).

Verified: cargo-ndk check (aarch64-linux-android, clean) + the gradle cargoNdkDebug
build (arm64-v8a / armeabi-v7a / x86_64). On-device runtime re-verification still owed
per the plan (the two decode loops are a hot path).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-17 15:06:24 +02:00
enricobuehlerandClaude Fable 5 13b1f36d4a feat(core,clients): one rumble policy engine for every platform (rumble root fix D)
punktfunk-core client/rumble.rs: a per-connection policy engine consumes seq-gated wire
updates and emits EFFECTIVE actuator commands — re-emits on renewals (duration APIs stay
re-armed), self-silences at the v2 lease, a UNIFORM 1 s legacy-host staleness replacing the
per-platform zoo (Apple 1.6 s / Android 60 s / SDL 1.5 s / Deck 1 s), quirk-declared
actuator keepalives (Deck 40 ms + LSB dedupe-defeat jitter), and one stop per buzzing pad
on connection close. Per-pad mailbox semantics: a stalled embedder wakes to ONE current
command, and a stop can structurally never be the update an overflowing queue drops.

New API/ABI: NativeClient::{next_rumble_command,set_rumble_quirks} +
punktfunk_connection_next_rumble_cmd/_set_rumble_quirks (next_rumble/next_rumble2 stay for
un-migrated embedders; both consumers are fed). Migrations DELETE the platform forks:
pf-client-core loses RumbleState + the Deck keepalive loop + LEGACY_RUMBLE_CEILING_MS and
physically silences a slot at close; Android loses the 60 s legacy one-shot (backstop
repack, cancel-on-zero); Apple loses envelopeDeadline + sessionStaleSeconds + both tick
watchdogs (CoreHaptics realization untouched; mac xcframework rebuilt locally).

design/rumble-root-fix.md par. D. Engine 10/10 unit tests; core tests 176 Linux / 175
Windows + clippy -D warnings; swift build + RumbleTuningTests; Kotlin + android-native
compile green.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-17 14:07:32 +02:00
enricobuehlerandClaude Opus 4.8 ecfa71212d chore: consolidate all in-progress parallel-session WIP
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Wholesale commit of every uncommitted change across the tree, at the user's
explicit request — host refactor-campaign W1 (native.rs facade + native/ dir,
library/ + mgmt/ splits), Android, core. These streams were mid-flight and not
individually built/tested together; this supersedes the per-session HOLD
markers. Consolidating so everything lands on main in one pass.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-16 20:08:29 +02:00
enricobuehlerandClaude Fable 5 11045a0f70 chore: consolidate parallel-session WIP (HOLD — do not push)
Local snapshot of intermingled in-flight work, committed to unblock the encode
refactor (a clean ffmpeg_win.rs for the vbv-dedup follow-on). These hunks span
the same files and can't be cleanly split here; the commit bundles three
distinct workstreams that each belong in their own PR:

  - logging rework (~43 files: level re-tiering, structured fields, `?e`,
    hot-path flood latches)
  - conflicting-host detection (detect.rs + detect/{linux,windows}.rs + wiring
    in main.rs/mgmt.rs/Cargo.toml/docs/packaging)
  - standby-sink DWM-stall attribution (windows/display_events.rs + capture/
    vdisplay wiring)

NOT verified as a combination. NOT to be pushed until the refactor is done and
these are re-verified and reorganized into their proper per-workstream PRs.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-16 12:42:53 +02:00
enricobuehlerandClaude Opus 4.8 56f9c8c4b4 feat(core,android): Automatic bitrate caps at the client decode limit, not the link ceiling
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The Automatic bitrate controller only reacted to network signals (loss, capture→received
OWD, FEC-unrecoverable frames, jump-to-live flush), so on a fast LAN feeding a slower
mobile HW decoder it slow-started straight to the link-probe ceiling and parked there —
backlogging frames inside the decoder, where those signals never register, and choking it.
Reported on a Snapdragon 8 Gen 1: Automatic pinned ~500 Mbps with unusable latency.

Feed the client's decode-stage latency (received→decoded) into the controller as a
first-class signal, symmetric with the existing OWD one: a rise over its rolling-min
baseline ends the slow-start climb and, sustained over two windows, backs the rate ×0.7
down to the real decode limit — so Automatic settles where the decoder keeps up.

- core/abr: on_window gains decode_mean_us; a decode_means rolling-min baseline +
  DECODE_RISE_US (15 ms) fold a decode rise into the bad-window logic.
- core/client: per-frame report_decode_us accumulator, drained to a window mean by the
  data-plane pump; wants_decode_latency() gate (Automatic, non-PyroWave) lets embedders
  skip the measurement where it's ignored. Re-target log prints the driving signals.
- android/decode: report the decode stage on both the sync and async decode paths,
  HUD-independent, measured from the AU leaving next_frame (so codec-input backpressure
  is included) and excluding the vsync present wait.

Apple/Windows report_decode_us calls to follow.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-15 17:28:11 +02:00
enricobuehlerandClaude Fable 5 2621b6e6b1 feat(core,host,android): Steam Controller 2 as-is passthrough to Linux hosts
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The 2026 Steam Controller (Valve "Ibex" / SDL "Triton") captured on an
Android client is passed through AS-IS: the host presents a virtual pad
with the real wired identity (28DE:1302) and mirrors the physical pad's
raw HID reports, so Steam on the host drives it over hidraw exactly like
the real thing — trackpads, gyro, paddles, and its rumble/settings writes
flow back onto the physical controller. Protocol ground truth: SDL's
Valve-maintained SDL_hidapi_steam_triton.c + steam/controller_structs.h.

Core:
- GamepadPref::SteamController2 (wire byte 9; names steamcontroller2/
  sc2/ibex) + PUNKTFUNK_GAMEPAD_STEAMCONTROLLER2 in the C ABI.
- Raw HID planes: RichInput::HidReport (0xCC/0x04, client→host input
  reports verbatim, Copy fixed-64 body) and HidOutput::HidRaw (0xCD/0x05,
  host→client feature/output writes for replay). Best-effort is sound by
  the device protocol's own design (rumble re-sent every ~40 ms, settings
  every ~3 s — losses self-heal); HidRaw bypasses hidout dedup for
  exactly that reason.

Host (Linux):
- triton_proto.rs + steam_controller2.rs: Triton2Manager UHID backend —
  no kernel driver binds the PID (hidraw only; Steam Input is the
  consumer), raw mirroring with a typed-fallback 0x42 synthesizer until
  the first raw report, SET_REPORT ack + raw forward, canned GET_REPORT
  serial reply, rumble also parsed onto the universal 0xCA plane (phone
  mirror). Rides the uhid + 28DE-conflict degrades; UHID promotion by
  Steam is flagged in the creation log (usbip transport is the known
  follow-up if Steam ignores Interface:-1 devices for Triton too).

Android:
- Sc2UsbLink (wired/Puck: vendor-interface claim detaches the OS driver,
  interrupt read loop, lizard-off on the watchdog cadence, raw replay via
  interrupt-OUT / SET_REPORT with hidapi report-id framing) and Sc2BleLink
  (Valve vendor GATT service, notify subscribe machine, 0x45 re-framing,
  HIGH connection priority).
- Sc2Capture orchestrator: raw plane + typed mirror (exit chord + host
  degrade paths keep working) on a GamepadRouter external slot; raw
  return path via GamepadFeedback.onHidRaw.
- nativeSendPadHidReport JNI (direct ByteBuffer, no per-report copy),
  hidout raw decode, usb-host/BLUETOOTH_CONNECT manifest bits, opt-out
  settings toggle, StreamScreen engagement incl. the USB permission flow.

Verified: core 149 + host 312 tests green on Linux (.21), on-box uhid
smoke creates/mirrors/tears down the virtual 28DE:1302, C ABI harness
round-trips, Android compileDebugKotlin green. On-glass with the real
controller owed.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-15 11:22:16 +02:00
enricobuehlerandClaude Fable 5 1fc9ef0050 feat(core,host,clients): typed pairing rejections — every client says WHY, not "not accepted"
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A host's pairing-gate rejections (not armed / bound to another device /
rate-limited / identity required / denied / approval timeout / superseded /
wire-version mismatch) used to drop the connection with a bare code-0 close,
and every client collapsed that — plus plain unreachability — into one
"wrong PIN / not accepted" message. A dead network path, a disarmed host,
and an operator denial were indistinguishable, which is exactly the
misdiagnosis behind the recent Android pairing support thread.

- core: new ungated `reject` module — shared close-code block 0x60–0x67
  (+ 0x42 busy promoted from the host), `RejectReason`, and
  `PunktfunkError::Rejected`; `pair()`/`connect()` decode the host's
  ApplicationClosed code into `Rejected` instead of a generic Io error.
  C ABI v7: status block −20…−28 and `punktfunk_connect_ex8` (`status_out`
  reports the failure cause; NULL-return alone can't). Wire unchanged —
  old peers see exactly the old bare close.
- host: every gate rejection `conn.close()`s with its typed code (and the
  human reason as close bytes) before erroring out of the session task.
- pf-client-core: shared `pair_error_message`/`connect_reject_message`
  wording consumed by the Windows + Linux + console-UI + CLI surfaces; a
  connect failure now renders the host's stated reason.
- android: `nativeTakeLastError()` JNI token + `ConnectErrors.kt` — a
  network timeout is no longer reported as "wrong PIN, or the host isn't
  armed", and a typed rejection skips the wake-and-wait fallback (the host
  is demonstrably awake).
- apple: `HostRejection` + `.rejected`; the pair sheet and session alerts
  show the stated reason; connect moves to `ex8`.

Completes the cross-client half of the hunks that rode along in 12148243
(client.rs / trust.rs / punktfunk1.rs) — main did not build without this.

Validated: workspace clippy -D warnings + full test suite green on .21
(EXIT=0, 309 host / 148 core suites); macOS core 147+c_abi green; swift
build green; Android Kotlin + native crate green.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-15 09:58:43 +02:00
enricobuehlerandClaude Opus 4.8 cdb43f00fe style: rustfmt the freeze-until-reanchor client wiring
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cargo fmt --all --check flagged the reanchor gate wiring (decode.rs / session.rs /
abi.rs / reanchor.rs): wrapped signatures + comparisons, and two multi-line comments
that followed a trailing-comment line were restructured to their own lines so
rustfmt keeps them at normal indentation instead of deep-aligning them.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-13 07:36:43 +02:00
enricobuehlerandClaude Opus 4.8 8a18e130a2 feat(client): freeze-until-reanchor loss recovery on Android + Apple via shared core gate
After unrecoverable loss the host keeps sending delta frames that reference a
picture the client never received; hardware decoders conceal these as gray/
garbage with a success status. Linux already withheld them and held the last
good frame until a proven clean re-anchor — this brings that behavior to the
Android and Apple clients.

Extract the Linux pump's freeze state machine into a shared `ReanchorGate` in
punktfunk-core (reanchor.rs, 18 tests) exposed over the C ABI (ABI v6, additive —
no wire change) for the Swift clients. Migrate the Linux/Deck pump
(pf-client-core) onto it as the parity proof (no-op refactor). Then wire:

- Android (decode.rs, both sync + async loops): arm on the frame-index gap, a
  pts-keyed flag map carries the wire flags to the output-buffer release, fold
  the gate per drained output, gate.poll replaces the dropped-climb block.
- Apple Stage2Pipeline (default): arm on a gap (new noteFrameIndexGap), withhold
  at the ring-submit seam (CAMetalLayer holds its last drawable), poll
  framesDropped, fold VT decode errors through the no-output streak.
- Apple StreamPump (stage-1): fold at enqueue, withhold via
  kCMSampleAttachmentKey_DoNotDisplay so the layer keeps decoding (reference
  chain intact) but holds the last displayed frame.
- Apple VideoDecoder: thread the AU's wire flags to the async decode callback via
  a retained FrameContext refcon (replaces the receivedNs bit-pattern scalar).

Lifts only on a proven re-anchor (IDR / RFI anchor / 2nd recovery mark) with a
500 ms backstop so a lost re-anchor can never freeze forever. Apple: swift build
clean, 123/123 tests pass (incl. VideoToolboxRoundTripTests). On-glass
loss-injection validation still owed.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-13 01:22:09 +02:00
enricobuehlerandClaude Opus 4.8 0ad4e6eff7 feat(android): multi-controller support
Roll the pf-client-core slot pattern to the Android client (Kotlin + JNI):

- New kit/GamepadRouter.kt: the Android analogue of the client-core Slot
  model — a deviceId→Slot map assigning each InputDevice a stable lowest-free
  wire pad index held for its lifetime, GamepadArrival(pref) before a pad's
  first input, GamepadRemove on onInputDeviceRemoved, per-slot AxisMapper +
  held-bitmask so two pads never clobber each other. The isForwardable gate
  (excludes DualSense/DS4 all-zero sensor sibling nodes) is centralized in
  slotFor so no entry point can open a phantom slot.
- native/src/session/input.rs: JNI shims take a pad arg -> flags=pad
  (nativeSendGamepadButton/Axis, plus nativeSendGamepadArrival/Remove).
- native/src/feedback.rs: pad carried in rumble bits 49..52 + a leading
  hidout pad byte; GamepadFeedback.kt routes rumble/lightbar/LED back to the
  originating device by pad via deviceForPad.
- MainActivity.kt routes key/motion events by device; ControllersScreen.kt
  badges every forwarded pad (was hardcoded i==0), reading getControllerNumber.

A lone controller lands on wire index 0, so its per-transition datagrams stay
byte-identical to the old single-pad path. gradle :app:assembleDebug green
(Rust cross-compiled via cargo-ndk); JNI signatures hand-verified 1:1.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-12 21:53:07 +02:00
enricobuehlerandClaude Opus 4.8 7cea893db5 feat(recovery): wire LTR-RFI loss recovery into every client
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Centralize the client-side loss-range detector in punktfunk-core so every
embedder shares one implementation instead of re-deriving the wrapping
frame-index arithmetic:

- NativeClient::note_frame_index(frame_index) folds each received AU (in
  receive order) through RfiRecovery::observe, firing a throttled RFI request
  for the exact lost span [first_missing, frame_index-1] on a forward gap. A
  host that can RFI (AMD LTR / NVENC) re-references a known-good frame instead
  of paying a 20-40x IDR spike; the frames_dropped-driven keyframe path stays
  the backstop for when the recovery frame itself is lost.
- Export request_rfi + note_frame_index over the C ABI (Apple client).
- Call it from the Android (hw+sw pumps), Apple (StreamPump + Stage2Pipeline
  via PunktfunkConnection.noteFrameIndex), and Windows in-process pumps.
  Linux/Deck inherit it through pf-client-core's session pump.
- Split the decision into a pure RfiRecovery::observe(frame_index, now) and add
  8 unit tests: arming, contiguous runs, exact lost-range, single-frame drop,
  the 100ms throttle (burst-suppress then re-open), reorder stragglers, and
  u32 wraparound (contiguous + gap-range).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-11 19:11:01 +02:00
enricobuehlerandClaude Fable 5 73c911cae4 feat(rumble): host-authoritative self-terminating envelopes (0xCA v2)
Rumble was level-triggered, unbounded state on a lossy channel: a non-zero
level meant "buzz until further notice", healed only by the host re-sending
state every 500 ms, and every client guessed when the host had died with its own
magic timeout (SDL 1.5 s, Apple 1.6 s, Android up to 60 s). A lost stop, a
reordered start, or a dead host could drone the motor for seconds.

Make "stuck rumble" inexpressible on the wire. The 0xCA datagram grows a
length-tolerant tail — [u8 seq][u16 ttl_ms] — so it self-terminates: the host
authorizes a level for at most ttl_ms and renews it (~120 ms) while it holds,
letting an abandoned one lapse client-side. seq is a per-pad wrapping reorder
gate (reusing GamepadSnapshot::seq_newer) so a reordered stale start can't
re-light a stopped motor. Decoders read the first 7 bytes as a plain level and
ignore the tail, so no wire-version bump: an old client renders a new host's
levels, and a new client falls back to its prior staleness heuristic against an
old host (ttl = None). All four generation pairings render correctly.

- core: encode_rumble_datagram_v2 / decode_rumble_envelope (datagram.rs); the
  client demux applies the seq gate then forwards (pad, low, high, Option<ttl>);
  next_rumble is unchanged (drops ttl), next_rumble_ttl keeps it; ABI adds
  punktfunk_connection_next_rumble2 + PUNKTFUNK_RUMBLE_NO_TTL, ABI_VERSION 4->5
  (WIRE_VERSION unchanged — the tail is backward-compatible).
- host (punktfunk1.rs): the flat 500 ms refresh becomes a renewal loop that bumps
  seq + stamps a fresh TTL on active pads and drains a short post-stop zero burst,
  then goes quiet. Hatches: PUNKTFUNK_RUMBLE_ENVELOPE=0 (legacy v1 + flat refresh,
  a bisect switch), PUNKTFUNK_RUMBLE_TTL_MS (clamped [150, 5000]).
- renderers honor the TTL as their playback duration/deadline and keep their old
  heuristic only for a legacy (ttl=None) update: pf-client-core (the Deck haptic
  keep-alive is now deadline-bounded so it can't sustain a host-stopped rumble),
  clients/windows (SDL duration), android (JNI packs the lease out-of-band in bit
  48 so any u16 ttl is unambiguous; Kotlin createOneShot(ttl)), apple
  (RumbleRenderer.envelopeDeadline + nextRumble2; sessionStaleSeconds demoted to
  the legacy fallback).
- tests: codec round-trip + tail tolerance + seq-gate reorder (Rust); the probe
  asserts the v2 tail arrived under PUNKTFUNK_TEST_FEEDBACK; the Apple loopback
  asserts ttlMs round-trips end to end; RumbleTuning lease-decision cases.

The host-side idle-timeout from the previous commit is defense in depth on the
game side; this is the guarantee on the client side. Design:
punktfunk-planning/design/rumble-envelope-plan.md.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-11 03:08:27 +02:00
enricobuehlerandClaude Fable 5 35d97ae6ac feat(windows): parallel virtual displays — proto v3 ring binding, manager slot map, group topology (W0–W3)
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design/windows-parallel-virtual-displays.md (display-management Stage 7 / §6.6): N
simultaneously-live pf-vdisplay monitors, one sealed ring each, every idd-push-security
invariant preserved per-ring.

- proto v3: SharedHeader._pad → target_id — the ring NAMES its monitor, host-stamped
  before the magic; the driver publisher refuses a cross-bound ring via the shared,
  unit-tested frame::check_attach (new DRV_STATUS_BIND_FAIL — the gamepad pad_index
  validation applied to frames, invariant #10); the host's wait_for_attach surfaces the
  refusal loudly and self-checks its own stamp.
- manager: the one-monitor MgrState becomes a slot map keyed by the client's identity
  slot (0 = anonymous/GameStream); per-slot reconnect + dead-WUDFHost preempts,
  slot-scoped begin_idd_setup (a different identity is an admission question, never a
  preempt), ONE device-level watchdog pinger, per-slot /display/state + /display/release.
- group topology: isolate_displays_ccd takes the managed target SET (a sibling slot is
  never deactivated); SavedConfig + the DDC/PnP axes move to the group record (first-in
  captures, last-out restores); desktop layout via CCD source origins from the pure
  layout::arrange (auto-row default, manual pins win), re-applied on create + reconfigure.
- admission: the Windows separate→reject override now sits behind the
  PUNKTFUNK_WIN_SEPARATE=1 validation hatch (the wedge it guarded is structurally gone —
  a second identity gets its own monitor + ring; default flips in W5 after soak);
  max_displays and NVENC session-unit budgets decline an unaffordable display AT
  admission; kick_dwm_compose is process-globally throttled and per-display — cursor
  jump + 35 ms dwell (a sub-tick jump composes nothing; DWM reads dirties from current
  state at the next vsync tick).

On-glass on the RTX box: V1/V2/V4/V5/V6/V9 green — two paired clients on two monitors
streaming ~60 fps each with zero mismatches and zero bind failures, churn-hammer clean
(no 0x80070490), per-ring mode-change recreate leaves the sibling untouched, typed
budget rejection, fault-injected cross-bind refused loudly with the sibling undisturbed.
V7: WUDFHost-kill shared fate is clean; in-process device recovery is a known follow-up
(the retired-never-closed control handles block the adapter cycle — reset-pf-vdisplay.ps1
recovers). DWM composes two IDD monitors concurrently at 60 fps — the plan's
load-bearing unknown, answered yes.

Also carries the client-HDR EDID forwarding that shared this working tree
(Hello::display_hdr → AddRequest luminance tail → the monitor's CTA-861.3 HDR block,
PUNKTFUNK_CLIENT_PEAK_NITS hatch) and the Deck client fixes (40 ms rumble keep-alive
with 1-LSB jitter, HDR self-diagnosing presenter warn, flatpak HDR env).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-11 01:06:44 +02:00
enricobuehlerandClaude Fable 5 baa04d2d24 style: cargo fmt over the networking-audit changes
rustfmt pass over the files the deferred-plan items touched (pinned
toolchain 1.96.0); no semantic change. cargo fmt --all --check now clean.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-10 16:10:20 +02:00
enricobuehlerandClaude Fable 5 ddb93c533c fix(core,android): networking-audit small follow-ups — bounds, oversized AUs, probe flag
Networking-audit deferred plan §6:

- 6.1 client reassembler ceiling derived from the negotiated rate:
  Welcome::session_config (client role) now sets max_frame_bytes to
  clamp(4 × bitrate_kbps×125 / refresh_hz, 8 MiB, 64 MiB) instead of the
  blanket 64 MiB p1_defaults bound — the hostile-header memory ceiling was
  ~10× larger than any real access unit. Local only (the host never
  reassembles video; the wire is self-describing); a bitrate-0 (older)
  host keeps the old bound. Unit-tested floor/derived/host/old-host cases.
- 6.2 ProbeState.active is cleared when the host's ProbeResult lands, so
  the pump stops mirroring receive counters once the burst is over.
- 6.3 Android: an AU larger than the codec input buffer is DROPPED with a
  recovery-keyframe request and a counter, on both the sync (feed) and
  async (feed_ready) paths — a truncated AU is corrupt input the decoder
  chews on silently, poisoning the reference chain until the next IDR. The
  async path recycles the never-queued input slot; the sync path returns
  the dequeued slot with zero valid bytes.
- 6.4 bounded uplink channels: mic_tx at 64 (~320 ms of 5 ms frames;
  overflow sheds the fresh frame with a debug log — a tokio mpsc can't
  shed from the head, and past 320 ms of backlog the mic is broken either
  way; the bound is about memory) and ctrl_tx at 32 (sparse requests; a
  full queue means a wedged control task, reported as Closed). input_tx
  stays unbounded per the plan: keyboard/mouse events must never silently
  drop, and gamepad state is snapshot-healed.
- 6.5 (wire version byte says P1 while streaming Gf16): record-only,
  resolves with the P2 packet revision.

include/punktfunk_core.h: cbindgen re-emitted in the new module order
after the quic/ split (item 3) — no semantic change beyond the reorder.

cargo ndk check (arm64-v8a), workspace clippy, core+host tests green.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-10 16:07:42 +02:00
enricobuehlerandClaude Fable 5 d4467a44e2 feat(core): mid-stream clock re-sync — live offset survives wall-clock steps and drift
Networking-audit deferred plan §2. The host↔client offset was measured once
at connect; an NTP step or slow drift silently corrupted the clock-based
jump-to-live signal, the ABR one-way-delay signal, and every latency stat —
4a3b1ae2's disarm backstop stopped the IDR storm but lost the detector for
the session. Now the client re-estimates mid-stream and recovers it.

- quic: ClockResync — the connect-time 8-round probe/echo estimate as a
  select!-driven state machine (rounds matched by echoed t1, stale batches
  ignored), plus accept_resync (batch min-RTT ≤ max(2 ms, 1.5× connect RTT)
  so a congested window can never bias the offset). No wire change: the
  host has always answered ClockProbe at any time on the control stream.
- client: the offset lives in an Arc<AtomicI64> seeded at connect; the
  control task re-probes every 60 s and immediately after the pump's FIRST
  no-op clock flush (the "clock stepped under me" signal, sent on the next
  report tick). On apply: store, reset stale_frames/noop_clock_flushes,
  re-arm the clock detector if a step had disarmed it. The disarm heuristic
  stays as the final backstop. Public NativeClient::clock_offset_ns keeps
  the connect-time value (ABI untouched); new clock_offset_now_ns() /
  clock_offset_shared() expose the live value.
- consumers migrated to the live offset: pf-client-core session stats, the
  pf-presenter e2e stamp, Windows session/render, Android feeder/drain/
  DisplayTracker (the tracker holds the shared handle, not the client, so
  the leaked render-callback refcount can't pin the session).
- probe: --clock-resync runs a second full handshake mid-connection and
  asserts a sane, consistent estimate. Live against the local canary host:
  offsets 8646/2139 ns, disagreement 6 µs, 8/8 rounds — OK.

Unit tests cover the round collection, stale-echo rejection, batch restart,
min-RTT selection, and the acceptance guard. cargo ndk check green.
Remaining manual validation: `sudo date -s "+2 sec"` on a live streaming
client → expect one no-op flush, a re-sync, re-armed detector, no IDR pulse.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-10 15:45:12 +02:00
enricobuehlerandClaude Fable 5 6fbab53d56 feat(audio): libopus packet-loss concealment on the client audio plane
The 0xC9 audio datagrams ride the lossy plane with no FEC, and no client ever
consulted the per-packet sequence: a lost 5 ms Opus packet played out as a hard
gap in the ring — an audible click/pop on every drop, i.e. constantly on the
Wi-Fi links where video loss is already being FEC-absorbed.

Now a shared `AudioGapTracker` (punktfunk-core::audio — pure data, wrap-safe,
unit-tested incl. u32 wraparound / reorder / duplicate cases) tells the decoder
how many packets went missing immediately before each received one, and both
native clients (pf-client-core PipeWire path, Android AAudio path) synthesize
that many frames of libopus packet-loss concealment first: `decode` with empty
input (the opus crate maps it to a NULL data pointer = PLC), sized by the last
real frame's sample count. Interpolated fade instead of a click.

Bounds: a gap is capped at 10 packets (50 ms) — libopus PLC fades to silence
after a few frames anyway, so past the cap the rings' existing underrun/re-prime
path takes over. Reorders and duplicates conceal nothing (the plane has no
reorder buffer; playing a late packet where it lands is the existing behaviour).
In-band Opus FEC (LBRR) is deliberately NOT used: the host sends 5 ms frames
and LBRR needs ≥10 ms frames to carry anything.

The cap is a crate-private const so cbindgen keeps it out of the C ABI header.
Host cargo tests + clippy green; android crate verified via cargo ndk check.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-10 14:55:37 +02:00
enricobuehlerandClaude Fable 5 f5e5297a2a style: cargo fmt — settle comment/assert layout the last two fixes left unformatted
`cargo fmt --all --check` on main flags decode.rs (android dlsym fix),
probe/main.rs (0600 key fix), and session.rs (anti-replay tests). The probe
one is restructured rather than machine-formatted: rustfmt wanted the key-
permissions comment gutter-aligned to the trailing `// the certificate is
public` comment, so fold both into one block comment above the write instead.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-10 10:20:40 +02:00
enricobuehlerandClaude Fable 5 8fa12167af fix(android): client loads again on Android < 13 — dlsym the API-33 render callback
ci / rust (push) Failing after 41s
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0.9.0's HUD display stage hard-linked AMediaCodec_setOnFrameRenderedCallback via
ndk-sys believing it API 26; the symbol is API 33 ("Available since Android T").
A cdylib links fine with the dangling import, so it only exploded at
System.loadLibrary on every pre-13 device: UnsatisfiedLinkError, then every
NativeBridge touch throws NoClassDefFoundError — surfacing as "Identity
unavailable: io.unom.punktfunk.kit.NativeBridge", a dead pair button, and no
discovery (reported on a Y700 / Android 12; 13+ devices unaffected).

- decode::install_render_callback now dlsym-resolves the entry point from
  libmediandk.so, mirroring try_set_frame_rate; on API < 33 the HUD simply has
  no display stage (the pre-0.9.0 behaviour) and the .so loads.
- New scripts/ci/check-android-jni-imports.sh, wired as checkJniImports* gradle
  tasks the APK build depends on: fails the build if libpunktfunk_android.so
  imports any symbol absent from the NDK's API-28 stubs — `--platform 28` never
  enforced this (cdylib links permit undefined symbols), despite the old
  comment's claim. Verified: 3 ABIs clean at the 28 floor, and the check flags
  the known API-28 symbols when pointed at a 27 floor.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-10 10:06:31 +02:00