When no --remote is configured, the relay now operates in bridge mode:
- First client connects → echoes while waiting for a peer
- Second client connects → both clients are bridged bidirectionally
- A's packets go to B, B's packets go to A
- Stats logged every 5 seconds (a_to_b / b_to_a packet counts)
- Falls back to echo if only one client connects
This enables the core use case: two clients on different networks
calling each other through a single relay.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Reduced jitter buffer min_depth from 25 (500ms) to 3 (60ms) for fast start
- Fixed live recv loop: decode once per source packet instead of draining
the jitter buffer dry (which advanced seq past future packets)
- Fixed Ok(None) handling: connection closed, not "no packet yet"
Live echo test confirmed working with continuous audio.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- --record now handles Ctrl+C: saves PCM file before exiting
- Relay without --remote runs in echo mode (loops packets back to sender)
instead of sink mode, enabling single-relay audio testing
- recv task returns collected PCM via channel for clean file write
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- cpal is now behind an 'audio' feature flag (off by default)
- --live mode requires --features audio at build time
- --send-tone and --record work on headless servers without audio libs
- Linux build script no longer installs libasound2-dev
Build for headless: cargo build --release
Build with mic/speakers: cargo build --release --features audio
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
CLI modes:
- --send-tone <secs>: send 440Hz test tone (no mic needed)
- --record <file.raw>: save received audio to raw PCM file
- --help: usage info
- Combine: --send-tone 10 --record out.raw
Raw PCM format: 48kHz mono s16le
Play with: ffplay -f s16le -ar 48000 -ac 1 out.raw
Build scripts:
- scripts/build-linux.sh: Hetzner VPS build with auto-cleanup
- scripts/cleanup-builder.sh: kill stale builders
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
The bench tool now auto-calculates the FEC ratio needed to survive
the requested loss percentage, matching how the adaptive quality
controller would behave in production.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
