Commit Graph
33 Commits
Author SHA1 Message Date
enricobuehlerandClaude Fable 5 652abeb397 fix(host/audio): an unsatisfiable wiring plan waits for an endpoint change instead of hammering
Field case 2026-08: the display isolate invalidated the only real render
endpoint; the mic held the Steam Streaming Microphone, the Speakers were
blacklisted, and the capture loop re-ran the full wiring pass — three
IPolicyConfig SetDefaultEndpoint writes included — every 2 s for 8+
minutes, retrying a verdict that could never change.

- wiring_plan: a plan with no loopback is a typed structural verdict
  (Wiring::loopback_unsatisfiable + an endpoint-set fingerprint); the
  dead leftover() tier (byte-identical to real_hw()) becomes a real last
  resort that accepts ONLY the Steam Streaming Speakers, flagged
  loopback_last_resort — a known-silent-loopback QUALITY risk, never the
  cable/VoiceMeeter echo CORRECTNESS risks. excluded_from_loopback stays
  untouched (judge_default's mid-stream snap-back semantics).
- wasapi_cap: an unsatisfiable plan errors ONCE per topology with the
  render inventory, per-endpoint rejection reasons and only the remedies
  not already taken, then parks on a cheap enumerate-and-hash poll and
  re-plans the instant the set changes; transient failures get a real
  capped exponential backoff (2 s → 60 s, reset on success or set
  change); a last-resort capture re-plans on any set change and promotes
  the 30 s zero-packet breadcrumb to warn.
- audio_control: the recording default is asserted only when the plan
  changed or the default drifted — set_default_endpoint fires all three
  SetDefaultEndpoint roles unconditionally, so the 2 s loop silently
  stomped any operator recording-device change; the "attach one, or let
  the host install the Steam Streaming pair" warn (already satisfied in
  the field case) is replaced by the same diagnosis.

Verified: 19/19 wiring_plan tests (native rustc --test and the Linux CI
image via docker); both Windows files type-check and clippy clean
against wasapi 0.23.0 / windows 0.62.2 for x86_64-pc-windows-msvc via an
xcheck-style stub harness (the in-tree target check dies in
openh264-sys2's build script on macOS, as scripts/xcheck.sh documents).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-08-02 09:53:36 +02:00
enricobuehlerandClaude Fable 5 f3a39df7b3 test(host/audio): prove a reopen recovered with a live uplink, not one frame
`reopens_after_push_death` failed about one run in nine, and widening its
timeout did not help — the earlier commit blamed the backoff and was wrong.

The pump drops whatever queued while it was down: audio from before the
device came back is stale, so a fresh instance drains the channel right
after opening. The harness counts `opens` from the START of the open, so
the moment the test sees the counter move, the pump has not reached that
drain yet. The single frame it then sent landed inside the drain window and
was discarded exactly as designed, leaving the test waiting for audio that
was never going to arrive.

So the test now keeps feeding, which is what a real uplink does and what
the drain assumes. The sequence advances each time or the de-jitter reads
the repeats as duplicates and drops them for a second, correct reason.

Production behaviour is unchanged: this was the test asserting something
the pump never promised.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-08-01 00:41:07 +02:00
enricobuehlerandClaude Fable 5 10a1863cc7 test(host/audio): give the reopen tests longer than the backoff they wait for
`wait_until` allowed 200 × 10 ms — exactly the 2 s `backoff_start` the reopen
path spends before it can succeed. On a warm, idle machine it wins the race;
on a cold binary or a loaded box it does not, and `reopens_after_push_death`
failed 3 of ~5 cold runs while gating this branch. CI is always cold.

Six seconds costs nothing when the test passes and only delays a genuine
failure, so the budget now clears the backoff with room to spare.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-08-01 00:15:54 +02:00
enricobuehlerandClaude Fable 5 79856d2c50 fix(host/audio): a VoiceMeeter box can no longer loop the mic into the stream
wiring_plan could hand the mic Voicemeeter Input and the loopback
Voicemeeter Aux Input — two strips of the same internal mixer, i.e. a
digital feedback loop with no acoustic path to break it, because
leftover() never asked virtualish() and the exclusion list only knew
"cable" and the Steam Speakers. Now every VoiceMeeter or generically
"virtual" render is excluded from loopback, and the last-resort tier
refuses anything virtual: a box with only mixer endpoints gets
loopback=None, honest like the cable-only case.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-31 22:11:17 +02:00
enricobuehlerandClaude Fable 5 efac33fd33 feat(host/audio): the virtual mic buffers for the client it has, not the worst one ever
The mic pump grows a real de-jitter (audio/mic_jitter.rs): a two-frame
reorder window in front of the decoder, libopus concealment on sequence
gaps (up to 5 frames — a lost datagram no longer drains the ring into a
silence + re-prime crackle), and an adaptive target depth measured from
inter-arrival jitter, clamped to 10–60 ms. Both backend rings now prime
at one consumer quantum + that target: the old bursty Mac client still
measures ~42 ms and lands where the fixed 48 ms prime protected it, a
modern 10 ms-cadence client settles at ~25–35 ms, and a 2048-frame
recorder on Linux stops buying 128 ms of latency from the 3-quanta
clamp. Depth stuck above target sheds near-silent frames a few ms per
100 ms — never speech, never a hard clear.

PUNKTFUNK_MIC_LEGACY_BUFFER=1 (documented) is the one-release escape
hatch back to the fixed constants, and a "mic uplink health" line every
30 s (depth/target, cadence, gaps, conceals, reorders, drops, re-primes)
finally says which side of the link a bad mic lives on.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-31 22:11:08 +02:00
enricobuehlerandClaude Fable 5 6286f91f89 feat(host/audio): the mic uplink keeps its sequence, and a backlog heals itself
The 0xCB datagrams always carried a seq + pts, and the ingest threw both
away one line after decoding them — the pump saw an anonymous byte pile.
Frames now travel as MicFrame {seq, pts_ns, opus} so the de-jitter that
follows can reorder, conceal and measure.

The shared queue also stops being a latency reservoir: cap 64 → 12, and
a pump that wakes to a backlog deeper than 6 frames jumps to the newest
4 instead of replaying the pile — before this, a scheduling stall could
park up to 1.28 s of standing mic delay that only a >600 ms silence gap
ever flushed.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-31 21:50:29 +02:00
enricobuehler aa070f2d55 feat(ffi): hand-mirrored C structs are now layout-checked at compile time
The sharpest memory-safety risk left in this codebase is not an `unsafe` block — it is a
hand-written `#[repr(C)]` mirror of an external C struct. Get a field offset wrong and nothing fails
to compile and nothing reliably crashes: the library reads a pointer, a length or a pitch out of the
wrong bytes. Eleven such structs across five files had NO check at all.

Guarded here, each next to the struct it protects:

* `AVCUDADeviceContext`, and `AVD3D11VADeviceContext`/`AVD3D11VAFramesContext`. `ffmpeg-sys-next`
  binds none of them, so these mirrors are the only definitions — and we WRITE through them
  (`cuda_ctx`, `device`, `bind_flags`). ⚠ The D3D11VA pair is duplicated VERBATIM in two crates
  (pf-encode's `ffmpeg_win.rs`, pf-client-core's `video_d3d11.rs`) because neither can depend on the
  other; they must agree with libav and with each other, and now a drift in either is a build error.
* The six cuda.h structs. Three were already asserted — but only in `#[cfg(test)]`, so the check ran
  when someone ran the tests and never in a release build. They are `const` now. The other three,
  including `CUDA_MEMCPY2D` which is filled on EVERY zero-copy frame, had nothing.
* `MsghdrX`, Darwin's `msghdr_x`, which `libc` does not expose. Its layout is not reviewable by eye:
  the 32-bit fields force padding before each following pointer, so `msg_iov` sits at 16 and not 12.
  `sendmsg_x`/`recvmsg_x` take the pointer and length from it.
* `IPolicyConfigVtbl` — the sharpest of the set. It mirrors an UNDOCUMENTED COM interface, and
  `set_default_endpoint` is called by SLOT INDEX through a ten-entry `_reserved` gap that carries no
  names to anchor a review. A field added or resized above it does not break the build; it calls a
  different function pointer through a mismatched signature.

Every assertion is `const _: () = assert!(..)`, so it holds on every build including release and
cannot be skipped. The compiler verified the numbers — the sizes and offsets asserted here are the
ones the target actually produces, on each platform that compiles the struct.

Verified: Linux .21 fmt + both CI clippy steps rc=0 (CUDA + libav CUDA mirrors); Windows .47 full CI
clippy set rc=0 + pf-capture tests (D3D11VA pair, COM vtable); macOS `cargo check -p punktfunk-core`
(MsghdrX — the only platform that compiles it).
2026-07-29 08:48:42 +02:00
enricobuehler c262bf43df refactor(host): three more Windows unsafe fns that had no caller contract
ci / web (push) Successful in 1m3s
ci / docs-site (push) Successful in 1m16s
android / android (push) Successful in 12m8s
windows-drivers / probe-and-proto (push) Successful in 29s
ci / rust (push) Failing after 10m31s
ci / rust-arm64 (push) Failing after 11m1s
ci / bench (push) Successful in 5m40s
decky / build-publish (push) Successful in 22s
docker / build-push (--build-arg FEDORA_VERSION=44, ci, ci/fedora-rpm.Dockerfile, punktfunk-fedora44-rpm) (push) Successful in 10s
docker / build-push (., web/Dockerfile, punktfunk-web) (push) Successful in 8s
windows-drivers / driver-build (push) Successful in 1m44s
docker / build-push (ci, ci/fedora-rpm.Dockerfile, punktfunk-fedora-rpm) (push) Successful in 9s
docker / build-push (ci, ci/rust-ci-noble.Dockerfile, punktfunk-rust-ci-noble) (push) Successful in 9s
docker / build-push (ci, ci/rust-ci.Dockerfile, punktfunk-rust-ci) (push) Successful in 8s
docker / build-push (docs-site, docs-site/Dockerfile, punktfunk-docs) (push) Successful in 9s
arch / build-publish (push) Successful in 16m4s
windows-host / package (push) Failing after 5m12s
windows-host / winget-source (push) Skipped
deb / build-publish (push) Successful in 8m59s
windows-msix / package (arm64, C:\Users\Public\ffmpeg-arm64, --no-default-features, aarch64-pc-windows-msvc, C:\t-a64) (push) Successful in 2m12s
flatpak / build-publish (push) Successful in 7m0s
deb / build-publish-client-arm64 (push) Successful in 9m59s
apple / swift (push) Successful in 5m24s
windows-msix / package (x64, C:\Users\Public\ffmpeg, , x86_64-pc-windows-msvc, C:\t) (push) Successful in 2m28s
windows / build (aarch64-pc-windows-msvc) (push) Failing after 1m9s
windows / build (x86_64-pc-windows-msvc) (push) Failing after 1m32s
deb / build-publish-host (push) Successful in 14m53s
rpm / build-publish (43, bazzite, punktfunk-fedora-rpm) (push) Successful in 18m45s
docker / build-push-arm64cross (push) Successful in 10s
docker / deploy-docs (push) Successful in 25s
rpm / build-publish (44, fedora-44, punktfunk-fedora44-rpm) (push) Successful in 30m14s
release / apple (push) Successful in 39m36s
apple / screenshots (push) Successful in 23m3s
Continues the crate-by-crate `unsafe_op_in_unsafe_fn` work. Same finding as
pf-frame: the useful move is often deleting the `unsafe fn` marker, not decorating
the body.

`install_steam_audio_pair` (no arguments) and `try_install_steam_audio(&str)` are now
safe fns. The call sites had already worked this out — both carried a SAFETY comment
opening "`install_steam_audio_pair` is `unsafe` only because it `LoadLibraryExW`s
`newdev.dll`", i.e. the obligation was never the caller's. Making them safe deletes
14 lines of that prose from two call sites and moves the real reasoning next to the
`LoadLibraryExW`/`transmute`/call chain it actually describes. wasapi_mic.rs: 8 -> 0.

`make_job` (no arguments, and it wraps its handle in an `OwnedHandle` before the
first fallible step) and `open_log_handle(&Path)` are safe fns too. The latter
returns a raw `HANDLE`, but that is an ownership obligation, not a safety one —
nothing a caller does with it can cause UB, and it is inherited by the child and
closed there. service.rs: 19 -> 14.

`spawn_host` keeps `unsafe fn`: it takes a raw `HANDLE`, and an invalid one is UB.
That is a contract worth stating, so it keeps the marker.

Windows-only note: `LoadLibraryExW` here already passes
`LOAD_LIBRARY_SEARCH_SYSTEM32`, so the newdev.dll load cannot pick up a planted DLL
from the working directory — now recorded in the SAFETY note rather than left
implicit.

Verified on Windows .47: punktfunk-host clean at EXITCODE=0 — zero errors, zero
unused-unsafe. Crate's own files now 29 E0133 (interactive.rs 15, service.rs 14),
down from 42.
2026-07-28 21:31:42 +02:00
enricobuehlerandClaude Fable 5 940a260506 fix(host): retry the audio first-open instead of running the session silent
apple / swift (push) Successful in 1m19s
apple / screenshots (push) Successful in 5m23s
deb / build-publish (push) Successful in 10m36s
ci / web (push) Successful in 50s
ci / docs-site (push) Successful in 53s
decky / build-publish (push) Successful in 42s
ci / bench (push) Successful in 6m29s
docker / build-push (., web/Dockerfile, punktfunk-web) (push) Successful in 11s
docker / build-push (ci, ci/fedora-rpm.Dockerfile, punktfunk-fedora-rpm) (push) Successful in 11s
docker / build-push (ci, ci/rust-ci-noble.Dockerfile, punktfunk-rust-ci-noble) (push) Successful in 10s
docker / build-push (ci, ci/rust-ci.Dockerfile, punktfunk-rust-ci) (push) Successful in 9s
docker / build-push (docs-site, docs-site/Dockerfile, punktfunk-docs) (push) Successful in 10s
arch / build-publish (push) Successful in 14m43s
android / android (push) Successful in 17m23s
ci / rust (push) Successful in 19m26s
deb / build-publish-host (push) Successful in 9m37s
docker / build-push (--build-arg FEDORA_VERSION=44, ci, ci/fedora-rpm.Dockerfile, punktfunk-fedora44-rpm) (push) Successful in 9m27s
rpm / build-publish (43, bazzite, punktfunk-fedora-rpm) (push) Successful in 22m21s
rpm / build-publish (44, fedora-44, punktfunk-fedora44-rpm) (push) Successful in 23m16s
windows-host / package (push) Successful in 16m34s
docker / deploy-docs (push) Successful in 31s
Session start is peak endpoint churn on Windows — the virtual-display
attach and the wiring plan's own IPolicyConfig default flips race the
first WASAPI activate, which then fails transiently (IAudioClient
0x80070002, endpoint mid-re-registration) — and a first-open failure
killed audio for the WHOLE session: wasapi_cap's capture thread sent
the error through the ready handshake and exited, and the native
plane's audio thread returned instead of entering its reopen loop
(each layer's comment claimed the other retried; neither did).

Two-layer fix: the WASAPI capture thread gives the first open three
attempts a second apart before failing the handshake, and the native
audio thread treats a failed first open like a mid-session capture
death — it enters the existing reopen-with-backoff loop, so audio
starts a few seconds late instead of never. The GameStream plane gets
the WASAPI-level retry for free.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-19 19:37:03 +02:00
enricobuehlerandClaude Fable 5 4d89dcd3d7 fix(audio/windows): explicit-endpoint capture, client-only playback, self-healing watchdog
Root cause of the field report (Android client, Windows host: no audio until
the user manually cycled Sound-output devices, then audio on BOTH PC and
phone): the WASAPI loopback captured whatever the default render endpoint
was at open time — not the wiring plan's chosen endpoint — the plan's
IPolicyConfig default-set is warn-only and racy, and nothing reacted to
mid-stream default-device changes.

- Explicit-endpoint capture: the capture thread opens the plan's
  loopback_render by id, never "the default" (KEEP_DEFAULT preserves the old
  default-capturing behavior with the echo guard).
- Client-only playback default: wiring_plan::plan(..., host_audio) prefers a
  silent sink (Steam Streaming Microphone render side — loopback-validated,
  silent on host) over real hardware, so stream audio plays on the client
  only; PUNKTFUNK_HOST_AUDIO=1 restores real-hw-first (audible on the host).
  The capture side auto-installs the Steam pair once per process when no
  silent sink exists; open() handshake timeout 3s -> 30s to cover it, and a
  handshake timeout now stops the detached thread (it used to run for the
  process lifetime with the default still parked).
- Self-healing capture thread (wasapi_cap): outer capture_once loop
  (Assert|Follow) with a ~1s watchdog on the default render id. A user
  switch to a capturable endpoint is followed (their choice wins, audio on
  both); a switch to a dud (cable/SSS/mic target) re-asserts the plan;
  IPolicyConfig-denied converges to Follow instead of churning. Device
  errors reopen with 2s backoff; only the FIRST open failure is fatal.
  Zero-packets breadcrumb after 30s distinguishes broken-loopback from
  quiet-desktop.
- Park/restore of the default playback device (audio_control):
  wire_now(set_playback) parks the default on the loopback sink only for the
  capture's lifetime (the mic pump passes false — it runs while the host is
  idle); crash marker audio-default.prev + recover_orphaned_default() at
  first wire; restore is skipped if the operator changed the default
  themselves. A mic-default hygiene pass keeps VB-Cable installs audible and
  never records the mic target as the restore target.
- Session-end park_audio_capture(): Windows DROPS the capturer (thread join
  restores the default) instead of caching it; Linux keeps the parked
  PipeWire thread. Composes with the stream-sink idle() hook at all three
  park sites (idle is a no-op on Windows).

Verified: Linux (.21) clippy -D warnings + 176 punktfunk-host tests green
(incl. the new wiring-plan preference tests); Windows (.173) clippy with
nvenc,amf-qsv --all-targets -D warnings green at this exact tree.
On-glass winbox/Android validation still owed.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-17 17:05:02 +02:00
enricobuehlerandClaude Fable 5 97c5778a36 merge(audio): land feat/linux-stream-sink — Linux host-owned stream sink
Merges 44b71e74 (see its message for the full design: the "Punktfunk Stream
Speaker" Audio/Sink claimed as the session's default output — the crackle
root fix for hardware-sink churn — plus the core-error liveness fix and true
5.1/7.1 capture) across the W1–W8 refactor that landed since the branch
forked:

- punktfunk1.rs was split on main: the audio_thread idle()/drain() hunks are
  hand-ported into native/audio.rs (same three sites: reuse-drain comment,
  encoder-fail park, end-of-thread park).
- pwinit moved to pf-capture (W6.2): the branch's crate::pwinit calls in
  pw_thread and stream_sink.rs become pf_capture::pwinit.
- Kept main's log-tier demotions (stream-state + setup lines at debug)
  inside the restructured pw_thread.

Resolution verified on Linux (home-worker-5): clippy -D warnings clean +
173 punktfunk-host tests green at the 691c064a-based equivalent ba5973a2;
re-verified at this base before landing.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-17 16:35:02 +02:00
enricobuehlerandClaude Opus 4.8 94ca4041ca refactor(host/W6.2): extract the frame-capture backends into the pf-capture crate
capture/linux (PipeWire portal) + capture/windows (IDD direct-push: dxgi
mechanics, idd_push + submodules, synthetic_nv12) + pwinit move into
crates/pf-capture behind the Capturer trait + synthetic sources (plan §W6).
The crate speaks pf-frame (CapturedFrame/PixelFormat + the DXGI identity),
pf-zerocopy (CUDA import), and the pf-win-display leaves, and NEVER pf-encode —
the capture->encode edge is one-way. This completes the deliberate capture/encode
crate split (the invasive path the plan had merged into one pf-media): capture
and encode are now separate subsystem crates sharing only pf-frame.

Four seams keep the capturer off the orchestrator:
- VirtualOutput is EXPLODED into primitives (remote_fd/node_id/preferred_mode/
  keepalive) by the host facade, so pf-capture never depends on the vdisplay type;
- FrameChannelSender: the sealed-channel delivery is a Send+Sync closure the host
  facade builds from the pf-vdisplay control device + send_frame_channel IOCTL and
  hands in; ChannelBroker holds the closure instead of the control HANDLE (the
  whole-desktop handle-duplication security boundary is byte-for-byte unchanged);
- console_session_mismatch + desktop_bounds live in pf-win-display (leaf peers);
- pwinit moves here (audio caller -> pf_capture::pwinit).

The host keeps capture.rs as a thin BRIDGE: it re-exports the vocabulary + capturer
types (every crate::capture::* path is unchanged) and keeps open_portal_monitor /
capture_virtual_output, which resolve the ZeroCopyPolicy + FrameChannelSender and
call into pf-capture. verify_is_wudfhost + install_gpu_pref_hook are re-exported
(the gamepad-channel bootstrap + the main.rs subcommand consume them).

Co-developed: the resident-HID-mouse compose-kick hook (HID_COMPOSE_KICK + the
HID-first cursor kick + _display_wake) rides this commit into pf-capture; the host
mouse_windows registration side lands separately on top.

Verified: Linux clippy -D warnings (pf-capture + host nvenc,vulkan-encode,pyrowave
--all-targets) + host tests 299/299; Windows clippy -D warnings (pf-capture
--all-targets + host nvenc,amf-qsv --all-targets) Finished exit 0.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-17 11:28:56 +02:00
enricobuehlerandClaude Opus 4.8 405b005a0d refactor(host): extract audio/mic_pump.rs — the host-lifetime virtual-mic pump
Per plan §2.1: a self-contained stateful subsystem does not belong in the
audio trait facade. Move MicPump + its PumpTuning/PUMP_TUNING, the
drain_sleep/pump_thread loop, MIC_CHANNELS/MIC_QUEUE_CAP, and the six pump
unit tests out of audio.rs into audio/mic_pump.rs. audio.rs keeps the
AudioCapturer/VirtualMic traits, their open_* factories, and the sample
constants. Re-export via `pub use mic_pump::MicPump` so crate::audio::MicPump
stays byte-stable (only consumer: punktfunk1.rs). Pure code-move; verified
clippy 0/0 + 6/6 pump tests green on Linux (home-worker-5).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-16 15:21:36 +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 Fable 5 44b71e7460 feat(audio/linux): host-owned stream sink decouples capture from hardware-sink churn
The Linux desktop-audio capture stream now registers itself as an Audio/Sink
node ("Punktfunk Stream Speaker", default-on, PUNKTFUNK_STREAM_SINK=0 =
legacy escape hatch) and claims the configured default sink for the duration
of a session (saved and restored around it, refcounted across concurrent
sessions, crash-stale claims degrade to automatic election). Host apps play
directly into the capture stream, so the capture link no longer depends on
any hardware sink.

Root cause this fixes (live-diagnosed on a bazzite/LG-TV host): gamescope
modesets drop the NVIDIA HDMI audio endpoint, WirePlumber ping-pongs the
default sink HDMI<->auto_null ~8x/s, and the old monitor-follower relinked
its capture on every flip - Paused/renegotiate/Streaming storms (~1300 log
lines/min) heard as crackle on the client.

Also fixes a latent liveness bug in both modes: the capture thread had no
core-error listener, so a PipeWire daemon restart mid-session left a zombie
thread returning quiet-sink empty chunks forever (same class as the historic
virtual-mic death bug). Now the thread exits and sessions reopen with backoff.

Bonus: the sink advertises the session's true channel count, so games can
produce real 5.1/7.1 even when local hardware is stereo. New AudioCapturer::
idle() hook releases the routing claim when a capturer is parked between
sessions; drain() re-claims on reuse.

Verified: cargo clippy -D warnings + 295 tests green on Linux (.21).
On-glass validation on the bazzite host pending.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-14 09:34:36 +02:00
enricobuehlerandClaude Fable 5 547bc250b6 fix(host/audio): WASAPI virtual mic — port the priming jitter buffer (crackling fix)
Mac → Windows mic passthrough crackled heavily while the identical
stream was clean on the Linux host. Cause: clients push mic audio in
BURSTS on their own clock (the Mac input tap yields ~two 20 ms Opus
packets every ~42 ms) while the WASAPI render loop pulled a block every
~10 ms device period and greedily drained whatever was queued, padding
the rest with zeros — the queue sat near-empty and most periods
inserted mid-stream silence. The Linux backend has absorbed this since
day one with its priming jitter buffer; the WASAPI loop had none.

Port the same semantics: emit silence until ~48 ms is buffered (covers
the worst inter-burst gap), then play from the cushion (zero-filling
only a momentary shortfall), re-prime only after a genuine full drain
(client went quiet). Queue cap raised 80 → 120 ms for burst headroom;
steady-state added latency ≈ the 48 ms cushion.

Diagnosed live on .173: probe tone recording from CABLE Output proved
the endpoint wiring, then the burst-vs-period math explained the
crackle. Build-verified on Windows; on-glass listen pending.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-03 22:31:18 +00:00
enricobuehlerandClaude Fable 5 ea07ba09be fix(host/audio): mic pump — open handshake on Linux + rapid-death backoff
Found by a live boot-order test (host started before the user session's
PipeWire): PwMicSource::open returned Ok before the daemon connection was
attempted, so a PipeWire that wasn't running surfaced as an instantly-dead
instance instead of an open failure — and the pump churned
open→die→reopen at heartbeat rate (1 Hz "virtual mic ready" log spam)
instead of backing off.

- PwMicSource::open now has a bring-up handshake (mirrors the Windows
  backend): ready only after connect + stream connect succeed, so a
  down daemon is an open ERROR and the pump's backoff engages.
- The pump triages deaths: an instance that lived >= 5 s (a one-off
  daemon restart) reopens immediately with the backoff reset; one that
  died right after opening counts as a failed open and backs off
  (2 s → 60 s cap). New pump test rapid_death_backs_off.

Re-validated live: host started with PipeWire stopped → throttled
"unavailable" warns, zero churn; daemon started → mic node up on the
next retry; exactly one pump + one loop thread (no leak).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-03 20:58:06 +00:00
enricobuehlerandClaude Fable 5 f87869db02 fix(host/audio): rebuild mic passthrough — eager, self-healing virtual mic on both hosts
Mic passthrough silently died on real hosts. Root causes, all fixed:

- No liveness anywhere: a PipeWire restart (Linux) or any WASAPI device
  error (Windows) killed the backend worker; push() fed the dead queue
  for the rest of the host's life. VirtualMic now has a liveness
  contract (push -> bool, alive(), discard()) and the new shared
  audio::MicPump reopens with backoff, probing on an idle heartbeat so
  the mic heals BETWEEN sessions too. Validated live: systemctl restart
  pipewire -> node back in ~0.5 s, tone flows through the reopened
  backend.

- Lazy creation: the mic device didn't exist until the first 0xCB
  frame, but games bind their capture device at launch and never
  re-follow. The pump opens eagerly at host start (node exists with
  zero clients, elected default source).

- Windows headless dead-end: with VB-CABLE as the ONLY render endpoint
  (exactly what the installer ships), the anti-echo guard rejected the
  cable as the default render endpoint -> mic permanently dead. The new
  wiring_plan (pure, unit-tested on every platform) assigns the mic its
  endpoint FIRST (cable reserved for the mic), points the loopback at a
  DIFFERENT endpoint, and the capture side now yields (explicit
  endpoint or honest error) instead of the mic dying. Plan recomputed
  per (re)open — endpoints churn at boot/logon/driver installs.

- Stale bursts: buffered audio from a previous session played into a
  newly-attached recorder (observed live). Timestamped chunks + a
  consumer-gap check in the process callback age everything past 1 s.

The Linux node mechanism stays the stream-based Audio/Source with
RT_PROCESS + priority.session: the canonical null-audio-sink adapter
recipe was tested on this box (PipeWire 1.6.2) and never gets a clock
(QUANT 0 -> pure silence), and WirePlumber reroutes a feeder targeting
it to the default sink (echo). Decision documented in the module docs.

Live-validated on this box (synthetic host + probe --mic-test,
pw-record): eager node, both attach orderings, PipeWire-restart
self-heal, post-session silence. Windows side compile/CI + on-glass
validation pending.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-03 20:41:19 +00:00
enricobuehlerandClaude Opus 4.8 df21b54cd0 fix(host/audio): make the Linux virtual mic the default source (was silent)
The punktfunk/1 virtual microphone was created as a plain Audio/Source with
no session priority, which caused two failures — both diagnosed live against a
Bazzite host on PipeWire 1.4.10:

1. It was never WirePlumber's default source, so any app recording the *default*
   input (games, Discord, arecord) heard silence. This is the Linux analogue of
   the Windows host forcing the default recording endpoint (audio_control.rs).

2. The real killer on PipeWire 1.4.x: a *non-default* Audio/Source recorded via
   `--target` never gets a driver assigned — the {source, recorder} group stays
   orphaned (pw-top QUANT/RATE 0, driver-node None), so the RT process() callback
   never fires and even an explicitly-selected mic is pure silence. PipeWire 1.6
   drives any recorded source regardless, which is why the host worked on a 1.6
   box but not the 1.4.10 Bazzite host.

Fix: advertise a high priority.session on the source so WirePlumber elects it as
the default source and keeps it driven. Reproduced with a faithful standalone
copy of the node on the same 1.4.10 daemon: no priority.session -> silent,
priority.session set -> audio. Only overrides WirePlumber's auto default; a
user's explicit default.configured.audio.source still wins.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-01 21:31:51 +00:00
enricobuehlerandClaude Opus 4.8 219902d3eb feat(windows-host): mic passthrough — auto-wire audio devices + bundle VB-CABLE
The Windows virtual mic worked only with manual Sound-settings fiddling: on a
headless host (no real audio output) BOTH the desktop-audio loopback and the
virtual mic must run on virtual cables, and on DIFFERENT ones or the loopback
re-captures the injected mic (echo). The Steam pair gives only one usable cable
(Steam Streaming Speakers loopback is silent — validated), so the mic + loopback
collided and echoed, and when the default playback happened to be the mic device
the anti-echo guard reported the mic "unavailable".

Host now auto-wires the devices at startup (audio/windows/audio_control.rs,
ensure_wired_once, hooked from open_audio_capture/open_virtual_mic): default
playback = a loopback-capable render that is NOT a cable and NOT the dead Steam
Speakers (real output > Steam Streaming Microphone); default recording = the mic
capture (VB-Cable "CABLE Output" preferred). Uses a hand-rolled IPolicyConfig
vtable (the only way to set a default endpoint; not in windows/wasapi crates).
Opt out with PUNKTFUNK_KEEP_DEFAULT. wasapi_mic candidates now prefer "cable
input". Validated live: from a deliberately-wrong start (playback=CABLE Input)
the host corrected both default endpoints at the OS level.

A Windows audio endpoint can only be created by a kernel-mode driver (no UMDF
path — ACX is KMDF-only), so we cannot self-sign our own like the UMDF gamepad/
display drivers. Instead the installer bundles + silently installs the official
base VB-CABLE (VB-Audio donationware, vendor-signed → loads with no test-signing,
redistributed under VB-Audio's bundling grant): install-vbcable.ps1 (seed the
VB-Audio cert into TrustedPublisher, run -i -h) + an installaudiocable task,
gated on -VbCableDir/$env:VBCABLE_DIR (the package binary is not in the repo).
Attribution in packaging/windows/licenses/VB-CABLE-NOTICE.txt. .iss compiles
with the path enabled.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-30 09:09:26 +02:00
enricobuehlerandClaude Opus 4.8 7612238a59 feat(audio): end-to-end 5.1/7.1 surround across the native path + all clients
Adds negotiated 5.1/7.1 surround to the punktfunk/1 protocol and every client
(previously stereo-only):

- core: new shared `audio` layout table (LAYOUT_51/71 + identity multistream
  mapping, canonical wire order FL FR FC LFE RL RR SL SR); Hello/Welcome
  `audio_channels` negotiation via the trailing-byte back-compat pattern (old
  peers fall back to stereo); C-ABI `punktfunk_connect_ex6`,
  `punktfunk_connection_audio_channels`, and in-core multistream decode
  `punktfunk_connection_next_audio_pcm` for embedders without a multistream
  Opus decoder. Real-libopus channel-identity round-trip test.
- host: native audio thread captures + Opus-(multi)stream-encodes at the
  negotiated count (with a cross-session cached-capturer channel-mismatch fix);
  GameStream surround unified onto the safe `opus::MSEncoder`, dropping
  `audiopus_sys` (~4 unsafe blocks) and un-gating Windows GameStream surround;
  WASAPI loopback capture relaxed to 2/6/8 with the correct dwChannelMask.
- clients: Linux (PipeWire), Windows (WASAPI), Android (AAudio) decode via
  `opus::MSDecoder` + render multichannel; Apple decodes in-core to PCM →
  AVAudioEngine with an explicit wire-order channel layout; each gains a
  Stereo/5.1/7.1 setting. `punktfunk-probe --audio-channels N` is the headless
  validator.

Verified on Linux: core/host/linux/probe test suites + the Android Rust
(cargo-ndk) build, clippy -D warnings, and rustfmt all green. Windows/Apple
builds, all on-glass checks, and the live native loopback are pending (CI / a
free box).

Also lands the concurrent in-tree HEVC 4:4:4 host work (PUNKTFUNK_444): it
shares the same touched files (quic.rs, punktfunk1.rs, encode/*, ...) and so
cannot be committed separately from the surround changes.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-28 21:11:05 +00:00
enricobuehlerandClaude Opus 4.8 9077d786b9 fix(host/audio): drive the Linux virtual mic with RT_PROCESS (was silent)
windows-host / package (push) Has been cancelled
rpm / build-publish (bazzite, punktfunk-fedora-rpm) (push) Has been cancelled
rpm / build-publish (fedora-44, punktfunk-fedora44-rpm) (push) Has been cancelled
decky / build-publish (push) Has been cancelled
deb / build-publish (push) Has been cancelled
android / android (push) Has been cancelled
windows-msix / package (arm64, C:\Users\Public\ffmpeg-arm64, aarch64-pc-windows-msvc, C:\t-a64) (push) Has been cancelled
windows-msix / package (x64, C:\Users\Public\ffmpeg, x86_64-pc-windows-msvc, C:\t) (push) Has been cancelled
release / apple (push) Has been cancelled
flatpak / build-publish (push) Has been cancelled
docker / build-push (--build-arg FEDORA_VERSION=44, ci, ci/fedora-rpm.Dockerfile, punktfunk-fedora44-rpm) (push) Has been cancelled
docker / build-push (., web/Dockerfile, punktfunk-web) (push) Has been cancelled
docker / build-push (ci, ci/fedora-rpm.Dockerfile, punktfunk-fedora-rpm) (push) Has been cancelled
docker / build-push (ci, ci/rust-ci.Dockerfile, punktfunk-rust-ci) (push) Has been cancelled
docker / build-push (docs-site, docs-site/Dockerfile, punktfunk-docs) (push) Has been cancelled
docker / deploy-docs (push) Has been cancelled
The punktfunk-mic PipeWire source connected without RT_PROCESS, so it ran as an
async/main-loop node. In the host's busy multi-stream graph (desktop audio + video
capture + the session) it never acquired a driver, stayed suspended, and its
process() callback never fired — every recorder reading the remote mic heard pure
silence (the long-standing "Linux host mic broken"). Connect the mic stream with
RT_PROCESS so it is a synchronous node that joins its consumer's driver group and
is actually driven.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-28 12:46:06 +00:00
enricobuehlerandClaude Opus 4.8 5f423718a5 fix(audio/windows): stop the client mic echoing back through the loopback
The Windows virtual mic fakes a capture endpoint by writing the client's
uplinked PCM into a virtual device's *render* endpoint, while the
desktop-audio plane loopback-captures the *default render* endpoint — with
no mutual exclusion between the two. WASAPI loopback captures the mixed
output of an endpoint (everything any app renders to it, including our mic
writes), so when both resolve to the same device — VB-CABLE used for both,
or the auto-installed Steam Streaming Microphone being the default render on
a headless box — the injected mic is captured straight back into the
host->client audio stream: an infinite echo.

find_device() now resolves the loopback's endpoint id (default render) and
skips any candidate matching it, scanning on to the next non-loopback match,
so the mic can never land on the device the loopback reads. The auto-install
path now provisions the full Steam pair (Streaming Microphone + Streaming
Speakers) so a bare host gets two distinct devices instead of one shared
one. Errors distinguish "no device" from "only candidate is the loopback
device". Linux was already immune (its mic is a dedicated Audio/Source node,
structurally separate from the monitored sink).

Windows-only (#[cfg(windows)]); rustfmt-clean, compile-checked in
windows-host CI, needs on-glass validation on the RTX box. Does not force
the system default playback onto Steam Streaming Speakers (IPolicyConfig) —
not required to break the echo.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-26 23:51:46 +00:00
enricobuehlerandClaude Opus 4.8 79c8641c3f docs(host): prove unsafe blocks in the Windows + cross-platform files + gate them (unsafe-proof program 3/N)
Continues the unsafe-proof program across the Windows/cross-platform host files
(~75 blocks, 21 files), each with a SAFETY proof of the real invariant and a
per-file #![deny(clippy::undocumented_unsafe_blocks)] gate:

  capture/windows: dxgi.rs, wgc_relay.rs, wgc.rs, desktop_watch.rs, composed_flip.rs
                   (windows-rs COM: interface validity, same-D3D11-device textures,
                    immediate-context single-thread, borrowed args outlive the call)
  windows: service.rs (SCM/token/CreateProcessAsUserW/event handles — OwnedHandle
           liveness, no double-close/signal race), win_display, wgc_helper, interactive
  vdisplay/windows: manager.rs, pf_vdisplay.rs (SwDeviceCreate/IddCx/ioctl handle
                    liveness via the OnceLock VDM singleton + OwnedHandle)
  encode/windows: ffmpeg_win.rs (full AVBufferRef refcount audit — balanced, NO leaks,
                  unlike the vaapi sibling), sw.rs
  cross-platform: gamestream/audio.rs (libopus), gamestream/stream.rs (sendmmsg),
                  inject/windows/sendinput.rs, audio/windows/wasapi_mic.rs,
                  session_tuning.rs, vdisplay.rs

Two findings (handled separately):
- wgc_relay.rs `unsafe impl Sync for HelperRelay` is UNSOUND (its mpsc Receiver is
  !Sync) though not live-exploited — marked SUSPECT inline; fix pending box check
  (it touches the in-flight punktfunk1.rs).
- capture.rs / encode.rs (PARENT modules of the WIP idd_push.rs / nvenc.rs) do NOT
  get the file deny yet — it would propagate the lint into the undocumented WIP
  children. The deny lands there once those are documented (after the WIP commits).

Linux-visible parts verified green (cargo clippy -p punktfunk-host --all-targets
-- -D warnings). The cfg(windows) deny gates are box-verified next.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-26 09:23:25 +00:00
enricobuehlerandClaude Opus 4.8 fced221684 refactor(windows-host): confine platform code under windows/ + linux/ folders (Goal-1 stage 6)
Move 36 platform-specific files into per-module `windows/` and `linux/` subfolders (and the
shared HID codecs into `inject/proto/`):
  capture/{windows,linux}/  encode/{windows,linux}/  inject/{windows,linux,proto}/
  audio/{windows,linux}/  vdisplay/{windows,linux}/
  src/windows/ (service, wgc_helper, win_adapter, win_display)
  src/linux/  (dmabuf_fence, drm_sync, zerocopy/)

Done with `#[path]`, NOT a module rename: every file moves into its folder while the
`crate::*::*` module names stay FLAT, so all caller paths and every internal `super::`/`crate::`
reference are unchanged — only the parent `mod` decls gained `#[path = "..."]`. This is the
codebase's existing pattern (inject's gamepad_windows) and makes the move byte-identical in
behaviour with ZERO reference churn, far lower risk than collapsing to a single
`crate::capture::windows::` namespace (that deeper rename is an optional follow-on; this delivers
the cfg-sprawl folder confinement the stage is about). Done LAST, after the semantic stages, so
the path churn didn't fight them.

Verified: Linux cargo check + clippy (-D warnings) clean; my mod-decl changes fmt-clean (the 3
remaining fmt diffs are pre-existing local-rustfmt-version skew that moved with their files); all
36 `#[path]` targets exist; no internal `#[path]`/`include!`/file-child-mod in any moved file
(the inline `mod X {` blocks are self-contained). Box build to follow.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-25 18:53:45 +00:00
enricobuehlerandClaude Opus 4.8 c277bba70d feat(host/windows): auto-install a virtual mic device (Steam Streaming Microphone)
So Windows mic passthrough works without the user installing anything: when no virtual-mic
device is present, install Steam Remote Play's SteamStreamingMicrophone.inf (ships under
Steam\drivers\Windows10\{arch}\ next to the speakers INF Apollo uses) via DiInstallDriverW
loaded from newdev.dll — the same mechanism Apollo uses for Steam Streaming Speakers — then
re-find the device. Needs admin (the host runs as SYSTEM); best-effort and safe (no-op if
Steam absent / INF not found / PUNKTFUNK_NO_MIC_INSTALL), falling back to the manual-install
guidance (VB-Audio Cable) otherwise.

Not yet built/validated on the box (down); FFI cross-checked against windows-0.62. Whether
Steam ships SteamStreamingMicrophone.inf at that path is to be confirmed on the box.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-17 17:22:48 +00:00
enricobuehlerandClaude Opus 4.8 3770cc7b61 feat(host/windows): client→host mic passthrough via a virtual audio device
The host received the client's mic uplink (0xCB Opus) but dropped it on Windows ("requires
Linux"). Windows has no user-mode way to CREATE a capture endpoint, so target an existing
virtual audio device and write the decoded mic PCM into its RENDER endpoint — the device's
CAPTURE endpoint then surfaces as a microphone host apps record from (the inverse of a
virtual cable). New audio::wasapi_mic::WasapiVirtualMic: finds the device by friendly-name
(Steam Streaming Microphone / VB-Audio CABLE Input / VoiceMeeter / "virtual", override with
PUNKTFUNK_MIC_DEVICE), opens a WASAPI shared event-driven RENDER client (48 kHz stereo f32,
autoconvert), and a dedicated COM thread writes a bounded (~80 ms drop-oldest) inject queue
with silence-fill. open_virtual_mic() gets a Windows arm; mic_service_thread (Opus decode →
push) now compiles for windows too (opus is already a windows dep). Clear error + install
guidance when no virtual device is present.

Linux/cross-platform side cargo-checks; the Windows path is built/validated when the box is
back (the wasapi render API was cross-checked against the docs + the existing capture path).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-17 17:15:41 +00:00
enricobuehlerandClaude Opus 4.8 5f57be9012 fix(host): self-heal capture loss + audio-thread death mid-session
Two steady-state faults previously bubbled a bare `?` to conn.close / silently
muted the rest of a session. Recover in place instead.

#4 — capture loss (virtual_stream): a mid-session capture stall/disconnect
(`try_latest` Err: PipeWire/compositor thread ended, virtual output gone) ended
the whole session — and the native client has no reconnect path, so it had to
cold-restart the handshake. Now rebuild the pipeline IN PLACE at the current
mode via build_pipeline_with_retry (same primitive the mode/session switch uses),
force a keyframe, and only propagate when the bounded retry is exhausted. A
consecutive-rebuild cap stops a flapping source from looping the client through
endless cold IDRs. Track the live mode so a rebuild after a mode switch targets
the right mode (also fixes the session-switch rebuild using the stale mode).

#3 — native audio thread (audio_thread): broke the loop on ANY next_chunk Err,
spawned once per session and never restarted, so a transient 5 s quiet-sink
timeout permanently muted a multi-hour session. Make a quiet sink return an empty
chunk (not an Err) in both backends so only a genuinely dead capture thread is an
Err, and reopen-with-backoff (INJECTOR_REOPEN_BACKOFF) on death, keeping the Opus
encoder + monotonic seq. Documents the next_chunk contract; also makes the
GameStream audio sender survive quiet sinks for free.

Resolves reliability backlog #3 and #4.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-16 11:04:42 +00:00
enricobuehlerandClaude Opus 4.8 50dec9e7cb style(host/windows): rustfmt the Windows backends
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-15 01:50:16 +00:00
enricobuehlerandClaude Opus 4.8 05426e2f20 feat(host/windows): WASAPI loopback audio capture
Windows AudioCapturer via the wasapi crate (0.23): loopback the default render endpoint (Render device + Direction::Capture + shared mode => STREAMFLAGS_LOOPBACK) at 48 kHz stereo f32 with autoconvert, feeding the existing Opus path with no resampling. Dedicated COM-MTA thread owns the !Send WASAPI objects; interleaved f32 chunks leave over a bounded lossy channel; RAII Drop stops + joins. Bring-up handshake reports a missing endpoint as Err so a session continues without audio. open_audio_capture Windows factory arm + module. Init chain validated live on the VM (open succeeds; next_chunk waits on a silent system). Virtual mic deferred (no Windows virtual-audio endpoint). m3 audio_thread wiring + opus hoist land with the integration task.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-15 00:57:19 +00:00
enricobuehlerandClaude Opus 4.8 eeebd1aab9 feat: mic passthrough — client microphone → host virtual PipeWire source
The inverse of the host→client audio path: the client's mic, Opus-encoded, rides a
new 0xCB QUIC datagram to the host, which decodes it into a virtual PipeWire
Audio/Source its apps can record from (voice chat, etc.).

Protocol (punktfunk-core):
- MIC_MAGIC 0xCB + encode/decode_mic_datagram (mirror of the 0xC9 audio datagram).
- NativeClient::send_mic(seq, pts_ns, opus) over a new outbound channel + worker task
  (mirror of send_input); C ABI punktfunk_connection_send_mic for native clients.

Host:
- audio::VirtualMic + PwMicSource: a PipeWire output stream tagged media.class=
  Audio/Source (Direction::Output) — a recordable microphone node, fed decoded PCM.
- MicService: host-lifetime owner of the source + Opus decoder (mirror of
  InjectorService / the audio capturer slot); lazily opened, persists across sessions,
  self-heals. The per-session datagram reader now demuxes 0xCB→mic / 0xC8→input over a
  single read_datagram loop (two loops would race).
- Adaptive jitter buffer in the producer: primes to ~3 consumer quanta before emitting,
  so the 5 ms push / N ms pull clock skew never underruns — without it ~58% of output
  was silence; with it, glitch-free across consumer quanta.

Client: punktfunk-client-rs --mic-test streams a synthetic 440 Hz Opus tone as the mic
uplink (opus dep added) for end-to-end validation without a real microphone.

Validated live on headless KWin: client tone → host source → pw-record shows the
punktfunk-mic Audio/Source node, 440 Hz dominant (Goertzel power 20.7 vs <0.001
elsewhere), RMS 0.179 ≈ the ideal 0.177, 0.3–0.4% silence at both 256 ms and 10 ms
consumer quanta. Tests +1 (mic datagram roundtrip); workspace green, clippy/fmt clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-10 22:15:07 +00:00
enricobuehlerandClaude Opus 4.8 aa27bbe3e9 feat(gamestream): AV1 negotiation + 5.1/7.1 surround audio
Codec negotiation (M2 polish):
- ServerCodecModeSupport now advertises what we encode: H264|HEVC|AV1_MAIN8
  = 65793 (flags verified against moonlight-common-c Limelight.h). The old
  placeholder 3843 wrongly claimed HEVC Main10 + 4:4:4 and no AV1. Main10
  bits stay off on purpose: Moonlight ties 10-bit to HDR, and capture is
  8-bit SDR BGRx with no HDR metadata path (av1_nvenc -highbitdepth was
  validated working for later).
- RTSP ANNOUNCE: bitStreamFormat 0/1/2 -> H264/HEVC/AV1 (already plumbed to
  av1_nvenc; validated e2e via `m0 --codec av1` + ffprobe av01), and a
  dynamicRangeMode!=0 request now logs + falls back to 8-bit SDR.

Surround audio (M2 polish):
- ANNOUNCE x-nv-audio.surround.{numChannels,AudioQuality} +
  x-nv-aqos.packetDuration -> per-session AudioParams; DESCRIBE advertises
  all six Opus configs (normal before HQ per channel count). Normal-quality
  mappings are pre-rotated for the client's GFE-order LFE swap
  (RtspConnection.c, verified verbatim) so its derived decoder mapping
  equals our encoder mapping — including 7.1, where Sunshine's rotate only
  covers [3,6) and scrambles LFE/SL/SR.
- 5.1/7.1 encode via libopus multistream (audiopus_sys, the sys layer the
  opus crate already links) with Sunshine's layouts/bitrates, RAII wrapper;
  the live-validated stereo wire is byte-identical (plain Opus, no FEC).
- Surround sessions add Sunshine-style RS(4,2) audio FEC (packetType 127 +
  AUDIO_FEC_HEADER, the OpenFEC parity matrix both ends hardcode, nanors
  gemm semantics verified from nanors/rs.c).
- PipeWire capture generalized to the negotiated channel count with explicit
  FL FR FC LFE RL RR [SL SR] positions; missing sink channels are zero-
  filled by the channel-mixer. PwAudioCapturer now tears down cleanly on
  Drop (pipewire channel -> loop quit), so a channel-count change can
  reopen without leaking a capture stream.

Tests: serverinfo mask, RTSP codec/audio param parsing, DESCRIBE contents,
surround-params strings + client-swap round trip, FEC parity self-recovery
and packet layout, real-codec 5.1 channel-identity round trip, and an
ignored live test (ran green against a 6ch null sink monitor).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-10 15:41:15 +00:00
enricobuehlerandClaude Opus 4.8 8cceb93541 rename: lumen → punktfunk, everywhere
Full project rename, decided 2026-06-10:
- Crates/binaries: punktfunk-core / punktfunk-host / punktfunk-client-rs.
- C ABI: punktfunk_* symbols, Punktfunk* types, include/punktfunk_core.h,
  PUNKTFUNK_FEATURE_QUIC guard (header regenerated; cbindgen renames updated, incl.
  PUNKTFUNK_BTN_*/PUNKTFUNK_AXIS_* wire constants).
- Protocol: punktfunk/1 — control-plane magic LMN1 → PKF1, nonce salt lmn1 → pkf1.
  WIRE BREAK: clients must be rebuilt from this revision.
- Env knobs: PUNKTFUNK_VIDEO_SOURCE / PUNKTFUNK_COMPOSITOR / PUNKTFUNK_ZEROCOPY / ….
- Host config dir: ~/.config/punktfunk (the box's dir was migrated in place — the
  persistent identity is unchanged, pinned fingerprints stay valid).
- Swift package: PunktfunkKit + PunktfunkCore.xcframework + PunktfunkConnection
  (Sources/PunktfunkClient app + tests renamed with it); build-xcframework.sh updated.
- scripts/: 60-punktfunk.rules, punktfunk-host.service; OpenAPI doc regenerated.

Also: scripts/headless/run-headless-kde.sh — full headless Plasma bringup. Root cause of
"desktop but no apps/settings" over the stream: plasmashell launched without
XDG_MENU_PREFIX=plasma-, so the launcher resolved a nonexistent applications.menu and
rendered an empty menu. The script sets the complete KDE session env (menu prefix,
KDE_FULL_SESSION, session version) and rebuilds ksycoca before starting plasmashell.

Gate: 97/97 tests, clippy -D warnings (both feature sets), fmt, C-ABI harness PASS,
zero lumen references left outside .git.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-10 13:11:59 +00:00