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M
MCR BOX v2.0.0-betaRELEASED AUG 2026 · MACOS · UBUNTU 24.04 CUDA · DOCKER · AWS AMI
● BETA
DESKTOP BUNDLE v2.0.0-beta · MACOS 13+ (VENTURA) · APPLE SILICON · SIGNED & NOTARIZED
PREREQUISITES (VIA HOMEBREW)
$brew install gstreamer x264 x265 yaml-cpp
- 01Open the DMG and drag MCR Box to Applications.
- 02Launch MCR Box from Applications.
- 03Open
https://localhost:8443— the embedded Web UI.
First launch may require approval in System Settings → Privacy & Security.
Every build is the full engine — there is no cut-down edition. Your account unlocks it for 30 days; after that a self-hosted license or a hosted instance by the hour keeps it running. See pricing →
CHANGELOG · v2.0.0-betaFULL CHANGELOG & KNOWN ISSUES →
NEW — Captions — CEA-608/708 and WebVTT, with optional speech-to-textNEW — SCTE-35 insertion, DASH output and AV1 (DASH/CMAF)NEW — WebRTC/WHIP ingest, transitions and stingers, multi-angle replayNEW — Remote guests with mix-minus and tally; 5.1/7.1 surround; AES67 / ST 2110-30 receiveNEW — Cross-box redundancy and gapless playout with as-run logsIMP — Deterministic A/V sync — ±20 ms on direct-mux and ABR ladder pathsIMP — Signal-aware /api/health and a Prometheus /metrics endpointIMP — SRT fast reconnect and framerate normalization for live ingestFIX — ~7% program frame loss on the encode path closedFIX — Deterministic macOS startup