Enhancements

[sipsorcery]

This issue is to capture issues relating o missing features for the main protocols supported or other generally useful feaures:

WebRTC:

• Session re-negotiation https://w3c.github.io/webrtc-pc/#session-negotiation-model Add support for WebRTC session re-negotation #352 Cannot detect when a track is added by the remote peer #1135
• Google congestion control algorithm Add support for the Google Congestion Control Algorithm #381
• RTCP feedback https://datatracker.ietf.org/doc/html/rfc4585 Add proper RTCP feedback support as per RFC4585 #385 H264 bad video after passing through network; issue with packetization/depacketization apparently.. #877 Problem with receiving image is error #1027
• Bandwidth estimation Bandwidth estimation #825
• Unreliabe data channels Datachannel Reliability Implementation #701
• Data channels general performance Data channels quickly slow down to a crawl under pressure #1088
• Selective Fowarding Unit (SFU) Receiving Substreams from Simulcast-Enabled Devices Without Simulcast Implementation  #976

SIP:

• Support for UPDATE requests RFC3311 Add support for RFC3311-UPDATE method #1150

RTP/SRTP:

• SRTP only supports single media type SRTP only works with a single media type at a time #648
• SRTP 256 bit keys as per RFC 7714 RFC 7714 (AES-GCM AEAD support) #871
• RTP audio level extension Issue with Audio Level RTP Extension in Janus-Gateway #1122

Video Ecnoding:

• Performance optimisations Optimisations required for 1080p #384
• VP9 support VP9 Library #505
• Specific encoding parameters Select an exact VideoFormat/AudioFormat during Webrtc SDP #675

STUN:

• Update to support latest RFC8489.