42 Commits

Author	SHA1	Message	Date
enricobuehler	4994f7f4ba	feat(windows-client): WinUI 3 (windows-reactor) UI — host list, settings, pairing, SwapChainPanel present ... Replaces the winit + raw-HWND-D3D11 shell with a native WinUI 3 UI via windows-reactor (a declarative React-like framework backed by WinUI). The earlier "Reactor can't host a swapchain" read was wrong — PR #4499 (merged 2026-06-01) added a SwapChainPanel widget with `set_swap_chain` over `CreateSwapChainForComposition`. Builds + clippy + fmt green on x86_64-pc-windows-msvc. - Cargo: drop winit/raw-window-handle; add windows-reactor + the `windows` crate, both pinned to the SAME windows-rs commit (b4129fcc) so the `IDXGISwapChain1` handed to `set_swap_chain` satisfies reactor's `windows_core::Interface`. Reactor's build.rs downloads the Windows App SDK NuGets + stages the bootstrap DLL/resources.pri — it requires `CARGO_WORKSPACE_DIR` set (now in the VM build env); /temp + /winmd gitignored. - present.rs: composition swapchain (B8G8R8A8 FLIP_SEQUENTIAL premultiplied) bound to the SwapChainPanel; WARP fallback, runtime D3DCompile shaders, dynamic RGBA texture, Contain-fit letterbox; driven by reactor's per-frame `on_rendering`. - app.rs: the WinUI 3 shell — host list (live mDNS + saved + manual), settings (resolution/ refresh/mic combos+toggle), in-app SPAKE2 PIN pairing screen, and the stream page. Trust gate mirrors the GTK client (pinned → silent, pair=optional → TOFU, else PIN); a pinned-fp mismatch routes to re-pair. The session pump + decoded-frame handoff cross to the UI thread via a Mutex side-channel + thread-locals (the SwapChainPanel sample's pattern). - gamepad: `ctl` sender now `Arc<Mutex<…>>` so GamepadService is `Sync` (shared across the UI and session-pump threads). main.rs: windowed = in-app UI; `--headless`/`--discover` keep the CLI paths. Not yet wired: raw stream keyboard/mouse input (next commit — reactor exposes no raw key/ pointer events, so it needs Win32 low-level hooks or Microsoft.UI.Xaml bindings). On-glass validation pending a display (the dev VM is headless/GPU-less). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>	2026-06-15 22:58:48 +00:00
enricobuehler	296b976b8f	feat(windows-client): SDL3 gamepads + docs — full stage-1 parity, MSVC-green ... Adds the SDL3 gamepad service (near-verbatim port of the GTK client's — SDL3 is cross-platform) and wires it into the winit app: per-session capture (buttons/axes, DualSense touchpad + motion 0xCC), feedback (rumble, lightbar, raw DualSense effects), single-pad-forwarded model with auto pad-type from the physical controller. Built from source on Windows (no system SDL3). - gamepad.rs: GamepadService (app-lifetime SDL thread) attach/detach on session connect/end; auto_pref resolves "Automatic" to the attached pad's type. - app.rs: hold the service, attach on Connected, detach on Ended/Failed/close. Also simplify the keydown path (drop the identical if/else arms). - main.rs: start the service for the windowed path, resolve GamepadPref from settings + the physical pad. Build gotcha documented + fixed in the dev loop: SDL3's build-from-source MSVC precompiled-header chokes on the `ü` in the dev box's username embedded in the cargo registry path (MSB8084/C4828) — CARGO_HOME must be an ASCII path (C:\Users\Public\.cargo). Unrelated to our code. Docs: CLAUDE.md M4 + docs/windows-client-bootstrap.md status banner (winit-not-Reactor rationale, CARGO_HOME gotcha, what's pending) + docs-site clients.md "Windows desktop client (in development)". Crate is build + clippy + fmt + test green on x86_64-pc-windows-msvc. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>	2026-06-15 22:11:35 +00:00
enricobuehler	e4bdec97bd	feat(windows-client): winit + D3D11 present, WASAPI render, input — builds live on MSVC ... Builds on the prior headless scaffold (which was committed but never VM-built — its audio.rs had two non-compiling wasapi calls). This makes the whole crate build + clippy + fmt + test green on x86_64-pc-windows-msvc and adds the windowed client. - Fix audio.rs: `DeviceEnumerator::new()?.get_default_device(...)` (the free fn doesn't exist) and the 3-arg `write_to_device` (wasapi 0.23). WASAPI shared-mode event-driven render + mic capture now compile and link. - present.rs: D3D11 renderer with WARP fallback (GPU-less dev box), runtime-compiled fullscreen-triangle shaders, dynamic RGBA video-texture upload, Contain-fit letterbox draw, and a flip-model swapchain on the window HWND. - app.rs: winit 0.30 ApplicationHandler — present loop + Moonlight-style click-to-capture input (keyboard via the physical-KeyCode→VK keymap, absolute mouse, wheel, F11), held state flushed on release/focus-loss. - keymap.rs: winit physical KeyCode → Windows VK (layout-independent positional mapping, the analogue of the Linux client's evdev table). - main.rs: windowed default + `--headless` counting mode, `--discover` (mDNS list), `--pair PIN` (SPAKE2 ceremony), `--pin HEX`/known-host/TOFU trust, settings-backed CLI defaults. UI decision: winit + raw D3D11 (the bootstrap doc's sanctioned fallback), confirmed by a research pass — windows-rs "Reactor" ships no SwapChainPanel / SetSwapChain escape hatch, so it can't host the presenter; winit+WARP validates on the GPU-less VM. Native-chrome host-list/settings GUI + D3D11VA hardware decode + 10-bit/HDR present are follow-ups. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>	2026-06-15 21:59:40 +00:00
enricobuehler	b9f4cf1f3e	fix(host/windows): don't 2-way-split-encode Main10 — it's SLOWER on Ada (fixes broken HDR animations) ... The "broken animations in HDR" was an encode-throughput cliff, not the ACCESS_LOST churn. Measured at 5120x1440@240 HEVC Main10 on the RTX 4090: forced 2-way split-encode = 7.6 ms/frame (~131 fps, well over the 4.17 ms/240fps budget → choppy), while SINGLE engine = 2.8-3.9 ms/frame (~256-357 fps, fits 240). The split/merge overhead dominates for 10-bit; a single Ada NVENC engine already handles 5K@240 Main10 comfortably. So the split decision now forces DISABLE for Main10 (bit_depth >= 10), keeping the existing forced-2 only for 8-bit above 1 Gpix/s. PUNKTFUNK_SPLIT_ENCODE still overrides. Added a split-mode log line. Validated live on the 4090: encode_us_p50 7.6 ms → 3.9 ms at 5K240 HDR with no env override. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-15 21:40:28 +00:00
enricobuehler	c830246037	feat(host/windows): UDP send offload + NVENC 2-way split-encode (1 Gbps+ / 5K@240) ... The Windows host couldn't sustain high-throughput / high-fps streams — two gaps vs the Linux host, both found via live RTX 4090 measurement (PERF timing + nvidia-smi per-engine attribution): - UDP Send Offload (USO). punktfunk-core's UdpTransport sent one packet per `send` syscall on Windows (send_batch/send_gso were Linux-only), capping throughput at high packet rates. Add a Windows `send_gso` override using `WSASendMsg` + `UDP_SEND_MSG_SIZE` (the Windows analogue of Linux UDP GSO) via windows-sys — one syscall segments a coalesced <=512-segment super-buffer to the connected peer. On by default with auto-fallback (PUNKTFUNK_GSO=0 disables, error latches off); plugs into the existing paced send path. SO_SNDBUF (32MB) was already cross-platform. - NVENC 2-way split-frame encoding. A single Ada NVENC session tops out ~0.8 Gpix/s, so 5K@240 (1.77 Gpix/s) took ~8 ms/frame -> a ~125 fps ceiling at high motion (the in-game stutter). Set NV_ENC_INITIALIZE_PARAMS.splitEncodeMode = TWO_FORCED above ~1 Gpix/s (matching the Linux libavcodec split_encode_mode path) to use both 4090 encoders — measured ~8 ms -> ~4 ms/frame at throughput. Env override PUNKTFUNK_SPLIT_ENCODE; init-failure fallback disables it (e.g. H264). Windows-only paths; Linux/macOS unaffected. Builds clean on x86_64-pc-windows-msvc. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-15 16:52:59 +00:00
enricobuehler	8c8d576e52	feat(android): host→client audio — Opus → AAudio (LowLatency) ... M4 Android stage 1 (audio). An audio thread pulls Opus packets from the connector (next_audio), decodes to interleaved f32 stereo, and feeds AAudio via its realtime data callback through a jitter ring ported from the Linux client (prime ~3 quanta, drop-oldest cap, re-prime on drain). All in Rust on native threads — symmetric with the video decode path. - crates/punktfunk-android: audio.rs (Opus decode + jitter ring + AAudio callback); SessionHandle gains an audio slot; nativeStartAudio/nativeStopAudio JNI; Drop stops it. Android-only deps: opus 0.3 (libopus via cmake, static) + ndk "audio" (AAudio) — pure C/NDK, no libc++_shared to bundle. - clients/android: NativeBridge start/stop audio, called in the SurfaceView lifecycle. - kit/build.gradle.kts: cargo-ndk env for the libopus cmake build (NDK root, Ninja, LIBOPUS_STATIC/NO_PKG) + --platform 31 (libaaudio is API 26+). Verified live (emulator -> gamescope host on the LAN box): AAudio opened 48k/stereo/f32; a 440 Hz tone played into the host capture sink reached the client decoded -- opus ~200/s, pcm_frames climbing in lockstep, peak=0.089 (real content, not silence), with video streaming concurrently. Some underruns under emulator jitter (verify on hardware). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-15 09:25:24 +02:00
enricobuehler	8cba886c17	feat(host/windows): ViGEm virtual gamepad backend ... Windows GamepadManager via vigem-client (ViGEmBus) — the uinput-xpad analogue: one virtual Xbox 360 controller per client pad index, created lazily on first State. GameStream/Moonlight already uses the XInput conventions (low-16 button bits, sticks -32768..32767 +Y up, triggers 0..255), so the GamepadFrame->XGamepad mapping is 1:1. Replaces the non-Linux GamepadManager stub (same new/handle/pump_rumble API the m3 PadBackend drives, so no m3 change). Graceful when ViGEmBus is absent (gamepad disabled, session continues). Compiles clean on Windows + Linux; live-test needs the ViGEmBus driver + a physical pad. Rumble back-channel is a TODO (ViGEm notification API). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-15 01:46:51 +00:00
enricobuehler	69ba6ec45d	feat(host/windows): NVENC D3D11 hardware encoder (--features nvenc) ... Zero-copy capture->encode on the GPU via the raw NVENC API (nvidia_video_codec_sdk sys + ENCODE_API; the safe wrapper is CUDA-only). Opens an NV_ENC_DEVICE_TYPE_DIRECTX session on the SAME ID3D11Device as the DXGI capturer (carried on the new FramePayload::D3d11), registers a pool of BGRA textures once, CopyResources each captured texture in and encode_picture; CBR/ULL, infinite GOP, P-only, forced-IDR for RFI. The DXGI capturer gains a D3D11 zero-copy output (selected, like the encoder, by PUNKTFUNK_ENCODER=nvenc) so capture+encode share textures. OFF by default (the nvenc feature pulls the NVENC SDK + cudarc): the default Windows host links without it (openh264 path). cudarc builds toolkit-less via the SDK ci-check feature (dynamic-loading). At link time --features nvenc needs nvencodeapi.lib (NVENC SDK, or an import lib generated from the driver's nvEncodeAPI64.dll) on PUNKTFUNK_NVENC_LIB_DIR. Both default and --features nvenc builds validated to compile+link GPU-less on the VM (import lib generated from the driver DLL). Runtime needs a real NVIDIA GPU. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-15 01:39:46 +00:00
enricobuehler	45e5157091	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
enricobuehler	cbbeaa5c29	feat(host/windows): openh264 software H.264 encoder (GPU-less path) ... Windows Encoder impl via the openh264 crate (statically-bundled, BSD-2): low-latency screen-content config (Baseline/no-B-frames, bitrate RC, BT.709 limited, near-infinite GOP + forced-IDR recovery via request_keyframe), packed CPU pixels (BGRx/BGRA/RGB/RGBA/RGBx/BGR) -> I420 -> AnnexB with in-band SPS/PPS each IDR. Synchronous: submit encodes immediately, poll hands back the one AU, flush is a no-op. Windows open_video factory selects it (PUNKTFUNK_ENCODER=software|nvenc|auto; NVENC arm lands later), H.264-only with a clear error otherwise, SW bitrate ceiling. Unit-tested live on the VM: synthetic BGRx -> AnnexB IDR + SPS NAL. Unblocks the GPU-less capture->encode->FEC->send pipeline. Compiles clean on Windows + Linux. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-15 00:43:19 +00:00
enricobuehler	2264474c68	Merge remote-tracking branch 'origin/main'	2026-06-15 00:05:58 +00:00
enricobuehler	26741feada	feat(host/windows): SudoVDA virtual-display backend (control path) ... Windows VirtualDisplay backend driving SudoVDA (the Apollo IDD) via its DeviceIoControl IOCTL protocol: open by interface GUID, ADD at the client's exact WxH@Hz (mode baked into the IOCTL, no EDID seeding), mandatory watchdog ping thread, QueryDisplayConfig name resolution, RAII Drop -> REMOVE. Wired behind the existing VirtualDisplay trait (open()/probe() Windows arms). Validated live on the GPU-less VM (standalone + via the trait, env-gated test): version 0.2.1, ADD 1920x1080@60 -> target, watchdog hold, REMOVE. Monitor activation into a WDDM path (-> capturable \\.\DisplayN) needs a real GPU and is deferred with capture/NVENC. docs/windows-host.md updated. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-15 00:05:40 +00:00
enricobuehler	de7b8ac282	feat(android): video decode pipeline — NDK AMediaCodec → SurfaceView ... M4 Android stage 1 (video). Pull HEVC access units from the connector and render them to the SurfaceView entirely in Rust (NDK AMediaCodec → ANativeWindow) — no per-frame JNI, honoring the native-thread hot-path invariant. - crates/punktfunk-android: decode.rs (one-in/one-out AMediaCodec loop; in-band VPS/SPS/PPS so no out-of-band csd; dims from NativeClient::mode). SessionHandle now holds an Arc<NativeClient> + the decode thread; nativeStartVideo/nativeStopVideo. - clients/android: connect screen (host/port) + full-screen SurfaceView stream screen — surfaceCreated -> nativeStartVideo, leaving -> stop + close. Verified live (Android emulator -> m3-host on the LAN box, ABI v2): QUIC handshake, 8-round clock-skew sync, HEVC decoder configured at 1280x720, and the data plane delivered + fed all 299 access units (the punktfunk/1 NAT hole-punch worked through the emulator's SLIRP). Real-pixel render is pending a non-synthetic source: `m3-host --source synthetic` emits dummy transport payloads (not HEVC), so the decoder correctly produces nothing; `--source virtual` (a compositor on the host) is needed to verify decode-to-screen. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-15 02:03:48 +02:00
enricobuehler	79217eb93d	feat(android): scaffold the native Android client (Rust-heavy JNI bridge) ... Rust-heavy client model (like punktfunk-client-linux): a new cdylib crate crates/punktfunk-android links punktfunk-core and exposes the JNI seam; Kotlin (clients/android) owns only the Android-framework surface. Kotlin can't import the C header the way Swift can, so the bridge is written in Rust to reuse the Linux client's orchestration rather than re-port it. - crates/punktfunk-android: JNI bridge — abiVersion/coreVersion native-link proof + session connect/close handle; plane pumps stubbed for M4 stage 1. - clients/android: Gradle project — :app (Compose) + :kit (Android library with a cargo-ndk Exec task -> jniLibs). AGP 9.2 / Gradle 9.4.1 / Kotlin 2.3.21 / Compose BOM 2026.05.01 / compileSdk 37 / targetSdk 36 / minSdk 31, shipping arm64-v8a + x86_64. Phone + TV (leanback) installable. README rewritten. - .gitea/workflows/android.yml: CI mirroring apple.yml on a Linux runner. - punktfunk-core: switch rcgen to the ring backend so the whole quic tree is aws-lc-free (smaller client .so, cmake-free cross-compile; a win for all targets). Validated on this box: :app:assembleDebug -> APK with both ABIs; emulator first-light renders the bridge linked (core ABI v2) with logcat confirmation; clippy -D warnings + cargo fmt clean; core tests green on the ring backend. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-15 01:38:35 +02:00
enricobuehler	b4a85a8610	feat(host/mgmt): mTLS auth — a paired client's cert authorizes the REST API ... Phase 1 of moving the library off a manual mgmt token: the management API now serves over HTTPS with the host's persistent identity (the cert clients already pin) and OPTIONAL client-cert auth. A request is authorized if EITHER the peer presented a client certificate whose SHA-256 is in the punktfunk/1 paired store (the same trust the QUIC data plane uses — so a paired native client needs no token), OR it carries the bearer token (the web console / admin). `/health` stays open. axum-server can't surface the peer cert to a handler, so `serve_https` runs the rustls handshake itself (tokio-rustls), reads the verified peer certificate, and serves the axum Router over hyper with the fingerprint attached to each request; `require_auth` checks it against `NativePairing::is_paired`. The verifier reuses the GameStream AcceptAnyClientCert, parameterized to make client auth optional (a browser with no cert still completes the handshake and falls back to the token). Validated live: paired cert → 200, unpaired cert / no creds / bad token → 401, bearer → 200, /health open. (Note: the API is now HTTPS with a self-signed cert — a browser shows a one-time trust prompt; native clients pin by fingerprint.) Next: Apple client presents its identity over mTLS (drops the token field); embed the web console; enable HTTPS mgmt by default. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-14 17:37:25 +00:00
enricobuehler	71f26083a6	bench(core): Tier-1 criterion microbenchmarks for the punktfunk/1 hot path ... GPU-free, so they run in normal CI. Two layers: crypto/{seal,seal_in_place,open} on one MTU shard, and pipeline/{gf8,gf16}/{64KB,1MB} — a whole frame through the real per-frame path end to end over the loopback transport (FEC encode → AES-GCM seal → packetize → reassemble → FEC decode → open). Baselines on the dev box (RTX 5070 Ti VM): AES-GCM ~1.57 GiB/s/shard; gf16 ~418 MiB/s at 1 MB vs gf8 ~23 MiB/s (the GF(2^8) O(n^2) ceiling the GF(2^16) Leopard wall-breaker removes — exactly the kind of regression this should catch). The GPU capture/NVENC path is out of scope here (Tier 3). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-13 19:18:40 +00:00
enricobuehler	96a35ca84c	feat(client-linux): native GTK4 client — stage 1, first light at 1080p60 ... New crate crates/punktfunk-client-linux (binary punktfunk-client), the native Linux client on the Option A architecture (2026-06-12 research): - GTK4/libadwaita shell linking punktfunk-core directly (no C ABI): mDNS host list, TOFU fingerprint prompt, SPAKE2 PIN pairing dialog, preferences (mode/bitrate/gamepad/shortcut capture), stats overlay, --connect host[:port] for scripting. - Video: FFmpeg software HEVC decode (LOW_DELAY, slice threads) -> RGBA -> GdkMemoryTexture inside GtkGraphicsOffload (the dmabuf subsurface path lights up when VAAPI lands; black-background keeps fullscreen scanout-eligible). - Audio: Opus -> PipeWire playback stream, the host virtual-mic's adaptive jitter ring inverted. - Input: keyboard as the exact inverse of the host VK table (evdev keycodes, layout-independent; unit-tested), absolute mouse through the Contain-fit transform, WHEEL_DELTA(120) scroll, compositor shortcut inhibition while streaming, Ctrl+Alt+Shift+Q release chord, F11 fullscreen. SDL3 gamepad capture (single pad-0 model) + rumble and DualSense lightbar feedback on the same thread. - Session pump owns video+audio pulls; the gamepad thread owns rumble+hidout — possible because NativeClient's plane receivers are now mutexed, making it Sync (Arc-shared, compiler-verified per-plane contract instead of the ABI's manual assertion). - Linux-gated deps + a stub main keep cargo build --workspace green on macOS. Validated live against serve --native on this box: 1920x1080@60, locked 60 fps, capture->decoded p50 ~6.4 ms (software decode, debug build). Teardown keys off AdwNavigationPage::hidden — NavigationView push fires a transient unmap/map cycle that must not end the session. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-06-12 20:16:30 +00:00
enricobuehler	4fff4641bb	feat(discovery): native-protocol LAN auto-discovery over mDNS ... Both the unified host (serve --native) and standalone m3-host now advertise the native punktfunk/1 service over mDNS (_punktfunk._udp) — the analogue of the GameStream _nvstream._tcp advert. TXT records carry proto, the host cert fingerprint (fp, the value clients pin), the pairing requirement (pair=required|optional), and the host id. New crate::discovery module, wired into m3::serve so both host entry points get it; best-effort, never blocks streaming (--connect always works). Client gains `punktfunk-client-rs --discover [SECS]`: browses the LAN and prints each host (name, addr:port, pairing, fingerprint), then exits. Apple clients browse the same service natively via NWBrowser (service type + TXT keys are the contract). Validated cross-LAN: the dev box discovered the GNOME-box appliance (pair=required) and a standalone synthetic host (pair=optional); fingerprint and pairing state correct in both. Also refresh the now-stale sendmmsg caveat in the bitrate doc (batched/paced send landed + validated to 1 Gbps) and mark the encode|send thread split done in §12. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-12 10:37:12 +00:00
enricobuehler	c70db56115	build: lock libc (sendmmsg dep from the previous commit) ... Cargo.lock update for the Linux-only `libc` dependency added in c24b571 (batched sendmmsg send). Keeps the lockfile in sync with Cargo.toml. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-11 21:55:40 +00:00
enricobuehler	0f333460ec	fix(core): grow UDP socket buffers — fixes 4K/5K video freezing on one frame ... The data-plane UDP sockets used the OS default buffer (~208 KB on Linux, similar on macOS), which is smaller than a single high-resolution frame burst: a 5120×1440 keyframe is ~130 packets the encode|send thread hands to sendmmsg at once. The burst overflows the buffer — EAGAIN on the host send (now dropped, was fatal) or a silent drop on the client recv — and because the data plane runs infinite-GOP, one lost frame breaks every subsequent reference and the decode freezes on the last good frame until an RFI refresh that may never catch up. Symptom: connect at 5120×1440, see ONE frame, then a frozen image (audio + input keep working — those ride QUIC, not this socket). Set SO_SNDBUF/SO_RCVBUF to 8 MB (clamped by the OS to net.core.{w,r}mem_max on Linux / kern.ipc.maxsockbuf on macOS); warn if the grant lands far below target so an undersized host is diagnosable. The client side matters most — the SAME UdpTransport backs the Apple client's data plane via the C ABI, and macOS grants multi-MB buffers without any sysctl, so a rebuilt client stops losing frames. Validated live, bazzite→client at 5120×1440: was 1319/1500 frames (12% loss → freeze), now 1500/1500 @60 and 5279/5279 @240 (split-encode active), zero mismatches, p50 1.9–3.4 ms. Host send buffer was still capped at 416 KB and lost nothing — the loss was purely the client recv buffer. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-11 13:28:02 +00:00
enricobuehler	0755c823a5	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
enricobuehler	ff4fe197be	fix(punktfunk/1): adversarial-review fixes — SPAKE2 pairing, renegotiation hardening, +more ... Triaged the multi-agent review of the renegotiation + pairing + Sway + AV1/surround batch (1 critical, 11 major/minor confirmed). Fixes: CRITICAL — PIN pairing was offline-brute-forceable. The HMAC-of-PIN proof let an active MITM who terminates the TOFU ceremony recover the 4-digit PIN by offline dictionary search (all other inputs observable) and forge a correctly-bound proof. Replaced with **SPAKE2** (balanced PAKE, `spake2` crate) + key-confirmation MACs, binding both cert fingerprints as the SPAKE2 identities: an attacker gets exactly ONE online guess, no offline search, and mismatched cert views (a real MITM) never reach a shared key. Also reworked the UX to an "arming PIN" — one PIN per arming window shown at host startup (the SPAKE2 client needs the PIN to build its first message, so it can't be minted per-connection). Validated live: wrong PIN rejected in 0.1s, right PIN pairs + persists + the paired identity streams. Pairing hardening: `--allow-pairing`/`--require-pairing` must arm pairing (default rejects unsolicited ceremonies); per-host cooldown bounds online guessing; the client flushes its CONNECTION_CLOSE so a refused ceremony can't wedge the sequential host for the full timeout; atomic (temp+rename) paired-store writes. Protocol: control/pairing messages use a distinct CTL_MAGIC (PKFc) — fully disjoint from the positional Hello namespace (a future abi_version can't be misparsed as a control message); all typed decodes are length-exact. ABI_VERSION → 2 (punktfunk_connect signature gained the identity params; header regenerated). Renegotiation: drain the reconfig channel to the NEWEST mode (one rebuild, not one per stale step); validate refresh_hz; build the new pipeline BEFORE dropping the old so a rebuild failure keeps the session on its current mode instead of killing it. GameStream: packetDuration snaps to {5,10} (an in-between value isn't a legal Opus frame size and would kill audio). Sway: chooser file moved to $XDG_RUNTIME_DIR (was a fixed world-writable /tmp path — DoS / capture-misdirection by another local user). Swift: fixed two compile breakers in the new pairing/identity APIs (Int32 status .rawValue, UInt cap cast). New SPAKE2 + namespace-disjointness + pairing-roundtrip unit tests; the in-process pairing test now also exercises the arming PIN + cooldown. 114 tests green, clippy -D warnings clean (both feature sets), fmt, C-ABI harness. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-10 16:26:48 +00:00
enricobuehler	429bd1e6ac	Merge branch 'worktree-agent-a6fe98c40d55fd284' into m1-lumen-core ... # Conflicts: # CLAUDE.md	2026-06-10 15:42:48 +00:00
enricobuehler	4d26ac5c85	feat: punktfunk/1 — mid-stream mode renegotiation + PIN pairing ceremony ... Renegotiation (no reconnect on resize): the handshake bi-stream stays open; the client sends Reconfigure{mode} (typed post-handshake message), the host validates + acks Reconfigured and rebuilds capture/encoder/virtual output at the new mode while the data plane (keys, ports, FEC) runs untouched — the first new-mode AU is an IDR with in-band parameter sets. NativeClient::request_mode / punktfunk_connection_request_mode; mode() reflects the active mode. Validated live on KWin: one continuous stream, 225 frames @1280x720 then 395 @1920x1080, ~90 ms pipeline rebuild (ffprobe shows both resolutions). PIN pairing (mutual trust, kills TOFU MITM): clients get persistent self-signed identities presented via QUIC client auth (generate_identity / client auth offered but optional server-side — legacy clients still connect). Ceremony on the control stream: PairRequest{name} → host shows a 4-digit PIN (log) + PairChallenge{salt} → client proves with HMAC-SHA256(PIN‖salt, client_fp‖host_fp) — binding both certs means a MITM can't forward a proof, single attempt per PIN, constant-time compare → PairResult; host persists the fingerprint (~/.config/punktfunk/punktfunk1-paired.json), client pins the host's. m3-host --require-pairing gates sessions on the paired set. NativeClient::pair + punktfunk_pair/punktfunk_generate_identity in the ABI; reference client: --pair PIN --name LABEL + auto-generated persistent identity, --remode for live renegotiation testing. Swift wrapper: ClientIdentity/generateIdentity()/pair(), requestMode()/currentMode(); README handoff updated. Tested: reconfigure/pairing wire roundtrips, C-ABI mode switch ack, full in-process ceremony (wrong PIN → Crypto, anonymous-vs-gate rejection, success → pinned session); live wrong-PIN ceremony against the serving host (PIN logged, proof rejected). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-10 15:42:29 +00:00
enricobuehler	3cc3c02b42	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
enricobuehler	bfd64ce871	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
enricobuehler	520d7342dd	feat: M3 — full lumen/1 session planes: audio, gamepads+rumble, pinned trust, persistent listener ... m3-host is now a real host, not a one-shot demo. Everything validated live on this box (two back-to-back sessions, pinned + TOFU, ~200 audio pkts/s, p50 0.84 ms at 720p60). lumen-core: - quic.rs: QUIC-datagram side planes demuxed by first byte — Opus audio 0xC9 ([magic][u32 seq][u64 pts_ns][opus], host→client) and rumble 0xCA ([magic][pad][low][high]). - Trust: endpoint::server_with_identity (persistent PEM identity) and endpoint::client_pinned — SHA-256 cert-fingerprint pinning with TOFU (observed fingerprint reported back for persisting). The verifier checks the TLS 1.3 CertificateVerify signature for real (an MITM replaying the host's public cert without its key is rejected; cert pinning alone would not prove key possession). - client.rs: NativeClient gains pin + host_fingerprint, audio/rumble receivers (next_audio / next_rumble); pull methods take &self so the C ABI's per-plane threads never alias a &mut (per-plane mutexed borrow slots in abi.rs). - abi.rs: lumen_connect(pin_sha256, observed_sha256_out) + lumen_connection_next_audio / next_rumble. input.rs: documented gamepad wire contract (GameStream buttonFlags bits, XInput axis conventions, +y = up) — exported as LUMEN_BTN_*/LUMEN_AXIS_* (bare BTN_* collides with <linux/input-event-codes.h> at different values). lumen-host (m3): - Persistent accept loop: sessions back to back on one endpoint (--max-sessions, 0 = forever); per-session failures log and the loop keeps serving; 10 s handshake deadline so a silent client can't wedge the sequential accept queue; teardown on every exit path (stop flag → conn.close → join audio+input threads). - Audio plane: desktop PipeWire capture → Opus 48 kHz stereo 5 ms CBR → datagrams; ONE capturer reused across sessions via an AudioCapSlot (PipeWire streams have no cheap teardown — per-session opens would leak a thread + core connection + live node each). - Gamepad routing: incremental GamepadButton/GamepadAxis datagrams accumulate into per-pad state feeding the uinput xpad manager; force feedback returns as rumble datagrams, with current state re-sent every 500 ms (idempotent-state healing for the lossy channel). QUIC endpoint serves the persistent ~/.config/lumen identity and logs the pinnable fingerprint. lumen-client-rs: --pin (malformed values abort — never silently downgrade to TOFU), TOFU fingerprint logging, audio/rumble datagram counters, gamepad events in --input-test. clients/apple: scaffold synced — pinSHA256/hostFingerprint (wrong-size pin throws, fail-closed), nextAudio/nextRumble, gamepad event constructors; README handoff updated (persistent listener, audio decode notes, trust UX). Adversarially reviewed (5-dimension multi-agent pass over the diff, 2-skeptic verification): fixed the MITM signature-check gap, a Y-axis contract inversion, header macro collisions, ABI aliasing UB, the PipeWire per-session leak, the missing handshake deadline, fail-open pin parsing, and teardown-on-error paths. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-10 12:26:18 +00:00
enricobuehler	68f2b19cca	Merge main (management REST API) into m1-lumen-core ... Resolutions: serve() keeps main's AppState::new() with our persisted-pairing load folded into it; main.rs keeps both the m3 and mgmt modules; mgmt's test LaunchSessions gain the new appid field; Cargo.lock re-resolved. Full gate green (92 tests, clippy, fmt). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-10 07:03:41 +00:00
enricobuehler	de3123038f	feat: M3 seed — the lumen/1 native protocol: QUIC control plane + reference client (Phase 5) ... The first end-to-end run of lumen's own protocol, past the GameStream compatibility layer. - lumen-core/src/quic.rs (behind the `quic` feature): the lumen/1 handshake — Hello/Welcome/ Start as length-prefixed LE binary on one QUIC bi-stream. Welcome carries the COMPLETE data-plane Config: mode, FEC scheme incl. GF(2^16) Leopard (inexpressible in GameStream), shard sizing, AES-GCM key + per-direction salt, data UDP port. Plus quinn endpoint helpers (self-signed server; accepts-any client — pinning lands with the trust model) and framed async IO. Round-trip unit-tested. - lumen-host m3-host: serves one lumen/1 session — QUIC handshake, then a NATIVE thread (no async on the frame path — design invariant) streams deterministic 64KB test frames through the hardened M1 Session over UdpTransport. - lumen-client-rs: from scaffold to working reference client — connects, negotiates, brings up the client Session over UDP, reassembles + FEC-recovers + byte-verifies every frame. VALIDATED END-TO-END on localhost: 300/300 frames verified, 0 mismatches, through QUIC-negotiated GF(2^16) FEC + AES-GCM over real UDP sockets. M4 (decode+present) builds on this exact client skeleton. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-09 23:33:40 +00:00
enricobuehler	826da9968e	feat: M2 — Vulkan bridge: TRUE zero-copy for gamescope's LINEAR dmabufs (Phase 3) ... The missing zero-copy path is closed. NVIDIA's EGL won't sample LINEAR and the CUDA driver rejects raw dmabuf fds — but Vulkan imports dmabufs (VK_EXT_external_memory_dma_buf) and exports OPAQUE_FD memory that CUDA officially imports. zerocopy/vulkan.rs (ash): dmabuf fd → VkBuffer (import cached per fd) → vkCmdCopyBuffer (GPU) → exportable VkBuffer → vkGetMemoryFdKHR(OPAQUE_FD) → cuImportExternalMemory → CUdeviceptr The exportable buffer + CUDA mapping are per-resolution; per frame it's one GPU buffer copy (fence-waited) + one pitched CUDA copy into the encoder's pool. No CPU touches pixels. EglImporter::import_linear now routes through the bridge (lazy init; any failure still falls back to the CPU mmap path). cuda::ExternalDmabuf gained import_owned_fd for the Vulkan-exported fd. Validated live: gamescope 720p120 → "Vulkan→CUDA exportable staging buffer ready size=3686400" (exactly 1280*720*4), full-rate 122.7 fps, decoded frame pixel-correct (vkcube). KWin's tiled EGL path regression-tested intact. NV12 negotiation dropped — moot now that BGRx is fully zero-copy. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-09 23:18:38 +00:00
enricobuehler	c8f9032dec	feat: M2 — harden gamescope capture path (blocked on gamescope ≥3.16.22 upstream fix) ... Deep investigation (gdb + daemon traces) proved the gamescope capture stall is a gamescope 3.16.20 bug, not ours: it calls pw_loop_iterate() without pw_loop_enter()/leave(), and under PipeWire 1.6's loop locking its main thread permanently holds the loop mutex — the pw thread deadlocks, gamescope never acks the daemon's port_set_param(Format), and the link parks in "negotiating" silently. Stock gst pipewiresrc fails identically. Fixed upstream by gamescope commit e3ed1ea7 ("pipewire: Fix pipewire loop locking", pipewire#5148); first release 3.16.22. Ubuntu 26.04 ships 3.16.20 (built ten days before the fix) — patch/upgrade required. Consumer-side improvements from the investigation (all verified correct vs gamescope's pods, and needed once the producer is fixed): - discover the node from gamescope's own "stream available on node ID: N" log line (its node.name appears on two objects; the advertised id is authoritative); pw-dump fallback - CPU path accepts mappable dmabufs: Buffers param now offers MemPtr|MemFd|DmaBuf (gamescope counter-offers exactly DmaBuf when its modifier pod wins, never MemPtr), mmap the fd ourselves when MAP_BUFFERS didn't (Vulkan-exported dmabufs aren't flagged mappable), and treat chunk.size==0 as the computed span - warn_once on every silent frame-drop path in the process callback - node.dont-reconnect on our capture streams: an orphaned stream re-targeted by wireplumber onto a fresh node wedges it — and a stuck link head-blocks the daemon's shared work queue, stalling ALL new link negotiation system-wide (this poisoned whole test sessions) - LUMEN_GAMESCOPE_NODE (attach to an existing gamescope) + LUMEN_PW_FIXED_POD (negotiation bisection) debug knobs KWin path regression-tested (zero-copy intact). gamescope end-to-end validation pending the patched gamescope build. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-09 22:16:53 +00:00
enricobuehler	a339a0466e	feat: M2 — management REST API with OpenAPI doc (control-pane groundwork) ... A versioned control-plane REST API (/api/v1) on its own port (default 127.0.0.1:47990) serving host info, runtime status, paired-client management, the pairing PIN flow, and session control (stop / force-IDR). The OpenAPI 3.1 document is generated from the handlers by utoipa, served live at /api/v1/openapi.json (+ Scalar docs at /api/docs), printable via `lumen-host openapi`, and checked in at docs/api/openapi.json for client codegen — a test fails if it drifts, mirroring the cbindgen header rule. Auth: optional bearer token (--mgmt-token / LUMEN_MGMT_TOKEN), enforced on everything but /health, and mandatory for non-loopback binds. PinGate gains a waiter count so the API can report pin_pending; logs moved to stderr so stdout stays machine-readable. Supersedes the web.rs stub. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-09 21:35:43 +00:00
enricobuehler	669d40ae21	build: migrate to ffmpeg-next 8 (FFmpeg 8.x / libavcodec 62) ... Ubuntu 26.04 ships FFmpeg 8.0 (libavcodec 62); bump ffmpeg-next 7.1 -> 8.1 to bind it as the intended pairing. No source changes needed — the encode API surface we use (avcodec_send_frame, hwframe contexts, AV_PIX_FMT_CUDA, av_log) is stable across 7->8. Workspace builds + all tests green; clippy/fmt clean. Refresh the 7.x doc references. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-09 18:13:40 +00:00
enricobuehler	7d08e43c16	feat: M2 — KWin virtual-output backend behind a VirtualDisplay trait (native client resolution) ... Honor the client's requested resolution by rendering a compositor virtual output at exactly that size — native, headless, no scaling. There is no cross-compositor Wayland protocol for this, so it's a per-compositor backend behind the (previously stubbed) VirtualDisplay trait. - vdisplay.rs: VirtualDisplay::create(mode) now returns a live VirtualOutput { node_id, remote_fd: Option<OwnedFd>, keepalive } with RAII teardown (drop releases the output) instead of an inert OutputHandle + explicit destroy. Add compositor detect() (LUMEN_COMPOSITOR / XDG_CURRENT_DESKTOP). - vdisplay/kwin.rs: the KWin backend — the zkde_screencast_unstable_v1 stream_virtual_output client (vendored protocol XML + wayland-scanner codegen). Creates a WxH output, returns its PipeWire node (default daemon, remote_fd=None); a keepalive thread holds the Wayland connection until dropped. (Moved here from capture/kwin.rs — it's a vdisplay backend, not capture.) - capture: generalize the PipeWire consumer to Option<OwnedFd> (portal remote vs. default daemon) and add capture_virtual_output(vout), compositor-agnostic, owning the keepalive. - gamestream/stream.rs: LUMEN_VIDEO_SOURCE=virtual creates a virtual display sized to the client's cfg and captures it (self-contained, not pooled — a reconnect at a new resolution gets a fresh output). - m0: --source kwin-virtual goes through the trait. Verified end-to-end against the running headless KWin: the request reaches the compositor and is handled cleanly. Native creation needs a backend implementing createVirtualOutput — the DRM backend, or the VirtualBackend since KWin 6.5.6; on this box's --virtual 6.4.5 it returns "Could not find output" (expected; validates after the KWin upgrade). wlroots/Mutter backends are the next ones to land on the same seam. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-09 17:30:02 +00:00
enricobuehler	16a00563a8	feat: M2 zero-copy foundation — EGL→CUDA import + NVENC CUDA-frame path ... Scaffolding for dmabuf zero-copy (plan §9), opt-in via LUMEN_ZEROCOPY: - src/zerocopy/{cuda,egl}.rs: hand-rolled CUDA Driver-API FFI (no Rust crate exposes the EGL-interop calls / CUeglFrame) with a shared process-wide CUcontext + pitched device buffers; an EGL importer (GBM platform on the NVIDIA render node) that turns a dmabuf into an EGLImage, registers it with CUDA, and copies it device-to-device into an owned buffer. `zerocopy-probe` subcommand validates the FFI/linking/GPU access — confirmed on the box (driver 595, EGL_EXT_image_dma_buf_import + modifiers). - CapturedFrame gains a FramePayload enum (Cpu(Vec<u8>) | Cuda(DeviceBuffer)); the encoder branches: CPU keeps the expand+upload path, CUDA wraps the device buffer in an AV_PIX_FMT_CUDA frame fed straight to hevc_nvenc (sharing our CUcontext via a hand-declared AVCUDADeviceContext, since ffmpeg-sys doesn't bind hwcontext_cuda.h). open_video/the encoder take a `cuda` flag derived from the first frame's payload. The capture-side dmabuf negotiation (which produces the Cuda frames) is the next step; the CPU path is unchanged and remains the default + fallback. Builds clean, clippy clean, tests pass. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-09 15:13:05 +00:00
enricobuehler	03a6a67354	feat: M2 P1.7 — libei input backend (portable to KWin/GNOME) ... Add a second input-injection backend that works on compositors implementing the org.freedesktop.portal.RemoteDesktop interface (KWin, GNOME/Mutter), where the wlroots virtual-input protocols are absent. Uses ashpd 0.13 to open a RemoteDesktop session + EIS fd and reis 0.6.1 to drive it as an EI sender: bind pointer/keyboard/scroll/button capabilities and, per device, start_emulating → emit → frame. Runs on a dedicated thread with its own tokio runtime (the portal session + EIS connection must stay alive and the event stream must be polled continuously); open() returns immediately so a slow or denied portal can never freeze the ENet control thread, with events enqueued over an unbounded channel until devices resume. Backend now auto-selects per session (inject::default_backend): wlr on Sway, libei on KDE/GNOME; LUMEN_INPUT_BACKEND overrides. Refactor inject.rs into the inject/{wlr,libei}.rs layout matching the capture/encode convention. Keyboard codes are evdev (the same space our VK→evdev table produces) and the compositor supplies the keymap, so no keymap upload and no modifier serialization — pressing the modifier keys Moonlight sends is enough. Add a `lumen-host input-test` subcommand that injects a scripted mouse+keyboard pattern through the session backend, so input injection can be validated without a Moonlight client. Live-validated on headless KWin (Plasma 6.4): mouse motion, left click, and the 'A' key inject correctly and are delivered to the focused client. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-09 13:58:41 +00:00
enricobuehler	72f8c05aa3	feat: M2 P1.5 (FEC) — nanors-exact Reed-Solomon recovery for the video stream ... Moonlight now reconstructs lost video shards from our parity (verified live: under induced packet loss the picture recovers cleanly instead of failing with "network connection too bad"; 0% added loss in normal operation). The decisive finding: Moonlight's nanors uses a CAUCHY generator matrix (M[j][i] = inv[(m+i)^j], GF(2^8) poly 0x1d), while reed-solomon-erasure is Vandermonde — so its parity was NOT Moonlight-decodable, despite the old gf8.rs comment claiming equivalence. lumen-core: - Swap the GF(2^8) backend from reed-solomon-erasure to a vendored fec-rs (vendor/fec-rs, BSD-2), which builds the byte-identical Cauchy matrix. Pure Rust, no FFI — keeps the "one core" hot path. This makes both lumen's own protocol and the GameStream parity nanors-compatible. - Lock it with a regression test against real nanors vectors (k=4,m=2 [10,20,30,40] -> parity [136,0]) + an independent matrix-derived cross-check + an erase/recover round-trip. Existing FEC/loopback tests stay green, so lumen's own protocol is unaffected. lumen-host video.rs: - Generate m = ceil(k*pct/100) parity shards per FEC block via Gf8Coder; stamp fecInfo with the recomputed wire pct (100*m/k) so the client derives the same count; cap per-block data to 255*100/(100+pct) so k+m <= 255. - CRITICAL byte-exactness: RS runs over the whole `blocksize` shard (Moonlight decodes packetSize+16 bytes from the datagram start and PACKET_RECOVERY_FAILUREs on a bad reconstructed `flags` byte). So the NV header fields RS must reproduce (streamPacketIndex/frameIndex/flags/multiFec*) are written into data shards BEFORE encode, and only the transport fields (RTP header/seq/timestamp + fecInfo) are stamped AFTER — leaving the flags byte RS-covered. Matches Sunshine stream.cpp. Unit-tested incl. flags recovery. - fec_percentage wired from stream.rs (Sunshine default 20, LUMEN_FEC_PCT override; 0 = data-only). LUMEN_VIDEO_DROP injects loss to test recovery. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-09 11:34:27 +00:00
enricobuehler	278a6330de	feat: M2 P1.6 — audio (Opus + AES-CBC) and steady-rate video pacing ... A stock Moonlight client now gets video + full input + AUDIO from the from-scratch GameStream host (verified live end-to-end on a macOS client). Audio (audio.rs, audio/linux.rs, gamestream/audio.rs): - Capture the default PipeWire sink's monitor (system output) as interleaved f32 stereo @ 48kHz via stream.capture.sink, on its own thread. - Opus-encode 5ms/240-sample stereo frames (RESTRICTED_LOWDELAY, CBR) and send as GameStream RTP audio: 12-byte BE RTP_PACKET (packetType 97, seq+1/pkt, timestamp += packetDuration, ssrc 0) on UDP 48000, after learning the client endpoint from its port-learning ping. - Encrypt the Opus payload with AES-128-CBC (PKCS7), key = launch rikey, IV = BE32(rikeyid + seq) in [0..4]. Like the control stream, modern Moonlight always decrypts audio regardless of the negotiated flags — plaintext makes it log "Failed to decrypt audio packet" and play silence (diagnosed from the client log). RTP header stays in the clear. Scheme cross-checked against Sunshine stream.cpp/crypto.cpp + moonlight AudioStream.c. - Pace each frame to its 5ms slot (PipeWire delivers ~1024-frame buffers) to avoid bursts the client's jitter buffer hears as glitches. LUMEN_AUDIO_GAIN applies optional linear gain for quiet sources. - DESCRIBE SDP advertises the stereo Opus config (a=fmtp:97 surround-params). Video (stream.rs): pace at a steady ≤60fps, re-encoding the last captured frame when the compositor produces none. wlroots only emits on damage, so a static or slow-updating desktop previously starved the client into a "network too slow" abort; an unchanged frame costs a near-empty P-frame. Adds a non-blocking Capturer::try_latest (portal drains to the freshest queued frame). Misc: serialize pipewire init across the video + audio capture threads (pwinit.rs, std::sync::Once) to avoid a concurrent pw_init race. Deps: opus, cbc; libopus-dev in bootstrap-ubuntu.sh. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-09 10:39:22 +00:00
enricobuehler	4c2c41acba	feat: M2 P1.4 — control-stream decryption + input injection (mouse/keyboard live) ... A stock Moonlight client can now drive the headless Sway desktop: mouse movement, buttons, scroll, and keyboard all inject through the streamed session (verified live end-to-end — typing, clicking, window management). Control stream (gamestream/control.rs): - Moonlight encrypts the ENet control stream with AES-128-GCM even though we negotiate no media encryption (it detects our Sunshine `state` and turns it on). Decrypt per-packet under the /launch `rikey`. - The exact GCM scheme is auto-detected on the first authenticating packet (nonce construction × key byte-order × tag position × AAD) since GCM gives no partial credit. Our client uses the legacy 16-byte nonce (`iv[0]=seq&0xff`) because we advertise no encryption; the 12-byte SS_ENC_CONTROL_V2 nonce is also supported. Key/IV/tag layout cross-checked against Sunshine stream.cpp + crypto.cpp and moonlight-common-c ControlStream.c. Input decode (gamestream/input.rs): - Decrypted control messages (`[u16 type][u16 len][NV_INPUT packet]`, type 0x0206) decode into lumen_core::input::InputEvent: relative/abs mouse, buttons, vert/horiz scroll, keyboard down/up. Struct layout from moonlight Input.h (size BE, magic LE, body BE; keyCode LE masked to the low-byte VK), dispatch per Sunshine input.cpp (Gen5+). Unit-tested against real captured bytes. Injection (inject.rs): - WlrootsInjector: connects to Sway as a Wayland client and injects via the wlroots virtual-pointer + virtual-keyboard protocols (uinput is invisible to a compositor running WLR_LIBINPUT_NO_DEVICES=1). Uploads an evdev/US xkb keymap, tracks modifier state, and maps Windows VK → Linux evdev (full table). Deps: aes-gcm, wayland-client, wayland-protocols-{wlr,misc}, xkbcommon (+ libxkbcommon-dev in bootstrap-ubuntu.sh). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-09 08:56:19 +00:00
enricobuehler	de60650ed3	feat(m2): live video to stock Moonlight — ENet control + video data plane ... A stock Moonlight client now decodes H.265 from the lumen host end-to-end (verified at 5120×1440@120 on RTX 5070 Ti): - control.rs: ENet control host on UDP 47999 (rusty_enet). Moonlight starts the control stream before video (STAGE_CONTROL_STREAM_START precedes _VIDEO_), so it must be up first — this was the blocker behind the earlier "error 35". - stream.rs: video data plane — on RTSP PLAY, learn the client endpoint from its ping, NVENC-encode at the negotiated mode, packetize (GameStream RTP/NV/FEC), send over UDP 47998; stops when the client disconnects. - rtsp.rs: ANNOUNCE → StreamConfig (resolution/fps/packetSize/bitrate/codec), PLAY starts the stream, TEARDOWN stops it; PairStatus=1 over the mutual-TLS port. P1.3 uses a synthetic test pattern + data-shards-only FEC (clean-LAN). Next: real portal desktop capture, input injection (decode control → uinput), nanors-exact FEC, encryption, audio. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-09 07:39:14 +00:00
enricobuehler	ab6dda2e5f	feat: M0 capture→encode pipeline + M2 GameStream host (pairing, RTSP, video) ... M0 (lumen-host) — verified on NVIDIA RTX 5070 Ti / Ubuntu 25.10: headless wlroots → xdg ScreenCast portal → PipeWire → NVENC HEVC → playable file, with each access unit round-tripped through a lumen_core host↔client Session (FEC + packetize + reassemble), 0 mismatches. - capture.rs: SyntheticCapturer + portal capture (ashpd 0.13 + pipewire 0.9), format-aware - encode/linux.rs: NVENC via ffmpeg-next 7 (BGRx/RGB → rgb0, no host-side swscale) - m0.rs: capture→encode→file + lumen-core loopback verification M2 P1 (lumen-host gamestream/) — a stock Moonlight client pairs + launches, verified live: - mDNS _nvstream._tcp + nvhttp /serverinfo (HTTP 47989, mutual-TLS HTTPS 47984) - 4-phase pairing: PIN→AES-128-ECB / SHA-256 / RSA-PKCS1v15 / X.509, custom rustls ClientCertVerifier for the mutual-TLS pairchallenge - /applist, /launch (rikey/rikeyid/mode), hand-rolled RTSP (OPTIONS/DESCRIBE/SETUP×3/ ANNOUNCE/PLAY, one-request-per-TCP-connection per moonlight-common-c's read-to-EOF) - video.rs: GameStream RTP + NV_VIDEO_PACKET wire packetizer, data-shards-only (0% FEC, clean-LAN), unit-tested (single/multi-block) Docs: docs/m2-plan.md (phased plan) + docs/research/ (ground-truth protocol spec). Bootstrap/setup updated for the verified path (libnvidia-gl, render/video groups, GPU EGL, pipewire 0.9). Workspace clippy-clean, tests green. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-09 07:14:59 +00:00
enricobuehler	a913042367	feat: M1 lumen-core (FEC/crypto/packet/session + C ABI) and workspace scaffold ... Ground-up low-latency streaming stack per docs/implementation-plan.md. M1 is complete and tested; Linux host backends are cfg-gated stubs to be filled in on real hardware (M0/M2). lumen-core (built + tested on macOS/aarch64 — 21 tests): - fec: ErasureCoder over GF(2^8) (reed-solomon-erasure, Moonlight-compatible) and GF(2^16) Leopard-RS (reed-solomon-simd, the >1 Gbps wall-breaker); proptested - packet: zero-copy #[repr(C)] framing, multi-block, FEC-aware reassembly - crypto: AES-128-GCM with per-direction nonce salts + sequence-as-AAD - session: host submit / client poll hot paths + input; loopback & UDP transports - abi: opaque handles, versioned LumenConfig, panic guards; cbindgen-generated header - acceptance: Rust loopback+proptest and a C harness that links the staticlib Scaffold (compiles green on all platforms): lumen-host (vdisplay/capture/encode/ inject/web/pipeline seams under cfg(linux)), lumen-client-rs, tools/{loss-harness, latency-probe}, Apple/Android client stubs, Gitea CI, docs. Hardened against a multi-agent adversarial review (13 verified findings fixed, regression-tested): reassembler memory-DoS bounds + block-consistency validation, GCM nonce-reuse direction separation, ABI struct_size guard + range checks, FEC shard-length guards, shard_payload datagram bound, key zeroization + Debug redaction. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-09 00:02:52 +02:00