imquic (Meetecho)

2026-05-29: PR #27 still OPEN no new commits May 28-29 (last updated May 28 17:00 UTC = thread metadata, not code). Lorenzo’s strategic question now answered by Will Law in Slack May 27 10:30 UTC: “LOC is just a packaging format… use MSF (MOQT Streaming Format). I plan to release a new draft this Friday ahead of the London interop” (MSF -01 publishes today May 29). Lorenzo confirms imquic PR #27 already uses MSF for catalog; notes the TIMESTAMP-vs-SUBGROUP_DELIVERY_TIMEOUT conflict in moq-transport-18 §15.8-2 — Lorenzo’s working around it with custom property IDs until the cross-spec coordination gap resolves. Alan Frindell May 27 21:10 UTC suggests Jordi Cenzano migrates moq-encoder-player off moqmi (still stuck on v14). Carry-forward: with MSF -01 publishing today and Mike English asking for streaming-format-level automated interop (Issue #32) in the same thread, imquic PR #27’s catalog implementation is now reference-aligned with the canonical MSF specification; the LOC property ID conflict resolution is still pending WG-level decision.

2026-05-28: PR #27 OPEN since May 25 15:56 UTC by lminiero “New MoQ demos to test publishing/subscribing LOC with live capture/playback” (+3057/−492). Two new live-media demos: imquic-moq-loc-send captures local webcam + microphone, publishes to audio (Opus via libopus) + video (H.264 via libavcodec) tracks using LOC; imquic-moq-loc-recv subscribes, unpacks LOC, decodes media, renders audio/video locally via SDL2. Paired with Lorenzo’s #moq Slack May 27 08:21 UTC question: “Is moq-mi still relevant, or should all A/V efforts focus on LOC now?” — PR body explicitly acknowledges the dual-identity question: “this started arguably more of an implementation of moq-mi, as that’s what moq-encoder-player [arguably is]“. Uses the LOC property IDs from moq-encoder-player (Facebook, stuck on MoQT v14) “as that’s what I used to test my MoQ/WebRTC integration in Janus with that project”. Carry-forward: as of May 28 06:00 UTC no one had answered Lorenzo’s strategic question on Slack; PR #27’s draft-14-era property IDs would need re-doing for either draft-ietf-moq-loc-02 (WG, 19 pages) or the conflicting moq-transport-18 §15.8-2 property type IDs (TIMESTAMP=0x06, TIMESCALE=0x08) that moq’s May 23 PR #1388 ships — the cross-spec coordination gap moq-wg/loc Issue #20 surfaced.

2026-05-21: imquic draft-18 LANDS ON main — PR #25 MERGED May 20 09:25:23 UTC by Lorenzo Miniero (+2184/−1693, “Add support for MoQT v18”). The moq-18 branch is now folded in, ending the May 19 “branch ready, gated on interop-runner PR #68” holding pattern — Lorenzo merged unilaterally without waiting for the matrix bump. PR body lists draft-17→18 changes implemented: SUBGROUP_HEADER FIRST_OBJECT bit, FETCH ID delta encoding, new PADDING message on dedicated streams, SUBSCRIBE_TRACKS split from SUBSCRIBE_NAMESPACE, REQUEST_UPDATE on both, new redirect structure via REQUEST_ERROR, new error codes. PR #26 (RoQ demos refactor) also merged 14:06:55 UTC — main is no longer parked. lminiero.it:9000 POC relay now runs main rather than branch builds. imquic is the second open-source impl with draft-18 in main (after moq-dev May 18); 6-day spec-to-main cycle (May 12 → May 20).

2026-05-20: imquic moq-18 branch exists but unmerged to main. Lorenzo Miniero #moq-interop-runner May 19 15:40 UTC in Mike English’s PR #68 thread: “Let me know when you’re ready to go and I’ll merge the v18 branch in imquic, I finished the bulk of the work and the rest can wait.” — gated on the interop-runner’s draft-18 target merging. main last-touched April 16, but the moq-18 branch carries the draft-18 wire-format work that backs the lminiero.it:9000 POC relay. Lorenzo also did the first hands-on draft-18 interop attempt against mondain/moqxr May 19 09:12 UTC, finding a bidi-vs-uni SETUP-stream divergence that Paul Gregoire fixed in 8 commits over 10 hours. The matrix-bump / library-merge / interop-cycle ordering is now: PR #68 merges → imquic moq-18 branch merges → next interop run includes draft-18 axis → imquic vs moqxr first-cross-impl pair on draft-18 surfaces in matrix.

2026-05-19: imquic updated to draft-18 (lorenzo-miniero #moq Slack May 18 17:53 UTC): “I updated my stack to most of the changes there (hopefully the right way). I think I’m missing the ability to REQUEST_UPDATE a SUBSCRIBE_NAMESPACE/TRACKS, but I’ll try to do that in the next few days.” Second open-source implementation to ship draft-18 (after moq PR #1418 May 18 05:08 UTC). POC relay endpoint at lminiero.it port 9000 (raw QUIC + WebTransport) is publicly available for interop testing. Repo last-pushed May 18 15:51 UTC.

Language: C Organization: Meetecho Maintainer: lorenzo-miniero GitHub: meetecho/imquic POC relay: lminiero.it port 9000 (raw QUIC + WebTransport, draft-18 as of May 18, 2026)

Overview

A C library for QUIC that includes MOQ Transport support alongside RTP over QUIC (RoQ). Built as part of the Janus WebRTC gateway ecosystem.

Draft Support

• draft-18 (since May 18, 2026) — partial: most of the wire-format changes from the draft-17 → draft-18 changelog; missing REQUEST_UPDATE for SUBSCRIBE_NAMESPACE / SUBSCRIBE_TRACKS (planned for the days following May 18)
• draft-16 and draft-17 (version range: 0xff000010 to 0xff000011) — prior supported set
• Supports version negotiation - can offer all supported versions or pin to a specific one
• Previously supported draft-11 through draft-16; draft-14 was dropped when moving to v17
• Not all features of all versions are fully implemented

Public Infrastructure

• Relay at lminiero.it:9000 (raw QUIC and WebTransport)

Interop

• Registered in interop-runner matrix
• First v17 interop achieved with moq-dev (moq-dev/moq, Rust publisher + JS subscriber) (2026-04-01)
• Active interop testing at IETF 125 Shenzhen and Boulder hackathon

Related

• lorenzo-miniero - Maintainer
• interop-endpoints - Public relay endpoints
• interop-runner - Test framework