Changed #

• Upgrade pointycastle from 3.9.1 to 4.0.0
• Apply dart format to all source files
• Add example/example.md for pub.dev Example tab
• Add quickstart examples matching README inline code

Fixed #

• Remove unnecessary casts for pointycastle 4.0.0 compatibility
• Fix curly brace style in certificate_request.dart

Initial release - complete Dart port of werift-webrtc v0.22.2.

Features #

Core Protocols

• STUN message encoding/decoding with MESSAGE-INTEGRITY and FINGERPRINT
• ICE candidate model (host, srflx, relay, prflx)
• ICE checklists, connectivity checks, nomination
• ICE TCP candidates and mDNS obfuscation
• ICE restart support
• DTLS 1.2 handshake (client and server) with certificate authentication
• SRTP/SRTCP encryption (AES-GCM)
• RTP/RTCP stack (SR, RR, SDES, BYE)
• SCTP association over DTLS
• DataChannel protocol (reliable/unreliable, ordered/unordered)
• SDP parsing and generation

Video Codec Depacketization

• VP8 depacketization
• VP9 depacketization with SVC support
• H.264 depacketization with FU-A/STAP-A
• AV1 depacketization with OBU parsing

RTCP Feedback

• NACK (Generic Negative Acknowledgement)
• PLI (Picture Loss Indication)
• FIR (Full Intra Request)
• REMB (Receiver Estimated Max Bitrate)

Retransmission

• RTX packet wrapping/unwrapping
• RetransmissionBuffer (128-packet circular buffer)
• RTX SDP negotiation

TURN Support

• TURN allocation with 401 authentication (RFC 5766)
• Channel binding (0x4000-0x7FFF)
• Permission management
• Send/Data indications
• ICE integration with relay candidates

TWCC (Transport-Wide Congestion Control)

• Transport-wide sequence numbers (RTP header extension)
• Receive delta encoding/decoding
• Packet status chunks
• Bandwidth estimation algorithm

Simulcast

• RID (Restriction Identifier) support (RFC 8851)
• RTP header extension parsing for RID/MID
• SDP simulcast attribute parsing
• RtpRouter for RID-based packet routing

Quality Features

• Jitter buffer with configurable sizing
• RED (Redundancy Encoding) for audio (RFC 2198)
• Media Track Management (addTrack, removeTrack, replaceTrack)
• Extended getStats() API (ICE, transport, data channel stats)

Media Recording

• WebM container support
• MP4 container support (fMP4)
• EBML encoding/decoding

Browser Compatibility

• Chrome: Tested and working
• Firefox: Tested and working
• Safari: Tested and working

Test Coverage #

1658 tests covering all implemented components.

Acknowledgments #

This is a Dart port of werift-webrtc by Yuki Shindo.