Files

T

enricobuehler b357934cb1 feat(clients): codec preference on Windows/Apple/Android clients (Phase 2b)

Rounds out codec negotiation across the last three clients — each advertises what it can decode,
builds its decoder from the resolved Welcome.codec, and exposes a "Video codec" preference picker.

**Windows** (Rust, mirrors Linux): `decodable_codecs()` + `ffmpeg_codec_id()`; the D3D11VA and
software FFmpeg decoders (and the mid-session D3D11VA→software demotion) open the negotiated codec
instead of hardcoding HEVC; settings gain a `codec` field + reactor ComboBox; `--codec` CLI flag.

**Apple** (Swift/C-ABI): AnnexB is now codec-aware — a `VideoCodec` enum drives H.264 vs HEVC NAL
parsing / parameter-set extraction (`CMVideoFormatDescriptionCreateFromH264ParameterSets` for H.264,
no VPS) and AVCC repacking; `PunktfunkConnection` advertises H264|HEVC via `punktfunk_connect_ex7`,
reads `resolvedCodec` (`punktfunk_connection_codec`), and threads `videoCodec` into the stage-1/2
pipelines + `VideoDecoder`; SettingsView "Video codec" Picker (auto/HEVC/H.264). AV1 is left out
(hosts don't emit it on the native path, and it's not an AnnexB codec). Test call sites updated.

**Android** (Kotlin + Rust JNI): the JNI `nativeConnect` gains `preferredCodec`; the native decode
loop picks the AMediaCodec MIME (`video/hevc`|`video/avc`) from `connector.codec` and advertises
H264|HEVC; Settings `codec` field + Compose dropdown.

Core/host/probe/Linux clippy + tests green (unchanged from 2a). Windows/Apple/Android compile on
their platform CI (this Linux box can't build them — Windows toolchain / Xcode / the Android NDK's
opus-cmake toolchain). All follow the Linux client's validated pattern.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

2026-07-02 00:29:38 +00:00

packaging

chore(licensing): LGPL FFmpeg swap, third-party notices, attribution hygiene

2026-06-29 06:20:38 +00:00

src

feat(clients): codec preference on Windows/Apple/Android clients (Phase 2b)

2026-07-02 00:29:38 +00:00

Cargo.toml

refactor: drop milestone names + consolidate clients; loss-recovery & rumble fixes

2026-06-18 21:05:58 +00:00

README.md

docs: rework client/crate READMEs, add missing ones

2026-07-01 19:31:06 +00:00

README.md

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 SwapChainPanel composition 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.
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.
Polished shell — host cards, settings (resolution / refresh / decoder / bitrate / HDR / mic), a status-chip stream HUD, and the full trust surface. Stream input uses Win32 low-level hooks with a Ctrl+Alt+Shift+Q capture toggle.

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). windows-reactor's build.rs downloads the Windows App SDK NuGets and needs CARGO_WORKSPACE_DIR set.

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

CARGO_HOME must be an ASCII path — non-ASCII characters break SDL3's MSVC precompiled-header build. Packaging (MSIX manifest, signing) lives in packaging/.

Layout

src/
  main.rs · app.rs        entry point + CLI paths; WinUI 3 shell (windows-reactor)
  present.rs · gpu.rs      SwapChainPanel D3D11 composition swapchain; shared D3D11 device
  video.rs                FFmpeg HEVC decode (D3D11VA zero-copy + software fallback)
  audio.rs                WASAPI render + mic capture
  gamepad.rs              SDL3 controllers + rumble/lightbar/DualSense feedback
  input.rs                Win32 low-level keyboard/mouse hooks → host input
  session.rs              session lifecycle over the NativeClient connector
  trust.rs · discovery.rs persistent identity, TOFU/PIN pairing, mDNS browse
packaging/                MSIX manifest, signing, pack script

Documentation — quick start, pairing, troubleshooting
Project README — the host, the other clients, and how it all fits together

README.md

punktfunk — Windows client

Features

Get it

Build from source

Layout

Related