Proposal for replacing the C++ core, C++ server, and Swift macOS/iOS
clients with a single .NET 10 / C# codebase.
Covers the dependency map (8 vcpkg deps + 1 vendored -> 3 native libs),
the real-time-audio design, per-client strategy, a test-porting plan for
all 29 ctest cases, doc-sync work, an 11-phase migration, and a risk
register.
Two findings drive the shape of the plan:
- SslStream has no RFC 5705 keying-material exporter, which the media
AEAD key derivation depends on (docs/security.md 2). The API is an
unapproved proposal and SChannel structurally cannot export secrets.
Recommends BouncyCastle's managed TLS 1.3 stack, which does implement
the exporter and keeps the wire format byte-compatible with the C++
implementation -- so the existing tree stays usable as a conformance
oracle throughout the port. Protocol-v3 in-band media keys documented
as the fallback.
- The iOS ReplayKit broadcast upload extension stays in Swift: 50 MB
jetsam cap plus an unsupported extension type in .NET for iOS, and it
already doesn't link the core. Leaves one Swift file plus the shared
App Group ring.
Indexed in docs/README.md. Nothing here is implemented yet.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Adds vcpkg as a submodule at vcpkg/, pinned to the exact commit vcpkg.json
already declares as builtin-baseline, so the bundled checkout and the
manifest's resolved port versions can never drift apart.
cmake/voicecat-toolchain.cmake, scripts/common.sh, and
clients/apple/scripts/build-xcframework.sh now resolve vcpkg as:
VCPKG_ROOT env var (external checkout) > bundled submodule. Docs updated
to describe the new one-time setup.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Removes leftover debug scaffolding (stray Console.WriteLine/NSLog traces,
dead nick_buf_ptr, a no-op --print-config flag now implemented for real),
fixes stale/misleading comments (channel passwords are no longer a "future
M5+" feature, a wrong cross-reference, a stale TlsContext::close() mention,
an incomplete BanRecord::subject_type doc, and a smoke test pointing at a
build/m1-dev preset that no longer exists), strips internal M1-M5 milestone
jargon from comments now that the roadmap is done, trims comments that just
restated the following line, and consolidates a few "why" explanations that
were duplicated 2-3 times in the same file.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Adds Assets.xcassets with a placeholder 1024x1024 AppIcon so Xcode
compiles CFBundleIconName and the required icon sizes into the bundle.
Replaces UILaunchStoryboardName (missing storyboard) with UILaunchScreen
dict, valid for iOS 14+ (min target is iOS 18). Fixes all four App Store
Connect validation errors blocking TestFlight upload.
Changes main app bundle ID from cat.voice.VoiceCatiOS, broadcast extension
from cat.voice.VoiceCatiOS.broadcast, and App Group from group.cat.voice.VoiceCat
to match the registered App Store identifier.
Drop the M0 no-deps skeleton preset and all VOICECAT_HAS_NET/AUDIO/OPUS/NS
guards that it required. Every subsystem is fully implemented; the stub
#else paths were dead code that added noise to every header and source file.
- CMakePresets.json: remove skeleton configure/build/test entries
- CMakeLists.txt (root/core/tests): remove VOICECAT_USE_VCPKG_DEPS option
and guards; all targets now build unconditionally
- 17 C++ source files: unwrap HAS_* guards, delete stub #else blocks
- apm_processor.cpp: delete ApmPassthrough no-op class; create() always
returns RnnoiseProcessor
- 18 test files: remove HAS_* guards and stub int main() skip bodies
- docs/building.md: remove skeleton from preset table and prose
VOICECAT_HAS_LOOPBACK (Windows WASAPI loopback platform gate) unchanged.
29/29 ctest green.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Recovery from the 99937c9 audio-device-change commit broadened the
route-change recovery set to "everything except categoryChange /
routeConfigurationChange", which added .override. But .override is
fired by our own applyA2dpSpeakerFallback() -> overrideOutputAudioPort,
which recoverAudio() calls on every recovery. On an A2DP preset
(Stereo Mic / Mono Mic), disconnecting AirPods ping-ponged:
oldDeviceUnavailable -> recoverAudio -> applyA2dpSpeakerFallback
-> overrideOutputAudioPort(.speaker) -> .override routeChange
-> recoverAudio -> applyConfiguration (setCategory resets override)
-> applyA2dpSpeakerFallback -> overrideOutputAudioPort -> .override -> ...
Each iteration also rebuilt the AVAudioEngine via reconfigure() ->
rebuild() -- the audible reinitialize loop + CPU spin. Voice Chat and
Built-in Mic + Speaker were unaffected (applyA2dpSpeakerFallback
early-returns for non-A2DP modes, so no overrideOutputAudioPort call).
Two-part fix (pure Swift iOS-app target; no C ABI / proto / docs changes):
1. AudioSessionManager.handleRouteChange: added .override to the skip
list alongside .categoryChange / .routeConfigurationChange. .override
is only ever fired by our own overrideOutputAudioPort call, so
treating it as a recovery reason is the loop by definition. The
AVAudioEngineConfigurationChange observer in IOSVoiceProcessingEngine
remains as the backstop if an override ever actually stops the engine.
2. IOSAudioRouter.applyA2dpSpeakerFallback: made idempotent via a
lastAppliedOutputOverride tracker that skips the redundant
overrideOutputAudioPort call when the desired state (.none for
external output present, .speaker otherwise) already matches. Reset
to nil at the top of applyConfiguration() (setCategory can reset the
override) and on a failed call. Defense-in-depth on top of fix 1.
Build: xcodebuild -project clients/apple/iOS/VoiceCatiOS.xcodeproj
-scheme VoiceCatiOS -destination 'generic/platform=iOS' build green
(Xcode 26.5 / iOS 18.0).
Talon
