1 Commits

Author	SHA1	Message	Date
enricobuehler	2c7ded0f3c	fix(host/audio): rebuild mic passthrough — eager, self-healing virtual mic on both hosts ... Mic passthrough silently died on real hosts. Root causes, all fixed: - No liveness anywhere: a PipeWire restart (Linux) or any WASAPI device error (Windows) killed the backend worker; push() fed the dead queue for the rest of the host's life. VirtualMic now has a liveness contract (push -> bool, alive(), discard()) and the new shared audio::MicPump reopens with backoff, probing on an idle heartbeat so the mic heals BETWEEN sessions too. Validated live: systemctl restart pipewire -> node back in ~0.5 s, tone flows through the reopened backend. - Lazy creation: the mic device didn't exist until the first 0xCB frame, but games bind their capture device at launch and never re-follow. The pump opens eagerly at host start (node exists with zero clients, elected default source). - Windows headless dead-end: with VB-CABLE as the ONLY render endpoint (exactly what the installer ships), the anti-echo guard rejected the cable as the default render endpoint -> mic permanently dead. The new wiring_plan (pure, unit-tested on every platform) assigns the mic its endpoint FIRST (cable reserved for the mic), points the loopback at a DIFFERENT endpoint, and the capture side now yields (explicit endpoint or honest error) instead of the mic dying. Plan recomputed per (re)open — endpoints churn at boot/logon/driver installs. - Stale bursts: buffered audio from a previous session played into a newly-attached recorder (observed live). Timestamped chunks + a consumer-gap check in the process callback age everything past 1 s. The Linux node mechanism stays the stream-based Audio/Source with RT_PROCESS + priority.session: the canonical null-audio-sink adapter recipe was tested on this box (PipeWire 1.6.2) and never gets a clock (QUANT 0 -> pure silence), and WirePlumber reroutes a feeder targeting it to the default sink (echo). Decision documented in the module docs. Live-validated on this box (synthetic host + probe --mic-test, pw-record): eager node, both attach orderings, PipeWire-restart self-heal, post-session silence. Windows side compile/CI + on-glass validation pending. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-07-03 20:41:19 +00:00