c69195fe06
Third incremental variable. Previously the engine module was cfg-gated out of the Android build entirely (`#[cfg(not(target_os = "android"))] mod engine;` in lib.rs). Now it's always compiled, so any link-time effect of having engine.rs in the compilation unit can be measured against the working baseline from build #19. Changes kept deliberately small: - lib.rs: drop the cfg gate on `mod engine;`. `use engine::CallEngine` stays gated because the Android-specific connect/disconnect/... stubs in lib.rs don't reference the type. - engine.rs: the `wzp_client::{audio_io, call}` imports + CodecId + QualityProfile are gated to non-Android (they require the `audio` feature on wzp-client which Android doesn't pull in). On Android we keep only the MediaTransport import for transport.close(). The impl block now has two `start()` methods: the full CPAL-backed one for desktop, and a 6-line Android stub that returns `Err("audio engine not yet wired on Android")` so attempts to `connect` from the UI fail cleanly. Goal: verify that linking in the compiled engine module (plus the types it references) on Android doesn't regress the working baseline. Home screen should still render and register_signal should still work. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
WarzonePhone
Custom lossy VoIP protocol built in Rust. E2E encrypted, FEC-protected, adaptive quality, designed for hostile network conditions.
Quick Start
# Build
cargo build --release
# Run relay
./target/release/wzp-relay --listen 0.0.0.0:4433
# Send a test tone
./target/release/wzp-client --send-tone 5 relay-addr:4433
# Web bridge (browser calls)
./target/release/wzp-web --port 8080 --relay 127.0.0.1:4433 --tls
# Open https://localhost:8080/room-name in two browser tabs
Architecture
See docs/ARCHITECTURE.md for the full system architecture with Mermaid diagrams covering:
- System overview and data flow
- Crate dependency graph (8 crates)
- Wire formats (MediaHeader, MiniHeader, TrunkFrame, SignalMessage)
- Cryptographic handshake (X25519 + Ed25519 + ChaCha20-Poly1305)
- Identity model (BIP39 seed, featherChat compatible)
- Quality profiles (GOOD/DEGRADED/CATASTROPHIC)
- FEC protection (RaptorQ with interleaving)
- Adaptive jitter buffer (NetEq-inspired)
- Telemetry stack (Prometheus + Grafana)
- Deployment topology
Features
- 3 quality tiers: Opus 24k (28.8 kbps) / Opus 6k (9 kbps) / Codec2 1200 (2.4 kbps)
- RaptorQ FEC: Recovers from 20-100% packet loss depending on tier
- E2E encryption: ChaCha20-Poly1305 with X25519 key exchange
- Adaptive jitter buffer: EMA-based playout delay tracking
- Silence suppression: VAD + comfort noise (~50% bandwidth savings)
- ML noise removal: RNNoise (nnnoiseless pure Rust port)
- Mini-frames: 67% header compression for steady-state packets
- Trunking: Multiplex sessions into batched datagrams
- featherChat integration: Shared BIP39 identity, token auth, call signaling
- Prometheus metrics: Relay, web bridge, inter-relay probes
- Grafana dashboard: Pre-built JSON with 18 panels
Documentation
| Document | Description |
|---|---|
| ARCHITECTURE.md | Full system architecture with diagrams |
| TELEMETRY.md | Prometheus metrics specification |
| INTEGRATION_TASKS.md | featherChat integration tracker |
| WZP-FC-SHARED-CRATES.md | Shared crate strategy |
| grafana-dashboard.json | Importable Grafana dashboard |
Binaries
| Binary | Description |
|---|---|
wzp-relay |
Relay daemon (SFU room mode, forward mode, probes) |
wzp-client |
CLI client (send-tone, record, live mic, echo-test, drift-test, sweep) |
wzp-web |
Browser bridge (HTTPS + WebSocket + AudioWorklet) |
wzp-bench |
Component benchmarks |
Linux Build
./scripts/build-linux.sh --prepare # Create Hetzner VM + install deps
./scripts/build-linux.sh --build # Build release binaries
./scripts/build-linux.sh --transfer # Download to target/linux-x86_64/
./scripts/build-linux.sh --destroy # Delete VM
Tests
cargo test --workspace # 272 tests
License
MIT OR Apache-2.0