Modular, open-source MoQ player template authored by the Red5 team and developed under the OpenMOQ Software Consortium. A TypeScript reference implementation covering the full stack from WebTransport to viewport, with pluggable building blocks for any MoQ streaming format.

Playa is an open-source MoQ player template authored by the Red5 team. Designed to accommodate configurations of players for device playback of virtually any MoQ-compatible streaming format operating over the MoQ Media Layer, it is the OpenMOQ Software Consortium’s framework for MoQ player development, and now lives in the OpenMOQ organization alongside the moqx relay.

It describes itself as a reference implementation of MoQT in TypeScript, providing a full stack from WebTransport to viewport: protocol core, playback, and browser adapters.

Design principles

Testability of processing and pipeline logic independent of platform-specific decoding and rendering APIs
Framework compatibility with independent UIs and state-based rendering targets
Extensibility via pluggable extension points for object transforms, recovery policies, and application-specific events

Architecture blocks

MoQ Transport management (QUIC and WebTransport, plus stream multiplexing)
Session management
Catalog parsing and track enumeration
Packaging management — supports LOC or CMAF (preferably both)
Media pipeline stability — jitter buffering, gap detection, A/V sync, decoder state control
Video and audio rendering with frame timing
Quality control — ABR track selection and switching
Recovery — error detection, escalation, and reconnection

Other requirements

Access authentication aligned with MoQ Relay Requirements — CAT-4-MoQ tokens and/or Privacy Pass recommended
TLS 1.3+ for all connections, per QUIC; self-signed certificate hashes supported for WebTransport development
MoQT draft-16 by default, with draft-18 (moqt-18 — uni control-stream pair plus per-request bidi streams) and draft-14 for legacy interoperability
Operational metrics (time-to-first-frame, stall count, latency, quality switches) and MoQT qlog event tracing

OpenMOQ Software Consortium

Playa is developed under the OpenMOQ Software Consortium. Founding members include Red5, Akamai, CDN77, Cisco, Synamedia, and YouTube; subsequent members include Bitmovin, qualabs, Vindral, Wowza, Austria’s University of Klagenfurt, and Özyeğin University.