Media over QUIC (MoQ): The Streaming protocol redefining low-Latency, scalable, and secure media delivery

What is MoQ (Media over QUIC)?

MoQ represents a modern transport protocol for real-time media currently under standardization by the IETF. Built on QUIC (Quick UDP Internet Connections), it leverages features including stream multiplexing, congestion control, and built-in encryption.

Unlike TCP, which experiences head-of-line blocking delays, QUIC allows independent streams to proceed unaffected when others experience interruptions. MoQ expands this capability specifically for live and on-demand media with real-time performance characteristics.

Core Technical Components:

• MoQ Transport (MoQT): The protocol layer for media ingestion and distribution over QUIC, consolidating publishing and playback into one transport mechanism

• Catalog: A metadata framework similar to HLS/DASH manifests for discovering available streams

• Containers: Supports lightweight packaging formats like LOC (Low Overhead Container) for ultra-low-latency scenarios

MoQ vs. Traditional Streaming Protocols

MoQ addresses HTTP-based streaming limitations by offering:

• Substantially reduced latency through faster connection establishment

• Elimination of head-of-line blocking via stream independence

• In-network caching enabling intermediate relays to serve cached content

• Single unified protocol for both ingest and playback operations

• Default end-to-end encryption using TLS 1.3

The protocol effectively "merges the low-latency of WebRTC with the scalability of HLS/DASH."

Qualabs’ Contribution: The MoQ Player Project

During Montevideo Tech Summer Camp 2025, Qualabs developed a production-grade MoQ Player implementation. The project objectives included:

• Creating a deployable streaming player for modern websites

• Simplifying MoQ learning and experimentation

• Contributing code feedback to the community via moq-js

• Establishing new backend-frontend protocol interfaces

Key Player Features:

• Playback engine integrated with moq-js for protocol implementation

• Web Component (<video-moq>) mimicking native video tag functionality

• player.style UI integration providing modern video controls

• Custom event system emitting playback updates and stream state information

• NPM distribution at @moq-js/player for JavaScript/TypeScript projects

• Adaptive playback exploration including buffer and ABR strategy experiments

Nicolás Levy noted: "This player can serve as a valuable tool for advancing the MoQ standard, supporting research efforts."