RTPmeediatransporti

RTPmeediatransporti is a proposed framework for transporting Real-time Protocol (RTP) media streams across diverse networks. It aims to standardize how RTP payloads are encapsulated, delivered, and synchronized when traditional UDP-based RTP paths are insufficient, such as under high latency, programmable networks, or edge-computing environments.

Its architecture centers on a pluggable transport layer and a session-layer signaling model. The transport layer provides adapters for multiple transport protocols (UDP, TCP, QUIC), with optional reliability modes and congestion control. The session layer handles stream multiplexing, end-to-end timing via RTP timestamps, and identification of media streams using conventional payload types and synchronization source identifiers. A control plane negotiates capabilities using a description format compatible with SDP or a JSON-based alternative.

Interoperability emphasizes compatibility with existing RTP and RTCP practices. RTPmeediatransporti preserves RTP payload formats, clock domains, and feedback messaging, while allowing enhanced congestion feedback and selective retransmission where supported. Security features may integrate SRTP or DTLS-based key exchange, depending on the underlying transport.

Use cases include enterprise video conferencing, live streaming, and interactive media applications that require resilient transport and flexible network traversal. Adoption remains experimental, with references in industry whitepapers and academic studies exploring performance benefits and deployment considerations.

See also: Real-time Transport Protocol (RTP), RTCP, SRTP, QUIC, SDP.