Siavash Sameni
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4fb15fe7a3
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feat: P3-T3 bandwidth estimation — GCC-style congestion control
BandwidthEstimator tracks available bandwidth using dual signals:
Delay-based: EMA of RTT vs baseline minimum. If RTT > 1.5x baseline
→ Overuse (congestion). If RTT < 1.1x baseline → Underuse (headroom).
Baseline slowly drifts up to handle route changes.
Loss-based: sliding window of 10 loss samples. Average > 5% → congested.
Rate adaptation (AIMD):
- Overuse OR loss congested: decrease 15% (multiplicative)
- Underuse AND no loss: increase 5% (additive)
- Normal: hold steady
- Clamped to [min_bw, max_bw]
recommended_profile() maps bandwidth to quality tier:
- >= 25 kbps → GOOD (Opus 24k + 20% FEC)
- >= 8 kbps → DEGRADED (Opus 6k + 50% FEC)
- < 8 kbps → CATASTROPHIC (Codec2 1200 + 100% FEC)
from_quality_report() integrates with existing QualityReport packets.
54 proto tests passing (12 new bandwidth tests).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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2026-03-29 18:51:08 +04:00 |
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Siavash Sameni
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34cd1017c1
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feat: IAX2-inspired protocol improvements — trunking, mini-frames, silence suppression, call control (P2-T6/T7/T8/T9)
WZP-P2-T6: Trunking
- TrunkFrame/TrunkEntry: pack N session packets into one datagram
- Wire format: [count:u16][session_id:2][len:u16][payload]...
- TrunkBatcher: batches by count (10) or bytes (1200), flushes on limit
- 5 tests: encode/decode roundtrip, empty frame, batcher fill/flush, byte limit
WZP-P2-T7: Mini-frames
- MiniHeader: 4-byte delta header (timestamp_delta + payload_len)
- FRAME_TYPE_FULL (0x00) / FRAME_TYPE_MINI (0x01) discriminator
- MiniFrameContext: expands mini-headers to full by tracking baseline
- Saves 8 bytes per packet (5 vs 13 bytes with type prefix)
- 5 tests: encode/decode, wire size, context expand, no baseline, size comparison
WZP-P2-T8: Silence suppression
- SilenceDetector: RMS-based detection with hangover (5 frames = 100ms)
- ComfortNoise: low-level random noise generator
- CodecId::ComfortNoise variant for CN packets
- CallEncoder: suppresses silent frames, sends 1-byte CN every 200ms
- CallDecoder: generates comfort noise on CN packets
- ~50% bandwidth savings in typical conversations
- 6 tests: silence/speech detection, hangover, CN generation, RMS math, suppression
WZP-P2-T9: Call control signals
- SignalMessage: Hold, Unhold, Mute, Unmute, Transfer, TransferAck
- CallSignalType mapping in featherchat.rs for all new variants
- 4 serde roundtrip tests + signal type mapping tests
255 tests passing across all crates.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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2026-03-28 14:13:05 +04:00 |
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Siavash Sameni
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51e893590c
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feat: WarzonePhone lossy VoIP protocol — Phase 1 complete
Rust workspace with 7 crates implementing a custom VoIP protocol
designed for extremely lossy connections (5-70% loss, 100-500kbps,
300-800ms RTT). 89 tests passing across all crates.
Crates:
- wzp-proto: Wire format, traits, adaptive quality controller, jitter buffer, session FSM
- wzp-codec: Opus encoder/decoder (audiopus), Codec2 stubs, adaptive switching, resampling
- wzp-fec: RaptorQ fountain codes, interleaving, block management (proven 30-70% loss recovery)
- wzp-crypto: X25519+ChaCha20-Poly1305, Warzone identity compatible, anti-replay, rekeying
- wzp-transport: QUIC via quinn with DATAGRAM frames, path monitoring, signaling streams
- wzp-relay: Integration stub (Phase 2)
- wzp-client: Integration stub (Phase 2)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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2026-03-27 12:45:07 +04:00 |
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