enricobuehlerandClaude Fable 5
7ec3107b4a
Ctrl+Alt+Shift+V mutes and unmutes the microphone mid-stream — V for
voice, since M and S were taken. The uplink keeps running while muted:
`MicStreamer::spawn` takes a shared AtomicBool the capture callback reads
every quantum, and a muted callback drains whole frames and sends
nothing. Stopping the stream instead would have re-primed the device
buffers and, on Linux, re-run source selection on every unmute — a
second of glitch for a key people press mid-sentence. The sequence
counter deliberately does NOT advance while muted, so the host sees one
continuous sequence with a pause rather than a gap the size of the mute,
which its de-jitter would try to conceal frame by frame (its 600 ms
stale-flush covers the rest).
The mute lives on SessionHandle as a MicControl with two flags, not one:
`live` is raised by the pump only once the uplink is actually running, so
a session with the mic off in Settings — or whose capture device wouldn't
open — reports "nothing to mute", the chord says so in the log, and no
indicator appears. Per session, never persisted.
Muted state draws as a persistent "Microphone muted" badge in the stream's
top-right corner, off `FrameCtx::mic_muted` rather than the stats text: it
has to be there with the stats overlay Off, which is where most people
leave it. The Detailed mic line still reads throughput, so it simply falls
to zero — the badge is what answers "am I muted".
Echo cancellation stops being an env-only lever. `Settings::echo_cancel`
(default on, `#[serde(default)]` so every stored file loads with it on)
now gates the same hooks PUNKTFUNK_NO_AEC gated: the echo-cancelled
PipeWire source preference and WASAPI's Communications stream category.
The env var still wins, one-way — it can only turn AEC off, never back on
— and both `aec_enabled` helpers say so. The row ships in the GTK, WinUI
and console settings, under the microphone toggle and greyed out while it
is off, matching what Apple and Android shipped in wave 1.
SettingsOverlay grows `echo_cancel` as a first-class field — apply,
absorb, clear, is_empty — instead of riding the `extra` passthrough, where
`clear_override("echo_cancel")` answered false. The JSON key is the one
Apple and Android already write, so one catalog round-trips through all
three.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
punktfunk — Windows client
The native Windows app for streaming a punktfunk host to your PC. A modern WinUI 3 app that discovers hosts on your network, pairs with a PIN, and streams at your display's own resolution and refresh rate — with a hardware-accelerated D3D11 video path and HDR.
It's pure Rust: the UI is WinUI 3 driven through windows-reactor
(a declarative, React-like framework), and it links the shared punktfunk-core directly to speak
the fast punktfunk/1 protocol.
Features
- Hardware decode, GPU present — FFmpeg HEVC with a D3D11VA zero-copy path (decoder and
presenter share one D3D11 device; NV12/P010 textures sampled straight into a
SwapChainPanelcomposition swapchain), with a robust software-decode fallback. - HDR10 — advertise 10-bit/HDR, detect PQ in-band, and flip the swapchain to
R10G10B10A2+ ST.2084 with HDR10 metadata. - Your display's native mode — the host builds a virtual display at exactly your WxH@Hz.
- Audio both ways — WASAPI render + mic capture.
- Full controller support — SDL3 gamepads with rumble, lightbar, and DualSense feedback.
- Your display's native mode, really — "Native display" resolves the actual size + refresh of the monitor the window is on at connect time.
- Find hosts automatically — mDNS discovery lists hosts on your LAN, alongside saved and manual entries. First connect does a one-time SPAKE2 PIN pairing (or TOFU on trusted LANs), then reconnects on a pinned identity. Saved hosts carry per-host actions: a network speed test (probe burst over the real data plane → recommended bitrate, applied in one tap) and forget.
- Polished shell — host cards, settings (resolution / refresh / host compositor / decoder / codec / bitrate / HDR / forwarded controller / gamepad type / system shortcuts / audio channels / mic / stats-overlay level), the tiered stats overlay (Off / Compact / Normal / Detailed — Ctrl+Alt+Shift+S cycles it live in the session window), and the full trust surface. Stream input uses Win32 low-level hooks with Moonlight-style capture: Ctrl+Alt+Shift+Q releases the pointer, a click on the stream re-captures it, and system shortcuts (Alt+Tab, Win, …) can act locally or forward to the host.
Builds and ships for both x64 and ARM64 as a signed MSIX.
Get it
Install the signed MSIX from the package registry — see docs.punktfunk.unom.io/docs/install-client. A stock Moonlight client also works over GameStream if you prefer.
Build from source
Windows-only (the crate builds as a stub on other platforms so the workspace stays green). You need
the MSVC toolchain, an FFMPEG_DIR FFmpeg tree, and CMake (SDL3 builds from source). The Windows
App SDK runtime bootstrap is staged next to the exe by windows-reactor-setup from this crate's
own build.rs — no extra environment needed.
cargo build -p punktfunk-client-windows --target x86_64-pc-windows-msvc
# CLI paths for testing (no window):
punktfunk-client --discover # list hosts on the LAN
punktfunk-client --headless --connect host[:port] [--pin HEX] # connect, count frames, print stats
punktfunk-client --headless --speed-test --connect host[:port] # probe burst → recommended bitrate
CARGO_HOMEmust be an ASCII path — non-ASCII characters break SDL3's MSVC precompiled-header build. Packaging (MSIX manifest, signing) lives inpackaging/.
Layout
Decode/present/input live in the spawned punktfunk-session binary (clients/session), not here —
this crate is the shell that discovers, pairs, and launches it.
src/
main.rs entry point + CLI paths (--discover · --headless · --speed-test)
bin/punktfunk-console.rs the couch/HTPC Start-menu entry (re-execs with --console)
app/ WinUI 3 shell (windows-reactor), one module per screen:
mod (root/router) · hosts · connect · pair · speed · settings ·
library · help · licenses · stream · style (shared cards/pills)
deeplink.rs punktfunk:// activation, single-instance hand-off, shortcut writer
spawn.rs punktfunk-session child process + its stdout event contract
shell_window.rs hide/restore the shell HWND around a session
gpu.rs DXGI adapter enumeration for the GPU picker
trust.rs · discovery.rs persistent identity, TOFU/PIN pairing, mDNS browse
probe.rs · wol.rs speed probe · Wake-on-LAN
logfile.rs log tee to %LOCALAPPDATA%
packaging/ MSIX manifest, signing, pack script
Manual smoke checklist
The windows-reactor pin is a moving target and WinUI regressions rarely show up in cargo check —
walk this after a reactor bump or a change to the render/state architecture:
- Hosts — discovery populates tiles; tile hover fill; "…" menu → Forget and Rename; add-host modal connects; WOL wait screen cancels.
- Settings — every section renders; combos still show their selection after a section switch AND a scope switch (the historic blank-combo reconciler bug); profile create / rename / delete (with confirm); colour swatches repaint; the Overridden marker appears on edit and clears on Reset; GPU combo lists adapters.
- Pair — PIN entry pairs (the typed PIN must reach the Connect click —
use_refmirror path). - Session — connect → session spawns → HUD stats tick; Ctrl+Alt+Shift+Q releases the pointer; shell window restores on exit.
- Shell — speed test completes; library grid loads;
punktfunk://deep link routes (second instance hands off and exits); window icon appears; screen-entrance animations play.
Related
- Documentation — quick start, pairing, troubleshooting
- Project README — the host, the other clients, and how it all fits together