Talon
8c90e250f0
Implement system/desktop audio sharing on the Apple clients, feeding the existing SCREEN_AUDIO Opus -> AEAD -> UDP path via vc_stream_feed_pcm. No C++/protocol/codec changes -- the core was already ready (the Windows-only loopback is #ifdef VOICECAT_HAS_LOOPBACK; off Windows the stream just waits for fed PCM). Audio only; video is dropped. macOS (in-process): - ScreenAudioCapture.swift drives an audio-only SCStream (excludesCurrentProcessAudio), converts Float32 -> int16 in the channel's mono/stereo mode, and calls feedPcm. Capture starts on the self .streamStarted event (effective config known then). Wired into MainWindowController.screenAudioClicked(). iOS (forward-to-host, single session): - VoiceCatBroadcast: a ReplayKit Broadcast Upload Extension consumes .audioApp only, resamples to 48kHz int16 stereo (AVAudioConverter), and writes a shared App Group SPSC ring (BroadcastAudioRing.swift). It does not link libvoicecat. - Host BroadcastAudioPump drains the ring (reacting to the extension's Darwin notifications) and feeds the SCREEN_AUDIO stream it owns, downmixing to mono when the channel is mono. Screen audio appears as a second stream of the same user; no credentials persisted. UI is RPSystemBroadcastPicker View in VoiceControlsView. Removes the speculative BroadcastCredentials. Docs: voice.md s9, CLAUDE.md status, PROGRESS.md.
VoiceCat
Self-hosted, native voice & text chat in the spirit of classic TeamSpeak / Mumble —
channel-based voice, channel + private text, one server you run yourself. Plain TCP
(control) and UDP (media), no WebRTC. Encrypted by default. A shared C++ core
(libvoicecat) drives native clients (Swift on macOS/iOS, C# on Windows) and the server.
Status: Design complete in
docs/. M1–M5 are implemented — real TLS control plane, encrypted UDP voice (Opus), multi-stream, TOFU identity pinning, channel tree, permissions, moderation, disconnect/keepalive/reaper. Windows WinForms C# client shipped (M4). macOS/iOS Swift client is next. SeePROGRESS.mdanddocs/roadmap.md.
Read the design first
The docs/ folder is the source of truth. Start at docs/README.md,
then architecture → protocol → voice → security → tech-stack → deployment →
roadmap.
Build
The default development preset is dev — it builds everything (server + tools + tests)
with real vcpkg deps. It works on Windows, Linux, and macOS (vcpkg triplet auto-resolved).
# one-time vcpkg setup:
git clone https://github.com/microsoft/vcpkg && ./vcpkg/bootstrap-vcpkg.sh # .bat on Windows
export VCPKG_ROOT=/path/to/vcpkg # Linux/macOS; or $env:VCPKG_ROOT on PowerShell
# configure + build + test:
cmake --preset dev
cmake --build --preset dev
ctest --preset dev # 21 behavior tests
Artifacts land in build/dev/bin/ (voicecat-server, vccli, voicecat-admin).
The skeleton preset (no vcpkg deps, stubs only) is a fast smoke check that needs no
third-party libraries:
cmake --preset skeleton && cmake --build --preset skeleton && ctest --preset skeleton
See docs/building.md for the full preset matrix (including release,
server-release, windows-client, and Apple platform scaffolding).
Layout
docs/ design spec (read this)
core/ libvoicecat — the shared C++ core
include/ voicecat.h (the C ABI all clients call)
proto/ voicecat.proto (control-plane wire format, source of truth)
src/ net/ crypto/ codec/ protocol/ session/ audio/ (stubs today)
server/ voicecat-server (headless; links the core)
tools/vccli/ headless test client — drives the protocol from M1 on
clients/ apple/ (Swift, M4) windows/ (C#, M4) — placeholders for now
tests/ CTest targets
License
Permissive-only dependencies (no GPL/LGPL) so the project can be redistributed freely,
including closed-source. Project license: TBD (see docs/tech-stack.md §5).