Subscribe the OBS source as a playback-only LGMP audio client. Decode
the advertised formats and channel maps, then resample into the OBS
clock domain without participating in driver clock feedback.
Keep queue and resampler storage fixed in the packet path.
Replace the single-owner PCM queues with one shared LGMP SPMC stream.
Give each admitted client reliable state and an independent playback
cursor, while clients without clock authority resample locally.
Extend the audio protocol with per-client epochs and barriers.
Keep capture exclusive and bound authority backpressure so slow
secondary readers cannot affect the disciplined low-latency path.
Give microphone data priority over replaceable clock feedback and
reduce feedback traffic on the shared client-to-host FIFO.
Retry short FIFO stalls outside the realtime thread and coalesce
consecutive packets in the existing fixed Windows buffers.
Avoid one broker write per tiny PipeWire quantum without adding
allocations or intentional capture latency.
Advertise signed and floating-point 32-bit formats across mono,
stereo, quad, surround, 5.1, and 7.1 at every supported rate.
Carry sample encoding through the broker and LGMP protocol so integer
and floating-point streams remain distinct.
Expand packet, shared-memory, and ring capacity for eight-channel
32-bit audio.
Forward coalesced feedback through the broker to the render clock.
Keep capture independent and apply the rate to WaveRT timing.
Bound and slew targets, then restore unity when feedback stalls.
Withdraw feedback after the watchdog makes fallback safe.
Keep initial playback prewarming, but announce STOP when a stream that
has already run enters PAUSE or ACQUIRE. Restart it when RUN returns.
Keep RUN history across owner changes so a paused stream is not
mistaken for a new prewarm generation.
Only announce capture while it is running. Derive active status flags
from the stream generations successfully announced to the client.
Queue playback STOP, START, and DATA for the same wire generation.
Verify that the client creates a fresh local generation and delivers the
first restarted packet.
Persist hardware-ID installation for the LGAudio WDK project and
enable deployment in every existing solution configuration.
This allows LGAudio to run as the kernel-debugger startup project.
Treat the binding phase as the authoritative shutdown state after
graceful stream release.
Cover disconnect while the host drains and unbinds both streams.
Publish committed WaveRT render frames on a 4 kHz timer while keeping
packet completion and notification semantics unchanged.
Serialize clock sampling with position updates to prevent concurrent
queries from replaying elapsed time.
Scope the legacy latency offset to classic SPICE and use the LGMP
poll bound as its fixed arrival reserve. Keep learned jitter additive.
Select provider clock feedback only when the current remote endpoint
advertises it, avoiding a failed startup attempt on broker v1.
Move audio ingress and playback-credit recovery off the display timer.
Poll through a dedicated MMCSS worker at sub-millisecond intervals.
Wake capture retries immediately and drain queued client records during
release so backpressure cannot stall recording or shutdown.
Add optional playback and capture streams to the LGMP transport.
Negotiate ownership over the existing control path and keep audio
availability isolated from display transport readiness.
Route broker packets through public LGMP stream APIs without changing
the LGMP queue table or shared-memory mapping.
Open the optional audio broker from a passive worker and move bounded
playback and capture packets through a transport-neutral audio hub.
Attach audio sources after transport initialization without making audio
driver availability part of display transport readiness.
Expose cancel-safe direct-I/O queues for reading rendered frames and
writing captured frames through the private broker endpoint.
Separate render and capture storage, publish format and state
generations, and preserve local loopback while no broker is bound.
Advertise optional audio mediation separately from runtime driver
availability, then negotiate ownership through the existing LGMP
client-control path.
Define fixed playback and capture stream records for packed PCM,
endpoint state, clock feedback, and targeted descriptor discovery.
Keep the LGMP queue table, recovery sidecar, and submodule unchanged.
Expose a private, versioned control device that lets the IDD discover
and claim the active audio adapter without using the public PortCls
endpoints.
Restrict access to SYSTEM and UMDF hosts, track adapter and binding
generations, and keep broker failure optional. Reserve data-plane
capabilities without advertising them until PCM queues are available.
