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punktfunk/crates/punktfunk-client-rs/Cargo.toml
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enricobuehler 0755c823a5
ci / rust (push) Has been cancelled
feat: mic passthrough — client microphone → host virtual PipeWire source
The inverse of the host→client audio path: the client's mic, Opus-encoded, rides a
new 0xCB QUIC datagram to the host, which decodes it into a virtual PipeWire
Audio/Source its apps can record from (voice chat, etc.).

Protocol (punktfunk-core):
- MIC_MAGIC 0xCB + encode/decode_mic_datagram (mirror of the 0xC9 audio datagram).
- NativeClient::send_mic(seq, pts_ns, opus) over a new outbound channel + worker task
  (mirror of send_input); C ABI punktfunk_connection_send_mic for native clients.

Host:
- audio::VirtualMic + PwMicSource: a PipeWire output stream tagged media.class=
  Audio/Source (Direction::Output) — a recordable microphone node, fed decoded PCM.
- MicService: host-lifetime owner of the source + Opus decoder (mirror of
  InjectorService / the audio capturer slot); lazily opened, persists across sessions,
  self-heals. The per-session datagram reader now demuxes 0xCB→mic / 0xC8→input over a
  single read_datagram loop (two loops would race).
- Adaptive jitter buffer in the producer: primes to ~3 consumer quanta before emitting,
  so the 5 ms push / N ms pull clock skew never underruns — without it ~58% of output
  was silence; with it, glitch-free across consumer quanta.

Client: punktfunk-client-rs --mic-test streams a synthetic 440 Hz Opus tone as the mic
uplink (opus dep added) for end-to-end validation without a real microphone.

Validated live on headless KWin: client tone → host source → pw-record shows the
punktfunk-mic Audio/Source node, 440 Hz dominant (Goertzel power 20.7 vs <0.001
elsewhere), RMS 0.179 ≈ the ideal 0.177, 0.3–0.4% silence at both 256 ms and 10 ms
consumer quanta. Tests +1 (mic datagram roundtrip); workspace green, clippy/fmt clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-10 22:15:07 +00:00

19 lines
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TOML

[package]
name = "punktfunk-client-rs"
description = "punktfunk reference client (M4): VAAPI decode + wgpu/Vulkan present"
version.workspace = true
edition.workspace = true
rust-version.workspace = true
license.workspace = true
authors.workspace = true
repository.workspace = true
[dependencies]
punktfunk-core = { path = "../punktfunk-core", features = ["quic"] }
quinn = "0.11"
tokio = { version = "1", features = ["rt-multi-thread", "net", "time", "macros"] }
anyhow = "1"
opus = "0.3"
tracing = "0.1"
tracing-subscriber = { version = "0.3", features = ["env-filter"] }